./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3955701909 <...> Warning: Permanently added '10.128.1.112' (ECDSA) to the list of known hosts. execve("./syz-executor3955701909", ["./syz-executor3955701909"], 0x7ffed0aebfe0 /* 10 vars */) = 0 brk(NULL) = 0x5555570a1000 brk(0x5555570a1d00) = 0x5555570a1d00 arch_prctl(ARCH_SET_FS, 0x5555570a13c0) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3955701909", 4096) = 28 brk(0x5555570c2d00) = 0x5555570c2d00 brk(0x5555570c3000) = 0x5555570c3000 mprotect(0x7f10e4217000, 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=0x7f10e41670a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f10e4167db0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f10e41670a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f10e4167db0}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3615 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3616 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3617 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3618 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3619 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3620 ./strace-static-x86_64: Process 3619 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3615 attached ./strace-static-x86_64: Process 3616 attached ./strace-static-x86_64: Process 3618 attached [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3620 attached ./strace-static-x86_64: Process 3617 attached [pid 3616] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... openat resumed>) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3618] <... openat resumed>) = 3 [pid 3619] close(3) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3621 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3622 ./strace-static-x86_64: Process 3622 attached ./strace-static-x86_64: Process 3621 attached [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3622] setpgid(0, 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3622] <... setpgid resumed>) = 0 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] <... prctl resumed>) = 0 [pid 3621] setpgid(0, 0) = 0 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3621] <... openat resumed>) = 3 [pid 3621] write(3, "1000", 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3620] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3615] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] close(3 [pid 3615] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3617] <... openat resumed>) = 3 [pid 3620] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3622] <... openat resumed>) = 3 [pid 3621] <... write resumed>) = 4 [pid 3622] write(3, "1000", 4 [pid 3621] close(3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3623 [pid 3622] <... write resumed>) = 4 [pid 3621] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3624 [pid 3622] close(3 [pid 3621] memfd_create("syzkaller", 0 [pid 3617] close(3./strace-static-x86_64: Process 3624 attached ./strace-static-x86_64: Process 3623 attached [pid 3622] <... close resumed>) = 0 [pid 3621] <... memfd_create resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3625 [pid 3617] <... close resumed>) = 0 ./strace-static-x86_64: Process 3625 attached [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3622] memfd_create("syzkaller", 0 [pid 3621] ftruncate(3, 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3624] <... prctl resumed>) = 0 [pid 3623] <... prctl resumed>) = 0 [pid 3622] <... memfd_create resumed>) = 3 [pid 3621] <... ftruncate resumed>) = 0 [pid 3625] <... prctl resumed>) = 0 [pid 3624] setpgid(0, 0 [pid 3623] setpgid(0, 0 [pid 3622] ftruncate(3, 0 [pid 3621] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3625] setpgid(0, 0 [pid 3624] <... setpgid resumed>) = 0 [pid 3623] <... setpgid resumed>) = 0 [pid 3622] <... ftruncate resumed>) = 0 [pid 3621] <... openat resumed>) = 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3626 ./strace-static-x86_64: Process 3626 attached [pid 3625] <... setpgid resumed>) = 0 [pid 3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 52.422639][ T27] audit: type=1400 audit(1665150633.196:75): avc: denied { execmem } for pid=3614 comm="syz-executor395" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 52.445403][ T27] audit: type=1400 audit(1665150633.216:76): avc: denied { read write } for pid=3619 comm="syz-executor395" name="loop4" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 3622] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3621] ioctl(4, LOOP_SET_FD, 3 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3624] <... openat resumed>) = 3 [pid 3623] <... openat resumed>) = 3 [pid 3622] <... openat resumed>) = 4 [pid 3621] <... ioctl resumed>) = 0 [pid 3626] <... prctl resumed>) = 0 [pid 3625] <... openat resumed>) = 3 [pid 3624] write(3, "1000", 4 [pid 3623] write(3, "1000", 4 [pid 3622] ioctl(4, LOOP_SET_FD, 3 [pid 3621] mkdir("./file0", 0777 [pid 3626] setpgid(0, 0 [pid 3625] write(3, "1000", 4 [pid 3624] <... write resumed>) = 4 [pid 3623] <... write resumed>) = 4 [pid 3622] <... ioctl resumed>) = 0 [pid 3621] <... mkdir resumed>) = 0 [pid 3626] <... setpgid resumed>) = 0 [pid 3625] <... write resumed>) = 4 [pid 3624] close(3 [pid 3622] mkdir("./file0", 0777 [pid 3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3624] <... close resumed>) = 0 [pid 3622] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] pipe2( [pid 3626] <... openat resumed>) = 3 [pid 3624] memfd_create("syzkaller", 0 [pid 3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3626] write(3, "1000", 4 [pid 3624] <... memfd_create resumed>) = 3 [pid 3622] pipe2( [pid 3621] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3626] <... write resumed>) = 4 [pid 3624] ftruncate(3, 0 [pid 3622] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] <... write resumed>) = 21 [pid 3626] close(3 [pid 3624] <... ftruncate resumed>) = 0 [pid 3622] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3626] <... close resumed>) = 0 [pid 3625] close(3 [pid 3624] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3623] close(3 [pid 3622] <... write resumed>) = 21 [pid 3626] memfd_create("syzkaller", 0 [pid 3625] <... close resumed>) = 0 [pid 3624] <... openat resumed>) = 4 [pid 3623] <... close resumed>) = 0 [pid 3622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3626] <... memfd_create resumed>) = 3 [pid 3625] memfd_create("syzkaller", 0 [pid 3624] ioctl(4, LOOP_SET_FD, 3 [pid 3623] memfd_create("syzkaller", 0 [pid 3626] ftruncate(3, 0 [pid 3625] <... memfd_create resumed>) = 3 [pid 3623] <... memfd_create resumed>) = 3 [pid 3626] <... ftruncate resumed>) = 0 [pid 3625] ftruncate(3, 0 [pid 3624] <... ioctl resumed>) = 0 [pid 3623] ftruncate(3, 0 [pid 3626] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3625] <... ftruncate resumed>) = 0 [pid 3624] mkdir("./file0", 0777 [pid 3623] <... ftruncate resumed>) = 0 [pid 3626] <... openat resumed>) = 4 [pid 3625] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3624] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3623] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3626] ioctl(4, LOOP_SET_FD, 3 [pid 3625] <... openat resumed>) = 4 [pid 3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3623] <... openat resumed>) = 4 [pid 3626] <... ioctl resumed>) = 0 [pid 3625] ioctl(4, LOOP_SET_FD, 3 [pid 3624] pipe2( [pid 3623] ioctl(4, LOOP_SET_FD, 3 [pid 3626] mkdir("./file0", 0777 [pid 3625] <... ioctl resumed>) = 0 [pid 3624] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3626] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3625] mkdir("./file0", 0777 [pid 3624] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3623] <... ioctl resumed>) = 0 [pid 3626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3625] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3624] <... write resumed>) = 21 [ 52.514446][ T27] audit: type=1400 audit(1665150633.226:77): avc: denied { open } for pid=3615 comm="syz-executor395" path="/dev/loop0" dev="devtmpfs" ino=644 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 3623] mkdir("./file0", 0777 [pid 3626] pipe2( [pid 3625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3623] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3626] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3625] pipe2( [pid 3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3626] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3625] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3623] pipe2( [pid 3626] <... write resumed>) = 21 [pid 3625] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3623] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3625] <... write resumed>) = 21 [pid 3623] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3625] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3623] <... write resumed>) = 21 [ 52.584593][ T27] audit: type=1400 audit(1665150633.226:78): avc: denied { ioctl } for pid=3619 comm="syz-executor395" path="/dev/loop4" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 3623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... mount resumed>) = -1 EIO (Input/output error) [pid 3621] exit_group(0) = ? [pid 3621] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3628 ./strace-static-x86_64: Process 3628 attached [ 52.614400][ T27] audit: type=1400 audit(1665150633.306:79): avc: denied { mounton } for pid=3621 comm="syz-executor395" path="/root/file0" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3628] setpgid(0, 0) = 0 [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3628] write(3, "1000", 4) = 4 [pid 3628] close(3) = 0 [pid 3628] memfd_create("syzkaller", 0) = 3 [pid 3628] ftruncate(3, 0) = 0 [pid 3628] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3628] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3628] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3628] pipe2([5, 6], 0) = 0 [pid 3628] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3624] <... mount resumed>) = -1 EIO (Input/output error) [pid 3624] exit_group(0) = ? [pid 3624] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3631 ./strace-static-x86_64: Process 3631 attached [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3631] setpgid(0, 0) = 0 [pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3631] write(3, "1000", 4) = 4 [pid 3631] close(3) = 0 [pid 3631] memfd_create("syzkaller", 0) = 3 [pid 3625] <... mount resumed>) = -1 EIO (Input/output error) [pid 3631] ftruncate(3, 0 [pid 3625] exit_group(0 [pid 3631] <... ftruncate resumed>) = 0 [pid 3625] <... exit_group resumed>) = ? [pid 3631] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3625] +++ exited with 0 +++ [pid 3631] <... openat resumed>) = 4 [pid 3631] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3631] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3631] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3631] pipe2([5, 6], 0) = 0 [pid 3631] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3623] <... mount resumed>) = -1 EIO (Input/output error) [pid 3623] exit_group(0) = ? [pid 3623] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3622] <... mount resumed>) = -1 EIO (Input/output error) [pid 3622] exit_group(0) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3632 [pid 3622] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3632 attached [pid 3615] <... ioctl resumed>) = 0 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] close(3 [pid 3632] <... prctl resumed>) = 0 [pid 3632] setpgid(0, 0 [pid 3615] <... close resumed>) = 0 [pid 3632] <... setpgid resumed>) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3632] <... openat resumed>) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3633 ./strace-static-x86_64: Process 3633 attached [pid 3632] close(3) = 0 [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3632] memfd_create("syzkaller", 0 [pid 3633] <... prctl resumed>) = 0 [pid 3633] setpgid(0, 0 [pid 3632] <... memfd_create resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3633] <... setpgid resumed>) = 0 [pid 3632] ftruncate(3, 0 [pid 3619] close(3 [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3632] <... ftruncate resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3633] <... openat resumed>) = 3 [pid 3632] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3633] write(3, "1000", 4 [pid 3632] <... openat resumed>) = 4 [pid 3633] <... write resumed>) = 4 [pid 3632] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3634 ./strace-static-x86_64: Process 3634 attached [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3633] close(3 [pid 3632] <... ioctl resumed>) = 0 [pid 3626] <... mount resumed>) = -1 EIO (Input/output error) [pid 3634] <... prctl resumed>) = 0 [pid 3633] <... close resumed>) = 0 [pid 3632] mkdir("./file0", 0777 [pid 3626] exit_group(0 [pid 3634] setpgid(0, 0 [pid 3633] memfd_create("syzkaller", 0 [pid 3632] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3626] <... exit_group resumed>) = ? [pid 3634] <... setpgid resumed>) = 0 [pid 3633] <... memfd_create resumed>) = 3 [pid 3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3626] +++ exited with 0 +++ [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3633] ftruncate(3, 0 [pid 3632] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3634] <... openat resumed>) = 3 [pid 3634] write(3, "1000", 4) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3634] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3634] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3634] memfd_create("syzkaller", 0 [pid 3633] <... ftruncate resumed>) = 0 [pid 3632] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3634] <... memfd_create resumed>) = 3 [pid 3633] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3632] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3634] ftruncate(3, 0 [pid 3633] <... openat resumed>) = 4 [pid 3632] <... write resumed>) = 21 [pid 3634] <... ftruncate resumed>) = 0 [pid 3633] ioctl(4, LOOP_SET_FD, 3 [pid 3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3634] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3633] <... ioctl resumed>) = 0 [pid 3634] <... openat resumed>) = 4 [pid 3633] mkdir("./file0", 0777 [pid 3634] ioctl(4, LOOP_SET_FD, 3 [pid 3633] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3634] <... ioctl resumed>) = 0 [pid 3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3634] mkdir("./file0", 0777 [pid 3633] pipe2( [pid 3634] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3633] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3634] pipe2([5, 6], 0) = 0 [pid 3634] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3633] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3628] <... mount resumed>) = -1 EIO (Input/output error) [pid 3628] exit_group(0) = ? [pid 3628] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... ioctl resumed>) = 0 [pid 3633] <... write resumed>) = 21 [pid 3617] close(3 [pid 3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3635 ./strace-static-x86_64: Process 3635 attached [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setpgid(0, 0) = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1000", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] memfd_create("syzkaller", 0) = 3 [pid 3635] ftruncate(3, 0) = 0 [pid 3635] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3635] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3635] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3635] pipe2([5, 6], 0) = 0 [pid 3635] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3631] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3631] exit_group(0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3636 [pid 3631] <... exit_group resumed>) = ? [pid 3631] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 3636 attached [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3636] setpgid(0, 0 [pid 3616] <... openat resumed>) = 3 [pid 3636] <... setpgid resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3636] write(3, "1000", 4) = 4 [pid 3636] close(3) = 0 [pid 3636] memfd_create("syzkaller", 0) = 3 [pid 3636] ftruncate(3, 0) = 0 [pid 3636] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3636] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3636] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3636] pipe2([5, 6], 0) = 0 [pid 3636] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3637 ./strace-static-x86_64: Process 3637 attached [pid 3632] <... mount resumed>) = -1 EIO (Input/output error) [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3637] setpgid(0, 0) = 0 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3637] write(3, "1000", 4) = 4 [pid 3637] close(3 [pid 3632] exit_group(0 [pid 3637] <... close resumed>) = 0 [pid 3632] <... exit_group resumed>) = ? [pid 3637] memfd_create("syzkaller", 0) = 3 [pid 3632] +++ exited with 0 +++ [pid 3637] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3637] <... ftruncate resumed>) = 0 [pid 3637] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3637] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3637] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 3637] pipe2( [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3637] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3637] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3633] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3633] exit_group(0 [pid 3620] close(3 [pid 3633] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3633] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3638 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3638 attached [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] memfd_create("syzkaller", 0) = 3 [pid 3638] ftruncate(3, 0) = 0 [pid 3638] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3638] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3638] pipe2([5, 6], 0) = 0 [pid 3638] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... ioctl resumed>) = 0 [pid 3638] <... write resumed>) = 21 [pid 3615] close(3 [pid 3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3639 [pid 3634] <... mount resumed>) = -1 EIO (Input/output error) [pid 3634] exit_group(0) = ? ./strace-static-x86_64: Process 3639 attached [pid 3634] +++ exited with 0 +++ [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3639] <... prctl resumed>) = 0 [pid 3639] setpgid(0, 0) = 0 [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3639] write(3, "1000", 4) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3639] close(3 [pid 3619] <... openat resumed>) = 3 [pid 3639] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3639] memfd_create("syzkaller", 0) = 3 [pid 3639] ftruncate(3, 0) = 0 [pid 3639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3639] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3639] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3639] pipe2([5, 6], 0) = 0 [pid 3639] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3635] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3635] exit_group(0 [pid 3619] close(3 [pid 3635] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3635] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3640 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 ./strace-static-x86_64: Process 3640 attached [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3640] setpgid(0, 0) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3640] write(3, "1000", 4) = 4 [pid 3640] close(3) = 0 [pid 3640] memfd_create("syzkaller", 0) = 3 [pid 3640] ftruncate(3, 0) = 0 [pid 3640] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3641 [pid 3640] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3640] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3641 attached [pid 3640] pipe2( [pid 3636] <... mount resumed>) = -1 EIO (Input/output error) [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3640] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3636] exit_group(0 [pid 3641] <... prctl resumed>) = 0 [pid 3640] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3636] <... exit_group resumed>) = ? [pid 3641] setpgid(0, 0 [pid 3640] <... write resumed>) = 21 [pid 3636] +++ exited with 0 +++ [pid 3641] <... setpgid resumed>) = 0 [pid 3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3641] write(3, "1000", 4) = 4 [pid 3641] close(3) = 0 [pid 3641] memfd_create("syzkaller", 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3641] <... memfd_create resumed>) = 3 [pid 3641] ftruncate(3, 0) = 0 [pid 3641] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3641] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3641] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3641] pipe2([5, 6], 0) = 0 [pid 3641] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3638] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3638] exit_group(0 [pid 3618] close(3 [pid 3638] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3638] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3643 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3643 attached [pid 3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3643] setpgid(0, 0) = 0 [pid 3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3643] write(3, "1000", 4) = 4 [pid 3643] close(3 [pid 3620] <... ioctl resumed>) = 0 [pid 3643] <... close resumed>) = 0 [pid 3620] close(3 [pid 3643] memfd_create("syzkaller", 0 [pid 3620] <... close resumed>) = 0 [pid 3643] <... memfd_create resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3643] ftruncate(3, 0) = 0 [pid 3643] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3644 ./strace-static-x86_64: Process 3644 attached [pid 3643] <... openat resumed>) = 4 [pid 3643] ioctl(4, LOOP_SET_FD, 3 [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3643] <... ioctl resumed>) = 0 [pid 3643] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3643] pipe2( [pid 3644] <... prctl resumed>) = 0 [pid 3643] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3644] setpgid(0, 0 [pid 3643] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3644] <... setpgid resumed>) = 0 [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3644] write(3, "1000", 4) = 4 [pid 3644] close(3) = 0 [pid 3644] memfd_create("syzkaller", 0) = 3 [pid 3644] ftruncate(3, 0) = 0 [pid 3644] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3644] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3637] <... mount resumed>) = -1 EIO (Input/output error) [pid 3644] pipe2([5, 6], 0) = 0 [pid 3637] exit_group(0 [pid 3644] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3637] <... exit_group resumed>) = ? [pid 3644] <... write resumed>) = 21 [pid 3637] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3645 attached , child_tidptr=0x5555570a1690) = 3645 [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3639] <... mount resumed>) = -1 EIO (Input/output error) [pid 3639] exit_group(0 [pid 3645] <... prctl resumed>) = 0 [pid 3639] <... exit_group resumed>) = ? [pid 3645] setpgid(0, 0) = 0 [pid 3639] +++ exited with 0 +++ [pid 3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3645] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3645] write(3, "1000", 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3645] <... write resumed>) = 4 [pid 3645] close(3) = 0 [pid 3645] memfd_create("syzkaller", 0) = 3 [pid 3645] ftruncate(3, 0) = 0 [pid 3645] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3645] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3645] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3645] pipe2([5, 6], 0) = 0 [pid 3645] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3640] <... mount resumed>) = -1 EIO (Input/output error) [pid 3640] exit_group(0) = ? [pid 3640] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] close(3) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3646 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3647 [pid 3644] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3647 attached [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3644] exit_group(0) = ? [pid 3644] +++ exited with 0 +++ [pid 3647] <... prctl resumed>) = 0 [pid 3647] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3647] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 3646 attached [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3647] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3646] <... prctl resumed>) = 0 [pid 3646] setpgid(0, 0) = 0 [pid 3647] write(3, "1000", 4 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3647] <... write resumed>) = 4 [pid 3646] <... openat resumed>) = 3 [pid 3647] close(3 [pid 3646] write(3, "1000", 4) = 4 [pid 3646] close(3) = 0 [pid 3646] memfd_create("syzkaller", 0) = 3 [pid 3646] ftruncate(3, 0) = 0 [pid 3647] <... close resumed>) = 0 [pid 3646] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3647] memfd_create("syzkaller", 0 [pid 3646] <... openat resumed>) = 4 [pid 3647] <... memfd_create resumed>) = 3 [pid 3646] ioctl(4, LOOP_SET_FD, 3 [pid 3647] ftruncate(3, 0 [pid 3646] <... ioctl resumed>) = 0 [pid 3647] <... ftruncate resumed>) = 0 [pid 3646] mkdir("./file0", 0777 [pid 3647] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3646] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3647] <... openat resumed>) = 4 [pid 3646] pipe2( [pid 3647] ioctl(4, LOOP_SET_FD, 3 [pid 3646] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3647] <... ioctl resumed>) = 0 [pid 3646] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3647] mkdir("./file0", 0777 [pid 3646] <... write resumed>) = 21 [pid 3647] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3647] pipe2([5, 6], 0) = 0 [pid 3647] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3648 ./strace-static-x86_64: Process 3648 attached [pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3648] setpgid(0, 0) = 0 [pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3643] <... mount resumed>) = -1 EIO (Input/output error) [pid 3648] <... openat resumed>) = 3 [pid 3643] exit_group(0 [pid 3648] write(3, "1000", 4 [pid 3643] <... exit_group resumed>) = ? [pid 3648] <... write resumed>) = 4 [pid 3643] +++ exited with 0 +++ [pid 3648] close(3) = 0 [pid 3648] memfd_create("syzkaller", 0) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3648] ftruncate(3, 0) = 0 [pid 3648] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3648] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3648] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3648] pipe2([5, 6], 0) = 0 [pid 3648] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3641] <... mount resumed>) = -1 EIO (Input/output error) [pid 3641] exit_group(0) = ? [pid 3641] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3649 ./strace-static-x86_64: Process 3649 attached [pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3649] setpgid(0, 0) = 0 [pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3646] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3649] write(3, "1000", 4 [pid 3646] exit_group(0 [pid 3617] close(3 [pid 3649] <... write resumed>) = 4 [pid 3646] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3649] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3649] <... close resumed>) = 0 [pid 3646] +++ exited with 0 +++ ./strace-static-x86_64: Process 3650 attached [pid 3649] memfd_create("syzkaller", 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3650 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3649] <... memfd_create resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3650] <... prctl resumed>) = 0 [pid 3649] ftruncate(3, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3650] setpgid(0, 0 [pid 3649] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3650] <... setpgid resumed>) = 0 [pid 3649] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3649] <... openat resumed>) = 4 [pid 3650] <... openat resumed>) = 3 [pid 3649] ioctl(4, LOOP_SET_FD, 3 [pid 3650] write(3, "1000", 4 [pid 3649] <... ioctl resumed>) = 0 [pid 3650] <... write resumed>) = 4 [pid 3649] mkdir("./file0", 0777 [pid 3650] close(3 [pid 3649] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3650] <... close resumed>) = 0 [pid 3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3650] memfd_create("syzkaller", 0 [pid 3649] pipe2( [pid 3650] <... memfd_create resumed>) = 3 [pid 3649] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3649] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3650] ftruncate(3, 0 [pid 3649] <... write resumed>) = 21 [pid 3650] <... ftruncate resumed>) = 0 [pid 3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3650] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3650] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3650] mkdir("./file0", 0777 [pid 3615] <... ioctl resumed>) = 0 [pid 3650] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] close(3 [pid 3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... close resumed>) = 0 [pid 3650] pipe2( [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3650] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3650] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3651 [pid 3650] <... write resumed>) = 21 [pid 3645] <... mount resumed>) = -1 EIO (Input/output error) [pid 3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3645] exit_group(0./strace-static-x86_64: Process 3651 attached ) = ? [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] +++ exited with 0 +++ [pid 3651] setpgid(0, 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3651] <... openat resumed>) = 3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3651] write(3, "1000", 4) = 4 [pid 3651] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3651] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 3651] <... memfd_create resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3651] ftruncate(3, 0) = 0 [pid 3651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3651] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3651] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3651] pipe2([5, 6], 0) = 0 [pid 3651] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3647] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3647] exit_group(0) = ? [pid 3616] close(3 [pid 3647] +++ exited with 0 +++ [pid 3616] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... restart_syscall resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3652 ./strace-static-x86_64: Process 3652 attached [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3652] setpgid(0, 0) = 0 [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] write(3, "1000", 4) = 4 [pid 3652] close(3) = 0 [pid 3652] memfd_create("syzkaller", 0) = 3 [pid 3652] ftruncate(3, 0) = 0 [pid 3652] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3652] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3652] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3652] pipe2([5, 6], 0) = 0 [pid 3652] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3648] <... mount resumed>) = -1 EIO (Input/output error) [pid 3648] exit_group(0) = ? [pid 3648] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3653 ./strace-static-x86_64: Process 3653 attached [pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3653] setpgid(0, 0) = 0 [pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3653] write(3, "1000", 4) = 4 [pid 3653] close(3) = 0 [pid 3653] memfd_create("syzkaller", 0) = 3 [pid 3653] ftruncate(3, 0) = 0 [pid 3653] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3653] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3653] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3653] pipe2([5, 6], 0) = 0 [pid 3653] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3654 ./strace-static-x86_64: Process 3654 attached [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3650] <... mount resumed>) = -1 EIO (Input/output error) [pid 3654] <... prctl resumed>) = 0 [pid 3650] exit_group(0) = ? [pid 3654] setpgid(0, 0 [pid 3650] +++ exited with 0 +++ [pid 3654] <... setpgid resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3654] <... openat resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 3654] write(3, "1000", 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3654] <... write resumed>) = 4 [pid 3654] close(3) = 0 [pid 3654] memfd_create("syzkaller", 0) = 3 [pid 3654] ftruncate(3, 0) = 0 [pid 3654] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3655 [pid 3654] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3654] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3654] pipe2([5, 6], 0) = 0 [pid 3654] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3649] <... mount resumed>) = -1 EIO (Input/output error) [pid 3649] exit_group(0) = ? [pid 3649] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 ./strace-static-x86_64: Process 3655 attached [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3655] setpgid(0, 0) = 0 [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3655] write(3, "1000", 4) = 4 [pid 3655] close(3) = 0 [pid 3655] memfd_create("syzkaller", 0) = 3 [pid 3655] ftruncate(3, 0) = 0 [pid 3655] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3655] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3655] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3655] pipe2([5, 6], 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3655] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 3655] <... write resumed>) = 21 [pid 3618] <... close resumed>) = 0 [pid 3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3651] <... mount resumed>) = -1 EIO (Input/output error) [pid 3651] exit_group(0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3656 [pid 3651] <... exit_group resumed>) = ? [pid 3651] +++ exited with 0 +++ ./strace-static-x86_64: Process 3656 attached [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3656] setpgid(0, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3656] <... setpgid resumed>) = 0 [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3656] write(3, "1000", 4) = 4 [pid 3656] close(3) = 0 [pid 3656] memfd_create("syzkaller", 0) = 3 [pid 3656] ftruncate(3, 0) = 0 [pid 3656] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3656] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3656] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3656] pipe2( [pid 3652] <... mount resumed>) = -1 EIO (Input/output error) [pid 3656] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3652] exit_group(0 [pid 3656] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3652] <... exit_group resumed>) = ? [pid 3656] <... write resumed>) = 21 [pid 3652] +++ exited with 0 +++ [pid 3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3657 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3./strace-static-x86_64: Process 3657 attached ) = 0 [pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3657] setpgid(0, 0) = 0 [pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3653] <... mount resumed>) = -1 EIO (Input/output error) [pid 3657] <... openat resumed>) = 3 [pid 3653] exit_group(0 [pid 3657] write(3, "1000", 4 [pid 3653] <... exit_group resumed>) = ? [pid 3657] <... write resumed>) = 4 [pid 3653] +++ exited with 0 +++ [pid 3657] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3657] <... close resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3657] memfd_create("syzkaller", 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3657] <... memfd_create resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3658 [pid 3657] ftruncate(3, 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3657] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 3657] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3657] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3657] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3657] pipe2([5, 6], 0) = 0 [pid 3657] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3658 attached [pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3658] setpgid(0, 0) = 0 [pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3658] write(3, "1000", 4) = 4 [pid 3658] close(3) = 0 [pid 3658] memfd_create("syzkaller", 0) = 3 [pid 3658] ftruncate(3, 0) = 0 [pid 3658] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3658] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3658] <... ioctl resumed>) = 0 [pid 3658] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3659 [pid 3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3658] pipe2([5, 6], 0) = 0 [pid 3658] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3659 attached [pid 3654] <... mount resumed>) = -1 EIO (Input/output error) [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3659] setpgid(0, 0 [pid 3654] exit_group(0 [pid 3659] <... setpgid resumed>) = 0 [pid 3654] <... exit_group resumed>) = ? [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3659] write(3, "1000", 4) = 4 [pid 3654] +++ exited with 0 +++ [pid 3659] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3659] <... close resumed>) = 0 [pid 3659] memfd_create("syzkaller", 0) = 3 [pid 3659] ftruncate(3, 0) = 0 [pid 3659] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3659] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3659] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3659] <... ioctl resumed>) = 0 [pid 3659] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3659] pipe2([5, 6], 0) = 0 [pid 3659] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3655] <... mount resumed>) = -1 EIO (Input/output error) [pid 3655] exit_group(0) = ? [pid 3655] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3660 ./strace-static-x86_64: Process 3660 attached [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0) = 0 [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3660] write(3, "1000", 4) = 4 [pid 3660] close(3) = 0 [pid 3660] memfd_create("syzkaller", 0) = 3 [pid 3660] ftruncate(3, 0) = 0 [pid 3660] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3660] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3660] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3617] <... ioctl resumed>) = 0 [pid 3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] close(3 [pid 3660] pipe2([5, 6], 0) = 0 [pid 3617] <... close resumed>) = 0 [pid 3660] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3660] <... write resumed>) = 21 [pid 3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3661 ./strace-static-x86_64: Process 3661 attached [pid 3658] <... mount resumed>) = -1 EIO (Input/output error) [pid 3658] exit_group(0 [pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3658] <... exit_group resumed>) = ? [pid 3661] <... prctl resumed>) = 0 [pid 3658] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3661] setpgid(0, 0) = 0 [pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3661] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3661] <... write resumed>) = 4 [pid 3661] close(3) = 0 [pid 3661] memfd_create("syzkaller", 0) = 3 [pid 3661] ftruncate(3, 0) = 0 [pid 3661] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3661] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3661] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3661] pipe2([5, 6], 0) = 0 [pid 3661] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3662 attached , child_tidptr=0x5555570a1690) = 3662 [pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3662] setpgid(0, 0) = 0 [pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3662] write(3, "1000", 4 [pid 3656] <... mount resumed>) = -1 EIO (Input/output error) [pid 3656] exit_group(0) = ? [pid 3656] +++ exited with 0 +++ [pid 3662] <... write resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3662] close(3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3662] <... close resumed>) = 0 [pid 3662] memfd_create("syzkaller", 0) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3662] ftruncate(3, 0 [pid 3618] <... openat resumed>) = 3 [pid 3662] <... ftruncate resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3662] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3662] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3662] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3662] pipe2([5, 6], 0) = 0 [pid 3662] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3659] <... mount resumed>) = -1 EIO (Input/output error) [pid 3659] exit_group(0) = ? [pid 3659] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3664 attached , child_tidptr=0x5555570a1690) = 3664 [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3664] setpgid(0, 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3664] <... setpgid resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3666 [pid 3664] <... openat resumed>) = 3 [pid 3664] write(3, "1000", 4) = 4 [pid 3664] close(3) = 0 [pid 3664] memfd_create("syzkaller", 0) = 3 [pid 3664] ftruncate(3, 0./strace-static-x86_64: Process 3666 attached [pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3666] setpgid(0, 0) = 0 [pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3666] write(3, "1000", 4) = 4 [pid 3666] close(3) = 0 [pid 3666] memfd_create("syzkaller", 0) = 3 [pid 3666] ftruncate(3, 0) = 0 [pid 3666] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3666] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3666] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3666] pipe2([5, 6], 0) = 0 [pid 3666] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3664] <... ftruncate resumed>) = 0 [pid 3664] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3664] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3664] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3664] pipe2([5, 6], 0) = 0 [pid 3657] <... mount resumed>) = -1 EIO (Input/output error) [pid 3664] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3657] exit_group(0 [pid 3664] <... write resumed>) = 21 [pid 3657] <... exit_group resumed>) = ? [pid 3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3657] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3667 attached [pid 3662] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3667 [pid 3662] exit_group(0) = ? [pid 3662] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3667] setpgid(0, 0) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3661] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 3667] write(3, "1000", 4 [pid 3661] exit_group(0 [pid 3667] <... write resumed>) = 4 [pid 3616] <... close resumed>) = 0 [pid 3661] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3667] close(3) = 0 [pid 3661] +++ exited with 0 +++ [pid 3667] memfd_create("syzkaller", 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3668 ./strace-static-x86_64: Process 3668 attached [pid 3667] <... memfd_create resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3667] ftruncate(3, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3667] <... ftruncate resumed>) = 0 [pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... restart_syscall resumed>) = 0 [pid 3668] <... prctl resumed>) = 0 [pid 3667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3668] setpgid(0, 0 [pid 3667] ioctl(4, LOOP_SET_FD, 3 [pid 3668] <... setpgid resumed>) = 0 [pid 3667] <... ioctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3667] mkdir("./file0", 0777 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3668] <... openat resumed>) = 3 [pid 3667] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3668] write(3, "1000", 4 [pid 3667] pipe2( [pid 3668] <... write resumed>) = 4 [pid 3667] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3668] close(3) = 0 [pid 3667] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3668] memfd_create("syzkaller", 0 [pid 3667] <... write resumed>) = 21 [pid 3668] <... memfd_create resumed>) = 3 [pid 3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3668] ftruncate(3, 0) = 0 [pid 3668] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3668] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3668] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3668] pipe2([5, 6], 0) = 0 [pid 3668] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3660] <... mount resumed>) = -1 EIO (Input/output error) [pid 3660] exit_group(0) = ? [pid 3660] +++ exited with 0 +++ [pid 3617] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] close(3 [pid 3666] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 3666] exit_group(0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3666] <... exit_group resumed>) = ? [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3669 [pid 3666] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3669 attached [pid 3669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3669] <... prctl resumed>) = 0 [pid 3669] setpgid(0, 0) = 0 [pid 3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3619] close(3 [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3670 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3671 [pid 3669] write(3, "1000", 4./strace-static-x86_64: Process 3670 attached ) = 4 [pid 3670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3669] close(3) = 0 [pid 3669] memfd_create("syzkaller", 0) = 3 [pid 3669] ftruncate(3, 0) = 0 [pid 3670] <... prctl resumed>) = 0 [pid 3669] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3671 attached [pid 3670] setpgid(0, 0 [pid 3669] <... openat resumed>) = 4 [pid 3670] <... setpgid resumed>) = 0 [pid 3669] ioctl(4, LOOP_SET_FD, 3 [pid 3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3669] <... ioctl resumed>) = 0 [pid 3670] <... openat resumed>) = 3 [pid 3669] mkdir("./file0", 0777 [pid 3670] write(3, "1000", 4 [pid 3669] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3670] <... write resumed>) = 4 [pid 3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3670] close(3 [pid 3669] pipe2( [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3670] <... close resumed>) = 0 [pid 3669] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3671] <... prctl resumed>) = 0 [pid 3670] memfd_create("syzkaller", 0 [pid 3669] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3670] <... memfd_create resumed>) = 3 [pid 3669] <... write resumed>) = 21 [pid 3670] ftruncate(3, 0 [pid 3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3671] setpgid(0, 0 [pid 3670] <... ftruncate resumed>) = 0 [pid 3671] <... setpgid resumed>) = 0 [pid 3670] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3670] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3670] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3670] pipe2([5, 6], 0) = 0 [pid 3670] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3664] <... mount resumed>) = -1 EIO (Input/output error) [pid 3664] exit_group(0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3664] <... exit_group resumed>) = ? [pid 3664] +++ exited with 0 +++ [pid 3671] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3671] write(3, "1000", 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3671] <... write resumed>) = 4 [pid 3671] close(3) = 0 [pid 3671] memfd_create("syzkaller", 0) = 3 [pid 3671] ftruncate(3, 0) = 0 [pid 3671] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3671] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3671] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3671] pipe2([5, 6], 0) = 0 [pid 3671] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3672 [pid 3667] <... mount resumed>) = -1 EIO (Input/output error) [pid 3667] exit_group(0) = ? ./strace-static-x86_64: Process 3672 attached [pid 3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3672] setpgid(0, 0) = 0 [pid 3667] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3672] write(3, "1000", 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3672] <... write resumed>) = 4 [pid 3672] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3672] <... close resumed>) = 0 [pid 3672] memfd_create("syzkaller", 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3672] <... memfd_create resumed>) = 3 [pid 3672] ftruncate(3, 0) = 0 [pid 3668] <... mount resumed>) = -1 EIO (Input/output error) [pid 3672] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3668] exit_group(0 [pid 3672] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3672] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3672] pipe2([5, 6], 0) = 0 [pid 3668] <... exit_group resumed>) = ? [pid 3672] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3668] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3673 ./strace-static-x86_64: Process 3673 attached [pid 3670] <... mount resumed>) = -1 EIO (Input/output error) [pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... ioctl resumed>) = 0 [pid 3673] <... prctl resumed>) = 0 [pid 3670] exit_group(0 [pid 3616] close(3 [pid 3670] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3670] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3673] setpgid(0, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3674 [pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3673] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3674 attached [pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3674] setpgid(0, 0) = 0 [pid 3673] close(3 [pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3673] <... close resumed>) = 0 [pid 3674] <... openat resumed>) = 3 [pid 3673] memfd_create("syzkaller", 0 [pid 3671] <... mount resumed>) = -1 EIO (Input/output error) [pid 3674] write(3, "1000", 4) = 4 [pid 3674] close(3) = 0 [pid 3674] memfd_create("syzkaller", 0) = 3 [pid 3674] ftruncate(3, 0) = 0 [pid 3674] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3674] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3674] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3674] pipe2([5, 6], 0) = 0 [pid 3674] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3673] <... memfd_create resumed>) = 3 [pid 3673] ftruncate(3, 0) = 0 [pid 3673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3673] ioctl(4, LOOP_SET_FD, 3 [pid 3671] exit_group(0 [pid 3673] <... ioctl resumed>) = 0 [pid 3673] mkdir("./file0", 0777 [pid 3671] <... exit_group resumed>) = ? [pid 3673] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3671] +++ exited with 0 +++ ./strace-static-x86_64: Process 3675 attached [pid 3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3673] pipe2( [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3675 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3673] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3673] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3673] <... write resumed>) = 21 [pid 3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3669] <... mount resumed>) = -1 EIO (Input/output error) [pid 3675] setpgid(0, 0 [pid 3669] exit_group(0) = ? [pid 3675] <... setpgid resumed>) = 0 [pid 3669] +++ exited with 0 +++ [pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3675] <... openat resumed>) = 3 [pid 3675] write(3, "1000", 4) = 4 [pid 3675] close(3) = 0 [pid 3675] memfd_create("syzkaller", 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3675] <... memfd_create resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3675] ftruncate(3, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3676 [pid 3675] <... ftruncate resumed>) = 0 [pid 3675] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3675] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3675] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3675] pipe2([5, 6], 0) = 0 [pid 3675] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3676 attached [pid 3676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3677 attached [pid 3676] <... prctl resumed>) = 0 [pid 3674] <... mount resumed>) = -1 EIO (Input/output error) [pid 3676] setpgid(0, 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3677 [pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3674] exit_group(0 [pid 3676] <... setpgid resumed>) = 0 [pid 3674] <... exit_group resumed>) = ? [pid 3677] <... prctl resumed>) = 0 [pid 3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3674] +++ exited with 0 +++ [pid 3677] setpgid(0, 0) = 0 [pid 3676] <... openat resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3676] write(3, "1000", 4 [pid 3677] <... openat resumed>) = 3 [pid 3676] <... write resumed>) = 4 [pid 3677] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3676] close(3 [pid 3677] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 3677] close(3 [pid 3676] <... close resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3677] <... close resumed>) = 0 [pid 3672] <... mount resumed>) = -1 EIO (Input/output error) [pid 3676] memfd_create("syzkaller", 0 [pid 3672] exit_group(0) = ? [pid 3672] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3677] memfd_create("syzkaller", 0) = 3 [pid 3676] <... memfd_create resumed>) = 3 [pid 3677] ftruncate(3, 0 [pid 3676] ftruncate(3, 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3677] <... ftruncate resumed>) = 0 [pid 3676] <... ftruncate resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3677] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3676] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3677] <... openat resumed>) = 4 [pid 3677] ioctl(4, LOOP_SET_FD, 3 [pid 3676] <... openat resumed>) = 4 [pid 3677] <... ioctl resumed>) = 0 [pid 3677] mkdir("./file0", 0777 [pid 3676] ioctl(4, LOOP_SET_FD, 3 [pid 3677] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3676] <... ioctl resumed>) = 0 [pid 3677] pipe2( [pid 3676] mkdir("./file0", 0777 [pid 3677] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3676] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3677] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3677] <... write resumed>) = 21 [pid 3676] pipe2( [pid 3677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3676] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3676] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3675] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3678 [pid 3616] close(3 [pid 3675] exit_group(0) = ? [pid 3616] <... close resumed>) = 0 ./strace-static-x86_64: Process 3678 attached [pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3678] setpgid(0, 0) = 0 [pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3675] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3679 [pid 3678] <... openat resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3678] write(3, "1000", 4) = 4 [pid 3678] close(3) = 0 [pid 3678] memfd_create("syzkaller", 0) = 3 [pid 3678] ftruncate(3, 0 [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3679 attached [pid 3678] <... ftruncate resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3678] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3678] <... openat resumed>) = 4 [pid 3679] <... prctl resumed>) = 0 [pid 3678] ioctl(4, LOOP_SET_FD, 3 [pid 3679] setpgid(0, 0 [pid 3678] <... ioctl resumed>) = 0 [pid 3679] <... setpgid resumed>) = 0 [pid 3678] mkdir("./file0", 0777 [pid 3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3678] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3679] <... openat resumed>) = 3 [pid 3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3679] write(3, "1000", 4 [pid 3678] pipe2( [pid 3679] <... write resumed>) = 4 [pid 3678] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3679] close(3 [pid 3678] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3673] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3679] <... close resumed>) = 0 [pid 3678] <... write resumed>) = 21 [pid 3673] exit_group(0 [pid 3620] close(3 [pid 3679] memfd_create("syzkaller", 0 [pid 3620] <... close resumed>) = 0 [pid 3679] <... memfd_create resumed>) = 3 [pid 3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3673] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3679] ftruncate(3, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3680 [pid 3679] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3673] +++ exited with 0 +++ [pid 3679] <... openat resumed>) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3680 attached [pid 3679] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3679] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3680] <... prctl resumed>) = 0 [pid 3679] pipe2( [pid 3680] setpgid(0, 0 [pid 3679] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3680] <... setpgid resumed>) = 0 [pid 3679] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3679] <... write resumed>) = 21 [pid 3676] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3680] <... openat resumed>) = 3 [pid 3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3676] exit_group(0 [pid 3680] write(3, "1000", 4 [pid 3676] <... exit_group resumed>) = ? [pid 3680] <... write resumed>) = 4 [pid 3676] +++ exited with 0 +++ [pid 3680] close(3) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3680] memfd_create("syzkaller", 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3680] <... memfd_create resumed>) = 3 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3680] ftruncate(3, 0) = 0 [pid 3680] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3680] <... openat resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 3680] ioctl(4, LOOP_SET_FD, 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3680] <... ioctl resumed>) = 0 [pid 3680] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3680] pipe2([5, 6], 0) = 0 [pid 3680] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3677] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3677] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3677] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3681 [pid 3677] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3682 [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 3681 attached [pid 3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3682 attached [pid 3681] setpgid(0, 0 [pid 3617] <... openat resumed>) = 3 [pid 3682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3681] <... setpgid resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3682] <... prctl resumed>) = 0 [pid 3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3682] setpgid(0, 0 [pid 3681] <... openat resumed>) = 3 [pid 3682] <... setpgid resumed>) = 0 [pid 3681] write(3, "1000", 4 [pid 3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3681] <... write resumed>) = 4 [pid 3682] <... openat resumed>) = 3 [pid 3681] close(3 [pid 3682] write(3, "1000", 4 [pid 3681] <... close resumed>) = 0 [pid 3682] <... write resumed>) = 4 [pid 3681] memfd_create("syzkaller", 0 [pid 3682] close(3 [pid 3681] <... memfd_create resumed>) = 3 [pid 3682] <... close resumed>) = 0 [pid 3681] ftruncate(3, 0 [pid 3682] memfd_create("syzkaller", 0 [pid 3681] <... ftruncate resumed>) = 0 [pid 3682] <... memfd_create resumed>) = 3 [pid 3681] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3682] ftruncate(3, 0 [pid 3681] <... openat resumed>) = 4 [pid 3682] <... ftruncate resumed>) = 0 [pid 3681] ioctl(4, LOOP_SET_FD, 3 [pid 3682] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3681] <... ioctl resumed>) = 0 [pid 3682] <... openat resumed>) = 4 [pid 3681] mkdir("./file0", 0777 [pid 3682] ioctl(4, LOOP_SET_FD, 3 [pid 3681] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3682] <... ioctl resumed>) = 0 [pid 3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3682] mkdir("./file0", 0777 [pid 3681] pipe2( [pid 3682] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3681] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3681] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3682] pipe2( [pid 3681] <... write resumed>) = 21 [pid 3682] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3682] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3683 ./strace-static-x86_64: Process 3683 attached [pid 3678] <... mount resumed>) = -1 EIO (Input/output error) [pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3683] setpgid(0, 0) = 0 [pid 3678] exit_group(0 [pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3678] <... exit_group resumed>) = ? [pid 3683] write(3, "1000", 4) = 4 [pid 3678] +++ exited with 0 +++ [pid 3683] close(3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3683] memfd_create("syzkaller", 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3683] <... memfd_create resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3683] ftruncate(3, 0) = 0 [pid 3683] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3683] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... openat resumed>) = 3 [pid 3683] <... ioctl resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3683] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3683] pipe2([5, 6], 0) = 0 [pid 3683] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3679] <... mount resumed>) = -1 EIO (Input/output error) [pid 3679] exit_group(0) = ? [pid 3679] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... close resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3680] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3680] exit_group(0) = ? [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3684 attached [pid 3680] +++ exited with 0 +++ [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3684 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3684] <... prctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3684] setpgid(0, 0 [pid 3620] <... openat resumed>) = 3 [pid 3684] <... setpgid resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3684] write(3, "1000", 4) = 4 [pid 3684] close(3) = 0 [pid 3684] memfd_create("syzkaller", 0) = 3 [pid 3684] ftruncate(3, 0) = 0 [pid 3684] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3684] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3684] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3684] pipe2([5, 6], 0) = 0 [pid 3684] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3683] <... mount resumed>) = -1 EIO (Input/output error) [pid 3684] <... write resumed>) = 21 [pid 3683] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3683] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3616] close(3 [pid 3683] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3685 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3686 ./strace-static-x86_64: Process 3686 attached [pid 3617] <... restart_syscall resumed>) = 0 [pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 3685 attached [pid 3686] setpgid(0, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3686] <... setpgid resumed>) = 0 [pid 3685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... openat resumed>) = 3 [pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3685] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3686] <... openat resumed>) = 3 [pid 3685] setpgid(0, 0 [pid 3686] write(3, "1000", 4 [pid 3685] <... setpgid resumed>) = 0 [pid 3686] <... write resumed>) = 4 [pid 3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3686] close(3 [pid 3685] <... openat resumed>) = 3 [pid 3686] <... close resumed>) = 0 [pid 3685] write(3, "1000", 4 [pid 3681] <... mount resumed>) = -1 EIO (Input/output error) [pid 3685] <... write resumed>) = 4 [pid 3685] close(3) = 0 [pid 3686] memfd_create("syzkaller", 0 [pid 3685] memfd_create("syzkaller", 0 [pid 3686] <... memfd_create resumed>) = 3 [pid 3685] <... memfd_create resumed>) = 3 [pid 3681] exit_group(0 [pid 3686] ftruncate(3, 0 [pid 3685] ftruncate(3, 0 [pid 3681] <... exit_group resumed>) = ? [pid 3686] <... ftruncate resumed>) = 0 [pid 3685] <... ftruncate resumed>) = 0 [pid 3686] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3685] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3686] <... openat resumed>) = 4 [pid 3685] <... openat resumed>) = 4 [pid 3681] +++ exited with 0 +++ [pid 3686] ioctl(4, LOOP_SET_FD, 3 [pid 3685] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3686] <... ioctl resumed>) = 0 [pid 3685] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3686] mkdir("./file0", 0777 [pid 3685] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 3686] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3685] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... openat resumed>) = 3 [pid 3686] pipe2( [pid 3685] pipe2( [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3687 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3687 attached [pid 3686] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3685] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3682] <... mount resumed>) = -1 EIO (Input/output error) [pid 3685] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3682] exit_group(0 [pid 3685] <... write resumed>) = 21 [pid 3682] <... exit_group resumed>) = ? [pid 3685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3682] +++ exited with 0 +++ [pid 3687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3686] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3686] <... write resumed>) = 21 [pid 3686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3687] <... prctl resumed>) = 0 [pid 3687] setpgid(0, 0) = 0 [pid 3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3687] write(3, "1000", 4) = 4 [pid 3687] close(3) = 0 [pid 3687] memfd_create("syzkaller", 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3687] <... memfd_create resumed>) = 3 [pid 3684] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 3615] close(3 [pid 3687] ftruncate(3, 0 [pid 3684] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3687] <... ftruncate resumed>) = 0 [pid 3684] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3687] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3684] +++ exited with 0 +++ ./strace-static-x86_64: Process 3688 attached [pid 3687] <... openat resumed>) = 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3688 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3689 [pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3687] ioctl(4, LOOP_SET_FD, 3 [pid 3688] <... prctl resumed>) = 0 [pid 3687] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3689 attached [pid 3688] setpgid(0, 0 [pid 3687] mkdir("./file0", 0777 [pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3688] <... setpgid resumed>) = 0 [pid 3687] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3689] <... prctl resumed>) = 0 [pid 3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3689] setpgid(0, 0 [pid 3688] <... openat resumed>) = 3 [pid 3687] pipe2( [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3689] <... setpgid resumed>) = 0 [pid 3688] write(3, "1000", 4 [pid 3687] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3688] <... write resumed>) = 4 [pid 3687] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3689] <... openat resumed>) = 3 [pid 3688] close(3 [pid 3687] <... write resumed>) = 21 [pid 3689] write(3, "1000", 4 [pid 3688] <... close resumed>) = 0 [pid 3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3689] <... write resumed>) = 4 [pid 3686] <... mount resumed>) = -1 EIO (Input/output error) [pid 3689] close(3 [pid 3686] exit_group(0 [pid 3689] <... close resumed>) = 0 [pid 3686] <... exit_group resumed>) = ? [pid 3689] memfd_create("syzkaller", 0 [pid 3686] +++ exited with 0 +++ [pid 3689] <... memfd_create resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3689] ftruncate(3, 0) = 0 [pid 3689] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3688] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3689] <... openat resumed>) = 4 [pid 3688] <... memfd_create resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3689] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3689] <... ioctl resumed>) = 0 [pid 3689] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3689] pipe2([5, 6], 0) = 0 [pid 3689] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3688] ftruncate(3, 0 [pid 3689] <... write resumed>) = 21 [pid 3688] <... ftruncate resumed>) = 0 [pid 3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3688] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3688] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3688] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3688] pipe2( [pid 3685] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3688] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3685] exit_group(0 [pid 3688] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 3688] <... write resumed>) = 21 [pid 3685] <... exit_group resumed>) = ? [pid 3616] <... ioctl resumed>) = 0 [pid 3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 3616] close(3 [pid 3685] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3690 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3691 [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3690 attached [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3690] setpgid(0, 0) = 0 [pid 3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3691 attached ) = 3 [pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3690] write(3, "1000", 4 [pid 3689] <... mount resumed>) = -1 EIO (Input/output error) [pid 3691] <... prctl resumed>) = 0 [pid 3689] exit_group(0 [pid 3691] setpgid(0, 0 [pid 3689] <... exit_group resumed>) = ? [pid 3691] <... setpgid resumed>) = 0 [pid 3689] +++ exited with 0 +++ [pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3690] <... write resumed>) = 4 [pid 3691] <... openat resumed>) = 3 [pid 3690] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3691] write(3, "1000", 4 [pid 3690] <... close resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3691] <... write resumed>) = 4 [pid 3690] memfd_create("syzkaller", 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3691] close(3 [pid 3690] <... memfd_create resumed>) = 3 [pid 3691] <... close resumed>) = 0 [pid 3690] ftruncate(3, 0 [pid 3691] memfd_create("syzkaller", 0 [pid 3690] <... ftruncate resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3691] <... memfd_create resumed>) = 3 [pid 3690] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 3691] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3691] <... ftruncate resumed>) = 0 [pid 3691] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3691] ioctl(4, LOOP_SET_FD, 3 [pid 3690] <... openat resumed>) = 4 [pid 3691] <... ioctl resumed>) = 0 [pid 3690] ioctl(4, LOOP_SET_FD, 3 [pid 3687] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3691] mkdir("./file0", 0777 [pid 3690] <... ioctl resumed>) = 0 [pid 3687] exit_group(0 [pid 3620] close(3 [pid 3691] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3690] mkdir("./file0", 0777 [pid 3687] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3690] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3691] pipe2( [pid 3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3687] +++ exited with 0 +++ [pid 3691] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3692 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3691] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3690] pipe2( [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3692 attached [pid 3690] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3693 ./strace-static-x86_64: Process 3693 attached [pid 3690] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3690] <... write resumed>) = 21 [pid 3688] <... mount resumed>) = -1 EIO (Input/output error) [pid 3692] setpgid(0, 0 [pid 3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3688] exit_group(0 [pid 3692] <... setpgid resumed>) = 0 [pid 3688] <... exit_group resumed>) = ? [pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3693] <... prctl resumed>) = 0 [pid 3693] setpgid(0, 0 [pid 3692] <... openat resumed>) = 3 [pid 3688] +++ exited with 0 +++ [pid 3693] <... setpgid resumed>) = 0 [pid 3692] write(3, "1000", 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3692] <... write resumed>) = 4 [pid 3693] <... openat resumed>) = 3 [pid 3692] close(3 [pid 3693] write(3, "1000", 4 [pid 3692] <... close resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3693] <... write resumed>) = 4 [pid 3692] memfd_create("syzkaller", 0 [pid 3619] <... openat resumed>) = 3 [pid 3693] close(3 [pid 3692] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3693] <... close resumed>) = 0 [pid 3692] ftruncate(3, 0 [pid 3693] memfd_create("syzkaller", 0 [pid 3692] <... ftruncate resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3693] <... memfd_create resumed>) = 3 [pid 3692] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] close(3 [pid 3693] ftruncate(3, 0 [pid 3617] <... close resumed>) = 0 [pid 3693] <... ftruncate resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3694 [pid 3693] ioctl(4, LOOP_SET_FD, 3 [pid 3692] <... openat resumed>) = 4 [pid 3693] <... ioctl resumed>) = 0 [pid 3692] ioctl(4, LOOP_SET_FD, 3 [pid 3693] mkdir("./file0", 0777 [pid 3692] <... ioctl resumed>) = 0 [pid 3693] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3692] mkdir("./file0", 0777./strace-static-x86_64: Process 3694 attached [pid 3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3692] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3693] pipe2( [pid 3692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3694] <... prctl resumed>) = 0 [pid 3693] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3692] pipe2( [pid 3691] <... mount resumed>) = -1 EIO (Input/output error) [pid 3693] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3691] exit_group(0 [pid 3693] <... write resumed>) = 21 [pid 3691] <... exit_group resumed>) = ? [pid 3694] setpgid(0, 0 [pid 3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3692] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3691] +++ exited with 0 +++ [pid 3694] <... setpgid resumed>) = 0 [pid 3692] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3692] <... write resumed>) = 21 [pid 3619] close(3 [pid 3694] <... openat resumed>) = 3 [pid 3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... close resumed>) = 0 [pid 3694] write(3, "1000", 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3694] <... write resumed>) = 4 [pid 3694] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3695 [pid 3694] <... close resumed>) = 0 [pid 3694] memfd_create("syzkaller", 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3694] <... memfd_create resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 3694] ftruncate(3, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3694] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 3695 attached [pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3695] setpgid(0, 0) = 0 [pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3694] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3695] <... openat resumed>) = 3 [pid 3694] <... openat resumed>) = 4 [pid 3694] ioctl(4, LOOP_SET_FD, 3 [pid 3695] write(3, "1000", 4 [pid 3694] <... ioctl resumed>) = 0 [pid 3695] <... write resumed>) = 4 [pid 3694] mkdir("./file0", 0777 [pid 3695] close(3 [pid 3694] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3695] <... close resumed>) = 0 [pid 3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3695] memfd_create("syzkaller", 0 [pid 3694] pipe2( [pid 3695] <... memfd_create resumed>) = 3 [pid 3694] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3695] ftruncate(3, 0 [pid 3694] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3695] <... ftruncate resumed>) = 0 [pid 3694] <... write resumed>) = 21 [pid 3695] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3695] <... openat resumed>) = 4 [pid 3695] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3695] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3690] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3695] pipe2( [pid 3690] exit_group(0 [pid 3618] close(3 [pid 3695] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3690] <... exit_group resumed>) = ? [pid 3695] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3690] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3696 attached [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3696 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3696] setpgid(0, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3696] <... setpgid resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3696] <... openat resumed>) = 3 [pid 3696] write(3, "1000", 4) = 4 [pid 3696] close(3) = 0 [pid 3696] memfd_create("syzkaller", 0) = 3 [pid 3693] <... mount resumed>) = -1 EIO (Input/output error) [pid 3693] exit_group(0) = ? [pid 3693] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3696] ftruncate(3, 0) = 0 [pid 3696] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3696] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3696] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3696] pipe2([5, 6], 0) = 0 [pid 3696] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3692] <... mount resumed>) = -1 EIO (Input/output error) [pid 3692] exit_group(0) = ? [pid 3692] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3696] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 3615] close(3 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3697 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3698 ./strace-static-x86_64: Process 3698 attached [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 3697 attached [pid 3698] setpgid(0, 0) = 0 [pid 3697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3697] <... prctl resumed>) = 0 [pid 3698] <... openat resumed>) = 3 [pid 3697] setpgid(0, 0 [pid 3698] write(3, "1000", 4 [pid 3697] <... setpgid resumed>) = 0 [pid 3698] <... write resumed>) = 4 [pid 3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3698] close(3 [pid 3697] <... openat resumed>) = 3 [pid 3698] <... close resumed>) = 0 [pid 3697] write(3, "1000", 4 [pid 3698] memfd_create("syzkaller", 0 [pid 3697] <... write resumed>) = 4 [pid 3698] <... memfd_create resumed>) = 3 [pid 3697] close(3 [pid 3698] ftruncate(3, 0 [pid 3697] <... close resumed>) = 0 [pid 3698] <... ftruncate resumed>) = 0 [pid 3697] memfd_create("syzkaller", 0 [pid 3698] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3697] <... memfd_create resumed>) = 3 [pid 3698] <... openat resumed>) = 4 [pid 3697] ftruncate(3, 0 [pid 3698] ioctl(4, LOOP_SET_FD, 3 [pid 3697] <... ftruncate resumed>) = 0 [pid 3698] <... ioctl resumed>) = 0 [pid 3697] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3694] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3698] mkdir("./file0", 0777 [pid 3697] <... openat resumed>) = 4 [pid 3694] exit_group(0 [pid 3620] close(3 [pid 3698] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3697] ioctl(4, LOOP_SET_FD, 3 [pid 3694] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3697] <... ioctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3698] pipe2( [pid 3697] mkdir("./file0", 0777 [pid 3694] +++ exited with 0 +++ [pid 3698] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3697] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3699 [pid 3698] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3698] <... write resumed>) = 21 [pid 3697] pipe2( [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3696] <... mount resumed>) = -1 EIO (Input/output error) [pid 3698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3697] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3699 attached [pid 3697] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3696] exit_group(0 [pid 3699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3697] <... write resumed>) = 21 [pid 3696] <... exit_group resumed>) = ? [pid 3699] <... prctl resumed>) = 0 [pid 3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3699] setpgid(0, 0 [pid 3696] +++ exited with 0 +++ [pid 3617] <... openat resumed>) = 3 [pid 3699] <... setpgid resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3699] write(3, "1000", 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3699] <... write resumed>) = 4 [pid 3699] close(3 [pid 3618] <... openat resumed>) = 3 [pid 3699] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3699] memfd_create("syzkaller", 0) = 3 [pid 3699] ftruncate(3, 0) = 0 [pid 3699] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3699] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3699] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3699] pipe2([5, 6], 0) = 0 [pid 3699] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3695] <... mount resumed>) = -1 EIO (Input/output error) [pid 3695] exit_group(0) = ? [pid 3695] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3617] close(3 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3700 ./strace-static-x86_64: Process 3701 attached ./strace-static-x86_64: Process 3700 attached [pid 3699] <... mount resumed>) = -1 EIO (Input/output error) [pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3699] exit_group(0 [pid 3701] <... prctl resumed>) = 0 [pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3699] <... exit_group resumed>) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3701 [pid 3701] setpgid(0, 0 [pid 3700] <... prctl resumed>) = 0 [pid 3699] +++ exited with 0 +++ [pid 3701] <... setpgid resumed>) = 0 [pid 3700] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3700] <... setpgid resumed>) = 0 [pid 3701] <... openat resumed>) = 3 [pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3701] write(3, "1000", 4 [pid 3700] <... openat resumed>) = 3 [pid 3701] <... write resumed>) = 4 [pid 3700] write(3, "1000", 4 [pid 3701] close(3 [pid 3700] <... write resumed>) = 4 [pid 3701] <... close resumed>) = 0 [pid 3700] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3701] memfd_create("syzkaller", 0 [pid 3700] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3701] <... memfd_create resumed>) = 3 [pid 3700] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3701] ftruncate(3, 0 [pid 3700] <... memfd_create resumed>) = 3 [pid 3701] <... ftruncate resumed>) = 0 [pid 3700] ftruncate(3, 0 [pid 3701] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3700] <... ftruncate resumed>) = 0 [pid 3701] <... openat resumed>) = 4 [pid 3700] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3701] ioctl(4, LOOP_SET_FD, 3 [pid 3700] <... openat resumed>) = 4 [pid 3697] <... mount resumed>) = -1 EIO (Input/output error) [pid 3700] ioctl(4, LOOP_SET_FD, 3 [pid 3701] <... ioctl resumed>) = 0 [pid 3700] <... ioctl resumed>) = 0 [pid 3697] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3701] mkdir("./file0", 0777 [pid 3700] mkdir("./file0", 0777 [pid 3701] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3700] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3701] pipe2( [pid 3700] pipe2( [pid 3701] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3700] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3701] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3700] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3701] <... write resumed>) = 21 [pid 3700] <... write resumed>) = 21 [pid 3701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3697] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3697] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3702 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3698] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3702 attached [pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3702] setpgid(0, 0) = 0 [pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3702] write(3, "1000", 4) = 4 [pid 3702] close(3) = 0 [pid 3702] memfd_create("syzkaller", 0) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3702] ftruncate(3, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3703 [pid 3702] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3698] exit_group(0 [pid 3702] <... openat resumed>) = 4 [pid 3698] <... exit_group resumed>) = ? [pid 3702] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3703 attached ) = 0 [pid 3703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3702] mkdir("./file0", 0777 [pid 3703] <... prctl resumed>) = 0 [pid 3702] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3703] setpgid(0, 0 [pid 3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3703] <... setpgid resumed>) = 0 [pid 3702] pipe2( [pid 3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3702] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3703] <... openat resumed>) = 3 [pid 3702] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3698] +++ exited with 0 +++ [pid 3703] write(3, "1000", 4 [pid 3702] <... write resumed>) = 21 [pid 3703] <... write resumed>) = 4 [pid 3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3703] close(3 [pid 3701] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3703] <... close resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3703] memfd_create("syzkaller", 0) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3703] ftruncate(3, 0 [pid 3701] exit_group(0 [pid 3616] <... ioctl resumed>) = 0 [pid 3703] <... ftruncate resumed>) = 0 [pid 3616] close(3 [pid 3703] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3701] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3703] <... openat resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3703] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3703] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 3703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3704 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3704 attached [pid 3703] pipe2( [pid 3701] +++ exited with 0 +++ [pid 3700] <... mount resumed>) = -1 EIO (Input/output error) [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3703] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3700] exit_group(0 [pid 3704] <... prctl resumed>) = 0 [pid 3703] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3700] <... exit_group resumed>) = ? [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3704] setpgid(0, 0 [pid 3703] <... write resumed>) = 21 [pid 3702] <... mount resumed>) = -1 EIO (Input/output error) [pid 3700] +++ exited with 0 +++ [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3704] <... setpgid resumed>) = 0 [pid 3703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3702] exit_group(0 [pid 3618] <... openat resumed>) = 3 [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3702] <... exit_group resumed>) = ? [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3704] <... openat resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3704] write(3, "1000", 4 [pid 3702] +++ exited with 0 +++ [pid 3617] <... restart_syscall resumed>) = 0 [pid 3704] <... write resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3704] close(3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3704] <... close resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3704] memfd_create("syzkaller", 0 [pid 3617] <... openat resumed>) = 3 [pid 3704] <... memfd_create resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3704] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3704] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3704] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3704] <... openat resumed>) = 4 [pid 3704] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3704] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3704] pipe2([5, 6], 0) = 0 [pid 3704] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3705 ./strace-static-x86_64: Process 3705 attached [pid 3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3705] setpgid(0, 0) = 0 [pid 3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3705] write(3, "1000", 4) = 4 [pid 3705] close(3) = 0 [pid 3705] memfd_create("syzkaller", 0) = 3 [pid 3705] ftruncate(3, 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3705] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3617] close(3 [pid 3705] <... openat resumed>) = 4 [pid 3619] close(3 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3705] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3705] <... ioctl resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3705] mkdir("./file0", 0777 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3706 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3707 [pid 3705] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3708 ./strace-static-x86_64: Process 3708 attached [pid 3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3705] pipe2( [pid 3708] <... prctl resumed>) = 0 [pid 3705] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3708] setpgid(0, 0 [pid 3705] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 3707 attached [pid 3708] <... setpgid resumed>) = 0 [pid 3705] <... write resumed>) = 21 [pid 3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3706 attached [pid 3707] <... prctl resumed>) = 0 [pid 3707] setpgid(0, 0 [pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3708] <... openat resumed>) = 3 [pid 3707] <... setpgid resumed>) = 0 [pid 3706] <... prctl resumed>) = 0 [pid 3703] <... mount resumed>) = -1 EIO (Input/output error) [pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3706] setpgid(0, 0 [pid 3707] <... openat resumed>) = 3 [pid 3706] <... setpgid resumed>) = 0 [pid 3707] write(3, "1000", 4 [pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3707] <... write resumed>) = 4 [pid 3706] <... openat resumed>) = 3 [pid 3707] close(3 [pid 3706] write(3, "1000", 4 [pid 3707] <... close resumed>) = 0 [pid 3706] <... write resumed>) = 4 [pid 3707] memfd_create("syzkaller", 0 [pid 3706] close(3 [pid 3708] write(3, "1000", 4 [pid 3707] <... memfd_create resumed>) = 3 [pid 3706] <... close resumed>) = 0 [pid 3703] exit_group(0 [pid 3708] <... write resumed>) = 4 [pid 3707] ftruncate(3, 0 [pid 3706] memfd_create("syzkaller", 0 [pid 3703] <... exit_group resumed>) = ? [pid 3708] close(3 [pid 3707] <... ftruncate resumed>) = 0 [pid 3706] <... memfd_create resumed>) = 3 [pid 3707] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3706] ftruncate(3, 0 [pid 3707] <... openat resumed>) = 4 [pid 3706] <... ftruncate resumed>) = 0 [pid 3707] ioctl(4, LOOP_SET_FD, 3 [pid 3706] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3708] <... close resumed>) = 0 [pid 3707] <... ioctl resumed>) = 0 [pid 3706] <... openat resumed>) = 4 [pid 3703] +++ exited with 0 +++ [pid 3708] memfd_create("syzkaller", 0 [pid 3707] mkdir("./file0", 0777 [pid 3706] ioctl(4, LOOP_SET_FD, 3 [pid 3708] <... memfd_create resumed>) = 3 [pid 3707] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3706] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3708] ftruncate(3, 0 [pid 3707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3706] mkdir("./file0", 0777 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3708] <... ftruncate resumed>) = 0 [pid 3707] pipe2( [pid 3706] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3704] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... restart_syscall resumed>) = 0 [pid 3707] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3707] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3706] pipe2( [pid 3707] <... write resumed>) = 21 [pid 3706] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3706] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... openat resumed>) = 3 [pid 3708] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3706] <... write resumed>) = 21 [pid 3704] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3708] <... openat resumed>) = 4 [pid 3704] <... exit_group resumed>) = ? [pid 3708] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3708] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3704] +++ exited with 0 +++ [pid 3708] pipe2([5, 6], 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3708] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3705] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3708] <... write resumed>) = 21 [pid 3705] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3705] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3705] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3706] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3706] exit_group(0 [pid 3620] close(3 [pid 3706] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3706] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3709 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3709 attached [pid 3615] <... ioctl resumed>) = 0 [pid 3709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] close(3 [pid 3709] <... prctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3709] setpgid(0, 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3709] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 3710 attached [pid 3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3707] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3710 [pid 3707] exit_group(0) = ? [pid 3709] <... openat resumed>) = 3 [pid 3707] +++ exited with 0 +++ [pid 3616] close(3 [pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3709] write(3, "1000", 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... close resumed>) = 0 [pid 3709] <... write resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3709] close(3) = 0 [pid 3709] memfd_create("syzkaller", 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3711 ./strace-static-x86_64: Process 3711 attached [pid 3617] <... openat resumed>) = 3 [pid 3709] <... memfd_create resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3709] ftruncate(3, 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3709] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] close(3 [pid 3709] <... openat resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 3709] ioctl(4, LOOP_SET_FD, 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3711] setpgid(0, 0) = 0 [pid 3709] <... ioctl resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3712 [pid 3709] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3709] pipe2([5, 6], 0) = 0 [pid 3709] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3709] <... write resumed>) = 21 ./strace-static-x86_64: Process 3712 attached [pid 3711] <... openat resumed>) = 3 [pid 3710] <... prctl resumed>) = 0 [pid 3709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3708] <... mount resumed>) = -1 EIO (Input/output error) [pid 3708] exit_group(0) = ? [pid 3708] +++ exited with 0 +++ [pid 3710] setpgid(0, 0 [pid 3711] write(3, "1000", 4 [pid 3710] <... setpgid resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3711] <... write resumed>) = 4 [pid 3711] close(3 [pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3710] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3710] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3711] <... close resumed>) = 0 [pid 3710] <... write resumed>) = 4 [pid 3710] close(3) = 0 [pid 3711] memfd_create("syzkaller", 0 [pid 3710] memfd_create("syzkaller", 0 [pid 3711] <... memfd_create resumed>) = 3 [pid 3710] <... memfd_create resumed>) = 3 [pid 3711] ftruncate(3, 0 [pid 3710] ftruncate(3, 0) = 0 [pid 3711] <... ftruncate resumed>) = 0 [pid 3710] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3711] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3710] <... openat resumed>) = 4 [pid 3711] <... openat resumed>) = 4 [pid 3710] ioctl(4, LOOP_SET_FD, 3 [pid 3711] ioctl(4, LOOP_SET_FD, 3 [pid 3712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3710] <... ioctl resumed>) = 0 [pid 3711] <... ioctl resumed>) = 0 [pid 3710] mkdir("./file0", 0777 [pid 3711] mkdir("./file0", 0777 [pid 3710] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3711] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3711] pipe2( [pid 3710] pipe2( [pid 3712] <... prctl resumed>) = 0 [pid 3711] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3710] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3711] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3710] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3711] <... write resumed>) = 21 [pid 3710] <... write resumed>) = 21 [pid 3709] <... mount resumed>) = -1 EIO (Input/output error) [pid 3711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3712] setpgid(0, 0) = 0 [pid 3709] exit_group(0 [pid 3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3712] write(3, "1000", 4) = 4 [pid 3709] <... exit_group resumed>) = ? [pid 3712] close(3) = 0 [pid 3712] memfd_create("syzkaller", 0) = 3 [pid 3712] ftruncate(3, 0) = 0 [pid 3712] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3712] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3712] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... ioctl resumed>) = 0 [pid 3712] pipe2([5, 6], 0) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3712] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3709] +++ exited with 0 +++ [pid 3619] close(3 [pid 3617] <... close resumed>) = 0 [pid 3712] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... close resumed>) = 0 [pid 3712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3711] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3713 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3714 [pid 3711] exit_group(0) = ? [pid 3711] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3714 attached ./strace-static-x86_64: Process 3713 attached [pid 3714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3714] setpgid(0, 0) = 0 [pid 3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3714] write(3, "1000", 4) = 4 [pid 3714] close(3) = 0 [pid 3714] memfd_create("syzkaller", 0) = 3 [pid 3714] ftruncate(3, 0) = 0 [pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3713] setpgid(0, 0 [pid 3714] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3713] <... setpgid resumed>) = 0 [pid 3714] <... openat resumed>) = 4 [pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3714] ioctl(4, LOOP_SET_FD, 3 [pid 3713] <... openat resumed>) = 3 [pid 3710] <... mount resumed>) = -1 EIO (Input/output error) [pid 3714] <... ioctl resumed>) = 0 [pid 3713] write(3, "1000", 4 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3714] mkdir("./file0", 0777 [pid 3713] <... write resumed>) = 4 [pid 3710] exit_group(0 [pid 3620] close(3 [pid 3616] close(3 [pid 3714] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3713] close(3 [pid 3712] <... mount resumed>) = -1 EIO (Input/output error) [pid 3710] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3713] <... close resumed>) = 0 [pid 3712] exit_group(0 [pid 3714] pipe2( [pid 3713] memfd_create("syzkaller", 0 [pid 3712] <... exit_group resumed>) = ? [pid 3710] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3714] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3713] <... memfd_create resumed>) = 3 [pid 3712] +++ exited with 0 +++ [pid 3713] ftruncate(3, 0 [pid 3714] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3713] <... ftruncate resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3715 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3714] <... write resumed>) = 21 [pid 3713] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3716 [pid 3615] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3716 attached [pid 3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3713] <... openat resumed>) = 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3715 attached [pid 3713] ioctl(4, LOOP_SET_FD, 3 [pid 3715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3713] <... ioctl resumed>) = 0 [pid 3715] <... prctl resumed>) = 0 [pid 3713] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3715] setpgid(0, 0 [pid 3713] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 3715] <... setpgid resumed>) = 0 [pid 3713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3713] pipe2( [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3715] <... openat resumed>) = 3 [pid 3713] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3715] write(3, "1000", 4 [pid 3713] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 3715] <... write resumed>) = 4 [pid 3713] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3715] close(3 [pid 3713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3716] <... prctl resumed>) = 0 [pid 3715] <... close resumed>) = 0 [pid 3715] memfd_create("syzkaller", 0 [pid 3716] setpgid(0, 0 [pid 3715] <... memfd_create resumed>) = 3 [pid 3715] ftruncate(3, 0 [pid 3716] <... setpgid resumed>) = 0 [pid 3715] <... ftruncate resumed>) = 0 [pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3715] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3715] ioctl(4, LOOP_SET_FD, 3 [pid 3716] <... openat resumed>) = 3 [pid 3715] <... ioctl resumed>) = 0 [pid 3716] write(3, "1000", 4 [pid 3715] mkdir("./file0", 0777 [pid 3716] <... write resumed>) = 4 [pid 3715] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3716] close(3 [pid 3715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3716] <... close resumed>) = 0 [pid 3715] pipe2( [pid 3716] memfd_create("syzkaller", 0 [pid 3715] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3716] <... memfd_create resumed>) = 3 [pid 3715] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3716] ftruncate(3, 0 [pid 3715] <... write resumed>) = 21 [pid 3716] <... ftruncate resumed>) = 0 [pid 3715] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3716] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3716] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3716] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3716] pipe2([5, 6], 0) = 0 [pid 3716] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3714] <... mount resumed>) = -1 EIO (Input/output error) [pid 3714] exit_group(0) = ? [pid 3714] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3618] close(3 [pid 3615] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3718 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3717 ./strace-static-x86_64: Process 3717 attached ./strace-static-x86_64: Process 3718 attached [pid 3717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3715] <... mount resumed>) = -1 EIO (Input/output error) [pid 3717] <... prctl resumed>) = 0 [pid 3717] setpgid(0, 0) = 0 [pid 3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3717] write(3, "1000", 4) = 4 [pid 3717] close(3) = 0 [pid 3717] memfd_create("syzkaller", 0) = 3 [pid 3717] ftruncate(3, 0) = 0 [pid 3717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3717] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3717] mkdir("./file0", 0777 [pid 3715] exit_group(0 [pid 3718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3715] <... exit_group resumed>) = ? [pid 3717] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3717] pipe2([5, 6], 0) = 0 [pid 3715] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3718] <... prctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3718] setpgid(0, 0 [pid 3620] <... openat resumed>) = 3 [pid 3718] <... setpgid resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3717] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3718] <... openat resumed>) = 3 [pid 3718] write(3, "1000", 4 [pid 3717] <... write resumed>) = 21 [pid 3718] <... write resumed>) = 4 [pid 3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3718] close(3) = 0 [pid 3718] memfd_create("syzkaller", 0) = 3 [pid 3718] ftruncate(3, 0) = 0 [pid 3718] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3718] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3718] mkdir("./file0", 0777 [pid 3713] <... mount resumed>) = -1 EIO (Input/output error) [pid 3713] exit_group(0) = ? [pid 3713] +++ exited with 0 +++ [pid 3617] <... ioctl resumed>) = 0 [pid 3718] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] close(3 [pid 3718] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... close resumed>) = 0 [pid 3718] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3718] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3718] <... write resumed>) = 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3719 [pid 3718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3719 attached [pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3719] setpgid(0, 0) = 0 [pid 3716] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3720 [pid 3716] exit_group(0) = ? ./strace-static-x86_64: Process 3720 attached [pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3716] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3720] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3719] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3720] <... prctl resumed>) = 0 [pid 3719] write(3, "1000", 4 [pid 3619] close(3 [pid 3720] setpgid(0, 0 [pid 3719] <... write resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3720] <... setpgid resumed>) = 0 [pid 3719] close(3 [pid 3619] <... close resumed>) = 0 [pid 3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3719] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3720] <... openat resumed>) = 3 [pid 3719] memfd_create("syzkaller", 0 [pid 3720] write(3, "1000", 4 [pid 3719] <... memfd_create resumed>) = 3 [pid 3720] <... write resumed>) = 4 [pid 3719] ftruncate(3, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3721 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3720] close(3 [pid 3719] <... ftruncate resumed>) = 0 [pid 3720] <... close resumed>) = 0 [pid 3719] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3721 attached [pid 3720] memfd_create("syzkaller", 0 [pid 3719] <... openat resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3720] <... memfd_create resumed>) = 3 [pid 3719] ioctl(4, LOOP_SET_FD, 3 [pid 3721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3720] ftruncate(3, 0 [pid 3719] <... ioctl resumed>) = 0 [pid 3721] <... prctl resumed>) = 0 [pid 3720] <... ftruncate resumed>) = 0 [pid 3719] mkdir("./file0", 0777 [pid 3717] <... mount resumed>) = -1 EIO (Input/output error) [pid 3720] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3719] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3717] exit_group(0 [pid 3720] <... openat resumed>) = 4 [pid 3719] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3717] <... exit_group resumed>) = ? [pid 3720] ioctl(4, LOOP_SET_FD, 3 [pid 3719] pipe2( [pid 3717] +++ exited with 0 +++ [pid 3720] <... ioctl resumed>) = 0 [pid 3719] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3720] mkdir("./file0", 0777 [pid 3719] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3720] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3719] <... write resumed>) = 21 [pid 3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3720] pipe2( [pid 3721] setpgid(0, 0 [pid 3720] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3721] <... setpgid resumed>) = 0 [pid 3720] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3720] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3721] <... openat resumed>) = 3 [pid 3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3721] write(3, "1000", 4) = 4 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3721] close(3) = 0 [pid 3721] memfd_create("syzkaller", 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3721] <... memfd_create resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3721] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3721] <... ftruncate resumed>) = 0 [pid 3721] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3721] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3721] mkdir("./file0", 0777 [pid 3718] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3721] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3718] exit_group(0 [pid 3616] close(3 [pid 3721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3718] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3721] pipe2( [pid 3718] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3722 attached [pid 3721] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3721] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3722 [pid 3615] close(3 [pid 3721] <... write resumed>) = 21 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3723 attached [pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3720] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3723 [pid 3722] <... prctl resumed>) = 0 [pid 3720] exit_group(0 [pid 3618] <... openat resumed>) = 3 [pid 3722] setpgid(0, 0 [pid 3720] <... exit_group resumed>) = ? [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3722] <... setpgid resumed>) = 0 [pid 3720] +++ exited with 0 +++ [pid 3723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3723] <... prctl resumed>) = 0 [pid 3722] <... openat resumed>) = 3 [pid 3723] setpgid(0, 0 [pid 3722] write(3, "1000", 4 [pid 3719] <... mount resumed>) = -1 EIO (Input/output error) [pid 3723] <... setpgid resumed>) = 0 [pid 3722] <... write resumed>) = 4 [pid 3719] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3722] close(3 [pid 3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3722] <... close resumed>) = 0 [pid 3721] <... mount resumed>) = -1 EIO (Input/output error) [pid 3719] <... exit_group resumed>) = ? [pid 3723] <... openat resumed>) = 3 [pid 3722] memfd_create("syzkaller", 0 [pid 3719] +++ exited with 0 +++ [pid 3723] write(3, "1000", 4 [pid 3722] <... memfd_create resumed>) = 3 [pid 3721] exit_group(0 [pid 3723] <... write resumed>) = 4 [pid 3722] ftruncate(3, 0 [pid 3721] <... exit_group resumed>) = ? [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3723] close(3 [pid 3722] <... ftruncate resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3723] <... close resumed>) = 0 [pid 3722] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3721] +++ exited with 0 +++ [pid 3617] <... restart_syscall resumed>) = 0 [pid 3723] memfd_create("syzkaller", 0 [pid 3722] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = 0 [pid 3617] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3723] <... memfd_create resumed>) = 3 [pid 3722] ioctl(4, LOOP_SET_FD, 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3723] ftruncate(3, 0 [pid 3722] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3724 [pid 3723] <... ftruncate resumed>) = 0 [pid 3722] mkdir("./file0", 0777 [pid 3723] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3722] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3724 attached [pid 3723] <... openat resumed>) = 4 [pid 3722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3724] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3723] ioctl(4, LOOP_SET_FD, 3 [pid 3722] pipe2( [pid 3618] close(3 [pid 3724] <... prctl resumed>) = 0 [pid 3723] <... ioctl resumed>) = 0 [pid 3722] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... close resumed>) = 0 [pid 3724] setpgid(0, 0 [pid 3723] mkdir("./file0", 0777 [pid 3722] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3724] <... setpgid resumed>) = 0 [pid 3723] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3722] <... write resumed>) = 21 [pid 3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3725 [pid 3724] <... openat resumed>) = 3 [pid 3723] pipe2([5, 6], 0) = 0 [pid 3724] write(3, "1000", 4 [pid 3723] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3724] <... write resumed>) = 4 [pid 3723] <... write resumed>) = 21 [pid 3724] close(3 [pid 3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3724] <... close resumed>) = 0 [pid 3724] memfd_create("syzkaller", 0) = 3 [pid 3724] ftruncate(3, 0) = 0 [pid 3724] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3724] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3724] mkdir("./file0", 0777./strace-static-x86_64: Process 3725 attached ) = -1 EEXIST (File exists) [pid 3620] <... ioctl resumed>) = 0 [pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] close(3 [pid 3725] <... prctl resumed>) = 0 [pid 3724] pipe2( [pid 3620] <... close resumed>) = 0 [pid 3725] setpgid(0, 0 [pid 3724] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3725] <... setpgid resumed>) = 0 [pid 3724] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3724] <... write resumed>) = 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3726 [pid 3725] <... openat resumed>) = 3 [pid 3724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3725] write(3, "1000", 4 [pid 3619] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3726 attached [pid 3725] <... write resumed>) = 4 [pid 3619] close(3 [pid 3726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3725] close(3 [pid 3619] <... close resumed>) = 0 [pid 3726] <... prctl resumed>) = 0 [pid 3725] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3726] setpgid(0, 0 [pid 3725] memfd_create("syzkaller", 0 [pid 3726] <... setpgid resumed>) = 0 [pid 3725] <... memfd_create resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3727 [pid 3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3725] ftruncate(3, 0 [pid 3726] <... openat resumed>) = 3 [pid 3725] <... ftruncate resumed>) = 0 [pid 3726] write(3, "1000", 4 [pid 3725] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3726] <... write resumed>) = 4 [pid 3725] <... openat resumed>) = 4 [pid 3726] close(3 [pid 3725] ioctl(4, LOOP_SET_FD, 3 [pid 3726] <... close resumed>) = 0 [pid 3725] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3727 attached [pid 3726] memfd_create("syzkaller", 0 [pid 3725] mkdir("./file0", 0777 [pid 3722] <... mount resumed>) = -1 EIO (Input/output error) [pid 3727] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3726] <... memfd_create resumed>) = 3 [pid 3725] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3726] ftruncate(3, 0 [pid 3725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3726] <... ftruncate resumed>) = 0 [pid 3725] pipe2( [pid 3726] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3725] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3726] <... openat resumed>) = 4 [pid 3725] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3726] ioctl(4, LOOP_SET_FD, 3 [pid 3725] <... write resumed>) = 21 [pid 3727] <... prctl resumed>) = 0 [pid 3726] <... ioctl resumed>) = 0 [pid 3725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3722] exit_group(0 [pid 3727] setpgid(0, 0 [pid 3726] mkdir("./file0", 0777 [pid 3722] <... exit_group resumed>) = ? [pid 3727] <... setpgid resumed>) = 0 [pid 3726] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3722] +++ exited with 0 +++ [pid 3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3726] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3727] <... openat resumed>) = 3 [pid 3726] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3726] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 3727] write(3, "1000", 4 [pid 3723] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3727] <... write resumed>) = 4 [pid 3727] close(3 [pid 3723] exit_group(0 [pid 3727] <... close resumed>) = 0 [pid 3727] memfd_create("syzkaller", 0 [pid 3723] <... exit_group resumed>) = ? [pid 3727] <... memfd_create resumed>) = 3 [pid 3727] ftruncate(3, 0 [pid 3723] +++ exited with 0 +++ [pid 3727] <... ftruncate resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3727] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3727] ioctl(4, LOOP_SET_FD, 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3727] <... ioctl resumed>) = 0 [pid 3724] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... openat resumed>) = 3 [pid 3727] mkdir("./file0", 0777 [pid 3724] exit_group(0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3727] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3724] <... exit_group resumed>) = ? [pid 3727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3724] +++ exited with 0 +++ [pid 3727] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3727] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3727] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3727] <... write resumed>) = 21 [pid 3727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3725] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3725] exit_group(0) = ? [pid 3725] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3728 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3729 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3730 ./strace-static-x86_64: Process 3729 attached ./strace-static-x86_64: Process 3728 attached [pid 3727] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3730 attached [pid 3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3730] setpgid(0, 0) = 0 [pid 3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3727] exit_group(0 [pid 3726] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3730] write(3, "1000", 4 [pid 3729] <... prctl resumed>) = 0 [pid 3728] <... prctl resumed>) = 0 [pid 3727] <... exit_group resumed>) = ? [pid 3726] exit_group(0 [pid 3618] close(3 [pid 3730] <... write resumed>) = 4 [pid 3729] setpgid(0, 0 [pid 3728] setpgid(0, 0 [pid 3727] +++ exited with 0 +++ [pid 3726] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3730] close(3 [pid 3729] <... setpgid resumed>) = 0 [pid 3728] <... setpgid resumed>) = 0 [pid 3726] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3730] <... close resumed>) = 0 [pid 3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3726, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3730] memfd_create("syzkaller", 0 [pid 3729] <... openat resumed>) = 3 [pid 3728] <... openat resumed>) = 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3731 [pid 3730] <... memfd_create resumed>) = 3 [pid 3729] write(3, "1000", 4 [pid 3728] write(3, "1000", 4 [pid 3619] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3731 attached [pid 3730] ftruncate(3, 0 [pid 3729] <... write resumed>) = 4 [pid 3728] <... write resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3730] <... ftruncate resumed>) = 0 [pid 3729] close(3 [pid 3728] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3731] <... prctl resumed>) = 0 [pid 3730] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3729] <... close resumed>) = 0 [pid 3728] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3731] setpgid(0, 0 [pid 3730] <... openat resumed>) = 4 [pid 3729] memfd_create("syzkaller", 0 [pid 3728] memfd_create("syzkaller", 0 [pid 3619] <... openat resumed>) = 3 [pid 3731] <... setpgid resumed>) = 0 [pid 3730] ioctl(4, LOOP_SET_FD, 3 [pid 3729] <... memfd_create resumed>) = 3 [pid 3728] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3730] <... ioctl resumed>) = 0 [pid 3729] ftruncate(3, 0 [pid 3728] ftruncate(3, 0 [pid 3731] <... openat resumed>) = 3 [pid 3730] mkdir("./file0", 0777 [pid 3729] <... ftruncate resumed>) = 0 [pid 3728] <... ftruncate resumed>) = 0 [pid 3731] write(3, "1000", 4 [pid 3730] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3729] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3728] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3731] <... write resumed>) = 4 [pid 3730] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3729] <... openat resumed>) = 4 [pid 3731] close(3 [pid 3730] pipe2( [pid 3729] ioctl(4, LOOP_SET_FD, 3 [pid 3728] <... openat resumed>) = 4 [pid 3731] <... close resumed>) = 0 [pid 3730] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3729] <... ioctl resumed>) = 0 [pid 3728] ioctl(4, LOOP_SET_FD, 3 [pid 3731] memfd_create("syzkaller", 0 [pid 3730] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3729] mkdir("./file0", 0777 [pid 3728] <... ioctl resumed>) = 0 [pid 3731] <... memfd_create resumed>) = 3 [pid 3730] <... write resumed>) = 21 [pid 3729] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3728] mkdir("./file0", 0777 [pid 3731] ftruncate(3, 0 [pid 3730] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3728] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3731] <... ftruncate resumed>) = 0 [pid 3729] pipe2( [pid 3728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3731] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3729] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3728] pipe2( [pid 3620] close(3 [pid 3619] close(3 [pid 3731] <... openat resumed>) = 4 [pid 3729] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3728] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3731] ioctl(4, LOOP_SET_FD, 3 [pid 3729] <... write resumed>) = 21 [pid 3728] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3731] <... ioctl resumed>) = 0 [pid 3729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3728] <... write resumed>) = 21 ./strace-static-x86_64: Process 3732 attached [pid 3731] mkdir("./file0", 0777 [pid 3728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3732 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3733 [pid 3732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3731] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3732] <... prctl resumed>) = 0 [pid 3731] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3733 attached [pid 3732] setpgid(0, 0 [pid 3731] pipe2( [pid 3733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3732] <... setpgid resumed>) = 0 [pid 3731] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3733] <... prctl resumed>) = 0 [pid 3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3731] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3733] setpgid(0, 0 [pid 3732] <... openat resumed>) = 3 [pid 3731] <... write resumed>) = 21 [pid 3733] <... setpgid resumed>) = 0 [pid 3732] write(3, "1000", 4 [pid 3731] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3732] <... write resumed>) = 4 [pid 3733] <... openat resumed>) = 3 [pid 3730] <... mount resumed>) = -1 EIO (Input/output error) [pid 3733] write(3, "1000", 4 [pid 3730] exit_group(0 [pid 3733] <... write resumed>) = 4 [pid 3730] <... exit_group resumed>) = ? [pid 3733] close(3 [pid 3730] +++ exited with 0 +++ [pid 3733] <... close resumed>) = 0 [pid 3733] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3733] <... memfd_create resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3733] ftruncate(3, 0 [pid 3732] close(3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3733] <... ftruncate resumed>) = 0 [pid 3732] <... close resumed>) = 0 [pid 3733] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3732] memfd_create("syzkaller", 0 [pid 3733] <... openat resumed>) = 4 [pid 3732] <... memfd_create resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3733] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... openat resumed>) = 3 [pid 3733] <... ioctl resumed>) = 0 [pid 3732] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3733] mkdir("./file0", 0777 [pid 3732] <... ftruncate resumed>) = 0 [pid 3733] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3732] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3732] <... openat resumed>) = 4 [pid 3733] pipe2( [pid 3732] ioctl(4, LOOP_SET_FD, 3 [pid 3733] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3733] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3732] <... ioctl resumed>) = 0 [pid 3728] <... mount resumed>) = -1 EIO (Input/output error) [pid 3732] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3728] exit_group(0 [pid 3732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3728] <... exit_group resumed>) = ? [pid 3732] pipe2([5, 6], 0) = 0 [pid 3732] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3728] +++ exited with 0 +++ [pid 3732] <... write resumed>) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3729] <... mount resumed>) = -1 EIO (Input/output error) [pid 3729] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3729] <... exit_group resumed>) = ? [pid 3729] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3615] close(3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3734 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3734 attached [pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3734] setpgid(0, 0) = 0 [pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3734] write(3, "1000", 4) = 4 [pid 3734] close(3) = 0 [pid 3734] memfd_create("syzkaller", 0) = 3 [pid 3734] ftruncate(3, 0 [pid 3731] <... mount resumed>) = -1 EIO (Input/output error) [pid 3734] <... ftruncate resumed>) = 0 [pid 3731] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3734] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3731] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 3734] <... openat resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 3734] ioctl(4, LOOP_SET_FD, 3 [pid 3731] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3734] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... ioctl resumed>) = 0 [pid 3734] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3735 [pid 3616] close(3./strace-static-x86_64: Process 3735 attached [pid 3734] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... close resumed>) = 0 [pid 3735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3735] <... prctl resumed>) = 0 [pid 3734] pipe2( [pid 3735] setpgid(0, 0 [pid 3734] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3736 [pid 3735] <... setpgid resumed>) = 0 [pid 3734] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 3736 attached [pid 3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3734] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 3736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3735] <... openat resumed>) = 3 [pid 3734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3736] <... prctl resumed>) = 0 [pid 3735] write(3, "1000", 4 [pid 3736] setpgid(0, 0 [pid 3735] <... write resumed>) = 4 [pid 3736] <... setpgid resumed>) = 0 [pid 3733] <... mount resumed>) = -1 EIO (Input/output error) [pid 3733] exit_group(0) = ? [pid 3733] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3735] close(3 [pid 3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3735] <... close resumed>) = 0 [pid 3736] <... openat resumed>) = 3 [pid 3736] write(3, "1000", 4 [pid 3735] memfd_create("syzkaller", 0 [pid 3736] <... write resumed>) = 4 [pid 3735] <... memfd_create resumed>) = 3 [pid 3736] close(3 [pid 3735] ftruncate(3, 0 [pid 3736] <... close resumed>) = 0 [pid 3735] <... ftruncate resumed>) = 0 [pid 3736] memfd_create("syzkaller", 0 [pid 3735] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3736] <... memfd_create resumed>) = 3 [pid 3735] <... openat resumed>) = 4 [pid 3736] ftruncate(3, 0 [pid 3735] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3736] <... ftruncate resumed>) = 0 [pid 3735] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3736] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3735] mkdir("./file0", 0777 [pid 3618] <... close resumed>) = 0 [pid 3736] <... openat resumed>) = 4 [pid 3735] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3736] ioctl(4, LOOP_SET_FD, 3 [pid 3735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3736] <... ioctl resumed>) = 0 [pid 3735] pipe2( [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3737 [pid 3736] mkdir("./file0", 0777 [pid 3735] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3732] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3737 attached [pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3736] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3735] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... ioctl resumed>) = 0 [pid 3737] <... prctl resumed>) = 0 [pid 3736] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3735] <... write resumed>) = 21 [pid 3619] close(3 [pid 3737] setpgid(0, 0 [pid 3736] pipe2( [pid 3735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3732] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3737] <... setpgid resumed>) = 0 [pid 3736] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3732] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3736] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3732] +++ exited with 0 +++ [pid 3737] <... openat resumed>) = 3 [pid 3736] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3738 [pid 3737] write(3, "1000", 4 [pid 3736] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3737] <... write resumed>) = 4 [pid 3737] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3737] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3737] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3737] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 3738 attached [pid 3737] ftruncate(3, 0) = 0 [pid 3737] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3737] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3737] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3737] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3737] pipe2([5, 6], 0) = 0 [pid 3737] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3734] <... mount resumed>) = -1 EIO (Input/output error) [pid 3738] <... prctl resumed>) = 0 [pid 3734] exit_group(0 [pid 3738] setpgid(0, 0 [pid 3734] <... exit_group resumed>) = ? [pid 3738] <... setpgid resumed>) = 0 [pid 3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3734] +++ exited with 0 +++ [pid 3738] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3738] write(3, "1000", 4 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3738] <... write resumed>) = 4 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3738] close(3) = 0 [pid 3738] memfd_create("syzkaller", 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3738] <... memfd_create resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3738] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3738] <... ftruncate resumed>) = 0 [pid 3738] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... ioctl resumed>) = 0 [pid 3738] <... openat resumed>) = 4 [pid 3620] close(3 [pid 3738] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... close resumed>) = 0 [pid 3738] <... ioctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3738] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3739 [pid 3738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3738] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 3739 attached [pid 3738] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3738] <... write resumed>) = 21 [pid 3737] <... mount resumed>) = -1 EIO (Input/output error) [pid 3737] exit_group(0) = ? [pid 3737] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3739] <... prctl resumed>) = 0 [pid 3739] setpgid(0, 0) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] close(3 [pid 3739] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3739] write(3, "1000", 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3740 [pid 3739] <... write resumed>) = 4 [pid 3739] close(3./strace-static-x86_64: Process 3740 attached [pid 3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3740] setpgid(0, 0) = 0 [pid 3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3740] write(3, "1000", 4) = 4 [pid 3740] close(3) = 0 [pid 3739] <... close resumed>) = 0 [pid 3736] <... mount resumed>) = -1 EIO (Input/output error) [pid 3740] memfd_create("syzkaller", 0 [pid 3739] memfd_create("syzkaller", 0 [pid 3740] <... memfd_create resumed>) = 3 [pid 3739] <... memfd_create resumed>) = 3 [pid 3736] exit_group(0 [pid 3740] ftruncate(3, 0 [pid 3739] ftruncate(3, 0 [pid 3736] <... exit_group resumed>) = ? [pid 3740] <... ftruncate resumed>) = 0 [pid 3739] <... ftruncate resumed>) = 0 [pid 3740] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3739] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3736] +++ exited with 0 +++ [pid 3740] <... openat resumed>) = 4 [pid 3739] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3740] ioctl(4, LOOP_SET_FD, 3 [pid 3739] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3740] <... ioctl resumed>) = 0 [pid 3739] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3740] mkdir("./file0", 0777 [pid 3739] mkdir("./file0", 0777 [pid 3618] <... close resumed>) = 0 [pid 3740] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3739] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3735] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3740] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3740] pipe2( [pid 3739] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3741 [pid 3616] <... openat resumed>) = 3 [pid 3740] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3739] pipe2( [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3740] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3739] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3735] exit_group(0 [pid 3740] <... write resumed>) = 21 [pid 3739] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3735] <... exit_group resumed>) = ? [pid 3740] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3739] <... write resumed>) = 21 ./strace-static-x86_64: Process 3741 attached [pid 3739] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3735] +++ exited with 0 +++ [pid 3741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3741] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3741] <... setpgid resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3741] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3741] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 3741] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3741] <... close resumed>) = 0 [pid 3741] memfd_create("syzkaller", 0) = 3 [pid 3741] ftruncate(3, 0) = 0 [pid 3741] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3741] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3741] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3738] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3741] pipe2( [pid 3738] exit_group(0 [pid 3616] close(3 [pid 3741] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3738] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3741] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3741] <... write resumed>) = 21 [pid 3738] +++ exited with 0 +++ [pid 3741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3738, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3742 ./strace-static-x86_64: Process 3742 attached [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... close resumed>) = 0 [pid 3742] <... prctl resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3742] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3742] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3743 [pid 3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3740] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3740] exit_group(0) = ? [pid 3742] <... openat resumed>) = 3 [pid 3740] +++ exited with 0 +++ [pid 3742] write(3, "1000", 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3742] <... write resumed>) = 4 [pid 3742] close(3) = 0 [pid 3742] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 3743 attached [pid 3742] ftruncate(3, 0 [pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3742] <... ftruncate resumed>) = 0 [pid 3742] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3743] <... prctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3742] <... openat resumed>) = 4 [pid 3743] setpgid(0, 0 [pid 3742] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... openat resumed>) = 3 [pid 3743] <... setpgid resumed>) = 0 [pid 3742] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3742] mkdir("./file0", 0777 [pid 3743] <... openat resumed>) = 3 [pid 3742] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3743] write(3, "1000", 4 [pid 3742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3743] <... write resumed>) = 4 [pid 3742] pipe2( [pid 3743] close(3 [pid 3742] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3743] <... close resumed>) = 0 [pid 3742] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3743] memfd_create("syzkaller", 0 [pid 3742] <... write resumed>) = 21 [pid 3743] <... memfd_create resumed>) = 3 [pid 3742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3743] ftruncate(3, 0) = 0 [pid 3743] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3743] ioctl(4, LOOP_SET_FD, 3 [pid 3739] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3743] <... ioctl resumed>) = 0 [pid 3739] exit_group(0 [pid 3619] close(3 [pid 3615] close(3 [pid 3743] mkdir("./file0", 0777 [pid 3739] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3743] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3744 [pid 3743] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3739] +++ exited with 0 +++ [pid 3743] pipe2( [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3745 ./strace-static-x86_64: Process 3745 attached ./strace-static-x86_64: Process 3744 attached [pid 3743] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3742] <... mount resumed>) = -1 EIO (Input/output error) [pid 3745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3743] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3742] exit_group(0 [pid 3745] <... prctl resumed>) = 0 [pid 3744] <... prctl resumed>) = 0 [pid 3743] <... write resumed>) = 21 [pid 3742] <... exit_group resumed>) = ? [pid 3745] setpgid(0, 0 [pid 3744] setpgid(0, 0 [pid 3743] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3742] +++ exited with 0 +++ [pid 3745] <... setpgid resumed>) = 0 [pid 3744] <... setpgid resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3745] <... openat resumed>) = 3 [pid 3744] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3745] write(3, "1000", 4 [pid 3744] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3745] <... write resumed>) = 4 [pid 3744] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 3745] close(3 [pid 3744] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3745] <... close resumed>) = 0 [pid 3744] <... close resumed>) = 0 [pid 3745] memfd_create("syzkaller", 0 [pid 3744] memfd_create("syzkaller", 0 [pid 3741] <... mount resumed>) = -1 EIO (Input/output error) [pid 3745] <... memfd_create resumed>) = 3 [pid 3741] exit_group(0) = ? [pid 3745] ftruncate(3, 0 [pid 3744] <... memfd_create resumed>) = 3 [pid 3741] +++ exited with 0 +++ [pid 3745] <... ftruncate resumed>) = 0 [pid 3744] ftruncate(3, 0 [pid 3745] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3744] <... ftruncate resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3745] <... openat resumed>) = 4 [pid 3744] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3745] ioctl(4, LOOP_SET_FD, 3 [pid 3744] <... openat resumed>) = 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3745] <... ioctl resumed>) = 0 [pid 3744] ioctl(4, LOOP_SET_FD, 3 [pid 3745] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3744] <... ioctl resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3744] mkdir("./file0", 0777 [pid 3618] <... openat resumed>) = 3 [pid 3745] pipe2( [pid 3744] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3745] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3745] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3744] pipe2( [pid 3745] <... write resumed>) = 21 [pid 3744] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3744] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3743] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3743] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3618] close(3 [pid 3616] <... close resumed>) = 0 [pid 3743] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3743] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3746 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3747 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3748 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3748 attached ./strace-static-x86_64: Process 3747 attached [pid 3748] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3747] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3746 attached [pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3748] <... prctl resumed>) = 0 [pid 3747] <... prctl resumed>) = 0 [pid 3746] <... prctl resumed>) = 0 [pid 3744] <... mount resumed>) = -1 EIO (Input/output error) [pid 3748] setpgid(0, 0 [pid 3747] setpgid(0, 0 [pid 3746] setpgid(0, 0 [pid 3745] <... mount resumed>) = -1 EIO (Input/output error) [pid 3744] exit_group(0 [pid 3748] <... setpgid resumed>) = 0 [pid 3747] <... setpgid resumed>) = 0 [pid 3746] <... setpgid resumed>) = 0 [pid 3745] exit_group(0 [pid 3744] <... exit_group resumed>) = ? [pid 3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3745] <... exit_group resumed>) = ? [pid 3748] <... openat resumed>) = 3 [pid 3747] <... openat resumed>) = 3 [pid 3746] <... openat resumed>) = 3 [pid 3744] +++ exited with 0 +++ [pid 3748] write(3, "1000", 4 [pid 3747] write(3, "1000", 4 [pid 3746] write(3, "1000", 4 [pid 3745] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3748] <... write resumed>) = 4 [pid 3747] <... write resumed>) = 4 [pid 3746] <... write resumed>) = 4 [pid 3748] close(3 [pid 3747] close(3 [pid 3746] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3748] <... close resumed>) = 0 [pid 3747] <... close resumed>) = 0 [pid 3746] <... close resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3748] memfd_create("syzkaller", 0 [pid 3747] memfd_create("syzkaller", 0 [pid 3746] memfd_create("syzkaller", 0 [pid 3619] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3748] <... memfd_create resumed>) = 3 [pid 3747] <... memfd_create resumed>) = 3 [pid 3746] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3748] ftruncate(3, 0 [pid 3747] ftruncate(3, 0 [pid 3746] ftruncate(3, 0 [pid 3748] <... ftruncate resumed>) = 0 [pid 3747] <... ftruncate resumed>) = 0 [pid 3746] <... ftruncate resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3748] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3747] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3746] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] close(3 [pid 3748] <... openat resumed>) = 4 [pid 3747] <... openat resumed>) = 4 [pid 3615] <... openat resumed>) = 3 [pid 3748] ioctl(4, LOOP_SET_FD, 3 [pid 3747] ioctl(4, LOOP_SET_FD, 3 [pid 3746] <... openat resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3748] <... ioctl resumed>) = 0 [pid 3747] <... ioctl resumed>) = 0 [pid 3746] ioctl(4, LOOP_SET_FD, 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3748] mkdir("./file0", 0777 [pid 3747] mkdir("./file0", 0777 [pid 3748] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3747] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3746] <... ioctl resumed>) = 0 [pid 3748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3748] pipe2( [pid 3747] pipe2( [pid 3746] mkdir("./file0", 0777 [pid 3748] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3747] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3746] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3749 [pid 3748] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3747] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3746] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3748] <... write resumed>) = 21 [pid 3747] <... write resumed>) = 21 [pid 3748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3746] pipe2(./strace-static-x86_64: Process 3749 attached [pid 3619] <... ioctl resumed>) = 0 [pid 3746] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] close(3 [pid 3746] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 3746] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3749] <... prctl resumed>) = 0 [pid 3746] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3749] setpgid(0, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3750 ./strace-static-x86_64: Process 3750 attached [pid 3750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3749] <... setpgid resumed>) = 0 [pid 3750] <... prctl resumed>) = 0 [pid 3750] setpgid(0, 0 [pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3750] <... setpgid resumed>) = 0 [pid 3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3749] <... openat resumed>) = 3 [pid 3749] write(3, "1000", 4) = 4 [pid 3750] <... openat resumed>) = 3 [pid 3749] close(3 [pid 3750] write(3, "1000", 4 [pid 3749] <... close resumed>) = 0 [pid 3750] <... write resumed>) = 4 [pid 3749] memfd_create("syzkaller", 0) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 3749] ftruncate(3, 0 [pid 3615] close(3 [pid 3749] <... ftruncate resumed>) = 0 [pid 3750] close(3 [pid 3749] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 3750] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3750] memfd_create("syzkaller", 0 [pid 3749] <... openat resumed>) = 4 [pid 3750] <... memfd_create resumed>) = 3 [pid 3750] ftruncate(3, 0) = 0 [pid 3750] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3749] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3751 [pid 3749] <... ioctl resumed>) = 0 [pid 3750] <... openat resumed>) = 4 [pid 3750] ioctl(4, LOOP_SET_FD, 3 [pid 3749] mkdir("./file0", 0777 [pid 3750] <... ioctl resumed>) = 0 [pid 3749] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3751 attached [pid 3750] mkdir("./file0", 0777 [pid 3749] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3750] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3749] pipe2( [pid 3751] <... prctl resumed>) = 0 [pid 3750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3751] setpgid(0, 0 [pid 3750] pipe2( [pid 3751] <... setpgid resumed>) = 0 [pid 3750] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3749] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3750] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3749] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3751] <... openat resumed>) = 3 [pid 3750] <... write resumed>) = 21 [pid 3749] <... write resumed>) = 21 [pid 3751] write(3, "1000", 4 [pid 3750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3748] <... mount resumed>) = -1 EIO (Input/output error) [pid 3747] <... mount resumed>) = -1 EIO (Input/output error) [pid 3751] <... write resumed>) = 4 [pid 3749] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3748] exit_group(0 [pid 3747] exit_group(0 [pid 3751] close(3 [pid 3748] <... exit_group resumed>) = ? [pid 3747] <... exit_group resumed>) = ? [pid 3751] <... close resumed>) = 0 [pid 3748] +++ exited with 0 +++ [pid 3751] memfd_create("syzkaller", 0 [pid 3747] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3746] <... mount resumed>) = -1 EIO (Input/output error) [pid 3751] <... memfd_create resumed>) = 3 [pid 3746] exit_group(0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3751] ftruncate(3, 0 [pid 3746] <... exit_group resumed>) = ? [pid 3751] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3751] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3746] +++ exited with 0 +++ [pid 3618] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3751] <... openat resumed>) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... openat resumed>) = 3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3620] <... restart_syscall resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3751] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3751] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3751] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3751] pipe2([5, 6], 0) = 0 [pid 3751] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3751] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3750] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3750] exit_group(0 [pid 3618] close(3 [pid 3750] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3750] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] close(3 [pid 3620] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3752 [pid 3616] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3750, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3754 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3753 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3754 attached ./strace-static-x86_64: Process 3752 attached [pid 3754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3749] <... mount resumed>) = -1 EIO (Input/output error) [pid 3754] <... prctl resumed>) = 0 [pid 3749] exit_group(0./strace-static-x86_64: Process 3753 attached [pid 3753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3749] <... exit_group resumed>) = ? [pid 3754] setpgid(0, 0 [pid 3753] <... prctl resumed>) = 0 [pid 3753] setpgid(0, 0) = 0 [pid 3754] <... setpgid resumed>) = 0 [pid 3749] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3753] <... openat resumed>) = 3 [pid 3753] write(3, "1000", 4 [pid 3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3753] <... write resumed>) = 4 [pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3753] close(3) = 0 [pid 3753] memfd_create("syzkaller", 0) = 3 [pid 3753] ftruncate(3, 0) = 0 [pid 3753] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3753] ioctl(4, LOOP_SET_FD, 3 [pid 3754] <... openat resumed>) = 3 [pid 3753] <... ioctl resumed>) = 0 [pid 3754] write(3, "1000", 4 [pid 3753] mkdir("./file0", 0777 [pid 3754] <... write resumed>) = 4 [pid 3753] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3752] <... prctl resumed>) = 0 [pid 3753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3754] close(3 [pid 3753] pipe2( [pid 3752] setpgid(0, 0 [pid 3754] <... close resumed>) = 0 [pid 3753] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3754] memfd_create("syzkaller", 0 [pid 3753] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3752] <... setpgid resumed>) = 0 [pid 3751] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3754] <... memfd_create resumed>) = 3 [pid 3753] <... write resumed>) = 21 [pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3751] exit_group(0 [pid 3619] close(3 [pid 3617] close(3 [pid 3754] ftruncate(3, 0 [pid 3752] <... openat resumed>) = 3 [pid 3751] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3754] <... ftruncate resumed>) = 0 [pid 3753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3752] write(3, "1000", 4 [pid 3751] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3754] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3752] <... write resumed>) = 4 [pid 3754] <... openat resumed>) = 4 [pid 3752] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3755 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3756 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3754] ioctl(4, LOOP_SET_FD, 3 [pid 3752] <... close resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3754] <... ioctl resumed>) = 0 [pid 3752] memfd_create("syzkaller", 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3754] mkdir("./file0", 0777 [pid 3752] <... memfd_create resumed>) = 3 [pid 3754] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3752] ftruncate(3, 0 [pid 3754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3752] <... ftruncate resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3754] pipe2( [pid 3752] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 3754] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3752] <... openat resumed>) = 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3754] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3752] ioctl(4, LOOP_SET_FD, 3 [pid 3754] <... write resumed>) = 21 [pid 3752] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3755 attached [pid 3754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3752] mkdir("./file0", 0777 [pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3752] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3755] <... prctl resumed>) = 0 [pid 3752] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3755] setpgid(0, 0 [pid 3752] pipe2( [pid 3755] <... setpgid resumed>) = 0 [pid 3752] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3752] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3755] <... openat resumed>) = 3 [pid 3752] <... write resumed>) = 21 [pid 3755] write(3, "1000", 4 [pid 3752] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3755] <... write resumed>) = 4 [pid 3755] close(3) = 0 [pid 3755] memfd_create("syzkaller", 0) = 3 [pid 3755] ftruncate(3, 0) = 0 [pid 3755] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3755] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 3756 attached [pid 3755] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3755] pipe2([5, 6], 0) = 0 [pid 3755] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3756] <... prctl resumed>) = 0 [pid 3755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3756] setpgid(0, 0) = 0 [pid 3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3756] write(3, "1000", 4) = 4 [pid 3756] close(3) = 0 [pid 3756] memfd_create("syzkaller", 0) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 3756] ftruncate(3, 0 [pid 3615] close(3 [pid 3756] <... ftruncate resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3756] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3756] <... openat resumed>) = 4 [pid 3756] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3757 [pid 3756] <... ioctl resumed>) = 0 [pid 3756] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3756] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 3757 attached [pid 3756] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3753] <... mount resumed>) = -1 EIO (Input/output error) [pid 3757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3756] <... write resumed>) = 21 [pid 3753] exit_group(0) = ? [pid 3757] <... prctl resumed>) = 0 [pid 3756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3753] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3757] setpgid(0, 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3757] <... setpgid resumed>) = 0 [pid 3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3757] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3757] write(3, "1000", 4) = 4 [pid 3757] close(3) = 0 [pid 3757] memfd_create("syzkaller", 0) = 3 [pid 3757] ftruncate(3, 0) = 0 [pid 3757] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3757] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3757] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3757] pipe2( [pid 3752] <... mount resumed>) = -1 EIO (Input/output error) [pid 3757] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3752] exit_group(0 [pid 3757] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3752] <... exit_group resumed>) = ? [pid 3757] <... write resumed>) = 21 [pid 3752] +++ exited with 0 +++ [pid 3757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3755] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] close(3) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3755] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3755] <... exit_group resumed>) = ? [pid 3755] +++ exited with 0 +++ [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3758 ./strace-static-x86_64: Process 3758 attached [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3758] <... prctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3758] setpgid(0, 0) = 0 [pid 3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3754] <... mount resumed>) = -1 EIO (Input/output error) [pid 3754] exit_group(0) = ? [pid 3754] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3758] write(3, "1000", 4) = 4 [pid 3758] close(3) = 0 [pid 3758] memfd_create("syzkaller", 0) = 3 [pid 3758] ftruncate(3, 0) = 0 [pid 3758] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3758] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3758] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3758] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3758] pipe2([5, 6], 0) = 0 [pid 3758] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3759 ./strace-static-x86_64: Process 3759 attached [pid 3759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3759] setpgid(0, 0) = 0 [pid 3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3759] write(3, "1000", 4) = 4 [pid 3759] close(3) = 0 [pid 3759] memfd_create("syzkaller", 0) = 3 [pid 3759] ftruncate(3, 0) = 0 [pid 3759] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3759] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3759] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3759] pipe2([5, 6], 0) = 0 [pid 3759] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3757] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3757] exit_group(0 [pid 3620] close(3 [pid 3619] close(3 [pid 3757] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3757] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3760 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3761 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3761 attached [pid 3761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3761] setpgid(0, 0) = 0 [pid 3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3761] write(3, "1000", 4) = 4 [pid 3761] close(3) = 0 [pid 3761] memfd_create("syzkaller", 0) = 3 [pid 3761] ftruncate(3, 0) = 0 [pid 3761] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3761] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3761] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3761] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3761] pipe2([5, 6], 0) = 0 [pid 3761] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3761] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3760 attached [pid 3756] <... mount resumed>) = -1 EIO (Input/output error) [pid 3760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3756] exit_group(0 [pid 3760] <... prctl resumed>) = 0 [pid 3756] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 3760] setpgid(0, 0 [pid 3756] +++ exited with 0 +++ [pid 3760] <... setpgid resumed>) = 0 [pid 3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3760] write(3, "1000", 4) = 4 [pid 3760] close(3 [pid 3615] close(3 [pid 3760] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... close resumed>) = 0 [pid 3760] memfd_create("syzkaller", 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3760] <... memfd_create resumed>) = 3 [pid 3759] <... mount resumed>) = -1 EIO (Input/output error) [pid 3760] ftruncate(3, 0) = 0 [pid 3760] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3760] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3760] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3760] pipe2([5, 6], 0) = 0 [pid 3760] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3759] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3762 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3759] <... exit_group resumed>) = ? [pid 3759] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3759, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3758] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3758] exit_group(0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3758] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3762 attached [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3758] +++ exited with 0 +++ [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3758, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3762] <... prctl resumed>) = 0 [pid 3762] setpgid(0, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3762] <... setpgid resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3762] write(3, "1000", 4) = 4 [pid 3762] close(3) = 0 [pid 3762] memfd_create("syzkaller", 0) = 3 [pid 3762] ftruncate(3, 0) = 0 [pid 3761] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3762] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3762] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3761] exit_group(0 [pid 3618] close(3 [pid 3617] close(3 [pid 3616] close(3 [pid 3762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3762] pipe2([5, 6], 0) = 0 [pid 3762] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3761] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3761] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3763 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3764 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3765 [pid 3760] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3764 attached [pid 3764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3764] setpgid(0, 0) = 0 [pid 3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3760] exit_group(0./strace-static-x86_64: Process 3765 attached ./strace-static-x86_64: Process 3763 attached [pid 3764] <... openat resumed>) = 3 [pid 3760] <... exit_group resumed>) = ? [pid 3764] write(3, "1000", 4) = 4 [pid 3760] +++ exited with 0 +++ [pid 3764] close(3 [pid 3765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3764] <... close resumed>) = 0 [pid 3763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3760, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3765] <... prctl resumed>) = 0 [pid 3764] memfd_create("syzkaller", 0 [pid 3763] <... prctl resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3764] <... memfd_create resumed>) = 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3764] ftruncate(3, 0) = 0 [pid 3763] setpgid(0, 0 [pid 3764] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3764] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3764] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3764] <... ioctl resumed>) = 0 [pid 3764] mkdir("./file0", 0777 [pid 3765] setpgid(0, 0 [pid 3764] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3763] <... setpgid resumed>) = 0 [pid 3764] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3765] <... setpgid resumed>) = 0 [pid 3764] pipe2( [pid 3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3764] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3763] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3765] <... openat resumed>) = 3 [pid 3764] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3763] write(3, "1000", 4 [pid 3619] close(3 [pid 3765] write(3, "1000", 4 [pid 3764] <... write resumed>) = 21 [pid 3763] <... write resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3765] <... write resumed>) = 4 [pid 3764] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3763] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3765] close(3 [pid 3763] <... close resumed>) = 0 [pid 3765] <... close resumed>) = 0 [pid 3763] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3766 ./strace-static-x86_64: Process 3766 attached [pid 3765] memfd_create("syzkaller", 0 [pid 3763] <... memfd_create resumed>) = 3 [pid 3762] <... mount resumed>) = -1 EIO (Input/output error) [pid 3766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3765] <... memfd_create resumed>) = 3 [pid 3763] ftruncate(3, 0 [pid 3762] exit_group(0 [pid 3766] <... prctl resumed>) = 0 [pid 3765] ftruncate(3, 0 [pid 3763] <... ftruncate resumed>) = 0 [pid 3762] <... exit_group resumed>) = ? [pid 3766] setpgid(0, 0 [pid 3765] <... ftruncate resumed>) = 0 [pid 3763] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3766] <... setpgid resumed>) = 0 [pid 3765] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3763] <... openat resumed>) = 4 [pid 3762] +++ exited with 0 +++ [pid 3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3765] <... openat resumed>) = 4 [pid 3763] ioctl(4, LOOP_SET_FD, 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3762, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3766] <... openat resumed>) = 3 [pid 3765] ioctl(4, LOOP_SET_FD, 3 [pid 3764] <... mount resumed>) = -1 EIO (Input/output error) [pid 3763] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3766] write(3, "1000", 4 [pid 3765] <... ioctl resumed>) = 0 [pid 3764] exit_group(0 [pid 3763] mkdir("./file0", 0777 [pid 3620] <... ioctl resumed>) = 0 [pid 3766] <... write resumed>) = 4 [pid 3765] mkdir("./file0", 0777 [pid 3764] <... exit_group resumed>) = ? [pid 3763] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] close(3 [pid 3766] close(3 [pid 3765] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3764] +++ exited with 0 +++ [pid 3763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... close resumed>) = 0 [pid 3766] <... close resumed>) = 0 [pid 3765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3763] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3764, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3766] memfd_create("syzkaller", 0 [pid 3765] pipe2( [pid 3763] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3766] <... memfd_create resumed>) = 3 [pid 3765] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3763] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3767 [pid 3617] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3767 attached [pid 3766] ftruncate(3, 0 [pid 3765] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3763] <... write resumed>) = 21 [pid 3767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3766] <... ftruncate resumed>) = 0 [pid 3765] <... write resumed>) = 21 [pid 3763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3767] <... prctl resumed>) = 0 [pid 3766] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3766] <... openat resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3767] setpgid(0, 0 [pid 3766] ioctl(4, LOOP_SET_FD, 3 [pid 3767] <... setpgid resumed>) = 0 [pid 3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3766] <... ioctl resumed>) = 0 [pid 3767] <... openat resumed>) = 3 [pid 3766] mkdir("./file0", 0777 [pid 3767] write(3, "1000", 4 [pid 3766] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3767] <... write resumed>) = 4 [pid 3766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3767] close(3 [pid 3766] pipe2( [pid 3767] <... close resumed>) = 0 [pid 3766] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3767] memfd_create("syzkaller", 0 [pid 3766] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3767] <... memfd_create resumed>) = 3 [pid 3766] <... write resumed>) = 21 [pid 3767] ftruncate(3, 0 [pid 3766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3767] <... ftruncate resumed>) = 0 [pid 3767] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3767] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3768 ./strace-static-x86_64: Process 3768 attached [pid 3768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3767] <... ioctl resumed>) = 0 [pid 3768] <... prctl resumed>) = 0 [pid 3767] mkdir("./file0", 0777 [pid 3768] setpgid(0, 0 [pid 3767] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3768] <... setpgid resumed>) = 0 [pid 3767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3765] <... mount resumed>) = -1 EIO (Input/output error) [pid 3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3767] pipe2( [pid 3765] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3767] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3765] <... exit_group resumed>) = ? [pid 3768] <... openat resumed>) = 3 [pid 3767] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3765] +++ exited with 0 +++ [pid 3617] close(3 [pid 3767] <... write resumed>) = 21 [pid 3767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3768] write(3, "1000", 4 [pid 3617] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3765, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3768] <... write resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3769 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3768] close(3) = 0 [pid 3768] memfd_create("syzkaller", 0) = 3 [pid 3768] ftruncate(3, 0) = 0 [pid 3768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3768] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3769 attached ) = 0 [pid 3769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3769] setpgid(0, 0) = 0 [pid 3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3768] mkdir("./file0", 0777 [pid 3763] <... mount resumed>) = -1 EIO (Input/output error) [pid 3769] <... openat resumed>) = 3 [pid 3768] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3768] pipe2( [pid 3769] write(3, "1000", 4) = 4 [pid 3768] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3769] close(3) = 0 [pid 3769] memfd_create("syzkaller", 0 [pid 3768] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3769] <... memfd_create resumed>) = 3 [pid 3763] exit_group(0) = ? [pid 3769] ftruncate(3, 0) = 0 [pid 