Extracting prog: 53.640944975s
Minimizing prog: 55m21.32570321s
Simplifying prog options: 0s
Extracting C: 2m13.612659952s
Simplifying C: 22m9.787952189s


extracting reproducer from 35 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic-ioctl$sock_SIOCGIFINDEX-bpf$PROG_LOAD_XDP-socket$nl_route-sendmsg$nl_route-syz_genetlink_get_family_id$netlbl_mgmt
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r7 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r7, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r8=>0x0})
r9 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, 0x0)
sendmsg$nl_route(r7, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r8, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
r10 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX(r10, 0x8933, &(0x7f00000003c0)={'netdevsim0\x00'})
bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0)
r11 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r11, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0)
syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r6)

program crashed: KASAN: use-after-free Read in ax25_release
single: successfully extracted reproducer
found reproducer with 28 syscalls
minimizing guilty program
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic-ioctl$sock_SIOCGIFINDEX-bpf$PROG_LOAD_XDP-socket$nl_route-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
r9 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f00000003c0)={'netdevsim0\x00'})
bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0)
r10 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r10, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic-ioctl$sock_SIOCGIFINDEX-bpf$PROG_LOAD_XDP-socket$nl_route
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
r9 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f00000003c0)={'netdevsim0\x00'})
bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0)
socket$nl_route(0x10, 0x3, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic-ioctl$sock_SIOCGIFINDEX-bpf$PROG_LOAD_XDP
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
r9 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f00000003c0)={'netdevsim0\x00'})
bpf$PROG_LOAD_XDP(0x5, 0x0, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
r9 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f00000003c0)={'netdevsim0\x00'})

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$nl_generic
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)
socket$nl_generic(0x10, 0x3, 0x10)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00', <r7=>0x0})
r8 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, 0x0)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000001140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="400000001000030500000000fddbdf0000000000", @ANYRES32=0x0, @ANYBLOB="0288010d0030040020001280080001006d6808000000", @ANYRES32=r7, @ANYBLOB="08000200", @ANYBLOB="75e1ab568cc7c185226a610370159f3719991a067a5ca031dbcb088270c6d76d4777989f5303be9172fc937b3ea1ff49e483e0a3ad6b0264c172cea6a534f475a0f0b9dca81560c8e67398490e781266d6533135157ae48fbcf0a7ff289d5711d14f88f5798d32932b76344a91ec31dee1529f6c1d77f3d08dc9a35e49500d6315b3ce3bcf4e0b03d3c64d241d3b65f8c0"], 0x40}}, 0x4008054)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00'})
r7 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r7, 0x8933, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX-socket$inet6_udp
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00'})
socket$inet6_udp(0xa, 0x2, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r6 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000100)={'macvlan1\x00'})

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic-socket$nl_route
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
socket$nl_route(0x10, 0x3, 0x0)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$nl_generic
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r2=>0xffffffffffffffff})
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r3, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000))
r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @default]})

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
syz_init_net_socket$ax25(0x3, 0x2, 0xcc)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))
r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-ioctl$sock_SIOCGIFINDEX-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r2, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(0xffffffffffffffff, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-bind$ax25-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080))
r1 = syz_init_net_socket$ax25(0x3, 0x2, 0x0)
bind$ax25(r1, &(0x7f0000000100)={{0x3, @default, 0x1}, [@null, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @default, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @null]}, 0x48)
r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$ax25-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
syz_init_net_socket$ax25(0x3, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-syz_init_net_socket$bt_sco-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-openat$tun-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-read$alg-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
read$alg(r0, &(0x7f0000000140)=""/180, 0xb4)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000))
r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): accept4$alg-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
accept4$alg(0xffffffffffffffff, 0x0, 0x0, 0x80800)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000))
r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0)
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, 0x0, 0x0)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, 0x0)
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program did not crash
testing program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.541915581s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
simplifying C reproducer
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program did not crash
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program did not crash
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program did not crash
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program did not crash
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing compiled C program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
testing program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
testing program (duration=45.541915581s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r0=>0xffffffffffffffff})
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'})
r1 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r1, 0x8914, &(0x7f0000000000))
r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc)
setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10)

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
reproducing took 1h24m3.112746464s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
BUG: KASAN: use-after-free in ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495
Read of size 4 at addr ffff0000d2c34638 by task syz.0.18/4166

