./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3801579389 <...> Warning: Permanently added '10.128.10.11' (ED25519) to the list of known hosts. execve("./syz-executor3801579389", ["./syz-executor3801579389"], 0x7ffcad51faf0 /* 10 vars */) = 0 brk(NULL) = 0x55557eb64000 brk(0x55557eb64d00) = 0x55557eb64d00 arch_prctl(ARCH_SET_FS, 0x55557eb64380) = 0 set_tid_address(0x55557eb64650) = 5087 set_robust_list(0x55557eb64660, 24) = 0 rseq(0x55557eb64ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3801579389", 4096) = 28 getrandom("\xca\x2b\xbb\xc9\xfc\x40\x10\x34", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557eb64d00 brk(0x55557eb85d00) = 0x55557eb85d00 brk(0x55557eb86000) = 0x55557eb86000 mprotect(0x7f1212144000, 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 5088 attached , child_tidptr=0x55557eb64650) = 5088 [pid 5088] set_robust_list(0x55557eb64660, 24) = 0 [pid 5088] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5088] setsid() = 1 [pid 5088] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5088] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5088] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5088] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5088] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5088] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5088] unshare(CLONE_NEWNS) = 0 [pid 5088] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5088] unshare(CLONE_NEWIPC) = 0 [pid 5088] unshare(CLONE_NEWCGROUP) = 0 [pid 5088] unshare(CLONE_NEWUTS) = 0 [pid 5088] unshare(CLONE_SYSVSEM) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "16777216", 8) = 8 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "536870912", 9) = 9 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1024", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "8192", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1024", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1024", 4) = 4 [pid 5088] close(3) = 0 [pid 5088] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5088] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5088] close(3) = 0 [pid 5088] getpid() = 1 [pid 5088] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< skb_headlen() (1651) [ 81.723284][ T5088] WARNING: CPU: 0 PID: 5088 at net/core/dev.c:3287 skb_checksum_help+0x68f/0x730 [ 81.732550][ T5088] Modules linked in: [ 81.736518][ T5088] CPU: 0 PID: 5088 Comm: syz-executor380 Not tainted 6.9.0-rc6-syzkaller-00042-g50dffbf77180 #0 [ 81.747020][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 81.757165][ T5088] RIP: 0010:skb_checksum_help+0x68f/0x730 [ 81.762976][ T5088] 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 60 53 c1 8c 4c 89 f6 89 da e8 b2 25 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 [ 81.782697][ T5088] RSP: 0018:ffffc900035cee48 EFLAGS: 00010246 [ 81.788845][ T5088] RAX: 91db37ef144f2800 RBX: 0000000000000673 RCX: ffff88802b820000 [ 81.796904][ T5088] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 81.804907][ T5088] RBP: dffffc0000000000 R08: ffffffff81589072 R09: 1ffff1101728519a [ 81.812947][ T5088] R10: dffffc0000000000 R11: ffffed101728519b R12: 1ffff11003f0059e [ 81.820982][ T5088] R13: 0000000000009e73 