./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3869340075 <...> Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. execve("./syz-executor3869340075", ["./syz-executor3869340075"], 0x7ffc7221ae00 /* 10 vars */) = 0 brk(NULL) = 0x555555960000 brk(0x555555960c40) = 0x555555960c40 arch_prctl(ARCH_SET_FS, 0x555555960300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3869340075", 4096) = 28 brk(0x555555981c40) = 0x555555981c40 brk(0x555555982000) = 0x555555982000 mprotect(0x7f6de5fb3000, 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./strace-static-x86_64: Process 5083 attached , child_tidptr=0x5555559605d0) = 5083 [pid 5083] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] setsid() = 1 [pid 5083] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5083] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5083] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5083] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5083] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5083] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5083] unshare(CLONE_NEWNS) = 0 [pid 5083] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5083] unshare(CLONE_NEWIPC) = 0 [pid 5083] unshare(CLONE_NEWCGROUP) = 0 [pid 5083] unshare(CLONE_NEWUTS) = 0 [pid 5083] unshare(CLONE_SYSVSEM) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "16777216", 8) = 8 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "536870912", 9) = 9 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1024", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "8192", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1024", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1024", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5083] close(3) = 0 [pid 5083] getpid() = 1 [pid 5083] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c 41 5d 41 5e e9 f8 1a 70 f9 e8 f3 1a 70 f9 48 89 [ 80.250719][ T5083] RSP: 0018:ffffc90003c7f6f0 EFLAGS: 00010286 [ 80.256874][ T5083] RAX: 0000000000000000 RBX: ffff88807a154000 RCX: 0000000000000000 [ 80.265965][ T5083] RDX: ffff88802059d7c0 RSI: ffffffff814c3dc7 RDI: 0000000000000001 [ 80.274064][ T5083] RBP: ffff88801ce2e000 R08: 0000000000000001 R09: 0000000000000000 [ 80.282234][ T5083] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801ce2e0f0 [ 80.290297][ T5083] R13: ffff88807a154370 R14: ffff88801ce2e000 R15: 000000000000000e [ 80.298379][ T5083] FS: 0000555555960300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 80.307541][ T5083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.314246][ T5083] CR2: 0000000020001000 CR3: 0000000079e58000 CR4: 00000000003506f0 [ 80.322272][ T5083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.330339][ T5083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.338411][ T5083] Call Trace: [ 80.341717][ T5083] [ 80.344723][ T5083] __skb_gso_segment+0x3eb/0x6e0 [ 80.349719][ T5083] validate_xmit_skb+0x655/0xeb0 [ 80.354785][ T5083] validate_xmit_skb_list+0xc0/0x130 [ 80.360133][ T5083] sch_direct_xmit+0x3d5/0xc30 [ 80.364998][ T5083] ? lock_release+0x780/0x780 [ 80.369726][ T5083] ? lock_release+0x780/0x780 [ 80.375453][ T5083] ? dev_watchdog+0x9a0/0x9a0 [ 80.380199][ T5083] ? do_raw_spin_trylock+0xb4/0x180 [ 80.385524][ T5083] ? do_raw_spin_lock+0x290/0x2b0 [ 80.390609][ T5083] __dev_queue_xmit+0x1670/0x3db0 [ 80.395754][ T5083] ? netdev_core_pick_tx+0x350/0x350 [ 80.401193][ T5083] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 80.411178][ T5083] ? packet_rcv_spkt+0x620/0x620 [ 80.416284][ T5083] packet_sendmsg+0x33aa/0x55d0 [ 80.421203][ T5083] ? aa_sk_perm+0x31d/0xb10 [ 80.425800][ T5083] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 80.431866][ T5083] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 80.437864][ T5083] ? aa_af_perm+0x240/0x240 [ 80.442438][ T5083] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 80.447837][ T5083] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 80.453821][ T5083] sock_sendmsg+0xde/0x190 [ 80.458345][ T5083] __sys_sendto+0x23a/0x340 [ 80.462906][ T5083] ? __ia32_sys_getpeername+0xb0/0xb0 [ 80.468405][ T5083] ? do_raw_spin_lock+0x124/0x2b0 [ 80.473526][ T5083] ? ptrace_notify+0xfe/0x140 [ 80.478313][ T5083] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.483692][ T5083] ? lockdep_hardirqs_on+0x7d/0x100 [ 80.489006][ T5083] __x64_sys_sendto+0xe1/0x1b0 [ 80.493836][ T5083] ? syscall_trace_enter.constprop.0+0xb0/0x250 [ 80.500196][ T5083] do_syscall_64+0x39/0xb0 [ 80.504749][ T5083] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.510699][ T5083] RIP: 0033:0x7f6de5f3f529 [ 80.515292][ T5083] 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 [ 80.534988][ T5083] RSP: 002b:00007ffcd8f02c08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 80.543427][ T5083] RAX: ffffffffffffffda RBX: 00007ffcd8f02c28 RCX: 00007f6de5f3f529 [ 80.551533][ T5083] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.559613][ T5083] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 80.567713][ T5083] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffcd8f02c30 [ 80.575763][ T5083] R13: 00007ffcd8f02c50 R14: 0000000000000000 R15: 0000000000000000 [ 80.583969][ T5083] [ 80.587093][ T5083] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 80.594417][ T5083] CPU: 0 PID: 5083 Comm: syz-executor386 Not tainted 6.2.0-syzkaller-10827-g489fa31ea873 #0 [ 80.604538][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 80.614621][ T5083] Call Trace: [ 80.617923][ T5083] [ 80.620866][ T5083] dump_stack_lvl+0xd9/0x150 [ 80.625509][ T5083] panic+0x61b/0x6c0 [ 80.629433][ T5083] ? panic_smp_self_stop+0x90/0x90 [ 80.634571][ T5083] ? show_trace_log_lvl+0x285/0x390 [ 80.639814][ T5083] ? skb_warn_bad_offload+0x119/0x230 [ 80.645230][ T5083] check_panic_on_warn+0xb1/0xc0 [ 80.650227][ T5083] __warn+0xf2/0x4f0 [ 80.654152][ T5083] ? skb_warn_bad_offload+0x119/0x230 [ 80.659571][ T5083] report_bug+0x2da/0x500 [ 80.663943][ T5083] handle_bug+0x3c/0x70 [ 80.668120][ T5083] exc_invalid_op+0x18/0x50 [ 80.672650][ T5083] asm_exc_invalid_op+0x1a/0x20 [ 80.677529][ T5083] RIP: 0010:skb_warn_bad_offload+0x119/0x230 [ 80.683531][ T5083] Code: 70 03 00 00 e8 28 1b 70 f9 4c 8d a5 f0 00 00 00 e8 1c 1b 70 f9 4c 89 e9 4c 89 e2 4c 89 f6 48 c7 c7 c0 cf 5c 8b e8 07 90 37 f9 <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 f8 1a 70 f9 e8 f3 1a 70 f9 48 89 [ 80.703175][ T5083] RSP: 0018:ffffc90003c7f6f0 EFLAGS: 00010286 [ 80.709285][ T5083] RAX: 0000000000000000 RBX: ffff88807a154000 RCX: 0000000000000000 [ 80.717281][ T5083] RDX: ffff88802059d7c0 RSI: ffffffff814c3dc7 RDI: 0000000000000001 [ 80.725280][ T5083] RBP: ffff88801ce2e000 R08: 0000000000000001 R09: 0000000000000000 [ 80.733275][ T5083] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801ce2e0f0 [ 80.741268][ T5083] R13: ffff88807a154370 R14: ffff88801ce2e000 R15: 000000000000000e [ 80.749289][ T5083] ? __warn_printk+0x187/0x310 [ 80.754115][ T5083] __skb_gso_segment+0x3eb/0x6e0 [ 80.759108][ T5083] validate_xmit_skb+0x655/0xeb0 [ 80.764095][ T5083] validate_xmit_skb_list+0xc0/0x130 [ 80.769459][ T5083] sch_direct_xmit+0x3d5/0xc30 [ 80.774265][ T5083] ? lock_release+0x780/0x780 [ 80.778975][ T5083] ? lock_release+0x780/0x780 [ 80.783685][ T5083] ? dev_watchdog+0x9a0/0x9a0 [ 80.788399][ T5083] ? do_raw_spin_trylock+0xb4/0x180 [ 80.793655][ T5083] ? do_raw_spin_lock+0x290/0x2b0 [ 80.798753][ T5083] __dev_queue_xmit+0x1670/0x3db0 [ 80.803860][ T5083] ? netdev_core_pick_tx+0x350/0x350 [ 80.809206][ T5083] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 80.815833][ T5083] ? packet_rcv_spkt+0x620/0x620 [ 80.820857][ T5083] packet_sendmsg+0x33aa/0x55d0 [ 80.825773][ T5083] ? aa_sk_perm+0x31d/0xb10 [ 80.830305][ T5083] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 80.836319][ T5083] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 80.842241][ T5083] ? aa_af_perm+0x240/0x240 [ 80.846807][ T5083] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 80.852139][ T5083] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 80.858069][ T5083] sock_sendmsg+0xde/0x190 [ 80.862529][ T5083] __sys_sendto+0x23a/0x340 [ 80.867084][ T5083] ? __ia32_sys_getpeername+0xb0/0xb0 [ 80.872505][ T5083] ? do_raw_spin_lock+0x124/0x2b0 [ 80.877590][ T5083] ? ptrace_notify+0xfe/0x140 [ 80.882570][ T5083] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.887821][ T5083] ? lockdep_hardirqs_on+0x7d/0x100 [ 80.893069][ T5083] __x64_sys_sendto+0xe1/0x1b0 [ 80.897966][ T5083] ? syscall_trace_enter.constprop.0+0xb0/0x250 [ 80.904253][ T5083] do_syscall_64+0x39/0xb0 [ 80.908701][ T5083] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 80.914637][ T5083] RIP: 0033:0x7f6de5f3f529 [ 80.919093][ T5083] 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 [ 80.939091][ T5083] RSP: 002b:00007ffcd8f02c08 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 80.947548][ T5083] RAX: ffffffffffffffda RBX: 00007ffcd8f02c28 RCX: 00007f6de5f3f529 [ 80.955549][ T5083] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 80.963671][ T5083] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 80.971692][ T5083] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffcd8f02c30 [ 80.979774][ T5083] R13: 00007ffcd8f02c50 R14: 0000000000000000 R15: 0000000000000000 [ 80.987805][ T5083] [ 80.991110][ T5083] Kernel Offset: disabled [ 80.995577][ T5083] Rebooting in 86400 seconds..