./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3458876448 <...> [ 102.600254][ T782] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.114' (ED25519) to the list of known hosts. execve("./syz-executor3458876448", ["./syz-executor3458876448"], 0x7fffc8d0d6e0 /* 10 vars */) = 0 brk(NULL) = 0x555556c9c000 brk(0x555556c9cd00) = 0x555556c9cd00 arch_prctl(ARCH_SET_FS, 0x555556c9c380) = 0 set_tid_address(0x555556c9c650) = 5061 set_robust_list(0x555556c9c660, 24) = 0 rseq(0x555556c9cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3458876448", 4096) = 28 getrandom("\x1a\xa0\xb5\xbf\xe9\xbd\x18\xb9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556c9cd00 brk(0x555556cbdd00) = 0x555556cbdd00 brk(0x555556cbe000) = 0x555556cbe000 mprotect(0x7fd1565cb000, 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=0x555556c9c650) = 5062 ./strace-static-x86_64: Process 5062 attached [pid 5062] set_robust_list(0x555556c9c660, 24) = 0 [pid 5062] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5062] setsid() = 1 [pid 5062] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5062] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5062] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5062] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5062] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5062] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5062] unshare(CLONE_NEWNS) = 0 [pid 5062] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5062] unshare(CLONE_NEWIPC) = 0 [pid 5062] unshare(CLONE_NEWCGROUP) = 0 [pid 5062] unshare(CLONE_NEWUTS) = 0 [pid 5062] unshare(CLONE_SYSVSEM) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "16777216", 8) = 8 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "536870912", 9) = 9 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1024", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "8192", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1024", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1024", 4) = 4 [pid 5062] close(3) = 0 [pid 5062] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5062] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5062] close(3) = 0 [pid 5062] getpid() = 1 [pid 5062] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< skb_headlen() (116) [ 113.218800][ T5062] WARNING: CPU: 0 PID: 5062 at net/core/dev.c:3302 skb_checksum_help+0x5e2/0x740 [ 113.228037][ T5062] Modules linked in: [ 113.231974][ T5062] CPU: 0 PID: 5062 Comm: syz-executor345 Not tainted 6.7.0-syzkaller-12263-gdbc153fd3c14 #0 [ 113.242112][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 113.252704][ T5062] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 113.258533][ T5062] 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 [ 113.278307][ T5062] RSP: 0018:ffffc90003b6f088 EFLAGS: 00010286 [ 113.284402][ T5062] RAX: 0000000000000000 RBX: ffff88801c66a500 RCX: ffffffff814e18f9 [ 113.292439][ T5062] RDX: ffff888026333b80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 113.300566][ T5062] RBP: ffff88801c66a574 R08: 0000000000000001 R09: 0000000000000000 [ 113.308653][ T5062] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 113.316667][ T5062] R13: 0000000000000229 R14: ffff88801c66a570 R15: 0000000000000227 [ 113.324768][ T5062] FS: 0000555556c9c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 