Extracting prog: 2m7.063410464s Minimizing prog: 46m8.087106162s Simplifying prog options: 0s Extracting C: 51.655680107s Simplifying C: 10m34.130553075s 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq-close_range-bpf$MAP_CREATE_CONST_STR-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-io_submit detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) r2 = eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r3 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r4 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r4, 0x8914, &(0x7f0000000000)) r5 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r5, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r6 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r6, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) close_range(r3, 0xffffffffffffffff, 0x0) bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000340)=ANY=[], 0x48) r7 = bpf$PROG_LOAD(0x5, &(0x7f0000001180)={0x6, 0x10, 0x0, &(0x7f0000000000)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @xdp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000001bc0)={r7, 0x0, 0x136, 0x0, &(0x7f0000001cc0)="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", 0x0, 0x0, 0x0, 0x47, 0x0, &(0x7f0000001ac0)="9c01bd6f9a6028c80d7364240fd78867d9d62eca43c565f2c5ac65dd4a0fadceb6c65dcb07f2421e69087e0f17b4eb709e4805f2722709c46bef17c4cb9aed9fb1c342179ea349", &(0x7f0000001a40), 0x1, 0x0, 0x13}, 0x50) io_submit(0x0, 0x1, &(0x7f0000002900)=[&(0x7f0000000200)={0x0, 0x0, 0x0, 0x7, 0x3511, r2, 0x0, 0x0, 0x0, 0x0, 0x1, r2}]) program crashed: KASAN: use-after-free Write in ax25_dev_device_down single: successfully extracted reproducer found reproducer with 19 syscalls minimizing guilty program testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq-close_range-bpf$MAP_CREATE_CONST_STR-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000)) r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r5 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r5, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) close_range(r2, 0xffffffffffffffff, 0x0) bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000340)=ANY=[], 0x48) r6 = bpf$PROG_LOAD(0x5, &(0x7f0000001180)={0x6, 0x10, 0x0, &(0x7f0000000000)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @xdp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000001bc0)={r6, 0x0, 0x136, 0x0, &(0x7f0000001cc0)="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", 0x0, 0x0, 0x0, 0x47, 0x0, &(0x7f0000001ac0)="9c01bd6f9a6028c80d7364240fd78867d9d62eca43c565f2c5ac65dd4a0fadceb6c65dcb07f2421e69087e0f17b4eb709e4805f2722709c46bef17c4cb9aed9fb1c342179ea349", &(0x7f0000001a40), 0x1, 0x0, 0x13}, 0x50) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq-close_range-bpf$MAP_CREATE_CONST_STR-bpf$PROG_LOAD detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000)) r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r5 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r5, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) close_range(r2, 0xffffffffffffffff, 0x0) bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000340)=ANY=[], 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000001180)={0x6, 0x10, 0x0, &(0x7f0000000000)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @xdp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq-close_range-bpf$MAP_CREATE_CONST_STR detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000)) r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r5 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r5, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) close_range(r2, 0xffffffffffffffff, 0x0) bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000340)=ANY=[], 0x48) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq-close_range detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r3 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r3, 0x8914, &(0x7f0000000000)) r4 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r4, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r5 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r5, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) close_range(r2, 0xffffffffffffffff, 0x0) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25-ioctl$sock_ifreq detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) r4 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$sock_ifreq(r4, 0x8990, &(0x7f0000000180)={'bond0\x00', @ifru_names='rose0\x00'}) program crashed: KASAN: use-after-free Read in ax25_release testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE-syz_init_net_socket$x25 detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) syz_init_net_socket$x25(0x9, 0x5, 0x0) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-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 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) syz_init_net_socket$ax25(0x3, 0x2, 0xf0) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-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 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-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 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-socketpair$unix-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) socketpair$unix(0x1, 0x5, 0x0, 0x0) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(0xffffffffffffffff, 0x8914, &(0x7f0000000000)) r2 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r2, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-openat$sndtimer-syz_init_net_socket$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 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-eventfd2-syz_init_net_socket$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 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) eventfd2(0x0, 