./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3713772254 <...> forked to background, child pid 3186 no interfaces have a carrier [ 21.338867][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.350981][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. execve("./syz-executor3713772254", ["./syz-executor3713772254"], 0x7fff0cdc34e0 /* 10 vars */) = 0 brk(NULL) = 0x555555b62000 brk(0x555555b62c40) = 0x555555b62c40 arch_prctl(ARCH_SET_FS, 0x555555b62300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3713772254", 4096) = 28 brk(0x555555b83c40) = 0x555555b83c40 brk(0x555555b84000) = 0x555555b84000 mprotect(0x7f03e40c6000, 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 3608 attached , child_tidptr=0x555555b625d0) = 3608 [pid 3608] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3608] setsid() = 1 [pid 3608] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3608] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3608] unshare(CLONE_NEWNS) = 0 [pid 3608] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3608] unshare(CLONE_NEWIPC) = 0 [pid 3608] unshare(CLONE_NEWCGROUP) = 0 [pid 3608] unshare(CLONE_NEWUTS) = 0 [pid 3608] unshare(CLONE_SYSVSEM) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "16777216", 8) = 8 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "536870912", 9) = 9 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "8192", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024", 4) = 4 [pid 3608] close(3) = 0 [pid 3608] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3608] close(3) = 0 [pid 3608] getpid() = 1 [pid 3608] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 39.080602][ T3608] dump_stack_lvl+0xcd/0x134 [ 39.085192][ T3608] hsr_node_get_first+0xc7/0xe0 [ 39.090905][ T3608] hsr_get_next_node+0x1d0/0x320 [ 39.096099][ T3608] hsr_get_node_list+0x333/0xa80 [ 39.101038][ T3608] ? hsr_get_node_status+0xcc0/0xcc0 [ 39.106533][ T3608] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 39.113900][ T3608] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 39.121272][ T3608] genl_family_rcv_msg_doit+0x228/0x320 [ 39.126842][ T3608] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 39.134209][ T3608] ? mutex_lock_io_nested+0x1190/0x1190 [ 39.139760][ T3608] ? genl_op_from_small+0x23/0x3c0 [ 39.145124][ T3608] ? genl_get_cmd+0x3cf/0x480 [ 39.149796][ T3608] genl_rcv_msg+0x328/0x580 [ 39.154296][ T3608] ? genl_get_cmd+0x480/0x480 [ 39.158981][ T3608] ? hsr_get_node_status+0xcc0/0xcc0 [ 39.164288][ T3608] ? lock_release+0x780/0x780 [ 39.168964][ T3608] ? ref_tracker_dir_exit+0x3e0/0x3e0 [ 39.174338][ T3608] netlink_rcv_skb+0x153/0x420 [ 39.179103][ T3608] ? genl_get_cmd+0x480/0x480 [ 39.183861][ T3608] ? netlink_ack+0xa80/0xa80 [ 39.188480][ T3608] ? netlink_deliver_tap+0x1b1/0xc40 [ 39.193788][ T3608] genl_rcv+0x24/0x40 [ 39.197765][ T3608] netlink_unicast+0x543/0x7f0 [ 39.202533][ T3608] ? netlink_attachskb+0x880/0x880 [ 39.207637][ T3608] ? find_vmap_area+0xf4/0x130 [ 39.212423][ T3608] ? __phys_addr_symbol+0x2c/0x70 [ 39.217465][ T3608] ? __check_object_size+0x2de/0x700 [ 39.222754][ T3608] netlink_sendmsg+0x917/0xe10 [ 39.227973][ T3608] ? netlink_unicast+0x7f0/0x7f0 [ 39.232930][ T3608] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 39.238216][ T3608] ? netlink_unicast+0x7f0/0x7f0 [ 39.243158][ T3608] sock_sendmsg+0xcf/0x120 [ 39.247578][ T3608] ____sys_sendmsg+0x6eb/0x810 [ 39.252622][ T3608] ? kernel_sendmsg+0x50/0x50 [ 39.257381][ T3608] ? do_recvmmsg+0x6d0/0x6d0 [ 39.262145][ T3608] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 39.268385][ T3608] ? lockdep_hardirqs_on+0x79/0x100 [ 39.273759][ T3608] ___sys_sendmsg+0xf3/0x170 [ 39.278431][ T3608] ? sendmsg_copy_msghdr+0x160/0x160 [ 39.283718][ T3608] ? lock_release+0x780/0x780 [ 39.288393][ T3608] ? ptrace_stop.part.0+0x5ec/0xa80 [ 39.294302][ T3608] ? do_raw_spin_lock+0x120/0x2a0 [ 39.299327][ T3608] ? rwlock_bug.part.0+0x90/0x90 [ 39.304454][ T3608] ? _raw_spin_lock_irq+0x41/0x50 [ 39.309485][ T3608] ? __fget_light+0x20a/0x270 [ 39.314187][ T3608] __x64_sys_sendmsg+0x132/0x220 [ 39.319124][ T3608] ? __sys_sendmsg+0x1b0/0x1b0 [ 39.323894][ T3608] ? _raw_spin_unlock_irq+0x2a/0x40 [ 39.329107][ T3608] ? ptrace_notify+0xfa/0x140 [ 39.333784][ T3608] do_syscall_64+0x35/0xb0 [ 39.338196][ T3608] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 39.344095][ T3608] RIP: 0033:0x7f03e40528d9 [ 39.349463][ T3608] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 39.369081][ T3608] RSP: 002b:00007fffb7765468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 39.377681][ T3608] RAX: ffffffffffffffda RBX: 00007fffb7765478 RCX: 00007f03e40528d9 [pid 3608] sendmsg(3, {msg_name=NULL, msg_namelen=-301, msg_iov=[{iov_base="\xe0\x3f\x03\x00\x3e\x00\x05\x05\xd2\x5a\x80\x64\x8c\x63\x94\x0d\x05\x24\xfc\x60\x10\x00\x02\x40\x30\x00\x00\x00\x05\x35\x82\xc1\x37\x15\x3e\x37\x02\x48\x01\x80\x00\xf0\x17\x00\xd1\xbd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x20\x00\x00\x00\x00\xe0\x3f\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=212960}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 212960 [pid 3608] exit_group(1) = ? [ 39.385735][ T3608] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 39.393702][ T3608] RBP: 0000000000000003 R08: bb1414ac00000000 R09: bb1414ac00000000 [ 39.401672][ T3608] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb7765480 [ 39.409723][ T3608] R13: 00007fffb7765474 R14: 0000000000000003 R15: 0000000000000000 [ 39.417985][ T3608] [pid 3608] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3608, si_uid=0, si_status=1, si_utime=0, si_stime=125} --- exit_group(0) = ? +++ exited with 0 +++