Extracting prog: 58.792098624s Minimizing prog: 40m6.537511079s Simplifying prog options: 0s Extracting C: 32.802654501s Simplifying C: 21m45.335652741s extracting reproducer from 29 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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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$ax25_SO_BINDTODEVICE-bind$inet6-sendmsg$MPTCP_PM_CMD_ADD_ADDR-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) r5 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r7 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r7, 0x8914, &(0x7f0000000000)) r8 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r8, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x8f}, 0x19) sendmsg$MPTCP_PM_CMD_ADD_ADDR(r1, &(0x7f0000000440)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x6c, 0x0, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@MPTCP_PM_ATTR_ADDR_REMOTE={0x38, 0x6, 0x0, 0x1, [@MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x8}, @MPTCP_PM_ADDR_ATTR_ADDR6={0x14, 0x4, @private2}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x2}, @MPTCP_PM_ADDR_ATTR_ID={0x5, 0x2, 0x6}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0xd}]}, @MPTCP_PM_ATTR_TOKEN={0x8, 0x4, 0x9}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x6}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x1}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x6}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4}, 0x4c044) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r5, 0x8914, &(0x7f0000000000)) program crashed: KASAN: use-after-free Read in ax25_release single: successfully extracted reproducer found reproducer with 22 syscalls minimizing guilty program testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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$ax25_SO_BINDTODEVICE-bind$inet6-sendmsg$MPTCP_PM_CMD_ADD_ADDR-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x8f}, 0x19) sendmsg$MPTCP_PM_CMD_ADD_ADDR(r1, &(0x7f0000000440)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x6c, 0x0, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@MPTCP_PM_ATTR_ADDR_REMOTE={0x38, 0x6, 0x0, 0x1, [@MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x8}, @MPTCP_PM_ADDR_ATTR_ADDR6={0x14, 0x4, @private2}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x2}, @MPTCP_PM_ADDR_ATTR_ID={0x5, 0x2, 0x6}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0xd}]}, @MPTCP_PM_ATTR_TOKEN={0x8, 0x4, 0x9}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x6}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x1}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x6}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4}, 0x4c044) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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$ax25_SO_BINDTODEVICE-bind$inet6-sendmsg$MPTCP_PM_CMD_ADD_ADDR detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x8f}, 0x19) sendmsg$MPTCP_PM_CMD_ADD_ADDR(r1, &(0x7f0000000440)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000300)={0x6c, 0x0, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@MPTCP_PM_ATTR_ADDR_REMOTE={0x38, 0x6, 0x0, 0x1, [@MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x8}, @MPTCP_PM_ADDR_ATTR_ADDR6={0x14, 0x4, @private2}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0x2}, @MPTCP_PM_ADDR_ATTR_ID={0x5, 0x2, 0x6}, @MPTCP_PM_ADDR_ATTR_FLAGS={0x8, 0x6, 0xd}]}, @MPTCP_PM_ATTR_TOKEN={0x8, 0x4, 0x9}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x6}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x1}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x6}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4}, 0x4c044) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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$ax25_SO_BINDTODEVICE-bind$inet6 detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x8f}, 0x19) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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 detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) syz_init_net_socket$ax25(0x3, 0x2, 0xcc) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$sock_SIOCGIFINDEX-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 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) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$bt_sco-socketpair$unix-ioctl$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(0xffffffffffffffff, 0x8914, &(0x7f0000000000)) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$bt_sco-socketpair$unix-syz_init_net_socket$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$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) r5 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r5, 0x8914, &(0x7f0000000000)) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-syz_init_net_socket$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r5 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r5, 0x8914, &(0x7f0000000000)) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program did not crash testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-socket$inet_udp-socketpair$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socket$inet_udp(0x2, 0x2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-sendmsg$inet-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$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) sendmsg$inet(r4, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000100)=[@ip_retopts={{0x12, 0x0, 0x7, {[@cipso={0x86, 0x14, 0xfffffffffffffffe, [{0x2, 0xe, "722be30cfb360b015d590dbe"}]}]}}}], 0x28}, 0x8000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-sendto$inet6-socketpair$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) r4 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r4, 0x0, 0x0, 0x20000000, &(0x7f0000000540)={0xa, 0x4e20, 0x2, @loopback, 0x5}, 0x1c) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r6 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r6, 0x8914, &(0x7f0000000000)) r7 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r7, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socket$inet6_tcp-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$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) socket$inet6_tcp(0xa, 