./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2181928029 <...> Warning: Permanently added '10.128.0.165' (ED25519) to the list of known hosts. execve("./syz-executor2181928029", ["./syz-executor2181928029"], 0x7fff86530270 /* 10 vars */) = 0 brk(NULL) = 0x555556cb9000 brk(0x555556cb9d00) = 0x555556cb9d00 arch_prctl(ARCH_SET_FS, 0x555556cb9380) = 0 set_tid_address(0x555556cb9650) = 5043 set_robust_list(0x555556cb9660, 24) = 0 rseq(0x555556cb9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2181928029", 4096) = 28 getrandom("\xcf\xb5\xb2\x74\x95\xf7\x06\xaa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556cb9d00 brk(0x555556cdad00) = 0x555556cdad00 brk(0x555556cdb000) = 0x555556cdb000 mprotect(0x7fef3e757000, 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=0x555556cb9650) = 5044 ./strace-static-x86_64: Process 5044 attached [pid 5044] set_robust_list(0x555556cb9660, 24) = 0 [pid 5044] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5044] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5044] setsid() = 1 [pid 5044] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5044] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5044] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5044] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5044] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5044] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5044] unshare(CLONE_NEWNS) = 0 [pid 5044] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5044] unshare(CLONE_NEWIPC) = 0 [pid 5044] unshare(CLONE_NEWCGROUP) = 0 [pid 5044] unshare(CLONE_NEWUTS) = 0 [pid 5044] unshare(CLONE_SYSVSEM) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "16777216", 8) = 8 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "536870912", 9) = 9 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1024", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "8192", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1024", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1024", 4) = 4 [pid 5044] close(3) = 0 [pid 5044] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5044] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5044] close(3) = 0 [pid 5044] getpid() = 1 [pid 5044] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f b6 2d 83 62 85 06 31 ff 89 ee e8 59 e6 54 f9 40 84 ed 75 [ 90.506097][ T5044] RSP: 0018:ffffc90003c2f0a0 EFLAGS: 00010293 [ 90.512169][ T5044] RAX: 0000000000000000 RBX: ffff88802709db40 RCX: 0000000000000000 [ 90.520164][ T5044] RDX: ffff88801ab79dc0 RSI: ffffffff8832ed15 RDI: 0000000000000006 [ 90.528184][ T5044] RBP: ffff88802709dbb4 R08: 0000000000000006 R09: 0000000000000529 [ 90.536189][ T5044] R10: 000000000000007c R11: ffffffff8a60008b R12: 0000000000000527 [ 90.544180][ T5044] R13: 0000000000000527 R14: 000000000000007c R15: 0000000000000529 [ 90.552153][ T5044] FS: 0000555556cb9380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 90.561152][ T5044] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.567774][ T5044] CR2: 0000000020001000 CR3: 0000000028054000 CR4: 00000000003506f0 [ 90.575778][ T5044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.583779][ T5044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.591745][ T5044] Call Trace: [ 90.595057][ T5044] [ 90.597996][ T5044] ? show_regs+0x8f/0xa0 [ 90.602240][ T5044] ? __warn+0xe6/0x380 [ 90.606335][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 90.611479][ T5044] ? report_bug+0x3bc/0x580 [ 90.616032][ T5044] ? handle_bug+0x3c/0x70 [ 90.620409][ T5044] ? exc_invalid_op+0x17/0x40 [ 90.625139][ T5044] ? asm_exc_invalid_op+0x1a/0x20 [ 90.630191][ T5044] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 90.636286][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 90.641431][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 90.646667][ T5044] ip_do_fragment+0xa1b/0x18b0 [ 90.651470][ T5044] ? ip_fragment.constprop.0+0x230/0x230 [ 90.657148][ T5044] ? ip_frag_next+0xa40/0xa40 [ 90.661879][ T5044] ip_fragment.constprop.0+0x161/0x230 [ 90.667386][ T5044] __ip_finish_output+0x49a/0x640 [ 90.672449][ T5044] ip_finish_output+0x31/0x310 [ 90.677266][ T5044] ip_mc_output+0x1dd/0x6a0 [ 90.681805][ T5044] ip_local_out+0xaf/0x190 [ 90.686260][ T5044] iptunnel_xmit+0x61a/0x9e0 [ 90.690885][ T5044] ip_tunnel_xmit+0x1e14/0x3350 [ 90.695783][ T5044] ? check_irq_usage+0x1588/0x1c70 [ 90.700949][ T5044] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 90.706287][ T5044] ? skb_mac_gso_segment+0x3d8/0x610 [ 90.711606][ T5044] ? __gre_xmit+0x4f5/0x990 [ 90.716176][ T5044] ipgre_xmit+0x63c/0x910 [ 90.720527][ T5044] dev_hard_start_xmit+0x13d/0x6c0 [ 90.725687][ T5044] __dev_queue_xmit+0x9be/0x3d80 [ 90.730672][ T5044] ? netdev_core_pick_tx+0x390/0x390 [ 90.736004][ T5044] ? skb_partial_csum_set+0x202/0x390 [ 90.741434][ T5044] ? virtio_net_hdr_to_skb.constprop.0+0x4d9/0x11e0 [ 90.748057][ T5044] ? packet_release+0xdc0/0xdc0 [ 90.752935][ T5044] packet_xmit+0x257/0x380 [ 90.757389][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 90.763334][ T5044] packet_sendmsg+0x24d9/0x5580 [ 90.768231][ T5044] ? preempt_count_sub+0x150/0x150 [ 90.773372][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 90.779325][ T5044] ? aa_sk_perm+0x2c1/0xae0 [ 90.783892][ T5044] ? rcu_is_watching+0x12/0xb0 [ 90.788671][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 90.794603][ T5044] ? aa_af_perm+0x260/0x260 [ 90.799133][ T5044] ? import_ubuf+0x1f5/0x260 [ 90.803787][ T5044] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 90.809106][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 90.815067][ T5044] sock_sendmsg+0xd9/0x180 [ 90.819532][ T5044] ____sys_sendmsg+0x6ac/0x940 [ 90.824339][ T5044] ? copy_msghdr_from_user+0x10b/0x160 [ 90.829817][ T5044] ? kernel_sendmsg+0x50/0x50 [ 90.834546][ T5044] ? finish_task_switch.isra.0+0x216/0xc90 [ 90.840392][ T5044] ? __switch_to+0x73d/0x1340 [ 90.845149][ T5044] ___sys_sendmsg+0x135/0x1d0 [ 90.849852][ T5044] ? do_recvmmsg+0x740/0x740 [ 90.854572][ T5044] ? lock_sync+0x190/0x190 [ 90.859028][ T5044] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 90.864281][ T5044] ? __fget_light+0x1fc/0x260 [ 90.868987][ T5044] __sys_sendmsg+0x117/0x1e0 [ 90.873575][ T5044] ? __sys_sendmsg_sock+0x30/0x30 [ 90.878642][ T5044] ? ptrace_notify+0xf4/0x130 [ 90.883355][ T5044] ? _raw_spin_unlock_irq+0x2e/0x50 [ 90.888606][ T5044] ? ptrace_notify+0xf4/0x130 [ 90.893303][ T5044] do_syscall_64+0x38/0xb0 [ 90.897753][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 90.903735][ T5044] RIP: 0033:0x7fef3e6df4d9 [ 90.908162][ T5044] 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 [ 90.927807][ T5044] RSP: 002b:00007ffe6607dcf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 90.936259][ T5044] RAX: ffffffffffffffda RBX: 00007fef3e72c390 RCX: 00007fef3e6df4d9 [ 90.944266][ T5044] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 90.952251][ T5044] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 90.960262][ T5044] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffe6607dd40 [ 90.968303][ T5044] R13: 00007ffe6607dd10 R14: 0000000000000001 R15: 00007ffe6607dd40 [ 90.976331][ T5044] [ 90.979368][ T5044] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 90.986652][ T5044] CPU: 0 PID: 5044 Comm: syz-executor218 Not tainted 6.6.0-rc1-syzkaller-00336-gd692873cbe86 #0 [ 90.997080][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 91.007136][ T5044] Call Trace: [ 91.010415][ T5044] [ 91.013346][ T5044] dump_stack_lvl+0xd9/0x1b0 [ 91.017946][ T5044] panic+0x6a6/0x750 [ 91.021851][ T5044] ? panic_smp_self_stop+0xa0/0xa0 [ 91.026973][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 91.032117][ T5044] check_panic_on_warn+0xab/0xb0 [ 91.037074][ T5044] __warn+0xf2/0x380 [ 91.040972][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 91.046126][ T5044] report_bug+0x3bc/0x580 [ 91.050455][ T5044] handle_bug+0x3c/0x70 [ 91.054624][ T5044] exc_invalid_op+0x17/0x40 [ 91.059143][ T5044] asm_exc_invalid_op+0x1a/0x20 [ 91.064022][ T5044] RIP: 0010:skb_checksum_help+0x4b5/0x5c0 [ 91.069758][ T5044] Code: f9 40 84 ed 75 dd e8 5a eb 54 f9 31 d2 48 89 de 48 c7 c7 80 0d a3 8b c6 05 99 62 85 06 01 e8 02 1c f8 ff eb be e8 3b eb 54 f9 <0f> 0b 0f b6 2d 83 