./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2421410266 <...> Warning: Permanently added '10.128.1.147' (ECDSA) to the list of known hosts. execve("./syz-executor2421410266", ["./syz-executor2421410266"], 0x7fffca16f4a0 /* 10 vars */) = 0 brk(NULL) = 0x555556c9e000 brk(0x555556c9ec40) = 0x555556c9ec40 arch_prctl(ARCH_SET_FS, 0x555556c9e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2421410266", 4096) = 28 brk(0x555556cbfc40) = 0x555556cbfc40 brk(0x555556cc0000) = 0x555556cc0000 mprotect(0x7f97f8e6e000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 socketpair(AF_UNIX, SOCK_STREAM, 0, [3, 4]) = 0 setsockopt(4, SOL_SOCKET, 0x4c /* SO_??? */, "\x01\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x20\x00\x00\x00\x00", 16) = 0 syzkaller login: [ 76.731556][ T5009] ------------[ cut here ]------------ [ 76.737209][ T5009] WARNING: CPU: 0 PID: 5009 at include/net/scm.h:138 scm_recv.constprop.0+0x755/0x850 [ 76.746832][ T5009] Modules linked in: [ 76.750740][ T5009] CPU: 0 PID: 5009 Comm: syz-executor242 Not tainted 6.4.0-rc7-syzkaller-01944-g3674fbf0451d #0 [ 76.761227][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 76.771337][ T5009] RIP: 0010:scm_recv.constprop.0+0x755/0x850 [ 76.777422][ T5009] Code: 0e f9 e9 55 fd ff ff e8 29 f5 0e f9 e9 7f fd ff ff e8 1f f5 0e f9 e9 39 fb ff ff e8 15 f5 0e f9 e9 02 fd ff ff e8 3b e3 bb f8 <0f> 0b e9 f9 fb ff ff e8 1f f5 0e f9 e9 2d f9 ff ff e8 15 f5 0e f9 [ 76.797106][ T5009] RSP: 0018:ffffc900039df660 EFLAGS: 00010293 [ 76.803247][ T5009] RAX: 0000000000000000 RBX: ffff888078229800 RCX: 0000000000000000 [ 76.811225][ T5009] RDX: ffff888027243b80 RSI: ffffffff88c86625 RDI: 0000000000000007 [ 76.819279][ T5009] RBP: ffffc900039df818 R08: 0000000000000007 R09: 0000000000000013 [ 76.827310][ T5009] R10: 00000000000000e1 R11: 0000000000000001 R12: ffffc900039dfdb0 [ 76.835378][ T5009] R13: 0000000000000000 R14: ffff888078229808 R15: 1ffff9200073becc [ 76.843419][ T5009] FS: 0000555556c9e300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 76.852375][ T5009] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.859052][ T5009] CR2: 0000000020005b88 CR3: 00000000748b6000 CR4: 00000000003506f0 [ 76.867121][ T5009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.875169][ T5009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.883199][ T5009] Call Trace: [ 76.886491][ T5009] [ 76.889430][ T5009] ? __warn+0xe6/0x390 [ 76.893602][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 76.899016][ T5009] ? report_bug+0x2da/0x500 [ 76.903595][ T5009] ? handle_bug+0x3c/0x70 [ 76.907963][ T5009] ? exc_invalid_op+0x18/0x50 [ 76.912674][ T5009] ? asm_exc_invalid_op+0x1a/0x20 [ 76.917785][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 76.923258][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 76.928678][ T5009] ? bpf_iter_init_unix+0x70/0x70 [ 76.933766][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 76.938838][ T5009] ? spin_bug+0x1c0/0x1c0 [ 76.943288][ T5009] unix_stream_read_generic+0x604/0x2030 [ 76.948980][ T5009] ? unix_dgram_poll+0x770/0x770 [ 76.954063][ T5009] unix_stream_recvmsg+0x18b/0x1c0 [ 76.959247][ T5009] ? unix_stream_splice_read+0x1f0/0x1f0 [ 76.964998][ T5009] ? unix_copy_addr+0x100/0x100 [ 76.969905][ T5009] ? bpf_lsm_socket_recvmsg+0x9/0x10 [ 76.975261][ T5009] ? security_socket_recvmsg+0x93/0xc0 [ 76.980761][ T5009] ? unix_stream_splice_read+0x1f0/0x1f0 [ 76.986476][ T5009] sock_recvmsg+0xe2/0x160 [ 76.990934][ T5009] ____sys_recvmsg+0x210/0x5a0 [ 76.995782][ T5009] ? kernel_recvmsg+0x80/0x80 [ 77.000494][ T5009] ? copy_msghdr_from_user+0xfc/0x150 [ 77.005944][ T5009] ? __copy_msghdr+0x4b0/0x4b0 [ 77.010764][ T5009] ___sys_recvmsg+0xf2/0x180 [ 77.015436][ T5009] ? copy_msghdr_from_user+0x150/0x150 [ 77.020941][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.027001][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.033152][ T5009] ? __fget_light+0x20a/0x270 [ 77.037857][ T5009] do_recvmmsg+0x25e/0x6f0 [ 77.042295][ T5009] ? ___sys_recvmsg+0x180/0x180 [ 77.047246][ T5009] ? spin_bug+0x1c0/0x1c0 [ 77.051622][ T5009] ? _raw_spin_lock_irq+0x45/0x50 [ 77.056698][ T5009] ? recalc_sigpending_tsk+0x18b/0x1d0 [ 77.062213][ T5009] ? ptrace_notify+0xfe/0x140 [ 77.066965][ T5009] ? lock_downgrade+0x690/0x690 [ 77.071860][ T5009] __x64_sys_recvmmsg+0x20f/0x260 [ 77.076967][ T5009] ? _raw_spin_unlock_irq+0x23/0x50 [ 77.082208][ T5009] ? __do_sys_socketcall+0x650/0x650 [ 77.087601][ T5009] ? lockdep_hardirqs_on+0x7d/0x100 [ 77.092971][ T5009] ? _raw_spin_unlock_irq+0x2e/0x50 [ 77.098183][ T5009] ? ptrace_notify+0xfe/0x140 [ 77.102951][ T5009] do_syscall_64+0x39/0xb0 [ 77.107408][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 77.113369][ T5009] RIP: 0033:0x7f97f8e01bb9 [ 77.117812][ T5009] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 77.137495][ T5009] RSP: 002b:00007ffc8f993a58 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 77.145964][ T5009] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f97f8e01bb9 [ 77.154001][ T5009] RDX: 0000000000000001 RSI: 0000000020005b80 RDI: 0000000000000004 [ 77.161993][ T5009] RBP: 00007f97f8dc5d60 R08: 0000000000000000 R09: 0000000000000000 [ 77.170026][ T5009] R10: 0000000000000140 R11: 0000000000000246 R12: 00007f97f8dc5df0 [ 77.178065][ T5009] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 77.186110][ T5009] [ 77.189154][ T5009] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 77.196436][ T5009] CPU: 0 PID: 5009 Comm: syz-executor242 Not tainted 6.4.0-rc7-syzkaller-01944-g3674fbf0451d #0 [ 77.206860][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 77.216930][ T5009] Call Trace: [ 77.220222][ T5009] [ 77.223171][ T5009] dump_stack_lvl+0xd9/0x150 [ 77.227806][ T5009] panic+0x686/0x730 [ 77.231735][ T5009] ? panic_smp_self_stop+0xa0/0xa0 [ 77.236880][ T5009] ? show_trace_log_lvl+0x284/0x390 [ 77.242125][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 77.247526][ T5009] check_panic_on_warn+0xb1/0xc0 [ 77.252499][ T5009] __warn+0xf2/0x390 [ 77.256427][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 77.261824][ T5009] report_bug+0x2da/0x500 [ 77.266187][ T5009] handle_bug+0x3c/0x70 [ 77.270937][ T5009] exc_invalid_op+0x18/0x50 [ 77.275487][ T5009] asm_exc_invalid_op+0x1a/0x20 [ 77.280362][ T5009] RIP: 0010:scm_recv.constprop.0+0x755/0x850 [ 77.286379][ T5009] Code: 0e f9 e9 55 fd ff ff e8 29 f5 0e f9 e9 7f fd ff ff e8 1f f5 0e f9 e9 39 fb ff ff e8 15 f5 0e f9 e9 02 fd ff ff e8 3b e3 bb f8 <0f> 0b e9 f9 fb ff ff