./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1289697406 <...> Warning: Permanently added '10.128.10.26' (ED25519) to the list of known hosts. execve("./syz-executor1289697406", ["./syz-executor1289697406"], 0x7fff3bc1cf40 /* 10 vars */) = 0 brk(NULL) = 0x555556960000 brk(0x555556960d00) = 0x555556960d00 arch_prctl(ARCH_SET_FS, 0x555556960380) = 0 set_tid_address(0x555556960650) = 5043 set_robust_list(0x555556960660, 24) = 0 rseq(0x555556960ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1289697406", 4096) = 28 getrandom("\x50\x8e\x38\xe2\xef\xbb\x6a\xdc", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556960d00 brk(0x555556981d00) = 0x555556981d00 brk(0x555556982000) = 0x555556982000 mprotect(0x7fea7b373000, 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=0x555556960650) = 5044 ./strace-static-x86_64: Process 5044 attached [pid 5044] set_robust_list(0x555556960660, 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 a5 34 87 06 31 ff 89 ee e8 39 11 57 f9 40 84 ed 75 [ 92.046539][ T5044] RSP: 0018:ffffc90003a7f0b8 EFLAGS: 00010293 [ 92.052655][ T5044] RAX: 0000000000000000 RBX: ffff8880204df140 RCX: 0000000000000000 [ 92.060684][ T5044] RDX: ffff888025150000 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 92.068708][ T5044] RBP: ffff8880204df1b4 R08: 0000000000000006 R09: 00000000000006aa [ 92.076736][ T5044] R10: 0000000000000688 R11: ffffffff8a3b9fb8 R12: 00000000000006a8 [ 92.084818][ T5044] R13: 00000000000006a8 R14: 0000000000000688 R15: 00000000000006aa [ 92.092848][ T5044] FS: 0000555556960380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 92.101837][ T5044] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.108476][ T5044] CR2: 0000000020001000 CR3: 0000000076b1a000 CR4: 00000000003506e0 [ 92.116513][ T5044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.124511][ T5044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.132535][ T5044] Call Trace: [ 92.135831][ T5044] [ 92.138819][ T5044] ? show_regs+0x8f/0xa0 [ 92.143103][ T5044] ? __warn+0xe6/0x380 [ 92.147228][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.152380][ T5044] ? report_bug+0x3bc/0x580 [ 92.156951][ T5044] ? handle_bug+0x3c/0x70 [ 92.161321][ T5044] ? exc_invalid_op+0x17/0x40 [ 92.166027][ T5044] ? asm_exc_invalid_op+0x1a/0x20 [ 92.171574][ T5044] ? do_syscall_64+0x38/0xb0 [ 92.176210][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.181383][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.186580][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.191732][ T5044] ip_do_fragment+0xa1b/0x18b0 [ 92.196562][ T5044] ? ip_fragment.constprop.0+0x230/0x230 [ 92.202236][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.207054][ T5044] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 92.213078][ T5044] ? ip_frag_next+0xa40/0xa40 [ 92.217842][ T5044] ? slab_free_freelist_hook+0x114/0x1e0 [ 92.223542][ T5044] ip_fragment.constprop.0+0x161/0x230 [ 92.229076][ T5044] __ip_finish_output+0x49a/0x640 [ 92.234152][ T5044] ip_finish_output+0x31/0x310 [ 92.238989][ T5044] ip_output+0x198/0x310 [ 92.243278][ T5044] ip_local_out+0xaf/0x190 [ 92.247756][ T5044] iptunnel_xmit+0x61a/0xa30 [ 92.252396][ T5044] ip_tunnel_xmit+0x1e14/0x3350 [ 92.257337][ T5044] ? print_irqtrace_events+0x228/0x270 [ 92.262863][ T5044] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 92.268230][ T5044] ? skb_mac_gso_segment+0x3d8/0x610 [ 92.273567][ T5044] ? __gre_xmit+0x4f5/0x990 [ 92.278161][ T5044] ipgre_xmit+0x63c/0x910 [ 92.282533][ T5044] dev_hard_start_xmit+0x13d/0x6c0 [ 92.287714][ T5044] __dev_queue_xmit+0x9be/0x3d60 [ 92.292701][ T5044] ? netdev_core_pick_tx+0x390/0x390 [ 92.298051][ T5044] ? skb_partial_csum_set+0x202/0x390 [ 92.303463][ T5044] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 92.310116][ T5044] ? packet_release+0xdc0/0xdc0 [ 92.314998][ T5044] packet_xmit+0x257/0x380 [ 