./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2847123635 <...> Warning: Permanently added '10.128.10.4' (ECDSA) to the list of known hosts. execve("./syz-executor2847123635", ["./syz-executor2847123635"], 0x7fff756f39d0 /* 10 vars */) = 0 brk(NULL) = 0x555556455000 brk(0x555556455c40) = 0x555556455c40 arch_prctl(ARCH_SET_FS, 0x555556455300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2847123635", 4096) = 28 brk(0x555556476c40) = 0x555556476c40 brk(0x555556477000) = 0x555556477000 mprotect(0x7f64c4a9c000, 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 5081 attached , child_tidptr=0x5555564555d0) = 5081 [pid 5081] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setsid() = 1 [pid 5081] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5081] unshare(CLONE_NEWNS) = 0 [pid 5081] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5081] unshare(CLONE_NEWIPC) = 0 [pid 5081] unshare(CLONE_NEWCGROUP) = 0 [pid 5081] unshare(CLONE_NEWUTS) = 0 [pid 5081] unshare(CLONE_SYSVSEM) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "16777216", 8) = 8 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "536870912", 9) = 9 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "8192", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5081] close(3) = 0 [pid 5081] getpid() = 1 [pid 5081] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c 41 5d 41 5e e9 88 43 73 f9 e8 83 43 73 f9 48 89 [ 86.771314][ T5081] RSP: 0018:ffffc90003d9f6f0 EFLAGS: 00010286 [ 86.777536][ T5081] RAX: 0000000000000000 RBX: ffff88802b0c2000 RCX: 0000000000000000 [ 86.785618][ T5081] RDX: ffff88801fb93a80 RSI: ffffffff814c2c17 RDI: 0000000000000001 [ 86.793685][ T5081] RBP: ffff8880298f2000 R08: 0000000000000001 R09: 0000000000000000 [ 86.801698][ T5081] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880298f20f0 [ 86.809840][ T5081] R13: ffff88802b0c2370 R14: ffff8880298f2000 R15: 000000000000000e [ 86.817904][ T5081] FS: 0000555556455300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 86.826952][ T5081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.833635][ T5081] CR2: 0000000020001000 CR3: 00000000251c3000 CR4: 00000000003506f0 [ 86.841655][ T5081] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.849744][ T5081] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.857846][ T5081] Call Trace: [ 86.861176][ T5081] [ 86.864253][ T5081] __skb_gso_segment+0x3eb/0x6e0 [ 86.869274][ T5081] validate_xmit_skb+0x655/0xeb0 [ 86.874354][ T5081] validate_xmit_skb_list+0xc0/0x130 [ 86.879729][ T5081] sch_direct_xmit+0x3d5/0xc30 [ 86.884644][ T5081] ? lock_release+0x780/0x780 [ 86.889381][ T5081] ? lock_release+0x780/0x780 [ 86.894164][ T5081] ? dev_watchdog+0x9a0/0x9a0 [ 86.898905][ T5081] ? do_raw_spin_trylock+0xb4/0x180 [ 86.904208][ T5081] ? do_raw_spin_lock+0x220/0x2b0 [ 86.909311][ T5081] __dev_queue_xmit+0x1670/0x3db0 [ 86.914490][ T5081] ? netdev_core_pick_tx+0x350/0x350 [ 86.919946][ T5081] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 86.926671][ T5081] ? packet_rcv_spkt+0x620/0x620 [ 86.931694][ T5081] packet_sendmsg+0x33aa/0x55d0 [ 86.936715][ T5081] ? aa_sk_perm+0x31d/0xb10 [ 86.941294][ T5081] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 86.947397][ T5081] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 86.953404][ T5081] ? aa_af_perm+0x240/0x240 [ 86.958005][ T5081] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 86.963441][ T5081] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 86.969421][ T5081] sock_sendmsg+0xde/0x190 [ 86.973980][ T5081] __sys_sendto+0x23a/0x340 [ 86.978599][ T5081] ? __ia32_sys_getpeername+0xb0/0xb0 [ 86.984117][ T5081] ? do_raw_spin_lock+0x124/0x2b0 [ 86.989238][ T5081] ? ptrace_notify+0xfe/0x140 [ 86.994054][ T5081] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.999328][ T5081] ? lockdep_hardirqs_on+0x7d/0x100 [ 87.004678][ T5081] __x64_sys_sendto+0xe1/0x1b0 [ 87.009513][ T5081] ? syscall_trace_enter.constprop.0+0xb0/0x250 [ 87.015922][ T5081] do_syscall_64+0x39/0xb0 [ 87.020415][ T5081] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 87.026441][ T5081] RIP: 0033:0x7f64c4a28529 [ 87.030914][ T5081] 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 [ 87.050645][ T5081] RSP: 002b:00007ffec1151cd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 87.059169][ T5081] RAX: ffffffffffffffda RBX: 00007ffec1151cf8 RCX: 00007f64c4a28529 [ 87.067257][ T5081] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 