./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor944781643 <...> Warning: Permanently added '10.128.0.51' (ED25519) to the list of known hosts. execve("./syz-executor944781643", ["./syz-executor944781643"], 0x7ffc7fc76e00 /* 10 vars */) = 0 brk(NULL) = 0x555555bac000 brk(0x555555bacd00) = 0x555555bacd00 arch_prctl(ARCH_SET_FS, 0x555555bac380) = 0 set_tid_address(0x555555bac650) = 286 set_robust_list(0x555555bac660, 24) = 0 rseq(0x555555bacca0, 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-executor944781643", 4096) = 27 getrandom("\xd6\xb8\x74\x3e\x64\x98\x60\xa7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555bacd00 brk(0x555555bcdd00) = 0x555555bcdd00 brk(0x555555bce000) = 0x555555bce000 mprotect(0x7fb5fed99000, 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 mkdir("./syzkaller.LrIEOR", 0700) = 0 chmod("./syzkaller.LrIEOR", 0777) = 0 chdir("./syzkaller.LrIEOR") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bac650) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x555555bac660, 24) = 0 [pid 288] chdir("./0") = 0 [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setpgid(0, 0) = 0 [pid 288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 288] write(3, "1000", 4) = 4 [pid 288] close(3) = 0 [pid 288] symlink("/dev/binderfs", "./binderfs") = 0 [pid 288] memfd_create("syzkaller", 0) = 3 [pid 288] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb5f68e5000 [pid 288] write(3, "\xeb\x76\x90\x45\x58\x46\x41\x54\x20\x20\x20\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x08\x00\x00\x00\x88\x00\x00\x00\x0f\x00\x00\x00\x05\x00\x00\x00"..., 131072) = 131072 [pid 288] munmap(0x7fb5f68e5000, 138412032) = 0 [pid 288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 288] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 288] close(3) = 0 [pid 288] close(4) = 0 [pid 288] mkdir("./file0", 0777) = 0 [ 19.872418][ T24] audit: type=1400 audit(1712826464.140:66): avc: denied { execmem } for pid=286 comm="syz-executor944" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.876369][ T24] audit: type=1400 audit(1712826464.140:67): avc: denied { read write } for pid=286 comm="syz-executor944" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.880633][ T24] audit: type=1400 audit(1712826464.140:68): avc: denied { open } for pid=286 comm="syz-executor944" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.884892][ T24] audit: type=1400 audit(1712826464.140:69): avc: denied { ioctl } for pid=286 comm="syz-executor944" path="/dev/loop0" dev="devtmpfs" ino=111 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.893028][ T288] ====================================================== [ 19.893028][ T288] WARNING: the mand mount option is being deprecated and [ 19.893028][ T288] will be removed in v5.15! [ 19.893028][ T288] ====================================================== [ 19.893036][ T24] audit: type=1400 audit(1712826464.170:70): avc: denied { mounton } for pid=288 comm="syz-executor944" path="/root/syzkaller.LrIEOR/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 19.958743][ T288] exFAT-fs (loop0): failed to load upcase table (idx : 0x00010000, chksum : 0xa327165c, utbl_chksum : 0xe619d30d) [pid 288] mount("/dev/loop0", "./file0", "exfat", MS_NODEV|MS_NOEXEC|MS_MANDLOCK|MS_NODIRATIME|MS_BORN, "") = 0 [pid 288] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 288] chdir("./file0") = 0 [pid 288] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 288] ioctl(4, LOOP_CLR_FD) = 0 [pid 288] close(4) = 0 [pid 288] mount(NULL, "./file0", "debugfs", 0, NULL) = 0 [pid 288] exit_group(0) = ? [pid 288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=288, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x555555bad6f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=61440, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=61440, ...}, AT_EMPTY_PATH) = 0 [ 19.971291][ T24] audit: type=1400 audit(1712826464.250:71): avc: denied { mount } for pid=288 comm="syz-executor944" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 19.993964][ T24] audit: type=1400 audit(1712826464.250:72): avc: denied { mounton } for pid=288 comm="syz-executor944" path="/root/syzkaller.LrIEOR/0/file0/file0" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.019406][ T24] audit: type=1400 audit(1712826464.250:73): avc: denied { mount } for pid=288 comm="syz-executor944" name="/" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=filesystem permissive=1 [ 20.041951][ T24] audit: type=1400 audit(1712826464.270:74): avc: denied { unmount } for pid=286 comm="syz-executor944" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1