./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4188612197 <...> Warning: Permanently added '10.128.0.195' (ED25519) to the list of known hosts. execve("./syz-executor4188612197", ["./syz-executor4188612197"], 0x7ffe80a7b8d0 /* 10 vars */) = 0 brk(NULL) = 0x55558e686000 brk(0x55558e686d00) = 0x55558e686d00 arch_prctl(ARCH_SET_FS, 0x55558e686380) = 0 set_tid_address(0x55558e686650) = 5066 set_robust_list(0x55558e686660, 24) = 0 rseq(0x55558e686ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4188612197", 4096) = 28 getrandom("\x3d\x9c\x11\xfa\x85\xf8\x9f\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558e686d00 brk(0x55558e6a7d00) = 0x55558e6a7d00 brk(0x55558e6a8000) = 0x55558e6a8000 mprotect(0x7ff5cec05000, 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=0x55558e686650) = 5067 ./strace-static-x86_64: Process 5067 attached [pid 5067] set_robust_list(0x55558e686660, 24) = 0 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 e9 09 fc ff ff 44 89 e7 89 ee e8 6f 5d 9d f7 41 39 ec 0f [ 68.477864][ T5067] RSP: 0018:ffffc90003d0ee00 EFLAGS: 00010293 [ 68.484012][ T5067] RAX: ffffffff89f794ae RBX: ffff88802b7765d8 RCX: ffff888022bb1e00 [ 68.492021][ T5067] RDX: 0000000000000000 RSI: 00000000ffffffb6 RDI: 0000000000000000 [ 68.500011][ T5067] RBP: 00000000ffffffb6 R08: ffffffff89f790b2 R09: 1ffffffff1f0d5cd [ 68.508123][ T5067] R10: dffffc0000000000 R11: ffffffff89f78fb0 R12: 0000000000000000 [ 68.516163][ T5067] R13: ffff88802b776500 R14: ffff88802c924000 R15: dffffc0000000000 [ 68.524279][ T5067] FS: 000055558e686380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 68.533248][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.539858][ T5067] CR2: 0000000020010000 CR3: 000000007b9b4000 CR4: 00000000003506f0 [ 68.547883][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.555905][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.563923][ T5067] Call Trace: [ 68.567209][ T5067] [ 68.570140][ T5067] ? __warn+0x163/0x4b0 [ 68.574343][ T5067] ? gre_tap_xmit+0x4ff/0x6e0 [ 68.579031][ T5067] ? report_bug+0x2b3/0x500 [ 68.583606][ T5067] ? gre_tap_xmit+0x4ff/0x6e0 [ 68.588297][ T5067] ? handle_bug+0x3e/0x70 [ 68.592672][ T5067] ? exc_invalid_op+0x1a/0x50 [ 68.597631][ T5067] ? asm_exc_invalid_op+0x1a/0x20 [ 68.602731][ T5067] ? __pfx_gre_tap_xmit+0x10/0x10 [ 68.607767][ T5067] ? gre_tap_xmit+0x102/0x6e0 [ 68.612487][ T5067] ? gre_tap_xmit+0x4fe/0x6e0 [ 68.617176][ T5067] ? gre_tap_xmit+0x4ff/0x6e0 [ 68.621927][ T5067] dev_hard_start_xmit+0x26a/0x790 [ 68.627063][ T5067] sch_direct_xmit+0x2b6/0x5f0 [ 68.631885][ T5067] ? __pfx_sch_direct_xmit+0x10/0x10 [ 68.637195][ T5067] __dev_queue_xmit+0x1912/0x3b10 [ 68.642285][ T5067] ? __dev_queue_xmit+0x2c4/0x3b10 [ 68.647598][ T5067] ? __pfx___dev_queue_xmit+0x10/0x10 [ 68.653653][ T5067] ? netdev_lower_get_next_private_rcu+0x9e/0x100 [ 68.660098][ T5067] ? bond_get_slave_by_id+0x5c8/0x5d0 [ 68.665544][ T5067] ? __pfx_lock_release+0x10/0x10 [ 68.670609][ T5067] ? __pfx_bond_get_slave_by_id+0x10/0x10 [ 68.676382][ T5067] ? bond_xmit_roundrobin_slave_get+0x24c/0x420 [ 68.682694][ T5067] bond_start_xmit+0x1389/0x1c40 [ 68.687628][ T5067] ? bond_start_xmit+0x128/0x1c40 [ 68.692691][ T5067] ? __pfx_bond_start_xmit+0x10/0x10 [ 68.698014][ T5067] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 68.704041][ T5067] ? validate_xmit_xfrm+0xc1/0x1260 [ 68.709274][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.715655][ T5067] ? __pfx_validate_xmit_xfrm+0x10/0x10 [ 68.721337][ T5067] ? validate_xmit_skb+0x5b5/0x1120 [ 68.726523][ T5067] ? kmem_cache_free+0x102/0x2a0 [ 68.731534][ T5067] ? validate_xmit_skb+0xa04/0x1120 [ 68.736747][ T5067] dev_hard_start_xmit+0x26a/0x790 [ 68.741944][ T5067] __dev_queue_xmit+0x19f4/0x3b10 [ 68.746994][ T5067] ? __dev_queue_xmit+0x2c4/0x3b10 [ 68.752321][ T5067] ? skb_partial_csum_set+0x105/0x350 [ 68.757706][ T5067] ? __pfx___dev_queue_xmit+0x10/0x10 [ 68.763127][ T5067] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 68.768686][ T5067] ? packet_parse_headers+0x7bd/0xad0 [ 68.774133][ T5067] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 68.779970][ T5067] ? packet_xmit+0x68/0x330 [ 68.784541][ T5067] packet_sendmsg+0x46a9/0x6130 [ 68.789419][ T5067] ? __pfx___might_resched+0x10/0x10 [ 68.794765][ T5067] ? aa_sk_perm+0x967/0xab0 [ 68.799277][ T5067] ? __pfx_packet_sendmsg+0x10/0x10 [ 68.804535][ T5067] ? __import_iovec+0x361/0x820 [ 68.809508][ T5067] ? aa_sock_msg_perm+0x91/0x160 [ 68.814518][ T5067] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 68.819815][ T5067] ? security_socket_sendmsg+0x87/0xb0 [ 68.825451][ T5067] ? __pfx_packet_sendmsg+0x10/0x10 [ 68.830673][ T5067] __sock_sendmsg+0x221/0x270 [ 68.835416][ T5067] ____sys_sendmsg+0x525/0x7d0 [ 68.840221][ T5067] ? __pfx_____sys_sendmsg+0x10/0x10 [ 68.845653][ T5067] ? do_raw_spin_lock+0x14f/0x370 [ 68.850704][ T5067] __sys_sendmsg+0x2b0/0x3a0 [ 68.855560][ T5067] ? __pfx___sys_sendmsg+0x10/0x10 [ 68.860713][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.867117][ T5067] ? _raw_spin_unlock_irq+0x2e/0x50 [ 68.872371][ T5067] ? ptrace_notify+0x279/0x380 [ 68.877198][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.883646][ T5067] ? do_syscall_64+0x10a/0x240 [ 68.888439][ T5067] ? syscall_trace_enter+0x5f/0x150 [ 68.893696][ T5067] do_syscall_64+0xfb/0x240 [ 68.898217][ T5067] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.904162][ T5067] RIP: 0033:0x7ff5ceb8cc09 [ 68.908585][ T5067] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 68.928242][ T5067] RSP: 002b:00007ffff04c2c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.936886][ T5067] RAX: ffffffffffffffda RBX: 00007ff5cebda3d3 RCX: 00007ff5ceb8cc09 [ 68.944898][ T5067] RDX: 00000000200400c4 RSI: 0000000020000180 RDI: 0000000000000004 [ 68.952913][ T5067] RBP: 00007ffff04c2cc0 