./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3353723575 <...> Warning: Permanently added '10.128.0.121' (ED25519) to the list of known hosts. execve("./syz-executor3353723575", ["./syz-executor3353723575"], 0x7ffd1dfdcca0 /* 10 vars */) = 0 brk(NULL) = 0x555556641000 brk(0x555556641d00) = 0x555556641d00 arch_prctl(ARCH_SET_FS, 0x555556641380) = 0 set_tid_address(0x555556641650) = 5044 set_robust_list(0x555556641660, 24) = 0 rseq(0x555556641ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3353723575", 4096) = 28 getrandom("\x42\x51\x75\xe3\xae\x04\x36\x79", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556641d00 brk(0x555556662d00) = 0x555556662d00 brk(0x555556663000) = 0x555556663000 mprotect(0x7f8281954000, 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=0x555556641650) = 5045 ./strace-static-x86_64: Process 5045 attached [pid 5045] set_robust_list(0x555556641660, 24) = 0 [pid 5045] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5045] setsid() = 1 [pid 5045] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5045] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5045] unshare(CLONE_NEWNS) = 0 [pid 5045] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5045] unshare(CLONE_NEWIPC) = 0 [pid 5045] unshare(CLONE_NEWCGROUP) = 0 [pid 5045] unshare(CLONE_NEWUTS) = 0 [pid 5045] unshare(CLONE_SYSVSEM) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "16777216", 8) = 8 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "536870912", 9) = 9 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "8192", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024", 4) = 4 [pid 5045] close(3) = 0 [pid 5045] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5045] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5045] close(3) = 0 [pid 5045] getpid() = 1 [pid 5045] 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 [ 91.599259][ T5045] RSP: 0018:ffffc9000396f0b8 EFLAGS: 00010293 [ 91.605334][ T5045] RAX: 0000000000000000 RBX: ffff8880163e4000 RCX: 0000000000000000 [ 91.613466][ T5045] RDX: ffff888025855940 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 91.621775][ T5045] RBP: ffff8880163e4074 R08: 0000000000000006 R09: 00000000000006aa [ 91.629900][ T5045] R10: 0000000000000688 R11: ffffffff8a3b9fb8 R12: 00000000000006a8 [ 91.638028][ T5045] R13: 00000000000006a8 R14: 0000000000000688 R15: 00000000000006aa [ 91.646012][ T5045] FS: 0000555556641380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 91.655005][ T5045] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.661735][ T5045] CR2: 0000000020001000 CR3: 0000000072530000 CR4: 00000000003506f0 [ 91.669763][ T5045] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.677800][ T5045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.685811][ T5045] Call Trace: [ 91.689153][ T5045] [ 91.692116][ T5045] ? show_regs+0x8f/0xa0 [ 91.696396][ T5045] ? __warn+0xe6/0x380 [ 91.700518][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 91.705666][ T5045] ? report_bug+0x3bc/0x580 [ 91.710228][ T5045] ? handle_bug+0x3c/0x70 [ 91.714955][ T5045] ? exc_invalid_op+0x17/0x40 [ 91.719693][ T5045] ? asm_exc_invalid_op+0x1a/0x20 [ 91.724773][ T5045] ? do_syscall_64+0x38/0xb0 [ 91.729424][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 91.734614][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 91.739791][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 91.744943][ T5045] ip_do_fragment+0xa1b/0x18b0 [ 91.749767][ T5045] ? ip_fragment.constprop.0+0x230/0x230 [ 91.755442][ T5045] ? rcu_is_watching+0x12/0xb0 [ 91.760258][ T5045] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 91.766276][ T5045] ? ip_frag_next+0xa40/0xa40 [ 91.771014][ T5045] ? slab_free_freelist_hook+0x114/0x1e0 [ 91.776698][ T5045] ip_fragment.constprop.0+0x161/0x230 [ 91.782240][ T5045] __ip_finish_output+0x49a/0x640 [ 91.787311][ T5045] ip_finish_output+0x31/0x310 [ 91.792138][ T5045] ip_output+0x198/0x310 [ 91.796427][ T5045] ip_local_out+0xaf/0x190 [ 91.800901][ T5045] iptunnel_xmit+0x61a/0xa30 [ 91.805535][ T5045] ip_tunnel_xmit+0x1e14/0x3350 [ 91.810465][ T5045] ? print_irqtrace_events+0x228/0x270 [ 91.815989][ T5045] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 91.821375][ T5045] ? skb_mac_gso_segment+0x3d8/0x610 [ 91.826699][ T5045] ? __gre_xmit+0x4f5/0x990 [ 91.831273][ T5045] ipgre_xmit+0x63c/0x910 [ 91.835651][ T5045] dev_hard_start_xmit+0x13d/0x6c0 [ 91.840823][ T5045] __dev_queue_xmit+0x9be/0x3d60 [ 91.845809][ T5045] ? netdev_core_pick_tx+0x390/0x390 [ 91.851150][ T5045] ? skb_partial_csum_set+0x202/0x390 [ 91.856564][ T5045] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 91.863387][ T5045] ? packet_release+0xdc0/0xdc0 [ 91.868294][ T5045] packet_xmit+0x257/0x380 [ 91.872722][ T5045] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 91.878686][ T5045] packet_sendmsg+0x24c7/0x5570 [ 91.883586][ T5045] ? preempt_count_sub+0x150/0x150 [ 91.888769][ T5045] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 91.894715][ T5045] ? aa_sk_perm+0x2c1/0xae0 [ 91.899440][ T5045] ? rcu_is_watching+0x12/0xb0 [ 91.904252][ T5045] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 91.910192][ T5045] ? aa_af_perm+0x260/0x260 [ 91.914728][ T5045] ? import_ubuf+0x1f5/0x260 [ 91.919482][ T5045] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 91.924815][ T5045] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 91.930771][ T5045] sock_sendmsg+0xd9/0x180 [ 91.935226][ T5045] ____sys_sendmsg+0x6ac/0x940 [ 91.940072][ T5045] ? copy_msghdr_from_user+0x10b/0x160 [ 91.945582][ T5045] ? kernel_sendmsg+0x50/0x50 [ 91.950407][ T5045] ? finish_task_switch.isra.0+0x216/0xc90 [ 91.956247][ T5045] ? __switch_to+0x73d/0x1340 [ 91.960980][ T5045] ___sys_sendmsg+0x135/0x1d0 [ 91.965705][ T5045] ? do_recvmmsg+0x740/0x740 [ 91.970363][ T5045] ? lock_sync+0x190/0x190 [ 91.974823][ T5045] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 91.980115][ T5045] ? __fget_light+0x1fc/0x260 [ 91.984834][ T5045] __sys_sendmsg+0x117/0x1e0 [ 91.989505][ T5045] ? __sys_sendmsg_sock+0x30/0x30 [ 91.994572][ T5045] ? ptrace_notify+0xf4/0x130 [ 91.999307][ T5045] ? _raw_spin_unlock_irq+0x2e/0x50 [ 92.004536][ T5045] ? ptrace_notify+0xf4/0x130 [ 92.009273][ T5045] do_syscall_64+0x38/0xb0 [ 92.013738][ T5045] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 92.019698][ T5045] RIP: 0033:0x7f82818dc499 [ 92.024136][ T5045] 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 [ 92.043854][ T5045] RSP: 002b:00007fff9c13c7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.052413][ T5045] RAX: ffffffffffffffda RBX: 00007f8281929390 RCX: 00007f82818dc499 [ 92.060434][ T5045] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 92.068467][ T5045] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 92.076466][ T5045] R10: 0000000000000004 R11: 0000000000000246 R12: 00007fff9c13c830 [ 92.084604][ T5045] R13: 00007fff9c13c800 R14: 0000000000000001 R15: 00007fff9c13c830 [ 92.092675][ T5045] [ 92.095718][ T5045] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 92.103008][ T5045] CPU: 0 PID: 5045 Comm: syz-executor335 Not tainted 6.5.0-rc6-next-20230815-syzkaller #0 [ 92.112935][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 92.123203][ T5045] Call Trace: [ 92.126508][ T5045] [ 92.129464][ T5045] dump_stack_lvl+0xd9/0x1b0 [ 92.134122][ T5045] panic+0x6a6/0x750 [ 92.138075][ T5045] ? panic_smp_self_stop+0xa0/0xa0 [ 92.143239][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 92.148392][ T5045] check_panic_on_warn+0xab/0xb0 [ 92.153462][ T5045] __warn+0xf2/0x380 [ 92.157402][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 92.162563][ T5045] report_bug+0x3bc/0x580 [ 92.166941][ T5045] handle_bug+0x3c/0x70 [ 92.171152][ T5045] exc_invalid_op+0x17/0x40 [ 92.176500][ T5045] asm_exc_invalid_op+0x1a/0x20 [ 92.181406][ T5045] RIP: 0010:skb_checksum_help+0x4b5/0x5c0 [ 92.187169][ T5045] 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 [ 92.206809][ T5045] RSP: 0018:ffffc9000396f0b8 EFLAGS: 00010293 [ 92.212910][ T5045] RAX: 0000000000000000 RBX: ffff8880163e4000 RCX: 0000000000000000 [ 92.220916][ T5045] RDX: ffff888025855940 RSI: ffffffff8830c235 RDI: 