./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3808656929 <...> [ 101.814880][ T779] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.1.16' (ED25519) to the list of known hosts. execve("./syz-executor3808656929", ["./syz-executor3808656929"], 0x7fffe1221dc0 /* 10 vars */) = 0 brk(NULL) = 0x55558af1f000 brk(0x55558af1fe00) = 0x55558af1fe00 arch_prctl(ARCH_SET_FS, 0x55558af1f480) = 0 set_tid_address(0x55558af1f750) = 5083 set_robust_list(0x55558af1f760, 24) = 0 rseq(0x55558af1fda0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3808656929", 4096) = 28 getrandom("\x43\x8f\x5b\xd7\x74\x7f\xf7\xd3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558af1fe00 brk(0x55558af40e00) = 0x55558af40e00 brk(0x55558af41000) = 0x55558af41000 mprotect(0x7f473d346000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f473d29b940, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f473d2a4670}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f473d29b940, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f473d2a4670}, NULL, 8) = 0 mkdir("./syzkaller.axqtMq", 0700) = 0 chmod("./syzkaller.axqtMq", 0777) = 0 chdir("./syzkaller.axqtMq") = 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./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x55558af1f760, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55558af1f750) = 5085 [pid 5085] <... set_robust_list resumed>) = 0 [pid 5085] chdir("./0") = 0 [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setpgid(0, 0) = 0 [pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1000", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5085] memfd_create("syzkaller", 0) = 3 [pid 5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5085] 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"..., 262144) = 262144 [pid 5085] munmap(0x7f4734e00000, 138412032) = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5085] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5085] close(3) = 0 [pid 5085] close(4) = 0 [pid 5085] mkdir("./bus", 0777) = 0 [ 105.212983][ T5085] loop0: detected capacity change from 0 to 512 [pid 5085] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5085] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5085] chdir("./bus") = 0 [pid 5085] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5085] mkdir("./bus", 0777) = 0 [pid 5085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5085] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5085] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 105.273621][ T5085] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 105.286287][ T5085] ext4 filesystem being mounted at /root/syzkaller.axqtMq/0/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5085] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5085] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5085] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5085] exit_group(0) = ? [pid 5085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- 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 [ 105.333613][ T28] audit: type=1800 audit(1714031298.888:2): pid=5085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 105.356902][ T28] audit: type=1800 audit(1714031298.918:3): pid=5085 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 [ 105.429622][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/bus") = 0 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 getdents64(3, 0x55558af207f0 /* 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) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached , child_tidptr=0x55558af1f750) = 5089 [pid 5089] set_robust_list(0x55558af1f760, 24) = 0 [pid 5089] chdir("./1") = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 [pid 5089] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5089] memfd_create("syzkaller", 0) = 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5089] 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"..., 262144) = 262144 [pid 5089] munmap(0x7f4734e00000, 138412032) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5089] close(3) = 0 [pid 5089] close(4) = 0 [pid 5089] mkdir("./bus", 0777) = 0 [ 105.668758][ T5089] loop0: detected capacity change from 0 to 512 [pid 5089] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5089] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5089] chdir("./bus") = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5089] mkdir("./bus", 0777) = 0 [pid 5089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5089] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 105.719495][ T5089] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 105.732136][ T5089] ext4 filesystem being mounted at /root/syzkaller.axqtMq/1/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5089] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5089] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5089] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5089] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5089] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 105.793816][ T28] audit: type=1800 audit(1714031299.348:4): pid=5089 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 105.817200][ T28] audit: type=1800 audit(1714031299.378:5): pid=5089 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./1/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./1/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./1/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./1/bus") = 0 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 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./1") = 0 mkdir("./2", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 105.871876][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached , child_tidptr=0x55558af1f750) = 5092 [pid 5092] set_robust_list(0x55558af1f760, 24) = 0 [pid 5092] chdir("./2") = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5092] memfd_create("syzkaller", 0) = 3 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5092] 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"..., 262144) = 262144 [pid 5092] munmap(0x7f4734e00000, 138412032) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5092] close(3) = 0 [pid 5092] close(4) = 0 [pid 5092] mkdir("./bus", 0777) = 0 [ 106.102129][ T5092] loop0: detected capacity change from 0 to 512 [pid 5092] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5092] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5092] chdir("./bus") = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 106.169721][ T5092] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 106.182844][ T5092] ext4 filesystem being mounted at /root/syzkaller.axqtMq/2/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5092] mkdir("./bus", 0777) = 0 [pid 5092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5092] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5092] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5092] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5092] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5092] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5092] exit_group(0) = ? [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 106.249883][ T28] audit: type=1800 audit(1714031299.798:6): pid=5092 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 106.273238][ T28] audit: type=1800 audit(1714031299.828:7): pid=5092 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./2/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./2/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./2/bus") = 0 umount2("./2/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./2/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./2/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./2") = 0 mkdir("./3", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 106.333662][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached , child_tidptr=0x55558af1f750) = 5095 [pid 5095] set_robust_list(0x55558af1f760, 24) = 0 [pid 5095] chdir("./3") = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5095] memfd_create("syzkaller", 0) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5095] 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"..., 262144) = 262144 [pid 5095] munmap(0x7f4734e00000, 138412032) = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5095] close(3) = 0 [pid 5095] close(4) = 0 [pid 5095] mkdir("./bus", 0777) = 0 [ 106.498753][ T5095] loop0: detected capacity change from 0 to 512 [pid 5095] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5095] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5095] chdir("./bus") = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5095] mkdir("./bus", 0777) = 0 [pid 5095] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5095] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 106.559397][ T5095] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 106.572137][ T5095] ext4 filesystem being mounted at /root/syzkaller.axqtMq/3/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5095] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5095] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5095] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5095] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5095] exit_group(0) = ? [pid 5095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 106.628414][ T28] audit: type=1800 audit(1714031300.178:8): pid=5095 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 106.651193][ T28] audit: type=1800 audit(1714031300.208:9): pid=5095 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./3/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./3/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./3/bus") = 0 umount2("./3/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./3/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./3/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./3") = 0 mkdir("./4", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 106.694836][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x55558af1f750) = 5098 [pid 5098] set_robust_list(0x55558af1f760, 24) = 0 [pid 5098] chdir("./4") = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5098] memfd_create("syzkaller", 0) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5098] 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"..., 262144) = 262144 [pid 5098] munmap(0x7f4734e00000, 138412032) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5098] close(3) = 0 [pid 5098] close(4) = 0 [pid 5098] mkdir("./bus", 0777) = 0 [ 106.892605][ T5098] loop0: detected capacity change from 0 to 512 [pid 5098] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5098] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5098] chdir("./bus") = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5098] mkdir("./bus", 0777) = 0 [pid 5098] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5098] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 106.941428][ T5098] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 106.954256][ T5098] ext4 filesystem being mounted at /root/syzkaller.axqtMq/4/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5098] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5098] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5098] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5098] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5098] exit_group(0) = ? [pid 5098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./4", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 107.021961][ T28] audit: type=1800 audit(1714031300.568:10): pid=5098 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 107.042857][ T28] audit: type=1800 audit(1714031300.588:11): pid=5098 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./4/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./4/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./4/bus") = 0 umount2("./4/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./4/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./4/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./4") = 0 mkdir("./5", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 107.073312][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached , child_tidptr=0x55558af1f750) = 5102 [pid 5102] set_robust_list(0x55558af1f760, 24) = 0 [pid 5102] chdir("./5") = 0 [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setpgid(0, 0) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1000", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5102] memfd_create("syzkaller", 0) = 3 [pid 5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5102] 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"..., 262144) = 262144 [pid 5102] munmap(0x7f4734e00000, 138412032) = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5102] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5102] close(3) = 0 [pid 5102] close(4) = 0 [pid 5102] mkdir("./bus", 0777) = 0 [ 107.262232][ T5102] loop0: detected capacity change from 0 to 512 [pid 5102] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5102] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5102] chdir("./bus") = 0 [pid 5102] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5102] mkdir("./bus", 0777) = 0 [pid 5102] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5102] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5102] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 107.319182][ T5102] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 107.331797][ T5102] ext4 filesystem being mounted at /root/syzkaller.axqtMq/5/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5102] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5102] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5102] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5102] exit_group(0) = ? [pid 5102] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./5", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./5/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./5/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./5/bus") = 0 umount2("./5/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./5/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./5/binderfs") = 0 [ 107.443746][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./5") = 0 mkdir("./6", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached [pid 5105] set_robust_list(0x55558af1f760, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55558af1f750) = 5105 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5105] chdir("./6") = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5105] setpgid(0, 0) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5105] write(3, "1000", 4) = 4 [pid 5105] close(3) = 0 [pid 5105] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5105] memfd_create("syzkaller", 0) = 3 [pid 5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5105] 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"..., 262144) = 262144 [pid 5105] munmap(0x7f4734e00000, 138412032) = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5105] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5105] close(3) = 0 [pid 5105] close(4) = 0 [pid 5105] mkdir("./bus", 0777) = 0 [ 107.649956][ T5105] loop0: detected capacity change from 0 to 512 [pid 5105] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5105] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5105] chdir("./bus") = 0 [pid 5105] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5105] mkdir("./bus", 0777) = 0 [pid 5105] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5105] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 107.700825][ T5105] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 107.713490][ T5105] ext4 filesystem being mounted at /root/syzkaller.axqtMq/6/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5105] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5105] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5105] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5105] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5105] exit_group(0) = ? [pid 5105] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./6", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./6/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./6/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./6/bus") = 0 umount2("./6/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./6/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./6/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./6") = 0 mkdir("./7", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 107.832808][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached , child_tidptr=0x55558af1f750) = 5108 [pid 5108] set_robust_list(0x55558af1f760, 24) = 0 [pid 5108] chdir("./7") = 0 [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5108] setpgid(0, 0) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5108] write(3, "1000", 4) = 4 [pid 5108] close(3) = 0 [pid 5108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5108] memfd_create("syzkaller", 0) = 3 [pid 5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5108] 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"..., 262144) = 262144 [pid 5108] munmap(0x7f4734e00000, 138412032) = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5108] close(3) = 0 [pid 5108] close(4) = 0 [pid 5108] mkdir("./bus", 0777) = 0 [ 108.018998][ T5108] loop0: detected capacity change from 0 to 512 [pid 5108] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5108] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5108] chdir("./bus") = 0 [pid 5108] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 108.070017][ T5108] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 108.082684][ T5108] ext4 filesystem being mounted at /root/syzkaller.axqtMq/7/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5108] mkdir("./bus", 0777) = 0 [pid 5108] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5108] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5108] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5108] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5108] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5108] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5108] exit_group(0) = ? [pid 5108] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./7", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./7/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./7/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./7/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 [ 108.175930][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. rmdir("./7/bus") = 0 umount2("./7/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./7/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./7/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./7") = 0 mkdir("./8", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached , child_tidptr=0x55558af1f750) = 5111 [pid 5111] set_robust_list(0x55558af1f760, 24) = 0 [pid 5111] chdir("./8") = 0 [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5111] setpgid(0, 0) = 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5111] write(3, "1000", 4) = 4 [pid 5111] close(3) = 0 [pid 5111] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5111] memfd_create("syzkaller", 0) = 3 [pid 5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5111] 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"..., 262144) = 262144 [pid 5111] munmap(0x7f4734e00000, 138412032) = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5111] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5111] close(3) = 0 [pid 5111] close(4) = 0 [pid 5111] mkdir("./bus", 0777) = 0 [ 108.407696][ T5111] loop0: detected capacity change from 0 to 512 [pid 5111] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5111] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5111] chdir("./bus") = 0 [pid 5111] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5111] mkdir("./bus", 0777) = 0 [pid 5111] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5111] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5111] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5111] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5111] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [ 108.461184][ T5111] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 108.473836][ T5111] ext4 filesystem being mounted at /root/syzkaller.axqtMq/8/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5111] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5111] exit_group(0) = ? [pid 5111] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./8", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./8/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./8/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./8/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./8/bus") = 0 umount2("./8/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./8/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./8/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./8") = 0 mkdir("./9", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 108.544544][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached , child_tidptr=0x55558af1f750) = 5114 [pid 5114] set_robust_list(0x55558af1f760, 24) = 0 [pid 5114] chdir("./9") = 0 [pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5114] setpgid(0, 0) = 0 [pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5114] write(3, "1000", 4) = 4 [pid 5114] close(3) = 0 [pid 5114] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5114] memfd_create("syzkaller", 0) = 3 [pid 5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5114] 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"..., 262144) = 262144 [pid 5114] munmap(0x7f4734e00000, 138412032) = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5114] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5114] close(3) = 0 [pid 5114] close(4) = 0 [pid 5114] mkdir("./bus", 0777) = 0 [ 108.781081][ T5114] loop0: detected capacity change from 0 to 512 [pid 5114] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5114] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5114] chdir("./bus") = 0 [pid 5114] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5114] mkdir("./bus", 0777) = 0 [pid 5114] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 108.821340][ T5114] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 108.834097][ T5114] ext4 filesystem being mounted at /root/syzkaller.axqtMq/9/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5114] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5114] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5114] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5114] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5114] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5114] exit_group(0) = ? [pid 5114] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./9", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./9/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./9/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./9/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./9/bus") = 0 umount2("./9/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./9/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./9/binderfs") = 0 [ 108.969714][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./9") = 0 mkdir("./10", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5117 attached , child_tidptr=0x55558af1f750) = 5117 [pid 5117] set_robust_list(0x55558af1f760, 24) = 0 [pid 5117] chdir("./10") = 0 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5117] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5117] write(3, "1000", 4) = 4 [pid 5117] close(3) = 0 [pid 5117] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5117] memfd_create("syzkaller", 0) = 3 [pid 5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5117] 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"..., 262144) = 262144 [pid 5117] munmap(0x7f4734e00000, 138412032) = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5117] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5117] close(3) = 0 [pid 5117] close(4) = 0 [pid 5117] mkdir("./bus", 0777) = 0 [ 109.199652][ T5117] loop0: detected capacity change from 0 to 512 [pid 5117] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5117] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5117] chdir("./bus") = 0 [pid 5117] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5117] mkdir("./bus", 0777) = 0 [pid 5117] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5117] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5117] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 109.255738][ T5117] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 109.268390][ T5117] ext4 filesystem being mounted at /root/syzkaller.axqtMq/10/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5117] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5117] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5117] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5117] exit_group(0) = ? [pid 5117] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./10", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./10/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./10/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./10/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 [ 109.395690][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. close(4) = 0 rmdir("./10/bus") = 0 umount2("./10/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./10/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./10/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./10") = 0 mkdir("./11", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5120 attached , child_tidptr=0x55558af1f750) = 5120 [pid 5120] set_robust_list(0x55558af1f760, 24) = 0 [pid 5120] chdir("./11") = 0 [pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5120] setpgid(0, 0) = 0 [pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5120] write(3, "1000", 4) = 4 [pid 5120] close(3) = 0 [pid 5120] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5120] memfd_create("syzkaller", 0) = 3 [pid 5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5120] 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"..., 262144) = 262144 [pid 5120] munmap(0x7f4734e00000, 138412032) = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5120] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5120] close(3) = 0 [pid 5120] close(4) = 0 [pid 5120] mkdir("./bus", 0777) = 0 [ 109.641776][ T5120] loop0: detected capacity change from 0 to 512 [pid 5120] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5120] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5120] chdir("./bus") = 0 [pid 5120] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5120] mkdir("./bus", 0777) = 0 [pid 5120] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5120] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5120] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5120] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5120] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [ 109.698360][ T5120] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 109.711369][ T5120] ext4 filesystem being mounted at /root/syzkaller.axqtMq/11/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5120] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5120] exit_group(0) = ? [pid 5120] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./11", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./11/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./11/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./11/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./11/bus") = 0 umount2("./11/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./11/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 109.807700][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. unlink("./11/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./11") = 0 mkdir("./12", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5123 attached , child_tidptr=0x55558af1f750) = 5123 [pid 5123] set_robust_list(0x55558af1f760, 24) = 0 [pid 5123] chdir("./12") = 0 [pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5123] setpgid(0, 0) = 0 [pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5123] write(3, "1000", 4) = 4 [pid 5123] close(3) = 0 [pid 5123] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5123] memfd_create("syzkaller", 0) = 3 [pid 5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5123] 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"..., 262144) = 262144 [pid 5123] munmap(0x7f4734e00000, 138412032) = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5123] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5123] close(3) = 0 [pid 5123] close(4) = 0 [pid 5123] mkdir("./bus", 0777) = 0 [ 110.077329][ T5123] loop0: detected capacity change from 0 to 512 [pid 5123] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5123] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5123] chdir("./bus") = 0 [pid 5123] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5123] mkdir("./bus", 0777) = 0 [pid 5123] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5123] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 110.130130][ T5123] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 110.142726][ T5123] ext4 filesystem being mounted at /root/syzkaller.axqtMq/12/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5123] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5123] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5123] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5123] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5123] exit_group(0) = ? [pid 5123] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./12", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./12/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./12/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./12/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./12/bus") = 0 umount2("./12/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./12/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./12/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./12") = 0 mkdir("./13", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 110.263765][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached , child_tidptr=0x55558af1f750) = 5126 [pid 5126] set_robust_list(0x55558af1f760, 24) = 0 [pid 5126] chdir("./13") = 0 [pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5126] setpgid(0, 0) = 0 [pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5126] write(3, "1000", 4) = 4 [pid 5126] close(3) = 0 [pid 5126] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5126] memfd_create("syzkaller", 0) = 3 [pid 5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5126] 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"..., 262144) = 262144 [pid 5126] munmap(0x7f4734e00000, 138412032) = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5126] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5126] close(3) = 0 [pid 5126] close(4) = 0 [pid 5126] mkdir("./bus", 0777) = 0 [ 110.445935][ T5126] loop0: detected capacity change from 0 to 512 [pid 5126] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5126] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5126] chdir("./bus") = 0 [pid 5126] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5126] mkdir("./bus", 0777) = 0 [pid 5126] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5126] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5126] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5126] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [ 110.504405][ T5126] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 110.517820][ T5126] ext4 filesystem being mounted at /root/syzkaller.axqtMq/13/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5126] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5126] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5126] exit_group(0) = ? [pid 5126] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./13", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 110.582229][ T28] kauditd_printk_skb: 16 callbacks suppressed [ 110.582250][ T28] audit: type=1800 audit(1714031304.128:28): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 110.609485][ T28] audit: type=1800 audit(1714031304.148:29): pid=5126 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./13/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./13/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./13/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./13/bus") = 0 umount2("./13/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./13/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./13/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./13") = 0 mkdir("./14", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 110.674304][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached , child_tidptr=0x55558af1f750) = 5129 [pid 5129] set_robust_list(0x55558af1f760, 24) = 0 [pid 5129] chdir("./14") = 0 [pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5129] setpgid(0, 0) = 0 [pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5129] write(3, "1000", 4) = 4 [pid 5129] close(3) = 0 [pid 5129] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5129] memfd_create("syzkaller", 0) = 3 [pid 5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5129] 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"..., 262144) = 262144 [pid 5129] munmap(0x7f4734e00000, 138412032) = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5129] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5129] close(3) = 0 [pid 5129] close(4) = 0 [pid 5129] mkdir("./bus", 0777) = 0 [ 110.865492][ T5129] loop0: detected capacity change from 0 to 512 [pid 5129] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5129] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5129] chdir("./bus") = 0 [pid 5129] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5129] mkdir("./bus", 0777) = 0 [pid 5129] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5129] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 110.912268][ T5129] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 110.925214][ T5129] ext4 filesystem being mounted at /root/syzkaller.axqtMq/14/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5129] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5129] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5129] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5129] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5129] exit_group(0) = ? [pid 5129] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./14", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 110.990919][ T28] audit: type=1800 audit(1714031304.538:30): pid=5129 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 111.013811][ T28] audit: type=1800 audit(1714031304.568:31): pid=5129 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./14/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./14/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./14/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./14/bus") = 0 umount2("./14/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./14/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./14/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./14") = 0 mkdir("./15", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 111.064149][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached , child_tidptr=0x55558af1f750) = 5132 [pid 5132] set_robust_list(0x55558af1f760, 24) = 0 [pid 5132] chdir("./15") = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5132] setpgid(0, 0) = 0 [pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5132] write(3, "1000", 4) = 4 [pid 5132] close(3) = 0 [pid 5132] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5132] 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"..., 262144) = 262144 [pid 5132] munmap(0x7f4734e00000, 138412032) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5132] close(3) = 0 [pid 5132] close(4) = 0 [pid 5132] mkdir("./bus", 0777) = 0 [ 111.241984][ T5132] loop0: detected capacity change from 0 to 512 [pid 5132] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5132] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5132] chdir("./bus") = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 111.298842][ T5132] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 111.311887][ T5132] ext4 filesystem being mounted at /root/syzkaller.axqtMq/15/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5132] mkdir("./bus", 0777) = 0 [pid 5132] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5132] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5132] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5132] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5132] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5132] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5132] exit_group(0) = ? [pid 