3769] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3769] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3769] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3769] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3769] pipe2([5, 6], 0) = 0 [pid 3769] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3763] +++ exited with 0 +++ [pid 3769] <... write resumed>) = 21 [pid 3769] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3770 [pid 3766] <... mount resumed>) = -1 EIO (Input/output error) [pid 3766] exit_group(0) = ? ./strace-static-x86_64: Process 3770 attached [pid 3770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3766] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3770] <... prctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3770] setpgid(0, 0) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3770] <... openat resumed>) = 3 [pid 3770] write(3, "1000", 4) = 4 [pid 3770] close(3) = 0 [pid 3770] memfd_create("syzkaller", 0) = 3 [pid 3770] ftruncate(3, 0) = 0 [pid 3770] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3770] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3770] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3767] <... mount resumed>) = -1 EIO (Input/output error) [pid 3770] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3770] pipe2([5, 6], 0) = 0 [pid 3770] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3770] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3771 [pid 3767] exit_group(0) = ? ./strace-static-x86_64: Process 3771 attached [pid 3771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3771] setpgid(0, 0) = 0 [pid 3769] <... mount resumed>) = -1 EIO (Input/output error) [pid 3767] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3772 [pid 3769] exit_group(0) = ? [pid 3769] +++ exited with 0 +++ ./strace-static-x86_64: Process 3772 attached [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3768] <... mount resumed>) = -1 EIO (Input/output error) [pid 3772] <... prctl resumed>) = 0 [pid 3772] setpgid(0, 0) = 0 [pid 3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3772] write(3, "1000", 4) = 4 [pid 3772] close(3) = 0 [pid 3772] memfd_create("syzkaller", 0) = 3 [pid 3772] ftruncate(3, 0) = 0 [pid 3772] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3772] ioctl(4, LOOP_SET_FD, 3 [pid 3771] <... openat resumed>) = 3 [pid 3768] exit_group(0 [pid 3772] <... ioctl resumed>) = 0 [pid 3772] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3768] <... exit_group resumed>) = ? [pid 3772] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3772] pipe2([5, 6], 0) = 0 [pid 3772] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3771] write(3, "1000", 4 [pid 3772] <... write resumed>) = 21 [pid 3771] <... write resumed>) = 4 [pid 3768] +++ exited with 0 +++ [pid 3772] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3771] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3768, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3771] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3771] memfd_create("syzkaller", 0) = 3 [pid 3771] ftruncate(3, 0) = 0 [pid 3771] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 3771] <... openat resumed>) = 4 [pid 3620] <... ioctl resumed>) = 0 [pid 3771] ioctl(4, LOOP_SET_FD, 3 [pid 3620] close(3 [pid 3617] close(3 [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3771] <... ioctl resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3774 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3773 [pid 3771] mkdir("./file0", 0777./strace-static-x86_64: Process 3774 attached ) = -1 EEXIST (File exists) [pid 3771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3771] pipe2([5, 6], 0) = 0 [pid 3771] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3774] <... prctl resumed>) = 0 [pid 3774] setpgid(0, 0 [pid 3770] <... mount resumed>) = -1 EIO (Input/output error) [pid 3774] <... setpgid resumed>) = 0 [pid 3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3774] write(3, "1000", 4) = 4 [pid 3774] close(3) = 0 [pid 3774] memfd_create("syzkaller", 0) = 3 [pid 3774] ftruncate(3, 0) = 0 [pid 3774] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3774] ioctl(4, LOOP_SET_FD, 3 [pid 3770] exit_group(0) = ? [pid 3770] +++ exited with 0 +++ [pid 3774] <... ioctl resumed>) = 0 [pid 3774] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3774] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... openat resumed>) = 3 [pid 3774] pipe2( [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3774] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3774] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3773 attached [pid 3772] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3773] <... prctl resumed>) = 0 [pid 3772] exit_group(0 [pid 3615] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3775 [pid 3773] setpgid(0, 0 [pid 3772] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3773] <... setpgid resumed>) = 0 [pid 3772] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3773] <... openat resumed>) = 3 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3773] write(3, "1000", 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3776 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3773] <... write resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 3773] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3775 attached [pid 3773] <... close resumed>) = 0 [pid 3773] memfd_create("syzkaller", 0) = 3 [pid 3773] ftruncate(3, 0./strace-static-x86_64: Process 3776 attached ) = 0 [pid 3773] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3773] <... openat resumed>) = 4 [pid 3773] ioctl(4, LOOP_SET_FD, 3 [pid 3775] <... prctl resumed>) = 0 [pid 3776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3773] <... ioctl resumed>) = 0 [pid 3776] <... prctl resumed>) = 0 [pid 3775] setpgid(0, 0 [pid 3773] mkdir("./file0", 0777 [pid 3776] setpgid(0, 0 [pid 3773] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3776] <... setpgid resumed>) = 0 [pid 3773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3775] <... setpgid resumed>) = 0 [pid 3773] pipe2( [pid 3776] <... openat resumed>) = 3 [pid 3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3773] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3771] <... mount resumed>) = -1 EIO (Input/output error) [pid 3776] write(3, "1000", 4 [pid 3771] exit_group(0 [pid 3775] <... openat resumed>) = 3 [pid 3776] <... write resumed>) = 4 [pid 3773] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3771] <... exit_group resumed>) = ? [pid 3776] close(3 [pid 3775] write(3, "1000", 4 [pid 3773] <... write resumed>) = 21 [pid 3771] +++ exited with 0 +++ [pid 3776] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3771, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3776] memfd_create("syzkaller", 0 [pid 3775] <... write resumed>) = 4 [pid 3773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3776] <... memfd_create resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3776] ftruncate(3, 0 [pid 3775] close(3 [pid 3776] <... ftruncate resumed>) = 0 [pid 3775] <... close resumed>) = 0 [pid 3776] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3776] <... openat resumed>) = 4 [pid 3775] memfd_create("syzkaller", 0 [pid 3774] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3776] ioctl(4, LOOP_SET_FD, 3 [pid 3774] exit_group(0 [pid 3619] close(3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3776] <... ioctl resumed>) = 0 [pid 3774] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3776] mkdir("./file0", 0777 [pid 3774] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3776] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3774, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3776] pipe2( [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3776] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3776] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3775] <... memfd_create resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3777 attached [pid 3777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3775] ftruncate(3, 0) = 0 [pid 3775] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3775] ioctl(4, LOOP_SET_FD, 3 [pid 3777] <... prctl resumed>) = 0 [pid 3775] <... ioctl resumed>) = 0 [pid 3775] mkdir("./file0", 0777 [pid 3777] setpgid(0, 0 [pid 3775] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3775] pipe2( [pid 3777] <... setpgid resumed>) = 0 [pid 3775] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3775] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3777] <... openat resumed>) = 3 [pid 3775] <... write resumed>) = 21 [pid 3777] write(3, "1000", 4 [pid 3775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3777] <... write resumed>) = 4 [pid 3777] close(3) = 0 [pid 3777] memfd_create("syzkaller", 0) = 3 [pid 3777] ftruncate(3, 0) = 0 [pid 3777] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3777] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3777] pipe2([5, 6], 0) = 0 [pid 3777] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3773] <... mount resumed>) = -1 EIO (Input/output error) [pid 3773] exit_group(0) = ? [pid 3773] +++ exited with 0 +++ [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] close(3 [pid 3617] close(3 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3778 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3779 [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3779 attached [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3779] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 3778 attached [pid 3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3779] write(3, "1000", 4) = 4 [pid 3779] close(3) = 0 [pid 3779] memfd_create("syzkaller", 0) = 3 [pid 3778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3779] ftruncate(3, 0) = 0 [pid 3779] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3778] <... prctl resumed>) = 0 [pid 3779] mkdir("./file0", 0777 [pid 3778] setpgid(0, 0 [pid 3779] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3778] <... setpgid resumed>) = 0 [pid 3779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3779] pipe2( [pid 3778] <... openat resumed>) = 3 [pid 3779] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3778] write(3, "1000", 4 [pid 3779] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3778] <... write resumed>) = 4 [pid 3779] <... write resumed>) = 21 [pid 3778] close(3 [pid 3779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3778] <... close resumed>) = 0 [pid 3778] memfd_create("syzkaller", 0) = 3 [pid 3778] ftruncate(3, 0) = 0 [pid 3778] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3778] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3778] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3778] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3778] pipe2([5, 6], 0) = 0 [pid 3778] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3778] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3775] <... mount resumed>) = -1 EIO (Input/output error) [pid 3775] exit_group(0) = ? [pid 3775] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3780 attached ) = 3 [pid 3777] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3780 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3777] exit_group(0 [pid 3780] <... prctl resumed>) = 0 [pid 3777] <... exit_group resumed>) = ? [pid 3780] setpgid(0, 0 [pid 3777] +++ exited with 0 +++ [pid 3780] <... setpgid resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3777, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3780] write(3, "1000", 4) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3780] close(3) = 0 [pid 3780] memfd_create("syzkaller", 0) = 3 [pid 3780] ftruncate(3, 0) = 0 [pid 3780] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3780] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3780] pipe2([5, 6], 0) = 0 [pid 3780] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3776] <... mount resumed>) = -1 EIO (Input/output error) [pid 3776] exit_group(0) = ? [pid 3776] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3619] close(3 [pid 3616] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3781 attached [pid 3781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3781 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3782 [pid 3781] <... prctl resumed>) = 0 [pid 3781] setpgid(0, 0) = 0 [pid 3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3781] write(3, "1000", 4) = 4 [pid 3781] close(3) = 0 [pid 3781] memfd_create("syzkaller", 0) = 3 [pid 3781] ftruncate(3, 0) = 0 [pid 3781] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 ./strace-static-x86_64: Process 3782 attached [pid 3782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3781] ioctl(4, LOOP_SET_FD, 3 [pid 3782] <... prctl resumed>) = 0 [pid 3781] <... ioctl resumed>) = 0 [pid 3782] setpgid(0, 0 [pid 3781] mkdir("./file0", 0777 [pid 3782] <... setpgid resumed>) = 0 [pid 3781] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3782] <... openat resumed>) = 3 [pid 3781] pipe2( [pid 3780] <... mount resumed>) = -1 EIO (Input/output error) [pid 3782] write(3, "1000", 4 [pid 3781] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3782] <... write resumed>) = 4 [pid 3781] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3782] close(3 [pid 3781] <... write resumed>) = 21 [pid 3782] <... close resumed>) = 0 [pid 3781] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3780] exit_group(0 [pid 3782] memfd_create("syzkaller", 0 [pid 3780] <... exit_group resumed>) = ? [pid 3782] <... memfd_create resumed>) = 3 [pid 3782] ftruncate(3, 0) = 0 [pid 3782] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3615] <... ioctl resumed>) = 0 [pid 3782] ioctl(4, LOOP_SET_FD, 3 [pid 3615] close(3 [pid 3782] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3782] mkdir("./file0", 0777 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3782] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3780] +++ exited with 0 +++ [pid 3782] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3783 [pid 3782] pipe2( [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3780, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3782] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3782] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] <... openat resumed>) = 3 [pid 3782] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3783 attached [pid 3783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3783] setpgid(0, 0) = 0 [pid 3783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3783] write(3, "1000", 4) = 4 [pid 3783] close(3) = 0 [pid 3783] memfd_create("syzkaller", 0) = 3 [pid 3783] ftruncate(3, 0) = 0 [pid 3783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3783] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3783] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3783] pipe2([5, 6], 0) = 0 [pid 3783] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3779] <... mount resumed>) = -1 EIO (Input/output error) [pid 3779] exit_group(0) = ? [pid 3779] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3778] <... mount resumed>) = -1 EIO (Input/output error) [pid 3778] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3778] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3778] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3784 ./strace-static-x86_64: Process 3784 attached [pid 3784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3784] setpgid(0, 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3783] <... mount resumed>) = -1 EIO (Input/output error) [pid 3783] exit_group(0) = ? [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... openat resumed>) = 3 [pid 3783] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3783, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3784] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3784] write(3, "1000", 4) = 4 [pid 3784] close(3) = 0 [pid 3784] memfd_create("syzkaller", 0) = 3 [pid 3784] ftruncate(3, 0) = 0 [pid 3784] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3784] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3784] pipe2([5, 6], 0) = 0 [pid 3784] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3782] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3782] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3782] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3785 [pid 3782] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3782, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 3785 attached [pid 3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3785] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3785] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3785] write(3, "1000", 4) = 4 [pid 3785] close(3) = 0 [pid 3785] memfd_create("syzkaller", 0) = 3 [pid 3785] ftruncate(3, 0) = 0 [pid 3785] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3785] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3785] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3785] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3785] pipe2( [pid 3781] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3785] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3781] exit_group(0 [pid 3618] close(3 [pid 3615] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3785] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3781] <... exit_group resumed>) = ? [pid 3785] <... write resumed>) = 21 [pid 3619] close(3 [pid 3781] +++ exited with 0 +++ [pid 3785] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3787 ./strace-static-x86_64: Process 3786 attached [pid 3786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3786] setpgid(0, 0) = 0 [pid 3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3786 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3788 ./strace-static-x86_64: Process 3788 attached ./strace-static-x86_64: Process 3787 attached [pid 3784] <... mount resumed>) = -1 EIO (Input/output error) [pid 3784] exit_group(0) = ? [pid 3784] +++ exited with 0 +++ [pid 3786] <... openat resumed>) = 3 [pid 3786] write(3, "1000", 4) = 4 [pid 3786] close(3) = 0 [pid 3786] memfd_create("syzkaller", 0) = 3 [pid 3786] ftruncate(3, 0) = 0 [pid 3786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3786] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3786] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3786] pipe2([5, 6], 0) = 0 [pid 3786] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3784, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3788] <... prctl resumed>) = 0 [pid 3787] <... prctl resumed>) = 0 [pid 3788] setpgid(0, 0 [pid 3787] setpgid(0, 0 [pid 3788] <... setpgid resumed>) = 0 [pid 3787] <... setpgid resumed>) = 0 [pid 3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3788] <... openat resumed>) = 3 [pid 3787] <... openat resumed>) = 3 [pid 3787] write(3, "1000", 4 [pid 3788] write(3, "1000", 4 [pid 3785] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3616] close(3) = 0 [pid 3620] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3789 attached [pid 3788] <... write resumed>) = 4 [pid 3787] <... write resumed>) = 4 [pid 3785] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3789 ./strace-static-x86_64: Process 3790 attached [pid 3789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3788] close(3 [pid 3787] close(3 [pid 3785] <... exit_group resumed>) = ? [pid 3790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3789] <... prctl resumed>) = 0 [pid 3788] <... close resumed>) = 0 [pid 3787] <... close resumed>) = 0 [pid 3785] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3790 [pid 3790] <... prctl resumed>) = 0 [pid 3789] setpgid(0, 0 [pid 3788] memfd_create("syzkaller", 0 [pid 3787] memfd_create("syzkaller", 0 [pid 3790] setpgid(0, 0 [pid 3789] <... setpgid resumed>) = 0 [pid 3788] <... memfd_create resumed>) = 3 [pid 3787] <... memfd_create resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3785, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3790] <... setpgid resumed>) = 0 [pid 3789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3788] ftruncate(3, 0 [pid 3787] ftruncate(3, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3789] <... openat resumed>) = 3 [pid 3788] <... ftruncate resumed>) = 0 [pid 3787] <... ftruncate resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3790] <... openat resumed>) = 3 [pid 3789] write(3, "1000", 4 [pid 3788] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3787] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3790] write(3, "1000", 4 [pid 3789] <... write resumed>) = 4 [pid 3788] <... openat resumed>) = 4 [pid 3787] <... openat resumed>) = 4 [pid 3789] close(3 [pid 3788] ioctl(4, LOOP_SET_FD, 3 [pid 3787] ioctl(4, LOOP_SET_FD, 3 [pid 3789] <... close resumed>) = 0 [pid 3788] <... ioctl resumed>) = 0 [pid 3787] <... ioctl resumed>) = 0 [pid 3789] memfd_create("syzkaller", 0 [pid 3788] mkdir("./file0", 0777 [pid 3787] mkdir("./file0", 0777 [pid 3790] <... write resumed>) = 4 [pid 3789] <... memfd_create resumed>) = 3 [pid 3788] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3787] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3790] close(3 [pid 3789] ftruncate(3, 0 [pid 3788] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3790] <... close resumed>) = 0 [pid 3789] <... ftruncate resumed>) = 0 [pid 3788] pipe2( [pid 3787] pipe2( [pid 3790] memfd_create("syzkaller", 0 [pid 3789] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3788] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3787] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3790] <... memfd_create resumed>) = 3 [pid 3789] <... openat resumed>) = 4 [pid 3788] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3787] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3790] ftruncate(3, 0 [pid 3789] ioctl(4, LOOP_SET_FD, 3 [pid 3788] <... write resumed>) = 21 [pid 3787] <... write resumed>) = 21 [pid 3790] <... ftruncate resumed>) = 0 [pid 3789] <... ioctl resumed>) = 0 [pid 3788] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3787] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3786] <... mount resumed>) = -1 EIO (Input/output error) [pid 3790] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3789] mkdir("./file0", 0777 [pid 3786] exit_group(0 [pid 3790] <... openat resumed>) = 4 [pid 3789] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3790] ioctl(4, LOOP_SET_FD, 3 [pid 3789] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3786] <... exit_group resumed>) = ? [pid 3789] pipe2([5, 6], 0) = 0 [pid 3790] <... ioctl resumed>) = 0 [pid 3789] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3789] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3790] mkdir("./file0", 0777 [pid 3786] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3786, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3790] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3790] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3790] pipe2([5, 6], 0) = 0 [pid 3790] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3790] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3617] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3791 ./strace-static-x86_64: Process 3791 attached [pid 3791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3791] setpgid(0, 0) = 0 [pid 3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3791] write(3, "1000", 4) = 4 [pid 3791] close(3) = 0 [pid 3791] memfd_create("syzkaller", 0) = 3 [pid 3791] ftruncate(3, 0) = 0 [pid 3791] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3791] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3791] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3791] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3791] pipe2([5, 6], 0) = 0 [pid 3791] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3791] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3788] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3788] exit_group(0 [pid 3615] close(3 [pid 3788] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3788] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3788, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3792 [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3792 attached [pid 3792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3792] setpgid(0, 0 [pid 3790] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3792] <... setpgid resumed>) = 0 [pid 3790] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3790] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3793 [pid 3792] <... openat resumed>) = 3 [pid 3790] +++ exited with 0 +++ [pid 3792] write(3, "1000", 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3790, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3792] <... write resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3792] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3792] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3792] memfd_create("syzkaller", 0) = 3 [pid 3792] ftruncate(3, 0) = 0 [pid 3792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3792] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 3793 attached [pid 3792] mkdir("./file0", 0777 [pid 3787] <... mount resumed>) = -1 EIO (Input/output error) [pid 3792] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3787] exit_group(0 [pid 3793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3787] <... exit_group resumed>) = ? [pid 3793] <... prctl resumed>) = 0 [pid 3792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3787] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3787, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3793] setpgid(0, 0 [pid 3792] pipe2( [pid 3793] <... setpgid resumed>) = 0 [pid 3792] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3793] <... openat resumed>) = 3 [pid 3792] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3793] write(3, "1000", 4 [pid 3792] <... write resumed>) = 21 [pid 3793] <... write resumed>) = 4 [pid 3792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3793] close(3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3793] <... close resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3794 [pid 3793] memfd_create("syzkaller", 0) = 3 [pid 3793] ftruncate(3, 0) = 0 [pid 3793] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3793] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3793] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3793] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3793] pipe2(./strace-static-x86_64: Process 3794 attached [5, 6], 0) = 0 [pid 3791] <... mount resumed>) = -1 EIO (Input/output error) [pid 3793] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3791] exit_group(0 [pid 3794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3791] <... exit_group resumed>) = ? [pid 3794] <... prctl resumed>) = 0 [pid 3793] <... write resumed>) = 21 [pid 3791] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3791, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3794] setpgid(0, 0 [pid 3793] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3794] <... setpgid resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3794] <... openat resumed>) = 3 [pid 3794] write(3, "1000", 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3795 [pid 3794] <... write resumed>) = 4 ./strace-static-x86_64: Process 3795 attached [pid 3794] close(3 [pid 3789] <... mount resumed>) = -1 EIO (Input/output error) [pid 3789] exit_group(0 [pid 3795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3794] <... close resumed>) = 0 [pid 3789] <... exit_group resumed>) = ? [pid 3795] <... prctl resumed>) = 0 [pid 3794] memfd_create("syzkaller", 0 [pid 3789] +++ exited with 0 +++ [pid 3795] setpgid(0, 0 [pid 3794] <... memfd_create resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3789, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3795] <... setpgid resumed>) = 0 [pid 3794] ftruncate(3, 0 [pid 3795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3794] <... ftruncate resumed>) = 0 [pid 3795] <... openat resumed>) = 3 [pid 3794] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3792] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3795] write(3, "1000", 4 [pid 3794] <... openat resumed>) = 4 [pid 3792] exit_group(0 [pid 3795] <... write resumed>) = 4 [pid 3794] ioctl(4, LOOP_SET_FD, 3 [pid 3792] <... exit_group resumed>) = ? [pid 3616] <... openat resumed>) = 3 [pid 3795] close(3 [pid 3794] <... ioctl resumed>) = 0 [pid 3792] +++ exited with 0 +++ [pid 3795] <... close resumed>) = 0 [pid 3794] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3792, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3795] memfd_create("syzkaller", 0 [pid 3794] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3793] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3795] <... memfd_create resumed>) = 3 [pid 3794] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] close(3 [pid 3795] ftruncate(3, 0 [pid 3794] pipe2( [pid 3795] <... ftruncate resumed>) = 0 [pid 3794] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3795] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3794] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3795] <... openat resumed>) = 4 [pid 3794] <... write resumed>) = 21 [pid 3795] ioctl(4, LOOP_SET_FD, 3 [pid 3794] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3795] <... ioctl resumed>) = 0 [pid 3793] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3795] mkdir("./file0", 0777 [pid 3794] <... mount resumed>) = -1 EIO (Input/output error) [pid 3795] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3794] exit_group(0 [pid 3795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3794] <... exit_group resumed>) = ? [pid 3795] pipe2( [pid 3794] +++ exited with 0 +++ [pid 3793] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3795] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3795] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3793] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3794, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3793, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3796 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3797 ./strace-static-x86_64: Process 3796 attached [pid 3796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3796] <... prctl resumed>) = 0 [pid 3796] setpgid(0, 0) = 0 [pid 3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3796] <... openat resumed>) = 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3795] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3795] exit_group(0 [pid 3796] write(3, "1000", 4 [pid 3795] <... exit_group resumed>) = ? [pid 3796] <... write resumed>) = 4 [pid 3796] close(3) = 0 [pid 3796] memfd_create("syzkaller", 0 [pid 3795] +++ exited with 0 +++ [pid 3796] <... memfd_create resumed>) = 3 [pid 3796] ftruncate(3, 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3795, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3796] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3796] <... openat resumed>) = 4 [pid 3796] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3796] <... ioctl resumed>) = 0 [pid 3796] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3796] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3796] pipe2( [pid 3618] <... openat resumed>) = 3 [pid 3796] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3796] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3796] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3797 attached [pid 3797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3797] setpgid(0, 0) = 0 [pid 3796] <... mount resumed>) = -1 EIO (Input/output error) [pid 3796] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3796] <... exit_group resumed>) = ? [pid 3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3797] <... openat resumed>) = 3 [pid 3620] close(3 [pid 3619] close(3 [pid 3618] close(3 [pid 3615] close(3 [pid 3796] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3796, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 3797] write(3, "1000", 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3797] <... write resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3799 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3798 [pid 3797] close(3) = 0 [pid 3797] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3800 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3801 [pid 3797] <... memfd_create resumed>) = 3 [pid 3797] ftruncate(3, 0) = 0 [pid 3797] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3798 attached ) = 4 [pid 3798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3797] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3797] mkdir("./file0", 0777 [pid 3798] <... prctl resumed>) = 0 [pid 3797] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3797] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3797] pipe2([5, 6], 0) = 0 [pid 3797] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3797] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3798] setpgid(0, 0) = 0 [pid 3798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3798] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3800 attached [pid 3798] close(3 [pid 3800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3798] <... close resumed>) = 0 [pid 3800] <... prctl resumed>) = 0 [pid 3798] memfd_create("syzkaller", 0 [pid 3800] setpgid(0, 0 [pid 3798] <... memfd_create resumed>) = 3 [pid 3800] <... setpgid resumed>) = 0 [pid 3798] ftruncate(3, 0 [pid 3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3798] <... ftruncate resumed>) = 0 [pid 3800] <... openat resumed>) = 3 [pid 3798] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3800] write(3, "1000", 4 [pid 3798] <... openat resumed>) = 4 [pid 3800] <... write resumed>) = 4 [pid 3798] ioctl(4, LOOP_SET_FD, 3 [pid 3800] close(3 [pid 3798] <... ioctl resumed>) = 0 [pid 3800] <... close resumed>) = 0 [pid 3798] mkdir("./file0", 0777 [pid 3800] memfd_create("syzkaller", 0 [pid 3798] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3800] <... memfd_create resumed>) = 3 [pid 3798] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3800] ftruncate(3, 0 [pid 3798] pipe2( [pid 3800] <... ftruncate resumed>) = 0 [pid 3798] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3800] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3798] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3800] <... openat resumed>) = 4 [pid 3798] <... write resumed>) = 21 [pid 3800] ioctl(4, LOOP_SET_FD, 3 [pid 3798] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3800] <... ioctl resumed>) = 0 [pid 3800] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3800] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3800] pipe2([5, 6], 0) = 0 [pid 3800] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3800] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3801 attached ./strace-static-x86_64: Process 3799 attached [pid 3801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3799] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3801] <... prctl resumed>) = 0 [pid 3801] setpgid(0, 0 [pid 3799] setpgid(0, 0 [pid 3801] <... setpgid resumed>) = 0 [pid 3799] <... setpgid resumed>) = 0 [pid 3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3799] <... openat resumed>) = 3 [pid 3801] write(3, "1000", 4) = 4 [pid 3799] write(3, "1000", 4 [pid 3801] close(3 [pid 3799] <... write resumed>) = 4 [pid 3797] <... mount resumed>) = -1 EIO (Input/output error) [pid 3801] <... close resumed>) = 0 [pid 3799] close(3 [pid 3801] memfd_create("syzkaller", 0 [pid 3799] <... close resumed>) = 0 [pid 3801] <... memfd_create resumed>) = 3 [pid 3799] memfd_create("syzkaller", 0 [pid 3801] ftruncate(3, 0 [pid 3799] <... memfd_create resumed>) = 3 [pid 3797] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3801] <... ftruncate resumed>) = 0 [pid 3799] ftruncate(3, 0 [pid 3797] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 3801] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3799] <... ftruncate resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3801] <... openat resumed>) = 4 [pid 3799] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3801] ioctl(4, LOOP_SET_FD, 3 [pid 3799] <... openat resumed>) = 4 [pid 3799] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3802 [pid 3801] <... ioctl resumed>) = 0 [pid 3801] mkdir("./file0", 0777 [pid 3799] <... ioctl resumed>) = 0 [pid 3801] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3801] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3799] mkdir("./file0", 0777 [pid 3801] pipe2( [pid 3799] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3797] +++ exited with 0 +++ ./strace-static-x86_64: Process 3802 attached [pid 3801] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3799] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3801] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3799] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3797, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3802] <... prctl resumed>) = 0 [pid 3801] <... write resumed>) = 21 [pid 3799] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3802] setpgid(0, 0 [pid 3801] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3799] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3802] <... setpgid resumed>) = 0 [pid 3800] <... mount resumed>) = -1 EIO (Input/output error) [pid 3800] exit_group(0) = ? [pid 3799] <... write resumed>) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3800] +++ exited with 0 +++ [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3802] <... openat resumed>) = 3 [pid 3799] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3802] write(3, "1000", 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3800, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3802] <... write resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3802] close(3 [pid 3619] <... openat resumed>) = 3 [pid 3802] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3802] memfd_create("syzkaller", 0) = 3 [pid 3798] <... mount resumed>) = -1 EIO (Input/output error) [pid 3802] ftruncate(3, 0) = 0 [pid 3802] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3802] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3802] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3802] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3802] pipe2([5, 6], 0) = 0 [pid 3802] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3802] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3798] exit_group(0) = ? [pid 3798] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3798, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3801] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3801] exit_group(0 [pid 3619] close(3 [pid 3616] close(3 [pid 3801] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3801] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3801, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3803 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3804 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 3804 attached [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3803 attached [pid 3804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3804] setpgid(0, 0 [pid 3803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3804] <... setpgid resumed>) = 0 [pid 3803] <... prctl resumed>) = 0 [pid 3804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3803] setpgid(0, 0 [pid 3804] <... openat resumed>) = 3 [pid 3803] <... setpgid resumed>) = 0 [pid 3804] write(3, "1000", 4 [pid 3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3804] <... write resumed>) = 4 [pid 3803] <... openat resumed>) = 3 [pid 3804] close(3 [pid 3803] write(3, "1000", 4 [pid 3804] <... close resumed>) = 0 [pid 3803] <... write resumed>) = 4 [pid 3618] <... ioctl resumed>) = 0 [pid 3804] memfd_create("syzkaller", 0 [pid 3803] close(3 [pid 3618] close(3 [pid 3804] <... memfd_create resumed>) = 3 [pid 3803] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3804] ftruncate(3, 0 [pid 3803] memfd_create("syzkaller", 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3804] <... ftruncate resumed>) = 0 [pid 3803] <... memfd_create resumed>) = 3 [pid 3804] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3803] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3805 ./strace-static-x86_64: Process 3805 attached [pid 3804] <... openat resumed>) = 4 [pid 3803] <... ftruncate resumed>) = 0 [pid 3805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3804] ioctl(4, LOOP_SET_FD, 3 [pid 3803] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3805] <... prctl resumed>) = 0 [pid 3804] <... ioctl resumed>) = 0 [pid 3803] <... openat resumed>) = 4 [pid 3805] setpgid(0, 0 [pid 3804] mkdir("./file0", 0777 [pid 3803] ioctl(4, LOOP_SET_FD, 3 [pid 3799] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3805] <... setpgid resumed>) = 0 [pid 3804] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3803] <... ioctl resumed>) = 0 [pid 3799] exit_group(0 [pid 3615] close(3 [pid 3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3804] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3803] mkdir("./file0", 0777 [pid 3799] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3805] <... openat resumed>) = 3 [pid 3804] pipe2( [pid 3803] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3799] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3805] write(3, "1000", 4 [pid 3804] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3803] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3805] <... write resumed>) = 4 [pid 3804] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3803] pipe2( [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3799, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3806 ./strace-static-x86_64: Process 3806 attached [pid 3805] close(3 [pid 3804] <... write resumed>) = 21 [pid 3803] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3805] <... close resumed>) = 0 [pid 3804] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3803] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3805] memfd_create("syzkaller", 0 [pid 3803] <... write resumed>) = 21 [pid 3806] <... prctl resumed>) = 0 [pid 3806] setpgid(0, 0 [pid 3805] <... memfd_create resumed>) = 3 [pid 3803] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3806] <... setpgid resumed>) = 0 [pid 3805] ftruncate(3, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3805] <... ftruncate resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3806] <... openat resumed>) = 3 [pid 3805] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3806] write(3, "1000", 4 [pid 3805] <... openat resumed>) = 4 [pid 3806] <... write resumed>) = 4 [pid 3805] ioctl(4, LOOP_SET_FD, 3 [pid 3806] close(3 [pid 3805] <... ioctl resumed>) = 0 [pid 3806] <... close resumed>) = 0 [pid 3805] mkdir("./file0", 0777 [pid 3806] memfd_create("syzkaller", 0 [pid 3805] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3806] <... memfd_create resumed>) = 3 [pid 3805] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3806] ftruncate(3, 0 [pid 3805] pipe2( [pid 3802] <... mount resumed>) = -1 EIO (Input/output error) [pid 3802] exit_group(0) = ? [pid 3802] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3802, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3806] <... ftruncate resumed>) = 0 [pid 3805] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3806] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3805] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3806] <... openat resumed>) = 4 [pid 3805] <... write resumed>) = 21 [pid 3806] ioctl(4, LOOP_SET_FD, 3 [pid 3805] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3806] <... ioctl resumed>) = 0 [pid 3806] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3806] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3806] pipe2([5, 6], 0) = 0 [pid 3806] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3806] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3803] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3803] exit_group(0 [pid 3620] close(3 [pid 3803] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3803] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3807 ./strace-static-x86_64: Process 3807 attached [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3803, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3804] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3804] exit_group(0 [pid 3617] close(3 [pid 3804] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3804] +++ exited with 0 +++ [pid 3807] <... prctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3808 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3804, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 3808 attached [pid 3807] setpgid(0, 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3807] <... setpgid resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3808] <... prctl resumed>) = 0 [pid 3807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] close(3 [pid 3808] setpgid(0, 0 [pid 3807] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 3808] <... setpgid resumed>) = 0 [pid 3807] write(3, "1000", 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3807] <... write resumed>) = 4 [pid 3808] <... openat resumed>) = 3 [pid 3807] close(3 [pid 3805] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3808] write(3, "1000", 4 [pid 3807] <... close resumed>) = 0 [pid 3805] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3809 [pid 3616] <... openat resumed>) = 3 [pid 3808] <... write resumed>) = 4 [pid 3807] memfd_create("syzkaller", 0 [pid 3805] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3808] close(3 [pid 3807] <... memfd_create resumed>) = 3 [pid 3805] +++ exited with 0 +++ [pid 3808] <... close resumed>) = 0 [pid 3807] ftruncate(3, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3805, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3808] memfd_create("syzkaller", 0 [pid 3807] <... ftruncate resumed>) = 0 [pid 3808] <... memfd_create resumed>) = 3 [pid 3807] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3808] ftruncate(3, 0 [pid 3807] <... openat resumed>) = 4 ./strace-static-x86_64: Process 3809 attached [pid 3808] <... ftruncate resumed>) = 0 [pid 3807] ioctl(4, LOOP_SET_FD, 3 [pid 3809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3808] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3807] <... ioctl resumed>) = 0 [pid 3809] <... prctl resumed>) = 0 [pid 3808] <... openat resumed>) = 4 [pid 3807] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3807] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 3807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3807] pipe2([5, 6], 0) = 0 [pid 3809] setpgid(0, 0 [pid 3808] ioctl(4, LOOP_SET_FD, 3 [pid 3807] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3809] <... setpgid resumed>) = 0 [pid 3808] <... ioctl resumed>) = 0 [pid 3807] <... write resumed>) = 21 [pid 3809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3808] mkdir("./file0", 0777 [pid 3807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3806] <... mount resumed>) = -1 EIO (Input/output error) [pid 3809] <... openat resumed>) = 3 [pid 3808] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3806] exit_group(0 [pid 3809] write(3, "1000", 4 [pid 3808] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3806] <... exit_group resumed>) = ? [pid 3809] <... write resumed>) = 4 [pid 3808] pipe2( [pid 3809] close(3 [pid 3808] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3806] +++ exited with 0 +++ [pid 3809] <... close resumed>) = 0 [pid 3808] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3809] memfd_create("syzkaller", 0 [pid 3808] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3806, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3809] <... memfd_create resumed>) = 3 [pid 3808] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3809] ftruncate(3, 0 [pid 3618] close(3 [pid 3616] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3809] <... ftruncate resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3809] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3809] <... openat resumed>) = 4 [pid 3809] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3810 [pid 3809] <... ioctl resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3811 [pid 3809] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3809] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3810 attached [pid 3809] pipe2( [pid 3807] <... mount resumed>) = -1 EIO (Input/output error) [pid 3807] exit_group(0./strace-static-x86_64: Process 3811 attached ) = ? [pid 3811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3807] +++ exited with 0 +++ [pid 3811] <... prctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3807, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3811] setpgid(0, 0) = 0 [pid 3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3809] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3811] write(3, "1000", 4 [pid 3810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3809] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3811] <... write resumed>) = 4 [pid 3810] <... prctl resumed>) = 0 [pid 3809] <... write resumed>) = 21 [pid 3811] close(3 [pid 3810] setpgid(0, 0 [pid 3809] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3811] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3811] memfd_create("syzkaller", 0 [pid 3810] <... setpgid resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3811] <... memfd_create resumed>) = 3 [pid 3811] ftruncate(3, 0 [pid 3810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3811] <... ftruncate resumed>) = 0 [pid 3810] <... openat resumed>) = 3 [pid 3811] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3810] write(3, "1000", 4 [pid 3811] <... openat resumed>) = 4 [pid 3811] ioctl(4, LOOP_SET_FD, 3 [pid 3810] <... write resumed>) = 4 [pid 3811] <... ioctl resumed>) = 0 [pid 3811] mkdir("./file0", 0777 [pid 3810] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 3811] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3810] <... close resumed>) = 0 [pid 3615] close(3 [pid 3811] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3810] memfd_create("syzkaller", 0 [pid 3615] <... close resumed>) = 0 [pid 3811] pipe2( [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3811] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3811] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3810] <... memfd_create resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3812 [pid 3811] <... write resumed>) = 21 [pid 3810] ftruncate(3, 0 [pid 3811] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3810] <... ftruncate resumed>) = 0 [pid 3810] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3810] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3812 attached ) = 0 [pid 3810] mkdir("./file0", 0777 [pid 3808] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3812] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3812] setpgid(0, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3812] <... setpgid resumed>) = 0 [pid 3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3813 [pid 3812] <... openat resumed>) = 3 [pid 3812] write(3, "1000", 4) = 4 [pid 3812] close(3) = 0 [pid 3812] memfd_create("syzkaller", 0 [pid 3810] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3808] exit_group(0 [pid 3812] <... memfd_create resumed>) = 3 [pid 3810] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3808] <... exit_group resumed>) = ? [pid 3812] ftruncate(3, 0 [pid 3810] pipe2( [pid 3812] <... ftruncate resumed>) = 0 [pid 3810] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3808] +++ exited with 0 +++ ./strace-static-x86_64: Process 3813 attached [pid 3812] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3810] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3808, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3812] <... openat resumed>) = 4 [pid 3810] <... write resumed>) = 21 [pid 3813] <... prctl resumed>) = 0 [pid 3812] ioctl(4, LOOP_SET_FD, 3 [pid 3810] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3809] <... mount resumed>) = -1 EIO (Input/output error) [pid 3813] setpgid(0, 0 [pid 3812] <... ioctl resumed>) = 0 [pid 3809] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3813] <... setpgid resumed>) = 0 [pid 3812] mkdir("./file0", 0777 [pid 3809] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3812] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3812] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3809] +++ exited with 0 +++ [pid 3813] <... openat resumed>) = 3 [pid 3813] write(3, "1000", 4 [pid 3812] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3809, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3813] <... write resumed>) = 4 [pid 3812] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3813] close(3 [pid 3812] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3813] <... close resumed>) = 0 [pid 3812] <... write resumed>) = 21 [pid 3813] memfd_create("syzkaller", 0 [pid 3812] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3813] <... memfd_create resumed>) = 3 [pid 3813] ftruncate(3, 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3813] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 3813] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3813] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3813] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3813] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3813] pipe2([5, 6], 0) = 0 [pid 3813] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3813] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3811] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3811] exit_group(0 [pid 3617] close(3 [pid 3811] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3811] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3814 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3811, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3814 attached [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3815 [pid 3814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... openat resumed>) = 3 [pid 3814] <... prctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3814] setpgid(0, 0) = 0 [pid 3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3814] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3815 attached [pid 3814] close(3 [pid 3815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3814] <... close resumed>) = 0 [pid 3815] <... prctl resumed>) = 0 [pid 3814] memfd_create("syzkaller", 0 [pid 3810] <... mount resumed>) = -1 EIO (Input/output error) [pid 3815] setpgid(0, 0 [pid 3814] <... memfd_create resumed>) = 3 [pid 3815] <... setpgid resumed>) = 0 [pid 3814] ftruncate(3, 0 [pid 3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3814] <... ftruncate resumed>) = 0 [pid 3815] <... openat resumed>) = 3 [pid 3814] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3815] write(3, "1000", 4 [pid 3814] <... openat resumed>) = 4 [pid 3815] <... write resumed>) = 4 [pid 3814] ioctl(4, LOOP_SET_FD, 3 [pid 3815] close(3 [pid 3814] <... ioctl resumed>) = 0 [pid 3815] <... close resumed>) = 0 [pid 3814] mkdir("./file0", 0777 [pid 3810] exit_group(0 [pid 3815] memfd_create("syzkaller", 0 [pid 3814] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3810] <... exit_group resumed>) = ? [pid 3815] <... memfd_create resumed>) = 3 [pid 3814] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3815] ftruncate(3, 0 [pid 3814] pipe2( [pid 3810] +++ exited with 0 +++ [pid 3815] <... ftruncate resumed>) = 0 [pid 3814] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3810, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3815] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3814] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3815] <... openat resumed>) = 4 [pid 3814] <... write resumed>) = 21 [pid 3815] ioctl(4, LOOP_SET_FD, 3 [pid 3814] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3815] <... ioctl resumed>) = 0 [pid 3813] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3815] mkdir("./file0", 0777 [pid 3813] exit_group(0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3816 ./strace-static-x86_64: Process 3816 attached [pid 3815] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3815] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3813] <... exit_group resumed>) = ? [pid 3815] pipe2( [pid 3816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3816] setpgid(0, 0) = 0 [pid 3813] +++ exited with 0 +++ [pid 3815] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3815] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3813, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3815] <... write resumed>) = 21 [pid 3816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3815] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3816] <... openat resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3816] write(3, "1000", 4) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3816] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3816] <... close resumed>) = 0 [pid 3812] <... mount resumed>) = -1 EIO (Input/output error) [pid 3816] memfd_create("syzkaller", 0 [pid 3812] exit_group(0 [pid 3816] <... memfd_create resumed>) = 3 [pid 3812] <... exit_group resumed>) = ? [pid 3816] ftruncate(3, 0 [pid 3812] +++ exited with 0 +++ [pid 3816] <... ftruncate resumed>) = 0 [pid 3816] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3816] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3812, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3816] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3816] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 [pid 3816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3816] pipe2([5, 6], 0) = 0 [pid 3816] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3817 [pid 3615] <... openat resumed>) = 3 [pid 3816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3817 attached [pid 3817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3817] setpgid(0, 0) = 0 [pid 3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3817] write(3, "1000", 4) = 4 [pid 3817] close(3) = 0 [pid 3817] memfd_create("syzkaller", 0) = 3 [pid 3817] ftruncate(3, 0) = 0 [pid 3817] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3817] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3817] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3817] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3817] pipe2([5, 6], 0) = 0 [pid 3817] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3817] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3818 [pid 3814] <... mount resumed>) = -1 EIO (Input/output error) [pid 3814] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3814] <... exit_group resumed>) = ? [pid 3615] close(3) = 0 ./strace-static-x86_64: Process 3818 attached [pid 3814] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3814, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3819 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3819 attached [pid 3819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3818] <... prctl resumed>) = 0 [pid 3817] <... mount resumed>) = -1 EIO (Input/output error) [pid 3819] <... prctl resumed>) = 0 [pid 3818] setpgid(0, 0 [pid 3817] exit_group(0 [pid 3819] setpgid(0, 0 [pid 3818] <... setpgid resumed>) = 0 [pid 3817] <... exit_group resumed>) = ? [pid 3819] <... setpgid resumed>) = 0 [pid 3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3818] <... openat resumed>) = 3 [pid 3817] +++ exited with 0 +++ [pid 3819] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3817, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3819] write(3, "1000", 4 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3819] <... write resumed>) = 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3819] close(3 [pid 3818] write(3, "1000", 4 [pid 3819] <... close resumed>) = 0 [pid 3818] <... write resumed>) = 4 [pid 3819] memfd_create("syzkaller", 0 [pid 3818] close(3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3819] <... memfd_create resumed>) = 3 [pid 3818] <... close resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3819] ftruncate(3, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3819] <... ftruncate resumed>) = 0 [pid 3819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3819] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3819] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3819] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3819] pipe2([5, 6], 0) = 0 [pid 3819] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3819] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3820 ./strace-static-x86_64: Process 3820 attached [pid 3820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3818] memfd_create("syzkaller", 0 [pid 3815] <... mount resumed>) = -1 EIO (Input/output error) [pid 3820] <... prctl resumed>) = 0 [pid 3818] <... memfd_create resumed>) = 3 [pid 3815] exit_group(0 [pid 3820] setpgid(0, 0 [pid 3818] ftruncate(3, 0 [pid 3815] <... exit_group resumed>) = ? [pid 3820] <... setpgid resumed>) = 0 [pid 3818] <... ftruncate resumed>) = 0 [pid 3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3818] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3815] +++ exited with 0 +++ [pid 3820] <... openat resumed>) = 3 [pid 3818] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3815, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3820] write(3, "1000", 4 [pid 3818] ioctl(4, LOOP_SET_FD, 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3820] <... write resumed>) = 4 [pid 3818] <... ioctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3820] close(3 [pid 3818] mkdir("./file0", 0777 [pid 3820] <... close resumed>) = 0 [pid 3818] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3820] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3820] <... memfd_create resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3820] ftruncate(3, 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3820] <... ftruncate resumed>) = 0 [pid 3820] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3818] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3820] ioctl(4, LOOP_SET_FD, 3 [pid 3818] pipe2( [pid 3816] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3820] <... ioctl resumed>) = 0 [pid 3818] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3816] exit_group(0 [pid 3618] close(3 [pid 3820] mkdir("./file0", 0777 [pid 3818] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3816] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3820] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3818] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3820] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3818] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3816] +++ exited with 0 +++ ./strace-static-x86_64: Process 3821 attached [pid 3820] pipe2( [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3821 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3816, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3820] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3821] <... prctl resumed>) = 0 [pid 3820] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3821] setpgid(0, 0 [pid 3820] <... write resumed>) = 21 [pid 3821] <... setpgid resumed>) = 0 [pid 3820] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3821] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3821] write(3, "1000", 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3821] <... write resumed>) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 3821] close(3 [pid 3619] close(3 [pid 3821] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3821] memfd_create("syzkaller", 0 [pid 3819] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3819] exit_group(0 [pid 3821] <... memfd_create resumed>) = 3 [pid 3819] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3822 [pid 3821] ftruncate(3, 0 [pid 3819] +++ exited with 0 +++ [pid 3821] <... ftruncate resumed>) = 0 [pid 3821] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3819, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3821] <... openat resumed>) = 4 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3821] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3821] <... ioctl resumed>) = 0 [pid 3821] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3822 attached [pid 3821] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 3822] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3821] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3822] <... prctl resumed>) = 0 [pid 3821] pipe2( [pid 3822] setpgid(0, 0 [pid 3821] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3822] <... setpgid resumed>) = 0 [pid 3821] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3821] <... write resumed>) = 21 [pid 3822] <... openat resumed>) = 3 [pid 3821] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3822] write(3, "1000", 4 [pid 3616] close(3 [pid 3822] <... write resumed>) = 4 [pid 3616] <... close resumed>) = 0 [pid 3822] close(3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3822] <... close resumed>) = 0 [pid 3822] memfd_create("syzkaller", 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3823 [pid 3822] <... memfd_create resumed>) = 3 [pid 3822] ftruncate(3, 0) = 0 [pid 3822] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3822] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3822] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3822] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3822] pipe2([5, 6], 0) = 0 [pid 3822] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3822] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3818] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3823 attached [pid 3818] exit_group(0 [pid 3823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3818] <... exit_group resumed>) = ? [pid 3823] <... prctl resumed>) = 0 [pid 3823] setpgid(0, 0) = 0 [pid 3823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3818] +++ exited with 0 +++ [pid 3823] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3818, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3823] write(3, "1000", 4 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3615] close(3 [pid 3823] <... write resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3823] close(3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3823] <... close resumed>) = 0 [pid 3823] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3824 [pid 3823] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3823] ftruncate(3, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3823] <... ftruncate resumed>) = 0 [pid 3823] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3823] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3823] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3823] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3823] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 3824 attached [pid 3823] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3820] <... mount resumed>) = -1 EIO (Input/output error) [pid 3824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3823] <... write resumed>) = 21 [pid 3820] exit_group(0 [pid 3823] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3820] <... exit_group resumed>) = ? [pid 3824] <... prctl resumed>) = 0 [pid 3820] +++ exited with 0 +++ [pid 3824] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3820, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3824] <... setpgid resumed>) = 0 [pid 3822] <... mount resumed>) = -1 EIO (Input/output error) [pid 3824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3822] exit_group(0) = ? [pid 3822] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3822, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3824] <... openat resumed>) = 3 [pid 3824] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3824] <... write resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 3824] close(3 [pid 3619] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3824] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3824] memfd_create("syzkaller", 0) = 3 [pid 3824] ftruncate(3, 0) = 0 [pid 3824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3824] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3824] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3824] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3824] pipe2([5, 6], 0) = 0 [pid 3824] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3824] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3825 ./strace-static-x86_64: Process 3825 attached [pid 3825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3825] setpgid(0, 0) = 0 [pid 3825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3825] write(3, "1000", 4) = 4 [pid 3825] close(3) = 0 [pid 3825] memfd_create("syzkaller", 0) = 3 [pid 3825] ftruncate(3, 0) = 0 [pid 3825] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3825] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3825] pipe2([5, 6], 0) = 0 [pid 3825] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3825] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3617] close(3 [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3826 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3827 ./strace-static-x86_64: Process 3827 attached [pid 3827] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3826 attached [pid 3826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3827] <... prctl resumed>) = 0 [pid 3826] <... prctl resumed>) = 0 [pid 3827] setpgid(0, 0 [pid 3826] setpgid(0, 0 [pid 3827] <... setpgid resumed>) = 0 [pid 3826] <... setpgid resumed>) = 0 [pid 3827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3827] <... openat resumed>) = 3 [pid 3826] <... openat resumed>) = 3 [pid 3827] write(3, "1000", 4 [pid 3826] write(3, "1000", 4 [pid 3827] <... write resumed>) = 4 [pid 3827] close(3) = 0 [pid 3826] <... write resumed>) = 4 [pid 3827] memfd_create("syzkaller", 0 [pid 3821] <... mount resumed>) = -1 EIO (Input/output error) [pid 3827] <... memfd_create resumed>) = 3 [pid 3827] ftruncate(3, 0) = 0 [pid 3827] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3827] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3827] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3827] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3827] pipe2([5, 6], 0) = 0 [pid 3827] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3827] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3821] exit_group(0 [pid 3826] close(3 [pid 3821] <... exit_group resumed>) = ? [pid 3821] +++ exited with 0 +++ [pid 3826] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3821, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3826] memfd_create("syzkaller", 0) = 3 [pid 3826] ftruncate(3, 0) = 0 [pid 3826] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3826] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3826] <... ioctl resumed>) = 0 [pid 3826] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3826] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3826] pipe2([5, 6], 0) = 0 [pid 3826] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3826] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3824] <... mount resumed>) = -1 EIO (Input/output error) [pid 3824] exit_group(0) = ? [pid 3824] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3824, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3828 ./strace-static-x86_64: Process 3828 attached [pid 3828] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3825] <... mount resumed>) = -1 EIO (Input/output error) [pid 3825] exit_group(0) = ? [pid 3828] <... prctl resumed>) = 0 [pid 3825] +++ exited with 0 +++ [pid 3828] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3825, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3828] <... setpgid resumed>) = 0 [pid 3828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3828] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3828] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3828] <... write resumed>) = 4 [pid 3828] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3828] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3828] memfd_create("syzkaller", 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3829 [pid 3828] <... memfd_create resumed>) = 3 [pid 3828] ftruncate(3, 0) = 0 [pid 3828] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3823] <... mount resumed>) = -1 EIO (Input/output error) [pid 3828] <... openat resumed>) = 4 [pid 3823] exit_group(0 [pid 3828] ioctl(4, LOOP_SET_FD, 3 [pid 3823] <... exit_group resumed>) = ? [pid 3828] <... ioctl resumed>) = 0 [pid 3823] +++ exited with 0 +++ [pid 3828] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3823, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3829 attached [pid 3828] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... restart_syscall resumed>) = 0 [pid 3829] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3828] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3828] pipe2( [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3828] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3829] <... prctl resumed>) = 0 [pid 3828] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3828] <... write resumed>) = 21 [pid 3829] setpgid(0, 0 [pid 3828] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3829] <... setpgid resumed>) = 0 [pid 3829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] close(3 [pid 3829] <... openat resumed>) = 3 [pid 3826] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3826] exit_group(0 [pid 3616] close(3 [pid 3826] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3829] write(3, "1000", 4 [pid 3826] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3829] <... write resumed>) = 4 [pid 3829] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3830 [pid 3829] <... close resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3831 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3826, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3829] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3829] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3829] ftruncate(3, 0) = 0 [pid 3829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3829] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 3831 attached [pid 3829] mkdir("./file0", 0777 [pid 3831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3829] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3830 attached [pid 3831] <... prctl resumed>) = 0 [pid 3829] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3831] setpgid(0, 0 [pid 3830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3829] pipe2( [pid 3831] <... setpgid resumed>) = 0 [pid 3830] <... prctl resumed>) = 0 [pid 3831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3830] setpgid(0, 0 [pid 3829] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3831] <... openat resumed>) = 3 [pid 3830] <... setpgid resumed>) = 0 [pid 3829] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3831] write(3, "1000", 4 [pid 3830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3829] <... write resumed>) = 21 [pid 3831] <... write resumed>) = 4 [pid 3830] <... openat resumed>) = 3 [pid 3829] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3831] close(3 [pid 3830] write(3, "1000", 4 [pid 3831] <... close resumed>) = 0 [pid 3830] <... write resumed>) = 4 [pid 3831] memfd_create("syzkaller", 0 [pid 3830] close(3 [pid 3827] <... mount resumed>) = -1 EIO (Input/output error) [pid 3831] <... memfd_create resumed>) = 3 [pid 3830] <... close resumed>) = 0 [pid 3827] exit_group(0 [pid 3831] ftruncate(3, 0 [pid 3830] memfd_create("syzkaller", 0 [pid 3828] <... mount resumed>) = -1 EIO (Input/output error) [pid 3827] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3831] <... ftruncate resumed>) = 0 [pid 3830] <... memfd_create resumed>) = 3 [pid 3827] +++ exited with 0 +++ [pid 3619] close(3 [pid 3831] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3830] ftruncate(3, 0 [pid 3828] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3831] <... openat resumed>) = 4 [pid 3830] <... ftruncate resumed>) = 0 [pid 3828] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3827, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3831] ioctl(4, LOOP_SET_FD, 3 [pid 3830] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3831] <... ioctl resumed>) = 0 [pid 3830] <... openat resumed>) = 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3832 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3828] +++ exited with 0 +++ [pid 3831] mkdir("./file0", 0777 [pid 3830] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3831] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3830] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3828, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3831] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3830] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 3832 attached [pid 3831] pipe2( [pid 3830] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3829] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... openat resumed>) = 3 [pid 3832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3831] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3830] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3829] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3832] <... prctl resumed>) = 0 [pid 3831] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3830] pipe2( [pid 3829] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3832] setpgid(0, 0 [pid 3831] <... write resumed>) = 21 [pid 3830] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3832] <... setpgid resumed>) = 0 [pid 3831] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3830] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3829] +++ exited with 0 +++ [pid 3832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3830] <... write resumed>) = 21 [pid 3832] <... openat resumed>) = 3 [pid 3832] write(3, "1000", 4 [pid 3830] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3829, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3832] <... write resumed>) = 4 [pid 3832] close(3) = 0 [pid 3832] memfd_create("syzkaller", 0) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3832] ftruncate(3, 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3832] <... ftruncate resumed>) = 0 [pid 3618] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3832] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3832] <... openat resumed>) = 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3832] mkdir("./file0", 0777 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3833 [pid 3832] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3832] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3832] pipe2([5, 6], 0) = 0 [pid 3832] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3832] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3833 attached [pid 3833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3833] setpgid(0, 0) = 0 [pid 3833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3833] write(3, "1000", 4) = 4 [pid 3833] close(3) = 0 [pid 3833] memfd_create("syzkaller", 0) = 3 [pid 3833] ftruncate(3, 0) = 0 [pid 3833] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3833] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3831] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3833] mkdir("./file0", 0777 [pid 3831] exit_group(0 [pid 3617] close(3 [pid 3615] close(3 [pid 3833] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3831] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3833] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 3833] pipe2( [pid 3831] +++ exited with 0 +++ [pid 3833] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3831, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3834 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3833] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3833] <... write resumed>) = 21 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3833] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3835 ./strace-static-x86_64: Process 3834 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 3835 attached [pid 3834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3834] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3834] setpgid(0, 0 [pid 3832] <... mount resumed>) = -1 EIO (Input/output error) [pid 3834] <... setpgid resumed>) = 0 [pid 3832] exit_group(0 [pid 3834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3832] <... exit_group resumed>) = ? [pid 3834] <... openat resumed>) = 3 [pid 3832] +++ exited with 0 +++ [pid 3834] write(3, "1000", 4) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3832, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3834] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3834] <... close resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3834] memfd_create("syzkaller", 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3834] <... memfd_create resumed>) = 3 [pid 3834] ftruncate(3, 0) = 0 [pid 3834] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3834] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3834] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3834] pipe2([5, 6], 0) = 0 [pid 3834] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3834] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3830] <... mount resumed>) = -1 EIO (Input/output error) [pid 3835] setpgid(0, 0 [pid 3830] exit_group(0 [pid 3835] <... setpgid resumed>) = 0 [pid 3830] <... exit_group resumed>) = ? [pid 3835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3830] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3830, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3835] <... openat resumed>) = 3 [pid 3835] write(3, "1000", 4 [pid 3834] <... mount resumed>) = -1 EIO (Input/output error) [pid 3835] <... write resumed>) = 4 [pid 3835] close(3 [pid 3834] exit_group(0 [pid 3835] <... close resumed>) = 0 [pid 3834] <... exit_group resumed>) = ? [pid 3835] memfd_create("syzkaller", 0) = 3 [pid 3835] ftruncate(3, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3835] <... ftruncate resumed>) = 0 [pid 3834] +++ exited with 0 +++ [pid 3620] close(3 [pid 3835] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3834, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... openat resumed>) = 3 [pid 3835] <... openat resumed>) = 4 [pid 3833] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3835] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3833] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3836 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3835] mkdir("./file0", 0777 [pid 3833] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3835] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... ioctl resumed>) = 0 [pid 3835] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3833] +++ exited with 0 +++ [pid 3619] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3836 attached [pid 3835] pipe2( [pid 3619] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3833, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3835] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3836] <... prctl resumed>) = 0 [pid 3835] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3836] setpgid(0, 0 [pid 3835] <... write resumed>) = 21 [pid 3836] <... setpgid resumed>) = 0 [pid 3835] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3837 ./strace-static-x86_64: Process 3837 attached [pid 3836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3837] <... prctl resumed>) = 0 [pid 3836] <... openat resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 3837] setpgid(0, 0 [pid 3836] write(3, "1000", 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3837] <... setpgid resumed>) = 0 [pid 3836] <... write resumed>) = 4 [pid 3837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3836] close(3 [pid 3837] <... openat resumed>) = 3 [pid 3836] <... close resumed>) = 0 [pid 3837] write(3, "1000", 4 [pid 3836] memfd_create("syzkaller", 0 [pid 3837] <... write resumed>) = 4 [pid 3836] <... memfd_create resumed>) = 3 [pid 3837] close(3 [pid 3836] ftruncate(3, 0 [pid 3837] <... close resumed>) = 0 [pid 3836] <... ftruncate resumed>) = 0 [pid 3837] memfd_create("syzkaller", 0 [pid 3836] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3837] <... memfd_create resumed>) = 3 [pid 3836] <... openat resumed>) = 4 [pid 3837] ftruncate(3, 0 [pid 3836] ioctl(4, LOOP_SET_FD, 3 [pid 3837] <... ftruncate resumed>) = 0 [pid 3836] <... ioctl resumed>) = 0 [pid 3837] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3836] mkdir("./file0", 0777 [pid 3837] <... openat resumed>) = 4 [pid 3836] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3837] ioctl(4, LOOP_SET_FD, 3 [pid 3836] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3837] <... ioctl resumed>) = 0 [pid 3836] pipe2( [pid 3837] mkdir("./file0", 0777 [pid 3836] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3837] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3836] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3837] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3836] <... write resumed>) = 21 [pid 3837] pipe2( [pid 3836] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3837] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3837] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3837] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3617] close(3 [pid 3616] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3839 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3838 ./strace-static-x86_64: Process 3839 attached [pid 3839] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3838 attached ) = 0 [pid 3839] setpgid(0, 0) = 0 [pid 3838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3838] <... prctl resumed>) = 0 [pid 3839] <... openat resumed>) = 3 [pid 3838] setpgid(0, 0 [pid 3839] write(3, "1000", 4 [pid 3838] <... setpgid resumed>) = 0 [pid 3839] <... write resumed>) = 4 [pid 3838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3839] close(3 [pid 3838] <... openat resumed>) = 3 [pid 3839] <... close resumed>) = 0 [pid 3838] write(3, "1000", 4 [pid 3839] memfd_create("syzkaller", 0 [pid 3838] <... write resumed>) = 4 [pid 3839] <... memfd_create resumed>) = 3 [pid 3835] <... mount resumed>) = -1 EIO (Input/output error) [pid 3839] ftruncate(3, 0 [pid 3835] exit_group(0 [pid 3839] <... ftruncate resumed>) = 0 [pid 3835] <... exit_group resumed>) = ? [pid 3839] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3835] +++ exited with 0 +++ [pid 3839] <... openat resumed>) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3835, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3839] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3839] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3839] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 3839] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3839] pipe2( [pid 3838] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 3839] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3838] <... close resumed>) = 0 [pid 3618] close(3 [pid 3839] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3838] memfd_create("syzkaller", 0 [pid 3618] <... close resumed>) = 0 [pid 3839] <... write resumed>) = 21 [pid 3838] <... memfd_create resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3839] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3838] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3840 ./strace-static-x86_64: Process 3840 attached [pid 3840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3840] setpgid(0, 0 [pid 3838] <... ftruncate resumed>) = 0 [pid 3838] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3838] mkdir("./file0", 0777 [pid 3840] <... setpgid resumed>) = 0 [pid 3840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3840] write(3, "1000", 4) = 4 [pid 3840] close(3) = 0 [pid 3840] memfd_create("syzkaller", 0) = 3 [pid 3840] ftruncate(3, 0) = 0 [pid 3840] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3838] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3840] <... openat resumed>) = 4 [pid 3838] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3837] <... mount resumed>) = -1 EIO (Input/output error) [pid 3840] ioctl(4, LOOP_SET_FD, 3 [pid 3838] pipe2([5, 6], 0) = 0 [pid 3837] exit_group(0 [pid 3840] <... ioctl resumed>) = 0 [pid 3838] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3837] <... exit_group resumed>) = ? [pid 3840] mkdir("./file0", 0777 [pid 3838] <... write resumed>) = 21 [pid 3838] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3840] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3840] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3837] +++ exited with 0 +++ [pid 3840] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3837, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3840] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3840] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3840] <... write resumed>) = 21 [pid 3840] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... restart_syscall resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3836] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3836] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 3836] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3841 [pid 3836] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3836, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 3841 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3841] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3841] <... setpgid resumed>) = 0 [pid 3841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3841] write(3, "1000", 4) = 4 [pid 3841] close(3 [pid 3839] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3839] exit_group(0) = ? [pid 3839] +++ exited with 0 +++ [pid 3619] close(3 [pid 3841] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3839, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3841] memfd_create("syzkaller", 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3842 [pid 3617] <... openat resumed>) = 3 [pid 3841] <... memfd_create resumed>) = 3 [pid 3841] ftruncate(3, 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3841] <... ftruncate resumed>) = 0 [pid 3841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ./strace-static-x86_64: Process 3842 attached [pid 3841] ioctl(4, LOOP_SET_FD, 3 [pid 3842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3841] <... ioctl resumed>) = 0 [pid 3842] <... prctl resumed>) = 0 [pid 3841] mkdir("./file0", 0777 [pid 3842] setpgid(0, 0 [pid 3841] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3842] <... setpgid resumed>) = 0 [pid 3841] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3841] pipe2( [pid 3842] <... openat resumed>) = 3 [pid 3841] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3842] write(3, "1000", 4 [pid 3841] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3842] <... write resumed>) = 4 [pid 3841] <... write resumed>) = 21 [pid 3838] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3842] close(3 [pid 3841] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3838] exit_group(0 [pid 3620] close(3 [pid 3842] <... close resumed>) = 0 [pid 3838] <... exit_group resumed>) = ? [pid 3842] memfd_create("syzkaller", 0 [pid 3838] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3842] <... memfd_create resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3842] ftruncate(3, 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3838, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3842] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3843 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3842] <... openat resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3843 attached [pid 3842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3842] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3842] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3840] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3842] pipe2([5, 6], 0) = 0 [pid 3842] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3842] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3840] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3843] <... prctl resumed>) = 0 [pid 3840] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3840] +++ exited with 0 +++ [pid 3843] setpgid(0, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3840, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... close resumed>) = 0 [pid 3843] <... setpgid resumed>) = 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... restart_syscall resumed>) = 0 [pid 3843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3844 [pid 3843] <... openat resumed>) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3843] write(3, "1000", 4 [pid 3618] <... openat resumed>) = 3 [pid 3843] <... write resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3843] close(3) = 0 ./strace-static-x86_64: Process 3844 attached [pid 3843] memfd_create("syzkaller", 0 [pid 3844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3843] <... memfd_create resumed>) = 3 [pid 3844] <... prctl resumed>) = 0 [pid 3843] ftruncate(3, 0 [pid 3844] setpgid(0, 0 [pid 3843] <... ftruncate resumed>) = 0 [pid 3844] <... setpgid resumed>) = 0 [pid 3843] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3843] <... openat resumed>) = 4 [pid 3843] ioctl(4, LOOP_SET_FD, 3 [pid 3844] <... openat resumed>) = 3 [pid 3844] write(3, "1000", 4) = 4 [pid 3844] close(3) = 0 [pid 3844] memfd_create("syzkaller", 0) = 3 [pid 3844] ftruncate(3, 0 [pid 3843] <... ioctl resumed>) = 0 [pid 3844] <... ftruncate resumed>) = 0 [pid 3843] mkdir("./file0", 0777 [pid 3844] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3843] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3844] <... openat resumed>) = 4 [pid 3843] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3844] ioctl(4, LOOP_SET_FD, 3 [pid 3843] pipe2( [pid 3841] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3842] <... mount resumed>) = -1 EIO (Input/output error) [pid 3844] <... ioctl resumed>) = 0 [pid 3843] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3842] exit_group(0 [pid 3841] exit_group(0 [pid 3618] close(3 [pid 3616] close(3 [pid 3844] mkdir("./file0", 0777 [pid 3843] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3842] <... exit_group resumed>) = ? [pid 3841] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3844] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3843] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3844] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3842] +++ exited with 0 +++ [pid 3841] +++ exited with 0 +++ [pid 3844] pipe2( [pid 3843] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3842, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3845 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3841, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3844] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3844] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3844] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3846 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3845 attached [pid 3845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3845] setpgid(0, 0 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3846 attached [pid 3846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3845] <... setpgid resumed>) = 0 [pid 3846] <... prctl resumed>) = 0 [pid 3845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3846] setpgid(0, 0 [pid 3845] <... openat resumed>) = 3 [pid 3846] <... setpgid resumed>) = 0 [pid 3845] write(3, "1000", 4) = 4 [pid 3846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3845] close(3) = 0 [pid 3845] memfd_create("syzkaller", 0) = 3 [pid 3845] ftruncate(3, 0) = 0 [pid 3845] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3845] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3845] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3845] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3845] pipe2([5, 6], 0) = 0 [pid 3845] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3845] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3846] <... openat resumed>) = 3 [pid 3846] write(3, "1000", 4) = 4 [pid 3846] close(3) = 0 [pid 3846] memfd_create("syzkaller", 0) = 3 [pid 3846] ftruncate(3, 0) = 0 [pid 3846] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3846] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3846] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3846] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3846] pipe2([5, 6], 0) = 0 [pid 3846] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3846] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3843] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3843] exit_group(0 [pid 3619] close(3 [pid 3615] close(3 [pid 3843] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3843] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3843, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3847 ./strace-static-x86_64: Process 3847 attached [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3848 [pid 3847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3847] <... prctl resumed>) = 0 [pid 3845] <... mount resumed>) = -1 EIO (Input/output error) [pid 3845] exit_group(0) = ? [pid 3845] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3845, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3847] setpgid(0, 0./strace-static-x86_64: Process 3848 attached ) = 0 [pid 3847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3847] <... openat resumed>) = 3 [pid 3848] setpgid(0, 0 [pid 3847] write(3, "1000", 4 [pid 3848] <... setpgid resumed>) = 0 [pid 3847] <... write resumed>) = 4 [pid 3848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3847] close(3 [pid 3848] <... openat resumed>) = 3 [pid 3847] <... close resumed>) = 0 [pid 3848] write(3, "1000", 4) = 4 [pid 3847] memfd_create("syzkaller", 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3846] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3849 ./strace-static-x86_64: Process 3849 attached [pid 3849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3849] setpgid(0, 0) = 0 [pid 3849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3849] write(3, "1000", 4) = 4 [pid 3849] close(3) = 0 [pid 3849] memfd_create("syzkaller", 0) = 3 [pid 3849] ftruncate(3, 0 [pid 3848] close(3 [pid 3847] <... memfd_create resumed>) = 3 [pid 3846] exit_group(0 [pid 3849] <... ftruncate resumed>) = 0 [pid 3848] <... close resumed>) = 0 [pid 3847] ftruncate(3, 0 [pid 3846] <... exit_group resumed>) = ? [pid 3849] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3848] memfd_create("syzkaller", 0 [pid 3847] <... ftruncate resumed>) = 0 [pid 3849] <... openat resumed>) = 4 [pid 3848] <... memfd_create resumed>) = 3 [pid 3847] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3846] +++ exited with 0 +++ [pid 3844] <... mount resumed>) = -1 EIO (Input/output error) [pid 3849] ioctl(4, LOOP_SET_FD, 3 [pid 3848] ftruncate(3, 0 [pid 3847] <... openat resumed>) = 4 [pid 3844] exit_group(0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3846, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3848] <... ftruncate resumed>) = 0 [pid 3847] ioctl(4, LOOP_SET_FD, 3 [pid 3844] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 3849] <... ioctl resumed>) = 0 [pid 3848] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3847] <... ioctl resumed>) = 0 [pid 3844] +++ exited with 0 +++ [pid 3848] <... openat resumed>) = 4 [pid 3618] close(3 [pid 3849] mkdir("./file0", 0777 [pid 3848] ioctl(4, LOOP_SET_FD, 3 [pid 3847] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3844, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3848] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3848] mkdir("./file0", 0777 [pid 3617] <... openat resumed>) = 3 [pid 3848] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3848] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3848] pipe2([5, 6], 0) = 0 [pid 3848] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3848] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3849] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3847] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 [pid 3849] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3847] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3849] pipe2( [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3847] pipe2( [pid 3849] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3847] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3849] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3847] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 3847] <... write resumed>) = 21 [pid 3849] <... write resumed>) = 21 [pid 3847] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3850 [pid 3849] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3850 attached [pid 3850] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3850] setpgid(0, 0) = 0 [pid 3850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3850] write(3, "1000", 4) = 4 [pid 3850] close(3) = 0 [pid 3850] memfd_create("syzkaller", 0) = 3 [pid 3850] ftruncate(3, 0) = 0 [pid 3850] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3850] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3850] mkdir("./file0", 0777 [pid 3848] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3850] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3848] exit_group(0 [pid 3617] close(3 [pid 3850] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3848] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3850] pipe2( [pid 3848] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3850] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3850] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3848, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3851 ./strace-static-x86_64: Process 3851 attached [pid 3850] <... write resumed>) = 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... ioctl resumed>) = 0 [pid 3851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3850] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... restart_syscall resumed>) = 0 [pid 3616] close(3 [pid 3851] <... prctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3851] setpgid(0, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3851] <... setpgid resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... openat resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3852 [pid 3851] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3852 attached [pid 3851] write(3, "1000", 4 [pid 3852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3851] <... write resumed>) = 4 [pid 3852] <... prctl resumed>) = 0 [pid 3851] close(3 [pid 3852] setpgid(0, 0 [pid 3851] <... close resumed>) = 0 [pid 3852] <... setpgid resumed>) = 0 [pid 3851] memfd_create("syzkaller", 0 [pid 3849] <... mount resumed>) = -1 EIO (Input/output error) [pid 3852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3851] <... memfd_create resumed>) = 3 [pid 3849] exit_group(0 [pid 3852] <... openat resumed>) = 3 [pid 3851] ftruncate(3, 0 [pid 3849] <... exit_group resumed>) = ? [pid 3852] write(3, "1000", 4 [pid 3851] <... ftruncate resumed>) = 0 [pid 3849] +++ exited with 0 +++ [pid 3852] <... write resumed>) = 4 [pid 3851] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3849, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3852] close(3 [pid 3851] <... openat resumed>) = 4 [pid 3852] <... close resumed>) = 0 [pid 3851] ioctl(4, LOOP_SET_FD, 3 [pid 3852] memfd_create("syzkaller", 0 [pid 3851] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3852] <... memfd_create resumed>) = 3 [pid 3851] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 3852] ftruncate(3, 0 [pid 3851] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3852] <... ftruncate resumed>) = 0 [pid 3851] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3852] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3851] pipe2( [pid 3852] <... openat resumed>) = 4 [pid 3851] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3852] ioctl(4, LOOP_SET_FD, 3 [pid 3851] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3852] <... ioctl resumed>) = 0 [pid 3851] <... write resumed>) = 21 [pid 3852] mkdir("./file0", 0777 [pid 3851] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3852] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3847] <... mount resumed>) = -1 EIO (Input/output error) [pid 3847] exit_group(0 [pid 3852] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3847] <... exit_group resumed>) = ? [pid 3847] +++ exited with 0 +++ [pid 3852] pipe2([5, 6], 0) = 0 [pid 3852] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3847, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3852] <... write resumed>) = 21 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3852] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3853 ./strace-static-x86_64: Process 3853 attached [pid 3853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3853] setpgid(0, 0) = 0 [pid 3853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3853] write(3, "1000", 4 [pid 3620] close(3 [pid 3853] <... write resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3853] close(3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3853] <... close resumed>) = 0 [pid 3853] memfd_create("syzkaller", 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3854 [pid 3853] <... memfd_create resumed>) = 3 [pid 3853] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 3854 attached [pid 3853] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3853] <... openat resumed>) = 4 [pid 3854] <... prctl resumed>) = 0 [pid 3853] ioctl(4, LOOP_SET_FD, 3 [pid 3854] setpgid(0, 0 [pid 3853] <... ioctl resumed>) = 0 [pid 3854] <... setpgid resumed>) = 0 [pid 3853] mkdir("./file0", 0777 [pid 3850] <... mount resumed>) = -1 EIO (Input/output error) [pid 3850] exit_group(0) = ? [pid 3850] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3850, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3853] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... ioctl resumed>) = 0 [pid 3854] <... openat resumed>) = 3 [pid 3853] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3851] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3855 ./strace-static-x86_64: Process 3855 attached [pid 3854] write(3, "1000", 4 [pid 3853] pipe2( [pid 3851] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 3854] <... write resumed>) = 4 [pid 3853] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3851] <... exit_group resumed>) = ? [pid 3854] close(3 [pid 3853] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 3851] +++ exited with 0 +++ [pid 3854] <... close resumed>) = 0 [pid 3853] <... write resumed>) = 21 [pid 3618] <... close resumed>) = 0 [pid 3854] memfd_create("syzkaller", 0 [pid 3853] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3851, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3854] <... memfd_create resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3854] ftruncate(3, 0 [pid 3852] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3856 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3855] <... prctl resumed>) = 0 [pid 3854] <... ftruncate resumed>) = 0 [pid 3852] exit_group(0./strace-static-x86_64: Process 3856 attached [pid 3855] setpgid(0, 0 [pid 3854] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3853] <... mount resumed>) = -1 EIO (Input/output error) [pid 3852] <... exit_group resumed>) = ? [pid 3856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3855] <... setpgid resumed>) = 0 [pid 3854] <... openat resumed>) = 4 [pid 3856] <... prctl resumed>) = 0 [pid 3855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3854] ioctl(4, LOOP_SET_FD, 3 [pid 3853] exit_group(0 [pid 3852] +++ exited with 0 +++ [pid 3856] setpgid(0, 0 [pid 3855] <... openat resumed>) = 3 [pid 3854] <... ioctl resumed>) = 0 [pid 3853] <... exit_group resumed>) = ? [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3852, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3856] <... setpgid resumed>) = 0 [pid 3855] write(3, "1000", 4 [pid 3854] mkdir("./file0", 0777 [pid 3856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3855] <... write resumed>) = 4 [pid 3854] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3853] +++ exited with 0 +++ [pid 3856] <... openat resumed>) = 3 [pid 3855] close(3 [pid 3854] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3853, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3856] write(3, "1000", 4 [pid 3855] <... close resumed>) = 0 [pid 3854] pipe2( [pid 3856] <... write resumed>) = 4 [pid 3855] memfd_create("syzkaller", 0 [pid 3854] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3856] close(3 [pid 3855] <... memfd_create resumed>) = 3 [pid 3854] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3856] <... close resumed>) = 0 [pid 3855] ftruncate(3, 0 [pid 3854] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3856] memfd_create("syzkaller", 0 [pid 3855] <... ftruncate resumed>) = 0 [pid 3854] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3856] <... memfd_create resumed>) = 3 [pid 3855] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3857 ./strace-static-x86_64: Process 3857 attached [pid 3857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3856] ftruncate(3, 0 [pid 3855] <... openat resumed>) = 4 [pid 3856] <... ftruncate resumed>) = 0 [pid 3855] ioctl(4, LOOP_SET_FD, 3 [pid 3856] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3855] <... ioctl resumed>) = 0 [pid 3856] ioctl(4, LOOP_SET_FD, 3 [pid 3855] mkdir("./file0", 0777 [pid 3856] <... ioctl resumed>) = 0 [pid 3855] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3857] <... prctl resumed>) = 0 [pid 3856] mkdir("./file0", 0777 [pid 3855] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3857] setpgid(0, 0 [pid 3856] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3855] pipe2( [pid 3857] <... setpgid resumed>) = 0 [pid 3856] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3855] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3856] pipe2( [pid 3855] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3857] <... openat resumed>) = 3 [pid 3856] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3855] <... write resumed>) = 21 [pid 3857] write(3, "1000", 4 [pid 3856] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3855] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3857] <... write resumed>) = 4 [pid 3856] <... write resumed>) = 21 [pid 3857] close(3 [pid 3856] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3857] <... close resumed>) = 0 [pid 3857] memfd_create("syzkaller", 0) = 3 [pid 3854] <... mount resumed>) = -1 EIO (Input/output error) [pid 3857] ftruncate(3, 0) = 0 [pid 3857] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3857] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3857] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3857] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3857] pipe2([5, 6], 0) = 0 [pid 3857] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3854] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3857] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3854] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3858 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3859 [pid 3854] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3854, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 3858 attached [pid 3858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3858] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3858] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3858] <... setpgid resumed>) = 0 [pid 3858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3858] write(3, "1000", 4) = 4 [pid 3858] close(3) = 0 [pid 3858] memfd_create("syzkaller", 0) = 3 [pid 3858] ftruncate(3, 0) = 0 [pid 3858] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3859 attached ) = 4 [pid 3858] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3858] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3858] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3858] pipe2([5, 6], 0) = 0 [pid 3858] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3858] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3856] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3856] exit_group(0 [pid 3620] close(3 [pid 3859] <... prctl resumed>) = 0 [pid 3856] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3859] setpgid(0, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3859] <... setpgid resumed>) = 0 [pid 3856] +++ exited with 0 +++ [pid 3859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3860 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3856, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3859] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3860 attached [pid 3859] write(3, "1000", 4 [pid 3860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3859] <... write resumed>) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3860] <... prctl resumed>) = 0 [pid 3859] close(3 [pid 3618] <... openat resumed>) = 3 [pid 3860] setpgid(0, 0 [pid 3859] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3860] <... setpgid resumed>) = 0 [pid 3859] memfd_create("syzkaller", 0 [pid 3860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3859] <... memfd_create resumed>) = 3 [pid 3860] <... openat resumed>) = 3 [pid 3859] ftruncate(3, 0 [pid 3855] <... mount resumed>) = -1 EIO (Input/output error) [pid 3860] write(3, "1000", 4 [pid 3859] <... ftruncate resumed>) = 0 [pid 3855] exit_group(0 [pid 3860] <... write resumed>) = 4 [pid 3859] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3855] <... exit_group resumed>) = ? [pid 3860] close(3 [pid 3859] <... openat resumed>) = 4 [pid 3860] <... close resumed>) = 0 [pid 3859] ioctl(4, LOOP_SET_FD, 3 [pid 3855] +++ exited with 0 +++ [pid 3860] memfd_create("syzkaller", 0 [pid 3859] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3855, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3860] <... memfd_create resumed>) = 3 [pid 3859] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3860] ftruncate(3, 0 [pid 3859] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3860] <... ftruncate resumed>) = 0 [pid 3859] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3860] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3859] pipe2( [pid 3618] <... close resumed>) = 0 [pid 3860] <... openat resumed>) = 4 [pid 3859] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3860] ioctl(4, LOOP_SET_FD, 3 [pid 3859] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3860] <... ioctl resumed>) = 0 [pid 3859] <... write resumed>) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3861 ./strace-static-x86_64: Process 3861 attached [pid 3860] mkdir("./file0", 0777 [pid 3859] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3858] <... mount resumed>) = -1 EIO (Input/output error) [pid 3857] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3860] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3861] <... prctl resumed>) = 0 [pid 3860] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3858] exit_group(0 [pid 3857] exit_group(0 [pid 3615] close(3 [pid 3861] setpgid(0, 0 [pid 3860] pipe2( [pid 3861] <... setpgid resumed>) = 0 [pid 3860] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3857] <... exit_group resumed>) = ? [pid 3861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3860] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3861] <... openat resumed>) = 3 [pid 3860] <... write resumed>) = 21 [pid 3858] <... exit_group resumed>) = ? [pid 3857] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 3861] write(3, "1000", 4 [pid 3860] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3861] <... write resumed>) = 4 [pid 3861] close(3) = 0 [pid 3861] memfd_create("syzkaller", 0 [pid 3858] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3857, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3861] <... memfd_create resumed>) = 3 [pid 3861] ftruncate(3, 0) = 0 [pid 3861] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3861] ioctl(4, LOOP_SET_FD, 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3858, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3861] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3862 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3861] mkdir("./file0", 0777 [pid 3619] <... openat resumed>) = 3 [pid 3861] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... openat resumed>) = 3 [pid 3861] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3861] pipe2( [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3861] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3861] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3861] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3862 attached [pid 3862] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3859] <... mount resumed>) = -1 EIO (Input/output error) [pid 3862] <... prctl resumed>) = 0 [pid 3859] exit_group(0 [pid 3862] setpgid(0, 0 [pid 3859] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3617] close(3 [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3862] <... setpgid resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3864 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3863 [pid 3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3863 attached [pid 3863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3863] setpgid(0, 0) = 0 [pid 3863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3862] <... openat resumed>) = 3 [pid 3862] write(3, "1000", 4) = 4 [pid 3862] close(3) = 0 [pid 3863] write(3, "1000", 4 [pid 3862] memfd_create("syzkaller", 0) = 3 [pid 3862] ftruncate(3, 0./strace-static-x86_64: Process 3864 attached ) = 0 [pid 3859] +++ exited with 0 +++ [pid 3863] <... write resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3859, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3862] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3863] close(3) = 0 [pid 3862] <... openat resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3863] memfd_create("syzkaller", 0 [pid 3862] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3862] <... ioctl resumed>) = 0 [pid 3863] <... memfd_create resumed>) = 3 [pid 3862] mkdir("./file0", 0777 [pid 3863] ftruncate(3, 0 [pid 3862] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3863] <... ftruncate resumed>) = 0 [pid 3863] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3862] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3862] pipe2( [pid 3863] <... openat resumed>) = 4 [pid 3862] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3863] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3863] mkdir("./file0", 0777 [pid 3862] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3863] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3863] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3862] <... write resumed>) = 21 [pid 3863] pipe2( [pid 3862] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3863] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3863] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3863] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3864] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3860] <... mount resumed>) = -1 EIO (Input/output error) [pid 3860] exit_group(0) = ? [pid 3860] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3860, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3864] <... prctl resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3864] setpgid(0, 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3864] write(3, "1000", 4) = 4 [pid 3864] close(3) = 0 [pid 3864] memfd_create("syzkaller", 0) = 3 [pid 3864] ftruncate(3, 0) = 0 [pid 3864] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3864] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3864] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3864] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3864] pipe2([5, 6], 0) = 0 [pid 3864] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3864] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3865 ./strace-static-x86_64: Process 3865 attached [pid 3862] <... mount resumed>) = -1 EIO (Input/output error) [pid 3865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3862] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3866 attached [pid 3865] <... prctl resumed>) = 0 [pid 3862] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3866 [pid 3866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3865] setpgid(0, 0 [pid 3862] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3862, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3865] <... setpgid resumed>) = 0 [pid 3865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3866] <... prctl resumed>) = 0 [pid 3865] <... openat resumed>) = 3 [pid 3866] setpgid(0, 0 [pid 3865] write(3, "1000", 4) = 4 [pid 3865] close(3) = 0 [pid 3866] <... setpgid resumed>) = 0 [pid 3865] memfd_create("syzkaller", 0) = 3 [pid 3865] ftruncate(3, 0 [pid 3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3865] <... ftruncate resumed>) = 0 [pid 3865] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3866] <... openat resumed>) = 3 [pid 3865] <... openat resumed>) = 4 [pid 3866] write(3, "1000", 4 [pid 3865] ioctl(4, LOOP_SET_FD, 3 [pid 3863] <... mount resumed>) = -1 EIO (Input/output error) [pid 3866] <... write resumed>) = 4 [pid 3865] <... ioctl resumed>) = 0 [pid 3863] exit_group(0 [pid 3866] close(3 [pid 3865] mkdir("./file0", 0777 [pid 3863] <... exit_group resumed>) = ? [pid 3863] +++ exited with 0 +++ [pid 3866] <... close resumed>) = 0 [pid 3865] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3863, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3866] memfd_create("syzkaller", 0 [pid 3865] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3864] <... mount resumed>) = -1 EIO (Input/output error) [pid 3866] <... memfd_create resumed>) = 3 [pid 3865] pipe2( [pid 3866] ftruncate(3, 0) = 0 [pid 3865] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3864] exit_group(0 [pid 3866] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3865] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3864] <... exit_group resumed>) = ? [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3866] <... openat resumed>) = 4 [pid 3865] <... write resumed>) = 21 [pid 3866] ioctl(4, LOOP_SET_FD, 3 [pid 3865] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... openat resumed>) = 3 [pid 3866] <... ioctl resumed>) = 0 [pid 3866] mkdir("./file0", 0777 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3866] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3866] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3866] pipe2([5, 6], 0) = 0 [pid 3866] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3864] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3864, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3866] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3861] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3861] exit_group(0) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3867 [pid 3861] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3861, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3867 attached [pid 3867] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3867] setpgid(0, 0) = 0 [pid 3867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3867] write(3, "1000", 4) = 4 [pid 3867] close(3) = 0 [pid 3867] memfd_create("syzkaller", 0) = 3 [pid 3867] ftruncate(3, 0) = 0 [pid 3867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3867] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3867] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3867] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3867] pipe2([5, 6], 0) = 0 [pid 3867] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3867] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3617] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3865] <... mount resumed>) = -1 EIO (Input/output error) [pid 3865] exit_group(0) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3868 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3869 [pid 3865] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3865, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3870 ./strace-static-x86_64: Process 3869 attached [pid 3869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3869] setpgid(0, 0) = 0 [pid 3869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 3870 attached [pid 3869] write(3, "1000", 4) = 4 [pid 3870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3869] close(3) = 0 [pid 3870] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 3868 attached [pid 3869] memfd_create("syzkaller", 0) = 3 [pid 3869] ftruncate(3, 0) = 0 [pid 3869] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3869] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3869] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3869] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3869] pipe2([5, 6], 0) = 0 [pid 3869] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3869] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3870] setpgid(0, 0 [pid 3868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... ioctl resumed>) = 0 [pid 3870] <... setpgid resumed>) = 0 [pid 3868] <... prctl resumed>) = 0 [pid 3616] close(3 [pid 3870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3868] setpgid(0, 0 [pid 3867] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... close resumed>) = 0 [pid 3867] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3867] <... exit_group resumed>) = ? [pid 3867] +++ exited with 0 +++ [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3871 [pid 3870] <... openat resumed>) = 3 [pid 3868] <... setpgid resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3867, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3870] write(3, "1000", 4) = 4 [pid 3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3870] close(3 [pid 3868] <... openat resumed>) = 3 [pid 3870] <... close resumed>) = 0 [pid 3868] write(3, "1000", 4 [pid 3870] memfd_create("syzkaller", 0 [pid 3868] <... write resumed>) = 4 [pid 3870] <... memfd_create resumed>) = 3 [pid 3868] close(3./strace-static-x86_64: Process 3871 attached [pid 3870] ftruncate(3, 0 [pid 3868] <... close resumed>) = 0 [pid 3871] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3870] <... ftruncate resumed>) = 0 [pid 3868] memfd_create("syzkaller", 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3871] <... prctl resumed>) = 0 [pid 3870] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3868] <... memfd_create resumed>) = 3 [pid 3871] setpgid(0, 0 [pid 3870] <... openat resumed>) = 4 [pid 3868] ftruncate(3, 0 [pid 3615] <... openat resumed>) = 3 [pid 3871] <... setpgid resumed>) = 0 [pid 3870] ioctl(4, LOOP_SET_FD, 3 [pid 3868] <... ftruncate resumed>) = 0 [pid 3871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3870] <... ioctl resumed>) = 0 [pid 3868] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3871] <... openat resumed>) = 3 [pid 3870] mkdir("./file0", 0777 [pid 3871] write(3, "1000", 4 [pid 3870] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3868] <... openat resumed>) = 4 [pid 3871] <... write resumed>) = 4 [pid 3870] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3868] ioctl(4, LOOP_SET_FD, 3 [pid 3871] close(3 [pid 3870] pipe2( [pid 3868] <... ioctl resumed>) = 0 [pid 3871] <... close resumed>) = 0 [pid 3870] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3868] mkdir("./file0", 0777 [pid 3871] memfd_create("syzkaller", 0 [pid 3870] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3868] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3866] <... mount resumed>) = -1 EIO (Input/output error) [pid 3871] <... memfd_create resumed>) = 3 [pid 3870] <... write resumed>) = 21 [pid 3868] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3866] exit_group(0 [pid 3871] ftruncate(3, 0 [pid 3870] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3868] pipe2( [pid 3866] <... exit_group resumed>) = ? [pid 3871] <... ftruncate resumed>) = 0 [pid 3868] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3871] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3868] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3866] +++ exited with 0 +++ [pid 3871] ioctl(4, LOOP_SET_FD, 3 [pid 3868] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3866, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3871] <... ioctl resumed>) = 0 [pid 3868] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3871] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3871] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 3871] pipe2( [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3871] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3871] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3871] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3869] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3869] exit_group(0) = ? [pid 3869] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3869, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] close(3) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3872 [pid 3868] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3872 attached [pid 3868] exit_group(0 [pid 3618] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3873 [pid 3868] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3868] +++ exited with 0 +++ [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3874 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3868, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3872] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3874 attached [pid 3872] <... prctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3872] setpgid(0, 0 [pid 3870] <... mount resumed>) = -1 EIO (Input/output error) [pid 3872] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 3873 attached [pid 3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3870] exit_group(0 [pid 3874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3872] <... openat resumed>) = 3 [pid 3870] <... exit_group resumed>) = ? [pid 3874] <... prctl resumed>) = 0 [pid 3873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3872] write(3, "1000", 4 [pid 3874] setpgid(0, 0 [pid 3873] <... prctl resumed>) = 0 [pid 3872] <... write resumed>) = 4 [pid 3871] <... mount resumed>) = -1 EIO (Input/output error) [pid 3870] +++ exited with 0 +++ [pid 3874] <... setpgid resumed>) = 0 [pid 3873] setpgid(0, 0 [pid 3872] close(3 [pid 3871] exit_group(0 [pid 3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3872] <... close resumed>) = 0 [pid 3871] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3870, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3873] <... setpgid resumed>) = 0 [pid 3874] <... openat resumed>) = 3 [pid 3872] memfd_create("syzkaller", 0 [pid 3871] +++ exited with 0 +++ [pid 3619] close(3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3874] write(3, "1000", 4 [pid 3872] <... memfd_create resumed>) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3874] <... write resumed>) = 4 [pid 3872] ftruncate(3, 0 [pid 3874] close(3 [pid 3872] <... ftruncate resumed>) = 0 [pid 3874] <... close resumed>) = 0 [pid 3873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3872] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3874] memfd_create("syzkaller", 0 [pid 3873] <... openat resumed>) = 3 [pid 3872] <... openat resumed>) = 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3871, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3874] <... memfd_create resumed>) = 3 [pid 3873] write(3, "1000", 4 [pid 3872] ioctl(4, LOOP_SET_FD, 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3874] ftruncate(3, 0 [pid 3873] <... write resumed>) = 4 [pid 3872] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3874] <... ftruncate resumed>) = 0 [pid 3873] close(3 [pid 3872] mkdir("./file0", 0777 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3875 [pid 3874] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3873] <... close resumed>) = 0 [pid 3872] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 3874] <... openat resumed>) = 4 [pid 3873] memfd_create("syzkaller", 0 [pid 3872] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3875 attached [pid 3874] ioctl(4, LOOP_SET_FD, 3 [pid 3873] <... memfd_create resumed>) = 3 [pid 3872] pipe2( [pid 3875] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3874] <... ioctl resumed>) = 0 [pid 3873] ftruncate(3, 0 [pid 3872] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3875] <... prctl resumed>) = 0 [pid 3874] mkdir("./file0", 0777 [pid 3873] <... ftruncate resumed>) = 0 [pid 3872] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3875] setpgid(0, 0 [pid 3874] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3873] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3872] <... write resumed>) = 21 [pid 3875] <... setpgid resumed>) = 0 [pid 3874] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3873] <... openat resumed>) = 4 [pid 3872] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3874] pipe2( [pid 3873] ioctl(4, LOOP_SET_FD, 3 [pid 3875] <... openat resumed>) = 3 [pid 3874] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3875] write(3, "1000", 4 [pid 3874] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3875] <... write resumed>) = 4 [pid 3874] <... write resumed>) = 21 [pid 3873] <... ioctl resumed>) = 0 [pid 3875] close(3 [pid 3874] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3873] mkdir("./file0", 0777 [pid 3875] <... close resumed>) = 0 [pid 3873] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3875] memfd_create("syzkaller", 0 [pid 3873] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3875] <... memfd_create resumed>) = 3 [pid 3873] pipe2( [pid 3875] ftruncate(3, 0) = 0 [pid 3873] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3875] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3873] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3875] <... openat resumed>) = 4 [pid 3873] <... write resumed>) = 21 [pid 3875] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3873] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3875] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3875] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3875] pipe2( [pid 3872] <... mount resumed>) = -1 EIO (Input/output error) [pid 3875] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3872] exit_group(0 [pid 3875] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3872] <... exit_group resumed>) = ? [pid 3875] <... write resumed>) = 21 [pid 3875] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3872] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3872, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3876 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3877 ./strace-static-x86_64: Process 3876 attached [pid 3876] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3876] setpgid(0, 0) = 0 [pid 3876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3877 attached [pid 3877] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3874] <... mount resumed>) = -1 EIO (Input/output error) [pid 3874] exit_group(0) = ? [pid 3877] <... prctl resumed>) = 0 [pid 3874] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3874, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3877] setpgid(0, 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3877] <... setpgid resumed>) = 0 [pid 3876] <... openat resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3876] write(3, "1000", 4) = 4 [pid 3876] close(3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3876] <... close resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3877] <... openat resumed>) = 3 [pid 3876] memfd_create("syzkaller", 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3877] write(3, "1000", 4 [pid 3876] <... memfd_create resumed>) = 3 [pid 3877] <... write resumed>) = 4 [pid 3876] ftruncate(3, 0 [pid 3877] close(3 [pid 3876] <... ftruncate resumed>) = 0 [pid 3877] <... close resumed>) = 0 [pid 3876] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3877] memfd_create("syzkaller", 0 [pid 3876] ioctl(4, LOOP_SET_FD, 3 [pid 3877] <... memfd_create resumed>) = 3 [pid 3876] <... ioctl resumed>) = 0 [pid 3877] ftruncate(3, 0 [pid 3876] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3877] <... ftruncate resumed>) = 0 [pid 3876] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3877] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3876] pipe2([5, 6], 0) = 0 [pid 3877] <... openat resumed>) = 4 [pid 3877] ioctl(4, LOOP_SET_FD, 3 [pid 3876] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3877] <... ioctl resumed>) = 0 [pid 3876] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3877] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3877] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3877] pipe2([5, 6], 0) = 0 [pid 3877] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3877] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3878 ./strace-static-x86_64: Process 3878 attached [pid 3878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3878] setpgid(0, 0) = 0 [pid 3873] <... mount resumed>) = -1 EIO (Input/output error) [pid 3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3873] exit_group(0 [pid 3878] <... openat resumed>) = 3 [pid 3873] <... exit_group resumed>) = ? [pid 3878] write(3, "1000", 4 [pid 3873] +++ exited with 0 +++ [pid 3878] <... write resumed>) = 4 [pid 3878] close(3) = 0 [pid 3878] memfd_create("syzkaller", 0) = 3 [pid 3878] ftruncate(3, 0) = 0 [pid 3878] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3873, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3878] ioctl(4, LOOP_SET_FD, 3 [pid 3618] close(3 [pid 3878] <... ioctl resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3878] mkdir("./file0", 0777 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3878] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3878] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3879 [pid 3878] pipe2( [pid 3615] <... openat resumed>) = 3 [pid 3878] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3878] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3875] <... mount resumed>) = -1 EIO (Input/output error) [pid 3878] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3875] exit_group(0./strace-static-x86_64: Process 3879 attached [pid 3879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3875] <... exit_group resumed>) = ? [pid 3879] <... prctl resumed>) = 0 [pid 3879] setpgid(0, 0) = 0 [pid 3879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3875] +++ exited with 0 +++ [pid 3879] <... openat resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3875, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3879] write(3, "1000", 4 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3879] <... write resumed>) = 4 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3879] close(3) = 0 [pid 3879] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3879] <... memfd_create resumed>) = 3 [pid 3879] ftruncate(3, 0) = 0 [pid 3879] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 3879] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3879] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3879] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3879] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3879] pipe2([5, 6], 0) = 0 [pid 3879] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3879] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3877] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3877] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 3877] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3880 [pid 3877] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3877, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3880 attached [pid 3880] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3880] setpgid(0, 0) = 0 [pid 3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3880] write(3, "1000", 4) = 4 [pid 3880] close(3) = 0 [pid 3880] memfd_create("syzkaller", 0) = 3 [pid 3880] ftruncate(3, 0) = 0 [pid 3880] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3880] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3880] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3880] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3880] pipe2([5, 6], 0) = 0 [pid 3880] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3880] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3876] <... mount resumed>) = -1 EIO (Input/output error) [pid 3876] exit_group(0) = ? [pid 3876] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3876, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3881 ./strace-static-x86_64: Process 3881 attached [pid 3879] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3879] exit_group(0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3882 [pid 3879] <... exit_group resumed>) = ? [pid 3881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3881] setpgid(0, 0) = 0 [pid 3881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3881] write(3, "1000", 4) = 4 [pid 3881] close(3) = 0 [pid 3881] memfd_create("syzkaller", 0 [pid 3879] +++ exited with 0 +++ ./strace-static-x86_64: Process 3882 attached [pid 3881] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3879, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... ioctl resumed>) = 0 [pid 3882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3881] ftruncate(3, 0 [pid 3617] close(3 [pid 3882] <... prctl resumed>) = 0 [pid 3881] <... ftruncate resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3882] setpgid(0, 0 [pid 3881] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3882] <... setpgid resumed>) = 0 [pid 3881] <... openat resumed>) = 4 [pid 3882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3881] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3883 [pid 3882] <... openat resumed>) = 3 [pid 3881] <... ioctl resumed>) = 0 [pid 3882] write(3, "1000", 4 [pid 3881] mkdir("./file0", 0777 [pid 3882] <... write resumed>) = 4 [pid 3881] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3882] close(3 [pid 3881] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 3882] <... close resumed>) = 0 [pid 3881] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3882] memfd_create("syzkaller", 0 [pid 3881] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3882] <... memfd_create resumed>) = 3 [pid 3881] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3882] ftruncate(3, 0 [pid 3881] <... write resumed>) = 21 [pid 3882] <... ftruncate resumed>) = 0 [pid 3881] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3882] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3882] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3882] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3882] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3883 attached [pid 3882] pipe2( [pid 3878] <... mount resumed>) = -1 EIO (Input/output error) [pid 3882] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3882] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3882] <... write resumed>) = 21 [pid 3878] exit_group(0 [pid 3882] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3883] <... prctl resumed>) = 0 [pid 3878] <... exit_group resumed>) = ? [pid 3883] setpgid(0, 0 [pid 3878] +++ exited with 0 +++ [pid 3883] <... setpgid resumed>) = 0 [pid 3883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3878, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3883] <... openat resumed>) = 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3883] write(3, "1000", 4) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3883] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3883] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3883] memfd_create("syzkaller", 0) = 3 [pid 3883] ftruncate(3, 0) = 0 [pid 3883] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3883] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3883] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3883] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3883] pipe2([5, 6], 0) = 0 [pid 3883] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3883] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3880] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3880] exit_group(0) = ? [pid 3618] close(3 [pid 3880] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3880, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3884 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3884 attached [pid 3620] <... ioctl resumed>) = 0 [pid 3884] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3884] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3884] setpgid(0, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3885 ./strace-static-x86_64: Process 3885 attached [pid 3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3885] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3885] setpgid(0, 0) = 0 [pid 3884] write(3, "1000", 4) = 4 [pid 3884] close(3) = 0 [pid 3885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3884] memfd_create("syzkaller", 0 [pid 3885] <... openat resumed>) = 3 [pid 3884] <... memfd_create resumed>) = 3 [pid 3885] write(3, "1000", 4 [pid 3884] ftruncate(3, 0 [pid 3885] <... write resumed>) = 4 [pid 3884] <... ftruncate resumed>) = 0 [pid 3885] close(3 [pid 3884] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3885] <... close resumed>) = 0 [pid 3884] <... openat resumed>) = 4 [pid 3885] memfd_create("syzkaller", 0 [pid 3884] ioctl(4, LOOP_SET_FD, 3 [pid 3885] <... memfd_create resumed>) = 3 [pid 3884] <... ioctl resumed>) = 0 [pid 3885] ftruncate(3, 0) = 0 [pid 3884] mkdir("./file0", 0777 [pid 3881] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3885] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3884] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3881] exit_group(0 [pid 3615] close(3 [pid 3885] <... openat resumed>) = 4 [pid 3881] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3885] ioctl(4, LOOP_SET_FD, 3 [pid 3884] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3881] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3885] <... ioctl resumed>) = 0 [pid 3884] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3881, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3885] mkdir("./file0", 0777 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3886 [pid 3885] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3884] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3885] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3884] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3885] pipe2( [pid 3884] <... write resumed>) = 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3885] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3884] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... openat resumed>) = 3 [pid 3885] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3885] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3882] <... mount resumed>) = -1 EIO (Input/output error) [pid 3882] exit_group(0) = ? [pid 3882] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3882, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3886 attached [pid 3886] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3886] setpgid(0, 0) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3883] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 3886] <... openat resumed>) = 3 [pid 3883] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3616] close(3 [pid 3886] write(3, "1000", 4 [pid 3883] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 3886] <... write resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3886] close(3 [pid 3883] +++ exited with 0 +++ ./strace-static-x86_64: Process 3887 attached [pid 3886] <... close resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3887 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3883, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3888 [pid 3887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3886] memfd_create("syzkaller", 0 [pid 3887] <... prctl resumed>) = 0 [pid 3886] <... memfd_create resumed>) = 3 [pid 3887] setpgid(0, 0 [pid 3886] ftruncate(3, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3888 attached [pid 3887] <... setpgid resumed>) = 0 [pid 3886] <... ftruncate resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3888] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3886] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3888] <... prctl resumed>) = 0 [pid 3887] <... openat resumed>) = 3 [pid 3886] <... openat resumed>) = 4 [pid 3888] setpgid(0, 0 [pid 3887] write(3, "1000", 4 [pid 3886] ioctl(4, LOOP_SET_FD, 3 [pid 3888] <... setpgid resumed>) = 0 [pid 3887] <... write resumed>) = 4 [pid 3886] <... ioctl resumed>) = 0 [pid 3888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3887] close(3 [pid 3886] mkdir("./file0", 0777 [pid 3888] <... openat resumed>) = 3 [pid 3885] <... mount resumed>) = -1 EIO (Input/output error) [pid 3888] write(3, "1000", 4) = 4 [pid 3888] close(3) = 0 [pid 3888] memfd_create("syzkaller", 0) = 3 [pid 3888] ftruncate(3, 0) = 0 [pid 3888] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3888] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3888] mkdir("./file0", 0777 [pid 3887] <... close resumed>) = 0 [pid 3888] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3887] memfd_create("syzkaller", 0 [pid 3886] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3885] exit_group(0 [pid 3888] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3887] <... memfd_create resumed>) = 3 [pid 3886] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3885] <... exit_group resumed>) = ? [pid 3888] pipe2( [pid 3887] ftruncate(3, 0 [pid 3886] pipe2( [pid 3888] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3887] <... ftruncate resumed>) = 0 [pid 3886] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3885] +++ exited with 0 +++ [pid 3888] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3887] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3886] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3884] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3885, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3888] <... write resumed>) = 21 [pid 3887] <... openat resumed>) = 4 [pid 3886] <... write resumed>) = 21 [pid 3884] exit_group(0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3888] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3887] ioctl(4, LOOP_SET_FD, 3 [pid 3886] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3884] <... exit_group resumed>) = ? [pid 3620] <... restart_syscall resumed>) = 0 [pid 3887] <... ioctl resumed>) = 0 [pid 3884] +++ exited with 0 +++ [pid 3887] mkdir("./file0", 0777 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3884, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3887] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3887] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3887] pipe2( [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3887] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3887] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3887] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 3887] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3889 [pid 3888] <... mount resumed>) = -1 EIO (Input/output error) [pid 3888] exit_group(0) = ? [pid 3888] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3888, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3889 attached [pid 3889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3889] setpgid(0, 0) = 0 [pid 3889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3889] write(3, "1000", 4 [pid 3620] close(3 [pid 3618] close(3 [pid 3889] <... write resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3889] close(3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3889] <... close resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3891 [pid 3889] memfd_create("syzkaller", 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3890 [pid 3889] <... memfd_create resumed>) = 3 [pid 3889] ftruncate(3, 0./strace-static-x86_64: Process 3891 attached ) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3891] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3889] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] close(3 [pid 3891] <... prctl resumed>) = 0 [pid 3889] <... openat resumed>) = 4 [pid 3616] <... close resumed>) = 0 ./strace-static-x86_64: Process 3890 attached [pid 3891] setpgid(0, 0 [pid 3889] ioctl(4, LOOP_SET_FD, 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3891] <... setpgid resumed>) = 0 [pid 3890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3889] <... ioctl resumed>) = 0 [pid 3891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3890] <... prctl resumed>) = 0 [pid 3889] mkdir("./file0", 0777 [pid 3887] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3892 [pid 3890] setpgid(0, 0) = 0 [pid 3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3890] write(3, "1000", 4) = 4 [pid 3890] close(3) = 0 [pid 3890] memfd_create("syzkaller", 0) = 3 [pid 3890] ftruncate(3, 0) = 0 [pid 3890] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3890] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3890] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3890] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3890] pipe2([5, 6], 0) = 0 [pid 3890] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3890] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3889] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3891] <... openat resumed>) = 3 [pid 3889] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3887] exit_group(0 [pid 3891] write(3, "1000", 4 [pid 3889] pipe2( [pid 3887] <... exit_group resumed>) = ? [pid 3891] <... write resumed>) = 4 [pid 3889] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3891] close(3 [pid 3889] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3887] +++ exited with 0 +++ ./strace-static-x86_64: Process 3892 attached [pid 3891] <... close resumed>) = 0 [pid 3889] <... write resumed>) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3887, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3891] memfd_create("syzkaller", 0 [pid 3889] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3892] <... prctl resumed>) = 0 [pid 3891] <... memfd_create resumed>) = 3 [pid 3892] setpgid(0, 0 [pid 3891] ftruncate(3, 0 [pid 3892] <... setpgid resumed>) = 0 [pid 3891] <... ftruncate resumed>) = 0 [pid 3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3891] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3892] <... openat resumed>) = 3 [pid 3892] write(3, "1000", 4 [pid 3891] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3892] <... write resumed>) = 4 [pid 3891] <... ioctl resumed>) = 0 [pid 3886] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 3892] close(3 [pid 3891] mkdir("./file0", 0777 [pid 3886] exit_group(0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3892] <... close resumed>) = 0 [pid 3891] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3886] <... exit_group resumed>) = ? [pid 3892] memfd_create("syzkaller", 0 [pid 3891] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3892] <... memfd_create resumed>) = 3 [pid 3891] pipe2( [pid 3886] +++ exited with 0 +++ [pid 3892] ftruncate(3, 0 [pid 3891] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3892] <... ftruncate resumed>) = 0 [pid 3891] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3886, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3892] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3891] <... write resumed>) = 21 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3892] <... openat resumed>) = 4 [pid 3891] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... restart_syscall resumed>) = 0 [pid 3892] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3890] <... mount resumed>) = -1 EIO (Input/output error) [pid 3890] exit_group(0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3890] <... exit_group resumed>) = ? [pid 3615] <... openat resumed>) = 3 [pid 3892] mkdir("./file0", 0777 [pid 3890] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3892] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3890, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] close(3 [pid 3892] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... close resumed>) = 0 [pid 3892] pipe2( [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3892] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3892] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3893 [pid 3892] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3893 attached [pid 3893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3893] setpgid(0, 0) = 0 [pid 3893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3889] <... mount resumed>) = -1 EIO (Input/output error) [pid 3893] <... openat resumed>) = 3 [pid 3889] exit_group(0 [pid 3893] write(3, "1000", 4 [pid 3889] <... exit_group resumed>) = ? [pid 3893] <... write resumed>) = 4 [pid 3893] close(3) = 0 [pid 3889] +++ exited with 0 +++ [pid 3893] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3889, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3893] <... memfd_create resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3893] ftruncate(3, 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3891] <... mount resumed>) = -1 EIO (Input/output error) [pid 3891] exit_group(0) = ? [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3891] +++ exited with 0 +++ [pid 3617] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3891, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3893] <... ftruncate resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3893] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] close(3 [pid 3893] <... openat resumed>) = 4 [pid 3892] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... close resumed>) = 0 [pid 3893] ioctl(4, LOOP_SET_FD, 3 [pid 3892] exit_group(0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3893] <... ioctl resumed>) = 0 [pid 3892] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3893] mkdir("./file0", 0777 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3894 [pid 3893] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3892] +++ exited with 0 +++ [pid 3620] close(3 [pid 3893] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3892, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 3894 attached [pid 3893] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3893] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3893] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3893] <... write resumed>) = 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3895 ./strace-static-x86_64: Process 3895 attached [pid 3894] <... prctl resumed>) = 0 [pid 3893] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3894] setpgid(0, 0 [pid 3618] close(3 [pid 3617] close(3 [pid 3895] <... prctl resumed>) = 0 [pid 3894] <... setpgid resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3895] setpgid(0, 0 [pid 3894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... openat resumed>) = 3 [pid 3895] <... setpgid resumed>) = 0 [pid 3894] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3896 attached [pid 3895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3894] write(3, "1000", 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3896 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3897 [pid 3896] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3895] <... openat resumed>) = 3 [pid 3894] <... write resumed>) = 4 [pid 3896] <... prctl resumed>) = 0 [pid 3895] write(3, "1000", 4 [pid 3894] close(3 [pid 3896] setpgid(0, 0 [pid 3895] <... write resumed>) = 4 [pid 3894] <... close resumed>) = 0 ./strace-static-x86_64: Process 3897 attached [pid 3896] <... setpgid resumed>) = 0 [pid 3895] close(3 [pid 3894] memfd_create("syzkaller", 0 [pid 3893] <... mount resumed>) = -1 EIO (Input/output error) [pid 3897] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3895] <... close resumed>) = 0 [pid 3894] <... memfd_create resumed>) = 3 [pid 3893] exit_group(0 [pid 3897] <... prctl resumed>) = 0 [pid 3896] <... openat resumed>) = 3 [pid 3895] memfd_create("syzkaller", 0 [pid 3894] ftruncate(3, 0 [pid 3893] <... exit_group resumed>) = ? [pid 3897] setpgid(0, 0 [pid 3896] write(3, "1000", 4 [pid 3895] <... memfd_create resumed>) = 3 [pid 3894] <... ftruncate resumed>) = 0 [pid 3893] +++ exited with 0 +++ [pid 3897] <... setpgid resumed>) = 0 [pid 3896] <... write resumed>) = 4 [pid 3895] ftruncate(3, 0 [pid 3894] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3893, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3896] close(3 [pid 3895] <... ftruncate resumed>) = 0 [pid 3894] <... openat resumed>) = 4 [pid 3897] <... openat resumed>) = 3 [pid 3896] <... close resumed>) = 0 [pid 3895] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3894] ioctl(4, LOOP_SET_FD, 3 [pid 3897] write(3, "1000", 4 [pid 3896] memfd_create("syzkaller", 0 [pid 3895] <... openat resumed>) = 4 [pid 3894] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3897] <... write resumed>) = 4 [pid 3896] <... memfd_create resumed>) = 3 [pid 3895] ioctl(4, LOOP_SET_FD, 3 [pid 3894] mkdir("./file0", 0777 [pid 3619] <... openat resumed>) = 3 [pid 3897] close(3 [pid 3896] ftruncate(3, 0 [pid 3895] <... ioctl resumed>) = 0 [pid 3894] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3897] <... close resumed>) = 0 [pid 3896] <... ftruncate resumed>) = 0 [pid 3895] mkdir("./file0", 0777 [pid 3894] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3897] memfd_create("syzkaller", 0 [pid 3896] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3895] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3894] pipe2( [pid 3897] <... memfd_create resumed>) = 3 [pid 3896] <... openat resumed>) = 4 [pid 3895] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3894] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3897] ftruncate(3, 0 [pid 3896] ioctl(4, LOOP_SET_FD, 3 [pid 3895] pipe2( [pid 3894] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3897] <... ftruncate resumed>) = 0 [pid 3896] <... ioctl resumed>) = 0 [pid 3895] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3894] <... write resumed>) = 21 [pid 3897] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3896] mkdir("./file0", 0777 [pid 3895] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3894] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3897] <... openat resumed>) = 4 [pid 3896] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3895] <... write resumed>) = 21 [pid 3897] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3897] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3897] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3897] pipe2([5, 6], 0) = 0 [pid 3897] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3897] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3896] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3895] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3896] pipe2( [pid 3616] close(3 [pid 3896] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... close resumed>) = 0 [pid 3896] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3896] <... write resumed>) = 21 [pid 3896] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3898 ./strace-static-x86_64: Process 3898 attached [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3898] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... close resumed>) = 0 [pid 3898] <... prctl resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3898] setpgid(0, 0 [pid 3894] <... mount resumed>) = -1 EIO (Input/output error) [pid 3898] <... setpgid resumed>) = 0 [pid 3894] exit_group(0 [pid 3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3894] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3899 ./strace-static-x86_64: Process 3899 attached [pid 3898] <... openat resumed>) = 3 [pid 3898] write(3, "1000", 4 [pid 3894] +++ exited with 0 +++ [pid 3899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3898] <... write resumed>) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3894, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3899] <... prctl resumed>) = 0 [pid 3898] close(3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3899] setpgid(0, 0 [pid 3898] <... close resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3899] <... setpgid resumed>) = 0 [pid 3898] memfd_create("syzkaller", 0 [pid 3899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3898] <... memfd_create resumed>) = 3 [pid 3897] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3897] exit_group(0 [pid 3615] <... openat resumed>) = 3 [pid 3897] <... exit_group resumed>) = ? [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3897] +++ exited with 0 +++ [pid 3898] ftruncate(3, 0 [pid 3899] <... openat resumed>) = 3 [pid 3898] <... ftruncate resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3897, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3899] write(3, "1000", 4 [pid 3898] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3899] <... write resumed>) = 4 [pid 3898] <... openat resumed>) = 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3899] close(3 [pid 3898] ioctl(4, LOOP_SET_FD, 3 [pid 3899] <... close resumed>) = 0 [pid 3898] <... ioctl resumed>) = 0 [pid 3899] memfd_create("syzkaller", 0 [pid 3898] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3899] <... memfd_create resumed>) = 3 [pid 3898] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 [pid 3899] ftruncate(3, 0 [pid 3898] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3899] <... ftruncate resumed>) = 0 [pid 3898] pipe2( [pid 3899] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3898] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3899] <... openat resumed>) = 4 [pid 3899] ioctl(4, LOOP_SET_FD, 3 [pid 3898] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... ioctl resumed>) = 0 [pid 3899] <... ioctl resumed>) = 0 [pid 3898] <... write resumed>) = 21 [pid 3615] close(3 [pid 3899] mkdir("./file0", 0777 [pid 3898] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... close resumed>) = 0 [pid 3899] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3899] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3899] pipe2([5, 6], 0) = 0 [pid 3899] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3899] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3900 ./strace-static-x86_64: Process 3900 attached [pid 3900] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3895] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3900] <... prctl resumed>) = 0 [pid 3895] exit_group(0) = ? [pid 3895] +++ exited with 0 +++ [pid 3896] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] close(3 [pid 3900] setpgid(0, 0 [pid 3617] <... close resumed>) = 0 [pid 3900] <... setpgid resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3896] exit_group(0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3895, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3900] <... openat resumed>) = 3 [pid 3896] <... exit_group resumed>) = ? [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3900] write(3, "1000", 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3901 ./strace-static-x86_64: Process 3901 attached [pid 3900] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3900] close(3 [pid 3896] +++ exited with 0 +++ [pid 3900] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3896, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3900] memfd_create("syzkaller", 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3900] <... memfd_create resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3900] ftruncate(3, 0) = 0 [pid 3900] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3900] <... openat resumed>) = 4 [pid 3900] ioctl(4, LOOP_SET_FD, 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3900] <... ioctl resumed>) = 0 [pid 3900] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3900] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3900] pipe2([5, 6], 0) = 0 [pid 3901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3900] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3900] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3901] <... prctl resumed>) = 0 [pid 3901] setpgid(0, 0) = 0 [pid 3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] close(3) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3902 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3903 ./strace-static-x86_64: Process 3903 attached [pid 3901] <... openat resumed>) = 3 [pid 3898] <... mount resumed>) = -1 EIO (Input/output error) [pid 3903] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3901] write(3, "1000", 4 [pid 3898] exit_group(0 [pid 3901] <... write resumed>) = 4 ./strace-static-x86_64: Process 3902 attached [pid 3903] <... prctl resumed>) = 0 [pid 3901] close(3 [pid 3898] <... exit_group resumed>) = ? [pid 3901] <... close resumed>) = 0 [pid 3898] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3898, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3901] memfd_create("syzkaller", 0) = 3 [pid 3903] setpgid(0, 0 [pid 3901] ftruncate(3, 0 [pid 3902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3903] <... setpgid resumed>) = 0 [pid 3902] <... prctl resumed>) = 0 [pid 3901] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3901] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3901] ioctl(4, LOOP_SET_FD, 3 [pid 3902] setpgid(0, 0 [pid 3903] <... openat resumed>) = 3 [pid 3901] <... ioctl resumed>) = 0 [pid 3902] <... setpgid resumed>) = 0 [pid 3903] write(3, "1000", 4 [pid 3901] mkdir("./file0", 0777 [pid 3902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3899] <... mount resumed>) = -1 EIO (Input/output error) [pid 3899] exit_group(0) = ? [pid 3899] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3899, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3903] <... write resumed>) = 4 [pid 3901] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3903] close(3 [pid 3902] <... openat resumed>) = 3 [pid 3901] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3903] <... close resumed>) = 0 [pid 3902] write(3, "1000", 4 [pid 3901] pipe2( [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3903] memfd_create("syzkaller", 0 [pid 3902] <... write resumed>) = 4 [pid 3901] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3903] <... memfd_create resumed>) = 3 [pid 3902] close(3 [pid 3901] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3903] ftruncate(3, 0 [pid 3902] <... close resumed>) = 0 [pid 3901] <... write resumed>) = 21 [pid 3903] <... ftruncate resumed>) = 0 [pid 3903] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3902] memfd_create("syzkaller", 0 [pid 3901] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3900] <... mount resumed>) = -1 EIO (Input/output error) [pid 3903] <... openat resumed>) = 4 [pid 3903] ioctl(4, LOOP_SET_FD, 3 [pid 3902] <... memfd_create resumed>) = 3 [pid 3900] exit_group(0 [pid 3902] ftruncate(3, 0 [pid 3900] <... exit_group resumed>) = ? [pid 3902] <... ftruncate resumed>) = 0 [pid 3902] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3902] ioctl(4, LOOP_SET_FD, 3 [pid 3900] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3900, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3903] <... ioctl resumed>) = 0 [pid 3902] <... ioctl resumed>) = 0 [pid 3903] mkdir("./file0", 0777 [pid 3902] mkdir("./file0", 0777 [pid 3616] <... ioctl resumed>) = 0 [pid 3903] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3902] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3903] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3902] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] close(3 [pid 3903] pipe2( [pid 3902] pipe2( [pid 3901] <... mount resumed>) = -1 EIO (Input/output error) [pid 3903] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3902] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3901] exit_group(0 [pid 3616] <... close resumed>) = 0 [pid 3903] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3902] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3901] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3903] <... write resumed>) = 21 [pid 3902] <... write resumed>) = 21 [pid 3902] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3903] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3904 ./strace-static-x86_64: Process 3904 attached [pid 3904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3904] setpgid(0, 0) = 0 [pid 3904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3904] write(3, "1000", 4) = 4 [pid 3904] close(3) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3904] memfd_create("syzkaller", 0) = 3 [pid 3904] ftruncate(3, 0) = 0 [pid 3904] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3905 [pid 3904] ioctl(4, LOOP_SET_FD, 3 [pid 3901] +++ exited with 0 +++ [pid 3904] <... ioctl resumed>) = 0 [pid 3904] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3901, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3904] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3904] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3904] pipe2([5, 6], 0) = 0 [pid 3904] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 ./strace-static-x86_64: Process 3905 attached [pid 3904] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3905] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3902] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3905] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3905] setpgid(0, 0) = 0 [pid 3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3902] exit_group(0 [pid 3905] <... openat resumed>) = 3 [pid 3902] <... exit_group resumed>) = ? [pid 3905] write(3, "1000", 4) = 4 [pid 3615] <... ioctl resumed>) = 0 [pid 3905] close(3 [pid 3615] close(3 [pid 3905] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3905] memfd_create("syzkaller", 0 [pid 3902] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3905] <... memfd_create resumed>) = 3 [pid 3905] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3902, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3906 [pid 3905] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3905] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3905] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3905] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3906 attached ) = 0 [pid 3903] <... mount resumed>) = -1 EIO (Input/output error) [pid 3905] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3905] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3905] pipe2([5, 6], 0) = 0 [pid 3905] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3905] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3903] exit_group(0) = ? [pid 3903] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3903, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3906] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3906] setpgid(0, 0) = 0 [pid 3906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3906] write(3, "1000", 4) = 4 [pid 3906] close(3) = 0 [pid 3906] memfd_create("syzkaller", 0) = 3 [pid 3906] ftruncate(3, 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3906] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3906] <... openat resumed>) = 4 [pid 3906] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3907 [pid 3906] <... ioctl resumed>) = 0 [pid 3906] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3906] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3906] pipe2([5, 6], 0) = 0 [pid 3906] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 3907 attached ) = 21 [pid 3904] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3907] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3906] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3904] exit_group(0 [pid 3620] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3908 [pid 3907] setpgid(0, 0./strace-static-x86_64: Process 3908 attached [pid 3904] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3907] <... setpgid resumed>) = 0 [pid 3908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3908] setpgid(0, 0) = 0 [pid 3904] +++ exited with 0 +++ [pid 3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3907] <... openat resumed>) = 3 [pid 3908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3907] write(3, "1000", 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3904, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3908] write(3, "1000", 4 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3907] <... write resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3909 [pid 3908] <... write resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3908] close(3) = 0 [pid 3908] memfd_create("syzkaller", 0) = 3 [pid 3908] ftruncate(3, 0) = 0 [pid 3908] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 3909 attached ) = 4 [pid 3907] close(3) = 0 [pid 3909] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3908] ioctl(4, LOOP_SET_FD, 3 [pid 3907] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3909] <... prctl resumed>) = 0 [pid 3908] <... ioctl resumed>) = 0 [pid 3907] <... memfd_create resumed>) = 3 [pid 3909] setpgid(0, 0 [pid 3908] mkdir("./file0", 0777 [pid 3907] ftruncate(3, 0 [pid 3616] <... openat resumed>) = 3 [pid 3909] <... setpgid resumed>) = 0 [pid 3908] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3907] <... ftruncate resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3908] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3905] <... mount resumed>) = -1 EIO (Input/output error) [pid 3909] <... openat resumed>) = 3 [pid 3908] pipe2( [pid 3905] exit_group(0 [pid 3909] write(3, "1000", 4 [pid 3908] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3905] <... exit_group resumed>) = ? [pid 3909] <... write resumed>) = 4 [pid 3908] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3905] +++ exited with 0 +++ [pid 3909] close(3 [pid 3908] <... write resumed>) = 21 [pid 3909] <... close resumed>) = 0 [pid 3908] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3909] memfd_create("syzkaller", 0) = 3 [pid 3909] ftruncate(3, 0) = 0 [pid 3909] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3909] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3909] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3909] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3909] pipe2([5, 6], 0) = 0 [pid 3909] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3909] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3907] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3905, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3907] <... openat resumed>) = 4 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3907] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3907] mkdir("./file0", 0777 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3907] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3907] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3907] pipe2( [pid 3906] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3907] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3906] exit_group(0 [pid 3619] <... openat resumed>) = 3 [pid 3908] <... mount resumed>) = -1 EIO (Input/output error) [pid 3907] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3906] <... exit_group resumed>) = ? [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3907] <... write resumed>) = 21 [pid 3906] +++ exited with 0 +++ [pid 3907] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3908] exit_group(0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3906, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3908] <... exit_group resumed>) = ? [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3908] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3908, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3909] <... mount resumed>) = -1 EIO (Input/output error) [pid 3909] exit_group(0) = ? [pid 3909] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3909, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3619] close(3 [pid 3616] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3910 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3911 ./strace-static-x86_64: Process 3910 attached ./strace-static-x86_64: Process 3911 attached [pid 3911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3911] setpgid(0, 0) = 0 [pid 3911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3911] write(3, "1000", 4) = 4 [pid 3911] close(3) = 0 [pid 3911] memfd_create("syzkaller", 0) = 3 [pid 3911] ftruncate(3, 0) = 0 [pid 3911] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3911] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3911] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3911] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3907] <... mount resumed>) = -1 EIO (Input/output error) [pid 3910] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3910] setpgid(0, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3910] <... setpgid resumed>) = 0 [pid 3907] exit_group(0 [pid 3620] close(3 [pid 3911] pipe2( [pid 3618] close(3 [pid 3615] close(3 [pid 3911] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3907] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3911] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3910] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3910] write(3, "1000", 4 [pid 3907] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3911] <... write resumed>) = 21 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3910] <... write resumed>) = 4 [pid 3910] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3907, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3911] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3910] <... close resumed>) = 0 [pid 3910] memfd_create("syzkaller", 0) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3912 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3913 [pid 3910] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 3912 attached [pid 3910] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3912] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3910] <... openat resumed>) = 4 [pid 3910] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 3914 attached [pid 3910] mkdir("./file0", 0777 [pid 3914] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3910] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3914] <... prctl resumed>) = 0 [pid 3910] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3914] setpgid(0, 0 [pid 3912] <... prctl resumed>) = 0 [pid 3910] pipe2( [pid 3914] <... setpgid resumed>) = 0 [pid 3912] setpgid(0, 0 [pid 3910] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3912] <... setpgid resumed>) = 0 [pid 3910] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3914] <... openat resumed>) = 3 [pid 3912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3910] <... write resumed>) = 21 [pid 3914] write(3, "1000", 4 [pid 3912] <... openat resumed>) = 3 [pid 3910] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3914] <... write resumed>) = 4 [pid 3912] write(3, "1000", 4 [pid 3914] close(3 [pid 3912] <... write resumed>) = 4 [pid 3914] <... close resumed>) = 0 [pid 3912] close(3 [pid 3914] memfd_create("syzkaller", 0 [pid 3912] <... close resumed>) = 0 [pid 3914] <... memfd_create resumed>) = 3 [pid 3912] memfd_create("syzkaller", 0 [pid 3914] ftruncate(3, 0 [pid 3912] <... memfd_create resumed>) = 3 [pid 3914] <... ftruncate resumed>) = 0 [pid 3912] ftruncate(3, 0 [pid 3914] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3912] <... ftruncate resumed>) = 0 [pid 3914] <... openat resumed>) = 4 [pid 3912] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3914] ioctl(4, LOOP_SET_FD, 3 [pid 3912] <... openat resumed>) = 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3914 ./strace-static-x86_64: Process 3913 attached [pid 3914] <... ioctl resumed>) = 0 [pid 3912] ioctl(4, LOOP_SET_FD, 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3914] mkdir("./file0", 0777 [pid 3913] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3912] <... ioctl resumed>) = 0 [pid 3914] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3913] <... prctl resumed>) = 0 [pid 3912] mkdir("./file0", 0777 [pid 3617] <... openat resumed>) = 3 [pid 3914] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3913] setpgid(0, 0 [pid 3912] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3911] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3914] pipe2( [pid 3913] <... setpgid resumed>) = 0 [pid 3912] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3911] exit_group(0 [pid 3914] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3912] pipe2( [pid 3911] <... exit_group resumed>) = ? [pid 3914] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3913] <... openat resumed>) = 3 [pid 3912] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3914] <... write resumed>) = 21 [pid 3912] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3914] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3913] write(3, "1000", 4 [pid 3912] <... write resumed>) = 21 [pid 3911] +++ exited with 0 +++ [pid 3913] <... write resumed>) = 4 [pid 3912] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3913] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3911, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3913] <... close resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3913] memfd_create("syzkaller", 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3913] <... memfd_create resumed>) = 3 [pid 3913] ftruncate(3, 0 [pid 3910] <... mount resumed>) = -1 EIO (Input/output error) [pid 3913] <... ftruncate resumed>) = 0 [pid 3910] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3913] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3910] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 3913] <... openat resumed>) = 4 [pid 3910] +++ exited with 0 +++ [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3913] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3910, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3913] mkdir("./file0", 0777 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3913] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... restart_syscall resumed>) = 0 [pid 3913] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3913] pipe2([5, 6], 0) = 0 [pid 3913] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3913] <... write resumed>) = 21 [pid 3617] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3913] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3915 ./strace-static-x86_64: Process 3915 attached [pid 3915] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3915] setpgid(0, 0) = 0 [pid 3915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3915] write(3, "1000", 4) = 4 [pid 3915] close(3) = 0 [pid 3915] memfd_create("syzkaller", 0) = 3 [pid 3915] ftruncate(3, 0 [pid 3914] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3915] <... ftruncate resumed>) = 0 [pid 3914] exit_group(0 [pid 3619] close(3 [pid 3915] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3914] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3915] <... openat resumed>) = 4 [pid 3914] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3915] ioctl(4, LOOP_SET_FD, 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3914, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3915] <... ioctl resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3916 [pid 3915] mkdir("./file0", 0777 [pid 3616] <... ioctl resumed>) = 0 [pid 3915] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 3915] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3915] pipe2( [pid 3616] <... close resumed>) = 0 [pid 3915] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3912] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3915] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3912] exit_group(0 [pid 3915] <... write resumed>) = 21 [pid 3912] <... exit_group resumed>) = ? [pid 3915] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3917 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3912] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3912, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3917 attached ) = 0 [pid 3917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3917] setpgid(0, 0) = 0 [pid 3917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3917] write(3, "1000", 4) = 4 [pid 3917] close(3) = 0 [pid 3917] memfd_create("syzkaller", 0) = 3 [pid 3917] ftruncate(3, 0) = 0 [pid 3917] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3917] ioctl(4, LOOP_SET_FD, 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 3916 attached [pid 3917] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3917] mkdir("./file0", 0777 [pid 3916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3917] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3916] <... prctl resumed>) = 0 [pid 3917] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3916] setpgid(0, 0 [pid 3913] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3917] pipe2( [pid 3916] <... setpgid resumed>) = 0 [pid 3913] exit_group(0 [pid 3615] close(3 [pid 3917] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3913] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3917] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3916] <... openat resumed>) = 3 [pid 3917] <... write resumed>) = 21 [pid 3917] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3913] +++ exited with 0 +++ [pid 3916] write(3, "1000", 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3916] <... write resumed>) = 4 [pid 3916] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3913, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3916] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3918 [pid 3916] memfd_create("syzkaller", 0 [pid 3618] <... openat resumed>) = 3 [pid 3916] <... memfd_create resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3916] ftruncate(3, 0) = 0 [pid 3916] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3916] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3918 attached ) = 0 [pid 3915] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3915] exit_group(0) = ? [pid 3915] +++ exited with 0 +++ [pid 3918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3916] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3915, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3918] <... prctl resumed>) = 0 [pid 3916] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3918] setpgid(0, 0 [pid 3916] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3918] <... setpgid resumed>) = 0 [pid 3916] pipe2(./strace-static-x86_64: Process 3919 attached [pid 3918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3916] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3918] <... openat resumed>) = 3 [pid 3916] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3919 [pid 3918] write(3, "1000", 4 [pid 3917] <... mount resumed>) = -1 EIO (Input/output error) [pid 3916] <... write resumed>) = 21 [pid 3617] <... openat resumed>) = 3 [pid 3918] <... write resumed>) = 4 [pid 3917] exit_group(0 [pid 3916] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3918] close(3 [pid 3917] <... exit_group resumed>) = ? [pid 3919] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3918] <... close resumed>) = 0 [pid 3917] +++ exited with 0 +++ [pid 3919] <... prctl resumed>) = 0 [pid 3918] memfd_create("syzkaller", 0 [pid 3919] setpgid(0, 0 [pid 3918] <... memfd_create resumed>) = 3 [pid 3919] <... setpgid resumed>) = 0 [pid 3918] ftruncate(3, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3917, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3918] <... ftruncate resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3919] <... openat resumed>) = 3 [pid 3918] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... restart_syscall resumed>) = 0 [pid 3919] write(3, "1000", 4 [pid 3918] <... openat resumed>) = 4 [pid 3919] <... write resumed>) = 4 [pid 3918] ioctl(4, LOOP_SET_FD, 3 [pid 3919] close(3 [pid 3918] <... ioctl resumed>) = 0 [pid 3919] <... close resumed>) = 0 [pid 3918] mkdir("./file0", 0777 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3918] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3919] memfd_create("syzkaller", 0 [pid 3918] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... openat resumed>) = 3 [pid 3919] <... memfd_create resumed>) = 3 [pid 3918] pipe2( [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3919] ftruncate(3, 0 [pid 3918] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3919] <... ftruncate resumed>) = 0 [pid 3918] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... ioctl resumed>) = 0 [pid 3919] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3918] <... write resumed>) = 21 [pid 3618] close(3 [pid 3919] <... openat resumed>) = 4 [pid 3918] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 3919] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3919] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3919] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3919] pipe2( [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3920 [pid 3919] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3919] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3919] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3920 attached [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3920] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... close resumed>) = 0 [pid 3920] <... prctl resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3920] setpgid(0, 0) = 0 [pid 3920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3921 ./strace-static-x86_64: Process 3921 attached [pid 3920] write(3, "1000", 4) = 4 [pid 3921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3920] close(3 [pid 3921] <... prctl resumed>) = 0 [pid 3921] setpgid(0, 0 [pid 3920] <... close resumed>) = 0 [pid 3921] <... setpgid resumed>) = 0 [pid 3920] memfd_create("syzkaller", 0 [pid 3921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3920] <... memfd_create resumed>) = 3 [pid 3921] <... openat resumed>) = 3 [pid 3920] ftruncate(3, 0 [pid 3921] write(3, "1000", 4 [pid 3920] <... ftruncate resumed>) = 0 [pid 3921] <... write resumed>) = 4 [pid 3920] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3921] close(3 [pid 3920] <... openat resumed>) = 4 [pid 3921] <... close resumed>) = 0 [pid 3920] ioctl(4, LOOP_SET_FD, 3 [pid 3921] memfd_create("syzkaller", 0 [pid 3920] <... ioctl resumed>) = 0 [pid 3921] <... memfd_create resumed>) = 3 [pid 3920] mkdir("./file0", 0777 [pid 3916] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3921] ftruncate(3, 0 [pid 3920] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3916] exit_group(0 [pid 3616] close(3 [pid 3921] <... ftruncate resumed>) = 0 [pid 3920] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3916] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3921] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3920] pipe2( [pid 3916] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3921] <... openat resumed>) = 4 [pid 3920] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3916, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3921] ioctl(4, LOOP_SET_FD, 3 [pid 3920] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3921] <... ioctl resumed>) = 0 [pid 3920] <... write resumed>) = 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3922 [pid 3921] mkdir("./file0", 0777 [pid 3920] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3921] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3922 attached [pid 3921] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3919] <... mount resumed>) = -1 EIO (Input/output error) [pid 3919] exit_group(0) = ? [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3919] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3922] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3921] pipe2( [pid 3922] <... prctl resumed>) = 0 [pid 3921] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3918] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3919, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3921] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3922] setpgid(0, 0 [pid 3921] <... write resumed>) = 21 [pid 3920] <... mount resumed>) = -1 EIO (Input/output error) [pid 3918] exit_group(0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3922] <... setpgid resumed>) = 0 [pid 3921] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3918] <... exit_group resumed>) = ? [pid 3922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3922] write(3, "1000", 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3922] <... write resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3922] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3922] <... close resumed>) = 0 [pid 3922] memfd_create("syzkaller", 0) = 3 [pid 3922] ftruncate(3, 0 [pid 3918] +++ exited with 0 +++ [pid 3922] <... ftruncate resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3918, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3922] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3920] exit_group(0 [pid 3922] ioctl(4, LOOP_SET_FD, 3 [pid 3920] <... exit_group resumed>) = ? [pid 3922] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3922] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3920] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3922] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3920, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3922] pipe2( [pid 3619] <... close resumed>) = 0 [pid 3922] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3922] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3921] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3922] <... write resumed>) = 21 [pid 3921] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3923 [pid 3618] <... openat resumed>) = 3 [pid 3922] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3921] <... exit_group resumed>) = ? [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3921] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3921, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3923 attached [pid 3620] <... ioctl resumed>) = 0 [pid 3923] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3923] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3923] setpgid(0, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3923] <... setpgid resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3924 [pid 3923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3922] <... mount resumed>) = -1 EIO (Input/output error) [pid 3923] <... openat resumed>) = 3 [pid 3923] write(3, "1000", 4) = 4 [pid 3923] close(3) = 0 [pid 3923] memfd_create("syzkaller", 0) = 3 [pid 3923] ftruncate(3, 0./strace-static-x86_64: Process 3924 attached ) = 0 [pid 3922] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3923] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3922] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 3924] <... prctl resumed>) = 0 [pid 3923] <... openat resumed>) = 4 [pid 3922] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 3924] setpgid(0, 0 [pid 3923] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3922, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3924] <... setpgid resumed>) = 0 [pid 3923] <... ioctl resumed>) = 0 [pid 3924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3923] mkdir("./file0", 0777 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3925 [pid 3924] <... openat resumed>) = 3 [pid 3923] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 3924] write(3, "1000", 4 [pid 3923] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3924] <... write resumed>) = 4 [pid 3923] pipe2( [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3925 attached [pid 3924] close(3 [pid 3923] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] close(3 [pid 3617] close(3 [pid 3925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3924] <... close resumed>) = 0 [pid 3923] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3925] <... prctl resumed>) = 0 [pid 3924] memfd_create("syzkaller", 0 [pid 3923] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3925] setpgid(0, 0 [pid 3924] <... memfd_create resumed>) = 3 [pid 3923] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3925] <... setpgid resumed>) = 0 [pid 3924] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3926 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3927 [pid 3925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3925] write(3, "1000", 4 [pid 3924] <... ftruncate resumed>) = 0 [pid 3925] <... write resumed>) = 4 [pid 3924] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3925] close(3 [pid 3924] <... openat resumed>) = 4 [pid 3925] <... close resumed>) = 0 [pid 3924] ioctl(4, LOOP_SET_FD, 3 [pid 3925] memfd_create("syzkaller", 0 [pid 3924] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3927 attached ./strace-static-x86_64: Process 3926 attached [pid 3925] <... memfd_create resumed>) = 3 [pid 3924] mkdir("./file0", 0777 [pid 3927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3925] ftruncate(3, 0 [pid 3924] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3926] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3927] <... prctl resumed>) = 0 [pid 3925] <... ftruncate resumed>) = 0 [pid 3924] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3926] <... prctl resumed>) = 0 [pid 3927] setpgid(0, 0 [pid 3926] setpgid(0, 0 [pid 3925] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3924] pipe2( [pid 3927] <... setpgid resumed>) = 0 [pid 3926] <... setpgid resumed>) = 0 [pid 3925] <... openat resumed>) = 4 [pid 3924] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3925] ioctl(4, LOOP_SET_FD, 3 [pid 3924] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3927] <... openat resumed>) = 3 [pid 3927] write(3, "1000", 4) = 4 [pid 3927] close(3) = 0 [pid 3927] memfd_create("syzkaller", 0) = 3 [pid 3927] ftruncate(3, 0) = 0 [pid 3927] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3927] ioctl(4, LOOP_SET_FD, 3 [pid 3924] <... write resumed>) = 21 [pid 3926] <... openat resumed>) = 3 [pid 3924] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3927] <... ioctl resumed>) = 0 [pid 3926] write(3, "1000", 4 [pid 3925] <... ioctl resumed>) = 0 [pid 3923] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3927] mkdir("./file0", 0777 [pid 3926] <... write resumed>) = 4 [pid 3925] mkdir("./file0", 0777 [pid 3923] exit_group(0 [pid 3616] close(3 [pid 3927] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3926] close(3 [pid 3925] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3923] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3927] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3926] <... close resumed>) = 0 [pid 3925] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3927] pipe2( [pid 3926] memfd_create("syzkaller", 0 [pid 3925] pipe2( [pid 3923] +++ exited with 0 +++ ./strace-static-x86_64: Process 3928 attached [pid 3927] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3926] <... memfd_create resumed>) = 3 [pid 3925] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3924] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3923, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3928 [pid 3928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3927] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3926] ftruncate(3, 0 [pid 3925] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3924] exit_group(0 [pid 3928] <... prctl resumed>) = 0 [pid 3927] <... write resumed>) = 21 [pid 3926] <... ftruncate resumed>) = 0 [pid 3925] <... write resumed>) = 21 [pid 3924] <... exit_group resumed>) = ? [pid 3928] setpgid(0, 0 [pid 3927] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3926] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3925] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3928] <... setpgid resumed>) = 0 [pid 3926] <... openat resumed>) = 4 [pid 3924] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 3928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3926] ioctl(4, LOOP_SET_FD, 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3928] <... openat resumed>) = 3 [pid 3926] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3924, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3928] write(3, "1000", 4 [pid 3926] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3928] <... write resumed>) = 4 [pid 3926] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 [pid 3928] close(3 [pid 3926] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3928] <... close resumed>) = 0 [pid 3926] pipe2( [pid 3928] memfd_create("syzkaller", 0 [pid 3926] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3928] <... memfd_create resumed>) = 3 [pid 3926] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3928] ftruncate(3, 0 [pid 3926] <... write resumed>) = 21 [pid 3928] <... ftruncate resumed>) = 0 [pid 3926] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3928] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3928] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3928] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3928] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3928] pipe2([5, 6], 0) = 0 [pid 3928] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3928] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3929 ./strace-static-x86_64: Process 3929 attached [pid 3927] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3927] exit_group(0 [pid 3619] close(3 [pid 3927] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3927] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3930 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3927, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3929] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3929] <... setpgid resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3930 attached ) = 3 [pid 3930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3929] write(3, "1000", 4 [pid 3928] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3930] <... prctl resumed>) = 0 [pid 3929] <... write resumed>) = 4 [pid 3928] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3930] setpgid(0, 0 [pid 3929] close(3 [pid 3928] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3930] <... setpgid resumed>) = 0 [pid 3929] <... close resumed>) = 0 [pid 3930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3929] memfd_create("syzkaller", 0 [pid 3928] +++ exited with 0 +++ [pid 3930] <... openat resumed>) = 3 [pid 3929] <... memfd_create resumed>) = 3 [pid 3929] ftruncate(3, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3928, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3929] <... ftruncate resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3929] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... restart_syscall resumed>) = 0 [pid 3929] <... openat resumed>) = 4 [pid 3929] ioctl(4, LOOP_SET_FD, 3 [pid 3930] write(3, "1000", 4 [pid 3929] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3930] <... write resumed>) = 4 [pid 3929] mkdir("./file0", 0777 [pid 3616] <... openat resumed>) = 3 [pid 3930] close(3 [pid 3929] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3930] <... close resumed>) = 0 [pid 3929] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3930] memfd_create("syzkaller", 0 [pid 3929] pipe2( [pid 3930] <... memfd_create resumed>) = 3 [pid 3929] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3930] ftruncate(3, 0 [pid 3929] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3930] <... ftruncate resumed>) = 0 [pid 3929] <... write resumed>) = 21 [pid 3930] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3929] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3930] <... openat resumed>) = 4 [pid 3930] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3930] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3930] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 3930] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3930] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3930] pipe2( [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3931 [pid 3930] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3930] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 ./strace-static-x86_64: Process 3931 attached [pid 3930] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3931] setpgid(0, 0) = 0 [pid 3931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3931] write(3, "1000", 4) = 4 [pid 3931] close(3) = 0 [pid 3925] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3925] exit_group(0 [pid 3616] close(3 [pid 3925] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3925] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3932 ./strace-static-x86_64: Process 3932 attached [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3925, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3931] memfd_create("syzkaller", 0) = 3 [pid 3931] ftruncate(3, 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3931] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3615] <... openat resumed>) = 3 [pid 3931] ioctl(4, LOOP_SET_FD, 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3931] <... ioctl resumed>) = 0 [pid 3932] <... prctl resumed>) = 0 [pid 3932] setpgid(0, 0) = 0 [pid 3932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3931] mkdir("./file0", 0777 [pid 3932] <... openat resumed>) = 3 [pid 3931] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3932] write(3, "1000", 4 [pid 3931] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3932] <... write resumed>) = 4 [pid 3931] pipe2( [pid 3932] close(3 [pid 3931] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3926] <... mount resumed>) = -1 EIO (Input/output error) [pid 3932] <... close resumed>) = 0 [pid 3931] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3926] exit_group(0 [pid 3932] memfd_create("syzkaller", 0 [pid 3931] <... write resumed>) = 21 [pid 3926] <... exit_group resumed>) = ? [pid 3932] <... memfd_create resumed>) = 3 [pid 3931] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3932] ftruncate(3, 0) = 0 [pid 3932] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3926] +++ exited with 0 +++ [pid 3932] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3926, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3932] ioctl(4, LOOP_SET_FD, 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3932] <... ioctl resumed>) = 0 [pid 3932] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3930] <... mount resumed>) = -1 EIO (Input/output error) [pid 3932] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3930] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3932] pipe2( [pid 3930] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 3932] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3932] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3930] +++ exited with 0 +++ [pid 3932] <... write resumed>) = 21 [pid 3615] <... close resumed>) = 0 [pid 3932] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3930, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3933 ./strace-static-x86_64: Process 3933 attached [pid 3933] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3933] setpgid(0, 0) = 0 [pid 3929] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3929] exit_group(0 [pid 3618] close(3 [pid 3929] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3929] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3934 ./strace-static-x86_64: Process 3934 attached [pid 3934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3929, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3934] <... prctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3933] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3933] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3933] <... write resumed>) = 4 [pid 3934] setpgid(0, 0 [pid 3933] close(3 [pid 3934] <... setpgid resumed>) = 0 [pid 3933] <... close resumed>) = 0 [pid 3934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3933] memfd_create("syzkaller", 0 [pid 3934] <... openat resumed>) = 3 [pid 3933] <... memfd_create resumed>) = 3 [pid 3931] <... mount resumed>) = -1 EIO (Input/output error) [pid 3934] write(3, "1000", 4 [pid 3933] ftruncate(3, 0 [pid 3934] <... write resumed>) = 4 [pid 3931] exit_group(0 [pid 3934] close(3 [pid 3933] <... ftruncate resumed>) = 0 [pid 3931] <... exit_group resumed>) = ? [pid 3934] <... close resumed>) = 0 [pid 3933] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] <... ioctl resumed>) = 0 [pid 3934] memfd_create("syzkaller", 0 [pid 3933] <... openat resumed>) = 4 [pid 3931] +++ exited with 0 +++ [pid 3619] close(3 [pid 3934] <... memfd_create resumed>) = 3 [pid 3933] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... close resumed>) = 0 [pid 3934] ftruncate(3, 0 [pid 3933] <... ioctl resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3931, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3934] <... ftruncate resumed>) = 0 [pid 3933] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3934] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3933] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3935 [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3935 attached [pid 3934] <... openat resumed>) = 4 [pid 3933] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3935] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3934] ioctl(4, LOOP_SET_FD, 3 [pid 3933] pipe2( [pid 3620] close(3 [pid 3935] <... prctl resumed>) = 0 [pid 3934] <... ioctl resumed>) = 0 [pid 3933] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 3935] setpgid(0, 0 [pid 3934] mkdir("./file0", 0777 [pid 3933] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3935] <... setpgid resumed>) = 0 [pid 3934] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3933] <... write resumed>) = 21 [pid 3935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3934] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3933] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3936 [pid 3935] <... openat resumed>) = 3 [pid 3934] pipe2( [pid 3935] write(3, "1000", 4 [pid 3934] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3935] <... write resumed>) = 4 [pid 3934] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3935] close(3 [pid 3934] <... write resumed>) = 21 [pid 3935] <... close resumed>) = 0 [pid 3934] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3935] memfd_create("syzkaller", 0 [pid 3932] <... mount resumed>) = -1 EIO (Input/output error) [pid 3935] <... memfd_create resumed>) = 3 [pid 3932] exit_group(0) = ? [pid 3932] +++ exited with 0 +++ ./strace-static-x86_64: Process 3936 attached [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3932, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3936] <... prctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3936] setpgid(0, 0) = 0 [pid 3936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3936] <... openat resumed>) = 3 [pid 3935] ftruncate(3, 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3936] write(3, "1000", 4 [pid 3935] <... ftruncate resumed>) = 0 [pid 3617] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3936] <... write resumed>) = 4 [pid 3935] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 3936] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3936] <... close resumed>) = 0 [pid 3936] memfd_create("syzkaller", 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3937 [pid 3936] <... memfd_create resumed>) = 3 [pid 3936] ftruncate(3, 0) = 0 [pid 3935] <... openat resumed>) = 4 [pid 3936] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3935] ioctl(4, LOOP_SET_FD, 3 [pid 3936] <... openat resumed>) = 4 [pid 3935] <... ioctl resumed>) = 0 [pid 3936] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3936] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3936] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3936] pipe2([5, 6], 0) = 0 [pid 3936] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 3937 attached ) = 21 [pid 3937] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3936] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3937] <... prctl resumed>) = 0 [pid 3935] mkdir("./file0", 0777 [pid 3933] <... mount resumed>) = -1 EIO (Input/output error) [pid 3937] setpgid(0, 0 [pid 3935] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3933] exit_group(0 [pid 3937] <... setpgid resumed>) = 0 [pid 3935] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3933] <... exit_group resumed>) = ? [pid 3937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3935] pipe2( [pid 3937] <... openat resumed>) = 3 [pid 3935] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3937] write(3, "1000", 4 [pid 3935] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3933] +++ exited with 0 +++ [pid 3937] <... write resumed>) = 4 [pid 3935] <... write resumed>) = 21 [pid 3937] close(3 [pid 3935] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3934] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3937] <... close resumed>) = 0 [pid 3934] exit_group(0 [pid 3616] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3933, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3937] memfd_create("syzkaller", 0 [pid 3934] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3937] <... memfd_create resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3937] ftruncate(3, 0 [pid 3934] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 3937] <... ftruncate resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3934, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3938 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3937] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3938 attached ) = 4 [pid 3937] ioctl(4, LOOP_SET_FD, 3 [pid 3938] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3937] <... ioctl resumed>) = 0 [pid 3938] <... prctl resumed>) = 0 [pid 3937] mkdir("./file0", 0777 [pid 3938] setpgid(0, 0 [pid 3937] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3936] <... mount resumed>) = -1 EIO (Input/output error) [pid 3937] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3936] exit_group(0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3937] pipe2( [pid 3936] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 3937] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3936] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3937] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3937] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3938] <... setpgid resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3936, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3938] write(3, "1000", 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3938] <... write resumed>) = 4 [pid 3938] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3938] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3938] memfd_create("syzkaller", 0) = 3 [pid 3938] ftruncate(3, 0) = 0 [pid 3938] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3938] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3938] mkdir("./file0", 0777 [pid 3935] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3938] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3935] exit_group(0 [pid 3618] close(3 [pid 3615] close(3 [pid 3938] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3935] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3938] pipe2( [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3938] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3935] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3938] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3935, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3939 [pid 3938] <... write resumed>) = 21 ./strace-static-x86_64: Process 3939 attached [pid 3938] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3940 [pid 3939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3619] <... openat resumed>) = 3 [pid 3939] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3940 attached [pid 3939] setpgid(0, 0 [pid 3937] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3937] exit_group(0) = ? [pid 3937] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3937, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3939] <... setpgid resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3941 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3940] <... prctl resumed>) = 0 [pid 3939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3940] setpgid(0, 0 [pid 3939] <... openat resumed>) = 3 [pid 3940] <... setpgid resumed>) = 0 [pid 3939] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3941 attached [pid 3940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3939] close(3 [pid 3941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3940] <... openat resumed>) = 3 [pid 3939] <... close resumed>) = 0 [pid 3941] <... prctl resumed>) = 0 [pid 3940] write(3, "1000", 4 [pid 3939] memfd_create("syzkaller", 0 [pid 3941] setpgid(0, 0 [pid 3940] <... write resumed>) = 4 [pid 3939] <... memfd_create resumed>) = 3 [pid 3941] <... setpgid resumed>) = 0 [pid 3940] close(3 [pid 3939] ftruncate(3, 0 [pid 3941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3940] <... close resumed>) = 0 [pid 3939] <... ftruncate resumed>) = 0 [pid 3941] <... openat resumed>) = 3 [pid 3940] memfd_create("syzkaller", 0 [pid 3939] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3941] write(3, "1000", 4) = 4 [pid 3941] close(3) = 0 [pid 3941] memfd_create("syzkaller", 0) = 3 [pid 3941] ftruncate(3, 0) = 0 [pid 3941] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3941] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3941] mkdir("./file0", 0777 [pid 3940] <... memfd_create resumed>) = 3 [pid 3939] <... openat resumed>) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 3941] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3940] ftruncate(3, 0 [pid 3939] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3 [pid 3941] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3940] <... ftruncate resumed>) = 0 [pid 3939] <... ioctl resumed>) = 0 [pid 3938] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... close resumed>) = 0 [pid 3941] pipe2( [pid 3940] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3939] mkdir("./file0", 0777 [pid 3938] exit_group(0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3941] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3940] <... openat resumed>) = 4 [pid 3939] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3938] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3942 attached [pid 3941] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3940] ioctl(4, LOOP_SET_FD, 3 [pid 3939] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3938] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3942 [pid 3942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3941] <... write resumed>) = 21 [pid 3940] <... ioctl resumed>) = 0 [pid 3939] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3938, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3942] <... prctl resumed>) = 0 [pid 3941] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3940] mkdir("./file0", 0777 [pid 3939] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3942] setpgid(0, 0 [pid 3940] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3939] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3942] <... setpgid resumed>) = 0 [pid 3940] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3939] <... write resumed>) = 21 [pid 3617] close(3 [pid 3942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3940] pipe2( [pid 3939] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... close resumed>) = 0 [pid 3942] <... openat resumed>) = 3 [pid 3940] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3942] write(3, "1000", 4 [pid 3940] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3943 attached [pid 3942] <... write resumed>) = 4 [pid 3940] <... write resumed>) = 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3943 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3942] close(3 [pid 3940] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3942] <... close resumed>) = 0 [pid 3943] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3942] memfd_create("syzkaller", 0 [pid 3941] <... mount resumed>) = -1 EIO (Input/output error) [pid 3942] <... memfd_create resumed>) = 3 [pid 3941] exit_group(0) = ? [pid 3941] +++ exited with 0 +++ [pid 3942] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3941, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3943] <... prctl resumed>) = 0 [pid 3942] <... ftruncate resumed>) = 0 [pid 3943] setpgid(0, 0 [pid 3942] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3943] <... setpgid resumed>) = 0 [pid 3942] <... openat resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3942] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... openat resumed>) = 3 [pid 3943] <... openat resumed>) = 3 [pid 3942] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3943] write(3, "1000", 4 [pid 3942] mkdir("./file0", 0777 [pid 3616] <... ioctl resumed>) = 0 [pid 3943] <... write resumed>) = 4 [pid 3942] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 3943] close(3 [pid 3942] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3944 ./strace-static-x86_64: Process 3944 attached [pid 3944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3943] <... close resumed>) = 0 [pid 3942] pipe2( [pid 3943] memfd_create("syzkaller", 0 [pid 3942] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3939] <... mount resumed>) = -1 EIO (Input/output error) [pid 3943] <... memfd_create resumed>) = 3 [pid 3942] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3939] exit_group(0 [pid 3943] ftruncate(3, 0 [pid 3942] <... write resumed>) = 21 [pid 3939] <... exit_group resumed>) = ? [pid 3943] <... ftruncate resumed>) = 0 [pid 3942] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3943] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3944] <... prctl resumed>) = 0 [pid 3943] ioctl(4, LOOP_SET_FD, 3 [pid 3944] setpgid(0, 0 [pid 3943] <... ioctl resumed>) = 0 [pid 3939] +++ exited with 0 +++ [pid 3944] <... setpgid resumed>) = 0 [pid 3943] mkdir("./file0", 0777 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3939, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3943] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3944] <... openat resumed>) = 3 [pid 3943] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3944] write(3, "1000", 4 [pid 3943] pipe2( [pid 3944] <... write resumed>) = 4 [pid 3943] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3944] close(3 [pid 3943] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3944] <... close resumed>) = 0 [pid 3943] <... write resumed>) = 21 [pid 3940] <... mount resumed>) = -1 EIO (Input/output error) [pid 3944] memfd_create("syzkaller", 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3944] <... memfd_create resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 3944] ftruncate(3, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3944] <... ftruncate resumed>) = 0 [pid 3943] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3944] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] close(3 [pid 3944] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3944] ioctl(4, LOOP_SET_FD, 3 [pid 3940] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3944] <... ioctl resumed>) = 0 [pid 3944] mkdir("./file0", 0777 [pid 3940] <... exit_group resumed>) = ? [pid 3944] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3945 [pid 3944] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3944] pipe2([5, 6], 0) = 0 [pid 3940] +++ exited with 0 +++ [pid 3944] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3940, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3945 attached [pid 3944] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... restart_syscall resumed>) = 0 [pid 3945] <... prctl resumed>) = 0 [pid 3945] setpgid(0, 0) = 0 [pid 3945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3945] <... openat resumed>) = 3 [pid 3942] <... mount resumed>) = -1 EIO (Input/output error) [pid 3945] write(3, "1000", 4 [pid 3942] exit_group(0 [pid 3615] <... openat resumed>) = 3 [pid 3945] <... write resumed>) = 4 [pid 3942] <... exit_group resumed>) = ? [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3945] close(3) = 0 [pid 3942] +++ exited with 0 +++ [pid 3945] memfd_create("syzkaller", 0) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3942, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3945] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3945] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3945] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3945] <... openat resumed>) = 4 [pid 3945] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3945] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3945] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3945] pipe2( [pid 3944] <... mount resumed>) = -1 EIO (Input/output error) [pid 3945] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3944] exit_group(0 [pid 3945] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3944] <... exit_group resumed>) = ? [pid 3945] <... write resumed>) = 21 [pid 3944] +++ exited with 0 +++ [pid 3945] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3944, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3946 ./strace-static-x86_64: Process 3946 attached [pid 3946] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3946] setpgid(0, 0) = 0 [pid 3946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3946] write(3, "1000", 4) = 4 [pid 3946] close(3) = 0 [pid 3946] memfd_create("syzkaller", 0) = 3 [pid 3946] ftruncate(3, 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3615] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3947 [pid 3946] <... ftruncate resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3948 [pid 3946] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3946] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3948 attached ) = 0 [pid 3943] <... mount resumed>) = -1 EIO (Input/output error) [pid 3946] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3943] exit_group(0 [pid 3946] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3943] <... exit_group resumed>) = ? [pid 3946] pipe2([5, 6], 0) = 0 [pid 3946] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3946] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3947 attached [pid 3948] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3943] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3948] <... prctl resumed>) = 0 [pid 3947] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] close(3 [pid 3948] setpgid(0, 0 [pid 3947] <... prctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3943, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... close resumed>) = 0 [pid 3948] <... setpgid resumed>) = 0 [pid 3947] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3947] <... setpgid resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3948] <... openat resumed>) = 3 [pid 3947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3949 [pid 3948] write(3, "1000", 4 [pid 3947] <... openat resumed>) = 3 [pid 3948] <... write resumed>) = 4 [pid 3947] write(3, "1000", 4 [pid 3945] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3949 attached [pid 3948] close(3 [pid 3947] <... write resumed>) = 4 [pid 3945] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3947] close(3 [pid 3945] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3948] <... close resumed>) = 0 [pid 3947] <... close resumed>) = 0 [pid 3945] +++ exited with 0 +++ [pid 3949] <... prctl resumed>) = 0 [pid 3948] memfd_create("syzkaller", 0 [pid 3947] memfd_create("syzkaller", 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3945, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3947] <... memfd_create resumed>) = 3 [pid 3947] ftruncate(3, 0) = 0 [pid 3949] setpgid(0, 0 [pid 3948] <... memfd_create resumed>) = 3 [pid 3947] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3949] <... setpgid resumed>) = 0 [pid 3948] ftruncate(3, 0 [pid 3947] <... openat resumed>) = 4 [pid 3949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3947] ioctl(4, LOOP_SET_FD, 3 [pid 3949] <... openat resumed>) = 3 [pid 3948] <... ftruncate resumed>) = 0 [pid 3947] <... ioctl resumed>) = 0 [pid 3949] write(3, "1000", 4 [pid 3948] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3947] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3949] <... write resumed>) = 4 [pid 3947] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3948] <... openat resumed>) = 4 [pid 3949] close(3 [pid 3948] ioctl(4, LOOP_SET_FD, 3 [pid 3947] pipe2( [pid 3949] <... close resumed>) = 0 [pid 3947] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3948] <... ioctl resumed>) = 0 [pid 3947] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3949] memfd_create("syzkaller", 0 [pid 3948] mkdir("./file0", 0777 [pid 3947] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 3949] <... memfd_create resumed>) = 3 [pid 3947] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3948] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3949] ftruncate(3, 0 [pid 3948] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3946] <... mount resumed>) = -1 EIO (Input/output error) [pid 3949] <... ftruncate resumed>) = 0 [pid 3948] pipe2( [pid 3946] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3946] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 3949] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3948] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3946] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3946, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3949] <... openat resumed>) = 4 [pid 3948] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3949] ioctl(4, LOOP_SET_FD, 3 [pid 3948] <... write resumed>) = 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3950 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3949] <... ioctl resumed>) = 0 [pid 3948] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... openat resumed>) = 3 [pid 3949] mkdir("./file0", 0777 [pid 3947] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3947] exit_group(0) = ? [pid 3949] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3949] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3950 attached [pid 3949] pipe2( [pid 3947] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3947, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3949] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3950] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3950] <... prctl resumed>) = 0 [pid 3949] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3950] setpgid(0, 0 [pid 3949] <... write resumed>) = 21 [pid 3620] close(3 [pid 3950] <... setpgid resumed>) = 0 [pid 3949] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... close resumed>) = 0 [pid 3950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3950] <... openat resumed>) = 3 [pid 3950] write(3, "1000", 4./strace-static-x86_64: Process 3951 attached ) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3951 [pid 3948] <... mount resumed>) = -1 EIO (Input/output error) [pid 3950] close(3) = 0 [pid 3948] exit_group(0) = ? [pid 3950] memfd_create("syzkaller", 0) = 3 [pid 3950] ftruncate(3, 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3950] <... ftruncate resumed>) = 0 [pid 3950] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3948] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3950] <... openat resumed>) = 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3951] <... prctl resumed>) = 0 [pid 3950] ioctl(4, LOOP_SET_FD, 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3948, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3951] setpgid(0, 0 [pid 3950] <... ioctl resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3952 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3951] <... setpgid resumed>) = 0 [pid 3950] mkdir("./file0", 0777 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3950] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3951] <... openat resumed>) = 3 [pid 3950] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3952 attached [pid 3951] write(3, "1000", 4 [pid 3950] pipe2( [pid 3952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3951] <... write resumed>) = 4 [pid 3950] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3952] <... prctl resumed>) = 0 [pid 3951] close(3 [pid 3950] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 3952] setpgid(0, 0 [pid 3951] <... close resumed>) = 0 [pid 3950] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3952] <... setpgid resumed>) = 0 [pid 3951] memfd_create("syzkaller", 0 [pid 3950] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3951] <... memfd_create resumed>) = 3 [pid 3952] <... openat resumed>) = 3 [pid 3951] ftruncate(3, 0 [pid 3952] write(3, "1000", 4 [pid 3951] <... ftruncate resumed>) = 0 [pid 3952] <... write resumed>) = 4 [pid 3951] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3952] close(3 [pid 3951] <... openat resumed>) = 4 [pid 3952] <... close resumed>) = 0 [pid 3951] ioctl(4, LOOP_SET_FD, 3 [pid 3952] memfd_create("syzkaller", 0 [pid 3951] <... ioctl resumed>) = 0 [pid 3952] <... memfd_create resumed>) = 3 [pid 3951] mkdir("./file0", 0777 [pid 3952] ftruncate(3, 0 [pid 3951] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3952] <... ftruncate resumed>) = 0 [pid 3951] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3952] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3951] pipe2( [pid 3952] <... openat resumed>) = 4 [pid 3951] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3952] ioctl(4, LOOP_SET_FD, 3 [pid 3951] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3952] <... ioctl resumed>) = 0 [pid 3951] <... write resumed>) = 21 [pid 3619] <... ioctl resumed>) = 0 [pid 3952] mkdir("./file0", 0777 [pid 3951] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] close(3 [pid 3952] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... close resumed>) = 0 [pid 3952] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3952] pipe2([5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3953 [pid 3952] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3949] <... mount resumed>) = -1 EIO (Input/output error) [pid 3952] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3953 attached [pid 3953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3953] setpgid(0, 0) = 0 [pid 3953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3949] exit_group(0 [pid 3953] <... openat resumed>) = 3 [pid 3949] <... exit_group resumed>) = ? [pid 3953] write(3, "1000", 4) = 4 [pid 3953] close(3) = 0 [pid 3953] memfd_create("syzkaller", 0 [pid 3949] +++ exited with 0 +++ [pid 3953] <... memfd_create resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3949, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3953] ftruncate(3, 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3953] <... ftruncate resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3953] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3951] <... mount resumed>) = -1 EIO (Input/output error) [pid 3953] <... openat resumed>) = 4 [pid 3951] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3953] ioctl(4, LOOP_SET_FD, 3 [pid 3951] <... exit_group resumed>) = ? [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] close(3 [pid 3953] <... ioctl resumed>) = 0 [pid 3951] +++ exited with 0 +++ [pid 3616] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3953] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3951, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3953] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3953] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3953] pipe2([5, 6], 0) = 0 [pid 3953] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3954 [pid 3953] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3953] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3950] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3954 attached [pid 3954] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3954] setpgid(0, 0) = 0 [pid 3954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3954] write(3, "1000", 4) = 4 [pid 3954] close(3) = 0 [pid 3954] memfd_create("syzkaller", 0 [pid 3950] exit_group(0 [pid 3954] <... memfd_create resumed>) = 3 [pid 3950] <... exit_group resumed>) = ? [pid 3954] ftruncate(3, 0) = 0 [pid 3954] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3950] +++ exited with 0 +++ [pid 3954] <... openat resumed>) = 4 [pid 3952] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3950, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3954] ioctl(4, LOOP_SET_FD, 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3954] <... ioctl resumed>) = 0 [pid 3952] exit_group(0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3954] mkdir("./file0", 0777 [pid 3953] <... mount resumed>) = -1 EIO (Input/output error) [pid 3952] <... exit_group resumed>) = ? [pid 3954] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3954] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3953] exit_group(0 [pid 3952] +++ exited with 0 +++ [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3954] pipe2( [pid 3953] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3616] close(3 [pid 3954] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3952, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] <... close resumed>) = 0 [pid 3954] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3953] +++ exited with 0 +++ [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3955 attached [pid 3954] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 3954] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3953, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3955 [pid 3955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3955] <... prctl resumed>) = 0 [pid 3620] close(3 [pid 3619] <... openat resumed>) = 3 [pid 3955] setpgid(0, 0 [pid 3620] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3955] <... setpgid resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3956 [pid 3955] write(3, "1000", 4) = 4 [pid 3955] close(3) = 0 [pid 3955] memfd_create("syzkaller", 0) = 3 [pid 3955] ftruncate(3, 0) = 0 [pid 3955] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 ./strace-static-x86_64: Process 3956 attached [pid 3955] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3956] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3955] mkdir("./file0", 0777 [pid 3617] <... ioctl resumed>) = 0 [pid 3956] <... prctl resumed>) = 0 [pid 3955] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] close(3 [pid 3956] setpgid(0, 0 [pid 3955] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... close resumed>) = 0 [pid 3956] <... setpgid resumed>) = 0 [pid 3955] pipe2( [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3955] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3957 [pid 3956] <... openat resumed>) = 3 [pid 3955] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3956] write(3, "1000", 4 [pid 3955] <... write resumed>) = 21 [pid 3954] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 3957 attached [pid 3956] <... write resumed>) = 4 [pid 3955] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3954] exit_group(0 [pid 3956] close(3 [pid 3954] <... exit_group resumed>) = ? [pid 3954] +++ exited with 0 +++ [pid 3956] <... close resumed>) = 0 [pid 3956] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3954, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3956] <... memfd_create resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3956] ftruncate(3, 0) = 0 [pid 3956] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3956] <... openat resumed>) = 4 [pid 3956] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... openat resumed>) = 3 [pid 3956] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3956] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3956] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3956] pipe2([5, 6], 0) = 0 [pid 3957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3956] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3957] <... prctl resumed>) = 0 [pid 3956] <... write resumed>) = 21 [pid 3957] setpgid(0, 0 [pid 3956] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3957] <... setpgid resumed>) = 0 [pid 3957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3957] write(3, "1000", 4) = 4 [pid 3957] close(3) = 0 [pid 3957] memfd_create("syzkaller", 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3957] <... memfd_create resumed>) = 3 [pid 3957] ftruncate(3, 0) = 0 [pid 3957] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3957] <... openat resumed>) = 4 [pid 3957] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3957] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3957] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3957] pipe2([5, 6], 0) = 0 [pid 3957] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3957] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3958 ./strace-static-x86_64: Process 3958 attached [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3959 [pid 3615] <... ioctl resumed>) = 0 [pid 3958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3955] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] close(3 [pid 3955] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 3958] <... prctl resumed>) = 0 [pid 3955] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3959 attached [pid 3958] setpgid(0, 0 [pid 3959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3960 [pid 3959] <... prctl resumed>) = 0 [pid 3955] +++ exited with 0 +++ [pid 3959] setpgid(0, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3955, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3959] <... setpgid resumed>) = 0 [pid 3959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3958] <... setpgid resumed>) = 0 [pid 3959] <... openat resumed>) = 3 [pid 3959] write(3, "1000", 4 [pid 3958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3959] <... write resumed>) = 4 [pid 3959] close(3) = 0 [pid 3958] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3959] memfd_create("syzkaller", 0 [pid 3958] write(3, "1000", 4 [pid 3616] <... openat resumed>) = 3 [pid 3959] <... memfd_create resumed>) = 3 [pid 3958] <... write resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3959] ftruncate(3, 0 [pid 3958] close(3./strace-static-x86_64: Process 3960 attached [pid 3959] <... ftruncate resumed>) = 0 [pid 3958] <... close resumed>) = 0 [pid 3960] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3959] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3960] <... prctl resumed>) = 0 [pid 3959] <... openat resumed>) = 4 [pid 3958] memfd_create("syzkaller", 0 [pid 3960] setpgid(0, 0 [pid 3959] ioctl(4, LOOP_SET_FD, 3 [pid 3957] <... mount resumed>) = -1 EIO (Input/output error) [pid 3960] <... setpgid resumed>) = 0 [pid 3959] <... ioctl resumed>) = 0 [pid 3957] exit_group(0 [pid 3960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3959] mkdir("./file0", 0777 [pid 3958] <... memfd_create resumed>) = 3 [pid 3957] <... exit_group resumed>) = ? [pid 3960] <... openat resumed>) = 3 [pid 3959] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3958] ftruncate(3, 0 [pid 3957] +++ exited with 0 +++ [pid 3960] write(3, "1000", 4 [pid 3959] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3960] <... write resumed>) = 4 [pid 3959] pipe2( [pid 3960] close(3 [pid 3959] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3957, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3960] <... close resumed>) = 0 [pid 3959] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3958] <... ftruncate resumed>) = 0 [pid 3960] memfd_create("syzkaller", 0 [pid 3959] <... write resumed>) = 21 [pid 3958] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3960] <... memfd_create resumed>) = 3 [pid 3959] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3960] ftruncate(3, 0 [pid 3958] <... openat resumed>) = 4 [pid 3960] <... ftruncate resumed>) = 0 [pid 3958] ioctl(4, LOOP_SET_FD, 3 [pid 3960] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3958] <... ioctl resumed>) = 0 [pid 3960] ioctl(4, LOOP_SET_FD, 3 [pid 3958] mkdir("./file0", 0777 [pid 3960] <... ioctl resumed>) = 0 [pid 3958] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3960] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3958] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3960] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3960] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3960] pipe2( [pid 3958] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 3960] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3958] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3960] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3958] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3960] <... write resumed>) = 21 [pid 3958] <... write resumed>) = 21 [pid 3617] <... ioctl resumed>) = 0 [pid 3960] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3958] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3961 ./strace-static-x86_64: Process 3961 attached [pid 3961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3956] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3956] exit_group(0 [pid 3616] close(3 [pid 3956] <... exit_group resumed>) = ? [pid 3956] +++ exited with 0 +++ [pid 3616] <... close resumed>) = 0 [pid 3961] <... prctl resumed>) = 0 [pid 3961] setpgid(0, 0) = 0 [pid 3961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3956, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3961] <... openat resumed>) = 3 [pid 3961] write(3, "1000", 4) = 4 [pid 3961] close(3) = 0 [pid 3961] memfd_create("syzkaller", 0) = 3 [pid 3961] ftruncate(3, 0) = 0 [pid 3961] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3961] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3961] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3961] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3961] pipe2([5, 6], 0) = 0 [pid 3961] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3961] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3960] <... mount resumed>) = -1 EIO (Input/output error) [pid 3960] exit_group(0) = ? [pid 3960] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3962 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3960, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3962 attached [pid 3962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3962] setpgid(0, 0) = 0 [pid 3962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3958] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3962] <... openat resumed>) = 3 [pid 3958] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3963 [pid 3962] write(3, "1000", 4 [pid 3958] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3963 attached [pid 3615] <... ioctl resumed>) = 0 [pid 3963] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3963] setpgid(0, 0) = 0 [pid 3958] +++ exited with 0 +++ [pid 3962] <... write resumed>) = 4 [pid 3962] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3958, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3 [pid 3962] <... close resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3962] memfd_create("syzkaller", 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3963] <... openat resumed>) = 3 [pid 3963] write(3, "1000", 4) = 4 [pid 3962] <... memfd_create resumed>) = 3 [pid 3963] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3962] ftruncate(3, 0 [pid 3619] <... openat resumed>) = 3 [pid 3963] <... close resumed>) = 0 [pid 3962] <... ftruncate resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3964 [pid 3962] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3962] ioctl(4, LOOP_SET_FD, 3 [pid 3963] memfd_create("syzkaller", 0) = 3 [pid 3962] <... ioctl resumed>) = 0 [pid 3962] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3963] ftruncate(3, 0 [pid 3962] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3963] <... ftruncate resumed>) = 0 [pid 3962] pipe2( [pid 3963] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3962] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3963] ioctl(4, LOOP_SET_FD, 3 [pid 3962] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 3964 attached [pid 3963] <... ioctl resumed>) = 0 [pid 3962] <... write resumed>) = 21 [pid 3964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3963] mkdir("./file0", 0777 [pid 3962] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3964] <... prctl resumed>) = 0 [pid 3963] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3964] setpgid(0, 0 [pid 3963] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3964] <... setpgid resumed>) = 0 [pid 3963] pipe2( [pid 3964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3963] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3964] <... openat resumed>) = 3 [pid 3963] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3964] write(3, "1000", 4 [pid 3963] <... write resumed>) = 21 [pid 3964] <... write resumed>) = 4 [pid 3963] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3964] close(3) = 0 [pid 3964] memfd_create("syzkaller", 0) = 3 [pid 3959] <... mount resumed>) = -1 EIO (Input/output error) [pid 3964] ftruncate(3, 0 [pid 3959] exit_group(0 [pid 3964] <... ftruncate resumed>) = 0 [pid 3959] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3964] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3959] +++ exited with 0 +++ [pid 3964] <... openat resumed>) = 4 [pid 3964] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3964] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3964] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3964] pipe2([5, 6], 0) = 0 [pid 3964] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3964] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] close(3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3959, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3965 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3965 attached [pid 3961] <... mount resumed>) = -1 EIO (Input/output error) [pid 3961] exit_group(0) = ? [pid 3961] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3961, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3965] setpgid(0, 0) = 0 [pid 3965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3962] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3966 [pid 3965] <... openat resumed>) = 3 [pid 3965] write(3, "1000", 4) = 4 [pid 3962] exit_group(0./strace-static-x86_64: Process 3966 attached [pid 3966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3965] close(3 [pid 3962] <... exit_group resumed>) = ? [pid 3966] <... prctl resumed>) = 0 [pid 3966] setpgid(0, 0) = 0 [pid 3966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3966] write(3, "1000", 4) = 4 [pid 3966] close(3) = 0 [pid 3966] memfd_create("syzkaller", 0 [pid 3962] +++ exited with 0 +++ [pid 3966] <... memfd_create resumed>) = 3 [pid 3965] <... close resumed>) = 0 [pid 3966] ftruncate(3, 0) = 0 [pid 3965] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3962, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3966] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3966] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3966] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3966] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3966] pipe2([5, 6], 0) = 0 [pid 3966] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3966] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3965] <... memfd_create resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3965] ftruncate(3, 0 [pid 3616] <... openat resumed>) = 3 [pid 3965] <... ftruncate resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3965] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3965] ioctl(4, LOOP_SET_FD, 3 [pid 3963] <... mount resumed>) = -1 EIO (Input/output error) [pid 3963] exit_group(0) = ? [pid 3963] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3963, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3964] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3964] exit_group(0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3964] <... exit_group resumed>) = ? [pid 3964] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 3965] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3617] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3964, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3965] mkdir("./file0", 0777 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 3965] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3965] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3965] pipe2( [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3967 [pid 3965] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3965] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3965] <... write resumed>) = 21 [pid 3615] <... openat resumed>) = 3 [pid 3965] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3967 attached [pid 3967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3967] setpgid(0, 0) = 0 [pid 3967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3967] write(3, "1000", 4) = 4 [pid 3967] close(3) = 0 [pid 3967] memfd_create("syzkaller", 0) = 3 [pid 3967] ftruncate(3, 0) = 0 [pid 3967] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3967] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3967] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3967] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3967] pipe2([5, 6], 0) = 0 [pid 3967] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3967] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3968 [pid 3966] <... mount resumed>) = -1 EIO (Input/output error) [pid 3966] exit_group(0) = ? [pid 3966] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3966, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3969 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3970 [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3970 attached ./strace-static-x86_64: Process 3969 attached ./strace-static-x86_64: Process 3968 attached [pid 3968] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3970] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3969] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3968] <... prctl resumed>) = 0 [pid 3970] <... prctl resumed>) = 0 [pid 3969] <... prctl resumed>) = 0 [pid 3968] setpgid(0, 0) = 0 [pid 3970] setpgid(0, 0 [pid 3969] setpgid(0, 0 [pid 3968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3970] <... setpgid resumed>) = 0 [pid 3969] <... setpgid resumed>) = 0 [pid 3968] <... openat resumed>) = 3 [pid 3968] write(3, "1000", 4 [pid 3970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3968] <... write resumed>) = 4 [pid 3970] <... openat resumed>) = 3 [pid 3969] <... openat resumed>) = 3 [pid 3970] write(3, "1000", 4 [pid 3969] write(3, "1000", 4 [pid 3970] <... write resumed>) = 4 [pid 3969] <... write resumed>) = 4 [pid 3970] close(3 [pid 3969] close(3 [pid 3970] <... close resumed>) = 0 [pid 3969] <... close resumed>) = 0 [pid 3970] memfd_create("syzkaller", 0 [pid 3969] memfd_create("syzkaller", 0 [pid 3970] <... memfd_create resumed>) = 3 [pid 3969] <... memfd_create resumed>) = 3 [pid 3970] ftruncate(3, 0 [pid 3969] ftruncate(3, 0 [pid 3970] <... ftruncate resumed>) = 0 [pid 3969] <... ftruncate resumed>) = 0 [pid 3970] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3969] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3970] <... openat resumed>) = 4 [pid 3969] <... openat resumed>) = 4 [pid 3967] <... mount resumed>) = -1 EIO (Input/output error) [pid 3968] close(3 [pid 3970] ioctl(4, LOOP_SET_FD, 3 [pid 3969] ioctl(4, LOOP_SET_FD, 3 [pid 3967] exit_group(0 [pid 3970] <... ioctl resumed>) = 0 [pid 3969] <... ioctl resumed>) = 0 [pid 3968] <... close resumed>) = 0 [pid 3967] <... exit_group resumed>) = ? [pid 3970] mkdir("./file0", 0777 [pid 3969] mkdir("./file0", 0777 [pid 3968] memfd_create("syzkaller", 0 [pid 3970] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3969] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3968] <... memfd_create resumed>) = 3 [pid 3967] +++ exited with 0 +++ [pid 3965] <... mount resumed>) = -1 EIO (Input/output error) [pid 3970] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3969] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3968] ftruncate(3, 0 [pid 3965] exit_group(0 [pid 3970] pipe2( [pid 3969] pipe2( [pid 3968] <... ftruncate resumed>) = 0 [pid 3965] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3967, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3970] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3969] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3968] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3970] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3969] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3968] <... openat resumed>) = 4 [pid 3965] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3970] <... write resumed>) = 21 [pid 3969] <... write resumed>) = 21 [pid 3968] ioctl(4, LOOP_SET_FD, 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3970] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3969] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3968] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3965, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3971 attached [pid 3968] mkdir("./file0", 0777 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3971 [pid 3617] <... ioctl resumed>) = 0 [pid 3971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3968] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... openat resumed>) = 3 [pid 3617] close(3 [pid 3971] <... prctl resumed>) = 0 [pid 3968] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 3971] setpgid(0, 0 [pid 3968] pipe2( [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3971] <... setpgid resumed>) = 0 [pid 3968] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3968] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3972 [pid 3971] <... openat resumed>) = 3 [pid 3968] <... write resumed>) = 21 ./strace-static-x86_64: Process 3972 attached [pid 3971] write(3, "1000", 4 [pid 3968] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3971] <... write resumed>) = 4 [pid 3970] <... mount resumed>) = -1 EIO (Input/output error) [pid 3972] <... prctl resumed>) = 0 [pid 3971] close(3 [pid 3970] exit_group(0 [pid 3972] setpgid(0, 0 [pid 3971] <... close resumed>) = 0 [pid 3970] <... exit_group resumed>) = ? [pid 3972] <... setpgid resumed>) = 0 [pid 3971] memfd_create("syzkaller", 0 [pid 3970] +++ exited with 0 +++ [pid 3972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3971] <... memfd_create resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3970, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3972] <... openat resumed>) = 3 [pid 3971] ftruncate(3, 0 [pid 3619] close(3 [pid 3972] write(3, "1000", 4 [pid 3971] <... ftruncate resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3972] <... write resumed>) = 4 [pid 3971] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3972] close(3 [pid 3971] <... openat resumed>) = 4 [pid 3972] <... close resumed>) = 0 [pid 3971] ioctl(4, LOOP_SET_FD, 3 [pid 3969] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3973 [pid 3969] exit_group(0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3972] memfd_create("syzkaller", 0 [pid 3971] <... ioctl resumed>) = 0 [pid 3969] <... exit_group resumed>) = ? [pid 3615] <... openat resumed>) = 3 [pid 3972] <... memfd_create resumed>) = 3 [pid 3971] mkdir("./file0", 0777 [pid 3969] +++ exited with 0 +++ [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3972] ftruncate(3, 0 [pid 3971] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3972] <... ftruncate resumed>) = 0 [pid 3971] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3969, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3972] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3971] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3972] <... openat resumed>) = 4 [pid 3971] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3972] ioctl(4, LOOP_SET_FD, 3 [pid 3971] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3973 attached [pid 3972] <... ioctl resumed>) = 0 [pid 3971] <... write resumed>) = 21 [pid 3973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3972] mkdir("./file0", 0777 [pid 3971] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3972] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3973] <... prctl resumed>) = 0 [pid 3972] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3973] setpgid(0, 0 [pid 3972] pipe2( [pid 3973] <... setpgid resumed>) = 0 [pid 3972] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3972] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3973] <... openat resumed>) = 3 [pid 3972] <... write resumed>) = 21 [pid 3972] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3973] write(3, "1000", 4) = 4 [pid 3973] close(3) = 0 [pid 3968] <... mount resumed>) = -1 EIO (Input/output error) [pid 3973] memfd_create("syzkaller", 0) = 3 [pid 3968] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3973] ftruncate(3, 0 [pid 3968] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3615] close(3 [pid 3973] <... ftruncate resumed>) = 0 [pid 3968] +++ exited with 0 +++ [pid 3973] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3973] <... openat resumed>) = 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3968, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3973] ioctl(4, LOOP_SET_FD, 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3973] <... ioctl resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3974 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3973] mkdir("./file0", 0777 [pid 3971] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3975 [pid 3973] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3971] exit_group(0 [pid 3973] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3971] <... exit_group resumed>) = ? [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3973] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 3973] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3971] +++ exited with 0 +++ [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3975 attached ./strace-static-x86_64: Process 3974 attached [pid 3973] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3971, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3973] <... write resumed>) = 21 [pid 3972] <... mount resumed>) = -1 EIO (Input/output error) [pid 3975] <... prctl resumed>) = 0 [pid 3974] <... prctl resumed>) = 0 [pid 3973] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3972] exit_group(0 [pid 3975] setpgid(0, 0 [pid 3974] setpgid(0, 0 [pid 3972] <... exit_group resumed>) = ? [pid 3975] <... setpgid resumed>) = 0 [pid 3974] <... setpgid resumed>) = 0 [pid 3975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3975] <... openat resumed>) = 3 [pid 3975] write(3, "1000", 4) = 4 [pid 3974] <... openat resumed>) = 3 [pid 3975] close(3 [pid 3974] write(3, "1000", 4 [pid 3972] +++ exited with 0 +++ [pid 3975] <... close resumed>) = 0 [pid 3974] <... write resumed>) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3972, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3975] memfd_create("syzkaller", 0 [pid 3974] close(3 [pid 3975] <... memfd_create resumed>) = 3 [pid 3974] <... close resumed>) = 0 [pid 3975] ftruncate(3, 0 [pid 3974] memfd_create("syzkaller", 0 [pid 3975] <... ftruncate resumed>) = 0 [pid 3974] <... memfd_create resumed>) = 3 [pid 3975] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3974] ftruncate(3, 0 [pid 3975] <... openat resumed>) = 4 [pid 3974] <... ftruncate resumed>) = 0 [pid 3975] ioctl(4, LOOP_SET_FD, 3 [pid 3974] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3973] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3975] <... ioctl resumed>) = 0 [pid 3974] <... openat resumed>) = 4 [pid 3973] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3975] mkdir("./file0", 0777 [pid 3974] ioctl(4, LOOP_SET_FD, 3 [pid 3973] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3975] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3974] <... ioctl resumed>) = 0 [pid 3975] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3974] mkdir("./file0", 0777 [pid 3975] pipe2( [pid 3974] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3973] +++ exited with 0 +++ [pid 3975] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3974] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3975] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3974] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3973, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3975] <... write resumed>) = 21 [pid 3974] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3975] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3974] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3974] <... write resumed>) = 21 [pid 3974] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3618] close(3 [pid 3616] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3976 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3977 ./strace-static-x86_64: Process 3976 attached ./strace-static-x86_64: Process 3977 attached [pid 3977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3977] setpgid(0, 0) = 0 [pid 3977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3977] write(3, "1000", 4) = 4 [pid 3977] close(3) = 0 [pid 3977] memfd_create("syzkaller", 0) = 3 [pid 3977] ftruncate(3, 0) = 0 [pid 3976] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3975] <... mount resumed>) = -1 EIO (Input/output error) [pid 3977] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3976] <... prctl resumed>) = 0 [pid 3975] exit_group(0 [pid 3974] <... mount resumed>) = -1 EIO (Input/output error) [pid 3977] <... openat resumed>) = 4 [pid 3976] setpgid(0, 0 [pid 3975] <... exit_group resumed>) = ? [pid 3974] exit_group(0 [pid 3976] <... setpgid resumed>) = 0 [pid 3977] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3977] mkdir("./file0", 0777 [pid 3976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3975] +++ exited with 0 +++ [pid 3974] <... exit_group resumed>) = ? [pid 3977] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3976] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3975, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3977] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3976] write(3, "1000", 4 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3977] pipe2( [pid 3976] <... write resumed>) = 4 [pid 3974] +++ exited with 0 +++ [pid 3615] <... restart_syscall resumed>) = 0 [pid 3977] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3976] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3974, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3977] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3976] <... close resumed>) = 0 [pid 3977] <... write resumed>) = 21 [pid 3976] memfd_create("syzkaller", 0 [pid 3977] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3976] <... memfd_create resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3976] ftruncate(3, 0 [pid 3619] close(3 [pid 3617] close(3 [pid 3976] <... ftruncate resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3976] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3976] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3976] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3978 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3979 ./strace-static-x86_64: Process 3978 attached [pid 3976] <... ioctl resumed>) = 0 [pid 3978] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3976] mkdir("./file0", 0777 [pid 3978] <... prctl resumed>) = 0 [pid 3976] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3978] setpgid(0, 0 [pid 3976] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3979 attached [pid 3978] <... setpgid resumed>) = 0 [pid 3976] pipe2( [pid 3979] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3976] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3979] <... prctl resumed>) = 0 [pid 3978] <... openat resumed>) = 3 [pid 3976] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3979] setpgid(0, 0 [pid 3978] write(3, "1000", 4 [pid 3976] <... write resumed>) = 21 [pid 3979] <... setpgid resumed>) = 0 [pid 3978] <... write resumed>) = 4 [pid 3976] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3978] close(3 [pid 3620] close(3 [pid 3615] close(3 [pid 3979] <... openat resumed>) = 3 [pid 3978] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3979] write(3, "1000", 4 [pid 3978] memfd_create("syzkaller", 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3979] <... write resumed>) = 4 [pid 3978] <... memfd_create resumed>) = 3 [pid 3979] close(3 [pid 3978] ftruncate(3, 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3980 [pid 3979] <... close resumed>) = 0 [pid 3977] <... mount resumed>) = -1 EIO (Input/output error) [pid 3979] memfd_create("syzkaller", 0 [pid 3977] exit_group(0 [pid 3979] <... memfd_create resumed>) = 3 [pid 3977] <... exit_group resumed>) = ? [pid 3979] ftruncate(3, 0 [pid 3977] +++ exited with 0 +++ [pid 3979] <... ftruncate resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3977, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3979] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3979] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3979] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3979] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3979] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3979] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3979] pipe2([5, 6], 0) = 0 [pid 3979] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3979] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3978] <... ftruncate resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3981 [pid 3978] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3978] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3981 attached ) = 0 [pid 3981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3978] mkdir("./file0", 0777 [pid 3981] <... prctl resumed>) = 0 [pid 3978] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3980 attached [pid 3981] setpgid(0, 0 [pid 3978] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3981] <... setpgid resumed>) = 0 [pid 3980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3978] pipe2( [pid 3976] <... mount resumed>) = -1 EIO (Input/output error) [pid 3981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3980] <... prctl resumed>) = 0 [pid 3978] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3976] exit_group(0 [pid 3981] <... openat resumed>) = 3 [pid 3980] setpgid(0, 0 [pid 3978] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3976] <... exit_group resumed>) = ? [pid 3981] write(3, "1000", 4 [pid 3980] <... setpgid resumed>) = 0 [pid 3978] <... write resumed>) = 21 [pid 3976] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3981] <... write resumed>) = 4 [pid 3980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3978] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3976, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] close(3 [pid 3981] close(3 [pid 3980] <... openat resumed>) = 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... close resumed>) = 0 [pid 3981] <... close resumed>) = 0 [pid 3980] write(3, "1000", 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3981] memfd_create("syzkaller", 0 [pid 3980] <... write resumed>) = 4 [pid 3981] <... memfd_create resumed>) = 3 [pid 3980] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3982 ./strace-static-x86_64: Process 3982 attached [pid 3981] ftruncate(3, 0 [pid 3980] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3981] <... ftruncate resumed>) = 0 [pid 3980] memfd_create("syzkaller", 0 [pid 3618] <... openat resumed>) = 3 [pid 3982] <... prctl resumed>) = 0 [pid 3981] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3980] <... memfd_create resumed>) = 3 [pid 3979] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3980] ftruncate(3, 0 [pid 3979] exit_group(0 [pid 3980] <... ftruncate resumed>) = 0 [pid 3979] <... exit_group resumed>) = ? [pid 3982] setpgid(0, 0 [pid 3981] <... openat resumed>) = 4 [pid 3980] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3979] +++ exited with 0 +++ [pid 3982] <... setpgid resumed>) = 0 [pid 3981] ioctl(4, LOOP_SET_FD, 3 [pid 3980] <... openat resumed>) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3979, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3981] <... ioctl resumed>) = 0 [pid 3980] ioctl(4, LOOP_SET_FD, 3 [pid 3982] <... openat resumed>) = 3 [pid 3981] mkdir("./file0", 0777 [pid 3980] <... ioctl resumed>) = 0 [pid 3982] write(3, "1000", 4 [pid 3981] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3980] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3982] <... write resumed>) = 4 [pid 3981] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3980] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 [pid 3982] close(3 [pid 3981] pipe2( [pid 3980] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3982] <... close resumed>) = 0 [pid 3981] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3980] pipe2( [pid 3982] memfd_create("syzkaller", 0 [pid 3981] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3980] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3980] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3980] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3981] <... write resumed>) = 21 [pid 3982] <... memfd_create resumed>) = 3 [pid 3981] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3982] ftruncate(3, 0) = 0 [pid 3982] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3982] ioctl(4, LOOP_SET_FD, 3 [pid 3978] <... mount resumed>) = -1 EIO (Input/output error) [pid 3982] <... ioctl resumed>) = 0 [pid 3978] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3982] mkdir("./file0", 0777 [pid 3978] <... exit_group resumed>) = ? [pid 3618] close(3 [pid 3617] close(3 [pid 3982] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3978] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3982] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3982] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3978, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3982] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3983 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3984 ./strace-static-x86_64: Process 3983 attached [pid 3982] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3982] <... write resumed>) = 21 [pid 3983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3982] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3983] <... prctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3984 attached [pid 3980] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 3984] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3980] exit_group(0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3984] <... prctl resumed>) = 0 [pid 3980] <... exit_group resumed>) = ? [pid 3983] setpgid(0, 0 [pid 3984] setpgid(0, 0 [pid 3983] <... setpgid resumed>) = 0 [pid 3980] +++ exited with 0 +++ [pid 3984] <... setpgid resumed>) = 0 [pid 3983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3980, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3983] <... openat resumed>) = 3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3984] <... openat resumed>) = 3 [pid 3983] write(3, "1000", 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3984] write(3, "1000", 4 [pid 3983] <... write resumed>) = 4 [pid 3984] <... write resumed>) = 4 [pid 3983] close(3 [pid 3984] close(3 [pid 3983] <... close resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3984] <... close resumed>) = 0 [pid 3983] memfd_create("syzkaller", 0 [pid 3620] <... openat resumed>) = 3 [pid 3984] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3984] <... memfd_create resumed>) = 3 [pid 3984] ftruncate(3, 0) = 0 [pid 3984] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3984] ioctl(4, LOOP_SET_FD, 3 [pid 3983] <... memfd_create resumed>) = 3 [pid 3984] <... ioctl resumed>) = 0 [pid 3983] ftruncate(3, 0 [pid 3984] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3984] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3984] pipe2([5, 6], 0) = 0 [pid 3984] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3984] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3983] <... ftruncate resumed>) = 0 [pid 3981] <... mount resumed>) = -1 EIO (Input/output error) [pid 3983] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3981] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3983] <... openat resumed>) = 4 [pid 3619] close(3 [pid 3981] <... exit_group resumed>) = ? [pid 3983] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3983] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3983] mkdir("./file0", 0777 [pid 3981] +++ exited with 0 +++ [pid 3620] close(3 [pid 3983] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3985 [pid 3983] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3981, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 3986 attached [pid 3983] pipe2( [pid 3982] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3986] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3983] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3982] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3986 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3986] <... prctl resumed>) = 0 [pid 3983] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3982] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3985 attached [pid 3986] setpgid(0, 0 [pid 3983] <... write resumed>) = 21 [pid 3986] <... setpgid resumed>) = 0 [pid 3985] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3983] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3982] +++ exited with 0 +++ [pid 3986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3985] <... prctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3982, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3986] <... openat resumed>) = 3 [pid 3985] setpgid(0, 0 [pid 3986] write(3, "1000", 4 [pid 3985] <... setpgid resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3986] <... write resumed>) = 4 [pid 3985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3986] close(3 [pid 3985] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3986] <... close resumed>) = 0 [pid 3985] write(3, "1000", 4 [pid 3984] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3985] <... write resumed>) = 4 [pid 3984] exit_group(0 [pid 3985] close(3 [pid 3984] <... exit_group resumed>) = ? [pid 3986] memfd_create("syzkaller", 0 [pid 3985] <... close resumed>) = 0 [pid 3984] +++ exited with 0 +++ [pid 3986] <... memfd_create resumed>) = 3 [pid 3985] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3984, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3986] ftruncate(3, 0 [pid 3985] <... memfd_create resumed>) = 3 [pid 3986] <... ftruncate resumed>) = 0 [pid 3985] ftruncate(3, 0 [pid 3986] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3985] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3986] <... openat resumed>) = 4 [pid 3985] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 3986] ioctl(4, LOOP_SET_FD, 3 [pid 3985] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3986] <... ioctl resumed>) = 0 [pid 3985] ioctl(4, LOOP_SET_FD, 3 [pid 3986] mkdir("./file0", 0777 [pid 3985] <... ioctl resumed>) = 0 [pid 3986] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3985] mkdir("./file0", 0777 [pid 3986] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3985] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3986] pipe2( [pid 3985] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3986] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3985] pipe2( [pid 3986] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3985] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3986] <... write resumed>) = 21 [pid 3985] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3986] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3985] <... write resumed>) = 21 [pid 3985] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3983] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3983] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3983] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3983] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3983, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3987 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3988 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3989 [pid 3986] <... mount resumed>) = -1 EIO (Input/output error) [pid 3986] exit_group(0) = ? [pid 3986] +++ exited with 0 +++ ./strace-static-x86_64: Process 3989 attached ./strace-static-x86_64: Process 3987 attached [pid 3989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3987] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3988 attached [pid 3989] <... prctl resumed>) = 0 [pid 3987] <... prctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3986, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3989] setpgid(0, 0 [pid 3987] setpgid(0, 0 [pid 3989] <... setpgid resumed>) = 0 [pid 3988] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3987] <... setpgid resumed>) = 0 [pid 3985] <... mount resumed>) = -1 EIO (Input/output error) [pid 3989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3988] <... prctl resumed>) = 0 [pid 3985] exit_group(0 [pid 3989] <... openat resumed>) = 3 [pid 3988] setpgid(0, 0 [pid 3989] write(3, "1000", 4 [pid 3988] <... setpgid resumed>) = 0 [pid 3987] <... openat resumed>) = 3 [pid 3985] <... exit_group resumed>) = ? [pid 3989] <... write resumed>) = 4 [pid 3988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3987] write(3, "1000", 4) = 4 [pid 3989] close(3 [pid 3988] <... openat resumed>) = 3 [pid 3987] close(3 [pid 3985] +++ exited with 0 +++ [pid 3989] <... close resumed>) = 0 [pid 3989] memfd_create("syzkaller", 0 [pid 3988] write(3, "1000", 4 [pid 3987] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3985, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3989] <... memfd_create resumed>) = 3 [pid 3988] <... write resumed>) = 4 [pid 3987] memfd_create("syzkaller", 0 [pid 3989] ftruncate(3, 0 [pid 3988] close(3 [pid 3987] <... memfd_create resumed>) = 3 [pid 3989] <... ftruncate resumed>) = 0 [pid 3988] <... close resumed>) = 0 [pid 3987] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3989] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3988] memfd_create("syzkaller", 0 [pid 3987] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3989] <... openat resumed>) = 4 [pid 3988] <... memfd_create resumed>) = 3 [pid 3987] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3989] ioctl(4, LOOP_SET_FD, 3 [pid 3988] ftruncate(3, 0 [pid 3987] <... openat resumed>) = 4 [pid 3989] <... ioctl resumed>) = 0 [pid 3988] <... ftruncate resumed>) = 0 [pid 3987] ioctl(4, LOOP_SET_FD, 3 [pid 3989] mkdir("./file0", 0777 [pid 3988] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3987] <... ioctl resumed>) = 0 [pid 3989] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3988] <... openat resumed>) = 4 [pid 3987] mkdir("./file0", 0777 [pid 3989] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3988] ioctl(4, LOOP_SET_FD, 3 [pid 3987] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3989] pipe2( [pid 3988] <... ioctl resumed>) = 0 [pid 3987] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3989] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3988] mkdir("./file0", 0777 [pid 3987] pipe2( [pid 3989] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3988] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3987] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3989] <... write resumed>) = 21 [pid 3988] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3987] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3989] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3988] pipe2( [pid 3987] <... write resumed>) = 21 [pid 3988] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3987] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3988] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3988] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3989] <... mount resumed>) = -1 EIO (Input/output error) [pid 3989] exit_group(0) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 3990 [pid 3989] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3989, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3619] close(3 [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3991 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3992 ./strace-static-x86_64: Process 3991 attached ./strace-static-x86_64: Process 3992 attached [pid 3987] <... mount resumed>) = -1 EIO (Input/output error) [pid 3987] exit_group(0 [pid 3992] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3987] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3990 attached [pid 3987] +++ exited with 0 +++ [pid 3990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3992] <... prctl resumed>) = 0 [pid 3991] <... prctl resumed>) = 0 [pid 3990] <... prctl resumed>) = 0 [pid 3988] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3987, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3992] setpgid(0, 0 [pid 3991] setpgid(0, 0 [pid 3990] setpgid(0, 0 [pid 3988] exit_group(0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3615] close(3 [pid 3992] <... setpgid resumed>) = 0 [pid 3991] <... setpgid resumed>) = 0 [pid 3990] <... setpgid resumed>) = 0 [pid 3988] <... exit_group resumed>) = ? [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3991] <... openat resumed>) = 3 [pid 3990] <... openat resumed>) = 3 [pid 3988] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3992] <... openat resumed>) = 3 [pid 3991] write(3, "1000", 4 [pid 3990] write(3, "1000", 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3988, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3992] write(3, "1000", 4 [pid 3991] <... write resumed>) = 4 [pid 3990] <... write resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3992] <... write resumed>) = 4 [pid 3991] close(3 [pid 3990] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3992] close(3 [pid 3991] <... close resumed>) = 0 [pid 3990] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3993 [pid 3992] <... close resumed>) = 0 [pid 3991] memfd_create("syzkaller", 0 [pid 3990] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3993 attached [pid 3992] memfd_create("syzkaller", 0 [pid 3991] <... memfd_create resumed>) = 3 [pid 3990] <... memfd_create resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3992] <... memfd_create resumed>) = 3 [pid 3991] ftruncate(3, 0 [pid 3990] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3993] <... prctl resumed>) = 0 [pid 3992] ftruncate(3, 0 [pid 3991] <... ftruncate resumed>) = 0 [pid 3990] <... ftruncate resumed>) = 0 [pid 3993] setpgid(0, 0 [pid 3992] <... ftruncate resumed>) = 0 [pid 3991] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3990] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3993] <... setpgid resumed>) = 0 [pid 3992] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3991] <... openat resumed>) = 4 [pid 3990] <... openat resumed>) = 4 [pid 3993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3992] <... openat resumed>) = 4 [pid 3991] ioctl(4, LOOP_SET_FD, 3 [pid 3990] ioctl(4, LOOP_SET_FD, 3 [pid 3993] <... openat resumed>) = 3 [pid 3992] ioctl(4, LOOP_SET_FD, 3 [pid 3991] <... ioctl resumed>) = 0 [pid 3990] <... ioctl resumed>) = 0 [pid 3993] write(3, "1000", 4 [pid 3992] <... ioctl resumed>) = 0 [pid 3991] mkdir("./file0", 0777 [pid 3990] mkdir("./file0", 0777 [pid 3993] <... write resumed>) = 4 [pid 3992] mkdir("./file0", 0777 [pid 3991] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3990] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3993] close(3 [pid 3992] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3991] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3990] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3993] <... close resumed>) = 0 [pid 3992] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3991] pipe2( [pid 3990] pipe2( [pid 3993] memfd_create("syzkaller", 0 [pid 3992] pipe2( [pid 3991] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3990] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3993] <... memfd_create resumed>) = 3 [pid 3992] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3991] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3990] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3993] ftruncate(3, 0 [pid 3992] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3991] <... write resumed>) = 21 [pid 3990] <... write resumed>) = 21 [pid 3617] <... ioctl resumed>) = 0 [pid 3993] <... ftruncate resumed>) = 0 [pid 3992] <... write resumed>) = 21 [pid 3991] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3990] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] close(3 [pid 3993] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3992] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3993] <... openat resumed>) = 4 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] close(3 [pid 3993] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3616] <... close resumed>) = 0 [pid 3993] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 3994 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3993] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3993] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3993] pipe2( [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 3995 ./strace-static-x86_64: Process 3994 attached [pid 3993] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3993] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3994] <... prctl resumed>) = 0 [pid 3993] <... write resumed>) = 21 [pid 3994] setpgid(0, 0 [pid 3993] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3994] <... setpgid resumed>) = 0 [pid 3994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3995 attached [pid 3990] <... mount resumed>) = -1 EIO (Input/output error) [pid 3995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3995] setpgid(0, 0) = 0 [pid 3995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3995] write(3, "1000", 4) = 4 [pid 3995] close(3) = 0 [pid 3995] memfd_create("syzkaller", 0) = 3 [pid 3995] ftruncate(3, 0) = 0 [pid 3995] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3995] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3995] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3995] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3995] pipe2([5, 6], 0) = 0 [pid 3995] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3995] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3994] <... openat resumed>) = 3 [pid 3990] exit_group(0 [pid 3994] write(3, "1000", 4 [pid 3990] <... exit_group resumed>) = ? [pid 3994] <... write resumed>) = 4 [pid 3990] +++ exited with 0 +++ [pid 3994] close(3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3990, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3994] memfd_create("syzkaller", 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3994] <... memfd_create resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3994] ftruncate(3, 0 [pid 3991] <... mount resumed>) = -1 EIO (Input/output error) [pid 3994] <... ftruncate resumed>) = 0 [pid 3991] exit_group(0 [pid 3994] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3991] <... exit_group resumed>) = ? [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3994] <... openat resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 3994] ioctl(4, LOOP_SET_FD, 3 [pid 3991] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3994] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3991, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3994] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3994] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3994] pipe2([5, 6], 0) = 0 [pid 3994] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3994] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3993] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 3993] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3993] <... exit_group resumed>) = ? [pid 3993] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3993, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3992] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... openat resumed>) = 3 [pid 3992] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3992] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3618] close(3 [pid 3992] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3992, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3995] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 3996 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 3997 [pid 3995] exit_group(0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3995] <... exit_group resumed>) = ? [pid 3995] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3995, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... openat resumed>) = 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... restart_syscall resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3997 attached [pid 3997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3997] setpgid(0, 0) = 0 [pid 3997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3997] write(3, "1000", 4) = 4 [pid 3997] close(3) = 0 [pid 3997] memfd_create("syzkaller", 0) = 3 [pid 3997] ftruncate(3, 0) = 0 [pid 3997] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3997] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3997] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3997] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3997] pipe2(./strace-static-x86_64: Process 3996 attached [5, 6], 0) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3997] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3994] <... mount resumed>) = -1 EIO (Input/output error) [pid 3997] <... write resumed>) = 21 [pid 3996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3994] exit_group(0 [pid 3615] close(3 [pid 3997] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3996] <... prctl resumed>) = 0 [pid 3994] <... exit_group resumed>) = ? [pid 3996] setpgid(0, 0 [pid 3615] <... close resumed>) = 0 [pid 3994] +++ exited with 0 +++ [pid 3996] <... setpgid resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3994, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3996] <... openat resumed>) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 3998 [pid 3996] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3998 attached [pid 3996] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3998] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3996] <... close resumed>) = 0 [pid 3619] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3616] close(3 [pid 3998] <... prctl resumed>) = 0 [pid 3996] memfd_create("syzkaller", 0 [pid 3619] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] <... close resumed>) = 0 [pid 3998] setpgid(0, 0 [pid 3996] <... memfd_create resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3998] <... setpgid resumed>) = 0 [pid 3996] ftruncate(3, 0 [pid 3998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3996] <... ftruncate resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 3999 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4000 ./strace-static-x86_64: Process 3999 attached [pid 3998] <... openat resumed>) = 3 [pid 3996] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3998] write(3, "1000", 4 [pid 3996] <... openat resumed>) = 4 [pid 3999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3998] <... write resumed>) = 4 [pid 3996] ioctl(4, LOOP_SET_FD, 3 [pid 3999] <... prctl resumed>) = 0 [pid 3998] close(3 [pid 3996] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4000 attached [pid 3999] setpgid(0, 0 [pid 3998] <... close resumed>) = 0 [pid 3996] mkdir("./file0", 0777 [pid 4000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3999] <... setpgid resumed>) = 0 [pid 3998] memfd_create("syzkaller", 0 [pid 3996] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4000] <... prctl resumed>) = 0 [pid 3999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3998] <... memfd_create resumed>) = 3 [pid 3996] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4000] setpgid(0, 0 [pid 3999] <... openat resumed>) = 3 [pid 3998] ftruncate(3, 0 [pid 3996] pipe2( [pid 4000] <... setpgid resumed>) = 0 [pid 3999] write(3, "1000", 4 [pid 3998] <... ftruncate resumed>) = 0 [pid 3996] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3999] <... write resumed>) = 4 [pid 3998] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3996] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4000] <... openat resumed>) = 3 [pid 3999] close(3 [pid 3998] <... openat resumed>) = 4 [pid 3996] <... write resumed>) = 21 [pid 4000] write(3, "1000", 4 [pid 3999] <... close resumed>) = 0 [pid 3998] ioctl(4, LOOP_SET_FD, 3 [pid 3996] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4000] <... write resumed>) = 4 [pid 3999] memfd_create("syzkaller", 0 [pid 3998] <... ioctl resumed>) = 0 [pid 3997] <... mount resumed>) = -1 EIO (Input/output error) [pid 4000] close(3 [pid 3997] exit_group(0 [pid 4000] <... close resumed>) = 0 [pid 3999] <... memfd_create resumed>) = 3 [pid 3998] mkdir("./file0", 0777 [pid 3997] <... exit_group resumed>) = ? [pid 4000] memfd_create("syzkaller", 0 [pid 3999] ftruncate(3, 0 [pid 3998] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3997] +++ exited with 0 +++ [pid 4000] <... memfd_create resumed>) = 3 [pid 3999] <... ftruncate resumed>) = 0 [pid 3998] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3997, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4000] ftruncate(3, 0 [pid 3999] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3998] pipe2( [pid 4000] <... ftruncate resumed>) = 0 [pid 3999] <... openat resumed>) = 4 [pid 3998] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4000] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3999] ioctl(4, LOOP_SET_FD, 3 [pid 3998] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] close(3 [pid 4000] <... openat resumed>) = 4 [pid 3999] <... ioctl resumed>) = 0 [pid 3998] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = 0 [pid 4000] ioctl(4, LOOP_SET_FD, 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4000] <... ioctl resumed>) = 0 [pid 3998] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3999] mkdir("./file0", 0777 [pid 4000] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4001 [pid 4000] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3999] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4000] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3999] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4000] pipe2( [pid 3999] pipe2( [pid 4000] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3999] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4000] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3999] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4000] <... write resumed>) = 21 [pid 3996] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4001 attached [pid 4000] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4001] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3999] <... write resumed>) = 21 [pid 4001] <... prctl resumed>) = 0 [pid 3999] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4001] setpgid(0, 0) = 0 [pid 4001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3996] exit_group(0 [pid 4001] write(3, "1000", 4 [pid 3996] <... exit_group resumed>) = ? [pid 4001] <... write resumed>) = 4 [pid 4001] close(3) = 0 [pid 3996] +++ exited with 0 +++ [pid 4001] memfd_create("syzkaller", 0) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3996, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4001] ftruncate(3, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4001] <... ftruncate resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4001] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4001] <... openat resumed>) = 4 [pid 4001] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4001] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4001] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4001] pipe2( [pid 3998] <... mount resumed>) = -1 EIO (Input/output error) [pid 4001] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3998] exit_group(0 [pid 4001] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3998] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4001] <... write resumed>) = 21 [pid 3998] +++ exited with 0 +++ [pid 3618] close(3 [pid 4001] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3998, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4002 ./strace-static-x86_64: Process 4002 attached [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4002] setpgid(0, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4003 [pid 4002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4002] write(3, "1000", 4) = 4 [pid 4002] close(3) = 0 [pid 4000] <... mount resumed>) = -1 EIO (Input/output error) [pid 4002] memfd_create("syzkaller", 0) = 3 [pid 4002] ftruncate(3, 0) = 0 [pid 4000] exit_group(0) = ? [pid 4002] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4002] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4002] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4002] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4000] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4000, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4002] pipe2([5, 6], 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4002] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 4002] <... write resumed>) = 21 [pid 4002] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4003 attached [pid 4003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4003] setpgid(0, 0) = 0 [pid 4003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3999] <... mount resumed>) = -1 EIO (Input/output error) [pid 4003] write(3, "1000", 4) = 4 [pid 4003] close(3) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4004 [pid 3999] exit_group(0 [pid 4003] memfd_create("syzkaller", 0) = 3 [pid 3999] <... exit_group resumed>) = ? [pid 4003] ftruncate(3, 0) = 0 [pid 4003] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4003] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4003] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3999] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3999, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... close resumed>) = 0 [pid 4003] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4005 [pid 4003] pipe2([5, 6], 0) = 0 [pid 4003] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4003] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4004 attached [pid 4004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4004] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4005 attached [pid 4005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4005] <... prctl resumed>) = 0 [pid 4005] setpgid(0, 0) = 0 [pid 4005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4005] write(3, "1000", 4) = 4 [pid 4005] close(3) = 0 [pid 4005] memfd_create("syzkaller", 0) = 3 [pid 4005] ftruncate(3, 0) = 0 [pid 4005] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4005] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4005] mkdir("./file0", 0777 [pid 4004] <... openat resumed>) = 3 [pid 4001] <... mount resumed>) = -1 EIO (Input/output error) [pid 4005] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4004] write(3, "1000", 4 [pid 4001] exit_group(0 [pid 4005] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4005] pipe2([5, 6], 0) = 0 [pid 4005] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4005] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4004] <... write resumed>) = 4 [pid 4001] <... exit_group resumed>) = ? [pid 4004] close(3 [pid 4001] +++ exited with 0 +++ [pid 4004] <... close resumed>) = 0 [pid 4004] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4001, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4004] <... memfd_create resumed>) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4004] ftruncate(3, 0 [pid 3617] <... openat resumed>) = 3 [pid 4004] <... ftruncate resumed>) = 0 [pid 4004] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4004] <... openat resumed>) = 4 [pid 4004] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4004] mkdir("./file0", 0777 [pid 3619] close(3 [pid 4004] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... close resumed>) = 0 [pid 4004] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4004] pipe2([5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4006 [pid 4004] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4006 attached ) = 21 [pid 4006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4004] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4002] <... mount resumed>) = -1 EIO (Input/output error) [pid 4006] <... prctl resumed>) = 0 [pid 4002] exit_group(0 [pid 4006] setpgid(0, 0 [pid 4002] <... exit_group resumed>) = ? [pid 4006] <... setpgid resumed>) = 0 [pid 4002] +++ exited with 0 +++ [pid 4006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4002, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4006] write(3, "1000", 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4006] <... write resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4006] close(3 [pid 4003] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 4006] <... close resumed>) = 0 [pid 4003] exit_group(0 [pid 3617] close(3 [pid 4006] memfd_create("syzkaller", 0 [pid 4003] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4006] <... memfd_create resumed>) = 3 [pid 4003] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4006] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4003, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4007 attached [pid 4006] <... ftruncate resumed>) = 0 [pid 4005] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4007 [pid 4007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4006] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4005] exit_group(0 [pid 3618] close(3 [pid 4007] <... prctl resumed>) = 0 [pid 4006] <... openat resumed>) = 4 [pid 4005] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4007] setpgid(0, 0 [pid 4006] ioctl(4, LOOP_SET_FD, 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4005] +++ exited with 0 +++ [pid 4007] <... setpgid resumed>) = 0 [pid 4006] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4005, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4006] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4008 [pid 4007] <... openat resumed>) = 3 [pid 4006] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4008 attached [pid 4007] write(3, "1000", 4 [pid 4006] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4007] <... write resumed>) = 4 [pid 4006] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4008] <... prctl resumed>) = 0 [pid 4007] close(3 [pid 4006] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4008] setpgid(0, 0 [pid 4007] <... close resumed>) = 0 [pid 4006] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4008] <... setpgid resumed>) = 0 [pid 4007] memfd_create("syzkaller", 0 [pid 4006] <... write resumed>) = 21 [pid 4008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4007] <... memfd_create resumed>) = 3 [pid 4006] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4008] <... openat resumed>) = 3 [pid 4007] ftruncate(3, 0 [pid 4008] write(3, "1000", 4 [pid 4007] <... ftruncate resumed>) = 0 [pid 4008] <... write resumed>) = 4 [pid 4007] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4008] close(3 [pid 4007] <... openat resumed>) = 4 [pid 4008] <... close resumed>) = 0 [pid 4007] ioctl(4, LOOP_SET_FD, 3 [pid 4004] <... mount resumed>) = -1 EIO (Input/output error) [pid 4004] exit_group(0) = ? [pid 4004] +++ exited with 0 +++ [pid 4008] memfd_create("syzkaller", 0 [pid 4007] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4004, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4008] <... memfd_create resumed>) = 3 [pid 4007] mkdir("./file0", 0777 [pid 4008] ftruncate(3, 0) = 0 [pid 4007] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4008] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4007] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4008] <... openat resumed>) = 4 [pid 4007] pipe2( [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4008] ioctl(4, LOOP_SET_FD, 3 [pid 4007] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4008] <... ioctl resumed>) = 0 [pid 4007] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4008] mkdir("./file0", 0777 [pid 4007] <... write resumed>) = 21 [pid 4008] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4007] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4008] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4008] pipe2( [pid 3620] close(3 [pid 3616] close(3 [pid 4008] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4008] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4008] <... write resumed>) = 21 [pid 4008] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4009 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4010 [pid 4006] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4010 attached [pid 4010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4010] setpgid(0, 0) = 0 [pid 4010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4010] write(3, "1000", 4 [pid 4006] exit_group(0 [pid 4010] <... write resumed>) = 4 [pid 4006] <... exit_group resumed>) = ? [pid 4010] close(3 [pid 4006] +++ exited with 0 +++ [pid 4010] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4006, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4010] memfd_create("syzkaller", 0) = 3 [pid 4010] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4010] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4009 attached [pid 4010] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 4010] <... openat resumed>) = 4 [pid 3615] close(3 [pid 4010] ioctl(4, LOOP_SET_FD, 3 [pid 4009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... close resumed>) = 0 [pid 4010] <... ioctl resumed>) = 0 [pid 4009] <... prctl resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4010] mkdir("./file0", 0777 [pid 4009] setpgid(0, 0 [pid 4007] <... mount resumed>) = -1 EIO (Input/output error) [pid 4010] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4009] <... setpgid resumed>) = 0 [pid 4007] exit_group(0 [pid 4010] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4010] pipe2([5, 6], 0) = 0 [pid 4010] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4011 [pid 4010] <... write resumed>) = 21 [pid 4010] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4009] <... openat resumed>) = 3 [pid 4009] write(3, "1000", 4 [pid 4007] <... exit_group resumed>) = ? [pid 4009] <... write resumed>) = 4 [pid 4009] close(3./strace-static-x86_64: Process 4011 attached ) = 0 [pid 4007] +++ exited with 0 +++ [pid 4008] <... mount resumed>) = -1 EIO (Input/output error) [pid 4011] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4009] memfd_create("syzkaller", 0 [pid 4008] exit_group(0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4007, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4011] <... prctl resumed>) = 0 [pid 4009] <... memfd_create resumed>) = 3 [pid 4008] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4011] setpgid(0, 0 [pid 4009] ftruncate(3, 0 [pid 4008] +++ exited with 0 +++ [pid 3619] close(3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4011] <... setpgid resumed>) = 0 [pid 4009] <... ftruncate resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4011] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4009] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4008, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4011] <... openat resumed>) = 3 [pid 4009] <... openat resumed>) = 4 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4012 attached [pid 4011] write(3, "1000", 4 [pid 4009] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4012 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4011] <... write resumed>) = 4 [pid 4009] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4011] close(3 [pid 4009] mkdir("./file0", 0777 [pid 4012] <... prctl resumed>) = 0 [pid 4011] <... close resumed>) = 0 [pid 4009] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4012] setpgid(0, 0 [pid 4011] memfd_create("syzkaller", 0 [pid 4009] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4012] <... setpgid resumed>) = 0 [pid 4011] <... memfd_create resumed>) = 3 [pid 4009] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4011] ftruncate(3, 0 [pid 4009] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4012] <... openat resumed>) = 3 [pid 4011] <... ftruncate resumed>) = 0 [pid 4009] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4012] write(3, "1000", 4 [pid 4011] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4009] <... write resumed>) = 21 [pid 4012] <... write resumed>) = 4 [pid 4011] <... openat resumed>) = 4 [pid 4009] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4012] close(3 [pid 4011] ioctl(4, LOOP_SET_FD, 3 [pid 4012] <... close resumed>) = 0 [pid 4011] <... ioctl resumed>) = 0 [pid 4012] memfd_create("syzkaller", 0 [pid 4011] mkdir("./file0", 0777 [pid 4012] <... memfd_create resumed>) = 3 [pid 4011] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4012] ftruncate(3, 0 [pid 4011] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4012] <... ftruncate resumed>) = 0 [pid 4011] pipe2( [pid 4012] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4011] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4012] <... openat resumed>) = 4 [pid 4011] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4012] ioctl(4, LOOP_SET_FD, 3 [pid 4011] <... write resumed>) = 21 [pid 4012] <... ioctl resumed>) = 0 [pid 4011] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4012] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4010] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4012] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4010] exit_group(0 [pid 3617] close(3 [pid 4012] pipe2( [pid 4010] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4012] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4010] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4012] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4010, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4012] <... write resumed>) = 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4013 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4012] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... restart_syscall resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4013 attached [pid 4013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4013] setpgid(0, 0) = 0 [pid 4013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4013] write(3, "1000", 4 [pid 3618] <... ioctl resumed>) = 0 [pid 4013] <... write resumed>) = 4 [pid 3618] close(3 [pid 4013] close(3 [pid 3618] <... close resumed>) = 0 [pid 4013] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4013] memfd_create("syzkaller", 0) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4014 [pid 4013] ftruncate(3, 0) = 0 [pid 4013] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4013] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4013] mkdir("./file0", 0777 [pid 4011] <... mount resumed>) = -1 EIO (Input/output error) [pid 4013] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4011] exit_group(0 [pid 4013] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4013] pipe2( [pid 4011] <... exit_group resumed>) = ? [pid 4013] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4013] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4011] +++ exited with 0 +++ [pid 4013] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4011, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... close resumed>) = 0 ./strace-static-x86_64: Process 4014 attached [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4009] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4015 ./strace-static-x86_64: Process 4015 attached [pid 4015] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4015] setpgid(0, 0) = 0 [pid 4015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4015] write(3, "1000", 4) = 4 [pid 4014] <... prctl resumed>) = 0 [pid 4009] exit_group(0 [pid 4015] close(3 [pid 4014] setpgid(0, 0 [pid 4009] <... exit_group resumed>) = ? [pid 4015] <... close resumed>) = 0 [pid 4014] <... setpgid resumed>) = 0 [pid 4015] memfd_create("syzkaller", 0 [pid 4014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4009] +++ exited with 0 +++ [pid 4015] <... memfd_create resumed>) = 3 [pid 4014] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4009, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4015] ftruncate(3, 0 [pid 4014] write(3, "1000", 4 [pid 4015] <... ftruncate resumed>) = 0 [pid 4014] <... write resumed>) = 4 [pid 4012] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4015] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4014] close(3 [pid 4012] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] close(3 [pid 4015] <... openat resumed>) = 4 [pid 4014] <... close resumed>) = 0 [pid 4012] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 4015] ioctl(4, LOOP_SET_FD, 3 [pid 4014] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4015] <... ioctl resumed>) = 0 [pid 4014] <... memfd_create resumed>) = 3 [pid 4012] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4015] mkdir("./file0", 0777 [pid 4014] ftruncate(3, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4012, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4015] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4014] <... ftruncate resumed>) = 0 [pid 4015] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4014] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4016 [pid 4015] pipe2( [pid 4014] <... openat resumed>) = 4 [pid 4015] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4014] ioctl(4, LOOP_SET_FD, 3 [pid 4013] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4016 attached [pid 4015] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4014] <... ioctl resumed>) = 0 [pid 4013] exit_group(0 [pid 4016] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4015] <... write resumed>) = 21 [pid 4014] mkdir("./file0", 0777 [pid 4013] <... exit_group resumed>) = ? [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4016] <... prctl resumed>) = 0 [pid 4015] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4014] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4013] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 4016] setpgid(0, 0 [pid 4014] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4016] <... setpgid resumed>) = 0 [pid 4014] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4013, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4014] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4016] <... openat resumed>) = 3 [pid 4014] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... openat resumed>) = 3 [pid 4016] write(3, "1000", 4 [pid 4014] <... write resumed>) = 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4016] <... write resumed>) = 4 [pid 4014] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4016] close(3) = 0 [pid 4016] memfd_create("syzkaller", 0) = 3 [pid 4015] <... mount resumed>) = -1 EIO (Input/output error) [pid 4016] ftruncate(3, 0 [pid 4015] exit_group(0) = ? [pid 4016] <... ftruncate resumed>) = 0 [pid 4016] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4016] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4015] +++ exited with 0 +++ [pid 4016] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4015, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4016] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4016] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... restart_syscall resumed>) = 0 [pid 4016] pipe2([5, 6], 0) = 0 [pid 4016] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4016] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4016] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4014] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4017 [pid 4014] exit_group(0./strace-static-x86_64: Process 4017 attached [pid 4016] <... mount resumed>) = -1 EIO (Input/output error) [pid 4014] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3617] <... ioctl resumed>) = 0 [pid 4014] +++ exited with 0 +++ [pid 4017] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... close resumed>) = 0 [pid 3617] close(3 [pid 4017] <... prctl resumed>) = 0 [pid 4016] exit_group(0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4014, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 4017] setpgid(0, 0 [pid 4016] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4017] <... setpgid resumed>) = 0 [pid 4016] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4018 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4019 [pid 3616] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4018 attached [pid 4017] <... openat resumed>) = 3 [pid 3616] close(3 [pid 4018] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4017] write(3, "1000", 4 [pid 3616] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4016, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4018] <... prctl resumed>) = 0 [pid 4017] <... write resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4018] setpgid(0, 0 [pid 4017] close(3 [pid 4018] <... setpgid resumed>) = 0 [pid 4017] <... close resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4020 [pid 3615] <... openat resumed>) = 3 [pid 4018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4017] memfd_create("syzkaller", 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4018] <... openat resumed>) = 3 [pid 4017] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 4020 attached [pid 4018] write(3, "1000", 4 [pid 4017] ftruncate(3, 0 [pid 4020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4018] <... write resumed>) = 4 [pid 4017] <... ftruncate resumed>) = 0 [pid 4020] <... prctl resumed>) = 0 [pid 4018] close(3 [pid 4017] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4019 attached [pid 4020] setpgid(0, 0 [pid 4018] <... close resumed>) = 0 [pid 4017] <... openat resumed>) = 4 [pid 4020] <... setpgid resumed>) = 0 [pid 4019] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4018] memfd_create("syzkaller", 0 [pid 4017] ioctl(4, LOOP_SET_FD, 3 [pid 4020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4019] <... prctl resumed>) = 0 [pid 4018] <... memfd_create resumed>) = 3 [pid 4017] <... ioctl resumed>) = 0 [pid 4020] <... openat resumed>) = 3 [pid 4019] setpgid(0, 0 [pid 4018] ftruncate(3, 0 [pid 4017] mkdir("./file0", 0777 [pid 4020] write(3, "1000", 4 [pid 4019] <... setpgid resumed>) = 0 [pid 4018] <... ftruncate resumed>) = 0 [pid 4017] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4020] <... write resumed>) = 4 [pid 4019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4018] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4020] close(3 [pid 4019] <... openat resumed>) = 3 [pid 4018] <... openat resumed>) = 4 [pid 4017] pipe2( [pid 4020] <... close resumed>) = 0 [pid 4019] write(3, "1000", 4 [pid 4018] ioctl(4, LOOP_SET_FD, 3 [pid 4017] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4020] memfd_create("syzkaller", 0 [pid 4019] <... write resumed>) = 4 [pid 4018] <... ioctl resumed>) = 0 [pid 4017] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4020] <... memfd_create resumed>) = 3 [pid 4019] close(3 [pid 4018] mkdir("./file0", 0777 [pid 4017] <... write resumed>) = 21 [pid 4020] ftruncate(3, 0 [pid 4019] <... close resumed>) = 0 [pid 4018] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4017] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4020] <... ftruncate resumed>) = 0 [pid 4019] memfd_create("syzkaller", 0 [pid 4018] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4020] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4019] <... memfd_create resumed>) = 3 [pid 4018] pipe2( [pid 4020] <... openat resumed>) = 4 [pid 4019] ftruncate(3, 0 [pid 4018] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4020] ioctl(4, LOOP_SET_FD, 3 [pid 4019] <... ftruncate resumed>) = 0 [pid 4018] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4020] <... ioctl resumed>) = 0 [pid 4019] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4018] <... write resumed>) = 21 [pid 4020] mkdir("./file0", 0777 [pid 4019] <... openat resumed>) = 4 [pid 4018] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4020] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4019] ioctl(4, LOOP_SET_FD, 3 [pid 4020] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4019] <... ioctl resumed>) = 0 [pid 4020] pipe2( [pid 4019] mkdir("./file0", 0777 [pid 4020] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4019] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4020] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4019] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4020] <... write resumed>) = 21 [pid 4019] pipe2( [pid 4020] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4019] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4019] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4019] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3615] close(3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 ./strace-static-x86_64: Process 4021 attached [pid 4017] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4021 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4017] exit_group(0 [pid 4021] <... prctl resumed>) = 0 [pid 4017] <... exit_group resumed>) = ? [pid 4021] setpgid(0, 0./strace-static-x86_64: Process 4022 attached ) = 0 [pid 4017] +++ exited with 0 +++ [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4022 [pid 4021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4017, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4021] <... openat resumed>) = 3 [pid 4021] write(3, "1000", 4) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4021] close(3 [pid 3620] <... openat resumed>) = 3 [pid 4019] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4019] exit_group(0) = ? [pid 4022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4019] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4019, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4022] <... prctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4022] setpgid(0, 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4022] <... setpgid resumed>) = 0 [pid 4022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4022] write(3, "1000", 4 [pid 3617] <... openat resumed>) = 3 [pid 4022] <... write resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4022] close(3) = 0 [pid 4022] memfd_create("syzkaller", 0) = 3 [pid 4022] ftruncate(3, 0) = 0 [pid 4022] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4022] ioctl(4, LOOP_SET_FD, 3 [pid 4021] <... close resumed>) = 0 [pid 4022] <... ioctl resumed>) = 0 [pid 4021] memfd_create("syzkaller", 0 [pid 4022] mkdir("./file0", 0777 [pid 4021] <... memfd_create resumed>) = 3 [pid 4022] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4021] ftruncate(3, 0) = 0 [pid 4022] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4021] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4022] pipe2( [pid 4021] <... openat resumed>) = 4 [pid 4021] ioctl(4, LOOP_SET_FD, 3 [pid 4022] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4021] <... ioctl resumed>) = 0 [pid 4021] mkdir("./file0", 0777 [pid 4022] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4021] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4022] <... write resumed>) = 21 [pid 4021] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4022] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4021] pipe2([5, 6], 0) = 0 [pid 4021] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4021] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4023 ./strace-static-x86_64: Process 4023 attached [pid 4023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4023] setpgid(0, 0) = 0 [pid 4023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4023] write(3, "1000", 4) = 4 [pid 4023] close(3) = 0 [pid 4023] memfd_create("syzkaller", 0) = 3 [pid 4023] ftruncate(3, 0) = 0 [pid 4023] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4023] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4023] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4023] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4023] pipe2([5, 6], 0) = 0 [pid 4023] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4018] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4023] <... write resumed>) = 21 [pid 4018] exit_group(0 [pid 3617] close(3 [pid 