0000000000000006 [ 92.228908][ T5045] RBP: ffff8880163e4074 R08: 0000000000000006 R09: 00000000000006aa [ 92.236980][ T5045] R10: 0000000000000688 R11: ffffffff8a3b9fb8 R12: 00000000000006a8 [ 92.244962][ T5045] R13: 00000000000006a8 R14: 0000000000000688 R15: 00000000000006aa [ 92.252949][ T5045] ? do_syscall_64+0x38/0xb0 [ 92.257573][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 92.262715][ T5045] ? skb_checksum_help+0x4b5/0x5c0 [ 92.267849][ T5045] ip_do_fragment+0xa1b/0x18b0 [ 92.272639][ T5045] ? ip_fragment.constprop.0+0x230/0x230 [ 92.278297][ T5045] ? rcu_is_watching+0x12/0xb0 [ 92.283076][ T5045] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 92.289085][ T5045] ? ip_frag_next+0xa40/0xa40 [ 92.293782][ T5045] ? slab_free_freelist_hook+0x114/0x1e0 [ 92.299456][ T5045] ip_fragment.constprop.0+0x161/0x230 [ 92.304942][ T5045] __ip_finish_output+0x49a/0x640 [ 92.309998][ T5045] ip_finish_output+0x31/0x310 [ 92.314788][ T5045] ip_output+0x198/0x310 [ 92.319061][ T5045] ip_local_out+0xaf/0x190 [ 92.323508][ T5045] iptunnel_xmit+0x61a/0xa30 [ 92.328142][ T5045] ip_tunnel_xmit+0x1e14/0x3350 [ 92.333047][ T5045] ? print_irqtrace_events+0x228/0x270 [ 92.338548][ T5045] ? ip_md_tunnel_xmit+0x1f90/0x1f90 [ 92.343882][ T5045] ? skb_mac_gso_segment+0x3d8/0x610 [ 92.349205][ T5045] ? __gre_xmit+0x4f5/0x990 [ 92.353756][ T5045] ipgre_xmit+0x63c/0x910 [ 92.358141][ T5045] dev_hard_start_xmit+0x13d/0x6c0 [ 92.363288][ T5045] __dev_queue_xmit+0x9be/0x3d60 [ 92.368260][ T5045] ? netdev_core_pick_tx+0x390/0x390 [ 92.373593][ T5045] ? skb_partial_csum_set+0x202/0x390 [ 92.378992][ T5045] ? virtio_net_hdr_to_skb.constprop.0+0x685/0x1230 [ 92.385603][ T5045] ? packet_release+0xdc0/0xdc0 [ 92.390471][ T5045] packet_xmit+0x257/0x380 [ 92.394901][ T5045] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.400826][ T5045] packet_sendmsg+0x24c7/0x5570 [ 92.405737][ T5045] ? preempt_count_sub+0x150/0x150 [ 92.410896][ T5045] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 92.417365][ T5045] ? aa_sk_perm+0x2c1/0xae0 [ 92.421891][ T5045] ? rcu_is_watching+0x12/0xb0 [ 92.426685][ T5045] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.432598][ T5045] ? aa_af_perm+0x260/0x260 [ 92.437121][ T5045] ? import_ubuf+0x1f5/0x260 [ 92.442440][ T5045] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 92.447774][ T5045] ? packet_lookup_frame.isra.0+0x1c0/0x1c0 [ 92.453745][ T5045] sock_sendmsg+0xd9/0x180 [ 92.458192][ T5045] ____sys_sendmsg+0x6ac/0x940 [ 92.462990][ T5045] ? copy_msghdr_from_user+0x10b/0x160 [ 92.468494][ T5045] ? kernel_sendmsg+0x50/0x50 [ 92.473216][ T5045] ? finish_task_switch.isra.0+0x216/0xc90 [ 92.479046][ T5045] ? __switch_to+0x73d/0x1340 [ 92.483753][ T5045] ___sys_sendmsg+0x135/0x1d0 [ 92.488565][ T5045] ? do_recvmmsg+0x740/0x740 [ 92.493272][ T5045] ? lock_sync+0x190/0x190 [ 92.497735][ T5045] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 92.502959][ T5045] ? __fget_light+0x1fc/0x260 [ 92.507660][ T5045] __sys_sendmsg+0x117/0x1e0 [ 92.512278][ T5045] ? __sys_sendmsg_sock+0x30/0x30 [ 92.517435][ T5045] ? ptrace_notify+0xf4/0x130 [ 92.522165][ T5045] ? _raw_spin_unlock_irq+0x2e/0x50 [ 92.527491][ T5045] ? ptrace_notify+0xf4/0x130 [ 92.532201][ T5045] do_syscall_64+0x38/0xb0 [ 92.536663][ T5045] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 92.542592][ T5045] RIP: 0033:0x7f82818dc499 [ 92.547039][ T5045] 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 [ 92.566756][ T5045] RSP: 002b:00007fff9c13c7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 92.575187][ T5045] RAX: ffffffffffffffda RBX: 00007f8281929390 RCX: 00007f82818dc499 [ 92.583173][ T5045] RDX: 0000000000000000 RSI: 0000000020002ac0 RDI: 0000000000000003 [ 92.591168][ T5045] RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000 [ 92.599156][ T5045] R10: 0000000000000004 R11: 0000000000000246 R12: 00007fff9c13c830 [ 92.607134][ T5045] R13: 00007fff9c13c800 R14: 0000000000000001 R15: 00007fff9c13c830 [ 92.615219][ T5045] [ 92.618502][ T5045] Kernel Offset: disabled [ 92.622825][ T5045] Rebooting in 86400 seconds..