./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1365411344 <...> d { noatsecure } for pid=219 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.310328][ T24] audit: type=1400 audit(1728137994.659:63): avc: denied { write } for pid=219 comm="sh" path="pipe:[12942]" dev="pipefs" ino=12942 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 12.313421][ T24] audit: type=1400 audit(1728137994.659:64): avc: denied { rlimitinh } for pid=219 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.315970][ T24] audit: type=1400 audit(1728137994.659:65): avc: denied { siginh } for pid=219 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.2' (ED25519) to the list of known hosts. execve("./syz-executor1365411344", ["./syz-executor1365411344"], 0x7ffe82e69280 /* 10 vars */) = 0 brk(NULL) = 0x55556a06a000 brk(0x55556a06ad40) = 0x55556a06ad40 arch_prctl(ARCH_SET_FS, 0x55556a06a3c0) = 0 set_tid_address(0x55556a06a690) = 288 set_robust_list(0x55556a06a6a0, 24) = 0 rseq(0x55556a06ace0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1365411344", 4096) = 28 getrandom("\xa5\xab\x48\x64\xd7\x5e\x58\x8e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a06ad40 brk(0x55556a08bd40) = 0x55556a08bd40 brk(0x55556a08c000) = 0x55556a08c000 mprotect(0x7fb8e85d9000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 289 ./strace-static-x86_64: Process 289 attached [pid 289] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 289] mkdir("./syzkaller.AoW4sY", 0700 [pid 288] <... clone resumed>, child_tidptr=0x55556a06a690) = 290 ./strace-static-x86_64: Process 290 attached [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 290] set_robust_list(0x55556a06a6a0, 24 [pid 289] <... mkdir resumed>) = 0 [pid 289] chmod("./syzkaller.AoW4sY", 0777) = 0 [pid 289] chdir("./syzkaller.AoW4sY") = 0 [pid 289] mkdir("./0", 0777 [pid 288] <... clone resumed>, child_tidptr=0x55556a06a690) = 291 [pid 290] <... set_robust_list resumed>) = 0 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 289] <... mkdir resumed>) = 0 [pid 289] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 288] <... clone resumed>, child_tidptr=0x55556a06a690) = 292 [pid 288] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 292 attached ./strace-static-x86_64: Process 291 attached [pid 290] mkdir("./syzkaller.sbqhVo", 0700./strace-static-x86_64: Process 293 attached [pid 288] <... clone resumed>, child_tidptr=0x55556a06a690) = 293 [pid 292] set_robust_list(0x55556a06a6a0, 24 [pid 291] set_robust_list(0x55556a06a6a0, 24 [pid 290] <... mkdir resumed>) = 0 [pid 289] <... openat resumed>) = 3 [pid 290] chmod("./syzkaller.sbqhVo", 0777) = 0 [pid 290] chdir("./syzkaller.sbqhVo") = 0 [pid 290] mkdir("./0", 0777) = 0 [pid 290] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 290] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 290] close(3) = 0 [pid 290] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 294 [pid 291] <... set_robust_list resumed>) = 0 [pid 291] mkdir("./syzkaller.dJ5SkZ", 0700) = 0 [pid 291] chmod("./syzkaller.dJ5SkZ", 0777) = 0 [pid 291] chdir("./syzkaller.dJ5SkZ") = 0 [pid 291] mkdir("./0", 0777) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 295 [pid 292] <... set_robust_list resumed>) = 0 [pid 292] mkdir("./syzkaller.vKkqYA", 0700) = 0 [pid 292] chmod("./syzkaller.vKkqYA", 0777) = 0 [pid 292] chdir("./syzkaller.vKkqYA") = 0 [pid 292] mkdir("./0", 0777) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 297 [pid 293] set_robust_list(0x55556a06a6a0, 24 [pid 289] ioctl(3, LOOP_CLR_FD [pid 293] <... set_robust_list resumed>) = 0 [pid 289] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 293] mkdir("./syzkaller.QeygwM", 0700 [pid 289] close(3) = 0 [pid 289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... mkdir resumed>) = 0 [pid 289] <... clone resumed>, child_tidptr=0x55556a06a690) = 298 [pid 293] chmod("./syzkaller.QeygwM", 0777) = 0 [pid 293] chdir("./syzkaller.QeygwM") = 0 [pid 293] mkdir("./0", 0777) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 299 ./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 299] chdir("./0") = 0 [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] setpgid(0, 0) = 0 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 299] close(3) = 0 [pid 299] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 299] write(1, "executing program\n", 18) = 18 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 299] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 299] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 299] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} => {parent_tid=[300]}, 88) = 300 [pid 299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x7fb8e85139a0, 24) = 0 [pid 300] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 300] memfd_create("syzkaller", 0) = 3 [pid 300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 300] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 300] munmap(0x7fb8e00f3000, 138412032executing program ) = 0 [pid 300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 300] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 294 attached [pid 294] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 294] chdir("./0") = 0 [pid 294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] setpgid(0, 0) = 0 [pid 294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] write(3, "1000", 4) = 4 [pid 294] close(3) = 0 [pid 294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 294] write(1, "executing program\n", 18) = 18 [pid 294] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 294] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 294] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} => {parent_tid=[302]}, 88) = 302 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x7fb8e85139a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 302] memfd_create("syzkaller", 0) = 3 [pid 302] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 302] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 ./strace-static-x86_64: Process 295 attached ./strace-static-x86_64: Process 298 attached ./strace-static-x86_64: Process 297 attached [pid 302] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 302] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 297] set_robust_list(0x55556a06a6a0, 24 [pid 295] set_robust_list(0x55556a06a6a0, 24 [pid 298] set_robust_list(0x55556a06a6a0, 24 [pid 295] <... set_robust_list resumed>) = 0 [pid 297] <... set_robust_list resumed>) = 0 [pid 295] chdir("./0" [pid 298] <... set_robust_list resumed>) = 0 [pid 297] chdir("./0" [pid 295] <... chdir resumed>) = 0 [pid 