./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor567814102 <...> Warning: Permanently added '10.128.0.109' (ED25519) to the list of known hosts. execve("./syz-executor567814102", ["./syz-executor567814102"], 0x7ffd9596d370 /* 10 vars */) = 0 brk(NULL) = 0x5555560c6000 brk(0x5555560c6d00) = 0x5555560c6d00 arch_prctl(ARCH_SET_FS, 0x5555560c6380) = 0 set_tid_address(0x5555560c6650) = 5025 set_robust_list(0x5555560c6660, 24) = 0 rseq(0x5555560c6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor567814102", 4096) = 27 getrandom("\x2f\x3c\x4c\x7b\xcd\x7f\xdf\x4e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555560c6d00 brk(0x5555560e7d00) = 0x5555560e7d00 brk(0x5555560e8000) = 0x5555560e8000 mprotect(0x7fa60425f000, 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=0x5555560c6650) = 5026 ./strace-static-x86_64: Process 5026 attached [pid 5026] set_robust_list(0x5555560c6660, 24) = 0 [pid 5026] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5026] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5026] setsid() = 1 [pid 5026] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5026] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5026] unshare(CLONE_NEWNS) = 0 [pid 5026] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5026] unshare(CLONE_NEWIPC) = 0 [pid 5026] unshare(CLONE_NEWCGROUP) = 0 [pid 5026] unshare(CLONE_NEWUTS) = 0 [pid 5026] unshare(CLONE_SYSVSEM) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "16777216", 8) = 8 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "536870912", 9) = 9 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1024", 4) = 4 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "8192", 4) = 4 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1024", 4) = 4 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1024", 4) = 4 [pid 5026] close(3) = 0 [pid 5026] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5026] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5026] close(3) = 0 [pid 5026] getpid() = 1 [pid 5026] 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 [ 61.200349][ T5026] RSP: 0018:ffffc90003a1fae0 EFLAGS: 00010293 [ 61.206481][ T5026] RAX: 0000000000000000 RBX: 0000000019babe01 RCX: 0000000000000000 [ 61.214452][ T5026] RDX: ffff88807bde3b80 RSI: ffffffff8829a7b8 RDI: 0000000000000001 [ 61.222532][ T5026] RBP: ffff88802a05a000 R08: 0000000000000001 R09: 0000000000000000 [ 61.230591][ T5026] R10: 0000000000000001 R11: ffffffff8a40008b R12: ffff88801f3fb780 [ 61.238759][ T5026] R13: 0000000000000000 R14: 0000000000000002 R15: ffff88801f3fb780 [ 61.246812][ T5026] FS: 00005555560c6380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.255981][ T5026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.262603][ T5026] CR2: 0000000020002800 CR3: 0000000072845000 CR4: 00000000003506f0 [ 61.270650][ T5026] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.278765][ T5026] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.286833][ T5026] Call Trace: [ 61.290137][ T5026] [ 61.293082][ T5026] ? __warn+0xe6/0x380 [ 61.297217][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.303841][ T5026] ? report_bug+0x3bc/0x580 [ 61.308414][ T5026] ? handle_bug+0x3c/0x70 [ 61.312767][ T5026] ? exc_invalid_op+0x17/0x40 [ 61.317592][ T5026] ? asm_exc_invalid_op+0x1a/0x20 [ 61.322647][ T5026] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.328842][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.335512][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.342117][ T5026] ? netdev_freemem+0x60/0x60 [ 61.346880][ T5026] ? find_held_lock+0x2d/0x110 [ 61.351668][ T5026] ? vlan_ioctl_handler+0xcf/0xa80 [ 61.356886][ T5026] unregister_netdevice_queue+0x2e5/0x3c0 [ 61.362813][ T5026] ? unregister_netdevice_many+0x20/0x20 [ 61.368518][ T5026] unregister_vlan_dev+0x2a9/0x580 [ 61.373664][ T5026] vlan_ioctl_handler+0x387/0xa80 [ 61.378808][ T5026] ? register_vlan_dev+0x930/0x930 [ 61.384053][ T5026] ? register_vlan_dev+0x930/0x930 [ 61.389319][ T5026] sock_ioctl+0x4b0/0x6e0 [ 61.393680][ T5026] ? br_ioctl_call+0xb0/0xb0 [ 61.398504][ T5026] ? bpf_lsm_file_ioctl+0x9/0x10 [ 61.403477][ T5026] ? br_ioctl_call+0xb0/0xb0 [ 61.408244][ T5026] __x64_sys_ioctl+0x18f/0x210 [ 61.413053][ T5026] do_syscall_64+0x38/0xb0 [ 61.417703][ T5026] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.423628][ T5026] RIP: 0033:0x7fa6041e7419 [ 61.428123][ T5026] 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 [ 61.447855][ T5026] RSP: 002b:00007ffdf617af18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.456348][ T5026] RAX: ffffffffffffffda RBX: 00007fa604234390 RCX: 00007fa6041e7419 [ 61.464519][ T5026] RDX: 0000000020002800 RSI: 0000000000008982 RDI: 0000000000000004 [ 61.472772][ T5026] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 61.480985][ T5026] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffdf617af60 [ 61.489075][ T5026] R13: 00007ffdf617af30 R14: 0000000000000001 R15: 00007ffdf617af60 [ 61.497206][ T5026] [ 61.500223][ T5026] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 61.507591][ T5026] CPU: 0 PID: 5026 Comm: syz-executor567 Not tainted 6.5.0-rc4-syzkaller-00248-g048c796beb6e #0 [ 61.518089][ T5026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 61.528160][ T5026] Call Trace: [ 61.531449][ T5026] [ 61.534374][ T5026] dump_stack_lvl+0xd9/0x1b0 [ 61.539006][ T5026] panic+0x6a4/0x750 [ 61.542895][ T5026] ? panic_smp_self_stop+0xa0/0xa0 [ 61.548004][ T5026] ? show_trace_log_lvl+0x29d/0x3c0 [ 61.553332][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.560113][ T5026] check_panic_on_warn+0xab/0xb0 [ 61.565084][ T5026] __warn+0xf2/0x380 [ 61.568998][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.575611][ T5026] report_bug+0x3bc/0x580 [ 61.580057][ T5026] handle_bug+0x3c/0x70 [ 61.584230][ T5026] exc_invalid_op+0x17/0x40 [ 61.588752][ T5026] asm_exc_invalid_op+0x1a/0x20 [ 61.593623][ T5026] RIP: 0010:unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.600932][ T5026] 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 [ 61.620559][ T5026] RSP: 0018:ffffc90003a1fae0 EFLAGS: 00010293 [ 61.626642][ T5026] RAX: 0000000000000000 RBX: 0000000019babe01 RCX: 0000000000000000 [ 61.634624][ T5026] RDX: ffff88807bde3b80 RSI: ffffffff8829a7b8 RDI: 0000000000000001 [ 61.642607][ T5026] RBP: ffff88802a05a000 R08: 0000000000000001 R09: 0000000000000000 [ 61.650594][ T5026] R10: 0000000000000001 R11: ffffffff8a40008b R12: ffff88801f3fb780 [ 61.658579][ T5026] R13: 0000000000000000 R14: 0000000000000002 R15: ffff88801f3fb780 [ 61.666568][ T5026] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.672658][ T5026] ? unregister_netdevice_many_notify+0x14d8/0x19a0 [ 61.679542][ T5026] ? netdev_freemem+0x60/0x60 [ 61.684328][ T5026] ? find_held_lock+0x2d/0x110 [ 61.689133][ T5026] ? vlan_ioctl_handler+0xcf/0xa80 [ 61.694278][ T5026] unregister_netdevice_queue+0x2e5/0x3c0 [ 61.700120][ T5026] ? unregister_netdevice_many+0x20/0x20 [ 61.705791][ T5026] unregister_vlan_dev+0x2a9/0x580 [ 61.710947][ T5026] vlan_ioctl_handler+0x387/0xa80 [ 61.716019][ T5026] ? register_vlan_dev+0x930/0x930 [ 61.721280][ T5026] ? register_vlan_dev+0x930/0x930 [ 61.726424][ T5026] sock_ioctl+0x4b0/0x6e0 [ 61.730788][ T5026] ? br_ioctl_call+0xb0/0xb0 [ 61.735501][ T5026] ? bpf_lsm_file_ioctl+0x9/0x10 [ 61.740452][ T5026] ? br_ioctl_call+0xb0/0xb0 [ 61.745058][ T5026] __x64_sys_ioctl+0x18f/0x210 [ 61.749857][ T5026] do_syscall_64+0x38/0xb0 [ 61.754283][ T5026] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.760191][ T5026] RIP: 0033:0x7fa6041e7419 [ 61.764618][ T5026] 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 [ 61.784245][ T5026] RSP: 002b:00007ffdf617af18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 61.792768][ T5026] RAX: ffffffffffffffda RBX: 00007fa604234390 RCX: 00007fa6041e7419 [ 61.800752][ T5026] RDX: 0000000020002800 RSI: 0000000000008982 RDI: 0000000000000004 [ 61.808733][ T5026] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 61.816732][ T5026] R10: 0000555500000000 R11: 0000000000000246 R12: 00007ffdf617af60 [ 61.824758][ T5026] R13: 00007ffdf617af30 R14: 0000000000000001 R15: 00007ffdf617af60 [ 61.832872][ T5026] [ 61.836137][ T5026] Kernel Offset: disabled [ 61.840646][ T5026] Rebooting in 86400 seconds..