./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4169159206 <...> Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts. execve("./syz-executor4169159206", ["./syz-executor4169159206"], 0x7ffeaac28ad0 /* 10 vars */) = 0 brk(NULL) = 0x555557281000 brk(0x555557281c40) = 0x555557281c40 arch_prctl(ARCH_SET_FS, 0x555557281300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4169159206", 4096) = 28 brk(0x5555572a2c40) = 0x5555572a2c40 brk(0x5555572a3000) = 0x5555572a3000 mprotect(0x7f0c72489000, 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=0x5555572815d0) = 5002 ./strace-static-x86_64: Process 5002 attached [pid 5002] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5002] setsid() = 1 [pid 5002] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5002] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5002] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5002] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5002] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5002] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5002] unshare(CLONE_NEWNS) = 0 [pid 5002] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5002] unshare(CLONE_NEWIPC) = 0 [pid 5002] unshare(CLONE_NEWCGROUP) = 0 [pid 5002] unshare(CLONE_NEWUTS) = 0 [pid 5002] unshare(CLONE_SYSVSEM) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "16777216", 8) = 8 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "536870912", 9) = 9 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "1024", 4) = 4 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "8192", 4) = 4 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "1024", 4) = 4 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "1024", 4) = 4 [pid 5002] close(3) = 0 [pid 5002] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5002] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5002] close(3) = 0 [pid 5002] getpid() = 1 [pid 5002] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c 41 5d 41 5e e9 e8 95 76 f9 e8 e3 95 76 f9 48 89 [ 60.360485][ T5002] RSP: 0018:ffffc90003a5f6b0 EFLAGS: 00010286 [ 60.366549][ T5002] RAX: 0000000000000000 RBX: ffff88807b7ac000 RCX: 0000000000000000 [ 60.374578][ T5002] RDX: ffff88802176bb80 RSI: ffffffff814c03b7 RDI: 0000000000000001 [ 60.382602][ T5002] RBP: ffff88802c452000 R08: 0000000000000001 R09: 0000000000000000 [ 60.390643][ T5002] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802c4520f0 [ 60.398654][ T5002] R13: ffff88807b7ac370 R14: ffff88802c452000 R15: 000000000000000e [ 60.406732][ T5002] FS: 0000555557281300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 60.415724][ T5002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.422515][ T5002] CR2: 0000000020001000 CR3: 00000000758bf000 CR4: 00000000003506f0 [ 60.430559][ T5002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.438546][ T5002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.447300][ T5002] Call Trace: [ 60.451836][ T5002] [ 60.454762][ T5002] ? __warn+0xe6/0x390 [ 60.458833][ T5002] ? skb_warn_bad_offload+0x119/0x230 [ 60.464259][ T5002] ? report_bug+0x2da/0x500 [ 60.468798][ T5002] ? handle_bug+0x3c/0x70 [ 60.473171][ T5002] ? exc_invalid_op+0x18/0x50 [ 60.477863][ T5002] ? asm_exc_invalid_op+0x1a/0x20 [ 60.482958][ T5002] ? __warn_printk+0x187/0x310 [ 60.487746][ T5002] ? skb_warn_bad_offload+0x119/0x230 [ 60.493170][ T5002] __skb_gso_segment+0x3eb/0x6e0 [ 60.498132][ T5002] validate_xmit_skb+0x69c/0xef0 [ 60.503126][ T5002] validate_xmit_skb_list+0xc0/0x130 [ 60.508433][ T5002] sch_direct_xmit+0x3d5/0xc30 [ 60.513253][ T5002] ? lock_sync+0x190/0x190 [ 60.517690][ T5002] ? lock_sync+0x190/0x190 [ 60.522159][ T5002] ? dev_watchdog+0x8b0/0x8b0 [ 60.526856][ T5002] ? do_raw_spin_trylock+0xb4/0x180 [ 60.532127][ T5002] ? do_raw_spin_lock+0x1f0/0x2b0 [ 60.537196][ T5002] __dev_queue_xmit+0x14d6/0x3b10 [ 60.542304][ T5002] ? netdev_core_pick_tx+0x390/0x390 [ 60.547611][ T5002] ? skb_set_owner_w+0x1b0/0x450 [ 60.552619][ T5002] ? hash_and_copy_to_iter+0x210/0x210 [ 60.558098][ T5002] ? virtio_net_hdr_to_skb.constprop.0+0x3c0/0x1220 [ 60.564812][ T5002] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 60.571490][ T5002] ? packet_rcv_spkt+0x620/0x620 [ 60.576453][ T5002] packet_xmit+0x260/0x390 [ 60.580915][ T5002] packet_sendmsg+0x347f/0x5030 [ 60.585813][ T5002] ? aa_sk_perm+0x31d/0xb10 [ 60.590374][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.596399][ T5002] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 60.602335][ T5002] ? aa_af_perm+0x240/0x240 [ 60.606856][ T5002] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 60.612196][ T5002] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 60.618123][ T5002] sock_sendmsg+0xde/0x190 [ 60.622594][ T5002] __sys_sendto+0x23a/0x340 [ 60.627115][ T5002] ? __ia32_sys_getpeername+0xb0/0xb0 [ 60.632542][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 60.637597][ T5002] ? _raw_spin_lock_irq+0x45/0x50 [ 60.642749][ T5002] ? ptrace_notify+0xfe/0x140 [ 60.647463][ T5002] ? lock_downgrade+0x690/0x690 [ 60.652721][ T5002] ? _raw_spin_unlock_irq+0x23/0x50 [ 60.657943][ T5002] ? lockdep_hardirqs_on+0x7d/0x100 [ 60.663222][ T5002] __x64_sys_sendto+0xe1/0x1b0 [ 60.668018][ T5002] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 60.674610][ T5002] do_syscall_64+0x39/0xb0 [ 60.679061][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.685041][ T5002] RIP: 0033:0x7f0c72415529 [ 60.689474][ T5002] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 60.709135][ T5002] RSP: 002b:00007ffe61bb6468 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 60.717603][ T5002] RAX: ffffffffffffffda RBX: 00007ffe61bb6488 RCX: 00007f0c72415529 [ 60.725639][ T5002] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 60.733670][ T5002] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 60.741683][ T5002] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffe61bb6490 [ 60.749669][ T5002] R13: 00007ffe61bb64b0 R14: 0000000000000000 R15: 0000000000000000 [ 60.757793][ T5002] [ 60.760845][ T5002] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 60.768111][ T5002] CPU: 0 PID: 5002 Comm: syz-executor416 Not tainted 6.4.0-rc5-syzkaller-00133-g25041a4c02c7 #0 [ 60.778945][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 60.788993][ T5002] Call Trace: [ 60.792262][ T5002] [ 60.795183][ T5002] dump_stack_lvl+0xd9/0x150 [ 60.799766][ T5002] panic+0x686/0x730 [ 60.803655][ T5002] ? panic_smp_self_stop+0xa0/0xa0 [ 60.808846][ T5002] ? show_trace_log_lvl+0x284/0x390 [ 60.814050][ T5002] ? skb_warn_bad_offload+0x119/0x230 [ 60.819415][ T5002] check_panic_on_warn+0xb1/0xc0 [ 60.824375][ T5002] __warn+0xf2/0x390 [ 60.828298][ T5002] ? skb_warn_bad_offload+0x119/0x230 [ 60.833689][ T5002] report_bug+0x2da/0x500 [ 60.838046][ T5002] handle_bug+0x3c/0x70 [ 60.842210][ T5002] exc_invalid_op+0x18/0x50 [ 60.846718][ T5002] asm_exc_invalid_op+0x1a/0x20 [ 60.851585][ T5002] RIP: 0010:skb_warn_bad_offload+0x119/0x230 [ 60.857581][ T5002] Code: 70 03 00 00 e8 18 