5132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./15", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 111.378181][ T28] audit: type=1800 audit(1714031304.928:32): pid=5132 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 111.400134][ T28] audit: type=1800 audit(1714031304.928:33): pid=5132 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./15/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./15/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./15/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 [ 111.429290][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. close(4) = 0 rmdir("./15/bus") = 0 umount2("./15/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./15/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./15/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./15") = 0 mkdir("./16", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached , child_tidptr=0x55558af1f750) = 5135 [pid 5135] set_robust_list(0x55558af1f760, 24) = 0 [pid 5135] chdir("./16") = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5135] memfd_create("syzkaller", 0) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5135] 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"..., 262144) = 262144 [pid 5135] munmap(0x7f4734e00000, 138412032) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5135] close(3) = 0 [pid 5135] close(4) = 0 [pid 5135] mkdir("./bus", 0777) = 0 [ 111.643747][ T5135] loop0: detected capacity change from 0 to 512 [pid 5135] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5135] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5135] chdir("./bus") = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5135] mkdir("./bus", 0777) = 0 [pid 5135] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5135] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 111.684602][ T5135] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 111.697371][ T5135] ext4 filesystem being mounted at /root/syzkaller.axqtMq/16/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5135] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5135] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5135] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5135] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5135] exit_group(0) = ? [pid 5135] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./16", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 111.770544][ T28] audit: type=1800 audit(1714031305.318:34): pid=5135 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 111.792627][ T28] audit: type=1800 audit(1714031305.318:35): pid=5135 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./16/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./16/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./16/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./16/bus") = 0 umount2("./16/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./16/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./16/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./16") = 0 mkdir("./17", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 111.860869][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558af1f750) = 5139 ./strace-static-x86_64: Process 5139 attached [pid 5139] set_robust_list(0x55558af1f760, 24) = 0 [pid 5139] chdir("./17") = 0 [pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5139] setpgid(0, 0) = 0 [pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5139] write(3, "1000", 4) = 4 [pid 5139] close(3) = 0 [pid 5139] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5139] memfd_create("syzkaller", 0) = 3 [pid 5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5139] 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"..., 262144) = 262144 [pid 5139] munmap(0x7f4734e00000, 138412032) = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5139] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5139] close(3) = 0 [pid 5139] close(4) = 0 [pid 5139] mkdir("./bus", 0777) = 0 [ 112.037306][ T5139] loop0: detected capacity change from 0 to 512 [pid 5139] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5139] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5139] chdir("./bus") = 0 [pid 5139] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5139] mkdir("./bus", 0777) = 0 [pid 5139] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 112.121509][ T5139] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 112.134233][ T5139] ext4 filesystem being mounted at /root/syzkaller.axqtMq/17/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5139] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5139] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5139] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5139] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5139] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5139] exit_group(0) = ? [pid 5139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- umount2("./17", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 112.201543][ T28] audit: type=1800 audit(1714031305.748:36): pid=5139 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 112.224185][ T28] audit: type=1800 audit(1714031305.748:37): pid=5139 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./17/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./17/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./17/bus") = 0 umount2("./17/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./17/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./17/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./17") = 0 mkdir("./18", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 112.294117][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5143 attached , child_tidptr=0x55558af1f750) = 5143 [pid 5143] set_robust_list(0x55558af1f760, 24) = 0 [pid 5143] chdir("./18") = 0 [pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5143] setpgid(0, 0) = 0 [pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5143] write(3, "1000", 4) = 4 [pid 5143] close(3) = 0 [pid 5143] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5143] memfd_create("syzkaller", 0) = 3 [pid 5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5143] 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"..., 262144) = 262144 [pid 5143] munmap(0x7f4734e00000, 138412032) = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5143] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5143] close(3) = 0 [pid 5143] close(4) = 0 [pid 5143] mkdir("./bus", 0777) = 0 [ 112.498624][ T5143] loop0: detected capacity change from 0 to 512 [pid 5143] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5143] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5143] chdir("./bus") = 0 [pid 5143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5143] mkdir("./bus", 0777) = 0 [pid 5143] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5143] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 112.559529][ T5143] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 112.572204][ T5143] ext4 filesystem being mounted at /root/syzkaller.axqtMq/18/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5143] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5143] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5143] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5143] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5143] exit_group(0) = ? [pid 5143] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./18", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./18/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./18/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 112.712930][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(4, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./18/bus") = 0 umount2("./18/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./18/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./18/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./18") = 0 mkdir("./19", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached , child_tidptr=0x55558af1f750) = 5146 [pid 5146] set_robust_list(0x55558af1f760, 24) = 0 [pid 5146] chdir("./19") = 0 [pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5146] setpgid(0, 0) = 0 [pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5146] write(3, "1000", 4) = 4 [pid 5146] close(3) = 0 [pid 5146] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5146] memfd_create("syzkaller", 0) = 3 [pid 5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5146] 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"..., 262144) = 262144 [pid 5146] munmap(0x7f4734e00000, 138412032) = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5146] close(3) = 0 [pid 5146] close(4) = 0 [pid 5146] mkdir("./bus", 0777) = 0 [ 112.953828][ T5146] loop0: detected capacity change from 0 to 512 [pid 5146] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5146] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5146] chdir("./bus") = 0 [pid 5146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5146] mkdir("./bus", 0777) = 0 [pid 5146] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5146] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5146] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5146] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5146] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5146] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [ 113.008869][ T5146] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 113.021519][ T5146] ext4 filesystem being mounted at /root/syzkaller.axqtMq/19/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5146] exit_group(0) = ? [pid 5146] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./19", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./19/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./19/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./19/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./19/bus") = 0 umount2("./19/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./19/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./19/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./19") = 0 mkdir("./20", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 113.107731][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5149 attached , child_tidptr=0x55558af1f750) = 5149 [pid 5149] set_robust_list(0x55558af1f760, 24) = 0 [pid 5149] chdir("./20") = 0 [pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5149] setpgid(0, 0) = 0 [pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5149] write(3, "1000", 4) = 4 [pid 5149] close(3) = 0 [pid 5149] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5149] memfd_create("syzkaller", 0) = 3 [pid 5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5149] 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"..., 262144) = 262144 [pid 5149] munmap(0x7f4734e00000, 138412032) = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5149] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5149] close(3) = 0 [pid 5149] close(4) = 0 [pid 5149] mkdir("./bus", 0777) = 0 [ 113.293088][ T5149] loop0: detected capacity change from 0 to 512 [pid 5149] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5149] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5149] chdir("./bus") = 0 [pid 5149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5149] mkdir("./bus", 0777) = 0 [pid 5149] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 113.348988][ T5149] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 113.362324][ T5149] ext4 filesystem being mounted at /root/syzkaller.axqtMq/20/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5149] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5149] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5149] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5149] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5149] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5149] exit_group(0) = ? [pid 5149] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./20", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./20/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./20/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./20/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./20/bus") = 0 umount2("./20/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./20/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./20/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./20") = 0 mkdir("./21", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 113.490809][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5152 attached , child_tidptr=0x55558af1f750) = 5152 [pid 5152] set_robust_list(0x55558af1f760, 24) = 0 [pid 5152] chdir("./21") = 0 [pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5152] setpgid(0, 0) = 0 [pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5152] write(3, "1000", 4) = 4 [pid 5152] close(3) = 0 [pid 5152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5152] memfd_create("syzkaller", 0) = 3 [pid 5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5152] 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"..., 262144) = 262144 [pid 5152] munmap(0x7f4734e00000, 138412032) = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5152] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5152] close(3) = 0 [pid 5152] close(4) = 0 [pid 5152] mkdir("./bus", 0777) = 0 [ 113.720014][ T5152] loop0: detected capacity change from 0 to 512 [pid 5152] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5152] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5152] chdir("./bus") = 0 [pid 5152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5152] mkdir("./bus", 0777) = 0 [pid 5152] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5152] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 113.770799][ T5152] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 113.783431][ T5152] ext4 filesystem being mounted at /root/syzkaller.axqtMq/21/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5152] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5152] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5152] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5152] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5152] exit_group(0) = ? [pid 5152] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./21", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./21/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./21/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./21/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./21/bus") = 0 umount2("./21/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./21/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./21/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 [ 113.889231][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. close(3) = 0 rmdir("./21") = 0 mkdir("./22", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5155 attached , child_tidptr=0x55558af1f750) = 5155 [pid 5155] set_robust_list(0x55558af1f760, 24) = 0 [pid 5155] chdir("./22") = 0 [pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5155] setpgid(0, 0) = 0 [pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5155] write(3, "1000", 4) = 4 [pid 5155] close(3) = 0 [pid 5155] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5155] memfd_create("syzkaller", 0) = 3 [pid 5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5155] 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"..., 262144) = 262144 [pid 5155] munmap(0x7f4734e00000, 138412032) = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5155] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5155] close(3) = 0 [pid 5155] close(4) = 0 [pid 5155] mkdir("./bus", 0777) = 0 [ 114.135918][ T5155] loop0: detected capacity change from 0 to 512 [pid 5155] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5155] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5155] chdir("./bus") = 0 [pid 5155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5155] mkdir("./bus", 0777) = 0 [pid 5155] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5155] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5155] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5155] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5155] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5155] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [ 114.198999][ T5155] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 114.212083][ T5155] ext4 filesystem being mounted at /root/syzkaller.axqtMq/22/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5155] exit_group(0) = ? [pid 5155] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./22", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./22/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./22/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./22/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./22/bus") = 0 umount2("./22/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./22/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./22/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./22") = 0 mkdir("./23", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 114.306531][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5158 attached , child_tidptr=0x55558af1f750) = 5158 [pid 5158] set_robust_list(0x55558af1f760, 24) = 0 [pid 5158] chdir("./23") = 0 [pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5158] setpgid(0, 0) = 0 [pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5158] write(3, "1000", 4) = 4 [pid 5158] close(3) = 0 [pid 5158] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5158] memfd_create("syzkaller", 0) = 3 [pid 5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5158] 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"..., 262144) = 262144 [pid 5158] munmap(0x7f4734e00000, 138412032) = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5158] close(3) = 0 [pid 5158] close(4) = 0 [pid 5158] mkdir("./bus", 0777) = 0 [ 114.504255][ T5158] loop0: detected capacity change from 0 to 512 [pid 5158] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5158] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5158] chdir("./bus") = 0 [pid 5158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5158] mkdir("./bus", 0777) = 