4023] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4018] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4018] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4018, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4024 ./strace-static-x86_64: Process 4024 attached [pid 4020] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4024] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4020] exit_group(0 [pid 3619] <... openat resumed>) = 3 [pid 4024] <... prctl resumed>) = 0 [pid 4020] <... exit_group resumed>) = ? [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4024] setpgid(0, 0 [pid 4020] +++ exited with 0 +++ [pid 4024] <... setpgid resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4020, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4024] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4024] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4024] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4024] <... close resumed>) = 0 [pid 4024] memfd_create("syzkaller", 0) = 3 [pid 4024] ftruncate(3, 0) = 0 [pid 4024] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4024] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4024] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4024] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4024] pipe2([5, 6], 0) = 0 [pid 4024] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4024] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4021] <... mount resumed>) = -1 EIO (Input/output error) [pid 4021] exit_group(0) = ? [pid 4021] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4021, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4025 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4026 ./strace-static-x86_64: Process 4026 attached ./strace-static-x86_64: Process 4025 attached [pid 4023] <... mount resumed>) = -1 EIO (Input/output error) [pid 4026] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4026] <... prctl resumed>) = 0 [pid 4025] <... prctl resumed>) = 0 [pid 4023] exit_group(0 [pid 4026] setpgid(0, 0 [pid 4025] setpgid(0, 0 [pid 4023] <... exit_group resumed>) = ? [pid 4026] <... setpgid resumed>) = 0 [pid 4025] <... setpgid resumed>) = 0 [pid 4023] +++ exited with 0 +++ [pid 4026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4026] <... openat resumed>) = 3 [pid 4025] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4023, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4026] write(3, "1000", 4 [pid 4025] write(3, "1000", 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 4026] <... write resumed>) = 4 [pid 4025] <... write resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3618] close(3 [pid 4026] close(3 [pid 4025] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 4026] <... close resumed>) = 0 [pid 4025] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4026] memfd_create("syzkaller", 0 [pid 4025] memfd_create("syzkaller", 0 [pid 4026] <... memfd_create resumed>) = 3 [pid 4025] <... memfd_create resumed>) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4027 [pid 4026] ftruncate(3, 0 [pid 4025] ftruncate(3, 0./strace-static-x86_64: Process 4027 attached [pid 4026] <... ftruncate resumed>) = 0 [pid 4025] <... ftruncate resumed>) = 0 [pid 4026] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4025] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4026] <... openat resumed>) = 4 [pid 4025] <... openat resumed>) = 4 [pid 4027] setpgid(0, 0 [pid 4026] ioctl(4, LOOP_SET_FD, 3 [pid 4025] ioctl(4, LOOP_SET_FD, 3 [pid 4027] <... setpgid resumed>) = 0 [pid 4026] <... ioctl resumed>) = 0 [pid 4025] <... ioctl resumed>) = 0 [pid 4027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4026] mkdir("./file0", 0777 [pid 4025] mkdir("./file0", 0777 [pid 4027] <... openat resumed>) = 3 [pid 4026] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4025] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4027] write(3, "1000", 4 [pid 4026] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4025] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4027] <... write resumed>) = 4 [pid 4026] pipe2( [pid 4025] pipe2( [pid 4027] close(3 [pid 4026] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4025] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4027] <... close resumed>) = 0 [pid 4026] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4025] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4027] memfd_create("syzkaller", 0 [pid 4026] <... write resumed>) = 21 [pid 4025] <... write resumed>) = 21 [pid 4027] <... memfd_create resumed>) = 3 [pid 4026] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4025] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4027] ftruncate(3, 0) = 0 [pid 4027] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4027] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4027] mkdir("./file0", 0777 [pid 3620] close(3 [pid 4027] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 4027] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4027] pipe2([5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4028 [pid 4027] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4028 attached ) = 21 [pid 4027] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4022] <... mount resumed>) = -1 EIO (Input/output error) [pid 4022] exit_group(0) = ? [pid 4022] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4022, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4028] setpgid(0, 0) = 0 [pid 4026] <... mount resumed>) = -1 EIO (Input/output error) [pid 4026] exit_group(0) = ? [pid 4026] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4026, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4028] write(3, "1000", 4) = 4 [pid 4028] close(3) = 0 [pid 4028] memfd_create("syzkaller", 0) = 3 [pid 4028] ftruncate(3, 0) = 0 [pid 4028] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4028] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4028] mkdir("./file0", 0777 [pid 4025] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4028] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4025] exit_group(0 [pid 3615] close(3 [pid 4028] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4025] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4028] pipe2( [pid 4025] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4028] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4025, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... ioctl resumed>) = 0 [pid 4028] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4024] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4029 [pid 3616] <... close resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... openat resumed>) = 3 [pid 4028] <... write resumed>) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4030 [pid 4028] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4024] exit_group(0) = ? ./strace-static-x86_64: Process 4030 attached [pid 4024] +++ exited with 0 +++ [pid 4030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4024, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4029 attached [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... openat resumed>) = 3 [pid 4030] <... prctl resumed>) = 0 [pid 4029] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4029] setpgid(0, 0) = 0 [pid 4029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4029] write(3, "1000", 4) = 4 [pid 4029] close(3) = 0 [pid 4029] memfd_create("syzkaller", 0) = 3 [pid 4030] setpgid(0, 0 [pid 4029] ftruncate(3, 0 [pid 4030] <... setpgid resumed>) = 0 [pid 4029] <... ftruncate resumed>) = 0 [pid 4027] <... mount resumed>) = -1 EIO (Input/output error) [pid 4029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4029] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4029] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4029] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4029] pipe2([5, 6], 0) = 0 [pid 4029] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4029] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4028] <... mount resumed>) = -1 EIO (Input/output error) [pid 4027] exit_group(0 [pid 4030] <... openat resumed>) = 3 [pid 4028] exit_group(0 [pid 4027] <... exit_group resumed>) = ? [pid 4030] write(3, "1000", 4 [pid 4028] <... exit_group resumed>) = ? [pid 4027] +++ exited with 0 +++ [pid 4030] <... write resumed>) = 4 [pid 4028] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4027, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4030] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4028, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] close(3 [pid 4030] <... close resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... close resumed>) = 0 [pid 4030] memfd_create("syzkaller", 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... ioctl resumed>) = 0 [pid 4030] <... memfd_create resumed>) = 3 [pid 3617] close(3 [pid 4030] ftruncate(3, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4031 [pid 3617] <... close resumed>) = 0 ./strace-static-x86_64: Process 4031 attached [pid 4030] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4030] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 4031] <... prctl resumed>) = 0 [pid 4030] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4032 [pid 4031] setpgid(0, 0 [pid 4030] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4032 attached [pid 4031] <... setpgid resumed>) = 0 [pid 4030] <... ioctl resumed>) = 0 [pid 4031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4030] mkdir("./file0", 0777 [pid 4032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4031] <... openat resumed>) = 3 [pid 4030] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4029] <... mount resumed>) = -1 EIO (Input/output error) [pid 4032] <... prctl resumed>) = 0 [pid 4031] write(3, "1000", 4 [pid 4030] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4029] exit_group(0 [pid 4032] setpgid(0, 0 [pid 4031] <... write resumed>) = 4 [pid 4030] pipe2( [pid 4029] <... exit_group resumed>) = ? [pid 4032] <... setpgid resumed>) = 0 [pid 4031] close(3 [pid 4030] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4029] +++ exited with 0 +++ [pid 4032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4031] <... close resumed>) = 0 [pid 4030] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4032] <... openat resumed>) = 3 [pid 4031] memfd_create("syzkaller", 0 [pid 4030] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4029, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4032] write(3, "1000", 4 [pid 4031] <... memfd_create resumed>) = 3 [pid 4030] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4032] <... write resumed>) = 4 [pid 4031] ftruncate(3, 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4032] close(3 [pid 4031] <... ftruncate resumed>) = 0 [pid 4032] <... close resumed>) = 0 [pid 4031] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4032] memfd_create("syzkaller", 0 [pid 4031] <... openat resumed>) = 4 [pid 4030] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 3618] close(3 [pid 4032] <... memfd_create resumed>) = 3 [pid 4031] ioctl(4, LOOP_SET_FD, 3 [pid 4030] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4032] ftruncate(3, 0 [pid 4031] <... ioctl resumed>) = 0 [pid 4030] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4032] <... ftruncate resumed>) = 0 [pid 4031] mkdir("./file0", 0777 [pid 4030] +++ exited with 0 +++ [pid 4032] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4031] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4033 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4034 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4030, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4033 attached [pid 4032] <... openat resumed>) = 4 [pid 4031] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4033] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4032] ioctl(4, LOOP_SET_FD, 3 [pid 4031] pipe2( [pid 4033] <... prctl resumed>) = 0 [pid 4032] <... ioctl resumed>) = 0 [pid 4031] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4033] setpgid(0, 0 [pid 4032] mkdir("./file0", 0777 [pid 4031] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4034 attached [pid 4033] <... setpgid resumed>) = 0 [pid 4032] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4031] <... write resumed>) = 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 4034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4032] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4031] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] close(3 [pid 4034] <... prctl resumed>) = 0 [pid 4033] <... openat resumed>) = 3 [pid 4032] pipe2( [pid 3615] <... close resumed>) = 0 [pid 4034] setpgid(0, 0 [pid 4032] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4034] <... setpgid resumed>) = 0 [pid 4032] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4032] <... write resumed>) = 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4035 [pid 4034] <... openat resumed>) = 3 [pid 4033] write(3, "1000", 4 [pid 4032] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4034] write(3, "1000", 4 [pid 4033] <... write resumed>) = 4 [pid 4034] <... write resumed>) = 4 [pid 4033] close(3 [pid 4034] close(3 [pid 4033] <... close resumed>) = 0 [pid 4034] <... close resumed>) = 0 [pid 4034] memfd_create("syzkaller", 0 [pid 4033] memfd_create("syzkaller", 0 [pid 4034] <... memfd_create resumed>) = 3 [pid 4033] <... memfd_create resumed>) = 3 [pid 4034] ftruncate(3, 0) = 0 [pid 4034] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4034] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4034] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4034] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4034] pipe2([5, 6], 0) = 0 [pid 4034] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4033] ftruncate(3, 0./strace-static-x86_64: Process 4035 attached [pid 4034] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4033] <... ftruncate resumed>) = 0 [pid 4035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4033] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4035] <... prctl resumed>) = 0 [pid 4033] <... openat resumed>) = 4 [pid 4031] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4035] setpgid(0, 0 [pid 4033] ioctl(4, LOOP_SET_FD, 3 [pid 4031] exit_group(0 [pid 3616] close(3 [pid 4035] <... setpgid resumed>) = 0 [pid 4033] <... ioctl resumed>) = 0 [pid 4031] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4033] mkdir("./file0", 0777 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4035] <... openat resumed>) = 3 [pid 4033] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4031] +++ exited with 0 +++ [pid 4035] write(3, "1000", 4 [pid 4033] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4036 [pid 4035] <... write resumed>) = 4 [pid 4033] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4031, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4036 attached [pid 4035] close(3 [pid 4033] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4032] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4035] <... close resumed>) = 0 [pid 4034] <... mount resumed>) = -1 EIO (Input/output error) [pid 4033] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4036] <... prctl resumed>) = 0 [pid 4035] memfd_create("syzkaller", 0 [pid 4034] exit_group(0 [pid 4033] <... write resumed>) = 21 [pid 4032] exit_group(0 [pid 3619] <... openat resumed>) = 3 [pid 4036] setpgid(0, 0 [pid 4035] <... memfd_create resumed>) = 3 [pid 4034] <... exit_group resumed>) = ? [pid 4033] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4032] <... exit_group resumed>) = ? [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4036] <... setpgid resumed>) = 0 [pid 4035] ftruncate(3, 0 [pid 4034] +++ exited with 0 +++ [pid 4032] +++ exited with 0 +++ [pid 4036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4035] <... ftruncate resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4034, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4036] <... openat resumed>) = 3 [pid 4035] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4032, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4036] write(3, "1000", 4 [pid 4035] <... openat resumed>) = 4 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4036] <... write resumed>) = 4 [pid 4035] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4036] close(3 [pid 4035] <... ioctl resumed>) = 0 [pid 4036] <... close resumed>) = 0 [pid 4035] mkdir("./file0", 0777 [pid 4036] memfd_create("syzkaller", 0 [pid 4035] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4036] <... memfd_create resumed>) = 3 [pid 4035] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 4036] ftruncate(3, 0 [pid 4035] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4036] <... ftruncate resumed>) = 0 [pid 4035] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4036] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4035] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4036] <... openat resumed>) = 4 [pid 4035] <... write resumed>) = 21 [pid 4035] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4036] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4036] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4033] <... mount resumed>) = -1 EIO (Input/output error) [pid 4036] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4033] exit_group(0 [pid 4036] pipe2([5, 6], 0) = 0 [pid 4036] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4033] <... exit_group resumed>) = ? [pid 4036] <... write resumed>) = 21 [pid 4036] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4033] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4033, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4035] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4035] exit_group(0 [pid 3619] close(3 [pid 3617] close(3 [pid 4035] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4035] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4037 [pid 3618] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4038 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4035, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4039 ./strace-static-x86_64: Process 4038 attached [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4037 attached [pid 4037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4038] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4038] setpgid(0, 0 [pid 4036] <... mount resumed>) = -1 EIO (Input/output error) [pid 4037] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 4039 attached [pid 4038] <... setpgid resumed>) = 0 [pid 4037] setpgid(0, 0 [pid 4036] exit_group(0 [pid 4038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4037] <... setpgid resumed>) = 0 [pid 4036] <... exit_group resumed>) = ? [pid 4039] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4038] <... openat resumed>) = 3 [pid 4037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4039] <... prctl resumed>) = 0 [pid 4038] write(3, "1000", 4 [pid 4037] <... openat resumed>) = 3 [pid 4036] +++ exited with 0 +++ [pid 4039] setpgid(0, 0 [pid 4038] <... write resumed>) = 4 [pid 4037] write(3, "1000", 4 [pid 3620] <... ioctl resumed>) = 0 [pid 4039] <... setpgid resumed>) = 0 [pid 4038] close(3 [pid 4037] <... write resumed>) = 4 [pid 3620] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4036, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4038] <... close resumed>) = 0 [pid 4037] close(3 [pid 3620] <... close resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4039] <... openat resumed>) = 3 [pid 4038] memfd_create("syzkaller", 0 [pid 4037] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... openat resumed>) = 3 [pid 4039] write(3, "1000", 4 [pid 4038] <... memfd_create resumed>) = 3 [pid 4037] memfd_create("syzkaller", 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4040 attached [pid 4039] <... write resumed>) = 4 [pid 4038] ftruncate(3, 0 [pid 4037] <... memfd_create resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4040 [pid 3615] close(3 [pid 4039] close(3 [pid 4038] <... ftruncate resumed>) = 0 [pid 4037] ftruncate(3, 0 [pid 3615] <... close resumed>) = 0 [pid 4040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4039] <... close resumed>) = 0 [pid 4038] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4037] <... ftruncate resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4040] <... prctl resumed>) = 0 [pid 4039] memfd_create("syzkaller", 0 [pid 4038] <... openat resumed>) = 4 [pid 4037] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4040] setpgid(0, 0 [pid 4039] <... memfd_create resumed>) = 3 [pid 4038] ioctl(4, LOOP_SET_FD, 3 [pid 4037] <... openat resumed>) = 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4041 [pid 4040] <... setpgid resumed>) = 0 [pid 4039] ftruncate(3, 0 [pid 4038] <... ioctl resumed>) = 0 [pid 4037] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4041 attached [pid 4040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4039] <... ftruncate resumed>) = 0 [pid 4038] mkdir("./file0", 0777 [pid 4037] <... ioctl resumed>) = 0 [pid 4041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4040] <... openat resumed>) = 3 [pid 4039] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4038] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4037] mkdir("./file0", 0777 [pid 4041] <... prctl resumed>) = 0 [pid 4040] write(3, "1000", 4 [pid 4039] <... openat resumed>) = 4 [pid 4038] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4037] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4041] setpgid(0, 0 [pid 4040] <... write resumed>) = 4 [pid 4039] ioctl(4, LOOP_SET_FD, 3 [pid 4038] pipe2( [pid 4037] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4041] <... setpgid resumed>) = 0 [pid 4040] close(3 [pid 4039] <... ioctl resumed>) = 0 [pid 4038] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4037] pipe2( [pid 4041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4040] <... close resumed>) = 0 [pid 4039] mkdir("./file0", 0777 [pid 4038] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4037] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4041] <... openat resumed>) = 3 [pid 4040] memfd_create("syzkaller", 0 [pid 4039] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4038] <... write resumed>) = 21 [pid 4037] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] close(3 [pid 4041] write(3, "1000", 4 [pid 4040] <... memfd_create resumed>) = 3 [pid 4039] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4038] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4037] <... write resumed>) = 21 [pid 3616] <... close resumed>) = 0 [pid 4041] <... write resumed>) = 4 [pid 4040] ftruncate(3, 0 [pid 4039] pipe2( [pid 4037] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4041] close(3 [pid 4040] <... ftruncate resumed>) = 0 [pid 4039] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4041] <... close resumed>) = 0 [pid 4040] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4039] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4042 [pid 4041] memfd_create("syzkaller", 0 [pid 4040] <... openat resumed>) = 4 [pid 4039] <... write resumed>) = 21 [pid 4041] <... memfd_create resumed>) = 3 [pid 4040] ioctl(4, LOOP_SET_FD, 3 [pid 4039] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4042 attached [pid 4041] ftruncate(3, 0 [pid 4040] <... ioctl resumed>) = 0 [pid 4042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4041] <... ftruncate resumed>) = 0 [pid 4040] mkdir("./file0", 0777 [pid 4042] <... prctl resumed>) = 0 [pid 4041] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4040] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4042] setpgid(0, 0 [pid 4041] <... openat resumed>) = 4 [pid 4040] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4042] <... setpgid resumed>) = 0 [pid 4041] ioctl(4, LOOP_SET_FD, 3 [pid 4040] pipe2( [pid 4042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4041] <... ioctl resumed>) = 0 [pid 4040] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4042] <... openat resumed>) = 3 [pid 4041] mkdir("./file0", 0777 [pid 4040] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4042] write(3, "1000", 4 [pid 4041] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4040] <... write resumed>) = 21 [pid 4038] <... mount resumed>) = -1 EIO (Input/output error) [pid 4042] <... write resumed>) = 4 [pid 4041] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4040] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4038] exit_group(0 [pid 4042] close(3 [pid 4041] pipe2( [pid 4038] <... exit_group resumed>) = ? [pid 4042] <... close resumed>) = 0 [pid 4041] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4042] memfd_create("syzkaller", 0 [pid 4041] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4038] +++ exited with 0 +++ [pid 4042] <... memfd_create resumed>) = 3 [pid 4041] <... write resumed>) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4038, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4042] ftruncate(3, 0 [pid 4041] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4042] <... ftruncate resumed>) = 0 [pid 4042] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4042] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4042] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4042] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 [pid 4042] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4042] pipe2([5, 6], 0) = 0 [pid 4042] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4042] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4037] <... mount resumed>) = -1 EIO (Input/output error) [pid 4037] exit_group(0) = ? [pid 4037] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4037, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4043 ./strace-static-x86_64: Process 4043 attached [pid 4041] <... mount resumed>) = -1 EIO (Input/output error) [pid 4041] exit_group(0 [pid 4043] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4041] <... exit_group resumed>) = ? [pid 4043] <... prctl resumed>) = 0 [pid 4043] setpgid(0, 0 [pid 4041] +++ exited with 0 +++ [pid 4043] <... setpgid resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4041, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4043] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4043] write(3, "1000", 4) = 4 [pid 4040] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4044 ./strace-static-x86_64: Process 4044 attached [pid 4043] close(3 [pid 4040] exit_group(0 [pid 4043] <... close resumed>) = 0 [pid 4040] <... exit_group resumed>) = ? [pid 4043] memfd_create("syzkaller", 0 [pid 4040] +++ exited with 0 +++ [pid 4043] <... memfd_create resumed>) = 3 [pid 4043] ftruncate(3, 0 [pid 4039] <... mount resumed>) = -1 EIO (Input/output error) [pid 4043] <... ftruncate resumed>) = 0 [pid 4039] exit_group(0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4040, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4043] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4039] <... exit_group resumed>) = ? [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4044] <... prctl resumed>) = 0 [pid 4043] <... openat resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4044] setpgid(0, 0 [pid 4043] ioctl(4, LOOP_SET_FD, 3 [pid 4039] +++ exited with 0 +++ [pid 4044] <... setpgid resumed>) = 0 [pid 4043] <... ioctl resumed>) = 0 [pid 4044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4043] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4039, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4044] <... openat resumed>) = 3 [pid 4043] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4044] write(3, "1000", 4 [pid 4043] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... openat resumed>) = 3 [pid 4044] <... write resumed>) = 4 [pid 4043] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 4044] close(3 [pid 4043] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] close(3 [pid 4044] <... close resumed>) = 0 [pid 4043] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... close resumed>) = 0 [pid 4044] memfd_create("syzkaller", 0 [pid 4043] <... write resumed>) = 21 [pid 4042] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4044] <... memfd_create resumed>) = 3 [pid 4043] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4042] exit_group(0 [pid 4044] ftruncate(3, 0 [pid 4042] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4045 [pid 4044] <... ftruncate resumed>) = 0 [pid 4044] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4042] +++ exited with 0 +++ [pid 4044] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4042, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4044] <... ioctl resumed>) = 0 [pid 4044] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4044] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4044] pipe2([5, 6], 0) = 0 [pid 4044] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4044] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4044] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4046 ./strace-static-x86_64: Process 4046 attached ./strace-static-x86_64: Process 4045 attached [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4045] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... close resumed>) = 0 [pid 4045] <... prctl resumed>) = 0 [pid 4043] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... ioctl resumed>) = 0 [pid 4046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4045] setpgid(0, 0 [pid 4043] exit_group(0 [pid 3616] close(3 [pid 4046] <... prctl resumed>) = 0 [pid 4045] <... setpgid resumed>) = 0 [pid 4043] <... exit_group resumed>) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4047 [pid 3616] <... close resumed>) = 0 ./strace-static-x86_64: Process 4047 attached [pid 4046] setpgid(0, 0 [pid 4045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4043] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4046] <... setpgid resumed>) = 0 [pid 4045] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4043, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4047] <... prctl resumed>) = 0 [pid 4046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4045] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4048 ./strace-static-x86_64: Process 4048 attached [pid 4047] setpgid(0, 0 [pid 4046] <... openat resumed>) = 3 [pid 4045] <... write resumed>) = 4 [pid 4048] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4047] <... setpgid resumed>) = 0 [pid 4046] write(3, "1000", 4 [pid 4045] close(3 [pid 4048] <... prctl resumed>) = 0 [pid 4047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4046] <... write resumed>) = 4 [pid 4045] <... close resumed>) = 0 [pid 4048] setpgid(0, 0 [pid 4047] <... openat resumed>) = 3 [pid 4046] close(3 [pid 4045] memfd_create("syzkaller", 0 [pid 4048] <... setpgid resumed>) = 0 [pid 4047] write(3, "1000", 4 [pid 4046] <... close resumed>) = 0 [pid 4045] <... memfd_create resumed>) = 3 [pid 4044] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4047] <... write resumed>) = 4 [pid 4046] memfd_create("syzkaller", 0 [pid 4045] ftruncate(3, 0 [pid 4044] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 4048] <... openat resumed>) = 3 [pid 4047] close(3 [pid 4046] <... memfd_create resumed>) = 3 [pid 4045] <... ftruncate resumed>) = 0 [pid 4044] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4048] write(3, "1000", 4 [pid 4047] <... close resumed>) = 0 [pid 4046] ftruncate(3, 0 [pid 4045] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4044] +++ exited with 0 +++ [pid 4048] <... write resumed>) = 4 [pid 4047] memfd_create("syzkaller", 0 [pid 4046] <... ftruncate resumed>) = 0 [pid 4045] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4044, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4048] close(3 [pid 4047] <... memfd_create resumed>) = 3 [pid 4046] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4045] ioctl(4, LOOP_SET_FD, 3 [pid 4048] <... close resumed>) = 0 [pid 4047] ftruncate(3, 0 [pid 4046] <... openat resumed>) = 4 [pid 4045] <... ioctl resumed>) = 0 [pid 4048] memfd_create("syzkaller", 0 [pid 4047] <... ftruncate resumed>) = 0 [pid 4046] ioctl(4, LOOP_SET_FD, 3 [pid 4045] mkdir("./file0", 0777 [pid 4048] <... memfd_create resumed>) = 3 [pid 4047] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4046] <... ioctl resumed>) = 0 [pid 4045] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4048] ftruncate(3, 0 [pid 4047] <... openat resumed>) = 4 [pid 4046] mkdir("./file0", 0777 [pid 4045] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4048] <... ftruncate resumed>) = 0 [pid 4047] ioctl(4, LOOP_SET_FD, 3 [pid 4046] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4045] pipe2( [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4048] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4047] <... ioctl resumed>) = 0 [pid 4046] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4045] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4048] <... openat resumed>) = 4 [pid 4047] mkdir("./file0", 0777 [pid 4046] pipe2( [pid 4045] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4048] ioctl(4, LOOP_SET_FD, 3 [pid 4047] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4046] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4045] <... write resumed>) = 21 [pid 4048] <... ioctl resumed>) = 0 [pid 4047] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4046] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4045] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4048] mkdir("./file0", 0777 [pid 4047] pipe2( [pid 4046] <... write resumed>) = 21 [pid 4048] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4047] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4046] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4048] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4047] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4048] pipe2( [pid 4047] <... write resumed>) = 21 [pid 4048] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4047] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4048] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] <... ioctl resumed>) = 0 [pid 4048] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4049 ./strace-static-x86_64: Process 4049 attached [pid 4049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4046] <... mount resumed>) = -1 EIO (Input/output error) [pid 4046] exit_group(0) = ? [pid 4046] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4046, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 4049] setpgid(0, 0 [pid 4045] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 4049] <... setpgid resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4049] <... openat resumed>) = 3 [pid 4049] write(3, "1000", 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4050 [pid 4049] <... write resumed>) = 4 [pid 4049] close(3) = 0 [pid 4045] exit_group(0 [pid 4049] memfd_create("syzkaller", 0 [pid 4045] <... exit_group resumed>) = ? [pid 4049] <... memfd_create resumed>) = 3 [pid 4049] ftruncate(3, 0) = 0 [pid 4045] +++ exited with 0 +++ [pid 4049] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4045, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4049] <... openat resumed>) = 4 [pid 4049] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4049] mkdir("./file0", 0777 [pid 3615] <... openat resumed>) = 3 [pid 4049] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4049] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4050 attached [pid 4049] pipe2([5, 6], 0) = 0 [pid 4049] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4049] <... write resumed>) = 21 [pid 4047] <... mount resumed>) = -1 EIO (Input/output error) [pid 4050] <... prctl resumed>) = 0 [pid 4049] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4047] exit_group(0 [pid 4050] setpgid(0, 0 [pid 4048] <... mount resumed>) = -1 EIO (Input/output error) [pid 4047] <... exit_group resumed>) = ? [pid 4050] <... setpgid resumed>) = 0 [pid 4050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4047] +++ exited with 0 +++ [pid 4050] <... openat resumed>) = 3 [pid 4048] exit_group(0 [pid 4050] write(3, "1000", 4 [pid 3620] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4047, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4050] <... write resumed>) = 4 [pid 4048] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4050] close(3 [pid 3620] <... close resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4050] <... close resumed>) = 0 [pid 4048] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4050] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4048, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4050] <... memfd_create resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4051 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4050] ftruncate(3, 0 [pid 3618] <... openat resumed>) = 3 [pid 4050] <... ftruncate resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4050] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 4050] <... openat resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4050] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4050] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4051 attached [pid 4050] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4050] pipe2( [pid 4051] <... prctl resumed>) = 0 [pid 4050] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4051] setpgid(0, 0 [pid 4050] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4051] <... setpgid resumed>) = 0 [pid 4050] <... write resumed>) = 21 [pid 4051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4050] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4049] <... mount resumed>) = -1 EIO (Input/output error) [pid 4051] <... openat resumed>) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4051] write(3, "1000", 4 [pid 4049] exit_group(0 [pid 3615] close(3 [pid 4051] <... write resumed>) = 4 [pid 3615] <... close resumed>) = 0 [pid 4051] close(3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4051] <... close resumed>) = 0 [pid 4051] memfd_create("syzkaller", 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4052 [pid 4051] <... memfd_create resumed>) = 3 [pid 4051] ftruncate(3, 0) = 0 [pid 4051] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4049] <... exit_group resumed>) = ? [pid 4051] <... openat resumed>) = 4 [pid 4051] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4049] +++ exited with 0 +++ ./strace-static-x86_64: Process 4052 attached [pid 4051] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4049, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4051] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4052] <... prctl resumed>) = 0 [pid 4051] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4052] setpgid(0, 0 [pid 4051] pipe2( [pid 4052] <... setpgid resumed>) = 0 [pid 4051] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4051] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4052] <... openat resumed>) = 3 [pid 4051] <... write resumed>) = 21 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4052] write(3, "1000", 4 [pid 4051] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] close(3 [pid 4052] <... write resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4052] close(3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4052] <... close resumed>) = 0 [pid 4052] memfd_create("syzkaller", 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4053 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4054 [pid 4052] <... memfd_create resumed>) = 3 [pid 4052] ftruncate(3, 0 [pid 4050] <... mount resumed>) = -1 EIO (Input/output error) [pid 4052] <... ftruncate resumed>) = 0 [pid 4052] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4052] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4052] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4052] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4052] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 4054 attached [pid 4052] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4052] <... write resumed>) = 21 [pid 4054] <... prctl resumed>) = 0 [pid 4052] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4053 attached [pid 4054] setpgid(0, 0 [pid 4050] exit_group(0 [pid 4054] <... setpgid resumed>) = 0 [pid 4053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4050] <... exit_group resumed>) = ? [pid 4054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4053] <... prctl resumed>) = 0 [pid 4050] +++ exited with 0 +++ [pid 4054] write(3, "1000", 4 [pid 4053] setpgid(0, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4050, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4054] <... write resumed>) = 4 [pid 4053] <... setpgid resumed>) = 0 [pid 4054] close(3 [pid 4053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4051] <... mount resumed>) = -1 EIO (Input/output error) [pid 4054] <... close resumed>) = 0 [pid 4053] <... openat resumed>) = 3 [pid 4051] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4054] memfd_create("syzkaller", 0 [pid 4053] write(3, "1000", 4 [pid 4051] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 4054] <... memfd_create resumed>) = 3 [pid 4053] <... write resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4054] ftruncate(3, 0 [pid 4053] close(3 [pid 4051] +++ exited with 0 +++ [pid 4054] <... ftruncate resumed>) = 0 [pid 4053] <... close resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4051, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4054] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4053] memfd_create("syzkaller", 0 [pid 4054] ioctl(4, LOOP_SET_FD, 3 [pid 4053] <... memfd_create resumed>) = 3 [pid 4054] <... ioctl resumed>) = 0 [pid 4053] ftruncate(3, 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4054] mkdir("./file0", 0777 [pid 4053] <... ftruncate resumed>) = 0 [pid 3617] close(3 [pid 4054] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4053] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4052] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... close resumed>) = 0 [pid 4054] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4053] <... openat resumed>) = 4 [pid 4052] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4054] pipe2( [pid 4053] ioctl(4, LOOP_SET_FD, 3 [pid 4052] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 4054] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4053] <... ioctl resumed>) = 0 [pid 4052] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4055 ./strace-static-x86_64: Process 4055 attached [pid 4054] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4053] mkdir("./file0", 0777 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4052, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4055] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4054] <... write resumed>) = 21 [pid 4053] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4055] <... prctl resumed>) = 0 [pid 4054] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4053] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4055] setpgid(0, 0 [pid 4053] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 4055] <... setpgid resumed>) = 0 [pid 4054] <... mount resumed>) = -1 EIO (Input/output error) [pid 4053] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 4055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4053] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] close(3 [pid 3619] <... close resumed>) = 0 [pid 4055] <... openat resumed>) = 3 [pid 4053] <... write resumed>) = 21 [pid 3620] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4055] write(3, "1000", 4 [pid 4053] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4056 attached [pid 4055] <... write resumed>) = 4 [pid 4054] exit_group(0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4055] close(3 [pid 4054] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4056 [pid 3615] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4057 attached [pid 4057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4056] <... prctl resumed>) = 0 [pid 4055] <... close resumed>) = 0 [pid 4057] <... prctl resumed>) = 0 [pid 4057] setpgid(0, 0) = 0 [pid 4057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4054] +++ exited with 0 +++ [pid 4053] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4057 [pid 4056] setpgid(0, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4055] memfd_create("syzkaller", 0 [pid 4053] exit_group(0) = ? [pid 4056] <... setpgid resumed>) = 0 [pid 4055] <... memfd_create resumed>) = 3 [pid 4053] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4054, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4057] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4053, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4057] write(3, "1000", 4 [pid 4056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4055] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4057] <... write resumed>) = 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4057] close(3) = 0 [pid 4057] memfd_create("syzkaller", 0 [pid 4055] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 4057] <... memfd_create resumed>) = 3 [pid 4055] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 4057] ftruncate(3, 0 [pid 4056] <... openat resumed>) = 3 [pid 4055] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4057] <... ftruncate resumed>) = 0 [pid 4056] write(3, "1000", 4 [pid 4055] ioctl(4, LOOP_SET_FD, 3 [pid 4056] <... write resumed>) = 4 [pid 4057] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4055] <... ioctl resumed>) = 0 [pid 4057] <... openat resumed>) = 4 [pid 4056] close(3 [pid 4055] mkdir("./file0", 0777 [pid 4057] ioctl(4, LOOP_SET_FD, 3 [pid 4056] <... close resumed>) = 0 [pid 4057] <... ioctl resumed>) = 0 [pid 4055] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4057] mkdir("./file0", 0777 [pid 4056] memfd_create("syzkaller", 0 [pid 4057] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4055] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4057] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4056] <... memfd_create resumed>) = 3 [pid 4057] pipe2( [pid 4056] ftruncate(3, 0 [pid 4055] pipe2( [pid 4057] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4056] <... ftruncate resumed>) = 0 [pid 4057] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4056] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4055] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4057] <... write resumed>) = 21 [pid 4056] <... openat resumed>) = 4 [pid 4057] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4056] ioctl(4, LOOP_SET_FD, 3 [pid 4055] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4056] <... ioctl resumed>) = 0 [pid 4055] <... write resumed>) = 21 [pid 4056] mkdir("./file0", 0777 [pid 4055] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4056] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4056] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4056] pipe2([5, 6], 0) = 0 [pid 4056] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4056] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4057] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4057] exit_group(0 [pid 3618] close(3 [pid 4057] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4057] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4058 [pid 3615] close(3 [pid 3616] close(3 [pid 3615] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4057, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4059 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4060 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4059 attached [pid 4059] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4059] setpgid(0, 0) = 0 [pid 4059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4060 attached ) = 3 [pid 4060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4059] write(3, "1000", 4) = 4 [pid 4060] setpgid(0, 0) = 0 [pid 4059] close(3) = 0 [pid 4059] memfd_create("syzkaller", 0 [pid 4060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4058 attached ) = 3 [pid 4059] <... memfd_create resumed>) = 3 [pid 4060] write(3, "1000", 4 [pid 4059] ftruncate(3, 0 [pid 4055] <... mount resumed>) = -1 EIO (Input/output error) [pid 4060] <... write resumed>) = 4 [pid 4059] <... ftruncate resumed>) = 0 [pid 4060] close(3 [pid 4059] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4060] <... close resumed>) = 0 [pid 4059] <... openat resumed>) = 4 [pid 4060] memfd_create("syzkaller", 0 [pid 4059] ioctl(4, LOOP_SET_FD, 3 [pid 4060] <... memfd_create resumed>) = 3 [pid 4059] <... ioctl resumed>) = 0 [pid 4055] exit_group(0 [pid 4060] ftruncate(3, 0 [pid 4059] mkdir("./file0", 0777 [pid 4060] <... ftruncate resumed>) = 0 [pid 4059] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4060] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4059] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4060] <... openat resumed>) = 4 [pid 4059] pipe2( [pid 4060] ioctl(4, LOOP_SET_FD, 3 [pid 4059] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4055] <... exit_group resumed>) = ? [pid 4060] <... ioctl resumed>) = 0 [pid 4059] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4060] mkdir("./file0", 0777 [pid 4059] <... write resumed>) = 21 [pid 4058] <... prctl resumed>) = 0 [pid 4060] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4059] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4058] setpgid(0, 0 [pid 4060] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4058] <... setpgid resumed>) = 0 [pid 4060] pipe2([5, 6], 0) = 0 [pid 4060] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4060] <... write resumed>) = 21 [pid 4055] +++ exited with 0 +++ [pid 4060] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4058] <... openat resumed>) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 4058] write(3, "1000", 4 [pid 3620] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4055, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... close resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4058] <... write resumed>) = 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... restart_syscall resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4061 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4058] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4058] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4058] memfd_create("syzkaller", 0 [pid 4056] <... mount resumed>) = -1 EIO (Input/output error) [pid 4058] <... memfd_create resumed>) = 3 [pid 4058] ftruncate(3, 0) = 0 [pid 4058] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4058] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4061 attached ) = 0 [pid 4058] mkdir("./file0", 0777 [pid 4061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4058] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4056] exit_group(0 [pid 4061] <... prctl resumed>) = 0 [pid 4061] setpgid(0, 0) = 0 [pid 4061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4061] write(3, "1000", 4 [pid 4058] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4061] <... write resumed>) = 4 [pid 4058] pipe2( [pid 4061] close(3 [pid 4058] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4061] <... close resumed>) = 0 [pid 4061] memfd_create("syzkaller", 0 [pid 4058] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4061] <... memfd_create resumed>) = 3 [pid 4056] <... exit_group resumed>) = ? [pid 4061] ftruncate(3, 0 [pid 4058] <... write resumed>) = 21 [pid 4061] <... ftruncate resumed>) = 0 [pid 4061] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4058] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4056] +++ exited with 0 +++ [pid 4061] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4061] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4061] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4061] pipe2([5, 6], 0) = 0 [pid 4061] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4061] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4056, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4062 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4062 attached [pid 4062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4062] setpgid(0, 0) = 0 [pid 4062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4062] write(3, "1000", 4) = 4 [pid 4062] close(3) = 0 [pid 4062] memfd_create("syzkaller", 0) = 3 [pid 4062] ftruncate(3, 0) = 0 [pid 4062] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4062] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4062] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4062] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4062] pipe2([5, 6], 0) = 0 [pid 4062] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4062] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4059] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 4059] exit_group(0 [pid 3619] close(3 [pid 4059] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4059] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4059, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4063 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4063 attached [pid 4060] <... mount resumed>) = -1 EIO (Input/output error) [pid 4060] exit_group(0) = ? [pid 4060] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4060, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4063] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4063] setpgid(0, 0) = 0 [pid 4063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4062] <... mount resumed>) = -1 EIO (Input/output error) [pid 4063] <... openat resumed>) = 3 [pid 4062] exit_group(0 [pid 4063] write(3, "1000", 4 [pid 4062] <... exit_group resumed>) = ? [pid 4062] +++ exited with 0 +++ [pid 4063] <... write resumed>) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4062, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4063] close(3) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4063] memfd_create("syzkaller", 0 [pid 3615] close(3 [pid 4063] <... memfd_create resumed>) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 4063] ftruncate(3, 0 [pid 3617] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4063] <... ftruncate resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4061] <... mount resumed>) = -1 EIO (Input/output error) [pid 4063] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4064 [pid 4061] exit_group(0) = ? [pid 4063] <... openat resumed>) = 4 [pid 4063] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4063] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4061] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4061, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4063] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4063] pipe2([5, 6], 0) = 0 [pid 3616] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4064 attached [pid 4064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4064] setpgid(0, 0) = 0 [pid 4064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4064] write(3, "1000", 4) = 4 [pid 4064] close(3) = 0 [pid 4058] <... mount resumed>) = -1 EIO (Input/output error) [pid 4064] memfd_create("syzkaller", 0 [pid 4058] exit_group(0 [pid 4064] <... memfd_create resumed>) = 3 [pid 4058] <... exit_group resumed>) = ? [pid 4058] +++ exited with 0 +++ [pid 4063] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4058, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4063] <... write resumed>) = 21 [pid 3616] close(3 [pid 4063] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... close resumed>) = 0 [pid 4064] ftruncate(3, 0) = 0 [pid 4064] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4064] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4064] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4064] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4064] pipe2([5, 6], 0) = 0 [pid 4064] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4064] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4065 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4065 attached [pid 4065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4065] setpgid(0, 0) = 0 [pid 4065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4065] write(3, "1000", 4) = 4 [pid 4065] close(3) = 0 [pid 4065] memfd_create("syzkaller", 0) = 3 [pid 4065] ftruncate(3, 0) = 0 [pid 4065] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4065] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4065] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4065] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4065] pipe2([5, 6], 0) = 0 [pid 4065] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4065] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4066 ./strace-static-x86_64: Process 4066 attached [pid 4066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4064] <... mount resumed>) = -1 EIO (Input/output error) [pid 4064] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 4064] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4064] +++ exited with 0 +++ [pid 3618] close(3 [pid 3620] close(3 [pid 3618] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4064, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4067 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4068 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4067 attached [pid 4066] setpgid(0, 0 [pid 4067] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4066] <... setpgid resumed>) = 0 [pid 4067] <... prctl resumed>) = 0 [pid 4067] setpgid(0, 0) = 0 [pid 4066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4068 attached ) = 3 [pid 4066] <... openat resumed>) = 3 [pid 4068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4068] setpgid(0, 0 [pid 4067] write(3, "1000", 4 [pid 4068] <... setpgid resumed>) = 0 [pid 4067] <... write resumed>) = 4 [pid 4068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4067] close(3) = 0 [pid 4066] write(3, "1000", 4 [pid 4068] <... openat resumed>) = 3 [pid 4063] <... mount resumed>) = -1 EIO (Input/output error) [pid 4068] write(3, "1000", 4 [pid 4067] memfd_create("syzkaller", 0 [pid 4066] <... write resumed>) = 4 [pid 4063] exit_group(0 [pid 4068] <... write resumed>) = 4 [pid 4067] <... memfd_create resumed>) = 3 [pid 4066] close(3 [pid 4063] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4068] close(3 [pid 4067] ftruncate(3, 0 [pid 4066] <... close resumed>) = 0 [pid 4063] +++ exited with 0 +++ [pid 4067] <... ftruncate resumed>) = 0 [pid 4067] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3615] close(3 [pid 4068] <... close resumed>) = 0 [pid 4067] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4066] memfd_create("syzkaller", 0 [pid 3615] <... close resumed>) = 0 [pid 4067] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4068] memfd_create("syzkaller", 0 [pid 4067] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4066] <... memfd_create resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4063, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4067] pipe2([5, 6], 0) = 0 [pid 4067] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4067] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4068] <... memfd_create resumed>) = 3 [pid 4066] ftruncate(3, 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4066] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4069 attached [pid 4068] ftruncate(3, 0 [pid 4066] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4068] <... ftruncate resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4066] <... openat resumed>) = 4 [pid 4069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4068] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4066] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4069 [pid 4069] <... prctl resumed>) = 0 [pid 4068] <... openat resumed>) = 4 [pid 4066] <... ioctl resumed>) = 0 [pid 4069] setpgid(0, 0 [pid 4068] ioctl(4, LOOP_SET_FD, 3 [pid 4066] mkdir("./file0", 0777 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4068] <... ioctl resumed>) = 0 [pid 4068] mkdir("./file0", 0777 [pid 4066] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4068] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4066] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4068] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4068] pipe2( [pid 4066] pipe2( [pid 4069] <... setpgid resumed>) = 0 [pid 4068] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4066] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4068] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4066] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4068] <... write resumed>) = 21 [pid 4068] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4066] <... write resumed>) = 21 [pid 4069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4066] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4069] <... openat resumed>) = 3 [pid 4069] write(3, "1000", 4) = 4 [pid 4069] close(3) = 0 [pid 4069] memfd_create("syzkaller", 0) = 3 [pid 4069] ftruncate(3, 0) = 0 [pid 4069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4065] <... mount resumed>) = -1 EIO (Input/output error) [pid 4069] <... openat resumed>) = 4 [pid 4065] exit_group(0 [pid 4069] ioctl(4, LOOP_SET_FD, 3 [pid 4067] <... mount resumed>) = -1 EIO (Input/output error) [pid 4065] <... exit_group resumed>) = ? [pid 4069] <... ioctl resumed>) = 0 [pid 4067] exit_group(0 [pid 4065] +++ exited with 0 +++ [pid 4067] <... exit_group resumed>) = ? [pid 4069] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4067] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4065, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4069] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4067, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4069] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4069] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4069] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4069] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 4068] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] close(3 [pid 4068] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 4068] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4068] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4070 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4068, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4070 attached [pid 4070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... ioctl resumed>) = 0 [pid 4066] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4071 ./strace-static-x86_64: Process 4071 attached [pid 4071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4070] <... prctl resumed>) = 0 [pid 4066] exit_group(0 [pid 4070] setpgid(0, 0 [pid 4066] <... exit_group resumed>) = ? [pid 4070] <... setpgid resumed>) = 0 [pid 4066] +++ exited with 0 +++ [pid 4071] setpgid(0, 0 [pid 4070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4066, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4071] <... setpgid resumed>) = 0 [pid 4070] <... openat resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4070] write(3, "1000", 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4071] <... openat resumed>) = 3 [pid 4070] <... write resumed>) = 4 [pid 4069] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4071] write(3, "1000", 4 [pid 4070] close(3 [pid 4069] exit_group(0 [pid 3620] close(3 [pid 3618] close(3 [pid 4071] <... write resumed>) = 4 [pid 4070] <... close resumed>) = 0 [pid 4069] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4071] close(3 [pid 4070] memfd_create("syzkaller", 0 [pid 4069] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 4071] <... close resumed>) = 0 [pid 4070] <... memfd_create resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4069, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4072 attached [pid 4071] memfd_create("syzkaller", 0 [pid 4070] ftruncate(3, 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4072 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4073 [pid 4072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4071] <... memfd_create resumed>) = 3 [pid 4070] <... ftruncate resumed>) = 0 [pid 4072] <... prctl resumed>) = 0 [pid 4071] ftruncate(3, 0 [pid 4070] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4072] setpgid(0, 0 [pid 4071] <... ftruncate resumed>) = 0 [pid 4070] <... openat resumed>) = 4 [pid 4072] <... setpgid resumed>) = 0 [pid 4071] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4070] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4073 attached [pid 4072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4071] <... openat resumed>) = 4 [pid 4070] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4072] <... openat resumed>) = 3 [pid 4071] ioctl(4, LOOP_SET_FD, 3 [pid 4070] mkdir("./file0", 0777 [pid 3615] <... openat resumed>) = 3 [pid 4073] <... prctl resumed>) = 0 [pid 4072] write(3, "1000", 4 [pid 4071] <... ioctl resumed>) = 0 [pid 4070] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4073] setpgid(0, 0 [pid 4072] <... write resumed>) = 4 [pid 4071] mkdir("./file0", 0777 [pid 4070] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4073] <... setpgid resumed>) = 0 [pid 4072] close(3 [pid 4071] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4070] pipe2( [pid 4073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4072] <... close resumed>) = 0 [pid 4071] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4070] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4073] <... openat resumed>) = 3 [pid 4072] memfd_create("syzkaller", 0 [pid 4071] pipe2( [pid 4070] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4073] write(3, "1000", 4 [pid 4072] <... memfd_create resumed>) = 3 [pid 4071] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4070] <... write resumed>) = 21 [pid 4073] <... write resumed>) = 4 [pid 4072] ftruncate(3, 0 [pid 4071] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4070] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4073] close(3 [pid 4072] <... ftruncate resumed>) = 0 [pid 4071] <... write resumed>) = 21 [pid 4073] <... close resumed>) = 0 [pid 4072] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4071] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4073] memfd_create("syzkaller", 0 [pid 4072] <... openat resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 4073] <... memfd_create resumed>) = 3 [pid 4072] ioctl(4, LOOP_SET_FD, 3 [pid 3617] close(3 [pid 4073] ftruncate(3, 0 [pid 4072] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4073] <... ftruncate resumed>) = 0 [pid 4072] mkdir("./file0", 0777 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4073] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4072] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4073] <... openat resumed>) = 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4074 [pid 4073] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4072] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... ioctl resumed>) = 0 [pid 4073] mkdir("./file0", 0777 [pid 4072] pipe2( [pid 3615] close(3 [pid 4073] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4072] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... close resumed>) = 0 [pid 4073] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4072] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4074 attached [pid 4073] pipe2( [pid 4072] <... write resumed>) = 21 [pid 4070] <... mount resumed>) = -1 EIO (Input/output error) [pid 4074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4073] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4072] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4070] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4075 ./strace-static-x86_64: Process 4075 attached [pid 4074] <... prctl resumed>) = 0 [pid 4073] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4070] <... exit_group resumed>) = ? [pid 4075] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4074] setpgid(0, 0 [pid 4073] <... write resumed>) = 21 [pid 4070] +++ exited with 0 +++ [pid 4075] <... prctl resumed>) = 0 [pid 4074] <... setpgid resumed>) = 0 [pid 4073] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4075] setpgid(0, 0 [pid 4074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4070, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4075] <... setpgid resumed>) = 0 [pid 4074] <... openat resumed>) = 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4074] write(3, "1000", 4 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4075] <... openat resumed>) = 3 [pid 4074] <... write resumed>) = 4 [pid 4075] write(3, "1000", 4 [pid 4074] close(3 [pid 4075] <... write resumed>) = 4 [pid 4074] <... close resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4075] close(3 [pid 4074] memfd_create("syzkaller", 0 [pid 3619] <... openat resumed>) = 3 [pid 4075] <... close resumed>) = 0 [pid 4074] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4075] memfd_create("syzkaller", 0 [pid 4074] ftruncate(3, 0 [pid 4075] <... memfd_create resumed>) = 3 [pid 4074] <... ftruncate resumed>) = 0 [pid 4075] ftruncate(3, 0 [pid 4074] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4075] <... ftruncate resumed>) = 0 [pid 4074] <... openat resumed>) = 4 [pid 4075] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4074] ioctl(4, LOOP_SET_FD, 3 [pid 4075] <... openat resumed>) = 4 [pid 4074] <... ioctl resumed>) = 0 [pid 4075] ioctl(4, LOOP_SET_FD, 3 [pid 4074] mkdir("./file0", 0777 [pid 4075] <... ioctl resumed>) = 0 [pid 4074] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4075] mkdir("./file0", 0777 [pid 4074] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4071] <... mount resumed>) = -1 EIO (Input/output error) [pid 4071] exit_group(0) = ? [pid 4071] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4071, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4075] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4074] pipe2( [pid 4075] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4075] pipe2( [pid 4074] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4075] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4073] <... mount resumed>) = -1 EIO (Input/output error) [pid 4075] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4074] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4075] <... write resumed>) = 21 [pid 4074] <... write resumed>) = 21 [pid 4075] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4074] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4073] exit_group(0) = ? [pid 4073] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4073, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4072] <... mount resumed>) = -1 EIO (Input/output error) [pid 4072] exit_group(0) = ? [pid 4072] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4072, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] close(3 [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4077 attached ./strace-static-x86_64: Process 4076 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4077] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4076 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4077 [pid 4077] <... prctl resumed>) = 0 [pid 4076] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4077] setpgid(0, 0 [pid 4076] setpgid(0, 0 [pid 4077] <... setpgid resumed>) = 0 [pid 4076] <... setpgid resumed>) = 0 [pid 4076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4076] <... openat resumed>) = 3 [pid 4077] write(3, "1000", 4 [pid 4076] write(3, "1000", 4 [pid 4077] <... write resumed>) = 4 [pid 4076] <... write resumed>) = 4 [pid 4077] close(3 [pid 4076] close(3 [pid 4077] <... close resumed>) = 0 [pid 4076] <... close resumed>) = 0 [pid 4076] memfd_create("syzkaller", 0 [pid 4077] memfd_create("syzkaller", 0 [pid 4076] <... memfd_create resumed>) = 3 [pid 4077] <... memfd_create resumed>) = 3 [pid 4076] ftruncate(3, 0 [pid 4077] ftruncate(3, 0 [pid 4076] <... ftruncate resumed>) = 0 [pid 4075] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4078 ./strace-static-x86_64: Process 4078 attached [pid 4078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4075] exit_group(0 [pid 4076] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4078] <... prctl resumed>) = 0 [pid 4077] <... ftruncate resumed>) = 0 [pid 4076] <... openat resumed>) = 4 [pid 4075] <... exit_group resumed>) = ? [pid 4074] <... mount resumed>) = -1 EIO (Input/output error) [pid 4078] setpgid(0, 0 [pid 4077] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4076] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4077] <... openat resumed>) = 4 [pid 4075] +++ exited with 0 +++ [pid 4078] <... setpgid resumed>) = 0 [pid 4077] ioctl(4, LOOP_SET_FD, 3 [pid 4076] mkdir("./file0", 0777 [pid 4074] exit_group(0 [pid 4078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4077] <... ioctl resumed>) = 0 [pid 4076] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4074] <... exit_group resumed>) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4075, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4078] <... openat resumed>) = 3 [pid 4077] mkdir("./file0", 0777 [pid 4076] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4078] write(3, "1000", 4 [pid 4077] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4076] pipe2( [pid 4074] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 4078] <... write resumed>) = 4 [pid 4077] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4076] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4074, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4078] close(3 [pid 4077] pipe2( [pid 4076] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... ioctl resumed>) = 0 [pid 4078] <... close resumed>) = 0 [pid 4077] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4076] <... write resumed>) = 21 [pid 3620] close(3 [pid 4078] memfd_create("syzkaller", 0 [pid 4077] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4076] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4078] <... memfd_create resumed>) = 3 [pid 4077] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4077] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4078] ftruncate(3, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4079 [pid 4078] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4078] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4078] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4079 attached [pid 4078] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4078] pipe2( [pid 4079] <... prctl resumed>) = 0 [pid 4078] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4079] setpgid(0, 0 [pid 4078] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4079] <... setpgid resumed>) = 0 [pid 4078] <... write resumed>) = 21 [pid 4079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4078] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4079] <... openat resumed>) = 3 [pid 4079] write(3, "1000", 4) = 4 [pid 4079] close(3) = 0 [pid 4079] memfd_create("syzkaller", 0) = 3 [pid 4079] ftruncate(3, 0) = 0 [pid 4079] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4079] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4079] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4079] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4079] pipe2([5, 6], 0) = 0 [pid 4079] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4079] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4076] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4076] exit_group(0 [pid 3617] close(3 [pid 3615] close(3 [pid 4076] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4076] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4076, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4080 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4081 ./strace-static-x86_64: Process 4081 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4081] setpgid(0, 0) = 0 [pid 4081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4081] write(3, "1000", 4./strace-static-x86_64: Process 4080 attached ) = 4 [pid 4077] <... mount resumed>) = -1 EIO (Input/output error) [pid 4081] close(3 [pid 4080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4077] exit_group(0 [pid 4081] <... close resumed>) = 0 [pid 4080] <... prctl resumed>) = 0 [pid 4077] <... exit_group resumed>) = ? [pid 4081] memfd_create("syzkaller", 0 [pid 4080] setpgid(0, 0 [pid 4081] <... memfd_create resumed>) = 3 [pid 4080] <... setpgid resumed>) = 0 [pid 4078] <... mount resumed>) = -1 EIO (Input/output error) [pid 4077] +++ exited with 0 +++ [pid 4081] ftruncate(3, 0 [pid 4080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4078] exit_group(0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4077, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4081] <... ftruncate resumed>) = 0 [pid 4080] <... openat resumed>) = 3 [pid 4078] <... exit_group resumed>) = ? [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4081] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4080] write(3, "1000", 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4081] <... openat resumed>) = 4 [pid 4080] <... write resumed>) = 4 [pid 4078] +++ exited with 0 +++ [pid 4081] ioctl(4, LOOP_SET_FD, 3 [pid 4080] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4078, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4081] <... ioctl resumed>) = 0 [pid 4080] <... close resumed>) = 0 [pid 3619] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4081] mkdir("./file0", 0777 [pid 4080] memfd_create("syzkaller", 0 [pid 3619] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4081] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4080] <... memfd_create resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4081] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4080] ftruncate(3, 0 [pid 4081] pipe2( [pid 4080] <... ftruncate resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4082 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4082 attached [pid 4081] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4080] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 4082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4081] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4080] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4082] <... prctl resumed>) = 0 [pid 4081] <... write resumed>) = 21 [pid 4080] ioctl(4, LOOP_SET_FD, 3 [pid 4082] setpgid(0, 0 [pid 4081] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4080] <... ioctl resumed>) = 0 [pid 4082] <... setpgid resumed>) = 0 [pid 4080] mkdir("./file0", 0777 [pid 4082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4080] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4079] <... mount resumed>) = -1 EIO (Input/output error) [pid 4082] <... openat resumed>) = 3 [pid 4080] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4079] exit_group(0 [pid 4082] write(3, "1000", 4 [pid 4080] pipe2( [pid 3616] <... ioctl resumed>) = 0 [pid 4082] <... write resumed>) = 4 [pid 4080] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4079] <... exit_group resumed>) = ? [pid 3616] close(3 [pid 4082] close(3 [pid 4080] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... close resumed>) = 0 [pid 4082] <... close resumed>) = 0 [pid 4080] <... write resumed>) = 21 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4082] memfd_create("syzkaller", 0 [pid 4080] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4082] <... memfd_create resumed>) = 3 [pid 4082] ftruncate(3, 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4083 [pid 4082] <... ftruncate resumed>) = 0 [pid 4079] +++ exited with 0 +++ [pid 4082] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4079, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4082] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4082] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4082] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4082] pipe2([5, 6], 0) = 0 [pid 4082] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4082] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4084 ./strace-static-x86_64: Process 4083 attached [pid 4083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4083] setpgid(0, 0) = 0 [pid 4083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 4084 attached [pid 4083] write(3, "1000", 4 [pid 4084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4083] <... write resumed>) = 4 [pid 4084] <... prctl resumed>) = 0 [pid 4084] setpgid(0, 0 [pid 4083] close(3) = 0 [pid 4084] <... setpgid resumed>) = 0 [pid 4084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4083] memfd_create("syzkaller", 0 [pid 4084] <... openat resumed>) = 3 [pid 4083] <... memfd_create resumed>) = 3 [pid 4083] ftruncate(3, 0) = 0 [pid 4083] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4084] write(3, "1000", 4) = 4 [pid 4084] close(3) = 0 [pid 4084] memfd_create("syzkaller", 0 [pid 4083] <... openat resumed>) = 4 [pid 4083] ioctl(4, LOOP_SET_FD, 3 [pid 4084] <... memfd_create resumed>) = 3 [pid 4084] ftruncate(3, 0 [pid 4083] <... ioctl resumed>) = 0 [pid 4084] <... ftruncate resumed>) = 0 [pid 4084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4083] mkdir("./file0", 0777 [pid 4084] <... openat resumed>) = 4 [pid 4084] ioctl(4, LOOP_SET_FD, 3 [pid 4083] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4084] <... ioctl resumed>) = 0 [pid 4084] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4084] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 4084] pipe2( [pid 4083] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] close(3 [pid 4084] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4084] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4083] pipe2( [pid 3620] <... close resumed>) = 0 [pid 4084] <... write resumed>) = 21 [pid 4084] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4083] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4085 attached [pid 4081] <... mount resumed>) = -1 EIO (Input/output error) [pid 4083] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4081] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4085 [pid 4083] <... write resumed>) = 21 [pid 4083] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4081] <... exit_group resumed>) = ? [pid 4085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4081] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4081, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4085] <... prctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4085] setpgid(0, 0 [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4085] <... setpgid resumed>) = 0 [pid 4085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4085] write(3, "1000", 4) = 4 [pid 4085] close(3) = 0 [pid 4080] <... mount resumed>) = -1 EIO (Input/output error) [pid 4080] exit_group(0) = ? [pid 4085] memfd_create("syzkaller", 0 [pid 4080] +++ exited with 0 +++ [pid 4085] <... memfd_create resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4080, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4085] ftruncate(3, 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4085] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4085] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4085] ioctl(4, LOOP_SET_FD, 3 [pid 4082] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] close(3 [pid 4085] <... ioctl resumed>) = 0 [pid 4082] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 4085] mkdir("./file0", 0777 [pid 4082] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4085] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4084] <... mount resumed>) = -1 EIO (Input/output error) [pid 4082] +++ exited with 0 +++ [pid 4085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4084] exit_group(0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4082, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4086 ./strace-static-x86_64: Process 4086 attached [pid 4085] pipe2( [pid 4084] <... exit_group resumed>) = ? [pid 4085] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4085] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4084] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4086] <... prctl resumed>) = 0 [pid 4085] <... write resumed>) = 21 [pid 4083] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4084, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4086] setpgid(0, 0 [pid 4085] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4083] exit_group(0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4086] <... setpgid resumed>) = 0 [pid 4083] <... exit_group resumed>) = ? [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] close(3 [pid 4086] <... openat resumed>) = 3 [pid 4083] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 4086] write(3, "1000", 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4083, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4086] <... write resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4086] close(3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4087 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4086] <... close resumed>) = 0 [pid 4086] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4087 attached ) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4086] ftruncate(3, 0 [pid 3616] <... openat resumed>) = 3 [pid 4087] <... prctl resumed>) = 0 [pid 4086] <... ftruncate resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4087] setpgid(0, 0 [pid 4086] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4087] <... setpgid resumed>) = 0 [pid 4086] <... openat resumed>) = 4 [pid 4086] ioctl(4, LOOP_SET_FD, 3 [pid 4087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4086] <... ioctl resumed>) = 0 [pid 4086] mkdir("./file0", 0777 [pid 4087] <... openat resumed>) = 3 [pid 4086] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4085] <... mount resumed>) = -1 EIO (Input/output error) [pid 4087] write(3, "1000", 4 [pid 4086] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4085] exit_group(0 [pid 4087] <... write resumed>) = 4 [pid 4086] pipe2( [pid 4085] <... exit_group resumed>) = ? [pid 4087] close(3 [pid 4086] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4085] +++ exited with 0 +++ [pid 4087] <... close resumed>) = 0 [pid 4086] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4085, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4086] <... write resumed>) = 21 [pid 4087] memfd_create("syzkaller", 0 [pid 4086] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4088 ./strace-static-x86_64: Process 4088 attached [pid 4088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4088] setpgid(0, 0) = 0 [pid 4087] <... memfd_create resumed>) = 3 [pid 4087] ftruncate(3, 0) = 0 [pid 4087] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4087] ioctl(4, LOOP_SET_FD, 3 [pid 4088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4087] <... ioctl resumed>) = 0 [pid 4088] <... openat resumed>) = 3 [pid 4087] mkdir("./file0", 0777 [pid 4088] write(3, "1000", 4 [pid 4087] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4086] <... mount resumed>) = -1 EIO (Input/output error) [pid 4088] <... write resumed>) = 4 [pid 4087] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4086] exit_group(0 [pid 4088] close(3 [pid 4087] pipe2( [pid 4086] <... exit_group resumed>) = ? [pid 4088] <... close resumed>) = 0 [pid 4087] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4088] memfd_create("syzkaller", 0 [pid 4087] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4086] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4088] <... memfd_create resumed>) = 3 [pid 4087] <... write resumed>) = 21 [pid 3620] close(3 [pid 3618] close(3 [pid 3616] close(3 [pid 4088] ftruncate(3, 0 [pid 4087] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4086, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4088] <... ftruncate resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4088] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... restart_syscall resumed>) = 0 [pid 4088] <... openat resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4089 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4090 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4091 [pid 4088] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4088] mkdir("./file0", 0777 [pid 3615] <... openat resumed>) = 3 [pid 4088] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4088] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4088] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 4090 attached [pid 4088] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4088] <... write resumed>) = 21 [pid 4090] <... prctl resumed>) = 0 [pid 4088] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4090] setpgid(0, 0) = 0 [pid 4090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4090] write(3, "1000", 4) = 4 [pid 4090] close(3) = 0 [pid 4090] memfd_create("syzkaller", 0) = 3 [pid 4090] ftruncate(3, 0) = 0 [pid 4090] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4090] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4091 attached ./strace-static-x86_64: Process 4089 attached ) = 0 [pid 4087] <... mount resumed>) = -1 EIO (Input/output error) [pid 4091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4090] mkdir("./file0", 0777 [pid 4089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4087] exit_group(0 [pid 4091] <... prctl resumed>) = 0 [pid 4090] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4089] <... prctl resumed>) = 0 [pid 4087] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4091] setpgid(0, 0 [pid 4090] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4089] setpgid(0, 0 [pid 3615] close(3 [pid 4091] <... setpgid resumed>) = 0 [pid 4090] pipe2( [pid 4089] <... setpgid resumed>) = 0 [pid 4087] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 4091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4090] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4091] <... openat resumed>) = 3 [pid 4090] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4089] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4087, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4091] write(3, "1000", 4 [pid 4090] <... write resumed>) = 21 [pid 4089] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4092 ./strace-static-x86_64: Process 4092 attached [pid 4091] <... write resumed>) = 4 [pid 4090] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4089] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4091] close(3 [pid 4089] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4092] <... prctl resumed>) = 0 [pid 4091] <... close resumed>) = 0 [pid 4089] <... close resumed>) = 0 [pid 4092] setpgid(0, 0 [pid 4091] memfd_create("syzkaller", 0 [pid 4089] memfd_create("syzkaller", 0 [pid 4092] <... setpgid resumed>) = 0 [pid 4091] <... memfd_create resumed>) = 3 [pid 4089] <... memfd_create resumed>) = 3 [pid 4088] <... mount resumed>) = -1 EIO (Input/output error) [pid 4092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4091] ftruncate(3, 0 [pid 4089] ftruncate(3, 0 [pid 4088] exit_group(0 [pid 4092] <... openat resumed>) = 3 [pid 4091] <... ftruncate resumed>) = 0 [pid 4089] <... ftruncate resumed>) = 0 [pid 4088] <... exit_group resumed>) = ? [pid 4092] write(3, "1000", 4 [pid 4091] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4089] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4088] +++ exited with 0 +++ [pid 4092] <... write resumed>) = 4 [pid 4091] <... openat resumed>) = 4 [pid 4089] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4088, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4092] close(3 [pid 4091] ioctl(4, LOOP_SET_FD, 3 [pid 4089] ioctl(4, LOOP_SET_FD, 3 [pid 4092] <... close resumed>) = 0 [pid 4091] <... ioctl resumed>) = 0 [pid 4089] <... ioctl resumed>) = 0 [pid 4092] memfd_create("syzkaller", 0 [pid 4091] mkdir("./file0", 0777 [pid 4090] <... mount resumed>) = -1 EIO (Input/output error) [pid 4089] mkdir("./file0", 0777 [pid 4092] <... memfd_create resumed>) = 3 [pid 4091] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4090] exit_group(0 [pid 4089] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4092] ftruncate(3, 0 [pid 4091] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4090] <... exit_group resumed>) = ? [pid 4089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4092] <... ftruncate resumed>) = 0 [pid 4091] pipe2( [pid 4090] +++ exited with 0 +++ [pid 4089] pipe2( [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 4092] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4091] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4089] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4090, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] close(3 [pid 4092] <... openat resumed>) = 4 [pid 4091] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4089] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 4092] ioctl(4, LOOP_SET_FD, 3 [pid 4091] <... write resumed>) = 21 [pid 4089] <... write resumed>) = 21 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4092] <... ioctl resumed>) = 0 [pid 4091] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4089] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4092] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4093 [pid 4092] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4092] pipe2([5, 6], 0) = 0 [pid 4092] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4092] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4093 attached [pid 4093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4094 ./strace-static-x86_64: Process 4094 attached [pid 4094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4093] setpgid(0, 0 [pid 4089] <... mount resumed>) = -1 EIO (Input/output error) [pid 4094] <... prctl resumed>) = 0 [pid 4094] setpgid(0, 0) = 0 [pid 4094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4094] write(3, "1000", 4) = 4 [pid 4094] close(3) = 0 [pid 4094] memfd_create("syzkaller", 0) = 3 [pid 4093] <... setpgid resumed>) = 0 [pid 4091] <... mount resumed>) = -1 EIO (Input/output error) [pid 4089] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 4094] ftruncate(3, 0 [pid 4093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4091] exit_group(0 [pid 4089] <... exit_group resumed>) = ? [pid 3618] close(3 [pid 4094] <... ftruncate resumed>) = 0 [pid 4093] <... openat resumed>) = 3 [pid 4092] <... mount resumed>) = -1 EIO (Input/output error) [pid 4091] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4094] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4093] write(3, "1000", 4 [pid 4089] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4094] <... openat resumed>) = 4 [pid 4093] <... write resumed>) = 4 [pid 4092] exit_group(0 [pid 4091] +++ exited with 0 +++ [pid 4094] ioctl(4, LOOP_SET_FD, 3 [pid 4093] close(3 [pid 4092] <... exit_group resumed>) = ? [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4089, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4095 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4091, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4094] <... ioctl resumed>) = 0 [pid 4093] <... close resumed>) = 0 [pid 4092] +++ exited with 0 +++ [pid 3620] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4095 attached [pid 4094] mkdir("./file0", 0777 [pid 4093] memfd_create("syzkaller", 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4092, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4094] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4093] <... memfd_create resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4095] <... prctl resumed>) = 0 [pid 4094] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4093] ftruncate(3, 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4095] setpgid(0, 0 [pid 4094] pipe2( [pid 4093] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4095] <... setpgid resumed>) = 0 [pid 4094] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4093] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4094] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4093] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4095] <... openat resumed>) = 3 [pid 4094] <... write resumed>) = 21 [pid 4093] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... openat resumed>) = 3 [pid 4095] write(3, "1000", 4 [pid 4094] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4093] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4095] <... write resumed>) = 4 [pid 4093] mkdir("./file0", 0777 [pid 4095] close(3 [pid 4093] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4095] <... close resumed>) = 0 [pid 4093] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4095] memfd_create("syzkaller", 0 [pid 4093] pipe2( [pid 4095] <... memfd_create resumed>) = 3 [pid 4093] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4095] ftruncate(3, 0 [pid 4093] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4095] <... ftruncate resumed>) = 0 [pid 4093] <... write resumed>) = 21 [pid 4095] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4093] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4095] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4095] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4095] pipe2([5, 6], 0) = 0 [pid 4095] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4095] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4094] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4094] exit_group(0 [pid 3620] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 4094] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4094] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4097 attached ./strace-static-x86_64: Process 4098 attached ./strace-static-x86_64: Process 4096 attached [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4096 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4094, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4097 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4098 [pid 4098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4098] <... prctl resumed>) = 0 [pid 4097] <... prctl resumed>) = 0 [pid 4096] <... prctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4098] setpgid(0, 0 [pid 4097] setpgid(0, 0 [pid 4096] setpgid(0, 0 [pid 4098] <... setpgid resumed>) = 0 [pid 4097] <... setpgid resumed>) = 0 [pid 4096] <... setpgid resumed>) = 0 [pid 4098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4098] <... openat resumed>) = 3 [pid 4097] <... openat resumed>) = 3 [pid 4096] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 4098] write(3, "1000", 4 [pid 4097] write(3, "1000", 4 [pid 4096] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4098] <... write resumed>) = 4 [pid 4097] <... write resumed>) = 4 [pid 4096] <... write resumed>) = 4 [pid 4098] close(3 [pid 4097] close(3 [pid 4096] close(3 [pid 4098] <... close resumed>) = 0 [pid 4097] <... close resumed>) = 0 [pid 4096] <... close resumed>) = 0 [pid 4098] memfd_create("syzkaller", 0 [pid 4097] memfd_create("syzkaller", 0 [pid 4096] memfd_create("syzkaller", 0 [pid 4097] <... memfd_create resumed>) = 3 [pid 4096] <... memfd_create resumed>) = 3 [pid 4093] <... mount resumed>) = -1 EIO (Input/output error) [pid 4093] exit_group(0 [pid 4098] <... memfd_create resumed>) = 3 [pid 4097] ftruncate(3, 0 [pid 4096] ftruncate(3, 0 [pid 4093] <... exit_group resumed>) = ? [pid 4098] ftruncate(3, 0 [pid 4097] <... ftruncate resumed>) = 0 [pid 4096] <... ftruncate resumed>) = 0 [pid 4098] <... ftruncate resumed>) = 0 [pid 4097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4096] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4093] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4093, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4098] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4097] <... openat resumed>) = 4 [pid 4096] <... openat resumed>) = 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4098] <... openat resumed>) = 4 [pid 4097] ioctl(4, LOOP_SET_FD, 3 [pid 4096] ioctl(4, LOOP_SET_FD, 3 [pid 4098] ioctl(4, LOOP_SET_FD, 3 [pid 4097] <... ioctl resumed>) = 0 [pid 4096] <... ioctl resumed>) = 0 [pid 4098] <... ioctl resumed>) = 0 [pid 4097] mkdir("./file0", 0777 [pid 4096] mkdir("./file0", 0777 [pid 4095] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4098] mkdir("./file0", 0777 [pid 4097] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4096] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4095] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 4098] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4097] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4096] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4095] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4098] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4097] pipe2( [pid 4096] pipe2( [pid 4098] pipe2( [pid 4097] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4096] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4095] +++ exited with 0 +++ [pid 4098] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4097] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4096] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4095, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4098] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4097] <... write resumed>) = 21 [pid 4096] <... write resumed>) = 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4098] <... write resumed>) = 21 [pid 4097] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4096] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... restart_syscall resumed>) = 0 [pid 4098] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4099 ./strace-static-x86_64: Process 4099 attached [pid 4099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4099] setpgid(0, 0) = 0 [pid 4099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4099] write(3, "1000", 4) = 4 [pid 4099] close(3) = 0 [pid 4099] memfd_create("syzkaller", 0) = 3 [pid 4099] ftruncate(3, 0) = 0 [pid 4099] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4099] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4099] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4099] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4099] pipe2( [pid 4096] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4099] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] close(3 [pid 4099] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... close resumed>) = 0 [pid 4099] <... write resumed>) = 21 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4099] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4100 ./strace-static-x86_64: Process 4100 attached [pid 4100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4100] setpgid(0, 0) = 0 [pid 4100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4096] exit_group(0 [pid 4100] <... openat resumed>) = 3 [pid 4096] <... exit_group resumed>) = ? [pid 4100] write(3, "1000", 4 [pid 3618] <... ioctl resumed>) = 0 [pid 4100] <... write resumed>) = 4 [pid 3618] close(3 [pid 4100] close(3 [pid 3618] <... close resumed>) = 0 [pid 4100] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4100] memfd_create("syzkaller", 0) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4101 [pid 4100] ftruncate(3, 0) = 0 [pid 4096] +++ exited with 0 +++ [pid 4098] <... mount resumed>) = -1 EIO (Input/output error) [pid 4100] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4098] exit_group(0 [pid 4100] <... openat resumed>) = 4 [pid 4098] <... exit_group resumed>) = ? [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4096, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4100] ioctl(4, LOOP_SET_FD, 3 [pid 4097] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4100] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4100] mkdir("./file0", 0777 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4100] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4100] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4101 attached [pid 4100] pipe2( [pid 4101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4100] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4098] +++ exited with 0 +++ [pid 4097] exit_group(0 [pid 4101] <... prctl resumed>) = 0 [pid 4100] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4098, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4101] setpgid(0, 0 [pid 4100] <... write resumed>) = 21 [pid 4101] <... setpgid resumed>) = 0 [pid 4100] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4097] <... exit_group resumed>) = ? [pid 4101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4101] <... openat resumed>) = 3 [pid 4097] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 4101] write(3, "1000", 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4097, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4101] <... write resumed>) = 4 [pid 4101] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4101] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 4101] <... memfd_create resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4101] ftruncate(3, 0) = 0 [pid 4101] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4101] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4101] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 4101] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4101] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4101] pipe2( [pid 4099] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4103 attached [pid 4101] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4099] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4102 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4103 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4104 [pid 4103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4101] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4099] <... exit_group resumed>) = ? [pid 4103] <... prctl resumed>) = 0 [pid 4101] <... write resumed>) = 21 [pid 4103] setpgid(0, 0 [pid 4101] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4099] +++ exited with 0 +++ ./strace-static-x86_64: Process 4104 attached ./strace-static-x86_64: Process 4102 attached [pid 4103] <... setpgid resumed>) = 0 [pid 4100] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4099, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4100] exit_group(0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4104] <... prctl resumed>) = 0 [pid 4102] <... prctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4104] setpgid(0, 0 [pid 4103] <... openat resumed>) = 3 [pid 4102] setpgid(0, 0 [pid 4100] <... exit_group resumed>) = ? [pid 4104] <... setpgid resumed>) = 0 [pid 4103] write(3, "1000", 4 [pid 4102] <... setpgid resumed>) = 0 [pid 4104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4103] <... write resumed>) = 4 [pid 4102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4100] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4104] <... openat resumed>) = 3 [pid 4103] close(3 [pid 4102] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4100, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4104] write(3, "1000", 4 [pid 4102] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4103] <... close resumed>) = 0 [pid 4104] <... write resumed>) = 4 [pid 4102] <... write resumed>) = 4 [pid 4101] <... mount resumed>) = -1 EIO (Input/output error) [pid 4104] close(3 [pid 4103] memfd_create("syzkaller", 0 [pid 4102] close(3 [pid 4101] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4104] <... close resumed>) = 0 [pid 4103] <... memfd_create resumed>) = 3 [pid 4102] <... close resumed>) = 0 [pid 4101] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 4104] memfd_create("syzkaller", 0 [pid 4103] ftruncate(3, 0 [pid 4102] memfd_create("syzkaller", 0 [pid 4101] +++ exited with 0 +++ [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4104] <... memfd_create resumed>) = 3 [pid 4103] <... ftruncate resumed>) = 0 [pid 4102] <... memfd_create resumed>) = 3 [pid 4104] ftruncate(3, 0 [pid 4103] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4102] ftruncate(3, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4101, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4104] <... ftruncate resumed>) = 0 [pid 4103] <... openat resumed>) = 4 [pid 4102] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4104] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4103] ioctl(4, LOOP_SET_FD, 3 [pid 4102] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 4104] <... openat resumed>) = 4 [pid 4103] <... ioctl resumed>) = 0 [pid 4102] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4104] ioctl(4, LOOP_SET_FD, 3 [pid 4103] mkdir("./file0", 0777 [pid 4102] ioctl(4, LOOP_SET_FD, 3 [pid 4104] <... ioctl resumed>) = 0 [pid 4103] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4102] <... ioctl resumed>) = 0 [pid 4104] mkdir("./file0", 0777 [pid 4103] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4102] mkdir("./file0", 0777 [pid 4104] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4103] pipe2( [pid 4102] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4104] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4103] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4102] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4104] pipe2( [pid 4103] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4102] pipe2( [pid 4104] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4103] <... write resumed>) = 21 [pid 4102] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4104] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4103] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4102] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4104] <... write resumed>) = 21 [pid 4102] <... write resumed>) = 21 [pid 4104] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4102] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3617] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4107 attached [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4105 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4106 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4107 [pid 4107] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4106 attached [pid 4106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4106] setpgid(0, 0) = 0 [pid 4106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4106] write(3, "1000", 4) = 4 [pid 4106] close(3) = 0 [pid 4106] memfd_create("syzkaller", 0) = 3 [pid 4106] ftruncate(3, 0) = 0 [pid 4106] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4106] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4105 attached [pid 4107] <... prctl resumed>) = 0 [pid 4106] <... ioctl resumed>) = 0 [pid 4106] mkdir("./file0", 0777 [pid 4107] setpgid(0, 0) = 0 [pid 4106] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4106] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4105] <... prctl resumed>) = 0 [pid 4107] <... openat resumed>) = 3 [pid 4106] pipe2( [pid 4105] setpgid(0, 0 [pid 4107] write(3, "1000", 4 [pid 4106] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4105] <... setpgid resumed>) = 0 [pid 4106] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4107] <... write resumed>) = 4 [pid 4107] close(3 [pid 4106] <... write resumed>) = 21 [pid 4105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4107] <... close resumed>) = 0 [pid 4106] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4107] memfd_create("syzkaller", 0 [pid 4105] <... openat resumed>) = 3 [pid 4107] <... memfd_create resumed>) = 3 [pid 4105] write(3, "1000", 4 [pid 4107] ftruncate(3, 0 [pid 4105] <... write resumed>) = 4 [pid 4107] <... ftruncate resumed>) = 0 [pid 4105] close(3 [pid 4107] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4105] <... close resumed>) = 0 [pid 4103] <... mount resumed>) = -1 EIO (Input/output error) [pid 4107] <... openat resumed>) = 4 [pid 4105] memfd_create("syzkaller", 0 [pid 4103] exit_group(0 [pid 4107] ioctl(4, LOOP_SET_FD, 3 [pid 4105] <... memfd_create resumed>) = 3 [pid 4103] <... exit_group resumed>) = ? [pid 4107] <... ioctl resumed>) = 0 [pid 4105] ftruncate(3, 0 [pid 4103] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4103, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4107] mkdir("./file0", 0777 [pid 4105] <... ftruncate resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4107] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4105] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4107] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4105] <... openat resumed>) = 4 [pid 4107] pipe2( [pid 4105] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4107] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4105] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4107] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4105] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4107] <... write resumed>) = 21 [pid 4105] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4107] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4105] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4105] pipe2([5, 6], 0) = 0 [pid 4105] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4105] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4106] <... mount resumed>) = -1 EIO (Input/output error) [pid 4106] exit_group(0) = ? [pid 4106] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4106, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4108 ./strace-static-x86_64: Process 4108 attached [pid 4104] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4104] exit_group(0 [pid 4108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] close(3 [pid 4108] <... prctl resumed>) = 0 [pid 4104] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4108] setpgid(0, 0 [pid 4104] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4108] <... setpgid resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4109 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4104, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4108] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4108] write(3, "1000", 4) = 4 [pid 4108] close(3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4108] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4108] memfd_create("syzkaller", 0) = 3 [pid 4108] ftruncate(3, 0 [pid 4102] <... mount resumed>) = -1 EIO (Input/output error) [pid 4102] exit_group(0) = ? [pid 4102] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4102, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4108] <... ftruncate resumed>) = 0 [pid 4108] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4108] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4108] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4108] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4108] pipe2([5, 6], 0) = 0 [pid 4108] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4108] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4109 attached [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3615] close(3 [pid 4109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4109] <... prctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4109] setpgid(0, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4110 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4111 [pid 4109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4105] <... mount resumed>) = -1 EIO (Input/output error) [pid 4109] write(3, "1000", 4 [pid 4105] exit_group(0./strace-static-x86_64: Process 4110 attached [pid 4109] <... write resumed>) = 4 [pid 4105] <... exit_group resumed>) = ? [pid 4109] close(3 [pid 4110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4109] <... close resumed>) = 0 [pid 4105] +++ exited with 0 +++ ./strace-static-x86_64: Process 4111 attached [pid 4110] <... prctl resumed>) = 0 [pid 4109] memfd_create("syzkaller", 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4105, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4110] setpgid(0, 0 [pid 4109] <... memfd_create resumed>) = 3 [pid 4111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4110] <... setpgid resumed>) = 0 [pid 4109] ftruncate(3, 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4109] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4109] <... openat resumed>) = 4 [pid 4111] <... prctl resumed>) = 0 [pid 4110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4109] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4109] mkdir("./file0", 0777 [pid 4111] setpgid(0, 0 [pid 4110] <... openat resumed>) = 3 [pid 4109] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4109] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4110] write(3, "1000", 4 [pid 4109] pipe2([5, 6], 0) = 0 [pid 4110] <... write resumed>) = 4 [pid 4111] <... setpgid resumed>) = 0 [pid 4109] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4110] close(3 [pid 4109] <... write resumed>) = 21 [pid 4111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4110] <... close resumed>) = 0 [pid 4109] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4110] memfd_create("syzkaller", 0 [pid 4111] <... openat resumed>) = 3 [pid 4110] <... memfd_create resumed>) = 3 [pid 4111] write(3, "1000", 4) = 4 [pid 4110] ftruncate(3, 0 [pid 4107] <... mount resumed>) = -1 EIO (Input/output error) [pid 4107] exit_group(0) = ? [pid 4107] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4107, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4111] close(3 [pid 4110] <... ftruncate resumed>) = 0 [pid 4111] <... close resumed>) = 0 [pid 4110] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4111] memfd_create("syzkaller", 0 [pid 4110] <... openat resumed>) = 4 [pid 4110] ioctl(4, LOOP_SET_FD, 3 [pid 4111] <... memfd_create resumed>) = 3 [pid 4111] ftruncate(3, 0 [pid 4110] <... ioctl resumed>) = 0 [pid 4111] <... ftruncate resumed>) = 0 [pid 4110] mkdir("./file0", 0777 [pid 4111] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4110] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4111] <... openat resumed>) = 4 [pid 4110] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4111] ioctl(4, LOOP_SET_FD, 3 [pid 4110] pipe2( [pid 4111] <... ioctl resumed>) = 0 [pid 4110] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4111] mkdir("./file0", 0777 [pid 4110] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4111] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4110] <... write resumed>) = 21 [pid 4111] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4110] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4111] pipe2([5, 6], 0) = 0 [pid 4111] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] <... ioctl resumed>) = 0 [pid 4108] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4112 ./strace-static-x86_64: Process 4112 attached [pid 4112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4112] setpgid(0, 0) = 0 [pid 4112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4112] write(3, "1000", 4 [pid 4111] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4108] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4112] <... write resumed>) = 4 [pid 3617] close(3 [pid 4112] close(3 [pid 3617] <... close resumed>) = 0 [pid 4112] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4112] memfd_create("syzkaller", 0) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4113 [pid 4112] ftruncate(3, 0) = 0 [pid 4112] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4112] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4112] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4108] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4113 attached [pid 4112] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4112] pipe2( [pid 4109] <... mount resumed>) = -1 EIO (Input/output error) [pid 4108] +++ exited with 0 +++ [pid 4113] <... prctl resumed>) = 0 [pid 4112] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4109] exit_group(0 [pid 4112] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4108, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4113] setpgid(0, 0 [pid 4112] <... write resumed>) = 21 [pid 4109] <... exit_group resumed>) = ? [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4112] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... restart_syscall resumed>) = 0 [pid 4109] +++ exited with 0 +++ [pid 4113] <... setpgid resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4109, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4113] <... openat resumed>) = 3 [pid 4110] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4113] write(3, "1000", 4 [pid 4110] exit_group(0 [pid 4113] <... write resumed>) = 4 [pid 4110] <... exit_group resumed>) = ? [pid 4111] <... mount resumed>) = -1 EIO (Input/output error) [pid 4113] close(3 [pid 4111] exit_group(0 [pid 4110] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4110, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4113] <... close resumed>) = 0 [pid 4111] <... exit_group resumed>) = ? [pid 4111] +++ exited with 0 +++ [pid 4113] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4111, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4113] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4113] ftruncate(3, 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4113] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 4113] <... openat resumed>) = 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4113] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4113] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4113] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4113] pipe2([5, 6], 0) = 0 [pid 4113] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4113] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4112] <... mount resumed>) = -1 EIO (Input/output error) [pid 4112] exit_group(0) = ? [pid 4112] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4112, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] close(3 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4114 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4115 ./strace-static-x86_64: Process 4114 attached [pid 4114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4114] setpgid(0, 0) = 0 [pid 4114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3615] close(3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4116 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4117 [pid 4114] <... openat resumed>) = 3 [pid 4114] write(3, "1000", 4) = 4 [pid 4114] close(3) = 0 [pid 4114] memfd_create("syzkaller", 0) = 3 [pid 4114] ftruncate(3, 0) = 0 [pid 4114] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4117 attached ./strace-static-x86_64: Process 4116 attached ./strace-static-x86_64: Process 4115 attached ) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4114] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4118 [pid 4114] <... ioctl resumed>) = 0 [pid 4114] mkdir("./file0", 0777 [pid 4117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4114] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4117] setpgid(0, 0 [pid 4116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4114] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4117] <... setpgid resumed>) = 0 [pid 4113] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4118 attached [pid 4116] <... prctl resumed>) = 0 [pid 4115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4114] pipe2( [pid 4117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4116] setpgid(0, 0 [pid 4114] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4114] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4117] <... openat resumed>) = 3 [pid 4116] <... setpgid resumed>) = 0 [pid 4117] write(3, "1000", 4 [pid 4114] <... write resumed>) = 21 [pid 4113] exit_group(0 [pid 4114] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4118] setpgid(0, 0) = 0 [pid 4118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4117] <... write resumed>) = 4 [pid 4116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4113] <... exit_group resumed>) = ? [pid 4118] <... openat resumed>) = 3 [pid 4117] close(3 [pid 4116] <... openat resumed>) = 3 [pid 4118] write(3, "1000", 4) = 4 [pid 4117] <... close resumed>) = 0 [pid 4116] write(3, "1000", 4 [pid 4118] close(3 [pid 4117] memfd_create("syzkaller", 0 [pid 4116] <... write resumed>) = 4 [pid 4113] +++ exited with 0 +++ [pid 4118] <... close resumed>) = 0 [pid 4117] <... memfd_create resumed>) = 3 [pid 4116] close(3 [pid 4115] <... prctl resumed>) = 0 [pid 4118] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4113, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4118] <... memfd_create resumed>) = 3 [pid 4117] ftruncate(3, 0 [pid 4116] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4118] ftruncate(3, 0 [pid 4117] <... ftruncate resumed>) = 0 [pid 4118] <... ftruncate resumed>) = 0 [pid 4117] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4116] memfd_create("syzkaller", 0 [pid 3617] <... openat resumed>) = 3 [pid 4118] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4117] <... openat resumed>) = 4 [pid 4116] <... memfd_create resumed>) = 3 [pid 4115] setpgid(0, 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4118] <... openat resumed>) = 4 [pid 4117] ioctl(4, LOOP_SET_FD, 3 [pid 4116] ftruncate(3, 0 [pid 4115] <... setpgid resumed>) = 0 [pid 4118] ioctl(4, LOOP_SET_FD, 3 [pid 4117] <... ioctl resumed>) = 0 [pid 4116] <... ftruncate resumed>) = 0 [pid 4118] <... ioctl resumed>) = 0 [pid 4117] mkdir("./file0", 0777 [pid 4116] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4118] mkdir("./file0", 0777 [pid 4117] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4116] <... openat resumed>) = 4 [pid 4118] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4117] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4116] ioctl(4, LOOP_SET_FD, 3 [pid 4115] <... openat resumed>) = 3 [pid 4118] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4117] pipe2( [pid 4116] <... ioctl resumed>) = 0 [pid 4115] write(3, "1000", 4 [pid 4118] pipe2([5, 6], 0) = 0 [pid 4118] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4118] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4117] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4116] mkdir("./file0", 0777 [pid 4115] <... write resumed>) = 4 [pid 4117] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4116] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4115] close(3 [pid 4117] <... write resumed>) = 21 [pid 4116] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4115] <... close resumed>) = 0 [pid 4117] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4116] pipe2( [pid 4115] memfd_create("syzkaller", 0 [pid 4116] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4115] <... memfd_create resumed>) = 3 [pid 4116] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4115] ftruncate(3, 0 [pid 4116] <... write resumed>) = 21 [pid 4115] <... ftruncate resumed>) = 0 [pid 4116] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4115] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4115] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4115] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4115] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4115] pipe2( [pid 4114] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4115] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4115] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4114] exit_group(0 [pid 3617] close(3 [pid 4115] <... write resumed>) = 21 [pid 4114] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4115] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4114] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4114, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4119 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4119 attached [pid 4119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4118] <... mount resumed>) = -1 EIO (Input/output error) [pid 4118] exit_group(0 [pid 4119] <... prctl resumed>) = 0 [pid 4119] setpgid(0, 0) = 0 [pid 4119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4119] write(3, "1000", 4) = 4 [pid 4119] close(3) = 0 [pid 4119] memfd_create("syzkaller", 0 [pid 4118] <... exit_group resumed>) = ? [pid 4117] <... mount resumed>) = -1 EIO (Input/output error) [pid 4119] <... memfd_create resumed>) = 3 [pid 4119] ftruncate(3, 0) = 0 [pid 4118] +++ exited with 0 +++ [pid 4119] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4117] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 4119] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4118, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4119] ioctl(4, LOOP_SET_FD, 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4119] <... ioctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4119] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4119] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4119] pipe2( [pid 3619] <... openat resumed>) = 3 [pid 4119] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4119] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4117] <... exit_group resumed>) = ? [pid 4116] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] close(3 [pid 4119] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4117] +++ exited with 0 +++ [pid 4116] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 4116] <... exit_group resumed>) = ? [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4117, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4120 [pid 4116] +++ exited with 0 +++ [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4116, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4120 attached [pid 4115] <... mount resumed>) = -1 EIO (Input/output error) [pid 4115] exit_group(0) = ? [pid 4120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4115] +++ exited with 0 +++ [pid 4120] <... prctl resumed>) = 0 [pid 4120] setpgid(0, 0) = 0 [pid 4120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4120] write(3, "1000", 4) = 4 [pid 4120] close(3) = 0 [pid 4120] memfd_create("syzkaller", 0) = 3 [pid 4120] ftruncate(3, 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4115, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4120] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4120] <... openat resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4120] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4120] <... ioctl resumed>) = 0 [pid 4120] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3619] <... ioctl resumed>) = 0 [pid 4120] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] close(3 [pid 4120] pipe2( [pid 3619] <... close resumed>) = 0 [pid 4120] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4120] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4120] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4121 ./strace-static-x86_64: Process 4121 attached [pid 4121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4121] setpgid(0, 0) = 0 [pid 4121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4121] write(3, "1000", 4) = 4 [pid 4121] close(3) = 0 [pid 4121] memfd_create("syzkaller", 0) = 3 [pid 4121] ftruncate(3, 0) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4119] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 4121] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4121] <... openat resumed>) = 4 [pid 4119] exit_group(0 [pid 3616] close(3 [pid 3615] close(3 [pid 4121] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4122 [pid 4121] <... ioctl resumed>) = 0 [pid 4119] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4121] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4121] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4121] pipe2([5, 6], 0) = 0 [pid 4119] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4121] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4119, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4121] <... write resumed>) = 21 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4121] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 4123 attached ./strace-static-x86_64: Process 4122 attached [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4123 [pid 4123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4124 [pid 4122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4123] <... prctl resumed>) = 0 [pid 4122] <... prctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4123] setpgid(0, 0 [pid 4122] setpgid(0, 0 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4124 attached [pid 4123] <... setpgid resumed>) = 0 [pid 4122] <... setpgid resumed>) = 0 [pid 4124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4124] setpgid(0, 0 [pid 4122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4124] <... setpgid resumed>) = 0 [pid 4123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4123] <... openat resumed>) = 3 [pid 4122] <... openat resumed>) = 3 [pid 4124] <... openat resumed>) = 3 [pid 4123] write(3, "1000", 4 [pid 4122] write(3, "1000", 4 [pid 4124] write(3, "1000", 4 [pid 4123] <... write resumed>) = 4 [pid 4122] <... write resumed>) = 4 [pid 4124] <... write resumed>) = 4 [pid 4123] close(3 [pid 4122] close(3 [pid 4124] close(3 [pid 4123] <... close resumed>) = 0 [pid 4122] <... close resumed>) = 0 [pid 4124] <... close resumed>) = 0 [pid 4124] memfd_create("syzkaller", 0 [pid 4123] memfd_create("syzkaller", 0 [pid 4122] memfd_create("syzkaller", 0 [pid 4120] <... mount resumed>) = -1 EIO (Input/output error) [pid 4124] <... memfd_create resumed>) = 3 [pid 4123] <... memfd_create resumed>) = 3 [pid 4122] <... memfd_create resumed>) = 3 [pid 4120] exit_group(0 [pid 4124] ftruncate(3, 0 [pid 4120] <... exit_group resumed>) = ? [pid 4124] <... ftruncate resumed>) = 0 [pid 4123] ftruncate(3, 0 [pid 4122] ftruncate(3, 0 [pid 4120] +++ exited with 0 +++ [pid 4124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4123] <... ftruncate resumed>) = 0 [pid 4122] <... ftruncate resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4120, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4124] ioctl(4, LOOP_SET_FD, 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4124] <... ioctl resumed>) = 0 [pid 4123] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4122] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... restart_syscall resumed>) = 0 [pid 4124] mkdir("./file0", 0777 [pid 4123] <... openat resumed>) = 4 [pid 4122] <... openat resumed>) = 4 [pid 4121] <... mount resumed>) = -1 EIO (Input/output error) [pid 4124] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4123] ioctl(4, LOOP_SET_FD, 3 [pid 4122] ioctl(4, LOOP_SET_FD, 3 [pid 4121] exit_group(0 [pid 4124] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4123] <... ioctl resumed>) = 0 [pid 4121] <... exit_group resumed>) = ? [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4124] pipe2( [pid 4123] mkdir("./file0", 0777 [pid 4122] <... ioctl resumed>) = 0 [pid 4121] +++ exited with 0 +++ [pid 3618] <... openat resumed>) = 3 [pid 4124] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4123] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4122] mkdir("./file0", 0777 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4121, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4124] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4123] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4122] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4124] <... write resumed>) = 21 [pid 4123] pipe2( [pid 4122] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4124] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4123] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4122] pipe2( [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 4123] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4122] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4123] <... write resumed>) = 21 [pid 4122] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... openat resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4125 [pid 4123] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4122] <... write resumed>) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4122] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4126 ./strace-static-x86_64: Process 4125 attached [pid 4125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4125] setpgid(0, 0) = 0 [pid 4125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4125] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 4126 attached [pid 4125] close(3) = 0 [pid 4124] <... mount resumed>) = -1 EIO (Input/output error) [pid 4125] memfd_create("syzkaller", 0 [pid 4124] exit_group(0 [pid 4125] <... memfd_create resumed>) = 3 [pid 4124] <... exit_group resumed>) = ? [pid 4125] ftruncate(3, 0 [pid 4124] +++ exited with 0 +++ [pid 4125] <... ftruncate resumed>) = 0 [pid 4125] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4125] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4125] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4125] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4125] pipe2([5, 6], 0) = 0 [pid 4125] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4125] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4124, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4126] setpgid(0, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4126] <... setpgid resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4126] write(3, "1000", 4 [pid 4122] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4126] <... write resumed>) = 4 [pid 4122] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4127 [pid 4126] close(3 [pid 4122] <... exit_group resumed>) = ? [pid 4126] <... close resumed>) = 0 ./strace-static-x86_64: Process 4127 attached [pid 4127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4127] setpgid(0, 0 [pid 4126] memfd_create("syzkaller", 0 [pid 4127] <... setpgid resumed>) = 0 [pid 4127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4126] <... memfd_create resumed>) = 3 [pid 4122] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4122, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4126] ftruncate(3, 0 [pid 4127] write(3, "1000", 4 [pid 4126] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4127] <... write resumed>) = 4 [pid 4127] close(3) = 0 [pid 4127] memfd_create("syzkaller", 0) = 3 [pid 4126] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 4127] ftruncate(3, 0) = 0 [pid 4127] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4127] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4127] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4127] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4127] pipe2([5, 6], 0) = 0 [pid 4127] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4127] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4126] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4126] ioctl(4, LOOP_SET_FD, 3 [pid 4123] <... mount resumed>) = -1 EIO (Input/output error) [pid 4126] <... ioctl resumed>) = 0 [pid 4126] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4123] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4126] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4125] <... mount resumed>) = -1 EIO (Input/output error) [pid 4123] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4128 [pid 4126] pipe2( [pid 4123] +++ exited with 0 +++ [pid 4126] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4126] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4125] exit_group(0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4123, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4126] <... write resumed>) = 21 [pid 4125] <... exit_group resumed>) = ? [pid 4126] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4125] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4125, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4129 ./strace-static-x86_64: Process 4128 attached [pid 4128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4127] <... mount resumed>) = -1 EIO (Input/output error) [pid 4128] <... prctl resumed>) = 0 [pid 4127] exit_group(0 [pid 4128] setpgid(0, 0 [pid 4127] <... exit_group resumed>) = ? [pid 4128] <... setpgid resumed>) = 0 [pid 4127] +++ exited with 0 +++ [pid 4128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4127, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4128] write(3, "1000", 4 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4128] <... write resumed>) = 4 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4128] close(3) = 0 [pid 4128] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4128] <... memfd_create resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 4128] ftruncate(3, 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4128] <... ftruncate resumed>) = 0 [pid 4128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4128] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4128] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4128] pipe2([5, 6], 0) = 0 [pid 4128] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4128] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4129 attached [pid 4129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4129] setpgid(0, 0) = 0 [pid 4129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4129] write(3, "1000", 4) = 4 [pid 4129] close(3) = 0 [pid 4129] memfd_create("syzkaller", 0) = 3 [pid 4129] ftruncate(3, 0) = 0 [pid 4129] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4129] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4129] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4129] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4129] pipe2([5, 6], 0) = 0 [pid 4129] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4129] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4126] <... mount resumed>) = -1 EIO (Input/output error) [pid 4126] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] close(3 [pid 4126] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4130 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4131 [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4130 attached ./strace-static-x86_64: Process 4131 attached [pid 4131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4132 [pid 4130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4131] <... prctl resumed>) = 0 [pid 4130] <... prctl resumed>) = 0 [pid 4131] setpgid(0, 0 [pid 4130] setpgid(0, 0 [pid 4131] <... setpgid resumed>) = 0 [pid 4130] <... setpgid resumed>) = 0 [pid 4131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4131] <... openat resumed>) = 3 [pid 4130] <... openat resumed>) = 3 [pid 4131] write(3, "1000", 4 [pid 4130] write(3, "1000", 4 [pid 4131] <... write resumed>) = 4 [pid 4130] <... write resumed>) = 4 [pid 4131] close(3 [pid 4130] close(3 [pid 4129] <... mount resumed>) = -1 EIO (Input/output error) [pid 4131] <... close resumed>) = 0 [pid 4130] <... close resumed>) = 0 [pid 4129] exit_group(0 [pid 4131] memfd_create("syzkaller", 0 [pid 4130] memfd_create("syzkaller", 0 [pid 4129] <... exit_group resumed>) = ? [pid 4131] <... memfd_create resumed>) = 3 [pid 4130] <... memfd_create resumed>) = 3 [pid 4129] +++ exited with 0 +++ [pid 4131] ftruncate(3, 0 [pid 4130] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4129, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4131] <... ftruncate resumed>) = 0 [pid 4130] <... ftruncate resumed>) = 0 [pid 4131] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4130] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4131] <... openat resumed>) = 4 [pid 4130] <... openat resumed>) = 4 [pid 4131] ioctl(4, LOOP_SET_FD, 3 [pid 4130] ioctl(4, LOOP_SET_FD, 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4131] <... ioctl resumed>) = 0 [pid 4130] <... ioctl resumed>) = 0 [pid 4131] mkdir("./file0", 0777 [pid 4130] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 4131] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4130] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4131] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4130] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4131] pipe2( [pid 4130] pipe2( [pid 4131] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4130] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4131] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4130] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4126] +++ exited with 0 +++ [pid 4131] <... write resumed>) = 21 [pid 4130] <... write resumed>) = 21 [pid 4131] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4130] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4126, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4132 attached [pid 4132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4132] setpgid(0, 0) = 0 [pid 4132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4132] write(3, "1000", 4) = 4 [pid 4132] close(3) = 0 [pid 4132] memfd_create("syzkaller", 0) = 3 [pid 4132] ftruncate(3, 0) = 0 [pid 4128] <... mount resumed>) = -1 EIO (Input/output error) [pid 4132] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4128] exit_group(0 [pid 4132] <... openat resumed>) = 4 [pid 4128] <... exit_group resumed>) = ? [pid 4132] ioctl(4, LOOP_SET_FD, 3 [pid 4128] +++ exited with 0 +++ [pid 4132] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4128, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4132] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4132] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4132] pipe2([5, 6], 0) = 0 [pid 4132] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4132] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4130] <... mount resumed>) = -1 EIO (Input/output error) [pid 4130] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4130] <... exit_group resumed>) = ? [pid 4130] +++ exited with 0 +++ [pid 3620] close(3 [pid 3618] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4130, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4134 attached ./strace-static-x86_64: Process 4133 attached [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4134 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4133 [pid 4133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4133] setpgid(0, 0) = 0 [pid 4133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4133] write(3, "1000", 4) = 4 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4133] close(3) = 0 [pid 4133] memfd_create("syzkaller", 0) = 3 [pid 4133] ftruncate(3, 0) = 0 [pid 4133] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4133] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4133] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4133] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4131] <... mount resumed>) = -1 EIO (Input/output error) [pid 4133] pipe2([5, 6], 0) = 0 [pid 4133] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4133] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4131] exit_group(0) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4131] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4131, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4135 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4134] setpgid(0, 0) = 0 [pid 4134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4135 attached ) = 3 [pid 4135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4134] write(3, "1000", 4 [pid 4135] <... prctl resumed>) = 0 [pid 4135] setpgid(0, 0) = 0 [pid 4134] <... write resumed>) = 4 [pid 4134] close(3 [pid 4135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4134] <... close resumed>) = 0 [pid 4134] memfd_create("syzkaller", 0 [pid 4135] <... openat resumed>) = 3 [pid 4134] <... memfd_create resumed>) = 3 [pid 4135] write(3, "1000", 4 [pid 4134] ftruncate(3, 0 [pid 4135] <... write resumed>) = 4 [pid 4134] <... ftruncate resumed>) = 0 [pid 4135] close(3 [pid 4134] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4135] <... close resumed>) = 0 [pid 4135] memfd_create("syzkaller", 0 [pid 4134] <... openat resumed>) = 4 [pid 4135] <... memfd_create resumed>) = 3 [pid 4134] ioctl(4, LOOP_SET_FD, 3 [pid 4135] ftruncate(3, 0 [pid 4134] <... ioctl resumed>) = 0 [pid 4135] <... ftruncate resumed>) = 0 [pid 4135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4135] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4135] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4135] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4135] pipe2([5, 6], 0) = 0 [pid 4135] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4134] mkdir("./file0", 0777 [pid 4135] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4134] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4132] <... mount resumed>) = -1 EIO (Input/output error) [pid 4134] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4132] exit_group(0 [pid 4134] pipe2( [pid 4132] <... exit_group resumed>) = ? [pid 4134] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4132] +++ exited with 0 +++ [pid 4134] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4132, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4134] <... write resumed>) = 21 [pid 4134] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4133] <... mount resumed>) = -1 EIO (Input/output error) [pid 4135] <... mount resumed>) = -1 EIO (Input/output error) [pid 4133] exit_group(0 [pid 4135] exit_group(0 [pid 4133] <... exit_group resumed>) = ? [pid 4135] <... exit_group resumed>) = ? [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4133] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4133, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4135] +++ exited with 0 +++ [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4135, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4136 attached [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... openat resumed>) = 3 [pid 4136] <... prctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4136] setpgid(0, 0) = 0 [pid 4136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4136] write(3, "1000", 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4136 [pid 4136] <... write resumed>) = 4 [pid 4136] close(3) = 0 [pid 4136] memfd_create("syzkaller", 0) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4137 [pid 4136] ftruncate(3, 0) = 0 [pid 4136] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4136] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 4137 attached [pid 4136] mkdir("./file0", 0777 [pid 4137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4136] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4137] <... prctl resumed>) = 0 [pid 4136] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4137] setpgid(0, 0 [pid 4136] pipe2( [pid 4137] <... setpgid resumed>) = 0 [pid 4136] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4136] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4137] <... openat resumed>) = 3 [pid 4136] <... write resumed>) = 21 [pid 4137] write(3, "1000", 4 [pid 4136] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4137] <... write resumed>) = 4 [pid 4137] close(3) = 0 [pid 4137] memfd_create("syzkaller", 0) = 3 [pid 4137] ftruncate(3, 0) = 0 [pid 4137] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4137] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4137] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4137] pipe2([5, 6], 0) = 0 [pid 4134] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4137] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4134] exit_group(0 [pid 3615] close(3 [pid 4137] <... write resumed>) = 21 [pid 4134] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4137] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4134] +++ exited with 0 +++ [pid 3618] close(3 [pid 3617] close(3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4134, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4138 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4139 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4140 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4140 attached ./strace-static-x86_64: Process 4138 attached [pid 4140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4140] <... prctl resumed>) = 0 [pid 4138] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 4139 attached [pid 4139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4140] setpgid(0, 0 [pid 4138] setpgid(0, 0 [pid 4140] <... setpgid resumed>) = 0 [pid 4138] <... setpgid resumed>) = 0 [pid 4139] <... prctl resumed>) = 0 [pid 4139] setpgid(0, 0) = 0 [pid 4139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4139] <... openat resumed>) = 3 [pid 4138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4140] <... openat resumed>) = 3 [pid 4139] write(3, "1000", 4 [pid 4138] <... openat resumed>) = 3 [pid 4140] write(3, "1000", 4 [pid 4139] <... write resumed>) = 4 [pid 4138] write(3, "1000", 4 [pid 4140] <... write resumed>) = 4 [pid 4139] close(3 [pid 4140] close(3 [pid 4139] <... close resumed>) = 0 [pid 4138] <... write resumed>) = 4 [pid 4140] <... close resumed>) = 0 [pid 4139] memfd_create("syzkaller", 0 [pid 4138] close(3 [pid 4140] memfd_create("syzkaller", 0 [pid 4139] <... memfd_create resumed>) = 3 [pid 4138] <... close resumed>) = 0 [pid 4136] <... mount resumed>) = -1 EIO (Input/output error) [pid 4140] <... memfd_create resumed>) = 3 [pid 4138] memfd_create("syzkaller", 0 [pid 4140] ftruncate(3, 0 [pid 4138] <... memfd_create resumed>) = 3 [pid 4140] <... ftruncate resumed>) = 0 [pid 4138] ftruncate(3, 0 [pid 4140] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4138] <... ftruncate resumed>) = 0 [pid 4140] <... openat resumed>) = 4 [pid 4138] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4140] ioctl(4, LOOP_SET_FD, 3 [pid 4138] <... openat resumed>) = 4 [pid 4140] <... ioctl resumed>) = 0 [pid 4138] ioctl(4, LOOP_SET_FD, 3 [pid 4140] mkdir("./file0", 0777 [pid 4139] ftruncate(3, 0 [pid 4138] <... ioctl resumed>) = 0 [pid 4136] exit_group(0 [pid 4140] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4139] <... ftruncate resumed>) = 0 [pid 4138] mkdir("./file0", 0777 [pid 4136] <... exit_group resumed>) = ? [pid 4140] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4139] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4138] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4140] pipe2( [pid 4139] <... openat resumed>) = 4 [pid 4138] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4136] +++ exited with 0 +++ [pid 4140] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4138] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4136, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4140] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4138] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4140] <... write resumed>) = 21 [pid 4139] ioctl(4, LOOP_SET_FD, 3 [pid 4138] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4140] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4138] <... write resumed>) = 21 [pid 4138] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4139] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4139] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4139] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4137] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4139] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4137] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4139] pipe2( [pid 4137] <... exit_group resumed>) = ? [pid 4139] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4141 [pid 4137] +++ exited with 0 +++ [pid 4139] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4137, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4141 attached [pid 4139] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... restart_syscall resumed>) = 0 [pid 4141] <... prctl resumed>) = 0 [pid 4141] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... openat resumed>) = 3 [pid 4141] <... openat resumed>) = 3 [pid 4140] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4140] exit_group(0) = ? [pid 4141] write(3, "1000", 4 [pid 4140] +++ exited with 0 +++ [pid 4141] <... write resumed>) = 4 [pid 4141] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4140, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 4141] <... close resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4141] memfd_create("syzkaller", 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4141] <... memfd_create resumed>) = 3 [pid 4141] ftruncate(3, 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4141] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4141] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4141] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4141] mkdir("./file0", 0777 [pid 3619] close(3 [pid 4141] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... close resumed>) = 0 [pid 4141] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4141] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4142 ./strace-static-x86_64: Process 4142 attached [pid 4142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4142] setpgid(0, 0 [pid 4141] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4141] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4141] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4142] <... setpgid resumed>) = 0 [pid 4138] <... mount resumed>) = -1 EIO (Input/output error) [pid 4142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4142] write(3, "1000", 4) = 4 [pid 4142] close(3) = 0 [pid 4142] memfd_create("syzkaller", 0) = 3 [pid 4142] ftruncate(3, 0) = 0 [pid 4138] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4142] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4138] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 3616] close(3 [pid 4142] <... openat resumed>) = 4 [pid 4138] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4142] ioctl(4, LOOP_SET_FD, 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4138, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4142] <... ioctl resumed>) = 0 [pid 4142] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4143 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4144 [pid 4142] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4142] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4142] pipe2( [pid 3615] <... openat resumed>) = 3 [pid 4142] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4142] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4139] <... mount resumed>) = -1 EIO (Input/output error) [pid 4142] <... write resumed>) = 21 [pid 4142] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4144 attached [pid 4144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4144] setpgid(0, 0) = 0 [pid 4144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4144] write(3, "1000", 4 [pid 4139] exit_group(0 [pid 4144] <... write resumed>) = 4 [pid 4144] close(3) = 0 [pid 4144] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4143 attached ) = 3 [pid 4141] <... mount resumed>) = -1 EIO (Input/output error) [pid 4139] <... exit_group resumed>) = ? [pid 4144] ftruncate(3, 0 [pid 4143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4141] exit_group(0 [pid 4144] <... ftruncate resumed>) = 0 [pid 4143] <... prctl resumed>) = 0 [pid 4141] <... exit_group resumed>) = ? [pid 4139] +++ exited with 0 +++ [pid 4144] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4143] setpgid(0, 0 [pid 4144] <... openat resumed>) = 4 [pid 4143] <... setpgid resumed>) = 0 [pid 4141] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4139, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4144] ioctl(4, LOOP_SET_FD, 3 [pid 4143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4141, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4144] <... ioctl resumed>) = 0 [pid 4143] <... openat resumed>) = 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4144] mkdir("./file0", 0777 [pid 4143] write(3, "1000", 4 [pid 4144] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4143] <... write resumed>) = 4 [pid 4144] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4143] close(3 [pid 4142] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4144] pipe2( [pid 4143] <... close resumed>) = 0 [pid 4142] exit_group(0 [pid 3618] <... openat resumed>) = 3 [pid 4144] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4143] memfd_create("syzkaller", 0 [pid 4142] <... exit_group resumed>) = ? [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4144] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4143] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4144] <... write resumed>) = 21 [pid 4143] ftruncate(3, 0 [pid 4142] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 4144] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4143] <... ftruncate resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4142, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3 [pid 4143] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3615] <... close resumed>) = 0 [pid 4143] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4143] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4143] mkdir("./file0", 0777 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4143] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4145 attached [pid 4143] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4145 [pid 4145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4143] pipe2( [pid 4145] <... prctl resumed>) = 0 [pid 4143] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4145] setpgid(0, 0 [pid 4143] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4145] <... setpgid resumed>) = 0 [pid 4143] <... write resumed>) = 21 [pid 4145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4143] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4145] <... openat resumed>) = 3 [pid 4145] write(3, "1000", 4) = 4 [pid 4145] close(3) = 0 [pid 4145] memfd_create("syzkaller", 0) = 3 [pid 4145] ftruncate(3, 0) = 0 [pid 4145] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4144] <... mount resumed>) = -1 EIO (Input/output error) [pid 4145] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4145] mkdir("./file0", 0777 [pid 4144] exit_group(0 [pid 3620] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 4145] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4144] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3618] close(3 [pid 4145] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4145] pipe2([5, 6], 0) = 0 [pid 4145] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4145] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4144] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4144, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4146 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4147 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4146 attached [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4148 [pid 4146] <... prctl resumed>) = 0 [pid 4146] setpgid(0, 0) = 0 [pid 4146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4147 attached ) = 3 [pid 4146] write(3, "1000", 4) = 4 [pid 4146] close(3) = 0 [pid 4146] memfd_create("syzkaller", 0) = 3 [pid 4146] ftruncate(3, 0) = 0 [pid 4146] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4146] mkdir("./file0", 0777./strace-static-x86_64: Process 4148 attached [pid 4147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4143] <... mount resumed>) = -1 EIO (Input/output error) [pid 4146] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4146] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4146] pipe2([5, 6], 0) = 0 [pid 4146] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4146] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4147] <... prctl resumed>) = 0 [pid 4143] exit_group(0 [pid 4147] setpgid(0, 0) = 0 [pid 4143] <... exit_group resumed>) = ? [pid 4148] <... prctl resumed>) = 0 [pid 4147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4143] +++ exited with 0 +++ [pid 4148] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4143, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4147] <... openat resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4148] <... setpgid resumed>) = 0 [pid 4147] write(3, "1000", 4 [pid 4148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4147] <... write resumed>) = 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4148] <... openat resumed>) = 3 [pid 4147] close(3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4148] write(3, "1000", 4) = 4 [pid 4147] memfd_create("syzkaller", 0 [pid 4145] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 4146] <... mount resumed>) = -1 EIO (Input/output error) [pid 4145] exit_group(0) = ? [pid 4148] close(3 [pid 4147] <... memfd_create resumed>) = 3 [pid 4146] exit_group(0 [pid 4145] +++ exited with 0 +++ [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 4148] <... close resumed>) = 0 [pid 4147] ftruncate(3, 0 [pid 3616] <... close resumed>) = 0 [pid 4147] <... ftruncate resumed>) = 0 [pid 4148] memfd_create("syzkaller", 0 [pid 4147] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4145, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4148] <... memfd_create resumed>) = 3 [pid 4147] <... openat resumed>) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4148] ftruncate(3, 0 [pid 4147] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4149 [pid 4148] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4147] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4148] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4147] mkdir("./file0", 0777 [pid 4148] <... openat resumed>) = 4 [pid 4147] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4148] ioctl(4, LOOP_SET_FD, 3 [pid 4147] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4148] <... ioctl resumed>) = 0 [pid 4147] pipe2( [pid 4148] mkdir("./file0", 0777 [pid 4147] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4148] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4147] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4148] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4147] <... write resumed>) = 21 [pid 4148] pipe2( [pid 4147] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4146] <... exit_group resumed>) = ? [pid 4148] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4148] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4149 attached [pid 4149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... ioctl resumed>) = 0 [pid 4149] <... prctl resumed>) = 0 [pid 4149] setpgid(0, 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3615] close(3 [pid 4148] <... write resumed>) = 21 [pid 3617] <... close resumed>) = 0 [pid 4148] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 4149] <... setpgid resumed>) = 0 [pid 4149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4149] write(3, "1000", 4) = 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4150 [pid 4149] close(3) = 0 [pid 4149] memfd_create("syzkaller", 0) = 3 [pid 4149] ftruncate(3, 0) = 0 [pid 4149] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4149] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4151 ./strace-static-x86_64: Process 4150 attached [pid 4149] mkdir("./file0", 0777 [pid 4150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4149] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4150] <... prctl resumed>) = 0 [pid 