./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1190903603 <...> Warning: Permanently added '10.128.1.223' (ED25519) to the list of known hosts. execve("./syz-executor1190903603", ["./syz-executor1190903603"], 0x7ffcc5e58e20 /* 10 vars */) = 0 brk(NULL) = 0x555579c59000 brk(0x555579c59d00) = 0x555579c59d00 arch_prctl(ARCH_SET_FS, 0x555579c59380) = 0 set_tid_address(0x555579c59650) = 5228 set_robust_list(0x555579c59660, 24) = 0 rseq(0x555579c59ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1190903603", 4096) = 28 getrandom("\x77\xf0\x9a\x06\xb2\x20\x06\x0d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555579c59d00 brk(0x555579c7ad00) = 0x555579c7ad00 brk(0x555579c7b000) = 0x555579c7b000 mprotect(0x7f330aa17000, 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=0x555579c59650) = 5229 ./strace-static-x86_64: Process 5229 attached [pid 5229] set_robust_list(0x555579c59660, 24) = 0 [pid 5229] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5229] setsid() = 1 [pid 5229] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5229] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5229] unshare(CLONE_NEWNS) = 0 [pid 5229] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5229] unshare(CLONE_NEWIPC) = 0 [pid 5229] unshare(CLONE_NEWCGROUP) = 0 [pid 5229] unshare(CLONE_NEWUTS) = 0 [pid 5229] unshare(CLONE_SYSVSEM) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "16777216", 8) = 8 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "536870912", 9) = 9 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "8192", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024", 4) = 4 [pid 5229] close(3) = 0 [pid 5229] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5229] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5229] close(3) = 0 [pid 5229] getpid() = 1 [pid 5229] 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 [ 84.819656][ C0] RSP: 0018:ffffc90000157480 EFLAGS: 00010246 [ 84.825765][ C0] RAX: 3ac147dcae93af00 RBX: ffff88802c34c724 RCX: ffff8880176dda00 [ 84.833768][ C0] RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000 [ 84.841752][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 84.849758][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802c630000 [ 84.857775][ C0] R13: ffff88802c34c724 R14: ffff88802c630000 R15: ffff88802ce4a118 [ 84.865781][ C0] FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 84.874739][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.881315][ C0] CR2: 000055d69d27d9f8 CR3: 000000001ff84000 CR4: 00000000003506f0 [ 84.889329][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.897352][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.905373][ C0] Call Trace: [ 84.908667][ C0] [ 84.911610][ C0] ? __warn+0x163/0x4e0 [ 84.915844][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 84.921413][ C0] ? report_bug+0x2b3/0x500 [ 84.925996][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 84.931560][ C0] ? handle_bug+0x3e/0x70 [ 84.936017][ C0] ? exc_invalid_op+0x1a/0x50 [ 84.940714][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 84.945821][ C0] ? __warn_printk+0x292/0x360 [ 84.950610][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 84.956196][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 84.961124][ C0] j1939_tp_recv+0x8ae/0x1050 [ 84.965858][ C0] j1939_can_recv+0x732/0xb20 [ 84.970563][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 84.975805][ C0] ? __lock_acquire+0x137a/0x2040 [ 84.980880][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 84.986115][ C0] can_rcv_filter+0x359/0x7f0 [ 84.990823][ C0] ? can_receive+0x1cd/0x470 [ 84.995452][ C0] can_receive+0x31c/0x470 [ 84.999886][ C0] can_rcv+0x144/0x260 [ 85.003998][ C0] ? __pfx_can_rcv+0x10/0x10 [ 85.008600][ C0] __netif_receive_skb+0x2e0/0x650 [ 85.013801][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 85.018856][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 85.024531][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 85.030534][ C0] ? __pfx_lock_release+0x10/0x10 [ 85.035607][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 85.040781][ C0] process_backlog+0x662/0x15b0 [ 85.045673][ C0] ? process_backlog+0x33b/0x15b0 [ 85.050725][ C0] ? __pfx_process_backlog+0x10/0x10 [ 85.056046][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 85.062091][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 85.068462][ C0] __napi_poll+0xcb/0x490 [ 85.072806][ C0] net_rx_action+0x89b/0x1240 [ 85.077638][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 85.082769][ C0] ? rcu_qs+0xf1/0x190 [ 85.086902][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 85.093371][ C0] handle_softirqs+0x2c4/0x970 [ 85.098164][ C0] ? run_ksoftirqd+0xca/0x130 [ 85.102840][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 85.108176][ C0] run_ksoftirqd+0xca/0x130 [ 85.112700][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 85.117852][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 85.123027][ C0] smpboot_thread_fn+0x544/0xa30 [ 85.128002][ C0] ? smpboot_thread_fn+0x4e/0xa30 [ 85.133074][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 85.138578][ C0] kthread+0x2f0/0x390 [ 85.142679][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 85.148231][ C0] ? __pfx_kthread+0x10/0x10 [ 85.152829][ C0] ret_from_fork+0x4b/0x80 [ 85.157304][ C0] ? __pfx_kthread+0x10/0x10 [ 85.161910][ C0] ret_from_fork_asm+0x1a/0x30 [ 85.166750][ C0] [ 85.169782][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 85.177062][ C0] CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.10.0-syzkaller-12610-g743ff02152bc #0 [ 85.187285][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 85.197329][ C0] Call Trace: [ 85.200600][ C0] [ 85.203534][ C0] dump_stack_lvl+0x241/0x360 [ 85.208229][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.213426][ C0] ? __pfx__printk+0x10/0x10 [ 85.218025][ C0] ? vscnprintf+0x5d/0x90 [ 85.222353][ C0] panic+0x349/0x860 [ 85.226246][ C0] ? __warn+0x172/0x4e0 [ 85.230401][ C0] ? __pfx_panic+0x10/0x10 [ 85.234821][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 85.239764][ C0] __warn+0x346/0x4e0 [ 85.243760][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 85.249321][ C0] report_bug+0x2b3/0x500 [ 85.253650][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 85.259200][ C0] handle_bug+0x3e/0x70 [ 85.263357][ C0] exc_invalid_op+0x1a/0x50 [ 85.267857][ C0] asm_exc_invalid_op+0x1a/0x20 [ 85.272707][ C0] RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 [ 85.278880][ 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 [ 85.298488][ C0] RSP: 0018:ffffc90000157480 EFLAGS: 00010246 [ 85.304560][ C0] RAX: 3ac147dcae93af00 RBX: ffff88802c34c724 RCX: ffff8880176dda00 [ 85.312529][ C0] RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000 [ 85.320497][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 85.328468][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802c630000 [ 85.336434][ C0] R13: ffff88802c34c724 R14: ffff88802c630000 R15: ffff88802ce4a118 [ 85.344411][ C0] ? __warn_printk+0x292/0x360 [ 85.349183][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 85.354044][ C0] j1939_tp_recv+0x8ae/0x1050 [ 85.358723][ C0] j1939_can_recv+0x732/0xb20 [ 85.363410][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 85.368624][ C0] ? __lock_acquire+0x137a/0x2040 [ 85.373652][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 85.378840][ C0] can_rcv_filter+0x359/0x7f0 [ 85.383513][ C0] ? can_receive+0x1cd/0x470 [ 85.388106][ C0] can_receive+0x31c/0x470 [ 85.392519][ C0] can_rcv+0x144/0x260 [ 85.396579][ C0] ? __pfx_can_rcv+0x10/0x10 [ 85.401195][ C0] __netif_receive_skb+0x2e0/0x650 [ 85.406317][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 85.411350][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 85.416987][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 85.422976][ C0] ? __pfx_lock_release+0x10/0x10 [ 85.428005][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 85.433132][ C0] process_backlog+0x662/0x15b0 [ 85.437983][ C0] ? process_backlog+0x33b/0x15b0 [ 85.443022][ C0] ? __pfx_process_backlog+0x10/0x10 [ 85.448298][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 85.454280][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 85.460612][ C0] __napi_poll+0xcb/0x490 [ 85.464970][ C0] net_rx_action+0x89b/0x1240 [ 85.469766][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 85.474885][ C0] ? rcu_qs+0xf1/0x190 [ 85.479056][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 85.485407][ C0] handle_softirqs+0x2c4/0x970 [ 85.490186][ C0] ? run_ksoftirqd+0xca/0x130 [ 85.494883][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 85.500187][ C0] run_ksoftirqd+0xca/0x130 [ 85.504703][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 85.509819][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 85.514930][ C0] smpboot_thread_fn+0x544/0xa30 [ 85.519878][ C0] ? smpboot_thread_fn+0x4e/0xa30 [ 85.524906][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 85.530367][ C0] kthread+0x2f0/0x390 [ 85.534434][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 85.539887][ C0] ? __pfx_kthread+0x10/0x10 [ 85.544487][ C0] ret_from_fork+0x4b/0x80 [ 85.548901][ C0] ? __pfx_kthread+0x10/0x10 [ 85.553480][ C0] ret_from_fork_asm+0x1a/0x30 [ 85.558255][ C0] [ 85.561736][ C0] Kernel Offset: disabled [ 85.566100][ C0] Rebooting in 86400 seconds..