0 [pid 5158] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5158] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5158] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5158] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5158] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5158] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5158] exit_group(0) = ? [pid 5158] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./23", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 114.559227][ T5158] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 114.573888][ T5158] ext4 filesystem being mounted at /root/syzkaller.axqtMq/23/bus supports timestamps until 2038-01-19 (0x7fffffff) openat(AT_FDCWD, "./23", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./23/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./23/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./23/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./23/bus") = 0 umount2("./23/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./23/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./23/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 [ 114.679895][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. rmdir("./23") = 0 mkdir("./24", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5161 attached , child_tidptr=0x55558af1f750) = 5161 [pid 5161] set_robust_list(0x55558af1f760, 24) = 0 [pid 5161] chdir("./24") = 0 [pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5161] setpgid(0, 0) = 0 [pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5161] write(3, "1000", 4) = 4 [pid 5161] close(3) = 0 [pid 5161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5161] memfd_create("syzkaller", 0) = 3 [pid 5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5161] 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"..., 262144) = 262144 [pid 5161] munmap(0x7f4734e00000, 138412032) = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5161] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5161] close(3) = 0 [pid 5161] close(4) = 0 [pid 5161] mkdir("./bus", 0777) = 0 [ 114.917582][ T5161] loop0: detected capacity change from 0 to 512 [pid 5161] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5161] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5161] chdir("./bus") = 0 [pid 5161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 114.961017][ T5161] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 114.973808][ T5161] ext4 filesystem being mounted at /root/syzkaller.axqtMq/24/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5161] mkdir("./bus", 0777) = 0 [pid 5161] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5161] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5161] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5161] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5161] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5161] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5161] exit_group(0) = ? [pid 5161] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./24", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [ 115.146955][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./24/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./24/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./24/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./24/bus") = 0 umount2("./24/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./24/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./24/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./24") = 0 mkdir("./25", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5164 attached , child_tidptr=0x55558af1f750) = 5164 [pid 5164] set_robust_list(0x55558af1f760, 24) = 0 [pid 5164] chdir("./25") = 0 [pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5164] setpgid(0, 0) = 0 [pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5164] write(3, "1000", 4) = 4 [pid 5164] close(3) = 0 [pid 5164] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5164] memfd_create("syzkaller", 0) = 3 [pid 5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5164] 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"..., 262144) = 262144 [pid 5164] munmap(0x7f4734e00000, 138412032) = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5164] close(3) = 0 [pid 5164] close(4) = 0 [pid 5164] mkdir("./bus", 0777) = 0 [ 115.434929][ T5164] loop0: detected capacity change from 0 to 512 [pid 5164] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5164] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5164] chdir("./bus") = 0 [pid 5164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 115.489298][ T5164] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 115.502307][ T5164] ext4 filesystem being mounted at /root/syzkaller.axqtMq/25/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5164] mkdir("./bus", 0777) = 0 [pid 5164] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5164] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5164] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5164] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5164] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5164] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5164] exit_group(0) = ? [pid 5164] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./25", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./25/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./25/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./25/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./25/bus") = 0 umount2("./25/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./25/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./25/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./25") = 0 mkdir("./26", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 115.603817][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached , child_tidptr=0x55558af1f750) = 5167 [pid 5167] set_robust_list(0x55558af1f760, 24) = 0 [pid 5167] chdir("./26") = 0 [pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5167] setpgid(0, 0) = 0 [pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5167] write(3, "1000", 4) = 4 [pid 5167] close(3) = 0 [pid 5167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5167] memfd_create("syzkaller", 0) = 3 [pid 5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5167] 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"..., 262144) = 262144 [pid 5167] munmap(0x7f4734e00000, 138412032) = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5167] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5167] close(3) = 0 [pid 5167] close(4) = 0 [pid 5167] mkdir("./bus", 0777) = 0 [ 115.815871][ T5167] loop0: detected capacity change from 0 to 512 [pid 5167] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5167] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5167] chdir("./bus") = 0 [pid 5167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 115.859673][ T5167] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 115.872982][ T5167] ext4 filesystem being mounted at /root/syzkaller.axqtMq/26/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5167] mkdir("./bus", 0777) = 0 [pid 5167] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5167] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5167] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5167] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5167] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5167] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5167] exit_group(0) = ? [pid 5167] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./26", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 115.945232][ T28] kauditd_printk_skb: 16 callbacks suppressed [ 115.945256][ T28] audit: type=1800 audit(1714031309.498:54): pid=5167 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 115.974627][ T28] audit: type=1800 audit(1714031309.528:55): pid=5167 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./26/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./26/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./26/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./26/bus") = 0 umount2("./26/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./26/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./26/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 [ 116.041197][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. close(3) = 0 rmdir("./26") = 0 mkdir("./27", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558af1f750) = 5170 ./strace-static-x86_64: Process 5170 attached [pid 5170] set_robust_list(0x55558af1f760, 24) = 0 [pid 5170] chdir("./27") = 0 [pid 5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5170] setpgid(0, 0) = 0 [pid 5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5170] write(3, "1000", 4) = 4 [pid 5170] close(3) = 0 [pid 5170] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5170] memfd_create("syzkaller", 0) = 3 [pid 5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5170] 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"..., 262144) = 262144 [pid 5170] munmap(0x7f4734e00000, 138412032) = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5170] close(3) = 0 [pid 5170] close(4) = 0 [pid 5170] mkdir("./bus", 0777) = 0 [ 116.276278][ T5170] loop0: detected capacity change from 0 to 512 [pid 5170] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5170] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5170] chdir("./bus") = 0 [pid 5170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5170] mkdir("./bus", 0777) = 0 [pid 5170] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 116.328639][ T5170] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 116.341492][ T5170] ext4 filesystem being mounted at /root/syzkaller.axqtMq/27/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5170] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5170] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5170] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5170] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5170] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5170] exit_group(0) = ? [pid 5170] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./27", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 116.406108][ T28] audit: type=1800 audit(1714031309.958:56): pid=5170 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 116.429413][ T28] audit: type=1800 audit(1714031309.978:57): pid=5170 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./27/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./27/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./27/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./27/bus") = 0 umount2("./27/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./27/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 116.499668][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. unlink("./27/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./27") = 0 mkdir("./28", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5173 attached , child_tidptr=0x55558af1f750) = 5173 [pid 5173] set_robust_list(0x55558af1f760, 24) = 0 [pid 5173] chdir("./28") = 0 [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setpgid(0, 0) = 0 [pid 5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1000", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5173] memfd_create("syzkaller", 0) = 3 [pid 5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5173] 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"..., 262144) = 262144 [pid 5173] munmap(0x7f4734e00000, 138412032) = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5173] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5173] close(3) = 0 [pid 5173] close(4) = 0 [pid 5173] mkdir("./bus", 0777) = 0 [ 116.750028][ T5173] loop0: detected capacity change from 0 to 512 [pid 5173] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5173] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5173] chdir("./bus") = 0 [pid 5173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5173] mkdir("./bus", 0777) = 0 [pid 5173] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5173] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 116.809968][ T5173] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 116.822958][ T5173] ext4 filesystem being mounted at /root/syzkaller.axqtMq/28/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5173] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5173] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5173] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5173] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5173] exit_group(0) = ? [pid 5173] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./28", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 116.886735][ T28] audit: type=1800 audit(1714031310.438:58): pid=5173 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 116.909306][ T28] audit: type=1800 audit(1714031310.468:59): pid=5173 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./28/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./28/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./28/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./28/bus") = 0 umount2("./28/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./28/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./28/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./28") = 0 mkdir("./29", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 116.940667][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5177 attached , child_tidptr=0x55558af1f750) = 5177 [pid 5177] set_robust_list(0x55558af1f760, 24) = 0 [pid 5177] chdir("./29") = 0 [pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5177] setpgid(0, 0) = 0 [pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5177] write(3, "1000", 4) = 4 [pid 5177] close(3) = 0 [pid 5177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5177] memfd_create("syzkaller", 0) = 3 [pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5177] 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"..., 262144) = 262144 [pid 5177] munmap(0x7f4734e00000, 138412032) = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5177] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5177] close(3) = 0 [pid 5177] close(4) = 0 [pid 5177] mkdir("./bus", 0777) = 0 [ 117.160529][ T5177] loop0: detected capacity change from 0 to 512 [pid 5177] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5177] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5177] chdir("./bus") = 0 [pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5177] mkdir("./bus", 0777) = 0 [pid 5177] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5177] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 117.201123][ T5177] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 117.214022][ T5177] ext4 filesystem being mounted at /root/syzkaller.axqtMq/29/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5177] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5177] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5177] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5177] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5177] exit_group(0) = ? [pid 5177] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- umount2("./29", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 117.274621][ T28] audit: type=1800 audit(1714031310.828:60): pid=5177 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 117.296225][ T28] audit: type=1800 audit(1714031310.828:61): pid=5177 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./29/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./29/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./29/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./29/bus") = 0 umount2("./29/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./29/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./29/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./29") = 0 mkdir("./30", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 117.356688][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5180 attached , child_tidptr=0x55558af1f750) = 5180 [pid 5180] set_robust_list(0x55558af1f760, 24) = 0 [pid 5180] chdir("./30") = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3) = 0 [pid 5180] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5180] memfd_create("syzkaller", 0) = 3 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5180] 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"..., 262144) = 262144 [pid 5180] munmap(0x7f4734e00000, 138412032) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5180] close(3) = 0 [pid 5180] close(4) = 0 [pid 5180] mkdir("./bus", 0777) = 0 [ 117.523699][ T5180] loop0: detected capacity change from 0 to 512 [pid 5180] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5180] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5180] chdir("./bus") = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5180] mkdir("./bus", 0777) = 0 [pid 5180] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5180] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 117.564179][ T5180] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 117.577271][ T5180] ext4 filesystem being mounted at /root/syzkaller.axqtMq/30/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5180] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5180] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5180] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5180] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5180] exit_group(0) = ? [pid 5180] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- umount2("./30", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 117.629137][ T28] audit: type=1800 audit(1714031311.178:62): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 117.650605][ T28] audit: type=1800 audit(1714031311.178:63): pid=5180 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./30/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./30/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./30/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./30/bus") = 0 umount2("./30/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./30/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./30/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./30") = 0 mkdir("./31", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 