R14: 0000000000009e75 R15: ffff88801f802c80 [ 81.829018][ T5088] FS: 000055557eb64380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 81.838005][ T5088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.844593][ T5088] CR2: 000000002000e000 CR3: 000000007709e000 CR4: 00000000003506f0 [ 81.852641][ T5088] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.860686][ T5088] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.868750][ T5088] Call Trace: [ 81.872060][ T5088] [ 81.875015][ T5088] ? __warn+0x163/0x4e0 [ 81.879273][ T5088] ? skb_checksum_help+0x68f/0x730 [ 81.884431][ T5088] ? report_bug+0x2b3/0x500 [ 81.889035][ T5088] ? skb_checksum_help+0x68f/0x730 [ 81.894291][ T5088] ? handle_bug+0x3e/0x70 [ 81.898720][ T5088] ? exc_invalid_op+0x1a/0x50 [ 81.903445][ T5088] ? asm_exc_invalid_op+0x1a/0x20 [ 81.908579][ T5088] ? __warn_printk+0x292/0x360 [ 81.913393][ T5088] ? skb_checksum_help+0x68f/0x730 [ 81.918605][ T5088] ? skb_checksum_help+0x68e/0x730 [ 81.923770][ T5088] ip_do_fragment+0x21b/0x1b60 [ 81.928639][ T5088] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 81.934666][ T5088] ? __pfx_ip_finish_output2+0x10/0x10 [ 81.940224][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 81.946628][ T5088] ? __pfx_ip_do_fragment+0x10/0x10 [ 81.951869][ T5088] ? kasan_quarantine_put+0xdc/0x230 [ 81.957255][ T5088] ? lockdep_hardirqs_on+0x99/0x150 [ 81.962503][ T5088] ? __ip_finish_output+0x247/0x400 [ 81.967812][ T5088] ? kmem_cache_free+0x10b/0x2c0 [ 81.972788][ T5088] ? ip_fragment+0x9a/0x220 [ 81.977389][ T5088] __ip_finish_output+0x290/0x400 [ 81.982472][ T5088] iptunnel_xmit+0x540/0x9b0 [ 81.987176][ T5088] ip_tunnel_xmit+0x20ef/0x2940 [ 81.992103][ T5088] ? __pfx_ip_tunnel_xmit+0x10/0x10 [ 81.997467][ T5088] ? skb_mac_gso_segment+0x1b8/0x740 [ 82.002793][ T5088] ? skb_mac_gso_segment+0x50c/0x740 [ 82.008208][ T5088] ? gre_build_header+0x25b/0x990 [ 82.013283][ T5088] ipgre_xmit+0x854/0xc30 [ 82.017704][ T5088] dev_hard_start_xmit+0x27a/0x7e0 [ 82.022881][ T5088] __dev_queue_xmit+0x1ad1/0x3ca0 [ 82.028024][ T5088] ? __dev_queue_xmit+0x2c7/0x3ca0 [ 82.033171][ T5088] ? skb_partial_csum_set+0x105/0x350 [ 82.038646][ T5088] ? __pfx___dev_queue_xmit+0x10/0x10 [ 82.044054][ T5088] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 82.049690][ T5088] ? packet_parse_headers+0x7bd/0xad0 [ 82.055112][ T5088] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 82.061009][ T5088] ? packet_xmit+0x68/0x330 [ 82.065549][ T5088] packet_sendmsg+0x46a9/0x6130 [ 82.070529][ T5088] ? __pfx___might_resched+0x10/0x10 [ 82.075932][ T5088] ? aa_sk_perm+0x967/0xab0 [ 82.080499][ T5088] ? __pfx_packet_sendmsg+0x10/0x10 [ 82.085994][ T5088] ? __pfx_lock_release+0x10/0x10 [ 82.091074][ T5088] ? __import_iovec+0x536/0x820 [ 82.096025][ T5088] ? aa_sock_msg_perm+0x91/0x160 [ 82.100999][ T5088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 82.106395][ T5088] ? security_socket_sendmsg+0x87/0xb0 [ 82.111902][ T5088] ? __pfx_packet_sendmsg+0x10/0x10 [ 82.117197][ T5088] __sock_sendmsg+0x221/0x270 [ 82.121924][ T5088] ____sys_sendmsg+0x525/0x7d0 [ 82.126818][ T5088] ? __pfx_____sys_sendmsg+0x10/0x10 [ 82.132232][ T5088] ? do_raw_spin_lock+0x14f/0x370 [ 82.137350][ T5088] __sys_sendmsg+0x2b0/0x3a0 [ 82.141977][ T5088] ? __pfx___sys_sendmsg+0x10/0x10 [ 82.147224][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 82.153607][ T5088] ? _raw_spin_unlock_irq+0x2e/0x50 [ 82.158898][ T5088] ? ptrace_notify+0x279/0x380 [ 82.163710][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 82.170127][ T5088] ? exc_page_fault+0x585/0x8e0 [ 82.175031][ T5088] do_syscall_64+0xf5/0x240 [ 82.179634][ T5088] ? clear_bhb_loop+0x35/0x90 [ 82.184357][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.190341][ T5088] RIP: 0033:0x7f12120cc499 [ 82.194796][ T5088] 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 [ 82.214475][ T5088] RSP: 002b:00007ffdef0ead68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.222983][ T5088] RAX: ffffffffffffffda RBX: 00007f1212119390 RCX: 00007f12120cc499 [ 82.231024][ T5088] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 82.239079][ T5088] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 82.247131][ T5088] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffdef0eadb0 [ 82.255129][ T5088] R13: 00007ffdef0ead80 R14: 0000000000000001 R15: 00007ffdef0eadb0 [ 82.263205][ T5088] [ 82.266303][ T5088] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 82.273619][ T5088] CPU: 0 PID: 5088 Comm: syz-executor380 Not tainted 6.9.0-rc6-syzkaller-00042-g50dffbf77180 #0 [ 82.284079][ T5088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 82.294164][ T5088] Call Trace: [ 82.297474][ T5088] [ 82.300433][ T5088] dump_stack_lvl+0x241/0x360 [ 82.305162][ T5088] ? __pfx_dump_stack_lvl+0x10/0x10 [ 82.310398][ T5088] ? __pfx__printk+0x10/0x10 [ 82.315030][ T5088] ? vscnprintf+0x5d/0x90 [ 82.319393][ T5088] panic+0x349/0x860 [ 82.323323][ T5088] ? __warn+0x172/0x4e0 [ 82.327512][ T5088] ? __pfx_panic+0x10/0x10 [ 82.331957][ T5088] __warn+0x346/0x4e0 [ 82.335974][ T5088] ? skb_checksum_help+0x68f/0x730 [ 82.341203][ T5088] report_bug+0x2b3/0x500 [ 82.345547][ T5088] ? skb_checksum_help+0x68f/0x730 [ 82.350689][ T5088] handle_bug+0x3e/0x70 [ 82.354887][ T5088] exc_invalid_op+0x1a/0x50 [ 82.359407][ T5088] asm_exc_invalid_op+0x1a/0x20 [ 82.364271][ T5088] RIP: 0010:skb_checksum_help+0x68f/0x730 [ 82.370127][ T5088] 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 60 53 c1 8c 4c 89 f6 89 da e8 b2 25 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 [ 82.389828][ T5088] RSP: 0018:ffffc900035cee48 EFLAGS: 00010246 [ 82.395913][ T5088] RAX: 91db37ef144f2800 RBX: 0000000000000673 RCX: ffff88802b820000 [ 82.403896][ T5088] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 82.411873][ T5088] RBP: dffffc0000000000 R08: ffffffff81589072 R09: 1ffff1101728519a [ 82.419854][ T5088] R10: dffffc0000000000 R11: ffffed101728519b R12: 1ffff11003f0059e [ 82.427834][ T5088] R13: 0000000000009e73 R14: 0000000000009e75 R15: ffff88801f802c80 [ 82.435821][ T5088] ? __warn_printk+0x292/0x360 [ 82.441309][ T5088] ? skb_checksum_help+0x68e/0x730 [ 82.446534][ T5088] ip_do_fragment+0x21b/0x1b60 [ 82.451325][ T5088] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 82.457319][ T5088] ? __pfx_ip_finish_output2+0x10/0x10 [ 82.462796][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 82.469137][ T5088] ? __pfx_ip_do_fragment+0x10/0x10 [ 82.474367][ T5088] ? kasan_quarantine_put+0xdc/0x230 [ 82.479669][ T5088] ? lockdep_hardirqs_on+0x99/0x150 [ 82.484888][ T5088] ? __ip_finish_output+0x247/0x400 [ 82.490099][ T5088] ? kmem_cache_free+0x10b/0x2c0 [ 82.495054][ T5088] ? ip_fragment+0x9a/0x220 [ 82.499573][ T5088] __ip_finish_output+0x290/0x400 [ 82.504621][ T5088] iptunnel_xmit+0x540/0x9b0 [ 82.509237][ T5088] ip_tunnel_xmit+0x20ef/0x2940 [ 82.514131][ T5088] ? __pfx_ip_tunnel_xmit+0x10/0x10 [ 82.519337][ T5088] ? skb_mac_gso_segment+0x1b8/0x740 [ 82.524632][ T5088] ? skb_mac_gso_segment+0x50c/0x740 [ 82.529956][ T5088] ? gre_build_header+0x25b/0x990 [ 82.535006][ T5088] ipgre_xmit+0x854/0xc30 [ 82.539370][ T5088] dev_hard_start_xmit+0x27a/0x7e0 [ 82.544510][ T5088] __dev_queue_xmit+0x1ad1/0x3ca0 [ 82.549642][ T5088] ? __dev_queue_xmit+0x2c7/0x3ca0 [ 82.554763][ T5088] ? skb_partial_csum_set+0x105/0x350 [ 82.560177][ T5088] ? __pfx___dev_queue_xmit+0x10/0x10 [ 82.565562][ T5088] ? virtio_net_hdr_to_skb+0xa6a/0x1330 [ 82.571117][ T5088] ? packet_parse_headers+0x7bd/0xad0 [ 82.576515][ T5088] ? __pfx_virtio_net_hdr_to_skb+0x10/0x10 [ 82.582334][ T5088] ? packet_xmit+0x68/0x330 [ 82.586850][ T5088] packet_sendmsg+0x46a9/0x6130 [ 82.591749][ T5088] ? __pfx___might_resched+0x10/0x10 [ 82.597063][ T5088] ? aa_sk_perm+0x967/0xab0 [ 82.601591][ T5088] ? __pfx_packet_sendmsg+0x10/0x10 [ 82.606812][ T5088] ? __pfx_lock_release+0x10/0x10 [ 82.611845][ T5088] ? __import_iovec+0x536/0x820 [ 82.616725][ T5088] ? aa_sock_msg_perm+0x91/0x160 [ 82.621677][ T5088] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 82.626976][ T5088] ? security_socket_sendmsg+0x87/0xb0 [ 82.632451][ T5088] ? __pfx_packet_sendmsg+0x10/0x10 [ 82.637670][ T5088] __sock_sendmsg+0x221/0x270 [ 82.642364][ T5088] ____sys_sendmsg+0x525/0x7d0 [ 82.647146][ T5088] ? __pfx_____sys_sendmsg+0x10/0x10 [ 82.652442][ T5088] ? do_raw_spin_lock+0x14f/0x370 [ 82.657513][ T5088] __sys_sendmsg+0x2b0/0x3a0 [ 82.662135][ T5088] ? __pfx___sys_sendmsg+0x10/0x10 [ 82.667292][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 82.673662][ T5088] ? _raw_spin_unlock_irq+0x2e/0x50 [ 82.678992][ T5088] ? ptrace_notify+0x279/0x380 [ 82.683807][ T5088] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 82.690186][ T5088] ? exc_page_fault+0x585/0x8e0 [ 82.695069][ T5088] do_syscall_64+0xf5/0x240 [ 82.699595][ T5088] ? clear_bhb_loop+0x35/0x90 [ 82.704291][ T5088] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.710200][ T5088] RIP: 0033:0x7f12120cc499 [ 82.714626][ T5088] 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 [ 82.734246][ T5088] RSP: 002b:00007ffdef0ead68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.742765][ T5088] RAX: ffffffffffffffda RBX: 00007f1212119390 RCX: 00007f12120cc499 [ 82.750747][ T5088] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 82.758728][ T5088] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 82.766706][ T5088] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffdef0eadb0 [ 82.774684][ T5088] R13: 00007ffdef0ead80 R14: 0000000000000001 R15: 00007ffdef0eadb0 [ 82.782679][ T5088] [ 82.785987][ T5088] Kernel Offset: disabled [ 82.790349][ T5088] Rebooting in 86400 seconds..