92.319463][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.325408][ T5044] packet_sendmsg+0x24c7/0x5570 [ 92.330319][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.335120][ T5044] ? preempt_count_sub+0x150/0x150 [ 92.340964][ T5044] ? newidle_balance+0x83d/0x1210 [ 92.346013][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.351995][ T5044] ? aa_sk_perm+0x2c1/0xae0 [ 92.356578][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.361358][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.367305][ T5044] ? aa_af_perm+0x260/0x260 [ 92.371858][ T5044] ? import_ubuf+0x1f5/0x260 [ 92.376527][ T5044] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 92.381861][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.387920][ T5044] sock_sendmsg+0xd9/0x180 [ 92.392473][ T5044] ____sys_sendmsg+0x6ac/0x940 [ 92.397298][ T5044] ? copy_msghdr_from_user+0x10b/0x160 [ 92.402801][ T5044] ? kernel_sendmsg+0x50/0x50 [ 92.407542][ T5044] ? finish_task_switch.isra.0+0x2eb/0xc90 [ 92.413387][ T5044] ? __switch_to+0x73d/0x1340 [ 92.418230][ T5044] ___sys_sendmsg+0x135/0x1d0 [ 92.422957][ T5044] ? do_recvmmsg+0x740/0x740 [ 92.427629][ T5044] ? lock_sync+0x190/0x190 [ 92.432103][ T5044] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 92.437367][ T5044] ? __fget_light+0x1fc/0x260 [ 92.442066][ T5044] __sys_sendmsg+0x117/0x1e0 [ 92.446717][ T5044] ? __sys_sendmsg_sock+0x30/0x30 [ 92.451794][ T5044] ? ptrace_notify+0xf4/0x130 [ 92.456547][ T5044] ? _raw_spin_unlock_irq+0x2e/0x50 [ 92.461776][ T5044] ? ptrace_notify+0xf4/0x130 [ 92.466521][ T5044] do_syscall_64+0x38/0xb0 [ 92.470978][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 92.476938][ T5044] RIP: 0033:0x7fea7b2fb499 [ 92.481394][ 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 [ 92.501139][ T5044] RSP: 002b:00007ffd29aaab28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.509643][ T5044] RAX: ffffffffffffffda RBX: 00007fea7b348390 RCX: 00007fea7b2fb499 [ 92.517826][ T5044] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 92.525865][ T5044] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 92.533979][ T5044] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffd29aaab70 [ 92.541997][ T5044] R13: 00007ffd29aaab40 R14: 0000000000000001 R15: 00007ffd29aaab70 [ 92.550044][ T5044] [ 92.553085][ T5044] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 92.560379][ T5044] CPU: 1 PID: 5044 Comm: syz-executor128 Not tainted 6.5.0-rc6-next-20230815-syzkaller #0 [ 92.570277][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 92.580337][ T5044] Call Trace: [ 92.583615][ T5044] [ 92.586550][ T5044] dump_stack_lvl+0xd9/0x1b0 [ 92.591160][ T5044] panic+0x6a6/0x750 [ 92.595068][ T5044] ? panic_smp_self_stop+0xa0/0xa0 [ 92.600209][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.605337][ T5044] check_panic_on_warn+0xab/0xb0 [ 92.610306][ T5044] __warn+0xf2/0x380 [ 92.614251][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.619388][ T5044] report_bug+0x3bc/0x580 [ 92.623736][ T5044] handle_bug+0x3c/0x70 [ 92.627907][ T5044] exc_invalid_op+0x17/0x40 [ 92.632424][ T5044] asm_exc_invalid_op+0x1a/0x20 [ 92.637293][ T5044] RIP: 0010:skb_checksum_help+0x4b5/0x5c0 [ 92.643030][ T5044] Code: f9 40 84 ed 75 dd e8 3a 16 57 f9 31 d2 48 89 de 48 c7 c7 40 b4 a2 8b c6 05 bb 34 87 06 01 e8 22 27 f8 ff eb be e8 1b 16 57 f9 <0f> 0b 0f b6 2d a5 34 87 06 31 ff 89 ee e8 39 11 57 f9 40 84 ed 75 [ 92.662648][ T5044] RSP: 0018:ffffc90003a7f0b8 EFLAGS: 00010293 [ 92.668729][ T5044] RAX: 0000000000000000 RBX: ffff8880204df140 RCX: 0000000000000000 [ 92.676705][ T5044] RDX: ffff888025150000 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 92.684855][ T5044] RBP: ffff8880204df1b4 R08: 0000000000000006 R09: 00000000000006aa [ 92.692830][ T5044] R10: 0000000000000688 R11: ffffffff8a3b9fb8 R12: 00000000000006a8 [ 92.700818][ T5044] R13: 00000000000006a8 R14: 0000000000000688 R15: 00000000000006aa [ 