./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1439571158 <...> [ 87.186568][ T27] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts. execve("./syz-executor1439571158", ["./syz-executor1439571158"], 0x7fff062278f0 /* 10 vars */) = 0 brk(NULL) = 0x555555f19000 brk(0x555555f19d00) = 0x555555f19d00 arch_prctl(ARCH_SET_FS, 0x555555f19380) = 0 set_tid_address(0x555555f19650) = 5069 set_robust_list(0x555555f19660, 24) = 0 rseq(0x555555f19ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1439571158", 4096) = 28 getrandom("\xe5\x13\x7d\x8c\x4d\xd7\xba\xdb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555f19d00 brk(0x555555f3ad00) = 0x555555f3ad00 brk(0x555555f3b000) = 0x555555f3b000 mprotect(0x7f36edd5c000, 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./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x555555f19660, 24) = 0 [pid 5070] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5069] <... clone resumed>, child_tidptr=0x555555f19650) = 5070 [pid 5070] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setsid() = 1 [pid 5070] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5070] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5070] unshare(CLONE_NEWNS) = 0 [pid 5070] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5070] unshare(CLONE_NEWIPC) = 0 [pid 5070] unshare(CLONE_NEWCGROUP) = 0 [pid 5070] unshare(CLONE_NEWUTS) = 0 [pid 5070] unshare(CLONE_SYSVSEM) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "16777216", 8) = 8 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "536870912", 9) = 9 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "8192", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5070] close(3) = 0 [pid 5070] getpid() = 1 [pid 5070] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 45 31 f6 e9 97 fe ff ff e8 96 47 9c ff 84 c0 0f 85 8a fe ff [ 98.377739][ T37] RSP: 0018:ffffc90000adf8e8 EFLAGS: 00010046 [ 98.383818][ T37] RAX: 0000000000000000 RBX: 0000000000060820 RCX: 0000000000000000 [ 98.391797][ T37] RDX: 0000000000000000 RSI: 0000000000000013 RDI: 0000000000060820 [ 98.399781][ T37] RBP: 1ffff9200015bf1e R08: 0000000000000001 R09: 0000000000000000 [ 98.407839][ T37] R10: 0000000000000001 R11: ffffffff81df73c1 R12: 0000000000000013 [ 98.415810][ T37] R13: 0000000000000000 R14: 00000000ffffffff R15: 000000005e641940 [ 98.423867][ T37] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 98.433062][ T37] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.440348][ T37] CR2: 00007f36edd652d0 CR3: 0000000016ad3000 CR4: 00000000003506f0 [ 98.448336][ T37] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.456657][ T37] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.464640][ T37] Call Trace: [ 98.467915][ T37] [ 98.470847][ T37] ? show_regs+0x8f/0xa0 [ 98.475108][ T37] ? __warn+0xe6/0x380 [ 98.479194][ T37] ? __alloc_pages+0x3ab/0x4a0 [ 98.484067][ T37] ? report_bug+0x3bc/0x580 [ 98.488636][ T37] ? handle_bug+0x3c/0x70 [ 98.493188][ T37] ? exc_invalid_op+0x17/0x40 [ 98.497926][ T37] ? asm_exc_invalid_op+0x1a/0x20 [ 98.502965][ T37] ? __kasan_slab_alloc+0x81/0x90 [ 98.508005][ T37] ? __alloc_pages+0x3ab/0x4a0 [ 98.512869][ T37] ? __alloc_pages_slowpath.constprop.0+0x2360/0x2360 [ 98.519923][ T37] __kmalloc_large_node+0x87/0x1c0 [ 98.525134][ T37] ? __alloc_skb+0x12b/0x330 [ 98.529900][ T37] __kmalloc_node_track_caller.cold+0x5/0xdd [ 98.535896][ T37] kmalloc_reserve+0x218/0x260 [ 98.540671][ T37] __alloc_skb+0x12b/0x330 [ 98.545098][ T37] ? __napi_build_skb+0x50/0x50 [ 98.549961][ T37] ? do_raw_spin_lock+0x12e/0x2b0 [ 98.555011][ T37] ? spin_bug+0x1d0/0x1d0 [ 98.559539][ T37] __netdev_alloc_skb+0x72/0x3f0 [ 98.564575][ T37] ppp_sync_receive+0xff/0x680 [ 98.569387][ T37] ? sp_put+0xa0/0xa0 [ 98.573395][ T37] tty_ldisc_receive_buf+0x14c/0x180 [ 98.578718][ T37] tty_port_default_receive_buf+0x70/0xb0 [ 98.584544][ T37] flush_to_ldisc+0x261/0x780 [ 98.589417][ T37] process_one_work+0x884/0x15c0 [ 98.594400][ T37] ? batadv_nc_process_nc_paths.part.0+0x3e0/0x3e0 [ 98.604152][ T37] ? init_worker_pool+0x770/0x770 [ 98.609312][ T37] ? assign_work+0x1a0/0x240 [ 98.613947][ T37] worker_thread+0x8b9/0x1290 [ 98.618692][ T37] ? process_one_work+0x15c0/0x15c0 [ 98.624165][ T37] kthread+0x33c/0x440 [ 98.628327][ T37] ? _raw_spin_unlock_irq+0x23/0x50 [ 98.633535][ T37] ? kthread_complete_and_exit+0x40/0x40 [ 98.639263][ T37] ret_from_fork+0x45/0x80 [ 98.643685][ T37] ? kthread_complete_and_exit+0x40/0x40 [ 98.649326][ T37] ret_from_fork_asm+0x11/0x20 [ 98.654226][ T37] [ 98.657266][ T37] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 98.664556][ T37] CPU: 1 PID: 37 Comm: kworker/u4:2 Not tainted 6.6.0-syzkaller-16159-g3ca112b71f35 #0 [ 98.674685][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 98.685627][ T37] Workqueue: events_unbound flush_to_ldisc [ 98.691790][ T37] Call Trace: [ 98.695070][ T37] [ 98.698020][ T37] dump_stack_lvl+0xd9/0x1b0 [ 98.702734][ T37] panic+0x6dc/0x790 [ 98.706648][ T37] ? panic_smp_self_stop+0xa0/0xa0 [ 98.712308][ T37] ? show_trace_log_lvl+0x363/0x4f0 [ 98.717542][ T37] ? check_panic_on_warn+0x1f/0xb0 [ 98.722677][ T37] ? __alloc_pages+0x3ab/0x4a0 [ 98.727452][ T37] check_panic_on_warn+0xab/0xb0 [ 98.732578][ T37] __warn+0xf2/0x380 [ 98.736480][ T37] ? __alloc_pages+0x3ab/0x4a0 [ 98.741340][ T37] report_bug+0x3bc/0x580 [ 98.745687][ T37] handle_bug+0x3c/0x70 [ 98.750041][ T37] exc_invalid_op+0x17/0x40 [ 98.754689][ T37] asm_exc_invalid_op+0x1a/0x20 [ 98.759803][ T37] RIP: 0010:__alloc_pages+0x3ab/0x4a0 [ 98.765192][ T37] Code: ff ff 00 0f 84 2f fe ff ff 80 ce 01 e9 27 fe ff ff 83 fe 0a 0f 86 3a fd ff ff 80 3d ce 6a 2f 0d 00 75 09 c6 05 c5 6a 2f 0d 01 <0f> 0b 45 31 f6 e9 97 fe ff ff e8 96 47 9c ff 84 c0 0f 85 8a fe ff [ 98.785531][ T37] RSP: 0018:ffffc90000adf8e8 EFLAGS: 00010046 [ 98.791868][ T37] RAX: 0000000000000000 RBX: 0000000000060820 RCX: 0000000000000000 [ 98.800481][ T37] RDX: 0000000000000000 RSI: 0000000000000013 RDI: 0000000000060820 [ 98.808552][ T37] RBP: 1ffff9200015bf1e R08: 0000000000000001 R09: 0000000000000000 [ 98.816786][ T37] R10: 0000000000000001 R11: ffffffff81df73c1 R12: 0000000000000013 [ 98.825462][ T37] R13: 0000000000000000 R14: 00000000ffffffff R15: 000000005e641940 [ 98.833703][ T37] ? __kasan_slab_alloc+0x81/0x90 [ 98.838783][ T37] ? __alloc_pages_slowpath.constprop.0+0x2360/0x2360 [ 98.845769][ T37] __kmalloc_large_node+0x87/0x1c0 [ 98.850987][ T37] ? __alloc_skb+0x12b/0x330 [ 98.855684][ T37] __kmalloc_node_track_caller.cold+0x5/0xdd [ 98.861682][ T37] kmalloc_reserve+0x218/0x260 [ 98.866547][ T37] __alloc_skb+0x12b/0x330 [ 98.875575][ T37] ? __napi_build_skb+0x50/0x50 [ 98.880606][ T37] ? do_raw_spin_lock+0x12e/0x2b0 [ 98.885822][ T37] ? spin_bug+0x1d0/0x1d0 [ 98.890288][ T37] __netdev_alloc_skb+0x72/0x3f0 [ 98.895267][ T37] ppp_sync_receive+0xff/0x680 [ 98.900197][ T37] ? sp_put+0xa0/0xa0 [ 98.904289][ T37] tty_ldisc_receive_buf+0x14c/0x180 [ 98.909871][ T37] tty_port_default_receive_buf+0x70/0xb0 [ 98.915792][ T37] flush_to_ldisc+0x261/0x780 [ 98.921128][ T37] process_one_work+0x884/0x15c0 [ 98.926095][ T37] ? batadv_nc_process_nc_paths.part.0+0x3e0/0x3e0 [ 98.932787][ T37] ? init_worker_pool+0x770/0x770 [ 98.938007][ T37] ? assign_work+0x1a0/0x240 [ 98.942755][ T37] worker_thread+0x8b9/0x1290 [ 98.947912][ T37] ? process_one_work+0x15c0/0x15c0 [ 98.953597][ T37] kthread+0x33c/0x440 [ 98.959178][ T37] ? _raw_spin_unlock_irq+0x23/0x50 [ 98.964412][ T37] ? kthread_complete_and_exit+0x40/0x40 [ 98.970093][ T37] ret_from_fork+0x45/0x80 [ 98.975323][ T37] ? kthread_complete_and_exit+0x40/0x40 [ 98.981076][ T37] ret_from_fork_asm+0x11/0x20 [ 98.985976][ T37] [ 98.989608][ T37] Kernel Offset: disabled [ 98.994495][ T37] Rebooting in 86400 seconds..