./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor265664842 <...> Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts. execve("./syz-executor265664842", ["./syz-executor265664842"], 0x7ffd0ddbee20 /* 10 vars */) = 0 brk(NULL) = 0x555563713000 brk(0x555563713d40) = 0x555563713d40 arch_prctl(ARCH_SET_FS, 0x5555637133c0) = 0 set_tid_address(0x555563713690) = 289 set_robust_list(0x5555637136a0, 24) = 0 rseq(0x555563713ce0, 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-executor265664842", 4096) = 27 getrandom("\x67\xe0\xe8\x77\xcf\x17\x8e\x85", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563713d40 brk(0x555563734d40) = 0x555563734d40 brk(0x555563735000) = 0x555563735000 mprotect(0x7ff6554cd000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 mkdir("./syzkaller.5JKucG", 0700) = 0 chmod("./syzkaller.5JKucG", 0777) = 0 chdir("./syzkaller.5JKucG") = 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=0x555563713690) = 291 ./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x5555637136a0, 24) = 0 [pid 291] chdir("./0") = 0 [pid 291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 291] setpgid(0, 0) = 0 [pid 291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 291] write(3, "1000", 4) = 4 [pid 291] close(3) = 0 [pid 291] symlink("/dev/binderfs", "./binderfs") = 0 [pid 291] write(1, "executing program\n", 18executing program ) = 18 [pid 291] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] rt_sigaction(SIGRT_1, {sa_handler=0x7ff655470ff0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff6554621a0}, NULL, 8) = 0 [pid 291] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff6553e7000 [pid 291] mprotect(0x7ff6553e8000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff655407990, parent_tid=0x7ff655407990, exit_signal=0, stack=0x7ff6553e7000, stack_size=0x20300, tls=0x7ff6554076c0} => {parent_tid=[292]}, 88) = 292 [pid 291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 291] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 292 attached [pid 292] set_robust_list(0x7ff6554079a0, 24) = 0 [pid 292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 292] memfd_create("syzkaller", 0) = 3 [pid 292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff64cfe7000 [pid 292] write(3, "\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\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"..., 1048576) = 1048576 [pid 292] munmap(0x7ff64cfe7000, 138412032) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 292] close(3) = 0 [pid 292] close(4) = 0 [pid 292] mkdir("./file0", 0777) = 0 [ 22.514139][ T24] audit: type=1400 audit(1745293439.190:66): avc: denied { execmem } for pid=289 comm="syz-executor265" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.521180][ T24] audit: type=1400 audit(1745293439.200:67): avc: denied { read write } for pid=289 comm="syz-executor265" 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 [ 22.524954][ T24] audit: type=1400 audit(1745293439.200:68): avc: denied { open } for pid=289 comm="syz-executor265" 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 [ 22.528996][ T24] audit: type=1400 audit(1745293439.200:69): avc: denied { ioctl } for pid=289 comm="syz-executor265" 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 [pid 292] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, "jqfmt=vfsv0,norecovery,,errors=continue") = 0 [pid 292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 292] chdir("./file0") = 0 [pid 292] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 292] ioctl(4, LOOP_CLR_FD) = 0 [pid 292] close(4) = 0 [pid 292] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... futex resumed>) = 0 [pid 291] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... futex resumed>) = 1 [ 22.554906][ T24] audit: type=1400 audit(1745293439.230:70): avc: denied { mounton } for pid=291 comm="syz-executor265" path="/root/syzkaller.5JKucG/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 22.581402][ T292] EXT4-fs (loop0): mounted filesystem without journal. Opts: jqfmt=vfsv0,norecovery,,errors=continue [pid 292] openat(AT_FDCWD, "blkio.bfq.avg_queue_size", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 292] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... futex