./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3129217013 <...> Warning: Permanently added '10.128.1.154' (ED25519) to the list of known hosts. execve("./syz-executor3129217013", ["./syz-executor3129217013"], 0x7fff5bfde600 /* 10 vars */) = 0 brk(NULL) = 0x555555d4e000 brk(0x555555d4ed00) = 0x555555d4ed00 arch_prctl(ARCH_SET_FS, 0x555555d4e380) = 0 set_tid_address(0x555555d4e650) = 5042 set_robust_list(0x555555d4e660, 24) = 0 rseq(0x555555d4eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3129217013", 4096) = 28 getrandom("\x25\xad\x66\xb3\xce\x2c\x37\x48", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d4ed00 brk(0x555555d6fd00) = 0x555555d6fd00 brk(0x555555d70000) = 0x555555d70000 mprotect(0x7f43ea8b2000, 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=0x555555d4e650) = 5043 ./strace-static-x86_64: Process 5043 attached [pid 5043] set_robust_list(0x555555d4e660, 24) = 0 [pid 5043] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5043] setsid() = 1 [pid 5043] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5043] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5043] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5043] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5043] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5043] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5043] unshare(CLONE_NEWNS) = 0 [pid 5043] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5043] unshare(CLONE_NEWIPC) = 0 [pid 5043] unshare(CLONE_NEWCGROUP) = 0 [pid 5043] unshare(CLONE_NEWUTS) = 0 [pid 5043] unshare(CLONE_SYSVSEM) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "16777216", 8) = 8 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "536870912", 9) = 9 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "1024", 4) = 4 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "8192", 4) = 4 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "1024", 4) = 4 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "1024", 4) = 4 [pid 5043] close(3) = 0 [pid 5043] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5043] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5043] close(3) = 0 [pid 5043] getpid() = 1 [pid 5043] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f b6 2d a5 34 87 06 31 ff 89 ee e8 39 11 57 f9 40 84 ed 75 [ 85.175082][ T5043] RSP: 0018:ffffc90003a8f0b8 EFLAGS: 00010293 [ 85.181174][ T5043] RAX: 0000000000000000 RBX: ffff88801cb9c780 RCX: 0000000000000000 [ 85.189195][ T5043] RDX: ffff8880250d8000 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 85.197330][ T5043] RBP: ffff88801cb9c7f4 R08: 0000000000000006 R09: 0000000000000621 [ 85.205363][ T5043] R10: 0000000000000519 R11: 000820aaaaaaaaaa R12: 000000000000061f [ 85.213373][ T5043] R13: 000000000000061f R14: 0000000000000519 R15: 0000000000000621 [ 85.221400][ T5043] FS: 0000555555d4e380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 85.230438][ T5043] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.237088][ T5043] CR2: 0000000020001000 CR3: 00000000739bb000 CR4: 00000000003506f0 [ 85.245116][ T5043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.253108][ T5043] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.261167][ T5043] Call Trace: [ 85.264463][ T5043] [ 85.267428][ T5043] ? show_regs+0x8f/0xa0 [ 85.271703][ T5043] ? __warn+0xe6/0x380 [ 85.275832][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.280986][ T5043] ? report_bug+0x3bc/0x580 [ 85.285667][ T5043] ? handle_bug+0x3c/0x70 [ 85.290049][ T5043] ? exc_invalid_op+0x17/0x40 [ 85.294756][ T5043] ? asm_exc_invalid_op+0x1a/0x20 [ 85.299843][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.305040][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.310197][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.315377][ T5043] ip_do_fragment+0xa1b/0x18b0 [ 85.320200][ T5043] ? ip_fragment.constprop.0+0x230/0x230 [ 85.325922][ T5043] ? ip_frag_next+0xa40/0xa40 [ 85.330641][ T5043] ? slab_free_freelist_hook+0x114/0x1e0 [ 85.336341][ T5043] ip_fragment.constprop.0+0x161/0x230 [ 85.341842][ T5043] __ip_finish_output+0x49a/0x640 [ 85.346919][ T5043] ip_finish_output+0x31/0x310 [ 85.351725][ T5043] ip_output+0x198/0x310 [ 