./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2992617717 <...> Warning: Permanently added '10.128.0.139' (ED25519) to the list of known hosts. execve("./syz-executor2992617717", ["./syz-executor2992617717"], 0x7ffde4b5cc60 /* 10 vars */) = 0 brk(NULL) = 0x55555cfc8000 brk(0x55555cfc8d00) = 0x55555cfc8d00 arch_prctl(ARCH_SET_FS, 0x55555cfc8380) = 0 set_tid_address(0x55555cfc8650) = 5083 set_robust_list(0x55555cfc8660, 24) = 0 rseq(0x55555cfc8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2992617717", 4096) = 28 getrandom("\x13\x27\xcb\xc1\x8d\xc6\x54\xdc", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555cfc8d00 brk(0x55555cfe9d00) = 0x55555cfe9d00 brk(0x55555cfea000) = 0x55555cfea000 mprotect(0x7ff89aaa2000, 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=0x55555cfc8650) = 5084 ./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55555cfc8660, 24) = 0 [pid 5084] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setsid() = 1 [pid 5084] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5084] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5084] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5084] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5084] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5084] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5084] unshare(CLONE_NEWNS) = 0 [pid 5084] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5084] unshare(CLONE_NEWIPC) = 0 [pid 5084] unshare(CLONE_NEWCGROUP) = 0 [pid 5084] unshare(CLONE_NEWUTS) = 0 [pid 5084] unshare(CLONE_SYSVSEM) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "16777216", 8) = 8 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "536870912", 9) = 9 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1024", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "8192", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1024", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1024", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5084] close(3) = 0 [pid 5084] getpid() = 1 [pid 5084] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< skb_headlen() (1651) [ 67.552548][ T5084] WARNING: CPU: 0 PID: 5084 at net/core/dev.c:3287 skb_checksum_help+0x68f/0x730 [ 67.561792][ T5084] Modules linked in: [ 67.565770][ T5084] CPU: 0 PID: 5084 Comm: syz-executor299 Not tainted 6.9.0-rc7-syzkaller-00132-g1164057b3c00 #0 [ 67.576252][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 67.586398][ T5084] RIP: 0010:skb_checksum_help+0x68f/0x730 [ 67.592146][ T5084] Code: 48 8b 4c 24 10 0f b6 04 01 84 c0 0f 85 89 00 00 00 48 8b 44 24 08 2b 18 48 c7 c7 a0 5b c1 8c 4c 89 f6 89 da e8 c2 28 06 f8 90 <0f> 0b 90 90 bb ea ff ff ff e9 cf fc ff ff 48 8b 0c 24 80 e1 07 80 [ 67.611818][ T5084] RSP: 0018:ffffc900034bee48 EFLAGS: 00010246 [ 67.617955][ T5084] RAX: 8f79286a0ef60900 RBX: 0000000000000673 RCX: ffff88807cd65a00 [ 67.626027][ T5084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 67.634037][ T5084] RBP: dffffc0000000000 R08: ffffffff81587d32 R09: 1ffff1101728519a [ 67.642000][ T5084] R10: dffffc0000000000 R11: ffffed101728519b R12: 1ffff110057d28d6 [ 67.650012][ T5084] R13: 0000000000009e73 R14: 0000000000009e75 R15: ffff88802be94640 [ 67.658059][ T5084] FS: 000055555cfc8380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 67.667051][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.673698][ T5084] CR2: 000000002000e000 CR3: 000000006a2a8000 CR4: 00000000003506f0 [ 67.681692][ T5084] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.689726][ T5084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.697798][ T5084] Call Trace: [ 67.701071][ T5084] [ 67.704054][ T5084] ? __warn+0x163/0x4e0 [ 67.708227][ T5084] ? skb_checksum_help+0x68f/0x730 [ 67.713379][ T5084] ? report_bug+0x2b3/0x500 [ 67.717919][ T5084] ? skb_checksum_help+0x68f/0x730 [ 67.723083][ T5084] ? handle_bug+0x3e/0x70 [ 67.727524][ T5084] ? exc_invalid_op+0x1a/0x50 [ 67.732300][ T5084] ? asm_exc_invalid_op+0x1a/0x20 [ 67.737403][ T5084] ? __warn_printk+0x292/0x360 [ 67.742206][ T5084] ? skb_checksum_help+0x68f/0x730 [ 67.747379][ T5084] ? skb_checksum_help+0x68e/0x730 [ 67.752514][ T5084] ip_do_fragment+0x21b/0x1b60 [ 67.757414][ T5084] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 67.763475][ T5084] ? __pfx_ip_finish_output2+0x10/0x10 [ 67.768970][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.775400][ T5084] ? __pfx_ip_do_fragment+0x10/0x10 [ 67.780655][ T5084] ? kasan_quarantine_put+0xdc/0x230 [ 67.786085][ T5084] ? lockdep_hardirqs_on+0x99/0x150 [ 67.791323][ T5084] ? __ip_finish_output+0x247/0x400 [ 67.796570][ T5084] ? kmem_cache_free+0x10b/0x2d0 [ 67.801525][ T5084] ? ip_fragment+0x9a/0x220 [ 67.806086][ T5084] __ip_finish_output+0x290/0x400 [ 67.811169][ T5084] iptunnel_xmit+0x540/0x9b0 [ 67.815832][ T5084] ip_tunnel_xmit+0x20ef/0x2940 [ 67.820744][ T5084] ? __pfx_ip_tunnel_xmit+0x10/0x10 [ 67.826004][ T5084] ? skb_mac_gso_segment+0x1b8/0x740 [ 67.831305][ T5084] ? skb_mac_gso_segment+0x50c/0x740 [ 67.836639][ T5084] ? gre_build_header+0x25b/0x990 [ 67.841684][ T5084] ipgre_xmit+0x854/0xc30 [ 67.846076][ T5084] dev_hard_start_xmit+0x27a/0x7e0 [ 67.851237][ T5084] __dev_queue_xmit+0x1ad1/0x3ca0 [ 67.856381][ T5084] ? __dev_queue_xmit+0x2c7/0x3ca0 [ 67.861606][ T5084] ? skb_partial_csum_set+0x105/0x350 [ 67.867080][ T5084] ? __pfx___dev_queue_xmit+0x10/0x10 [ 67.872481][ T5084] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 67.878097][ T5084] ? packet_parse_headers+0x7bd/0xad0 [ 67.883547][ T5084] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 67.889369][ T5084] ? packet_xmit+0x68/0x330 [ 67.893907][ T5084] packet_sendmsg+0x46a9/0x6130 [ 67.898867][ T5084] ? __pfx___might_resched+0x10/0x10 [ 67.904246][ T5084] ? aa_sk_perm+0x967/0xab0 [ 67.908781][ T5084] ? __pfx_packet_sendmsg+0x10/0x10 [ 67.914059][ T5084] ? __pfx_lock_release+0x10/0x10 [ 67.919136][ T5084] ? __import_iovec+0x536/0x820 [ 67.924075][ T5084] ? aa_sock_msg_perm+0x91/0x160 [ 67.929039][ T5084] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 67.934377][ T5084] ? security_socket_sendmsg+0x87/0xb0 [ 67.939916][ T5084] ? __pfx_packet_sendmsg+0x10/0x10 [ 67.945189][ T5084] __sock_sendmsg+0x221/0x270 [ 67.949887][ T5084] ____sys_sendmsg+0x525/0x7d0 [ 67.954910][ T5084] ? __pfx_____sys_sendmsg+0x10/0x10 [ 67.960338][ T5084] ? do_raw_spin_lock+0x14f/0x370 [ 67.965455][ T5084] __sys_sendmsg+0x2b0/0x3a0 [ 67.970163][ T5084] ? __pfx___sys_sendmsg+0x10/0x10 [ 67.975349][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.981709][ T5084] ? _raw_spin_unlock_irq+0x2e/0x50 [ 67.986990][ T5084] ? ptrace_notify+0x279/0x380 [ 67.991776][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 67.998148][ T5084] ? exc_page_fault+0x577/0x8a0 [ 68.003066][ T5084] do_syscall_64+0xf5/0x240 [ 68.007590][ T5084] ? clear_bhb_loop+0x35/0x90 [ 68.012258][ T5084] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.018215][ T5084] RIP: 0033:0x7ff89aa2a499 [ 68.022655][ T5084] 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 [ 68.042313][ T5084] RSP: 002b:00007ffcfb1e7478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.050844][ T5084] RAX: ffffffffffffffda RBX: 00007ff89aa77390 RCX: 00007ff89aa2a499 [ 68.058881][ T5084] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 68.066896][ T5084] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 68.074909][ T5084] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffcfb1e74c0 [ 68.082918][ T5084] R13: 00007ffcfb1e7490 R14: 0000000000000001 R15: 00007ffcfb1e74c0 [ 68.090911][ T5084] [ 68.094006][ T5084] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 68.101314][ T5084] CPU: 0 PID: 5084 Comm: syz-executor299 Not tainted 6.9.0-rc7-syzkaller-00132-g1164057b3c00 #0 [ 68.111810][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 68.121855][ T5084] Call Trace: [ 68.125135][ T5084] [ 68.128061][ T5084] dump_stack_lvl+0x241/0x360 [ 68.132736][ T5084] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.137923][ T5084] ? __pfx__printk+0x10/0x10 [ 68.142507][ T5084] ? vscnprintf+0x5d/0x90 [ 68.146942][ T5084] panic+0x349/0x860 [ 68.150833][ T5084] ? __warn+0x172/0x4e0 [ 68.154995][ T5084] ? __pfx_panic+0x10/0x10 [ 68.159428][ T5084] __warn+0x346/0x4e0 [ 68.163407][ T5084] ? skb_checksum_help+0x68f/0x730 [ 68.168525][ T5084] report_bug+0x2b3/0x500 [ 68.172844][ T5084] ? skb_checksum_help+0x68f/0x730 [ 68.177947][ T5084] handle_bug+0x3e/0x70 [ 68.182107][ T5084] exc_invalid_op+0x1a/0x50 [ 68.186610][ T5084] asm_exc_invalid_op+0x1a/0x20 [ 68.191469][ T5084] RIP: 0010:skb_checksum_help+0x68f/0x730 [ 68.197177][ T5084] Code: 48 8b 4c 24 10 0f b6 04 01 84 c0 0f 85 89 00 00 00 48 8b 44 24 08 2b 18 48 c7 c7 a0 5b c1 8c 4c 89 f6 89 da e8 c2 28 06 f8 90 <0f> 0b 90 90 bb ea ff ff ff e9 cf fc ff ff 48 8b 0c 24 80 e1 07 80 [ 68.216790][ T5084] RSP: 0018:ffffc900034bee48 EFLAGS: 00010246 [ 68.222872][ T5084] RAX: 8f79286a0ef60900 RBX: 0000000000000673 RCX: ffff88807cd65a00 [ 68.230853][ T5084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 68.238840][ T5084] RBP: dffffc0000000000 R08: ffffffff81587d32 R09: 1ffff1101728519a [ 68.246822][ T5084] R10: dffffc0000000000 R11: ffffed101728519b R12: 1ffff110057d28d6 [ 68.254822][ T5084] R13: 0000000000009e73 R14: 0000000000009e75 R15: ffff88802be94640 [ 68.262789][ T5084] ? __warn_printk+0x292/0x360 [ 68.267558][ T5084] ? skb_checksum_help+0x68e/0x730 [ 68.272667][ T5084] ip_do_fragment+0x21b/0x1b60 [ 68.277446][ T5084] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 68.283425][ T5084] ? __pfx_ip_finish_output2+0x10/0x10 [ 68.288894][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.295235][ T5084] ? __pfx_ip_do_fragment+0x10/0x10 [ 68.300470][ T5084] ? kasan_quarantine_put+0xdc/0x230 [ 68.305766][ T5084] ? lockdep_hardirqs_on+0x99/0x150 [ 68.310968][ T5084] ? __ip_finish_output+0x247/0x400 [ 68.316161][ T5084] ? kmem_cache_free+0x10b/0x2d0 [ 68.321345][ T5084] ? ip_fragment+0x9a/0x220 [ 68.325841][ T5084] __ip_finish_output+0x290/0x400 [ 68.330857][ T5084] iptunnel_xmit+0x540/0x9b0 [ 68.335454][ T5084] ip_tunnel_xmit+0x20ef/0x2940 [ 68.340314][ T5084] ? __pfx_ip_tunnel_xmit+0x10/0x10 [ 68.345524][ T5084] ? skb_mac_gso_segment+0x1b8/0x740 [ 68.350797][ T5084] ? skb_mac_gso_segment+0x50c/0x740 [ 68.356074][ T5084] ? gre_build_header+0x25b/0x990 [ 68.361090][ T5084] ipgre_xmit+0x854/0xc30 [ 68.365440][ T5084] dev_hard_start_xmit+0x27a/0x7e0 [ 68.370549][ T5084] __dev_queue_xmit+0x1ad1/0x3ca0 [ 68.375568][ T5084] ? __dev_queue_xmit+0x2c7/0x3ca0 [ 68.380693][ T5084] ? skb_partial_csum_set+0x105/0x350 [ 68.387035][ T5084] ? __pfx___dev_queue_xmit+0x10/0x10 [ 68.392403][ T5084] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 68.397962][ T5084] ? packet_parse_headers+0x7bd/0xad0 [ 68.403361][ T5084] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 68.409287][ T5084] ? packet_xmit+0x68/0x330 [ 68.413817][ T5084] packet_sendmsg+0x46a9/0x6130 [ 68.418727][ T5084] ? __pfx___might_resched+0x10/0x10 [ 68.424051][ T5084] ? aa_sk_perm+0x967/0xab0 [ 68.428589][ T5084] ? __pfx_packet_sendmsg+0x10/0x10 [ 68.433789][ T5084] ? __pfx_lock_release+0x10/0x10 [ 68.438828][ T5084] ? __import_iovec+0x536/0x820 [ 68.443691][ T5084] ? aa_sock_msg_perm+0x91/0x160 [ 68.448640][ T5084] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 68.453922][ T5084] ? security_socket_sendmsg+0x87/0xb0 [ 68.459393][ T5084] ? __pfx_packet_sendmsg+0x10/0x10 [ 68.464599][ T5084] __sock_sendmsg+0x221/0x270 [ 68.469295][ T5084] ____sys_sendmsg+0x525/0x7d0 [ 68.474089][ T5084] ? __pfx_____sys_sendmsg+0x10/0x10 [ 68.479372][ T5084] ? do_raw_spin_lock+0x14f/0x370 [ 68.484408][ T5084] __sys_sendmsg+0x2b0/0x3a0 [ 68.489005][ T5084] ? __pfx___sys_sendmsg+0x10/0x10 [ 68.494137][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.500487][ T5084] ? _raw_spin_unlock_irq+0x2e/0x50 [ 68.505684][ T5084] ? ptrace_notify+0x279/0x380 [ 68.510442][ T5084] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 68.516785][ T5084] ? exc_page_fault+0x577/0x8a0 [ 68.521737][ T5084] do_syscall_64+0xf5/0x240 [ 68.526260][ T5084] ? clear_bhb_loop+0x35/0x90 [ 68.530947][ T5084] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.536840][ T5084] RIP: 0033:0x7ff89aa2a499 [ 68.541284][ T5084] 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 [ 68.560898][ T5084] RSP: 002b:00007ffcfb1e7478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.569313][ T5084] RAX: ffffffffffffffda RBX: 00007ff89aa77390 RCX: 00007ff89aa2a499 [ 68.577294][ T5084] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 68.585271][ T5084] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 68.593235][ T5084] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffcfb1e74c0 [ 68.601189][ T5084] R13: 00007ffcfb1e7490 R14: 0000000000000001 R15: 00007ffcfb1e74c0 [ 68.609162][ T5084] [ 68.612463][ T5084] Kernel Offset: disabled [ 68.616801][ T5084] Rebooting in 86400 seconds..