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r5 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r5, 0x8914, &(0x7f0000000000)) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-recvmmsg-socketpair$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 = socket$kcm(0x10, 0x2, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r2, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r3}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) recvmmsg(r0, &(0x7f0000000980)=[{{0x0, 0x0, &(0x7f0000000bc0)=[{0x0}, {&(0x7f0000001340)=""/4094, 0xffe}, {&(0x7f0000000100)=""/122, 0x7a}, {&(0x7f0000000200)=""/144, 0x90}], 0x4}, 0x1}, {{0x0, 0x0, 0x0}}], 0x2, 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r5 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0x10) ioctl$sock_netdev_private(r5, 0x8914, &(0x7f0000000000)) r6 = syz_init_net_socket$ax25(0x3, 0x2, 0xcc) setsockopt$ax25_SO_BINDTODEVICE(r6, 0x101, 0x19, &(0x7f00000001c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-sendmsg$NL80211_CMD_AUTHENTICATE-socketpair$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: socket$kcm(0x10, 0x2, 0x10) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000080)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_AUTHENTICATE(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f0000000500)={0x28, r1, 0x1, 0x70bd2b, 0x25dfdbfe, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @from_mac=@broadcast}]}, 0x28}, 0x1, 0x0, 0x0, 0x8000}, 0x40) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'batadv_slave_0\x00'}) r4 = syz_init_net_socket$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) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-ioctl$sock_SIOCGIFINDEX_80211-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$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socket$kcm(0x10, 0x2, 0x10) r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000080)={'wlan1\x00'}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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$kcm-socket$nl_generic-syz_genetlink_get_family_id$nl80211-socketpair$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: socket$kcm(0x10, 0x2, 0x10) socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(&(0x7f0000000380), 0xffffffffffffffff) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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$kcm-socket$nl_generic-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$ax25_SO_BINDTODEVICE detailed listing: executing program 0: socket$kcm(0x10, 0x2, 0x10) socket$nl_generic(0x10, 0x3, 0x10) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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$kcm-socketpair$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: socket$kcm(0x10, 0x2, 0x10) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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, 0x2, 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=45.992259637s, {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}}): 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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}}): 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb simplifying C reproducer testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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}}): 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$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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}}): 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$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=45.992259637s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$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=45.992259637s, {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 CallComments:true 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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 CallComments:true 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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=45.992259637s, {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 CallComments:true 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, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 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 1h8m42.095299328s 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 ffff88802270b538 by task syz.0.19/4318 CPU: 0 PID: 4318 Comm: syz.0.19 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: 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: 0033:0x7f4480638fc9 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:00007fff1e43c428 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f448088ffa0 RCX: 00007f4480638fc9 RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000007 RBP: 00007f44806bbf91 R08: 0000000000000010 R09: 0000000000000000 R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f448088ffa0 R14: 00007f448088ffa0 R15: 0000000000000005 Allocated by task 4316: 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:607 [inline] kzalloc include/linux/slab.h:738 [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 4317: 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:1710 [inline] slab_free_freelist_hook+0xea/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 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+0xee/0x180 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 ffff88802270b500 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 56 bytes inside of 192-byte region [ffff88802270b500, ffff88802270b5c0) The buggy address belongs to the page: page:ffffea000089c2c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2270b 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 4297, ts 84383747246, free_ts 84168966272 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:5487 __alloc_pages_node include/linux/gfp.h:570 [inline] alloc_slab_page mm/slub.c:1782 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xb6/0x4b0 mm/slub.c:1980 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] __kmalloc_node+0x200/0x3b0 