./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1317416317 <...> Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. execve("./syz-executor1317416317", ["./syz-executor1317416317"], 0x7ffe884e3750 /* 10 vars */) = 0 brk(NULL) = 0x55555601b000 brk(0x55555601bc40) = 0x55555601bc40 arch_prctl(ARCH_SET_FS, 0x55555601b300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x55555601b5d0) = 304 set_robust_list(0x55555601b5e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f8de7058510, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f8de7058be0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f8de70585b0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f8de7058be0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1317416317", 4096) = 28 brk(0x55555603cc40) = 0x55555603cc40 brk(0x55555603d000) = 0x55555603d000 mprotect(0x7f8de7119000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555601b5d0) = 305 ./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x55555601b5e0, 24) = 0 [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] setpgid(0, 0) = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8de7028000 [pid 305] mprotect(0x7f8de7029000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 305] clone(child_stack=0x7f8de70483f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 306 attached , parent_tid=[306], tls=0x7f8de7048700, child_tidptr=0x7f8de70489d0) = 306 [pid 306] set_robust_list(0x7f8de70489e0, 24) = 0 [pid 306] futex(0x7f8de711f4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 306] <... futex resumed>) = 0 [pid 306] mkdirat(AT_FDCWD, "./file0", 000 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... mkdirat resumed>) = 0 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 306] futex(0x7f8de711f4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 306] <... futex resumed>) = 0 [pid 306] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... openat resumed>) = 3 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] read(3, "\x38\x00\x00\x00\x1a\x00\x00\x00\x02\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\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x1f\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x83", 8224) = 56 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x1f\x00\x00\x00\x00\x00\x00\x00\x15\x30\x02\x02\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = 80 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 21.516380][ T23] audit: type=1400 audit(1665858816.890:73): avc: denied { execmem } for pid=304 comm="syz-executor131" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.529015][ T23] audit: type=1400 audit(1665858816.900:74): avc: denied { read write } for pid=305 comm="syz-executor131" name="fuse" dev="devtmpfs" ino=9253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 21.532918][ T23] audit: type=1400 audit(1665858816.910:75): avc: denied { open } for pid=305 comm="syz-executor131" path="/dev/fuse" dev="devtmpfs" ino=9253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [pid 306] read(3, [pid 305] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 305] futex(0x7f8de711f4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8de7007000 [pid 305] mprotect(0x7f8de7008000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 305] clone(child_stack=0x7f8de70273f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[308], tls=0x7f8de7027700, child_tidptr=0x7f8de70279d0) = 308 [pid 305] futex(0x7f8de711f4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 308 attached [pid 308] set_robust_list(0x7f8de70279e0, 24) = 0 [pid 308] pivot_root("./file0", "./file0") = 0 [pid 308] futex(0x7f8de711f4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 305] <... futex resumed>) = 0 [pid 305] futex(0x7f8de711f4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7f8de711f4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 308] <... futex resumed>) = 1 [pid 308] openat(AT_FDCWD, "/proc/self/attr/exec", O_RDWR [pid 306] <... read resumed>"\x2d\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x34\x01\x00\x00\x00\x00\x00\x00\x70\x72\x6f\x63\x00", 8224) = 45 [pid 306] futex(0x7f8de711f4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 306] futex(0x7f8de711f4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 305] futex(0x7f8de711f4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 305] futex(0x7f8de711f4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = 0 [pid 305] <... futex resumed>) = 1 [pid 306] write(3, "\x2c\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x28\x39\x5c\x00", 44 [ 21.547678][ T23] audit: type=1400 audit(1665858816.910:76): avc: denied { mounton } for pid=305 comm="syz-executor131" path="/root/file0" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.570476][ T23] audit: type=1400 audit(1665858816.910:77): avc: denied { mount } for pid=305 comm="syz-executor131" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 305] futex(0x7f8de711f4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 305] exit_group(0) = ? [pid 304] kill(-305, SIGKILL) = 0 [pid 304] kill(305, SIGKILL) = 0 [ 66.799476][ T13] cfg80211: failed to load regulatory.db [ 66.809651][ T23] audit: type=1400 audit(1665858862.190:78): avc: denied { search } for pid=137 comm="syslogd" name="/" dev="fuse" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 307.439496][ T93] kworker/dying (93) used greatest stack depth: 26480 bytes left