4149] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4150] setpgid(0, 0 [pid 4149] pipe2( [pid 4150] <... setpgid resumed>) = 0 [pid 4149] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4149] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4150] <... openat resumed>) = 3 [pid 4149] <... write resumed>) = 21 [pid 4150] write(3, "1000", 4 [pid 4149] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4150] <... write resumed>) = 4 [pid 4150] close(3) = 0 [pid 4150] memfd_create("syzkaller", 0) = 3 [pid 4150] ftruncate(3, 0) = 0 [pid 4150] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4150] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4151 attached ) = 0 [pid 4146] +++ exited with 0 +++ [pid 4150] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4146, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4150] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4150] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4151] <... prctl resumed>) = 0 [pid 4150] pipe2( [pid 3620] <... restart_syscall resumed>) = 0 [pid 4150] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4150] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4151] setpgid(0, 0 [pid 4150] <... write resumed>) = 21 [pid 4150] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4151] <... setpgid resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4151] write(3, "1000", 4) = 4 [pid 4151] close(3) = 0 [pid 4147] <... mount resumed>) = -1 EIO (Input/output error) [pid 4151] memfd_create("syzkaller", 0) = 3 [pid 4151] ftruncate(3, 0) = 0 [pid 4147] exit_group(0 [pid 4151] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4147] <... exit_group resumed>) = ? [pid 4151] <... openat resumed>) = 4 [pid 4147] +++ exited with 0 +++ [pid 4151] ioctl(4, LOOP_SET_FD, 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4147, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4151] <... ioctl resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4151] mkdir("./file0", 0777 [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4151] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4151] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4151] pipe2([5, 6], 0) = 0 [pid 4151] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4151] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4150] <... mount resumed>) = -1 EIO (Input/output error) [pid 4150] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 4150] <... exit_group resumed>) = ? [pid 4150] +++ exited with 0 +++ [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... ioctl resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4152 [pid 3618] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4150, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4153 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4152 attached [pid 4152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4148] <... mount resumed>) = -1 EIO (Input/output error) [pid 4152] <... prctl resumed>) = 0 [pid 4152] setpgid(0, 0) = 0 [pid 4152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4148] exit_group(0./strace-static-x86_64: Process 4153 attached ) = ? [pid 4153] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4148] +++ exited with 0 +++ [pid 4153] <... prctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4148, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4153] setpgid(0, 0 [pid 4152] <... openat resumed>) = 3 [pid 4153] <... setpgid resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] close(3 [pid 4153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4153] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4153] write(3, "1000", 4) = 4 [pid 4153] close(3 [pid 4152] write(3, "1000", 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4154 [pid 4153] <... close resumed>) = 0 [pid 4153] memfd_create("syzkaller", 0) = 3 [pid 4153] ftruncate(3, 0) = 0 [pid 4153] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4152] <... write resumed>) = 4 ./strace-static-x86_64: Process 4154 attached [pid 4153] <... openat resumed>) = 4 [pid 4153] ioctl(4, LOOP_SET_FD, 3 [pid 4152] close(3 [pid 4153] <... ioctl resumed>) = 0 [pid 4154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4153] mkdir("./file0", 0777 [pid 4154] <... prctl resumed>) = 0 [pid 4154] setpgid(0, 0) = 0 [pid 4154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4153] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4153] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4153] pipe2([5, 6], 0) = 0 [pid 4152] <... close resumed>) = 0 [pid 4153] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4153] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4154] <... openat resumed>) = 3 [pid 4154] write(3, "1000", 4) = 4 [pid 4154] close(3) = 0 [pid 4154] memfd_create("syzkaller", 0) = 3 [pid 4154] ftruncate(3, 0) = 0 [pid 4154] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4152] memfd_create("syzkaller", 0 [pid 4154] <... openat resumed>) = 4 [pid 4154] ioctl(4, LOOP_SET_FD, 3 [pid 4152] <... memfd_create resumed>) = 3 [pid 4152] ftruncate(3, 0) = 0 [pid 4154] <... ioctl resumed>) = 0 [pid 4152] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4154] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4154] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4152] <... openat resumed>) = 4 [pid 4154] pipe2([5, 6], 0) = 0 [pid 4154] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4152] ioctl(4, LOOP_SET_FD, 3 [pid 4154] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4149] <... mount resumed>) = -1 EIO (Input/output error) [pid 4152] <... ioctl resumed>) = 0 [pid 4152] mkdir("./file0", 0777 [pid 4149] exit_group(0 [pid 4152] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4149] <... exit_group resumed>) = ? [pid 4152] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4152] pipe2( [pid 4149] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 4152] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4149, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4152] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 4152] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4155 attached [pid 4152] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4151] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4155 [pid 3616] <... openat resumed>) = 3 [pid 4155] <... prctl resumed>) = 0 [pid 4151] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4155] setpgid(0, 0 [pid 4151] <... exit_group resumed>) = ? [pid 4155] <... setpgid resumed>) = 0 [pid 4155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4151] +++ exited with 0 +++ [pid 4155] write(3, "1000", 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4151, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4155] <... write resumed>) = 4 [pid 4155] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4155] memfd_create("syzkaller", 0 [pid 3615] <... openat resumed>) = 3 [pid 4155] <... memfd_create resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4155] ftruncate(3, 0 [pid 4153] <... mount resumed>) = -1 EIO (Input/output error) [pid 4155] <... ftruncate resumed>) = 0 [pid 4153] exit_group(0 [pid 4155] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4153] <... exit_group resumed>) = ? [pid 4155] <... openat resumed>) = 4 [pid 4153] +++ exited with 0 +++ [pid 4155] ioctl(4, LOOP_SET_FD, 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4153, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4155] <... ioctl resumed>) = 0 [pid 4155] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4155] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4155] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4155] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4155] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4155] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4156 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4157 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4158 ./strace-static-x86_64: Process 4157 attached [pid 4154] <... mount resumed>) = -1 EIO (Input/output error) [pid 4157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4157] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4158 attached [pid 4157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4157] <... openat resumed>) = 3 [pid 4158] <... prctl resumed>) = 0 [pid 4157] write(3, "1000", 4 [pid 4158] setpgid(0, 0 [pid 4157] <... write resumed>) = 4 [pid 4158] <... setpgid resumed>) = 0 [pid 4157] close(3 [pid 4158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4157] <... close resumed>) = 0 [pid 4158] <... openat resumed>) = 3 [pid 4157] memfd_create("syzkaller", 0 [pid 4158] write(3, "1000", 4 [pid 4157] <... memfd_create resumed>) = 3 [pid 4158] <... write resumed>) = 4 [pid 4157] ftruncate(3, 0 [pid 4158] close(3 [pid 4157] <... ftruncate resumed>) = 0 [pid 4158] <... close resumed>) = 0 [pid 4157] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4158] memfd_create("syzkaller", 0 [pid 4157] <... openat resumed>) = 4 [pid 4154] exit_group(0 [pid 4158] <... memfd_create resumed>) = 3 [pid 4157] ioctl(4, LOOP_SET_FD, 3 [pid 4158] ftruncate(3, 0 [pid 4157] <... ioctl resumed>) = 0 [pid 4154] <... exit_group resumed>) = ? [pid 4158] <... ftruncate resumed>) = 0 [pid 4157] mkdir("./file0", 0777 [pid 4158] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4157] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4158] <... openat resumed>) = 4 [pid 4157] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4154] +++ exited with 0 +++ [pid 4158] ioctl(4, LOOP_SET_FD, 3 [pid 4157] pipe2(./strace-static-x86_64: Process 4156 attached [pid 4158] <... ioctl resumed>) = 0 [pid 4157] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4154, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4158] mkdir("./file0", 0777 [pid 4157] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4158] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4157] <... write resumed>) = 21 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4158] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4157] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4158] pipe2( [pid 4156] <... prctl resumed>) = 0 [pid 4158] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4158] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4156] setpgid(0, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4158] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... openat resumed>) = 3 [pid 4156] <... setpgid resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4156] write(3, "1000", 4) = 4 [pid 4156] close(3) = 0 [pid 4156] memfd_create("syzkaller", 0) = 3 [pid 4156] ftruncate(3, 0) = 0 [pid 4156] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4156] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4156] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4156] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4156] pipe2([5, 6], 0) = 0 [pid 4156] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4156] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4155] <... mount resumed>) = -1 EIO (Input/output error) [pid 4155] exit_group(0) = ? [pid 4155] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4155, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4159 ./strace-static-x86_64: Process 4159 attached [pid 4159] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4152] <... mount resumed>) = -1 EIO (Input/output error) [pid 4152] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4159] <... prctl resumed>) = 0 [pid 4152] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4159] setpgid(0, 0) = 0 [pid 4152] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 4159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4152, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4159] <... openat resumed>) = 3 [pid 4159] write(3, "1000", 4) = 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4160 [pid 4159] close(3) = 0 ./strace-static-x86_64: Process 4160 attached [pid 4159] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4159] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4159] ftruncate(3, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4159] <... ftruncate resumed>) = 0 [pid 4159] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4159] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4159] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4159] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4159] pipe2([5, 6], 0) = 0 [pid 4159] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4159] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4160] <... prctl resumed>) = 0 [pid 4160] setpgid(0, 0 [pid 4158] <... mount resumed>) = -1 EIO (Input/output error) [pid 4160] <... setpgid resumed>) = 0 [pid 4158] exit_group(0 [pid 4160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4158] <... exit_group resumed>) = ? [pid 4160] <... openat resumed>) = 3 [pid 4158] +++ exited with 0 +++ [pid 4160] write(3, "1000", 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4158, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4160] <... write resumed>) = 4 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4160] close(3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4160] <... close resumed>) = 0 [pid 4156] <... mount resumed>) = -1 EIO (Input/output error) [pid 4160] memfd_create("syzkaller", 0 [pid 4156] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 4160] <... memfd_create resumed>) = 3 [pid 4156] <... exit_group resumed>) = ? [pid 4160] ftruncate(3, 0 [pid 4156] +++ exited with 0 +++ [pid 3620] close(3 [pid 4160] <... ftruncate resumed>) = 0 [pid 4160] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4160] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... close resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4160] <... ioctl resumed>) = 0 [pid 4160] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4160] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4160] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4156, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... openat resumed>) = 3 [pid 4160] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4160] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4160] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4161 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4157] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4161 attached [pid 4161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4161] setpgid(0, 0) = 0 [pid 4161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4161] write(3, "1000", 4) = 4 [pid 4161] close(3) = 0 [pid 4161] memfd_create("syzkaller", 0) = 3 [pid 4161] ftruncate(3, 0) = 0 [pid 4161] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4161] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4161] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4161] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4161] pipe2([5, 6], 0) = 0 [pid 4161] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4161] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4157] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4157] <... exit_group resumed>) = ? [pid 4157] +++ exited with 0 +++ [pid 4159] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4157, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4162 [pid 4159] exit_group(0) = ? [pid 4160] <... mount resumed>) = -1 EIO (Input/output error) [pid 4159] +++ exited with 0 +++ [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4159, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4160] exit_group(0) = ? [pid 3616] <... openat resumed>) = 3 [pid 3618] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4163 [pid 4160] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4160, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4162 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4162] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... openat resumed>) = 3 [pid 4162] <... prctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4162] setpgid(0, 0) = 0 [pid 4162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4163 attached ) = 3 [pid 4162] write(3, "1000", 4) = 4 [pid 4162] close(3) = 0 [pid 4162] memfd_create("syzkaller", 0) = 3 [pid 4162] ftruncate(3, 0) = 0 [pid 4162] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4162] ioctl(4, LOOP_SET_FD, 3 [pid 4161] <... mount resumed>) = -1 EIO (Input/output error) [pid 4163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4163] setpgid(0, 0 [pid 4161] exit_group(0) = ? [pid 4163] <... setpgid resumed>) = 0 [pid 4162] <... ioctl resumed>) = 0 [pid 4161] +++ exited with 0 +++ [pid 4162] mkdir("./file0", 0777 [pid 4163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4162] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4161, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4162] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4162] pipe2( [pid 4163] <... openat resumed>) = 3 [pid 4162] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4162] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4162] <... write resumed>) = 21 [pid 4162] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4163] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 4163] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4163] close(3) = 0 [pid 4163] memfd_create("syzkaller", 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4163] <... memfd_create resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4164 [pid 3616] close(3./strace-static-x86_64: Process 4164 attached [pid 4164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4163] ftruncate(3, 0 [pid 3616] <... close resumed>) = 0 [pid 4163] <... ftruncate resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4164] <... prctl resumed>) = 0 [pid 4163] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4164] setpgid(0, 0) = 0 [pid 4164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4163] <... openat resumed>) = 4 [pid 4163] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4165 [pid 4164] <... openat resumed>) = 3 [pid 4163] <... ioctl resumed>) = 0 [pid 4163] mkdir("./file0", 0777 [pid 4164] write(3, "1000", 4 [pid 4163] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4163] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4163] pipe2( [pid 4164] <... write resumed>) = 4 [pid 4163] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4163] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4163] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4164] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 4164] <... close resumed>) = 0 [pid 3619] close(3 [pid 4164] memfd_create("syzkaller", 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4164] <... memfd_create resumed>) = 3 [pid 3620] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4165 attached [pid 4164] ftruncate(3, 0 [pid 3620] <... close resumed>) = 0 [pid 4164] <... ftruncate resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4166 [pid 4164] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4164] ioctl(4, LOOP_SET_FD, 3 [pid 4165] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4164] <... ioctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4165] <... prctl resumed>) = 0 [pid 4164] mkdir("./file0", 0777 [pid 4162] <... mount resumed>) = -1 EIO (Input/output error) [pid 4164] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4162] exit_group(0 [pid 4164] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4162] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4166 attached [pid 4165] setpgid(0, 0 [pid 4164] pipe2( [pid 4162] +++ exited with 0 +++ [pid 4164] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4165] <... setpgid resumed>) = 0 [pid 4164] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4167 [pid 4164] <... write resumed>) = 21 ./strace-static-x86_64: Process 4167 attached [pid 4164] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4166] <... prctl resumed>) = 0 [pid 4165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4162, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4167] <... prctl resumed>) = 0 [pid 4166] setpgid(0, 0 [pid 4165] <... openat resumed>) = 3 [pid 4163] <... mount resumed>) = -1 EIO (Input/output error) [pid 4167] setpgid(0, 0 [pid 4163] exit_group(0 [pid 4166] <... setpgid resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4165] write(3, "1000", 4 [pid 4167] <... setpgid resumed>) = 0 [pid 4163] <... exit_group resumed>) = ? [pid 4167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4165] <... write resumed>) = 4 [pid 4163] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 4167] <... openat resumed>) = 3 [pid 4166] <... openat resumed>) = 3 [pid 4165] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4163, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4167] write(3, "1000", 4) = 4 [pid 4167] close(3) = 0 [pid 4167] memfd_create("syzkaller", 0) = 3 [pid 4166] write(3, "1000", 4 [pid 4165] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4167] ftruncate(3, 0) = 0 [pid 4167] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4166] <... write resumed>) = 4 [pid 4167] ioctl(4, LOOP_SET_FD, 3 [pid 4166] close(3 [pid 4165] memfd_create("syzkaller", 0 [pid 4167] <... ioctl resumed>) = 0 [pid 4166] <... close resumed>) = 0 [pid 4167] mkdir("./file0", 0777 [pid 4165] <... memfd_create resumed>) = 3 [pid 4167] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4166] memfd_create("syzkaller", 0 [pid 4165] ftruncate(3, 0 [pid 4167] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4166] <... memfd_create resumed>) = 3 [pid 4165] <... ftruncate resumed>) = 0 [pid 4167] pipe2( [pid 4166] ftruncate(3, 0 [pid 4167] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4165] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4167] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4166] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4167] <... write resumed>) = 21 [pid 4166] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4165] <... openat resumed>) = 4 [pid 4167] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... openat resumed>) = 3 [pid 4166] <... openat resumed>) = 4 [pid 4165] ioctl(4, LOOP_SET_FD, 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4166] ioctl(4, LOOP_SET_FD, 3 [pid 4165] <... ioctl resumed>) = 0 [pid 4166] <... ioctl resumed>) = 0 [pid 4165] mkdir("./file0", 0777 [pid 4164] <... mount resumed>) = -1 EIO (Input/output error) [pid 4166] mkdir("./file0", 0777 [pid 4164] exit_group(0 [pid 4166] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4165] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4164] <... exit_group resumed>) = ? [pid 4166] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4165] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4164] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4164, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4166] pipe2( [pid 4165] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4165] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4166] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4165] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4167] <... mount resumed>) = -1 EIO (Input/output error) [pid 4166] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4165] <... write resumed>) = 21 [pid 4166] <... write resumed>) = 21 [pid 4165] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4166] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4167] exit_group(0) = ? [pid 4167] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4167, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4168 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4165] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4169 [pid 4165] exit_group(0 [pid 3617] <... close resumed>) = 0 ./strace-static-x86_64: Process 4169 attached [pid 4165] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4165] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4170 [pid 4169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4165, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4170 attached [pid 4169] setpgid(0, 0 [pid 4170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4169] <... setpgid resumed>) = 0 [pid 4166] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4170] <... prctl resumed>) = 0 [pid 4169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... restart_syscall resumed>) = 0 [pid 4170] setpgid(0, 0 [pid 4169] <... openat resumed>) = 3 [pid 4166] exit_group(0 [pid 4170] <... setpgid resumed>) = 0 [pid 4169] write(3, "1000", 4 [pid 4166] <... exit_group resumed>) = ? [pid 4169] <... write resumed>) = 4 [pid 4169] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4169] <... close resumed>) = 0 ./strace-static-x86_64: Process 4168 attached [pid 4169] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 4170] <... openat resumed>) = 3 [pid 4169] <... memfd_create resumed>) = 3 [pid 4168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4166] +++ exited with 0 +++ [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4169] ftruncate(3, 0 [pid 4168] <... prctl resumed>) = 0 [pid 4169] <... ftruncate resumed>) = 0 [pid 4168] setpgid(0, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4166, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4169] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4168] <... setpgid resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... restart_syscall resumed>) = 0 [pid 4170] write(3, "1000", 4 [pid 4169] <... openat resumed>) = 4 [pid 4168] <... openat resumed>) = 3 [pid 4170] <... write resumed>) = 4 [pid 4169] ioctl(4, LOOP_SET_FD, 3 [pid 4168] write(3, "1000", 4 [pid 4170] close(3 [pid 4169] <... ioctl resumed>) = 0 [pid 4168] <... write resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4170] <... close resumed>) = 0 [pid 4169] mkdir("./file0", 0777 [pid 4168] close(3 [pid 3619] <... openat resumed>) = 3 [pid 4170] memfd_create("syzkaller", 0 [pid 4169] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4168] <... close resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4170] <... memfd_create resumed>) = 3 [pid 4169] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4170] ftruncate(3, 0 [pid 4169] pipe2( [pid 4168] memfd_create("syzkaller", 0 [pid 3620] close(3 [pid 4170] <... ftruncate resumed>) = 0 [pid 4169] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4168] <... memfd_create resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 4170] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4169] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4168] ftruncate(3, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4170] <... openat resumed>) = 4 [pid 4169] <... write resumed>) = 21 [pid 4168] <... ftruncate resumed>) = 0 [pid 4170] ioctl(4, LOOP_SET_FD, 3 [pid 4169] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4168] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4170] <... ioctl resumed>) = 0 [pid 4168] <... openat resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4171 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4170] mkdir("./file0", 0777 [pid 4168] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3 [pid 3616] close(3 [pid 4170] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4168] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4170] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4168] mkdir("./file0", 0777 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4170] pipe2( [pid 4168] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4171 attached [pid 4170] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4168] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4173 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4172 ./strace-static-x86_64: Process 4172 attached ./strace-static-x86_64: Process 4173 attached [pid 4171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4170] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4168] pipe2( [pid 4172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4171] <... prctl resumed>) = 0 [pid 4170] <... write resumed>) = 21 [pid 4168] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4172] <... prctl resumed>) = 0 [pid 4173] <... prctl resumed>) = 0 [pid 4171] setpgid(0, 0 [pid 4170] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4168] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4172] setpgid(0, 0 [pid 4173] setpgid(0, 0 [pid 4171] <... setpgid resumed>) = 0 [pid 4168] <... write resumed>) = 21 [pid 4172] <... setpgid resumed>) = 0 [pid 4173] <... setpgid resumed>) = 0 [pid 4171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4168] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4171] <... openat resumed>) = 3 [pid 4172] <... openat resumed>) = 3 [pid 4173] <... openat resumed>) = 3 [pid 4171] write(3, "1000", 4 [pid 4172] write(3, "1000", 4 [pid 4173] write(3, "1000", 4 [pid 4171] <... write resumed>) = 4 [pid 4172] <... write resumed>) = 4 [pid 4173] <... write resumed>) = 4 [pid 4171] close(3 [pid 4172] close(3 [pid 4173] close(3 [pid 4171] <... close resumed>) = 0 [pid 4172] <... close resumed>) = 0 [pid 4173] <... close resumed>) = 0 [pid 4171] memfd_create("syzkaller", 0 [pid 4172] memfd_create("syzkaller", 0 [pid 4173] memfd_create("syzkaller", 0 [pid 4171] <... memfd_create resumed>) = 3 [pid 4172] <... memfd_create resumed>) = 3 [pid 4173] <... memfd_create resumed>) = 3 [pid 4171] ftruncate(3, 0 [pid 4172] ftruncate(3, 0 [pid 4173] ftruncate(3, 0 [pid 4171] <... ftruncate resumed>) = 0 [pid 4172] <... ftruncate resumed>) = 0 [pid 4173] <... ftruncate resumed>) = 0 [pid 4171] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4169] <... mount resumed>) = -1 EIO (Input/output error) [pid 4172] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4173] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4171] <... openat resumed>) = 4 [pid 4169] exit_group(0 [pid 4172] <... openat resumed>) = 4 [pid 4173] <... openat resumed>) = 4 [pid 4171] ioctl(4, LOOP_SET_FD, 3 [pid 4169] <... exit_group resumed>) = ? [pid 4172] ioctl(4, LOOP_SET_FD, 3 [pid 4173] ioctl(4, LOOP_SET_FD, 3 [pid 4171] <... ioctl resumed>) = 0 [pid 4169] +++ exited with 0 +++ [pid 4171] mkdir("./file0", 0777 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4169, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4171] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4171] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4171] pipe2([5, 6], 0) = 0 [pid 4172] <... ioctl resumed>) = 0 [pid 4173] <... ioctl resumed>) = 0 [pid 4171] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4172] mkdir("./file0", 0777 [pid 4173] mkdir("./file0", 0777 [pid 4171] <... write resumed>) = 21 [pid 4172] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4173] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4171] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4172] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4173] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4168] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... openat resumed>) = 3 [pid 4172] pipe2( [pid 4173] pipe2( [pid 4168] exit_group(0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4172] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4173] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4168] <... exit_group resumed>) = ? [pid 4172] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4173] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4168] +++ exited with 0 +++ [pid 4172] <... write resumed>) = 21 [pid 4173] <... write resumed>) = 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4168, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4172] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4173] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4171] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4171] exit_group(0 [pid 3615] close(3 [pid 4171] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4171] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4171, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4174 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4174 attached [pid 3620] <... openat resumed>) = 3 [pid 3618] close(3 [pid 4174] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 4174] <... prctl resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4174] setpgid(0, 0) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4175 [pid 4174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4175 attached ) = 3 [pid 4175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4174] write(3, "1000", 4 [pid 4170] <... mount resumed>) = -1 EIO (Input/output error) [pid 4175] <... prctl resumed>) = 0 [pid 4174] <... write resumed>) = 4 [pid 4170] exit_group(0 [pid 4175] setpgid(0, 0 [pid 4174] close(3 [pid 4170] <... exit_group resumed>) = ? [pid 4175] <... setpgid resumed>) = 0 [pid 4174] <... close resumed>) = 0 [pid 4170] +++ exited with 0 +++ [pid 4175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4174] memfd_create("syzkaller", 0 [pid 4175] <... openat resumed>) = 3 [pid 4174] <... memfd_create resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4170, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4175] write(3, "1000", 4 [pid 4174] ftruncate(3, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4175] <... write resumed>) = 4 [pid 4174] <... ftruncate resumed>) = 0 [pid 4173] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4175] close(3 [pid 4174] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4173] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 4175] <... close resumed>) = 0 [pid 4174] <... openat resumed>) = 4 [pid 4173] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4173] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4176 ./strace-static-x86_64: Process 4176 attached [pid 4175] memfd_create("syzkaller", 0 [pid 4174] ioctl(4, LOOP_SET_FD, 3 [pid 4175] <... memfd_create resumed>) = 3 [pid 4174] <... ioctl resumed>) = 0 [pid 4172] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4173, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4175] ftruncate(3, 0 [pid 4174] mkdir("./file0", 0777 [pid 4172] exit_group(0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... openat resumed>) = 3 [pid 4176] <... prctl resumed>) = 0 [pid 4175] <... ftruncate resumed>) = 0 [pid 4174] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4172] <... exit_group resumed>) = ? [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4176] setpgid(0, 0 [pid 4175] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4174] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4176] <... setpgid resumed>) = 0 [pid 4175] <... openat resumed>) = 4 [pid 4174] pipe2( [pid 4172] +++ exited with 0 +++ [pid 4176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4175] ioctl(4, LOOP_SET_FD, 3 [pid 4174] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4176] <... openat resumed>) = 3 [pid 4175] <... ioctl resumed>) = 0 [pid 4174] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4172, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4176] write(3, "1000", 4 [pid 4175] mkdir("./file0", 0777 [pid 4174] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4176] <... write resumed>) = 4 [pid 4175] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4174] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... openat resumed>) = 3 [pid 4176] close(3 [pid 4175] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4176] <... close resumed>) = 0 [pid 4175] pipe2( [pid 4176] memfd_create("syzkaller", 0) = 3 [pid 4175] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4176] ftruncate(3, 0) = 0 [pid 4175] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4176] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4175] <... write resumed>) = 21 [pid 4176] <... openat resumed>) = 4 [pid 4175] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4176] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4176] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4176] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4176] pipe2([5, 6], 0) = 0 [pid 4176] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4176] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3619] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4177 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4178 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4179 ./strace-static-x86_64: Process 4178 attached ./strace-static-x86_64: Process 4179 attached [pid 4179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4179] <... prctl resumed>) = 0 [pid 4178] <... prctl resumed>) = 0 [pid 4179] setpgid(0, 0 [pid 4178] setpgid(0, 0 [pid 4179] <... setpgid resumed>) = 0 [pid 4178] <... setpgid resumed>) = 0 [pid 4174] <... mount resumed>) = -1 EIO (Input/output error) [pid 4179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4174] exit_group(0./strace-static-x86_64: Process 4177 attached [pid 4179] <... openat resumed>) = 3 [pid 4178] <... openat resumed>) = 3 [pid 4174] <... exit_group resumed>) = ? [pid 4179] write(3, "1000", 4 [pid 4178] write(3, "1000", 4 [pid 4177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4174] +++ exited with 0 +++ [pid 4177] <... prctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4174, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4177] setpgid(0, 0) = 0 [pid 4179] <... write resumed>) = 4 [pid 4178] <... write resumed>) = 4 [pid 4177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4179] close(3 [pid 4178] close(3 [pid 4177] <... openat resumed>) = 3 [pid 4179] <... close resumed>) = 0 [pid 4178] <... close resumed>) = 0 [pid 4177] write(3, "1000", 4 [pid 4175] <... mount resumed>) = -1 EIO (Input/output error) [pid 4179] memfd_create("syzkaller", 0 [pid 4178] memfd_create("syzkaller", 0 [pid 4177] <... write resumed>) = 4 [pid 4175] exit_group(0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4179] <... memfd_create resumed>) = 3 [pid 4178] <... memfd_create resumed>) = 3 [pid 4177] close(3 [pid 4175] <... exit_group resumed>) = ? [pid 3615] <... openat resumed>) = 3 [pid 4179] ftruncate(3, 0 [pid 4178] ftruncate(3, 0 [pid 4177] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4179] <... ftruncate resumed>) = 0 [pid 4178] <... ftruncate resumed>) = 0 [pid 4177] memfd_create("syzkaller", 0 [pid 4175] +++ exited with 0 +++ [pid 4179] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4178] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4177] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4175, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4179] <... openat resumed>) = 4 [pid 4178] <... openat resumed>) = 4 [pid 4177] ftruncate(3, 0 [pid 4179] ioctl(4, LOOP_SET_FD, 3 [pid 4178] ioctl(4, LOOP_SET_FD, 3 [pid 4177] <... ftruncate resumed>) = 0 [pid 4177] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4177] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4177] mkdir("./file0", 0777 [pid 3618] <... openat resumed>) = 3 [pid 4177] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4177] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4177] pipe2([5, 6], 0) = 0 [pid 4179] <... ioctl resumed>) = 0 [pid 4178] <... ioctl resumed>) = 0 [pid 4177] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4179] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4178] mkdir("./file0", 0777 [pid 4177] <... write resumed>) = 21 [pid 4179] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4178] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4177] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4179] pipe2( [pid 4178] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4176] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4179] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4178] pipe2( [pid 4176] exit_group(0 [pid 3618] close(3 [pid 3615] close(3 [pid 4179] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4178] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4176] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4179] <... write resumed>) = 21 [pid 4178] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4176] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4179] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4178] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4176, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4178] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4180 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4181 ./strace-static-x86_64: Process 4180 attached [pid 4180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4180] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4181 attached [pid 4180] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4180] <... setpgid resumed>) = 0 [pid 4181] <... prctl resumed>) = 0 [pid 4180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4181] setpgid(0, 0 [pid 4180] <... openat resumed>) = 3 [pid 4177] <... mount resumed>) = -1 EIO (Input/output error) [pid 4181] <... setpgid resumed>) = 0 [pid 4177] exit_group(0 [pid 4181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4177] <... exit_group resumed>) = ? [pid 4181] <... openat resumed>) = 3 [pid 4177] +++ exited with 0 +++ [pid 4181] write(3, "1000", 4 [pid 4180] write(3, "1000", 4 [pid 4181] <... write resumed>) = 4 [pid 4180] <... write resumed>) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4177, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4181] close(3 [pid 4180] close(3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4181] <... close resumed>) = 0 [pid 4180] <... close resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4181] memfd_create("syzkaller", 0 [pid 4180] memfd_create("syzkaller", 0 [pid 4181] <... memfd_create resumed>) = 3 [pid 4180] <... memfd_create resumed>) = 3 [pid 4181] ftruncate(3, 0 [pid 4180] ftruncate(3, 0 [pid 4181] <... ftruncate resumed>) = 0 [pid 4180] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4181] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4180] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4181] <... openat resumed>) = 4 [pid 4180] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4181] ioctl(4, LOOP_SET_FD, 3 [pid 4180] ioctl(4, LOOP_SET_FD, 3 [pid 4181] <... ioctl resumed>) = 0 [pid 4181] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4181] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4181] pipe2([5, 6], 0) = 0 [pid 4181] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4181] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4180] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4180] mkdir("./file0", 0777 [pid 3620] close(3 [pid 4180] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 4180] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4180] pipe2( [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4182 ./strace-static-x86_64: Process 4182 attached [pid 4182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4182] setpgid(0, 0 [pid 4180] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4178] <... mount resumed>) = -1 EIO (Input/output error) [pid 4180] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4178] exit_group(0 [pid 4180] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4178] <... exit_group resumed>) = ? [pid 4182] <... setpgid resumed>) = 0 [pid 4182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4178] +++ exited with 0 +++ [pid 4182] <... openat resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4178, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4182] write(3, "1000", 4) = 4 [pid 4182] close(3) = 0 [pid 4182] memfd_create("syzkaller", 0) = 3 [pid 4182] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4182] <... ftruncate resumed>) = 0 [pid 4182] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 4182] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4182] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4182] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4182] pipe2( [pid 4179] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4182] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4182] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4179] exit_group(0 [pid 3619] close(3 [pid 3617] <... close resumed>) = 0 [pid 4182] <... write resumed>) = 21 [pid 4179] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4182] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4179] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4183 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4184 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4179, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 4183 attached [pid 4181] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4181] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4184 attached [pid 4183] <... prctl resumed>) = 0 [pid 4181] <... exit_group resumed>) = ? [pid 4184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4183] setpgid(0, 0 [pid 4181] +++ exited with 0 +++ [pid 4184] setpgid(0, 0 [pid 4183] <... setpgid resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4181, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4184] <... setpgid resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... restart_syscall resumed>) = 0 [pid 4184] <... openat resumed>) = 3 [pid 4183] <... openat resumed>) = 3 [pid 4184] write(3, "1000", 4) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4184] close(3 [pid 3615] <... openat resumed>) = 3 [pid 4184] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4184] memfd_create("syzkaller", 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4184] <... memfd_create resumed>) = 3 [pid 3615] close(3 [pid 4184] ftruncate(3, 0 [pid 3615] <... close resumed>) = 0 [pid 4184] <... ftruncate resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4184] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4183] write(3, "1000", 4 [pid 4184] <... openat resumed>) = 4 [pid 4183] <... write resumed>) = 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4185 [pid 4184] ioctl(4, LOOP_SET_FD, 3 [pid 4183] close(3 [pid 4184] <... ioctl resumed>) = 0 [pid 4183] <... close resumed>) = 0 [pid 4180] <... mount resumed>) = -1 EIO (Input/output error) [pid 4184] mkdir("./file0", 0777 [pid 4183] memfd_create("syzkaller", 0 [pid 4180] exit_group(0./strace-static-x86_64: Process 4185 attached [pid 4184] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4183] <... memfd_create resumed>) = 3 [pid 4180] <... exit_group resumed>) = ? [pid 4185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4184] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4183] ftruncate(3, 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4185] <... prctl resumed>) = 0 [pid 4184] pipe2( [pid 4183] <... ftruncate resumed>) = 0 [pid 4180] +++ exited with 0 +++ [pid 3616] close(3 [pid 4185] setpgid(0, 0 [pid 4184] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4183] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4180, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... close resumed>) = 0 [pid 4185] <... setpgid resumed>) = 0 [pid 4184] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4183] <... openat resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4184] <... write resumed>) = 21 [pid 4183] ioctl(4, LOOP_SET_FD, 3 [pid 4185] <... openat resumed>) = 3 [pid 4184] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4183] <... ioctl resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4186 ./strace-static-x86_64: Process 4186 attached [pid 4185] write(3, "1000", 4 [pid 4183] mkdir("./file0", 0777 [pid 4186] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4185] <... write resumed>) = 4 [pid 4183] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4186] <... prctl resumed>) = 0 [pid 4185] close(3 [pid 4183] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4186] setpgid(0, 0 [pid 4185] <... close resumed>) = 0 [pid 4183] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4186] <... setpgid resumed>) = 0 [pid 4185] memfd_create("syzkaller", 0) = 3 [pid 4185] ftruncate(3, 0) = 0 [pid 4185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4185] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4185] mkdir("./file0", 0777 [pid 4186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4185] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4183] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4182] <... mount resumed>) = -1 EIO (Input/output error) [pid 4186] <... openat resumed>) = 3 [pid 4185] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4183] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4182] exit_group(0 [pid 4186] write(3, "1000", 4 [pid 4185] pipe2( [pid 4183] <... write resumed>) = 21 [pid 4182] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4186] <... write resumed>) = 4 [pid 4185] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4183] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4182] +++ exited with 0 +++ [pid 3618] close(3 [pid 4186] close(3 [pid 4185] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... close resumed>) = 0 [pid 4186] <... close resumed>) = 0 [pid 4185] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4182, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4186] memfd_create("syzkaller", 0 [pid 4185] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4186] <... memfd_create resumed>) = 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4187 [pid 4186] ftruncate(3, 0) = 0 [pid 4186] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4186] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 4186] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4186] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4187 attached [pid 4186] mkdir("./file0", 0777 [pid 4184] <... mount resumed>) = -1 EIO (Input/output error) [pid 4187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4186] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4187] <... prctl resumed>) = 0 [pid 4187] setpgid(0, 0) = 0 [pid 4187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4187] write(3, "1000", 4) = 4 [pid 4187] close(3) = 0 [pid 4187] memfd_create("syzkaller", 0) = 3 [pid 4187] ftruncate(3, 0) = 0 [pid 4186] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4184] exit_group(0 [pid 4187] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4186] pipe2( [pid 4184] <... exit_group resumed>) = ? [pid 4187] <... openat resumed>) = 4 [pid 4187] ioctl(4, LOOP_SET_FD, 3 [pid 4186] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4187] <... ioctl resumed>) = 0 [pid 4186] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4184] +++ exited with 0 +++ [pid 4187] mkdir("./file0", 0777 [pid 4186] <... write resumed>) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4184, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4187] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4187] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4187] pipe2([5, 6], 0) = 0 [pid 4187] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4186] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4187] <... write resumed>) = 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4187] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4188 ./strace-static-x86_64: Process 4188 attached [pid 4188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4188] setpgid(0, 0) = 0 [pid 4188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4185] <... mount resumed>) = -1 EIO (Input/output error) [pid 4188] <... openat resumed>) = 3 [pid 4188] write(3, "1000", 4) = 4 [pid 4188] close(3) = 0 [pid 4188] memfd_create("syzkaller", 0) = 3 [pid 4188] ftruncate(3, 0) = 0 [pid 4188] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4188] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4188] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4185] exit_group(0 [pid 4188] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4185] <... exit_group resumed>) = ? [pid 4183] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 4188] pipe2( [pid 4185] +++ exited with 0 +++ [pid 4188] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4183] exit_group(0 [pid 3619] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4185, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4188] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4183] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 4188] <... write resumed>) = 21 [pid 4188] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4183] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4183, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4189 [pid 3615] <... ioctl resumed>) = 0 [pid 4187] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] close(3 [pid 4187] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 4187] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4187] +++ exited with 0 +++ [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4190 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4187, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4190 attached ./strace-static-x86_64: Process 4189 attached [pid 4190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4190] <... prctl resumed>) = 0 [pid 4190] setpgid(0, 0) = 0 [pid 4190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4190] write(3, "1000", 4) = 4 [pid 4190] close(3 [pid 4189] <... prctl resumed>) = 0 [pid 4186] <... mount resumed>) = -1 EIO (Input/output error) [pid 4190] <... close resumed>) = 0 [pid 4189] setpgid(0, 0 [pid 4186] exit_group(0 [pid 4190] memfd_create("syzkaller", 0 [pid 4189] <... setpgid resumed>) = 0 [pid 4186] <... exit_group resumed>) = ? [pid 4190] <... memfd_create resumed>) = 3 [pid 4189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4190] ftruncate(3, 0) = 0 [pid 4189] <... openat resumed>) = 3 [pid 4186] +++ exited with 0 +++ [pid 4190] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4189] write(3, "1000", 4 [pid 3617] <... ioctl resumed>) = 0 [pid 4190] <... openat resumed>) = 4 [pid 4189] <... write resumed>) = 4 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4186, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4190] ioctl(4, LOOP_SET_FD, 3 [pid 4189] close(3 [pid 3618] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4190] <... ioctl resumed>) = 0 [pid 4189] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... restart_syscall resumed>) = 0 [pid 4190] mkdir("./file0", 0777 [pid 4189] memfd_create("syzkaller", 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4190] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4189] <... memfd_create resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4191 ./strace-static-x86_64: Process 4191 attached [pid 4190] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4189] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4192 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4190] pipe2( [pid 4189] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4191] <... prctl resumed>) = 0 [pid 4190] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4189] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4188] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4192 attached [pid 4191] setpgid(0, 0 [pid 4190] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4189] <... openat resumed>) = 4 [pid 4188] exit_group(0 [pid 4192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4191] <... setpgid resumed>) = 0 [pid 4190] <... write resumed>) = 21 [pid 4188] <... exit_group resumed>) = ? [pid 4192] <... prctl resumed>) = 0 [pid 4190] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4189] ioctl(4, LOOP_SET_FD, 3 [pid 4188] +++ exited with 0 +++ [pid 4192] setpgid(0, 0 [pid 4191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4189] <... ioctl resumed>) = 0 [pid 4192] <... setpgid resumed>) = 0 [pid 4191] <... openat resumed>) = 3 [pid 4189] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4188, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4191] write(3, "1000", 4 [pid 4189] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4192] <... openat resumed>) = 3 [pid 4191] <... write resumed>) = 4 [pid 4189] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... restart_syscall resumed>) = 0 [pid 4192] write(3, "1000", 4 [pid 4191] close(3 [pid 4189] pipe2( [pid 4192] <... write resumed>) = 4 [pid 4191] <... close resumed>) = 0 [pid 4189] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4192] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4192] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4192] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4192] <... memfd_create resumed>) = 3 [pid 4192] ftruncate(3, 0) = 0 [pid 4192] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4191] memfd_create("syzkaller", 0 [pid 4189] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4192] <... openat resumed>) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 4192] ioctl(4, LOOP_SET_FD, 3 [pid 3616] close(3 [pid 4192] <... ioctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4192] mkdir("./file0", 0777 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4192] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4191] <... memfd_create resumed>) = 3 [pid 4189] <... write resumed>) = 21 [pid 4192] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4191] ftruncate(3, 0 [pid 4189] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4193 ./strace-static-x86_64: Process 4193 attached [pid 4192] pipe2( [pid 4191] <... ftruncate resumed>) = 0 [pid 4190] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4193] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4192] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4191] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4190] exit_group(0 [pid 3620] close(3 [pid 4193] <... prctl resumed>) = 0 [pid 4192] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4191] <... openat resumed>) = 4 [pid 4190] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4193] setpgid(0, 0 [pid 4192] <... write resumed>) = 21 [pid 4191] ioctl(4, LOOP_SET_FD, 3 [pid 4190] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4193] <... setpgid resumed>) = 0 [pid 4192] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4191] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4194 attached [pid 4193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4191] mkdir("./file0", 0777 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4194 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4190, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4193] <... openat resumed>) = 3 [pid 4191] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4194] <... prctl resumed>) = 0 [pid 4193] write(3, "1000", 4 [pid 4191] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... restart_syscall resumed>) = 0 [pid 4194] setpgid(0, 0 [pid 4193] <... write resumed>) = 4 [pid 4191] pipe2( [pid 4194] <... setpgid resumed>) = 0 [pid 4193] close(3 [pid 4191] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4193] <... close resumed>) = 0 [pid 4191] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4189] <... mount resumed>) = -1 EIO (Input/output error) [pid 4194] <... openat resumed>) = 3 [pid 4193] memfd_create("syzkaller", 0 [pid 4191] <... write resumed>) = 21 [pid 4189] exit_group(0 [pid 4194] write(3, "1000", 4 [pid 4189] <... exit_group resumed>) = ? [pid 4189] +++ exited with 0 +++ [pid 4191] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4194] <... write resumed>) = 4 [pid 4193] <... memfd_create resumed>) = 3 [pid 4192] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4189, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4194] close(3 [pid 4193] ftruncate(3, 0 [pid 4192] exit_group(0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4194] <... close resumed>) = 0 [pid 4193] <... ftruncate resumed>) = 0 [pid 4192] <... exit_group resumed>) = ? [pid 3619] <... restart_syscall resumed>) = 0 [pid 4194] memfd_create("syzkaller", 0 [pid 4193] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4192] +++ exited with 0 +++ [pid 4194] <... memfd_create resumed>) = 3 [pid 4193] <... openat resumed>) = 4 [pid 4194] ftruncate(3, 0 [pid 4193] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4192, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4194] <... ftruncate resumed>) = 0 [pid 4193] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4194] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4193] mkdir("./file0", 0777 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... restart_syscall resumed>) = 0 [pid 4194] <... openat resumed>) = 4 [pid 4193] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... ioctl resumed>) = 0 [pid 4194] ioctl(4, LOOP_SET_FD, 3 [pid 4193] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] close(3 [pid 4194] <... ioctl resumed>) = 0 [pid 4193] pipe2( [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 4194] mkdir("./file0", 0777 [pid 4193] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4194] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4193] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4194] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4193] <... write resumed>) = 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4195 [pid 4194] pipe2( [pid 4193] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4194] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4194] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4194] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4195 attached [pid 4195] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4195] setpgid(0, 0) = 0 [pid 4195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4195] write(3, "1000", 4) = 4 [pid 4195] close(3) = 0 [pid 4191] <... mount resumed>) = -1 EIO (Input/output error) [pid 4195] memfd_create("syzkaller", 0 [pid 4191] exit_group(0 [pid 4195] <... memfd_create resumed>) = 3 [pid 4191] <... exit_group resumed>) = ? [pid 4195] ftruncate(3, 0 [pid 4191] +++ exited with 0 +++ [pid 4195] <... ftruncate resumed>) = 0 [pid 4195] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4191, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4195] <... openat resumed>) = 4 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4195] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4195] <... ioctl resumed>) = 0 [pid 4195] mkdir("./file0", 0777 [pid 3619] <... ioctl resumed>) = 0 [pid 4195] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4195] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4195] pipe2( [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4195] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4195] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4196 [pid 4195] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4196 attached [pid 4196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4196] setpgid(0, 0) = 0 [pid 4196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4196] write(3, "1000", 4) = 4 [pid 4196] close(3) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4196] memfd_create("syzkaller", 0 [pid 3618] close(3 [pid 4196] <... memfd_create resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 4196] ftruncate(3, 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4196] <... ftruncate resumed>) = 0 [pid 4196] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4197 [pid 4196] <... openat resumed>) = 4 [pid 4196] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4196] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4194] <... mount resumed>) = -1 EIO (Input/output error) [pid 4196] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4194] exit_group(0 [pid 4196] pipe2( [pid 4194] <... exit_group resumed>) = ? [pid 4196] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4196] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4197 attached ) = 21 [pid 4197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4196] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4194] +++ exited with 0 +++ [pid 4197] <... prctl resumed>) = 0 [pid 4197] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4194, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4197] <... setpgid resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 4197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... openat resumed>) = 3 [pid 3617] close(3 [pid 4197] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] <... close resumed>) = 0 [pid 4197] write(3, "1000", 4 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4197] <... write resumed>) = 4 [pid 4197] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4198 [pid 4197] <... close resumed>) = 0 ./strace-static-x86_64: Process 4198 attached [pid 4197] memfd_create("syzkaller", 0 [pid 4193] <... mount resumed>) = -1 EIO (Input/output error) [pid 4198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4197] <... memfd_create resumed>) = 3 [pid 4193] exit_group(0 [pid 4198] <... prctl resumed>) = 0 [pid 4197] ftruncate(3, 0 [pid 4193] <... exit_group resumed>) = ? [pid 4198] setpgid(0, 0 [pid 4197] <... ftruncate resumed>) = 0 [pid 4193] +++ exited with 0 +++ [pid 4198] <... setpgid resumed>) = 0 [pid 4197] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4197] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4193, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4198] <... openat resumed>) = 3 [pid 4197] ioctl(4, LOOP_SET_FD, 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4198] write(3, "1000", 4 [pid 4197] <... ioctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4198] <... write resumed>) = 4 [pid 4197] mkdir("./file0", 0777 [pid 4198] close(3 [pid 4197] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4198] <... close resumed>) = 0 [pid 4197] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4198] memfd_create("syzkaller", 0 [pid 4197] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4198] <... memfd_create resumed>) = 3 [pid 4197] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4198] ftruncate(3, 0 [pid 4197] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... ioctl resumed>) = 0 [pid 4197] <... write resumed>) = 21 [pid 3620] close(3 [pid 4197] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4199 attached [pid 4198] <... ftruncate resumed>) = 0 [pid 4196] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4199 [pid 4199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4198] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4196] exit_group(0 [pid 4199] <... prctl resumed>) = 0 [pid 4198] <... openat resumed>) = 4 [pid 4196] <... exit_group resumed>) = ? [pid 4199] setpgid(0, 0 [pid 4198] ioctl(4, LOOP_SET_FD, 3 [pid 4196] +++ exited with 0 +++ [pid 4199] <... setpgid resumed>) = 0 [pid 4198] <... ioctl resumed>) = 0 [pid 4195] <... mount resumed>) = -1 EIO (Input/output error) [pid 4199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4198] mkdir("./file0", 0777 [pid 4195] exit_group(0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4196, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4199] <... openat resumed>) = 3 [pid 4198] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4195] <... exit_group resumed>) = ? [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4199] write(3, "1000", 4 [pid 4198] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... restart_syscall resumed>) = 0 [pid 4199] <... write resumed>) = 4 [pid 4198] pipe2( [pid 4195] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 4199] close(3 [pid 4198] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4195, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4199] <... close resumed>) = 0 [pid 4198] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... close resumed>) = 0 [pid 4199] memfd_create("syzkaller", 0 [pid 4198] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4199] <... memfd_create resumed>) = 3 [pid 4198] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4199] ftruncate(3, 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4200 [pid 3615] <... openat resumed>) = 3 [pid 4199] <... ftruncate resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4200 attached [pid 4199] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4199] <... openat resumed>) = 4 [pid 4200] <... prctl resumed>) = 0 [pid 4199] ioctl(4, LOOP_SET_FD, 3 [pid 4200] setpgid(0, 0 [pid 4199] <... ioctl resumed>) = 0 [pid 4200] <... setpgid resumed>) = 0 [pid 4199] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4199] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4200] write(3, "1000", 4 [pid 4199] pipe2( [pid 4200] <... write resumed>) = 4 [pid 4199] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4200] close(3 [pid 4199] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4200] <... close resumed>) = 0 [pid 4199] <... write resumed>) = 21 [pid 4200] memfd_create("syzkaller", 0 [pid 4199] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4200] <... memfd_create resumed>) = 3 [pid 4200] ftruncate(3, 0 [pid 4197] <... mount resumed>) = -1 EIO (Input/output error) [pid 4200] <... ftruncate resumed>) = 0 [pid 4197] exit_group(0) = ? [pid 4197] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4197, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4200] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4200] <... openat resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4200] ioctl(4, LOOP_SET_FD, 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4200] <... ioctl resumed>) = 0 [pid 4200] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4200] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4200] pipe2([5, 6], 0) = 0 [pid 4200] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4200] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4201 ./strace-static-x86_64: Process 4201 attached [pid 4201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4201] setpgid(0, 0) = 0 [pid 4201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4201] write(3, "1000", 4) = 4 [pid 4201] close(3) = 0 [pid 4201] memfd_create("syzkaller", 0 [pid 4199] <... mount resumed>) = -1 EIO (Input/output error) [pid 4201] <... memfd_create resumed>) = 3 [pid 4201] ftruncate(3, 0 [pid 4199] exit_group(0 [pid 4201] <... ftruncate resumed>) = 0 [pid 4201] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4199] <... exit_group resumed>) = ? [pid 4201] <... openat resumed>) = 4 [pid 4199] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 4201] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4199, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3 [pid 4201] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4201] mkdir("./file0", 0777 [pid 4198] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4201] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4201] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4202 [pid 4201] pipe2( [pid 3618] <... ioctl resumed>) = 0 [pid 4201] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] close(3 [pid 4201] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... openat resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 4201] <... write resumed>) = 21 [pid 4198] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4201] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4203 ./strace-static-x86_64: Process 4203 attached [pid 4198] <... exit_group resumed>) = ? [pid 4198] +++ exited with 0 +++ [pid 4203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4198, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4203] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4203] <... setpgid resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4203] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4203] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4203] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4202 attached [pid 4203] <... close resumed>) = 0 [pid 4203] memfd_create("syzkaller", 0) = 3 [pid 4202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4203] ftruncate(3, 0 [pid 4202] <... prctl resumed>) = 0 [pid 4203] <... ftruncate resumed>) = 0 [pid 4202] setpgid(0, 0 [pid 4200] <... mount resumed>) = -1 EIO (Input/output error) [pid 4203] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4202] <... setpgid resumed>) = 0 [pid 4200] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 4203] <... openat resumed>) = 4 [pid 4202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4200] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 4203] ioctl(4, LOOP_SET_FD, 3 [pid 4202] <... openat resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 4203] <... ioctl resumed>) = 0 [pid 4202] write(3, "1000", 4 [pid 4200] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4203] mkdir("./file0", 0777 [pid 4202] <... write resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4200, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4203] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4202] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4204 ./strace-static-x86_64: Process 4204 attached [pid 4203] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4202] <... close resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4203] pipe2( [pid 4202] memfd_create("syzkaller", 0 [pid 3617] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4203] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4204] <... prctl resumed>) = 0 [pid 4203] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4202] <... memfd_create resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4204] setpgid(0, 0 [pid 4203] <... write resumed>) = 21 [pid 4202] ftruncate(3, 0 [pid 4204] <... setpgid resumed>) = 0 [pid 4203] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4202] <... ftruncate resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4205 [pid 4204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4202] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4201] <... mount resumed>) = -1 EIO (Input/output error) [pid 4204] <... openat resumed>) = 3 [pid 4202] <... openat resumed>) = 4 [pid 4201] exit_group(0 [pid 4204] write(3, "1000", 4 [pid 4202] ioctl(4, LOOP_SET_FD, 3 [pid 4201] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4205 attached [pid 4204] <... write resumed>) = 4 [pid 4202] <... ioctl resumed>) = 0 [pid 4201] +++ exited with 0 +++ [pid 4205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4204] close(3 [pid 4202] mkdir("./file0", 0777 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4201, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4205] <... prctl resumed>) = 0 [pid 4204] <... close resumed>) = 0 [pid 4202] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4205] setpgid(0, 0 [pid 4204] memfd_create("syzkaller", 0 [pid 4202] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4205] <... setpgid resumed>) = 0 [pid 4204] <... memfd_create resumed>) = 3 [pid 4202] pipe2( [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4204] ftruncate(3, 0 [pid 4202] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4205] <... openat resumed>) = 3 [pid 4204] <... ftruncate resumed>) = 0 [pid 4202] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4205] write(3, "1000", 4 [pid 4204] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4203] <... mount resumed>) = -1 EIO (Input/output error) [pid 4202] <... write resumed>) = 21 [pid 4205] <... write resumed>) = 4 [pid 4204] <... openat resumed>) = 4 [pid 4203] exit_group(0 [pid 4202] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4205] close(3 [pid 4204] ioctl(4, LOOP_SET_FD, 3 [pid 4203] <... exit_group resumed>) = ? [pid 4205] <... close resumed>) = 0 [pid 4204] <... ioctl resumed>) = 0 [pid 4203] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4203, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] close(3) = 0 [pid 4205] memfd_create("syzkaller", 0 [pid 4204] mkdir("./file0", 0777 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4205] <... memfd_create resumed>) = 3 [pid 4204] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4205] ftruncate(3, 0 [pid 4204] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4206 [pid 4205] <... ftruncate resumed>) = 0 [pid 4204] pipe2( [pid 4205] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4204] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4205] <... openat resumed>) = 4 [pid 4204] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... openat resumed>) = 3 [pid 4205] ioctl(4, LOOP_SET_FD, 3 [pid 4204] <... write resumed>) = 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4205] <... ioctl resumed>) = 0 [pid 4204] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4205] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4205] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4206 attached [pid 4205] pipe2( [pid 4206] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4205] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4206] <... prctl resumed>) = 0 [pid 4205] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4206] setpgid(0, 0 [pid 4205] <... write resumed>) = 21 [pid 4206] <... setpgid resumed>) = 0 [pid 4205] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4206] write(3, "1000", 4) = 4 [pid 4206] close(3) = 0 [pid 4206] memfd_create("syzkaller", 0) = 3 [pid 4206] ftruncate(3, 0) = 0 [pid 4206] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4206] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4206] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4206] pipe2([5, 6], 0) = 0 [pid 4206] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4206] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 4202] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3) = 0 [pid 4202] exit_group(0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4202] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4207 attached [pid 4202] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4207 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4202, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4204] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4207] <... prctl resumed>) = 0 [pid 4204] exit_group(0 [pid 3618] close(3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4207] setpgid(0, 0 [pid 4204] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4207] <... setpgid resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4204] +++ exited with 0 +++ [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4207] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4204, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4208 [pid 3615] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4208 attached [pid 4207] write(3, "1000", 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4207] <... write resumed>) = 4 [pid 4208] <... prctl resumed>) = 0 [pid 4207] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4208] setpgid(0, 0 [pid 4207] <... close resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4208] <... setpgid resumed>) = 0 [pid 4207] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4207] <... memfd_create resumed>) = 3 [pid 4208] <... openat resumed>) = 3 [pid 4207] ftruncate(3, 0 [pid 4208] write(3, "1000", 4 [pid 4207] <... ftruncate resumed>) = 0 [pid 4208] <... write resumed>) = 4 [pid 4207] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4208] close(3 [pid 4207] <... openat resumed>) = 4 [pid 4208] <... close resumed>) = 0 [pid 4207] ioctl(4, LOOP_SET_FD, 3 [pid 4208] memfd_create("syzkaller", 0 [pid 4207] <... ioctl resumed>) = 0 [pid 4208] <... memfd_create resumed>) = 3 [pid 4207] mkdir("./file0", 0777 [pid 4208] ftruncate(3, 0 [pid 4207] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4208] <... ftruncate resumed>) = 0 [pid 4207] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4208] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4206] <... mount resumed>) = -1 EIO (Input/output error) [pid 4206] exit_group(0) = ? [pid 4206] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4206, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4207] pipe2( [pid 4208] <... openat resumed>) = 4 [pid 4207] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4208] ioctl(4, LOOP_SET_FD, 3 [pid 4207] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4208] <... ioctl resumed>) = 0 [pid 4207] <... write resumed>) = 21 [pid 4208] mkdir("./file0", 0777 [pid 4207] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4208] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4208] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4208] pipe2([5, 6], 0) = 0 [pid 4208] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4208] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4205] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... close resumed>) = 0 [pid 4205] exit_group(0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4209 ./strace-static-x86_64: Process 4209 attached [pid 4209] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4209] setpgid(0, 0) = 0 [pid 4205] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 4205] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4205, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4210 [pid 3616] <... close resumed>) = 0 [pid 4209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4209] <... openat resumed>) = 3 [pid 4209] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4211 [pid 4209] <... write resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4209] close(3 [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4210 attached [pid 4209] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4209] memfd_create("syzkaller", 0 [pid 4210] <... prctl resumed>) = 0 [pid 4209] <... memfd_create resumed>) = 3 [pid 4210] setpgid(0, 0 [pid 4209] ftruncate(3, 0 [pid 4210] <... setpgid resumed>) = 0 [pid 4209] <... ftruncate resumed>) = 0 [pid 4210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4209] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4210] <... openat resumed>) = 3 [pid 4209] <... openat resumed>) = 4 [pid 4210] write(3, "1000", 4 [pid 4209] ioctl(4, LOOP_SET_FD, 3 [pid 4210] <... write resumed>) = 4 [pid 4209] <... ioctl resumed>) = 0 [pid 4207] <... mount resumed>) = -1 EIO (Input/output error) [pid 4210] close(3 [pid 4209] mkdir("./file0", 0777 [pid 4207] exit_group(0 [pid 4210] <... close resumed>) = 0 [pid 4209] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4207] <... exit_group resumed>) = ? [pid 4210] memfd_create("syzkaller", 0 [pid 4209] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4210] <... memfd_create resumed>) = 3 [pid 4209] pipe2( [pid 4207] +++ exited with 0 +++ [pid 4210] ftruncate(3, 0 [pid 4209] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4207, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4211 attached [pid 4210] <... ftruncate resumed>) = 0 [pid 4209] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4210] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4209] <... write resumed>) = 21 [pid 4211] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4210] <... openat resumed>) = 4 [pid 4209] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4211] <... prctl resumed>) = 0 [pid 4210] ioctl(4, LOOP_SET_FD, 3 [pid 4208] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4211] setpgid(0, 0 [pid 4210] <... ioctl resumed>) = 0 [pid 4208] exit_group(0 [pid 3617] close(3 [pid 4211] <... setpgid resumed>) = 0 [pid 4210] mkdir("./file0", 0777 [pid 4208] <... exit_group resumed>) = ? [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 4211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4210] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4211] <... openat resumed>) = 3 [pid 4210] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4208] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 4211] write(3, "1000", 4 [pid 4210] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4208, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4212 ./strace-static-x86_64: Process 4212 attached [pid 4211] <... write resumed>) = 4 [pid 4210] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4211] close(3 [pid 4210] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4212] <... prctl resumed>) = 0 [pid 4211] <... close resumed>) = 0 [pid 4210] <... write resumed>) = 21 [pid 4212] setpgid(0, 0 [pid 4211] memfd_create("syzkaller", 0 [pid 4210] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4212] <... setpgid resumed>) = 0 [pid 4211] <... memfd_create resumed>) = 3 [pid 4212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4211] ftruncate(3, 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4212] <... openat resumed>) = 3 [pid 4211] <... ftruncate resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4212] write(3, "1000", 4 [pid 4211] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4212] <... write resumed>) = 4 [pid 4211] <... openat resumed>) = 4 [pid 4212] close(3 [pid 4211] ioctl(4, LOOP_SET_FD, 3 [pid 4212] <... close resumed>) = 0 [pid 4211] <... ioctl resumed>) = 0 [pid 4209] <... mount resumed>) = -1 EIO (Input/output error) [pid 4212] memfd_create("syzkaller", 0 [pid 4211] mkdir("./file0", 0777 [pid 4209] exit_group(0 [pid 4212] <... memfd_create resumed>) = 3 [pid 4211] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4209] <... exit_group resumed>) = ? [pid 4212] ftruncate(3, 0 [pid 4211] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4209] +++ exited with 0 +++ [pid 4212] <... ftruncate resumed>) = 0 [pid 4211] pipe2( [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4209, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4212] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4211] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4212] <... openat resumed>) = 4 [pid 4211] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4212] ioctl(4, LOOP_SET_FD, 3 [pid 4211] <... write resumed>) = 21 [pid 4212] <... ioctl resumed>) = 0 [pid 4211] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4210] <... mount resumed>) = -1 EIO (Input/output error) [pid 4212] mkdir("./file0", 0777 [pid 4210] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4210] <... exit_group resumed>) = ? [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4210] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4210, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4212] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] close(3 [pid 4212] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4212] pipe2( [pid 3619] <... close resumed>) = 0 [pid 4212] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4211] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... ioctl resumed>) = 0 [pid 4212] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4211] exit_group(0 [pid 3618] close(3 [pid 4212] <... write resumed>) = 21 [pid 4211] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4212] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4213 attached [pid 4211] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4213 [pid 3615] <... ioctl resumed>) = 0 [pid 4213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4214 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4211, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3 [pid 4213] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 ./strace-static-x86_64: Process 4214 attached [pid 4213] setpgid(0, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4213] <... setpgid resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 4215 attached [pid 4214] <... prctl resumed>) = 0 [pid 4213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4215 [pid 3616] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4216 [pid 4215] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4214] setpgid(0, 0 [pid 4213] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4215] <... prctl resumed>) = 0 [pid 4214] <... setpgid resumed>) = 0 [pid 4213] write(3, "1000", 4./strace-static-x86_64: Process 4216 attached [pid 4215] setpgid(0, 0 [pid 4214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4213] <... write resumed>) = 4 [pid 4216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4215] <... setpgid resumed>) = 0 [pid 4214] <... openat resumed>) = 3 [pid 4213] close(3 [pid 4216] <... prctl resumed>) = 0 [pid 4215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4214] write(3, "1000", 4 [pid 4213] <... close resumed>) = 0 [pid 4216] setpgid(0, 0 [pid 4215] <... openat resumed>) = 3 [pid 4214] <... write resumed>) = 4 [pid 4213] memfd_create("syzkaller", 0 [pid 4216] <... setpgid resumed>) = 0 [pid 4215] write(3, "1000", 4 [pid 4214] close(3 [pid 4213] <... memfd_create resumed>) = 3 [pid 4216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4215] <... write resumed>) = 4 [pid 4214] <... close resumed>) = 0 [pid 4213] ftruncate(3, 0 [pid 4216] <... openat resumed>) = 3 [pid 4215] close(3 [pid 4214] memfd_create("syzkaller", 0 [pid 4213] <... ftruncate resumed>) = 0 [pid 4212] <... mount resumed>) = -1 EIO (Input/output error) [pid 4216] write(3, "1000", 4 [pid 4215] <... close resumed>) = 0 [pid 4214] <... memfd_create resumed>) = 3 [pid 4213] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4212] exit_group(0 [pid 4216] <... write resumed>) = 4 [pid 4215] memfd_create("syzkaller", 0 [pid 4214] ftruncate(3, 0 [pid 4213] <... openat resumed>) = 4 [pid 4212] <... exit_group resumed>) = ? [pid 4216] close(3 [pid 4215] <... memfd_create resumed>) = 3 [pid 4214] <... ftruncate resumed>) = 0 [pid 4213] ioctl(4, LOOP_SET_FD, 3 [pid 4212] +++ exited with 0 +++ [pid 4216] <... close resumed>) = 0 [pid 4215] ftruncate(3, 0 [pid 4214] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4213] <... ioctl resumed>) = 0 [pid 4216] memfd_create("syzkaller", 0 [pid 4215] <... ftruncate resumed>) = 0 [pid 4214] <... openat resumed>) = 4 [pid 4213] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4212, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4216] <... memfd_create resumed>) = 3 [pid 4215] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4214] ioctl(4, LOOP_SET_FD, 3 [pid 4213] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4216] ftruncate(3, 0 [pid 4215] <... openat resumed>) = 4 [pid 4214] <... ioctl resumed>) = 0 [pid 4213] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... restart_syscall resumed>) = 0 [pid 4216] <... ftruncate resumed>) = 0 [pid 4215] ioctl(4, LOOP_SET_FD, 3 [pid 4214] mkdir("./file0", 0777 [pid 4213] pipe2( [pid 4216] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4215] <... ioctl resumed>) = 0 [pid 4214] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4213] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4216] <... openat resumed>) = 4 [pid 4215] mkdir("./file0", 0777 [pid 4214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4213] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4216] ioctl(4, LOOP_SET_FD, 3 [pid 4215] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4214] pipe2( [pid 4213] <... write resumed>) = 21 [pid 3617] <... openat resumed>) = 3 [pid 4216] <... ioctl resumed>) = 0 [pid 4215] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4214] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4213] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4216] mkdir("./file0", 0777 [pid 4215] pipe2( [pid 4214] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4216] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4216] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4216] pipe2([5, 6], 0) = 0 [pid 4216] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4215] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4216] <... write resumed>) = 21 [pid 4214] <... write resumed>) = 21 [pid 4216] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4215] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4214] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4215] <... write resumed>) = 21 [pid 4215] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4217 ./strace-static-x86_64: Process 4217 attached [pid 4217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4217] setpgid(0, 0) = 0 [pid 4217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4217] write(3, "1000", 4) = 4 [pid 4217] close(3) = 0 [pid 4217] memfd_create("syzkaller", 0) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4217] ftruncate(3, 0 [pid 3617] close(3 [pid 4217] <... ftruncate resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4217] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4217] <... openat resumed>) = 4 [pid 4217] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4218 [pid 4217] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4218 attached [pid 4217] mkdir("./file0", 0777 [pid 4213] <... mount resumed>) = -1 EIO (Input/output error) [pid 4218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4217] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4213] exit_group(0 [pid 4218] <... prctl resumed>) = 0 [pid 4217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4213] <... exit_group resumed>) = ? [pid 4218] setpgid(0, 0 [pid 4217] pipe2( [pid 4218] <... setpgid resumed>) = 0 [pid 4217] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4213] +++ exited with 0 +++ [pid 4218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4217] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4213, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4218] <... openat resumed>) = 3 [pid 4217] <... write resumed>) = 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4218] write(3, "1000", 4 [pid 4217] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... restart_syscall resumed>) = 0 [pid 4218] <... write resumed>) = 4 [pid 4218] close(3 [pid 4216] <... mount resumed>) = -1 EIO (Input/output error) [pid 4218] <... close resumed>) = 0 [pid 4216] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4218] memfd_create("syzkaller", 0 [pid 4216] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 4218] <... memfd_create resumed>) = 3 [pid 4216] +++ exited with 0 +++ [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4218] ftruncate(3, 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4216, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4218] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4218] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4218] <... openat resumed>) = 4 [pid 4218] ioctl(4, LOOP_SET_FD, 3 [pid 4215] <... mount resumed>) = -1 EIO (Input/output error) [pid 4218] <... ioctl resumed>) = 0 [pid 4218] mkdir("./file0", 0777 [pid 4215] exit_group(0 [pid 4218] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4215] <... exit_group resumed>) = ? [pid 4218] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4218] pipe2([5, 6], 0) = 0 [pid 4215] +++ exited with 0 +++ [pid 4218] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4215, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4218] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4214] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 4214] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4214] <... exit_group resumed>) = ? [pid 4214] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4214, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4219 [pid 3618] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4220 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4220 attached ./strace-static-x86_64: Process 4219 attached [pid 4217] <... mount resumed>) = -1 EIO (Input/output error) [pid 4217] exit_group(0) = ? [pid 4217] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4217, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4220] <... prctl resumed>) = 0 [pid 4219] <... prctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4220] setpgid(0, 0 [pid 4219] setpgid(0, 0 [pid 3620] close(3 [pid 4220] <... setpgid resumed>) = 0 [pid 4219] <... setpgid resumed>) = 0 [pid 4218] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 4220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4218] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4220] <... openat resumed>) = 3 [pid 4219] <... openat resumed>) = 3 [pid 4218] <... exit_group resumed>) = ? [pid 4220] write(3, "1000", 4 [pid 4219] write(3, "1000", 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4221 [pid 4220] <... write resumed>) = 4 [pid 4219] <... write resumed>) = 4 [pid 4218] +++ exited with 0 +++ [pid 4220] close(3 [pid 4219] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4218, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4221 attached [pid 4220] <... close resumed>) = 0 [pid 4219] <... close resumed>) = 0 [pid 4221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4220] memfd_create("syzkaller", 0 [pid 4219] memfd_create("syzkaller", 0 [pid 4221] <... prctl resumed>) = 0 [pid 4220] <... memfd_create resumed>) = 3 [pid 4219] <... memfd_create resumed>) = 3 [pid 4221] setpgid(0, 0 [pid 4220] ftruncate(3, 0 [pid 4219] ftruncate(3, 0 [pid 4221] <... setpgid resumed>) = 0 [pid 4220] <... ftruncate resumed>) = 0 [pid 4219] <... ftruncate resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4220] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4219] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] close(3 [pid 4221] <... openat resumed>) = 3 [pid 4220] <... openat resumed>) = 4 [pid 4219] <... openat resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4221] write(3, "1000", 4 [pid 4220] ioctl(4, LOOP_SET_FD, 3 [pid 4219] ioctl(4, LOOP_SET_FD, 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4221] <... write resumed>) = 4 [pid 4220] <... ioctl resumed>) = 0 [pid 4219] <... ioctl resumed>) = 0 [pid 4221] close(3 [pid 4220] mkdir("./file0", 0777 [pid 4219] mkdir("./file0", 0777 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4222 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4223 ./strace-static-x86_64: Process 4222 attached [pid 4221] <... close resumed>) = 0 [pid 4220] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4219] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4221] memfd_create("syzkaller", 0 [pid 4220] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4219] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4222] <... prctl resumed>) = 0 [pid 4221] <... memfd_create resumed>) = 3 [pid 4220] pipe2( [pid 4219] pipe2(./strace-static-x86_64: Process 4223 attached [pid 4222] setpgid(0, 0 [pid 4221] ftruncate(3, 0 [pid 4220] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4219] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4222] <... setpgid resumed>) = 0 [pid 4221] <... ftruncate resumed>) = 0 [pid 4220] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4219] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4223] <... prctl resumed>) = 0 [pid 4222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4221] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4220] <... write resumed>) = 21 [pid 4219] <... write resumed>) = 21 [pid 4223] setpgid(0, 0 [pid 4222] <... openat resumed>) = 3 [pid 4221] <... openat resumed>) = 4 [pid 4220] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4219] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4223] <... setpgid resumed>) = 0 [pid 4222] write(3, "1000", 4 [pid 4221] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4222] <... write resumed>) = 4 [pid 4221] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4223] <... openat resumed>) = 3 [pid 4222] close(3 [pid 4221] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 4223] write(3, "1000", 4 [pid 4222] <... close resumed>) = 0 [pid 4221] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4223] <... write resumed>) = 4 [pid 4222] memfd_create("syzkaller", 0 [pid 4221] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4223] close(3 [pid 4222] <... memfd_create resumed>) = 3 [pid 4221] pipe2( [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4224 [pid 4223] <... close resumed>) = 0 [pid 4222] ftruncate(3, 0 [pid 4221] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4223] memfd_create("syzkaller", 0 [pid 4222] <... ftruncate resumed>) = 0 [pid 4221] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4223] <... memfd_create resumed>) = 3 [pid 4223] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 4224 attached [pid 4223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4223] <... openat resumed>) = 4 [pid 4222] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4221] <... write resumed>) = 21 [pid 4220] <... mount resumed>) = -1 EIO (Input/output error) [pid 4224] <... prctl resumed>) = 0 [pid 4223] ioctl(4, LOOP_SET_FD, 3 [pid 4222] <... openat resumed>) = 4 [pid 4221] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4220] exit_group(0 [pid 4224] setpgid(0, 0 [pid 4223] <... ioctl resumed>) = 0 [pid 4222] ioctl(4, LOOP_SET_FD, 3 [pid 4220] <... exit_group resumed>) = ? [pid 4224] <... setpgid resumed>) = 0 [pid 4223] mkdir("./file0", 0777 [pid 4224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4223] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4220] +++ exited with 0 +++ [pid 4222] <... ioctl resumed>) = 0 [pid 4224] <... openat resumed>) = 3 [pid 4223] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4222] mkdir("./file0", 0777 [pid 4224] write(3, "1000", 4 [pid 4223] pipe2( [pid 4222] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4220, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4224] <... write resumed>) = 4 [pid 4223] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4224] close(3 [pid 4223] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 4224] <... close resumed>) = 0 [pid 4223] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4224] memfd_create("syzkaller", 0 [pid 4223] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4224] <... memfd_create resumed>) = 3 [pid 4222] pipe2( [pid 4224] ftruncate(3, 0 [pid 4222] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4224] <... ftruncate resumed>) = 0 [pid 4222] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4224] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4222] <... write resumed>) = 21 [pid 4224] <... openat resumed>) = 4 [pid 4222] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4224] ioctl(4, LOOP_SET_FD, 3 [pid 4219] <... mount resumed>) = -1 EIO (Input/output error) [pid 4219] exit_group(0 [pid 4224] <... ioctl resumed>) = 0 [pid 4219] <... exit_group resumed>) = ? [pid 4224] mkdir("./file0", 0777 [pid 4221] <... mount resumed>) = -1 EIO (Input/output error) [pid 4219] +++ exited with 0 +++ [pid 4221] exit_group(0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4219, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4221] <... exit_group resumed>) = ? [pid 4224] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4221] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4224] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4221, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4224] pipe2([5, 6], 0) = 0 [pid 4224] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4224] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 4223] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4223] exit_group(0) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4225 [pid 4223] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4223, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4222] <... mount resumed>) = -1 EIO (Input/output error) [pid 4222] exit_group(0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4222] <... exit_group resumed>) = ? [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4222] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4222, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3620] close(3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4226 ./strace-static-x86_64: Process 4225 attached [pid 4225] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 4226 attached [pid 4226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4225] setpgid(0, 0 [pid 4226] <... prctl resumed>) = 0 [pid 4225] <... setpgid resumed>) = 0 [pid 4226] setpgid(0, 0) = 0 [pid 4226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 4226] <... openat resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4225] <... openat resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4227 [pid 4226] write(3, "1000", 4 [pid 4225] write(3, "1000", 4 [pid 4226] <... write resumed>) = 4 ./strace-static-x86_64: Process 4227 attached [pid 4226] close(3 [pid 4225] <... write resumed>) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 4226] <... close resumed>) = 0 [pid 4226] memfd_create("syzkaller", 0) = 3 [pid 4226] ftruncate(3, 0 [pid 4227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4226] <... ftruncate resumed>) = 0 [pid 4225] close(3 [pid 4227] <... prctl resumed>) = 0 [pid 3616] close(3 [pid 4226] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4226] ioctl(4, LOOP_SET_FD, 3 [pid 4225] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4227] setpgid(0, 0 [pid 4226] <... ioctl resumed>) = 0 [pid 4226] mkdir("./file0", 0777 [pid 4225] memfd_create("syzkaller", 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4227] <... setpgid resumed>) = 0 [pid 4226] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4225] <... memfd_create resumed>) = 3 [pid 4226] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4226] pipe2([5, 6], 0) = 0 [pid 4226] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4226] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4225] ftruncate(3, 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4228 [pid 4227] <... openat resumed>) = 3 [pid 4227] write(3, "1000", 4 [pid 4225] <... ftruncate resumed>) = 0 [pid 4224] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4228 attached [pid 4227] <... write resumed>) = 4 [pid 4225] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4224] exit_group(0) = ? [pid 4228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4227] close(3 [pid 4225] <... openat resumed>) = 4 [pid 4224] +++ exited with 0 +++ [pid 4228] <... prctl resumed>) = 0 [pid 4227] <... close resumed>) = 0 [pid 4225] ioctl(4, LOOP_SET_FD, 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4224, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4228] setpgid(0, 0 [pid 4227] memfd_create("syzkaller", 0 [pid 4225] <... ioctl resumed>) = 0 [pid 4227] <... memfd_create resumed>) = 3 [pid 4225] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4228] <... setpgid resumed>) = 0 [pid 4227] ftruncate(3, 0 [pid 4225] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4227] <... ftruncate resumed>) = 0 [pid 4225] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 4228] <... openat resumed>) = 3 [pid 4227] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4225] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4228] write(3, "1000", 4 [pid 4226] <... mount resumed>) = -1 EIO (Input/output error) [pid 4227] <... openat resumed>) = 4 [pid 4225] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 4228] <... write resumed>) = 4 [pid 4225] <... write resumed>) = 21 [pid 4227] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... close resumed>) = 0 [pid 4226] exit_group(0 [pid 4228] close(3 [pid 4226] <... exit_group resumed>) = ? [pid 4225] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4228] <... close resumed>) = 0 [pid 4227] <... ioctl resumed>) = 0 [pid 4226] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4226, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4228] memfd_create("syzkaller", 0 [pid 4227] mkdir("./file0", 0777./strace-static-x86_64: Process 4229 attached ) = -1 EEXIST (File exists) [pid 4228] <... memfd_create resumed>) = 3 [pid 4227] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4229 [pid 4229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4228] ftruncate(3, 0 [pid 4227] pipe2( [pid 4228] <... ftruncate resumed>) = 0 [pid 4229] <... prctl resumed>) = 0 [pid 4227] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4228] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4227] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4228] <... openat resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4227] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 4228] ioctl(4, LOOP_SET_FD, 3 [pid 4227] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4229] setpgid(0, 0 [pid 4228] <... ioctl resumed>) = 0 [pid 4229] <... setpgid resumed>) = 0 [pid 4228] mkdir("./file0", 0777 [pid 4229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4228] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4229] <... openat resumed>) = 3 [pid 4228] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4229] write(3, "1000", 4) = 4 [pid 4229] close(3) = 0 [pid 4229] memfd_create("syzkaller", 0) = 3 [pid 4229] ftruncate(3, 0 [pid 4228] pipe2( [pid 4229] <... ftruncate resumed>) = 0 [pid 4229] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4228] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4229] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4229] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4229] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4229] pipe2([5, 6], 0) = 0 [pid 4229] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4229] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4228] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4225] <... mount resumed>) = -1 EIO (Input/output error) [pid 4228] <... write resumed>) = 21 [pid 4228] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4225] exit_group(0) = ? [pid 4225] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4225, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] close(3) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4230 [pid 4229] <... mount resumed>) = -1 EIO (Input/output error) [pid 4229] exit_group(0) = ? [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4229] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4231 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4229, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 ./strace-static-x86_64: Process 4231 attached [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4231] setpgid(0, 0) = 0 [pid 4231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4230 attached ) = 3 [pid 4231] write(3, "1000", 4 [pid 4230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4231] <... write resumed>) = 4 [pid 4231] close(3) = 0 [pid 4231] memfd_create("syzkaller", 0) = 3 [pid 4231] ftruncate(3, 0) = 0 [pid 4231] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4231] ioctl(4, LOOP_SET_FD, 3 [pid 4230] <... prctl resumed>) = 0 [pid 4230] setpgid(0, 0 [pid 4231] <... ioctl resumed>) = 0 [pid 4230] <... setpgid resumed>) = 0 [pid 4231] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4231] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4231] pipe2([5, 6], 0) = 0 [pid 4227] <... mount resumed>) = -1 EIO (Input/output error) [pid 4231] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4227] exit_group(0 [pid 4231] <... write resumed>) = 21 [pid 4227] <... exit_group resumed>) = ? [pid 4231] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4227] +++ exited with 0 +++ [pid 4230] <... openat resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4227, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4230] write(3, "1000", 4) = 4 [pid 3618] <... ioctl resumed>) = 0 [pid 4230] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4230] <... close resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4230] memfd_create("syzkaller", 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] close(3 [pid 3615] close(3 [pid 4230] <... memfd_create resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4230] ftruncate(3, 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4230] <... ftruncate resumed>) = 0 [pid 4230] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4230] <... openat resumed>) = 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4232 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4233 [pid 4230] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4232 attached ) = 0 ./strace-static-x86_64: Process 4233 attached [pid 4232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4232] setpgid(0, 0) = 0 [pid 4230] mkdir("./file0", 0777 [pid 4232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4230] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4230] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4232] <... openat resumed>) = 3 [pid 4230] pipe2( [pid 4232] write(3, "1000", 4 [pid 4230] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4230] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4232] <... write resumed>) = 4 [pid 4230] <... write resumed>) = 21 [pid 4232] close(3 [pid 4230] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4232] <... close resumed>) = 0 [pid 4232] memfd_create("syzkaller", 0) = 3 [pid 4232] ftruncate(3, 0) = 0 [pid 4233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4232] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4228] <... mount resumed>) = -1 EIO (Input/output error) [pid 4228] exit_group(0 [pid 4233] <... prctl resumed>) = 0 [pid 4232] <... openat resumed>) = 4 [pid 4228] <... exit_group resumed>) = ? [pid 4233] setpgid(0, 0 [pid 4232] ioctl(4, LOOP_SET_FD, 3 [pid 4228] +++ exited with 0 +++ [pid 4233] <... setpgid resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4228, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... ioctl resumed>) = 0 [pid 4232] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4233] <... openat resumed>) = 3 [pid 4232] mkdir("./file0", 0777 [pid 4231] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4233] write(3, "1000", 4 [pid 4232] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4231] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 4233] <... write resumed>) = 4 [pid 4232] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4231] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4233] close(3 [pid 4232] pipe2( [pid 4231] +++ exited with 0 +++ [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4233] <... close resumed>) = 0 [pid 4232] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4231, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4234 [pid 3616] <... openat resumed>) = 3 [pid 4233] memfd_create("syzkaller", 0 [pid 4232] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4233] <... memfd_create resumed>) = 3 [pid 4232] <... write resumed>) = 21 [pid 4233] ftruncate(3, 0 [pid 4232] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4233] <... ftruncate resumed>) = 0 [pid 4233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4233] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... openat resumed>) = 3 [pid 4233] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4233] mkdir("./file0", 0777 [pid 3620] <... ioctl resumed>) = 0 [pid 4233] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] close(3 [pid 4233] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... close resumed>) = 0 [pid 4233] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4233] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4233] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4235 ./strace-static-x86_64: Process 4234 attached [pid 4233] <... write resumed>) = 21 [pid 4233] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4235 attached [pid 4235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4235] setpgid(0, 0) = 0 [pid 4235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4234] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4235] <... openat resumed>) = 3 [pid 4234] <... prctl resumed>) = 0 [pid 4235] write(3, "1000", 4 [pid 4234] setpgid(0, 0 [pid 4235] <... write resumed>) = 4 [pid 4234] <... setpgid resumed>) = 0 [pid 4235] close(3 [pid 4234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4235] <... close resumed>) = 0 [pid 4234] <... openat resumed>) = 3 [pid 4235] memfd_create("syzkaller", 0 [pid 4234] write(3, "1000", 4 [pid 4235] <... memfd_create resumed>) = 3 [pid 4234] <... write resumed>) = 4 [pid 4235] ftruncate(3, 0 [pid 4234] close(3 [pid 4230] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4235] <... ftruncate resumed>) = 0 [pid 4234] <... close resumed>) = 0 [pid 4230] exit_group(0 [pid 3616] close(3 [pid 4235] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4234] memfd_create("syzkaller", 0 [pid 4230] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4235] <... openat resumed>) = 4 [pid 4234] <... memfd_create resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4235] ioctl(4, LOOP_SET_FD, 3 [pid 4234] ftruncate(3, 0 [pid 4230] +++ exited with 0 +++ ./strace-static-x86_64: Process 4236 attached [pid 4235] <... ioctl resumed>) = 0 [pid 4234] <... ftruncate resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4236 [pid 4236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4235] mkdir("./file0", 0777 [pid 4234] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4230, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4236] <... prctl resumed>) = 0 [pid 4235] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4234] <... openat resumed>) = 4 [pid 4233] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4236] setpgid(0, 0 [pid 4235] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4234] ioctl(4, LOOP_SET_FD, 3 [pid 4233] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 4236] <... setpgid resumed>) = 0 [pid 4235] pipe2( [pid 4234] <... ioctl resumed>) = 0 [pid 4233] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4235] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4234] mkdir("./file0", 0777 [pid 4236] <... openat resumed>) = 3 [pid 4235] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4234] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4233] +++ exited with 0 +++ [pid 4236] write(3, "1000", 4 [pid 4235] <... write resumed>) = 21 [pid 4234] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4236] <... write resumed>) = 4 [pid 4235] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4234] pipe2( [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4233, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4236] close(3 [pid 4234] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4232] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4236] <... close resumed>) = 0 [pid 4234] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4232] exit_group(0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4236] memfd_create("syzkaller", 0 [pid 4234] <... write resumed>) = 21 [pid 4232] <... exit_group resumed>) = ? [pid 4236] <... memfd_create resumed>) = 3 [pid 4234] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4232] +++ exited with 0 +++ [pid 4236] ftruncate(3, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4232, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4236] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4236] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4236] <... openat resumed>) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4236] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... openat resumed>) = 3 [pid 4236] <... ioctl resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4236] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4236] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4235] <... mount resumed>) = -1 EIO (Input/output error) [pid 4234] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4236] pipe2( [pid 4234] exit_group(0 [pid 4236] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4234] <... exit_group resumed>) = ? [pid 4236] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4235] exit_group(0 [pid 4234] +++ exited with 0 +++ [pid 3617] close(3 [pid 4236] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4234, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4235] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4235] +++ exited with 0 +++ [pid 3618] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4235, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... openat resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4237 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3620] <... restart_syscall resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4238 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4239 [pid 3619] close(3./strace-static-x86_64: Process 4237 attached ) = 0 [pid 4237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4239 attached ./strace-static-x86_64: Process 4238 attached [pid 4237] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4238] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4237] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4240 [pid 4238] <... prctl resumed>) = 0 [pid 4237] <... setpgid resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4239] <... prctl resumed>) = 0 [pid 4238] setpgid(0, 0 [pid 4237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] close(3 [pid 4239] setpgid(0, 0 [pid 4238] <... setpgid resumed>) = 0 [pid 4237] <... openat resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 4239] <... setpgid resumed>) = 0 [pid 4238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4237] write(3, "1000", 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4240 attached [pid 4239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4238] <... openat resumed>) = 3 [pid 4237] <... write resumed>) = 4 [pid 4240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4239] <... openat resumed>) = 3 [pid 4238] write(3, "1000", 4 [pid 4237] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4241 [pid 4240] <... prctl resumed>) = 0 [pid 4239] write(3, "1000", 4 [pid 4238] <... write resumed>) = 4 [pid 4237] <... close resumed>) = 0 [pid 4240] setpgid(0, 0 [pid 4239] <... write resumed>) = 4 [pid 4238] close(3 [pid 4237] memfd_create("syzkaller", 0 [pid 4239] close(3 [pid 4238] <... close resumed>) = 0 [pid 4237] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 4241 attached [pid 4240] <... setpgid resumed>) = 0 [pid 4239] <... close resumed>) = 0 [pid 4238] memfd_create("syzkaller", 0 [pid 4237] ftruncate(3, 0 [pid 4241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4239] memfd_create("syzkaller", 0 [pid 4238] <... memfd_create resumed>) = 3 [pid 4237] <... ftruncate resumed>) = 0 [pid 4241] <... prctl resumed>) = 0 [pid 4240] <... openat resumed>) = 3 [pid 4239] <... memfd_create resumed>) = 3 [pid 4238] ftruncate(3, 0 [pid 4237] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4241] setpgid(0, 0 [pid 4240] write(3, "1000", 4 [pid 4239] ftruncate(3, 0 [pid 4238] <... ftruncate resumed>) = 0 [pid 4237] <... openat resumed>) = 4 [pid 4241] <... setpgid resumed>) = 0 [pid 4240] <... write resumed>) = 4 [pid 4239] <... ftruncate resumed>) = 0 [pid 4238] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4237] ioctl(4, LOOP_SET_FD, 3 [pid 4241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4238] <... openat resumed>) = 4 [pid 4237] <... ioctl resumed>) = 0 [pid 4241] <... openat resumed>) = 3 [pid 4239] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4238] ioctl(4, LOOP_SET_FD, 3 [pid 4237] mkdir("./file0", 0777 [pid 4241] write(3, "1000", 4 [pid 4240] close(3 [pid 4239] <... openat resumed>) = 4 [pid 4238] <... ioctl resumed>) = 0 [pid 4237] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4241] <... write resumed>) = 4 [pid 4240] <... close resumed>) = 0 [pid 4239] ioctl(4, LOOP_SET_FD, 3 [pid 4238] mkdir("./file0", 0777 [pid 4237] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4241] close(3 [pid 4240] memfd_create("syzkaller", 0 [pid 4239] <... ioctl resumed>) = 0 [pid 4238] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4237] pipe2( [pid 4241] <... close resumed>) = 0 [pid 4238] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4237] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4241] memfd_create("syzkaller", 0 [pid 4240] <... memfd_create resumed>) = 3 [pid 4239] mkdir("./file0", 0777 [pid 4238] pipe2( [pid 4237] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4241] <... memfd_create resumed>) = 3 [pid 4240] ftruncate(3, 0 [pid 4239] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4238] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4237] <... write resumed>) = 21 [pid 4241] ftruncate(3, 0 [pid 4240] <... ftruncate resumed>) = 0 [pid 4239] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4238] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4237] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4236] <... mount resumed>) = -1 EIO (Input/output error) [pid 4241] <... ftruncate resumed>) = 0 [pid 4240] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4239] pipe2( [pid 4238] <... write resumed>) = 21 [pid 4236] exit_group(0 [pid 4241] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4240] <... openat resumed>) = 4 [pid 4239] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4238] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4236] <... exit_group resumed>) = ? [pid 4241] <... openat resumed>) = 4 [pid 4240] ioctl(4, LOOP_SET_FD, 3 [pid 4239] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4236] +++ exited with 0 +++ [pid 4241] ioctl(4, LOOP_SET_FD, 3 [pid 4240] <... ioctl resumed>) = 0 [pid 4239] <... write resumed>) = 21 [pid 4241] <... ioctl resumed>) = 0 [pid 4240] mkdir("./file0", 0777 [pid 4239] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4236, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4241] mkdir("./file0", 0777 [pid 4240] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4241] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4240] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... restart_syscall resumed>) = 0 [pid 4241] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4240] pipe2( [pid 4241] pipe2( [pid 4240] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4241] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4240] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4241] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4240] <... write resumed>) = 21 [pid 4237] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4241] <... write resumed>) = 21 [pid 4240] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4237] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4241] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4237] <... exit_group resumed>) = ? [pid 3616] <... ioctl resumed>) = 0 [pid 4237] +++ exited with 0 +++ [pid 3616] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4237, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... close resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... restart_syscall resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4242 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = 0 [pid 3617] close(3) = 0 ./strace-static-x86_64: Process 4242 attached [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4243 [pid 4242] setpgid(0, 0) = 0 [pid 4242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4242] write(3, "1000", 4) = 4 [pid 4242] close(3) = 0 ./strace-static-x86_64: Process 4243 attached [pid 4242] memfd_create("syzkaller", 0 [pid 4243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4242] <... memfd_create resumed>) = 3 [pid 4243] <... prctl resumed>) = 0 [pid 4242] ftruncate(3, 0 [pid 4243] setpgid(0, 0 [pid 4242] <... ftruncate resumed>) = 0 [pid 4243] <... setpgid resumed>) = 0 [pid 4242] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4242] <... openat resumed>) = 4 [pid 4243] <... openat resumed>) = 3 [pid 4242] ioctl(4, LOOP_SET_FD, 3 [pid 4243] write(3, "1000", 4 [pid 4242] <... ioctl resumed>) = 0 [pid 4243] <... write resumed>) = 4 [pid 4242] mkdir("./file0", 0777 [pid 4243] close(3 [pid 4242] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4243] <... close resumed>) = 0 [pid 4242] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4243] memfd_create("syzkaller", 0 [pid 4242] pipe2( [pid 4238] <... mount resumed>) = -1 EIO (Input/output error) [pid 4243] <... memfd_create resumed>) = 3 [pid 4242] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4238] exit_group(0 [pid 4243] ftruncate(3, 0 [pid 4242] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4238] <... exit_group resumed>) = ? [pid 4243] <... ftruncate resumed>) = 0 [pid 4242] <... write resumed>) = 21 [pid 4243] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4242] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4238] +++ exited with 0 +++ [pid 4243] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4238, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4243] ioctl(4, LOOP_SET_FD, 3 [pid 4239] <... mount resumed>) = -1 EIO (Input/output error) [pid 4243] <... ioctl resumed>) = 0 [pid 4243] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4243] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 4243] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4239] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4243] pipe2( [pid 4239] <... exit_group resumed>) = ? [pid 4243] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4243] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4243] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4239] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4239, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4244 ./strace-static-x86_64: Process 4244 attached [pid 4240] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4240] exit_group(0 [pid 3618] close(3 [pid 4240] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4240] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4244] <... prctl resumed>) = 0 [pid 4244] setpgid(0, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4240, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4244] <... setpgid resumed>) = 0 [pid 4244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4244] write(3, "1000", 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4245 [pid 4244] <... write resumed>) = 4 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4244] close(3) = 0 [pid 4244] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4244] <... memfd_create resumed>) = 3 [pid 3619] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4245 attached [pid 4244] ftruncate(3, 0 [pid 4242] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4244] <... ftruncate resumed>) = 0 [pid 4242] exit_group(0 [pid 4245] <... prctl resumed>) = 0 [pid 4244] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4242] <... exit_group resumed>) = ? [pid 4245] setpgid(0, 0 [pid 4244] <... openat resumed>) = 4 [pid 4242] +++ exited with 0 +++ [pid 4244] ioctl(4, LOOP_SET_FD, 3 [pid 4245] <... setpgid resumed>) = 0 [pid 4244] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4242, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4244] mkdir("./file0", 0777 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4244] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4241] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... restart_syscall resumed>) = 0 [pid 4245] <... openat resumed>) = 3 [pid 4244] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4241] exit_group(0 [pid 4245] write(3, "1000", 4 [pid 4244] pipe2( [pid 4241] <... exit_group resumed>) = ? [pid 4244] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4241] +++ exited with 0 +++ [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4244] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 4244] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4241, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4245] <... write resumed>) = 4 [pid 4244] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 4245] close(3 [pid 4243] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4245] <... close resumed>) = 0 [pid 4243] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] close(3 [pid 3616] <... close resumed>) = 0 [pid 4245] memfd_create("syzkaller", 0 [pid 4243] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4245] <... memfd_create resumed>) = 3 [pid 4243] +++ exited with 0 +++ [pid 3620] close(3 [pid 4245] ftruncate(3, 0 [pid 3620] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4246 [pid 4245] <... ftruncate resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4243, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4245] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4247 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4245] <... openat resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4248 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4245] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4245] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4245] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4248 attached ./strace-static-x86_64: Process 4246 attached [pid 4245] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4245] pipe2( [pid 4248] <... prctl resumed>) = 0 [pid 4246] <... prctl resumed>) = 0 [pid 4248] setpgid(0, 0 [pid 4246] setpgid(0, 0 [pid 4248] <... setpgid resumed>) = 0 [pid 4246] <... setpgid resumed>) = 0 [pid 4248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4248] <... openat resumed>) = 3 [pid 4246] <... openat resumed>) = 3 [pid 4248] write(3, "1000", 4 [pid 4246] write(3, "1000", 4 [pid 4245] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4244] <... mount resumed>) = -1 EIO (Input/output error) [pid 4248] <... write resumed>) = 4 [pid 4246] <... write resumed>) = 4 [pid 4245] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4244] exit_group(0 [pid 4248] close(3 [pid 4246] close(3 [pid 4245] <... write resumed>) = 21 [pid 4244] <... exit_group resumed>) = ? [pid 4248] <... close resumed>) = 0 [pid 4246] <... close resumed>) = 0 [pid 4245] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4244] +++ exited with 0 +++ [pid 4248] memfd_create("syzkaller", 0 [pid 4246] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4244, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4248] <... memfd_create resumed>) = 3 [pid 4246] <... memfd_create resumed>) = 3 [pid 4248] ftruncate(3, 0 [pid 4246] ftruncate(3, 0 [pid 4248] <... ftruncate resumed>) = 0 [pid 4246] <... ftruncate resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4248] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4246] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 4248] <... openat resumed>) = 4 [pid 4246] <... openat resumed>) = 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4248] ioctl(4, LOOP_SET_FD, 3 [pid 4246] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4248] <... ioctl resumed>) = 0 [pid 4246] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4248] mkdir("./file0", 0777 [pid 4246] mkdir("./file0", 0777 [pid 3615] <... close resumed>) = 0 [pid 4248] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4246] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4248] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4246] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4248] pipe2( [pid 4246] pipe2( [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4249 [pid 4248] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4246] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4248] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4246] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4248] <... write resumed>) = 21 [pid 4246] <... write resumed>) = 21 [pid 4248] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4246] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4249 attached [pid 4249] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4249] setpgid(0, 0) = 0 [pid 4249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4249] write(3, "1000", 4) = 4 [pid 4249] close(3) = 0 [pid 4249] memfd_create("syzkaller", 0) = 3 [pid 4249] ftruncate(3, 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4249] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] close(3 [pid 4249] <... openat resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 4249] ioctl(4, LOOP_SET_FD, 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4249] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 4249] ioctl(4, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4250 [pid 4249] <... ioctl resumed>) = 0 [pid 4249] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 4247 attached [pid 4249] close(4) = 0 [pid 4247] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4250 attached [pid 4249] close(3 [pid 4247] <... prctl resumed>) = 0 [pid 4250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4249] <... close resumed>) = 0 [pid 4247] setpgid(0, 0 [pid 4250] <... prctl resumed>) = 0 [pid 4249] pipe2( [pid 4247] <... setpgid resumed>) = 0 [pid 4249] <... pipe2 resumed>[3, 4], 0) = 0 [pid 4247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4250] setpgid(0, 0 [pid 4249] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4247] <... openat resumed>) = 3 [pid 4250] <... setpgid resumed>) = 0 [pid 4249] <... write resumed>) = 21 [pid 4247] write(3, "1000", 4 [pid 4249] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 4247] <... write resumed>) = 4 [pid 4250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4247] close(3) = 0 [pid 4247] memfd_create("syzkaller", 0) = 3 [pid 4247] ftruncate(3, 0) = 0 [pid 4250] <... openat resumed>) = 3 [pid 4247] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4250] write(3, "1000", 4 [pid 4247] <... openat resumed>) = 4 [pid 4250] <... write resumed>) = 4 [pid 4247] ioctl(4, LOOP_SET_FD, 3 [pid 4250] close(3 [pid 4247] <... ioctl resumed>) = 0 [pid 4250] <... close resumed>) = 0 [pid 4247] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4247] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4247] pipe2( [pid 4250] memfd_create("syzkaller", 0 [pid 4247] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4247] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4250] <... memfd_create resumed>) = 3 [pid 4247] <... write resumed>) = 21 [pid 4250] ftruncate(3, 0 [pid 4247] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4250] <... ftruncate resumed>) = 0 [pid 4250] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4245] <... mount resumed>) = -1 EIO (Input/output error) [pid 4245] exit_group(0) = ? [pid 4245] +++ exited with 0 +++ [pid 4250] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4245, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4250] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4250] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4250] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4250] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4250] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4250] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 4250] <... write resumed>) = 21 [pid 3618] <... close resumed>) = 0 [pid 4250] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4251 attached , child_tidptr=0x5555570a1690) = 4251 [pid 4251] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4251] setpgid(0, 0) = 0 [pid 4251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4246] <... mount resumed>) = -1 EIO (Input/output error) [pid 4246] exit_group(0) = ? [pid 4246] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4246, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4251] write(3, "1000", 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4251] <... write resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4251] close(3 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4251] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4251] memfd_create("syzkaller", 0 [pid 3616] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4251] <... memfd_create resumed>) = 3 [pid 4251] ftruncate(3, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4252 [pid 4251] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4251] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4251] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4251] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4251] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 4252 attached [pid 4251] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4252] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4251] <... write resumed>) = 21 [pid 4252] <... prctl resumed>) = 0 [pid 4251] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4252] setpgid(0, 0) = 0 [pid 4252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4252] write(3, "1000", 4) = 4 [pid 4252] close(3) = 0 [pid 4252] memfd_create("syzkaller", 0) = 3 [pid 4252] ftruncate(3, 0) = 0 [pid 4252] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4252] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4252] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4252] pipe2([5, 6], 0) = 0 [pid 4252] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4252] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4249] <... mount resumed>) = -1 EIO (Input/output error) [pid 4249] exit_group(0) = ? [pid 4249] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4249, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4248] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4253 [pid 4248] exit_group(0) = ? ./strace-static-x86_64: Process 4253 attached [pid 4253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4248] +++ exited with 0 +++ [pid 4253] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4248, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4253] <... setpgid resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... restart_syscall resumed>) = 0 [pid 4253] <... openat resumed>) = 3 [pid 4253] write(3, "1000", 4) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4253] close(3 [pid 3620] <... openat resumed>) = 3 [pid 4253] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4253] memfd_create("syzkaller", 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4253] <... memfd_create resumed>) = 3 [pid 3620] close(3 [pid 4253] ftruncate(3, 0 [pid 3620] <... close resumed>) = 0 [pid 4253] <... ftruncate resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4253] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4254 [pid 4253] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4253] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4253] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4254 attached [pid 4253] pipe2( [pid 4254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4253] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4247] <... mount resumed>) = -1 EIO (Input/output error) [pid 4254] <... prctl resumed>) = 0 [pid 4253] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4247] exit_group(0 [pid 4254] setpgid(0, 0 [pid 4253] <... write resumed>) = 21 [pid 4247] <... exit_group resumed>) = ? [pid 4254] <... setpgid resumed>) = 0 [pid 4253] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4247] +++ exited with 0 +++ [pid 4254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4247, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4254] <... openat resumed>) = 3 [pid 4254] write(3, "1000", 4) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4254] close(3 [pid 3619] <... openat resumed>) = 3 [pid 4254] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4254] memfd_create("syzkaller", 0) = 3 [pid 4254] ftruncate(3, 0) = 0 [pid 4254] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4254] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3 [pid 4254] <... ioctl resumed>) = 0 [pid 4254] mkdir("./file0", 0777 [pid 3619] <... close resumed>) = 0 [pid 4254] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4254] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4254] pipe2([5, 6], 0) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4254] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4251] <... mount resumed>) = -1 EIO (Input/output error) [pid 4254] <... write resumed>) = 21 [pid 4251] exit_group(0 [pid 4254] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4251] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4255 [pid 4251] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4251, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4255 attached [pid 4255] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4255] setpgid(0, 0) = 0 [pid 4255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4255] write(3, "1000", 4) = 4 [pid 4255] close(3) = 0 [pid 4255] memfd_create("syzkaller", 0) = 3 [pid 4250] <... mount resumed>) = -1 EIO (Input/output error) [pid 4250] exit_group(0 [pid 4255] ftruncate(3, 0 [pid 4250] <... exit_group resumed>) = ? [pid 4255] <... ftruncate resumed>) = 0 [pid 4250] +++ exited with 0 +++ [pid 4255] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4250, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4255] <... openat resumed>) = 4 [pid 3618] close(3 [pid 4255] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4255] <... ioctl resumed>) = 0 [pid 4252] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 4252] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4255] mkdir("./file0", 0777 [pid 4252] <... exit_group resumed>) = ? [pid 4255] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4252] +++ exited with 0 +++ [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4256 [pid 4255] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4255] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4252, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4255] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4255] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 4255] <... write resumed>) = 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4255] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4257 ./strace-static-x86_64: Process 4257 attached ./strace-static-x86_64: Process 4256 attached [pid 4257] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4257] setpgid(0, 0) = 0 [pid 4256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4257] write(3, "1000", 4) = 4 [pid 4257] close(3) = 0 [pid 4257] memfd_create("syzkaller", 0) = 3 [pid 4257] ftruncate(3, 0) = 0 [pid 4257] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4256] <... prctl resumed>) = 0 [pid 4257] <... openat resumed>) = 4 [pid 4257] ioctl(4, LOOP_SET_FD, 3 [pid 4256] setpgid(0, 0) = 0 [pid 4256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4256] write(3, "1000", 4) = 4 [pid 4256] close(3) = 0 [pid 4256] memfd_create("syzkaller", 0) = 3 [pid 4256] ftruncate(3, 0) = 0 [pid 4253] <... mount resumed>) = -1 EIO (Input/output error) [pid 4253] exit_group(0) = ? [pid 4253] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4253, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 4256] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4257] <... ioctl resumed>) = 0 [pid 4256] <... openat resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 4257] mkdir("./file0", 0777 [pid 4256] ioctl(4, LOOP_SET_FD, 3 [pid 3617] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4258 ./strace-static-x86_64: Process 4258 attached [pid 4257] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4256] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4257] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4256] mkdir("./file0", 0777 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4258] <... prctl resumed>) = 0 [pid 4257] pipe2( [pid 4256] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4258] setpgid(0, 0 [pid 4257] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4256] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4259 [pid 4258] <... setpgid resumed>) = 0 [pid 4257] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4256] pipe2( [pid 4258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4257] <... write resumed>) = 21 [pid 4256] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4254] <... mount resumed>) = -1 EIO (Input/output error) [pid 4257] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4256] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4258] <... openat resumed>) = 3 [pid 4256] <... write resumed>) = 21 ./strace-static-x86_64: Process 4259 attached [pid 4258] write(3, "1000", 4 [pid 4256] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4254] exit_group(0 [pid 4259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4258] <... write resumed>) = 4 [pid 4254] <... exit_group resumed>) = ? [pid 4259] <... prctl resumed>) = 0 [pid 4258] close(3 [pid 4259] setpgid(0, 0 [pid 4258] <... close resumed>) = 0 [pid 4254] +++ exited with 0 +++ [pid 4259] <... setpgid resumed>) = 0 [pid 4258] memfd_create("syzkaller", 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4254, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4258] <... memfd_create resumed>) = 3 [pid 4259] <... openat resumed>) = 3 [pid 4258] ftruncate(3, 0 [pid 4259] write(3, "1000", 4 [pid 4258] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4259] <... write resumed>) = 4 [pid 4258] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 4259] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4259] <... close resumed>) = 0 [pid 4258] <... openat resumed>) = 4 [pid 4259] memfd_create("syzkaller", 0 [pid 4258] ioctl(4, LOOP_SET_FD, 3 [pid 4259] <... memfd_create resumed>) = 3 [pid 4258] <... ioctl resumed>) = 0 [pid 4259] ftruncate(3, 0 [pid 4258] mkdir("./file0", 0777 [pid 4255] <... mount resumed>) = -1 EIO (Input/output error) [pid 4259] <... ftruncate resumed>) = 0 [pid 4258] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4255] exit_group(0 [pid 4259] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4258] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4255] <... exit_group resumed>) = ? [pid 4259] <... openat resumed>) = 4 [pid 4258] pipe2( [pid 4259] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4258] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4255] +++ exited with 0 +++ [pid 4259] mkdir("./file0", 0777 [pid 4258] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4259] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4258] <... write resumed>) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4255, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4259] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4258] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4259] pipe2([5, 6], 0) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4259] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4257] <... mount resumed>) = -1 EIO (Input/output error) [pid 4259] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4257] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4257] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4257] +++ exited with 0 +++ [pid 3620] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4257, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4260 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4256] <... mount resumed>) = -1 EIO (Input/output error) [pid 4256] exit_group(0) = ? ./strace-static-x86_64: Process 4260 attached [pid 4260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4260] setpgid(0, 0 [pid 4256] +++ exited with 0 +++ [pid 4260] <... setpgid resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4256, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4260] write(3, "1000", 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4260] <... write resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4260] close(3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4260] <... close resumed>) = 0 [pid 4260] memfd_create("syzkaller", 0) = 3 [pid 4260] ftruncate(3, 0) = 0 [pid 4260] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4260] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4260] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4260] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4260] pipe2([5, 6], 0) = 0 [pid 4260] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4260] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4258] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3619] close(3 [pid 4258] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4258] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4261 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4258] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4258, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4262 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4263 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4263 attached [pid 4263] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4261 attached ) = 0 [pid 4261] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4263] setpgid(0, 0 [pid 4261] <... prctl resumed>) = 0 [pid 4263] <... setpgid resumed>) = 0 [pid 4261] setpgid(0, 0 [pid 4263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4261] <... setpgid resumed>) = 0 [pid 4263] <... openat resumed>) = 3 [pid 4261] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4263] write(3, "1000", 4 [pid 4261] <... openat resumed>) = 3 [pid 4263] <... write resumed>) = 4 [pid 4261] write(3, "1000", 4 [pid 4263] close(3 [pid 4261] <... write resumed>) = 4 [pid 4263] <... close resumed>) = 0 [pid 4261] close(3 [pid 4263] memfd_create("syzkaller", 0 [pid 4261] <... close resumed>) = 0 [pid 4263] <... memfd_create resumed>) = 3 [pid 4261] memfd_create("syzkaller", 0 [pid 4263] ftruncate(3, 0 [pid 4261] <... memfd_create resumed>) = 3 [pid 4263] <... ftruncate resumed>) = 0 [pid 4261] ftruncate(3, 0 [pid 4263] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4261] <... ftruncate resumed>) = 0 [pid 4263] <... openat resumed>) = 4 [pid 4261] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4263] ioctl(4, LOOP_SET_FD, 3 [pid 4261] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4262 attached [pid 4263] <... ioctl resumed>) = 0 [pid 4261] ioctl(4, LOOP_SET_FD, 3 [pid 4263] mkdir("./file0", 0777 [pid 4261] <... ioctl resumed>) = 0 [pid 4263] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4261] mkdir("./file0", 0777 [pid 4263] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4261] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4262] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4263] pipe2( [pid 4261] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4263] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4261] pipe2( [pid 4263] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4262] <... prctl resumed>) = 0 [pid 4261] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4263] <... write resumed>) = 21 [pid 4261] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4263] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4261] <... write resumed>) = 21 [pid 4262] setpgid(0, 0 [pid 4261] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4262] <... setpgid resumed>) = 0 [pid 4262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4262] write(3, "1000", 4) = 4 [pid 4262] close(3) = 0 [pid 4262] memfd_create("syzkaller", 0) = 3 [pid 4262] ftruncate(3, 0) = 0 [pid 4262] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4262] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4262] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4262] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4262] pipe2([5, 6], 0) = 0 [pid 4262] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4262] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4259] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4259] exit_group(0 [pid 3615] close(3 [pid 4259] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4259] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4259, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4264 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4264 attached [pid 4264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4264] setpgid(0, 0) = 0 [pid 4264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4264] write(3, "1000", 4) = 4 [pid 4264] close(3) = 0 [pid 4264] memfd_create("syzkaller", 0) = 3 [pid 4264] ftruncate(3, 0) = 0 [pid 4264] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4264] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4264] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4264] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4264] pipe2([5, 6], 0) = 0 [pid 4264] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4264] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4262] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4262] exit_group(0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4262] <... exit_group resumed>) = ? [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4265 [pid 4262] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4262, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4265 attached [pid 4265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4265] setpgid(0, 0) = 0 [pid 4265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4265] write(3, "1000", 4) = 4 [pid 4265] close(3) = 0 [pid 4265] memfd_create("syzkaller", 0) = 3 [pid 4265] ftruncate(3, 0) = 0 [pid 4265] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4265] ioctl(4, LOOP_SET_FD, 3 [pid 4263] <... mount resumed>) = -1 EIO (Input/output error) [pid 4263] exit_group(0) = ? [pid 4263] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4263, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 4265] <... ioctl resumed>) = 0 [pid 4265] mkdir("./file0", 0777 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... ioctl resumed>) = 0 [pid 4265] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4266 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4267 [pid 4265] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4265] pipe2([5, 6], 0) = 0 [pid 4265] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 ./strace-static-x86_64: Process 4266 attached [pid 4266] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4267 attached ) = 0 [pid 4265] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4266] setpgid(0, 0 [pid 4267] <... prctl resumed>) = 0 [pid 4266] <... setpgid resumed>) = 0 [pid 4267] setpgid(0, 0 [pid 4266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4267] <... setpgid resumed>) = 0 [pid 4266] <... openat resumed>) = 3 [pid 4260] <... mount resumed>) = -1 EIO (Input/output error) [pid 4267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4266] write(3, "1000", 4 [pid 4267] <... openat resumed>) = 3 [pid 4266] <... write resumed>) = 4 [pid 4260] exit_group(0 [pid 4267] write(3, "1000", 4 [pid 4266] close(3 [pid 4260] <... exit_group resumed>) = ? [pid 4267] <... write resumed>) = 4 [pid 4266] <... close resumed>) = 0 [pid 4267] close(3 [pid 4266] memfd_create("syzkaller", 0 [pid 4267] <... close resumed>) = 0 [pid 4266] <... memfd_create resumed>) = 3 [pid 4267] memfd_create("syzkaller", 0 [pid 4266] ftruncate(3, 0 [pid 4260] +++ exited with 0 +++ [pid 4267] <... memfd_create resumed>) = 3 [pid 4266] <... ftruncate resumed>) = 0 [pid 4261] <... mount resumed>) = -1 EIO (Input/output error) [pid 4267] ftruncate(3, 0 [pid 4266] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4261] exit_group(0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4260, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4267] <... ftruncate resumed>) = 0 [pid 4266] <... openat resumed>) = 4 [pid 4261] <... exit_group resumed>) = ? [pid 4267] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4266] ioctl(4, LOOP_SET_FD, 3 [pid 4261] +++ exited with 0 +++ [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4267] <... openat resumed>) = 4 [pid 4266] <... ioctl resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4267] ioctl(4, LOOP_SET_FD, 3 [pid 4266] mkdir("./file0", 0777 [pid 4267] <... ioctl resumed>) = 0 [pid 4266] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4267] mkdir("./file0", 0777 [pid 4266] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4267] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4266] pipe2( [pid 4267] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4266] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4267] pipe2( [pid 4266] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4267] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4266] <... write resumed>) = 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4261, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4267] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4266] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4267] <... write resumed>) = 21 [pid 4267] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4264] <... mount resumed>) = -1 EIO (Input/output error) [pid 4264] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4264] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4264] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4264, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4268 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4268 attached [pid 4268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4268] setpgid(0, 0) = 0 [pid 4268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... ioctl resumed>) = 0 [pid 4268] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4268] write(3, "1000", 4 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4269 [pid 3616] close(3 [pid 4268] <... write resumed>) = 4 [pid 4268] close(3 [pid 3616] <... close resumed>) = 0 [pid 4268] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4270 attached ./strace-static-x86_64: Process 4269 attached [pid 4268] memfd_create("syzkaller", 0 [pid 4269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4268] <... memfd_create resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4270 [pid 4270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4269] <... prctl resumed>) = 0 [pid 4268] ftruncate(3, 0 [pid 4266] <... mount resumed>) = -1 EIO (Input/output error) [pid 4266] exit_group(0) = ? [pid 4266] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4266, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4270] <... prctl resumed>) = 0 [pid 4269] setpgid(0, 0 [pid 4268] <... ftruncate resumed>) = 0 [ 76.245333][ T14] cfg80211: failed to load regulatory.db [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4270] setpgid(0, 0 [pid 4269] <... setpgid resumed>) = 0 [pid 4268] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... ioctl resumed>) = 0 [pid 4270] <... setpgid resumed>) = 0 [pid 4269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4268] <... openat resumed>) = 4 [pid 3619] close(3 [pid 4270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4269] <... openat resumed>) = 3 [pid 4268] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... close resumed>) = 0 [pid 4270] <... openat resumed>) = 3 [pid 4269] write(3, "1000", 4 [pid 4268] <... ioctl resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4270] write(3, "1000", 4 [pid 4269] <... write resumed>) = 4 [pid 4268] mkdir("./file0", 0777 [pid 4270] <... write resumed>) = 4 [pid 4269] close(3 [pid 4268] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4271 [pid 4270] close(3 [pid 4269] <... close resumed>) = 0 [pid 4268] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4271 attached [pid 4271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4271] setpgid(0, 0 [pid 4270] <... close resumed>) = 0 [pid 4271] <... setpgid resumed>) = 0 [pid 4269] memfd_create("syzkaller", 0 [pid 4268] pipe2( [pid 4271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4270] memfd_create("syzkaller", 0 [pid 4269] <... memfd_create resumed>) = 3 [pid 4268] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4271] <... openat resumed>) = 3 [pid 4270] <... memfd_create resumed>) = 3 [pid 4269] ftruncate(3, 0 [pid 4268] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4271] write(3, "1000", 4 [pid 4270] ftruncate(3, 0 [pid 4269] <... ftruncate resumed>) = 0 [pid 4268] <... write resumed>) = 21 [pid 4271] <... write resumed>) = 4 [pid 4270] <... ftruncate resumed>) = 0 [pid 4269] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4268] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4271] close(3 [pid 4270] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4269] <... openat resumed>) = 4 [pid 4271] <... close resumed>) = 0 [pid 4271] memfd_create("syzkaller", 0) = 3 [pid 4271] ftruncate(3, 0) = 0 [pid 4271] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4270] <... openat resumed>) = 4 [pid 4269] ioctl(4, LOOP_SET_FD, 3 [pid 4271] ioctl(4, LOOP_SET_FD, 3 [pid 4270] ioctl(4, LOOP_SET_FD, 3 [pid 4269] <... ioctl resumed>) = 0 [pid 4271] <... ioctl resumed>) = 0 [pid 4271] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4271] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4271] pipe2([5, 6], 0) = 0 [pid 4271] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4271] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4270] <... ioctl resumed>) = 0 [pid 4269] mkdir("./file0", 0777 [pid 4270] mkdir("./file0", 0777 [pid 4269] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4267] <... mount resumed>) = -1 EIO (Input/output error) [pid 4270] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4269] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4267] exit_group(0 [pid 4270] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4269] pipe2( [pid 4267] <... exit_group resumed>) = ? [pid 4270] pipe2( [pid 4269] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4267] +++ exited with 0 +++ [pid 4270] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4269] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4270] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4269] <... write resumed>) = 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4267, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4270] <... write resumed>) = 21 [pid 4269] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4270] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3) = 0 [pid 4265] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4265] exit_group(0) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4272 [pid 4265] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4265, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- ./strace-static-x86_64: Process 4272 attached [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4272] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4272] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... openat resumed>) = 3 [pid 4272] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4272] write(3, "1000", 4) = 4 [pid 4272] close(3) = 0 [pid 4272] memfd_create("syzkaller", 0) = 3 [pid 4272] ftruncate(3, 0) = 0 [pid 4272] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4272] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4272] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4272] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4272] pipe2( [pid 4271] <... mount resumed>) = -1 EIO (Input/output error) [pid 4272] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4271] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4272] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4271] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 4272] <... write resumed>) = 21 [pid 4271] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 4272] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4271, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4273 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4273 attached [pid 4273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4273] setpgid(0, 