CPU: 1 PID: 4166 Comm: syz.0.18 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x78/0x30c mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xec/0x15c mm/kasan/report.c:451
 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308
 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
 ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495
 ax25_setsockopt+0x8d0/0xa5c net/ax25/af_ax25.c:690
 __sys_setsockopt+0x2f8/0x4b0 net/socket.c:2203
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 4164:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xb0/0xf0 mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 kmem_cache_alloc_trace+0x274/0x3fc mm/slub.c:3247
 kmalloc include/linux/slab.h:604 [inline]
 kzalloc include/linux/slab.h:735 [inline]
 ax25_dev_device_up+0x5c/0x540 net/ax25/ax25_dev.c:55
 ax25_device_event+0x504/0x590 net/ax25/af_ax25.c:139
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
 call_netdevice_notifiers_info net/core/dev.c:2049 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
 call_netdevice_notifiers net/core/dev.c:2075 [inline]
 __dev_notify_flags+0x250/0x46c net/core/dev.c:-1
 dev_change_flags+0xc8/0x154 net/core/dev.c:8929
 dev_ifsioc+0x504/0xef4 net/core/dev_ioctl.c:324
 dev_ioctl+0x4d0/0xc94 net/core/dev_ioctl.c:587
 sock_do_ioctl+0x18c/0x240 net/socket.c:1154
 sock_ioctl+0x5c8/0x87c net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Freed by task 4165:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0x128/0x1e8 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0x170/0x40c mm/slub.c:4559
 ax25_dev_put include/net/ax25.h:302 [inline]
 ax25_release+0x564/0x814 net/ax25/af_ax25.c:1062
 __sock_release net/socket.c:649 [inline]
 sock_close+0xb4/0x1f8 net/socket.c:1336
 __fput+0x1c0/0x7f8 fs/file_table.c:311
 ____fput+0x20/0x30 fs/file_table.c:339
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Last potentially related work creation:
 kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
 kasan_record_aux_stack+0xcc/0x114 mm/kasan/generic.c:348
 insert_work+0x64/0x388 kernel/workqueue.c:1366
 __queue_work+0xb30/0x1054 kernel/workqueue.c:1532
 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559
 queue_work include/linux/workqueue.h:512 [inline]
 call_usermodehelper_exec+0x22c/0x478 kernel/umh.c:435
 kobject_uevent_env+0x670/0x888 lib/kobject_uevent.c:633
 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:657
 netdev_queue_add_kobject net/core/net-sysfs.c:1677 [inline]
 netdev_queue_update_kobjects+0x1ac/0x3b4 net/core/net-sysfs.c:1711
 register_queue_kobjects net/core/net-sysfs.c:1772 [inline]
 netdev_register_kobject+0x228/0x2d4 net/core/net-sysfs.c:2018
 register_netdevice+0xd44/0x1304 net/core/dev.c:10397
 __ip_tunnel_create+0x238/0x300 net/ipv4/ip_tunnel.c:267
 ip_tunnel_init_net+0x1f0/0x5a8 net/ipv4/ip_tunnel.c:1098
 ipgre_tap_init_net+0x38/0x48 net/ipv4/ip_gre.c:1706
 ops_init+0x2b0/0x544 net/core/net_namespace.c:138
 __register_pernet_operations net/core/net_namespace.c:1203 [inline]
 register_pernet_operations+0x24c/0x530 net/core/net_namespace.c:1276
 register_pernet_device+0x3c/0x9c net/core/net_namespace.c:1363
 ipgre_init+0x4c/0x1b8 net/ipv4/ip_gre.c:1749
 do_one_initcall+0x228/0x8b0 init/main.c:1302
 do_initcall_level+0x154/0x214 init/main.c:1375
 do_initcalls+0x58/0xac init/main.c:1391
 do_basic_setup+0x8c/0xa0 init/main.c:1410
 kernel_init_freeable+0x404/0x5fc init/main.c:1615
 kernel_init+0x24/0x1d0 init/main.c:1506
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:855