0x0) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x29, &(0x7f0000000000)=ANY=[@ANYBLOB="180800000000000000000000000000001811", @ANYRES32=r1, @ANYBLOB="0000000000000000b702000014000000b7030000000000008500000005000000bf0900000000000055090100000000009500000000000000b7020000000000007b9af8ff00000000b6090200000000007baaf0ff00000000bf8600000000000007080000f8ffffffbfa4000000000000b43805dff0ffffffb50200000a95eb53182800002d4f9c07aef268e339e948ec3096525a43ab907ee79bd5864f4494528f68b6833406db11773c5beca17ada0a97", @ANYRES32=r0, @ANYBLOB="0000000000000000b7050000080000001500000076000000b7020000000000007b88f8ff00000000b7080000000000007b8af0ff00000000bfa100000000000007010000f8ffffffbfa400000000000007040000f0ffffffb70200000800000018", @ANYRES32=r0, @ANYBLOB="0000000000000000b70500000800000085000000a5000000bf9100000000000056080000000000008500000000000000b7000000000000009500000000000000"], &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x9, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x94) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r2 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r2, 0x8914, &(0x7f0000000000)) r3 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r3, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$MAP_CREATE_RINGBUF-bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE_CONST_STR-bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, 0x0, 0x0) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, 0x0, &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB], &(0x7f0000000600)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, 0x0, 0x0) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, 0x0) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, &(0x7f00000000c0)=@bpq0, 0x10) program did not crash testing program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE detailed listing: executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000640)={0xd, 0x4, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000000000000000000000061121c0000000000"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0xb, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, @void, @value}, 0x94) r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) setsockopt$ax25_SO_BINDTODEVICE(0xffffffffffffffff, 0x101, 0x19, &(0x7f0000000000)=@bpq0, 0xfffffffffffffe1d) ioctl$sock_netdev_private(r0, 0x8914, &(0x7f0000000000)) r1 = syz_init_net_socket$ax25(0x3, 0x2, 0xf0) setsockopt$ax25_SO_BINDTODEVICE(r1, 0x101, 0x19, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=53.107245445s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb simplifying C reproducer testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program did not crash testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb testing compiled C program (duration=53.107245445s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$PROG_LOAD-syz_init_net_socket$bt_sco-setsockopt$ax25_SO_BINDTODEVICE-ioctl$sock_netdev_private-syz_init_net_socket$ax25-setsockopt$ax25_SO_BINDTODEVICE program crashed: KASAN: use-after-free Read in ax25_fillin_cb reproducing took 59m40.936776307s 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+0x39c/0x588 net/ax25/af_ax25.c:495 Read of size 4 at addr ffff0000c0873638 by task syz-executor904/4023 CPU: 1 PID: 4023 Comm: syz-executor904 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] ax25_fillin_cb+0x39c/0x588 net/ax25/af_ax25.c:495 ax25_setsockopt+0x980/0xcdc net/ax25/af_ax25.c:690 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 4021: 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+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] kmem_cache_alloc_trace+0x27c/0x47c mm/slub.c:3247 kmalloc include/linux/slab.h:591 [inline] kzalloc include/linux/slab.h:721 [inline] ax25_dev_device_up+0x5c/0x548 net/ax25/ax25_dev.c:55 ax25_device_event+0x500/0x58c net/ax25/af_ax25.c:139 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 __dev_notify_flags+0x2ac/0x534 dev_change_flags+0xc8/0x154 net/core/dev.c:8897 dev_ifsioc+0x140/0xfe4 net/core/dev_ioctl.c:324 dev_ioctl+0x4e0/0xd3c net/core/dev_ioctl.c:587 sock_do_ioctl+0x1dc/0x2dc net/socket.c:1154 sock_ioctl+0x4f0/0x8ac net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Freed by task 4022: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x178/0x410 mm/slub.c:4559 ax25_dev_put include/net/ax25.h:302 [inline] ax25_release+0x57c/0x82c net/ax25/af_ax25.c:1062 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x1fc net/socket.c:1336 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1005 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000c0873600 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 56 bytes inside of 256-byte region [ffff0000c0873600, ffff0000c0873700) The buggy address belongs to the page: page:0000000076ee44e2 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100872 head:0000000076ee44e2 order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c0873500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c0873580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000c0873600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000c0873680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000c0873700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Unable to handle kernel paging request at virtual address a38002560000155e Mem abort info: ESR = 0x0000000096000021 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x21: alignment fault Data abort info: ISV = 0, ISS = 0x00000021 CM = 0, WnR = 0 [a38002560000155e] address between user and kernel address ranges Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4023 Comm: syz-executor904 Tainted: G B 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] pc : __refcount_dec include/linux/refcount.h:338 [inline] pc : refcount_dec include/linux/refcount.h:359 [inline] pc : dev_put include/linux/netdevice.h:4189 [inline] pc : ax25_release+0x50c/0x82c net/ax25/af_ax25.c:1061 lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] lr : __refcount_dec include/linux/refcount.h:338 [inline] lr : refcount_dec include/linux/refcount.h:359 [inline] lr : dev_put include/linux/netdevice.h:4189 [inline] lr : ax25_release+0x504/0x82c net/ax25/af_ax25.c:1061 sp : ffff80001fbd79f0 x29: ffff80001fbd7a10 x28: dfff800000000000 x27: ffff0000ca370080 x26: ffff0000cb815028 x25: 0000000000000002 x24: 00000000ffffffff x23: a38002560000155e x22: ffff0000c0873600 x21: ffff0000ddea9818 x20: ffff0000ca370000 x19: 1fffe00019702a05 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000084c44a8 