117.720103][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5183 attached , child_tidptr=0x55558af1f750) = 5183 [pid 5183] set_robust_list(0x55558af1f760, 24) = 0 [pid 5183] chdir("./31") = 0 [pid 5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5183] setpgid(0, 0) = 0 [pid 5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5183] write(3, "1000", 4) = 4 [pid 5183] close(3) = 0 [pid 5183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5183] memfd_create("syzkaller", 0) = 3 [pid 5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5183] 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"..., 262144) = 262144 [pid 5183] munmap(0x7f4734e00000, 138412032) = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5183] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5183] close(3) = 0 [pid 5183] close(4) = 0 [pid 5183] mkdir("./bus", 0777) = 0 [ 117.922643][ T5183] loop0: detected capacity change from 0 to 512 [pid 5183] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5183] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5183] chdir("./bus") = 0 [pid 5183] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 117.970868][ T5183] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 117.983721][ T5183] ext4 filesystem being mounted at /root/syzkaller.axqtMq/31/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5183] mkdir("./bus", 0777) = 0 [pid 5183] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5183] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5183] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5183] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5183] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5183] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5183] exit_group(0) = ? [pid 5183] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./31", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./31", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./31/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./31/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 118.117918][ T5083] EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000. openat(AT_FDCWD, "./31/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./31/bus") = 0 umount2("./31/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./31/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./31/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./31") = 0 mkdir("./32", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5186 attached , child_tidptr=0x55558af1f750) = 5186 [pid 5186] set_robust_list(0x55558af1f760, 24) = 0 [pid 5186] chdir("./32") = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] write(3, "1000", 4) = 4 [pid 5186] close(3) = 0 [pid 5186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5186] memfd_create("syzkaller", 0) = 3 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5186] 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"..., 262144) = 262144 [pid 5186] munmap(0x7f4734e00000, 138412032) = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5186] close(3) = 0 [pid 5186] close(4) = 0 [pid 5186] mkdir("./bus", 0777) = 0 [ 118.406218][ T5186] loop0: detected capacity change from 0 to 512 [pid 5186] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5186] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5186] chdir("./bus") = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5186] mkdir("./bus", 0777) = 0 [pid 5186] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5186] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5186] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5186] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [ 118.470139][ T5186] ext4 filesystem being mounted at /root/syzkaller.axqtMq/32/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5186] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5186] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5186] exit_group(0) = ? [pid 5186] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./32", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./32/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./32/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./32/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./32/bus") = 0 umount2("./32/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./32/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./32/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./32") = 0 mkdir("./33", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached , child_tidptr=0x55558af1f750) = 5190 [pid 5190] set_robust_list(0x55558af1f760, 24) = 0 [pid 5190] chdir("./33") = 0 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5190] setpgid(0, 0) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5190] write(3, "1000", 4) = 4 [pid 5190] close(3) = 0 [pid 5190] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5190] memfd_create("syzkaller", 0) = 3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5190] 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"..., 262144) = 262144 [pid 5190] munmap(0x7f4734e00000, 138412032) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5190] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5190] close(3) = 0 [pid 5190] close(4) = 0 [pid 5190] mkdir("./bus", 0777) = 0 [ 118.767877][ T5190] loop0: detected capacity change from 0 to 512 [pid 5190] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5190] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5190] chdir("./bus") = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5190] mkdir("./bus", 0777) = 0 [pid 5190] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5190] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5190] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 118.811659][ T5190] ext4 filesystem being mounted at /root/syzkaller.axqtMq/33/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5190] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5190] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5190] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5190] exit_group(0) = ? [pid 5190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./33", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./33/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./33/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./33/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./33/bus") = 0 umount2("./33/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./33/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./33/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./33") = 0 mkdir("./34", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5193 attached , child_tidptr=0x55558af1f750) = 5193 [pid 5193] set_robust_list(0x55558af1f760, 24) = 0 [pid 5193] chdir("./34") = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5193] memfd_create("syzkaller", 0) = 3 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5193] 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"..., 262144) = 262144 [pid 5193] munmap(0x7f4734e00000, 138412032) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5193] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5193] close(3) = 0 [pid 5193] close(4) = 0 [pid 5193] mkdir("./bus", 0777) = 0 [ 119.141339][ T5193] loop0: detected capacity change from 0 to 512 [pid 5193] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5193] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5193] chdir("./bus") = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5193] mkdir("./bus", 0777) = 0 [pid 5193] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5193] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 119.184677][ T5193] ext4 filesystem being mounted at /root/syzkaller.axqtMq/34/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5193] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5193] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5193] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5193] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5193] exit_group(0) = ? [pid 5193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./34", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./34/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./34/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./34/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./34/bus") = 0 umount2("./34/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./34/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./34/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./34") = 0 mkdir("./35", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5196 attached , child_tidptr=0x55558af1f750) = 5196 [pid 5196] set_robust_list(0x55558af1f760, 24) = 0 [pid 5196] chdir("./35") = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5196] setpgid(0, 0) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5196] write(3, "1000", 4) = 4 [pid 5196] close(3) = 0 [pid 5196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5196] memfd_create("syzkaller", 0) = 3 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5196] 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"..., 262144) = 262144 [pid 5196] munmap(0x7f4734e00000, 138412032) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5196] close(3) = 0 [pid 5196] close(4) = 0 [pid 5196] mkdir("./bus", 0777) = 0 [ 119.483710][ T5196] loop0: detected capacity change from 0 to 512 [pid 5196] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5196] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5196] chdir("./bus") = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5196] mkdir("./bus", 0777) = 0 [pid 5196] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5196] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 119.559332][ T5196] ext4 filesystem being mounted at /root/syzkaller.axqtMq/35/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5196] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5196] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5196] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5196] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5196] exit_group(0) = ? [pid 5196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./35", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./35/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./35/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./35/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./35/bus") = 0 umount2("./35/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./35/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./35/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./35") = 0 mkdir("./36", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached , child_tidptr=0x55558af1f750) = 5199 [pid 5199] set_robust_list(0x55558af1f760, 24) = 0 [pid 5199] chdir("./36") = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5199] memfd_create("syzkaller", 0) = 3 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5199] 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"..., 262144) = 262144 [pid 5199] munmap(0x7f4734e00000, 138412032) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5199] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5199] close(3) = 0 [pid 5199] close(4) = 0 [pid 5199] mkdir("./bus", 0777) = 0 [ 119.851298][ T5199] loop0: detected capacity change from 0 to 512 [pid 5199] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5199] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5199] chdir("./bus") = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5199] mkdir("./bus", 0777) = 0 [pid 5199] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5199] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 119.889950][ T5199] ext4 filesystem being mounted at /root/syzkaller.axqtMq/36/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5199] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5199] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5199] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5199] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5199] exit_group(0) = ? [pid 5199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./36", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./36/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./36/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./36/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./36/bus") = 0 umount2("./36/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./36/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./36/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./36") = 0 mkdir("./37", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558af1f750) = 5202 ./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x55558af1f760, 24) = 0 [pid 5202] chdir("./37") = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5202] setpgid(0, 0) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5202] write(3, "1000", 4) = 4 [pid 5202] close(3) = 0 [pid 5202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5202] 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"..., 262144) = 262144 [pid 5202] munmap(0x7f4734e00000, 138412032) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5202] close(3) = 0 [pid 5202] close(4) = 0 [pid 5202] mkdir("./bus", 0777) = 0 [ 120.196005][ T5202] loop0: detected capacity change from 0 to 512 [pid 5202] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5202] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5202] chdir("./bus") = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5202] mkdir("./bus", 0777) = 0 [pid 5202] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5202] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 120.268837][ T5202] ext4 filesystem being mounted at /root/syzkaller.axqtMq/37/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5202] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5202] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5202] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5202] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5202] exit_group(0) = ? [pid 5202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./37", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./37/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./37/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./37/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./37/bus") = 0 umount2("./37/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./37/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./37/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./37") = 0 mkdir("./38", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached , child_tidptr=0x55558af1f750) = 5205 [pid 5205] set_robust_list(0x55558af1f760, 24) = 0 [pid 5205] chdir("./38") = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5205] setpgid(0, 0) = 0 [pid 5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5205] write(3, "1000", 4) = 4 [pid 5205] close(3) = 0 [pid 5205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5205] memfd_create("syzkaller", 0) = 3 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5205] 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"..., 262144) = 262144 [pid 5205] munmap(0x7f4734e00000, 138412032) = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5205] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5205] close(3) = 0 [pid 5205] close(4) = 0 [pid 5205] mkdir("./bus", 0777) = 0 [pid 5205] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5205] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5205] chdir("./bus") = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5205] mkdir("./bus", 0777) = 0 [pid 5205] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 120.671103][ T5205] loop0: detected capacity change from 0 to 512 [ 120.701401][ T5205] ext4 filesystem being mounted at /root/syzkaller.axqtMq/38/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5205] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5205] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5205] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5205] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5205] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5205] exit_group(0) = ? [pid 5205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./38", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./38/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./38/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./38/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./38/bus") = 0 umount2("./38/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./38/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./38/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./38") = 0 mkdir("./39", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5208 attached , child_tidptr=0x55558af1f750) = 5208 [pid 5208] set_robust_list(0x55558af1f760, 24) = 0 [pid 5208] chdir("./39") = 0 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5208] setpgid(0, 0) = 0 [pid 5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5208] write(3, "1000", 4) = 4 [pid 5208] close(3) = 0 [pid 5208] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5208] memfd_create("syzkaller", 0) = 3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5208] 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"..., 262144) = 262144 [pid 5208] munmap(0x7f4734e00000, 138412032) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5208] close(3) = 0 [pid 5208] close(4) = 0 [pid 5208] mkdir("./bus", 0777) = 0 [ 121.011349][ T5208] loop0: detected capacity change from 0 to 512 [pid 5208] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5208] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5208] chdir("./bus") = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5208] mkdir("./bus", 0777) = 0 [pid 5208] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5208] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 121.050611][ T5208] ext4 filesystem being mounted at /root/syzkaller.axqtMq/39/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5208] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5208] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5208] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5208] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5208] exit_group(0) = ? [pid 5208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./39", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 121.113546][ T28] kauditd_printk_skb: 16 