./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1544353336 <...> Warning: Permanently added '10.128.0.61' (ED25519) to the list of known hosts. execve("./syz-executor1544353336", ["./syz-executor1544353336"], 0x7ffef6df8670 /* 10 vars */) = 0 brk(NULL) = 0x55556e831000 brk(0x55556e831d00) = 0x55556e831d00 arch_prctl(ARCH_SET_FS, 0x55556e831380) = 0 set_tid_address(0x55556e831650) = 5224 set_robust_list(0x55556e831660, 24) = 0 rseq(0x55556e831ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1544353336", 4096) = 28 getrandom("\xdf\xaa\x69\x54\x98\x5c\x06\xf3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556e831d00 brk(0x55556e852d00) = 0x55556e852d00 brk(0x55556e853000) = 0x55556e853000 mprotect(0x7f09b4278000, 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=0x55556e831650) = 5225 ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x55556e831660, 24) = 0 [pid 5225] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5225] setsid() = 1 [pid 5225] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5225] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5225] unshare(CLONE_NEWNS) = 0 [pid 5225] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5225] unshare(CLONE_NEWIPC) = 0 [pid 5225] unshare(CLONE_NEWCGROUP) = 0 [pid 5225] unshare(CLONE_NEWUTS) = 0 [pid 5225] unshare(CLONE_SYSVSEM) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "16777216", 8) = 8 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "536870912", 9) = 9 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "8192", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024", 4) = 4 [pid 5225] close(3) = 0 [pid 5225] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5225] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5225] close(3) = 0 [pid 5225] getpid() = 1 [pid 5225] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 90 e9 76 ff ff ff e8 f8 88 e3 fc c6 05 50 7d 31 0b 01 90 [ 70.267258][ C0] RSP: 0018:ffffc900000076e0 EFLAGS: 00010246 [ 70.273325][ C0] RAX: b72359b2da0c4a00 RBX: ffff8880213d1864 RCX: ffff8880176cda00 [ 70.281350][ C0] RDX: 0000000080000102 RSI: 0000000000000000 RDI: 0000000000000000 [ 70.289399][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 70.297440][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802b3dac00 [ 70.305476][ C0] R13: ffff8880213d1864 R14: ffff88802b3dac00 R15: ffff888077daa118 [ 70.313469][ C0] FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 70.322474][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.329113][ C0] CR2: 00005626f04f7000 CR3: 000000007c7d2000 CR4: 00000000003506f0 [ 70.337128][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.345161][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.353141][ C0] Call Trace: [ 70.356457][ C0] [ 70.359312][ C0] ? __warn+0x163/0x4e0 [ 70.363455][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 70.369041][ C0] ? report_bug+0x2b3/0x500 [ 70.373568][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 70.379165][ C0] ? handle_bug+0x3e/0x70 [ 70.383509][ C0] ? exc_invalid_op+0x1a/0x50 [ 70.388228][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 70.393269][ C0] ? __warn_printk+0x292/0x360 [ 70.398084][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 70.403730][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 70.408647][ C0] j1939_tp_recv+0x8ae/0x1050 [ 70.413337][ C0] j1939_can_recv+0x732/0xb20 [ 70.418057][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 70.423274][ C0] ? __lock_acquire+0x137a/0x2040 [ 70.428341][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 70.433551][ C0] can_rcv_filter+0x359/0x7f0 [ 70.438268][ C0] ? can_receive+0x1cd/0x470 [ 70.442878][ C0] can_receive+0x31c/0x470 [ 70.447331][ C0] can_rcv+0x144/0x260 [ 70.451410][ C0] ? __pfx_can_rcv+0x10/0x10 [ 70.456145][ C0] __netif_receive_skb+0x2e0/0x650 [ 70.461279][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 70.466396][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 70.472046][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 70.478066][ C0] ? __pfx_lock_release+0x10/0x10 [ 70.483108][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 70.488272][ C0] process_backlog+0x662/0x15b0 [ 70.493133][ C0] ? process_backlog+0x33b/0x15b0 [ 70.498200][ C0] ? __pfx_process_backlog+0x10/0x10 [ 70.503579][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 70.509602][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 70.515976][ C0] __napi_poll+0xcb/0x490 [ 70.520299][ C0] net_rx_action+0x89b/0x1240 [ 70.525145][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 70.530288][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 70.536372][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 70.542733][ C0] handle_softirqs+0x2c4/0x970 [ 70.547554][ C0] ? do_softirq+0x11b/0x1e0 [ 70.552077][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 70.557421][ C0] do_softirq+0x11b/0x1e0 [ 70.561768][ C0] [ 70.564767][ C0] [ 70.567703][ C0] ? __pfx_do_softirq+0x10/0x10 [ 70.572545][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 70.578228][ C0] ? rcu_is_watching+0x15/0xb0 [ 70.583012][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 70.588275][ C0] ? nsim_dev_trap_report_work+0x75d/0xaa0 [ 70.594109][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 70.599884][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 70.605112][ C0] ? nsim_dev_trap_report_work+0x6a7/0xaa0 [ 70.610910][ C0] nsim_dev_trap_report_work+0x75d/0xaa0 [ 70.616629][ C0] ? process_scheduled_works+0x945/0x1830 [ 70.622375][ C0] process_scheduled_works+0xa2c/0x1830 [ 70.627992][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 70.633994][ C0] ? assign_work+0x364/0x3d0 [ 70.638639][ C0] worker_thread+0x86d/0xd40 [ 70.643263][ C0] ? __kthread_parkme+0x169/0x1d0 [ 70.648335][ C0] ? __pfx_worker_thread+0x10/0x10 [ 70.653458][ C0] kthread+0x2f0/0x390 [ 70.657558][ C0] ? __pfx_worker_thread+0x10/0x10 [ 70.662688][ C0] ? __pfx_kthread+0x10/0x10 [ 70.667336][ C0] ret_from_fork+0x4b/0x80 [ 70.671771][ C0] ? __pfx_kthread+0x10/0x10 [ 70.676394][ C0] ret_from_fork_asm+0x1a/0x30 [ 70.681179][ C0] [ 70.684185][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 70.691444][ C0] CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.10.0-syzkaller-12610-g743ff02152bc #0 [ 70.701575][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 70.711613][ C0] Workqueue: events nsim_dev_trap_report_work [ 70.717681][ C0] Call Trace: [ 70.720941][ C0] [ 70.723764][ C0] dump_stack_lvl+0x241/0x360 [ 70.728430][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 70.733608][ C0] ? __pfx__printk+0x10/0x10 [ 70.738197][ C0] ? vscnprintf+0x5d/0x90 [ 70.742529][ C0] panic+0x349/0x860 [ 70.746426][ C0] ? __warn+0x172/0x4e0 [ 70.750573][ C0] ? __pfx_panic+0x10/0x10 [ 70.754989][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 70.759928][ C0] __warn+0x346/0x4e0 [ 70.763897][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 70.769434][ C0] report_bug+0x2b3/0x500 [ 70.773752][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 70.779290][ C0] handle_bug+0x3e/0x70 [ 70.783439][ C0] exc_invalid_op+0x1a/0x50 [ 70.787934][ C0] asm_exc_invalid_op+0x1a/0x20 [ 70.792777][ C0] RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 [ 70.798922][ C0] Code: 00 17 40 8c e8 