resumed>) = 0 [pid 291] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] futex(0x7ff6554d36dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff6553c6000 [pid 291] mprotect(0x7ff6553c7000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff6553e6990, parent_tid=0x7ff6553e6990, exit_signal=0, stack=0x7ff6553c6000, stack_size=0x20300, tls=0x7ff6553e66c0} => {parent_tid=[296]}, 88) = 296 [pid 291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 291] futex(0x7ff6554d36d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] futex(0x7ff6554d36dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... futex resumed>) = 1 [pid 292] write(4, "0x0000000000000000", 18) = 18 [pid 292] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 292] futex(0x7ff6554d36c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x7ff6553e69a0, 24) = 0 [pid 296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 296] write(4, "0x0000000000000000", 18) = 18 [pid 296] futex(0x7ff6554d36dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 291] <... futex resumed>) = 0 [pid 296] futex(0x7ff6554d36d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 291] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 291] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... futex resumed>) = 0 [pid 292] mmap(0x200000000000, 11755520, PROT_WRITE|PROT_EXEC, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x200000000000 [pid 292] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... futex resumed>) = 0 [pid 291] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 22.592249][ T24] audit: type=1400 audit(1745293439.270:71): avc: denied { mount } for pid=291 comm="syz-executor265" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 22.614773][ T24] audit: type=1400 audit(1745293439.280:72): avc: denied { write } for pid=291 comm="syz-executor265" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [pid 291] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... futex resumed>) = 1 [pid 292] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x200000000380} --- [pid 296] <... futex resumed>) = ? [pid 291] <... futex resumed>) = ? [pid 296] +++ killed by SIGBUS +++ [pid 292] +++ killed by SIGBUS +++ [pid 291] +++ killed by SIGBUS +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=291, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=5} --- 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, 0x555563714730 /* 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 [ 22.636746][ T24] audit: type=1400 audit(1745293439.280:73): avc: denied { add_name } for pid=291 comm="syz-executor265" name="blkio.bfq.avg_queue_size" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 22.651242][ T292] EXT4-fs error (device loop0): ext4_mb_generate_buddy:808: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.659345][ T24] audit: type=1400 audit(1745293439.280:74): avc: denied { create } for pid=291 comm="syz-executor265" name="blkio.bfq.avg_queue_size" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 22.695709][ T24] audit: type=1400 audit(1745293439.290:75): avc: denied { read append open } for pid=291 comm="syz-executor265" path="/root/syzkaller.5JKucG/0/file0/blkio.bfq.avg_queue_size" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55556371c770 /* 2 entries */, 32768) = 48 getdents64(4, 0x55556371c770 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/file0") = 0 getdents64(3, 0x555563714730 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./0") = 0 mkdir("./1", 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=0x555563713690) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x5555637136a0, 24) = 0 [pid 297] chdir("./1") = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] setpgid(0, 0) = 0 [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] write(3, "1000", 4) = 4 [pid 297] close(3) = 0 [pid 297] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 297] write(1, "executing program\n", 18) = 18 [pid 297] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] rt_sigaction(SIGRT_1, {sa_handler=0x7ff655470ff0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff6554621a0}, NULL, 8) = 0 [pid 297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff6553e7000 [pid 297] mprotect(0x7ff6553e8000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff655407990, parent_tid=0x7ff655407990, exit_signal=0, stack=0x7ff6553e7000, stack_size=0x20300, tls=0x7ff6554076c0}./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x7ff6554079a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7ff6554d36c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 297] <... clone3 resumed> => {parent_tid=[298]}, 88) = 298 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] <... futex resumed>) = 0 [pid 298] memfd_create("syzkaller", 0) = 3 [pid 298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff64cfe7000 [pid 297] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 298] write(3, "\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\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"..., 1048576) = 1048576 [pid 298] munmap(0x7ff64cfe7000, 138412032) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 298] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 298] close(3) = 0 [pid 298] close(4) = 0 [pid 298] mkdir("./file0", 0777) = 0 [pid 298] mount("/dev/loop0", "./file0", "ext4", MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, "jqfmt=vfsv0,norecovery,,errors=continue") = 0 [pid 298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 298] chdir("./file0") = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 298] ioctl(4, LOOP_CLR_FD) = 0 [pid 298] close(4) = 0 [pid 298] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7ff6554d36cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] openat(AT_FDCWD, "blkio.bfq.avg_queue_size", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 298] futex(0x7ff6554d36cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7ff6554d36c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7ff6554d36dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff6553c6000 [pid 297] mprotect(0x7ff6553c7000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff6553e6990, parent_tid=0x7ff6553e6990, exit_signal=0, stack=0x7ff6553c6000, stack_size=0x20300, tls=0x7ff6553e66c0} => {parent_tid=[302]}, 88) = 302 [pid 298] write(4, "0x0000000000000000", 18 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] futex(0x7ff6554d36d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7ff6554d36dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x7ff6553e69a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 302] write(4, "0x0000000000000000", 18) = 18 [pid 302] futex(0x7ff6554d36dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7ff6554d36d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7ff6554d36dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [pid 302] mmap(0x200000000000, 11755520, PROT_WRITE|PROT_EXEC, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x200000000000 [pid 302] futex(0x7ff6554d36dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7ff6554d36d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7ff6554d36dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [pid 302] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x200000000380} --- [pid 298] <... write resumed>) = 18 [pid 297] <... futex resumed>) = ? [pid 302] +++ killed by SIGBUS +++ [pid 298] +++ killed by SIGBUS +++ [pid 297] +++ killed by SIGBUS +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=297, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=4} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1", 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, 0x555563714730 /* 4 entries */, 32768) = 112 umount2("./1/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./1/binderfs") = 0 [ 22.890906][ T298] EXT4-fs (loop0): mounted filesystem without journal. Opts: jqfmt=vfsv0,norecovery,,errors=continue [ 22.912503][ T302] EXT4-fs error (device loop0): ext4_mb_generate_buddy:808: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 22.941251][ T49] ------------[ cut here ]------------ [ 22.946547][ T49] kernel BUG at fs/ext4/inode.c:2777! [ 22.951815][ T49] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 22.957635][ T49] CPU: 0 PID: 49 Comm: kworker/u4:2 Not tainted 5.10.236-syzkaller #0 [ 22.965616][ T49] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 22.975537][ T49] Workqueue: writeback