298] chdir("./0" [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... chdir resumed>) = 0 [pid 295] <... prctl resumed>) = 0 [pid 298] <... chdir resumed>) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 295] setpgid(0, 0 [pid 300] <... ioctl resumed>) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 297] <... prctl resumed>) = 0 [pid 295] <... setpgid resumed>) = 0 [pid 300] close(3) = 0 [pid 300] close(4 [pid 298] <... prctl resumed>) = 0 [pid 298] setpgid(0, 0 [pid 297] setpgid(0, 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... setpgid resumed>) = 0 [pid 298] <... setpgid resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 295] write(3, "1000", 4 [pid 298] <... openat resumed>) = 3 [pid 297] <... openat resumed>) = 3 [pid 298] write(3, "1000", 4 [pid 297] write(3, "1000", 4 [pid 295] <... write resumed>) = 4 [pid 298] <... write resumed>) = 4 [pid 297] <... write resumed>) = 4 [pid 295] close(3 [pid 298] close(3 [pid 297] close(3 [pid 295] <... close resumed>) = 0 [pid 297] <... close resumed>) = 0 [pid 298] <... close resumed>) = 0 [pid 295] symlink("/dev/binderfs", "./binderfs" [pid 298] symlink("/dev/binderfs", "./binderfs" [pid 297] symlink("/dev/binderfs", "./binderfs" [pid 295] <... symlink resumed>) = 0 executing program [pid 295] write(1, "executing program\n", 18) = 18 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 295] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 295] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} [pid 297] <... symlink resumed>) = 0 [pid 298] <... symlink resumed>) = 0 [pid 297] write(1, "executing program\n", 18 [pid 295] <... clone3 resumed> => {parent_tid=[305]}, 88) = 305 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x7fb8e85139a0, 24) = 0 [pid 305] rt_sigprocmask(SIG_SETMASK, [], executing program [pid 297] <... write resumed>) = 18 [pid 298] write(1, "executing program\n", 18 [pid 305] <... rt_sigprocmask resumed>NULL, 8) = 0 executing program [pid 305] memfd_create("syzkaller", 0 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... write resumed>) = 18 [pid 305] <... memfd_create resumed>) = 3 [pid 305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = 0 [pid 297] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, [pid 298] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, [pid 297] <... rt_sigaction resumed>NULL, 8) = 0 [pid 298] <... rt_sigaction resumed>NULL, 8) = 0 [pid 297] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 297] <... mmap resumed>) = 0x7fb8e84f3000 [pid 298] <... mmap resumed>) = 0x7fb8e84f3000 [pid 297] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE [pid 298] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE [pid 297] <... mprotect resumed>) = 0 [pid 298] <... mprotect resumed>) = 0 [pid 297] rt_sigprocmask(SIG_BLOCK, ~[], [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [pid 297] <... rt_sigprocmask resumed>[], 8) = 0 [pid 298] <... rt_sigprocmask resumed>[], 8) = 0 [pid 297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} [pid 297] <... clone3 resumed> => {parent_tid=[306]}, 88) = 306 [pid 298] <... clone3 resumed> => {parent_tid=[307]}, 88) = 307 [pid 297] rt_sigprocmask(SIG_SETMASK, [], [pid 298] rt_sigprocmask(SIG_SETMASK, [], [pid 297] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 298] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = 0 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 306 attached ./strace-static-x86_64: Process 307 attached [pid 305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 307] set_robust_list(0x7fb8e85139a0, 24 [pid 306] set_robust_list(0x7fb8e85139a0, 24 [pid 305] <... write resumed>) = 1048576 [pid 307] <... set_robust_list resumed>) = 0 [pid 306] <... set_robust_list resumed>) = 0 [pid 305] munmap(0x7fb8e00f3000, 138412032 [pid 306] rt_sigprocmask(SIG_SETMASK, [], [pid 307] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 306] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 307] memfd_create("syzkaller", 0 [pid 306] memfd_create("syzkaller", 0 [pid 305] <... munmap resumed>) = 0 [pid 306] <... memfd_create resumed>) = 3 [pid 307] <... memfd_create resumed>) = 3 [pid 305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 307] <... mmap resumed>) = 0x7fb8e00f3000 [pid 306] <... mmap resumed>) = 0x7fb8e00f3000 [pid 306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 306] <... write resumed>) = 1048576 [pid 306] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 307] <... write resumed>) = 1048576 [pid 306] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 307] munmap(0x7fb8e00f3000, 138412032) = 0 [ 21.563478][ T24] audit: type=1400 audit(1728138003.919:66): avc: denied { execmem } for pid=288 comm="syz-executor136" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.570516][ T24] audit: type=1400 audit(1728138003.929:67): avc: denied { read write } for pid=289 comm="syz-executor136" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.574043][ T24] audit: type=1400 audit(1728138003.929:68): avc: denied { open } for pid=289 comm="syz-executor136" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.586993][ T24] audit: type=1400 audit(1728138003.929:69): avc: denied { ioctl } for pid=290 comm="syz-executor136" path="/dev/loop1" dev="devtmpfs" ino=112 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 307] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 300] <... close resumed>) = 0 [pid 302] <... openat resumed>) = 4 [pid 302] ioctl(4, LOOP_SET_FD, 3 [pid 300] mkdir("./file1", 0777 [pid 302] <... ioctl resumed>) = 0 [pid 302] close(3) = 0 [pid 302] close(4 [pid 300] <... mkdir resumed>) = 0 [pid 300] mount("/dev/loop4", "./file1", "ext4", 0, ",errors=continue" [pid 302] <... close resumed>) = 0 [pid 302] mkdir("./file1", 0777 [pid 305] <... openat resumed>) = 4 [pid 302] <... mkdir resumed>) = 0 [pid 306] <... openat resumed>) = 4 [pid 302] mount("/dev/loop1", "./file1", "ext4", 0, ",errors=continue" [pid 305] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 305] close(3) = 0 [pid 305] close(4 [pid 307] <... openat resumed>) = 4 [pid 306] ioctl(4, LOOP_SET_FD, 3 [ 21.661917][ T24] audit: type=1400 audit(1728138004.019:70): avc: denied { mounton } for pid=299 comm="syz-executor136" path="/root/syzkaller.QeygwM/0/file1" dev="sda1" ino=1942 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 307] ioctl(4, LOOP_SET_FD, 3 [pid 305] <... close resumed>) = 0 [pid 300] <... mount resumed>) = 0 [pid 305] mkdir("./file1", 0777 [pid 300] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 305] <... mkdir resumed>) = 0 [pid 302] <... mount resumed>) = 0 [pid 300] <... openat resumed>) = 3 [pid 