./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3742024251 <...> Warning: Permanently added '10.128.1.134' (ED25519) to the list of known hosts. execve("./syz-executor3742024251", ["./syz-executor3742024251"], 0x7ffda9313730 /* 10 vars */) = 0 brk(NULL) = 0x55556764c000 brk(0x55556764cd00) = 0x55556764cd00 arch_prctl(ARCH_SET_FS, 0x55556764c380) = 0 set_tid_address(0x55556764c650) = 5232 set_robust_list(0x55556764c660, 24) = 0 rseq(0x55556764cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3742024251", 4096) = 28 getrandom("\x70\xdc\x34\x47\x86\x68\xf7\x15", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556764cd00 brk(0x55556766dd00) = 0x55556766dd00 brk(0x55556766e000) = 0x55556766e000 mprotect(0x7f773ca09000, 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=0x55556764c650) = 5233 ./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x55556764c660, 24) = 0 [pid 5233] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setsid() = 1 [pid 5233] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5233] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5233] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5233] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5233] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5233] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5233] unshare(CLONE_NEWNS) = 0 [pid 5233] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5233] unshare(CLONE_NEWIPC) = 0 [pid 5233] unshare(CLONE_NEWCGROUP) = 0 [pid 5233] unshare(CLONE_NEWUTS) = 0 [pid 5233] unshare(CLONE_SYSVSEM) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "16777216", 8) = 8 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "536870912", 9) = 9 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1024", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "8192", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1024", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1024", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5233] close(3) = 0 [pid 5233] getpid() = 1 [pid 5233] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 90 e9 43 ff ff ff e8 48 7e 04 fd 0f b6 1d 34 3d 7f 0b 31 [ 121.751790][ C0] RSP: 0018:ffffc900001577c8 EFLAGS: 00010286 [ 121.757982][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e2c79 [ 121.766036][ C0] RDX: ffff88801cadda00 RSI: ffffffff814e2c86 RDI: 0000000000000001 [ 121.774098][ C0] RBP: ffff88802e405224 R08: 0000000000000001 R09: 0000000000000000 [ 121.782110][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 121.790163][ C0] R13: 0000000000000000 R14: ffff88802e405224 R15: 0000000000000001 [ 121.798241][ C0] FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 121.807287][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.813976][ C0] CR2: 000055772d12ee40 CR3: 000000002853a000 CR4: 0000000000350ef0 [ 121.822009][ C0] Call Trace: [ 121.825380][ C0] [ 121.828348][ C0] ? show_regs+0x8c/0xa0 [ 121.832626][ C0] ? __warn+0xe5/0x3c0 [ 121.836781][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 121.842490][ C0] ? refcount_warn_saturate+0x14a/0x210 [ 121.848122][ C0] ? report_bug+0x3c0/0x580 [ 121.852689][ C0] ? handle_bug+0x3d/0x70 [ 121.857115][ C0] ? exc_invalid_op+0x17/0x50 [ 121.861850][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 121.867079][ C0] ? __warn_printk+0x199/0x350 [ 121.871941][ C0] ? __warn_printk+0x1a6/0x350 [ 121.876798][ C0] ? refcount_warn_saturate+0x14a/0x210 [ 121.882400][ C0] ? refcount_warn_saturate+0x149/0x210 [ 