./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2485660762 <...> Warning: Permanently added '10.128.1.98' (ED25519) to the list of known hosts. execve("./syz-executor2485660762", ["./syz-executor2485660762"], 0x7ffc55af56c0 /* 10 vars */) = 0 brk(NULL) = 0x555574bd2000 brk(0x555574bd2d00) = 0x555574bd2d00 arch_prctl(ARCH_SET_FS, 0x555574bd2380) = 0 set_tid_address(0x555574bd2650) = 5224 set_robust_list(0x555574bd2660, 24) = 0 rseq(0x555574bd2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2485660762", 4096) = 28 getrandom("\xbb\x50\xae\x71\x9b\xa7\x21\x49", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555574bd2d00 brk(0x555574bf3d00) = 0x555574bf3d00 brk(0x555574bf4000) = 0x555574bf4000 mprotect(0x7fdd2194e000, 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=0x555574bd2650) = 5225 ./strace-static-x86_64: Process 5225 attached [pid 5225] set_robust_list(0x555574bd2660, 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 [ 64.359656][ C0] RSP: 0018:ffffc900000076e0 EFLAGS: 00010246 [ 64.365748][ C0] RAX: dd711061a2ce5400 RBX: ffff88802cdac9a4 RCX: ffff8880176d0000 [ 64.373758][ C0] RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.381780][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 64.389821][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802c3acc00 [ 64.397842][ C0] R13: ffff88802cdac9a4 R14: ffff88802c3acc00 R15: ffff888077e96418 [ 64.405827][ C0] FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 [ 64.414881][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.421500][ C0] CR2: 000000002000f000 CR3: 000000002d58c000 CR4: 00000000003506f0 [ 64.429502][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.437495][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.445518][ C0] Call Trace: [ 64.448826][ C0] [ 64.451663][ C0] ? __warn+0x163/0x4e0 [ 64.455805][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 64.461388][ C0] ? report_bug+0x2b3/0x500 [ 64.465907][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 64.471502][ C0] ? handle_bug+0x3e/0x70 [ 64.475845][ C0] ? exc_invalid_op+0x1a/0x50 [ 64.480554][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 64.485600][ C0] ? __warn_printk+0x292/0x360 [ 64.490419][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 64.495982][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 64.500899][ C0] j1939_tp_recv+0x8ae/0x1050 [ 64.505603][ C0] j1939_can_recv+0x732/0xb20 [ 64.510356][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 64.515592][ C0] ? __lock_acquire+0x137a/0x2040 [ 64.520687][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 64.525944][ C0] can_rcv_filter+0x359/0x7f0 [ 64.530685][ C0] ? can_receive+0x1cd/0x470 [ 64.535296][ C0] can_receive+0x31c/0x470 [ 64.539753][ C0] can_rcv+0x144/0x260 [ 64.543841][ C0] ? __pfx_can_rcv+0x10/0x10 [ 64.548479][ C0] __netif_receive_skb+0x2e0/0x650 [ 64.553600][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 64.558687][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 64.564334][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.570362][ C0] ? __pfx_lock_release+0x10/0x10 [ 64.575451][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 64.580621][ C0] process_backlog+0x662/0x15b0 [ 64.585494][ C0] ? process_backlog+0x33b/0x15b0 [ 64.590573][ C0] ? __pfx_process_backlog+0x10/0x10 [ 64.595872][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.601981][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.608439][ C0] __napi_poll+0xcb/0x490 [ 64.612852][ C0] net_rx_action+0x89b/0x1240 [ 64.617532][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 64.622682][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.628766][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 64.635138][ C0] handle_softirqs+0x2c4/0x970 [ 64.640004][ C0] ? do_softirq+0x11b/0x1e0 [ 64.644612][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 64.649942][ C0] do_softirq+0x11b/0x1e0 [ 64.654303][ C0] [ 64.657226][ C0] [ 64.660184][ C0] ? __pfx_do_softirq+0x10/0x10 [ 64.665066][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 64.670740][ C0] ? rcu_is_watching+0x15/0xb0 [ 64.675520][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 64.680815][ C0] ? dev_hard_start_xmit+0x773/0x7e0 [ 64.686142][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 64.691299][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 64.697043][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 64.702196][ C0] __dev_queue_xmit+0x1763/0x3e90 [ 64.707254][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 64.712422][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 64.717882][ C0] ? mark_lock+0x9a/0x350 [ 64.722233][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 64.728253][ C0] ? __ipv6_neigh_lookup_noref+0x59f/0x730 [ 64.734079][ C0] ? ip6_finish_output2+0xdb6/0x1680 [ 64.739410][ C0] ip6_finish_output2+0xfc2/0x1680 [ 64.744560][ C0] ? ip6_finish_output2+0x712/0x1680 [ 64.749953][ C0] ? __pfx_ip6_finish_output2+0x10/0x10 [ 64.755535][ C0] ? ip6_mtu+0x81/0x3f0 [ 64.759749][ C0] ip6_finish_output+0x41e/0x810 [ 64.764729][ C0] NF_HOOK+0x9e/0x430 [ 64.768768][ C0] ? NF_HOOK+0xfa/0x430 [ 64.772945][ C0] ? __pfx_NF_HOOK+0x10/0x10 [ 64.777529][ C0] ? __pfx_dst_output+0x10/0x10 [ 64.782415][ C0] ? icmp6_dst_alloc+0x3aa/0x420 [ 64.787373][ C0] mld_sendpack+0x843/0xdb0 [ 64.791937][ C0] ? mld_sendpack+0x1e8/0xdb0 [ 64.796627][ C0] ? __pfx_mld_sendpack+0x10/0x10 [ 64.801705][ C0] mld_dad_work+0x44/0x500 [ 64.806140][ C0] ? process_scheduled_works+0x945/0x1830 [ 64.811897][ C0] process_scheduled_works+0xa2c/0x1830 [ 64.817476][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 64.823510][ C0] ? assign_work+0x364/0x3d0 [ 64.828167][ C0] worker_thread+0x86d/0xd40 [ 64.832785][ C0] ? __kthread_parkme+0x169/0x1d0 [ 64.837845][ C0] ? __pfx_worker_thread+0x10/0x10 [ 64.842972][ C0] kthread+0x2f0/0x390 [ 64.847026][ C0] ? __pfx_worker_thread+0x10/0x10 [ 64.852177][ C0] ? __pfx_kthread+0x10/0x10 [ 64.856784][ C0] ret_from_fork+0x4b/0x80 [ 64.861247][ C0] ? __pfx_kthread+0x10/0x10 [ 64.865854][ C0] ret_from_fork_asm+0x1a/0x30 [ 64.870700][ C0] [ 64.873829][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 64.881105][ C0] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.10.0-syzkaller-12610-g743ff02152bc #0 [ 64.891251][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 64.901301][ C0] Workqueue: mld mld_dad_work [ 64.905984][ C0] Call Trace: [ 64.909254][ C0] [ 64.912093][ C0] dump_stack_lvl+0x241/0x360 [ 64.916768][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.921958][ C0] ? __pfx__printk+0x10/0x10 [ 64.926544][ C0] ? vscnprintf+0x5d/0x90 [ 64.930869][ C0] panic+0x349/0x860 [ 64.934754][ C0] ? __warn+0x172/0x4e0 [ 64.938901][ C0] ? __pfx_panic+0x10/0x10 [ 64.943313][ C0] ? ret_from_fork_asm+0x1a/0x30 [ 64.948257][ C0] __warn+0x346/0x4e0 [ 64.952231][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 64.957780][ C0] report_bug+0x2b3/0x500 [ 64.962102][ C0] ? refcount_warn_saturate+0x15a/0x1d0 [ 64.967641][ C0] handle_bug+0x3e/0x70 [ 64.971789][ C0] exc_invalid_op+0x1a/0x50 [ 64.976287][ C0] asm_exc_invalid_op+0x1a/0x20 [ 64.981133][ C0] RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 [ 64.987284][ 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 [ 65.006907][ C0] RSP: 0018:ffffc900000076e0 EFLAGS: 00010246 [ 65.012992][ C0] RAX: dd711061a2ce5400 RBX: ffff88802cdac9a4 RCX: ffff8880176d0000 [ 65.020961][ C0] RDX: 0000000080000101 RSI: 0000000000000000 RDI: 0000000000000000 [ 65.028928][ C0] RBP: 0000000000000003 R08: ffffffff81559432 R09: 1ffff1101724519a [ 65.036889][ C0] R10: dffffc0000000000 R11: ffffed101724519b R12: ffff88802c3acc00 [ 65.044851][ C0] R13: ffff88802cdac9a4 R14: ffff88802c3acc00 R15: ffff888077e96418 [ 65.052822][ C0] ? __warn_printk+0x292/0x360 [ 65.057589][ C0] j1939_xtp_rx_cts+0x54f/0xc70 [ 65.062446][ C0] j1939_tp_recv+0x8ae/0x1050 [ 65.067119][ C0] j1939_can_recv+0x732/0xb20 [ 65.071799][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 65.077026][ C0] ? __lock_acquire+0x137a/0x2040 [ 65.082051][ C0] ? __pfx_j1939_can_recv+0x10/0x10 [ 65.087238][ C0] can_rcv_filter+0x359/0x7f0 [ 65.091921][ C0] ? can_receive+0x1cd/0x470 [ 65.096509][ C0] can_receive+0x31c/0x470 [ 65.100923][ C0] can_rcv+0x144/0x260 [ 65.104982][ C0] ? __pfx_can_rcv+0x10/0x10 [ 65.109564][ C0] __netif_receive_skb+0x2e0/0x650 [ 65.114668][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 65.119691][ C0] ? __pfx___netif_receive_skb+0x10/0x10 [ 65.125309][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.131290][ C0] ? __pfx_lock_release+0x10/0x10 [ 65.136315][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 65.141433][ C0] process_backlog+0x662/0x15b0 [ 65.146281][ C0] ? process_backlog+0x33b/0x15b0 [ 65.151391][ C0] ? __pfx_process_backlog+0x10/0x10 [ 65.156667][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.162642][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 65.168967][ C0] __napi_poll+0xcb/0x490 [ 65.173296][ C0] net_rx_action+0x89b/0x1240 [ 65.177985][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 65.183091][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.189078][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 65.195500][ C0] handle_softirqs+0x2c4/0x970 [ 65.200267][ C0] ? do_softirq+0x11b/0x1e0 [ 65.204768][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 65.210138][ C0] do_softirq+0x11b/0x1e0 [ 65.214474][ C0] [ 65.217393][ C0] [ 65.220313][ C0] ? __pfx_do_softirq+0x10/0x10 [ 65.225173][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 65.230811][ C0] ? rcu_is_watching+0x15/0xb0 [ 65.235573][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 65.240770][ C0] ? dev_hard_start_xmit+0x773/0x7e0 [ 65.246050][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 65.251157][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 65.256872][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 65.261979][ C0] __dev_queue_xmit+0x1763/0x3e90 [ 65.267008][ C0] ? __dev_queue_xmit+0x2da/0x3e90 [ 65.272119][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 65.277502][ C0] ? mark_lock+0x9a/0x350 [ 65.281829][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 65.287807][ C0] ? __ipv6_neigh_lookup_noref+0x59f/0x730 [ 65.293605][ C0] ? ip6_finish_output2+0xdb6/0x1680 [ 65.298887][ C0] ip6_finish_output2+0xfc2/0x1680 [ 65.303998][ C0] ? ip6_finish_output2+0x712/0x1680 [ 65.309366][ C0] ? __pfx_ip6_finish_output2+0x10/0x10 [ 65.314909][ C0] ? ip6_mtu+0x81/0x3f0 [ 65.319057][ C0] ip6_finish_output+0x41e/0x810 [ 65.323991][ C0] NF_HOOK+0x9e/0x430 [ 65.327965][ C0] ? NF_HOOK+0xfa/0x430 [ 65.332135][ C0] ? __pfx_NF_HOOK+0x10/0x10 [ 65.336752][ C0] ? __pfx_dst_output+0x10/0x10 [ 65.341614][ C0] ? icmp6_dst_alloc+0x3aa/0x420 [ 65.346560][ C0] mld_sendpack+0x843/0xdb0 [ 65.351073][ C0] ? mld_sendpack+0x1e8/0xdb0 [ 65.355743][ C0] ? __pfx_mld_sendpack+0x10/0x10 [ 65.360773][ C0] mld_dad_work+0x44/0x500 [ 65.365192][ C0] ? process_scheduled_works+0x945/0x1830 [ 65.370904][ C0] process_scheduled_works+0xa2c/0x1830 [ 65.376473][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 65.382454][ C0] ? assign_work+0x364/0x3d0 [ 65.387046][ C0] worker_thread+0x86d/0xd40 [ 65.391643][ C0] ? __kthread_parkme+0x169/0x1d0 [ 65.396673][ C0] ? __pfx_worker_thread+0x10/0x10 [ 65.401778][ C0] kthread+0x2f0/0x390 [ 65.405836][ C0] ? __pfx_worker_thread+0x10/0x10 [ 65.410942][ C0] ? __pfx_kthread+0x10/0x10 [ 65.415523][ C0] ret_from_fork+0x4b/0x80 [ 65.419936][ C0] ? __pfx_kthread+0x10/0x10 [ 65.424513][ C0] ret_from_fork_asm+0x1a/0x30 [ 65.429291][ C0] [ 65.432580][ C0] Kernel Offset: disabled [ 65.436918][ C0] Rebooting in 86400 seconds..