67 97 a5 fc 90 0f 0b 90 90 eb 99 e8 1b 89 e3 fc c6 05 76 7d 31 0b 01 90 48 c7 c7 60 17 40 8c e8 47 97 a5 fc 90 <0f> 0b 90 90 e9 76 ff ff ff e8 f8 88 e3 fc c6 05 50 7d 31 0b 01 90 [ 70.818607][ C0] RSP: 0018:ffffc900000076e0 EFLAGS: 00010246 [ 70.824671][ C0] RAX: b72359b2da0c4a00 RBX: ffff8880213d1864 RCX: ffff8880176cda00 [ 70.832632][ C0] RDX: 0000000080000102 RSI: 0000000000000000 RDI: 0000000000000000 [ 70.840678][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 70.848640][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802b3dac00 [ 70.856603][ C0] R13: ffff8880213d1864 R14: ffff88802b3dac00 R15: ffff888077daa118 [ 70.864574][ C0] ? __warn_printk+0x292/0x360 [ 70.869361][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 70.874216][ C0] j1939_tp_recv+0x8ae/0x1050 [ 70.878895][ C0] j1939_can_recv+0x732/0xb20 [ 70.883575][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 70.888771][ C0] ? __lock_acquire+0x137a/0x2040 [ 70.893790][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 70.898976][ C0] can_rcv_filter+0x359/0x7f0 [ 70.903654][ C0] ? can_receive+0x1cd/0x470 [ 70.908235][ C0] can_receive+0x31c/0x470 [ 70.912648][ C0] can_rcv+0x144/0x260 [ 70.916712][ C0] ? __pfx_can_rcv+0x10/0x10 [ 70.921293][ C0] __netif_receive_skb+0x2e0/0x650 [ 70.926413][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 70.931449][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 70.937090][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 70.943079][ C0] ? __pfx_lock_release+0x10/0x10 [ 70.948105][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 70.953229][ C0] process_backlog+0x662/0x15b0 [ 70.958085][ C0] ? process_backlog+0x33b/0x15b0 [ 70.963111][ C0] ? __pfx_process_backlog+0x10/0x10 [ 70.968391][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 70.974370][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 70.980697][ C0] __napi_poll+0xcb/0x490 [ 70.985040][ C0] net_rx_action+0x89b/0x1240 [ 70.989725][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 70.994830][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 71.000813][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 71.007138][ C0] handle_softirqs+0x2c4/0x970 [ 71.011898][ C0] ? do_softirq+0x11b/0x1e0 [ 71.016401][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 71.021788][ C0] do_softirq+0x11b/0x1e0 [ 71.026110][ C0] [ 71.029026][ C0] [ 71.032070][ C0] ? __pfx_do_softirq+0x10/0x10 [ 71.036942][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 71.042588][ C0] ? rcu_is_watching+0x15/0xb0 [ 71.047355][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 71.052648][ C0] ? nsim_dev_trap_report_work+0x75d/0xaa0 [ 71.058475][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 71.064311][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 71.069524][ C0] ? nsim_dev_trap_report_work+0x6a7/0xaa0 [ 71.075354][ C0] nsim_dev_trap_report_work+0x75d/0xaa0 [ 71.081026][ C0] ? process_scheduled_works+0x945/0x1830 [ 71.086768][ C0] process_scheduled_works+0xa2c/0x1830 [ 71.092339][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 71.098338][ C0] ? assign_work+0x364/0x3d0 [ 71.102949][ C0] worker_thread+0x86d/0xd40 [ 71.107569][ C0] ? __kthread_parkme+0x169/0x1d0 [ 71.112612][ C0] ? __pfx_worker_thread+0x10/0x10 [ 71.117737][ C0] kthread+0x2f0/0x390 [ 71.121816][ C0] ? __pfx_worker_thread+0x10/0x10 [ 71.127015][ C0] ? __pfx_kthread+0x10/0x10 [ 71.131607][ C0] ret_from_fork+0x4b/0x80 [ 71.136021][ C0] ? __pfx_kthread+0x10/0x10 [ 71.140609][ C0] ret_from_fork_asm+0x1a/0x30 [ 71.145380][ C0] [ 71.148590][ C0] Kernel Offset: disabled [ 71.152958][ C0] Rebooting in 86400 seconds..