121.888040][ C0] sk_skb_reason_drop+0x183/0x1a0 [ 121.893174][ C0] j1939_session_destroy+0x163/0x460 [ 121.898544][ C0] j1939_xtp_rx_abort_one+0x3f9/0x560 [ 121.904030][ C0] j1939_tp_recv+0xcf8/0xf50 [ 121.908704][ C0] j1939_can_recv+0x78f/0xa50 [ 121.913515][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 121.918795][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 121.923973][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 121.929254][ C0] can_rcv_filter+0x2ab/0x900 [ 121.934064][ C0] can_receive+0x320/0x5c0 [ 121.938541][ C0] ? __pfx_can_rcv+0x10/0x10 [ 121.943221][ C0] can_rcv+0x1e2/0x280 [ 121.947350][ C0] __netif_receive_skb_one_core+0x1b4/0x1e0 [ 121.953365][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 121.959859][ C0] ? process_backlog+0x3f1/0x15f0 [ 121.964985][ C0] ? __pfx_lock_release+0x10/0x10 [ 121.970095][ C0] ? do_raw_spin_lock+0x12d/0x2c0 [ 121.975277][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 121.980737][ C0] ? process_backlog+0x3f1/0x15f0 [ 121.985881][ C0] __netif_receive_skb+0x1d/0x160 [ 121.990986][ C0] process_backlog+0x443/0x15f0 [ 121.995957][ C0] __napi_poll.constprop.0+0xba/0x550 [ 122.001399][ C0] net_rx_action+0xa92/0x1010 [ 122.006180][ C0] ? tmigr_handle_remote+0x153/0xdd0 [ 122.011535][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 122.016753][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 122.022453][ C0] ? run_timer_base+0x119/0x190 [ 122.027532][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.033277][ C0] ? run_timer_base+0x11e/0x190 [ 122.038206][ C0] ? __pfx_run_timer_base+0x10/0x10 [ 122.043538][ C0] handle_softirqs+0x219/0x8f0 [ 122.048394][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.054138][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 122.059498][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.065242][ C0] ? rcu_is_watching+0x12/0xc0 [ 122.070096][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 122.075307][ C0] ? smpboot_thread_fn+0x59d/0xa10 [ 122.080495][ C0] run_ksoftirqd+0x3a/0x60 [ 122.085018][ C0] smpboot_thread_fn+0x664/0xa10 [ 122.090035][ C0] ? __kthread_parkme+0x148/0x220 [ 122.095152][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 122.100667][ C0] kthread+0x2c4/0x3a0 [ 122.104821][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 122.110099][ C0] ? __pfx_kthread+0x10/0x10 [ 122.114798][ C0] ret_from_fork+0x48/0x80 [ 122.119299][ C0] ? __pfx_kthread+0x10/0x10 [ 122.123972][ C0] ret_from_fork_asm+0x1a/0x30 [ 122.128804][ C0] [ 122.131834][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 122.139114][ C0] CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0 [ 122.149370][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 122.159446][ C0] Call Trace: [ 122.162731][ C0] [ 122.165674][ C0] dump_stack_lvl+0x3d/0x1f0 [ 122.170320][ C0] panic+0x6dc/0x7c0 [ 122.174304][ C0] ? __pfx_panic+0x10/0x10 [ 122.178768][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.184443][ C0] ? show_trace_log_lvl+0x363/0x500 [ 122.189713][ C0] ? check_panic_on_warn+0x1f/0xb0 [ 122.194880][ C0] ? refcount_warn_saturate+0x14a/0x210 [ 122.200454][ C0] check_panic_on_warn+0xab/0xb0 [ 122.205447][ C0] __warn+0xf1/0x3c0 [ 122.209390][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.215064][ C0] ? refcount_warn_saturate+0x14a/0x210 [ 122.220643][ C0] report_bug+0x3c0/0x580 [ 122.225015][ C0] handle_bug+0x3d/0x70 [ 122.229252][ C0] exc_invalid_op+0x17/0x50 [ 122.233886][ C0] asm_exc_invalid_op+0x1a/0x20 [ 