mm/slub.c:4456 kmalloc_array_node include/linux/slab.h:700 [inline] kcalloc_node include/linux/slab.h:705 [inline] memcg_alloc_page_obj_cgroups+0x81/0x120 mm/memcontrol.c:2839 account_slab_page mm/slab.h:424 [inline] allocate_slab mm/slub.c:1933 [inline] new_slab+0x100/0x4b0 mm/slub.c:1980 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] slab_alloc mm/slub.c:3233 [inline] kmem_cache_alloc+0x195/0x290 mm/slub.c:3238 __d_alloc+0x2a/0x6f0 fs/dcache.c:1749 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1878 alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:256 sock_alloc_file+0xb3/0x240 net/socket.c:462 sock_map_fd net/socket.c:486 [inline] __sys_socket+0x11d/0x170 net/socket.c:1588 __do_sys_socket net/socket.c:1593 [inline] __se_sys_socket net/socket.c:1591 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1591 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 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:3225 [inline] __kmalloc_node_track_caller+0x156/0x3a0 mm/slub.c:4963 kmalloc_reserve net/core/skbuff.c:356 [inline] __alloc_skb+0x22c/0x750 net/core/skbuff.c:427 alloc_skb include/linux/skbuff.h:1162 [inline] nlmsg_new include/net/netlink.h:953 [inline] rtmsg_ifa+0xf9/0x1f0 net/ipv4/devinet.c:1926 __inet_del_ifa+0x865/0x1020 net/ipv4/devinet.c:441 inet_del_ifa net/ipv4/devinet.c:479 [inline] inetdev_destroy net/ipv4/devinet.c:320 [inline] inetdev_event+0x5d3/0x1360 net/ipv4/devinet.c:1611 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] unregister_netdevice_many+0xf57/0x18f0 net/core/dev.c:11134 default_device_exit_batch+0x336/0x390 net/core/dev.c:11667 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x77b/0xb80 net/core/net_namespace.c:635 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 Memory state around the buggy address: ffff88802270b400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802270b480: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88802270b500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88802270b580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff88802270b600: 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 ffff88802270b538 by task syz.0.19/4318 CPU: 0 PID: 4318 Comm: syz.0.19 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Call Trace: 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: 0033:0x7f4480638fc9 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:00007fff1e43c428 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f448088ffa0 RCX: 00007f4480638fc9 RDX: 0000000000000019 RSI: 0000000000000101 RDI: 0000000000000007 RBP: 00007f44806bbf91 R08: 0000000000000010 R09: 0000000000000000 R10: 00002000000001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f448088ffa0 R14: 00007f448088ffa0 R15: 0000000000000005 Allocated by task 4316: 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:607 [inline] kzalloc include/linux/slab.h:738 [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 4317: 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:1710 [inline] slab_free_freelist_hook+0xea/0x170 mm/slub.c:1736 slab_free mm/slub.c:3504 [inline] kfree+0xef/0x2a0 mm/slub.c:4564 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+0xee/0x180 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 ffff88802270b500 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 56 bytes inside of 192-byte region [ffff88802270b500, ffff88802270b5c0) The buggy address belongs to the page: page:ffffea000089c2c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2270b 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 4297, ts 84383747246, free_ts 84168966272 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:5487 __alloc_pages_node include/linux/gfp.h:570 [inline] alloc_slab_page mm/slub.c:1782 [inline] allocate_slab mm/slub.c:1917 [inline] new_slab+0xb6/0x4b0 mm/slub.c:1980 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] __kmalloc_node+0x200/0x3b0 mm/slub.c:4456 kmalloc_array_node include/linux/slab.h:700 [inline] kcalloc_node include/linux/slab.h:705 [inline] memcg_alloc_page_obj_cgroups+0x81/0x120 mm/memcontrol.c:2839 account_slab_page mm/slab.h:424 [inline] allocate_slab mm/slub.c:1933 [inline] new_slab+0x100/0x4b0 mm/slub.c:1980 ___slab_alloc+0x81e/0xdf0 mm/slub.c:3013 __slab_alloc mm/slub.c:3100 [inline] slab_alloc_node mm/slub.c:3191 [inline] slab_alloc mm/slub.c:3233 [inline] kmem_cache_alloc+0x195/0x290 mm/slub.c:3238 __d_alloc+0x2a/0x6f0 fs/dcache.c:1749 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1878 alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:256 sock_alloc_file+0xb3/0x240 net/socket.c:462 sock_map_fd net/socket.c:486 [inline] __sys_socket+0x11d/0x170 net/socket.c:1588 __do_sys_socket net/socket.c:1593 [inline] __se_sys_socket net/socket.c:1591 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1591 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 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:3225 [inline] __kmalloc_node_track_caller+0x156/0x3a0 mm/slub.c:4963 kmalloc_reserve net/core/skbuff.c:356 [inline] __alloc_skb+0x22c/0x750 net/core/skbuff.c:427 alloc_skb include/linux/skbuff.h:1162 [inline] nlmsg_new include/net/netlink.h:953 [inline] rtmsg_ifa+0xf9/0x1f0 net/ipv4/devinet.c:1926 __inet_del_ifa+0x865/0x1020 net/ipv4/devinet.c:441 inet_del_ifa net/ipv4/devinet.c:479 [inline] inetdev_destroy net/ipv4/devinet.c:320 [inline] inetdev_event+0x5d3/0x1360 net/ipv4/devinet.c:1611 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] unregister_netdevice_many+0xf57/0x18f0 net/core/dev.c:11134 default_device_exit_batch+0x336/0x390 net/core/dev.c:11667 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x77b/0xb80 net/core/net_namespace.c:635 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 Memory state around the buggy address: ffff88802270b400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802270b480: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88802270b500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88802270b580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff88802270b600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================