./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor90621850 <...> Warning: Permanently added '10.128.1.30' (ED25519) to the list of known hosts. execve("./syz-executor90621850", ["./syz-executor90621850"], 0x7ffe3ae52f00 /* 10 vars */) = 0 brk(NULL) = 0x555555f8f000 brk(0x555555f8fd00) = 0x555555f8fd00 arch_prctl(ARCH_SET_FS, 0x555555f8f380) = 0 set_tid_address(0x555555f8f650) = 5026 set_robust_list(0x555555f8f660, 24) = 0 rseq(0x555555f8fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor90621850", 4096) = 26 getrandom("\xc9\x42\x29\x7f\x86\x95\xda\xc9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555f8fd00 brk(0x555555fb0d00) = 0x555555fb0d00 brk(0x555555fb1000) = 0x555555fb1000 mprotect(0x7f294812c000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f8f650) = 5027 ./strace-static-x86_64: Process 5027 attached [pid 5027] set_robust_list(0x555555f8f660, 24) = 0 [pid 5027] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5027] setsid() = 1 [pid 5027] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5027] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5027] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5027] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5027] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5027] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5027] unshare(CLONE_NEWNS) = 0 [pid 5027] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5027] unshare(CLONE_NEWIPC) = 0 [pid 5027] unshare(CLONE_NEWCGROUP) = 0 [pid 5027] unshare(CLONE_NEWUTS) = 0 [pid 5027] unshare(CLONE_SYSVSEM) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "16777216", 8) = 8 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "536870912", 9) = 9 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "1024", 4) = 4 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "8192", 4) = 4 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "1024", 4) = 4 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "1024", 4) = 4 [pid 5027] close(3) = 0 [pid 5027] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5027] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5027] close(3) = 0 [pid 5027] getpid() = 1 [pid 5027] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 3b f7 ff ff e8 fc 68 b0 f9 e9 fc ec ff ff 4c 89 e7 e8 4f [ 72.543975][ T5027] RSP: 0018:ffffc900039bfae0 EFLAGS: 00010293 [ 72.550037][ T5027] RAX: 0000000000000000 RBX: 0000000027f95e01 RCX: 0000000000000000 [ 72.558100][ T5027] RDX: ffff88802d241dc0 RSI: ffffffff8829a7b8 RDI: 0000000000000001 [ 72.566141][ T5027] RBP: ffff88807c680000 R08: 0000000000000001 R09: 0000000000000000 [ 72.574174][ T5027] R10: 0000000000000001 R11: ffffffff8a40008b R12: ffff888029882e80 [ 72.582174][ T5027] R13: 0000000000000000 R14: 0000000000000002 R15: ffff888029882e80 [ 72.590296][ T5027] FS: 0000555555f8f380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 72.599400][ T5027] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.606025][ T5027] CR2: 0000000020002800 CR3: 000000007f16b000 CR4: 00000000003506f0 [ 72.614048][ T5027] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.622007][ T5027] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.630101][ T5027] Call Trace: [ 72.633384][ T5027] [ 72.636752][ T5027] ? __warn+0xe6/0x380 [ 72.640825][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.647461][ T5027] ? report_bug+0x3bc/0x580 [ 72.651986][ T5027] ? handle_bug+0x3c/0x70 [ 72.656362][ T5027] ? exc_invalid_op+0x17/0x40 [ 72.661056][ T5027] ? asm_exc_invalid_op+0x1a/0x20 [ 72.666141][ T5027] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.672240][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.678884][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.685530][ T5027] ? netdev_freemem+0x60/0x60 [ 72.690207][ T5027] ? find_held_lock+0x2d/0x110 [ 72.695051][ T5027] ? vlan_ioctl_handler+0xcf/0xa80 [ 72.700191][ T5027] unregister_netdevice_queue+0x2e5/0x3c0 [ 72.706089][ T5027] ? unregister_netdevice_many+0x20/0x20 [ 72.711766][ T5027] unregister_vlan_dev+0x2a9/0x580 [ 72.716983][ T5027] vlan_ioctl_handler+0x387/0xa80 [ 72.722027][ T5027] ? register_vlan_dev+0x930/0x930 [ 72.727217][ T5027] ? register_vlan_dev+0x930/0x930 [ 72.732343][ T5027] sock_ioctl+0x4b0/0x6e0 [ 72.736761][ T5027] ? br_ioctl_call+0xb0/0xb0 [ 72.741377][ T5027] ? bpf_lsm_file_free_security+0x10/0x10 [ 72.747142][ T5027] ? bpf_lsm_file_ioctl+0x9/0x10 [ 72.752095][ T5027] ? br_ioctl_call+0xb0/0xb0 [ 72.756759][ T5027] __x64_sys_ioctl+0x18f/0x210 [ 72.761554][ T5027] do_syscall_64+0x38/0xb0 [ 72.766015][ T5027] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 72.771923][ T5027] RIP: 0033:0x7f29480b4419 [ 72.776398][ T5027] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 72.796151][ T5027] RSP: 002b:00007ffdb9d37898 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 72.804776][ T5027] RAX: ffffffffffffffda RBX: 00007f2948101390 RCX: 00007f29480b4419 [ 72.812766][ T5027] RDX: 0000000020002800 RSI: 0000000000008982 RDI: 0000000000000004 [ 72.820782][ T5027] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 72.828877][ T5027] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffdb9d378e0 [ 72.836900][ T5027] R13: 00007ffdb9d378b0 R14: 0000000000000001 R15: 00007ffdb9d378e0 [ 72.845003][ T5027] [ 72.848028][ T5027] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 72.855293][ T5027] CPU: 0 PID: 5027 Comm: syz-executor906 Not tainted 6.5.0-rc4-syzkaller-00248-g048c796beb6e #0 [ 72.865689][ T5027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 72.875734][ T5027] Call Trace: [ 72.879001][ T5027] [ 72.881916][ T5027] dump_stack_lvl+0xd9/0x1b0 [ 72.886499][ T5027] panic+0x6a4/0x750 [ 72.890384][ T5027] ? panic_smp_self_stop+0xa0/0xa0 [ 72.895492][ T5027] ? show_trace_log_lvl+0x29d/0x3c0 [ 72.900688][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.907280][ T5027] check_panic_on_warn+0xab/0xb0 [ 72.912213][ T5027] __warn+0xf2/0x380 [ 72.916100][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.922680][ T5027] report_bug+0x3bc/0x580 [ 72.927004][ T5027] handle_bug+0x3c/0x70 [ 72.931145][ T5027] exc_invalid_op+0x17/0x40 [ 72.935637][ T5027] asm_exc_invalid_op+0x1a/0x20 [ 72.940476][ T5027] RIP: 0010:unregister_netdevice_many_notify+0x14d8/0x19a0 [ 72.947670][ T5027] Code: b4 1a 00 00 48 c7 c6 e0 18 81 8b 48 c7 c7 20 19 81 8b c6 05 ab 19 6c 06 01 e8 b4 22 23 f9 0f 0b e9 64 f7 ff ff e8 68 60 5c f9 <0f> 0b e9 3b f7 ff ff e8 fc 68 b0 f9 e9 fc ec ff ff 4c 89 e7 e8 4f [ 72.967278][ T5027] RSP: 0018:ffffc900039bfae0 EFLAGS: 00010293 [ 72.973353][ T5027] RAX: 0000000000000000 RBX: 0000000027f95e01 RCX: 0000000000000000 [ 72.981343][ T5027] RDX: ffff88802d241dc0 RSI: ffffffff8829a7b8 RDI: 0000000000000001 [ 72.989320][ T5027] RBP: ffff88807c680000 R08: 0000000000000001 R09: 0000000000000000 [ 72.997297][ T5027] R10: 0000000000000001 R11: ffffffff8a40008b R12: ffff888029882e80 [ 73.005274][ T5027] R13: 0000000000000000 R14: 0000000000000002 R15: ffff888029882e80 [ 73.013253][ T5027] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.019335][ T5027] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 73.025956][ T5027] ? netdev_freemem+0x60/0x60 [ 73.030649][ T5027] ? find_held_lock+0x2d/0x110 [ 73.035441][ T5027] ? vlan_ioctl_handler+0xcf/0xa80 [ 73.040563][ T5027] unregister_netdevice_queue+0x2e5/0x3c0 [ 73.046389][ T5027] ? unregister_netdevice_many+0x20/0x20 [ 73.052047][ T5027] unregister_vlan_dev+0x2a9/0x580 [ 73.057174][ T5027] vlan_ioctl_handler+0x387/0xa80 [ 73.062388][ T5027] ? register_vlan_dev+0x930/0x930 [ 73.067532][ T5027] ? register_vlan_dev+0x930/0x930 [ 73.072651][ T5027] sock_ioctl+0x4b0/0x6e0 [ 73.076998][ T5027] ? br_ioctl_call+0xb0/0xb0 [ 73.081609][ T5027] ? bpf_lsm_file_free_security+0x10/0x10 [ 73.087341][ T5027] ? bpf_lsm_file_ioctl+0x9/0x10 [ 73.092286][ T5027] ? br_ioctl_call+0xb0/0xb0 [ 73.096889][ T5027] __x64_sys_ioctl+0x18f/0x210 [ 73.101674][ T5027] do_syscall_64+0x38/0xb0 [ 73.106128][ T5027] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.112035][ T5027] RIP: 0033:0x7f29480b4419 [ 73.116483][ T5027] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 73.136209][ T5027] RSP: 002b:00007ffdb9d37898 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 73.144652][ T5027] RAX: ffffffffffffffda RBX: 00007f2948101390 RCX: 00007f29480b4419 [ 73.152635][ T5027] RDX: 0000000020002800 RSI: 0000000000008982 RDI: 0000000000000004 [ 73.160704][ T5027] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 73.168800][ T5027] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffdb9d378e0 [ 73.176780][ T5027] R13: 00007ffdb9d378b0 R14: 0000000000000001 R15: 00007ffdb9d378e0 [ 73.184773][ T5027] [ 73.187995][ T5027] Kernel Offset: disabled [ 73.192414][ T5027] Rebooting in 86400 seconds..