122.238763][ C0] RIP: 0010:refcount_warn_saturate+0x14a/0x210 [ 122.244950][ C0] Code: ff 89 de e8 58 80 04 fd 84 db 0f 85 66 ff ff ff e8 6b 7e 04 fd c6 05 59 3d 7f 0b 01 90 48 c7 c7 00 ba b0 8b e8 67 d1 c6 fc 90 <0f> 0b 90 90 e9 43 ff ff ff e8 48 7e 04 fd 0f b6 1d 34 3d 7f 0b 31 [ 122.264589][ C0] RSP: 0018:ffffc900001577c8 EFLAGS: 00010286 [ 122.270685][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e2c79 [ 122.278683][ C0] RDX: ffff88801cadda00 RSI: ffffffff814e2c86 RDI: 0000000000000001 [ 122.286681][ C0] RBP: ffff88802e405224 R08: 0000000000000001 R09: 0000000000000000 [ 122.294760][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002 [ 122.302754][ C0] R13: 0000000000000000 R14: ffff88802e405224 R15: 0000000000000001 [ 122.310763][ C0] ? __warn_printk+0x199/0x350 [ 122.315579][ C0] ? __warn_printk+0x1a6/0x350 [ 122.320398][ C0] ? refcount_warn_saturate+0x149/0x210 [ 122.325976][ C0] sk_skb_reason_drop+0x183/0x1a0 [ 122.331038][ C0] j1939_session_destroy+0x163/0x460 [ 122.336382][ C0] j1939_xtp_rx_abort_one+0x3f9/0x560 [ 122.342414][ C0] j1939_tp_recv+0xcf8/0xf50 [ 122.347058][ C0] j1939_can_recv+0x78f/0xa50 [ 122.351783][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 122.357022][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 122.362109][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 122.367352][ C0] can_rcv_filter+0x2ab/0x900 [ 122.372086][ C0] can_receive+0x320/0x5c0 [ 122.376552][ C0] ? __pfx_can_rcv+0x10/0x10 [ 122.381180][ C0] can_rcv+0x1e2/0x280 [ 122.385289][ C0] __netif_receive_skb_one_core+0x1b4/0x1e0 [ 122.391229][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 122.397690][ C0] ? process_backlog+0x3f1/0x15f0 [ 122.402758][ C0] ? __pfx_lock_release+0x10/0x10 [ 122.407842][ C0] ? do_raw_spin_lock+0x12d/0x2c0 [ 122.412904][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 122.418325][ C0] ? process_backlog+0x3f1/0x15f0 [ 122.423399][ C0] __netif_receive_skb+0x1d/0x160 [ 122.428475][ C0] process_backlog+0x443/0x15f0 [ 122.433381][ C0] __napi_poll.constprop.0+0xba/0x550 [ 122.438809][ C0] net_rx_action+0xa92/0x1010 [ 122.443537][ C0] ? tmigr_handle_remote+0x153/0xdd0 [ 122.448869][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 122.454022][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 122.459689][ C0] ? run_timer_base+0x119/0x190 [ 122.464614][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.470284][ C0] ? run_timer_base+0x11e/0x190 [ 122.475186][ C0] ? __pfx_run_timer_base+0x10/0x10 [ 122.480448][ C0] handle_softirqs+0x219/0x8f0 [ 122.485256][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.490930][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 122.496252][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 122.501939][ C0] ? rcu_is_watching+0x12/0xc0 [ 122.506764][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 122.511912][ C0] ? smpboot_thread_fn+0x59d/0xa10 [ 122.517060][ C0] run_ksoftirqd+0x3a/0x60 [ 122.521512][ C0] smpboot_thread_fn+0x664/0xa10 [ 122.526495][ C0] ? __kthread_parkme+0x148/0x220 [ 122.531569][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 122.537077][ C0] kthread+0x2c4/0x3a0 [ 122.541192][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 122.546454][ C0] ? __pfx_kthread+0x10/0x10 [ 122.551088][ C0] ret_from_fork+0x48/0x80 [ 122.555560][ C0] ? __pfx_kthread+0x10/0x10 [ 122.560194][ C0] ret_from_fork_asm+0x1a/0x30 [ 122.565032][ C0] [ 122.568309][ C0] Kernel Offset: disabled [ 122.572687][ C0] Rebooting in 86400 seconds..