Extracting prog: 45.007599342s
Minimizing prog: 50m19.000990866s
Simplifying prog options: 0s
Extracting C: 1m52.126597837s
Simplifying C: 13m19.46414446s


extracting reproducer from 30 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)
ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000))

program crashed: KASAN: use-after-free Read in ax25_release
single: successfully extracted reproducer
found reproducer with 24 syscalls
minimizing guilty program
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
r3 = syz_init_net_socket$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$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000000000)={0x0, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, @bpq0, 0x1, 'syz1\x00', @default, 0x1, 0x0, [@null, @default, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x3}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @default]})
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d)

program crashed: KASAN: use-after-free Read in ax25_release
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @default]})

program crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
r3 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r3 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-getsockopt$inet_sctp6_SCTP_RTOINFO-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f00000002c0)={0x0, 0x4, 0x8000, 0x6}, &(0x7f0000000300)=0x10)
r3 = syz_init_net_socket$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 did not crash
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-timer_create-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r3 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-sendto$inet-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x200407bd, &(0x7f0000e68000)={0x2, 0x4e23, @rand_addr=0x64010100}, 0x10)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r3 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-ioctl$TCXONC-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
ioctl$TCXONC(r2, 0x540a, 0x2)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r3 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-openat$ttyS3-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000100), 0x20802, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r2 = syz_init_net_socket$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_release
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r1, &(0x7f0000002000)=""/102400, 0x19000)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r2 = syz_init_net_socket$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_release
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-syz_open_dev$MSR-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-prctl$PR_SCHED_CORE-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-sched_setaffinity-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
sched_setaffinity(0x0, 0x8, &(0x7f0000000200)=0x400000bce)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-sched_setscheduler-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x3, &(0x7f0000000080)=0x20002)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-prlimit64-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x5, 0x8b}, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-socket$kcm-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
socket$kcm(0x10, 0x2, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-setsockopt$inet_sctp6_SCTP_NODELAY-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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 = socket$inet6_sctp(0xa, 0x5, 0x84)
setsockopt$inet_sctp6_SCTP_NODELAY(r0, 0x84, 0x3, 0x0, 0x0)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r1 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_sctp-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
socket$inet6_sctp(0xa, 0x5, 0x84)
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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 crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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 crashed: KASAN: use-after-free Read in ax25_fillin_cb
testing program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0)
r0 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, 0x0, 0x0)
ioctl$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10)
ioctl$sock_netdev_private(r0, 0x8914, 0x0)
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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$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=48.888992061s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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 crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
testing program (duration=48.888992061s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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 crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
testing program (duration=48.888992061s, {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:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE
detailed listing:
executing program 0:
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000140)={0x11, 0x5, &(0x7f0000000000)=ANY=[@ANYBLOB="1801000021000000000000003b81000085"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20000000}, 0x94)
r0 = syz_init_net_socket$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 crashed: KASAN: use-after-free Read in ax25_fillin_cb
validation run: crashed=true
reproducing took 1h11m13.403471328s
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+0x459/0x640 net/ax25/af_ax25.c:495
Read of size 4 at addr ffff888070fe2838 by task syz.0.19/4351

CPU: 1 PID: 4351 Comm: syz.0.19 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
 ax25_fillin_cb+0x459/0x640 net/ax25/af_ax25.c:495
 ax25_setsockopt+0x8a2/0xa40 net/ax25/af_ax25.c:690
 __sys_setsockopt+0x2bf/0x3d0 net/socket.c:2203
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2211
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9f52bcebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff6a11c8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f9f52df5fa0 RCX: 00007f9f52bcebe9
RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000005
RBP: 00007f9f52c51e19 R08: 0000000000000010 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9f52df5fa0 R14: 00007f9f52df5fa0 R15: 0000000000000005
 </TASK>

Allocated by task 4349:
 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+0xb5/0xf0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:604 [inline]
 kzalloc include/linux/slab.h:735 [inline]
 ax25_dev_device_up+0x50/0x580 net/ax25/ax25_dev.c:55
 ax25_device_event+0x483/0x4f0 net/ax25/af_ax25.c:139
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:391
 call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
 call_netdevice_notifiers net/core/dev.c:2075 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1
 dev_change_flags+0xe3/0x1a0 net/core/dev.c:8929
 dev_ifsioc+0x147/0xe70 net/core/dev_ioctl.c:324
 dev_ioctl+0x55f/0xe50 net/core/dev_ioctl.c:587
 sock_do_ioctl+0x222/0x2f0 net/socket.c:1154
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Freed by task 4350:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xea/0x170 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4559
 ax25_dev_put include/net/ax25.h:302 [inline]
 ax25_release+0x661/0x870 net/ax25/af_ax25.c:1062
 __sock_release net/socket.c:649 [inline]
 sock_close+0xd5/0x240 net/socket.c:1336
 __fput+0x234/0x930 fs/file_table.c:311
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff888070fe2800
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 56 bytes inside of
 192-byte region [ffff888070fe2800, ffff888070fe28c0)
The buggy address belongs to the page:
page:ffffea0001c3f880 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x70fe2
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888016841a00
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 4294, ts 60635074617, free_ts 60625977468
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
 __alloc_pages_node include/linux/gfp.h:570 [inline]
 alloc_slab_page mm/slub.c:1777 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xb6/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 __kmalloc_node+0x200/0x3b0 mm/slub.c:4451
 kmalloc_array_node include/linux/slab.h:697 [inline]
 kcalloc_node include/linux/slab.h:702 [inline]
 memcg_alloc_page_obj_cgroups+0x81/0x120 mm/memcontrol.c:2839
 memcg_slab_post_alloc_hook mm/slab.h:313 [inline]
 slab_post_alloc_hook+0xba/0x380 mm/slab.h:526
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
 shmem_alloc_inode+0x16/0x30 mm/shmem.c:3789
 alloc_inode fs/inode.c:261 [inline]
 new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
 new_inode+0x25/0x1c0 fs/inode.c:1030
 shmem_get_inode+0x334/0xa90 mm/shmem.c:2290
 shmem_mknod+0x55/0x1b0 mm/shmem.c:2850
 shmem_mkdir+0x27/0x60 mm/shmem.c:2903
 vfs_mkdir+0x387/0x570 fs/namei.c:4065
 do_mkdirat+0x1d7/0x5a0 fs/namei.c:4090
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x94/0x280 mm/page_alloc.c:3396
 qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 __kmalloc_track_caller+0x125/0x330 mm/slub.c:4925
 memdup_user mm/util.c:173 [inline]
 strndup_user+0x71/0x150 mm/util.c:232
 copy_mount_string fs/namespace.c:3252 [inline]
 __do_sys_mount fs/namespace.c:3550 [inline]
 __se_sys_mount+0x9b/0x3c0 fs/namespace.c:3542
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff888070fe2700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888070fe2780: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff888070fe2800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff888070fe2880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888070fe2900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================

