./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2172719963 <...> [ 102.540100][ T8] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. execve("./syz-executor2172719963", ["./syz-executor2172719963"], 0x7ffdcb6e2d90 /* 10 vars */) = 0 brk(NULL) = 0x555557514000 brk(0x555557514d00) = 0x555557514d00 arch_prctl(ARCH_SET_FS, 0x555557514380) = 0 set_tid_address(0x555557514650) = 5063 set_robust_list(0x555557514660, 24) = 0 rseq(0x555557514ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2172719963", 4096) = 28 getrandom("\x3a\xdc\x64\xfd\x1e\xa9\x43\x15", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557514d00 brk(0x555557535d00) = 0x555557535d00 brk(0x555557536000) = 0x555557536000 mprotect(0x7f13e531d000, 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 5064 attached , child_tidptr=0x555557514650) = 5064 [pid 5064] set_robust_list(0x555557514660, 24) = 0 [pid 5064] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5064] setsid() = 1 [pid 5064] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5064] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5064] unshare(CLONE_NEWNS) = 0 [pid 5064] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5064] unshare(CLONE_NEWIPC) = 0 [pid 5064] unshare(CLONE_NEWCGROUP) = 0 [pid 5064] unshare(CLONE_NEWUTS) = 0 [pid 5064] unshare(CLONE_SYSVSEM) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "16777216", 8) = 8 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "536870912", 9) = 9 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "8192", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024", 4) = 4 [pid 5064] close(3) = 0 [pid 5064] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5064] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5064] close(3) = 0 [pid 5064] getpid() = 1 [pid 5064] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< skb_headlen() (116) [ 115.781552][ T5064] WARNING: CPU: 1 PID: 5064 at net/core/dev.c:3302 skb_checksum_help+0x5e2/0x740 [ 115.790761][ T5064] Modules linked in: [ 115.794667][ T5064] CPU: 1 PID: 5064 Comm: syz-executor217 Not tainted 6.7.0-syzkaller-12262-g736b5545d39c #0 [ 115.804799][ T5064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 115.814923][ T5064] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 115.820747][ T5064] Code: 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 52 01 00 00 44 89 e2 2b 53 74 4c 89 ee 48 c7 c7 a0 58 ea 8b e8 ef 12 d4 f8 90 <0f> 0b 90 90 e9 87 fe ff ff e8 f0 e7 65 f9 e9 4b fa ff ff 48 89 ef [ 115.840606][ T5064] RSP: 0018:ffffc90003a3f088 EFLAGS: 00010286 [ 115.846690][ T5064] RAX: 0000000000000000 RBX: ffff88801e61f140 RCX: ffffffff814e18f9 [ 115.854742][ T5064] RDX: ffff88802999bb80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 115.863045][ T5064] RBP: ffff88801e61f1b4 R08: 0000000000000001 R09: 0000000000000000 [ 115.871084][ T5064] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 115.879115][ T5064] R13: 0000000000000229 R14: ffff88801e61f1b0 R15: 0000000000000227 [ 115.887098][ T5064] FS: 0000555557514380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 115.896104][ T5064] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 115.902760][ T5064] CR2: 000000002000d000 CR3: 000000007db18000 CR4: 00000000003506f0 [ 115.910798][ T5064] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 