./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3252875514 <...> DUID 00:04:a3:03:08:15:93:78:e3:1f:4c:1c:fb:56:e6:f5:4b:05 forked to background, child pid 3178 [ 29.553120][ T3179] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.563474][ T3179] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. execve("./syz-executor3252875514", ["./syz-executor3252875514"], 0x7ffe7ef52fd0 /* 10 vars */) = 0 brk(NULL) = 0x555556941000 brk(0x555556941c40) = 0x555556941c40 arch_prctl(ARCH_SET_FS, 0x555556941300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3252875514", 4096) = 28 brk(0x555556962c40) = 0x555556962c40 brk(0x555556963000) = 0x555556963000 mprotect(0x7fa876489000, 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 3600 attached , child_tidptr=0x5555569415d0) = 3600 [pid 3600] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3600] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3600] setsid() = 1 [pid 3600] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3600] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3600] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3600] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3600] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3600] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3600] unshare(CLONE_NEWNS) = 0 [pid 3600] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3600] unshare(CLONE_NEWIPC) = 0 [pid 3600] unshare(CLONE_NEWCGROUP) = 0 [pid 3600] unshare(CLONE_NEWUTS) = 0 [pid 3600] unshare(CLONE_SYSVSEM) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "16777216", 8) = 8 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "536870912", 9) = 9 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "1024", 4) = 4 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "8192", 4) = 4 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "1024", 4) = 4 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "1024", 4) = 4 [pid 3600] close(3) = 0 [pid 3600] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3600] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3600] close(3) = 0 [pid 3600] getpid() = 1 [pid 3600] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 3600] kill(-2, SIGKILL) = 0 [pid 3600] kill(2, SIGKILL) = 0 [pid 3600] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 3600] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 3600] getdents64(3, 0x555556942620 /* 2 entries */, 32768) = 48 [pid 3600] getdents64(3, 0x555556942620 /* 0 entries */, 32768) = 0 [pid 3600] close(3) = 0 [ 76.273785][ T143] cfg80211: failed to load regulatory.db [ 194.597671][ T3615] unregister_netdevice: waiting for vlan0 to become free. Usage count = 2