./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1235079311 <...> [ 102.576240][ T1149] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.158' (ED25519) to the list of known hosts. execve("./syz-executor1235079311", ["./syz-executor1235079311"], 0x7ffcd5051c80 /* 10 vars */) = 0 brk(NULL) = 0x555556a3e000 brk(0x555556a3ed00) = 0x555556a3ed00 arch_prctl(ARCH_SET_FS, 0x555556a3e380) = 0 set_tid_address(0x555556a3e650) = 5062 set_robust_list(0x555556a3e660, 24) = 0 rseq(0x555556a3eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1235079311", 4096) = 28 getrandom("\x5f\x99\xe8\xbc\x16\xb2\xcc\xf0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556a3ed00 brk(0x555556a5fd00) = 0x555556a5fd00 brk(0x555556a60000) = 0x555556a60000 mprotect(0x7f3033aa6000, 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 5063 attached , child_tidptr=0x555556a3e650) = 5063 [pid 5063] set_robust_list(0x555556a3e660, 24) = 0 [pid 5063] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5063] setsid() = 1 [pid 5063] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5063] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5063] unshare(CLONE_NEWNS) = 0 [pid 5063] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5063] unshare(CLONE_NEWIPC) = 0 [pid 5063] unshare(CLONE_NEWCGROUP) = 0 [pid 5063] unshare(CLONE_NEWUTS) = 0 [pid 5063] unshare(CLONE_SYSVSEM) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "16777216", 8) = 8 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "536870912", 9) = 9 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "8192", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024", 4) = 4 [pid 5063] close(3) = 0 [pid 5063] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5063] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5063] close(3) = 0 [pid 5063] getpid() = 1 [pid 5063] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< skb_headlen() (100) [ 114.627870][ T5063] WARNING: CPU: 1 PID: 5063 at net/core/dev.c:3302 skb_checksum_help+0x5e2/0x740 [ 114.637089][ T5063] Modules linked in: [ 114.641018][ T5063] CPU: 1 PID: 5063 Comm: syz-executor123 Not tainted 6.7.0-syzkaller-12305-g9f538b415db8 #0 [ 114.651153][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 114.661297][ T5063] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 114.667154][ T5063] 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 20 58 ea 8b e8 ff 09 d4 f8 90 <0f> 0b 90 90 e9 87 fe ff ff e8 00 df 65 f9 e9 4b fa ff ff 48 89 ef [ 114.686897][ T5063] RSP: 0018:ffffc90003adf088 EFLAGS: 00010286 [ 114.692987][ T5063] RAX: 0000000000000000 RBX: ffff888021316140 RCX: ffffffff814e18f9 [ 114.701063][ T5063] RDX: ffff8880285f3b80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 114.709113][ T5063] RBP: ffff8880213161b4 R08: 0000000000000001 R09: 0000000000000000 [ 114.717174][ T5063] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 114.725338][ T5063] R13: 000000000000a829 R14: ffff8880213161b0 R15: 000000000000a827 [ 114.733407][ T5063] FS: 0000555556a3e380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 114.742412][ T5063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.749082][ T5063] CR2: 000000002000d000 CR3: 00000000244b6000 CR4: 00000000003506f0 [ 114.757127][ T5063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.765180][ T5063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.773201][ T5063] Call Trace: [ 114.776563][ T5063] [ 114.779558][ T5063] ? show_regs+0x8f/0xa0 [ 114.783930][ T5063] ? __warn+0xe6/0x390 [ 114.788054][ T5063] ? skb_checksum_help+0x5e2/0x740 [ 114.793200][ T5063] ? report_bug+0x3bc/0x580 [ 114.797789][ T5063] ? handle_bug+0x3d/0x70 [ 114.802184][ T5063] ? exc_invalid_op+0x17/0x40 [ 114.806966][ T5063] ? asm_exc_invalid_op+0x1a/0x20 [ 114.812076][ T5063] ? __warn_printk+0x199/0x350 [ 114.817014][ T5063] ? __warn_printk+0x1a6/0x350 [ 114.821834][ T5063] ? skb_checksum_help+0x5e2/0x740 [ 114.827046][ T5063] ? skb_checksum_help+0x5e1/0x740 [ 114.832221][ T5063] ip_do_fragment+0xa15/0x18a0 [ 114.837073][ T5063] ? ip_fragment.constprop.0+0x230/0x230 [ 114.842767][ T5063] ? ip_skb_dst_mtu+0xc60/0xc60 [ 114.847707][ T5063] ? kfree_skbmem+0xef/0x1b0 [ 114.852361][ T5063] ? __kasan_slab_free+0x12c/0x1b0 [ 114.857552][ T5063] ? kmem_cache_free+0x129/0x350 [ 114.862543][ T5063] ? skb_release_data+0x5bf/0x870 [ 114.867640][ T5063] ? kfree_skbmem+0xef/0x1b0 [ 114.872295][ T5063] ip_fragment.constprop.0+0x161/0x230 [ 114.877883][ T5063] __ip_finish_output+0x49c/0x650 [ 114.882962][ T5063] ip_finish_output+0x31/0x310 [ 114.887822][ T5063] ip_mc_output+0x1dd/0x6a0 [ 114.892370][ T5063] ? __get_random_u32_below+0x4e/0xa0 [ 114.897867][ T5063] ip_local_out+0xaf/0x1a0 [ 114.902351][ T5063] iptunnel_xmit+0x5b4/0x9b0 [ 114.907036][ T5063] ip_tunnel_xmit+0x1daa/0x33b0 [ 114.911952][ T5063] ? reacquire_held_locks+0x410/0x4c0 [ 114.917495][ T5063] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 114.922849][ T5063] ? __gre_xmit+0x4f5/0x990 [ 114.927445][ T5063] ipgre_xmit+0x49b/0x980 [ 114.931850][ T5063] dev_hard_start_xmit+0x137/0x6d0 [ 114.937085][ T5063] __dev_queue_xmit+0x7b6/0x3ed0 [ 114.942113][ T5063] ? _copy_from_iter+0x2c1/0x10f0 [ 114.947278][ T5063] ? netdev_core_pick_tx+0x370/0x370 [ 114.952659][ T5063] ? skb_partial_csum_set+0x202/0x390 [ 114.958140][ T5063] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 114.964843][ T5063] ? packet_create+0x8e0/0x8e0 [ 114.969642][ T5063] packet_xmit+0x237/0x350 [ 114.974144][ T5063] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 114.980121][ T5063] packet_sendmsg+0x24a6/0x51e0 [ 114.985113][ T5063] ? preempt_count_sub+0x160/0x160 [ 114.990362][ T5063] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 114.996380][ T5063] ? aa_sk_perm+0x2f8/0xb40 [ 115.000953][ T5063] ? packet_notifier+0x8c0/0x8c0 [ 115.006007][ T5063] ? aa_af_perm+0x250/0x250 [ 115.010552][ T5063] ? import_ubuf+0x1a4/0x200 [ 115.015225][ T5063] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 115.020569][ T5063] ? packet_notifier+0x8c0/0x8c0 [ 115.025627][ T5063] __sock_sendmsg+0xd5/0x180 [ 115.030277][ T5063] ____sys_sendmsg+0x6ac/0x940 [ 115.035164][ T5063] ? copy_msghdr_from_user+0x10b/0x160 [ 115.040678][ T5063] ? kernel_sendmsg+0x50/0x50 [ 115.045469][ T5063] ___sys_sendmsg+0x135/0x1d0 [ 115.050196][ T5063] ? do_recvmmsg+0x740/0x740 [ 115.054890][ T5063] ? lock_sync+0x190/0x190 [ 115.059346][ T5063] ? ptrace_stop.part.0+0x457/0x950 [ 115.064673][ T5063] ? __fget_light+0x173/0x200 [ 115.069410][ T5063] __sys_sendmsg+0x117/0x1e0 [ 115.074075][ T5063] ? __sys_sendmsg_sock+0x30/0x30 [ 115.079139][ T5063] ? ptrace_notify+0xf4/0x130 [ 115.083912][ T5063] ? lockdep_hardirqs_on+0x7d/0x110 [ 115.089209][ T5063] ? _raw_spin_unlock_irq+0x2e/0x50 [ 115.094487][ T5063] ? ptrace_notify+0xf4/0x130 [ 115.099243][ T5063] do_syscall_64+0xd3/0x250 [ 115.103867][ T5063] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 115.109813][ T5063] RIP: 0033:0x7f3033a2e4d9 [ 115.114295][ T5063] 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 [ 115.133989][ T5063] RSP: 002b:00007ffc9035dc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 115.142426][ T5063] RAX: ffffffffffffffda RBX: 00007f3033a7b390 RCX: 00007f3033a2e4d9 [ 115.150497][ T5063] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 115.158629][ T5063] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 115.166674][ T5063] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffc9035dc60 [ 115.174713][ T5063] R13: 00007ffc9035dc30 R14: 0000000000000001 R15: 00007ffc9035dc60 [ 115.182719][ T5063] [ 115.185802][ T5063] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 115.193193][ T5063] CPU: 1 PID: 5063 Comm: syz-executor123 Not tainted 6.7.0-syzkaller-12305-g9f538b415db8 #0 [ 115.203288][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 115.213387][ T5063] Call Trace: [ 115.216691][ T5063] [ 115.219631][ T5063] dump_stack_lvl+0xd9/0x1b0 [ 115.224254][ T5063] panic+0x6dc/0x790 [ 115.228199][ T5063] ? panic_smp_self_stop+0xa0/0xa0 [ 115.233352][ T5063] ? show_trace_log_lvl+0x363/0x4f0 [ 115.238600][ T5063] ? check_panic_on_warn+0x1f/0xb0 [ 115.243767][ T5063] ? skb_checksum_help+0x5e2/0x740 [ 115.248955][ T5063] check_panic_on_warn+0xab/0xb0 [ 115.253975][ T5063] __warn+0xf2/0x390 [ 115.257998][ T5063] ? skb_checksum_help+0x5e2/0x740 [ 115.263154][ T5063] report_bug+0x3bc/0x580 [ 115.267540][ T5063] handle_bug+0x3d/0x70 [ 115.271747][ T5063] exc_invalid_op+0x17/0x40 [ 115.276382][ T5063] asm_exc_invalid_op+0x1a/0x20 [ 115.281265][ T5063] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 115.287079][ T5063] 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 20 58 ea 8b e8 ff 09 d4 f8 90 <0f> 0b 90 90 e9 87 fe ff ff e8 00 df 65 f9 e9 4b fa ff ff 48 89 ef [ 115.306714][ T5063] RSP: 0018:ffffc90003adf088 EFLAGS: 00010286 [ 115.312901][ T5063] RAX: 0000000000000000 RBX: ffff888021316140 RCX: ffffffff814e18f9 [ 115.320902][ T5063] RDX: ffff8880285f3b80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 115.328892][ T5063] RBP: ffff8880213161b4 R08: 0000000000000001 R09: 0000000000000000 [ 115.336886][ T5063] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 115.344874][ T5063] R13: 000000000000a829 R14: ffff8880213161b0 R15: 000000000000a827 [ 115.352870][ T5063] ? __warn_printk+0x199/0x350 [ 115.357746][ T5063] ? __warn_printk+0x1a6/0x350 [ 115.362620][ T5063] ? skb_checksum_help+0x5e1/0x740 [ 115.367820][ T5063] ip_do_fragment+0xa15/0x18a0 [ 115.372612][ T5063] ? ip_fragment.constprop.0+0x230/0x230 [ 115.378320][ T5063] ? ip_skb_dst_mtu+0xc60/0xc60 [ 115.383211][ T5063] ? kfree_skbmem+0xef/0x1b0 [ 115.387858][ T5063] ? __kasan_slab_free+0x12c/0x1b0 [ 115.393079][ T5063] ? kmem_cache_free+0x129/0x350 [ 115.398064][ T5063] ? skb_release_data+0x5bf/0x870 [ 115.403143][ T5063] ? kfree_skbmem+0xef/0x1b0 [ 115.407905][ T5063] ip_fragment.constprop.0+0x161/0x230 [ 115.413437][ T5063] __ip_finish_output+0x49c/0x650 [ 115.418526][ T5063] ip_finish_output+0x31/0x310 [ 115.423350][ T5063] ip_mc_output+0x1dd/0x6a0 [ 115.428102][ T5063] ? __get_random_u32_below+0x4e/0xa0 [ 115.433526][ T5063] ip_local_out+0xaf/0x1a0 [ 115.437968][ T5063] iptunnel_xmit+0x5b4/0x9b0 [ 115.442608][ T5063] ip_tunnel_xmit+0x1daa/0x33b0 [ 115.447556][ T5063] ? reacquire_held_locks+0x410/0x4c0 [ 115.452962][ T5063] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 115.458296][ T5063] ? __gre_xmit+0x4f5/0x990 [ 115.462826][ T5063] ipgre_xmit+0x49b/0x980 [ 115.467185][ T5063] dev_hard_start_xmit+0x137/0x6d0 [ 115.472333][ T5063] __dev_queue_xmit+0x7b6/0x3ed0 [ 115.477330][ T5063] ? _copy_from_iter+0x2c1/0x10f0 [ 115.482394][ T5063] ? netdev_core_pick_tx+0x370/0x370 [ 115.487799][ T5063] ? skb_partial_csum_set+0x202/0x390 [ 115.493219][ T5063] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 115.499858][ T5063] ? packet_create+0x8e0/0x8e0 [ 115.504661][ T5063] packet_xmit+0x237/0x350 [ 115.509279][ T5063] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 115.515285][ T5063] packet_sendmsg+0x24a6/0x51e0 [ 115.520181][ T5063] ? preempt_count_sub+0x160/0x160 [ 115.525332][ T5063] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 115.531251][ T5063] ? aa_sk_perm+0x2f8/0xb40 [ 115.535778][ T5063] ? packet_notifier+0x8c0/0x8c0 [ 115.540744][ T5063] ? aa_af_perm+0x250/0x250 [ 115.545284][ T5063] ? import_ubuf+0x1a4/0x200 [ 115.549945][ T5063] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 115.555288][ T5063] ? packet_notifier+0x8c0/0x8c0 [ 115.560263][ T5063] __sock_sendmsg+0xd5/0x180 [ 115.564976][ T5063] ____sys_sendmsg+0x6ac/0x940 [ 115.569769][ T5063] ? copy_msghdr_from_user+0x10b/0x160 [ 115.575247][ T5063] ? kernel_sendmsg+0x50/0x50 [ 115.579965][ T5063] ___sys_sendmsg+0x135/0x1d0 [ 115.584666][ T5063] ? do_recvmmsg+0x740/0x740 [ 115.589284][ T5063] ? lock_sync+0x190/0x190 [ 115.593726][ T5063] ? ptrace_stop.part.0+0x457/0x950 [ 115.598980][ T5063] ? __fget_light+0x173/0x200 [ 115.603718][ T5063] __sys_sendmsg+0x117/0x1e0 [ 115.608331][ T5063] ? __sys_sendmsg_sock+0x30/0x30 [ 115.613386][ T5063] ? ptrace_notify+0xf4/0x130 [ 115.618118][ T5063] ? lockdep_hardirqs_on+0x7d/0x110 [ 115.623358][ T5063] ? _raw_spin_unlock_irq+0x2e/0x50 [ 115.628577][ T5063] ? ptrace_notify+0xf4/0x130 [ 115.633277][ T5063] do_syscall_64+0xd3/0x250 [ 115.637829][ T5063] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 115.643748][ T5063] RIP: 0033:0x7f3033a2e4d9 [ 115.648198][ T5063] 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 [ 115.667824][ T5063] RSP: 002b:00007ffc9035dc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 115.676258][ T5063] RAX: ffffffffffffffda RBX: 00007f3033a7b390 RCX: 00007f3033a2e4d9 [ 115.684262][ T5063] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 115.692243][ T5063] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 115.700232][ T5063] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffc9035dc60 [ 115.708219][ T5063] R13: 00007ffc9035dc30 R14: 0000000000000001 R15: 00007ffc9035dc60 [ 115.716218][ T5063] [ 115.719553][ T5063] Kernel Offset: disabled [ 115.723989][ T5063] Rebooting in 86400 seconds..