305] mount("/dev/loop2", "./file1", "ext4", 0, ",errors=continue" [pid 300] chdir("./file1") = 0 [pid 302] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 300] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 302] <... openat resumed>) = 3 [pid 302] chdir("./file1") = 0 [pid 302] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 306] <... ioctl resumed>) = 0 [pid 306] close(3) = 0 [pid 306] close(4 [pid 307] <... ioctl resumed>) = 0 [pid 306] <... close resumed>) = 0 [pid 300] <... openat resumed>) = 4 [pid 307] close(3 [pid 306] mkdir("./file1", 0777 [pid 307] <... close resumed>) = 0 [pid 306] <... mkdir resumed>) = 0 [pid 300] ioctl(4, LOOP_CLR_FD [pid 307] close(4 [pid 306] mount("/dev/loop3", "./file1", "ext4", 0, ",errors=continue" [pid 300] <... ioctl resumed>) = 0 [pid 302] <... openat resumed>) = 4 [pid 300] close(4 [pid 302] ioctl(4, LOOP_CLR_FD [pid 300] <... close resumed>) = 0 [pid 302] <... ioctl resumed>) = 0 [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] close(4 [pid 300] <... futex resumed>) = 1 [pid 299] <... futex resumed>) = 0 [pid 302] <... close resumed>) = 0 [pid 300] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 299] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 300] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... futex resumed>) = 0 [ 21.718254][ T300] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue [ 21.727479][ T24] audit: type=1400 audit(1728138004.089:71): avc: denied { mount } for pid=299 comm="syz-executor136" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 21.728318][ T302] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] <... close resumed>) = 0 [pid 300] <... open resumed>) = 4 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] mkdir("./file1", 0777 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... mkdir resumed>) = 0 [pid 307] mount("/dev/loop0", "./file1", "ext4", 0, ",errors=continue" [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 300] <... futex resumed>) = 1 [pid 299] <... futex resumed>) = 0 [pid 300] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... open resumed>) = 4 [pid 300] <... open resumed>) = 5 [pid 299] <... futex resumed>) = 0 [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [pid 300] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 294] <... futex resumed>) = 0 [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 299] <... futex resumed>) = 0 [pid 294] <... futex resumed>) = 0 [pid 302] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 300] creat("./bus", 000 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... open resumed>) = 5 [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] <... creat resumed>) = 6 [pid 302] <... futex resumed>) = 1 [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] <... futex resumed>) = 1 [pid 299] <... futex resumed>) = 0 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 294] <... futex resumed>) = 0 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] pwrite64(6, "+", 1, 0 [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 0 [pid 302] creat("./bus", 000 [pid 300] <... pwrite64 resumed>) = 1 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... creat resumed>) = 6 [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] <... futex resumed>) = 1 [pid 299] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 294] <... futex resumed>) = 0 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] pwrite64(6, "+", 1, 0 [pid 300] open("./bus", O_RDONLY [pid 299] <... futex resumed>) = 0 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... pwrite64 resumed>) = 1 [pid 300] <... open resumed>) = 7 [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... futex resumed>) = 0 [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 0 [pid 300] <... futex resumed>) = 0 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] <... futex resumed>) = 0 [pid 294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] copy_file_range(7, NULL, 5, [65536], 6, 0 [pid 299] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 300] <... copy_file_range resumed>) = 1 [pid 299] <... futex resumed>) = 0 [pid 294] <... futex resumed>) = 1 [pid 299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] open("./bus", O_RDONLY [pid 300] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... mmap resumed>) = 0x7fb8e84d2000 [pid 302] <... open resumed>) = 7 [pid 300] <... futex resumed>) = 0 [pid 299] mprotect(0x7fb8e84d3000, 131072, PROT_READ|PROT_WRITE [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] <... futex resumed>) = 1 [pid 299] <... mprotect resumed>) = 0 [pid 294] <... futex resumed>) = 0 [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] rt_sigprocmask(SIG_BLOCK, ~[], [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... rt_sigprocmask resumed>[], 8) = 0 [pid 302] copy_file_range(7, NULL, 5, [65536], 6, 0 [pid 294] <... futex resumed>) = 0 [pid 299] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e84f2990, parent_tid=0x7fb8e84f2990, exit_signal=0, stack=0x7fb8e84d2000, stack_size=0x20300, tls=0x7fb8e84f26c0} [pid 294] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] <... clone3 resumed> => {parent_tid=[322]}, 88) = 322 [pid 294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 302] <... copy_file_range resumed>) = 1 [pid 299] rt_sigprocmask(SIG_SETMASK, [], [pid 302] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 294] <... mmap resumed>) = 0x7fb8e84d2000 [pid 302] <... futex resumed>) = 0 [pid 299] futex(0x7fb8e85df718, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] mprotect(0x7fb8e84d3000, 131072, PROT_READ|PROT_WRITE [pid 302] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] <... futex resumed>) = 0 [pid 294] <... mprotect resumed>) = 0 [pid 299] futex(0x7fb8e85df71c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e84f2990, parent_tid=0x7fb8e84f2990, exit_signal=0, stack=0x7fb8e84d2000, stack_size=0x20300, tls=0x7fb8e84f26c0} => {parent_tid=[323]}, 88) = 323 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7fb8e85df718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fb8e85df71c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 322 attached ./strace-static-x86_64: Process 323 attached [ 21.797242][ T24] audit: type=1400 audit(1728138004.149:72): avc: denied { write } for pid=299 comm="syz-executor136" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [pid 322] set_robust_list(0x7fb8e84f29a0, 24 [pid 323] set_robust_list(0x7fb8e84f29a0, 24 [pid 322] <... set_robust_list resumed>) = 0 [pid 323] <... set_robust_list resumed>) = 0 [pid 323] rt_sigprocmask(SIG_SETMASK, [], [pid 