./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3801902902 <...> Warning: Permanently added '10.128.0.151' (ED25519) to the list of known hosts. execve("./syz-executor3801902902", ["./syz-executor3801902902"], 0x7fff81aee160 /* 10 vars */) = 0 brk(NULL) = 0x5555578fe000 brk(0x5555578fed00) = 0x5555578fed00 arch_prctl(ARCH_SET_FS, 0x5555578fe380) = 0 set_tid_address(0x5555578fe650) = 5235 set_robust_list(0x5555578fe660, 24) = 0 rseq(0x5555578feca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3801902902", 4096) = 28 getrandom("\xec\x5a\x36\xcc\xb8\x0f\x0b\x03", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555578fed00 brk(0x55555791fd00) = 0x55555791fd00 brk(0x555557920000) = 0x555557920000 mprotect(0x7f6a349b4000, 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=0x5555578fe650) = 5236 ./strace-static-x86_64: Process 5236 attached [pid 5236] set_robust_list(0x5555578fe660, 24) = 0 [pid 5236] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setsid() = 1 [pid 5236] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5236] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5236] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5236] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5236] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5236] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5236] unshare(CLONE_NEWNS) = 0 [pid 5236] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5236] unshare(CLONE_NEWIPC) = 0 [pid 5236] unshare(CLONE_NEWCGROUP) = 0 [pid 5236] unshare(CLONE_NEWUTS) = 0 [pid 5236] unshare(CLONE_SYSVSEM) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "16777216", 8) = 8 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "536870912", 9) = 9 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1024", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "8192", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1024", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1024", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5236] close(3) = 0 [pid 5236] getpid() = 1 [pid 5236] 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 [ 108.974413][ C1] RSP: 0018:ffffc900001e7480 EFLAGS: 00010246 [ 108.980565][ C1] RAX: 5c51a9986e62f100 RBX: ffff888029423224 RCX: ffff888018280000 [ 108.988608][ C1] RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000 [ 108.996680][ C1] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101726519a [ 109.004683][ C1] R10: dffffc0000000000 R11: ffffed101726519b R12: ffff88802a90e000 [ 109.012815][ C1] R13: ffff888029423224 R14: ffff88802a90e000 R15: ffff88807b88c318 [ 109.020862][ C1] FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 109.029900][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.036556][ C1] CR2: 00000000200009c0 CR3: 000000007bf7e000 CR4: 00000000003506f0 [ 109.044628][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.052662][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.060728][ C1] Call Trace: [ 109.064302][ C1] [ 109.067303][ C1] ? __warn+0x163/0x4e0 [ 109.071527][ C1] ? refcount_warn_saturate+0x15a/0x1d0 [ 109.077140][ C1] ? report_bug+0x2b3/0x500 [ 109.081675][ C1] ? refcount_warn_saturate+0x15a/0x1d0 [ 109.087421][ C1] ? handle_bug+0x3e/0x70 [ 109.091783][ C1] ? exc_invalid_op+0x1a/0x50 [ 109.096641][ C1] ? asm_exc_invalid_op+0x1a/0x20 [ 109.101708][ C1] ? __warn_printk+0x292/0x360 [ 109.106566][ C1] ? refcount_warn_saturate+0x15a/0x1d0 [ 109.112142][ C1] j1939_xtp_rx_cts+0x54f/0xc70 [ 109.117088][ C1] j1939_tp_recv+0x8ae/0x1050 [ 109.121838][ C1] j1939_can_recv+0x732/0xb20 [ 109.126581][ C1] ? __pfx_j1939_can_recv+0x10/0x10 [ 109.131810][ C1] ? __lock_acquire+0x137a/0x2040 [ 109.136933][ C1] ? __pfx_j1939_can_recv+0x10/0x10 [ 109.142185][ C1] can_rcv_filter+0x359/0x7f0 [ 109.147065][ C1] ? can_receive+0x1cd/0x470 [ 109.151695][ C1] can_receive+0x31c/0x470 [ 109.156198][ C1] can_rcv+0x144/0x260 [ 109.160296][ C1] ? __pfx_can_rcv+0x10/0x10 [ 109.164901][ C1] __netif_receive_skb+0x2e0/0x650 [ 109.170100][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 109.175160][ C1] ? __pfx___netif_receive_skb+0x10/0x10 [ 109.180881][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 109.186960][ C1] ? __pfx_lock_release+0x10/0x10 [ 109.192012][ C1] ? _raw_spin_lock_irq+0xdf/0x120 [ 109.197215][ C1] process_backlog+0x662/0x15b0 [ 109.202114][ C1] ? process_backlog+0x33b/0x15b0 [ 109.207258][ C1] ? __pfx_process_backlog+0x10/0x10 [ 109.212571][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 109.218620][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 109.224989][ C1] __napi_poll+0xcb/0x490 [ 109.229389][ C1] net_rx_action+0x89b/0x1240 [ 109.234118][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 109.239291][ C1] ? rcu_qs+0xf1/0x190 [ 