0) = 0 [pid 4268] <... mount resumed>) = -1 EIO (Input/output error) [pid 4273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4268] exit_group(0 [pid 4273] <... openat resumed>) = 3 [pid 4268] <... exit_group resumed>) = ? [pid 4273] write(3, "1000", 4 [pid 4268] +++ exited with 0 +++ [pid 4273] <... write resumed>) = 4 [pid 4273] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4268, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4273] <... close resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4273] memfd_create("syzkaller", 0 [pid 3620] <... openat resumed>) = 3 [pid 4273] <... memfd_create resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4273] ftruncate(3, 0) = 0 [pid 4273] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4273] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3 [pid 4273] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4273] mkdir("./file0", 0777 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4273] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4273] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4274 ./strace-static-x86_64: Process 4274 attached [pid 4273] pipe2( [pid 4274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4273] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4274] <... prctl resumed>) = 0 [pid 4273] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... ioctl resumed>) = 0 [pid 4274] setpgid(0, 0 [pid 4273] <... write resumed>) = 21 [pid 4269] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4274] <... setpgid resumed>) = 0 [pid 4273] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4269] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 4274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4269] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4274] <... openat resumed>) = 3 [pid 4274] write(3, "1000", 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4275 [pid 4274] <... write resumed>) = 4 [pid 4269] +++ exited with 0 +++ [pid 4274] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4269, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4275 attached [pid 4274] <... close resumed>) = 0 [pid 4275] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4274] memfd_create("syzkaller", 0 [pid 4275] <... prctl resumed>) = 0 [pid 4274] <... memfd_create resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4275] setpgid(0, 0 [pid 4274] ftruncate(3, 0 [pid 3615] <... openat resumed>) = 3 [pid 4275] <... setpgid resumed>) = 0 [pid 4274] <... ftruncate resumed>) = 0 [pid 4270] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4275] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4274] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4270] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 4275] <... openat resumed>) = 3 [pid 4274] <... openat resumed>) = 4 [pid 4270] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 4275] write(3, "1000", 4 [pid 4274] ioctl(4, LOOP_SET_FD, 3 [pid 4270] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 4275] <... write resumed>) = 4 [pid 4274] <... ioctl resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4275] close(3 [pid 4274] mkdir("./file0", 0777 [pid 4275] <... close resumed>) = 0 [pid 4274] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4270, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4276 [pid 4275] memfd_create("syzkaller", 0 [pid 4274] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4275] <... memfd_create resumed>) = 3 [pid 4274] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4275] ftruncate(3, 0 [pid 4274] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4275] <... ftruncate resumed>) = 0 [pid 4275] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4274] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4275] ioctl(4, LOOP_SET_FD, 3 [pid 4274] <... write resumed>) = 21 ./strace-static-x86_64: Process 4276 attached [pid 4275] <... ioctl resumed>) = 0 [pid 4274] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4276] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4275] mkdir("./file0", 0777 [pid 4276] <... prctl resumed>) = 0 [pid 4275] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4276] setpgid(0, 0 [pid 4275] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4276] <... setpgid resumed>) = 0 [pid 4275] pipe2([5, 6], 0) = 0 [pid 4276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4275] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4276] <... openat resumed>) = 3 [pid 4275] <... write resumed>) = 21 [pid 4276] write(3, "1000", 4 [pid 4275] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4276] <... write resumed>) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 4276] close(3 [pid 3616] close(3 [pid 4276] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4276] memfd_create("syzkaller", 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4276] <... memfd_create resumed>) = 3 [pid 4276] ftruncate(3, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4277 [pid 4276] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4277 attached ) = 4 [pid 4277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4276] ioctl(4, LOOP_SET_FD, 3 [pid 4277] <... prctl resumed>) = 0 [pid 4276] <... ioctl resumed>) = 0 [pid 4277] setpgid(0, 0 [pid 4276] mkdir("./file0", 0777 [pid 4277] <... setpgid resumed>) = 0 [pid 4276] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4276] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4277] <... openat resumed>) = 3 [pid 4276] pipe2( [pid 4277] write(3, "1000", 4 [pid 4276] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4277] <... write resumed>) = 4 [pid 4276] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4277] close(3 [pid 4276] <... write resumed>) = 21 [pid 4277] <... close resumed>) = 0 [pid 4276] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4277] memfd_create("syzkaller", 0) = 3 [pid 4277] ftruncate(3, 0) = 0 [pid 4277] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4275] <... mount resumed>) = -1 EIO (Input/output error) [pid 4277] <... openat resumed>) = 4 [pid 4275] exit_group(0 [pid 4277] ioctl(4, LOOP_SET_FD, 3 [pid 4275] <... exit_group resumed>) = ? [pid 4277] <... ioctl resumed>) = 0 [pid 4275] +++ exited with 0 +++ [pid 4277] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4275, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4277] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4277] pipe2( [pid 3620] <... restart_syscall resumed>) = 0 [pid 4277] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4277] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4277] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4272] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4272] exit_group(0 [pid 3620] close(3 [pid 4272] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4272] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4272, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4278 [pid 3618] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 4278 attached [pid 4278] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4278] setpgid(0, 0 [pid 3618] <... openat resumed>) = 3 [pid 4278] <... setpgid resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4278] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... ioctl resumed>) = 0 [pid 4278] <... openat resumed>) = 3 [pid 3618] close(3 [pid 4278] write(3, "1000", 4 [pid 3618] <... close resumed>) = 0 [pid 4278] <... write resumed>) = 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4278] close(3) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4279 [pid 4278] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 4279 attached [pid 4278] ftruncate(3, 0 [pid 4279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4278] <... ftruncate resumed>) = 0 [pid 4279] <... prctl resumed>) = 0 [pid 4278] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4279] setpgid(0, 0 [pid 4278] <... openat resumed>) = 4 [pid 4279] <... setpgid resumed>) = 0 [pid 4278] ioctl(4, LOOP_SET_FD, 3 [pid 4279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4278] <... ioctl resumed>) = 0 [pid 4279] <... openat resumed>) = 3 [pid 4278] mkdir("./file0", 0777 [pid 4273] <... mount resumed>) = -1 EIO (Input/output error) [pid 4278] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4273] exit_group(0 [pid 4279] write(3, "1000", 4) = 4 [pid 4278] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4273] <... exit_group resumed>) = ? [pid 4279] close(3 [pid 4278] pipe2( [pid 4279] <... close resumed>) = 0 [pid 4278] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4273] +++ exited with 0 +++ [pid 4279] memfd_create("syzkaller", 0 [pid 4278] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4279] <... memfd_create resumed>) = 3 [pid 4278] <... write resumed>) = 21 [pid 4279] ftruncate(3, 0 [pid 4278] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4273, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4279] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4279] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4279] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4279] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4274] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4279] mkdir("./file0", 0777 [pid 4274] exit_group(0 [pid 3617] close(3 [pid 4279] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4274] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4279] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4274] +++ exited with 0 +++ [pid 4279] pipe2( [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4279] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4274, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4279] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4279] <... write resumed>) = 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4280 [pid 4279] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4281 ./strace-static-x86_64: Process 4280 attached [pid 4280] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4281 attached ) = 0 [pid 4281] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4280] setpgid(0, 0 [pid 4281] <... prctl resumed>) = 0 [pid 4280] <... setpgid resumed>) = 0 [pid 4281] setpgid(0, 0 [pid 4280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4281] <... setpgid resumed>) = 0 [pid 4280] <... openat resumed>) = 3 [pid 4281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4280] write(3, "1000", 4 [pid 4281] <... openat resumed>) = 3 [pid 4280] <... write resumed>) = 4 [pid 4281] write(3, "1000", 4 [pid 4280] close(3 [pid 4281] <... write resumed>) = 4 [pid 4280] <... close resumed>) = 0 [pid 4277] <... mount resumed>) = -1 EIO (Input/output error) [pid 4281] close(3) = 0 [pid 4281] memfd_create("syzkaller", 0) = 3 [pid 4281] ftruncate(3, 0 [pid 4280] memfd_create("syzkaller", 0 [pid 4277] exit_group(0 [pid 4281] <... ftruncate resumed>) = 0 [pid 4280] <... memfd_create resumed>) = 3 [pid 4277] <... exit_group resumed>) = ? [pid 4281] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4280] ftruncate(3, 0 [pid 4281] <... openat resumed>) = 4 [pid 4280] <... ftruncate resumed>) = 0 [pid 4277] +++ exited with 0 +++ [pid 4281] ioctl(4, LOOP_SET_FD, 3 [pid 4280] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4281] <... ioctl resumed>) = 0 [pid 4280] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4277, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4281] mkdir("./file0", 0777 [pid 4280] ioctl(4, LOOP_SET_FD, 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4281] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4280] <... ioctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4281] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4280] mkdir("./file0", 0777 [pid 4281] pipe2( [pid 4280] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4281] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4280] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4281] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4280] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4281] <... write resumed>) = 21 [pid 4280] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4281] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4280] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4280] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4276] <... mount resumed>) = -1 EIO (Input/output error) [pid 4276] exit_group(0) = ? [pid 4276] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4276, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4282 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4282 attached [pid 4282] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4282] setpgid(0, 0) = 0 [pid 4282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4282] write(3, "1000", 4) = 4 [pid 4282] close(3) = 0 [pid 4282] memfd_create("syzkaller", 0) = 3 [pid 4282] ftruncate(3, 0) = 0 [pid 4282] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4282] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4282] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4282] pipe2([5, 6], 0) = 0 [pid 4282] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4282] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4281] <... mount resumed>) = -1 EIO (Input/output error) [pid 4281] exit_group(0) = ? [pid 4281] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4281, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3619] close(3 [pid 3615] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4283 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4284 ./strace-static-x86_64: Process 4284 attached [pid 4284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4284] setpgid(0, 0./strace-static-x86_64: Process 4283 attached ) = 0 [pid 4284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4284] <... openat resumed>) = 3 [pid 4283] <... prctl resumed>) = 0 [pid 4284] write(3, "1000", 4 [pid 4283] setpgid(0, 0 [pid 4284] <... write resumed>) = 4 [pid 4283] <... setpgid resumed>) = 0 [pid 4284] close(3 [pid 4283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4284] <... close resumed>) = 0 [pid 4283] <... openat resumed>) = 3 [pid 4284] memfd_create("syzkaller", 0 [pid 4283] write(3, "1000", 4 [pid 4284] <... memfd_create resumed>) = 3 [pid 4283] <... write resumed>) = 4 [pid 4284] ftruncate(3, 0 [pid 4283] close(3 [pid 4284] <... ftruncate resumed>) = 0 [pid 4283] <... close resumed>) = 0 [pid 4284] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4283] memfd_create("syzkaller", 0 [pid 4284] <... openat resumed>) = 4 [pid 4283] <... memfd_create resumed>) = 3 [pid 4284] ioctl(4, LOOP_SET_FD, 3 [pid 4283] ftruncate(3, 0 [pid 4284] <... ioctl resumed>) = 0 [pid 4283] <... ftruncate resumed>) = 0 [pid 4284] mkdir("./file0", 0777 [pid 4283] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4284] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4283] <... openat resumed>) = 4 [pid 4284] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4283] ioctl(4, LOOP_SET_FD, 3 [pid 4284] pipe2( [pid 4283] <... ioctl resumed>) = 0 [pid 4284] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4283] mkdir("./file0", 0777 [pid 4284] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4283] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4284] <... write resumed>) = 21 [pid 4283] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4284] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4283] pipe2([5, 6], 0) = 0 [pid 4283] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4283] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4278] <... mount resumed>) = -1 EIO (Input/output error) [pid 4278] exit_group(0) = ? [pid 4278] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4278, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4285 ./strace-static-x86_64: Process 4285 attached [pid 4285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4285] setpgid(0, 0) = 0 [pid 4285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4285] write(3, "1000", 4) = 4 [pid 4285] close(3) = 0 [pid 4285] memfd_create("syzkaller", 0) = 3 [pid 4285] ftruncate(3, 0) = 0 [pid 4285] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4285] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4285] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4285] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4285] pipe2([5, 6], 0) = 0 [pid 4285] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4285] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4279] <... mount resumed>) = -1 EIO (Input/output error) [pid 4279] exit_group(0) = ? [pid 4279] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4279, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4286 ./strace-static-x86_64: Process 4286 attached [pid 4286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4286] setpgid(0, 0) = 0 [pid 4286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4286] write(3, "1000", 4) = 4 [pid 4286] close(3) = 0 [pid 4286] memfd_create("syzkaller", 0) = 3 [pid 4283] <... mount resumed>) = -1 EIO (Input/output error) [pid 4286] ftruncate(3, 0 [pid 4283] exit_group(0 [pid 4286] <... ftruncate resumed>) = 0 [pid 4283] <... exit_group resumed>) = ? [pid 4286] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4283] +++ exited with 0 +++ [pid 4286] <... openat resumed>) = 4 [pid 4286] ioctl(4, LOOP_SET_FD, 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4283, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4286] <... ioctl resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4286] mkdir("./file0", 0777 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4286] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4286] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4286] pipe2( [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4286] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4286] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4286] <... write resumed>) = 21 [pid 4286] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4282] <... mount resumed>) = -1 EIO (Input/output error) [pid 4282] exit_group(0) = ? [pid 4282] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4282, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4287 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4288 ./strace-static-x86_64: Process 4287 attached ./strace-static-x86_64: Process 4288 attached [pid 4288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4288] <... prctl resumed>) = 0 [pid 4287] <... prctl resumed>) = 0 [pid 4288] setpgid(0, 0 [pid 4287] setpgid(0, 0 [pid 4288] <... setpgid resumed>) = 0 [pid 4287] <... setpgid resumed>) = 0 [pid 4288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4288] <... openat resumed>) = 3 [pid 4287] <... openat resumed>) = 3 [pid 4288] write(3, "1000", 4 [pid 4287] write(3, "1000", 4 [pid 4288] <... write resumed>) = 4 [pid 4287] <... write resumed>) = 4 [pid 4288] close(3 [pid 4287] close(3 [pid 4288] <... close resumed>) = 0 [pid 4287] <... close resumed>) = 0 [pid 4288] memfd_create("syzkaller", 0 [pid 4287] memfd_create("syzkaller", 0 [pid 4288] <... memfd_create resumed>) = 3 [pid 4287] <... memfd_create resumed>) = 3 [pid 4288] ftruncate(3, 0 [pid 4287] ftruncate(3, 0 [pid 4288] <... ftruncate resumed>) = 0 [pid 4287] <... ftruncate resumed>) = 0 [pid 4288] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4287] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4288] <... openat resumed>) = 4 [pid 4287] <... openat resumed>) = 4 [pid 4288] ioctl(4, LOOP_SET_FD, 3 [pid 4287] ioctl(4, LOOP_SET_FD, 3 [pid 4288] <... ioctl resumed>) = 0 [pid 4287] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 4284] <... mount resumed>) = -1 EIO (Input/output error) [pid 4288] mkdir("./file0", 0777 [pid 4287] ioctl(4, LOOP_CLR_FD [pid 4284] exit_group(0 [pid 4288] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4284] <... exit_group resumed>) = ? [pid 4288] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4284] +++ exited with 0 +++ [pid 4288] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4284, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4288] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4288] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4288] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4287] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 4287] ioctl(4, LOOP_SET_FD, 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4287] <... ioctl resumed>) = 0 [pid 4287] mkdir("./file0", 0777 [pid 4280] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4289 [pid 4287] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4280] exit_group(0 [pid 4287] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4280] <... exit_group resumed>) = ? [pid 4287] pipe2([5, 6], 0) = 0 [pid 4280] +++ exited with 0 +++ [pid 4287] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4280, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4289 attached [pid 4287] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... openat resumed>) = 3 [pid 4289] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4289] setpgid(0, 0) = 0 [pid 4289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4289] write(3, "1000", 4) = 4 [pid 4289] close(3) = 0 [pid 4289] memfd_create("syzkaller", 0) = 3 [pid 4289] ftruncate(3, 0) = 0 [pid 4289] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4289] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4289] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4289] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4289] pipe2([5, 6], 0) = 0 [pid 4289] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4290 [pid 4289] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4285] <... mount resumed>) = -1 EIO (Input/output error) [pid 4285] exit_group(0./strace-static-x86_64: Process 4290 attached ) = ? [pid 4290] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4285] +++ exited with 0 +++ [pid 4290] <... prctl resumed>) = 0 [pid 4290] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4285, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4290] <... setpgid resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... restart_syscall resumed>) = 0 [pid 4290] <... openat resumed>) = 3 [pid 4290] write(3, "1000", 4) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4290] close(3 [pid 3620] <... openat resumed>) = 3 [pid 4290] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4290] memfd_create("syzkaller", 0) = 3 [pid 4290] ftruncate(3, 0) = 0 [pid 4290] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4290] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4290] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4290] pipe2([5, 6], 0) = 0 [pid 4290] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4290] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4287] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4287] exit_group(0 [pid 3620] close(3 [pid 4287] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4287] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4287, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4291 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 4291 attached ) = 3 [pid 4291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4291] <... prctl resumed>) = 0 [pid 4291] setpgid(0, 0) = 0 [pid 4291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4291] write(3, "1000", 4) = 4 [pid 4291] close(3) = 0 [pid 4291] memfd_create("syzkaller", 0) = 3 [pid 4291] ftruncate(3, 0) = 0 [pid 4291] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4291] ioctl(4, LOOP_SET_FD, 3 [pid 4288] <... mount resumed>) = -1 EIO (Input/output error) [pid 4291] <... ioctl resumed>) = 0 [pid 4288] exit_group(0 [pid 4291] mkdir("./file0", 0777 [pid 4288] <... exit_group resumed>) = ? [pid 4291] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4288] +++ exited with 0 +++ [pid 4291] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4291] pipe2( [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4288, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4291] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4291] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4291] <... write resumed>) = 21 [pid 4291] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4292 ./strace-static-x86_64: Process 4292 attached [pid 4292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4292] setpgid(0, 0) = 0 [pid 4292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4292] write(3, "1000", 4) = 4 [pid 4292] close(3) = 0 [pid 4292] memfd_create("syzkaller", 0) = 3 [pid 4292] ftruncate(3, 0) = 0 [pid 4292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4292] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4292] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4292] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4292] pipe2([5, 6], 0) = 0 [pid 4292] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4292] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4286] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4286] exit_group(0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4286] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4293 [pid 4286] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4286, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4293 attached [pid 4293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4293] setpgid(0, 0) = 0 [pid 4293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4293] <... openat resumed>) = 3 [pid 4292] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... openat resumed>) = 3 [pid 4293] write(3, "1000", 4 [pid 4292] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4293] <... write resumed>) = 4 [pid 4292] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4293] close(3 [pid 4292] +++ exited with 0 +++ [pid 3618] close(3 [pid 4293] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4293] memfd_create("syzkaller", 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4292, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4293] <... memfd_create resumed>) = 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4293] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4294 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4293] <... ftruncate resumed>) = 0 [pid 4293] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4294 attached ) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4293] ioctl(4, LOOP_SET_FD, 3 [pid 4291] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4294] <... prctl resumed>) = 0 [pid 4293] <... ioctl resumed>) = 0 [pid 4291] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4294] setpgid(0, 0 [pid 4293] mkdir("./file0", 0777 [pid 4294] <... setpgid resumed>) = 0 [pid 4293] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4291] <... exit_group resumed>) = ? [pid 4294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4293] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4294] <... openat resumed>) = 3 [pid 4293] pipe2( [pid 4294] write(3, "1000", 4 [pid 4293] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4294] <... write resumed>) = 4 [pid 4293] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4291] +++ exited with 0 +++ [pid 4294] close(3 [pid 4293] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4291, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4294] <... close resumed>) = 0 [pid 4293] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4294] memfd_create("syzkaller", 0) = 3 [pid 4294] ftruncate(3, 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4294] <... ftruncate resumed>) = 0 [pid 3616] close(3 [pid 4294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... close resumed>) = 0 [pid 4294] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4294] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4294] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4295 [pid 4294] mkdir("./file0", 0777 [pid 3620] close(3./strace-static-x86_64: Process 4295 attached [pid 4294] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4289] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 4294] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4289] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4294] pipe2( [pid 4289] <... exit_group resumed>) = ? [pid 4295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4294] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4289] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4296 [pid 4295] <... prctl resumed>) = 0 [pid 4294] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4289, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4294] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4296 attached ) = 3 [pid 4295] setpgid(0, 0 [pid 4296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4295] <... setpgid resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4296] <... prctl resumed>) = 0 [pid 4295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... ioctl resumed>) = 0 [pid 4296] setpgid(0, 0 [pid 4295] <... openat resumed>) = 3 [pid 3619] close(3 [pid 4296] <... setpgid resumed>) = 0 [pid 4295] write(3, "1000", 4 [pid 3619] <... close resumed>) = 0 [pid 4296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4295] <... write resumed>) = 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4296] <... openat resumed>) = 3 [pid 4295] close(3 [pid 4296] write(3, "1000", 4 [pid 4295] <... close resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4297 [pid 4296] <... write resumed>) = 4 [pid 4295] memfd_create("syzkaller", 0 [pid 4296] close(3 [pid 4295] <... memfd_create resumed>) = 3 [pid 4296] <... close resumed>) = 0 [pid 4295] ftruncate(3, 0./strace-static-x86_64: Process 4297 attached [pid 4296] memfd_create("syzkaller", 0 [pid 4295] <... ftruncate resumed>) = 0 [pid 4297] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4296] <... memfd_create resumed>) = 3 [pid 4295] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4290] <... mount resumed>) = -1 EIO (Input/output error) [pid 4297] <... prctl resumed>) = 0 [pid 4296] ftruncate(3, 0 [pid 4295] <... openat resumed>) = 4 [pid 4290] exit_group(0 [pid 4297] setpgid(0, 0 [pid 4296] <... ftruncate resumed>) = 0 [pid 4295] ioctl(4, LOOP_SET_FD, 3 [pid 4290] <... exit_group resumed>) = ? [pid 4297] <... setpgid resumed>) = 0 [pid 4296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4295] <... ioctl resumed>) = 0 [pid 4297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4296] <... openat resumed>) = 4 [pid 4295] mkdir("./file0", 0777 [pid 4290] +++ exited with 0 +++ [pid 4297] <... openat resumed>) = 3 [pid 4296] ioctl(4, LOOP_SET_FD, 3 [pid 4295] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4290, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4297] write(3, "1000", 4 [pid 4296] <... ioctl resumed>) = 0 [pid 4295] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4297] <... write resumed>) = 4 [pid 4296] mkdir("./file0", 0777 [pid 4295] pipe2( [pid 3617] <... restart_syscall resumed>) = 0 [pid 4297] close(3 [pid 4296] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4297] <... close resumed>) = 0 [pid 4296] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4297] memfd_create("syzkaller", 0 [pid 4296] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4297] <... memfd_create resumed>) = 3 [pid 4296] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4295] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4297] ftruncate(3, 0 [pid 4296] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4295] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4297] <... ftruncate resumed>) = 0 [pid 4296] <... write resumed>) = 21 [pid 4295] <... write resumed>) = 21 [pid 4297] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4296] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4295] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4297] <... openat resumed>) = 4 [pid 4294] <... mount resumed>) = -1 EIO (Input/output error) [pid 4297] ioctl(4, LOOP_SET_FD, 3 [pid 4294] exit_group(0 [pid 4297] <... ioctl resumed>) = 0 [pid 4294] <... exit_group resumed>) = ? [pid 4297] mkdir("./file0", 0777 [pid 4294] +++ exited with 0 +++ [pid 4297] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4294, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4297] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4297] pipe2([5, 6], 0) = 0 [pid 4297] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] <... ioctl resumed>) = 0 [pid 4297] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] close(3 [pid 3618] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4298 ./strace-static-x86_64: Process 4298 attached [pid 4298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4298] setpgid(0, 0) = 0 [pid 4298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4298] write(3, "1000", 4) = 4 [pid 4298] close(3) = 0 [pid 4298] memfd_create("syzkaller", 0) = 3 [pid 4298] ftruncate(3, 0 [pid 4293] <... mount resumed>) = -1 EIO (Input/output error) [pid 4298] <... ftruncate resumed>) = 0 [pid 4293] exit_group(0 [pid 4298] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4293] <... exit_group resumed>) = ? [pid 4298] <... openat resumed>) = 4 [pid 4293] +++ exited with 0 +++ [pid 3618] <... ioctl resumed>) = 0 [pid 4298] ioctl(4, LOOP_SET_FD, 3 [pid 3618] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4293, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4298] <... ioctl resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4298] mkdir("./file0", 0777 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4298] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4298] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4299 [pid 4298] pipe2([5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4298] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 4298] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4298] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4300 ./strace-static-x86_64: Process 4300 attached [pid 4300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4300] setpgid(0, 0) = 0 [pid 4300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4300] write(3, "1000", 4) = 4 [pid 4300] close(3./strace-static-x86_64: Process 4299 attached ) = 0 [pid 4295] <... mount resumed>) = -1 EIO (Input/output error) [pid 4300] memfd_create("syzkaller", 0 [pid 4299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4295] exit_group(0 [pid 4300] <... memfd_create resumed>) = 3 [pid 4299] <... prctl resumed>) = 0 [pid 4295] <... exit_group resumed>) = ? [pid 4300] ftruncate(3, 0) = 0 [pid 4300] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4300] ioctl(4, LOOP_SET_FD, 3 [pid 4299] setpgid(0, 0 [pid 4295] +++ exited with 0 +++ [pid 4300] <... ioctl resumed>) = 0 [pid 4299] <... setpgid resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4295, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4300] mkdir("./file0", 0777 [pid 4299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4300] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4299] <... openat resumed>) = 3 [pid 4300] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4299] write(3, "1000", 4 [pid 4300] pipe2( [pid 4299] <... write resumed>) = 4 [pid 4300] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4299] close(3 [pid 4300] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4299] <... close resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4300] <... write resumed>) = 21 [pid 4299] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 4300] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4299] <... memfd_create resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4299] ftruncate(3, 0) = 0 [pid 4299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4299] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4299] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4299] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4299] pipe2([5, 6], 0) = 0 [pid 4299] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4296] <... mount resumed>) = -1 EIO (Input/output error) [pid 4296] exit_group(0 [pid 4299] <... write resumed>) = 21 [pid 4296] <... exit_group resumed>) = ? [pid 3616] <... ioctl resumed>) = 0 [pid 4299] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] close(3 [pid 4296] +++ exited with 0 +++ [pid 3616] <... close resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4296, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4301 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4301 attached [pid 4301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4297] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4301] <... prctl resumed>) = 0 [pid 4297] exit_group(0 [pid 3620] close(3 [pid 4297] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4301] setpgid(0, 0 [pid 4297] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4301] <... setpgid resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4302 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4297, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 4301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] close(3./strace-static-x86_64: Process 4302 attached [pid 4301] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 4302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4301] write(3, "1000", 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4302] <... prctl resumed>) = 0 [pid 4301] <... write resumed>) = 4 [pid 4302] setpgid(0, 0 [pid 4301] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4303 [pid 4302] <... setpgid resumed>) = 0 [pid 4301] <... close resumed>) = 0 [pid 4302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4301] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4303 attached [pid 4302] <... openat resumed>) = 3 [pid 4301] <... memfd_create resumed>) = 3 [pid 4303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4302] write(3, "1000", 4 [pid 4301] ftruncate(3, 0 [pid 4303] <... prctl resumed>) = 0 [pid 4302] <... write resumed>) = 4 [pid 4301] <... ftruncate resumed>) = 0 [pid 4303] setpgid(0, 0 [pid 4302] close(3 [pid 4301] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4303] <... setpgid resumed>) = 0 [pid 4302] <... close resumed>) = 0 [pid 4301] <... openat resumed>) = 4 [pid 4303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4302] memfd_create("syzkaller", 0 [pid 4301] ioctl(4, LOOP_SET_FD, 3 [pid 4303] <... openat resumed>) = 3 [pid 4302] <... memfd_create resumed>) = 3 [pid 4298] <... mount resumed>) = -1 EIO (Input/output error) [pid 4303] write(3, "1000", 4 [pid 4302] ftruncate(3, 0 [pid 4298] exit_group(0 [pid 4303] <... write resumed>) = 4 [pid 4302] <... ftruncate resumed>) = 0 [pid 4298] <... exit_group resumed>) = ? [pid 4303] close(3 [pid 4302] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4298] +++ exited with 0 +++ [pid 4303] <... close resumed>) = 0 [pid 4302] <... openat resumed>) = 4 [pid 4303] memfd_create("syzkaller", 0 [pid 4302] ioctl(4, LOOP_SET_FD, 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4298, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4303] <... memfd_create resumed>) = 3 [pid 4302] <... ioctl resumed>) = 0 [pid 4301] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4303] ftruncate(3, 0 [pid 4302] mkdir("./file0", 0777 [pid 4301] mkdir("./file0", 0777 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4303] <... ftruncate resumed>) = 0 [pid 4302] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4303] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4302] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4303] <... openat resumed>) = 4 [pid 4302] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4303] ioctl(4, LOOP_SET_FD, 3 [pid 4302] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4301] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 [pid 4303] <... ioctl resumed>) = 0 [pid 4302] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4301] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4303] mkdir("./file0", 0777 [pid 4302] <... write resumed>) = 21 [pid 4301] pipe2( [pid 4303] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4302] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4301] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4303] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4301] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4303] pipe2( [pid 4301] <... write resumed>) = 21 [pid 4303] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4301] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4303] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4303] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4300] <... mount resumed>) = -1 EIO (Input/output error) [pid 4300] exit_group(0) = ? [pid 4300] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4300, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4304 ./strace-static-x86_64: Process 4304 attached [pid 4304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4304] setpgid(0, 0) = 0 [pid 4304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... ioctl resumed>) = 0 [pid 4304] <... openat resumed>) = 3 [pid 3617] close(3 [pid 4304] write(3, "1000", 4 [pid 3617] <... close resumed>) = 0 [pid 4304] <... write resumed>) = 4 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4304] close(3) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4305 [pid 4304] memfd_create("syzkaller", 0 [pid 4299] <... mount resumed>) = -1 EIO (Input/output error) [pid 4304] <... memfd_create resumed>) = 3 [pid 4299] exit_group(0 [pid 4304] ftruncate(3, 0 [pid 4299] <... exit_group resumed>) = ? [pid 4304] <... ftruncate resumed>) = 0 [pid 4304] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4299] +++ exited with 0 +++ ./strace-static-x86_64: Process 4305 attached [pid 4304] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4299, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4304] ioctl(4, LOOP_SET_FD, 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4305] <... prctl resumed>) = 0 [pid 4304] <... ioctl resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4305] setpgid(0, 0 [pid 4304] mkdir("./file0", 0777 [pid 4305] <... setpgid resumed>) = 0 [pid 4304] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4303] <... mount resumed>) = -1 EIO (Input/output error) [pid 4305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4304] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4303] exit_group(0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4305] <... openat resumed>) = 3 [pid 4304] pipe2( [pid 4303] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 4305] write(3, "1000", 4 [pid 4304] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4303] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4305] <... write resumed>) = 4 [pid 4304] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4305] close(3 [pid 4304] <... write resumed>) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4303, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4305] <... close resumed>) = 0 [pid 4304] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4305] memfd_create("syzkaller", 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4305] <... memfd_create resumed>) = 3 [pid 4305] ftruncate(3, 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4305] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 4305] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4305] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4305] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4305] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4305] pipe2([5, 6], 0) = 0 [pid 4305] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4302] <... mount resumed>) = -1 EIO (Input/output error) [pid 4305] <... write resumed>) = 21 [pid 4302] exit_group(0 [pid 4305] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4302] <... exit_group resumed>) = ? [pid 4302] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4302, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4306 ./strace-static-x86_64: Process 4306 attached [pid 4306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4306] setpgid(0, 0) = 0 [pid 4306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4306] write(3, "1000", 4) = 4 [pid 4306] close(3 [pid 3619] <... ioctl resumed>) = 0 [pid 4306] <... close resumed>) = 0 [pid 3619] close(3 [pid 4306] memfd_create("syzkaller", 0 [pid 3619] <... close resumed>) = 0 [pid 4306] <... memfd_create resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4306] ftruncate(3, 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4307 [pid 4306] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4306] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4307 attached ) = 0 [pid 4301] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4307] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4306] mkdir("./file0", 0777 [pid 4301] exit_group(0 [pid 3620] close(3 [pid 4307] <... prctl resumed>) = 0 [pid 4306] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4301] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4307] setpgid(0, 0 [pid 4306] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4306] pipe2( [pid 4301] +++ exited with 0 +++ [pid 4307] <... setpgid resumed>) = 0 [pid 4306] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4306] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4301, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4306] <... write resumed>) = 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4308 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4306] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4307] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4307] write(3, "1000", 4) = 4 [pid 4307] close(3) = 0 [pid 4307] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4308 attached ) = 3 [pid 4305] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4308] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4307] ftruncate(3, 0 [pid 4305] exit_group(0 [pid 3616] close(3 [pid 4308] <... prctl resumed>) = 0 [pid 4307] <... ftruncate resumed>) = 0 [pid 4305] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4308] setpgid(0, 0 [pid 4307] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4305] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4308] <... setpgid resumed>) = 0 [pid 4307] <... openat resumed>) = 4 [pid 4308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4307] ioctl(4, LOOP_SET_FD, 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4305, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4309 [pid 4308] <... openat resumed>) = 3 [pid 4307] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4308] write(3, "1000", 4 [pid 4307] mkdir("./file0", 0777 [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4309 attached [pid 4308] <... write resumed>) = 4 [pid 4307] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4308] close(3 [pid 4307] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4309] <... prctl resumed>) = 0 [pid 4308] <... close resumed>) = 0 [pid 4307] pipe2( [pid 4304] <... mount resumed>) = -1 EIO (Input/output error) [pid 4309] setpgid(0, 0 [pid 4308] memfd_create("syzkaller", 0 [pid 4307] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4304] exit_group(0 [pid 4309] <... setpgid resumed>) = 0 [pid 4308] <... memfd_create resumed>) = 3 [pid 4307] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4304] <... exit_group resumed>) = ? [pid 4309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4308] ftruncate(3, 0 [pid 4307] <... write resumed>) = 21 [pid 4304] +++ exited with 0 +++ [pid 4309] <... openat resumed>) = 3 [pid 4308] <... ftruncate resumed>) = 0 [pid 4307] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4304, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4309] write(3, "1000", 4 [pid 4308] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... ioctl resumed>) = 0 [pid 4309] <... write resumed>) = 4 [pid 4308] <... openat resumed>) = 4 [pid 3617] close(3 [pid 4309] close(3 [pid 4308] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... close resumed>) = 0 [pid 4309] <... close resumed>) = 0 [pid 4308] <... ioctl resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4309] memfd_create("syzkaller", 0 [pid 4308] mkdir("./file0", 0777 [pid 4306] <... mount resumed>) = -1 EIO (Input/output error) [pid 4309] <... memfd_create resumed>) = 3 [pid 4308] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4306] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4310 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4309] ftruncate(3, 0 [pid 4308] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4306] <... exit_group resumed>) = ? [pid 3615] <... openat resumed>) = 3 [pid 4309] <... ftruncate resumed>) = 0 [pid 4308] pipe2( [pid 4306] +++ exited with 0 +++ [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4309] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4308] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4309] <... openat resumed>) = 4 [pid 4308] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4306, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4309] ioctl(4, LOOP_SET_FD, 3 [pid 4308] <... write resumed>) = 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4309] <... ioctl resumed>) = 0 [pid 4308] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4310 attached [pid 4309] mkdir("./file0", 0777 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4309] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... ioctl resumed>) = 0 [pid 4309] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] close(3 [pid 4310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4309] pipe2( [pid 3618] <... close resumed>) = 0 [pid 4310] <... prctl resumed>) = 0 [pid 4309] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4309] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4310] setpgid(0, 0) = 0 [pid 4309] <... write resumed>) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4311 [pid 4310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4309] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4310] <... openat resumed>) = 3 [pid 4310] write(3, "1000", 4./strace-static-x86_64: Process 4311 attached ) = 4 [pid 4311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4310] close(3 [pid 4311] <... prctl resumed>) = 0 [pid 4310] <... close resumed>) = 0 [pid 4311] setpgid(0, 0 [pid 4310] memfd_create("syzkaller", 0 [pid 4311] <... setpgid resumed>) = 0 [pid 4310] <... memfd_create resumed>) = 3 [pid 4311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... ioctl resumed>) = 0 [pid 4311] <... openat resumed>) = 3 [pid 4307] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] close(3 [pid 4311] write(3, "1000", 4 [pid 4310] ftruncate(3, 0 [pid 4307] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 4311] <... write resumed>) = 4 [pid 4310] <... ftruncate resumed>) = 0 [pid 4307] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4311] close(3 [pid 4310] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4307] +++ exited with 0 +++ [pid 4311] <... close resumed>) = 0 [pid 4310] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4307, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4312 [pid 4311] memfd_create("syzkaller", 0 [pid 4310] ioctl(4, LOOP_SET_FD, 3 [pid 4311] <... memfd_create resumed>) = 3 [pid 4310] <... ioctl resumed>) = 0 [pid 4311] ftruncate(3, 0 [pid 4310] mkdir("./file0", 0777 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4311] <... ftruncate resumed>) = 0 [pid 4310] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4312 attached [pid 4311] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4310] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4312] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4311] <... openat resumed>) = 4 [pid 4310] pipe2( [pid 4312] <... prctl resumed>) = 0 [pid 4311] ioctl(4, LOOP_SET_FD, 3 [pid 4310] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4312] setpgid(0, 0 [pid 4311] <... ioctl resumed>) = 0 [pid 4310] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4312] <... setpgid resumed>) = 0 [pid 4311] mkdir("./file0", 0777 [pid 4312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4311] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4312] <... openat resumed>) = 3 [pid 4311] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4312] write(3, "1000", 4 [pid 4311] pipe2( [pid 4312] <... write resumed>) = 4 [pid 4311] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4312] close(3 [pid 4311] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4310] <... write resumed>) = 21 [pid 4312] <... close resumed>) = 0 [pid 4311] <... write resumed>) = 21 [pid 4310] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4308] <... mount resumed>) = -1 EIO (Input/output error) [pid 4312] memfd_create("syzkaller", 0 [pid 4311] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4312] <... memfd_create resumed>) = 3 [pid 4312] ftruncate(3, 0) = 0 [pid 4308] exit_group(0 [pid 4312] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4312] ioctl(4, LOOP_SET_FD, 3 [pid 4308] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4312] <... ioctl resumed>) = 0 [pid 4308] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 4312] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4308, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4312] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4309] <... mount resumed>) = -1 EIO (Input/output error) [pid 4312] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4309] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4313 [pid 4312] pipe2( [pid 4309] <... exit_group resumed>) = ? [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4312] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4309] +++ exited with 0 +++ [pid 3620] <... openat resumed>) = 3 [pid 4312] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4309, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4312] <... write resumed>) = 21 ./strace-static-x86_64: Process 4313 attached [pid 4312] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4313] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4310] <... mount resumed>) = -1 EIO (Input/output error) [pid 4310] exit_group(0 [pid 4313] <... prctl resumed>) = 0 [pid 4310] <... exit_group resumed>) = ? [pid 4313] setpgid(0, 0 [pid 4310] +++ exited with 0 +++ [pid 4313] <... setpgid resumed>) = 0 [pid 4313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4310, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4313] <... openat resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3616] close(3 [pid 3620] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... close resumed>) = 0 [pid 4313] write(3, "1000", 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4313] <... write resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4314 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4315 [pid 4313] close(3) = 0 [pid 4313] memfd_create("syzkaller", 0) = 3 [pid 4313] ftruncate(3, 0./strace-static-x86_64: Process 4314 attached ) = 0 [pid 4314] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4313] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4314] <... prctl resumed>) = 0 [pid 4313] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4315 attached [pid 4314] setpgid(0, 0 [pid 4313] ioctl(4, LOOP_SET_FD, 3 [pid 4311] <... mount resumed>) = -1 EIO (Input/output error) [pid 4315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4314] <... setpgid resumed>) = 0 [pid 4313] <... ioctl resumed>) = 0 [pid 4311] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4315] <... prctl resumed>) = 0 [pid 4314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4313] mkdir("./file0", 0777 [pid 4311] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 4315] setpgid(0, 0 [pid 4314] <... openat resumed>) = 3 [pid 4313] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4311] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 4315] <... setpgid resumed>) = 0 [pid 4314] write(3, "1000", 4 [pid 4313] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4311, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4314] <... write resumed>) = 4 [pid 4313] pipe2( [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4315] <... openat resumed>) = 3 [pid 4314] close(3 [pid 4313] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4316 [pid 4315] write(3, "1000", 4 [pid 4314] <... close resumed>) = 0 [pid 4314] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4316 attached [pid 4315] <... write resumed>) = 4 [pid 4314] <... memfd_create resumed>) = 3 [pid 4313] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4316] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4315] close(3 [pid 4314] ftruncate(3, 0 [pid 4313] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 4316] <... prctl resumed>) = 0 [pid 4315] <... close resumed>) = 0 [pid 4314] <... ftruncate resumed>) = 0 [pid 4313] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4316] setpgid(0, 0 [pid 4315] memfd_create("syzkaller", 0 [pid 4314] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 4316] <... setpgid resumed>) = 0 [pid 4315] <... memfd_create resumed>) = 3 [pid 4314] <... openat resumed>) = 4 [pid 3618] close(3 [pid 4316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4315] ftruncate(3, 0 [pid 4314] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... close resumed>) = 0 [pid 4316] <... openat resumed>) = 3 [pid 4314] <... ioctl resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4316] write(3, "1000", 4 [pid 4315] <... ftruncate resumed>) = 0 [pid 4314] mkdir("./file0", 0777 [pid 4316] <... write resumed>) = 4 [pid 4314] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4317 [pid 4316] close(3 [pid 4315] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4314] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4312] <... mount resumed>) = -1 EIO (Input/output error) [pid 4316] <... close resumed>) = 0 [pid 4315] <... openat resumed>) = 4 [pid 4314] pipe2( [pid 4312] exit_group(0 [pid 4316] memfd_create("syzkaller", 0 [pid 4315] ioctl(4, LOOP_SET_FD, 3 [pid 4314] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4312] <... exit_group resumed>) = ? [pid 4316] <... memfd_create resumed>) = 3 [pid 4315] <... ioctl resumed>) = 0 [pid 4314] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4312] +++ exited with 0 +++ [pid 4316] ftruncate(3, 0 [pid 4315] mkdir("./file0", 0777 [pid 4314] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4312, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4316] <... ftruncate resumed>) = 0 [pid 4315] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4314] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4317 attached [pid 4316] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4315] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4316] <... openat resumed>) = 4 [pid 4315] pipe2( [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4317] <... prctl resumed>) = 0 [pid 4316] ioctl(4, LOOP_SET_FD, 3 [pid 4315] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4317] setpgid(0, 0 [pid 4316] <... ioctl resumed>) = 0 [pid 4315] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4317] <... setpgid resumed>) = 0 [pid 4316] mkdir("./file0", 0777 [pid 4315] <... write resumed>) = 21 [pid 3615] <... ioctl resumed>) = 0 [pid 4317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4316] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4315] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] close(3 [pid 4317] <... openat resumed>) = 3 [pid 4316] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4313] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... close resumed>) = 0 [pid 4317] write(3, "1000", 4 [pid 4316] pipe2( [pid 4313] exit_group(0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4317] <... write resumed>) = 4 [pid 4316] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4313] <... exit_group resumed>) = ? [pid 4317] close(3 [pid 4316] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4313] +++ exited with 0 +++ [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4318 [pid 4317] <... close resumed>) = 0 [pid 4316] <... write resumed>) = 21 [pid 4316] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4313, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4317] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4318 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4317] <... memfd_create resumed>) = 3 [pid 4318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4317] ftruncate(3, 0 [pid 4315] <... mount resumed>) = -1 EIO (Input/output error) [pid 4318] <... prctl resumed>) = 0 [pid 4317] <... ftruncate resumed>) = 0 [pid 4315] exit_group(0 [pid 4318] setpgid(0, 0 [pid 4317] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4315] <... exit_group resumed>) = ? [pid 4314] <... mount resumed>) = -1 EIO (Input/output error) [pid 4318] <... setpgid resumed>) = 0 [pid 4317] <... openat resumed>) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4317] ioctl(4, LOOP_SET_FD, 3 [pid 4315] +++ exited with 0 +++ [pid 4314] exit_group(0 [pid 3619] close(3 [pid 4318] <... openat resumed>) = 3 [pid 4317] <... ioctl resumed>) = 0 [pid 4314] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4315, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4318] write(3, "1000", 4 [pid 4317] mkdir("./file0", 0777 [pid 4314] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4318] <... write resumed>) = 4 [pid 4317] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4314, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4318] close(3 [pid 4317] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4319 [pid 4318] <... close resumed>) = 0 [pid 4317] pipe2( [pid 4318] memfd_create("syzkaller", 0 [pid 4317] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4319 attached [pid 4318] <... memfd_create resumed>) = 3 [pid 4317] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4318] ftruncate(3, 0 [pid 4317] <... write resumed>) = 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... openat resumed>) = 3 [pid 4319] <... prctl resumed>) = 0 [pid 4318] <... ftruncate resumed>) = 0 [pid 4317] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4319] setpgid(0, 0 [pid 4318] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 4319] <... setpgid resumed>) = 0 [pid 4318] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3616] close(3 [pid 4319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4318] ioctl(4, LOOP_SET_FD, 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 4319] <... openat resumed>) = 3 [pid 4318] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4319] write(3, "1000", 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4320 [pid 4319] <... write resumed>) = 4 [pid 4318] mkdir("./file0", 0777 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4321 [pid 4319] close(3./strace-static-x86_64: Process 4320 attached ) = 0 [pid 4320] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4319] memfd_create("syzkaller", 0 [pid 4320] <... prctl resumed>) = 0 [pid 4319] <... memfd_create resumed>) = 3 [pid 4318] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4316] <... mount resumed>) = -1 EIO (Input/output error) [pid 4320] setpgid(0, 0 [pid 4319] ftruncate(3, 0 [pid 4316] exit_group(0 [pid 4320] <... setpgid resumed>) = 0 [pid 4319] <... ftruncate resumed>) = 0 [pid 4316] <... exit_group resumed>) = ? [pid 4320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4319] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4318] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4316] +++ exited with 0 +++ [pid 4320] <... openat resumed>) = 3 [pid 4319] <... openat resumed>) = 4 [pid 4318] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4316, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4320] write(3, "1000", 4 [pid 4319] ioctl(4, LOOP_SET_FD, 3 [pid 4318] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4320] <... write resumed>) = 4 [pid 4319] <... ioctl resumed>) = 0 [pid 4320] close(3 [pid 4319] mkdir("./file0", 0777 [pid 4318] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4320] <... close resumed>) = 0 [pid 4319] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4318] <... write resumed>) = 21 [pid 3617] <... openat resumed>) = 3 [pid 4320] memfd_create("syzkaller", 0 [pid 4319] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4318] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4320] <... memfd_create resumed>) = 3 [pid 4319] pipe2( [pid 4320] ftruncate(3, 0 [pid 4319] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4321 attached [pid 4320] <... ftruncate resumed>) = 0 [pid 4319] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4321] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4320] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4319] <... write resumed>) = 21 [pid 4321] <... prctl resumed>) = 0 [pid 4320] <... openat resumed>) = 4 [pid 4319] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4321] setpgid(0, 0 [pid 4320] ioctl(4, LOOP_SET_FD, 3 [pid 4321] <... setpgid resumed>) = 0 [pid 4320] <... ioctl resumed>) = 0 [pid 4320] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4320] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4320] pipe2([5, 6], 0) = 0 [pid 4320] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4320] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4321] <... openat resumed>) = 3 [pid 4321] write(3, "1000", 4) = 4 [pid 4317] <... mount resumed>) = -1 EIO (Input/output error) [pid 4321] close(3) = 0 [pid 4317] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4321] memfd_create("syzkaller", 0 [pid 4317] <... exit_group resumed>) = ? [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4322 [pid 4320] <... mount resumed>) = -1 EIO (Input/output error) [pid 4320] exit_group(0 [pid 4317] +++ exited with 0 +++ [pid 4320] <... exit_group resumed>) = ? [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4317, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4320] +++ exited with 0 +++ ./strace-static-x86_64: Process 4322 attached [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4320, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4322] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4322] <... prctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4322] setpgid(0, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4322] <... setpgid resumed>) = 0 [pid 4322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4322] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4322] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4322] <... write resumed>) = 4 [pid 4322] close(3) = 0 [pid 4322] memfd_create("syzkaller", 0) = 3 [pid 4322] ftruncate(3, 0) = 0 [pid 4322] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4322] ioctl(4, LOOP_SET_FD, 3 [pid 4321] <... memfd_create resumed>) = 3 [pid 4322] <... ioctl resumed>) = 0 [pid 4321] ftruncate(3, 0 [pid 4322] mkdir("./file0", 0777 [pid 4321] <... ftruncate resumed>) = 0 [pid 4322] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4321] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4322] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4321] <... openat resumed>) = 4 [pid 4322] pipe2( [pid 4321] ioctl(4, LOOP_SET_FD, 3 [pid 4322] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4321] <... ioctl resumed>) = 0 [pid 4322] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4321] mkdir("./file0", 0777 [pid 4322] <... write resumed>) = 21 [pid 4321] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4322] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4321] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4321] pipe2([5, 6], 0) = 0 [pid 4321] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4321] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3618] close(3 [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4323 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4324 ./strace-static-x86_64: Process 4323 attached [pid 4323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4323] setpgid(0, 0) = 0 [pid 4323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4323] write(3, "1000", 4./strace-static-x86_64: Process 4324 attached ) = 4 [pid 4324] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4323] close(3 [pid 4324] <... prctl resumed>) = 0 [pid 4323] <... close resumed>) = 0 [pid 4324] setpgid(0, 0 [pid 4323] memfd_create("syzkaller", 0 [pid 4324] <... setpgid resumed>) = 0 [pid 4323] <... memfd_create resumed>) = 3 [pid 4324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4323] ftruncate(3, 0 [pid 4324] <... openat resumed>) = 3 [pid 4323] <... ftruncate resumed>) = 0 [pid 4324] write(3, "1000", 4 [pid 4323] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4318] <... mount resumed>) = -1 EIO (Input/output error) [pid 4324] <... write resumed>) = 4 [pid 4323] <... openat resumed>) = 4 [pid 4318] exit_group(0 [pid 4324] close(3 [pid 4323] ioctl(4, LOOP_SET_FD, 3 [pid 4318] <... exit_group resumed>) = ? [pid 4324] <... close resumed>) = 0 [pid 4323] <... ioctl resumed>) = 0 [pid 4318] +++ exited with 0 +++ [pid 4324] memfd_create("syzkaller", 0 [pid 4323] mkdir("./file0", 0777 [pid 4324] <... memfd_create resumed>) = 3 [pid 4323] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4318, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4324] ftruncate(3, 0 [pid 4323] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4324] <... ftruncate resumed>) = 0 [pid 4323] pipe2( [pid 3615] <... restart_syscall resumed>) = 0 [pid 4324] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4323] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4324] <... openat resumed>) = 4 [pid 4323] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4324] ioctl(4, LOOP_SET_FD, 3 [pid 4323] <... write resumed>) = 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4324] <... ioctl resumed>) = 0 [pid 4323] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 4324] mkdir("./file0", 0777 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4324] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... ioctl resumed>) = 0 [pid 4324] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] close(3 [pid 4324] pipe2( [pid 3615] <... close resumed>) = 0 [pid 4324] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4324] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4325 [pid 4324] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4319] <... mount resumed>) = -1 EIO (Input/output error) [pid 4319] exit_group(0) = ? [pid 4319] +++ exited with 0 +++ ./strace-static-x86_64: Process 4325 attached [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4319, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4325] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4325] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4325] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 4325] write(3, "1000", 4 [pid 3619] close(3 [pid 4325] <... write resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 4325] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4325] <... close resumed>) = 0 [pid 4325] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4326 [pid 4325] <... memfd_create resumed>) = 3 [pid 4325] ftruncate(3, 0) = 0 [pid 4325] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4326 attached ) = 4 [pid 4326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4325] ioctl(4, LOOP_SET_FD, 3 [pid 4326] <... prctl resumed>) = 0 [pid 4325] <... ioctl resumed>) = 0 [pid 4326] setpgid(0, 0 [pid 4325] mkdir("./file0", 0777 [pid 4326] <... setpgid resumed>) = 0 [pid 4325] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4325] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4326] <... openat resumed>) = 3 [pid 4325] pipe2( [pid 4326] write(3, "1000", 4 [pid 4325] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4326] <... write resumed>) = 4 [pid 4325] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4326] close(3 [pid 4325] <... write resumed>) = 21 [pid 4326] <... close resumed>) = 0 [pid 4325] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4326] memfd_create("syzkaller", 0) = 3 [pid 4326] ftruncate(3, 0) = 0 [pid 4326] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4326] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4326] ioctl(4, LOOP_CLR_FD) = 0 [pid 4326] ioctl(4, LOOP_SET_FD, 3 [pid 4324] <... mount resumed>) = -1 EIO (Input/output error) [pid 4326] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 4326] close(4) = 0 [pid 4324] exit_group(0 [pid 4326] close(3 [pid 4324] <... exit_group resumed>) = ? [pid 4326] <... close resumed>) = 0 [pid 4326] pipe2( [pid 4324] +++ exited with 0 +++ [pid 4326] <... pipe2 resumed>[3, 4], 0) = 0 [pid 4326] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4324, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4326] <... write resumed>) = 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4326] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3618] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4322] <... mount resumed>) = -1 EIO (Input/output error) [pid 4322] exit_group(0) = ? [pid 4322] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4322, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3618] close(3 [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4327 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4328 [pid 4321] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4327 attached [pid 4321] exit_group(0 [pid 4327] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4321] <... exit_group resumed>) = ? [pid 4327] <... prctl resumed>) = 0 [pid 4327] setpgid(0, 0) = 0 [pid 4327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4321] +++ exited with 0 +++ ./strace-static-x86_64: Process 4328 attached [pid 4327] <... openat resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4321, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4327] write(3, "1000", 4 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4327] <... write resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4327] close(3 [pid 4328] <... prctl resumed>) = 0 [pid 4327] <... close resumed>) = 0 [pid 4328] setpgid(0, 0 [pid 4327] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4328] <... setpgid resumed>) = 0 [pid 4327] <... memfd_create resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 4328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4327] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4328] <... openat resumed>) = 3 [pid 4327] <... ftruncate resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4328] write(3, "1000", 4 [pid 4327] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] close(3 [pid 4328] <... write resumed>) = 4 [pid 4327] <... openat resumed>) = 4 [pid 3616] <... close resumed>) = 0 [pid 4328] close(3 [pid 4327] ioctl(4, LOOP_SET_FD, 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4328] <... close resumed>) = 0 [pid 4327] <... ioctl resumed>) = 0 [pid 4328] memfd_create("syzkaller", 0 [pid 4327] mkdir("./file0", 0777 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4329 [pid 4328] <... memfd_create resumed>) = 3 [pid 4327] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4328] ftruncate(3, 0 [pid 4327] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4328] <... ftruncate resumed>) = 0 [pid 4327] pipe2( [pid 4328] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4327] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4327] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4328] <... openat resumed>) = 4 [pid 4327] <... write resumed>) = 21 [pid 4328] ioctl(4, LOOP_SET_FD, 3 [pid 4327] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4328] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4329 attached [pid 4328] mkdir("./file0", 0777 [pid 4329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4328] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4329] <... prctl resumed>) = 0 [pid 4329] setpgid(0, 0 [pid 4328] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4323] <... mount resumed>) = -1 EIO (Input/output error) [pid 4329] <... setpgid resumed>) = 0 [pid 4328] pipe2( [pid 4323] exit_group(0 [pid 4329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4328] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4323] <... exit_group resumed>) = ? [pid 4329] <... openat resumed>) = 3 [pid 4328] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4323] +++ exited with 0 +++ [pid 4329] write(3, "1000", 4 [pid 4328] <... write resumed>) = 21 [pid 4329] <... write resumed>) = 4 [pid 4328] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4323, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4329] close(3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4329] <... close resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4329] memfd_create("syzkaller", 0) = 3 [pid 4329] ftruncate(3, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4329] <... ftruncate resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4329] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4329] <... openat resumed>) = 4 [pid 4329] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4329] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4329] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4329] pipe2([5, 6], 0) = 0 [pid 4329] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4329] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4326] <... mount resumed>) = -1 EIO (Input/output error) [pid 4326] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 4326] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4326] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4330 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4326, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4330 attached ) = -1 ENXIO (No such device or address) [pid 4330] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] close(3 [pid 4330] <... prctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4330] setpgid(0, 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4330] <... setpgid resumed>) = 0 [pid 4330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4331 [pid 4330] <... openat resumed>) = 3 [pid 4330] write(3, "1000", 4) = 4 [pid 4330] close(3) = 0 [pid 4330] memfd_create("syzkaller", 0) = 3 [pid 4330] ftruncate(3, 0) = 0 [pid 4330] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4330] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4327] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4331 attached [pid 4330] mkdir("./file0", 0777 [pid 4327] exit_group(0 [pid 4330] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4327] <... exit_group resumed>) = ? [pid 4331] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4330] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4327] +++ exited with 0 +++ [pid 4331] <... prctl resumed>) = 0 [pid 4331] setpgid(0, 0 [pid 4330] pipe2([5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4327, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4330] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4331] <... setpgid resumed>) = 0 [pid 4330] <... write resumed>) = 21 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4330] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4325] <... mount resumed>) = -1 EIO (Input/output error) [pid 4325] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4331] <... openat resumed>) = 3 [pid 4325] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 4331] write(3, "1000", 4 [pid 4325] +++ exited with 0 +++ [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4331] <... write resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4325, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] close(3) = 0 [pid 4331] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4331] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4331] memfd_create("syzkaller", 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4332 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4331] <... memfd_create resumed>) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4331] ftruncate(3, 0 [pid 3615] close(3./strace-static-x86_64: Process 4332 attached [pid 4331] <... ftruncate resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4331] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4332] <... prctl resumed>) = 0 [pid 4331] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4333 attached [pid 4332] setpgid(0, 0 [pid 4331] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4333 [pid 4333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4332] <... setpgid resumed>) = 0 [pid 4331] <... ioctl resumed>) = 0 [pid 4333] <... prctl resumed>) = 0 [pid 4332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4331] mkdir("./file0", 0777 [pid 4332] <... openat resumed>) = 3 [pid 4332] write(3, "1000", 4) = 4 [pid 4332] close(3) = 0 [pid 4333] setpgid(0, 0 [pid 4332] memfd_create("syzkaller", 0 [pid 4331] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4328] <... mount resumed>) = -1 EIO (Input/output error) [pid 4333] <... setpgid resumed>) = 0 [pid 4332] <... memfd_create resumed>) = 3 [pid 4331] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4328] exit_group(0 [pid 4332] ftruncate(3, 0 [pid 4328] <... exit_group resumed>) = ? [pid 4333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4332] <... ftruncate resumed>) = 0 [pid 4331] pipe2( [pid 4328] +++ exited with 0 +++ [pid 4333] <... openat resumed>) = 3 [pid 4332] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4331] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4328, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4333] write(3, "1000", 4 [pid 4332] <... openat resumed>) = 4 [pid 4331] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4333] <... write resumed>) = 4 [pid 4332] ioctl(4, LOOP_SET_FD, 3 [pid 4331] <... write resumed>) = 21 [pid 4333] close(3 [pid 4332] <... ioctl resumed>) = 0 [pid 4331] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4333] <... close resumed>) = 0 [pid 4332] mkdir("./file0", 0777 [pid 4333] memfd_create("syzkaller", 0 [pid 4332] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4333] <... memfd_create resumed>) = 3 [pid 4332] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4333] ftruncate(3, 0 [pid 4332] pipe2( [pid 3618] <... openat resumed>) = 3 [pid 4333] <... ftruncate resumed>) = 0 [pid 4332] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4333] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4332] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4333] <... openat resumed>) = 4 [pid 4332] <... write resumed>) = 21 [pid 4333] ioctl(4, LOOP_SET_FD, 3 [pid 4332] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4333] <... ioctl resumed>) = 0 [pid 4333] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4333] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4333] pipe2([5, 6], 0) = 0 [pid 4333] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4333] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 4329] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] close(3 [pid 4329] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 4329] <... exit_group resumed>) = ? [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4329] +++ exited with 0 +++ [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4334 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4329, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4334 attached [pid 4334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4334] <... prctl resumed>) = 0 [pid 4334] setpgid(0, 0) = 0 [pid 4334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4334] write(3, "1000", 4) = 4 [pid 4334] close(3) = 0 [pid 4334] memfd_create("syzkaller", 0) = 3 [pid 4334] ftruncate(3, 0) = 0 [pid 4334] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4334] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4334] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4334] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4330] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4334] pipe2( [pid 4330] exit_group(0 [pid 3616] close(3 [pid 4334] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4330] <... exit_group resumed>) = ? [pid 4334] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... close resumed>) = 0 [pid 4334] <... write resumed>) = 21 [pid 4330] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4334] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4330, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4335 ./strace-static-x86_64: Process 4335 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4335] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 4335] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4335] setpgid(0, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4335] <... setpgid resumed>) = 0 [pid 3620] close(3 [pid 4333] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 4333] exit_group(0) = ? [pid 4333] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4333, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4336 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4335] <... openat resumed>) = 3 [pid 4335] write(3, "1000", 4 [pid 3615] <... ioctl resumed>) = 0 [pid 4335] <... write resumed>) = 4 [pid 3615] close(3 [pid 4335] close(3 [pid 3615] <... close resumed>) = 0 [pid 4335] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4335] memfd_create("syzkaller", 0) = 3 [pid 4335] ftruncate(3, 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4337 ./strace-static-x86_64: Process 4336 attached [pid 4335] <... ftruncate resumed>) = 0 [pid 4335] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4335] <... openat resumed>) = 4 [pid 4336] <... prctl resumed>) = 0 [pid 4336] setpgid(0, 0 [pid 4335] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4337 attached [pid 4336] <... setpgid resumed>) = 0 [pid 4335] <... ioctl resumed>) = 0 [pid 4335] mkdir("./file0", 0777 [pid 4337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4335] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4337] <... prctl resumed>) = 0 [pid 4335] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4337] setpgid(0, 0) = 0 [pid 4335] pipe2( [pid 4336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4335] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4335] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4337] <... openat resumed>) = 3 [pid 4336] <... openat resumed>) = 3 [pid 4335] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4337] write(3, "1000", 4 [pid 4336] write(3, "1000", 4 [pid 4337] <... write resumed>) = 4 [pid 4336] <... write resumed>) = 4 [pid 4336] close(3 [pid 4337] close(3 [pid 4336] <... close resumed>) = 0 [pid 4336] memfd_create("syzkaller", 0 [pid 4337] <... close resumed>) = 0 [pid 4336] <... memfd_create resumed>) = 3 [pid 4336] ftruncate(3, 0 [pid 4337] memfd_create("syzkaller", 0 [pid 4336] <... ftruncate resumed>) = 0 [pid 4336] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4337] <... memfd_create resumed>) = 3 [pid 4336] <... openat resumed>) = 4 [pid 4337] ftruncate(3, 0 [pid 4336] ioctl(4, LOOP_SET_FD, 3 [pid 4337] <... ftruncate resumed>) = 0 [pid 4336] <... ioctl resumed>) = 0 [pid 4337] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4336] mkdir("./file0", 0777 [pid 4337] <... openat resumed>) = 4 [pid 4336] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4336] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4336] pipe2([5, 6], 0) = 0 [pid 4336] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4336] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4331] <... mount resumed>) = -1 EIO (Input/output error) [pid 4337] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4331] exit_group(0 [pid 4337] mkdir("./file0", 0777 [pid 4331] <... exit_group resumed>) = ? [pid 4331] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4331, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4337] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4337] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4337] pipe2([5, 6], 0) = 0 [pid 4332] <... mount resumed>) = -1 EIO (Input/output error) [pid 4337] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4337] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4332] exit_group(0) = ? [pid 4332] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4332, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4336] <... mount resumed>) = -1 EIO (Input/output error) [pid 4336] exit_group(0) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 4336] +++ exited with 0 +++ [pid 3617] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4336, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] close(3 [pid 3617] close(3 [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4339 attached ./strace-static-x86_64: Process 4338 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4338 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4339 [pid 4339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4338] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4335] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 4335] exit_group(0) = ? [pid 4339] <... prctl resumed>) = 0 [pid 4338] <... prctl resumed>) = 0 [pid 4335] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4335, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4334] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4339] setpgid(0, 0 [pid 4338] setpgid(0, 0 [pid 4334] exit_group(0) = ? [pid 4339] <... setpgid resumed>) = 0 [pid 4338] <... setpgid resumed>) = 0 [pid 4334] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4334, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4339] <... openat resumed>) = 3 [pid 4339] write(3, "1000", 4 [pid 4338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4340 [pid 4339] <... write resumed>) = 4 [pid 4338] <... openat resumed>) = 3 [pid 4339] close(3) = 0 ./strace-static-x86_64: Process 4340 attached [pid 4339] memfd_create("syzkaller", 0 [pid 4340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4339] <... memfd_create resumed>) = 3 [pid 4340] <... prctl resumed>) = 0 [pid 4338] write(3, "1000", 4 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4340] setpgid(0, 0 [pid 3618] close(3 [pid 4340] <... setpgid resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4341 [pid 4340] <... openat resumed>) = 3 [pid 4339] ftruncate(3, 0 [pid 4338] <... write resumed>) = 4 [pid 4340] write(3, "1000", 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4342 [pid 4338] close(3 [pid 4340] <... write resumed>) = 4 [pid 4339] <... ftruncate resumed>) = 0 [pid 4338] <... close resumed>) = 0 [pid 4340] close(3) = 0 [pid 4340] memfd_create("syzkaller", 0 [pid 4339] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4338] memfd_create("syzkaller", 0 [pid 4340] <... memfd_create resumed>) = 3 [pid 4340] ftruncate(3, 0 [pid 4339] <... openat resumed>) = 4 [pid 4340] <... ftruncate resumed>) = 0 [pid 4338] <... memfd_create resumed>) = 3 [pid 4340] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4340] ioctl(4, LOOP_SET_FD, 3 [pid 4339] ioctl(4, LOOP_SET_FD, 3 [pid 4338] ftruncate(3, 0 [pid 4340] <... ioctl resumed>) = 0 [pid 4340] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4339] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4341 attached [pid 4340] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4339] mkdir("./file0", 0777./strace-static-x86_64: Process 4342 attached [pid 4341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4340] pipe2( [pid 4338] <... ftruncate resumed>) = 0 [pid 4342] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4341] <... prctl resumed>) = 0 [pid 4340] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4339] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4338] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4342] <... prctl resumed>) = 0 [pid 4341] setpgid(0, 0 [pid 4340] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4339] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4338] <... openat resumed>) = 4 [pid 4342] setpgid(0, 0 [pid 4341] <... setpgid resumed>) = 0 [pid 4340] <... write resumed>) = 21 [pid 4339] pipe2( [pid 4338] ioctl(4, LOOP_SET_FD, 3 [pid 4342] <... setpgid resumed>) = 0 [pid 4341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4340] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4339] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4341] <... openat resumed>) = 3 [pid 4339] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4338] <... ioctl resumed>) = 0 [pid 4342] <... openat resumed>) = 3 [pid 4341] write(3, "1000", 4 [pid 4339] <... write resumed>) = 21 [pid 4338] mkdir("./file0", 0777 [pid 4342] write(3, "1000", 4 [pid 4341] <... write resumed>) = 4 [pid 4339] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4338] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4337] <... mount resumed>) = -1 EIO (Input/output error) [pid 4342] <... write resumed>) = 4 [pid 4341] close(3 [pid 4342] close(3 [pid 4341] <... close resumed>) = 0 [pid 4342] <... close resumed>) = 0 [pid 4341] memfd_create("syzkaller", 0 [pid 4338] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4337] exit_group(0 [pid 4342] memfd_create("syzkaller", 0 [pid 4341] <... memfd_create resumed>) = 3 [pid 4338] pipe2( [pid 4342] <... memfd_create resumed>) = 3 [pid 4341] ftruncate(3, 0 [pid 4337] <... exit_group resumed>) = ? [pid 4342] ftruncate(3, 0 [pid 4341] <... ftruncate resumed>) = 0 [pid 4338] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4342] <... ftruncate resumed>) = 0 [pid 4341] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4337] +++ exited with 0 +++ [pid 4342] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4341] <... openat resumed>) = 4 [pid 4342] <... openat resumed>) = 4 [pid 4341] ioctl(4, LOOP_SET_FD, 3 [pid 4342] ioctl(4, LOOP_SET_FD, 3 [pid 4341] <... ioctl resumed>) = 0 [pid 4342] <... ioctl resumed>) = 0 [pid 4341] mkdir("./file0", 0777 [pid 4342] mkdir("./file0", 0777 [pid 4341] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4342] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4341] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4342] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4341] pipe2( [pid 4342] pipe2( [pid 4341] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4338] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4342] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4341] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4338] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4337, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4342] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4341] <... write resumed>) = 21 [pid 4338] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4342] <... write resumed>) = 21 [pid 4341] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4342] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4340] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4340] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 4340] <... exit_group resumed>) = ? [pid 4340] +++ exited with 0 +++ [pid 3615] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4340, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4343 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4343 attached [pid 4339] <... mount resumed>) = -1 EIO (Input/output error) [pid 4339] exit_group(0) = ? [pid 4343] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4339] +++ exited with 0 +++ [pid 4343] <... prctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4339, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4343] setpgid(0, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4343] <... setpgid resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4344 [pid 4343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4343] write(3, "1000", 4) = 4 [pid 4343] close(3) = 0 [pid 3620] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4344 attached [pid 4344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4344] setpgid(0, 0) = 0 [pid 4344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4344] write(3, "1000", 4) = 4 [pid 4344] close(3) = 0 [pid 4344] memfd_create("syzkaller", 0) = 3 [pid 4344] ftruncate(3, 0) = 0 [pid 4344] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4344] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4344] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4344] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4344] pipe2( [pid 4343] memfd_create("syzkaller", 0 [pid 4338] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4344] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4338] exit_group(0 [pid 4344] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4343] <... memfd_create resumed>) = 3 [pid 4338] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4344] <... write resumed>) = 21 [pid 4343] ftruncate(3, 0 [pid 4338] +++ exited with 0 +++ [pid 4344] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4343] <... ftruncate resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4338, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4343] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4343] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4345 [pid 4343] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4343] mkdir("./file0", 0777 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4345 attached [pid 4345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4343] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4345] <... prctl resumed>) = 0 [pid 4343] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4343] pipe2( [pid 4345] setpgid(0, 0 [pid 4343] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4345] <... setpgid resumed>) = 0 [pid 4343] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4343] <... write resumed>) = 21 [pid 4345] <... openat resumed>) = 3 [pid 4343] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4345] write(3, "1000", 4) = 4 [pid 4345] close(3) = 0 [pid 4345] memfd_create("syzkaller", 0) = 3 [pid 4345] ftruncate(3, 0) = 0 [pid 4345] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4345] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4345] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4345] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4345] pipe2([5, 6], 0) = 0 [pid 4345] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4345] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4341] <... mount resumed>) = -1 EIO (Input/output error) [pid 4341] exit_group(0) = ? [pid 4341] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4341, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4346 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4346 attached [pid 4346] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4342] <... mount resumed>) = -1 EIO (Input/output error) [pid 4342] exit_group(0) = ? [pid 4342] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4342, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4346] <... prctl resumed>) = 0 [pid 3616] close(3 [pid 4346] setpgid(0, 0 [pid 3616] <... close resumed>) = 0 [pid 4346] <... setpgid resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4347 [pid 4346] write(3, "1000", 4) = 4 [pid 4346] close(3) = 0 [pid 4346] memfd_create("syzkaller", 0 [pid 3618] close(3 [pid 4346] <... memfd_create resumed>) = 3 [pid 4346] ftruncate(3, 0) = 0 [pid 4346] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4347 attached ) = 4 [pid 4347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4346] ioctl(4, LOOP_SET_FD, 3 [pid 4347] <... prctl resumed>) = 0 [pid 4346] <... ioctl resumed>) = 0 [pid 4347] setpgid(0, 0 [pid 4346] mkdir("./file0", 0777 [pid 4347] <... setpgid resumed>) = 0 [pid 4346] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4346] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4347] <... openat resumed>) = 3 [pid 4346] pipe2( [pid 4347] write(3, "1000", 4 [pid 4346] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... close resumed>) = 0 [pid 4347] <... write resumed>) = 4 [pid 4346] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4347] close(3 [pid 4346] <... write resumed>) = 21 [pid 4345] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4347] <... close resumed>) = 0 [pid 4346] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4347] memfd_create("syzkaller", 0 [pid 4345] exit_group(0 [pid 4347] <... memfd_create resumed>) = 3 [pid 4345] <... exit_group resumed>) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4348 [pid 4347] ftruncate(3, 0) = 0 [pid 4347] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4347] ioctl(4, LOOP_SET_FD, 3 [pid 4345] +++ exited with 0 +++ [pid 4347] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4345, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4347] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4347] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4347] pipe2( [pid 3620] <... openat resumed>) = 3 [pid 4347] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4347] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4347] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4348 attached [pid 4348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4344] <... mount resumed>) = -1 EIO (Input/output error) [pid 4344] exit_group(0) = ? [pid 4344] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4344, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4348] setpgid(0, 0) = 0 [pid 4348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4348] <... openat resumed>) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4348] write(3, "1000", 4 [pid 3620] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4348] <... write resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4348] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4349 [pid 4348] <... close resumed>) = 0 [pid 4348] memfd_create("syzkaller", 0) = 3 [pid 4348] ftruncate(3, 0 [pid 4343] <... mount resumed>) = -1 EIO (Input/output error) [pid 4348] <... ftruncate resumed>) = 0 [pid 4343] exit_group(0 [pid 4348] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4343] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4349 attached [pid 4348] <... openat resumed>) = 4 [pid 4343] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4343, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4348] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3617] close(3 [pid 4348] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4348] mkdir("./file0", 0777 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4348] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 4348] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4350 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4349] <... prctl resumed>) = 0 [pid 4348] pipe2( [pid 4349] setpgid(0, 0 [pid 4348] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4349] <... setpgid resumed>) = 0 [pid 4348] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4350 attached [pid 4349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4348] <... write resumed>) = 21 [pid 4349] <... openat resumed>) = 3 [pid 4348] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4350] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4349] write(3, "1000", 4 [pid 4350] setpgid(0, 0 [pid 4349] <... write resumed>) = 4 [pid 4346] <... mount resumed>) = -1 EIO (Input/output error) [pid 4350] <... setpgid resumed>) = 0 [pid 4349] close(3 [pid 4346] exit_group(0 [pid 4350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4349] <... close resumed>) = 0 [pid 4346] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4350] <... openat resumed>) = 3 [pid 4349] memfd_create("syzkaller", 0 [pid 4346] +++ exited with 0 +++ [pid 3615] close(3 [pid 4350] write(3, "1000", 4 [pid 4349] <... memfd_create resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 4350] <... write resumed>) = 4 [pid 4349] ftruncate(3, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4346, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4350] close(3 [pid 4349] <... ftruncate resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4350] <... close resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4351 [pid 4350] memfd_create("syzkaller", 0) = 3 [pid 4349] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4350] ftruncate(3, 0 [pid 4349] <... openat resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4350] <... ftruncate resumed>) = 0 [pid 4349] ioctl(4, LOOP_SET_FD, 3 [pid 4347] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 4350] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4349] <... ioctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4350] <... openat resumed>) = 4 [pid 4349] mkdir("./file0", 0777 [pid 4347] exit_group(0 [pid 4350] ioctl(4, LOOP_SET_FD, 3 [pid 4349] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4351 attached [pid 4350] <... ioctl resumed>) = 0 [pid 4349] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4347] <... exit_group resumed>) = ? [pid 4351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4350] mkdir("./file0", 0777 [pid 4349] pipe2( [pid 4351] <... prctl resumed>) = 0 [pid 4350] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4349] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4351] setpgid(0, 0 [pid 4350] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4349] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4351] <... setpgid resumed>) = 0 [pid 4350] pipe2( [pid 4349] <... write resumed>) = 21 [pid 4351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4350] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4349] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4347] +++ exited with 0 +++ [pid 4351] <... openat resumed>) = 3 [pid 4350] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4347, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4351] write(3, "1000", 4 [pid 4350] <... write resumed>) = 21 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4351] <... write resumed>) = 4 [pid 4350] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... restart_syscall resumed>) = 0 [pid 4351] close(3) = 0 [pid 4351] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4351] <... memfd_create resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 4351] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4351] <... ftruncate resumed>) = 0 [pid 4351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4351] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4351] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4351] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4351] pipe2([5, 6], 0) = 0 [pid 4351] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4351] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4348] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4352 [pid 4351] <... mount resumed>) = -1 EIO (Input/output error) [pid 4348] exit_group(0 [pid 4351] exit_group(0) = ? [pid 4348] <... exit_group resumed>) = ? [pid 4351] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4351, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4348] +++ exited with 0 +++ [pid 3615] <... restart_syscall resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4348, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4353 attached , child_tidptr=0x5555570a1690) = 4353 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4354 [pid 4353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4353] setpgid(0, 0) = 0 [pid 4353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4353] write(3, "1000", 4) = 4 [pid 4353] close(3) = 0 [pid 4353] memfd_create("syzkaller", 0) = 3 [pid 4353] ftruncate(3, 0./strace-static-x86_64: Process 4354 attached ) = 0 [pid 4354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4353] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4354] <... prctl resumed>) = 0 [pid 4353] <... openat resumed>) = 4 [pid 4354] setpgid(0, 0 [pid 4353] ioctl(4, LOOP_SET_FD, 3 [pid 4354] <... setpgid resumed>) = 0 [pid 4353] <... ioctl resumed>) = 0 [pid 4354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4353] mkdir("./file0", 0777 [pid 4354] <... openat resumed>) = 3 [pid 4353] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4354] write(3, "1000", 4 [pid 4353] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4354] <... write resumed>) = 4 [pid 4353] pipe2( [pid 4354] close(3 [pid 4353] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4354] <... close resumed>) = 0 [pid 4353] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4354] memfd_create("syzkaller", 0 [pid 4353] <... write resumed>) = 21 [pid 4354] <... memfd_create resumed>) = 3 [pid 4353] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4352 attached [pid 4354] ftruncate(3, 0) = 0 [pid 4354] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4354] ioctl(4, LOOP_SET_FD, 3 [pid 4352] <... prctl resumed>) = 0 [pid 4352] setpgid(0, 0) = 0 [pid 4352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4354] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4354] mkdir("./file0", 0777 [pid 4352] <... openat resumed>) = 3 [pid 3615] close(3 [pid 4354] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4352] write(3, "1000", 4 [pid 3615] <... close resumed>) = 0 [pid 4354] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4352] <... write resumed>) = 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4354] pipe2( [pid 4352] close(3 [pid 4354] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4352] <... close resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4355 [pid 4354] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4352] memfd_create("syzkaller", 0 [pid 4354] <... write resumed>) = 21 [pid 4352] <... memfd_create resumed>) = 3 [pid 4354] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4352] ftruncate(3, 0 [pid 4349] <... mount resumed>) = -1 EIO (Input/output error) [pid 4352] <... ftruncate resumed>) = 0 [pid 4352] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4349] exit_group(0 [pid 4352] <... openat resumed>) = 4 [pid 4349] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4355 attached [pid 4352] ioctl(4, LOOP_SET_FD, 3 [pid 4355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4349] +++ exited with 0 +++ [pid 4355] <... prctl resumed>) = 0 [pid 4352] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4349, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4355] setpgid(0, 0 [pid 4352] mkdir("./file0", 0777 [pid 4355] <... setpgid resumed>) = 0 [pid 4352] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4352] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4355] <... openat resumed>) = 3 [pid 4352] pipe2( [pid 4355] write(3, "1000", 4 [pid 4352] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4355] <... write resumed>) = 4 [pid 4352] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4355] close(3 [pid 4352] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 4355] <... close resumed>) = 0 [pid 4352] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4355] memfd_create("syzkaller", 0) = 3 [pid 4355] ftruncate(3, 0) = 0 [pid 4355] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4355] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4355] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4355] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4355] pipe2([5, 6], 0) = 0 [pid 4355] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4355] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4350] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4356 [pid 4350] exit_group(0) = ? ./strace-static-x86_64: Process 4356 attached [pid 4356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4356] setpgid(0, 0 [pid 4350] +++ exited with 0 +++ [pid 4356] <... setpgid resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4350, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4356] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4356] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4356] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4356] <... close resumed>) = 0 [pid 4356] memfd_create("syzkaller", 0) = 3 [pid 4356] ftruncate(3, 0) = 0 [pid 4356] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4356] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4356] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4356] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4356] pipe2([5, 6], 0) = 0 [pid 4356] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4356] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4352] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4352] exit_group(0 [pid 3617] close(3 [pid 4352] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4352] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4352, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4357 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4357 attached ) = 3 [pid 4357] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4358 ./strace-static-x86_64: Process 4358 attached [pid 4357] <... prctl resumed>) = 0 [pid 4354] <... mount resumed>) = -1 EIO (Input/output error) [pid 4358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4357] setpgid(0, 0 [pid 4354] exit_group(0 [pid 4358] <... prctl resumed>) = 0 [pid 4357] <... setpgid resumed>) = 0 [pid 4354] <... exit_group resumed>) = ? [pid 4358] setpgid(0, 0 [pid 4357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4354] +++ exited with 0 +++ [pid 4358] <... setpgid resumed>) = 0 [pid 4357] <... openat resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4354, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4357] write(3, "1000", 4 [pid 4358] <... openat resumed>) = 3 [pid 4357] <... write resumed>) = 4 [pid 4358] write(3, "1000", 4 [pid 4357] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4358] <... write resumed>) = 4 [pid 4357] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4358] close(3 [pid 4357] memfd_create("syzkaller", 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4358] <... close resumed>) = 0 [pid 4357] <... memfd_create resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 4358] memfd_create("syzkaller", 0 [pid 4357] ftruncate(3, 0 [pid 3616] close(3 [pid 4357] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4357] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4358] <... memfd_create resumed>) = 3 [pid 4357] <... openat resumed>) = 4 [pid 4358] ftruncate(3, 0 [pid 4357] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4359 [pid 4357] <... ioctl resumed>) = 0 [pid 4358] <... ftruncate resumed>) = 0 [pid 4357] mkdir("./file0", 0777 [pid 4353] <... mount resumed>) = -1 EIO (Input/output error) [pid 4357] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4353] exit_group(0./strace-static-x86_64: Process 4359 attached [pid 4357] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4353] <... exit_group resumed>) = ? [pid 4359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4357] pipe2( [pid 4353] +++ exited with 0 +++ [pid 4359] <... prctl resumed>) = 0 [pid 4358] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4357] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4353, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4359] setpgid(0, 0 [pid 4358] <... openat resumed>) = 4 [pid 4357] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4359] <... setpgid resumed>) = 0 [pid 4358] ioctl(4, LOOP_SET_FD, 3 [pid 4357] <... write resumed>) = 21 [pid 4359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4358] <... ioctl resumed>) = 0 [pid 4357] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4359] <... openat resumed>) = 3 [pid 4358] mkdir("./file0", 0777 [pid 3618] <... openat resumed>) = 3 [pid 4359] write(3, "1000", 4 [pid 4358] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4359] <... write resumed>) = 4 [pid 4358] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... ioctl resumed>) = 0 [pid 4359] close(3 [pid 4358] pipe2( [pid 3618] close(3 [pid 4359] <... close resumed>) = 0 [pid 4358] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... close resumed>) = 0 [pid 4359] memfd_create("syzkaller", 0 [pid 4358] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4359] <... memfd_create resumed>) = 3 [pid 4359] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4360 [pid 4359] <... ftruncate resumed>) = 0 [pid 4359] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4359] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4359] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4359] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4355] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4360 attached [pid 4359] pipe2( [pid 4360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4359] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4358] <... write resumed>) = 21 [pid 4355] exit_group(0 [pid 4360] <... prctl resumed>) = 0 [pid 4359] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4358] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4355] <... exit_group resumed>) = ? [pid 4360] setpgid(0, 0 [pid 4359] <... write resumed>) = 21 [pid 4360] <... setpgid resumed>) = 0 [pid 4359] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4355] +++ exited with 0 +++ [pid 4360] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4355, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4360] write(3, "1000", 4) = 4 [pid 4360] close(3) = 0 [pid 4360] memfd_create("syzkaller", 0) = 3 [pid 4360] ftruncate(3, 0) = 0 [pid 4360] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4360] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... openat resumed>) = 3 [pid 4360] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4360] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4360] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4360] pipe2([5, 6], 0) = 0 [pid 4360] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4360] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4361 ./strace-static-x86_64: Process 4361 attached [pid 4361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4361] setpgid(0, 0) = 0 [pid 4361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4361] write(3, "1000", 4) = 4 [pid 4361] close(3) = 0 [pid 4361] memfd_create("syzkaller", 0) = 3 [pid 4361] ftruncate(3, 0) = 0 [pid 4361] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4361] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4361] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4361] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4361] pipe2([5, 6], 0) = 0 [pid 4361] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4361] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4356] <... mount resumed>) = -1 EIO (Input/output error) [pid 4356] exit_group(0) = ? [pid 4356] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4356, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4357] <... mount resumed>) = -1 EIO (Input/output error) [pid 4357] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4357] <... exit_group resumed>) = ? [pid 4357] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4357, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4358] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 4358] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4358] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4362 [pid 4358] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4358, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4362 attached [pid 3617] <... ioctl resumed>) = 0 [pid 4362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] close(3 [pid 4362] setpgid(0, 0 [pid 3617] <... close resumed>) = 0 [pid 4362] <... setpgid resumed>) = 0 [pid 4360] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4360] exit_group(0 [pid 3619] <... openat resumed>) = 3 [pid 4360] <... exit_group resumed>) = ? [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4362] <... openat resumed>) = 3 [pid 4360] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 4362] write(3, "1000", 4 [pid 3619] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4360, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4362] <... write resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4363 [pid 4362] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4362] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4362] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4364 [pid 3618] <... openat resumed>) = 3 [pid 4362] <... memfd_create resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4362] ftruncate(3, 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4362] <... ftruncate resumed>) = 0 [pid 3618] close(3./strace-static-x86_64: Process 4364 attached [pid 4362] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... close resumed>) = 0 [pid 4364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4362] <... openat resumed>) = 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4364] <... prctl resumed>) = 0 [pid 4362] ioctl(4, LOOP_SET_FD, 3 [pid 4364] setpgid(0, 0 [pid 4362] <... ioctl resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4365 [pid 4364] <... setpgid resumed>) = 0 [pid 4362] mkdir("./file0", 0777./strace-static-x86_64: Process 4363 attached [pid 4364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4362] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4364] <... openat resumed>) = 3 [pid 4362] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4365 attached [pid 4364] write(3, "1000", 4 [pid 4362] pipe2( [pid 4365] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4364] <... write resumed>) = 4 [pid 4362] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4365] <... prctl resumed>) = 0 [pid 4364] close(3 [pid 4363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4362] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4361] <... mount resumed>) = -1 EIO (Input/output error) [pid 4365] setpgid(0, 0 [pid 4364] <... close resumed>) = 0 [pid 4363] <... prctl resumed>) = 0 [pid 4362] <... write resumed>) = 21 [pid 4361] exit_group(0 [pid 4365] <... setpgid resumed>) = 0 [pid 4364] memfd_create("syzkaller", 0 [pid 4363] setpgid(0, 0 [pid 4362] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4361] <... exit_group resumed>) = ? [pid 4365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4364] <... memfd_create resumed>) = 3 [pid 4363] <... setpgid resumed>) = 0 [pid 4361] +++ exited with 0 +++ [pid 4365] <... openat resumed>) = 3 [pid 4364] ftruncate(3, 0 [pid 4363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4361, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4365] write(3, "1000", 4 [pid 4364] <... ftruncate resumed>) = 0 [pid 4363] <... openat resumed>) = 3 [pid 4365] <... write resumed>) = 4 [pid 4364] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4363] write(3, "1000", 4 [pid 4365] close(3 [pid 4364] <... openat resumed>) = 4 [pid 4363] <... write resumed>) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4365] <... close resumed>) = 0 [pid 4364] ioctl(4, LOOP_SET_FD, 3 [pid 4363] close(3 [pid 3615] <... openat resumed>) = 3 [pid 4365] memfd_create("syzkaller", 0 [pid 4364] <... ioctl resumed>) = 0 [pid 4363] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4365] <... memfd_create resumed>) = 3 [pid 4364] mkdir("./file0", 0777 [pid 4363] memfd_create("syzkaller", 0 [pid 4365] ftruncate(3, 0 [pid 4364] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4363] <... memfd_create resumed>) = 3 [pid 4365] <... ftruncate resumed>) = 0 [pid 4364] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4363] ftruncate(3, 0 [pid 4365] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4364] pipe2( [pid 4363] <... ftruncate resumed>) = 0 [pid 4365] <... openat resumed>) = 4 [pid 4364] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4363] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4365] ioctl(4, LOOP_SET_FD, 3 [pid 4364] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4363] <... openat resumed>) = 4 [pid 4365] <... ioctl resumed>) = 0 [pid 4364] <... write resumed>) = 21 [pid 4363] ioctl(4, LOOP_SET_FD, 3 [pid 4365] mkdir("./file0", 0777 [pid 4364] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4363] <... ioctl resumed>) = 0 [pid 4365] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4363] mkdir("./file0", 0777 [pid 4365] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4359] <... mount resumed>) = -1 EIO (Input/output error) [pid 4365] pipe2( [pid 4363] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4359] exit_group(0 [pid 4365] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4363] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4359] <... exit_group resumed>) = ? [pid 4365] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4363] pipe2( [pid 4359] +++ exited with 0 +++ [pid 4365] <... write resumed>) = 21 [pid 4363] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4365] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4363] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4359, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4363] <... write resumed>) = 21 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4363] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4366 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4362] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4366 attached [pid 4362] exit_group(0 [pid 3616] <... close resumed>) = 0 [pid 4366] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4362] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4366] <... prctl resumed>) = 0 [pid 4366] setpgid(0, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4367 [pid 4366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4362] +++ exited with 0 +++ [pid 4366] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4362, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4366] write(3, "1000", 4 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4366] <... write resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4366] close(3) = 0 [pid 4366] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4366] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4367 attached [pid 4366] ftruncate(3, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4366] <... ftruncate resumed>) = 0 [pid 4367] <... prctl resumed>) = 0 [pid 4366] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4367] setpgid(0, 0 [pid 4366] <... openat resumed>) = 4 [pid 4367] <... setpgid resumed>) = 0 [pid 4366] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4366] mkdir("./file0", 0777 [pid 4367] <... openat resumed>) = 3 [pid 4366] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4367] write(3, "1000", 4 [pid 4366] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4365] <... mount resumed>) = -1 EIO (Input/output error) [pid 4364] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4367] <... write resumed>) = 4 [pid 4366] pipe2( [pid 3620] close(3 [pid 4367] close(3 [pid 4366] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4365] exit_group(0 [pid 4364] exit_group(0 [pid 4367] <... close resumed>) = 0 [pid 4366] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... close resumed>) = 0 [pid 4364] <... exit_group resumed>) = ? [pid 4365] <... exit_group resumed>) = ? [pid 4367] memfd_create("syzkaller", 0 [pid 4366] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4366] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4364] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4364, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4368 attached [pid 4367] <... memfd_create resumed>) = 3 [pid 4365] +++ exited with 0 +++ [pid 4367] ftruncate(3, 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4368 [pid 4368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4367] <... ftruncate resumed>) = 0 [pid 4363] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4365, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4368] <... prctl resumed>) = 0 [pid 4367] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4363] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4366] <... mount resumed>) = -1 EIO (Input/output error) [pid 4366] exit_group(0) = ? [pid 4366] +++ exited with 0 +++ [pid 4368] setpgid(0, 0 [pid 4367] <... openat resumed>) = 4 [pid 4363] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4366, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4367] ioctl(4, LOOP_SET_FD, 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... ioctl resumed>) = 0 [pid 4367] <... ioctl resumed>) = 0 [pid 4368] <... setpgid resumed>) = 0 [pid 4367] mkdir("./file0", 0777 [pid 4363] +++ exited with 0 +++ [pid 3619] close(3 [pid 3618] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4363, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4367] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4367] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3617] <... openat resumed>) = 3 [pid 4367] pipe2([5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4369 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4367] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4369 attached [pid 4368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4367] <... write resumed>) = 21 [pid 4368] <... openat resumed>) = 3 [pid 4367] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4368] write(3, "1000", 4) = 4 [pid 4368] close(3) = 0 [pid 4368] memfd_create("syzkaller", 0) = 3 [pid 4368] ftruncate(3, 0) = 0 [pid 4368] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4368] ioctl(4, LOOP_SET_FD, 3 [pid 4369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4368] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4368] mkdir("./file0", 0777 [pid 3618] close(3 [pid 4368] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 [pid 4368] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4368] pipe2( [pid 4369] <... prctl resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4368] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4368] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4369] setpgid(0, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4370 [pid 4368] <... write resumed>) = 21 [pid 4369] <... setpgid resumed>) = 0 [pid 4368] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4369] write(3, "1000", 4./strace-static-x86_64: Process 4370 attached [pid 4370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4370] setpgid(0, 0) = 0 [pid 4370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4370] write(3, "1000", 4) = 4 [pid 4370] close(3) = 0 [pid 4370] memfd_create("syzkaller", 0 [pid 4369] <... write resumed>) = 4 [pid 4369] close(3 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4369] <... close resumed>) = 0 [pid 3617] close(3 [pid 3615] close(3 [pid 4367] <... mount resumed>) = -1 EIO (Input/output error) [pid 4370] <... memfd_create resumed>) = 3 [pid 4370] ftruncate(3, 0) = 0 [pid 4370] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4370] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4370] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4370] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4370] pipe2([5, 6], 0) = 0 [pid 4370] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4370] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4369] memfd_create("syzkaller", 0 [pid 4367] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4369] <... memfd_create resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4369] ftruncate(3, 0) = 0 [pid 4367] <... exit_group resumed>) = ? [pid 4369] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4371 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4372 [pid 4369] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4372 attached [pid 4369] ioctl(4, LOOP_SET_FD, 3 [pid 4368] <... mount resumed>) = -1 EIO (Input/output error) [pid 4367] +++ exited with 0 +++ ./strace-static-x86_64: Process 4371 attached [pid 4371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4371] setpgid(0, 0) = 0 [pid 4371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4371] write(3, "1000", 4 [pid 4369] <... ioctl resumed>) = 0 [pid 4369] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4367, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4371] <... write resumed>) = 4 [pid 4369] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4371] close(3) = 0 [pid 4371] memfd_create("syzkaller", 0) = 3 [pid 4371] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4372] <... prctl resumed>) = 0 [pid 4369] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4369] pipe2( [pid 4371] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4371] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4369] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4372] setpgid(0, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4371] <... openat resumed>) = 4 [pid 4372] <... setpgid resumed>) = 0 [pid 4369] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4371] ioctl(4, LOOP_SET_FD, 3 [pid 4369] <... write resumed>) = 21 [pid 4372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4371] <... ioctl resumed>) = 0 [pid 4369] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4371] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4371] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4371] pipe2([5, 6], 0) = 0 [pid 4371] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4372] <... openat resumed>) = 3 [pid 4371] <... write resumed>) = 21 [pid 4371] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4372] write(3, "1000", 4 [pid 4368] exit_group(0 [pid 4372] <... write resumed>) = 4 [pid 4372] close(3 [pid 4368] <... exit_group resumed>) = ? [pid 4372] <... close resumed>) = 0 [pid 4372] memfd_create("syzkaller", 0 [pid 4368] +++ exited with 0 +++ [pid 4372] <... memfd_create resumed>) = 3 [pid 4372] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4368, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4372] <... ftruncate resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4372] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4370] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4372] mkdir("./file0", 0777 [pid 4370] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] close(3 [pid 4372] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4370] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4372] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4370] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4370, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4372] pipe2([5, 6], 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4373 [pid 4372] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4373 attached [pid 4373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4373] setpgid(0, 0) = 0 [pid 4373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4371] <... mount resumed>) = -1 EIO (Input/output error) [pid 4371] exit_group(0) = ? [pid 4372] <... write resumed>) = 21 [pid 4371] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4373] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4371, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4373] write(3, "1000", 4 [pid 4372] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4373] <... write resumed>) = 4 [pid 4373] close(3) = 0 [pid 4373] memfd_create("syzkaller", 0) = 3 [pid 4373] ftruncate(3, 0) = 0 [pid 4373] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4373] ioctl(4, LOOP_SET_FD, 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4373] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4373] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4373] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4373] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] close(3 [pid 3618] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4374 [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4373] pipe2([5, 6], 0) = 0 [pid 4373] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4375 [pid 4373] <... write resumed>) = 21 [pid 4373] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4376 ./strace-static-x86_64: Process 4375 attached ./strace-static-x86_64: Process 4374 attached [pid 4375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4374] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4376 attached [pid 4375] <... prctl resumed>) = 0 [pid 4374] <... prctl resumed>) = 0 [pid 4374] setpgid(0, 0) = 0 [pid 4375] setpgid(0, 0 [pid 4374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4375] <... setpgid resumed>) = 0 [pid 4375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4375] <... openat resumed>) = 3 [pid 4374] <... openat resumed>) = 3 [pid 4375] write(3, "1000", 4 [pid 4374] write(3, "1000", 4 [pid 4376] <... prctl resumed>) = 0 [pid 4375] <... write resumed>) = 4 [pid 4376] setpgid(0, 0 [pid 4375] close(3 [pid 4374] <... write resumed>) = 4 [pid 4375] <... close resumed>) = 0 [pid 4375] memfd_create("syzkaller", 0) = 3 [pid 4375] ftruncate(3, 0) = 0 [pid 4375] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4376] <... setpgid resumed>) = 0 [pid 4375] ioctl(4, LOOP_SET_FD, 3 [pid 4374] close(3 [pid 4375] <... ioctl resumed>) = 0 [pid 4375] mkdir("./file0", 0777 [pid 4374] <... close resumed>) = 0 [pid 4376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4375] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4376] <... openat resumed>) = 3 [pid 4375] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4374] memfd_create("syzkaller", 0 [pid 4375] pipe2( [pid 4376] write(3, "1000", 4 [pid 4375] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4374] <... memfd_create resumed>) = 3 [pid 4375] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4376] <... write resumed>) = 4 [pid 4375] <... write resumed>) = 21 [pid 4374] ftruncate(3, 0 [pid 4376] close(3 [pid 4375] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4374] <... ftruncate resumed>) = 0 [pid 4369] <... mount resumed>) = -1 EIO (Input/output error) [pid 4376] <... close resumed>) = 0 [pid 4374] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4369] exit_group(0 [pid 4376] memfd_create("syzkaller", 0 [pid 4374] <... openat resumed>) = 4 [pid 4369] <... exit_group resumed>) = ? [pid 4376] <... memfd_create resumed>) = 3 [pid 4374] ioctl(4, LOOP_SET_FD, 3 [pid 4369] +++ exited with 0 +++ [pid 4376] ftruncate(3, 0 [pid 4374] <... ioctl resumed>) = 0 [pid 4376] <... ftruncate resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4369, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4374] mkdir("./file0", 0777 [pid 4376] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4374] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4376] <... openat resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4376] ioctl(4, LOOP_SET_FD, 3 [pid 4374] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... openat resumed>) = 3 [pid 4376] <... ioctl resumed>) = 0 [pid 4374] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4376] mkdir("./file0", 0777 [pid 4374] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4376] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4374] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4376] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4374] <... write resumed>) = 21 [pid 4376] pipe2( [pid 4374] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4376] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4376] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4373] <... mount resumed>) = -1 EIO (Input/output error) [pid 4376] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4373] exit_group(0) = ? [pid 4373] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4373, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] close(3) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] close(3) = 0 ./strace-static-x86_64: Process 4377 attached [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4377 [pid 4377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4378 [pid 4377] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4378 attached [pid 4377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4377] write(3, "1000", 4 [pid 4378] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4372] <... mount resumed>) = -1 EIO (Input/output error) [pid 4378] <... prctl resumed>) = 0 [pid 4377] <... write resumed>) = 4 [pid 4372] exit_group(0 [pid 4378] setpgid(0, 0 [pid 4377] close(3 [pid 4372] <... exit_group resumed>) = ? [pid 4378] <... setpgid resumed>) = 0 [pid 4377] <... close resumed>) = 0 [pid 4372] +++ exited with 0 +++ [pid 4378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4377] memfd_create("syzkaller", 0 [pid 4378] <... openat resumed>) = 3 [pid 4377] <... memfd_create resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4372, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4378] write(3, "1000", 4 [pid 4377] ftruncate(3, 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4378] <... write resumed>) = 4 [pid 4377] <... ftruncate resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4378] close(3 [pid 4377] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4378] <... close resumed>) = 0 [pid 4377] <... openat resumed>) = 4 [pid 4378] memfd_create("syzkaller", 0 [pid 4377] ioctl(4, LOOP_SET_FD, 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4378] <... memfd_create resumed>) = 3 [pid 4377] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4378] ftruncate(3, 0 [pid 4377] mkdir("./file0", 0777 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4378] <... ftruncate resumed>) = 0 [pid 4377] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... ioctl resumed>) = 0 [pid 4378] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4377] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] close(3 [pid 4378] <... openat resumed>) = 4 [pid 4377] pipe2( [pid 3615] <... close resumed>) = 0 [pid 4378] ioctl(4, LOOP_SET_FD, 3 [pid 4377] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4378] <... ioctl resumed>) = 0 [pid 4377] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4378] mkdir("./file0", 0777 [pid 4377] <... write resumed>) = 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4379 [pid 4378] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4377] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4378] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4378] pipe2([5, 6], 0) = 0 [pid 4378] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4378] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4379 attached [pid 4379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4379] setpgid(0, 0) = 0 [pid 4376] <... mount resumed>) = -1 EIO (Input/output error) [pid 4379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4379] write(3, "1000", 4 [pid 4376] exit_group(0 [pid 4379] <... write resumed>) = 4 [pid 4376] <... exit_group resumed>) = ? [pid 4379] close(3) = 0 [pid 4379] memfd_create("syzkaller", 0 [pid 4376] +++ exited with 0 +++ [pid 4379] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4376, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4379] ftruncate(3, 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4379] <... ftruncate resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4379] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4379] ioctl(4, LOOP_SET_FD, 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4379] <... ioctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4379] mkdir("./file0", 0777 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4379] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... ioctl resumed>) = 0 [pid 4379] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] close(3 [pid 4379] pipe2( [pid 3618] <... close resumed>) = 0 [pid 4379] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4379] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4380 [pid 4379] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4380 attached [pid 4380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4380] setpgid(0, 0) = 0 [pid 4380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4380] write(3, "1000", 4) = 4 [pid 4380] close(3) = 0 [pid 4380] memfd_create("syzkaller", 0) = 3 [pid 4380] ftruncate(3, 0) = 0 [pid 4380] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4380] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4380] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4380] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4380] pipe2([5, 6], 0) = 0 [pid 4380] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4380] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4375] <... mount resumed>) = -1 EIO (Input/output error) [pid 4374] <... mount resumed>) = -1 EIO (Input/output error) [pid 4375] exit_group(0 [pid 4374] exit_group(0 [pid 4375] <... exit_group resumed>) = ? [pid 4374] <... exit_group resumed>) = ? [pid 4375] +++ exited with 0 +++ [pid 4374] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4375, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4374, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... restart_syscall resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4379] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4379] exit_group(0) = ? [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4379] +++ exited with 0 +++ [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4379, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 4378] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4378] exit_group(0) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4381 [pid 4378] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4378, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4381 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... openat resumed>) = 3 [pid 4381] <... prctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4381] setpgid(0, 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4381] <... setpgid resumed>) = 0 [pid 3619] close(3 [pid 4381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4381] <... openat resumed>) = 3 [pid 3620] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4381] write(3, "1000", 4 [pid 3620] <... close resumed>) = 0 [pid 4381] <... write resumed>) = 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4382 [pid 3617] <... ioctl resumed>) = 0 [pid 4381] close(3 [pid 3617] close(3 [pid 4381] <... close resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4383 [pid 3617] <... close resumed>) = 0 [pid 4381] memfd_create("syzkaller", 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4382 attached [pid 4381] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 4384 attached ./strace-static-x86_64: Process 4383 attached [pid 4382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4381] ftruncate(3, 0 [pid 4377] <... mount resumed>) = -1 EIO (Input/output error) [pid 4384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4382] <... prctl resumed>) = 0 [pid 4381] <... ftruncate resumed>) = 0 [pid 4377] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4384 [pid 4382] setpgid(0, 0 [pid 4381] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4377] <... exit_group resumed>) = ? [pid 4384] <... prctl resumed>) = 0 [pid 4382] <... setpgid resumed>) = 0 [pid 4381] <... openat resumed>) = 4 [pid 4377] +++ exited with 0 +++ [pid 4382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4381] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4377, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4383] <... prctl resumed>) = 0 [pid 4382] <... openat resumed>) = 3 [pid 4382] write(3, "1000", 4) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4382] close(3 [pid 3616] <... openat resumed>) = 3 [pid 4384] setpgid(0, 0 [pid 4383] setpgid(0, 0 [pid 4382] <... close resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4384] <... setpgid resumed>) = 0 [pid 4383] <... setpgid resumed>) = 0 [pid 4382] memfd_create("syzkaller", 0 [pid 4380] <... mount resumed>) = -1 EIO (Input/output error) [pid 4384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4382] <... memfd_create resumed>) = 3 [pid 4380] exit_group(0 [pid 4382] ftruncate(3, 0 [pid 4380] <... exit_group resumed>) = ? [pid 4384] <... openat resumed>) = 3 [pid 4383] <... openat resumed>) = 3 [pid 4382] <... ftruncate resumed>) = 0 [pid 4380] +++ exited with 0 +++ [pid 4384] write(3, "1000", 4 [pid 4383] write(3, "1000", 4 [pid 4382] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4380, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4384] <... write resumed>) = 4 [pid 4383] <... write resumed>) = 4 [pid 4384] close(3 [pid 4383] close(3 [pid 4384] <... close resumed>) = 0 [pid 4383] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4384] memfd_create("syzkaller", 0 [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4383] memfd_create("syzkaller", 0 [pid 4384] <... memfd_create resumed>) = 3 [pid 4384] ftruncate(3, 0 [pid 4383] <... memfd_create resumed>) = 3 [pid 4384] <... ftruncate resumed>) = 0 [pid 4383] ftruncate(3, 0 [pid 4384] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4383] <... ftruncate resumed>) = 0 [pid 4384] <... openat resumed>) = 4 [pid 4383] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4384] ioctl(4, LOOP_SET_FD, 3 [pid 4383] <... openat resumed>) = 4 [pid 4381] <... ioctl resumed>) = 0 [pid 4382] <... openat resumed>) = 4 [pid 4381] mkdir("./file0", 0777 [pid 4384] <... ioctl resumed>) = 0 [pid 4383] ioctl(4, LOOP_SET_FD, 3 [pid 4382] ioctl(4, LOOP_SET_FD, 3 [pid 4381] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4384] mkdir("./file0", 0777 [pid 4383] <... ioctl resumed>) = 0 [pid 4382] <... ioctl resumed>) = 0 [pid 4381] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4384] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4383] mkdir("./file0", 0777 [pid 4382] mkdir("./file0", 0777 [pid 4381] pipe2( [pid 4384] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4383] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4382] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4381] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4384] pipe2( [pid 4383] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4382] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4381] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4384] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4383] pipe2( [pid 4382] pipe2( [pid 4381] <... write resumed>) = 21 [pid 4384] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4383] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4382] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4381] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4384] <... write resumed>) = 21 [pid 4383] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4382] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4384] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4383] <... write resumed>) = 21 [pid 4382] <... write resumed>) = 21 [pid 4382] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4383] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] close(3 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4385 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4386 [pid 4381] <... mount resumed>) = -1 EIO (Input/output error) [pid 4381] exit_group(0) = ? [pid 4381] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4381, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4386 attached [pid 4386] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4386] <... prctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4386] setpgid(0, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4386] <... setpgid resumed>) = 0 [pid 4386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4386] write(3, "1000", 4) = 4 [pid 4386] close(3) = 0 [pid 4386] memfd_create("syzkaller", 0) = 3 [pid 4386] ftruncate(3, 0) = 0 [pid 4386] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4386] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4386] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4386] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4386] pipe2([5, 6], 0) = 0 [pid 4386] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4386] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4385 attached [pid 4385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4385] setpgid(0, 0) = 0 [pid 4385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4385] write(3, "1000", 4) = 4 [pid 4385] close(3) = 0 [pid 4385] memfd_create("syzkaller", 0) = 3 [pid 4385] ftruncate(3, 0) = 0 [pid 4385] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4383] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4385] ioctl(4, LOOP_SET_FD, 3 [pid 3615] close(3 [pid 4385] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4385] mkdir("./file0", 0777 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4385] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4385] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4387 [pid 4385] pipe2([5, 6], 0) = 0 [pid 4385] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4385] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4383] exit_group(0) = ? [pid 4383] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4383, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4387 attached ) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4387] setpgid(0, 0) = 0 [pid 4384] <... mount resumed>) = -1 EIO (Input/output error) [pid 4387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4384] exit_group(0 [pid 4387] <... openat resumed>) = 3 [pid 4384] <... exit_group resumed>) = ? [pid 4387] write(3, "1000", 4 [pid 4384] +++ exited with 0 +++ [pid 4387] <... write resumed>) = 4 [pid 4387] close(3) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4384, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4387] memfd_create("syzkaller", 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4387] <... memfd_create resumed>) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4387] ftruncate(3, 0) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4387] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] close(3 [pid 4387] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4387] ioctl(4, LOOP_SET_FD, 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 4387] <... ioctl resumed>) = 0 [pid 4382] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4387] mkdir("./file0", 0777 [pid 4382] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4388 [pid 4387] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4382] <... exit_group resumed>) = ? [pid 4387] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4388 attached [pid 4387] pipe2( [pid 4382] +++ exited with 0 +++ [pid 4388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4387] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4382, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4388] <... prctl resumed>) = 0 [pid 4387] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4388] setpgid(0, 0 [pid 4387] <... write resumed>) = 21 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4388] <... setpgid resumed>) = 0 [pid 4387] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4388] write(3, "1000", 4 [pid 3619] <... openat resumed>) = 3 [pid 4388] <... write resumed>) = 4 [pid 4385] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4388] close(3 [pid 4385] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4388] <... close resumed>) = 0 [pid 4385] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4388] memfd_create("syzkaller", 0 [pid 4385] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 4388] <... memfd_create resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4388] ftruncate(3, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4385, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4388] <... ftruncate resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4389 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... ioctl resumed>) = 0 [pid 4388] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] close(3 [pid 4388] <... openat resumed>) = 4 [pid 4386] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... close resumed>) = 0 [pid 4388] ioctl(4, LOOP_SET_FD, 3 [pid 4386] exit_group(0./strace-static-x86_64: Process 4389 attached [pid 4388] <... ioctl resumed>) = 0 [pid 4386] <... exit_group resumed>) = ? [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4389] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4388] mkdir("./file0", 0777 [pid 4386] +++ exited with 0 +++ [pid 3618] <... openat resumed>) = 3 [pid 4389] <... prctl resumed>) = 0 [pid 4388] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4386, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4389] setpgid(0, 0 [pid 4388] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4389] <... setpgid resumed>) = 0 [pid 4388] pipe2( [pid 3616] <... restart_syscall resumed>) = 0 [pid 4389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4388] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4389] <... openat resumed>) = 3 [pid 4388] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4389] write(3, "1000", 4 [pid 4388] <... write resumed>) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4389] <... write resumed>) = 4 [pid 4388] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4389] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4389] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4389] memfd_create("syzkaller", 0 [pid 3616] close(3 [pid 4389] <... memfd_create resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4389] ftruncate(3, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4389] <... ftruncate resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4389] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4390 [pid 4389] <... openat resumed>) = 4 [pid 4389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4389] ioctl(4, LOOP_CLR_FD) = 0 [pid 4389] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4391 ./strace-static-x86_64: Process 4390 attached [pid 4389] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 4390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4389] close(4 [pid 4390] <... prctl resumed>) = 0 [pid 4389] <... close resumed>) = 0 [pid 4390] setpgid(0, 0 [pid 4389] close(3 [pid 4390] <... setpgid resumed>) = 0 [pid 4389] <... close resumed>) = 0 [pid 4390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4389] pipe2(./strace-static-x86_64: Process 4391 attached [pid 4390] <... openat resumed>) = 3 [pid 4389] <... pipe2 resumed>[3, 4], 0) = 0 [pid 4391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4390] write(3, "1000", 4 [pid 4389] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4391] <... prctl resumed>) = 0 [pid 4390] <... write resumed>) = 4 [pid 4389] <... write resumed>) = 21 [pid 4391] setpgid(0, 0 [pid 4390] close(3 [pid 4389] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 4391] <... setpgid resumed>) = 0 [pid 4390] <... close resumed>) = 0 [pid 4391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4390] memfd_create("syzkaller", 0 [pid 4391] <... openat resumed>) = 3 [pid 4390] <... memfd_create resumed>) = 3 [pid 4391] write(3, "1000", 4 [pid 4390] ftruncate(3, 0 [pid 4391] <... write resumed>) = 4 [pid 4390] <... ftruncate resumed>) = 0 [pid 4391] close(3 [pid 4390] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4391] <... close resumed>) = 0 [pid 4390] <... openat resumed>) = 4 [pid 4391] memfd_create("syzkaller", 0 [pid 4390] ioctl(4, LOOP_SET_FD, 3 [pid 4391] <... memfd_create resumed>) = 3 [pid 4390] <... ioctl resumed>) = 0 [pid 4391] ftruncate(3, 0 [pid 4390] mkdir("./file0", 0777 [pid 4391] <... ftruncate resumed>) = 0 [pid 4390] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4391] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4390] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4391] <... openat resumed>) = 4 [pid 4390] pipe2( [pid 4391] ioctl(4, LOOP_SET_FD, 3 [pid 4390] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4391] <... ioctl resumed>) = 0 [pid 4390] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... ioctl resumed>) = 0 [pid 4391] mkdir("./file0", 0777 [pid 4390] <... write resumed>) = 21 [pid 3618] close(3 [pid 4390] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4391] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4392 ./strace-static-x86_64: Process 4392 attached [pid 4392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4391] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4387] <... mount resumed>) = -1 EIO (Input/output error) [pid 4392] <... prctl resumed>) = 0 [pid 4392] setpgid(0, 0) = 0 [pid 4392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4391] pipe2( [pid 4387] exit_group(0 [pid 4392] <... openat resumed>) = 3 [pid 4391] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4387] <... exit_group resumed>) = ? [pid 4392] write(3, "1000", 4 [pid 4391] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4392] <... write resumed>) = 4 [pid 4391] <... write resumed>) = 21 [pid 4387] +++ exited with 0 +++ [pid 4392] close(3 [pid 4391] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4387, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4392] <... close resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4392] memfd_create("syzkaller", 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4392] <... memfd_create resumed>) = 3 [pid 4392] ftruncate(3, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4392] <... ftruncate resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4392] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4390] <... mount resumed>) = -1 EIO (Input/output error) [pid 4392] <... openat resumed>) = 4 [pid 4390] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4393 ./strace-static-x86_64: Process 4393 attached [pid 4392] ioctl(4, LOOP_SET_FD, 3 [pid 4390] <... exit_group resumed>) = ? [pid 4393] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4392] <... ioctl resumed>) = 0 [pid 4390] +++ exited with 0 +++ [pid 4393] <... prctl resumed>) = 0 [pid 4392] mkdir("./file0", 0777 [pid 4393] setpgid(0, 0 [pid 4392] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4390, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4393] <... setpgid resumed>) = 0 [pid 4392] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4392] pipe2( [pid 3616] <... restart_syscall resumed>) = 0 [pid 4393] <... openat resumed>) = 3 [pid 4392] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4393] write(3, "1000", 4 [pid 4392] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4389] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4392] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4389] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 4389] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4389] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 4393] <... write resumed>) = 4 [pid 3616] close(3 [pid 4393] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4389, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... close resumed>) = 0 [pid 4393] <... close resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4393] memfd_create("syzkaller", 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4393] <... memfd_create resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4394 [pid 4393] ftruncate(3, 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4393] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 4393] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4393] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4393] <... ioctl resumed>) = 0 [pid 3619] close(3./strace-static-x86_64: Process 4394 attached [pid 4393] mkdir("./file0", 0777 [pid 3619] <... close resumed>) = 0 [pid 4394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4393] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4394] <... prctl resumed>) = 0 [pid 4394] setpgid(0, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4395 [pid 4394] <... setpgid resumed>) = 0 [pid 4394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4394] write(3, "1000", 4) = 4 [pid 4394] close(3) = 0 [pid 4394] memfd_create("syzkaller", 0) = 3 [pid 4394] ftruncate(3, 0) = 0 [pid 4394] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4394] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4393] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4394] mkdir("./file0", 0777 [pid 4393] pipe2( [pid 4394] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4393] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4394] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4393] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4388] <... mount resumed>) = -1 EIO (Input/output error) [pid 4394] pipe2( [pid 4393] <... write resumed>) = 21 ./strace-static-x86_64: Process 4395 attached [pid 4394] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4393] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4388] exit_group(0 [pid 4395] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4394] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4388] <... exit_group resumed>) = ? [pid 4394] <... write resumed>) = 21 [pid 4394] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4388] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4388, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4395] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4395] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4395] <... setpgid resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 4395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4391] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 4395] write(3, "1000", 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4395] <... write resumed>) = 4 [pid 4391] exit_group(0 [pid 4395] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4396 [pid 4395] <... close resumed>) = 0 [pid 4391] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4396 attached [pid 4395] memfd_create("syzkaller", 0) = 3 [pid 4396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4395] ftruncate(3, 0 [pid 4396] <... prctl resumed>) = 0 [pid 4395] <... ftruncate resumed>) = 0 [pid 4396] setpgid(0, 0 [pid 4395] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4396] <... setpgid resumed>) = 0 [pid 4396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4395] <... openat resumed>) = 4 [pid 4396] write(3, "1000", 4 [pid 4395] ioctl(4, LOOP_SET_FD, 3 [pid 4396] <... write resumed>) = 4 [pid 4396] close(3) = 0 [pid 4396] memfd_create("syzkaller", 0 [pid 4391] +++ exited with 0 +++ [pid 4396] <... memfd_create resumed>) = 3 [pid 4396] ftruncate(3, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4391, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4396] <... ftruncate resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4396] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... restart_syscall resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = 0 [pid 4396] <... openat resumed>) = 4 [pid 4395] <... ioctl resumed>) = 0 [pid 4392] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] close(3 [pid 4396] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3617] <... close resumed>) = 0 [pid 