322] rt_sigprocmask(SIG_SETMASK, [], [pid 323] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 322] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 323] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 322] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 323] <... mmap resumed>) = 0x20000000 [pid 305] <... mount resumed>) = 0 [pid 322] <... mmap resumed>) = 0x20000000 [pid 322] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 322] futex(0x7fb8e85df718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 299] <... futex resumed>) = 0 [pid 305] <... openat resumed>) = 3 [pid 299] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 1 [pid 323] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 21.837501][ T305] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue [ 21.850704][ T300] EXT4-fs error (device loop4): ext4_mb_generate_buddy:808: group 0, block bitmap and bg descriptor inconsistent: 0 vs 150994969 free clusters [ 21.861721][ T24] audit: type=1400 audit(1728138004.149:73): avc: denied { add_name } for pid=299 comm="syz-executor136" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [pid 323] futex(0x7fb8e85df718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 299] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 294] <... futex resumed>) = 1 [ 21.866324][ T307] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 21.885897][ T24] audit: type=1400 audit(1728138004.149:74): avc: denied { create } for pid=299 comm="syz-executor136" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 21.895238][ T302] EXT4-fs error (device loop1): ext4_mb_generate_buddy:808: group 0, block bitmap and bg descriptor inconsistent: 0 vs 150994969 free clusters [pid 294] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] chdir("./file1") = 0 [pid 305] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 305] ioctl(4, LOOP_CLR_FD) = 0 [pid 305] close(4) = 0 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 5 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] creat("./bus", 000) = 6 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] pwrite64(6, "+", 1, 0) = 1 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] open("./bus", O_RDONLY) = 7 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84d2000 [pid 295] mprotect(0x7fb8e84d3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e84f2990, parent_tid=0x7fb8e84f2990, exit_signal=0, stack=0x7fb8e84d2000, stack_size=0x20300, tls=0x7fb8e84f26c0} => {parent_tid=[325]}, 88) = 325 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] futex(0x7fb8e85df718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fb8e85df71c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] copy_file_range(7, NULL, 5, [65536], 6, 0) = 1 [pid 305] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 305] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 325 attached [pid 299] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 325] set_robust_list(0x7fb8e84f29a0, 24) = 0 [pid 325] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 325] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 307] <... mount resumed>) = 0 [pid 307] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 307] chdir("./file1") = 0 [pid 307] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 307] ioctl(4, LOOP_CLR_FD) = 0 [pid 307] close(4 [pid 325] <... mmap resumed>) = 0x20000000 [pid 307] <... close resumed>) = 0 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 325] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 305] <... futex resumed>) = 0 [pid 295] <... futex resumed>) = 1 [ 21.914953][ T24] audit: type=1400 audit(1728138004.159:75): avc: denied { read write open } for pid=299 comm="syz-executor136" path="/root/syzkaller.QeygwM/0/file1/bus" dev="loop4" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 21.936693][ T300] EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [pid 325] futex(0x7fb8e85df718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] <... futex resumed>) = 1 [pid 295] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 21.974425][ T305] EXT4-fs error (device loop2): ext4_mb_generate_buddy:808: group 0, block bitmap and bg descriptor inconsistent: 0 vs 150994969 free clusters [ 21.976878][ T302] EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 21.997854][ T305] EXT4-fs (loop2): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 22.001570][ T300] EXT4-fs (loop4): This should not happen!! Data will be lost [ 22.001570][ T300] [ 22.013518][ T305] EXT4-fs (loop2): This should not happen!! Data will be lost [ 22.013518][ T305] [pid 307] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = 0 [pid 307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... open resumed>) = 5 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] <... futex resumed>) = 0 [pid 307] creat("./bus", 000 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... creat resumed>) = 6 [pid 298] <... futex resumed>) = 0 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] pwrite64(6, "+", 1, 0 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... pwrite64 resumed>) = 1 [pid 298] <... futex resumed>) = 0 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] open("./bus", O_RDONLY [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... open resumed>) = 7 [pid 298] <... futex resumed>) = 0 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] copy_file_range(7, NULL, 5, [65536], 6, 0 [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... copy_file_range resumed>) = 1 [pid 298] <... futex resumed>) = 0 [pid 307] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = 0 [pid 307] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84d2000 [pid 298] mprotect(0x7fb8e84d3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e84f2990, parent_tid=0x7fb8e84f2990, exit_signal=0, stack=0x7fb8e84d2000, stack_size=0x20300, tls=0x7fb8e84f26c0} => {parent_tid=[328]}, 88) = 328 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7fb8e85df718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fb8e85df71c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 328 attached [pid 328] set_robust_list(0x7fb8e84f29a0, 24) = 0 [pid 328] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 328] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 298] <... futex resumed>) = 0 [ 22.023137][ T302] EXT4-fs (loop1): This should not happen!! Data will be lost [ 22.023137][ T302] [ 22.031926][ T305] EXT4-fs (loop2): Total free blocks count 0 [ 22.041671][ T306] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue [ 22.046997][ T305] EXT4-fs (loop2): Free/Dirty block