./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4148702935 <...> Warning: Permanently added '10.128.0.57' (ECDSA) to the list of known hosts. execve("./syz-executor4148702935", ["./syz-executor4148702935"], 0x7ffecc27af90 /* 10 vars */) = 0 brk(NULL) = 0x555556c93000 brk(0x555556c93c40) = 0x555556c93c40 arch_prctl(ARCH_SET_FS, 0x555556c93300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4148702935", 4096) = 28 brk(0x555556cb4c40) = 0x555556cb4c40 brk(0x555556cb5000) = 0x555556cb5000 mprotect(0x7f32f9b93000, 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 5003 attached , child_tidptr=0x555556c935d0) = 5003 [pid 5003] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5003] setsid() = 1 [pid 5003] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5003] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5003] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5003] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5003] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5003] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5003] unshare(CLONE_NEWNS) = 0 [pid 5003] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5003] unshare(CLONE_NEWIPC) = 0 [pid 5003] unshare(CLONE_NEWCGROUP) = 0 [pid 5003] unshare(CLONE_NEWUTS) = 0 [pid 5003] unshare(CLONE_SYSVSEM) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "16777216", 8) = 8 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "536870912", 9) = 9 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "1024", 4) = 4 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "8192", 4) = 4 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "1024", 4) = 4 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "1024", 4) = 4 [pid 5003] close(3) = 0 [pid 5003] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5003] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5003] close(3) = 0 [pid 5003] getpid() = 1 [pid 5003] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 5b 5d 41 5c 41 5d 41 5e e9 b8 39 76 f9 e8 b3 39 76 f9 48 89 [ 66.950246][ T5003] RSP: 0018:ffffc90003abf6b0 EFLAGS: 00010286 [ 66.956367][ T5003] RAX: 0000000000000000 RBX: ffff88802166e000 RCX: 0000000000000000 [ 66.964412][ T5003] RDX: ffff88802c698000 RSI: ffffffff814c03b7 RDI: 0000000000000001 [ 66.972434][ T5003] RBP: ffff888015728000 R08: 0000000000000001 R09: 0000000000000000 [ 66.980493][ T5003] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880157280f0 [ 66.988486][ T5003] R13: ffff88802166e370 R14: ffff888015728000 R15: 000000000000000e [ 66.996694][ T5003] FS: 0000555556c93300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 67.005717][ T5003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.012363][ T5003] CR2: 0000000020001000 CR3: 00000000233c4000 CR4: 00000000003506f0 [ 67.020417][ T5003] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.028410][ T5003] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.036474][ T5003] Call Trace: [ 67.039791][ T5003] [ 67.042714][ T5003] ? __warn+0xe6/0x390 [ 67.046784][ T5003] ? skb_warn_bad_offload+0x119/0x230 [ 67.052645][ T5003] ? report_bug+0x2da/0x500 [ 67.057195][ T5003] ? handle_bug+0x3c/0x70 [ 67.061578][ T5003] ? exc_invalid_op+0x18/0x50 [ 67.066622][ T5003] ? asm_exc_invalid_op+0x1a/0x20 [ 67.071712][ T5003] ? __warn_printk+0x187/0x310 [ 67.076501][ T5003] ? skb_warn_bad_offload+0x119/0x230 [ 67.082028][ T5003] __skb_gso_segment+0x3eb/0x6e0 [ 67.087076][ T5003] validate_xmit_skb+0x69c/0xef0 [ 67.092098][ T5003] validate_xmit_skb_list+0xc0/0x130 [ 67.097412][ T5003] sch_direct_xmit+0x3d5/0xc30 [ 67.102233][ T5003] ? lock_sync+0x190/0x190 [ 67.106673][ T5003] ? lock_sync+0x190/0x190 [ 67.111142][ T5003] ? dev_watchdog+0x8b0/0x8b0 [ 67.115844][ T5003] ? do_raw_spin_trylock+0xb4/0x180 [ 67.121098][ T5003] ? do_raw_spin_lock+0x1f0/0x2b0 [ 67.126153][ T5003] __dev_queue_xmit+0x14d6/0x3b10 [ 67.131250][ T5003] ? netdev_core_pick_tx+0x390/0x390 [ 67.136554][ T5003] ? skb_set_owner_w+0x240/0x450 [ 67.141583][ T5003] ? hash_and_copy_to_iter+0x210/0x210 [ 67.147254][ T5003] ? virtio_net_hdr_to_skb.constprop.0+0x3c0/0x1220 [ 67.153934][ T5003] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 67.160611][ T5003] ? packet_rcv_spkt+0x620/0x620 [ 67.165561][ T5003] packet_xmit+0x260/0x390 [ 67.170027][ T5003] packet_sendmsg+0x347f/0x5030 [ 67.174947][ T5003] ? aa_sk_perm+0x31d/0xb10 [ 67.179470][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 67.185525][ T5003] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 67.191482][ T5003] ? aa_af_perm+0x240/0x240 [ 67.195991][ T5003] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 67.201325][ T5003] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 67.207256][ T5003] sock_sendmsg+0xde/0x190 [ 67.211724][ T5003] __sys_sendto+0x24e/0x350 [ 67.216268][ T5003] ? __ia32_sys_getpeername+0xb0/0xb0 [ 67.221691][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 67.226741][ T5003] ? _raw_spin_lock_irq+0x45/0x50 [ 67.231921][ T5003] ? ptrace_notify+0xfe/0x140 [ 67.236618][ T5003] ? lock_downgrade+0x690/0x690 [ 67.241528][ T5003] ? _raw_spin_unlock_irq+0x23/0x50 [ 67.246751][ T5003] ? lockdep_hardirqs_on+0x7d/0x100 [ 67.252005][ T5003] __x64_sys_sendto+0xe1/0x1b0 [ 67.256789][ T5003] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 67.263128][ T5003] do_syscall_64+0x39/0xb0 [ 67.267558][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.273514][ T5003] RIP: 0033:0x7f32f9b1f529 [ 67.277951][ T5003] 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 [ 67.297676][ T5003] RSP: 002b:00007ffeb69d3098 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 67.306162][ T5003] RAX: ffffffffffffffda RBX: 00007ffeb69d30b8 RCX: 00007f32f9b1f529 [ 67.314194][ T5003] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 67.322506][ T5003] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 67.330748][ T5003] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffeb69d30c0 [ 67.338750][ T5003] R13: 00007ffeb69d30e0 R14: 0000000000000000 R15: 0000000000000000 [ 67.346837][ T5003] [ 67.349905][ T5003] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 67.357351][ T5003] CPU: 0 PID: 5003 Comm: syz-executor414 Not tainted 6.4.0-rc5-syzkaller-00859-g37ff78e977f1 #0 [ 67.367772][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 67.377963][ T5003] Call Trace: [ 67.381341][ T5003] [ 67.384276][ T5003] dump_stack_lvl+0xd9/0x150 [ 67.388864][ T5003] panic+0x686/0x730 [ 67.392778][ T5003] ? panic_smp_self_stop+0xa0/0xa0 [ 67.397895][ T5003] ? show_trace_log_lvl+0x284/0x390 [ 67.403121][ T5003] ? skb_warn_bad_offload+0x119/0x230 [ 67.408511][ T5003] check_panic_on_warn+0xb1/0xc0 [ 67.413467][ T5003] __warn+0xf2/0x390 [ 67.417383][ T5003] ? skb_warn_bad_offload+0x119/0x230 [ 67.422797][ T5003] report_bug+0x2da/0x500 [ 67.427181][ T5003] handle_bug+0x3c/0x70 [ 67.431380][ T5003] exc_invalid_op+0x18/0x50 [ 67.435897][ T5003] asm_exc_invalid_op+0x1a/0x20 [ 67.440766][ T5003] RIP: 0010:skb_warn_bad_offload+0x119/0x230 [ 67.446770][ T5003] Code: 70 03 00 00 e8 e8 39 76 f9 4c 