The buggy address belongs to the object at ffff0000d2c34600
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 56 bytes inside of
 256-byte region [ffff0000d2c34600, ffff0000d2c34700)
The buggy address belongs to the page:
page:00000000a550fc50 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112c34
head:00000000a550fc50 order:1 compound_mapcount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d2c34500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d2c34580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000d2c34600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff0000d2c34680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d2c34700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Unable to handle kernel paging request at virtual address b8c00314000015ed
Mem abort info:
  ESR = 0x0000000096000021
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x21: alignment fault
Data abort info:
  ISV = 0, ISS = 0x00000021
  CM = 0, WnR = 0
[b8c00314000015ed] address between user and kernel address ranges
Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4166 Comm: syz.0.18 Tainted: G    B             5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
pc : __refcount_dec include/linux/refcount.h:338 [inline]
pc : refcount_dec include/linux/refcount.h:359 [inline]
pc : dev_put include/linux/netdevice.h:4197 [inline]
pc : ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061
lr : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
lr : __refcount_dec include/linux/refcount.h:338 [inline]
lr : refcount_dec include/linux/refcount.h:359 [inline]
lr : dev_put include/linux/netdevice.h:4197 [inline]
lr : ax25_release+0x4ec/0x814 net/ax25/af_ax25.c:1061
sp : ffff80001f777a00
x29: ffff80001f777a20 x28: dfff800000000000 x27: ffff0000d444d080
x26: ffff0000d80d8828 x25: 0000000000000002 x24: 00000000ffffffff
x23: b8c00314000015ed x22: ffff0000d2c34600 x21: ffff0000e23fb018
x20: ffff0000d444d000 x19: 1fffe0001b01b105 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d6448 x15: 0000000000000002
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800010472234
x8 : ffff0000d396b680 x7 : 0000000000000000 x6 : ffff80000837b9b0
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010472228
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
 arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
 atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
 __refcount_dec include/linux/refcount.h:338 [inline]
 refcount_dec include/linux/refcount.h:359 [inline]
 dev_put include/linux/netdevice.h:4197 [inline]
 ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061
 __sock_release net/socket.c:649 [inline]
 sock_close+0xb4/0x1f8 net/socket.c:1336
 __fput+0x1c0/0x7f8 fs/file_table.c:311
 ____fput+0x20/0x30 fs/file_table.c:339
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503201f 9600200b 52800038 4b1803f8 (b87802f8) 
---[ end trace 6bc00687f33719cb ]---
----------------
Code disassembly (best guess):
   0:	d503201f 	nop
   4:	9600200b 	bl	0xfffffffff8008030
   8:	52800038 	mov	w24, #0x1                   	// #1
   c:	4b1803f8 	neg	w24, w24
* 10:	b87802f8 	ldaddl	w24, w24, [x23] <-- trapping instruction

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
BUG: KASAN: use-after-free in ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495
Read of size 4 at addr ffff0000d2c34638 by task syz.0.18/4166

CPU: 1 PID: 4166 Comm: syz.0.18 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 print_address_description+0x78/0x30c mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xec/0x15c mm/kasan/report.c:451
 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308
 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
 ax25_fillin_cb+0x394/0x568 net/ax25/af_ax25.c:495
 ax25_setsockopt+0x8d0/0xa5c net/ax25/af_ax25.c:690
 __sys_setsockopt+0x2f8/0x4b0 net/socket.c:2203
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 4164:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc mm/kasan/common.c:513 [inline]
 __kasan_kmalloc+0xb0/0xf0 mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 kmem_cache_alloc_trace+0x274/0x3fc mm/slub.c:3247
 kmalloc include/linux/slab.h:604 [inline]
 kzalloc include/linux/slab.h:735 [inline]
 ax25_dev_device_up+0x5c/0x540 net/ax25/ax25_dev.c:55
 ax25_device_event+0x504/0x590 net/ax25/af_ax25.c:139
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
 call_netdevice_notifiers_info net/core/dev.c:2049 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
 call_netdevice_notifiers net/core/dev.c:2075 [inline]
 __dev_notify_flags+0x250/0x46c net/core/dev.c:-1
 dev_change_flags+0xc8/0x154 net/core/dev.c:8929
 dev_ifsioc+0x504/0xef4 net/core/dev_ioctl.c:324
 dev_ioctl+0x4d0/0xc94 net/core/dev_ioctl.c:587
 sock_do_ioctl+0x18c/0x240 net/socket.c:1154
 sock_ioctl+0x5c8/0x87c net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Freed by task 4165:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0x128/0x1e8 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0x170/0x40c mm/slub.c:4559
 ax25_dev_put include/net/ax25.h:302 [inline]
 ax25_release+0x564/0x814 net/ax25/af_ax25.c:1062
 __sock_release net/socket.c:649 [inline]
 sock_close+0xb4/0x1f8 net/socket.c:1336
 __fput+0x1c0/0x7f8 fs/file_table.c:311
 ____fput+0x20/0x30 fs/file_table.c:339
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Last potentially related work creation:
 kasan_save_stack+0x38/0x68 mm/kasan/common.c:38
 kasan_record_aux_stack+0xcc/0x114 mm/kasan/generic.c:348
 insert_work+0x64/0x388 kernel/workqueue.c:1366
 __queue_work+0xb30/0x1054 kernel/workqueue.c:1532
 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559
 queue_work include/linux/workqueue.h:512 [inline]
 call_usermodehelper_exec+0x22c/0x478 kernel/umh.c:435
 kobject_uevent_env+0x670/0x888 lib/kobject_uevent.c:633
 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:657
 netdev_queue_add_kobject net/core/net-sysfs.c:1677 [inline]
 netdev_queue_update_kobjects+0x1ac/0x3b4 net/core/net-sysfs.c:1711
 register_queue_kobjects net/core/net-sysfs.c:1772 [inline]
 netdev_register_kobject+0x228/0x2d4 net/core/net-sysfs.c:2018
 register_netdevice+0xd44/0x1304 net/core/dev.c:10397
 __ip_tunnel_create+0x238/0x300 net/ipv4/ip_tunnel.c:267
 ip_tunnel_init_net+0x1f0/0x5a8 net/ipv4/ip_tunnel.c:1098
 ipgre_tap_init_net+0x38/0x48 net/ipv4/ip_gre.c:1706
 ops_init+0x2b0/0x544 net/core/net_namespace.c:138
 __register_pernet_operations net/core/net_namespace.c:1203 [inline]
 register_pernet_operations+0x24c/0x530 net/core/net_namespace.c:1276
 register_pernet_device+0x3c/0x9c net/core/net_namespace.c:1363
 ipgre_init+0x4c/0x1b8 net/ipv4/ip_gre.c:1749
 do_one_initcall+0x228/0x8b0 init/main.c:1302
 do_initcall_level+0x154/0x214 init/main.c:1375
 do_initcalls+0x58/0xac init/main.c:1391
 do_basic_setup+0x8c/0xa0 init/main.c:1410
 kernel_init_freeable+0x404/0x5fc init/main.c:1615
 kernel_init+0x24/0x1d0 init/main.c:1506
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:855

