./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1612979779 <...> Warning: Permanently added '10.128.10.28' (ED25519) to the list of known hosts. execve("./syz-executor1612979779", ["./syz-executor1612979779"], 0x7ffc2c4defa0 /* 10 vars */) = 0 brk(NULL) = 0x555555a6c000 brk(0x555555a6cd00) = 0x555555a6cd00 arch_prctl(ARCH_SET_FS, 0x555555a6c380) = 0 set_tid_address(0x555555a6c650) = 287 set_robust_list(0x555555a6c660, 24) = 0 rseq(0x555555a6cca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1612979779", 4096) = 28 getrandom("\xb2\xf7\x3a\x28\xd5\x0e\x7e\x3f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555a6cd00 brk(0x555555a8dd00) = 0x555555a8dd00 brk(0x555555a8e000) = 0x555555a8e000 mprotect(0x7f21ada10000, 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=0x555555a6c650) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x555555a6c660, 24) = 0 [pid 288] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setsid() = 1 [pid 288] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 288] unshare(CLONE_NEWNS) = 0 [pid 288] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 288] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 288] unshare(CLONE_NEWCGROUP) = 0 [pid 288] unshare(CLONE_NEWUTS) = 0 [pid 288] unshare(CLONE_SYSVSEM) = 0 [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] getpid() = 1 [pid 288] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 04 08 84 c0 0f 85 ef 08 00 00 41 8b 1e 4c 8b b4 24 a8 00 00 [ 21.596669][ T288] RSP: 0018:ffffc90000b07080 EFLAGS: 00010202 [ 21.602561][ T288] RAX: 000000000000000e RBX: 0000000000000000 RCX: dffffc0000000000 [ 21.610371][ T288] RDX: 0000000000000000 RSI: ffff88810ab10e3e RDI: 000000000000ffff [ 21.618182][ T288] RBP: ffffc90000b072f0 R08: ffffffff83bf0cd3 R09: ffffffff83c3846b [ 21.625992][ T288] R10: 0000000000000002 R11: ffff88811e8c93c0 R12: 000000000000003e [ 21.633816][ T288] R13: 0000000000000011 R14: 0000000000000070 R15: ffff88810ab65000 [ 21.641621][ T288] FS: 0000555555a6c380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.650401][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.656806][ T288] CR2: 0000000020010000 CR3: 000000011eabb000 CR4: 00000000003506b0 [ 21.664619][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.672427][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.680233][ T288] Call Trace: [ 21.683372][ T288] ? __die_body+0x62/0xb0 [ 21.687539][ T288] ? die_addr+0x9f/0xd0 [ 21.691526][ T288] ? exc_general_protection+0x3ff/0x490 [ 21.696913][ T288] ? asm_exc_general_protection+0x1e/0x30 [ 21.702462][ T288] ? skb_network_protocol+0x1ab/0x7a0 [ 21.707665][ T288] ? skb_segment+0xa93/0x4130 [ 21.712178][ T288] ? skb_segment+0x2abb/0x4130 [ 21.716781][ T288] ? debug_smp_processor_id+0x17/0x20 [ 21.722005][ T288] ? kfree+0xc3/0x270 [ 21.725812][ T288] ? ipv6_proxy_select_ident+0x1b0/0x270 [ 21.731277][ T288] ? skb_gro_receive_list+0x4d0/0x4d0 [ 21.736484][ T288] ? udp6_ufo_fragment+0x713/0xcd0 [ 21.741430][ T288] ? memmove+0x56/0x70 [ 21.745338][ T288] udp6_ufo_fragment+0x866/0xcd0 [ 21.750108][ T288] ? __pskb_pull_tail+0xba6/0x16c0 [ 21.755061][ T288] ? udpv6_offload_exit+0x20/0x20 [ 21.759919][ T288] ? ipv6_gso_pull_exthdrs+0x42c/0x480 [ 21.765211][ T288] ipv6_gso_segment+0x64a/0x1120 [ 21.769987][ T288] ? inet6_del_offload+0x50/0x50 [ 21.774761][ T288] ? handle_mm_fault+0x1736/0x1a10 [ 21.779708][ T288] ? inet6_del_offload+0x50/0x50 [ 21.784477][ T288] skb_mac_gso_segment+0x27c/0x490 [ 21.789430][ T288] ? skb_network_protocol+0x7a0/0x7a0 [ 21.794636][ T288] ? can_reuse_spf_vma+0xe0/0xe0 [ 21.799408][ T288] ? __alloc_pages_nodemask+0x435/0xaf0 [ 21.804788][ T288] __skb_gso_segment+0x32d/0x4c0 [ 21.809565][ T288] validate_xmit_skb+0x30a/0xc50 [ 21.814336][ T288] ? validate_xmit_skb_list+0x130/0x130 [ 21.819719][ T288] ? netdev_core_pick_tx+0xce/0x300 [ 21.824751][ T288] __dev_queue_xmit+0x1144/0x28e0 [ 21.829614][ T288] ? dev_queue_xmit+0x20/0x20 [ 21.834126][ T288] ? virtio_net_hdr_to_skb+0xa10/0x1130 [ 21.839508][ T288] ? fanout_demux_rollover+0xbe0/0xbe0 [ 21.844799][ T288] dev_queue_xmit+0x17/0x20 [ 21.849142][ T288] packet_sendmsg+0x4526/0x60a0 [ 21.853837][ T288] ? selinux_socket_sendmsg+0x243/0x340 [ 21.859206][ T288] ? selinux_socket_accept+0x5b0/0x5b0 [ 21.864499][ T288] ? finish_task_switch+0x130/0x5a0 [ 21.869539][ T288] ? __switch_to_asm+0x34/0x60 [ 21.874136][ T288] ? packet_getsockopt+0xea0/0xea0 [ 21.879082][ T288] ? __kasan_check_write+0x14/0x20 [ 21.884028][ T288] ? check_stack_object+0xf4/0x130 [ 21.888993][ T288] ? security_socket_sendmsg+0x82/0xb0 [ 21.894283][ T288] ? packet_getsockopt+0xea0/0xea0 [ 21.899223][ T288] __sys_sendto+0x545/0x700 [ 21.903562][ T288] ? __ia32_sys_getpeername+0x90/0x90 [ 21.908766][ T288] ? ptrace_stop+0x6dc/0xa30 [ 21.913193][ T288] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.918225][ T288] ? ptrace_notify+0x24c/0x350 [ 21.922836][ T288] ? fpu__clear_all+0x20/0x20 [ 21.927365][ T288] __x64_sys_sendto+0xe5/0x100 [ 21.931940][ T288] do_syscall_64+0x34/0x70 [ 21.936189][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.941920][ T288] RIP: 0033:0x7f21ad998419 [ 21.946173][ T288] 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 [ 21.965614][ T288] RSP: 002b:00007ffe76b38628 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 21.973856][ T288] RAX: ffffffffffffffda RBX: 00007f21ad9e5390 RCX: 00007f21ad998419 [ 21.981669][ T288] RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003 [ 21.989479][ T288] RBP: 0000000000000003 R08: 0000000020000540 R09: 0000000000000014 [ 21.997293][ T288] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe76b38680 [ 22.005105][ T288] R13: 00007ffe76b38650 R14: 0000000000000001 R15: 00007ffe76b38680 [ 22.012913][ T288] Modules linked in: [ 22.016700][ T288] ---[ end trace 73b284e4cf1b4834 ]--- [ 22.021990][ T288] RIP: 0010:skb_segment+0x2abb/0x4130 [ 22.027158][ T288] Code: 24 20 8b 5c 24 30 e9 8d e0 ff ff e8 0f 77 ab fd 48 8b 44 24 60 4c 8d 70 70 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 ef 08 00 00 41 8b 1e 4c 8b b4 24 a8 00 00 [ 22.046629][ T288] RSP: 0018:ffffc90000b07080 EFLAGS: 00010202 [ 22.052515][ T288] RAX: 000000000000000e RBX: 0000000000000000 RCX: dffffc0000000000 [ 22.060307][ T288] RDX: 0000000000000000 RSI: ffff88810ab10e3e RDI: 000000000000ffff [ 22.068150][ T288] RBP: ffffc90000b072f0 R08: ffffffff83bf0cd3 R09: ffffffff83c3846b [ 22.075941][ T288] R10: 0000000000000002 R11: ffff88811e8c93c0 R12: 000000000000003e [ 22.083800][ T288] R13: 0000000000000011 R14: 0000000000000070 R15: ffff88810ab65000 [ 22.091567][ T288] FS: 0000555555a6c380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.100317][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.106766][ T288] CR2: 0000000020010000 CR3: 000000011eabb000 CR4: 00000000003506b0 [ 22.114579][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.122383][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.130169][ T288] Kernel panic - not syncing: Fatal exception in interrupt [ 22.137278][ T288] Kernel Offset: disabled [ 22.141520][ T288] Rebooting in 86400 seconds..