./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor718218577 <...> Warning: Permanently added '10.128.1.165' (ED25519) to the list of known hosts. execve("./syz-executor718218577", ["./syz-executor718218577"], 0x7ffc5d60b310 /* 10 vars */) = 0 brk(NULL) = 0x555556f99000 brk(0x555556f99d00) = 0x555556f99d00 arch_prctl(ARCH_SET_FS, 0x555556f99380) = 0 set_tid_address(0x555556f99650) = 356 set_robust_list(0x555556f99660, 24) = 0 rseq(0x555556f99ca0, 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-executor718218577", 4096) = 27 getrandom("\xcc\x4c\xc6\x62\x95\xc9\x72\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556f99d00 brk(0x555556fbad00) = 0x555556fbad00 brk(0x555556fbb000) = 0x555556fbb000 mprotect(0x7f69480d1000, 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 358 attached , child_tidptr=0x555556f99650) = 358 [pid 358] set_robust_list(0x555556f99660, 24) = 0 [pid 358] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 358] setsid() = 1 [pid 358] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 358] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 358] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 358] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 358] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 358] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 358] unshare(CLONE_NEWNS) = 0 [pid 358] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 358] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 358] unshare(CLONE_NEWCGROUP) = 0 [pid 358] unshare(CLONE_NEWUTS) = 0 [pid 358] unshare(CLONE_SYSVSEM) = 0 [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 358] getpid() = 1 [pid 358] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 4d 51 e6 fd 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 [ 23.609783][ T358] RSP: 0018:ffff8881dca06dc8 EFLAGS: 00010293 [ 23.615681][ T358] RAX: ffffffff837df34c RBX: 0000000000007419 RCX: ffff8881dcfb4ec0 [ 23.623495][ T358] RDX: 0000000000000000 RSI: 0000000000002975 RDI: 0000000000007419 [ 23.631307][ T358] RBP: 0000000000002975 R08: ffffffff837ded47 R09: ffff8881dca06f80 [ 23.639266][ T358] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f46c2070 [ 23.647105][ T358] R13: 0000000000002975 R14: ffff8881f46c2000 R15: 1ffff1103e8d840e [ 23.654913][ T358] FS: 0000555556f99380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.663682][ T358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.670102][ T358] CR2: 000000002000d000 CR3: 00000001dc99a000 CR4: 00000000003406b0 [ 23.677914][ T358] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.685724][ T358] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.693532][ T358] Call Trace: [ 23.696673][ T358] ? __die+0xb4/0x100 [ 23.700481][ T358] ? die+0x26/0x50 [ 23.704036][ T358] ? do_trap+0x1e7/0x340 [ 23.708119][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.713066][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.718014][ T358] ? do_invalid_op+0xfb/0x110 [ 23.722538][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.727473][ T358] ? invalid_op+0x1e/0x30 [ 23.731640][ T358] ? skb_checksum_help+0x267/0x880 [ 23.736591][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.741534][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.746479][ T358] ? skb_checksum_help+0x86c/0x880 [ 23.751438][ T358] ip_do_fragment+0x15e/0x2200 [ 23.756031][ T358] ? ip_fragment+0x210/0x210 [ 23.760455][ T358] ? ip_frag_next+0xad0/0xad0 [ 23.764967][ T358] ? kmem_cache_free+0x10b/0x2c0 [ 23.769740][ T358] ? __ip_finish_output+0x457/0x710 [ 23.774772][ T358] ? ip_fragment+0x9a/0x210 [ 23.779116][ T358] __ip_finish_output+0x49c/0x710 [ 23.783975][ T358] ip_mc_output+0x3d4/0xa70 [ 23.788314][ T358] ? rt_set_nexthop+0x21b/0x700 [ 23.793003][ T358] ? ip_build_and_send_pkt+0xad0/0xad0 [ 23.798295][ T358] ? ip_mc_finish_output+0x340/0x340 [ 23.803501][ T358] ? __ip_local_out+0x4e8/0x4f0 [ 23.808189][ T358] ? ip_send_check+0xd0/0xd0 [ 23.812616][ T358] ? __ip_local_out+0x4f0/0x4f0 [ 23.817303][ T358] ? prandom_u32+0x236/0x270 [ 23.821732][ T358] iptunnel_xmit+0x476/0x850 [ 23.826158][ T358] ip_tunnel_xmit+0x1aa7/0x26a0 [ 23.830846][ T358] ? ip_tunnel_xmit+0x151/0x26a0 [ 23.835616][ T358] ? tnl_update_pmtu+0xbb0/0xbb0 [ 23.840389][ T358] ? gre_build_header+0x23f/0x7a0 [ 23.845248][ T358] ipgre_xmit+0x754/0xa50 [ 23.849420][ T358] dev_hard_start_xmit+0x1b7/0x6b0 [ 23.854363][ T358] __dev_queue_xmit+0x14da/0x27e0 [ 23.859239][ T358] ? dev_queue_xmit+0x20/0x20 [ 23.863736][ T358] ? virtio_net_hdr_to_skb+0xa10/0x1130 [ 23.869119][ T358] ? fanout_demux_rollover+0xc10/0xc10 [ 23.874413][ T358] packet_sendmsg+0x4747/0x6100 [ 23.879106][ T358] ? avc_has_perm+0x21a/0x260 [ 23.883612][ T358] ? selinux_socket_sendmsg+0x243/0x340 [ 23.888993][ T358] ? selinux_socket_accept+0x5b0/0x5b0 [ 23.894287][ T358] ? rw_copy_check_uvector+0x2a3/0x2f0 [ 23.899582][ T358] ? compat_packet_setsockopt+0x160/0x160 [ 23.905135][ T358] ? iov_iter_npages+0x45e/0xc30 [ 23.909910][ T358] ? security_socket_sendmsg+0x7d/0xa0 [ 23.915203][ T358] ? compat_packet_setsockopt+0x160/0x160 [ 23.920760][ T358] ____sys_sendmsg+0x5ac/0x8f0 [ 23.925446][ T358] ? __sys_sendmsg_sock+0x2b0/0x2b0 [ 23.930486][ T358] __sys_sendmsg+0x28b/0x380 [ 23.934905][ T358] ? ____sys_sendmsg+0x8f0/0x8f0 [ 23.939679][ T358] ? ptrace_notify+0x24c/0x350 [ 23.944284][ T358] ? __do_page_fault+0x725/0xbb0 [ 23.949058][ T358] do_syscall_64+0xca/0x1c0 [ 23.953396][ T358] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 23.959154][ T358] Modules linked in: [ 23.962901][ T358] ---[ end trace aaf2bd5792d7dd87 ]--- [ 23.968363][ T358] RIP: 0010:skb_checksum_help+0x86c/0x880 [ 23.973878][ T358] Code: 22 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 1e 22 16 fe e9 c3 fc ff ff e8 54 51 e6 fd <0f> 0b e8 4d 51 e6 fd 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 [ 23.993350][ T358] RSP: 0018:ffff8881dca06dc8 EFLAGS: 00010293 [ 23.999255][ T358] RAX: ffffffff837df34c RBX: 0000000000007419 RCX: ffff8881dcfb4ec0 [ 24.007055][ T358] RDX: 0000000000000000 RSI: 0000000000002975 RDI: 0000000000007419 [ 24.014842][ T358] RBP: 0000000000002975 R08: ffffffff837ded47 R09: ffff8881dca06f80 [ 24.022681][ T358] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f46c2070 [ 24.030485][ T358] R13: 0000000000002975 R14: ffff8881f46c2000 R15: 1ffff1103e8d840e [ 24.038296][ T358] FS: 0000555556f99380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.047062][ T358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.053462][ T358] CR2: 000000002000d000 CR3: 00000001dc99a000 CR4: 00000000003406b0 [ 24.061300][ T358] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.069108][ T358] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.076919][ T358] Kernel panic - not syncing: Fatal exception in interrupt [ 24.084087][ T358] Kernel Offset: disabled [ 24.088204][ T358] Rebooting in 86400 seconds..