The buggy address belongs to the object at ffff0000d2c34600
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 56 bytes inside of
 256-byte region [ffff0000d2c34600, ffff0000d2c34700)
The buggy address belongs to the page:
page:00000000a550fc50 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112c34
head:00000000a550fc50 order:1 compound_mapcount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d2c34500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d2c34580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000d2c34600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff0000d2c34680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d2c34700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Unable to handle kernel paging request at virtual address b8c00314000015ed
Mem abort info:
  ESR = 0x0000000096000021
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x21: alignment fault
Data abort info:
  ISV = 0, ISS = 0x00000021
  CM = 0, WnR = 0
[b8c00314000015ed] address between user and kernel address ranges
Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4166 Comm: syz.0.18 Tainted: G    B             5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
pc : __refcount_dec include/linux/refcount.h:338 [inline]
pc : refcount_dec include/linux/refcount.h:359 [inline]
pc : dev_put include/linux/netdevice.h:4197 [inline]
pc : ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061
lr : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
lr : __refcount_dec include/linux/refcount.h:338 [inline]
lr : refcount_dec include/linux/refcount.h:359 [inline]
lr : dev_put include/linux/netdevice.h:4197 [inline]
lr : ax25_release+0x4ec/0x814 net/ax25/af_ax25.c:1061
sp : ffff80001f777a00
x29: ffff80001f777a20 x28: dfff800000000000 x27: ffff0000d444d080
x26: ffff0000d80d8828 x25: 0000000000000002 x24: 00000000ffffffff
x23: b8c00314000015ed x22: ffff0000d2c34600 x21: ffff0000e23fb018
x20: ffff0000d444d000 x19: 1fffe0001b01b105 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d6448 x15: 0000000000000002
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800010472234
x8 : ffff0000d396b680 x7 : 0000000000000000 x6 : ffff80000837b9b0
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010472228
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline]
 arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline]
 atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline]
 __refcount_dec include/linux/refcount.h:338 [inline]
 refcount_dec include/linux/refcount.h:359 [inline]
 dev_put include/linux/netdevice.h:4197 [inline]
 ax25_release+0x4f4/0x814 net/ax25/af_ax25.c:1061
 __sock_release net/socket.c:649 [inline]
 sock_close+0xb4/0x1f8 net/socket.c:1336
 __fput+0x1c0/0x7f8 fs/file_table.c:311
 ____fput+0x20/0x30 fs/file_table.c:339
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503201f 9600200b 52800038 4b1803f8 (b87802f8) 
---[ end trace 6bc00687f33719cb ]---
----------------
Code disassembly (best guess):
   0:	d503201f 	nop
   4:	9600200b 	bl	0xfffffffff8008030
   8:	52800038 	mov	w24, #0x1                   	// #1
   c:	4b1803f8 	neg	w24, w24
* 10:	b87802f8 	ldaddl	w24, w24, [x23] <-- trapping instruction