87.075352][ T5081] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 87.083441][ T5081] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffec1151d00 [ 87.091484][ T5081] R13: 00007ffec1151d20 R14: 0000000000000000 R15: 0000000000000000 [ 87.099609][ T5081] [ 87.102672][ T5081] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 87.109985][ T5081] CPU: 0 PID: 5081 Comm: syz-executor284 Not tainted 6.2.0-syzkaller-05261-gfd2a55e74a99 #0 [ 87.120187][ T5081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 87.130384][ T5081] Call Trace: [ 87.133705][ T5081] [ 87.136677][ T5081] dump_stack_lvl+0xd9/0x150 [ 87.141329][ T5081] panic+0x61b/0x6c0 [ 87.145279][ T5081] ? panic_smp_self_stop+0x90/0x90 [ 87.150446][ T5081] ? show_trace_log_lvl+0x285/0x390 [ 87.155754][ T5081] ? skb_warn_bad_offload+0x119/0x230 [ 87.161183][ T5081] check_panic_on_warn+0xb1/0xc0 [ 87.166192][ T5081] __warn+0xf2/0x4f0 [ 87.170146][ T5081] ? skb_warn_bad_offload+0x119/0x230 [ 87.175575][ T5081] report_bug+0x2da/0x500 [ 87.179963][ T5081] handle_bug+0x3c/0x70 [ 87.184189][ T5081] exc_invalid_op+0x18/0x50 [ 87.188758][ T5081] asm_exc_invalid_op+0x1a/0x20 [ 87.193660][ T5081] RIP: 0010:skb_warn_bad_offload+0x119/0x230 [ 87.199698][ T5081] Code: 70 03 00 00 e8 b8 43 73 f9 4c 8d a5 f0 00 00 00 e8 ac 43 73 f9 4c 89 e9 4c 89 e2 4c 89 f6 48 c7 c7 c0 1f 5c 8b e8 f7 bf 3a f9 <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 88 43 73 f9 e8 83 43 73 f9 48 89 [ 87.219468][ T5081] RSP: 0018:ffffc90003d9f6f0 EFLAGS: 00010286 [ 87.225584][ T5081] RAX: 0000000000000000 RBX: ffff88802b0c2000 RCX: 0000000000000000 [ 87.233594][ T5081] RDX: ffff88801fb93a80 RSI: ffffffff814c2c17 RDI: 0000000000000001 [ 87.241605][ T5081] RBP: ffff8880298f2000 R08: 0000000000000001 R09: 0000000000000000 [ 87.249634][ T5081] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880298f20f0 [ 87.257664][ T5081] R13: ffff88802b0c2370 R14: ffff8880298f2000 R15: 000000000000000e [ 87.265717][ T5081] ? __warn_printk+0x187/0x310 [ 87.270555][ T5081] __skb_gso_segment+0x3eb/0x6e0 [ 87.275550][ T5081] validate_xmit_skb+0x655/0xeb0 [ 87.280774][ T5081] validate_xmit_skb_list+0xc0/0x130 [ 87.286214][ T5081] sch_direct_xmit+0x3d5/0xc30 [ 87.291036][ T5081] ? lock_release+0x780/0x780 [ 87.295781][ T5081] ? lock_release+0x780/0x780 [ 87.300511][ T5081] ? dev_watchdog+0x9a0/0x9a0 [ 87.305261][ T5081] ? do_raw_spin_trylock+0xb4/0x180 [ 87.310687][ T5081] ? do_raw_spin_lock+0x220/0x2b0 [ 87.315882][ T5081] __dev_queue_xmit+0x1670/0x3db0 [ 87.321000][ T5081] ? netdev_core_pick_tx+0x350/0x350 [ 87.326324][ T5081] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 87.332950][ T5081] ? packet_rcv_spkt+0x620/0x620 [ 87.337962][ T5081] packet_sendmsg+0x33aa/0x55d0 [ 87.342871][ T5081] ? aa_sk_perm+0x31d/0xb10 [ 87.347408][ T5081] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 87.353437][ T5081] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 87.361159][ T5081] ? aa_af_perm+0x240/0x240 [ 87.365710][ T5081] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 87.371021][ T5081] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 87.377122][ T5081] sock_sendmsg+0xde/0x190 [ 87.381567][ T5081] __sys_sendto+0x23a/0x340 [ 87.386115][ T5081] ? __ia32_sys_getpeername+0xb0/0xb0 [ 87.391541][ T5081] ? do_raw_spin_lock+0x124/0x2b0 [ 87.396609][ T5081] ? ptrace_notify+0xfe/0x140 [ 87.401316][ T5081] ? _raw_spin_unlock_irq+0x23/0x50 [ 87.406584][ T5081] ? lockdep_hardirqs_on+0x7d/0x100 [ 87.411821][ T5081] __x64_sys_sendto+0xe1/0x1b0 [ 87.416615][ T5081] ? syscall_trace_enter.constprop.0+0xb0/0x250 [ 87.422977][ T5081] do_syscall_64+0x39/0xb0 [ 87.427543][ T5081] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 87.433472][ T5081] RIP: 0033:0x7f64c4a28529 [ 87.437915][ T5081] 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 [ 87.457549][ T5081] RSP: 002b:00007ffec1151cd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 87.465982][ T5081] RAX: ffffffffffffffda RBX: 00007ffec1151cf8 RCX: 00007f64c4a28529 [ 87.473969][ T5081] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 87.481955][ T5081] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 87.489964][ T5081] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffec1151d00 [ 87.497951][ T5081] R13: 00007ffec1151d20 R14: 0000000000000000 R15: 0000000000000000 [ 87.505990][ T5081] [ 87.509370][ T5081] Kernel Offset: disabled [ 87.513816][ T5081] Rebooting in 86400 seconds..