113.333779][ T5062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.340437][ T5062] CR2: 000000002000d000 CR3: 0000000078af9000 CR4: 00000000003506f0 [ 113.348492][ T5062] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 113.356497][ T5062] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 113.364548][ T5062] Call Trace: [ 113.367927][ T5062] [ 113.370868][ T5062] ? show_regs+0x8f/0xa0 [ 113.375155][ T5062] ? __warn+0xe6/0x390 [ 113.379302][ T5062] ? skb_checksum_help+0x5e2/0x740 [ 113.384473][ T5062] ? report_bug+0x3bc/0x580 [ 113.389056][ T5062] ? handle_bug+0x3d/0x70 [ 113.393428][ T5062] ? exc_invalid_op+0x17/0x40 [ 113.398220][ T5062] ? asm_exc_invalid_op+0x1a/0x20 [ 113.403315][ T5062] ? __warn_printk+0x199/0x350 [ 113.408166][ T5062] ? __warn_printk+0x1a6/0x350 [ 113.412999][ T5062] ? skb_checksum_help+0x5e2/0x740 [ 113.418291][ T5062] ? skb_checksum_help+0x5e1/0x740 [ 113.423492][ T5062] ip_do_fragment+0xa15/0x18a0 [ 113.428369][ T5062] ? ip_fragment.constprop.0+0x230/0x230 [ 113.434079][ T5062] ? ip_skb_dst_mtu+0xc60/0xc60 [ 113.439030][ T5062] ? kfree_skbmem+0xef/0x1b0 [ 113.443679][ T5062] ? __kasan_slab_free+0x12c/0x1b0 [ 113.448890][ T5062] ? kmem_cache_free+0x129/0x350 [ 113.453889][ T5062] ? skb_release_data+0x5bf/0x870 [ 113.459052][ T5062] ? kfree_skbmem+0xef/0x1b0 [ 113.463750][ T5062] ip_fragment.constprop.0+0x161/0x230 [ 113.469315][ T5062] __ip_finish_output+0x49c/0x650 [ 113.474390][ T5062] ip_finish_output+0x31/0x310 [ 113.479247][ T5062] ip_mc_output+0x1dd/0x6a0 [ 113.483801][ T5062] ? __get_random_u32_below+0x4e/0xa0 [ 113.489279][ T5062] ip_local_out+0xaf/0x1a0 [ 113.493741][ T5062] iptunnel_xmit+0x5b4/0x9b0 [ 113.498434][ T5062] ip_tunnel_xmit+0x1daa/0x33b0 [ 113.503354][ T5062] ? reacquire_held_locks+0x410/0x4c0 [ 113.508918][ T5062] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 113.514271][ T5062] ? __gre_xmit+0x4f5/0x990 [ 113.518871][ T5062] ipgre_xmit+0x49b/0x980 [ 113.523256][ T5062] dev_hard_start_xmit+0x137/0x6d0 [ 113.528470][ T5062] __dev_queue_xmit+0x7b6/0x3ed0 [ 113.533491][ T5062] ? _copy_from_iter+0x2c1/0x10f0 [ 113.538618][ T5062] ? netdev_core_pick_tx+0x370/0x370 [ 113.543965][ T5062] ? skb_partial_csum_set+0x202/0x390 [ 113.549539][ T5062] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 113.556198][ T5062] ? packet_create+0x8e0/0x8e0 [ 113.561079][ T5062] packet_xmit+0x237/0x350 [ 113.565591][ T5062] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 113.571596][ T5062] packet_sendmsg+0x24a6/0x51e0 [ 113.576559][ T5062] ? preempt_count_sub+0x160/0x160 [ 113.581754][ T5062] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 113.587790][ T5062] ? aa_sk_perm+0x2f8/0xb40 [ 113.592342][ T5062] ? packet_notifier+0x8c0/0x8c0 [ 113.597312][ T5062] ? aa_af_perm+0x250/0x250 [ 113.601914][ T5062] ? import_ubuf+0x1a4/0x200 [ 113.606566][ T5062] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 113.611961][ T5062] ? packet_notifier+0x8c0/0x8c0 [ 113.616958][ T5062] __sock_sendmsg+0xd5/0x180 [ 113.621640][ T5062] ____sys_sendmsg+0x6ac/0x940 [ 113.626462][ T5062] ? copy_msghdr_from_user+0x10b/0x160 [ 113.632034][ T5062] ? kernel_sendmsg+0x50/0x50 [ 113.636885][ T5062] ___sys_sendmsg+0x135/0x1d0 [ 113.641666][ T5062] ? do_recvmmsg+0x740/0x740 [ 113.646319][ T5062] ? lock_sync+0x190/0x190 [ 113.650813][ T5062] ? ptrace_stop.part.0+0x457/0x950 [ 113.656079][ T5062] ? __fget_light+0x173/0x200 [ 113.660881][ T5062] __sys_sendmsg+0x117/0x1e0 [ 113.665525][ T5062] ? __sys_sendmsg_sock+0x30/0x30 [ 113.670628][ T5062] ? ptrace_notify+0xf4/0x130 [ 113.675383][ T5062] ? lockdep_hardirqs_on+0x7d/0x110 [ 113.680675][ T5062] ? _raw_spin_unlock_irq+0x2e/0x50 [ 113.685917][ T5062] ? ptrace_notify+0xf4/0x130 [ 113.690700][ T5062] do_syscall_64+0xd3/0x250 [ 113.695259][ T5062] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 113.701229][ T5062] RIP: 0033:0x7fd1565535d9 [ 113.705709][ T5062] 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 [ 113.725418][ T5062] RSP: 002b:00007ffd7f3d4168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.733930][ T5062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd1565535d9 [ 113.741969][ T5062] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 113.750029][ T5062] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555500000000 [ 113.758078][ T5062] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffd7f3d41b0 [ 113.766082][ T5062] R13: 00007ffd7f3d4180 R14: 0000000000000001 R15: 00007ffd7f3d41b0 [ 113.774163][ T5062] [ 113.777214][ T5062] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 113.784536][ T5062] CPU: 0 PID: 5062 Comm: syz-executor345 Not tainted 6.7.0-syzkaller-12263-gdbc153fd3c14 #0 [ 113.794631][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 113.804696][ T5062] Call Trace: [ 113.807982][ T5062] [ 113.811006][ T5062] dump_stack_lvl+0xd9/0x1b0 [ 113.815615][ T5062] panic+0x6dc/0x790 [ 113.819534][ T5062] ? panic_smp_self_stop+0xa0/0xa0 [ 113.824681][ T5062] ? show_trace_log_lvl+0x363/0x4f0 [ 113.829938][ T5062] ? check_panic_on_warn+0x1f/0xb0 [ 113.835096][ T5062] ? skb_checksum_help+0x5e2/0x740 [ 113.840232][ T5062] check_panic_on_warn+0xab/0xb0 [ 113.845214][ T5062] __warn+0xf2/0x390 [ 113.849180][ T5062] ? skb_checksum_help+0x5e2/0x740 [ 113.854316][ T5062] report_bug+0x3bc/0x580 [ 113.858666][ T5062] handle_bug+0x3d/0x70 [ 113.862846][ T5062] exc_invalid_op+0x17/0x40 [ 113.867366][ T5062] asm_exc_invalid_op+0x1a/0x20 [ 113.872234][ T5062] RIP: 0010:skb_checksum_help+0x5e2/0x740 [ 113.877988][ T5062] 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 [ 113.897722][ T5062] RSP: 0018:ffffc90003b6f088 EFLAGS: 00010286 [ 113.903802][ T5062] RAX: 0000000000000000 RBX: ffff88801c66a500 RCX: ffffffff814e18f9 [ 113.911803][ T5062] RDX: ffff888026333b80 RSI: ffffffff814e1906 RDI: 0000000000000001 [ 113.919791][ T5062] RBP: ffff88801c66a574 R08: 0000000000000001 R09: 0000000000000000 [ 113.927775][ T5062] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000080 [ 113.935754][ T5062] R13: 0000000000000229 R14: ffff88801c66a570 R15: 0000000000000227 [ 113.943777][ T5062] ? __warn_printk+0x199/0x350 [ 113.948571][ T5062] ? __warn_printk+0x1a6/0x350 [ 113.953404][ T5062] ? skb_checksum_help+0x5e1/0x740 [ 113.958845][ T5062] ip_do_fragment+0xa15/0x18a0 [ 113.963642][ T5062] ? ip_fragment.constprop.0+0x230/0x230 [ 113.969311][ T5062] ? ip_skb_dst_mtu+0xc60/0xc60 [ 113.974188][ T5062] ? kfree_skbmem+0xef/0x1b0 [ 113.978823][ T5062] ? __kasan_slab_free+0x12c/0x1b0 [ 113.983963][ T5062] ? kmem_cache_free+0x129/0x350 [ 113.988945][ T5062] ? skb_release_data+0x5bf/0x870 [ 113.994073][ T5062] ? kfree_skbmem+0xef/0x1b0 [ 113.998702][ T5062] ip_fragment.constprop.0+0x161/0x230 [ 114.004200][ T5062] __ip_finish_output+0x49c/0x650 [ 114.009265][ T5062] ip_finish_output+0x31/0x310 [ 114.014066][ T5062] ip_mc_output+0x1dd/0x6a0 [ 114.018587][ T5062] ? __get_random_u32_below+0x4e/0xa0 [ 114.023990][ T5062] ip_local_out+0xaf/0x1a0 [ 114.028445][ T5062] iptunnel_xmit+0x5b4/0x9b0 [ 114.033209][ T5062] ip_tunnel_xmit+0x1daa/0x33b0 [ 114.038099][ T5062] ? reacquire_held_locks+0x410/0x4c0 [ 114.043503][ T5062] ? ip_md_tunnel_xmit+0x1ff0/0x1ff0 [ 114.048822][ T5062] ? __gre_xmit+0x4f5/0x990 [ 114.053353][ T5062] ipgre_xmit+0x49b/0x980 [ 114.057708][ T5062] dev_hard_start_xmit+0x137/0x6d0 [ 114.062849][ T5062] __dev_queue_xmit+0x7b6/0x3ed0 [ 114.067848][ T5062] ? _copy_from_iter+0x2c1/0x10f0 [ 114.072896][ T5062] ? netdev_core_pick_tx+0x370/0x370 [ 114.078221][ T5062] ? skb_partial_csum_set+0x202/0x390 [ 114.083622][ T5062] ? virtio_net_hdr_to_skb.constprop.0+0x4ed/0x1300 [ 114.090266][ T5062] ? packet_create+0x8e0/0x8e0 [ 114.095061][ T5062] packet_xmit+0x237/0x350 [ 114.099518][ T5062] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 114.105466][ T5062] packet_sendmsg+0x24a6/0x51e0 [ 114.110369][ T5062] ? preempt_count_sub+0x160/0x160 [ 114.115498][ T5062] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 114.121418][ T5062] ? aa_sk_perm+0x2f8/0xb40 [ 114.125953][ T5062] ? packet_notifier+0x8c0/0x8c0 [ 114.130925][ T5062] ? aa_af_perm+0x250/0x250 [ 114.135452][ T5062] ? import_ubuf+0x1a4/0x200 [ 114.140063][ T5062] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 114.145373][ T5062] ? packet_notifier+0x8c0/0x8c0 [ 114.150343][ T5062] __sock_sendmsg+0xd5/0x180 [ 114.154965][ T5062] ____sys_sendmsg+0x6ac/0x940 [ 114.159757][ T5062] ? copy_msghdr_from_user+0x10b/0x160 [ 114.165233][ T5062] ? kernel_sendmsg+0x50/0x50 [ 114.169967][ T5062] ___sys_sendmsg+0x135/0x1d0 [ 114.174661][ T5062] ? do_recvmmsg+0x740/0x740 [ 114.179295][ T5062] ? lock_sync+0x190/0x190 [ 114.183742][ T5062] ? ptrace_stop.part.0+0x457/0x950 [ 114.188975][ T5062] ? __fget_light+0x173/0x200 [ 114.193698][ T5062] __sys_sendmsg+0x117/0x1e0 [ 114.198302][ T5062] ? __sys_sendmsg_sock+0x30/0x30 [ 114.203340][ T5062] ? ptrace_notify+0xf4/0x130 [ 114.208065][ T5062] ? lockdep_hardirqs_on+0x7d/0x110 [ 114.213292][ T5062] ? _raw_spin_unlock_irq+0x2e/0x50 [ 114.218509][ T5062] ? ptrace_notify+0xf4/0x130 [ 114.223208][ T5062] do_syscall_64+0xd3/0x250 [ 114.227736][ T5062] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 114.233646][ T5062] RIP: 0033:0x7fd1565535d9 [ 114.238073][ T5062] 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 [ 114.257701][ T5062] RSP: 002b:00007ffd7f3d4168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 114.266148][ T5062] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd1565535d9 [ 114.274130][ T5062] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 114.282130][ T5062] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555500000000 [ 114.290121][ T5062] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffd7f3d41b0 [ 114.298113][ T5062] R13: 00007ffd7f3d4180 R14: 0000000000000001 R15: 00007ffd7f3d41b0 [ 114.306215][ T5062] [ 114.309547][ T5062] Kernel Offset: disabled [ 114.313982][ T5062] Rebooting in 86400 seconds..