8d a5 f0 00 00 00 e8 dc 39 76 f9 4c 89 e9 4c 89 e2 4c 89 f6 48 c7 c7 40 3f 5e 8b e8 a7 f5 3d f9 <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 b8 39 76 f9 e8 b3 39 76 f9 48 89 [ 67.466501][ T5003] RSP: 0018:ffffc90003abf6b0 EFLAGS: 00010286 [ 67.472586][ T5003] RAX: 0000000000000000 RBX: ffff88802166e000 RCX: 0000000000000000 [ 67.480569][ T5003] RDX: ffff88802c698000 RSI: ffffffff814c03b7 RDI: 0000000000000001 [ 67.488546][ T5003] RBP: ffff888015728000 R08: 0000000000000001 R09: 0000000000000000 [ 67.496617][ T5003] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880157280f0 [ 67.504596][ T5003] R13: ffff88802166e370 R14: ffff888015728000 R15: 000000000000000e [ 67.512594][ T5003] ? __warn_printk+0x187/0x310 [ 67.517437][ T5003] __skb_gso_segment+0x3eb/0x6e0 [ 67.522415][ T5003] validate_xmit_skb+0x69c/0xef0 [ 67.527376][ T5003] validate_xmit_skb_list+0xc0/0x130 [ 67.532681][ T5003] sch_direct_xmit+0x3d5/0xc30 [ 67.537469][ T5003] ? lock_sync+0x190/0x190 [ 67.541905][ T5003] ? lock_sync+0x190/0x190 [ 67.546338][ T5003] ? dev_watchdog+0x8b0/0x8b0 [ 67.551035][ T5003] ? do_raw_spin_trylock+0xb4/0x180 [ 67.556257][ T5003] ? do_raw_spin_lock+0x1f0/0x2b0 [ 67.561309][ T5003] __dev_queue_xmit+0x14d6/0x3b10 [ 67.566358][ T5003] ? netdev_core_pick_tx+0x390/0x390 [ 67.571664][ T5003] ? skb_set_owner_w+0x240/0x450 [ 67.576634][ T5003] ? hash_and_copy_to_iter+0x210/0x210 [ 67.582121][ T5003] ? virtio_net_hdr_to_skb.constprop.0+0x3c0/0x1220 [ 67.590040][ T5003] ? virtio_net_hdr_to_skb.constprop.0+0xa44/0x1220 [ 67.596661][ T5003] ? packet_rcv_spkt+0x620/0x620 [ 67.601623][ T5003] packet_xmit+0x260/0x390 [ 67.606063][ T5003] packet_sendmsg+0x347f/0x5030 [ 67.610951][ T5003] ? aa_sk_perm+0x31d/0xb10 [ 67.615468][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 67.621557][ T5003] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 67.627468][ T5003] ? aa_af_perm+0x240/0x240 [ 67.632077][ T5003] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 67.637375][ T5003] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 67.643308][ T5003] sock_sendmsg+0xde/0x190 [ 67.647772][ T5003] __sys_sendto+0x24e/0x350 [ 67.652299][ T5003] ? __ia32_sys_getpeername+0xb0/0xb0 [ 67.657685][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 67.662729][ T5003] ? _raw_spin_lock_irq+0x45/0x50 [ 67.667784][ T5003] ? ptrace_notify+0xfe/0x140 [ 67.672479][ T5003] ? lock_downgrade+0x690/0x690 [ 67.677356][ T5003] ? _raw_spin_unlock_irq+0x23/0x50 [ 67.682577][ T5003] ? lockdep_hardirqs_on+0x7d/0x100 [ 67.687812][ T5003] __x64_sys_sendto+0xe1/0x1b0 [ 67.692607][ T5003] ? syscall_trace_enter.constprop.0+0xb0/0x1e0 [ 67.698888][ T5003] do_syscall_64+0x39/0xb0 [ 67.703326][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.709245][ T5003] RIP: 0033:0x7f32f9b1f529 [ 67.713673][ T5003] 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 [ 67.733300][ T5003] RSP: 002b:00007ffeb69d3098 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 67.741731][ T5003] RAX: ffffffffffffffda RBX: 00007ffeb69d30b8 RCX: 00007f32f9b1f529 [ 67.749720][ T5003] RDX: 0000000000002378 RSI: 0000000020000080 RDI: 0000000000000003 [ 67.757729][ T5003] RBP: 0000000000000003 R08: 0000000000000000 R09: 00000000000002ff [ 67.765754][ T5003] R10: 0000000004000002 R11: 0000000000000246 R12: 00007ffeb69d30c0 [ 67.773846][ T5003] R13: 00007ffeb69d30e0 R14: 0000000000000000 R15: 0000000000000000 [ 67.781853][ T5003] [ 67.785172][ T5003] Kernel Offset: disabled [ 67.789596][ T5003] Rebooting in 86400 seconds..