./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1307135221 <...> Warning: Permanently added '10.128.0.90' (ED25519) to the list of known hosts. execve("./syz-executor1307135221", ["./syz-executor1307135221"], 0x7ffff7447bc0 /* 10 vars */) = 0 brk(NULL) = 0x555556b7a000 brk(0x555556b7ad00) = 0x555556b7ad00 arch_prctl(ARCH_SET_FS, 0x555556b7a380) = 0 set_tid_address(0x555556b7a650) = 293 set_robust_list(0x555556b7a660, 24) = 0 rseq(0x555556b7aca0, 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-executor1307135221", 4096) = 28 getrandom("\x67\xfe\x13\xfc\x0d\xed\xc3\x28", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b7ad00 brk(0x555556b9bd00) = 0x555556b9bd00 brk(0x555556b9c000) = 0x555556b9c000 mprotect(0x7fdb717e9000, 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.4U9xeq", 0700) = 0 chmod("./syzkaller.4U9xeq", 0777) = 0 chdir("./syzkaller.4U9xeq") = 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=0x555556b7a650) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x555556b7a660, 24) = 0 [pid 295] chdir("./0") = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] symlink("/dev/binderfs", "./binderfs") = 0 [pid 295] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 295] read(3, "", 8224) = 0 [pid 295] memfd_create("syzkaller", 0) = 4 [pid 295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fdb69335000 [pid 295] write(4, "\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 295] munmap(0x7fdb69335000, 138412032) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 295] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 295] close(4) = 0 [pid 295] close(5) = 0 [pid 295] mkdir("./file0", 0777) = 0 [ 21.023997][ T28] audit: type=1400 audit(1713519723.723:66): avc: denied { execmem } for pid=293 comm="syz-executor130" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.031104][ T28] audit: type=1400 audit(1713519723.723:67): avc: denied { read write } for pid=293 comm="syz-executor130" 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 [ 21.039391][ T28] audit: type=1400 audit(1713519723.723:68): avc: denied { open } for pid=293 comm="syz-executor130" 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 [ 21.049342][ T295] loop0: detected capacity change from 0 to 256 [ 21.054117][ T28] audit: type=1400 audit(1713519723.723:69): avc: denied { ioctl } for pid=293 comm="syz-executor130" 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 [ 21.066975][ T295] exfat: Deprecated parameter 'utf8' [ 21.086395][ T28] audit: type=1400 audit(1713519723.763:70): avc: denied { mounton } for pid=295 comm="syz-executor130" path="/root/syzkaller.4U9xeq/0/file0" dev="sda1" ino=1931 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 295] mount("/dev/loop0", "./file0", "exfat", MS_NODIRATIME, "dmask=00000000000000000000007,utf8,iocharset=iso8859-1,allow_utime=00000000000000000002001,fmask=000"...) = 0 [pid 295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 4 [pid 295] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 295] ioctl(5, LOOP_CLR_FD) = 0 [pid 295] close(5) = 0 [pid 295] clone(child_stack=NULL, flags=0) = 297 [pid 295] exit_group(0) = ? [pid 295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=295, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 297 attached ) = 0 [pid 293] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x555556b7b6f0 /* 5 entries */, 32768) = 168 [pid 293] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./0/binderfs") = 0 [pid 293] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 293] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0776, st_size=61440, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 293] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 293] newfstatat(4, "", {st_mode=S_IFDIR|0776, st_size=61440, ...}, AT_EMPTY_PATH) = 0 [ 21.116482][ T295] exFAT-fs (loop0): failed to load upcase table (idx : 0x00010000, chksum : 0xc61f63e4, utbl_chksum : 0xe619d30d) [ 21.129285][ T28] audit: type=1400 audit(1713519723.833:71): avc: denied { mount } for pid=295 comm="syz-executor130" name="/" dev="loop0" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 21.158177][ T28] audit: type=1400 audit(1713519723.853:72): avc: denied { unmount } for pid=293 comm="syz-executor130" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [pid 293] getdents64(4, [pid 297] exit(0) = ? [pid 297] +++ exited with 0 +++