4396] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4395] mkdir("./file0", 0777 [pid 4392] exit_group(0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4396] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4396] pipe2( [pid 4395] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4392] <... exit_group resumed>) = ? [pid 4396] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4396] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4396] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4395] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4392] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4397 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4392, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4395] pipe2( [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4395] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4395] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4395] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4397 attached [pid 4394] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4394] exit_group(0 [pid 3618] close(3 [pid 4397] <... prctl resumed>) = 0 [pid 4394] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4397] setpgid(0, 0 [pid 4394] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4397] <... setpgid resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4394, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4398 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4397] <... openat resumed>) = 3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4397] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 4398 attached [pid 4397] close(3 [pid 4393] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4397] <... close resumed>) = 0 [pid 4393] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 4398] <... prctl resumed>) = 0 [pid 4397] memfd_create("syzkaller", 0 [pid 4393] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4398] setpgid(0, 0 [pid 4397] <... memfd_create resumed>) = 3 [pid 4393] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 4398] <... setpgid resumed>) = 0 [pid 4397] ftruncate(3, 0 [pid 3616] close(3 [pid 4398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4397] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4393, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4398] <... openat resumed>) = 3 [pid 4395] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4398] write(3, "1000", 4 [pid 4397] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4395] exit_group(0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4398] <... write resumed>) = 4 [pid 4397] <... openat resumed>) = 4 [pid 4395] <... exit_group resumed>) = ? [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4399 [pid 4398] close(3 [pid 4397] ioctl(4, LOOP_SET_FD, 3 [pid 4395] +++ exited with 0 +++ [pid 4398] <... close resumed>) = 0 [pid 4397] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4395, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4399 attached [pid 4398] memfd_create("syzkaller", 0 [pid 4397] mkdir("./file0", 0777 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... openat resumed>) = 3 [pid 4398] <... memfd_create resumed>) = 3 [pid 4397] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... restart_syscall resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4399] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4398] ftruncate(3, 0 [pid 4397] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4399] <... prctl resumed>) = 0 [pid 4398] <... ftruncate resumed>) = 0 [pid 4397] pipe2( [pid 4399] setpgid(0, 0 [pid 4398] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4397] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4399] <... setpgid resumed>) = 0 [pid 4398] <... openat resumed>) = 4 [pid 4397] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... openat resumed>) = 3 [pid 4399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4398] ioctl(4, LOOP_SET_FD, 3 [pid 4397] <... write resumed>) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4399] <... openat resumed>) = 3 [pid 4398] <... ioctl resumed>) = 0 [pid 4397] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4399] write(3, "1000", 4 [pid 4398] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4399] <... write resumed>) = 4 [pid 4398] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4399] close(3 [pid 4398] pipe2( [pid 4399] <... close resumed>) = 0 [pid 4398] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4398] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4399] memfd_create("syzkaller", 0 [pid 4398] <... write resumed>) = 21 [pid 4399] <... memfd_create resumed>) = 3 [pid 4398] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4399] ftruncate(3, 0) = 0 [pid 4399] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4399] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4396] <... mount resumed>) = -1 EIO (Input/output error) [pid 4399] mkdir("./file0", 0777 [pid 4396] exit_group(0 [pid 4399] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4396] <... exit_group resumed>) = ? [pid 4399] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4396] +++ exited with 0 +++ [pid 4399] pipe2([5, 6], 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4396, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4399] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4399] <... write resumed>) = 21 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4399] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3615] close(3 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4400 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4401 ./strace-static-x86_64: Process 4400 attached [pid 4400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4400] setpgid(0, 0) = 0 [pid 4400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4400] write(3, "1000", 4) = 4 [pid 4400] close(3) = 0 [pid 4400] memfd_create("syzkaller", 0) = 3 [pid 4400] ftruncate(3, 0) = 0 [pid 4400] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4400] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4400] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4401 attached [pid 4400] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4400] pipe2([5, 6], 0) = 0 [pid 4401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4400] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4401] <... prctl resumed>) = 0 [pid 4400] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4401] setpgid(0, 0) = 0 [pid 4401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4401] write(3, "1000", 4) = 4 [pid 4401] close(3) = 0 [pid 4401] memfd_create("syzkaller", 0) = 3 [pid 4401] ftruncate(3, 0) = 0 [pid 4401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4401] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4401] mkdir("./file0", 0777 [pid 3620] <... ioctl resumed>) = 0 [pid 4401] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] close(3 [pid 4401] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4401] pipe2( [pid 3620] <... close resumed>) = 0 [pid 4401] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4401] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4402 [pid 4401] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4397] <... mount resumed>) = -1 EIO (Input/output error) [pid 4397] exit_group(0) = ? [pid 4397] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4397, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 ./strace-static-x86_64: Process 4402 attached [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4398] <... mount resumed>) = -1 EIO (Input/output error) [pid 4398] exit_group(0) = ? [pid 4398] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4398, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4402] setpgid(0, 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4402] <... openat resumed>) = 3 [pid 3618] <... ioctl resumed>) = 0 [pid 4402] write(3, "1000", 4 [pid 3618] close(3 [pid 4402] <... write resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4402] close(3) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4403 [pid 4402] memfd_create("syzkaller", 0) = 3 [pid 4402] ftruncate(3, 0) = 0 [pid 4402] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4402] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4402] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4402] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4402] pipe2([5, 6], 0) = 0 [pid 4402] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4402] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4403 attached [pid 4403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4403] setpgid(0, 0) = 0 [pid 4403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4403] write(3, "1000", 4) = 4 [pid 4403] close(3) = 0 [pid 4403] memfd_create("syzkaller", 0) = 3 [pid 4403] ftruncate(3, 0) = 0 [pid 4403] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4403] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4403] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4403] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4403] pipe2([5, 6], 0) = 0 [pid 4403] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4403] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4404 attached , child_tidptr=0x5555570a1690) = 4404 [pid 4404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4404] setpgid(0, 0) = 0 [pid 4404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4404] write(3, "1000", 4) = 4 [pid 4404] close(3) = 0 [pid 4404] memfd_create("syzkaller", 0) = 3 [pid 4404] ftruncate(3, 0) = 0 [pid 4404] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4404] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4404] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4404] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4404] pipe2( [pid 4401] <... mount resumed>) = -1 EIO (Input/output error) [pid 4404] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4401] exit_group(0 [pid 4404] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4401] <... exit_group resumed>) = ? [pid 4404] <... write resumed>) = 21 [pid 4404] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4401] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4401, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4399] <... mount resumed>) = -1 EIO (Input/output error) [pid 4399] exit_group(0) = ? [pid 4399] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4399, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... close resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4405 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4405 attached [pid 4405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4405] setpgid(0, 0) = 0 [pid 4400] <... mount resumed>) = -1 EIO (Input/output error) [pid 4405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4400] exit_group(0 [pid 4405] <... openat resumed>) = 3 [pid 4405] write(3, "1000", 4) = 4 [pid 4400] <... exit_group resumed>) = ? [pid 4405] close(3) = 0 [pid 4405] memfd_create("syzkaller", 0) = 3 [pid 4400] +++ exited with 0 +++ [pid 4405] ftruncate(3, 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4400, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4405] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4405] <... openat resumed>) = 4 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4405] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4405] mkdir("./file0", 0777 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4405] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... openat resumed>) = 3 [pid 4405] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4405] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 4405] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 4405] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 4405] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4405] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4406 ./strace-static-x86_64: Process 4406 attached [pid 4406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4406] setpgid(0, 0) = 0 [pid 4406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4406] write(3, "1000", 4) = 4 [pid 4406] close(3) = 0 [pid 4406] memfd_create("syzkaller", 0) = 3 [pid 4406] ftruncate(3, 0) = 0 [pid 4406] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4406] ioctl(4, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4407 ./strace-static-x86_64: Process 4407 attached [pid 4407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4407] setpgid(0, 0) = 0 [pid 4407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4407] write(3, "1000", 4) = 4 [pid 4407] close(3) = 0 [pid 4407] memfd_create("syzkaller", 0 [pid 4406] <... ioctl resumed>) = 0 [pid 4407] <... memfd_create resumed>) = 3 [pid 4407] ftruncate(3, 0) = 0 [pid 4407] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4406] ioctl(4, LOOP_SET_FD, 3 [pid 4407] ioctl(4, LOOP_SET_FD, 3 [pid 4406] <... ioctl resumed>) = 0 [pid 4407] <... ioctl resumed>) = 0 [pid 4406] mkdir("./file0", 0777 [pid 4407] mkdir("./file0", 0777 [pid 4406] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4407] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4406] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4407] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4406] pipe2( [pid 4402] <... mount resumed>) = -1 EIO (Input/output error) [pid 4407] pipe2( [pid 4406] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4402] exit_group(0 [pid 4407] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4406] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4402] <... exit_group resumed>) = ? [pid 4407] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4406] <... write resumed>) = 21 [pid 4407] <... write resumed>) = 21 [pid 4406] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4402] +++ exited with 0 +++ [pid 4407] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4402, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4403] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4403] exit_group(0 [pid 3620] close(3 [pid 4403] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4408 [pid 4403] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4403, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4408 attached ) = 3 [pid 4408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4408] <... prctl resumed>) = 0 [pid 4408] setpgid(0, 0) = 0 [pid 4408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4408] write(3, "1000", 4) = 4 [pid 4408] close(3) = 0 [pid 4408] memfd_create("syzkaller", 0) = 3 [pid 4408] ftruncate(3, 0) = 0 [pid 4408] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4408] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4408] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4408] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4408] pipe2( [pid 4404] <... mount resumed>) = -1 EIO (Input/output error) [pid 4408] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4404] exit_group(0 [pid 4408] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4404] <... exit_group resumed>) = ? [pid 4408] <... write resumed>) = 21 [pid 4404] +++ exited with 0 +++ [pid 4408] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4404, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4409 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4405] <... mount resumed>) = -1 EIO (Input/output error) [pid 4405] exit_group(0) = ? [pid 4405] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4405, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4409 attached ) = 0 [pid 4409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4409] setpgid(0, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4409] <... setpgid resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4409] <... openat resumed>) = 3 [pid 4409] write(3, "1000", 4) = 4 [pid 4409] close(3) = 0 [pid 4409] memfd_create("syzkaller", 0) = 3 [pid 4409] ftruncate(3, 0) = 0 [pid 4409] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4409] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4409] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4409] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4409] pipe2([5, 6], 0) = 0 [pid 4409] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4409] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4410 ./strace-static-x86_64: Process 4410 attached [pid 4410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4410] setpgid(0, 0) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4411 ./strace-static-x86_64: Process 4411 attached [pid 4410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4410] write(3, "1000", 4) = 4 [pid 4410] close(3) = 0 [pid 4410] memfd_create("syzkaller", 0) = 3 [pid 4410] ftruncate(3, 0) = 0 [pid 4411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4410] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4410] ioctl(4, LOOP_SET_FD, 3 [pid 4411] <... prctl resumed>) = 0 [pid 4410] <... ioctl resumed>) = 0 [pid 4411] setpgid(0, 0 [pid 4410] mkdir("./file0", 0777 [pid 4411] <... setpgid resumed>) = 0 [pid 4410] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4410] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4410] pipe2( [pid 4411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4410] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4411] <... openat resumed>) = 3 [pid 4410] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4411] write(3, "1000", 4 [pid 4410] <... write resumed>) = 21 [pid 4411] <... write resumed>) = 4 [pid 4410] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4411] close(3) = 0 [pid 4411] memfd_create("syzkaller", 0) = 3 [pid 4411] ftruncate(3, 0) = 0 [pid 4411] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4411] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4406] <... mount resumed>) = -1 EIO (Input/output error) [pid 4411] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4411] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4411] pipe2([5, 6], 0) = 0 [pid 4411] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4411] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4406] exit_group(0) = ? [pid 4406] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4406, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4412 [pid 4407] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4412 attached [pid 4412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4412] setpgid(0, 0) = 0 [pid 4412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4412] write(3, "1000", 4) = 4 [pid 4412] close(3 [pid 4407] exit_group(0) = ? [pid 4412] <... close resumed>) = 0 [pid 4412] memfd_create("syzkaller", 0) = 3 [pid 4407] +++ exited with 0 +++ [pid 4412] ftruncate(3, 0) = 0 [pid 4412] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4407, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4412] <... openat resumed>) = 4 [pid 4412] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4412] <... ioctl resumed>) = 0 [pid 4412] mkdir("./file0", 0777 [pid 3616] <... openat resumed>) = 3 [pid 4412] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4412] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4412] pipe2([5, 6], 0) = 0 [pid 4412] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4412] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4411] <... mount resumed>) = -1 EIO (Input/output error) [pid 4411] exit_group(0) = ? [pid 4411] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4411, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 4408] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 3615] <... openat resumed>) = 3 [pid 4408] exit_group(0 [pid 3616] <... close resumed>) = 0 [pid 4408] <... exit_group resumed>) = ? [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4413 ./strace-static-x86_64: Process 4413 attached [pid 4408] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4408, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4413] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 4413] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4413] setpgid(0, 0) = 0 [pid 4413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4413] write(3, "1000", 4) = 4 [pid 4413] close(3) = 0 [pid 4413] memfd_create("syzkaller", 0) = 3 [pid 4413] ftruncate(3, 0) = 0 [pid 4413] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4413] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4413] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4413] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4413] pipe2([5, 6], 0) = 0 [pid 4413] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4413] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4409] <... mount resumed>) = -1 EIO (Input/output error) [pid 4409] exit_group(0) = ? [pid 4409] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4409, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3615] close(3 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4414 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4415 ./strace-static-x86_64: Process 4415 attached [pid 4415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4415] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4414 attached [pid 4415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4410] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4415] <... openat resumed>) = 3 [pid 4415] write(3, "1000", 4) = 4 [pid 4415] close(3) = 0 [pid 4415] memfd_create("syzkaller", 0) = 3 [pid 4410] exit_group(0 [pid 3618] close(3 [pid 4415] ftruncate(3, 0 [pid 3618] <... close resumed>) = 0 [pid 4415] <... ftruncate resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4415] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4415] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4416 ./strace-static-x86_64: Process 4416 attached [pid 4415] <... ioctl resumed>) = 0 [pid 4414] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4410] <... exit_group resumed>) = ? [pid 4415] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4415] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4415] pipe2([5, 6], 0) = 0 [pid 4415] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4415] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4414] <... prctl resumed>) = 0 [pid 4410] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4410, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4414] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4414] <... openat resumed>) = 3 [pid 4414] write(3, "1000", 4) = 4 [pid 4416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4414] close(3 [pid 4416] <... prctl resumed>) = 0 [pid 4414] <... close resumed>) = 0 [pid 4413] <... mount resumed>) = -1 EIO (Input/output error) [pid 4416] setpgid(0, 0 [pid 4414] memfd_create("syzkaller", 0 [pid 4413] exit_group(0 [pid 4416] <... setpgid resumed>) = 0 [pid 4414] <... memfd_create resumed>) = 3 [pid 4413] <... exit_group resumed>) = ? [pid 3617] <... ioctl resumed>) = 0 [pid 4416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4414] ftruncate(3, 0 [pid 4413] +++ exited with 0 +++ [pid 3617] close(3 [pid 4414] <... ftruncate resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4416] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4414] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4413, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4416] write(3, "1000", 4 [pid 4414] <... openat resumed>) = 4 [pid 4416] <... write resumed>) = 4 [pid 4414] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4417 [pid 4414] <... ioctl resumed>) = 0 [pid 4416] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4414] mkdir("./file0", 0777 [pid 4416] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4414] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4417 attached [pid 4416] memfd_create("syzkaller", 0 [pid 4414] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4416] <... memfd_create resumed>) = 3 [pid 4414] pipe2( [pid 3616] <... ioctl resumed>) = 0 [pid 4416] ftruncate(3, 0 [pid 4414] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] close(3 [pid 4417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4416] <... ftruncate resumed>) = 0 [pid 4414] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... close resumed>) = 0 [pid 4417] <... prctl resumed>) = 0 [pid 4416] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4414] <... write resumed>) = 21 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4417] setpgid(0, 0 [pid 4416] <... openat resumed>) = 4 [pid 4417] <... setpgid resumed>) = 0 [pid 4417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4414] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4416] ioctl(4, LOOP_SET_FD, 3 [pid 4417] <... openat resumed>) = 3 [pid 4417] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4418 [pid 4417] <... write resumed>) = 4 [pid 4417] close(3) = 0 [pid 4417] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4418 attached [pid 4418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4417] <... memfd_create resumed>) = 3 [pid 4416] <... ioctl resumed>) = 0 [pid 4418] <... prctl resumed>) = 0 [pid 4417] ftruncate(3, 0 [pid 4416] mkdir("./file0", 0777 [pid 4418] setpgid(0, 0 [pid 4417] <... ftruncate resumed>) = 0 [pid 4416] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4412] <... mount resumed>) = -1 EIO (Input/output error) [pid 4418] <... setpgid resumed>) = 0 [pid 4417] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4416] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4412] exit_group(0 [pid 4418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4417] <... openat resumed>) = 4 [pid 4416] pipe2( [pid 4412] <... exit_group resumed>) = ? [pid 4418] <... openat resumed>) = 3 [pid 4417] ioctl(4, LOOP_SET_FD, 3 [pid 4416] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4412] +++ exited with 0 +++ [pid 4418] write(3, "1000", 4 [pid 4417] <... ioctl resumed>) = 0 [pid 4416] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4418] <... write resumed>) = 4 [pid 4417] mkdir("./file0", 0777 [pid 4416] <... write resumed>) = 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4412, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4418] close(3 [pid 4417] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4416] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4418] <... close resumed>) = 0 [pid 4417] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... openat resumed>) = 3 [pid 4418] memfd_create("syzkaller", 0 [pid 4417] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4418] <... memfd_create resumed>) = 3 [pid 4417] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4418] ftruncate(3, 0 [pid 4417] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4418] <... ftruncate resumed>) = 0 [pid 4417] <... write resumed>) = 21 [pid 4418] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4417] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4418] <... openat resumed>) = 4 [pid 4418] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4418] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4418] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4418] pipe2([5, 6], 0) = 0 [pid 4418] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4418] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4415] <... mount resumed>) = -1 EIO (Input/output error) [pid 4415] exit_group(0) = ? [pid 4415] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4415, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 4414] <... mount resumed>) = -1 EIO (Input/output error) [pid 4414] exit_group(0) = ? [pid 4414] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4414, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3619] close(3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... close resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4419 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4419 attached [pid 4419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4419] setpgid(0, 0) = 0 [pid 4419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4416] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3615] close(3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4420 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4421 ./strace-static-x86_64: Process 4420 attached [pid 4419] <... openat resumed>) = 3 [pid 4417] <... mount resumed>) = -1 EIO (Input/output error) [pid 4416] exit_group(0 [pid 4420] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4419] write(3, "1000", 4 [pid 4417] exit_group(0 [pid 4416] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4421 attached [pid 4417] <... exit_group resumed>) = ? [pid 4421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4419] <... write resumed>) = 4 [pid 4417] +++ exited with 0 +++ [pid 4416] +++ exited with 0 +++ [pid 4421] <... prctl resumed>) = 0 [pid 4419] close(3 [pid 4420] <... prctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4416, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4421] setpgid(0, 0 [pid 4419] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4417, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4421] <... setpgid resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4420] setpgid(0, 0 [pid 4419] memfd_create("syzkaller", 0 [pid 3617] <... openat resumed>) = 3 [pid 4421] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4421] write(3, "1000", 4 [pid 4420] <... setpgid resumed>) = 0 [pid 4419] <... memfd_create resumed>) = 3 [pid 4421] <... write resumed>) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4419] ftruncate(3, 0 [pid 4421] close(3 [pid 4419] <... ftruncate resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4421] <... close resumed>) = 0 [pid 4420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4419] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 4421] memfd_create("syzkaller", 0 [pid 4419] <... openat resumed>) = 4 [pid 4420] <... openat resumed>) = 3 [pid 4418] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] close(3 [pid 4421] <... memfd_create resumed>) = 3 [pid 4420] write(3, "1000", 4 [pid 4419] ioctl(4, LOOP_SET_FD, 3 [pid 4418] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 4421] ftruncate(3, 0 [pid 4420] <... write resumed>) = 4 [pid 4419] <... ioctl resumed>) = 0 [pid 4418] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4421] <... ftruncate resumed>) = 0 [pid 4420] close(3 [pid 4419] mkdir("./file0", 0777 [pid 4418] +++ exited with 0 +++ [pid 4421] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4420] <... close resumed>) = 0 [pid 4419] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4422 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4418, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4421] <... openat resumed>) = 4 [pid 4420] memfd_create("syzkaller", 0 [pid 4419] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4421] ioctl(4, LOOP_SET_FD, 3 [pid 4420] <... memfd_create resumed>) = 3 [pid 4419] pipe2( [pid 4421] <... ioctl resumed>) = 0 [pid 4420] ftruncate(3, 0 [pid 4419] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4422 attached [pid 4421] mkdir("./file0", 0777 [pid 4420] <... ftruncate resumed>) = 0 [pid 4419] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4421] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4420] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4419] <... write resumed>) = 21 [pid 4422] <... prctl resumed>) = 0 [pid 4421] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4420] <... openat resumed>) = 4 [pid 4419] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4422] setpgid(0, 0 [pid 4421] pipe2( [pid 4420] ioctl(4, LOOP_SET_FD, 3 [pid 4422] <... setpgid resumed>) = 0 [pid 4421] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4421] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4422] <... openat resumed>) = 3 [pid 4421] <... write resumed>) = 21 [pid 4422] write(3, "1000", 4 [pid 4421] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4422] <... write resumed>) = 4 [pid 3618] <... ioctl resumed>) = 0 [pid 4422] close(3 [pid 3618] close(3 [pid 4422] <... close resumed>) = 0 [pid 4420] <... ioctl resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4422] memfd_create("syzkaller", 0 [pid 4420] mkdir("./file0", 0777 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4422] <... memfd_create resumed>) = 3 [pid 4420] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 4422] ftruncate(3, 0 [pid 4420] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4423 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4422] <... ftruncate resumed>) = 0 [pid 4420] pipe2( [pid 4422] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4420] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4422] <... openat resumed>) = 4 [pid 4420] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4422] ioctl(4, LOOP_SET_FD, 3 [pid 4420] <... write resumed>) = 21 [pid 4422] <... ioctl resumed>) = 0 [pid 4420] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4422] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4423 attached [pid 4422] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4422] pipe2( [pid 4423] <... prctl resumed>) = 0 [pid 4422] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4423] setpgid(0, 0 [pid 4422] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4423] <... setpgid resumed>) = 0 [pid 4422] <... write resumed>) = 21 [pid 4423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4422] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4423] <... openat resumed>) = 3 [pid 4423] write(3, "1000", 4) = 4 [pid 4423] close(3) = 0 [pid 4423] memfd_create("syzkaller", 0) = 3 [pid 4423] ftruncate(3, 0) = 0 [pid 4423] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4423] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4423] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4423] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4423] pipe2([5, 6], 0) = 0 [pid 4423] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4423] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4419] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4424 [pid 4419] exit_group(0) = ? ./strace-static-x86_64: Process 4424 attached [pid 4419] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4419, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4425 [pid 4424] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 4425 attached [pid 4423] <... mount resumed>) = -1 EIO (Input/output error) [pid 4424] setpgid(0, 0 [pid 4423] exit_group(0 [pid 4424] <... setpgid resumed>) = 0 [pid 4425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4423] <... exit_group resumed>) = ? [pid 4424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4425] <... prctl resumed>) = 0 [pid 4424] <... openat resumed>) = 3 [pid 4423] +++ exited with 0 +++ [pid 4425] setpgid(0, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4423, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4425] <... setpgid resumed>) = 0 [pid 4425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4425] write(3, "1000", 4 [pid 3618] <... openat resumed>) = 3 [pid 4425] <... write resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4425] close(3) = 0 [pid 4424] write(3, "1000", 4 [pid 4425] memfd_create("syzkaller", 0 [pid 4424] <... write resumed>) = 4 [pid 4425] <... memfd_create resumed>) = 3 [pid 4425] ftruncate(3, 0) = 0 [pid 4424] close(3 [pid 4425] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4424] <... close resumed>) = 0 [pid 4425] <... openat resumed>) = 4 [pid 4425] ioctl(4, LOOP_SET_FD, 3 [pid 4424] memfd_create("syzkaller", 0 [pid 4425] <... ioctl resumed>) = 0 [pid 4425] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4425] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4425] pipe2([5, 6], 0) = 0 [pid 4425] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4425] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4424] <... memfd_create resumed>) = 3 [pid 4424] ftruncate(3, 0) = 0 [pid 4424] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4424] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4424] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4424] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4424] pipe2([5, 6], 0) = 0 [pid 4424] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4424] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4420] <... mount resumed>) = -1 EIO (Input/output error) [pid 4420] exit_group(0) = ? [pid 4420] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4420, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3618] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4426 [pid 4422] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4426 attached [pid 4422] exit_group(0 [pid 4426] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4422] <... exit_group resumed>) = ? [pid 4426] <... prctl resumed>) = 0 [pid 4422] +++ exited with 0 +++ [pid 4426] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4422, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4426] <... setpgid resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4426] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4426] write(3, "1000", 4) = 4 [pid 3617] close(3 [pid 4426] close(3 [pid 3617] <... close resumed>) = 0 [pid 4426] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4426] memfd_create("syzkaller", 0 [pid 4421] <... mount resumed>) = -1 EIO (Input/output error) [pid 4426] <... memfd_create resumed>) = 3 [pid 4426] ftruncate(3, 0 [pid 4421] exit_group(0 [pid 4426] <... ftruncate resumed>) = 0 [pid 4426] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4421] <... exit_group resumed>) = ? [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4427 [pid 4426] <... openat resumed>) = 4 [pid 4426] ioctl(4, LOOP_SET_FD, 3 [pid 4421] +++ exited with 0 +++ [pid 4426] <... ioctl resumed>) = 0 [pid 4426] mkdir("./file0", 0777 [pid 3620] <... ioctl resumed>) = 0 [pid 4426] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4421, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4426] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... close resumed>) = 0 [pid 4426] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4426] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4426] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4426] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4428 ./strace-static-x86_64: Process 4428 attached [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3 [pid 4428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4428] <... prctl resumed>) = 0 [pid 4428] setpgid(0, 0) = 0 [pid 4428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4429 [pid 4428] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4429 attached [pid 4428] write(3, "1000", 4./strace-static-x86_64: Process 4427 attached [pid 4429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4428] <... write resumed>) = 4 [pid 4429] <... prctl resumed>) = 0 [pid 4428] close(3 [pid 4429] setpgid(0, 0 [pid 4428] <... close resumed>) = 0 [pid 4429] <... setpgid resumed>) = 0 [pid 4428] memfd_create("syzkaller", 0 [pid 4429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4428] <... memfd_create resumed>) = 3 [pid 4427] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4429] <... openat resumed>) = 3 [pid 4428] ftruncate(3, 0 [pid 4429] write(3, "1000", 4 [pid 4428] <... ftruncate resumed>) = 0 [pid 4427] <... prctl resumed>) = 0 [pid 4429] <... write resumed>) = 4 [pid 4428] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4427] setpgid(0, 0 [pid 4429] close(3 [pid 4428] <... openat resumed>) = 4 [pid 4427] <... setpgid resumed>) = 0 [pid 4429] <... close resumed>) = 0 [pid 4428] ioctl(4, LOOP_SET_FD, 3 [pid 4429] memfd_create("syzkaller", 0 [pid 4428] <... ioctl resumed>) = 0 [pid 4429] <... memfd_create resumed>) = 3 [pid 4428] mkdir("./file0", 0777 [pid 4427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4429] ftruncate(3, 0 [pid 4428] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4429] <... ftruncate resumed>) = 0 [pid 4428] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4427] <... openat resumed>) = 3 [pid 4429] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4428] pipe2( [pid 4429] <... openat resumed>) = 4 [pid 4428] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4427] write(3, "1000", 4 [pid 4429] ioctl(4, LOOP_SET_FD, 3 [pid 4428] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4427] <... write resumed>) = 4 [pid 4429] <... ioctl resumed>) = 0 [pid 4428] <... write resumed>) = 21 [pid 4427] close(3 [pid 4429] mkdir("./file0", 0777 [pid 4428] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4427] <... close resumed>) = 0 [pid 4429] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4429] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4427] memfd_create("syzkaller", 0 [pid 4429] pipe2( [pid 4427] <... memfd_create resumed>) = 3 [pid 4429] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4427] ftruncate(3, 0 [pid 4429] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4427] <... ftruncate resumed>) = 0 [pid 4429] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4427] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4424] <... mount resumed>) = -1 EIO (Input/output error) [pid 4424] exit_group(0 [pid 4427] <... openat resumed>) = 4 [pid 4427] ioctl(4, LOOP_SET_FD, 3 [pid 4424] <... exit_group resumed>) = ? [pid 4427] <... ioctl resumed>) = 0 [pid 4424] +++ exited with 0 +++ [pid 4427] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4424, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4427] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4427] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4427] pipe2([5, 6], 0) = 0 [pid 4425] <... mount resumed>) = -1 EIO (Input/output error) [pid 4425] exit_group(0) = ? [pid 4425] +++ exited with 0 +++ [pid 4427] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4425, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4427] <... write resumed>) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4427] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4426] <... mount resumed>) = -1 EIO (Input/output error) [pid 4426] exit_group(0) = ? [pid 4426] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4426, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4429] <... mount resumed>) = -1 EIO (Input/output error) [pid 4429] exit_group(0) = ? [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] close(3 [pid 4429] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4429, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4430 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4431 [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4430 attached ./strace-static-x86_64: Process 4431 attached [pid 4431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4431] setpgid(0, 0) = 0 [pid 4431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4431] write(3, "1000", 4 [pid 4430] <... prctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4431] <... write resumed>) = 4 [pid 4431] close(3) = 0 [pid 4431] memfd_create("syzkaller", 0 [pid 4430] setpgid(0, 0 [pid 3618] close(3 [pid 4430] <... setpgid resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4431] <... memfd_create resumed>) = 3 [pid 4431] ftruncate(3, 0) = 0 [pid 4431] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4431] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4431] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4431] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4431] pipe2([5, 6], 0) = 0 [pid 4431] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4431] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4428] <... mount resumed>) = -1 EIO (Input/output error) [pid 4428] exit_group(0) = ? [pid 4428] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4428, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3./strace-static-x86_64: Process 4432 attached [pid 4430] <... openat resumed>) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4432 [pid 3615] <... close resumed>) = 0 [pid 4430] write(3, "1000", 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4430] <... write resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4432] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4430] close(3 [pid 3620] <... openat resumed>) = 3 [pid 4432] <... prctl resumed>) = 0 [pid 4430] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4433 [pid 4432] setpgid(0, 0 [pid 4430] memfd_create("syzkaller", 0) = 3 [pid 4430] ftruncate(3, 0 [pid 4432] <... setpgid resumed>) = 0 [pid 4430] <... ftruncate resumed>) = 0 [pid 4430] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4432] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4430] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4433 attached ) = 0 [pid 4430] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4430] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4430] pipe2( [pid 4433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4432] <... openat resumed>) = 3 [pid 4430] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4427] <... mount resumed>) = -1 EIO (Input/output error) [pid 4430] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4432] write(3, "1000", 4 [pid 4430] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4433] <... prctl resumed>) = 0 [pid 4432] <... write resumed>) = 4 [pid 4427] exit_group(0 [pid 4432] close(3) = 0 [pid 4432] memfd_create("syzkaller", 0 [pid 4427] <... exit_group resumed>) = ? [pid 4432] <... memfd_create resumed>) = 3 [pid 4432] ftruncate(3, 0) = 0 [pid 4432] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4433] setpgid(0, 0 [pid 4432] <... openat resumed>) = 4 [pid 4433] <... setpgid resumed>) = 0 [pid 4432] ioctl(4, LOOP_SET_FD, 3 [pid 4433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4432] <... ioctl resumed>) = 0 [pid 4427] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4427, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4432] mkdir("./file0", 0777 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4433] <... openat resumed>) = 3 [pid 4432] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4432] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4434 [pid 4432] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 4433] write(3, "1000", 4 [pid 4432] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4432] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4433] <... write resumed>) = 4 [pid 4432] <... write resumed>) = 21 [pid 4433] close(3./strace-static-x86_64: Process 4434 attached ) = 0 [pid 4432] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4434] setpgid(0, 0) = 0 [pid 4433] memfd_create("syzkaller", 0 [pid 4434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4433] <... memfd_create resumed>) = 3 [pid 4431] <... mount resumed>) = -1 EIO (Input/output error) [pid 4434] <... openat resumed>) = 3 [pid 4433] ftruncate(3, 0 [pid 4431] exit_group(0 [pid 4434] write(3, "1000", 4 [pid 4430] <... mount resumed>) = -1 EIO (Input/output error) [pid 4434] <... write resumed>) = 4 [pid 4430] exit_group(0 [pid 4434] close(3 [pid 4430] <... exit_group resumed>) = ? [pid 4434] <... close resumed>) = 0 [pid 4433] <... ftruncate resumed>) = 0 [pid 4431] <... exit_group resumed>) = ? [pid 4434] memfd_create("syzkaller", 0 [pid 4433] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4430] +++ exited with 0 +++ [pid 4434] <... memfd_create resumed>) = 3 [pid 4433] <... openat resumed>) = 4 [pid 4431] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4430, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4434] ftruncate(3, 0 [pid 4433] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4434] <... ftruncate resumed>) = 0 [pid 4434] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4433] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4431, si_uid=0, si_status=0, si_utime=1, si_stime=2} --- [pid 3617] close(3 [pid 4434] <... openat resumed>) = 4 [pid 4433] mkdir("./file0", 0777 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... close resumed>) = 0 [pid 4434] ioctl(4, LOOP_SET_FD, 3 [pid 4433] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4434] <... ioctl resumed>) = 0 [pid 4433] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4434] mkdir("./file0", 0777 [pid 4433] pipe2( [pid 4434] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4433] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4434] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4433] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4435 [pid 4434] pipe2( [pid 4433] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4434] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4433] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4435 attached [pid 4434] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 4435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4434] <... write resumed>) = 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4435] <... prctl resumed>) = 0 [pid 4434] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4435] setpgid(0, 0) = 0 [pid 4435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4435] write(3, "1000", 4) = 4 [pid 4435] close(3) = 0 [pid 4432] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4435] memfd_create("syzkaller", 0 [pid 4432] exit_group(0 [pid 3619] close(3 [pid 3616] close(3 [pid 4432] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4432] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4435] <... memfd_create resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4436 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4432, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4435] ftruncate(3, 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4437 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4435] <... ftruncate resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4435] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4437 attached ) = 4 [pid 4437] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4435] ioctl(4, LOOP_SET_FD, 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4437] <... prctl resumed>) = 0 [pid 4435] <... ioctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4437] setpgid(0, 0 [pid 4435] mkdir("./file0", 0777 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4436 attached [pid 4437] <... setpgid resumed>) = 0 [pid 4435] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4435] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4437] <... openat resumed>) = 3 [pid 4436] <... prctl resumed>) = 0 [pid 4435] pipe2( [pid 4437] write(3, "1000", 4 [pid 4436] setpgid(0, 0 [pid 4435] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4437] <... write resumed>) = 4 [pid 4436] <... setpgid resumed>) = 0 [pid 4435] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4437] close(3 [pid 4436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4435] <... write resumed>) = 21 [pid 4437] <... close resumed>) = 0 [pid 4436] <... openat resumed>) = 3 [pid 4435] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4437] memfd_create("syzkaller", 0 [pid 4436] write(3, "1000", 4 [pid 4437] <... memfd_create resumed>) = 3 [pid 4436] <... write resumed>) = 4 [pid 4437] ftruncate(3, 0 [pid 4436] close(3 [pid 4437] <... ftruncate resumed>) = 0 [pid 4436] <... close resumed>) = 0 [pid 4437] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4436] memfd_create("syzkaller", 0 [pid 4437] <... openat resumed>) = 4 [pid 4436] <... memfd_create resumed>) = 3 [pid 4437] ioctl(4, LOOP_SET_FD, 3 [pid 4436] ftruncate(3, 0 [pid 4437] <... ioctl resumed>) = 0 [pid 4436] <... ftruncate resumed>) = 0 [pid 4437] mkdir("./file0", 0777 [pid 4436] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4437] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4436] <... openat resumed>) = 4 [pid 4437] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4436] ioctl(4, LOOP_SET_FD, 3 [pid 4437] pipe2( [pid 4436] <... ioctl resumed>) = 0 [pid 4437] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4436] mkdir("./file0", 0777 [pid 4437] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4436] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4437] <... write resumed>) = 21 [pid 4436] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4437] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4436] pipe2([5, 6], 0) = 0 [pid 4433] <... mount resumed>) = -1 EIO (Input/output error) [pid 4436] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4436] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4434] <... mount resumed>) = -1 EIO (Input/output error) [pid 4433] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4434] exit_group(0 [pid 4433] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4433] +++ exited with 0 +++ [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4438 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4433, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4434] <... exit_group resumed>) = ? [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4434] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4434, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... openat resumed>) = 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4438 attached [pid 4438] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4438] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4438] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4438] <... setpgid resumed>) = 0 [pid 4438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4438] write(3, "1000", 4) = 4 [pid 4438] close(3) = 0 [pid 4438] memfd_create("syzkaller", 0) = 3 [pid 4438] ftruncate(3, 0) = 0 [pid 4438] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4438] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4438] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4438] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4438] pipe2([5, 6], 0) = 0 [pid 4438] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4438] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4435] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4435] exit_group(0) = ? [pid 3620] close(3 [pid 3615] close(3 [pid 4438] <... mount resumed>) = -1 EIO (Input/output error) [pid 4435] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4438] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4438] <... exit_group resumed>) = ? [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4435, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4438] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4439 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4440 [pid 3617] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4438, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4440 attached ./strace-static-x86_64: Process 4439 attached [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... openat resumed>) = 3 [pid 4440] <... prctl resumed>) = 0 [pid 4439] <... prctl resumed>) = 0 [pid 4437] <... mount resumed>) = -1 EIO (Input/output error) [pid 4436] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 4440] setpgid(0, 0 [pid 4439] setpgid(0, 0 [pid 4437] exit_group(0 [pid 4440] <... setpgid resumed>) = 0 [pid 4439] <... setpgid resumed>) = 0 [pid 4437] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 4440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4440] <... openat resumed>) = 3 [pid 4439] <... openat resumed>) = 3 [pid 4437] +++ exited with 0 +++ [pid 4436] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 4440] write(3, "1000", 4 [pid 4439] write(3, "1000", 4 [pid 4436] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4440] <... write resumed>) = 4 [pid 4439] <... write resumed>) = 4 [pid 4440] close(3 [pid 4439] close(3 [pid 4436] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4437, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4436, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4439] <... close resumed>) = 0 [pid 4440] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4439] memfd_create("syzkaller", 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4440] memfd_create("syzkaller", 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4441 [pid 4440] <... memfd_create resumed>) = 3 [pid 4439] <... memfd_create resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 4440] ftruncate(3, 0 [pid 4439] ftruncate(3, 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4440] <... ftruncate resumed>) = 0 [pid 4439] <... ftruncate resumed>) = 0 [pid 4439] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4440] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4439] <... openat resumed>) = 4 [pid 4440] <... openat resumed>) = 4 [pid 4439] ioctl(4, LOOP_SET_FD, 3 [pid 4440] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4439] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4440] mkdir("./file0", 0777 [pid 4439] mkdir("./file0", 0777 [pid 3618] close(3 [pid 4440] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4439] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 ./strace-static-x86_64: Process 4441 attached [pid 4440] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4439] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4440] pipe2( [pid 4439] pipe2( [pid 4441] <... prctl resumed>) = 0 [pid 4440] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4439] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4442 [pid 4441] setpgid(0, 0 [pid 4440] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4439] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4441] <... setpgid resumed>) = 0 [pid 4440] <... write resumed>) = 21 [pid 4439] <... write resumed>) = 21 [pid 4441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4440] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4439] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4442 attached [pid 4441] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4441] write(3, "1000", 4 [pid 3619] close(3 [pid 3616] close(3 [pid 4442] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4441] <... write resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4442] <... prctl resumed>) = 0 [pid 4441] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4442] setpgid(0, 0 [pid 4441] <... close resumed>) = 0 [pid 4441] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4443 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4444 [pid 4441] <... memfd_create resumed>) = 3 [pid 4442] <... setpgid resumed>) = 0 [pid 4441] ftruncate(3, 0 [pid 4442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4441] <... ftruncate resumed>) = 0 [pid 4442] <... openat resumed>) = 3 [pid 4441] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4442] write(3, "1000", 4 [pid 4441] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4444 attached [pid 4442] <... write resumed>) = 4 [pid 4441] ioctl(4, LOOP_SET_FD, 3 [pid 4444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4442] close(3 [pid 4441] <... ioctl resumed>) = 0 [pid 4444] <... prctl resumed>) = 0 [pid 4441] mkdir("./file0", 0777 [pid 4444] setpgid(0, 0 [pid 4441] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4444] <... setpgid resumed>) = 0 [pid 4441] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4441] pipe2( [pid 4444] <... openat resumed>) = 3 [pid 4442] <... close resumed>) = 0 [pid 4441] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4440] <... mount resumed>) = -1 EIO (Input/output error) [pid 4444] write(3, "1000", 4 [pid 4442] memfd_create("syzkaller", 0 [pid 4441] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4440] exit_group(0 [pid 4444] <... write resumed>) = 4 [pid 4442] <... memfd_create resumed>) = 3 [pid 4441] <... write resumed>) = 21 [pid 4440] <... exit_group resumed>) = ? [pid 4444] close(3 [pid 4442] ftruncate(3, 0 [pid 4441] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4440] +++ exited with 0 +++ [pid 4444] <... close resumed>) = 0 [pid 4442] <... ftruncate resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4440, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4444] memfd_create("syzkaller", 0 [pid 4442] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4444] <... memfd_create resumed>) = 3 [pid 4442] <... openat resumed>) = 4 [pid 4444] ftruncate(3, 0 [pid 4442] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4443 attached [pid 4444] <... ftruncate resumed>) = 0 [pid 4442] <... ioctl resumed>) = 0 [pid 4444] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4442] mkdir("./file0", 0777 [pid 4439] <... mount resumed>) = -1 EIO (Input/output error) [pid 4444] <... openat resumed>) = 4 [pid 4443] <... prctl resumed>) = 0 [pid 4442] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4439] exit_group(0 [pid 4444] ioctl(4, LOOP_SET_FD, 3 [pid 4443] setpgid(0, 0 [pid 4442] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4439] <... exit_group resumed>) = ? [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4444] <... ioctl resumed>) = 0 [pid 4443] <... setpgid resumed>) = 0 [pid 4442] pipe2( [pid 4439] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 4444] mkdir("./file0", 0777 [pid 4443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4442] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4439, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4444] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4443] <... openat resumed>) = 3 [pid 4442] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... ioctl resumed>) = 0 [pid 4444] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4443] write(3, "1000", 4 [pid 4442] <... write resumed>) = 21 [pid 3615] close(3 [pid 4444] pipe2( [pid 4443] <... write resumed>) = 4 [pid 4442] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 4444] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4443] close(3 [pid 4441] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4444] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4443] <... close resumed>) = 0 [pid 4441] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4444] <... write resumed>) = 21 [pid 4443] memfd_create("syzkaller", 0 [pid 4441] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4445 [pid 4444] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4443] <... memfd_create resumed>) = 3 [pid 4441] +++ exited with 0 +++ [pid 4443] ftruncate(3, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4441, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4443] <... ftruncate resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4443] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... restart_syscall resumed>) = 0 [pid 4443] <... openat resumed>) = 4 [pid 4443] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4443] mkdir("./file0", 0777 [pid 3617] <... openat resumed>) = 3 [pid 4443] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4443] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4443] pipe2(./strace-static-x86_64: Process 4445 attached [5, 6], 0) = 0 [pid 4445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4443] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4445] <... prctl resumed>) = 0 [pid 4443] <... write resumed>) = 21 [pid 4445] setpgid(0, 0 [pid 4443] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4445] <... setpgid resumed>) = 0 [pid 4445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4445] write(3, "1000", 4) = 4 [pid 4445] close(3) = 0 [pid 4445] memfd_create("syzkaller", 0) = 3 [pid 4445] ftruncate(3, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4445] <... ftruncate resumed>) = 0 [pid 3620] close(3 [pid 3617] close(3 [pid 4445] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4445] <... openat resumed>) = 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4445] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4446 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4447 [pid 4445] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4446 attached [pid 4445] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4445] pipe2(./strace-static-x86_64: Process 4447 attached [pid 4446] <... prctl resumed>) = 0 [pid 4445] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4446] setpgid(0, 0 [pid 4445] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4447] <... prctl resumed>) = 0 [pid 4446] <... setpgid resumed>) = 0 [pid 4445] <... write resumed>) = 21 [pid 4447] setpgid(0, 0 [pid 4446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4445] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4447] <... setpgid resumed>) = 0 [pid 4446] <... openat resumed>) = 3 [pid 4447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4446] write(3, "1000", 4 [pid 4447] <... openat resumed>) = 3 [pid 4446] <... write resumed>) = 4 [pid 4447] write(3, "1000", 4 [pid 4446] close(3 [pid 4442] <... mount resumed>) = -1 EIO (Input/output error) [pid 4447] <... write resumed>) = 4 [pid 4446] <... close resumed>) = 0 [pid 4442] exit_group(0 [pid 4447] close(3 [pid 4446] memfd_create("syzkaller", 0 [pid 4442] <... exit_group resumed>) = ? [pid 4447] <... close resumed>) = 0 [pid 4446] <... memfd_create resumed>) = 3 [pid 4442] +++ exited with 0 +++ [pid 4447] memfd_create("syzkaller", 0 [pid 4446] ftruncate(3, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4442, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4447] <... memfd_create resumed>) = 3 [pid 4446] <... ftruncate resumed>) = 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4447] ftruncate(3, 0 [pid 4446] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... restart_syscall resumed>) = 0 [pid 4447] <... ftruncate resumed>) = 0 [pid 4446] <... openat resumed>) = 4 [pid 4447] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4446] ioctl(4, LOOP_SET_FD, 3 [pid 4447] <... openat resumed>) = 4 [pid 4446] <... ioctl resumed>) = 0 [pid 4444] <... mount resumed>) = -1 EIO (Input/output error) [pid 4447] ioctl(4, LOOP_SET_FD, 3 [pid 4446] mkdir("./file0", 0777 [pid 4444] exit_group(0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4447] <... ioctl resumed>) = 0 [pid 4446] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4444] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 4447] mkdir("./file0", 0777 [pid 4446] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4444] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4447] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4446] pipe2( [pid 3618] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4444, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4447] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4446] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] close(3 [pid 4447] pipe2( [pid 4446] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... close resumed>) = 0 [pid 4447] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4446] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4447] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4446] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4447] <... write resumed>) = 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4447] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4448 [pid 4443] <... mount resumed>) = -1 EIO (Input/output error) [pid 4443] exit_group(0) = ? ./strace-static-x86_64: Process 4448 attached [pid 4443] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4443, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4448] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4448] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... ioctl resumed>) = 0 [pid 4448] <... openat resumed>) = 3 [pid 3619] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3616] close(3 [pid 4448] write(3, "1000", 4 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 4448] <... write resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4448] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4449 [pid 4448] <... close resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4450 [pid 4448] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4449 attached ) = 3 ./strace-static-x86_64: Process 4450 attached [pid 4449] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4448] ftruncate(3, 0 [pid 4450] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4449] <... prctl resumed>) = 0 [pid 4448] <... ftruncate resumed>) = 0 [pid 4450] <... prctl resumed>) = 0 [pid 4449] setpgid(0, 0 [pid 4450] setpgid(0, 0 [pid 4449] <... setpgid resumed>) = 0 [pid 4448] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4450] <... setpgid resumed>) = 0 [pid 4449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4448] <... openat resumed>) = 4 [pid 4450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4449] <... openat resumed>) = 3 [pid 4448] ioctl(4, LOOP_SET_FD, 3 [pid 4450] <... openat resumed>) = 3 [pid 4449] write(3, "1000", 4 [pid 4448] <... ioctl resumed>) = 0 [pid 4450] write(3, "1000", 4 [pid 4449] <... write resumed>) = 4 [pid 4448] mkdir("./file0", 0777 [pid 4450] <... write resumed>) = 4 [pid 4449] close(3 [pid 4448] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4450] close(3 [pid 4449] <... close resumed>) = 0 [pid 4448] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4450] <... close resumed>) = 0 [pid 4449] memfd_create("syzkaller", 0 [pid 4448] pipe2( [pid 4450] memfd_create("syzkaller", 0 [pid 4449] <... memfd_create resumed>) = 3 [pid 4448] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4450] <... memfd_create resumed>) = 3 [pid 4449] ftruncate(3, 0 [pid 4448] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4450] ftruncate(3, 0 [pid 4449] <... ftruncate resumed>) = 0 [pid 4448] <... write resumed>) = 21 [pid 4450] <... ftruncate resumed>) = 0 [pid 4449] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4448] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4445] <... mount resumed>) = -1 EIO (Input/output error) [pid 4450] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4449] <... openat resumed>) = 4 [pid 4445] exit_group(0 [pid 4450] <... openat resumed>) = 4 [pid 4449] ioctl(4, LOOP_SET_FD, 3 [pid 4445] <... exit_group resumed>) = ? [pid 4450] ioctl(4, LOOP_SET_FD, 3 [pid 4449] <... ioctl resumed>) = 0 [pid 4445] +++ exited with 0 +++ [pid 4450] <... ioctl resumed>) = 0 [pid 4449] mkdir("./file0", 0777 [pid 4450] mkdir("./file0", 0777 [pid 4449] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4445, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4450] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4449] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4450] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4449] pipe2( [pid 3615] <... openat resumed>) = 3 [pid 4450] pipe2( [pid 4449] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4450] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4449] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4450] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4449] <... write resumed>) = 21 [pid 4450] <... write resumed>) = 21 [pid 4449] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4450] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4446] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... close resumed>) = 0 [pid 4446] exit_group(0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4446] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4451 [pid 4446] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4446, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4451 attached [pid 4447] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4451] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4447] exit_group(0 [pid 3620] close(3 [pid 4451] <... prctl resumed>) = 0 [pid 4447] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4451] setpgid(0, 0 [pid 4447] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4451] <... setpgid resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4447, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4452 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... restart_syscall resumed>) = 0 [pid 4451] <... openat resumed>) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4452 attached [pid 4451] write(3, "1000", 4 [pid 3617] <... openat resumed>) = 3 [pid 4452] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4452] <... prctl resumed>) = 0 [pid 4451] <... write resumed>) = 4 [pid 4452] setpgid(0, 0) = 0 [pid 4452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4452] write(3, "1000", 4) = 4 [pid 4452] close(3 [pid 4451] close(3 [pid 4452] <... close resumed>) = 0 [pid 4452] memfd_create("syzkaller", 0 [pid 4451] <... close resumed>) = 0 [pid 4452] <... memfd_create resumed>) = 3 [pid 4451] memfd_create("syzkaller", 0 [pid 4452] ftruncate(3, 0) = 0 [pid 4451] <... memfd_create resumed>) = 3 [pid 4452] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4451] ftruncate(3, 0 [pid 4452] <... openat resumed>) = 4 [pid 4451] <... ftruncate resumed>) = 0 [pid 4452] ioctl(4, LOOP_SET_FD, 3 [pid 4451] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4452] <... ioctl resumed>) = 0 [pid 4451] <... openat resumed>) = 4 [pid 4452] mkdir("./file0", 0777 [pid 4451] ioctl(4, LOOP_SET_FD, 3 [pid 4452] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4452] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4451] <... ioctl resumed>) = 0 [pid 4452] pipe2( [pid 4451] mkdir("./file0", 0777 [pid 4452] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4451] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4452] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4448] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4452] <... write resumed>) = 21 [pid 3617] close(3 [pid 4452] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... close resumed>) = 0 [pid 4451] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4448] exit_group(0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4451] pipe2( [pid 4448] <... exit_group resumed>) = ? [pid 4451] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4453 [pid 4451] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4448] +++ exited with 0 +++ [pid 4451] <... write resumed>) = 21 [pid 4451] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4448, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4453 attached [pid 4453] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4449] <... mount resumed>) = -1 EIO (Input/output error) [pid 4453] setpgid(0, 0 [pid 4449] exit_group(0) = ? [pid 4453] <... setpgid resumed>) = 0 [pid 4449] +++ exited with 0 +++ [pid 4453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4449, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] close(3 [pid 4453] <... openat resumed>) = 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4453] write(3, "1000", 4 [pid 3618] <... close resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4453] <... write resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4453] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4453] <... close resumed>) = 0 [pid 4453] memfd_create("syzkaller", 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4454 [pid 4453] <... memfd_create resumed>) = 3 [pid 4453] ftruncate(3, 0) = 0 [pid 4453] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4453] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4453] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4454 attached [pid 4453] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4453] pipe2([5, 6], 0) = 0 [pid 4453] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4453] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4450] <... mount resumed>) = -1 EIO (Input/output error) [pid 4454] setpgid(0, 0 [pid 4450] exit_group(0) = ? [pid 4454] <... setpgid resumed>) = 0 [pid 4450] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4450, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4454] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 4454] write(3, "1000", 4 [pid 3619] close(3 [pid 4454] <... write resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4454] close(3 [pid 4452] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4454] <... close resumed>) = 0 [pid 4452] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4455 [pid 4452] <... exit_group resumed>) = ? [pid 4454] memfd_create("syzkaller", 0 [pid 4452] +++ exited with 0 +++ [pid 3616] close(3./strace-static-x86_64: Process 4455 attached [pid 4454] <... memfd_create resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4454] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4452, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4455] <... prctl resumed>) = 0 [pid 4454] <... ftruncate resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4455] setpgid(0, 0 [pid 4454] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... restart_syscall resumed>) = 0 [pid 4455] <... setpgid resumed>) = 0 [pid 4454] <... openat resumed>) = 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4456 [pid 4455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4454] ioctl(4, LOOP_SET_FD, 3 [pid 4451] <... mount resumed>) = -1 EIO (Input/output error) [pid 4455] <... openat resumed>) = 3 [pid 4454] <... ioctl resumed>) = 0 [pid 4451] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4456 attached [pid 4455] write(3, "1000", 4 [pid 4454] mkdir("./file0", 0777 [pid 4451] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 4456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4455] <... write resumed>) = 4 [pid 4454] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4451] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4455] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4451, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4455] <... close resumed>) = 0 [pid 4455] memfd_create("syzkaller", 0) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4455] ftruncate(3, 0 [pid 3615] <... openat resumed>) = 3 [pid 4455] <... ftruncate resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4455] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4455] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4455] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4455] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4455] pipe2([5, 6], 0) = 0 [pid 4455] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4456] <... prctl resumed>) = 0 [pid 4455] <... write resumed>) = 21 [pid 4454] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4455] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4456] setpgid(0, 0 [pid 4454] pipe2( [pid 4456] <... setpgid resumed>) = 0 [pid 4454] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4453] <... mount resumed>) = -1 EIO (Input/output error) [pid 4456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4454] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4453] exit_group(0 [pid 4456] <... openat resumed>) = 3 [pid 4454] <... write resumed>) = 21 [pid 4453] <... exit_group resumed>) = ? [pid 4456] write(3, "1000", 4 [pid 4454] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4453] +++ exited with 0 +++ [pid 4456] <... write resumed>) = 4 [pid 4456] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4453, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4456] <... close resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... ioctl resumed>) = 0 [pid 4456] memfd_create("syzkaller", 0 [pid 3620] close(3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] close(3 [pid 4456] <... memfd_create resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4456] ftruncate(3, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4456] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4456] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4457 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4458 [pid 4456] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4458 attached [pid 4456] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4457 attached [pid 4458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4456] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4458] <... prctl resumed>) = 0 [pid 4457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4456] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 4458] setpgid(0, 0 [pid 4457] <... prctl resumed>) = 0 [pid 4456] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4458] <... setpgid resumed>) = 0 [pid 4457] setpgid(0, 0 [pid 4456] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4457] <... setpgid resumed>) = 0 [pid 4456] pipe2( [pid 4455] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4459 [pid 4458] <... openat resumed>) = 3 [pid 4457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4456] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4455] exit_group(0./strace-static-x86_64: Process 4459 attached [pid 4458] write(3, "1000", 4 [pid 4457] <... openat resumed>) = 3 [pid 4456] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4455] <... exit_group resumed>) = ? [pid 4459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4458] <... write resumed>) = 4 [pid 4457] write(3, "1000", 4 [pid 4456] <... write resumed>) = 21 [pid 4455] +++ exited with 0 +++ [pid 4459] <... prctl resumed>) = 0 [pid 4458] close(3 [pid 4457] <... write resumed>) = 4 [pid 4456] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4459] setpgid(0, 0 [pid 4458] <... close resumed>) = 0 [pid 4457] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4455, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4459] <... setpgid resumed>) = 0 [pid 4458] memfd_create("syzkaller", 0 [pid 4457] <... close resumed>) = 0 [pid 4454] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4458] <... memfd_create resumed>) = 3 [pid 4457] memfd_create("syzkaller", 0 [pid 4454] exit_group(0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4458] ftruncate(3, 0 [pid 4457] <... memfd_create resumed>) = 3 [pid 4454] <... exit_group resumed>) = ? [pid 4459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4458] <... ftruncate resumed>) = 0 [pid 4457] ftruncate(3, 0 [pid 4454] +++ exited with 0 +++ [pid 4459] <... openat resumed>) = 3 [pid 4458] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4457] <... ftruncate resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4454, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4459] write(3, "1000", 4 [pid 4458] <... openat resumed>) = 4 [pid 4457] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 4459] <... write resumed>) = 4 [pid 4458] ioctl(4, LOOP_SET_FD, 3 [pid 4457] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4459] close(3 [pid 4458] <... ioctl resumed>) = 0 [pid 4457] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... ioctl resumed>) = 0 [pid 4459] <... close resumed>) = 0 [pid 4458] mkdir("./file0", 0777 [pid 4457] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 4459] memfd_create("syzkaller", 0 [pid 4458] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4457] mkdir("./file0", 0777 [pid 3619] <... close resumed>) = 0 [pid 4459] <... memfd_create resumed>) = 3 [pid 4458] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4457] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4459] ftruncate(3, 0 [pid 4458] pipe2( [pid 4457] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4459] <... ftruncate resumed>) = 0 [pid 4458] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4457] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4460 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4459] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4458] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4457] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4459] <... openat resumed>) = 4 [pid 4458] <... write resumed>) = 21 [pid 4457] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4459] ioctl(4, LOOP_SET_FD, 3 [pid 4458] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4457] <... write resumed>) = 21 [pid 4456] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4460 attached [pid 4459] <... ioctl resumed>) = 0 [pid 4457] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4456] exit_group(0 [pid 4460] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4459] mkdir("./file0", 0777 [pid 4456] <... exit_group resumed>) = ? [pid 4460] <... prctl resumed>) = 0 [pid 4459] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4460] setpgid(0, 0 [pid 4459] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4460] <... setpgid resumed>) = 0 [pid 4459] pipe2( [pid 4456] +++ exited with 0 +++ [pid 4460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4459] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4456, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4460] <... openat resumed>) = 3 [pid 4459] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4458] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4460] write(3, "1000", 4 [pid 4459] <... write resumed>) = 21 [pid 4458] exit_group(0 [pid 3618] close(3 [pid 4460] <... write resumed>) = 4 [pid 4459] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4458] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4460] close(3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4460] <... close resumed>) = 0 [pid 4458] +++ exited with 0 +++ [pid 4460] memfd_create("syzkaller", 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4461 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4458, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4460] <... memfd_create resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4461 attached [pid 4460] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... restart_syscall resumed>) = 0 [pid 4461] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4460] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4460] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4460] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... openat resumed>) = 3 [pid 4461] <... prctl resumed>) = 0 [pid 4460] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4461] setpgid(0, 0 [pid 4460] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4460] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4460] pipe2( [pid 4461] <... setpgid resumed>) = 0 [pid 4460] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4461] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4460] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4461] <... openat resumed>) = 3 [pid 4460] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4461] write(3, "1000", 4) = 4 [pid 4461] close(3) = 0 [pid 4461] memfd_create("syzkaller", 0) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4461] ftruncate(3, 0 [pid 3615] close(3 [pid 4461] <... ftruncate resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4461] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4461] <... openat resumed>) = 4 [pid 3616] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4463 [pid 4461] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... close resumed>) = 0 [pid 4461] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4461] mkdir("./file0", 0777./strace-static-x86_64: Process 4463 attached ) = -1 EEXIST (File exists) [pid 4463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4461] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4463] <... prctl resumed>) = 0 [pid 4461] pipe2( [pid 4457] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4464 [pid 4463] setpgid(0, 0 [pid 4461] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4457] exit_group(0 [pid 4463] <... setpgid resumed>) = 0 [pid 4461] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4457] <... exit_group resumed>) = ? [pid 4463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4461] <... write resumed>) = 21 [pid 4457] +++ exited with 0 +++ ./strace-static-x86_64: Process 4464 attached [pid 4463] <... openat resumed>) = 3 [pid 4461] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4457, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4463] write(3, "1000", 4 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4464] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4463] <... write resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4463] close(3) = 0 [pid 4463] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4464] <... prctl resumed>) = 0 [pid 4463] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4464] setpgid(0, 0 [pid 4463] ftruncate(3, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4464] <... setpgid resumed>) = 0 [pid 4463] <... ftruncate resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4463] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] close(3 [pid 4464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4463] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 4464] <... openat resumed>) = 3 [pid 4463] ioctl(4, LOOP_SET_FD, 3 [pid 4459] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4464] write(3, "1000", 4 [pid 4463] <... ioctl resumed>) = 0 [pid 4459] exit_group(0 [pid 4464] <... write resumed>) = 4 [pid 4463] mkdir("./file0", 0777 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4465 [pid 4464] close(3 [pid 4463] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4465 attached [pid 4464] <... close resumed>) = 0 [pid 4463] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4459] <... exit_group resumed>) = ? [pid 4465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4464] memfd_create("syzkaller", 0 [pid 4463] pipe2( [pid 4459] +++ exited with 0 +++ [pid 4465] <... prctl resumed>) = 0 [pid 4464] <... memfd_create resumed>) = 3 [pid 4463] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4459, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4465] setpgid(0, 0 [pid 4464] ftruncate(3, 0 [pid 4463] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4460] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4465] <... setpgid resumed>) = 0 [pid 4464] <... ftruncate resumed>) = 0 [pid 4463] <... write resumed>) = 21 [pid 4460] exit_group(0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4464] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4463] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4460] <... exit_group resumed>) = ? [pid 4465] <... openat resumed>) = 3 [pid 4464] <... openat resumed>) = 4 [pid 4460] +++ exited with 0 +++ [pid 4465] write(3, "1000", 4 [pid 4464] ioctl(4, LOOP_SET_FD, 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4465] <... write resumed>) = 4 [pid 4464] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4460, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... openat resumed>) = 3 [pid 4465] close(3 [pid 4464] mkdir("./file0", 0777 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4465] <... close resumed>) = 0 [pid 4464] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4465] memfd_create("syzkaller", 0 [pid 4464] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] close(3 [pid 4465] <... memfd_create resumed>) = 3 [pid 4464] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4465] ftruncate(3, 0 [pid 4464] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4465] <... ftruncate resumed>) = 0 [pid 4464] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4461] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... close resumed>) = 0 ./strace-static-x86_64: Process 4466 attached [pid 4465] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4464] <... write resumed>) = 21 [pid 4461] exit_group(0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4466 [pid 4466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4465] <... openat resumed>) = 4 [pid 4464] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4461] <... exit_group resumed>) = ? [pid 4466] <... prctl resumed>) = 0 [pid 4465] ioctl(4, LOOP_SET_FD, 3 [pid 4461] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4467 [pid 4466] setpgid(0, 0 [pid 4465] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4461, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4466] <... setpgid resumed>) = 0 [pid 4465] mkdir("./file0", 0777./strace-static-x86_64: Process 4467 attached [pid 4466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4465] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4467] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4466] <... openat resumed>) = 3 [pid 4465] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4467] <... prctl resumed>) = 0 [pid 4465] pipe2( [pid 3618] <... openat resumed>) = 3 [pid 4467] setpgid(0, 0 [pid 4465] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4467] <... setpgid resumed>) = 0 [pid 4466] write(3, "1000", 4 [pid 4465] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4465] <... write resumed>) = 21 [pid 4467] <... openat resumed>) = 3 [pid 4466] <... write resumed>) = 4 [pid 4465] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4467] write(3, "1000", 4 [pid 4466] close(3 [pid 4467] <... write resumed>) = 4 [pid 4466] <... close resumed>) = 0 [pid 4467] close(3 [pid 4466] memfd_create("syzkaller", 0 [pid 4467] <... close resumed>) = 0 [pid 4466] <... memfd_create resumed>) = 3 [pid 4467] memfd_create("syzkaller", 0 [pid 4466] ftruncate(3, 0 [pid 4467] <... memfd_create resumed>) = 3 [pid 4466] <... ftruncate resumed>) = 0 [pid 4467] ftruncate(3, 0 [pid 4466] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4467] <... ftruncate resumed>) = 0 [pid 4466] <... openat resumed>) = 4 [pid 4467] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4466] ioctl(4, LOOP_SET_FD, 3 [pid 4467] <... openat resumed>) = 4 [pid 4466] <... ioctl resumed>) = 0 [pid 4467] ioctl(4, LOOP_SET_FD, 3 [pid 4466] mkdir("./file0", 0777 [pid 4463] <... mount resumed>) = -1 EIO (Input/output error) [pid 4467] <... ioctl resumed>) = 0 [pid 4466] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4463] exit_group(0 [pid 4467] mkdir("./file0", 0777 [pid 4466] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4463] <... exit_group resumed>) = ? [pid 4467] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4466] pipe2( [pid 4463] +++ exited with 0 +++ [pid 3618] <... ioctl resumed>) = 0 [pid 4467] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4466] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] close(3 [pid 4467] pipe2( [pid 4466] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4463, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4467] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4466] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4467] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4466] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 4467] <... write resumed>) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4468 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4468 attached [pid 4467] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4468] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4468] setpgid(0, 0) = 0 [pid 4468] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4468] write(3, "1000", 4) = 4 [pid 4468] close(3) = 0 [pid 4468] memfd_create("syzkaller", 0) = 3 [pid 4468] ftruncate(3, 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4468] <... ftruncate resumed>) = 0 [pid 3615] close(3 [pid 4468] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3615] <... close resumed>) = 0 [pid 4468] ioctl(4, LOOP_SET_FD, 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4468] <... ioctl resumed>) = 0 [pid 4468] mkdir("./file0", 0777 [pid 4464] <... mount resumed>) = -1 EIO (Input/output error) [pid 4468] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4464] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4469 ./strace-static-x86_64: Process 4469 attached [pid 4468] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4464] <... exit_group resumed>) = ? [pid 4469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4468] pipe2( [pid 4464] +++ exited with 0 +++ [pid 4469] <... prctl resumed>) = 0 [pid 4468] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4464, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4469] setpgid(0, 0 [pid 4468] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4469] <... setpgid resumed>) = 0 [pid 4468] <... write resumed>) = 21 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4468] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4469] <... openat resumed>) = 3 [pid 4469] write(3, "1000", 4) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4469] close(3 [pid 4465] <... mount resumed>) = -1 EIO (Input/output error) [pid 4469] <... close resumed>) = 0 [pid 4465] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 4469] memfd_create("syzkaller", 0 [pid 4465] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4469] <... memfd_create resumed>) = 3 [pid 4465] +++ exited with 0 +++ [pid 4469] ftruncate(3, 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4465, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4469] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4469] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 4469] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4469] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4469] mkdir("./file0", 0777 [pid 3620] close(3 [pid 4469] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 4469] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4469] pipe2([5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4470 [pid 4469] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4469] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4470 attached [pid 4468] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4470] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4468] exit_group(0 [pid 3616] close(3 [pid 4470] <... prctl resumed>) = 0 [pid 4468] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4470] setpgid(0, 0) = 0 [pid 4468] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4468, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4470] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4471 attached [pid 4470] write(3, "1000", 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4471 [pid 4470] <... write resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4470] close(3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4471] <... prctl resumed>) = 0 [pid 4470] <... close resumed>) = 0 [pid 4471] setpgid(0, 0 [pid 4470] memfd_create("syzkaller", 0 [pid 4471] <... setpgid resumed>) = 0 [pid 4470] <... memfd_create resumed>) = 3 [pid 4471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4470] ftruncate(3, 0 [pid 4471] <... openat resumed>) = 3 [pid 4470] <... ftruncate resumed>) = 0 [pid 4471] write(3, "1000", 4 [pid 4470] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4471] <... write resumed>) = 4 [pid 4470] <... openat resumed>) = 4 [pid 4471] close(3 [pid 4470] ioctl(4, LOOP_SET_FD, 3 [pid 4471] <... close resumed>) = 0 [pid 4470] <... ioctl resumed>) = 0 [pid 4467] <... mount resumed>) = -1 EIO (Input/output error) [pid 4467] exit_group(0 [pid 4471] memfd_create("syzkaller", 0 [pid 4470] mkdir("./file0", 0777 [pid 4467] <... exit_group resumed>) = ? [pid 4471] <... memfd_create resumed>) = 3 [pid 4470] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4467] +++ exited with 0 +++ [pid 4471] ftruncate(3, 0 [pid 4470] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4467, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4471] <... ftruncate resumed>) = 0 [pid 4470] pipe2( [pid 4471] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4470] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4471] <... openat resumed>) = 4 [pid 4470] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4471] ioctl(4, LOOP_SET_FD, 3 [pid 4470] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 4471] <... ioctl resumed>) = 0 [pid 4470] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4471] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4471] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4471] pipe2([5, 6], 0) = 0 [pid 4471] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4471] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 4466] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4472 ./strace-static-x86_64: Process 4472 attached [pid 4472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4472] setpgid(0, 0 [pid 4466] exit_group(0 [pid 4472] <... setpgid resumed>) = 0 [pid 4472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4472] write(3, "1000", 4) = 4 [pid 4466] <... exit_group resumed>) = ? [pid 4472] close(3) = 0 [pid 4472] memfd_create("syzkaller", 0 [pid 4466] +++ exited with 0 +++ [pid 4472] <... memfd_create resumed>) = 3 [pid 4472] ftruncate(3, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4466, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4472] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4472] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4472] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4472] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4472] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4472] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4472] pipe2([5, 6], 0) = 0 [pid 4472] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4472] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4469] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 4469] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4469] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4473 [pid 4469] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4469, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4474 ./strace-static-x86_64: Process 4474 attached [pid 4474] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4470] <... mount resumed>) = -1 EIO (Input/output error) [pid 4474] <... prctl resumed>) = 0 [pid 4474] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4473 attached [pid 4470] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 4473] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4470] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 4474] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4473] <... prctl resumed>) = 0 [pid 4474] <... openat resumed>) = 3 [pid 4473] setpgid(0, 0 [pid 4471] <... mount resumed>) = -1 EIO (Input/output error) [pid 4470] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 4474] write(3, "1000", 4 [pid 4473] <... setpgid resumed>) = 0 [pid 4471] exit_group(0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4470, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4474] <... write resumed>) = 4 [pid 4473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4471] <... exit_group resumed>) = ? [pid 4474] close(3) = 0 [pid 4473] <... openat resumed>) = 3 [pid 4471] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4475 ./strace-static-x86_64: Process 4475 attached [pid 4474] memfd_create("syzkaller", 0 [pid 4473] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 4475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4474] <... memfd_create resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4471, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4475] <... prctl resumed>) = 0 [pid 4474] ftruncate(3, 0 [pid 4473] <... write resumed>) = 4 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4475] setpgid(0, 0 [pid 4474] <... ftruncate resumed>) = 0 [pid 4473] close(3 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4475] <... setpgid resumed>) = 0 [pid 4474] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4473] <... close resumed>) = 0 [pid 4475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4474] <... openat resumed>) = 4 [pid 4473] memfd_create("syzkaller", 0 [pid 4475] <... openat resumed>) = 3 [pid 4474] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4474] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4474] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4475] write(3, "1000", 4 [pid 4474] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4473] <... memfd_create resumed>) = 3 [pid 4472] <... mount resumed>) = -1 EIO (Input/output error) [pid 4475] <... write resumed>) = 4 [pid 4474] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4473] ftruncate(3, 0 [pid 4472] exit_group(0 [pid 4475] close(3 [pid 4474] pipe2( [pid 4473] <... ftruncate resumed>) = 0 [pid 4472] <... exit_group resumed>) = ? [pid 4475] <... close resumed>) = 0 [pid 4474] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4473] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4472] +++ exited with 0 +++ [pid 4475] memfd_create("syzkaller", 0 [pid 4474] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4473] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4472, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4475] <... memfd_create resumed>) = 3 [pid 4474] <... write resumed>) = 21 [pid 4473] ioctl(4, LOOP_SET_FD, 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4475] ftruncate(3, 0 [pid 4474] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4473] <... ioctl resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4475] <... ftruncate resumed>) = 0 [pid 4473] mkdir("./file0", 0777 [pid 3620] <... ioctl resumed>) = 0 [pid 4475] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4473] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] close(3 [pid 4475] <... openat resumed>) = 4 [pid 4473] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4475] ioctl(4, LOOP_SET_FD, 3 [pid 4473] pipe2( [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 4475] <... ioctl resumed>) = 0 [pid 4473] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 4475] mkdir("./file0", 0777 [pid 4473] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4476 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 ./strace-static-x86_64: Process 4476 attached [pid 4475] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4473] <... write resumed>) = 21 [pid 3618] close(3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4475] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4473] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 4476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4475] pipe2( [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4477 [pid 4476] <... prctl resumed>) = 0 [pid 4475] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4476] setpgid(0, 0 [pid 4475] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4478 ./strace-static-x86_64: Process 4477 attached [pid 4476] <... setpgid resumed>) = 0 [pid 4475] <... write resumed>) = 21 ./strace-static-x86_64: Process 4478 attached [pid 4477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4475] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4477] <... prctl resumed>) = 0 [pid 4476] <... openat resumed>) = 3 [pid 4478] <... prctl resumed>) = 0 [pid 4477] setpgid(0, 0 [pid 4476] write(3, "1000", 4 [pid 4478] setpgid(0, 0 [pid 4477] <... setpgid resumed>) = 0 [pid 4476] <... write resumed>) = 4 [pid 4478] <... setpgid resumed>) = 0 [pid 4477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4474] <... mount resumed>) = -1 EIO (Input/output error) [pid 4478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4477] <... openat resumed>) = 3 [pid 4474] exit_group(0 [pid 4478] <... openat resumed>) = 3 [pid 4477] write(3, "1000", 4 [pid 4476] close(3 [pid 4474] <... exit_group resumed>) = ? [pid 4478] write(3, "1000", 4 [pid 4477] <... write resumed>) = 4 [pid 4476] <... close resumed>) = 0 [pid 4474] +++ exited with 0 +++ [pid 4478] <... write resumed>) = 4 [pid 4477] close(3 [pid 4476] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4474, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4478] close(3 [pid 4477] <... close resumed>) = 0 [pid 4476] <... memfd_create resumed>) = 3 [pid 4478] <... close resumed>) = 0 [pid 4477] memfd_create("syzkaller", 0 [pid 4476] ftruncate(3, 0 [pid 4478] memfd_create("syzkaller", 0 [pid 4477] <... memfd_create resumed>) = 3 [pid 4476] <... ftruncate resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4478] <... memfd_create resumed>) = 3 [pid 4477] ftruncate(3, 0 [pid 4476] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4478] ftruncate(3, 0 [pid 4477] <... ftruncate resumed>) = 0 [pid 4476] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4478] <... ftruncate resumed>) = 0 [pid 4477] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4476] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4478] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4477] <... openat resumed>) = 4 [pid 4476] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4478] <... openat resumed>) = 4 [pid 4477] ioctl(4, LOOP_SET_FD, 3 [pid 4476] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 4478] ioctl(4, LOOP_SET_FD, 3 [pid 4477] <... ioctl resumed>) = 0 [pid 4476] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4478] <... ioctl resumed>) = 0 [pid 4477] mkdir("./file0", 0777 [pid 4478] mkdir("./file0", 0777 [pid 4477] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4479 [pid 4478] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4477] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4478] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4477] pipe2( [pid 4478] pipe2( [pid 4477] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4478] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4477] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4479 attached [pid 4478] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4477] <... write resumed>) = 21 [pid 4476] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4479] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4478] <... write resumed>) = 21 [pid 4477] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4476] pipe2( [pid 4479] <... prctl resumed>) = 0 [pid 4478] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4476] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4479] setpgid(0, 0 [pid 4476] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4479] <... setpgid resumed>) = 0 [pid 4476] <... write resumed>) = 21 [pid 4479] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4476] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4473] <... mount resumed>) = -1 EIO (Input/output error) [pid 4479] <... openat resumed>) = 3 [pid 4479] write(3, "1000", 4) = 4 [pid 4479] close(3) = 0 [pid 4479] memfd_create("syzkaller", 0) = 3 [pid 4479] ftruncate(3, 0) = 0 [pid 4479] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4479] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4479] mkdir("./file0", 0777 [pid 4473] exit_group(0 [pid 4479] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4473] <... exit_group resumed>) = ? [pid 4479] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4479] pipe2([5, 6], 0) = 0 [pid 4473] +++ exited with 0 +++ [pid 4479] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4473, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4479] <... write resumed>) = 21 [pid 4475] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4479] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4475] exit_group(0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4475] <... exit_group resumed>) = ? [pid 4475] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4475, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4478] <... mount resumed>) = -1 EIO (Input/output error) [pid 4478] exit_group(0) = ? [pid 4478] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4478, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4480 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4481 ./strace-static-x86_64: Process 4480 attached [pid 4480] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4480] setpgid(0, 0) = 0 [pid 4480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4477] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4481 attached [pid 4480] <... openat resumed>) = 3 [pid 4477] exit_group(0 [pid 4481] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4480] write(3, "1000", 4 [pid 4477] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4481] <... prctl resumed>) = 0 [pid 4480] <... write resumed>) = 4 [pid 3618] close(3 [pid 4481] setpgid(0, 0 [pid 4480] close(3 [pid 4477] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 4481] <... setpgid resumed>) = 0 [pid 4480] <... close resumed>) = 0 [pid 4476] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4480] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4477, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4480] <... memfd_create resumed>) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4482 [pid 4481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4481] <... openat resumed>) = 3 [pid 4480] ftruncate(3, 0 [pid 4476] exit_group(0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4481] write(3, "1000", 4 [pid 4480] <... ftruncate resumed>) = 0 [pid 4476] <... exit_group resumed>) = ? [pid 4481] <... write resumed>) = 4 [pid 4480] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4481] close(3 [pid 4480] <... openat resumed>) = 4 [pid 4476] +++ exited with 0 +++ [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4481] <... close resumed>) = 0 [pid 4480] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4476, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] <... openat resumed>) = 3 [pid 4481] memfd_create("syzkaller", 0 [pid 4480] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4482 attached [pid 4481] <... memfd_create resumed>) = 3 [pid 4480] mkdir("./file0", 0777 [pid 4482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4481] ftruncate(3, 0 [pid 4480] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4482] <... prctl resumed>) = 0 [pid 4481] <... ftruncate resumed>) = 0 [pid 4480] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 4482] setpgid(0, 0 [pid 4481] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4480] pipe2( [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4482] <... setpgid resumed>) = 0 [pid 4481] <... openat resumed>) = 4 [pid 4480] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4481] ioctl(4, LOOP_SET_FD, 3 [pid 4480] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4481] <... ioctl resumed>) = 0 [pid 4480] <... write resumed>) = 21 [pid 4482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4481] mkdir("./file0", 0777 [pid 4480] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4482] <... openat resumed>) = 3 [pid 4481] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4482] write(3, "1000", 4 [pid 4481] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4479] <... mount resumed>) = -1 EIO (Input/output error) [pid 4482] <... write resumed>) = 4 [pid 4481] pipe2( [pid 4479] exit_group(0 [pid 4482] close(3 [pid 4481] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4479] <... exit_group resumed>) = ? [pid 4482] <... close resumed>) = 0 [pid 4481] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4479] +++ exited with 0 +++ [pid 4482] memfd_create("syzkaller", 0 [pid 4481] <... write resumed>) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4479, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4482] <... memfd_create resumed>) = 3 [pid 4481] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4482] ftruncate(3, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4482] <... ftruncate resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 4482] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4482] <... openat resumed>) = 4 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4482] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4483 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4484 [pid 4482] <... ioctl resumed>) = 0 [pid 4480] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4483 attached [pid 4483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4483] setpgid(0, 0) = 0 [pid 4483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4483] write(3, "1000", 4) = 4 [pid 4482] mkdir("./file0", 0777 [pid 4483] close(3 [pid 4480] exit_group(0 [pid 4482] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4484 attached [pid 4483] <... close resumed>) = 0 [pid 4482] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4480] <... exit_group resumed>) = ? [pid 4483] memfd_create("syzkaller", 0 [pid 4482] pipe2( [pid 4484] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4483] <... memfd_create resumed>) = 3 [pid 4482] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4480] +++ exited with 0 +++ [pid 4484] <... prctl resumed>) = 0 [pid 4483] ftruncate(3, 0 [pid 4482] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4480, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4484] setpgid(0, 0 [pid 4483] <... ftruncate resumed>) = 0 [pid 4482] <... write resumed>) = 21 [pid 4481] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4484] <... setpgid resumed>) = 0 [pid 4483] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4482] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... restart_syscall resumed>) = 0 [pid 4484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4483] <... openat resumed>) = 4 [pid 4481] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4484] <... openat resumed>) = 3 [pid 4483] ioctl(4, LOOP_SET_FD, 3 [pid 3617] close(3 [pid 4483] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4484] write(3, "1000", 4 [pid 3617] <... close resumed>) = 0 [pid 4484] <... write resumed>) = 4 [pid 4483] mkdir("./file0", 0777 [pid 4481] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4484] close(3 [pid 4483] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4484] <... close resumed>) = 0 [pid 4483] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4481] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4485 [pid 4483] pipe2([5, 6], 0) = 0 [pid 4483] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4481, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4484] memfd_create("syzkaller", 0 [pid 4483] <... write resumed>) = 21 [pid 4484] <... memfd_create resumed>) = 3 [pid 4483] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4484] ftruncate(3, 0./strace-static-x86_64: Process 4485 attached ) = 0 [pid 4485] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4484] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4485] <... prctl resumed>) = 0 [pid 4484] <... openat resumed>) = 4 [pid 4485] setpgid(0, 0 [pid 4484] ioctl(4, LOOP_SET_FD, 3 [pid 4485] <... setpgid resumed>) = 0 [pid 4484] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4485] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4484] mkdir("./file0", 0777 [pid 4482] <... mount resumed>) = -1 EIO (Input/output error) [pid 4485] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 4485] write(3, "1000", 4 [pid 4484] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4482] exit_group(0 [pid 4485] <... write resumed>) = 4 [pid 4485] close(3) = 0 [pid 4485] memfd_create("syzkaller", 0) = 3 [pid 4485] ftruncate(3, 0) = 0 [pid 4485] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4485] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4485] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4485] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4485] pipe2([5, 6], 0) = 0 [pid 4484] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4483] <... mount resumed>) = -1 EIO (Input/output error) [pid 4482] <... exit_group resumed>) = ? [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4485] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... ioctl resumed>) = 0 [pid 4485] <... write resumed>) = 21 [pid 3619] close(3 [pid 4485] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... close resumed>) = 0 [pid 4484] pipe2( [pid 4483] exit_group(0 [pid 4482] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... ioctl resumed>) = 0 [pid 4484] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4483] <... exit_group resumed>) = ? [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4482, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3 [pid 4484] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4486 [pid 3618] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4486 attached [pid 4484] <... write resumed>) = 21 [pid 4483] +++ exited with 0 +++ [pid 3618] <... restart_syscall resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4486] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4484] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4483, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4486] <... prctl resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4487 [pid 4486] setpgid(0, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4486] <... setpgid resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4486] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 4486] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4488 ./strace-static-x86_64: Process 4487 attached [pid 4486] write(3, "1000", 4 [pid 4485] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4488 attached [pid 4487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4486] <... write resumed>) = 4 [pid 4485] exit_group(0 [pid 4488] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4487] <... prctl resumed>) = 0 [pid 4486] close(3 [pid 4485] <... exit_group resumed>) = ? [pid 4487] setpgid(0, 0 [pid 4486] <... close resumed>) = 0 [pid 4488] <... prctl resumed>) = 0 [pid 4487] <... setpgid resumed>) = 0 [pid 4486] memfd_create("syzkaller", 0 [pid 4485] +++ exited with 0 +++ [pid 4488] setpgid(0, 0 [pid 4487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4486] <... memfd_create resumed>) = 3 [pid 4488] <... setpgid resumed>) = 0 [pid 4487] <... openat resumed>) = 3 [pid 4486] ftruncate(3, 0 [pid 4484] <... mount resumed>) = -1 EIO (Input/output error) [pid 4488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4487] write(3, "1000", 4 [pid 4486] <... ftruncate resumed>) = 0 [pid 4484] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4485, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4488] <... openat resumed>) = 3 [pid 4487] <... write resumed>) = 4 [pid 4486] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4484] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4488] write(3, "1000", 4 [pid 4487] close(3 [pid 4486] <... openat resumed>) = 4 [pid 4484] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4488] <... write resumed>) = 4 [pid 4487] <... close resumed>) = 0 [pid 4486] ioctl(4, LOOP_SET_FD, 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4484, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4488] close(3 [pid 4487] memfd_create("syzkaller", 0 [pid 4486] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4489 attached [pid 4488] <... close resumed>) = 0 [pid 4487] <... memfd_create resumed>) = 3 [pid 4486] mkdir("./file0", 0777 [pid 4488] memfd_create("syzkaller", 0 [pid 4486] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4487] ftruncate(3, 0 [pid 4489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4488] <... memfd_create resumed>) = 3 [pid 4486] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4489 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4488] ftruncate(3, 0 [pid 4486] pipe2( [pid 4488] <... ftruncate resumed>) = 0 [pid 4486] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4488] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4486] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4488] <... openat resumed>) = 4 [pid 4486] <... write resumed>) = 21 [pid 4488] ioctl(4, LOOP_SET_FD, 3 [pid 4486] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4489] <... prctl resumed>) = 0 [pid 4488] <... ioctl resumed>) = 0 [pid 4487] <... ftruncate resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4488] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4488] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4488] pipe2([5, 6], 0) = 0 [pid 4488] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4488] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4489] setpgid(0, 0 [pid 4487] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4489] <... setpgid resumed>) = 0 [pid 4487] <... openat resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4487] ioctl(4, LOOP_SET_FD, 3 [pid 3617] close(3 [pid 3616] <... openat resumed>) = 3 [pid 4489] <... openat resumed>) = 3 [pid 4487] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... ioctl resumed>) = 0 [pid 4489] write(3, "1000", 4 [pid 4487] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4490 [pid 3616] close(3 [pid 4489] <... write resumed>) = 4 [pid 4487] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... close resumed>) = 0 [pid 4489] close(3 [pid 4487] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4489] <... close resumed>) = 0 [pid 4487] pipe2(./strace-static-x86_64: Process 4490 attached [pid 4489] memfd_create("syzkaller", 0 [pid 4487] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4491 [pid 4489] <... memfd_create resumed>) = 3 [pid 4487] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4489] ftruncate(3, 0 [pid 4487] <... write resumed>) = 21 [pid 4489] <... ftruncate resumed>) = 0 [pid 4487] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4489] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4491 attached [pid 4491] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4489] <... openat resumed>) = 4 [pid 4491] setpgid(0, 0 [pid 4489] ioctl(4, LOOP_SET_FD, 3 [pid 4491] <... setpgid resumed>) = 0 [pid 4491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4491] write(3, "1000", 4) = 4 [pid 4491] close(3) = 0 [pid 4491] memfd_create("syzkaller", 0) = 3 [pid 4491] ftruncate(3, 0 [pid 4490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4489] <... ioctl resumed>) = 0 [pid 4486] <... mount resumed>) = -1 EIO (Input/output error) [pid 4491] <... ftruncate resumed>) = 0 [pid 4490] <... prctl resumed>) = 0 [pid 4489] mkdir("./file0", 0777 [pid 4486] exit_group(0 [pid 4491] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4490] setpgid(0, 0 [pid 4489] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4486] <... exit_group resumed>) = ? [pid 4490] <... setpgid resumed>) = 0 [pid 4489] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4491] <... openat resumed>) = 4 [pid 4490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4489] pipe2( [pid 4486] +++ exited with 0 +++ [pid 4491] ioctl(4, LOOP_SET_FD, 3 [pid 4490] <... openat resumed>) = 3 [pid 4489] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4488] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4486, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4491] <... ioctl resumed>) = 0 [pid 4490] write(3, "1000", 4 [pid 4489] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4491] mkdir("./file0", 0777 [pid 4490] <... write resumed>) = 4 [pid 4489] <... write resumed>) = 21 [pid 4488] exit_group(0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4491] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4490] close(3 [pid 4489] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4488] <... exit_group resumed>) = ? [pid 4491] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4490] <... close resumed>) = 0 [pid 4491] pipe2( [pid 4490] memfd_create("syzkaller", 0 [pid 4488] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4491] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4490] <... memfd_create resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4488, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4490] ftruncate(3, 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4491] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4490] <... ftruncate resumed>) = 0 [pid 4491] <... write resumed>) = 21 [pid 4490] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4491] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4490] <... openat resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4490] ioctl(4, LOOP_SET_FD, 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4490] <... ioctl resumed>) = 0 [pid 4490] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4490] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4490] pipe2([5, 6], 0) = 0 [pid 4490] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4490] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4487] <... mount resumed>) = -1 EIO (Input/output error) [pid 4487] exit_group(0) = ? [pid 4487] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4487, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4492 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4493 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4492 attached , child_tidptr=0x5555570a1690) = 4495 ./strace-static-x86_64: Process 4495 attached [pid 4492] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4493 attached [pid 4495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4492] <... prctl resumed>) = 0 [pid 4489] <... mount resumed>) = -1 EIO (Input/output error) [pid 4493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4493] setpgid(0, 0) = 0 [pid 4493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4493] write(3, "1000", 4) = 4 [pid 4493] close(3) = 0 [pid 4493] memfd_create("syzkaller", 0) = 3 [pid 4495] <... prctl resumed>) = 0 [pid 4493] ftruncate(3, 0 [pid 4492] setpgid(0, 0 [pid 4489] exit_group(0 [pid 4495] setpgid(0, 0 [pid 4493] <... ftruncate resumed>) = 0 [pid 4492] <... setpgid resumed>) = 0 [pid 4489] <... exit_group resumed>) = ? [pid 4495] <... setpgid resumed>) = 0 [pid 4493] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4493] <... openat resumed>) = 4 [pid 4492] <... openat resumed>) = 3 [pid 4489] +++ exited with 0 +++ [pid 4495] <... openat resumed>) = 3 [pid 4493] ioctl(4, LOOP_SET_FD, 3 [pid 4492] write(3, "1000", 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4489, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4495] write(3, "1000", 4 [pid 4493] <... ioctl resumed>) = 0 [pid 4492] <... write resumed>) = 4 [pid 4495] <... write resumed>) = 4 [pid 4493] mkdir("./file0", 0777 [pid 4492] close(3 [pid 4491] <... mount resumed>) = -1 EIO (Input/output error) [pid 4495] close(3 [pid 4493] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4492] <... close resumed>) = 0 [pid 4491] exit_group(0 [pid 4495] <... close resumed>) = 0 [pid 4493] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4492] memfd_create("syzkaller", 0 [pid 4491] <... exit_group resumed>) = ? [pid 4495] memfd_create("syzkaller", 0 [pid 4493] pipe2( [pid 4492] <... memfd_create resumed>) = 3 [pid 4491] +++ exited with 0 +++ [pid 4495] <... memfd_create resumed>) = 3 [pid 4493] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4492] ftruncate(3, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4491, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4495] ftruncate(3, 0 [pid 4493] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4492] <... ftruncate resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4495] <... ftruncate resumed>) = 0 [pid 4493] <... write resumed>) = 21 [pid 4492] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4495] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4493] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4492] <... openat resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4495] <... openat resumed>) = 4 [pid 4492] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... openat resumed>) = 3 [pid 4495] ioctl(4, LOOP_SET_FD, 3 [pid 4492] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4495] <... ioctl resumed>) = 0 [pid 4492] mkdir("./file0", 0777 [pid 4495] mkdir("./file0", 0777 [pid 4492] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4495] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4492] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4495] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4492] pipe2( [pid 4495] pipe2([5, 6], 0) = 0 [pid 4492] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4495] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4492] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4495] <... write resumed>) = 21 [pid 4492] <... write resumed>) = 21 [pid 4490] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4495] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4492] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4490] exit_group(0 [pid 3620] close(3 [pid 3616] close(3 [pid 4490] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4490] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4496 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4490, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4497 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4497 attached ./strace-static-x86_64: Process 4496 attached [pid 4497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4497] <... prctl resumed>) = 0 [pid 4496] <... prctl resumed>) = 0 [pid 4497] setpgid(0, 0 [pid 4496] setpgid(0, 0 [pid 4493] <... mount resumed>) = -1 EIO (Input/output error) [pid 4497] <... setpgid resumed>) = 0 [pid 4493] exit_group(0 [pid 4497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4493] <... exit_group resumed>) = ? [pid 4497] <... openat resumed>) = 3 [pid 4493] +++ exited with 0 +++ [pid 4497] write(3, "1000", 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4493, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4497] <... write resumed>) = 4 [pid 4497] close(3) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4497] memfd_create("syzkaller", 0 [pid 3618] <... openat resumed>) = 3 [pid 4497] <... memfd_create resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 4497] ftruncate(3, 0 [pid 4496] <... setpgid resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4497] <... ftruncate resumed>) = 0 [pid 4496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] close(3 [pid 3617] <... close resumed>) = 0 [pid 4497] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4496] <... openat resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4497] <... openat resumed>) = 4 [pid 4496] write(3, "1000", 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4497] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4498 [pid 4497] <... ioctl resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4499 [pid 4497] mkdir("./file0", 0777 [pid 4496] <... write resumed>) = 4 [pid 4497] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4496] close(3./strace-static-x86_64: Process 4498 attached [pid 4497] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4496] <... close resumed>) = 0 [pid 4498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4497] pipe2( [pid 4496] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4499 attached [pid 4498] <... prctl resumed>) = 0 [pid 4497] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4496] <... memfd_create resumed>) = 3 [pid 4498] setpgid(0, 0 [pid 4497] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4498] <... setpgid resumed>) = 0 [pid 4497] <... write resumed>) = 21 [pid 4498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4497] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4496] ftruncate(3, 0 [pid 4499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4498] <... openat resumed>) = 3 [pid 4496] <... ftruncate resumed>) = 0 [pid 4492] <... mount resumed>) = -1 EIO (Input/output error) [pid 4499] <... prctl resumed>) = 0 [pid 4498] write(3, "1000", 4 [pid 4496] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4492] exit_group(0 [pid 4499] setpgid(0, 0 [pid 4498] <... write resumed>) = 4 [pid 4496] <... openat resumed>) = 4 [pid 4492] <... exit_group resumed>) = ? [pid 4499] <... setpgid resumed>) = 0 [pid 4498] close(3 [pid 4496] ioctl(4, LOOP_SET_FD, 3 [pid 4492] +++ exited with 0 +++ [pid 4499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4498] <... close resumed>) = 0 [pid 4496] <... ioctl resumed>) = 0 [pid 4495] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4492, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4499] <... openat resumed>) = 3 [pid 4498] memfd_create("syzkaller", 0 [pid 4496] mkdir("./file0", 0777 [pid 4495] exit_group(0 [pid 4499] write(3, "1000", 4 [pid 4498] <... memfd_create resumed>) = 3 [pid 4496] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4495] <... exit_group resumed>) = ? [pid 4499] <... write resumed>) = 4 [pid 4498] ftruncate(3, 0 [pid 4496] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4499] close(3 [pid 4498] <... ftruncate resumed>) = 0 [pid 4496] pipe2( [pid 4495] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 4499] <... close resumed>) = 0 [pid 4498] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4496] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4495, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4499] memfd_create("syzkaller", 0 [pid 4498] <... openat resumed>) = 4 [pid 4496] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4499] <... memfd_create resumed>) = 3 [pid 4498] ioctl(4, LOOP_SET_FD, 3 [pid 4496] <... write resumed>) = 21 [pid 4499] ftruncate(3, 0 [pid 4498] <... ioctl resumed>) = 0 [pid 4496] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4499] <... ftruncate resumed>) = 0 [pid 4498] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4499] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4498] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4499] <... openat resumed>) = 4 [pid 4498] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... openat resumed>) = 3 [pid 4499] ioctl(4, LOOP_SET_FD, 3 [pid 4498] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4499] <... ioctl resumed>) = 0 [pid 4498] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 4499] mkdir("./file0", 0777 [pid 4498] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4499] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4498] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] close(3 [pid 4499] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4498] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... close resumed>) = 0 [pid 4499] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4500 [pid 4499] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4497] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4500 attached [pid 4499] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4497] exit_group(0 [pid 4500] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4499] <... write resumed>) = 21 [pid 4497] <... exit_group resumed>) = ? [pid 4500] <... prctl resumed>) = 0 [pid 4499] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4501 [pid 4500] setpgid(0, 0 [pid 4497] +++ exited with 0 +++ [pid 4500] <... setpgid resumed>) = 0 [pid 4500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4497, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4501 attached [pid 4500] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4501] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4500] write(3, "1000", 4 [pid 3616] <... openat resumed>) = 3 [pid 4500] <... write resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4501] <... prctl resumed>) = 0 [pid 4500] close(3 [pid 4498] <... mount resumed>) = -1 EIO (Input/output error) [pid 4500] <... close resumed>) = 0 [pid 4498] exit_group(0 [pid 4500] memfd_create("syzkaller", 0 [pid 4498] <... exit_group resumed>) = ? [pid 4500] <... memfd_create resumed>) = 3 [pid 4498] +++ exited with 0 +++ [pid 4500] ftruncate(3, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4498, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4500] <... ftruncate resumed>) = 0 [pid 4500] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4500] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... openat resumed>) = 3 [pid 4501] setpgid(0, 0 [pid 4500] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4500] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4500] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4500] pipe2([5, 6], 0) = 0 [pid 4500] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4501] <... setpgid resumed>) = 0 [pid 4500] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4501] write(3, "1000", 4) = 4 [pid 4501] close(3) = 0 [pid 4501] memfd_create("syzkaller", 0) = 3 [pid 4501] ftruncate(3, 0) = 0 [pid 4501] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4501] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4496] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4501] mkdir("./file0", 0777 [pid 4496] exit_group(0 [pid 3617] close(3 [pid 3616] close(3 [pid 4501] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4496] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4501] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4501] pipe2( [pid 4496] +++ exited with 0 +++ [pid 4501] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4502 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4503 [pid 4501] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4496, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4502 attached [pid 4501] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4501] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4503 attached [pid 4502] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4503] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4503] setpgid(0, 0) = 0 [pid 4503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4503] write(3, "1000", 4) = 4 [pid 4503] close(3 [pid 3620] <... ioctl resumed>) = 0 [pid 4503] <... close resumed>) = 0 [pid 4502] setpgid(0, 0 [pid 4499] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4503] memfd_create("syzkaller", 0 [pid 4502] <... setpgid resumed>) = 0 [pid 4499] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 4503] <... memfd_create resumed>) = 3 [pid 4502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4499] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4503] ftruncate(3, 0) = 0 [pid 4503] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4503] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4503] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4503] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4502] <... openat resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4504 [pid 4503] pipe2( [pid 4502] write(3, "1000", 4 [pid 4499] +++ exited with 0 +++ [pid 4503] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4502] <... write resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4499, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4504 attached [pid 4503] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4502] close(3 [pid 4500] <... mount resumed>) = -1 EIO (Input/output error) [pid 4504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4503] <... write resumed>) = 21 [pid 4504] <... prctl resumed>) = 0 [pid 4503] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4502] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4504] setpgid(0, 0 [pid 4502] memfd_create("syzkaller", 0 [pid 3618] <... openat resumed>) = 3 [pid 4504] <... setpgid resumed>) = 0 [pid 4502] <... memfd_create resumed>) = 3 [pid 4500] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4502] ftruncate(3, 0 [pid 4500] <... exit_group resumed>) = ? [pid 4504] <... openat resumed>) = 3 [pid 4502] <... ftruncate resumed>) = 0 [pid 4504] write(3, "1000", 4 [pid 4502] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4500] +++ exited with 0 +++ [pid 4504] <... write resumed>) = 4 [pid 4502] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4500, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4504] close(3 [pid 4502] ioctl(4, LOOP_SET_FD, 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4504] <... close resumed>) = 0 [pid 4502] <... ioctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4504] memfd_create("syzkaller", 0) = 3 [pid 4504] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4504] <... ftruncate resumed>) = 0 [pid 4502] mkdir("./file0", 0777 [pid 3619] <... openat resumed>) = 3 [pid 4504] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4502] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4504] <... openat resumed>) = 4 [pid 4502] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4504] ioctl(4, LOOP_SET_FD, 3 [pid 4502] pipe2( [pid 4504] <... ioctl resumed>) = 0 [pid 4502] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4504] mkdir("./file0", 0777 [pid 4502] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 4504] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4502] <... write resumed>) = 21 [pid 3618] <... close resumed>) = 0 [pid 4504] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4502] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4504] pipe2( [pid 4501] <... mount resumed>) = -1 EIO (Input/output error) [pid 4501] exit_group(0) = ? [pid 4501] +++ exited with 0 +++ [pid 3619] <... ioctl resumed>) = 0 [pid 4504] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4505 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4501, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4504] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4504] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... restart_syscall resumed>) = 0 [pid 4504] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4506 ./strace-static-x86_64: Process 4506 attached ./strace-static-x86_64: Process 4505 attached [pid 4506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4506] setpgid(0, 0) = 0 [pid 4506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4505] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4506] write(3, "1000", 4) = 4 [pid 4505] <... prctl resumed>) = 0 [pid 4506] close(3) = 0 [pid 4505] setpgid(0, 0) = 0 [pid 4506] memfd_create("syzkaller", 0) = 3 [pid 4505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4506] ftruncate(3, 0 [pid 4505] <... openat resumed>) = 3 [pid 4503] <... mount resumed>) = -1 EIO (Input/output error) [pid 4506] <... ftruncate resumed>) = 0 [pid 4505] write(3, "1000", 4 [pid 4503] exit_group(0 [pid 4506] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4505] <... write resumed>) = 4 [pid 4503] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4506] <... openat resumed>) = 4 [pid 4505] close(3 [pid 3615] close(3 [pid 4506] ioctl(4, LOOP_SET_FD, 3 [pid 4505] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4505] memfd_create("syzkaller", 0) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4507 [pid 4505] ftruncate(3, 0) = 0 [pid 4505] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4507 attached ) = 4 [pid 4503] +++ exited with 0 +++ [pid 4505] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4503, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4506] <... ioctl resumed>) = 0 [pid 4505] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4506] mkdir("./file0", 0777 [pid 4505] mkdir("./file0", 0777 [pid 4506] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4505] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 4507] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4506] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4505] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4507] <... prctl resumed>) = 0 [pid 4506] pipe2( [pid 4505] pipe2( [pid 4507] setpgid(0, 0 [pid 4506] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4505] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4507] <... setpgid resumed>) = 0 [pid 4506] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4505] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4506] <... write resumed>) = 21 [pid 4505] <... write resumed>) = 21 [pid 4507] <... openat resumed>) = 3 [pid 4506] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4505] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4507] write(3, "1000", 4 [pid 4502] <... mount resumed>) = -1 EIO (Input/output error) [pid 4507] <... write resumed>) = 4 [pid 4502] exit_group(0 [pid 4507] close(3 [pid 4502] <... exit_group resumed>) = ? [pid 4507] <... close resumed>) = 0 [pid 4502] +++ exited with 0 +++ [pid 4507] memfd_create("syzkaller", 0) = 3 [pid 4507] ftruncate(3, 0) = 0 [pid 4507] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4507] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4507] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4507] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4507] pipe2([5, 6], 0) = 0 [pid 4507] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4507] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4502, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4504] <... mount resumed>) = -1 EIO (Input/output error) [pid 4504] exit_group(0) = ? [pid 4504] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4504, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4508 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4509 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4508 attached , child_tidptr=0x5555570a1690) = 4510 [pid 4508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 4510 attached ./strace-static-x86_64: Process 4509 attached [pid 4508] setpgid(0, 0) = 0 [pid 4508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4509] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4508] <... openat resumed>) = 3 [pid 4509] setpgid(0, 0 [pid 4508] write(3, "1000", 4 [pid 4510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4509] <... setpgid resumed>) = 0 [pid 4508] <... write resumed>) = 4 [pid 4510] <... prctl resumed>) = 0 [pid 4510] setpgid(0, 0 [pid 4509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4508] close(3 [pid 4510] <... setpgid resumed>) = 0 [pid 4510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4510] write(3, "1000", 4) = 4 [pid 4510] close(3) = 0 [pid 4510] memfd_create("syzkaller", 0) = 3 [pid 4510] ftruncate(3, 0) = 0 [pid 4510] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4510] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4509] <... openat resumed>) = 3 [pid 4508] <... close resumed>) = 0 [pid 4507] <... mount resumed>) = -1 EIO (Input/output error) [pid 4505] <... mount resumed>) = -1 EIO (Input/output error) [pid 4509] write(3, "1000", 4 [pid 4508] memfd_create("syzkaller", 0 [pid 4507] exit_group(0 [pid 4505] exit_group(0 [pid 4510] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4510] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4510] pipe2([5, 6], 0) = 0 [pid 4510] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4510] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4509] <... write resumed>) = 4 [pid 4507] <... exit_group resumed>) = ? [pid 4505] <... exit_group resumed>) = ? [pid 4509] close(3 [pid 4508] <... memfd_create resumed>) = 3 [pid 4509] <... close resumed>) = 0 [pid 4508] ftruncate(3, 0 [pid 4507] +++ exited with 0 +++ [pid 4505] +++ exited with 0 +++ [pid 4509] memfd_create("syzkaller", 0 [pid 4508] <... ftruncate resumed>) = 0 [pid 4506] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4507, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4509] <... memfd_create resumed>) = 3 [pid 4508] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4506] exit_group(0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4505, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4509] ftruncate(3, 0 [pid 4508] <... openat resumed>) = 4 [pid 4506] <... exit_group resumed>) = ? [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4509] <... ftruncate resumed>) = 0 [pid 4508] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4509] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4508] <... ioctl resumed>) = 0 [pid 4506] +++ exited with 0 +++ [pid 4509] <... openat resumed>) = 4 [pid 4508] mkdir("./file0", 0777 [pid 3615] <... openat resumed>) = 3 [pid 4508] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4506, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4509] ioctl(4, LOOP_SET_FD, 3 [pid 4508] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4509] <... ioctl resumed>) = 0 [pid 4508] pipe2( [pid 3619] <... restart_syscall resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4510] <... mount resumed>) = -1 EIO (Input/output error) [pid 4509] mkdir("./file0", 0777 [pid 4508] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4510] exit_group(0) = ? [pid 4510] +++ exited with 0 +++ [pid 4509] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4508] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4509] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4508] <... write resumed>) = 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4509] pipe2( [pid 4508] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4510, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4509] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... openat resumed>) = 3 [pid 4509] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4509] <... write resumed>) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4509] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] close(3 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] <... close resumed>) = 0 [pid 3620] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4513 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4512 ./strace-static-x86_64: Process 4513 attached [pid 4513] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4513] setpgid(0, 0) = 0 [pid 4513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4512 attached ) = 3 [pid 4512] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4513] write(3, "1000", 4) = 4 [pid 4513] close(3) = 0 [pid 4513] memfd_create("syzkaller", 0) = 3 [pid 4513] ftruncate(3, 0) = 0 [pid 4513] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4513] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4513] ioctl(4, LOOP_CLR_FD) = 0 [pid 4512] <... prctl resumed>) = 0 [pid 4512] setpgid(0, 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4513] ioctl(4, LOOP_SET_FD, 3 [pid 3618] close(3 [pid 3615] close(3 [pid 4513] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 4512] <... setpgid resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4513] close(4) = 0 [pid 4512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4513] close(3) = 0 [pid 4513] pipe2([3, 4], 0) = 0 [pid 4513] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4513] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 4512] <... openat resumed>) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4514 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4515 [pid 4512] write(3, "1000", 4) = 4 [pid 4512] close(3./strace-static-x86_64: Process 4515 attached [pid 4515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4512] <... close resumed>) = 0 [pid 4515] <... prctl resumed>) = 0 [pid 4515] setpgid(0, 0 [pid 4512] memfd_create("syzkaller", 0 [pid 4515] <... setpgid resumed>) = 0 [pid 4515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4512] <... memfd_create resumed>) = 3 [pid 4515] <... openat resumed>) = 3 [pid 4512] ftruncate(3, 0 [pid 4515] write(3, "1000", 4 [pid 4512] <... ftruncate resumed>) = 0 [pid 4515] <... write resumed>) = 4 [pid 4515] close(3 [pid 4512] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4515] <... close resumed>) = 0 [pid 4515] memfd_create("syzkaller", 0 [pid 4512] <... openat resumed>) = 4 [pid 4515] <... memfd_create resumed>) = 3 [pid 4515] ftruncate(3, 0 [pid 4512] ioctl(4, LOOP_SET_FD, 3 [pid 4515] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4514 attached [pid 4512] <... ioctl resumed>) = 0 [pid 4512] mkdir("./file0", 0777 [pid 4515] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4512] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4515] <... openat resumed>) = 4 [pid 4514] <... prctl resumed>) = 0 [pid 4512] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4515] ioctl(4, LOOP_SET_FD, 3 [pid 4514] setpgid(0, 0 [pid 4512] pipe2( [pid 4515] <... ioctl resumed>) = 0 [pid 4514] <... setpgid resumed>) = 0 [pid 4512] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4515] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4512] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4515] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4514] <... openat resumed>) = 3 [pid 4512] <... write resumed>) = 21 [pid 4515] pipe2( [pid 4514] write(3, "1000", 4 [pid 4512] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4515] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4514] <... write resumed>) = 4 [pid 4515] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4514] close(3 [pid 4515] <... write resumed>) = 21 [pid 4514] <... close resumed>) = 0 [pid 4515] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4514] memfd_create("syzkaller", 0 [pid 4508] <... mount resumed>) = -1 EIO (Input/output error) [pid 4508] exit_group(0) = ? [pid 4508] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4508, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4514] <... memfd_create resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4514] ftruncate(3, 0) = 0 [pid 4514] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4514] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4514] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4514] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4514] pipe2([5, 6], 0) = 0 [pid 4514] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3616] <... ioctl resumed>) = 0 [pid 4514] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] close(3) = 0 [pid 4513] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4513] exit_group(0) = ? [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4516 [pid 4513] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4513, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4516 attached [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4516] <... prctl resumed>) = 0 [pid 3620] close(3 [pid 4516] setpgid(0, 0 [pid 3620] <... close resumed>) = 0 [pid 4516] <... setpgid resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4516] write(3, "1000", 4) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4517 [pid 4516] close(3./strace-static-x86_64: Process 4517 attached ) = 0 [pid 4517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4516] memfd_create("syzkaller", 0 [pid 4517] <... prctl resumed>) = 0 [pid 4516] <... memfd_create resumed>) = 3 [pid 4517] setpgid(0, 0 [pid 4516] ftruncate(3, 0 [pid 4517] <... setpgid resumed>) = 0 [pid 4516] <... ftruncate resumed>) = 0 [pid 4516] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4516] <... openat resumed>) = 4 [pid 4516] ioctl(4, LOOP_SET_FD, 3 [pid 4517] <... openat resumed>) = 3 [pid 4516] <... ioctl resumed>) = 0 [pid 4517] write(3, "1000", 4 [pid 4516] mkdir("./file0", 0777 [pid 4517] <... write resumed>) = 4 [pid 4516] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4517] close(3 [pid 4516] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4517] <... close resumed>) = 0 [pid 4516] pipe2( [pid 4515] <... mount resumed>) = -1 EIO (Input/output error) [pid 4517] memfd_create("syzkaller", 0 [pid 4516] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4515] exit_group(0 [pid 4517] <... memfd_create resumed>) = 3 [pid 4516] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4515] <... exit_group resumed>) = ? [pid 4517] ftruncate(3, 0 [pid 4516] <... write resumed>) = 21 [pid 4517] <... ftruncate resumed>) = 0 [pid 4516] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4515] +++ exited with 0 +++ [pid 4517] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4515, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4517] <... openat resumed>) = 4 [pid 4517] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4517] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4517] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4517] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... openat resumed>) = 3 [pid 4517] pipe2( [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4517] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4512] <... mount resumed>) = -1 EIO (Input/output error) [pid 4517] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4512] exit_group(0 [pid 4517] <... write resumed>) = 21 [pid 4512] <... exit_group resumed>) = ? [pid 4517] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4512] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4512, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 4509] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 4509] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4518 [pid 4509] <... exit_group resumed>) = ? [pid 4509] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4509, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4518 attached [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... restart_syscall resumed>) = 0 [pid 4518] <... prctl resumed>) = 0 [pid 4518] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... openat resumed>) = 3 [pid 4518] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4518] write(3, "1000", 4 [pid 3617] <... ioctl resumed>) = 0 [pid 4518] <... write resumed>) = 4 [pid 3617] close(3 [pid 4518] close(3 [pid 3617] <... close resumed>) = 0 [pid 4518] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4518] memfd_create("syzkaller", 0 [pid 4516] <... mount resumed>) = -1 EIO (Input/output error) [pid 4518] <... memfd_create resumed>) = 3 [pid 4516] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4519 [pid 4518] ftruncate(3, 0 [pid 4516] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4518] <... ftruncate resumed>) = 0 [pid 4516] +++ exited with 0 +++ [pid 4518] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3615] close(3 [pid 4518] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4516, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4518] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... close resumed>) = 0 [pid 4518] mkdir("./file0", 0777 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4518] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4518] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4518] pipe2([5, 6], 0) = 0 [pid 4518] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4520 [pid 4518] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4518] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 4520 attached [pid 3616] close(3 [pid 4520] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... close resumed>) = 0 [pid 4520] <... prctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4520] setpgid(0, 0) = 0 [pid 4520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 4519 attached [pid 4520] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4521 [pid 4517] <... mount resumed>) = -1 EIO (Input/output error) [pid 4520] <... write resumed>) = 4 [pid 4519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4517] exit_group(0./strace-static-x86_64: Process 4521 attached [pid 4520] close(3 [pid 4519] <... prctl resumed>) = 0 [pid 4517] <... exit_group resumed>) = ? [pid 4520] <... close resumed>) = 0 [pid 4520] memfd_create("syzkaller", 0) = 3 [pid 4520] ftruncate(3, 0 [pid 4517] +++ exited with 0 +++ [pid 4520] <... ftruncate resumed>) = 0 [pid 4520] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4517, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4520] <... openat resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4520] ioctl(4, LOOP_SET_FD, 3 [pid 4519] setpgid(0, 0 [pid 3620] <... openat resumed>) = 3 [pid 4521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4520] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4520] mkdir("./file0", 0777 [pid 4521] <... prctl resumed>) = 0 [pid 4520] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4519] <... setpgid resumed>) = 0 [pid 4520] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4520] pipe2([5, 6], 0) = 0 [pid 4520] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4520] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4521] setpgid(0, 0 [pid 4519] <... openat resumed>) = 3 [pid 4521] <... setpgid resumed>) = 0 [pid 4519] write(3, "1000", 4 [pid 4521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4519] <... write resumed>) = 4 [pid 4519] close(3) = 0 [pid 4519] memfd_create("syzkaller", 0 [pid 4521] <... openat resumed>) = 3 [pid 4519] <... memfd_create resumed>) = 3 [pid 4519] ftruncate(3, 0 [pid 4521] write(3, "1000", 4 [pid 4519] <... ftruncate resumed>) = 0 [pid 4519] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4521] <... write resumed>) = 4 [pid 4521] close(3 [pid 4519] <... openat resumed>) = 4 [pid 4519] ioctl(4, LOOP_SET_FD, 3 [pid 4521] <... close resumed>) = 0 [pid 4519] <... ioctl resumed>) = 0 [pid 4521] memfd_create("syzkaller", 0 [pid 4519] mkdir("./file0", 0777 [pid 4521] <... memfd_create resumed>) = 3 [pid 4519] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4521] ftruncate(3, 0 [pid 4519] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4519] pipe2( [pid 4521] <... ftruncate resumed>) = 0 [pid 4519] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4521] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4519] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4521] <... openat resumed>) = 4 [pid 4519] <... write resumed>) = 21 [pid 4521] ioctl(4, LOOP_SET_FD, 3 [pid 4519] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4521] <... ioctl resumed>) = 0 [pid 4521] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4521] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4521] pipe2([5, 6], 0) = 0 [pid 4521] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4521] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 4514] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4514] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 4514] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4514] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4514, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4522 ./strace-static-x86_64: Process 4522 attached [pid 4522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4522] setpgid(0, 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4522] write(3, "1000", 4) = 4 [pid 4522] close(3) = 0 [pid 4522] memfd_create("syzkaller", 0) = 3 [pid 4522] ftruncate(3, 0) = 0 [pid 4522] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4522] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4522] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4522] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4522] pipe2([5, 6], 0) = 0 [pid 4522] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4520] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4522] <... write resumed>) = 21 [pid 4520] exit_group(0 [pid 3618] close(3 [pid 4522] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4520] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4520] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4520, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4523 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4523 attached [pid 4518] <... mount resumed>) = -1 EIO (Input/output error) [pid 4518] exit_group(0) = ? [pid 4523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4518] +++ exited with 0 +++ [pid 4523] <... prctl resumed>) = 0 [pid 4523] setpgid(0, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4518, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4523] <... setpgid resumed>) = 0 [pid 4523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4523] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 4523] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 4523] <... write resumed>) = 4 [pid 3615] close(3 [pid 4523] close(3 [pid 3615] <... close resumed>) = 0 [pid 4523] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4523] memfd_create("syzkaller", 0) = 3 [pid 4523] ftruncate(3, 0) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4524 [pid 