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+0x459/0x640 net/ax25/af_ax25.c:495
Read of size 4 at addr ffff888070fe2838 by task syz.0.19/4351

CPU: 1 PID: 4351 Comm: syz.0.19 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
 print_address_description+0x60/0x2d0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0xdf/0x130 mm/kasan/report.c:451
 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline]
 ax25_fillin_cb+0x459/0x640 net/ax25/af_ax25.c:495
 ax25_setsockopt+0x8a2/0xa40 net/ax25/af_ax25.c:690
 __sys_setsockopt+0x2bf/0x3d0 net/socket.c:2203
 __do_sys_setsockopt net/socket.c:2214 [inline]
 __se_sys_setsockopt net/socket.c:2211 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2211
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9f52bcebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff6a11c8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f9f52df5fa0 RCX: 00007f9f52bcebe9
RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000005
RBP: 00007f9f52c51e19 R08: 0000000000000010 R09: 0000000000000000
R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9f52df5fa0 R14: 00007f9f52df5fa0 R15: 0000000000000005
 </TASK>

Allocated by task 4349:
 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+0xb5/0xf0 mm/kasan/common.c:522
 kmalloc include/linux/slab.h:604 [inline]
 kzalloc include/linux/slab.h:735 [inline]
 ax25_dev_device_up+0x50/0x580 net/ax25/ax25_dev.c:55
 ax25_device_event+0x483/0x4f0 net/ax25/af_ax25.c:139
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xcb/0x160 kernel/notifier.c:391
 call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
 call_netdevice_notifiers net/core/dev.c:2075 [inline]
 __dev_notify_flags+0x178/0x2d0 net/core/dev.c:-1
 dev_change_flags+0xe3/0x1a0 net/core/dev.c:8929
 dev_ifsioc+0x147/0xe70 net/core/dev_ioctl.c:324
 dev_ioctl+0x55f/0xe50 net/core/dev_ioctl.c:587
 sock_do_ioctl+0x222/0x2f0 net/socket.c:1154
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Freed by task 4350:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xea/0x170 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4559
 ax25_dev_put include/net/ax25.h:302 [inline]
 ax25_release+0x661/0x870 net/ax25/af_ax25.c:1062
 __sock_release net/socket.c:649 [inline]
 sock_close+0xd5/0x240 net/socket.c:1336
 __fput+0x234/0x930 fs/file_table.c:311
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff888070fe2800
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 56 bytes inside of
 192-byte region [ffff888070fe2800, ffff888070fe28c0)
The buggy address belongs to the page:
page:ffffea0001c3f880 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x70fe2
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888016841a00
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 4294, ts 60635074617, free_ts 60625977468
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
 __alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
 __alloc_pages_node include/linux/gfp.h:570 [inline]
 alloc_slab_page mm/slub.c:1777 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xb6/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 __kmalloc_node+0x200/0x3b0 mm/slub.c:4451
 kmalloc_array_node include/linux/slab.h:697 [inline]
 kcalloc_node include/linux/slab.h:702 [inline]
 memcg_alloc_page_obj_cgroups+0x81/0x120 mm/memcontrol.c:2839
 memcg_slab_post_alloc_hook mm/slab.h:313 [inline]
 slab_post_alloc_hook+0xba/0x380 mm/slab.h:526
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x100/0x290 mm/slub.c:3233
 shmem_alloc_inode+0x16/0x30 mm/shmem.c:3789
 alloc_inode fs/inode.c:261 [inline]
 new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
 new_inode+0x25/0x1c0 fs/inode.c:1030
 shmem_get_inode+0x334/0xa90 mm/shmem.c:2290
 shmem_mknod+0x55/0x1b0 mm/shmem.c:2850
 shmem_mkdir+0x27/0x60 mm/shmem.c:2903
 vfs_mkdir+0x387/0x570 fs/namei.c:4065
 do_mkdirat+0x1d7/0x5a0 fs/namei.c:4090
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x94/0x280 mm/page_alloc.c:3396
 qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 __kmalloc_track_caller+0x125/0x330 mm/slub.c:4925
 memdup_user mm/util.c:173 [inline]
 strndup_user+0x71/0x150 mm/util.c:232
 copy_mount_string fs/namespace.c:3252 [inline]
 __do_sys_mount fs/namespace.c:3550 [inline]
 __se_sys_mount+0x9b/0x3c0 fs/namespace.c:3542
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff888070fe2700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888070fe2780: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff888070fe2800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff888070fe2880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888070fe2900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================