115.918802][ T5064] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 115.926848][ T5064] Call Trace: [ 115.930216][ T5064] [ 115.933164][ T5064] ? show_regs+0x8f/0xa0 [ 115.937431][ T5064] ? __warn+0xe6/0x390 [ 115.941580][ T5064] ? skb_checksum_help+0x5e2/0x740 [ 115.946974][ T5064] ? report_bug+0x3bc/0x580 [ 115.951558][ T5064] ? handle_bug+0x3d/0x70 [ 115.955941][ T5064] ? exc_invalid_op+0x17/0x40 [ 115.960702][ T5064] ? asm_exc_invalid_op+0x1a/0x20 [ 115.965775][ T5064] ? __warn_printk+0x199/0x350 [ 115.970680][ T5064] ? __warn_printk+0x1a6/0x350 [ 115.975512][ T5064] ? skb_checksum_help+0x5e2/0x740 [ 115.980725][ T5064] ? skb_checksum_help+0x5e1/0x740 [ 115.985901][ T5064] ip_do_fragment+0xa15/0x18a0 [ 115.990834][ T5064] ? ip_fragment.constprop.0+0x230/0x230 [ 115.996536][ T5064] ? ip_skb_dst_mtu+0xc60/0xc60 [ 116.001469][ T5064] ? kfree_skbmem+0xef/0x1b0 [ 116.006129][ T5064] ? __kasan_slab_free+0x12c/0x1b0 [ 116.011505][ T5064] ? kmem_cache_free+0x129/0x350 [ 116.016495][ T5064] ? skb_release_data+0x5bf/0x870 [ 116.021596][ T5064] ? kfree_skbmem+0xef/0x1b0 [ 116.026253][ T5064] ip_fragment.constprop.0+0x161/0x230 [ 116.031799][ T5064] __ip_finish_output+0x49c/0x650 [ 116.036903][ T5064] ip_finish_output+0x31/0x310 [ 116.041753][ T5064] ip_mc_output+0x1dd/0x6a0 [ 116.046302][ T5064] ? __get_random_u32_below+0x4e/0xa0 [ 116.051770][ T5064] ip_local_out+0xaf/0x1a0 [ 116.056232][ T5064] iptunnel_xmit+0x5b4/0x9b0 [ 116.060939][ T5064] ip_tunnel_xmit+0x1daa/0x33b0 [ 116.065857][ T5064] ? reacquire_held_locks+0x410/0x4c0 [ 116.071339][ T5064] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 116.076880][ T5064] ? __gre_xmit+0x4f5/0x990 [ 116.081493][ T5064] ipgre_xmit+0x49b/0x980 [ 116.085875][ T5064] dev_hard_start_xmit+0x137/0x6d0 [ 116.091089][ T5064] __dev_queue_xmit+0x7b6/0x3ed0 [ 116.096092][ T5064] ? _copy_from_iter+0x2c1/0x10f0 [ 116.101195][ T5064] ? netdev_core_pick_tx+0x370/0x370 [ 116.106541][ T5064] ? skb_partial_csum_set+0x202/0x390 [ 116.112003][ T5064] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 116.118756][ T5064] ? packet_create+0x8e0/0x8e0 [ 116.123612][ T5064] packet_xmit+0x237/0x350 [ 116.128087][ T5064] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 116.134072][ T5064] packet_sendmsg+0x24a6/0x51e0 [ 116.139062][ T5064] ? preempt_count_sub+0x160/0x160 [ 116.144218][ T5064] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 116.150268][ T5064] ? aa_sk_perm+0x2f8/0xb40 [ 116.154854][ T5064] ? packet_notifier+0x8c0/0x8c0 [ 116.159872][ T5064] ? aa_af_perm+0x250/0x250 [ 116.164442][ T5064] ? import_ubuf+0x1a4/0x200 [ 116.169152][ T5064] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 116.174501][ T5064] ? packet_notifier+0x8c0/0x8c0 [ 116.179530][ T5064] __sock_sendmsg+0xd5/0x180 [ 116.184176][ T5064] ____sys_sendmsg+0x6ac/0x940 [ 116.189042][ T5064] ? copy_msghdr_from_user+0x10b/0x160 [ 116.194722][ T5064] ? kernel_sendmsg+0x50/0x50 [ 116.199522][ T5064] ___sys_sendmsg+0x135/0x1d0 [ 116.204276][ T5064] ? do_recvmmsg+0x740/0x740 [ 116.208977][ T5064] ? lock_sync+0x190/0x190 [ 116.213456][ T5064] ? ptrace_stop.part.0+0x457/0x950 [ 116.218713][ T5064] ? __fget_light+0x173/0x200 [ 116.223508][ T5064] __sys_sendmsg+0x117/0x1e0 [ 116.228158][ T5064] ? __sys_sendmsg_sock+0x30/0x30 [ 116.233266][ T5064] ? ptrace_notify+0xf4/0x130 [ 116.238088][ T5064] ? lockdep_hardirqs_on+0x7d/0x110 [ 116.243384][ T5064] ? _raw_spin_unlock_irq+0x2e/0x50 [ 116.248631][ T5064] ? ptrace_notify+0xf4/0x130 [ 116.253429][ T5064] do_syscall_64+0xd3/0x250 [ 116.258002][ T5064] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 116.263991][ T5064] RIP: 0033:0x7f13e52a55d9 [ 116.268442][ T5064] 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 [ 116.288249][ T5064] RSP: 002b:00007ffe00b6b868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.296776][ T5064] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f13e52a55d9 [ 116.304846][ T5064] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 116.312882][ T5064] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555500000000 [ 116.320918][ T5064] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffe00b6b8b0 [ 116.328965][ T5064] R13: 00007ffe00b6b880 R14: 0000000000000001 R15: 00007ffe00b6b8b0 [ 116.337065][ T5064] [ 116.340182][ T5064] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 116.347511][ T5064] CPU: 1 PID: 5064 Comm: syz-executor217 Not tainted 6.7.0-syzkaller-12262-g736b5545d39c #0 [ 116.357592][ T5064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 116.367657][ T5064] Call Trace: [ 116.370978][ T5064] [ 116.373936][ T5064] dump_stack_lvl+0xd9/0x1b0 [ 116.378549][ T5064] panic+0x6dc/0x790 [ 116.382471][ T5064] ? panic_smp_self_stop+0xa0/0xa0 [ 116.387619][ T5064] ? show_trace_log_lvl+0x363/0x4f0 [ 116.392853][ T5064] ? check_panic_on_warn+0x1f/0xb0 [ 116.397998][ T5064] ? skb_checksum_help+0x5e2/0x740 [ 116.403146][ T5064] check_panic_on_warn+0xab/0xb0 [ 116.408112][ T5064] __warn+0xf2/0x390 [ 116.412028][ T5064] ? skb_checksum_help+0x5e2/0x740 [ 116.417173][ T5064] report_bug+0x3bc/0x580 [ 116.421525][ T5064] handle_bug+0x3d/0x70 [ 116.425714][ T5064] exc_invalid_op+0x17/0x40 [ 116.430351][ T5064] asm_exc_invalid_op+0x1a/0x20 [ 116.435219][ T5064] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 116.440977][ T5064] Code: 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 52 01 00 00 44 89 e2 2b 53 74 4c 89 ee 48 c7 c7 a0 58 ea 8b e8 ef 12 d4 f8 90 <0f> 0b 90 90 e9 87 fe ff ff e8 f0 e7 65 f9 e9 4b fa ff ff 48 89 ef [ 116.460730][ T5064] RSP: 0018:ffffc90003a3f088 EFLAGS: 00010286 [ 116.466812][ T5064] RAX: 0000000000000000 RBX: ffff88801e61f140 RCX: ffffffff814e18f9 [ 116.474794][ T5064] RDX: ffff88802999bb80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 116.482779][ T5064] RBP: ffff88801e61f1b4 R08: 0000000000000001 R09: 0000000000000000 [ 116.490768][ T5064] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 116.498770][ T5064] R13: 0000000000000229 R14: ffff88801e61f1b0 R15: 0000000000000227 [ 116.507040][ T5064] ? __warn_printk+0x199/0x350 [ 116.511842][ T5064] ? __warn_printk+0x1a6/0x350 [ 116.516638][ T5064] ? skb_checksum_help+0x5e1/0x740 [ 116.521787][ T5064] ip_do_fragment+0xa15/0x18a0 [ 116.526575][ T5064] ? ip_fragment.constprop.0+0x230/0x230 [ 116.532250][ T5064] ? ip_skb_dst_mtu+0xc60/0xc60 [ 116.537129][ T5064] ? kfree_skbmem+0xef/0x1b0 [ 116.541747][ T5064] ? __kasan_slab_free+0x12c/0x1b0 [ 116.546882][ T5064] ? kmem_cache_free+0x129/0x350 [ 116.551873][ T5064] ? skb_release_data+0x5bf/0x870 [ 116.556914][ T5064] ? kfree_skbmem+0xef/0x1b0 [ 116.561534][ T5064] ip_fragment.constprop.0+0x161/0x230 [ 116.567013][ T5064] __ip_finish_output+0x49c/0x650 [ 116.572058][ T5064] ip_finish_output+0x31/0x310 [ 116.576843][ T5064] ip_mc_output+0x1dd/0x6a0 [ 116.581362][ T5064] ? __get_random_u32_below+0x4e/0xa0 [ 116.586772][ T5064] ip_local_out+0xaf/0x1a0 [ 116.591209][ T5064] iptunnel_xmit+0x5b4/0x9b0 [ 116.595825][ T5064] ip_tunnel_xmit+0x1daa/0x33b0 [ 116.600728][ T5064] ? reacquire_held_locks+0x410/0x4c0 [ 116.606144][ T5064] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 116.611466][ T5064] ? __gre_xmit+0x4f5/0x990 [ 116.615989][ T5064] ipgre_xmit+0x49b/0x980 [ 116.620343][ T5064] dev_hard_start_xmit+0x137/0x6d0 [ 116.625488][ T5064] __dev_queue_xmit+0x7b6/0x3ed0 [ 116.630457][ T5064] ? _copy_from_iter+0x2c1/0x10f0 [ 116.635582][ T5064] ? netdev_core_pick_tx+0x370/0x370 [ 116.640898][ T5064] ? skb_partial_csum_set+0x202/0x390 [ 116.646298][ T5064] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 116.652948][ T5064] ? packet_create+0x8e0/0x8e0 [ 116.657743][ T5064] packet_xmit+0x237/0x350 [ 116.662186][ T5064] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 116.668105][ T5064] packet_sendmsg+0x24a6/0x51e0 [ 116.673007][ T5064] ? preempt_count_sub+0x160/0x160 [ 116.678146][ T5064] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 116.684078][ T5064] ? aa_sk_perm+0x2f8/0xb40 [ 116.688603][ T5064] ? packet_notifier+0x8c0/0x8c0 [ 116.693564][ T5064] ? aa_af_perm+0x250/0x250 [ 116.698096][ T5064] ? import_ubuf+0x1a4/0x200 [ 116.702741][ T5064] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 116.708060][ T5064] ? packet_notifier+0x8c0/0x8c0 [ 116.713027][ T5064] __sock_sendmsg+0xd5/0x180 [ 116.717646][ T5064] ____sys_sendmsg+0x6ac/0x940 [ 116.722436][ T5064] ? copy_msghdr_from_user+0x10b/0x160 [ 116.727910][ T5064] ? kernel_sendmsg+0x50/0x50 [ 116.732625][ T5064] ___sys_sendmsg+0x135/0x1d0 [ 116.737317][ T5064] ? do_recvmmsg+0x740/0x740 [ 116.741929][ T5064] ? lock_sync+0x190/0x190 [ 116.746366][ T5064] ? ptrace_stop.part.0+0x457/0x950 [ 116.751599][ T5064] ? __fget_light+0x173/0x200 [ 116.756303][ T5064] __sys_sendmsg+0x117/0x1e0 [ 116.760908][ T5064] ? __sys_sendmsg_sock+0x30/0x30 [ 116.765947][ T5064] ? ptrace_notify+0xf4/0x130 [ 116.770652][ T5064] ? lockdep_hardirqs_on+0x7d/0x110 [ 116.775879][ T5064] ? _raw_spin_unlock_irq+0x2e/0x50 [ 116.781093][ T5064] ? ptrace_notify+0xf4/0x130 [ 116.785789][ T5064] do_syscall_64+0xd3/0x250 [ 116.790313][ T5064] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 116.796221][ T5064] RIP: 0033:0x7f13e52a55d9 [ 116.800655][ T5064] 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 [ 116.820277][ T5064] RSP: 002b:00007ffe00b6b868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 116.828712][ T5064] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f13e52a55d9 [ 116.836846][ T5064] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 116.844848][ T5064] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555500000000 [ 116.852853][ T5064] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffe00b6b8b0 [ 116.860877][ T5064] R13: 00007ffe00b6b880 R14: 0000000000000001 R15: 00007ffe00b6b8b0 [ 116.868920][ T5064] [ 116.872231][ T5064] Kernel Offset: disabled [ 116.876672][ T5064] Rebooting in 86400 seconds..