wb_workfn (flush-7:0) [ 22.981344][ T49] RIP: 0010:ext4_writepages+0x3bdf/0x3c00 [ 22.986881][ T49] Code: 61 8c ff 31 ff 89 de e8 7f 61 8c ff 45 84 f6 75 27 e8 e5 5e 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 d1 5e 8c ff <0f> 0b e8 ca 5e 8c ff e8 a1 19 22 ff eb 9b e8 be 5e 8c ff e8 95 19 [ 23.006378][ T49] RSP: 0018:ffffc900009e70a0 EFLAGS: 00010293 [ 23.012239][ T49] RAX: ffffffff81de611f RBX: 0000008000000000 RCX: ffff888109a913c0 [ 23.020066][ T49] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 23.027932][ T49] RBP: ffffc900009e7490 R08: ffffffff81de2b93 R09: ffffed10241048e7 [ 23.035745][ T49] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 23.043560][ T49] R13: ffffc900009e77d0 R14: 000000c410000000 R15: ffffc900009e7360 [ 23.051370][ T49] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.060134][ T49] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.066567][ T49] CR2: 000055556371c738 CR3: 0000000105d8c000 CR4: 00000000003506b0 [ 23.074375][ T49] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.082189][ T49] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.089987][ T49] Call Trace: [ 23.093118][ T49] ? update_load_avg+0xdaa/0x1690 [ 23.097975][ T49] ? enqueue_task_fair+0xd14/0x2820 [ 23.103010][ T49] ? sched_group_set_shares+0x490/0x490 [ 23.108388][ T49] ? ext4_readpage+0x230/0x230 [ 23.112995][ T49] ? ext4_readpage+0x230/0x230 [ 23.117588][ T49] do_writepages+0x12e/0x270 [ 23.122015][ T49] ? __writepage+0x130/0x130 [ 23.126440][ T49] ? __kasan_check_write+0x14/0x20 [ 23.131387][ T49] ? _raw_spin_lock+0xa4/0x1b0 [ 23.135988][ T49] __writeback_single_inode+0xd7/0xac0 [ 23.141282][ T49] writeback_sb_inodes+0x99c/0x16b0 [ 23.146318][ T49] ? _raw_spin_lock+0xa4/0x1b0 [ 23.150918][ T49] ? queue_io+0x520/0x520 [ 23.155261][ T49] ? writeback_sb_inodes+0x16b0/0x16b0 [ 23.160545][ T49] ? queue_io+0x3d3/0x520 [ 23.164711][ T49] wb_writeback+0x404/0xc60 [ 23.169052][ T49] ? wb_io_lists_depopulated+0x180/0x180 [ 23.174517][ T49] ? set_worker_desc+0x158/0x1c0 [ 23.179290][ T49] ? update_load_avg+0x541/0x1690 [ 23.184151][ T49] ? __kasan_check_write+0x14/0x20 [ 23.189099][ T49] wb_workfn+0x3d9/0x1110 [ 23.193266][ T49] ? inode_wait_for_writeback+0x280/0x280 [ 23.198816][ T49] ? __update_idle_core+0x2a0/0x2a0 [ 23.203852][ T49] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.208883][ T49] ? finish_task_switch+0x130/0x5a0 [ 23.213917][ T49] ? __switch_to_asm+0x34/0x60 [ 23.218520][ T49] ? __kasan_check_read+0x11/0x20 [ 23.223377][ T49] ? read_word_at_a_time+0x12/0x20 [ 23.228335][ T49] ? strscpy+0x9c/0x260 [ 23.232324][ T49] process_one_work+0x6dc/0xbd0 [ 23.237003][ T49] worker_thread+0xaea/0x1510 [ 23.241517][ T49] ? _raw_spin_lock+0x1b0/0x1b0 [ 23.246205][ T49] kthread+0x34b/0x3d0 [ 23.250109][ T49] ? worker_clr_flags+0x180/0x180 [ 23.254973][ T49] ? kthread_blkcg+0xd0/0xd0 [ 23.259395][ T49] ret_from_fork+0x1f/0x30 [ 23.263643][ T49] Modules linked in: [ 23.267896][ T49] ---[ end trace 7b12fc7f199617a8 ]--- [ 23.273269][ T49] RIP: 0010:ext4_writepages+0x3bdf/0x3c00 [ 23.278715][ T49] Code: 61 8c ff 31 ff 89 de e8 7f 61 8c ff 45 84 f6 75 27 e8 e5 5e 8c ff 49 be 00 00 00 00 00 fc ff df e9 0e f7 ff ff e8 d1 5e 8c ff <0f> 0b e8 ca 5e 8c ff e8 a1 19 22 ff eb 9b e8 be 5e 8c ff e8 95 19 [ 23.298300][ T49] RSP: 0018:ffffc900009e70a0 EFLAGS: 00010293 [ 23.304174][ T49] RAX: ffffffff81de611f RBX: 0000008000000000 RCX: ffff888109a913c0 [ 23.311986][ T49] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 23.319802][ T49] RBP: ffffc900009e7490 R08: ffffffff81de2b93 R09: ffffed10241048e7 [ 23.327576][ T49] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 23.335512][ T49] R13: ffffc900009e77d0 R14: 000000c410000000 R15: ffffc900009e7360 [ 23.343396][ T49] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.352164][ T49] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.358564][ T49] CR2: 000055556371c738 CR3: 000000010c2ca000 CR4: 00000000003506b0 [ 23.366422][ T49] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.374205][ T49] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.382023][ T49] Kernel panic - not syncing: Fatal exception [ 23.388155][ T49] Kernel Offset: disabled [ 23.392297][ T49] Rebooting in 86400 seconds..