callbacks suppressed [ 121.113571][ T28] audit: type=1800 audit(1714031314.668:80): pid=5208 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 121.141263][ T28] audit: type=1800 audit(1714031314.668:81): pid=5208 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./39/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./39/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./39/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./39/bus") = 0 umount2("./39/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./39/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./39/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./39") = 0 mkdir("./40", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5211 attached , child_tidptr=0x55558af1f750) = 5211 [pid 5211] set_robust_list(0x55558af1f760, 24) = 0 [pid 5211] chdir("./40") = 0 [pid 5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5211] setpgid(0, 0) = 0 [pid 5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5211] write(3, "1000", 4) = 4 [pid 5211] close(3) = 0 [pid 5211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5211] memfd_create("syzkaller", 0) = 3 [pid 5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5211] 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"..., 262144) = 262144 [pid 5211] munmap(0x7f4734e00000, 138412032) = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5211] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5211] close(3) = 0 [pid 5211] close(4) = 0 [pid 5211] mkdir("./bus", 0777) = 0 [ 121.393204][ T5211] loop0: detected capacity change from 0 to 512 [pid 5211] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5211] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5211] chdir("./bus") = 0 [pid 5211] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5211] mkdir("./bus", 0777) = 0 [pid 5211] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5211] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 121.439866][ T5211] ext4 filesystem being mounted at /root/syzkaller.axqtMq/40/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5211] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5211] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5211] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5211] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5211] exit_group(0) = ? [pid 5211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./40", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./40", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./40/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./40/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 121.506918][ T28] audit: type=1800 audit(1714031315.058:82): pid=5211 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 121.527839][ T28] audit: type=1800 audit(1714031315.058:83): pid=5211 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 openat(AT_FDCWD, "./40/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./40/bus") = 0 umount2("./40/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./40/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./40/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./40") = 0 mkdir("./41", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5214 attached , child_tidptr=0x55558af1f750) = 5214 [pid 5214] set_robust_list(0x55558af1f760, 24) = 0 [pid 5214] chdir("./41") = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5214] setpgid(0, 0) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5214] write(3, "1000", 4) = 4 [pid 5214] close(3) = 0 [pid 5214] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5214] memfd_create("syzkaller", 0) = 3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5214] 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"..., 262144) = 262144 [pid 5214] munmap(0x7f4734e00000, 138412032) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5214] close(3) = 0 [pid 5214] close(4) = 0 [pid 5214] mkdir("./bus", 0777) = 0 [ 121.802999][ T5214] loop0: detected capacity change from 0 to 512 [pid 5214] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5214] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5214] chdir("./bus") = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5214] mkdir("./bus", 0777) = 0 [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5214] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5214] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 121.849794][ T5214] ext4 filesystem being mounted at /root/syzkaller.axqtMq/41/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5214] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5214] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5214] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5214] exit_group(0) = ? [pid 5214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./41", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./41/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./41/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./41/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 121.899285][ T28] audit: type=1800 audit(1714031315.448:84): pid=5214 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 121.920258][ T28] audit: type=1800 audit(1714031315.448:85): pid=5214 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(4, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./41/bus") = 0 umount2("./41/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./41/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./41/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./41") = 0 mkdir("./42", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558af1f750) = 5217 ./strace-static-x86_64: Process 5217 attached [pid 5217] set_robust_list(0x55558af1f760, 24) = 0 [pid 5217] chdir("./42") = 0 [pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5217] setpgid(0, 0) = 0 [pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5217] write(3, "1000", 4) = 4 [pid 5217] close(3) = 0 [pid 5217] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5217] memfd_create("syzkaller", 0) = 3 [pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5217] 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"..., 262144) = 262144 [pid 5217] munmap(0x7f4734e00000, 138412032) = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5217] close(3) = 0 [pid 5217] close(4) = 0 [pid 5217] mkdir("./bus", 0777) = 0 [ 122.123043][ T5217] loop0: detected capacity change from 0 to 512 [pid 5217] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5217] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5217] chdir("./bus") = 0 [pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5217] mkdir("./bus", 0777) = 0 [pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5217] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 122.179193][ T5217] ext4 filesystem being mounted at /root/syzkaller.axqtMq/42/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5217] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5217] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5217] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5217] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5217] exit_group(0) = ? [pid 5217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./42", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 122.243527][ T28] audit: type=1800 audit(1714031315.798:86): pid=5217 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 122.266721][ T28] audit: type=1800 audit(1714031315.828:87): pid=5217 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./42/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./42/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./42/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./42/bus") = 0 umount2("./42/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./42/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./42/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./42") = 0 mkdir("./43", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558af1f750) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x55558af1f760, 24) = 0 [pid 5221] chdir("./43") = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5221] memfd_create("syzkaller", 0) = 3 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5221] 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"..., 262144) = 262144 [pid 5221] munmap(0x7f4734e00000, 138412032) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5221] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5221] close(3) = 0 [pid 5221] close(4) = 0 [pid 5221] mkdir("./bus", 0777) = 0 [ 122.515309][ T5221] loop0: detected capacity change from 0 to 512 [pid 5221] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5221] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5221] chdir("./bus") = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5221] mkdir("./bus", 0777) = 0 [pid 5221] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5221] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5221] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5221] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [ 122.562227][ T5221] ext4 filesystem being mounted at /root/syzkaller.axqtMq/43/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5221] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5221] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./43", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 122.603075][ T28] audit: type=1800 audit(1714031316.148:88): pid=5221 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 122.624080][ T28] audit: type=1800 audit(1714031316.158:89): pid=5221 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./43/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./43/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./43/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./43/bus") = 0 umount2("./43/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./43/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./43/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./43") = 0 mkdir("./44", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5224 attached , child_tidptr=0x55558af1f750) = 5224 [pid 5224] set_robust_list(0x55558af1f760, 24) = 0 [pid 5224] chdir("./44") = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4) = 4 [pid 5224] close(3) = 0 [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5224] memfd_create("syzkaller", 0) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5224] 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"..., 262144) = 262144 [pid 5224] munmap(0x7f4734e00000, 138412032) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5224] close(3) = 0 [pid 5224] close(4) = 0 [pid 5224] mkdir("./bus", 0777) = 0 [ 122.914411][ T5224] loop0: detected capacity change from 0 to 512 [pid 5224] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5224] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5224] chdir("./bus") = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5224] mkdir("./bus", 0777) = 0 [pid 5224] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5224] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5224] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5224] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5224] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [ 122.962159][ T5224] ext4 filesystem being mounted at /root/syzkaller.axqtMq/44/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5224] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5224] exit_group(0) = ? [pid 5224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./44", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./44/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./44/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./44/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./44/bus") = 0 umount2("./44/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./44/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./44/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./44") = 0 mkdir("./45", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5228 attached , child_tidptr=0x55558af1f750) = 5228 [pid 5228] set_robust_list(0x55558af1f760, 24) = 0 [pid 5228] chdir("./45") = 0 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5228] setpgid(0, 0) = 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5228] write(3, "1000", 4) = 4 [pid 5228] close(3) = 0 [pid 5228] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5228] 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"..., 262144) = 262144 [pid 5228] munmap(0x7f4734e00000, 138412032) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5228] close(3) = 0 [pid 5228] close(4) = 0 [pid 5228] mkdir("./bus", 0777) = 0 [ 123.305443][ T5228] loop0: detected capacity change from 0 to 512 [pid 5228] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5228] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5228] chdir("./bus") = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5228] mkdir("./bus", 0777) = 0 [pid 5228] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5228] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 123.369070][ T5228] ext4 filesystem being mounted at /root/syzkaller.axqtMq/45/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5228] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5228] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5228] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5228] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5228] exit_group(0) = ? [pid 5228] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5228, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./45", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./45/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./45/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./45/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./45/bus") = 0 umount2("./45/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./45/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./45/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./45") = 0 mkdir("./46", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached , child_tidptr=0x55558af1f750) = 5231 [pid 5231] set_robust_list(0x55558af1f760, 24) = 0 [pid 5231] chdir("./46") = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] write(3, "1000", 4) = 4 [pid 5231] close(3) = 0 [pid 5231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5231] 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"..., 262144) = 262144 [pid 5231] munmap(0x7f4734e00000, 138412032) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5231] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5231] close(3) = 0 [pid 5231] close(4) = 0 [pid 5231] mkdir("./bus", 0777) = 0 [ 123.654217][ T5231] loop0: detected capacity change from 0 to 512 [pid 5231] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5231] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5231] chdir("./bus") = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5231] mkdir("./bus", 0777) = 0 [pid 5231] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5231] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 123.700222][ T5231] ext4 filesystem being mounted at /root/syzkaller.axqtMq/46/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5231] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5231] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5231] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5231] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5231] exit_group(0) = ? [pid 5231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./46", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./46/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./46/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./46/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./46/bus") = 0 umount2("./46/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./46/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./46/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./46") = 0 mkdir("./47", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5234 attached , child_tidptr=0x55558af1f750) = 5234 [pid 5234] set_robust_list(0x55558af1f760, 24) = 0 [pid 5234] chdir("./47") = 0 [pid 5234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5234] setpgid(0, 0) = 0 [pid 5234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5234] write(3, "1000", 4) = 4 [pid 5234] close(3) = 0 [pid 5234] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5234] memfd_create("syzkaller", 0) = 3 [pid 5234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5234] 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"..., 262144) = 262144 [pid 5234] munmap(0x7f4734e00000, 138412032) = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5234] close(3) = 0 [pid 5234] close(4) = 0 [pid 5234] mkdir("./bus", 0777) = 0 [pid 5234] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5234] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5234] chdir("./bus") = 0 [pid 5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5234] mkdir("./bus", 0777) = 0 [pid 5234] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5234] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 124.070658][ T5234] loop0: detected capacity change from 0 to 512 [ 124.107522][ T5234] ext4 filesystem being mounted at /root/syzkaller.axqtMq/47/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5234] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5234] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5234] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5234] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5234] exit_group(0) = ? [pid 5234] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5234, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./47", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./47/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./47/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./47/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./47/bus") = 0 umount2("./47/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./47/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./47/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./47") = 0 mkdir("./48", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5237 attached , child_tidptr=0x55558af1f750) = 5237 [pid 5237] set_robust_list(0x55558af1f760, 24) = 0 [pid 5237] chdir("./48") = 0 [pid 