92.708803][ T5044] ? do_syscall_64+0x38/0xb0 [ 92.713502][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.718628][ T5044] ? skb_checksum_help+0x4b5/0x5c0 [ 92.723752][ T5044] ip_do_fragment+0xa1b/0x18b0 [ 92.728541][ T5044] ? ip_fragment.constprop.0+0x230/0x230 [ 92.734189][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.738968][ T5044] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 92.744961][ T5044] ? ip_frag_next+0xa40/0xa40 [ 92.749664][ T5044] ? slab_free_freelist_hook+0x114/0x1e0 [ 92.755326][ T5044] ip_fragment.constprop.0+0x161/0x230 [ 92.760816][ T5044] __ip_finish_output+0x49a/0x640 [ 92.765889][ T5044] ip_finish_output+0x31/0x310 [ 92.770676][ T5044] ip_output+0x198/0x310 [ 92.774933][ T5044] ip_local_out+0xaf/0x190 [ 92.779384][ T5044] iptunnel_xmit+0x61a/0xa30 [ 92.784002][ T5044] ip_tunnel_xmit+0x1e14/0x3350 [ 92.788878][ T5044] ? print_irqtrace_events+0x228/0x270 [ 92.794370][ T5044] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 92.799695][ T5044] ? skb_mac_gso_segment+0x3d8/0x610 [ 92.804994][ T5044] ? __gre_xmit+0x4f5/0x990 [ 92.809519][ T5044] ipgre_xmit+0x63c/0x910 [ 92.813872][ T5044] dev_hard_start_xmit+0x13d/0x6c0 [ 92.818999][ T5044] __dev_queue_xmit+0x9be/0x3d60 [ 92.823957][ T5044] ? netdev_core_pick_tx+0x390/0x390 [ 92.829255][ T5044] ? skb_partial_csum_set+0x202/0x390 [ 92.834643][ T5044] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 92.841253][ T5044] ? packet_release+0xdc0/0xdc0 [ 92.846111][ T5044] packet_xmit+0x257/0x380 [ 92.850536][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.856466][ T5044] packet_sendmsg+0x24c7/0x5570 [ 92.861459][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.866348][ T5044] ? preempt_count_sub+0x150/0x150 [ 92.871497][ T5044] ? newidle_balance+0x83d/0x1210 [ 92.876540][ T5044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.882467][ T5044] ? aa_sk_perm+0x2c1/0xae0 [ 92.886988][ T5044] ? rcu_is_watching+0x12/0xb0 [ 92.891760][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.897664][ T5044] ? aa_af_perm+0x260/0x260 [ 92.902174][ T5044] ? import_ubuf+0x1f5/0x260 [ 92.906794][ T5044] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 92.912128][ T5044] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.918056][ T5044] sock_sendmsg+0xd9/0x180 [ 92.922488][ T5044] ____sys_sendmsg+0x6ac/0x940 [ 92.927268][ T5044] ? copy_msghdr_from_user+0x10b/0x160 [ 92.932773][ T5044] ? kernel_sendmsg+0x50/0x50 [ 92.937467][ T5044] ? finish_task_switch.isra.0+0x2eb/0xc90 [ 92.943284][ T5044] ? __switch_to+0x73d/0x1340 [ 92.947985][ T5044] ___sys_sendmsg+0x135/0x1d0 [ 92.952695][ T5044] ? do_recvmmsg+0x740/0x740 [ 92.957327][ T5044] ? lock_sync+0x190/0x190 [ 92.961793][ T5044] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 92.967012][ T5044] ? __fget_light+0x1fc/0x260 [ 92.971700][ T5044] __sys_sendmsg+0x117/0x1e0 [ 92.976311][ T5044] ? __sys_sendmsg_sock+0x30/0x30 [ 92.981351][ T5044] ? ptrace_notify+0xf4/0x130 [ 92.986046][ T5044] ? _raw_spin_unlock_irq+0x2e/0x50 [ 92.991253][ T5044] ? ptrace_notify+0xf4/0x130 [ 92.995943][ T5044] do_syscall_64+0x38/0xb0 [ 93.000381][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 93.006290][ T5044] RIP: 0033:0x7fea7b2fb499 [ 93.010719][ 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 [ 93.030336][ T5044] RSP: 002b:00007ffd29aaab28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.038759][ T5044] RAX: ffffffffffffffda RBX: 00007fea7b348390 RCX: 00007fea7b2fb499 [ 93.046748][ T5044] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 93.054734][ T5044] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 93.062732][ T5044] R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffd29aaab70 [ 93.070727][ T5044] R13: 00007ffd29aaab40 R14: 0000000000000001 R15: 00007ffd29aaab70 [ 93.078717][ T5044] [ 93.081999][ T5044] Kernel Offset: disabled [ 93.086330][ T5044] Rebooting in 86400 seconds..