85.356017][ T5043] ip_local_out+0xaf/0x190 [ 85.360481][ T5043] iptunnel_xmit+0x61a/0xa30 [ 85.365136][ T5043] ip_tunnel_xmit+0x1e14/0x3350 [ 85.370062][ T5043] ? print_irqtrace_events+0x228/0x270 [ 85.375626][ T5043] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 85.380964][ T5043] ? skb_mac_gso_segment+0x3d8/0x610 [ 85.386337][ T5043] ? __gre_xmit+0x4f5/0x990 [ 85.390890][ T5043] ipgre_xmit+0x63c/0x910 [ 85.395290][ T5043] dev_hard_start_xmit+0x13d/0x6c0 [ 85.400442][ T5043] __dev_queue_xmit+0x9be/0x3d60 [ 85.406281][ T5043] ? netdev_core_pick_tx+0x390/0x390 [ 85.411603][ T5043] ? skb_partial_csum_set+0x202/0x390 [ 85.417026][ T5043] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 85.423651][ T5043] ? packet_release+0xdc0/0xdc0 [ 85.428557][ T5043] packet_xmit+0x257/0x380 [ 85.433028][ T5043] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 85.439051][ T5043] packet_sendmsg+0x24c7/0x5570 [ 85.443948][ T5043] ? preempt_count_sub+0x150/0x150 [ 85.449115][ T5043] ? rcu_read_lock_held+0x9/0x40 [ 85.454096][ T5043] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 85.460049][ T5043] ? aa_sk_perm+0x2c1/0xae0 [ 85.464617][ T5043] ? rcu_is_watching+0x12/0xb0 [ 85.469419][ T5043] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 85.475386][ T5043] ? aa_af_perm+0x260/0x260 [ 85.479909][ T5043] ? import_ubuf+0x1f5/0x260 [ 85.484549][ T5043] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 85.489893][ T5043] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 85.495855][ T5043] sock_sendmsg+0xd9/0x180 [ 85.500301][ T5043] ____sys_sendmsg+0x6ac/0x940 [ 85.505116][ T5043] ? copy_msghdr_from_user+0x10b/0x160 [ 85.510629][ T5043] ? kernel_sendmsg+0x50/0x50 [ 85.515349][ T5043] ? finish_task_switch.isra.0+0x216/0xc90 [ 85.521183][ T5043] ? __switch_to+0x73d/0x1340 [ 85.525913][ T5043] ___sys_sendmsg+0x135/0x1d0 [ 85.530644][ T5043] ? do_recvmmsg+0x740/0x740 [ 85.535297][ T5043] ? lock_sync+0x190/0x190 [ 85.539754][ T5043] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 85.544970][ T5043] ? __fget_light+0x1fc/0x260 [ 85.549730][ T5043] __sys_sendmsg+0x117/0x1e0 [ 85.554382][ T5043] ? __sys_sendmsg_sock+0x30/0x30 [ 85.559467][ T5043] ? ptrace_notify+0xf4/0x130 [ 85.564201][ T5043] ? _raw_spin_unlock_irq+0x2e/0x50 [ 85.569460][ T5043] ? ptrace_notify+0xf4/0x130 [ 85.574173][ T5043] do_syscall_64+0x38/0xb0 [ 85.578635][ T5043] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 85.584585][ T5043] RIP: 0033:0x7f43ea83a499 [ 85.589035][ T5043] 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 [ 85.608857][ T5043] RSP: 002b:00007ffcb4141ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.617305][ T5043] RAX: ffffffffffffffda RBX: 00007f43ea887390 RCX: 00007f43ea83a499 [ 85.625325][ T5043] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 85.633309][ T5043] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 85.641326][ T5043] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffcb4141cf0 [ 85.649359][ T5043] R13: 00007ffcb4141cc0 R14: 0000000000000001 R15: 00007ffcb4141cf0 [ 85.657405][ T5043] [ 85.660494][ T5043] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 85.667776][ T5043] CPU: 0 PID: 5043 Comm: syz-executor312 Not tainted 6.5.0-rc6-next-20230815-syzkaller #0 [ 85.677681][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 85.687787][ T5043] Call Trace: [ 85.691075][ T5043] [ 85.694027][ T5043] dump_stack_lvl+0xd9/0x1b0 [ 85.698653][ T5043] panic+0x6a6/0x750 [ 85.702584][ T5043] ? panic_smp_self_stop+0xa0/0xa0 [ 85.707729][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.712876][ T5043] check_panic_on_warn+0xab/0xb0 [ 85.717855][ T5043] __warn+0xf2/0x380 [ 85.721804][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.726945][ T5043] report_bug+0x3bc/0x580 [ 85.731315][ T5043] handle_bug+0x3c/0x70 [ 85.735518][ T5043] exc_invalid_op+0x17/0x40 [ 85.740062][ T5043] asm_exc_invalid_op+0x1a/0x20 [ 85.744950][ T5043] RIP: 0010:skb_checksum_help+0x4b5/0x5c0 [ 85.750702][ T5043] Code: f9 40 84 ed 75 dd e8 3a 16 57 f9 31 d2 48 89 de 48 c7 c7 40 b4 a2 8b c6 05 bb 34 87 06 01 e8 22 27 f8 ff eb be e8 1b 16 57 f9 <0f> 0b 0f b6 2d a5 34 87 06 31 ff 89 ee e8 39 11 57 f9 40 84 ed 75 [ 85.770422][ T5043] RSP: 0018:ffffc90003a8f0b8 EFLAGS: 00010293 [ 85.776509][ T5043] RAX: 0000000000000000 RBX: ffff88801cb9c780 RCX: 0000000000000000 [ 85.784492][ T5043] RDX: ffff8880250d8000 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 85.792475][ T5043] RBP: ffff88801cb9c7f4 R08: 0000000000000006 R09: 0000000000000621 [ 85.800459][ T5043] R10: 0000000000000519 R11: 000820aaaaaaaaaa R12: 000000000000061f [ 85.808442][ T5043] R13: 000000000000061f R14: 0000000000000519 R15: 0000000000000621 [ 85.816424][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.821556][ T5043] ? skb_checksum_help+0x4b5/0x5c0 [ 85.826684][ T5043] ip_do_fragment+0xa1b/0x18b0 [ 85.831488][ T5043] ? ip_fragment.constprop.0+0x230/0x230 [ 85.837143][ T5043] ? ip_frag_next+0xa40/0xa40 [ 85.841839][ T5043] ? slab_free_freelist_hook+0x114/0x1e0 [ 85.847510][ T5043] ip_fragment.constprop.0+0x161/0x230 [ 85.852996][ T5043] __ip_finish_output+0x49a/0x640 [ 85.858050][ T5043] ip_finish_output+0x31/0x310 [ 85.862839][ T5043] ip_output+0x198/0x310 [ 85.867111][ T5043] ip_local_out+0xaf/0x190 [ 85.871554][ T5043] iptunnel_xmit+0x61a/0xa30 [ 85.876174][ T5043] ip_tunnel_xmit+0x1e14/0x3350 [ 85.881060][ T5043] ? print_irqtrace_events+0x228/0x270 [ 85.886554][ T5043] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 85.891873][ T5043] ? skb_mac_gso_segment+0x3d8/0x610 [ 85.897191][ T5043] ? __gre_xmit+0x4f5/0x990 [ 85.901727][ T5043] ipgre_xmit+0x63c/0x910 [ 85.906102][ T5043] dev_hard_start_xmit+0x13d/0x6c0 [ 85.911245][ T5043] __dev_queue_xmit+0x9be/0x3d60 [ 85.916217][ T5043] ? netdev_core_pick_tx+0x390/0x390 [ 85.921527][ T5043] ? skb_partial_csum_set+0x202/0x390 [ 85.926934][ T5043] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 85.933547][ T5043] ? packet_release+0xdc0/0xdc0 [ 85.938418][ T5043] packet_xmit+0x257/0x380 [ 85.942852][ T5043] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 85.948786][ T5043] packet_sendmsg+0x24c7/0x5570 [ 85.953690][ T5043] ? preempt_count_sub+0x150/0x150 [ 85.958838][ T5043] ? rcu_read_lock_held+0x9/0x40 [ 85.963799][ T5043] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 85.969729][ T5043] ? aa_sk_perm+0x2c1/0xae0 [ 85.974265][ T5043] ? rcu_is_watching+0x12/0xb0 [ 85.979045][ T5043] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 85.985008][ T5043] ? aa_af_perm+0x260/0x260 [ 85.989537][ T5043] ? import_ubuf+0x1f5/0x260 [ 85.994149][ T5043] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 85.999453][ T5043] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 86.005362][ T5043] sock_sendmsg+0xd9/0x180 [ 86.009803][ T5043] ____sys_sendmsg+0x6ac/0x940 [ 86.014592][ T5043] ? copy_msghdr_from_user+0x10b/0x160 [ 86.020078][ T5043] ? kernel_sendmsg+0x50/0x50 [ 86.024776][ T5043] ? finish_task_switch.isra.0+0x216/0xc90 [ 86.030599][ T5043] ? __switch_to+0x73d/0x1340 [ 86.035302][ T5043] ___sys_sendmsg+0x135/0x1d0 [ 86.040026][ T5043] ? do_recvmmsg+0x740/0x740 [ 86.044664][ T5043] ? lock_sync+0x190/0x190 [ 86.049103][ T5043] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 86.054329][ T5043] ? __fget_light+0x1fc/0x260 [ 86.059023][ T5043] __sys_sendmsg+0x117/0x1e0 [ 86.063639][ T5043] ? __sys_sendmsg_sock+0x30/0x30 [ 86.068683][ T5043] ? ptrace_notify+0xf4/0x130 [ 86.073385][ T5043] ? _raw_spin_unlock_irq+0x2e/0x50 [ 86.078613][ T5043] ? ptrace_notify+0xf4/0x130 [ 86.083311][ T5043] do_syscall_64+0x38/0xb0 [ 86.087753][ T5043] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 86.093668][ T5043] RIP: 0033:0x7f43ea83a499 [ 86.098089][ T5043] 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 [ 86.117703][ T5043] RSP: 002b:00007ffcb4141ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.126135][ T5043] RAX: ffffffffffffffda RBX: 00007f43ea887390 RCX: 00007f43ea83a499 [ 86.134115][ T5043] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 86.142096][ T5043] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 86.150080][ T5043] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffcb4141cf0 [ 86.158063][ T5043] R13: 00007ffcb4141cc0 R14: 0000000000000001 R15: 00007ffcb4141cf0 [ 86.166051][ T5043] [ 86.169426][ T5043] Kernel Offset: disabled [ 86.173747][ T5043] Rebooting in 86400 seconds..