5237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5237] setpgid(0, 0) = 0 [pid 5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5237] write(3, "1000", 4) = 4 [pid 5237] close(3) = 0 [pid 5237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5237] memfd_create("syzkaller", 0) = 3 [pid 5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5237] 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"..., 262144) = 262144 [pid 5237] munmap(0x7f4734e00000, 138412032) = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5237] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5237] close(3) = 0 [pid 5237] close(4) = 0 [pid 5237] mkdir("./bus", 0777) = 0 [ 124.438934][ T5237] loop0: detected capacity change from 0 to 512 [pid 5237] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5237] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5237] chdir("./bus") = 0 [pid 5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5237] mkdir("./bus", 0777) = 0 [pid 5237] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5237] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5237] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 124.499221][ T5237] ext4 filesystem being mounted at /root/syzkaller.axqtMq/48/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5237] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5237] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5237] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5237] exit_group(0) = ? [pid 5237] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5237, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./48", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./48/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./48/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./48/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./48/bus") = 0 umount2("./48/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./48/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./48/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./48") = 0 mkdir("./49", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5240 attached , child_tidptr=0x55558af1f750) = 5240 [pid 5240] set_robust_list(0x55558af1f760, 24) = 0 [pid 5240] chdir("./49") = 0 [pid 5240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5240] setpgid(0, 0) = 0 [pid 5240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5240] write(3, "1000", 4) = 4 [pid 5240] close(3) = 0 [pid 5240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5240] memfd_create("syzkaller", 0) = 3 [pid 5240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5240] 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"..., 262144) = 262144 [pid 5240] munmap(0x7f4734e00000, 138412032) = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5240] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5240] close(3) = 0 [pid 5240] close(4) = 0 [pid 5240] mkdir("./bus", 0777) = 0 [ 124.829414][ T5240] loop0: detected capacity change from 0 to 512 [pid 5240] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5240] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5240] chdir("./bus") = 0 [pid 5240] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5240] mkdir("./bus", 0777) = 0 [pid 5240] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5240] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5240] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 124.879697][ T5240] ext4 filesystem being mounted at /root/syzkaller.axqtMq/49/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5240] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5240] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5240] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5240] exit_group(0) = ? [pid 5240] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5240, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./49", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./49/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./49/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./49/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./49/bus") = 0 umount2("./49/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./49/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./49/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./49") = 0 mkdir("./50", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5243 attached , child_tidptr=0x55558af1f750) = 5243 [pid 5243] set_robust_list(0x55558af1f760, 24) = 0 [pid 5243] chdir("./50") = 0 [pid 5243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5243] setpgid(0, 0) = 0 [pid 5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5243] write(3, "1000", 4) = 4 [pid 5243] close(3) = 0 [pid 5243] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5243] memfd_create("syzkaller", 0) = 3 [pid 5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5243] 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"..., 262144) = 262144 [pid 5243] munmap(0x7f4734e00000, 138412032) = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5243] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5243] close(3) = 0 [pid 5243] close(4) = 0 [pid 5243] mkdir("./bus", 0777) = 0 [ 125.219820][ T5243] loop0: detected capacity change from 0 to 512 [pid 5243] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5243] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5243] chdir("./bus") = 0 [pid 5243] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5243] mkdir("./bus", 0777) = 0 [pid 5243] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5243] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 125.260475][ T5243] ext4 filesystem being mounted at /root/syzkaller.axqtMq/50/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5243] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5243] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5243] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5243] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5243] exit_group(0) = ? [pid 5243] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5243, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./50", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./50/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./50/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./50/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./50/bus") = 0 umount2("./50/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./50/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./50") = 0 mkdir("./51", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5246 attached , child_tidptr=0x55558af1f750) = 5246 [pid 5246] set_robust_list(0x55558af1f760, 24) = 0 [pid 5246] chdir("./51") = 0 [pid 5246] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5246] setpgid(0, 0) = 0 [pid 5246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5246] write(3, "1000", 4) = 4 [pid 5246] close(3) = 0 [pid 5246] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5246] memfd_create("syzkaller", 0) = 3 [pid 5246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5246] 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"..., 262144) = 262144 [pid 5246] munmap(0x7f4734e00000, 138412032) = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5246] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5246] close(3) = 0 [pid 5246] close(4) = 0 [pid 5246] mkdir("./bus", 0777) = 0 [ 125.582108][ T5246] loop0: detected capacity change from 0 to 512 [pid 5246] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5246] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5246] chdir("./bus") = 0 [pid 5246] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5246] mkdir("./bus", 0777) = 0 [pid 5246] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5246] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5246] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5246] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5246] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5246] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5246] exit_group(0) = ? [pid 5246] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5246, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- umount2("./51", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 125.630801][ T5246] ext4 filesystem being mounted at /root/syzkaller.axqtMq/51/bus supports timestamps until 2038-01-19 (0x7fffffff) newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./51/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./51/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./51/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./51/bus") = 0 umount2("./51/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./51/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./51") = 0 mkdir("./52", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5249 attached , child_tidptr=0x55558af1f750) = 5249 [pid 5249] set_robust_list(0x55558af1f760, 24) = 0 [pid 5249] chdir("./52") = 0 [pid 5249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5249] setpgid(0, 0) = 0 [pid 5249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5249] write(3, "1000", 4) = 4 [pid 5249] close(3) = 0 [pid 5249] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5249] memfd_create("syzkaller", 0) = 3 [pid 5249] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5249] 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"..., 262144) = 262144 [pid 5249] munmap(0x7f4734e00000, 138412032) = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5249] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5249] close(3) = 0 [pid 5249] close(4) = 0 [pid 5249] mkdir("./bus", 0777) = 0 [ 125.918722][ T5249] loop0: detected capacity change from 0 to 512 [pid 5249] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5249] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5249] chdir("./bus") = 0 [pid 5249] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5249] mkdir("./bus", 0777) = 0 [pid 5249] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5249] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5249] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5249] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [ 125.978569][ T5249] ext4 filesystem being mounted at /root/syzkaller.axqtMq/52/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5249] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5249] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5249] exit_group(0) = ? [pid 5249] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5249, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./52", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./52/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./52/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./52/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./52/bus") = 0 umount2("./52/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./52/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./52") = 0 mkdir("./53", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5252 attached , child_tidptr=0x55558af1f750) = 5252 [pid 5252] set_robust_list(0x55558af1f760, 24) = 0 [pid 5252] chdir("./53") = 0 [pid 5252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5252] setpgid(0, 0) = 0 [pid 5252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5252] write(3, "1000", 4) = 4 [pid 5252] close(3) = 0 [pid 5252] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5252] memfd_create("syzkaller", 0) = 3 [pid 5252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5252] 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"..., 262144) = 262144 [pid 5252] munmap(0x7f4734e00000, 138412032) = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5252] close(3) = 0 [pid 5252] close(4) = 0 [pid 5252] mkdir("./bus", 0777) = 0 [ 126.222433][ T5252] loop0: detected capacity change from 0 to 512 [pid 5252] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5252] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5252] chdir("./bus") = 0 [pid 5252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5252] mkdir("./bus", 0777) = 0 [pid 5252] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5252] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [ 126.273214][ T5252] ext4 filesystem being mounted at /root/syzkaller.axqtMq/53/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5252] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5252] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5252] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5252] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5252] exit_group(0) = ? [pid 5252] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5252, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- umount2("./53", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 126.339091][ T28] kauditd_printk_skb: 18 callbacks suppressed [ 126.339115][ T28] audit: type=1800 audit(1714031319.888:108): pid=5252 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 126.366283][ T28] audit: type=1800 audit(1714031319.888:109): pid=5252 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./53/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./53/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./53/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./53/bus") = 0 umount2("./53/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./53/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./53") = 0 mkdir("./54", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5255 attached , child_tidptr=0x55558af1f750) = 5255 [pid 5255] set_robust_list(0x55558af1f760, 24) = 0 [pid 5255] chdir("./54") = 0 [pid 5255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5255] setpgid(0, 0) = 0 [pid 5255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5255] write(3, "1000", 4) = 4 [pid 5255] close(3) = 0 [pid 5255] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5255] memfd_create("syzkaller", 0) = 3 [pid 5255] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5255] 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"..., 262144) = 262144 [pid 5255] munmap(0x7f4734e00000, 138412032) = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5255] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5255] close(3) = 0 [pid 5255] close(4) = 0 [pid 5255] mkdir("./bus", 0777) = 0 [ 126.571366][ T5255] loop0: detected capacity change from 0 to 512 [pid 5255] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5255] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5255] chdir("./bus") = 0 [pid 5255] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5255] mkdir("./bus", 0777) = 0 [pid 5255] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5255] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5255] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 126.629433][ T5255] ext4 filesystem being mounted at /root/syzkaller.axqtMq/54/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5255] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5255] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5255] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5255] exit_group(0) = ? [pid 5255] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5255, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./54", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 [ 126.672445][ T28] audit: type=1800 audit(1714031320.218:110): pid=5255 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 126.695374][ T28] audit: type=1800 audit(1714031320.248:111): pid=5255 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./54/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./54/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./54/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./54/bus") = 0 umount2("./54/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./54/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./54") = 0 mkdir("./55", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5258 attached , child_tidptr=0x55558af1f750) = 5258 [pid 5258] set_robust_list(0x55558af1f760, 24) = 0 [pid 5258] chdir("./55") = 0 [pid 5258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5258] setpgid(0, 0) = 0 [pid 5258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5258] write(3, "1000", 4) = 4 [pid 5258] close(3) = 0 [pid 5258] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5258] memfd_create("syzkaller", 0) = 3 [pid 5258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5258] 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"..., 262144) = 262144 [pid 5258] munmap(0x7f4734e00000, 138412032) = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5258] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5258] close(3) = 0 [pid 5258] close(4) = 0 [pid 5258] mkdir("./bus", 0777) = 0 [ 126.979626][ T5258] loop0: detected capacity change from 0 to 512 [pid 5258] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5258] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5258] chdir("./bus") = 0 [pid 5258] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5258] mkdir("./bus", 0777) = 0 [pid 5258] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5258] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5258] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 127.033309][ T5258] ext4 filesystem being mounted at /root/syzkaller.axqtMq/55/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5258] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5258] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5258] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5258] exit_group(0) = ? [pid 5258] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5258, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./55", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./55/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./55/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./55/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 127.087888][ T28] audit: type=1800 audit(1714031320.638:112): pid=5258 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 127.109500][ T28] audit: type=1800 audit(1714031320.638:113): pid=5258 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 getdents64(4, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./55/bus") = 0 umount2("./55/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./55/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./55") = 0 mkdir("./56", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5261 attached [pid 5261] set_robust_list(0x55558af1f760, 