109.243428][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 109.249855][ C1] handle_softirqs+0x2c4/0x970 [ 109.254653][ C1] ? run_ksoftirqd+0xca/0x130 [ 109.259436][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 109.264764][ C1] run_ksoftirqd+0xca/0x130 [ 109.269337][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 109.274497][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 109.279674][ C1] smpboot_thread_fn+0x544/0xa30 [ 109.284660][ C1] ? smpboot_thread_fn+0x4e/0xa30 [ 109.289810][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 109.295298][ C1] kthread+0x2f0/0x390 [ 109.299512][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 109.305006][ C1] ? __pfx_kthread+0x10/0x10 [ 109.309769][ C1] ret_from_fork+0x4b/0x80 [ 109.314222][ C1] ? __pfx_kthread+0x10/0x10 [ 109.318919][ C1] ret_from_fork_asm+0x1a/0x30 [ 109.323730][ C1] [ 109.326811][ C1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 109.334130][ C1] CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.10.0-syzkaller-12610-g743ff02152bc #0 [ 109.344389][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 109.354487][ C1] Call Trace: [ 109.357789][ C1] [ 109.360723][ C1] dump_stack_lvl+0x241/0x360 [ 109.365411][ C1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 109.370616][ C1] ? __pfx__printk+0x10/0x10 [ 109.375209][ C1] ? vscnprintf+0x5d/0x90 [ 109.379541][ C1] panic+0x349/0x860 [ 109.383445][ C1] ? __warn+0x172/0x4e0 [ 109.387623][ C1] ? __pfx_panic+0x10/0x10 [ 109.392093][ C1] ? ret_from_fork_asm+0x1a/0x30 [ 109.397072][ C1] __warn+0x346/0x4e0 [ 109.401054][ C1] ? refcount_warn_saturate+0x15a/0x1d0 [ 109.406605][ C1] report_bug+0x2b3/0x500 [ 109.410931][ C1] ? refcount_warn_saturate+0x15a/0x1d0 [ 109.416568][ C1] handle_bug+0x3e/0x70 [ 109.420725][ C1] exc_invalid_op+0x1a/0x50 [ 109.425234][ C1] asm_exc_invalid_op+0x1a/0x20 [ 109.430090][ C1] RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 [ 109.436259][ C1] 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 [ 109.455898][ C1] RSP: 0018:ffffc900001e7480 EFLAGS: 00010246 [ 109.462014][ C1] RAX: 5c51a9986e62f100 RBX: ffff888029423224 RCX: ffff888018280000 [ 109.470010][ C1] RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000 [ 109.477992][ C1] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101726519a [ 109.485979][ C1] R10: dffffc0000000000 R11: ffffed101726519b R12: ffff88802a90e000 [ 109.493978][ C1] R13: ffff888029423224 R14: ffff88802a90e000 R15: ffff88807b88c318 [ 109.501972][ C1] ? __warn_printk+0x292/0x360 [ 109.506868][ C1] j1939_xtp_rx_cts+0x54f/0xc70 [ 109.511736][ C1] j1939_tp_recv+0x8ae/0x1050 [ 109.516440][ C1] j1939_can_recv+0x732/0xb20 [ 109.521210][ C1] ? __pfx_j1939_can_recv+0x10/0x10 [ 109.526478][ C1] ? __lock_acquire+0x137a/0x2040 [ 109.531516][ C1] ? __pfx_j1939_can_recv+0x10/0x10 [ 109.536737][ C1] can_rcv_filter+0x359/0x7f0 [ 109.541448][ C1] ? can_receive+0x1cd/0x470 [ 109.546133][ C1] can_receive+0x31c/0x470 [ 109.550565][ C1] can_rcv+0x144/0x260 [ 109.554634][ C1] ? __pfx_can_rcv+0x10/0x10 [ 109.559230][ C1] __netif_receive_skb+0x2e0/0x650 [ 109.564345][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 109.569465][ C1] ? __pfx___netif_receive_skb+0x10/0x10 [ 109.575092][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 109.581099][ C1] ? __pfx_lock_release+0x10/0x10 [ 109.586147][ C1] ? _raw_spin_lock_irq+0xdf/0x120 [ 109.591309][ C1] process_backlog+0x662/0x15b0 [ 109.596179][ C1] ? process_backlog+0x33b/0x15b0 [ 109.601238][ C1] ? __pfx_process_backlog+0x10/0x10 [ 109.606702][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 109.612701][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 109.619043][ C1] __napi_poll+0xcb/0x490 [ 109.623379][ C1] net_rx_action+0x89b/0x1240 [ 109.628077][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 109.633220][ C1] ? rcu_qs+0xf1/0x190 [ 109.637309][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 109.643652][ C1] handle_softirqs+0x2c4/0x970 [ 109.648430][ C1] ? run_ksoftirqd+0xca/0x130 [ 109.653122][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 109.658426][ C1] run_ksoftirqd+0xca/0x130 [ 109.662939][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 109.668067][ C1] ? __pfx_run_ksoftirqd+0x10/0x10 [ 109.673208][ C1] smpboot_thread_fn+0x544/0xa30 [ 109.678153][ C1] ? smpboot_thread_fn+0x4e/0xa30 [ 109.683188][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 109.688660][ C1] kthread+0x2f0/0x390 [ 109.692748][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 109.698250][ C1] ? __pfx_kthread+0x10/0x10 [ 109.702857][ C1] ret_from_fork+0x4b/0x80 [ 109.707297][ C1] ? __pfx_kthread+0x10/0x10 [ 109.711908][ C1] ret_from_fork_asm+0x1a/0x30 [ 109.716699][ C1] [ 109.719888][ C1] Kernel Offset: disabled [ 109.724254][ C1] Rebooting in 86400 seconds..