./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1339538429 <...> Warning: Permanently added '10.128.1.191' (ED25519) to the list of known hosts. execve("./syz-executor1339538429", ["./syz-executor1339538429"], 0x7ffcc5a95da0 /* 10 vars */) = 0 brk(NULL) = 0x55555608c000 brk(0x55555608cd00) = 0x55555608cd00 arch_prctl(ARCH_SET_FS, 0x55555608c380) = 0 set_tid_address(0x55555608c650) = 297 set_robust_list(0x55555608c660, 24) = 0 rseq(0x55555608cca0, 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-executor1339538429", 4096) = 28 getrandom("\x63\x14\x09\xec\xdf\xac\x88\x22", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555608cd00 brk(0x5555560add00) = 0x5555560add00 brk(0x5555560ae000) = 0x5555560ae000 mprotect(0x7f317cb63000, 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 chmod("/dev/raw-gadget", 0666) = 0 getrandom("\x77\x33\xd4\x05\x7a\x02\xf6\x49", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.NgHzsS", 0700) = 0 chmod("./syzkaller.NgHzsS", 0777) = 0 chdir("./syzkaller.NgHzsS") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555608c650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x55555608c660, 24) = 0 [pid 298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setsid() = 1 [pid 298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 298] unshare(CLONE_NEWNS) = 0 [pid 298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 298] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 298] unshare(CLONE_NEWCGROUP) = 0 [pid 298] unshare(CLONE_NEWUTS) = 0 [pid 298] unshare(CLONE_SYSVSEM) = 0 [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] getpid() = 1 [pid 298] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 298] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 298] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 298] getdents64(3, 0x55555608d6f0 /* 5 entries */, 32768) = 168 [pid 298] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 298] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] unlink("./0/binderfs") = 0 [pid 298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 298] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0776, st_size=61440, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 298] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 298] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 298] newfstatat(4, "", {st_mode=S_IFDIR|0776, st_size=61440, ...}, AT_EMPTY_PATH) = 0 [ 23.421050][ T28] audit: type=1400 audit(1713165061.661:71): avc: denied { mounton } for pid=298 comm="syz-executor133" path="/dev/binderfs" dev="devtmpfs" ino=370 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 23.444264][ T28] audit: type=1400 audit(1713165061.661:72): avc: denied { mount } for pid=298 comm="syz-executor133" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 23.467036][ T28] audit: type=1400 audit(1713165061.661:73): avc: denied { read write } for pid=298 comm="syz-executor133" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.491464][ T28] audit: type=1400 audit(1713165061.661:74): avc: denied { open } for pid=298 comm="syz-executor133" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 23.515827][ T28] audit: type=1400 audit(1713165061.671:75): avc: denied { ioctl } for pid=298 comm="syz-executor133" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 298] getdents64(4, [pid 302] exit(0) = ? [pid 302] +++ exited with 0 +++