R08: 0000000000000001 R09: 0000000000000001 [ 68.960876][ T5067] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffff04c2cd0 [ 68.968912][ T5067] R13: 00007ff5cebda004 R14: 00007ffff04c2cbc R15: 0000000000000003 [ 68.977033][ T5067] [ 68.980134][ T5067] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 68.987417][ T5067] CPU: 0 PID: 5067 Comm: syz-executor418 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 68.997467][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 69.007514][ T5067] Call Trace: [ 69.010780][ T5067] [ 69.013704][ T5067] dump_stack_lvl+0x1e7/0x2e0 [ 69.018371][ T5067] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.023592][ T5067] ? __pfx__printk+0x10/0x10 [ 69.028181][ T5067] ? vscnprintf+0x5d/0x90 [ 69.032591][ T5067] panic+0x349/0x860 [ 69.036475][ T5067] ? __warn+0x172/0x4b0 [ 69.040618][ T5067] ? __pfx_panic+0x10/0x10 [ 69.045045][ T5067] __warn+0x31e/0x4b0 [ 69.049086][ T5067] ? gre_tap_xmit+0x4ff/0x6e0 [ 69.053751][ T5067] report_bug+0x2b3/0x500 [ 69.058093][ T5067] ? gre_tap_xmit+0x4ff/0x6e0 [ 69.062754][ T5067] handle_bug+0x3e/0x70 [ 69.066898][ T5067] exc_invalid_op+0x1a/0x50 [ 69.071392][ T5067] asm_exc_invalid_op+0x1a/0x20 [ 69.076241][ T5067] RIP: 0010:gre_tap_xmit+0x4ff/0x6e0 [ 69.081528][ T5067] Code: 00 4c 89 ef 48 89 ee 48 89 da e8 7c 8f fb ff 31 c0 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 c2 5b 9d f7 90 <0f> 0b 90 e9 09 fc ff ff 44 89 e7 89 ee e8 6f 5d 9d f7 41 39 ec 0f [ 69.101226][ T5067] RSP: 0018:ffffc90003d0ee00 EFLAGS: 00010293 [ 69.107280][ T5067] RAX: ffffffff89f794ae RBX: ffff88802b7765d8 RCX: ffff888022bb1e00 [ 69.115249][ T5067] RDX: 0000000000000000 RSI: 00000000ffffffb6 RDI: 0000000000000000 [ 69.123205][ T5067] RBP: 00000000ffffffb6 R08: ffffffff89f790b2 R09: 1ffffffff1f0d5cd [ 69.131170][ T5067] R10: dffffc0000000000 R11: ffffffff89f78fb0 R12: 0000000000000000 [ 69.139153][ T5067] R13: ffff88802b776500 R14: ffff88802c924000 R15: dffffc0000000000 [ 69.147206][ T5067] ? __pfx_gre_tap_xmit+0x10/0x10 [ 69.152238][ T5067] ? gre_tap_xmit+0x102/0x6e0 [ 69.156894][ T5067] ? gre_tap_xmit+0x4fe/0x6e0 [ 69.161565][ T5067] dev_hard_start_xmit+0x26a/0x790 [ 69.166671][ T5067] sch_direct_xmit+0x2b6/0x5f0 [ 69.171426][ T5067] ? __pfx_sch_direct_xmit+0x10/0x10 [ 69.176699][ T5067] __dev_queue_xmit+0x1912/0x3b10 [ 69.181735][ T5067] ? __dev_queue_xmit+0x2c4/0x3b10 [ 69.186865][ T5067] ? __pfx___dev_queue_xmit+0x10/0x10 [ 69.192226][ T5067] ? netdev_lower_get_next_private_rcu+0x9e/0x100 [ 69.198630][ T5067] ? bond_get_slave_by_id+0x5c8/0x5d0 [ 69.204135][ T5067] ? __pfx_lock_release+0x10/0x10 [ 69.209163][ T5067] ? __pfx_bond_get_slave_by_id+0x10/0x10 [ 69.215089][ T5067] ? bond_xmit_roundrobin_slave_get+0x24c/0x420 [ 69.221366][ T5067] bond_start_xmit+0x1389/0x1c40 [ 69.226328][ T5067] ? bond_start_xmit+0x128/0x1c40 [ 69.231362][ T5067] ? __pfx_bond_start_xmit+0x10/0x10 [ 69.236662][ T5067] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 69.242636][ T5067] ? validate_xmit_xfrm+0xc1/0x1260 [ 69.247816][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 69.254131][ T5067] ? __pfx_validate_xmit_xfrm+0x10/0x10 [ 69.259837][ T5067] ? validate_xmit_skb+0x5b5/0x1120 [ 69.265142][ T5067] ? kmem_cache_free+0x102/0x2a0 [ 69.270104][ T5067] ? validate_xmit_skb+0xa04/0x1120 [ 69.275319][ T5067] dev_hard_start_xmit+0x26a/0x790 [ 69.280439][ T5067] __dev_queue_xmit+0x19f4/0x3b10 [ 69.285471][ T5067] ? __dev_queue_xmit+0x2c4/0x3b10 [ 69.290594][ T5067] ? skb_partial_csum_set+0x105/0x350 [ 69.296019][ T5067] ? __pfx___dev_queue_xmit+0x10/0x10 [ 69.301394][ T5067] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 69.306946][ T5067] ? packet_parse_headers+0x7bd/0xad0 [ 69.312321][ T5067] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 69.318123][ T5067] ? packet_xmit+0x68/0x330 [ 69.322873][ T5067] packet_sendmsg+0x46a9/0x6130 [ 69.327813][ T5067] ? __pfx___might_resched+0x10/0x10 [ 69.333097][ T5067] ? aa_sk_perm+0x967/0xab0 [ 69.337647][ T5067] ? __pfx_packet_sendmsg+0x10/0x10 [ 69.343032][ T5067] ? __import_iovec+0x361/0x820 [ 69.348019][ T5067] ? aa_sock_msg_perm+0x91/0x160 [ 69.352952][ T5067] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 69.358219][ T5067] ? security_socket_sendmsg+0x87/0xb0 [ 69.363684][ T5067] ? __pfx_packet_sendmsg+0x10/0x10 [ 69.368880][ T5067] __sock_sendmsg+0x221/0x270 [ 69.373556][ T5067] ____sys_sendmsg+0x525/0x7d0 [ 69.378318][ T5067] ? __pfx_____sys_sendmsg+0x10/0x10 [ 69.383600][ T5067] ? do_raw_spin_lock+0x14f/0x370 [ 69.388642][ T5067] __sys_sendmsg+0x2b0/0x3a0 [ 69.393249][ T5067] ? __pfx___sys_sendmsg+0x10/0x10 [ 69.398398][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 69.404729][ T5067] ? _raw_spin_unlock_irq+0x2e/0x50 [ 69.409922][ T5067] ? ptrace_notify+0x279/0x380 [ 69.414722][ T5067] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 69.421046][ T5067] ? do_syscall_64+0x10a/0x240 [ 69.425801][ T5067] ? syscall_trace_enter+0x5f/0x150 [ 69.430993][ T5067] do_syscall_64+0xfb/0x240 [ 69.435508][ T5067] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 69.441397][ T5067] RIP: 0033:0x7ff5ceb8cc09 [ 69.445796][ T5067] Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 69.465386][ T5067] RSP: 002b:00007ffff04c2c98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.473782][ T5067] RAX: ffffffffffffffda RBX: 00007ff5cebda3d3 RCX: 00007ff5ceb8cc09 [ 69.481764][ T5067] RDX: 00000000200400c4 RSI: 0000000020000180 RDI: 0000000000000004 [ 69.489831][ T5067] RBP: 00007ffff04c2cc0 R08: 0000000000000001 R09: 0000000000000001 [ 69.497790][ T5067] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffff04c2cd0 [ 69.505748][ T5067] R13: 00007ff5cebda004 R14: 00007ffff04c2cbc R15: 0000000000000003 [ 69.513716][ T5067] [ 69.517014][ T5067] Kernel Offset: disabled [ 69.521428][ T5067] Rebooting in 86400 seconds..