./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2977211426 <...> Warning: Permanently added '10.128.0.28' (ED25519) to the list of known hosts. execve("./syz-executor2977211426", ["./syz-executor2977211426"], 0x7ffcbbcecbd0 /* 10 vars */) = 0 brk(NULL) = 0x555555d0e000 brk(0x555555d0ed00) = 0x555555d0ed00 arch_prctl(ARCH_SET_FS, 0x555555d0e380) = 0 set_tid_address(0x555555d0e650) = 360 set_robust_list(0x555555d0e660, 24) = 0 rseq(0x555555d0eca0, 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-executor2977211426", 4096) = 28 getrandom("\x51\x5b\x92\x9b\x09\xba\x51\xd1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d0ed00 brk(0x555555d2fd00) = 0x555555d2fd00 brk(0x555555d30000) = 0x555555d30000 mprotect(0x7fe34f394000, 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=0x555555d0e650) = 361 ./strace-static-x86_64: Process 361 attached [pid 361] set_robust_list(0x555555d0e660, 24) = 0 [pid 361] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 361] setsid() = 1 [pid 361] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 361] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 361] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 361] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 361] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 361] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 361] unshare(CLONE_NEWNS) = 0 [pid 361] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 361] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 361] unshare(CLONE_NEWCGROUP) = 0 [pid 361] unshare(CLONE_NEWUTS) = 0 [pid 361] unshare(CLONE_SYSVSEM) = 0 [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 361] getpid() = 1 [pid 361] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 5d a3 e6 fd 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 [ 29.420695][ T361] RSP: 0018:ffff8881dc076dc8 EFLAGS: 00010293 [ 29.426594][ T361] RAX: ffffffff837da00c RBX: 0000000000000529 RCX: ffff8881dc031f80 [ 29.434420][ T361] RDX: 0000000000000000 RSI: 0000000000000068 RDI: 0000000000000529 [ 29.442220][ T361] RBP: 0000000000000068 R08: ffffffff837d9a07 R09: ffff8881dc076f80 [ 29.450037][ T361] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881daf7c070 [ 29.457840][ T361] R13: 0000000000002969 R14: ffff8881daf7c000 R15: 1ffff1103b5ef80e [ 29.465656][ T361] FS: 0000555555d0e380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.474423][ T361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.480840][ T361] CR2: 000000002000d000 CR3: 00000001dcb57000 CR4: 00000000003406a0 [ 29.488655][ T361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.496466][ T361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.504274][ T361] Call Trace: [ 29.507409][ T361] ? __die+0xb4/0x100 [ 29.511224][ T361] ? die+0x26/0x50 [ 29.514783][ T361] ? do_trap+0x1e7/0x340 [ 29.518860][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.523808][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.528754][ T361] ? do_invalid_op+0xfb/0x110 [ 29.533265][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.538215][ T361] ? invalid_op+0x1e/0x30 [ 29.542385][ T361] ? skb_checksum_help+0x267/0x880 [ 29.547326][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.552275][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.557224][ T361] ? skb_checksum_help+0x86c/0x880 [ 29.562171][ T361] ? kmem_cache_free+0x10b/0x2c0 [ 29.567099][ T361] ip_do_fragment+0x15e/0x2200 [ 29.571709][ T361] ? ip_fragment+0x210/0x210 [ 29.576123][ T361] ? ip_frag_next+0xad0/0xad0 [ 29.580726][ T361] ? kmem_cache_free+0x10b/0x2c0 [ 29.585511][ T361] ? __ip_finish_output+0x457/0x710 [ 29.590536][ T361] ? ip_fragment+0x9a/0x210 [ 29.594890][ T361] __ip_finish_output+0x49c/0x710 [ 29.599737][ T361] ip_mc_output+0x3d4/0xa70 [ 29.604069][ T361] ? rt_set_nexthop+0x21b/0x700 [ 29.608758][ T361] ? ip_build_and_send_pkt+0xad0/0xad0 [ 29.614050][ T361] ? ip_mc_finish_output+0x340/0x340 [ 29.619171][ T361] ? __ip_local_out+0x4e8/0x4f0 [ 29.623862][ T361] ? ip_send_check+0xd0/0xd0 [ 29.628287][ T361] ? __ip_local_out+0x4f0/0x4f0 [ 29.632973][ T361] ? prandom_u32+0x236/0x270 [ 29.637402][ T361] iptunnel_xmit+0x476/0x850 [ 29.641829][ T361] ip_tunnel_xmit+0x1aa7/0x26a0 [ 29.646513][ T361] ? ip_tunnel_xmit+0xe1/0x26a0 [ 29.651200][ T361] ? tnl_update_pmtu+0xbb0/0xbb0 [ 29.655971][ T361] ? gre_build_header+0x23f/0x7a0 [ 29.660833][ T361] ipgre_xmit+0x754/0xa50 [ 29.665002][ T361] dev_hard_start_xmit+0x1b7/0x6b0 [ 29.669948][ T361] __dev_queue_xmit+0x14da/0x27e0 [ 29.674808][ T361] ? dev_queue_xmit+0x20/0x20 [ 29.679322][ T361] ? virtio_net_hdr_to_skb+0x9c1/0x10c0 [ 29.684704][ T361] ? fanout_demux_rollover+0xc10/0xc10 [ 29.690004][ T361] packet_sendmsg+0x4747/0x6100 [ 29.694685][ T361] ? get_page_from_freelist+0x2d13/0x2d90 [ 29.700247][ T361] ? avc_has_perm+0x21a/0x260 [ 29.704755][ T361] ? selinux_socket_sendmsg+0x243/0x340 [ 29.710132][ T361] ? selinux_socket_accept+0x5b0/0x5b0 [ 29.715427][ T361] ? rw_copy_check_uvector+0x2a3/0x2f0 [ 29.720719][ T361] ? compat_packet_setsockopt+0x160/0x160 [ 29.726537][ T361] ? _copy_from_iter_nocache+0x33e/0xd20 [ 29.732004][ T361] ? security_socket_sendmsg+0x7d/0xa0 [ 29.737298][ T361] ? compat_packet_setsockopt+0x160/0x160 [ 29.742852][ T361] ____sys_sendmsg+0x5ac/0x8f0 [ 29.747454][ T361] ? __sys_sendmsg_sock+0x2b0/0x2b0 [ 29.752489][ T361] __sys_sendmsg+0x28b/0x380 [ 29.756913][ T361] ? ____sys_sendmsg+0x8f0/0x8f0 [ 29.761687][ T361] ? ptrace_notify+0x24c/0x350 [ 29.766315][ T361] ? __do_page_fault+0x725/0xbb0 [ 29.771062][ T361] do_syscall_64+0xca/0x1c0 [ 29.775401][ T361] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 29.781129][ T361] Modules linked in: [ 29.784908][ T361] ---[ end trace f7b8bb3929f98e3d ]--- [ 29.790192][ T361] RIP: 0010:skb_checksum_help+0x86c/0x880 [ 29.795718][ T361] Code: 65 16 fe e9 b3 fc ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fc ff ff 48 89 df e8 ee 64 16 fe e9 c3 fc ff ff e8 64 a3 e6 fd <0f> 0b e8 5d a3 e6 fd 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 [ 29.815176][ T361] RSP: 0018:ffff8881dc076dc8 EFLAGS: 00010293 [ 29.821254][ T361] RAX: ffffffff837da00c RBX: 0000000000000529 RCX: ffff8881dc031f80 [ 29.829047][ T361] RDX: 0000000000000000 RSI: 0000000000000068 RDI: 0000000000000529 [ 29.836842][ T361] RBP: 0000000000000068 R08: ffffffff837d9a07 R09: ffff8881dc076f80 [ 29.844693][ T361] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881daf7c070 [ 29.852487][ T361] R13: 0000000000002969 R14: ffff8881daf7c000 R15: 1ffff1103b5ef80e [ 29.860308][ T361] FS: 0000555555d0e380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.869058][ T361] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.875466][ T361] CR2: 000000002000d000 CR3: 00000001dcb57000 CR4: 00000000003406a0 [ 29.883570][ T361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.891373][ T361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.899182][ T361] Kernel panic - not syncing: Fatal exception in interrupt [ 29.906513][ T361] Kernel Offset: disabled [ 29.910650][ T361] Rebooting in 86400 seconds..