e8 1f f5 0e f9 e9 2d f9 ff ff e8 15 f5 0e f9 [ 77.306008][ T5009] RSP: 0018:ffffc900039df660 EFLAGS: 00010293 [ 77.312093][ T5009] RAX: 0000000000000000 RBX: ffff888078229800 RCX: 0000000000000000 [ 77.320085][ T5009] RDX: ffff888027243b80 RSI: ffffffff88c86625 RDI: 0000000000000007 [ 77.328073][ T5009] RBP: ffffc900039df818 R08: 0000000000000007 R09: 0000000000000013 [ 77.336080][ T5009] R10: 00000000000000e1 R11: 0000000000000001 R12: ffffc900039dfdb0 [ 77.344070][ T5009] R13: 0000000000000000 R14: ffff888078229808 R15: 1ffff9200073becc [ 77.352067][ T5009] ? scm_recv.constprop.0+0x755/0x850 [ 77.357482][ T5009] ? bpf_iter_init_unix+0x70/0x70 [ 77.362534][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 77.367594][ T5009] ? spin_bug+0x1c0/0x1c0 [ 77.371955][ T5009] unix_stream_read_generic+0x604/0x2030 [ 77.377625][ T5009] ? unix_dgram_poll+0x770/0x770 [ 77.382610][ T5009] unix_stream_recvmsg+0x18b/0x1c0 [ 77.387746][ T5009] ? unix_stream_splice_read+0x1f0/0x1f0 [ 77.393412][ T5009] ? unix_copy_addr+0x100/0x100 [ 77.398290][ T5009] ? bpf_lsm_socket_recvmsg+0x9/0x10 [ 77.403592][ T5009] ? security_socket_recvmsg+0x93/0xc0 [ 77.409079][ T5009] ? unix_stream_splice_read+0x1f0/0x1f0 [ 77.414746][ T5009] sock_recvmsg+0xe2/0x160 [ 77.419182][ T5009] ____sys_recvmsg+0x210/0x5a0 [ 77.423976][ T5009] ? kernel_recvmsg+0x80/0x80 [ 77.428673][ T5009] ? copy_msghdr_from_user+0xfc/0x150 [ 77.434068][ T5009] ? __copy_msghdr+0x4b0/0x4b0 [ 77.438869][ T5009] ___sys_recvmsg+0xf2/0x180 [ 77.443485][ T5009] ? copy_msghdr_from_user+0x150/0x150 [ 77.448981][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.454998][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 77.461020][ T5009] ? __fget_light+0x20a/0x270 [ 77.465745][ T5009] do_recvmmsg+0x25e/0x6f0 [ 77.470197][ T5009] ? ___sys_recvmsg+0x180/0x180 [ 77.475084][ T5009] ? spin_bug+0x1c0/0x1c0 [ 77.479437][ T5009] ? _raw_spin_lock_irq+0x45/0x50 [ 77.484484][ T5009] ? recalc_sigpending_tsk+0x18b/0x1d0 [ 77.489968][ T5009] ? ptrace_notify+0xfe/0x140 [ 77.494665][ T5009] ? lock_downgrade+0x690/0x690 [ 77.499544][ T5009] __x64_sys_recvmmsg+0x20f/0x260 [ 77.504596][ T5009] ? _raw_spin_unlock_irq+0x23/0x50 [ 77.509816][ T5009] ? __do_sys_socketcall+0x650/0x650 [ 77.515128][ T5009] ? lockdep_hardirqs_on+0x7d/0x100 [ 77.520350][ T5009] ? _raw_spin_unlock_irq+0x2e/0x50 [ 77.525565][ T5009] ? ptrace_notify+0xfe/0x140 [ 77.530267][ T5009] do_syscall_64+0x39/0xb0 [ 77.534703][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 77.540612][ T5009] RIP: 0033:0x7f97f8e01bb9 [ 77.545038][ T5009] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 77.564660][ T5009] RSP: 002b:00007ffc8f993a58 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 77.573091][ T5009] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f97f8e01bb9 [ 77.581075][ T5009] RDX: 0000000000000001 RSI: 0000000020005b80 RDI: 0000000000000004 [ 77.589054][ T5009] RBP: 00007f97f8dc5d60 R08: 0000000000000000 R09: 0000000000000000 [ 77.597035][ T5009] R10: 0000000000000140 R11: 0000000000000246 R12: 00007f97f8dc5df0 [ 77.605019][ T5009] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 77.613015][ T5009] [ 77.616306][ T5009] Kernel Offset: disabled [ 77.620718][ T5009] Rebooting in 86400 seconds..