details [ 22.061541][ T305] EXT4-fs (loop2): free_blocks=2415919504 [ 22.063678][ T300] EXT4-fs (loop4): Total free blocks count 0 [ 22.067119][ T305] EXT4-fs (loop2): dirty_blocks=32 [ 22.067132][ T305] EXT4-fs (loop2): Block reservation details [pid 298] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... futex resumed>) = 0 [pid 298] <... futex resumed>) = 1 [pid 305] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000380} --- [pid 298] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 328] <... futex resumed>) = 1 [pid 328] futex(0x7fb8e85df718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 306] <... mount resumed>) = 0 [pid 302] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000380} --- [pid 325] <... futex resumed>) = ? [pid 306] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 325] +++ killed by SIGBUS +++ [pid 323] <... futex resumed>) = ? [pid 306] <... openat resumed>) = 3 [ 22.076963][ T307] EXT4-fs error (device loop0): ext4_mb_generate_buddy:808: group 0, [ 22.077865][ T305] EXT4-fs (loop2): i_reserved_data_blocks=2 [ 22.083639][ T307] block bitmap and bg descriptor inconsistent: 0 vs 150994969 free clusters [ 22.091812][ T302] EXT4-fs (loop1): Total free blocks count 0 [ 22.099089][ T300] EXT4-fs (loop4): Free/Dirty block details [ 22.106034][ T302] EXT4-fs (loop1): Free/Dirty block details [ 22.106045][ T302] EXT4-fs (loop1): free_blocks=2415919504 [ 22.106050][ T302] EXT4-fs (loop1): dirty_blocks=32 [pid 306] chdir("./file1" [pid 323] +++ killed by SIGBUS +++ [pid 306] <... chdir resumed>) = 0 [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 300] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000380} --- [pid 322] <... futex resumed>) = ? [pid 322] +++ killed by SIGBUS +++ [ 22.106056][ T302] EXT4-fs (loop1): Block reservation details [ 22.106062][ T302] EXT4-fs (loop1): i_reserved_data_blocks=2 [ 22.106305][ T307] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 22.113528][ T300] EXT4-fs (loop4): free_blocks=2415919504 [ 22.117784][ T307] EXT4-fs (loop0): This should not happen!! Data will be lost [ 22.117784][ T307] [ 22.124692][ T300] EXT4-fs (loop4): dirty_blocks=32 [pid 306] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 300] +++ killed by SIGBUS +++ [pid 299] +++ killed by SIGBUS +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=299, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=17} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 293] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(3, 0x55556a06b730 /* 4 entries */, 32768) = 112 [pid 293] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] unlink("./0/binderfs") = 0 [pid 293] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 306] ioctl(4, LOOP_CLR_FD [pid 305] +++ killed by SIGBUS +++ [pid 302] +++ killed by SIGBUS +++ [pid 295] +++ killed by SIGBUS +++ [pid 294] +++ killed by SIGBUS +++ [pid 306] <... ioctl resumed>) = 0 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=295, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=13} --- [pid 290] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=294, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=14} --- [pid 306] close(4) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 290] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 306] <... futex resumed>) = 1 [pid 291] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 290] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 306] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 291] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 290] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 291] <... openat resumed>) = 3 [pid 290] <... openat resumed>) = 3 [pid 291] newfstatat(3, "", [pid 290] newfstatat(3, "", [pid 291] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 290] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 291] getdents64(3, [pid 290] getdents64(3, [pid 291] <... getdents64 resumed>0x55556a06b730 /* 4 entries */, 32768) = 112 [pid 290] <... getdents64 resumed>0x55556a06b730 /* 4 entries */, 32768) = 112 [pid 291] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 290] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 291] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 290] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 291] newfstatat(AT_FDCWD, "./0/binderfs", [pid 290] newfstatat(AT_FDCWD, "./0/binderfs", [pid 291] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 290] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 291] unlink("./0/binderfs" [pid 290] unlink("./0/binderfs" [pid 291] <... unlink resumed>) = 0 [pid 290] <... unlink resumed>) = 0 [pid 291] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 290] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = 1 [pid 306] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... open resumed>) = 4 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 297] <... futex resumed>) = 0 [pid 306] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... open resumed>) = 5 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] creat("./bus", 000 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... creat resumed>) = 6 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] pwrite64(6, "+", 1, 0 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... pwrite64 resumed>) = 1 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] open("./bus", O_RDONLY [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... open resumed>) = 7 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] copy_file_range(7, NULL, 5, [65536], 6, 0 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... copy_file_range resumed>) = 1 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] futex(0x7fb8e85df71c, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = 0 [pid 306] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84d2000 [pid 297] mprotect(0x7fb8e84d3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 297] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 297] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e84f2990, parent_tid=0x7fb8e84f2990, exit_signal=0, stack=0x7fb8e84d2000, stack_size=0x20300, tls=0x7fb8e84f26c0} => {parent_tid=[329]}, 88) = 329 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] futex(0x7fb8e85df718, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7fb8e85df71c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 329 attached [pid 329] set_robust_list(0x7fb8e84f29a0, 24) = 0 [pid 329] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 329] mmap(0x20000000, 