./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor14901426 <...> Warning: Permanently added '10.128.0.56' (ED25519) to the list of known hosts. execve("./syz-executor14901426", ["./syz-executor14901426"], 0x7ffff5f98f50 /* 10 vars */) = 0 brk(NULL) = 0x555555beb000 brk(0x555555bebd00) = 0x555555bebd00 arch_prctl(ARCH_SET_FS, 0x555555beb380) = 0 set_tid_address(0x555555beb650) = 5071 set_robust_list(0x555555beb660, 24) = 0 rseq(0x555555bebca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor14901426", 4096) = 26 getrandom("\xd6\x50\xe2\x2c\x5a\x43\x39\x53", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555bebd00 brk(0x555555c0cd00) = 0x555555c0cd00 brk(0x555555c0d000) = 0x555555c0d000 mprotect(0x7f3767be3000, 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 5072 attached , child_tidptr=0x555555beb650) = 5072 [pid 5072] set_robust_list(0x555555beb660, 24) = 0 [pid 5072] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setsid() = 1 [pid 5072] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5072] unshare(CLONE_NEWNS) = 0 [pid 5072] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5072] unshare(CLONE_NEWIPC) = 0 [pid 5072] unshare(CLONE_NEWCGROUP) = 0 [pid 5072] unshare(CLONE_NEWUTS) = 0 [pid 5072] unshare(CLONE_SYSVSEM) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "16777216", 8) = 8 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "536870912", 9) = 9 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "8192", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5072] close(3) = 0 [pid 5072] getpid() = 1 [pid 5072] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00 [ 105.738639][ T5082] RSP: 0018:ffffc9000410f3d0 EFLAGS: 00010202 [ 105.744756][ T5082] RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b2287 [ 105.752741][ T5082] RDX: 000000000000000e RSI: ffffffff886b3210 RDI: 0000000000000070 [ 105.760729][ T5082] RBP: ffffc9000410f578 R08: 0000000000000005 R09: 000000000000ffff [ 105.768715][ T5082] R10: 000000000000ffff R11: 0000000000000002 R12: ffff88807ef52ac0 [ 105.776704][ T5082] R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046 [ 105.784699][ T5082] FS: 0000555555beb380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 105.793732][ T5082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.800332][ T5082] CR2: 0000000020010000 CR3: 000000001c19a000 CR4: 00000000003506f0 [ 105.808345][ T5082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.816420][ T5082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.824408][ T5082] Call Trace: [ 105.827691][ T5082] [ 105.830638][ T5082] ? show_regs+0x8f/0xa0 [ 105.834924][ T5082] ? die_addr+0x4f/0xd0 [ 105.839118][ T5082] ? exc_general_protection+0x155/0x230 [ 105.844698][ T5082] ? asm_exc_general_protection+0x26/0x30 [ 105.850521][ T5082] ? skb_segment+0x877/0x3f30 [ 105.855209][ T5082] ? skb_segment+0x1800/0x3f30 [ 105.859985][ T5082] ? skb_segment+0x181d/0x3f30 [ 105.864759][ T5082] ? get_random_u32+0x584/0x7e0 [ 105.869639][ T5082] ? skb_zerocopy_iter_stream+0x6a0/0x6a0 [ 105.875376][ T5082] ? ip6_find_1stfragopt+0x163/0x2c0 [ 105.880765][ T5082] udp6_ufo_fragment+0xa0e/0xd00 [ 105.885719][ T5082] ? udp6_gro_receive+0xfc0/0xfc0 [ 105.890788][ T5082] ? ipv6_gso_pull_exthdrs+0x224/0x510 [ 105.896271][ T5082] ipv6_gso_segment+0x534/0x17e0 [ 105.901241][ T5082] ? sit_ip6ip6_gro_receive+0x110/0x110 [ 105.906814][ T5082] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 105.912758][ T5082] skb_mac_gso_segment+0x290/0x610 [ 105.917898][ T5082] ? sit_ip6ip6_gro_receive+0x110/0x110 [ 105.923459][ T5082] ? netdev_nl_dev_get_dumpit+0x1d0/0x1d0 [ 105.929215][ T5082] ? lock_acquire+0x1ae/0x520 [ 105.933917][ T5082] __skb_gso_segment+0x339/0x710 [ 105.939055][ T5082] validate_xmit_skb+0x36c/0xeb0 [ 105.944014][ T5082] ? preempt_count_sub+0x160/0x160 [ 105.949140][ T5082] __dev_queue_xmit+0x6f3/0x3d60 [ 105.954102][ T5082] ? _copy_from_iter+0x2c1/0x10f0 [ 105.959178][ T5082] ? netdev_core_pick_tx+0x3a0/0x3a0 [ 105.964484][ T5082] ? skb_partial_csum_set+0x202/0x390 [ 105.969894][ T5082] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 105.975812][ T5082] ? virtio_net_hdr_to_skb.constprop.0+0x4e4/0x1380 [ 105.982448][ T5082] ? packet_create+0x8e0/0x8e0 [ 105.987246][ T5082] packet_xmit+0x257/0x380 [ 105.991716][ T5082] packet_sendmsg+0x24c6/0x5220 [ 105.996597][ T5082] ? preempt_count_sub+0x160/0x160 [ 106.001723][ T5082] ? find_held_lock+0x2d/0x110 [ 106.006510][ T5082] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 106.012430][ T5082] ? aa_sk_perm+0x2f8/0xb40 [ 106.016951][ T5082] ? packet_notifier+0x8c0/0x8c0 [ 106.021906][ T5082] ? aa_af_perm+0x250/0x250 [ 106.026423][ T5082] ? __might_fault+0xe6/0x1a0 [ 106.031130][ T5082] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 106.036435][ T5082] ? packet_notifier+0x8c0/0x8c0 [ 106.041498][ T5082] __sock_sendmsg+0xd5/0x180 [ 106.046136][ T5082] __sys_sendto+0x255/0x340 [ 106.050674][ T5082] ? __ia32_sys_getpeername+0xb0/0xb0 [ 106.056068][ T5082] ? spin_bug+0x1d0/0x1d0 [ 106.060409][ T5082] ? cgroup_update_frozen+0x144/0x6b0 [ 106.065815][ T5082] ? ptrace_notify+0xf4/0x130 [ 106.070531][ T5082] ? _raw_spin_unlock_irq+0x23/0x50 [ 106.075764][ T5082] ? lockdep_hardirqs_on+0x7d/0x110 [ 106.080997][ T5082] ? _raw_spin_unlock_irq+0x2e/0x50 [ 106.086220][ T5082] __x64_sys_sendto+0xe0/0x1b0 [ 106.091014][ T5082] ? syscall_enter_from_user_mode+0x107/0x120 [ 106.097113][ T5082] do_syscall_64+0x40/0x110 [ 106.101646][ T5082] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 106.107571][ T5082] RIP: 0033:0x7f3767b6aaa9 [ 106.111995][ T5082] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 [ 106.131642][ T5082] RSP: 002b:00007ffd7ae09e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 106.140254][ T5082] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3767b6aaa9 [ 106.148236][ T5082] RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003 [ 106.156214][ T5082] RBP: 00000000000f4240 R08: 0000000020000540 R09: 0000000000000014 [ 106.164283][ T5082] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd7ae09ed0 [ 106.172278][ T5082] R13: 0000000000000001 R14: 00007ffd7ae09ed0 R15: 0000000000000003 [ 106.180267][ T5082] [ 106.183295][ T5082] Modules linked in: [ 106.187298][ T5082] ---[ end trace 0000000000000000 ]--- [ 106.192782][ T5082] RIP: 0010:skb_segment+0x181d/0x3f30 [ 106.198229][ T5082] Code: 83 e3 02 e9 fb ed ff ff e8 f0 5b 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00 [ 106.217930][ T5082] RSP: 0018:ffffc9000410f3d0 EFLAGS: 00010202 [ 106.224010][ T5082] RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b2287 [ 106.232108][ T5082] RDX: 000000000000000e RSI: ffffffff886b3210 RDI: 0000000000000070 [ 106.240156][ T5082] RBP: ffffc9000410f578 R08: 0000000000000005 R09: 000000000000ffff [ 106.248173][ T5082] R10: 000000000000ffff R11: 0000000000000002 R12: ffff88807ef52ac0 [ 106.256176][ T5082] R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046 [ 106.264196][ T5082] FS: 0000555555beb380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 106.273178][ T5082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.279815][ T5082] CR2: 0000000020010000 CR3: 000000001c19a000 CR4: 00000000003506f0 [ 106.287838][ T5082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.296176][ T5082] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.304228][ T5082] Kernel panic - not syncing: Fatal exception in interrupt [ 106.311691][ T5082] Kernel Offset: disabled [ 106.316027][ T5082] Rebooting in 86400 seconds..