x15: 0000000000000002 x14: 0000000011b4a01c x13: 00000000373d76dd x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ccaab680 x8 : ffff800010dd0198 x7 : 0000000000000000 x6 : ffff8000083b965c x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010dd018c x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] __refcount_dec include/linux/refcount.h:338 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4189 [inline] ax25_release+0x50c/0x82c net/ax25/af_ax25.c:1061 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x1fc net/socket.c:1336 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1005 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503201f 97c51913 52800038 4b1803f8 (b87802f8) ---[ end trace 0cc7671cde120c34 ]--- ---------------- Code disassembly (best guess): 0: d503201f nop 4: 97c51913 bl 0xffffffffff146450 8: 52800038 mov w24, #0x1 // #1 c: 4b1803f8 neg w24, w24 * 10: b87802f8 ldaddl w24, w24, [x23] <-- trapping instruction final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] BUG: KASAN: use-after-free in ax25_fillin_cb+0x39c/0x588 net/ax25/af_ax25.c:495 Read of size 4 at addr ffff0000c0873638 by task syz-executor904/4023 CPU: 1 PID: 4023 Comm: syz-executor904 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 __asan_report_load4_noabort+0x44/0x50 mm/kasan/report_generic.c:308 ax25_fillin_cb_from_dev net/ax25/af_ax25.c:468 [inline] ax25_fillin_cb+0x39c/0x588 net/ax25/af_ax25.c:495 ax25_setsockopt+0x980/0xcdc net/ax25/af_ax25.c:690 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 4021: 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+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] kmem_cache_alloc_trace+0x27c/0x47c mm/slub.c:3247 kmalloc include/linux/slab.h:591 [inline] kzalloc include/linux/slab.h:721 [inline] ax25_dev_device_up+0x5c/0x548 net/ax25/ax25_dev.c:55 ax25_device_event+0x500/0x58c net/ax25/af_ax25.c:139 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 __dev_notify_flags+0x2ac/0x534 dev_change_flags+0xc8/0x154 net/core/dev.c:8897 dev_ifsioc+0x140/0xfe4 net/core/dev_ioctl.c:324 dev_ioctl+0x4e0/0xd3c net/core/dev_ioctl.c:587 sock_do_ioctl+0x1dc/0x2dc net/socket.c:1154 sock_ioctl+0x4f0/0x8ac net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Freed by task 4022: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x178/0x410 mm/slub.c:4559 ax25_dev_put include/net/ax25.h:302 [inline] ax25_release+0x57c/0x82c net/ax25/af_ax25.c:1062 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x1fc net/socket.c:1336 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1005 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000c0873600 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 56 bytes inside of 256-byte region [ffff0000c0873600, ffff0000c0873700) The buggy address belongs to the page: page:0000000076ee44e2 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100872 head:0000000076ee44e2 order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c0873500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c0873580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000c0873600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000c0873680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000c0873700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Unable to handle kernel paging request at virtual address a38002560000155e Mem abort info: ESR = 0x0000000096000021 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x21: alignment fault Data abort info: ISV = 0, ISS = 0x00000021 CM = 0, WnR = 0 [a38002560000155e] address between user and kernel address ranges Internal error: Oops: 0000000096000021 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4023 Comm: syz-executor904 Tainted: G B 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] pc : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] pc : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] pc : __refcount_dec include/linux/refcount.h:338 [inline] pc : refcount_dec include/linux/refcount.h:359 [inline] pc : dev_put include/linux/netdevice.h:4189 [inline] pc : ax25_release+0x50c/0x82c net/ax25/af_ax25.c:1061 lr : arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] lr : atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] lr : __refcount_dec include/linux/refcount.h:338 [inline] lr : refcount_dec include/linux/refcount.h:359 [inline] lr : dev_put include/linux/netdevice.h:4189 [inline] lr : ax25_release+0x504/0x82c net/ax25/af_ax25.c:1061 sp : ffff80001fbd79f0 x29: ffff80001fbd7a10 x28: dfff800000000000 x27: ffff0000ca370080 x26: ffff0000cb815028 x25: 0000000000000002 x24: 00000000ffffffff x23: a38002560000155e x22: ffff0000c0873600 x21: ffff0000ddea9818 x20: ffff0000ca370000 x19: 1fffe00019702a05 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000084c44a8 x15: 0000000000000002 x14: 0000000011b4a01c x13: 00000000373d76dd x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000ccaab680 x8 : ffff800010dd0198 x7 : 0000000000000000 x6 : ffff8000083b965c x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800010dd018c x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: __lse_atomic_fetch_sub_release arch/arm64/include/asm/atomic_lse.h:161 [inline] arch_atomic_fetch_sub_release arch/arm64/include/asm/atomic.h:51 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:168 [inline] __refcount_dec include/linux/refcount.h:338 [inline] refcount_dec include/linux/refcount.h:359 [inline] dev_put include/linux/netdevice.h:4189 [inline] ax25_release+0x50c/0x82c net/ax25/af_ax25.c:1061 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x1fc net/socket.c:1336 __fput+0x1c4/0x800 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x670/0x20bc kernel/exit.c:874 do_group_exit+0x110/0x268 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1005 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: d503201f 97c51913 52800038 4b1803f8 (b87802f8) ---[ end trace 0cc7671cde120c34 ]--- ---------------- Code disassembly (best guess): 0: d503201f nop 4: 97c51913 bl 0xffffffffff146450 8: 52800038 mov w24, #0x1 // #1 c: 4b1803f8 neg w24, w24 * 10: b87802f8 ldaddl w24, w24, [x23] <-- trapping instruction