6291456, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0x7ffff0, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1< [pid 297] <... futex resumed>) = 0 [pid 297] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = 1 [pid 329] <... futex resumed>) = 1 [pid 297] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 22.172939][ T307] EXT4-fs (loop0): Total free blocks count 0 [ 22.178772][ T300] EXT4-fs (loop4): This should not happen!! Data will be lost [ 22.178772][ T300] [ 22.189976][ T302] EXT4-fs (loop1): This should not happen!! Data will be lost [ 22.189976][ T302] [ 22.216821][ T307] EXT4-fs (loop0): Free/Dirty block details [ 22.239885][ T306] EXT4-fs error (device loop3): ext4_mb_generate_buddy:808: group 0, [ 22.242118][ T307] EXT4-fs (loop0): free_blocks=2415919504 [ 22.250740][ T306] block bitmap and bg descriptor inconsistent: 0 vs 150994969 free clusters [pid 329] futex(0x7fb8e85df718, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000380} --- [pid 297] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 328] <... futex resumed>) = ? [pid 328] +++ killed by SIGBUS +++ [ 22.251385][ T306] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 [ 22.261306][ T307] EXT4-fs (loop0): dirty_blocks=32 [ 22.267778][ T306] EXT4-fs (loop3): This should not happen!! Data will be lost [ 22.267778][ T306] [ 22.276113][ T307] EXT4-fs (loop0): Block reservation details [ 22.281522][ T306] EXT4-fs (loop3): Total free blocks count 0 [ 22.288436][ T307] EXT4-fs (loop0): i_reserved_data_blocks=2 [ 22.300832][ T306] EXT4-fs (loop3): Free/Dirty block details [pid 307] +++ killed by SIGBUS +++ [pid 298] +++ killed by SIGBUS +++ [pid 293] <... umount2 resumed>) = 0 [pid 293] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 293] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 293] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 293] getdents64(4, 0x55556a073770 /* 2 entries */, 32768) = 48 [pid 293] getdents64(4, [pid 289] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=298, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=21} --- [pid 293] <... getdents64 resumed>0x55556a073770 /* 0 entries */, 32768) = 0 [pid 293] close(4) = 0 [pid 293] rmdir("./0/file1") = 0 [pid 293] getdents64(3, 0x55556a06b730 /* 0 entries */, 32768) = 0 [pid 293] close(3) = 0 [pid 293] rmdir("./0") = 0 [pid 293] mkdir("./1", 0777) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 289] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 306] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000380} --- [pid 289] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 289] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 329] <... futex resumed>) = ? [pid 289] <... openat resumed>) = 3 [pid 289] newfstatat(3, "", [pid 329] +++ killed by SIGBUS +++ [pid 289] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 289] getdents64(3, 0x55556a06b730 /* 4 entries */, 32768) = 112 [pid 289] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 289] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 289] unlink("./0/binderfs") = 0 [ 22.319133][ T307] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 32 with max blocks 1 with error 28 [ 22.320711][ T306] EXT4-fs (loop3): free_blocks=2415919504 [ 22.326397][ T307] EXT4-fs (loop0): This should not happen!! Data will be lost [ 22.326397][ T307] [ 22.350596][ T306] EXT4-fs (loop3): dirty_blocks=32 [ 22.371191][ T306] EXT4-fs (loop3): Block reservation details [ 22.377174][ T306] EXT4-fs (loop3): i_reserved_data_blocks=2 [pid 289] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 290] <... umount2 resumed>) = 0 [pid 290] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 290] newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 290] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 290] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 290] newfstatat(4, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 290] getdents64(4, 0x55556a073770 /* 2 entries */, 32768) = 48 [pid 290] getdents64(4, 0x55556a073770 /* 0 entries */, 32768) = 0 [pid 290] close(4) = 0 [pid 290] rmdir("./0/file1") = 0 [pid 290] getdents64(3, 0x55556a06b730 /* 0 entries */, 32768) = 0 [pid 290] close(3) = 0 [pid 290] rmdir("./0") = 0 [pid 290] mkdir("./1", 0777) = 0 [pid 290] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 306] +++ killed by SIGBUS +++ [pid 297] +++ killed by SIGBUS +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=297, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=16} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 292] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 292] getdents64(3, 0x55556a06b730 /* 4 entries */, 32768) = 112 [pid 292] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 292] unlink("./0/binderfs") = 0 [ 22.386637][ T306] EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 32 with max blocks 1 with error 28 [ 22.398780][ T306] EXT4-fs (loop3): This should not happen!! Data will be lost [ 22.398780][ T306] [pid 292] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 293] <... openat resumed>) = 3 [pid 290] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 291] <... umount2 resumed>) = 0 [pid 293] close(3 [pid 291] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 290] ioctl(3, LOOP_CLR_FD [pid 293] <... close resumed>) = 0 [pid 291] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 290] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 289] <... umount2 resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] newfstatat(AT_FDCWD, "./0/file1", [pid 290] close(3 [pid 291] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 293] <... clone resumed>, child_tidptr=0x55556a06a690) = 330 [pid 291] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 291] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 330 attached ) = 4 [pid 289] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 330] set_robust_list(0x55556a06a6a0, 24 [pid 291] newfstatat(4, "", [pid 330] <... set_robust_list resumed>) = 0 [pid 289] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 291] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 289] newfstatat(AT_FDCWD, "./0/file1", [pid 291] getdents64(4, [pid 289] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 330] chdir("./1" [pid 291] <... getdents64 resumed>0x55556a073770 /* 2 entries */, 32768) = 48 [pid 289] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 330] <... chdir resumed>) = 0 [pid 330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 330] setpgid(0, 0) = 0 [pid 330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 291] getdents64(4, [pid 289] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 330] write(3, "1000", 