24) = 0 [pid 5261] chdir("./56" [pid 5083] <... clone resumed>, child_tidptr=0x55558af1f750) = 5261 [pid 5261] <... chdir resumed>) = 0 [pid 5261] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5261] setpgid(0, 0) = 0 [pid 5261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5261] write(3, "1000", 4) = 4 [pid 5261] close(3) = 0 [pid 5261] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5261] memfd_create("syzkaller", 0) = 3 [pid 5261] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5261] 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"..., 262144) = 262144 [pid 5261] munmap(0x7f4734e00000, 138412032) = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5261] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5261] close(3) = 0 [pid 5261] close(4) = 0 [pid 5261] mkdir("./bus", 0777) = 0 [ 127.319639][ T5261] loop0: detected capacity change from 0 to 512 [pid 5261] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5261] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5261] chdir("./bus") = 0 [pid 5261] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5261] mkdir("./bus", 0777) = 0 [pid 5261] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5261] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5261] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5261] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [ 127.379384][ T5261] ext4 filesystem being mounted at /root/syzkaller.axqtMq/56/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5261] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5261] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5261] exit_group(0) = ? [pid 5261] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5261, si_uid=0, si_status=0, si_utime=0, si_stime=6 /* 0.06 s */} --- umount2("./56", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 127.437105][ T28] audit: type=1800 audit(1714031320.988:114): pid=5261 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 127.458212][ T28] audit: type=1800 audit(1714031320.988:115): pid=5261 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./56/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./56/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./56/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./56/bus") = 0 umount2("./56/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./56/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./56") = 0 mkdir("./57", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5264 attached , child_tidptr=0x55558af1f750) = 5264 [pid 5264] set_robust_list(0x55558af1f760, 24) = 0 [pid 5264] chdir("./57") = 0 [pid 5264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5264] setpgid(0, 0) = 0 [pid 5264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5264] write(3, "1000", 4) = 4 [pid 5264] close(3) = 0 [pid 5264] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5264] memfd_create("syzkaller", 0) = 3 [pid 5264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5264] 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"..., 262144) = 262144 [pid 5264] munmap(0x7f4734e00000, 138412032) = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5264] close(3) = 0 [pid 5264] close(4) = 0 [pid 5264] mkdir("./bus", 0777) = 0 [ 127.737888][ T5264] loop0: detected capacity change from 0 to 512 [pid 5264] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5264] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5264] chdir("./bus") = 0 [pid 5264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5264] mkdir("./bus", 0777) = 0 [pid 5264] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5264] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5264] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [ 127.799862][ T5264] ext4 filesystem being mounted at /root/syzkaller.axqtMq/57/bus supports timestamps until 2038-01-19 (0x7fffffff) [pid 5264] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5264] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [pid 5264] ioctl(5, _IOC(_IOC_READ|_IOC_WRITE, 0x66, 0xf, 0x28), 0x20000240) = -1 EINVAL (Invalid argument) [pid 5264] exit_group(0) = ? [pid 5264] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5264, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- umount2("./57", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57", 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, 0x55558af207f0 /* 4 entries */, 32768) = 104 [ 127.855197][ T28] audit: type=1800 audit(1714031321.408:116): pid=5264 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 127.876206][ T28] audit: type=1800 audit(1714031321.408:117): pid=5264 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz-executor380" name="file2" dev="loop0" ino=16 res=0 errno=0 umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./57/bus", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./57/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./57/bus", 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, 0x55558af28830 /* 2 entries */, 32768) = 48 getdents64(4, 0x55558af28830 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./57/bus") = 0 umount2("./57/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./57/binderfs") = 0 getdents64(3, 0x55558af207f0 /* 0 entries */, 32768) = 0 close(3) = 0 rmdir("./57") = 0 mkdir("./58", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5267 attached , child_tidptr=0x55558af1f750) = 5267 [pid 5267] set_robust_list(0x55558af1f760, 24) = 0 [pid 5267] chdir("./58") = 0 [pid 5267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5267] setpgid(0, 0) = 0 [pid 5267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5267] write(3, "1000", 4) = 4 [pid 5267] close(3) = 0 [pid 5267] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5267] memfd_create("syzkaller", 0) = 3 [pid 5267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4734e00000 [pid 5267] 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"..., 262144) = 262144 [pid 5267] munmap(0x7f4734e00000, 138412032) = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5267] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5267] close(3) = 0 [pid 5267] close(4) = 0 [pid 5267] mkdir("./bus", 0777) = 0 [ 128.120237][ T5267] loop0: detected capacity change from 0 to 512 [pid 5267] mount("/dev/loop0", "./bus", "ext4", 0, ",errors=continue") = 0 [pid 5267] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5267] chdir("./bus") = 0 [pid 5267] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5267] mkdir("./bus", 0777) = 0 [pid 5267] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5267] mkdirat(AT_FDCWD, "./bus/file0", 000) = 0 [pid 5267] setxattr("./bus/file0", "security.apparmor", "\x6f\x76\x65\x72\x6c\x61\x79\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x73\x65\x63\x75\x72\x69\x74\x79\x2e\x61\x70\x70\x61\x72\x6d\x6f\x72\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 58375, 0) = 0 [pid 5267] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT|FASYNC, 000) = 4 [pid 5267] openat(AT_FDCWD, "./file2", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_DIRECT|O_CLOEXEC|FASYNC, 000) = 5 [ 128.160732][ T5267] ext4 filesystem being mounted at /root/syzkaller.axqtMq/58/bus supports timestamps until 2038-01-19 (0x7fffffff) [ 128.217984][ T5267] ------------[ cut here ]------------ [ 128.223489][ T5267] Looking for class "&ei->i_data_sem" with key __key.0, but found a different class "&ei->i_data_sem" with the same key [ 128.236108][ T5267] WARNING: CPU: 1 PID: 5267 at kernel/locking/lockdep.c:932 look_up_lock_class+0x133/0x140 [ 128.246134][ T5267] Modules linked in: [ 128.250027][ T5267] CPU: 1 PID: 5267 Comm: syz-executor380 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 [ 128.260453][ T5267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 128.270514][ T5267] RIP: 0010:look_up_lock_class+0x133/0x140 [ 128.276357][ T5267] Code: c7 c7 20 be 2c 8b e8 8c 3a 75 f6 90 0f 0b 90 90 90 31 db eb be c6 05 de 81 cd 04 01 90 48 c7 c7 40 c1 2c 8b e8 6e 3a 75 f6 90 <0f> 0b 90 90 e9 62 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 [ 128.296015][ T5267] RSP: 0018:ffffc90002e7f638 EFLAGS: 00010086 [ 128.302088][ T5267] RAX: 0000000000000000 RBX: ffffffff940497a8 RCX: ffffffff815174a9 [ 128.310068][ T5267] RDX: ffff8880267e3c00 RSI: ffffffff815174b6 RDI: 0000000000000001 [ 128.318047][ T5267] RBP: ffffffff949a36a1 R08: 0000000000000001 R09: 0000000000000000 [ 128.326027][ T5267] R10: 0000000000000000 R11: 20676e696b6f6f4c R12: ffff888076df8c88 [ 128.334006][ T5267] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff948d7aa0 [ 128.341989][ T5267] FS: 000055558af1f480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 128.350932][ T5267] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 128.357528][ T5267] CR2: 00007f473d34a100 CR3: 000000007bf36000 CR4: 0000000000350ef0 [ 128.365509][ T5267] Call Trace: [ 128.368800][ T5267] [ 128.371739][ T5267] ? show_regs+0x8c/0xa0 [ 128.375998][ T5267] ? __warn+0xe5/0x3c0 [ 128.380096][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.385764][ T5267] ? look_up_lock_class+0x133/0x140 [ 128.391023][ T5267] ? report_bug+0x3c0/0x580 [ 128.395560][ T5267] ? handle_bug+0x3d/0x70 [ 128.399906][ T5267] ? exc_invalid_op+0x17/0x50 [ 128.404603][ T5267] ? asm_exc_invalid_op+0x1a/0x20 [ 128.409656][ T5267] ? __warn_printk+0x199/0x350 [ 128.414438][ T5267] ? __warn_printk+0x1a6/0x350 [ 128.419217][ T5267] ? look_up_lock_class+0x133/0x140 [ 128.424452][ T5267] ? look_up_lock_class+0x132/0x140 [ 128.429679][ T5267] register_lock_class+0xb1/0x1230 [ 128.434820][ T5267] ? register_lock_class+0xb1/0x1230 [ 128.440146][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.445799][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.451450][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.457098][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.462756][ T5267] ? find_held_lock+0x2d/0x110 [ 128.467550][ T5267] __lock_acquire+0x111/0x3b30 [ 128.472339][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.478002][ T5267] ? __pfx___lock_acquire+0x10/0x10 [ 128.483219][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.488876][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.494529][ T5267] ? __down_write_common+0x15e/0x13f0 [ 128.499927][ T5267] lock_acquire+0x1b1/0x560 [ 128.504450][ T5267] ? ext4_move_extents+0x9d8/0x3590 [ 128.509678][ T5267] ? __pfx_lock_acquire+0x10/0x10 [ 128.514724][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.520400][ T5267] ? __pfx___might_resched+0x10/0x10 [ 128.525739][ T5267] ? __pfx___might_resched+0x10/0x10 [ 128.531044][ T5267] ? __pfx___might_resched+0x10/0x10 [ 128.536357][ T5267] down_write_nested+0x3d/0x50 [ 128.541151][ T5267] ? ext4_move_extents+0x9d8/0x3590 [ 128.546462][ T5267] ext4_move_extents+0x9d8/0x3590 [ 128.551521][ T5267] ? __pfx_mark_lock+0x10/0x10 [ 128.556310][ T5267] ? __pfx___lock_acquire+0x10/0x10 [ 128.561561][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.567222][ T5267] ? __pfx_ext4_move_extents+0x10/0x10 [ 128.572720][ T5267] ? __pfx_lock_acquire+0x10/0x10 [ 128.577789][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.583447][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.589109][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.594773][ T5267] __ext4_ioctl+0x3ae4/0x4570 [ 128.599489][ T5267] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 128.605496][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.611152][ T5267] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 128.617064][ T5267] ? __pfx___ext4_ioctl+0x10/0x10 [ 128.622126][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.627791][ T5267] ? do_vfs_ioctl+0x515/0x1ac0 [ 128.632618][ T5267] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 128.637688][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.643341][ T5267] ? find_held_lock+0x2d/0x110 [ 128.648142][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.653806][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.659460][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.665112][ T5267] ? __pfx_ext4_ioctl+0x10/0x10 [ 128.669995][ T5267] __x64_sys_ioctl+0x196/0x220 [ 128.674792][ T5267] do_syscall_64+0xcf/0x260 [ 128.679315][ T5267] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 128.685226][ T5267] RIP: 0033:0x7f473d2d1aa9 [ 128.689652][ T5267] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 128.709288][ T5267] RSP: 002b:00007ffe74906978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 128.717717][ T5267] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f473d2d1aa9 [ 128.725701][ T5267] RDX: 0000000020000240 RSI: 00000000c028660f RDI: 0000000000000005 [ 128.733686][ T5267] RBP: 0000000000000000 R08: 00007ffe749069ac R09: 00007ffe749069ac [ 128.741670][ T5267] R10: 00007ffe749069ac R11: 0000000000000246 R12: 00007ffe749069ac [ 128.749655][ T5267] R13: 000000000000003a R14: 431bde82d7b634db R15: 00007ffe749069e0 [ 128.757654][ T5267] [ 128.760679][ T5267] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 128.767961][ T5267] CPU: 1 PID: 5267 Comm: syz-executor380 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0 [ 128.778388][ T5267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 128.788451][ T5267] Call Trace: [ 128.791735][ T5267] [ 128.794670][ T5267] dump_stack_lvl+0x3d/0x1f0 [ 128.799295][ T5267] panic+0x6f5/0x7a0 [ 128.803215][ T5267] ? __pfx_panic+0x10/0x10 [ 128.807649][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.813314][ T5267] ? show_trace_log_lvl+0x363/0x500 [ 128.818586][ T5267] ? check_panic_on_warn+0x1f/0xb0 [ 128.823731][ T5267] ? look_up_lock_class+0x133/0x140 [ 128.828960][ T5267] check_panic_on_warn+0xab/0xb0 [ 128.833923][ T5267] __warn+0xf1/0x3c0 [ 128.837839][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.843496][ T5267] ? look_up_lock_class+0x133/0x140 [ 128.848729][ T5267] report_bug+0x3c0/0x580 [ 128.853090][ T5267] handle_bug+0x3d/0x70 [ 128.857266][ T5267] exc_invalid_op+0x17/0x50 [ 128.861787][ T5267] asm_exc_invalid_op+0x1a/0x20 [ 128.866656][ T5267] RIP: 0010:look_up_lock_class+0x133/0x140 [ 128.872501][ T5267] Code: c7 c7 20 be 2c 8b e8 8c 3a 75 f6 90 0f 0b 90 90 90 31 db eb be c6 05 de 81 cd 04 01 90 48 c7 c7 40 c1 2c 8b e8 6e 3a 75 f6 90 <0f> 0b 90 90 e9 62 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 [ 128.892131][ T5267] RSP: 0018:ffffc90002e7f638 EFLAGS: 00010086 [ 128.898209][ T5267] RAX: 0000000000000000 RBX: ffffffff940497a8 RCX: ffffffff815174a9 [ 128.906200][ T5267] RDX: ffff8880267e3c00 RSI: ffffffff815174b6 RDI: 0000000000000001 [ 128.914179][ T5267] RBP: ffffffff949a36a1 R08: 0000000000000001 R09: 0000000000000000 [ 128.922160][ T5267] R10: 0000000000000000 R11: 20676e696b6f6f4c R12: ffff888076df8c88 [ 128.930141][ T5267] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff948d7aa0 [ 128.938130][ T5267] ? __warn_printk+0x199/0x350 [ 128.942916][ T5267] ? __warn_printk+0x1a6/0x350 [ 128.947701][ T5267] ? look_up_lock_class+0x132/0x140 [ 128.952938][ T5267] register_lock_class+0xb1/0x1230 [ 128.958071][ T5267] ? register_lock_class+0xb1/0x1230 [ 128.963386][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.969039][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.974693][ T5267] ? __pfx_register_lock_class+0x10/0x10 [ 128.980338][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 128.985998][ T5267] ? find_held_lock+0x2d/0x110 [ 128.990792][ T5267] __lock_acquire+0x111/0x3b30 [ 128.995582][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.001250][ T5267] ? __pfx___lock_acquire+0x10/0x10 [ 129.006466][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.012122][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.017777][ T5267] ? __down_write_common+0x15e/0x13f0 [ 129.023177][ T5267] lock_acquire+0x1b1/0x560 [ 129.027696][ T5267] ? ext4_move_extents+0x9d8/0x3590 [ 129.032922][ T5267] ? __pfx_lock_acquire+0x10/0x10 [ 129.037962][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.044954][ T5267] ? __pfx___might_resched+0x10/0x10 [ 129.050281][ T5267] ? __pfx___might_resched+0x10/0x10 [ 129.055590][ T5267] ? __pfx___might_resched+0x10/0x10 [ 129.060910][ T5267] down_write_nested+0x3d/0x50 [ 129.065696][ T5267] ? ext4_move_extents+0x9d8/0x3590 [ 129.070920][ T5267] ext4_move_extents+0x9d8/0x3590 [ 129.075986][ T5267] ? __pfx_mark_lock+0x10/0x10 [ 129.080768][ T5267] ? __pfx___lock_acquire+0x10/0x10 [ 129.085990][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.091656][ T5267] ? __pfx_ext4_move_extents+0x10/0x10 [ 129.097161][ T5267] ? __pfx_lock_acquire+0x10/0x10 [ 129.102205][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.107863][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.113521][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.119179][ T5267] __ext4_ioctl+0x3ae4/0x4570 [ 129.123890][ T5267] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 129.129895][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.135547][ T5267] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 129.141461][ T5267] ? __pfx___ext4_ioctl+0x10/0x10 [ 129.146520][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.152173][ T5267] ? do_vfs_ioctl+0x515/0x1ac0 [ 129.156969][ T5267] ? __pfx_do_vfs_ioctl+0x10/0x10 [ 129.162032][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.167686][ T5267] ? find_held_lock+0x2d/0x110 [ 129.172479][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.178147][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.183800][ T5267] ? srso_alias_return_thunk+0x5/0xfbef5 [ 129.189463][ T5267] ? __pfx_ext4_ioctl+0x10/0x10 [ 129.194375][ T5267] __x64_sys_ioctl+0x196/0x220 [ 129.199171][ T5267] do_syscall_64+0xcf/0x260 [ 129.203694][ T5267] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 129.209606][ T5267] RIP: 0033:0x7f473d2d1aa9 [ 129.214034][ T5267] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 129.233668][ T5267] RSP: 002b:00007ffe74906978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 129.242098][ T5267] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f473d2d1aa9 [ 129.250080][ T5267] RDX: 0000000020000240 RSI: 00000000c028660f RDI: 0000000000000005 [ 129.258060][ T5267] RBP: 0000000000000000 R08: 00007ffe749069ac R09: 00007ffe749069ac [ 129.266040][ T5267] R10: 00007ffe749069ac R11: 0000000000000246 R12: 00007ffe749069ac [ 129.274021][ T5267] R13: 000000000000003a R14: 431bde82d7b634db R15: 00007ffe749069e0 [ 129.282016][ T5267] [ 129.285286][ T5267] Kernel Offset: disabled [ 129.289613][ T5267] Rebooting in 86400 seconds..