96 76 f9 4c 8d a5 f0 00 00 00 e8 0c 96 76 f9 4c 89 e9 4c 89 e2 4c 89 f6 48 c7 c7 00 36 5e 8b e8 d7 51 3e f9 <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 e8 95 76 f9 e8 e3 95 76 f9 48 89 [ 60.877202][ T5002] RSP: 0018:ffffc90003a5f6b0 EFLAGS: 00010286 [ 60.883273][ T5002] RAX: 0000000000000000 RBX: ffff88807b7ac000 RCX: 0000000000000000 [ 60.891248][ T5002] RDX: ffff88802176bb80 RSI: ffffffff814c03b7 RDI: 0000000000000001 [ 60.899222][ T5002] RBP: ffff88802c452000 R08: 0000000000000001 R09: 0000000000000000 [ 60.907283][ T5002] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802c4520f0 [ 60.915258][ T5002] R13: ffff88807b7ac370 R14: ffff88802c452000 R15: 000000000000000e [ 60.923245][ T5002] ? __warn_printk+0x187/0x310 [ 60.928032][ T5002] __skb_gso_segment+0x3eb/0x6e0 [ 60.932999][ T5002] validate_xmit_skb+0x69c/0xef0 [ 60.937950][ T5002] validate_xmit_skb_list+0xc0/0x130 [ 60.943247][ T5002] sch_direct_xmit+0x3d5/0xc30 [ 60.948018][ T5002] ? lock_sync+0x190/0x190 [ 60.952448][ T5002] ? lock_sync+0x190/0x190 [ 60.956875][ T5002] ? dev_watchdog+0x8b0/0x8b0 [ 60.961556][ T5002] ? do_raw_spin_trylock+0xb4/0x180 [ 60.966772][ T5002] ? do_raw_spin_lock+0x1f0/0x2b0 [ 60.971819][ T5002] __dev_queue_xmit+0x14d6/0x3b10 [ 60.976861][ T5002] ? netdev_core_pick_tx+0x390/0x390 [ 60.982151][ T5002] ? skb_set_owner_w+0x1b0/0x450 [ 60.987105][ T5002] ? hash_and_copy_to_iter+0x210/0x210 [ 60.992583][ T5002] ? virtio_net_hdr_to_skb.constprop.0+0x3c0/0x1220 [ 60.999187][ T5002] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 61.005802][ T5002] ? packet_rcv_spkt+0x620/0x620 [ 61.010755][ T5002] packet_xmit+0x260/0x390 [ 61.015186][ T5002] packet_sendmsg+0x347f/0x5030 [ 61.020068][ T5002] ? aa_sk_perm+0x31d/0xb10 [ 61.024579][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.030577][ T5002] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 61.036484][ T5002] ? aa_af_perm+0x240/0x240 [ 61.041000][ T5002] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 61.046291][ T5002] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 61.052199][ T5002] sock_sendmsg+0xde/0x190 [ 61.056622][ T5002] __sys_sendto+0x23a/0x340 [ 61.061146][ T5002] ? __ia32_sys_getpeername+0xb0/0xb0 [ 61.066526][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 61.071569][ T5002] ? _raw_spin_lock_irq+0x45/0x50 [ 61.076617][ T5002] ? ptrace_notify+0xfe/0x140 [ 61.081307][ T5002] ? lock_downgrade+0x690/0x690 [ 61.086174][ T5002] ? _raw_spin_unlock_irq+0x23/0x50 [ 61.091385][ T5002] ? lockdep_hardirqs_on+0x7d/0x100 [ 61.096609][ T5002] __x64_sys_sendto+0xe1/0x1b0 [ 61.101380][ T5002] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 61.107644][ T5002] do_syscall_64+0x39/0xb0 [ 61.112074][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.117996][ T5002] RIP: 0033:0x7f0c72415529 [ 61.122431][ T5002] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 61.142051][ T5002] RSP: 002b:00007ffe61bb6468 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 61.150469][ T5002] RAX: ffffffffffffffda RBX: 00007ffe61bb6488 RCX: 00007f0c72415529 [ 61.158526][ T5002] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 61.166498][ T5002] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 61.174490][ T5002] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffe61bb6490 [ 61.182463][ T5002] R13: 00007ffe61bb64b0 R14: 0000000000000000 R15: 0000000000000000 [ 61.190449][ T5002] [ 61.193618][ T5002] Kernel Offset: disabled [ 61.198012][ T5002] Rebooting in 86400 seconds..