4) = 4 [pid 330] close(3) = 0 [pid 330] symlink("/dev/binderfs", "./binderfs") = 0 [pid 291] <... getdents64 resumed>0x55556a073770 /* 0 entries */, 32768) = 0 [pid 289] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORYexecuting program [pid 291] close(4 [pid 330] write(1, "executing program\n", 18) = 18 [pid 330] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 330] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 330] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 330] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 330] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 330] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 330] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} => {parent_tid=[331]}, 88) = 331 [pid 330] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 330] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 330] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 331 attached [pid 331] set_robust_list(0x7fb8e85139a0, 24) = 0 [pid 331] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 331] memfd_create("syzkaller", 0) = 3 [pid 331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 291] <... close resumed>) = 0 [pid 289] <... openat resumed>) = 4 [pid 291] rmdir("./0/file1" [pid 289] newfstatat(4, "", [pid 291] <... rmdir resumed>) = 0 [pid 289] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 291] getdents64(3, [pid 289] getdents64(4, [pid 291] <... getdents64 resumed>0x55556a06b730 /* 0 entries */, 32768) = 0 [pid 289] <... getdents64 resumed>0x55556a073770 /* 2 entries */, 32768) = 48 [pid 291] close(3 [pid 289] getdents64(4, [pid 291] <... close resumed>) = 0 [pid 289] <... getdents64 resumed>0x55556a073770 /* 0 entries */, 32768) = 0 [pid 291] rmdir("./0" [pid 289] close(4 [pid 291] <... rmdir resumed>) = 0 [pid 289] <... close resumed>) = 0 [pid 291] mkdir("./1", 0777 [pid 289] rmdir("./0/file1" [pid 291] <... mkdir resumed>) = 0 [pid 289] <... rmdir resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 289] getdents64(3, 0x55556a06b730 /* 0 entries */, 32768) = 0 [pid 289] close(3) = 0 [pid 289] rmdir("./0") = 0 [pid 289] mkdir("./1", 0777) = 0 [pid 289] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 331] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 331] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 331] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 292] <... umount2 resumed>) = 0 [pid 290] <... close resumed>) = 0 [pid 290] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 332 [pid 331] <... openat resumed>) = 4 [pid 331] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 332 attached [pid 332] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 332] chdir("./1") = 0 [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 332] setpgid(0, 0) = 0 [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 332] write(3, "1000", 4) = 4 [pid 332] close(3 [pid 292] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 292] newfstatat(AT_FDCWD, "./0/file1", executing program [pid 291] <... openat resumed>) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a06a690) = 334 [pid 331] <... ioctl resumed>) = 0 [pid 331] close(3) = 0 [pid 331] close(4 [pid 332] <... close resumed>) = 0 [pid 332] symlink("/dev/binderfs", "./binderfs") = 0 [pid 332] write(1, "executing program\n", 18) = 18 [pid 332] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 332] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 332] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 332] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 332] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} => {parent_tid=[335]}, 88) = 335 [pid 332] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 332] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 334 attached [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 334] set_robust_list(0x55556a06a6a0, 24 [pid 292] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 334] <... set_robust_list resumed>) = 0 [pid 292] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 292] openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 334] chdir("./1" [pid 292] <... openat resumed>) = 4 [pid 292] newfstatat(4, "", [pid 334] <... chdir resumed>) = 0 [pid 292] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 334] setpgid(0, 0) = 0 [pid 292] getdents64(4, 0x55556a073770 /* 2 entries */, 32768) = 48 [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 292] getdents64(4, ./strace-static-x86_64: Process 335 attached 0x55556a073770 /* 0 entries */, 32768) = 0 [pid 292] close(4) = 0 [pid 292] rmdir("./0/file1" [pid 334] <... openat resumed>) = 3 [pid 334] write(3, "1000", 4 [pid 292] <... rmdir resumed>) = 0 executing program [pid 334] <... write resumed>) = 4 [pid 292] getdents64(3, [pid 335] set_robust_list(0x7fb8e85139a0, 24 [pid 292] <... getdents64 resumed>0x55556a06b730 /* 0 entries */, 32768) = 0 [pid 292] close(3) = 0 [pid 292] rmdir("./0" [pid 334] close(3) = 0 [pid 334] symlink("/dev/binderfs", "./binderfs" [pid 292] <... rmdir resumed>) = 0 [pid 334] <... symlink resumed>) = 0 [pid 334] write(1, "executing program\n", 18) = 18 [pid 334] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, [pid 292] mkdir("./1", 0777 [pid 334] <... rt_sigaction resumed>NULL, 8) = 0 [pid 334] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 334] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 292] <... mkdir resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 334] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 334] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0} => {parent_tid=[336]}, 88) = 336 ./strace-static-x86_64: Process 336 attached [pid 335] <... set_robust_list resumed>) = 0 [pid 334] rt_sigprocmask(SIG_SETMASK, [], [pid 331] <... close resumed>) = 0 [pid 336] set_robust_list(0x7fb8e85139a0, 24 [pid 331] mkdir("./file1", 0777 [pid 336] <... set_robust_list resumed>) = 0 [pid 331] <... mkdir resumed>) = 0 [pid 331] mount("/dev/loop4", "./file1", "ext4", 0, ",errors=continue" [pid 336] rt_sigprocmask(SIG_SETMASK, [], [pid 334] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 334] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 334] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 335] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 335] memfd_create("syzkaller", 0) = 3 [pid 336] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 336] memfd_create("syzkaller", 0) = 3 [pid 336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 335] <... write resumed>) = 1048576 [pid 335] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 335] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 336] <... write resumed>) = 1048576 [pid 336] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 336] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 292] <... openat resumed>) = 3 [pid 289] <... openat resumed>) = 3 [pid 292] ioctl(3, LOOP_CLR_FD [pid 289] ioctl(3, LOOP_CLR_FD [pid 292] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 289] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 292] close(3 [pid 289] close(3 [pid 292] <... close resumed>) = 0 [pid 289] <... close resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 289] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... clone resumed>, child_tidptr=0x55556a06a690) = 337 [pid 289] <... clone resumed>, child_tidptr=0x55556a06a690) = 338 ./strace-static-x86_64: Process 338 attached [pid 338] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 338] chdir("./1") = 0 [pid 338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 338] setpgid(0, 0) = 0 [pid 338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 338] write(3, "1000", 4) = 4 [pid 338] close(3) = 0 [pid 338] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 338] write(1, "executing program\n", 18) = 18 [pid 338] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 338] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 338] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 338] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 338] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 338] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0}./strace-static-x86_64: Process 337 attached [pid 337] set_robust_list(0x55556a06a6a0, 24) = 0 [pid 337] chdir("./1" [pid 338] <... clone3 resumed> => {parent_tid=[339]}, 88) = 339 [pid 338] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 337] <... chdir resumed>) = 0 [pid 338] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 338] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 337] setpgid(0, 0) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 337] write(3, "1000", 4) = 4 [pid 337] close(3) = 0 [pid 337] symlink("/dev/binderfs", "./binderfs" [pid 335] <... openat resumed>) = 4 [pid 335] ioctl(4, LOOP_SET_FD, 3 [pid 336] <... openat resumed>) = 4 [pid 336] ioctl(4, LOOP_SET_FD, 3 [pid 337] <... symlink resumed>) = 0 executing program [pid 337] write(1, "executing program\n", 18) = 18 [pid 337] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] rt_sigaction(SIGRT_1, {sa_handler=0x7fb8e857d160, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb8e856e310}, NULL, 8) = 0 [pid 337] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fb8e84f3000 [pid 337] mprotect(0x7fb8e84f4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 337] rt_sigprocmask(SIG_BLOCK, ~[], ./strace-static-x86_64: Process 339 attached [], 8) = 0 [pid 337] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fb8e8513990, parent_tid=0x7fb8e8513990, exit_signal=0, stack=0x7fb8e84f3000, stack_size=0x20300, tls=0x7fb8e85136c0}./strace-static-x86_64: Process 342 attached [pid 339] set_robust_list(0x7fb8e85139a0, 24 [pid 337] <... clone3 resumed> => {parent_tid=[342]}, 88) = 342 [pid 337] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 337] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 339] <... set_robust_list resumed>) = 0 [pid 342] set_robust_list(0x7fb8e85139a0, 24 [pid 339] rt_sigprocmask(SIG_SETMASK, [], [pid 337] futex(0x7fb8e85df70c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 335] <... ioctl resumed>) = 0 [pid 335] close(3) = 0 [pid 339] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 335] close(4 [pid 342] <... set_robust_list resumed>) = 0 [pid 342] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 342] memfd_create("syzkaller", 0) = 3 [pid 342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb8e00f3000 [pid 342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 339] memfd_create("syzkaller", 0 [pid 331] <... mount resumed>) = 0 [pid 339] <... memfd_create resumed>) = 3 [pid 331] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 339] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 336] <... ioctl resumed>) = 0 [pid 342] <... write resumed>) = 1048576 [pid 342] munmap(0x7fb8e00f3000, 138412032) = 0 [pid 342] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 342] ioctl(4, LOOP_SET_FD, 3 [pid 339] <... mmap resumed>) = 0x7fb8e00f3000 [pid 336] close(3 [pid 339] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 336] <... close resumed>) = 0 [pid 336] close(4 [pid 339] <... write resumed>) = 1048576 [pid 339] munmap(0x7fb8e00f3000, 138412032 [pid 331] <... openat resumed>) = 3 [pid 339] <... munmap resumed>) = 0 [pid 331] chdir("./file1" [pid 339] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 331] <... chdir resumed>) = 0 [pid 331] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 335] <... close resumed>) = 0 [pid 335] mkdir("./file1", 0777) = 0 [pid 335] mount("/dev/loop1", "./file1", "ext4", 0, ",errors=continue" [pid 342] <... ioctl resumed>) = 0 [pid 342] close(3) = 0 [pid 342] close(4 [pid 336] <... close resumed>) = 0 [pid 336] mkdir("./file1", 0777) = 0 [pid 336] mount("/dev/loop2", "./file1", "ext4", 0, ",errors=continue" [pid 339] <... openat resumed>) = 4 [pid 339] ioctl(4, LOOP_SET_FD, 3 [pid 331] <... openat resumed>) = 4 [pid 339] <... ioctl resumed>) = 0 [pid 339] close(3 [pid 331] ioctl(4, LOOP_CLR_FD [pid 339] <... close resumed>) = 0 [ 22.603106][ T331] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue [pid 339] close(4 [pid 336] <... mount resumed>) = 0 [pid 336] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 335] <... mount resumed>) = 0 [pid 336] <... openat resumed>) = 3 [pid 335] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 336] chdir("./file1" [pid 335] <... openat resumed>) = 3 [pid 336] <... chdir resumed>) = 0 [pid 336] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 335] chdir("./file1") = 0 [pid 335] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 342] <... close resumed>) = 0 [pid 342] mkdir("./file1", 0777) = 0 [ 22.658400][ T336] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue [ 22.658436][ T335] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [pid 342] mount("/dev/loop3", "./file1", "ext4", 0, ",errors=continue" [pid 339] <... close resumed>) = 0 [pid 331] <... ioctl resumed>) = 0 [pid 331] close(4) = 0 [pid 331] futex(0x7fb8e85df70c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 330] <... futex resumed>) = 0 [pid 331] futex(0x7fb8e85df708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 330] futex(0x7fb8e85df708, FUTEX_WAKE_PRIVATE, 1000000