62 85 06 31 ff 89 ee e8 59 e6 54 f9 40 84 ed 75 [ 91.089363][ T5044] RSP: 0018:ffffc90003c2f0a0 EFLAGS: 00010293 [ 91.095433][ T5044] RAX: 0000000000000000 RBX: ffff88802709db40 RCX: 0000000000000000 [ 91.103403][ T5044] RDX: ffff88801ab79dc0 RSI: ffffffff8832ed15 RDI: 0000000000000006 [ 91.111372][ T5044] RBP: ffff88802709dbb4 R08: 0000000000000006 R09: 0000000000000529 [ 91.119344][ T5044] R10: 000000000000007c R11: ffffffff8a60008b R12: 0000000000000527 [ 91.127320][ T5044] R13: 0000000000000527 R14: 000000000000007c R15: 0000000000000529 [ 91.135292][ T5044] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 91.141366][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 91.146582][ T5044] ip_do_fragment+0xa1b/0x18b0 [ 91.151372][ T5044] ? ip_fragment.constprop.0+0x230/0x230 [ 91.157028][ T5044] ? ip_frag_next+0xa40/0xa40 [ 91.161725][ T5044] ip_fragment.constprop.0+0x161/0x230 [ 91.167205][ T5044] __ip_finish_output+0x49a/0x640 [ 91.172248][ T5044] ip_finish_output+0x31/0x310 [ 91.177024][ T5044] ip_mc_output+0x1dd/0x6a0 [ 91.181539][ T5044] ip_local_out+0xaf/0x190 [ 91.185970][ T5044] iptunnel_xmit+0x61a/0x9e0 [ 91.190604][ T5044] ip_tunnel_xmit+0x1e14/0x3350 [ 91.195471][ T5044] ? check_irq_usage+0x1588/0x1c70 [ 91.200602][ T5044] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 91.205897][ T5044] ? skb_mac_gso_segment+0x3d8/0x610 [ 91.211215][ T5044] ? __gre_xmit+0x4f5/0x990 [ 91.215722][ T5044] ipgre_xmit+0x63c/0x910 [ 91.220064][ T5044] dev_hard_start_xmit+0x13d/0x6c0 [ 91.225200][ T5044] __dev_queue_xmit+0x9be/0x3d80 [ 91.230158][ T5044] ? netdev_core_pick_tx+0x390/0x390 [ 91.235456][ T5044] ? skb_partial_csum_set+0x202/0x390 [ 91.240856][ T5044] ? virtio_net_hdr_to_skb.constprop.0+0x4d9/0x11e0 [ 91.247453][ T5044] ? packet_release+0xdc0/0xdc0 [ 91.252306][ T5044] packet_xmit+0x257/0x380 [ 91.256739][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 91.262645][ T5044] packet_sendmsg+0x24d9/0x5580 [ 91.267520][ T5044] ? preempt_count_sub+0x150/0x150 [ 91.272642][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 91.278556][ T5044] ? aa_sk_perm+0x2c1/0xae0 [ 91.283064][ T5044] ? rcu_is_watching+0x12/0xb0 [ 91.287840][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 91.293742][ T5044] ? aa_af_perm+0x260/0x260 [ 91.298276][ T5044] ? import_ubuf+0x1f5/0x260 [ 91.302878][ T5044] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 91.308172][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 91.314086][ T5044] sock_sendmsg+0xd9/0x180 [ 91.318531][ T5044] ____sys_sendmsg+0x6ac/0x940 [ 91.323318][ T5044] ? copy_msghdr_from_user+0x10b/0x160 [ 91.328776][ T5044] ? kernel_sendmsg+0x50/0x50 [ 91.333459][ T5044] ? finish_task_switch.isra.0+0x216/0xc90 [ 91.339272][ T5044] ? __switch_to+0x73d/0x1340 [ 91.343964][ T5044] ___sys_sendmsg+0x135/0x1d0 [ 91.348637][ T5044] ? do_recvmmsg+0x740/0x740 [ 91.353227][ T5044] ? lock_sync+0x190/0x190 [ 91.357665][ T5044] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 91.362875][ T5044] ? __fget_light+0x1fc/0x260 [ 91.367563][ T5044] __sys_sendmsg+0x117/0x1e0 [ 91.372165][ T5044] ? __sys_sendmsg_sock+0x30/0x30 [ 91.377190][ T5044] ? ptrace_notify+0xf4/0x130 [ 91.381876][ T5044] ? _raw_spin_unlock_irq+0x2e/0x50 [ 91.387086][ T5044] ? ptrace_notify+0xf4/0x130 [ 91.391766][ T5044] do_syscall_64+0x38/0xb0 [ 91.396191][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 91.402090][ T5044] RIP: 0033:0x7fef3e6df4d9 [ 91.406523][ T5044] 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 [ 91.426161][ T5044] RSP: 002b:00007ffe6607dcf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.434605][ T5044] RAX: ffffffffffffffda RBX: 00007fef3e72c390 RCX: 00007fef3e6df4d9 [ 91.442681][ T5044] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 91.450657][ T5044] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 91.458629][ T5044] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffe6607dd40 [ 91.466603][ T5044] R13: 00007ffe6607dd10 R14: 0000000000000001 R15: 00007ffe6607dd40 [ 91.474682][ T5044] [ 91.478039][ T5044] Kernel Offset: disabled [ 91.482379][ T5044] Rebooting in 86400 seconds..