4523] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4523] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4523] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4523] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4523] pipe2([5, 6], 0) = 0 [pid 4523] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4519] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4524 attached [pid 4523] <... write resumed>) = 21 [pid 4519] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4524] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4523] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4519] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4524] <... prctl resumed>) = 0 [pid 4519] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 4524] setpgid(0, 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4524] <... setpgid resumed>) = 0 [pid 4524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4519, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4524] <... openat resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4525 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4524] write(3, "1000", 4 [pid 4521] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 4524] <... write resumed>) = 4 [pid 4521] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4524] close(3 [pid 4521] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4525 attached [pid 4524] <... close resumed>) = 0 [pid 4521] +++ exited with 0 +++ [pid 4525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4524] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4521, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4525] <... prctl resumed>) = 0 [pid 4525] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... openat resumed>) = 3 [pid 4525] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4525] write(3, "1000", 4 [pid 4524] <... memfd_create resumed>) = 3 [pid 4525] <... write resumed>) = 4 [pid 4525] close(3) = 0 [pid 4525] memfd_create("syzkaller", 0) = 3 [pid 4524] ftruncate(3, 0 [pid 4525] ftruncate(3, 0 [pid 4524] <... ftruncate resumed>) = 0 [pid 4522] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4525] <... ftruncate resumed>) = 0 [pid 4524] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4522] exit_group(0 [pid 3617] close(3 [pid 4525] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4524] <... openat resumed>) = 4 [pid 4522] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4525] <... openat resumed>) = 4 [pid 4524] ioctl(4, LOOP_SET_FD, 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4525] ioctl(4, LOOP_SET_FD, 3 [pid 4524] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4525] <... ioctl resumed>) = 0 [pid 4524] mkdir("./file0", 0777 [pid 4522] +++ exited with 0 +++ [pid 3616] close(3 [pid 4525] mkdir("./file0", 0777 [pid 4524] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4526 [pid 4525] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4524] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4522, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4525] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4524] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4527 attached ./strace-static-x86_64: Process 4526 attached [pid 4525] pipe2( [pid 4524] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4527 [pid 4527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4525] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4524] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4527] <... prctl resumed>) = 0 [pid 4526] <... prctl resumed>) = 0 [pid 4525] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4524] <... write resumed>) = 21 [pid 4523] <... mount resumed>) = -1 EIO (Input/output error) [pid 4527] setpgid(0, 0 [pid 4526] setpgid(0, 0 [pid 4525] <... write resumed>) = 21 [pid 4524] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4523] exit_group(0 [pid 4526] <... setpgid resumed>) = 0 [pid 4525] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4523] <... exit_group resumed>) = ? [pid 4527] <... setpgid resumed>) = 0 [pid 4526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4523] +++ exited with 0 +++ [pid 4527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4526] <... openat resumed>) = 3 [pid 4527] <... openat resumed>) = 3 [pid 4526] write(3, "1000", 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4523, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4527] write(3, "1000", 4 [pid 4526] <... write resumed>) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4527] <... write resumed>) = 4 [pid 4526] close(3 [pid 3618] <... openat resumed>) = 3 [pid 4527] close(3 [pid 4526] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3620] <... ioctl resumed>) = 0 [pid 4527] <... close resumed>) = 0 [pid 4526] memfd_create("syzkaller", 0 [pid 3620] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 4527] memfd_create("syzkaller", 0 [pid 4526] <... memfd_create resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 3618] close(3 [pid 4527] <... memfd_create resumed>) = 3 [pid 4526] ftruncate(3, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 4527] ftruncate(3, 0 [pid 4526] <... ftruncate resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4527] <... ftruncate resumed>) = 0 [pid 4526] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4528 [pid 4527] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4526] <... openat resumed>) = 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4529 [pid 4527] <... openat resumed>) = 4 [pid 4526] ioctl(4, LOOP_SET_FD, 3 [pid 4527] ioctl(4, LOOP_SET_FD, 3 [pid 4526] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4529 attached [pid 4526] mkdir("./file0", 0777 [pid 4529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4527] <... ioctl resumed>) = 0 [pid 4526] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4529] <... prctl resumed>) = 0 [pid 4527] mkdir("./file0", 0777 [pid 4526] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4528 attached [pid 4529] setpgid(0, 0 [pid 4527] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4526] pipe2( [pid 4525] <... mount resumed>) = -1 EIO (Input/output error) [pid 4529] <... setpgid resumed>) = 0 [pid 4527] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4526] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4525] exit_group(0 [pid 4529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4527] pipe2( [pid 4526] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4525] <... exit_group resumed>) = ? [pid 4529] <... openat resumed>) = 3 [pid 4527] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4526] <... write resumed>) = 21 [pid 4525] +++ exited with 0 +++ [pid 4529] write(3, "1000", 4 [pid 4528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4527] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4526] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4529] <... write resumed>) = 4 [pid 4528] <... prctl resumed>) = 0 [pid 4527] <... write resumed>) = 21 [pid 4529] close(3) = 0 [pid 4529] memfd_create("syzkaller", 0) = 3 [pid 4527] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4525, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4529] ftruncate(3, 0 [pid 4528] setpgid(0, 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4529] <... ftruncate resumed>) = 0 [pid 4528] <... setpgid resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4529] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4529] <... openat resumed>) = 4 [pid 4528] <... openat resumed>) = 3 [pid 4529] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4528] write(3, "1000", 4 [pid 4529] <... ioctl resumed>) = 0 [pid 4528] <... write resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 4529] mkdir("./file0", 0777 [pid 4528] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4529] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4528] <... close resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4529] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4528] memfd_create("syzkaller", 0 [pid 3619] close(3 [pid 4529] pipe2( [pid 4528] <... memfd_create resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 4529] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4528] ftruncate(3, 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4529] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4528] <... ftruncate resumed>) = 0 [pid 4529] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4528] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4530 [pid 4528] <... openat resumed>) = 4 [pid 4528] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4530 attached ) = 0 [pid 4528] mkdir("./file0", 0777 [pid 4530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4528] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4530] <... prctl resumed>) = 0 [pid 4528] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4530] setpgid(0, 0 [pid 4528] pipe2( [pid 4530] <... setpgid resumed>) = 0 [pid 4528] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4528] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4530] <... openat resumed>) = 3 [pid 4528] <... write resumed>) = 21 [pid 4530] write(3, "1000", 4 [pid 4528] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4530] <... write resumed>) = 4 [pid 4530] close(3) = 0 [pid 4530] memfd_create("syzkaller", 0) = 3 [pid 4530] ftruncate(3, 0) = 0 [pid 4530] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4530] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4530] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4524] <... mount resumed>) = -1 EIO (Input/output error) [pid 4530] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4524] exit_group(0 [pid 4530] pipe2( [pid 4524] <... exit_group resumed>) = ? [pid 4530] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4530] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4524] +++ exited with 0 +++ [pid 4530] <... write resumed>) = 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4524, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4530] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4527] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4531 [pid 4527] exit_group(0./strace-static-x86_64: Process 4531 attached ) = ? [pid 4531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4527] +++ exited with 0 +++ [pid 4531] <... prctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4527, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4531] setpgid(0, 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4531] <... setpgid resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4531] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 4531] <... write resumed>) = 4 [pid 4531] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4531] <... close resumed>) = 0 [pid 4531] memfd_create("syzkaller", 0 [pid 4529] <... mount resumed>) = -1 EIO (Input/output error) [pid 4531] <... memfd_create resumed>) = 3 [pid 4529] exit_group(0 [pid 4531] ftruncate(3, 0 [pid 4529] <... exit_group resumed>) = ? [pid 4531] <... ftruncate resumed>) = 0 [pid 4531] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4529] +++ exited with 0 +++ [pid 4531] <... openat resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4529, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4531] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4531] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4531] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... close resumed>) = 0 [pid 4531] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4531] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 4531] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4532 [pid 4531] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... close resumed>) = 0 [pid 4531] <... write resumed>) = 21 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4531] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4532 attached [pid 4526] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4533 [pid 4532] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4526] exit_group(0 [pid 4532] <... prctl resumed>) = 0 [pid 4526] <... exit_group resumed>) = ? [pid 4532] setpgid(0, 0 [pid 4526] +++ exited with 0 +++ [pid 4532] <... setpgid resumed>) = 0 [pid 4532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4532] write(3, "1000", 4) = 4 [pid 4532] close(3./strace-static-x86_64: Process 4533 attached ) = 0 [pid 4532] memfd_create("syzkaller", 0 [pid 4533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4526, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4533] <... prctl resumed>) = 0 [pid 4532] <... memfd_create resumed>) = 3 [pid 4533] setpgid(0, 0 [pid 4532] ftruncate(3, 0 [pid 4533] <... setpgid resumed>) = 0 [pid 4532] <... ftruncate resumed>) = 0 [pid 4533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4532] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4533] <... openat resumed>) = 3 [pid 4532] <... openat resumed>) = 4 [pid 4533] write(3, "1000", 4 [pid 4532] ioctl(4, LOOP_SET_FD, 3 [pid 4533] <... write resumed>) = 4 [pid 4532] <... ioctl resumed>) = 0 [pid 4533] close(3 [pid 4532] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4533] <... close resumed>) = 0 [pid 4532] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4533] memfd_create("syzkaller", 0 [pid 4532] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... openat resumed>) = 3 [pid 4533] <... memfd_create resumed>) = 3 [pid 4532] pipe2( [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4533] ftruncate(3, 0 [pid 4532] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4533] <... ftruncate resumed>) = 0 [pid 4532] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4533] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4532] <... write resumed>) = 21 [pid 4533] <... openat resumed>) = 4 [pid 4532] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4533] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4533] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4533] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4528] <... mount resumed>) = -1 EIO (Input/output error) [pid 4533] pipe2( [pid 4528] exit_group(0 [pid 4533] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4528] <... exit_group resumed>) = ? [pid 4533] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4528] +++ exited with 0 +++ [pid 4533] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4528, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] close(3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... close resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4534 [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4531] <... mount resumed>) = -1 EIO (Input/output error) [pid 4531] exit_group(0) = ? ./strace-static-x86_64: Process 4534 attached [pid 4531] +++ exited with 0 +++ [pid 4534] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4534] setpgid(0, 0) = 0 [pid 4534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4534] write(3, "1000", 4) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4531, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4534] close(3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4534] <... close resumed>) = 0 [pid 4534] memfd_create("syzkaller", 0) = 3 [pid 4534] ftruncate(3, 0) = 0 [pid 4534] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4534] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4534] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3615] <... restart_syscall resumed>) = 0 [pid 4534] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4534] pipe2([5, 6], 0) = 0 [pid 4534] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4534] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4530] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4530] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4530] <... exit_group resumed>) = ? [pid 4530] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4535 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4530, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4535 attached ) = 0 [pid 4535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4535] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4535] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4535] <... openat resumed>) = 3 [pid 4535] write(3, "1000", 4) = 4 [pid 4532] <... mount resumed>) = -1 EIO (Input/output error) [pid 4535] close(3 [pid 4532] exit_group(0 [pid 4535] <... close resumed>) = 0 [pid 4532] <... exit_group resumed>) = ? [pid 4535] memfd_create("syzkaller", 0 [pid 4532] +++ exited with 0 +++ [pid 4535] <... memfd_create resumed>) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4535] ftruncate(3, 0 [pid 3615] close(3 [pid 4535] <... ftruncate resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4532, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... close resumed>) = 0 [pid 4535] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] close(3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4535] <... openat resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4535] ioctl(4, LOOP_SET_FD, 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4536 [pid 4535] <... ioctl resumed>) = 0 [pid 4535] mkdir("./file0", 0777 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4537 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4535] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4536 attached [pid 4536] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4536] setpgid(0, 0) = 0 [pid 4536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4536] write(3, "1000", 4 [pid 4535] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4536] <... write resumed>) = 4 [pid 4535] pipe2( [pid 4533] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4537 attached [pid 4536] close(3 [pid 4535] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4533] exit_group(0 [pid 4537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4536] <... close resumed>) = 0 [pid 4535] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4533] <... exit_group resumed>) = ? [pid 4537] <... prctl resumed>) = 0 [pid 4536] memfd_create("syzkaller", 0 [pid 4535] <... write resumed>) = 21 [pid 4533] +++ exited with 0 +++ [pid 4536] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4533, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4536] ftruncate(3, 0) = 0 [pid 4536] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4536] <... openat resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 4537] setpgid(0, 0 [pid 4536] ioctl(4, LOOP_SET_FD, 3 [pid 4535] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4537] <... setpgid resumed>) = 0 [pid 4536] <... ioctl resumed>) = 0 [pid 4537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4536] mkdir("./file0", 0777 [pid 4537] <... openat resumed>) = 3 [pid 4536] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4534] <... mount resumed>) = -1 EIO (Input/output error) [pid 4537] write(3, "1000", 4 [pid 4536] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4534] exit_group(0 [pid 3616] <... ioctl resumed>) = 0 [pid 4536] pipe2( [pid 4534] <... exit_group resumed>) = ? [pid 4536] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4534] +++ exited with 0 +++ [pid 4536] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4536] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4537] <... write resumed>) = 4 [pid 3616] close(3 [pid 4537] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4534, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... close resumed>) = 0 [pid 4537] <... close resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4537] memfd_create("syzkaller", 0 [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4537] <... memfd_create resumed>) = 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4538 [pid 4537] ftruncate(3, 0 [pid 3618] close(3 [pid 4537] <... ftruncate resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4537] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4538 attached [pid 4537] <... openat resumed>) = 4 [pid 4538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4537] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4539 [pid 4538] <... prctl resumed>) = 0 [pid 4537] <... ioctl resumed>) = 0 [pid 4538] setpgid(0, 0 [pid 4537] mkdir("./file0", 0777./strace-static-x86_64: Process 4539 attached [pid 4538] <... setpgid resumed>) = 0 [pid 4537] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4537] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4539] <... prctl resumed>) = 0 [pid 4538] <... openat resumed>) = 3 [pid 4537] pipe2( [pid 4539] setpgid(0, 0 [pid 4538] write(3, "1000", 4 [pid 4539] <... setpgid resumed>) = 0 [pid 4538] <... write resumed>) = 4 [pid 4539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4538] close(3 [pid 4537] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4539] <... openat resumed>) = 3 [pid 4538] <... close resumed>) = 0 [pid 4537] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4539] write(3, "1000", 4 [pid 4538] memfd_create("syzkaller", 0 [pid 4537] <... write resumed>) = 21 [pid 4539] <... write resumed>) = 4 [pid 4538] <... memfd_create resumed>) = 3 [pid 4537] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4539] close(3 [pid 4538] ftruncate(3, 0 [pid 4539] <... close resumed>) = 0 [pid 4538] <... ftruncate resumed>) = 0 [pid 4535] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4539] memfd_create("syzkaller", 0 [pid 4538] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4535] exit_group(0 [pid 3617] close(3 [pid 4539] <... memfd_create resumed>) = 3 [pid 4538] <... openat resumed>) = 4 [pid 4535] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4539] ftruncate(3, 0 [pid 4538] ioctl(4, LOOP_SET_FD, 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4539] <... ftruncate resumed>) = 0 [pid 4538] <... ioctl resumed>) = 0 [pid 4535] +++ exited with 0 +++ [pid 4539] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4538] mkdir("./file0", 0777./strace-static-x86_64: Process 4540 attached [pid 4539] <... openat resumed>) = 4 [pid 4538] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4539] ioctl(4, LOOP_SET_FD, 3 [pid 4538] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4539] <... ioctl resumed>) = 0 [pid 4538] pipe2( [pid 4539] mkdir("./file0", 0777 [pid 4538] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4539] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4538] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4539] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4538] <... write resumed>) = 21 [pid 4539] pipe2( [pid 4538] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4539] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4539] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4536] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4535, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4540 [pid 4539] <... write resumed>) = 21 [pid 4536] exit_group(0 [pid 4539] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4536] <... exit_group resumed>) = ? [pid 4540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4536] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4536, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4540] <... prctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4540] setpgid(0, 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4540] <... setpgid resumed>) = 0 [pid 4540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4540] write(3, "1000", 4 [pid 3615] <... openat resumed>) = 3 [pid 4540] <... write resumed>) = 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4540] close(3) = 0 [pid 4540] memfd_create("syzkaller", 0) = 3 [pid 4540] ftruncate(3, 0) = 0 [pid 4540] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4540] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4540] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4540] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4540] pipe2([5, 6], 0) = 0 [pid 4540] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4540] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4537] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4537] exit_group(0 [pid 3620] close(3 [pid 4537] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4537] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4537, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4541 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4541 attached , child_tidptr=0x5555570a1690) = 4542 [pid 4541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4541] setpgid(0, 0 [pid 3619] <... openat resumed>) = 3 [pid 4541] <... setpgid resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4540] <... mount resumed>) = -1 EIO (Input/output error) [pid 4541] <... openat resumed>) = 3 [pid 4540] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4541] write(3, "1000", 4 [pid 4540] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4541] <... write resumed>) = 4 [pid 4540] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 4541] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4541] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4540, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4541] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4543 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4541] <... memfd_create resumed>) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4541] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 4543 attached ./strace-static-x86_64: Process 4542 attached [pid 4541] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4541] <... openat resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4543] <... prctl resumed>) = 0 [pid 4541] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... openat resumed>) = 3 [pid 4543] setpgid(0, 0 [pid 4541] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4543] <... setpgid resumed>) = 0 [pid 4542] <... prctl resumed>) = 0 [pid 4541] mkdir("./file0", 0777 [pid 4543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4542] setpgid(0, 0 [pid 4541] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4543] <... openat resumed>) = 3 [pid 4542] <... setpgid resumed>) = 0 [pid 4541] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4543] write(3, "1000", 4 [pid 4542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4541] pipe2( [pid 4543] <... write resumed>) = 4 [pid 4541] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4542] <... openat resumed>) = 3 [pid 4543] close(3 [pid 4541] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4542] write(3, "1000", 4 [pid 4543] <... close resumed>) = 0 [pid 4542] <... write resumed>) = 4 [pid 4541] <... write resumed>) = 21 [pid 4539] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4543] memfd_create("syzkaller", 0 [pid 4542] close(3 [pid 4541] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4539] exit_group(0 [pid 3617] close(3 [pid 4543] <... memfd_create resumed>) = 3 [pid 4542] <... close resumed>) = 0 [pid 4539] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4543] ftruncate(3, 0 [pid 4542] memfd_create("syzkaller", 0 [pid 4539] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4543] <... ftruncate resumed>) = 0 [pid 4542] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4539, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4544 attached [pid 4543] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4542] ftruncate(3, 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4544 [pid 4544] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4543] <... openat resumed>) = 4 [pid 4542] <... ftruncate resumed>) = 0 [pid 4544] <... prctl resumed>) = 0 [pid 4543] ioctl(4, LOOP_SET_FD, 3 [pid 4542] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4544] setpgid(0, 0 [pid 4543] <... ioctl resumed>) = 0 [pid 4542] <... openat resumed>) = 4 [pid 4544] <... setpgid resumed>) = 0 [pid 4543] mkdir("./file0", 0777 [pid 4542] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... openat resumed>) = 3 [pid 4544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4543] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4542] <... ioctl resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4544] <... openat resumed>) = 3 [pid 4543] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4542] mkdir("./file0", 0777 [pid 4544] write(3, "1000", 4 [pid 4543] pipe2( [pid 4542] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4544] <... write resumed>) = 4 [pid 4543] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4542] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4544] close(3 [pid 4543] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4542] pipe2( [pid 4544] <... close resumed>) = 0 [pid 4543] <... write resumed>) = 21 [pid 4542] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4544] memfd_create("syzkaller", 0 [pid 4543] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4542] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4544] <... memfd_create resumed>) = 3 [pid 4542] <... write resumed>) = 21 [pid 4544] ftruncate(3, 0 [pid 4542] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4544] <... ftruncate resumed>) = 0 [pid 4544] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4538] <... mount resumed>) = -1 EIO (Input/output error) [pid 4538] exit_group(0 [pid 4544] <... openat resumed>) = 4 [pid 4538] <... exit_group resumed>) = ? [pid 4544] ioctl(4, LOOP_SET_FD, 3 [pid 4538] +++ exited with 0 +++ [pid 4544] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4538, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4544] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4544] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4544] pipe2([5, 6], 0) = 0 [pid 4544] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 4544] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3618] close(3 [pid 3616] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4545 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4546 ./strace-static-x86_64: Process 4545 attached ./strace-static-x86_64: Process 4546 attached [pid 4545] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4546] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4545] setpgid(0, 0 [pid 4546] <... prctl resumed>) = 0 [pid 4545] <... setpgid resumed>) = 0 [pid 4546] setpgid(0, 0 [pid 4545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4546] <... setpgid resumed>) = 0 [pid 4545] <... openat resumed>) = 3 [pid 4546] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4545] write(3, "1000", 4 [pid 4546] <... openat resumed>) = 3 [pid 4545] <... write resumed>) = 4 [pid 4546] write(3, "1000", 4 [pid 4545] close(3 [pid 4546] <... write resumed>) = 4 [pid 4545] <... close resumed>) = 0 [pid 4546] close(3 [pid 4545] memfd_create("syzkaller", 0 [pid 4546] <... close resumed>) = 0 [pid 4545] <... memfd_create resumed>) = 3 [pid 4546] memfd_create("syzkaller", 0 [pid 4545] ftruncate(3, 0 [pid 4546] <... memfd_create resumed>) = 3 [pid 4545] <... ftruncate resumed>) = 0 [pid 4546] ftruncate(3, 0 [pid 4545] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4546] <... ftruncate resumed>) = 0 [pid 4545] ioctl(4, LOOP_SET_FD, 3 [pid 4546] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4545] <... ioctl resumed>) = 0 [pid 4546] <... openat resumed>) = 4 [pid 4545] mkdir("./file0", 0777 [pid 4546] ioctl(4, LOOP_SET_FD, 3 [pid 4545] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4546] <... ioctl resumed>) = 0 [pid 4545] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4546] mkdir("./file0", 0777 [pid 4545] pipe2( [pid 4542] <... mount resumed>) = -1 EIO (Input/output error) [pid 4546] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4545] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4542] exit_group(0 [pid 4546] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4545] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4542] <... exit_group resumed>) = ? [pid 4546] pipe2( [pid 4545] <... write resumed>) = 21 [pid 4542] +++ exited with 0 +++ [pid 4546] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4545] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4546] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4542, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4546] <... write resumed>) = 21 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4546] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... restart_syscall resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] close(3) = 0 [pid 4541] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4541] exit_group(0) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4547 [pid 4541] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4541, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4547 attached [pid 4547] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4547] <... prctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4547] setpgid(0, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4547] <... setpgid resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] close(3 [pid 4547] <... openat resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 4547] write(3, "1000", 4 [pid 4545] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4547] <... write resumed>) = 4 [pid 4545] exit_group(0 [pid 4547] close(3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4550 [pid 4547] <... close resumed>) = 0 [pid 4545] <... exit_group resumed>) = ? [pid 4547] memfd_create("syzkaller", 0) = 3 [pid 4545] +++ exited with 0 +++ ./strace-static-x86_64: Process 4550 attached [pid 4547] ftruncate(3, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4545, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4547] <... ftruncate resumed>) = 0 [pid 4550] <... prctl resumed>) = 0 [pid 4547] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4550] setpgid(0, 0 [pid 4547] <... openat resumed>) = 4 [pid 4550] <... setpgid resumed>) = 0 [pid 4547] ioctl(4, LOOP_SET_FD, 3 [pid 4550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4547] <... ioctl resumed>) = 0 [pid 4546] <... mount resumed>) = -1 EIO (Input/output error) [pid 4550] <... openat resumed>) = 3 [pid 4547] mkdir("./file0", 0777 [pid 4550] write(3, "1000", 4 [pid 4547] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4550] <... write resumed>) = 4 [pid 4547] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... openat resumed>) = 3 [pid 4550] close(3 [pid 4547] pipe2( [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4550] <... close resumed>) = 0 [pid 4547] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4550] memfd_create("syzkaller", 0 [pid 4547] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4550] <... memfd_create resumed>) = 3 [pid 4547] <... write resumed>) = 21 [pid 4550] ftruncate(3, 0 [pid 4547] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4546] exit_group(0 [pid 4550] <... ftruncate resumed>) = 0 [pid 4550] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4550] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4550] mkdir("./file0", 0777 [pid 4546] <... exit_group resumed>) = ? [pid 3616] <... ioctl resumed>) = 0 [pid 4544] <... mount resumed>) = -1 EIO (Input/output error) [pid 4550] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 4550] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 4550] pipe2( [pid 4546] +++ exited with 0 +++ [pid 4544] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4550] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4544] <... exit_group resumed>) = ? [pid 4550] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4551 [pid 4550] <... write resumed>) = 21 [pid 4544] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4546, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4550] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4544, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4551 attached [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4551] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... openat resumed>) = 3 [pid 4551] <... prctl resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4551] setpgid(0, 0 [pid 3617] <... openat resumed>) = 3 [pid 4551] <... setpgid resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4543] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4551] <... openat resumed>) = 3 [pid 4543] exit_group(0 [pid 3618] close(3 [pid 3617] close(3 [pid 4551] write(3, "1000", 4 [pid 4543] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4551] <... write resumed>) = 4 [pid 4543] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4551] close(3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4543, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4551] <... close resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4554 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4553 [pid 4551] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4553 attached ) = 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4554 attached [pid 4553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4551] ftruncate(3, 0 [pid 3619] <... openat resumed>) = 3 [pid 4554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4553] <... prctl resumed>) = 0 [pid 4551] <... ftruncate resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4554] <... prctl resumed>) = 0 [pid 4553] setpgid(0, 0 [pid 4551] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4550] <... mount resumed>) = -1 EIO (Input/output error) [pid 4554] setpgid(0, 0 [pid 4553] <... setpgid resumed>) = 0 [pid 4550] exit_group(0 [pid 4553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4550] <... exit_group resumed>) = ? [pid 4554] <... setpgid resumed>) = 0 [pid 4553] <... openat resumed>) = 3 [pid 4551] <... openat resumed>) = 4 [pid 4550] +++ exited with 0 +++ [pid 4554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4553] write(3, "1000", 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4550, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4553] <... write resumed>) = 4 [pid 4553] close(3) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4553] memfd_create("syzkaller", 0 [pid 4551] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... openat resumed>) = 3 [pid 4554] <... openat resumed>) = 3 [pid 4553] <... memfd_create resumed>) = 3 [pid 4551] <... ioctl resumed>) = 0 [pid 4547] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 4554] write(3, "1000", 4 [pid 4553] ftruncate(3, 0 [pid 4551] mkdir("./file0", 0777 [pid 4547] exit_group(0 [pid 3619] close(3 [pid 4554] <... write resumed>) = 4 [pid 4553] <... ftruncate resumed>) = 0 [pid 4551] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4547] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 4554] close(3 [pid 4553] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4551] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4547] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4554] <... close resumed>) = 0 [pid 4553] <... openat resumed>) = 4 [pid 4551] pipe2( [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4547, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4554] memfd_create("syzkaller", 0 [pid 4553] ioctl(4, LOOP_SET_FD, 3 [pid 4551] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4555 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4554] <... memfd_create resumed>) = 3 [pid 4553] <... ioctl resumed>) = 0 [pid 4551] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 4555 attached [pid 4554] ftruncate(3, 0 [pid 4553] mkdir("./file0", 0777 [pid 4551] <... write resumed>) = 21 [pid 4555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4554] <... ftruncate resumed>) = 0 [pid 4553] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4551] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4555] <... prctl resumed>) = 0 [pid 4554] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4553] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4555] setpgid(0, 0 [pid 4554] <... openat resumed>) = 4 [pid 4553] pipe2( [pid 3615] <... openat resumed>) = 3 [pid 4555] <... setpgid resumed>) = 0 [pid 4554] ioctl(4, LOOP_SET_FD, 3 [pid 4553] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4554] <... ioctl resumed>) = 0 [pid 4553] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4555] <... openat resumed>) = 3 [pid 4554] mkdir("./file0", 0777 [pid 4553] <... write resumed>) = 21 [pid 4555] write(3, "1000", 4 [pid 4554] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4553] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4555] <... write resumed>) = 4 [pid 4554] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4555] close(3 [pid 4554] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 4555] <... close resumed>) = 0 [pid 4554] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] close(3 [pid 4555] memfd_create("syzkaller", 0 [pid 4554] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... close resumed>) = 0 [pid 4555] <... memfd_create resumed>) = 3 [pid 4554] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4555] ftruncate(3, 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4556 [pid 4555] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4555] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4554] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4555] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4555] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4551] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4556 attached [pid 4555] pipe2( [pid 4551] exit_group(0 [pid 3615] close(3 [pid 4555] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... close resumed>) = 0 [pid 4556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4555] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4551] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4555] <... write resumed>) = 21 [pid 4555] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4557 [pid 4556] <... prctl resumed>) = 0 [pid 4551] +++ exited with 0 +++ [pid 4556] setpgid(0, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4551, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4557 attached [pid 4556] <... setpgid resumed>) = 0 [pid 4557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4557] <... prctl resumed>) = 0 [pid 4556] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4557] setpgid(0, 0 [pid 4556] write(3, "1000", 4 [pid 4553] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4557] <... setpgid resumed>) = 0 [pid 4553] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4553] <... exit_group resumed>) = ? [pid 4557] <... openat resumed>) = 3 [pid 4553] +++ exited with 0 +++ [pid 4557] write(3, "1000", 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4553, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4557] <... write resumed>) = 4 [pid 4557] close(3) = 0 [pid 4556] <... write resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4557] memfd_create("syzkaller", 0 [pid 4556] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4557] <... memfd_create resumed>) = 3 [pid 4556] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4557] ftruncate(3, 0 [pid 4556] memfd_create("syzkaller", 0 [pid 4557] <... ftruncate resumed>) = 0 [pid 4557] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4557] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4557] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4557] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4556] <... memfd_create resumed>) = 3 [pid 4557] pipe2( [pid 4556] ftruncate(3, 0 [pid 4557] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4556] <... ftruncate resumed>) = 0 [pid 4557] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4557] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4556] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4554] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4556] ioctl(4, LOOP_SET_FD, 3 [pid 4554] exit_group(0 [pid 3617] close(3 [pid 3616] close(3 [pid 4556] <... ioctl resumed>) = 0 [pid 4554] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4556] mkdir("./file0", 0777 [pid 4554] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4556] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4554, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4556] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4556] pipe2([5, 6], 0) = 0 [pid 4556] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4556] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4558 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4559 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4559 attached ./strace-static-x86_64: Process 4558 attached [pid 4559] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4558] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4559] <... prctl resumed>) = 0 [pid 4558] setpgid(0, 0 [pid 4559] setpgid(0, 0 [pid 4558] <... setpgid resumed>) = 0 [pid 4555] <... mount resumed>) = -1 EIO (Input/output error) [pid 4559] <... setpgid resumed>) = 0 [pid 4559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4555] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 4559] <... openat resumed>) = 3 [pid 4558] <... openat resumed>) = 3 [pid 4557] <... mount resumed>) = -1 EIO (Input/output error) [pid 4555] <... exit_group resumed>) = ? [pid 3618] close(3 [pid 4559] write(3, "1000", 4 [pid 4558] write(3, "1000", 4 [pid 4557] exit_group(0 [pid 4555] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 4559] <... write resumed>) = 4 [pid 4558] <... write resumed>) = 4 [pid 4557] <... exit_group resumed>) = ? [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4555, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4559] close(3 [pid 4558] close(3 [pid 4557] +++ exited with 0 +++ [pid 4556] <... mount resumed>) = -1 EIO (Input/output error) [pid 4559] <... close resumed>) = 0 [pid 4558] <... close resumed>) = 0 [pid 4556] exit_group(0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4560 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4557, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4559] memfd_create("syzkaller", 0 [pid 4558] memfd_create("syzkaller", 0 [pid 4556] <... exit_group resumed>) = ? [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4559] <... memfd_create resumed>) = 3 [pid 4558] <... memfd_create resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4556] +++ exited with 0 +++ ./strace-static-x86_64: Process 4560 attached [pid 4559] ftruncate(3, 0 [pid 4558] ftruncate(3, 0 [pid 4560] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4559] <... ftruncate resumed>) = 0 [pid 4558] <... ftruncate resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4556, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4560] <... prctl resumed>) = 0 [pid 4559] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4558] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4560] setpgid(0, 0 [pid 4559] <... openat resumed>) = 4 [pid 4558] <... openat resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 4560] <... setpgid resumed>) = 0 [pid 4559] ioctl(4, LOOP_SET_FD, 3 [pid 4558] ioctl(4, LOOP_SET_FD, 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4559] <... ioctl resumed>) = 0 [pid 4558] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4560] <... openat resumed>) = 3 [pid 4559] mkdir("./file0", 0777 [pid 4558] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] close(3 [pid 3615] close(3 [pid 4560] write(3, "1000", 4 [pid 4559] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4558] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4560] <... write resumed>) = 4 [pid 4559] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4558] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4560] close(3 [pid 4559] pipe2( [pid 4558] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 4560] <... close resumed>) = 0 [pid 4559] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4558] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] close(3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4561 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4562 [pid 4560] memfd_create("syzkaller", 0 [pid 4559] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4558] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... close resumed>) = 0 ./strace-static-x86_64: Process 4561 attached [pid 4560] <... memfd_create resumed>) = 3 [pid 4559] <... write resumed>) = 21 [pid 4558] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4562 attached [pid 4561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4560] ftruncate(3, 0 [pid 4559] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4558] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4561] <... prctl resumed>) = 0 [pid 4560] <... ftruncate resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4563 ./strace-static-x86_64: Process 4563 attached [pid 4562] <... prctl resumed>) = 0 [pid 4561] setpgid(0, 0 [pid 4560] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4562] setpgid(0, 0 [pid 4561] <... setpgid resumed>) = 0 [pid 4560] <... openat resumed>) = 4 [pid 4563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4562] <... setpgid resumed>) = 0 [pid 4561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4560] ioctl(4, LOOP_SET_FD, 3 [pid 4563] <... prctl resumed>) = 0 [pid 4562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4561] <... openat resumed>) = 3 [pid 4560] <... ioctl resumed>) = 0 [pid 4563] setpgid(0, 0 [pid 4562] <... openat resumed>) = 3 [pid 4561] write(3, "1000", 4 [pid 4560] mkdir("./file0", 0777 [pid 4563] <... setpgid resumed>) = 0 [pid 4562] write(3, "1000", 4 [pid 4561] <... write resumed>) = 4 [pid 4560] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4562] <... write resumed>) = 4 [pid 4561] close(3 [pid 4560] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4563] <... openat resumed>) = 3 [pid 4562] close(3 [pid 4561] <... close resumed>) = 0 [pid 4560] pipe2( [pid 4563] write(3, "1000", 4 [pid 4562] <... close resumed>) = 0 [pid 4561] memfd_create("syzkaller", 0 [pid 4560] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4559] <... mount resumed>) = -1 EIO (Input/output error) [pid 4563] <... write resumed>) = 4 [pid 4562] memfd_create("syzkaller", 0 [pid 4561] <... memfd_create resumed>) = 3 [pid 4560] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4559] exit_group(0 [pid 4563] close(3 [pid 4562] <... memfd_create resumed>) = 3 [pid 4561] ftruncate(3, 0 [pid 4560] <... write resumed>) = 21 [pid 4559] <... exit_group resumed>) = ? [pid 4563] <... close resumed>) = 0 [pid 4562] ftruncate(3, 0 [pid 4561] <... ftruncate resumed>) = 0 [pid 4560] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4559] +++ exited with 0 +++ [pid 4563] memfd_create("syzkaller", 0 [pid 4562] <... ftruncate resumed>) = 0 [pid 4561] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4563] <... memfd_create resumed>) = 3 [pid 4562] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4561] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4559, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4563] ftruncate(3, 0 [pid 4562] <... openat resumed>) = 4 [pid 4561] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4563] <... ftruncate resumed>) = 0 [pid 4562] ioctl(4, LOOP_SET_FD, 3 [pid 4561] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4563] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4562] <... ioctl resumed>) = 0 [pid 4561] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4563] <... openat resumed>) = 4 [pid 4562] mkdir("./file0", 0777 [pid 4561] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... ioctl resumed>) = 0 [pid 4563] ioctl(4, LOOP_SET_FD, 3 [pid 4562] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4561] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] close(3 [pid 4563] <... ioctl resumed>) = 0 [pid 4562] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4561] pipe2( [pid 3616] <... close resumed>) = 0 [pid 4563] mkdir("./file0", 0777 [pid 4562] pipe2( [pid 4561] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4563] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4562] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4561] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4563] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4562] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4561] <... write resumed>) = 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4564 [pid 4563] pipe2( [pid 4562] <... write resumed>) = 21 [pid 4561] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4563] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4562] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4558] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4564 attached [pid 4563] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4558] exit_group(0 [pid 4564] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4563] <... write resumed>) = 21 [pid 4558] <... exit_group resumed>) = ? [pid 4564] <... prctl resumed>) = 0 [pid 4563] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4558] +++ exited with 0 +++ [pid 4564] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4558, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4564] <... setpgid resumed>) = 0 [pid 4564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4564] write(3, "1000", 4) = 4 [pid 4564] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4564] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4564] memfd_create("syzkaller", 0 [pid 4561] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4564] <... memfd_create resumed>) = 3 [pid 4561] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4564] ftruncate(3, 0 [pid 4561] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 4564] <... ftruncate resumed>) = 0 [pid 4561] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 4564] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4564] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4561, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4564] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4565 [pid 4564] <... ioctl resumed>) = 0 [pid 4564] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4564] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4565 attached [pid 4564] pipe2( [pid 3619] <... openat resumed>) = 3 [pid 4565] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4564] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4565] <... prctl resumed>) = 0 [pid 4564] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4565] setpgid(0, 0 [pid 4564] <... write resumed>) = 21 [pid 4565] <... setpgid resumed>) = 0 [pid 4564] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4560] <... mount resumed>) = -1 EIO (Input/output error) [pid 4565] <... openat resumed>) = 3 [pid 4560] exit_group(0 [pid 4565] write(3, "1000", 4 [pid 4560] <... exit_group resumed>) = ? [pid 4565] <... write resumed>) = 4 [pid 4560] +++ exited with 0 +++ [pid 4565] close(3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4560, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4565] memfd_create("syzkaller", 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4565] <... memfd_create resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 4565] ftruncate(3, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4565] <... ftruncate resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4565] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] close(3 [pid 3618] close(3 [pid 4565] <... openat resumed>) = 4 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4565] ioctl(4, LOOP_SET_FD, 3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4565] <... ioctl resumed>) = 0 [pid 4565] mkdir("./file0", 0777 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4568 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4567 [pid 4565] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4565] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4565] pipe2([5, 6], 0) = 0 [pid 4565] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4565] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4567 attached [pid 4567] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4567] setpgid(0, 0./strace-static-x86_64: Process 4568 attached ) = 0 [pid 4568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4562] <... mount resumed>) = -1 EIO (Input/output error) [pid 4567] write(3, "1000", 4 [pid 4562] exit_group(0 [pid 4567] <... write resumed>) = 4 [pid 4562] <... exit_group resumed>) = ? [pid 4567] close(3 [pid 4562] +++ exited with 0 +++ [pid 4567] <... close resumed>) = 0 [pid 4567] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4562, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4567] <... memfd_create resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4567] ftruncate(3, 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4567] <... ftruncate resumed>) = 0 [pid 4567] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4568] <... prctl resumed>) = 0 [pid 4567] <... openat resumed>) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4568] setpgid(0, 0 [pid 4567] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... openat resumed>) = 3 [pid 4568] <... setpgid resumed>) = 0 [pid 4567] <... ioctl resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4567] mkdir("./file0", 0777 [pid 4568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4567] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4568] <... openat resumed>) = 3 [pid 4567] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4568] write(3, "1000", 4 [pid 4567] pipe2( [pid 4568] <... write resumed>) = 4 [pid 4567] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4568] close(3 [pid 4567] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4568] <... close resumed>) = 0 [pid 4567] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4568] memfd_create("syzkaller", 0) = 3 [pid 4568] ftruncate(3, 0) = 0 [pid 4568] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4568] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4568] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4568] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4568] pipe2([5, 6], 0) = 0 [pid 4568] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4568] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4569 ./strace-static-x86_64: Process 4569 attached [pid 4569] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4569] setpgid(0, 0) = 0 [pid 4569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4569] write(3, "1000", 4) = 4 [pid 4569] close(3) = 0 [pid 4569] memfd_create("syzkaller", 0) = 3 [pid 4569] ftruncate(3, 0) = 0 [pid 4569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4569] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4569] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4569] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4569] pipe2([5, 6], 0) = 0 [pid 4569] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4563] <... mount resumed>) = -1 EIO (Input/output error) [pid 4569] <... write resumed>) = 21 [pid 4569] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4563] exit_group(0) = ? [pid 4563] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4563, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4570 [pid 4564] <... mount resumed>) = -1 EIO (Input/output error) [pid 4564] exit_group(0) = ? [pid 4564] +++ exited with 0 +++ ./strace-static-x86_64: Process 4570 attached [pid 4570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4564, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4570] <... prctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4570] setpgid(0, 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4570] <... setpgid resumed>) = 0 [pid 4570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4570] write(3, "1000", 4 [pid 3616] <... openat resumed>) = 3 [pid 4570] <... write resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4570] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 4570] <... close resumed>) = 0 [pid 3616] close(3 [pid 4570] memfd_create("syzkaller", 0 [pid 3616] <... close resumed>) = 0 [pid 4570] <... memfd_create resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4570] ftruncate(3, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4571 [pid 4570] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4570] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4570] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4570] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4570] pipe2([5, 6], 0) = 0 [pid 4570] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4570] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4571 attached [pid 4571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4571] setpgid(0, 0) = 0 [pid 4571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4571] write(3, "1000", 4) = 4 [pid 4571] close(3) = 0 [pid 4571] memfd_create("syzkaller", 0) = 3 [pid 4571] ftruncate(3, 0) = 0 [pid 4571] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4571] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4571] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4571] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4571] pipe2([5, 6], 0) = 0 [pid 4571] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4571] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4568] <... mount resumed>) = -1 EIO (Input/output error) [pid 4568] exit_group(0) = ? [pid 4568] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4568, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4572 ./strace-static-x86_64: Process 4572 attached [pid 4565] <... mount resumed>) = -1 EIO (Input/output error) [pid 4565] exit_group(0) = ? [pid 4572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4565] +++ exited with 0 +++ [pid 4572] <... prctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4565, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4572] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4572] <... setpgid resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4572] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4572] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4572] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4572] <... close resumed>) = 0 [pid 4572] memfd_create("syzkaller", 0) = 3 [pid 4572] ftruncate(3, 0) = 0 [pid 4572] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4572] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4572] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4572] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4572] pipe2([5, 6], 0) = 0 [pid 4572] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4572] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4573 ./strace-static-x86_64: Process 4573 attached [pid 4573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4573] setpgid(0, 0) = 0 [pid 4573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4573] write(3, "1000", 4) = 4 [pid 4573] close(3) = 0 [pid 4573] memfd_create("syzkaller", 0) = 3 [pid 4573] ftruncate(3, 0 [pid 4567] <... mount resumed>) = -1 EIO (Input/output error) [pid 4573] <... ftruncate resumed>) = 0 [pid 4567] exit_group(0 [pid 4573] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4567] <... exit_group resumed>) = ? [pid 4573] <... openat resumed>) = 4 [pid 4567] +++ exited with 0 +++ [pid 4573] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4567, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4573] mkdir("./file0", 0777 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4573] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4573] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4573] pipe2( [pid 4569] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4573] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4569] exit_group(0 [pid 3618] close(3 [pid 4573] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4569] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4573] <... write resumed>) = 21 [pid 4569] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4573] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4574 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4569, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4574 attached [pid 4574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4574] setpgid(0, 0 [pid 3615] <... openat resumed>) = 3 [pid 4574] <... setpgid resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... ioctl resumed>) = 0 [pid 4574] <... openat resumed>) = 3 [pid 3615] close(3 [pid 4574] write(3, "1000", 4 [pid 3615] <... close resumed>) = 0 [pid 4574] <... write resumed>) = 4 [pid 4570] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4574] close(3 [pid 4570] exit_group(0 [pid 4574] <... close resumed>) = 0 [pid 4570] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4575 [pid 4574] memfd_create("syzkaller", 0 [pid 4570] +++ exited with 0 +++ [pid 4574] <... memfd_create resumed>) = 3 [pid 4574] ftruncate(3, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4570, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4574] <... ftruncate resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4574] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... restart_syscall resumed>) = 0 [pid 4574] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4575 attached [pid 4574] ioctl(4, LOOP_SET_FD, 3 [pid 4575] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4574] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4575] <... prctl resumed>) = 0 [pid 4574] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 4575] setpgid(0, 0 [pid 4574] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4575] <... setpgid resumed>) = 0 [pid 4574] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4575] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4574] pipe2( [pid 4575] <... openat resumed>) = 3 [pid 4574] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4575] write(3, "1000", 4 [pid 4574] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4575] <... write resumed>) = 4 [pid 4574] <... write resumed>) = 21 [pid 4575] close(3 [pid 4574] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4575] <... close resumed>) = 0 [pid 4575] memfd_create("syzkaller", 0) = 3 [pid 4571] <... mount resumed>) = -1 EIO (Input/output error) [pid 4575] ftruncate(3, 0 [pid 4571] exit_group(0 [pid 4575] <... ftruncate resumed>) = 0 [pid 4571] <... exit_group resumed>) = ? [pid 4575] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4571] +++ exited with 0 +++ [pid 4575] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4571, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4575] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4575] mkdir("./file0", 0777 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4575] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 4575] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4575] pipe2([5, 6], 0) = 0 [pid 4572] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4575] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4572] exit_group(0 [pid 3620] close(3 [pid 4575] <... write resumed>) = 21 [pid 4572] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4575] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4572] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4576 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4572, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4577 ./strace-static-x86_64: Process 4576 attached [pid 4576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4576] setpgid(0, 0) = 0 [pid 4576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4577 attached ) = 3 [pid 4577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4576] write(3, "1000", 4 [pid 4577] <... prctl resumed>) = 0 [pid 4576] <... write resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4577] setpgid(0, 0 [pid 4576] close(3 [pid 4573] <... mount resumed>) = -1 EIO (Input/output error) [pid 4577] <... setpgid resumed>) = 0 [pid 4576] <... close resumed>) = 0 [pid 4577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4576] memfd_create("syzkaller", 0 [pid 4577] <... openat resumed>) = 3 [pid 4576] <... memfd_create resumed>) = 3 [pid 4577] write(3, "1000", 4 [pid 4576] ftruncate(3, 0 [pid 4577] <... write resumed>) = 4 [pid 4576] <... ftruncate resumed>) = 0 [pid 4577] close(3 [pid 4576] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4577] <... close resumed>) = 0 [pid 4576] <... openat resumed>) = 4 [pid 4577] memfd_create("syzkaller", 0 [pid 4576] ioctl(4, LOOP_SET_FD, 3 [pid 4577] <... memfd_create resumed>) = 3 [pid 4576] <... ioctl resumed>) = 0 [pid 4577] ftruncate(3, 0 [pid 4576] mkdir("./file0", 0777 [pid 4577] <... ftruncate resumed>) = 0 [pid 4576] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4577] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4576] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4577] <... openat resumed>) = 4 [pid 4576] pipe2( [pid 4577] ioctl(4, LOOP_SET_FD, 3 [pid 4576] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4577] <... ioctl resumed>) = 0 [pid 4576] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4577] mkdir("./file0", 0777 [pid 4576] <... write resumed>) = 21 [pid 4577] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4576] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4573] exit_group(0 [pid 4577] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4577] pipe2([5, 6], 0) = 0 [pid 4577] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4577] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4573] <... exit_group resumed>) = ? [pid 4573] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4573, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3619] <... close resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] close(3) = 0 ./strace-static-x86_64: Process 4578 attached [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4578 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4578] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4579 attached [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4579 [pid 4578] <... prctl resumed>) = 0 [pid 4578] setpgid(0, 0) = 0 [pid 4578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4578] write(3, "1000", 4) = 4 [pid 4578] close(3) = 0 [pid 4579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4578] memfd_create("syzkaller", 0 [pid 4579] <... prctl resumed>) = 0 [pid 4578] <... memfd_create resumed>) = 3 [pid 4579] setpgid(0, 0 [pid 4578] ftruncate(3, 0 [pid 4579] <... setpgid resumed>) = 0 [pid 4578] <... ftruncate resumed>) = 0 [pid 4579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4578] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4579] <... openat resumed>) = 3 [pid 4578] <... openat resumed>) = 4 [pid 4579] write(3, "1000", 4 [pid 4578] ioctl(4, LOOP_SET_FD, 3 [pid 4579] <... write resumed>) = 4 [pid 4579] close(3) = 0 [pid 4579] memfd_create("syzkaller", 0) = 3 [pid 4579] ftruncate(3, 0) = 0 [pid 4579] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4579] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4578] <... ioctl resumed>) = 0 [pid 4579] mkdir("./file0", 0777 [pid 4578] mkdir("./file0", 0777 [pid 4574] <... mount resumed>) = -1 EIO (Input/output error) [pid 4579] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4578] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4574] exit_group(0 [pid 4579] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4578] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4574] <... exit_group resumed>) = ? [pid 4579] pipe2( [pid 4578] pipe2( [pid 4579] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4578] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4579] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4578] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4574] +++ exited with 0 +++ [pid 4579] <... write resumed>) = 21 [pid 4578] <... write resumed>) = 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4574, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4579] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4578] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4577] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4577] exit_group(0 [pid 3618] close(3 [pid 4577] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4580 [pid 4577] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4577, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4580 attached [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4580] setpgid(0, 0) = 0 [pid 4580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4580] write(3, "1000", 4) = 4 [pid 4580] close(3 [pid 4576] <... mount resumed>) = -1 EIO (Input/output error) [pid 4580] <... close resumed>) = 0 [pid 4580] memfd_create("syzkaller", 0 [pid 4576] exit_group(0 [pid 4580] <... memfd_create resumed>) = 3 [pid 4580] ftruncate(3, 0 [pid 4576] <... exit_group resumed>) = ? [pid 4580] <... ftruncate resumed>) = 0 [pid 4580] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4580] ioctl(4, LOOP_SET_FD, 3 [pid 4576] +++ exited with 0 +++ [pid 4580] <... ioctl resumed>) = 0 [pid 4580] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4575] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4576, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... ioctl resumed>) = 0 [pid 4580] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4575] exit_group(0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4580] pipe2( [pid 4575] <... exit_group resumed>) = ? [pid 3620] <... restart_syscall resumed>) = 0 [pid 3616] close(3 [pid 4580] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4580] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... close resumed>) = 0 [pid 4580] <... write resumed>) = 21 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4580] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4575] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4575, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4581 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4579] <... mount resumed>) = -1 EIO (Input/output error) [pid 4579] exit_group(0) = ? [pid 4579] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4579, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4581 attached [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4581] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... openat resumed>) = 3 [pid 4581] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4581] setpgid(0, 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4581] <... setpgid resumed>) = 0 [pid 3617] close(3 [pid 4581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4581] <... openat resumed>) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4582 [pid 3615] <... ioctl resumed>) = 0 [pid 4581] write(3, "1000", 4 [pid 3620] close(3 [pid 4581] <... write resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3615] close(3 [pid 4581] close(3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 ./strace-static-x86_64: Process 4582 attached [pid 4582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4581] <... close resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4583 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4584 [pid 4582] <... prctl resumed>) = 0 [pid 4581] memfd_create("syzkaller", 0 [pid 4582] setpgid(0, 0) = 0 [pid 4581] <... memfd_create resumed>) = 3 [pid 4582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4583 attached ) = 3 [pid 4581] ftruncate(3, 0./strace-static-x86_64: Process 4584 attached [pid 4582] write(3, "1000", 4 [pid 4584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4582] <... write resumed>) = 4 [pid 4581] <... ftruncate resumed>) = 0 [pid 4584] <... prctl resumed>) = 0 [pid 4582] close(3 [pid 4581] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4584] setpgid(0, 0 [pid 4582] <... close resumed>) = 0 [pid 4584] <... setpgid resumed>) = 0 [pid 4582] memfd_create("syzkaller", 0 [pid 4581] <... openat resumed>) = 4 [pid 4584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4582] <... memfd_create resumed>) = 3 [pid 4581] ioctl(4, LOOP_SET_FD, 3 [pid 4584] <... openat resumed>) = 3 [pid 4582] ftruncate(3, 0 [pid 4584] write(3, "1000", 4 [pid 4583] <... prctl resumed>) = 0 [pid 4581] <... ioctl resumed>) = 0 [pid 4578] <... mount resumed>) = -1 EIO (Input/output error) [pid 4583] setpgid(0, 0 [pid 4582] <... ftruncate resumed>) = 0 [pid 4581] mkdir("./file0", 0777 [pid 4578] exit_group(0 [pid 4584] <... write resumed>) = 4 [pid 4583] <... setpgid resumed>) = 0 [pid 4582] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4581] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4578] <... exit_group resumed>) = ? [pid 4584] close(3 [pid 4583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4582] <... openat resumed>) = 4 [pid 4581] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4578] +++ exited with 0 +++ [pid 4584] <... close resumed>) = 0 [pid 4583] <... openat resumed>) = 3 [pid 4582] ioctl(4, LOOP_SET_FD, 3 [pid 4581] pipe2( [pid 4584] memfd_create("syzkaller", 0 [pid 4583] write(3, "1000", 4 [pid 4582] <... ioctl resumed>) = 0 [pid 4581] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4578, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4584] <... memfd_create resumed>) = 3 [pid 4583] <... write resumed>) = 4 [pid 4582] mkdir("./file0", 0777 [pid 4581] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4584] ftruncate(3, 0 [pid 4583] close(3 [pid 4582] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4581] <... write resumed>) = 21 [pid 4580] <... mount resumed>) = -1 EIO (Input/output error) [pid 4584] <... ftruncate resumed>) = 0 [pid 4583] <... close resumed>) = 0 [pid 4582] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4581] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4580] exit_group(0 [pid 3619] <... openat resumed>) = 3 [pid 4584] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4583] memfd_create("syzkaller", 0 [pid 4582] pipe2( [pid 4580] <... exit_group resumed>) = ? [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4584] <... openat resumed>) = 4 [pid 4583] <... memfd_create resumed>) = 3 [pid 4582] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4583] ftruncate(3, 0) = 0 [pid 4583] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4580] +++ exited with 0 +++ [pid 4584] ioctl(4, LOOP_SET_FD, 3 [pid 4583] <... openat resumed>) = 4 [pid 4582] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4580, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4584] <... ioctl resumed>) = 0 [pid 4583] ioctl(4, LOOP_SET_FD, 3 [pid 4582] <... write resumed>) = 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4584] mkdir("./file0", 0777 [pid 4583] <... ioctl resumed>) = 0 [pid 4582] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... restart_syscall resumed>) = 0 [pid 4584] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4583] mkdir("./file0", 0777 [pid 4584] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4583] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4584] pipe2( [pid 4583] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4584] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4583] pipe2( [pid 3618] <... openat resumed>) = 3 [pid 4584] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4583] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4584] <... write resumed>) = 21 [pid 4583] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... ioctl resumed>) = 0 [pid 4584] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4583] <... write resumed>) = 21 [pid 3618] close(3 [pid 4583] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4585 ./strace-static-x86_64: Process 4585 attached [pid 4585] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4585] setpgid(0, 0 [pid 3619] close(3 [pid 4585] <... setpgid resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4585] <... openat resumed>) = 3 [pid 4585] write(3, "1000", 4) = 4 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4586 [pid 4585] close(3 [pid 4581] <... mount resumed>) = -1 EIO (Input/output error) [pid 4585] <... close resumed>) = 0 [pid 4581] exit_group(0./strace-static-x86_64: Process 4586 attached [pid 4585] memfd_create("syzkaller", 0 [pid 4581] <... exit_group resumed>) = ? [pid 4586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4585] <... memfd_create resumed>) = 3 [pid 4581] +++ exited with 0 +++ [pid 4586] <... prctl resumed>) = 0 [pid 4585] ftruncate(3, 0 [pid 4586] setpgid(0, 0 [pid 4585] <... ftruncate resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4581, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4586] <... setpgid resumed>) = 0 [pid 4585] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4585] <... openat resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4586] <... openat resumed>) = 3 [pid 4585] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4586] write(3, "1000", 4 [pid 4585] <... ioctl resumed>) = 0 [pid 4586] <... write resumed>) = 4 [pid 4585] mkdir("./file0", 0777 [pid 4586] close(3 [pid 4585] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4586] <... close resumed>) = 0 [pid 4585] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4586] memfd_create("syzkaller", 0 [pid 4585] pipe2( [pid 4586] <... memfd_create resumed>) = 3 [pid 4585] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4586] ftruncate(3, 0 [pid 4585] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4586] <... ftruncate resumed>) = 0 [pid 4585] <... write resumed>) = 21 [pid 4586] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4585] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4583] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4586] <... openat resumed>) = 4 [pid 4583] exit_group(0 [pid 3616] close(3 [pid 4586] ioctl(4, LOOP_SET_FD, 3 [pid 4583] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4586] <... ioctl resumed>) = 0 [pid 4583] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4586] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4583, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4586] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4587 [pid 4586] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4586] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4587 attached [pid 4586] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4587] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4586] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4587] <... prctl resumed>) = 0 [pid 4586] <... write resumed>) = 21 [pid 4584] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4587] setpgid(0, 0 [pid 4586] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4584] exit_group(0 [pid 3620] close(3 [pid 4587] <... setpgid resumed>) = 0 [pid 4584] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 4587] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4584] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4587] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4584, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4587] write(3, "1000", 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4588 [pid 4587] <... write resumed>) = 4 [pid 4587] close(3) = 0 [pid 4587] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4588 attached ) = 3 [pid 4588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4587] ftruncate(3, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4588] <... prctl resumed>) = 0 [pid 4587] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4588] setpgid(0, 0 [pid 4587] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4588] <... setpgid resumed>) = 0 [pid 4587] <... openat resumed>) = 4 [pid 4588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4587] ioctl(4, LOOP_SET_FD, 3 [pid 4588] <... openat resumed>) = 3 [pid 4587] <... ioctl resumed>) = 0 [pid 4588] write(3, "1000", 4 [pid 4587] mkdir("./file0", 0777 [pid 4588] <... write resumed>) = 4 [pid 4587] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4588] close(3 [pid 4587] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4588] <... close resumed>) = 0 [pid 4587] pipe2( [pid 4588] memfd_create("syzkaller", 0 [pid 4587] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4588] <... memfd_create resumed>) = 3 [pid 4587] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4588] ftruncate(3, 0 [pid 4587] <... write resumed>) = 21 [pid 4588] <... ftruncate resumed>) = 0 [pid 4587] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4588] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4588] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4582] <... mount resumed>) = -1 EIO (Input/output error) [pid 4588] mkdir("./file0", 0777 [pid 4582] exit_group(0 [pid 4588] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4582] <... exit_group resumed>) = ? [pid 4588] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4588] pipe2([5, 6], 0) = 0 [pid 4588] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4588] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4582] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4582, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... close resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4589 ./strace-static-x86_64: Process 4589 attached [pid 4589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4589] setpgid(0, 0) = 0 [pid 4589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4589] write(3, "1000", 4) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4589] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4589] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4589] memfd_create("syzkaller", 0) = 3 [pid 4585] <... mount resumed>) = -1 EIO (Input/output error) [pid 4589] ftruncate(3, 0 [pid 4585] exit_group(0 [pid 4589] <... ftruncate resumed>) = 0 [pid 4585] <... exit_group resumed>) = ? [pid 4589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4585] +++ exited with 0 +++ [pid 4589] ioctl(4, LOOP_SET_FD, 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4585, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4589] <... ioctl resumed>) = 0 [pid 4589] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4589] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4589] pipe2( [pid 3617] <... ioctl resumed>) = 0 [pid 4589] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] close(3 [pid 4586] <... mount resumed>) = -1 EIO (Input/output error) [pid 4589] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4586] exit_group(0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 4589] <... write resumed>) = 21 [pid 4586] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4589] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4586] +++ exited with 0 +++ [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4590 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4586, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4587] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... openat resumed>) = 3 [pid 4587] exit_group(0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4587] <... exit_group resumed>) = ? [pid 4587] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4587, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4590 attached [pid 4590] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4590] setpgid(0, 0) = 0 [pid 4590] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4590] write(3, "1000", 4) = 4 [pid 4590] close(3) = 0 [pid 4590] memfd_create("syzkaller", 0) = 3 [pid 4590] ftruncate(3, 0) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4591 ./strace-static-x86_64: Process 4591 attached [pid 4590] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4588] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4590] <... openat resumed>) = 4 [pid 4588] exit_group(0 [pid 3619] close(3 [pid 3616] close(3 [pid 4590] ioctl(4, LOOP_SET_FD, 3 [pid 4588] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4590] <... ioctl resumed>) = 0 [pid 4588] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4591] <... prctl resumed>) = 0 [pid 4590] mkdir("./file0", 0777 [pid 4591] setpgid(0, 0 [pid 4590] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4588, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4592 [pid 4591] <... setpgid resumed>) = 0 [pid 4590] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4593 ./strace-static-x86_64: Process 4593 attached ./strace-static-x86_64: Process 4592 attached [pid 4591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4590] pipe2( [pid 3620] <... restart_syscall resumed>) = 0 [pid 4591] <... openat resumed>) = 3 [pid 4590] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4591] write(3, "1000", 4 [pid 4590] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4593] <... prctl resumed>) = 0 [pid 4592] <... prctl resumed>) = 0 [pid 4591] <... write resumed>) = 4 [pid 4590] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4593] setpgid(0, 0 [pid 4592] setpgid(0, 0 [pid 4591] close(3 [pid 4590] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4589] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... openat resumed>) = 3 [pid 4593] <... setpgid resumed>) = 0 [pid 4592] <... setpgid resumed>) = 0 [pid 4591] <... close resumed>) = 0 [pid 4589] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4591] memfd_create("syzkaller", 0 [pid 4589] <... exit_group resumed>) = ? [pid 4593] <... openat resumed>) = 3 [pid 4592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4591] <... memfd_create resumed>) = 3 [pid 4589] +++ exited with 0 +++ [pid 4593] write(3, "1000", 4 [pid 4592] <... openat resumed>) = 3 [pid 4591] ftruncate(3, 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4589, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4593] <... write resumed>) = 4 [pid 4592] write(3, "1000", 4 [pid 4591] <... ftruncate resumed>) = 0 [pid 4593] close(3 [pid 4592] <... write resumed>) = 4 [pid 4591] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4593] <... close resumed>) = 0 [pid 4592] close(3 [pid 4591] <... openat resumed>) = 4 [pid 4593] memfd_create("syzkaller", 0 [pid 4592] <... close resumed>) = 0 [pid 4591] ioctl(4, LOOP_SET_FD, 3 [pid 4593] <... memfd_create resumed>) = 3 [pid 4592] memfd_create("syzkaller", 0 [pid 4593] ftruncate(3, 0 [pid 4592] <... memfd_create resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4591] <... ioctl resumed>) = 0 [pid 4593] <... ftruncate resumed>) = 0 [pid 4592] ftruncate(3, 0 [pid 4591] mkdir("./file0", 0777 [pid 3615] <... openat resumed>) = 3 [pid 4593] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4592] <... ftruncate resumed>) = 0 [pid 4591] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4593] <... openat resumed>) = 4 [pid 4592] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4591] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4593] ioctl(4, LOOP_SET_FD, 3 [pid 4592] <... openat resumed>) = 4 [pid 4591] pipe2( [pid 4593] <... ioctl resumed>) = 0 [pid 4592] ioctl(4, LOOP_SET_FD, 3 [pid 4591] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4593] mkdir("./file0", 0777 [pid 4592] <... ioctl resumed>) = 0 [pid 4591] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4593] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4592] mkdir("./file0", 0777 [pid 4591] <... write resumed>) = 21 [pid 4593] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4592] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4591] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4593] pipe2( [pid 4592] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 4593] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4592] pipe2( [pid 3620] close(3 [pid 4593] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4592] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 4593] <... write resumed>) = 21 [pid 4592] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4593] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4592] <... write resumed>) = 21 [pid 4592] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4590] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4594 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4595 ./strace-static-x86_64: Process 4594 attached [pid 4590] exit_group(0 [pid 4594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4590] <... exit_group resumed>) = ? [pid 4594] <... prctl resumed>) = 0 [pid 4594] setpgid(0, 0 [pid 4590] +++ exited with 0 +++ [pid 4594] <... setpgid resumed>) = 0 [pid 4594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4594] write(3, "1000", 4) = 4 [pid 4594] close(3) = 0 ./strace-static-x86_64: Process 4595 attached [pid 4594] memfd_create("syzkaller", 0 [pid 4591] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4590, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4595] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4594] <... memfd_create resumed>) = 3 [pid 4591] exit_group(0 [pid 4594] ftruncate(3, 0 [pid 4591] <... exit_group resumed>) = ? [pid 4594] <... ftruncate resumed>) = 0 [pid 4591] +++ exited with 0 +++ [pid 4594] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4591, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4595] <... prctl resumed>) = 0 [pid 4594] <... openat resumed>) = 4 [pid 4595] setpgid(0, 0 [pid 4594] ioctl(4, LOOP_SET_FD, 3 [pid 4595] <... setpgid resumed>) = 0 [pid 4594] <... ioctl resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4594] mkdir("./file0", 0777 [pid 3618] <... openat resumed>) = 3 [pid 4594] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4595] <... openat resumed>) = 3 [pid 4594] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4595] write(3, "1000", 4 [pid 4594] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4595] <... write resumed>) = 4 [pid 4594] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4595] close(3 [pid 4594] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4595] <... close resumed>) = 0 [pid 4594] <... write resumed>) = 21 [pid 4595] memfd_create("syzkaller", 0 [pid 4594] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4595] <... memfd_create resumed>) = 3 [pid 4595] ftruncate(3, 0) = 0 [pid 4595] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4595] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4595] mkdir("./file0", 0777 [pid 4592] <... mount resumed>) = -1 EIO (Input/output error) [pid 4592] exit_group(0) = ? [pid 4592] +++ exited with 0 +++ [pid 4595] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... ioctl resumed>) = 0 [pid 4595] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4592, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4596 ./strace-static-x86_64: Process 4596 attached [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4595] pipe2( [pid 3619] <... restart_syscall resumed>) = 0 [pid 4595] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4595] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4596] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4596] setpgid(0, 0) = 0 [pid 4596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4595] <... write resumed>) = 21 [pid 4596] write(3, "1000", 4) = 4 [pid 4596] close(3) = 0 [pid 4596] memfd_create("syzkaller", 0) = 3 [pid 4596] ftruncate(3, 0 [pid 4595] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4596] <... ftruncate resumed>) = 0 [pid 3617] close(3 [pid 4596] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = 0 [pid 4596] <... openat resumed>) = 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4596] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... ioctl resumed>) = 0 [pid 4596] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 4596] mkdir("./file0", 0777 [pid 3619] <... close resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4597 [pid 4596] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4596] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4596] pipe2([5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4598 [pid 4596] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4596] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4593] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4598 attached ./strace-static-x86_64: Process 4597 attached [pid 4593] exit_group(0 [pid 4598] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4593] <... exit_group resumed>) = ? [pid 4598] <... prctl resumed>) = 0 [pid 4597] <... prctl resumed>) = 0 [pid 4593] +++ exited with 0 +++ [pid 4598] setpgid(0, 0 [pid 4597] setpgid(0, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4593, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4598] <... setpgid resumed>) = 0 [pid 4597] <... setpgid resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... restart_syscall resumed>) = 0 [pid 4598] <... openat resumed>) = 3 [pid 4597] <... openat resumed>) = 3 [pid 4598] write(3, "1000", 4 [pid 4597] write(3, "1000", 4 [pid 4598] <... write resumed>) = 4 [pid 4597] <... write resumed>) = 4 [pid 4598] close(3 [pid 4597] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4598] <... close resumed>) = 0 [pid 4597] <... close resumed>) = 0 [pid 4594] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4594] exit_group(0) = ? [pid 4594] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4594, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4598] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4598] <... memfd_create resumed>) = 3 [pid 4597] memfd_create("syzkaller", 0 [pid 3620] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4598] ftruncate(3, 0 [pid 4597] <... memfd_create resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4598] <... ftruncate resumed>) = 0 [pid 4597] ftruncate(3, 0 [pid 4598] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4597] <... ftruncate resumed>) = 0 [pid 4598] <... openat resumed>) = 4 [pid 4597] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4598] ioctl(4, LOOP_SET_FD, 3 [pid 4597] <... openat resumed>) = 4 [pid 4598] <... ioctl resumed>) = 0 [pid 4597] ioctl(4, LOOP_SET_FD, 3 [pid 4598] mkdir("./file0", 0777 [pid 4597] <... ioctl resumed>) = 0 [pid 4598] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4597] mkdir("./file0", 0777 [pid 4598] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4597] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4598] pipe2( [pid 4597] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4598] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4597] pipe2( [pid 4598] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4597] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4598] <... write resumed>) = 21 [pid 4597] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4598] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4597] <... write resumed>) = 21 [pid 4597] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4595] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4595] exit_group(0 [pid 3620] close(3 [pid 3616] close(3 [pid 4595] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4595] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4595, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4599 [pid 3615] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4600 attached ./strace-static-x86_64: Process 4599 attached [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4600 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4600] <... prctl resumed>) = 0 [pid 4599] <... prctl resumed>) = 0 [pid 4600] setpgid(0, 0 [pid 4599] setpgid(0, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4600] <... setpgid resumed>) = 0 [pid 4599] <... setpgid resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4600] <... openat resumed>) = 3 [pid 4596] <... mount resumed>) = -1 EIO (Input/output error) [pid 4596] exit_group(0) = ? [pid 4596] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4596, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3 [pid 4599] <... openat resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 4600] write(3, "1000", 4 [pid 4599] write(3, "1000", 4 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4600] <... write resumed>) = 4 [pid 4599] <... write resumed>) = 4 [pid 4600] close(3 [pid 4599] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4601 [pid 4600] <... close resumed>) = 0 [pid 4599] <... close resumed>) = 0 [pid 4599] memfd_create("syzkaller", 0 [pid 4600] memfd_create("syzkaller", 0 [pid 4599] <... memfd_create resumed>) = 3 [pid 4600] <... memfd_create resumed>) = 3 [pid 4599] ftruncate(3, 0 [pid 4600] ftruncate(3, 0 [pid 4599] <... ftruncate resumed>) = 0 [pid 4600] <... ftruncate resumed>) = 0 [pid 4599] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4601 attached [pid 4600] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4599] <... openat resumed>) = 4 [pid 4601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4601] setpgid(0, 0) = 0 [pid 4601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4601] write(3, "1000", 4) = 4 [pid 4601] close(3) = 0 [pid 4601] memfd_create("syzkaller", 0) = 3 [pid 4601] ftruncate(3, 0 [pid 4600] <... openat resumed>) = 4 [pid 4599] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... ioctl resumed>) = 0 [pid 4601] <... ftruncate resumed>) = 0 [pid 4600] ioctl(4, LOOP_SET_FD, 3 [pid 4599] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4601] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4600] <... ioctl resumed>) = 0 [pid 4599] mkdir("./file0", 0777 [pid 3615] <... close resumed>) = 0 [pid 4601] <... openat resumed>) = 4 [pid 4600] mkdir("./file0", 0777 [pid 4599] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4601] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4602 [pid 4601] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4601] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4601] pipe2([5, 6], 0) = 0 [pid 4601] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4601] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4600] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4599] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4597] <... mount resumed>) = -1 EIO (Input/output error) [pid 4600] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4599] pipe2( [pid 4597] exit_group(0./strace-static-x86_64: Process 4602 attached [pid 4600] pipe2( [pid 4599] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4597] <... exit_group resumed>) = ? [pid 4602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4600] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4599] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4597] +++ exited with 0 +++ [pid 4602] <... prctl resumed>) = 0 [pid 4602] setpgid(0, 0) = 0 [pid 4599] <... write resumed>) = 21 [pid 4600] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4599] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4600] <... write resumed>) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4597, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4602] <... openat resumed>) = 3 [pid 4600] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4602] write(3, "1000", 4) = 4 [pid 4602] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4602] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4602] memfd_create("syzkaller", 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4602] <... memfd_create resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4602] ftruncate(3, 0 [pid 3617] close(3 [pid 4602] <... ftruncate resumed>) = 0 [pid 4602] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 4602] <... openat resumed>) = 4 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4602] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4602] mkdir("./file0", 0777 [pid 4598] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4603 [pid 4602] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4602] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4598] exit_group(0 [pid 4602] pipe2( [pid 4598] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4603 attached [pid 4602] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4602] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4603] <... prctl resumed>) = 0 [pid 4602] <... write resumed>) = 21 [pid 4598] +++ exited with 0 +++ [pid 4603] setpgid(0, 0 [pid 4602] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4603] <... setpgid resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4598, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4603] <... openat resumed>) = 3 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4603] write(3, "1000", 4 [pid 4601] <... mount resumed>) = -1 EIO (Input/output error) [pid 4603] <... write resumed>) = 4 [pid 4601] exit_group(0 [pid 4603] close(3 [pid 4601] <... exit_group resumed>) = ? [pid 4603] <... close resumed>) = 0 [pid 4603] memfd_create("syzkaller", 0 [pid 4601] +++ exited with 0 +++ [pid 4603] <... memfd_create resumed>) = 3 [pid 4603] ftruncate(3, 0) = 0 [pid 4603] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4603] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4603] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4603] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4603] pipe2([5, 6], 0) = 0 [pid 4603] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4603] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4601, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3618] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4599] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4599] exit_group(0 [pid 3619] close(3 [pid 3618] close(3 [pid 3619] <... close resumed>) = 0 [pid 4599] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4605 attached ./strace-static-x86_64: Process 4604 attached [pid 4599] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4599, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4604 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4605 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4604] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4605] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4604] <... prctl resumed>) = 0 [pid 4604] setpgid(0, 0 [pid 4605] <... prctl resumed>) = 0 [pid 4605] setpgid(0, 0 [pid 4604] <... setpgid resumed>) = 0 [pid 4605] <... setpgid resumed>) = 0 [pid 4604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4604] write(3, "1000", 4 [pid 4600] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 4605] <... openat resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4604] <... write resumed>) = 4 [pid 4605] write(3, "1000", 4 [pid 4600] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4606 [pid 4604] close(3 [pid 4600] <... exit_group resumed>) = ? [pid 4605] <... write resumed>) = 4 [pid 4605] close(3 [pid 4604] <... close resumed>) = 0 [pid 4600] +++ exited with 0 +++ ./strace-static-x86_64: Process 4606 attached [pid 4605] <... close resumed>) = 0 [pid 4604] memfd_create("syzkaller", 0 [pid 4605] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4600, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4604] <... memfd_create resumed>) = 3 [pid 4606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4605] <... memfd_create resumed>) = 3 [pid 4604] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4606] <... prctl resumed>) = 0 [pid 4605] ftruncate(3, 0 [pid 4604] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4606] setpgid(0, 0 [pid 4605] <... ftruncate resumed>) = 0 [pid 4604] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4606] <... setpgid resumed>) = 0 [pid 4605] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4604] <... openat resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4605] <... openat resumed>) = 4 [pid 4604] ioctl(4, LOOP_SET_FD, 3 [pid 4606] <... openat resumed>) = 3 [pid 4605] ioctl(4, LOOP_SET_FD, 3 [pid 4604] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4606] write(3, "1000", 4 [pid 4605] <... ioctl resumed>) = 0 [pid 4604] mkdir("./file0", 0777 [pid 4602] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 4606] <... write resumed>) = 4 [pid 4605] mkdir("./file0", 0777 [pid 4604] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4606] close(3 [pid 4605] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4604] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 4606] <... close resumed>) = 0 [pid 4605] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4604] pipe2( [pid 4602] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4606] memfd_create("syzkaller", 0 [pid 4605] pipe2( [pid 4604] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4602] <... exit_group resumed>) = ? [pid 4606] <... memfd_create resumed>) = 3 [pid 4605] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4604] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4606] ftruncate(3, 0 [pid 4605] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4604] <... write resumed>) = 21 [pid 4606] <... ftruncate resumed>) = 0 [pid 4605] <... write resumed>) = 21 [pid 4604] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4602] +++ exited with 0 +++ [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4607 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4602, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4606] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4605] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4606] <... openat resumed>) = 4 [pid 4606] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4606] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4607 attached [pid 4606] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4606] pipe2( [pid 4607] <... prctl resumed>) = 0 [pid 4606] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4607] setpgid(0, 0 [pid 4606] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4607] <... setpgid resumed>) = 0 [pid 4606] <... write resumed>) = 21 [pid 4603] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... openat resumed>) = 3 [pid 4607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4606] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4607] <... openat resumed>) = 3 [pid 4603] exit_group(0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4607] write(3, "1000", 4 [pid 4603] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4607] <... write resumed>) = 4 [pid 4607] close(3 [pid 4603] +++ exited with 0 +++ [pid 3615] close(3 [pid 4607] <... close resumed>) = 0 [pid 4607] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4603, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... close resumed>) = 0 [pid 4607] <... memfd_create resumed>) = 3 [pid 4604] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4607] ftruncate(3, 0 [pid 4604] exit_group(0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4607] <... ftruncate resumed>) = 0 [pid 4604] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 4608 attached [pid 4607] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4604] +++ exited with 0 +++ [pid 4607] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4604, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4608 [pid 4607] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... openat resumed>) = 3 [pid 4608] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4607] <... ioctl resumed>) = 0 [pid 4605] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4608] <... prctl resumed>) = 0 [pid 4607] mkdir("./file0", 0777 [pid 4605] exit_group(0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4608] setpgid(0, 0 [pid 4607] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4605] <... exit_group resumed>) = ? [pid 3619] <... openat resumed>) = 3 [pid 4608] <... setpgid resumed>) = 0 [pid 4607] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4605] +++ exited with 0 +++ [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4607] pipe2( [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4605, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4608] <... openat resumed>) = 3 [pid 4607] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4608] write(3, "1000", 4 [pid 4607] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4608] <... write resumed>) = 4 [pid 4607] <... write resumed>) = 21 [pid 4608] close(3 [pid 4607] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4608] <... close resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4608] memfd_create("syzkaller", 0) = 3 [pid 3618] <... openat resumed>) = 3 [pid 4608] ftruncate(3, 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4608] <... ftruncate resumed>) = 0 [pid 4608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4608] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4608] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4608] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4608] pipe2([5, 6], 0) = 0 [pid 4608] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4608] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4606] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4606] exit_group(0 [pid 3619] close(3 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4606] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 3618] close(3 [pid 3617] <... close resumed>) = 0 [pid 4606] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4606, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4609 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] ioctl(3, LOOP_CLR_FD) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4610 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4612 ./strace-static-x86_64: Process 4609 attached ./strace-static-x86_64: Process 4611 attached [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4611 [pid 4609] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4612 attached [pid 4611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4611] <... prctl resumed>) = 0 [pid 4609] <... prctl resumed>) = 0 [pid 4612] <... prctl resumed>) = 0 [pid 4611] setpgid(0, 0 [pid 4609] setpgid(0, 0 [pid 4612] setpgid(0, 0 [pid 4611] <... setpgid resumed>) = 0 [pid 4609] <... setpgid resumed>) = 0 [pid 4612] <... setpgid resumed>) = 0 [pid 4611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4611] <... openat resumed>) = 3 [pid 4609] <... openat resumed>) = 3 [pid 4612] <... openat resumed>) = 3 [pid 4611] write(3, "1000", 4 [pid 4609] write(3, "1000", 4./strace-static-x86_64: Process 4610 attached [pid 4612] write(3, "1000", 4 [pid 4611] <... write resumed>) = 4 [pid 4609] <... write resumed>) = 4 [pid 4608] <... mount resumed>) = -1 EIO (Input/output error) [pid 4612] <... write resumed>) = 4 [pid 4611] close(3 [pid 4609] close(3 [pid 4612] close(3 [pid 4611] <... close resumed>) = 0 [pid 4610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4609] <... close resumed>) = 0 [pid 4608] exit_group(0 [pid 4612] <... close resumed>) = 0 [pid 4611] memfd_create("syzkaller", 0 [pid 4610] <... prctl resumed>) = 0 [pid 4609] memfd_create("syzkaller", 0 [pid 4608] <... exit_group resumed>) = ? [pid 4612] memfd_create("syzkaller", 0 [pid 4611] <... memfd_create resumed>) = 3 [pid 4610] setpgid(0, 0 [pid 4609] <... memfd_create resumed>) = 3 [pid 4612] <... memfd_create resumed>) = 3 [pid 4611] ftruncate(3, 0 [pid 4609] ftruncate(3, 0 [pid 4612] ftruncate(3, 0 [pid 4611] <... ftruncate resumed>) = 0 [pid 4610] <... setpgid resumed>) = 0 [pid 4609] <... ftruncate resumed>) = 0 [pid 4608] +++ exited with 0 +++ [pid 4612] <... ftruncate resumed>) = 0 [pid 4611] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4609] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4607] <... mount resumed>) = -1 EIO (Input/output error) [pid 4612] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4611] <... openat resumed>) = 4 [pid 4610] <... openat resumed>) = 3 [pid 4609] <... openat resumed>) = 4 [pid 4607] exit_group(0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4608, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4612] <... openat resumed>) = 4 [pid 4611] ioctl(4, LOOP_SET_FD, 3 [pid 4610] write(3, "1000", 4 [pid 4609] ioctl(4, LOOP_SET_FD, 3 [pid 4607] <... exit_group resumed>) = ? [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4612] ioctl(4, LOOP_SET_FD, 3 [pid 4611] <... ioctl resumed>) = 0 [pid 4610] <... write resumed>) = 4 [pid 4609] <... ioctl resumed>) = 0 [pid 4607] +++ exited with 0 +++ [pid 3615] <... restart_syscall resumed>) = 0 [pid 4612] <... ioctl resumed>) = 0 [pid 4611] mkdir("./file0", 0777 [pid 4610] close(3 [pid 4609] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4607, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4612] mkdir("./file0", 0777 [pid 4611] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4610] <... close resumed>) = 0 [pid 4609] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4612] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4611] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4610] memfd_create("syzkaller", 0 [pid 4609] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4612] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4611] pipe2( [pid 4610] <... memfd_create resumed>) = 3 [pid 4609] pipe2( [pid 3615] <... openat resumed>) = 3 [pid 4612] pipe2( [pid 4611] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4610] ftruncate(3, 0 [pid 4609] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4612] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4611] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4610] <... ftruncate resumed>) = 0 [pid 4609] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4612] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4611] <... write resumed>) = 21 [pid 4610] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4609] <... write resumed>) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4612] <... write resumed>) = 21 [pid 4611] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4610] <... openat resumed>) = 4 [pid 4609] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4612] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4610] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4610] <... ioctl resumed>) = 0 [pid 4610] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4610] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4610] pipe2([5, 6], 0) = 0 [pid 4610] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4610] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 4611] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4611] exit_group(0) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4613 [pid 4611] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4611, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4614 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 ./strace-static-x86_64: Process 4613 attached [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... ioctl resumed>) = 0 [pid 4613] <... prctl resumed>) = 0 [pid 3618] close(3 [pid 4613] setpgid(0, 0 [pid 3618] <... close resumed>) = 0 ./strace-static-x86_64: Process 4614 attached [pid 4613] <... setpgid resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4614] <... prctl resumed>) = 0 [pid 4613] <... openat resumed>) = 3 [pid 4614] setpgid(0, 0 [pid 4613] write(3, "1000", 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4615 ./strace-static-x86_64: Process 4615 attached [pid 4614] <... setpgid resumed>) = 0 [pid 4613] <... write resumed>) = 4 [pid 4609] <... mount resumed>) = -1 EIO (Input/output error) [pid 4614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4613] close(3 [pid 4615] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4614] <... openat resumed>) = 3 [pid 4613] <... close resumed>) = 0 [pid 4609] exit_group(0 [pid 4615] <... prctl resumed>) = 0 [pid 4614] write(3, "1000", 4 [pid 4613] memfd_create("syzkaller", 0 [pid 4609] <... exit_group resumed>) = ? [pid 4614] <... write resumed>) = 4 [pid 4613] <... memfd_create resumed>) = 3 [pid 4614] close(3 [pid 4613] ftruncate(3, 0 [pid 4614] <... close resumed>) = 0 [pid 4613] <... ftruncate resumed>) = 0 [pid 4615] setpgid(0, 0 [pid 4614] memfd_create("syzkaller", 0 [pid 4613] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4609] +++ exited with 0 +++ [pid 4615] <... setpgid resumed>) = 0 [pid 4614] <... memfd_create resumed>) = 3 [pid 4613] <... openat resumed>) = 4 [pid 4612] <... mount resumed>) = -1 EIO (Input/output error) [pid 4614] ftruncate(3, 0 [pid 4613] ioctl(4, LOOP_SET_FD, 3 [pid 4612] exit_group(0 [pid 4614] <... ftruncate resumed>) = 0 [pid 4613] <... ioctl resumed>) = 0 [pid 4612] <... exit_group resumed>) = ? [pid 4614] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4613] mkdir("./file0", 0777 [pid 4612] +++ exited with 0 +++ [pid 4614] <... openat resumed>) = 4 [pid 4613] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4614] ioctl(4, LOOP_SET_FD, 3 [pid 4613] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4612, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4614] <... ioctl resumed>) = 0 [pid 4613] pipe2( [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4614] mkdir("./file0", 0777 [pid 4613] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4614] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4613] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4613] <... write resumed>) = 21 [pid 4615] <... openat resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4609, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4615] write(3, "1000", 4 [pid 4614] pipe2( [pid 4613] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4615] <... write resumed>) = 4 [pid 4614] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4614] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4614] <... write resumed>) = 21 [pid 4614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4615] close(3 [pid 3619] <... openat resumed>) = 3 [pid 4615] <... close resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4615] memfd_create("syzkaller", 0) = 3 [pid 4615] ftruncate(3, 0) = 0 [pid 4615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4615] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4615] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4615] pipe2([5, 6], 0) = 0 [pid 4615] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4615] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4610] <... mount resumed>) = -1 EIO (Input/output error) [pid 4615] <... mount resumed>) = -1 EIO (Input/output error) [pid 4610] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4615] exit_group(0 [pid 4610] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4615] <... exit_group resumed>) = ? [pid 4610] +++ exited with 0 +++ [pid 3620] close(3 [pid 3619] <... close resumed>) = 0 [pid 4615] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4615, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4610, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4616 ./strace-static-x86_64: Process 4616 attached [pid 4616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4616] setpgid(0, 0) = 0 [pid 4616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4616] write(3, "1000", 4 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4617 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4616] <... write resumed>) = 4 [pid 3618] <... openat resumed>) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4616] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4616] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4616] memfd_create("syzkaller", 0) = 3 [pid 4616] ftruncate(3, 0) = 0 [pid 4616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4616] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4616] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4616] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4616] pipe2(./strace-static-x86_64: Process 4617 attached [5, 6], 0) = 0 [pid 4617] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4616] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4617] <... prctl resumed>) = 0 [pid 4616] <... write resumed>) = 21 [pid 4617] setpgid(0, 0 [pid 4616] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4617] <... setpgid resumed>) = 0 [pid 4617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4617] write(3, "1000", 4) = 4 [pid 4617] close(3) = 0 [pid 4617] memfd_create("syzkaller", 0) = 3 [pid 4617] ftruncate(3, 0) = 0 [pid 4617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4617] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4617] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4617] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4617] pipe2([5, 6], 0) = 0 [pid 4617] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4617] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4614] <... mount resumed>) = -1 EIO (Input/output error) [pid 4614] exit_group(0) = ? [pid 4614] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4614, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] <... close resumed>) = 0 [pid 3617] close(3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4618 ./strace-static-x86_64: Process 4619 attached ./strace-static-x86_64: Process 4618 attached [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4619 [pid 4619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4613] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4618] <... prctl resumed>) = 0 [pid 4613] exit_group(0 [pid 3616] close(3 [pid 4618] setpgid(0, 0 [pid 4613] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 4619] setpgid(0, 0 [pid 4618] <... setpgid resumed>) = 0 [pid 4613] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4619] <... setpgid resumed>) = 0 [pid 4618] <... openat resumed>) = 3 [pid 4618] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4620 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4613, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4620 attached [pid 4619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4618] <... write resumed>) = 4 [pid 4617] <... mount resumed>) = -1 EIO (Input/output error) [pid 4620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4619] <... openat resumed>) = 3 [pid 4618] close(3 [pid 4617] exit_group(0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4618] <... close resumed>) = 0 [pid 4620] <... prctl resumed>) = 0 [pid 4619] write(3, "1000", 4 [pid 4618] memfd_create("syzkaller", 0 [pid 4617] <... exit_group resumed>) = ? [pid 3615] <... restart_syscall resumed>) = 0 [pid 4620] setpgid(0, 0 [pid 4619] <... write resumed>) = 4 [pid 4618] <... memfd_create resumed>) = 3 [pid 4617] +++ exited with 0 +++ [pid 4618] ftruncate(3, 0) = 0 [pid 4618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4618] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4618] pipe2([5, 6], 0) = 0 [pid 4618] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4620] <... setpgid resumed>) = 0 [pid 4619] close(3 [pid 4618] <... write resumed>) = 21 [pid 4620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4619] <... close resumed>) = 0 [pid 4618] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4617, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4620] <... openat resumed>) = 3 [pid 4619] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4616] <... mount resumed>) = -1 EIO (Input/output error) [pid 4616] exit_group(0) = ? [pid 4620] write(3, "1000", 4 [pid 4619] <... memfd_create resumed>) = 3 [pid 4616] +++ exited with 0 +++ [pid 3620] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4620] <... write resumed>) = 4 [pid 4619] ftruncate(3, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4616, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4620] close(3 [pid 4619] <... ftruncate resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4621 [pid 3615] <... openat resumed>) = 3 [pid 4620] <... close resumed>) = 0 [pid 4619] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] close(3 [pid 4620] memfd_create("syzkaller", 0 [pid 4619] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4620] <... memfd_create resumed>) = 3 [pid 4619] ioctl(4, LOOP_SET_FD, 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... ioctl resumed>) = 0 [pid 4620] ftruncate(3, 0) = 0 [pid 4619] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4620] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 4621 attached ) = 4 [pid 4619] mkdir("./file0", 0777 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4622 [pid 3615] <... close resumed>) = 0 [pid 4621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4620] ioctl(4, LOOP_SET_FD, 3 [pid 4619] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4621] <... prctl resumed>) = 0 [pid 4619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4621] setpgid(0, 0 [pid 4619] pipe2( [pid 4618] <... mount resumed>) = -1 EIO (Input/output error) [pid 4621] <... setpgid resumed>) = 0 [pid 4619] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4618] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4623 [pid 4619] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4618] <... exit_group resumed>) = ? [pid 4621] <... openat resumed>) = 3 [pid 4618] +++ exited with 0 +++ [pid 4621] write(3, "1000", 4) = 4 [pid 4621] close(3) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4618, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4621] memfd_create("syzkaller", 0) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4621] ftruncate(3, 0) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4621] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4621] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... ioctl resumed>) = 0 [pid 4621] <... ioctl resumed>) = 0 [pid 3618] close(3./strace-static-x86_64: Process 4623 attached ./strace-static-x86_64: Process 4622 attached [pid 4621] mkdir("./file0", 0777 [pid 3618] <... close resumed>) = 0 [pid 4620] <... ioctl resumed>) = 0 [pid 4621] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4620] mkdir("./file0", 0777 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4620] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4621] pipe2( [pid 4620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4621] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4620] pipe2( [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4624 [pid 4623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4621] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4620] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4624 attached [pid 4623] <... prctl resumed>) = 0 [pid 4622] <... prctl resumed>) = 0 [pid 4621] <... write resumed>) = 21 [pid 4620] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4623] setpgid(0, 0 [pid 4622] setpgid(0, 0 [pid 4621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4620] <... write resumed>) = 21 [pid 4624] <... prctl resumed>) = 0 [pid 4623] <... setpgid resumed>) = 0 [pid 4622] <... setpgid resumed>) = 0 [pid 4620] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4624] setpgid(0, 0 [pid 4623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4624] <... setpgid resumed>) = 0 [pid 4623] <... openat resumed>) = 3 [pid 4622] <... openat resumed>) = 3 [pid 4619] <... mount resumed>) = -1 EIO (Input/output error) [pid 4624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4623] write(3, "1000", 4 [pid 4622] write(3, "1000", 4 [pid 4619] exit_group(0 [pid 4624] <... openat resumed>) = 3 [pid 4623] <... write resumed>) = 4 [pid 4622] <... write resumed>) = 4 [pid 4619] <... exit_group resumed>) = ? [pid 4624] write(3, "1000", 4 [pid 4623] close(3 [pid 4622] close(3 [pid 4619] +++ exited with 0 +++ [pid 4624] <... write resumed>) = 4 [pid 4623] <... close resumed>) = 0 [pid 4622] <... close resumed>) = 0 [pid 4621] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4619, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4624] close(3 [pid 4623] memfd_create("syzkaller", 0 [pid 4622] memfd_create("syzkaller", 0 [pid 4624] <... close resumed>) = 0 [pid 4623] <... memfd_create resumed>) = 3 [pid 4621] exit_group(0 [pid 4622] <... memfd_create resumed>) = 3 [pid 4624] memfd_create("syzkaller", 0 [pid 4623] ftruncate(3, 0 [pid 4622] ftruncate(3, 0 [pid 4621] <... exit_group resumed>) = ? [pid 4624] <... memfd_create resumed>) = 3 [pid 4623] <... ftruncate resumed>) = 0 [pid 4622] <... ftruncate resumed>) = 0 [pid 4621] +++ exited with 0 +++ [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4624] ftruncate(3, 0 [pid 4623] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4622] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4624] <... ftruncate resumed>) = 0 [pid 4623] <... openat resumed>) = 4 [pid 4622] <... openat resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4621, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4624] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4623] ioctl(4, LOOP_SET_FD, 3 [pid 4622] ioctl(4, LOOP_SET_FD, 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... ioctl resumed>) = 0 [pid 4624] <... openat resumed>) = 4 [pid 4623] <... ioctl resumed>) = 0 [pid 4622] <... ioctl resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] close(3 [pid 4624] ioctl(4, LOOP_SET_FD, 3 [pid 4623] mkdir("./file0", 0777 [pid 4622] mkdir("./file0", 0777 [pid 3617] <... close resumed>) = 0 [pid 4624] <... ioctl resumed>) = 0 [pid 4623] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4622] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4624] mkdir("./file0", 0777 [pid 4623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4625 attached [pid 4624] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4623] pipe2( [pid 4622] pipe2( [pid 3619] <... openat resumed>) = 3 [pid 4624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4623] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4622] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4625 [pid 4624] pipe2( [pid 4623] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4622] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... ioctl resumed>) = 0 [pid 4624] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4623] <... write resumed>) = 21 [pid 4622] <... write resumed>) = 21 [pid 3619] close(3 [pid 4624] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... close resumed>) = 0 [pid 4624] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4626 [pid 4625] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4626 attached ) = 0 [pid 4625] setpgid(0, 0 [pid 4626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4625] <... setpgid resumed>) = 0 [pid 4626] setpgid(0, 0 [pid 4625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4620] <... mount resumed>) = -1 EIO (Input/output error) [pid 4620] exit_group(0) = ? [pid 4620] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4620, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4626] <... setpgid resumed>) = 0 [pid 4625] <... openat resumed>) = 3 [pid 4626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4625] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4625] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4625] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4625] <... close resumed>) = 0 [pid 4626] <... openat resumed>) = 3 [pid 4625] memfd_create("syzkaller", 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4626] write(3, "1000", 4 [pid 4625] <... memfd_create resumed>) = 3 [pid 3616] close(3 [pid 4626] <... write resumed>) = 4 [pid 4625] ftruncate(3, 0 [pid 3616] <... close resumed>) = 0 [pid 4626] close(3 [pid 4625] <... ftruncate resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4626] <... close resumed>) = 0 [pid 4625] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4626] memfd_create("syzkaller", 0 [pid 4625] <... openat resumed>) = 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4627 [pid 4626] <... memfd_create resumed>) = 3 [pid 4625] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4626] ftruncate(3, 0) = 0 [pid 4625] mkdir("./file0", 0777./strace-static-x86_64: Process 4627 attached [pid 4627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4626] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4627] <... prctl resumed>) = 0 [pid 4626] <... openat resumed>) = 4 [pid 4625] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4627] setpgid(0, 0 [pid 4626] ioctl(4, LOOP_SET_FD, 3 [pid 4625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4627] <... setpgid resumed>) = 0 [pid 4627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4626] <... ioctl resumed>) = 0 [pid 4625] pipe2( [pid 4627] <... openat resumed>) = 3 [pid 4626] mkdir("./file0", 0777 [pid 4625] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4627] write(3, "1000", 4 [pid 4626] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4625] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4627] <... write resumed>) = 4 [pid 4627] close(3 [pid 4626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4625] <... write resumed>) = 21 [pid 4627] <... close resumed>) = 0 [pid 4626] pipe2( [pid 4625] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4627] memfd_create("syzkaller", 0 [pid 4626] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4627] <... memfd_create resumed>) = 3 [pid 4624] <... mount resumed>) = -1 EIO (Input/output error) [pid 4627] ftruncate(3, 0) = 0 [pid 4627] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4627] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4627] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4627] pipe2([5, 6], 0) = 0 [pid 4627] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4626] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4627] <... write resumed>) = 21 [pid 4626] <... write resumed>) = 21 [pid 4624] exit_group(0 [pid 4627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4624] <... exit_group resumed>) = ? [pid 4624] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4624, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4628 ./strace-static-x86_64: Process 4628 attached [pid 4628] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4623] <... mount resumed>) = -1 EIO (Input/output error) [pid 4628] <... prctl resumed>) = 0 [pid 4623] exit_group(0) = ? [pid 4628] setpgid(0, 0 [pid 4623] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4623, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4628] <... setpgid resumed>) = 0 [pid 4628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4628] <... openat resumed>) = 3 [pid 4628] write(3, "1000", 4) = 4 [pid 4628] close(3) = 0 [pid 4622] <... mount resumed>) = -1 EIO (Input/output error) [pid 4628] memfd_create("syzkaller", 0 [pid 4622] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4628] <... memfd_create resumed>) = 3 [pid 4628] ftruncate(3, 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4629 [pid 4628] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4629 attached [pid 4628] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4622] <... exit_group resumed>) = ? [pid 4629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4628] <... openat resumed>) = 4 [pid 4622] +++ exited with 0 +++ [pid 4629] <... prctl resumed>) = 0 [pid 4628] ioctl(4, LOOP_SET_FD, 3 [pid 4629] setpgid(0, 0 [pid 4628] <... ioctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4622, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4629] <... setpgid resumed>) = 0 [pid 4628] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4628] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 [pid 4629] write(3, "1000", 4 [pid 4628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4629] <... write resumed>) = 4 [pid 4627] <... mount resumed>) = -1 EIO (Input/output error) [pid 4629] close(3 [pid 4627] exit_group(0 [pid 4629] <... close resumed>) = 0 [pid 4627] <... exit_group resumed>) = ? [pid 4629] memfd_create("syzkaller", 0 [pid 4627] +++ exited with 0 +++ [pid 4629] <... memfd_create resumed>) = 3 [pid 4629] ftruncate(3, 0 [pid 4628] pipe2( [pid 4629] <... ftruncate resumed>) = 0 [pid 4628] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4629] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4627, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4629] <... openat resumed>) = 4 [pid 4628] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4629] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4629] <... ioctl resumed>) = 0 [pid 4628] <... write resumed>) = 21 [pid 4629] mkdir("./file0", 0777 [pid 4628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4629] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4629] pipe2([5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4629] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3616] <... ioctl resumed>) = 0 [pid 4629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4630 ./strace-static-x86_64: Process 4630 attached [pid 4630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4630] setpgid(0, 0) = 0 [pid 4630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4630] write(3, "1000", 4) = 4 [pid 4630] close(3) = 0 [pid 4630] memfd_create("syzkaller", 0) = 3 [pid 4630] ftruncate(3, 0) = 0 [pid 4630] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4630] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4630] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4630] pipe2([5, 6], 0) = 0 [pid 4630] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4631 ./strace-static-x86_64: Process 4631 attached [pid 4631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4625] <... mount resumed>) = -1 EIO (Input/output error) [pid 4625] exit_group(0) = ? [pid 4631] setpgid(0, 0) = 0 [pid 4631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4625] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4625, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4631] <... openat resumed>) = 3 [pid 4631] write(3, "1000", 4 [pid 4626] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4631] <... write resumed>) = 4 [pid 4631] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4631] <... close resumed>) = 0 [pid 4631] memfd_create("syzkaller", 0) = 3 [pid 4631] ftruncate(3, 0) = 0 [pid 4631] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4631] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4631] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4631] pipe2([5, 6], 0) = 0 [pid 4631] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4626] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4626] <... exit_group resumed>) = ? [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4632 [pid 4626] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4626, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4632 attached [pid 4632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4632] setpgid(0, 0) = 0 [pid 4632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4628] <... mount resumed>) = -1 EIO (Input/output error) [pid 4628] exit_group(0) = ? [pid 4632] <... openat resumed>) = 3 [pid 4629] <... mount resumed>) = -1 EIO (Input/output error) [pid 4628] +++ exited with 0 +++ [pid 4630] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4629] exit_group(0 [pid 4630] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4633 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4628, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4633 attached [pid 4632] write(3, "1000", 4 [pid 4630] <... exit_group resumed>) = ? [pid 4629] <... exit_group resumed>) = ? [pid 4632] <... write resumed>) = 4 [pid 4632] close(3) = 0 [pid 4632] memfd_create("syzkaller", 0) = 3 [pid 4632] ftruncate(3, 0) = 0 [pid 4630] +++ exited with 0 +++ [pid 4632] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4632] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4629] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4630, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4632] mkdir("./file0", 0777 [pid 4631] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4629, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4633] <... prctl resumed>) = 0 [pid 4632] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4631] exit_group(0 [pid 4633] setpgid(0, 0 [pid 4632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4631] <... exit_group resumed>) = ? [pid 4633] <... setpgid resumed>) = 0 [pid 4632] pipe2( [pid 4631] +++ exited with 0 +++ [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4632] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4632] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 4633] <... openat resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4631, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4633] write(3, "1000", 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4633] <... write resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4633] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] close(3 [pid 3616] close(3 [pid 4633] <... close resumed>) = 0 [pid 4633] memfd_create("syzkaller", 0 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4633] <... memfd_create resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4633] ftruncate(3, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4633] <... ftruncate resumed>) = 0 [pid 4633] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4634 [pid 4633] <... openat resumed>) = 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4635 [pid 4633] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4633] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4635 attached [pid 4633] pipe2([5, 6], 0) = 0 [pid 4633] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4635] <... prctl resumed>) = 0 [pid 4635] setpgid(0, 0) = 0 [pid 4635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4635] write(3, "1000", 4) = 4 [pid 4635] close(3./strace-static-x86_64: Process 4634 attached ) = 0 [pid 4632] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4635] memfd_create("syzkaller", 0 [pid 4632] exit_group(0 [pid 3620] close(3 [pid 3615] close(3 [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4635] <... memfd_create resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4635] ftruncate(3, 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4636 [pid 4635] <... ftruncate resumed>) = 0 [pid 4635] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4632] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4637 [pid 4635] ioctl(4, LOOP_SET_FD, 3 [pid 4634] <... prctl resumed>) = 0 [pid 4632] +++ exited with 0 +++ [pid 4635] <... ioctl resumed>) = 0 [pid 4634] setpgid(0, 0./strace-static-x86_64: Process 4637 attached ./strace-static-x86_64: Process 4636 attached [pid 4635] mkdir("./file0", 0777 [pid 4634] <... setpgid resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4632, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4635] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4637] <... prctl resumed>) = 0 [pid 4636] <... prctl resumed>) = 0 [pid 4635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4634] <... openat resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 4637] setpgid(0, 0 [pid 4636] setpgid(0, 0 [pid 4635] pipe2( [pid 4634] write(3, "1000", 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4635] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4634] <... write resumed>) = 4 [pid 4635] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4634] close(3 [pid 4635] <... write resumed>) = 21 [pid 4634] <... close resumed>) = 0 [pid 4635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4634] memfd_create("syzkaller", 0 [pid 4637] <... setpgid resumed>) = 0 [pid 4636] <... setpgid resumed>) = 0 [pid 4634] <... memfd_create resumed>) = 3 [pid 4637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4634] ftruncate(3, 0) = 0 [pid 4637] <... openat resumed>) = 3 [pid 4634] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4637] write(3, "1000", 4 [pid 4636] <... openat resumed>) = 3 [pid 4634] <... openat resumed>) = 4 [pid 4637] <... write resumed>) = 4 [pid 4634] ioctl(4, LOOP_SET_FD, 3 [pid 4633] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4637] close(3 [pid 4636] write(3, "1000", 4 [pid 4634] <... ioctl resumed>) = 0 [pid 4633] exit_group(0 [pid 3617] close(3 [pid 4637] <... close resumed>) = 0 [pid 4636] <... write resumed>) = 4 [pid 4634] mkdir("./file0", 0777 [pid 4633] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4637] memfd_create("syzkaller", 0 [pid 4636] close(3 [pid 4634] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4637] <... memfd_create resumed>) = 3 [pid 4636] <... close resumed>) = 0 [pid 4634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4633] +++ exited with 0 +++ [pid 4637] ftruncate(3, 0 [pid 4636] memfd_create("syzkaller", 0 [pid 4634] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4633, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4638 ./strace-static-x86_64: Process 4638 attached [pid 4637] <... ftruncate resumed>) = 0 [pid 4636] <... memfd_create resumed>) = 3 [pid 4634] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4637] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4636] ftruncate(3, 0 [pid 4635] <... mount resumed>) = -1 EIO (Input/output error) [pid 4634] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4635] exit_group(0 [pid 4634] <... write resumed>) = 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4638] <... prctl resumed>) = 0 [pid 4637] <... openat resumed>) = 4 [pid 4636] <... ftruncate resumed>) = 0 [pid 4635] <... exit_group resumed>) = ? [pid 4634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... openat resumed>) = 3 [pid 4638] setpgid(0, 0 [pid 4637] ioctl(4, LOOP_SET_FD, 3 [pid 4636] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4635] +++ exited with 0 +++ [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4638] <... setpgid resumed>) = 0 [pid 4637] <... ioctl resumed>) = 0 [pid 4636] <... openat resumed>) = 4 [pid 4638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4637] mkdir("./file0", 0777 [pid 4636] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4635, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4638] <... openat resumed>) = 3 [pid 4637] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4636] <... ioctl resumed>) = 0 [pid 4638] write(3, "1000", 4 [pid 4637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4636] mkdir("./file0", 0777 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4638] <... write resumed>) = 4 [pid 4637] pipe2( [pid 4636] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4638] close(3 [pid 4637] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... openat resumed>) = 3 [pid 4638] <... close resumed>) = 0 [pid 4637] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4636] pipe2( [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4636] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4638] memfd_create("syzkaller", 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4637] <... write resumed>) = 21 [pid 4636] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4638] <... memfd_create resumed>) = 3 [pid 3616] close(3 [pid 4638] ftruncate(3, 0 [pid 4637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4636] <... write resumed>) = 21 [pid 4638] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4638] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4638] <... openat resumed>) = 4 [pid 4634] <... mount resumed>) = -1 EIO (Input/output error) [pid 4638] ioctl(4, LOOP_SET_FD, 3 [pid 4634] exit_group(0 [pid 4638] <... ioctl resumed>) = 0 [pid 4634] <... exit_group resumed>) = ? [pid 4634] +++ exited with 0 +++ [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4639 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4634, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4638] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4638] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 4638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4638] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 4638] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3 [pid 4638] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4638] <... write resumed>) = 21 [pid 4638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4640 ./strace-static-x86_64: Process 4640 attached ./strace-static-x86_64: Process 4639 attached [pid 4640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4640] setpgid(0, 0) = 0 [pid 4639] <... prctl resumed>) = 0 [pid 4640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4639] setpgid(0, 0 [pid 4640] write(3, "1000", 4) = 4 [pid 4640] close(3) = 0 [pid 4639] <... setpgid resumed>) = 0 [pid 4640] memfd_create("syzkaller", 0) = 3 [pid 4639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4640] ftruncate(3, 0) = 0 [pid 4639] <... openat resumed>) = 3 [pid 4640] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4640] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4639] write(3, "1000", 4 [pid 4640] mkdir("./file0", 0777 [pid 4639] <... write resumed>) = 4 [pid 4640] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4639] close(3 [pid 4640] pipe2( [pid 4639] <... close resumed>) = 0 [pid 4640] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4640] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... ioctl resumed>) = 0 [pid 4640] <... write resumed>) = 21 [pid 3618] close(3 [pid 4640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4639] memfd_create("syzkaller", 0 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4639] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 4641 attached [pid 4639] ftruncate(3, 0 [pid 4641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4639] <... ftruncate resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4641 [pid 4639] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4639] ioctl(4, LOOP_SET_FD, 3 [pid 4641] <... prctl resumed>) = 0 [pid 4639] <... ioctl resumed>) = 0 [pid 4641] setpgid(0, 0) = 0 [pid 4639] mkdir("./file0", 0777 [pid 4641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4639] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4641] <... openat resumed>) = 3 [pid 4639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4641] write(3, "1000", 4 [pid 4639] pipe2( [pid 4641] <... write resumed>) = 4 [pid 4639] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4641] close(3 [pid 4639] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4641] <... close resumed>) = 0 [pid 4641] memfd_create("syzkaller", 0 [pid 4639] <... write resumed>) = 21 [pid 4641] <... memfd_create resumed>) = 3 [pid 4641] ftruncate(3, 0 [pid 4639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4641] <... ftruncate resumed>) = 0 [pid 4641] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4641] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4641] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4641] pipe2([5, 6], 0) = 0 [pid 4641] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4637] <... mount resumed>) = -1 EIO (Input/output error) [pid 4637] exit_group(0) = ? [pid 4637] +++ exited with 0 +++ [pid 4636] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4637, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4636] exit_group(0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4636] <... exit_group resumed>) = ? [pid 3620] <... restart_syscall resumed>) = 0 [pid 4636] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4636, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] close(3) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4642 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4643 attached , child_tidptr=0x5555570a1690) = 4643 [pid 4643] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4642 attached [pid 4642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4642] setpgid(0, 0 [pid 4643] <... prctl resumed>) = 0 [pid 4642] <... setpgid resumed>) = 0 [pid 4643] setpgid(0, 0 [pid 4642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4642] write(3, "1000", 4) = 4 [pid 4643] <... setpgid resumed>) = 0 [pid 4642] close(3 [pid 4643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4642] <... close resumed>) = 0 [pid 4643] <... openat resumed>) = 3 [pid 4642] memfd_create("syzkaller", 0 [pid 4643] write(3, "1000", 4 [pid 4642] <... memfd_create resumed>) = 3 [pid 4643] <... write resumed>) = 4 [pid 4642] ftruncate(3, 0 [pid 4643] close(3 [pid 4642] <... ftruncate resumed>) = 0 [pid 4643] <... close resumed>) = 0 [pid 4642] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4643] memfd_create("syzkaller", 0) = 3 [pid 4643] ftruncate(3, 0) = 0 [pid 4643] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4643] ioctl(4, LOOP_SET_FD, 3 [pid 4642] <... openat resumed>) = 4 [pid 4639] <... mount resumed>) = -1 EIO (Input/output error) [pid 4643] <... ioctl resumed>) = 0 [pid 4643] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4643] pipe2([5, 6], 0) = 0 [pid 4643] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4642] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4639] exit_group(0 [pid 4642] mkdir("./file0", 0777 [pid 4639] <... exit_group resumed>) = ? [pid 4642] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4639] +++ exited with 0 +++ [pid 4642] pipe2([5, 6], 0) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4639, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4642] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4642] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4644 ./strace-static-x86_64: Process 4644 attached [pid 4644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4644] setpgid(0, 0) = 0 [pid 4644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4644] write(3, "1000", 4) = 4 [pid 4644] close(3) = 0 [pid 4644] memfd_create("syzkaller", 0) = 3 [pid 4644] ftruncate(3, 0) = 0 [pid 4644] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4638] <... mount resumed>) = -1 EIO (Input/output error) [pid 4644] mkdir("./file0", 0777 [pid 4638] exit_group(0 [pid 4644] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4638] <... exit_group resumed>) = ? [pid 4644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4638] +++ exited with 0 +++ [pid 4644] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4638, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4644] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4644] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4645 [pid 4640] <... mount resumed>) = -1 EIO (Input/output error) [pid 4640] exit_group(0) = ? [pid 4640] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4640, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4645 attached [pid 4645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4641] <... mount resumed>) = -1 EIO (Input/output error) [pid 4645] <... prctl resumed>) = 0 [pid 4641] exit_group(0 [pid 4645] setpgid(0, 0) = 0 [pid 4641] <... exit_group resumed>) = ? [pid 4645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4645] write(3, "1000", 4) = 4 [pid 4645] close(3) = 0 [pid 4645] memfd_create("syzkaller", 0 [pid 4641] +++ exited with 0 +++ [pid 4645] <... memfd_create resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4641, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4645] ftruncate(3, 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4645] <... ftruncate resumed>) = 0 [pid 4643] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... restart_syscall resumed>) = 0 [pid 4645] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4643] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4645] <... openat resumed>) = 4 [pid 4643] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4645] ioctl(4, LOOP_SET_FD, 3 [pid 4643] +++ exited with 0 +++ [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4645] <... ioctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4643, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4645] mkdir("./file0", 0777 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4645] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4645] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4646 [pid 4645] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4645] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4645] <... write resumed>) = 21 [pid 4645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4646 attached [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4646] setpgid(0, 0 [pid 3615] close(3 [pid 4646] <... setpgid resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4646] <... openat resumed>) = 3 [pid 4646] write(3, "1000", 4) = 4 [pid 4646] close(3) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4647 [pid 4646] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4647 attached ) = 3 [pid 4646] ftruncate(3, 0) = 0 [pid 4646] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4646] ioctl(4, LOOP_SET_FD, 3 [pid 4647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4646] <... ioctl resumed>) = 0 [pid 4642] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4647] <... prctl resumed>) = 0 [pid 4646] mkdir("./file0", 0777 [pid 3618] close(3 [pid 4647] setpgid(0, 0 [pid 4646] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4642] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 4646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4647] <... setpgid resumed>) = 0 [pid 4646] pipe2( [pid 4642] <... exit_group resumed>) = ? [pid 4646] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4648 [pid 4647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4646] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4642] +++ exited with 0 +++ [pid 4647] <... openat resumed>) = 3 [pid 4646] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4642, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4648 attached [pid 4647] write(3, "1000", 4 [pid 4646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4648] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4647] <... write resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4647] close(3) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4647] memfd_create("syzkaller", 0) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4648] <... prctl resumed>) = 0 [pid 4647] ftruncate(3, 0 [pid 4644] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4648] setpgid(0, 0 [pid 4647] <... ftruncate resumed>) = 0 [pid 4644] exit_group(0) = ? [pid 4648] <... setpgid resumed>) = 0 [pid 4647] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4644] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4644, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4647] <... openat resumed>) = 4 [pid 4648] <... openat resumed>) = 3 [pid 4647] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4648] write(3, "1000", 4 [pid 4647] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4648] <... write resumed>) = 4 [pid 4647] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD) = 0 [pid 4648] close(3 [pid 4647] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 4648] <... close resumed>) = 0 [pid 4647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4648] memfd_create("syzkaller", 0 [pid 4647] pipe2( [pid 4648] <... memfd_create resumed>) = 3 [pid 4647] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4649 [pid 4648] ftruncate(3, 0 [pid 4647] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4648] <... ftruncate resumed>) = 0 [pid 4647] <... write resumed>) = 21 [pid 4648] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4648] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4649 attached [pid 4649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4648] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4648] pipe2( [pid 4649] <... prctl resumed>) = 0 [pid 4649] setpgid(0, 0 [pid 4648] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4648] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4649] <... setpgid resumed>) = 0 [pid 4648] <... write resumed>) = 21 [pid 4649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4649] <... openat resumed>) = 3 [pid 4649] write(3, "1000", 4) = 4 [pid 4649] close(3) = 0 [pid 4649] memfd_create("syzkaller", 0) = 3 [pid 4649] ftruncate(3, 0) = 0 [pid 4649] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4649] ioctl(4, LOOP_CLR_FD) = 0 [pid 4649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4649] close(4) = 0 [pid 4649] close(3) = 0 [pid 4649] pipe2([3, 4], 0) = 0 [pid 4649] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4650 ./strace-static-x86_64: Process 4650 attached [pid 4650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4645] <... mount resumed>) = -1 EIO (Input/output error) [pid 4650] <... prctl resumed>) = 0 [pid 4645] exit_group(0 [pid 4650] setpgid(0, 0 [pid 4645] <... exit_group resumed>) = ? [pid 4650] <... setpgid resumed>) = 0 [pid 4650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4645] +++ exited with 0 +++ [pid 4650] write(3, "1000", 4) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4645, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4650] close(3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4650] <... close resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4650] memfd_create("syzkaller", 0) = 3 [pid 4650] ftruncate(3, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4650] <... ftruncate resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4650] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4650] <... openat resumed>) = 4 [pid 4650] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4650] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4650] pipe2([5, 6], 0) = 0 [pid 4650] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4646] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4646] exit_group(0 [pid 3617] close(3 [pid 4646] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4646] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4646, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4651 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 4651 attached ) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... ioctl resumed>) = 0 [pid 4651] <... prctl resumed>) = 0 [pid 3619] close(3 [pid 4651] setpgid(0, 0 [pid 4648] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... close resumed>) = 0 [pid 4651] <... setpgid resumed>) = 0 [pid 4648] exit_group(0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4648] <... exit_group resumed>) = ? [pid 4651] <... openat resumed>) = 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4652 [pid 4651] write(3, "1000", 4 [pid 4648] +++ exited with 0 +++ [pid 4651] <... write resumed>) = 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4648, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4652 attached [pid 4651] close(3 [pid 4652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4651] <... close resumed>) = 0 [pid 4652] <... prctl resumed>) = 0 [pid 4651] memfd_create("syzkaller", 0 [pid 4652] setpgid(0, 0 [pid 4651] <... memfd_create resumed>) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4652] <... setpgid resumed>) = 0 [pid 4651] ftruncate(3, 0 [pid 3618] <... openat resumed>) = 3 [pid 4652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4651] <... ftruncate resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4652] <... openat resumed>) = 3 [pid 4651] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4652] write(3, "1000", 4 [pid 4651] <... openat resumed>) = 4 [pid 4652] <... write resumed>) = 4 [pid 4652] close(3) = 0 [pid 4652] memfd_create("syzkaller", 0) = 3 [pid 4652] ftruncate(3, 0) = 0 [pid 4652] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4652] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4652] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4651] ioctl(4, LOOP_SET_FD, 3 [pid 4652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4651] <... ioctl resumed>) = 0 [pid 4652] pipe2( [pid 4651] mkdir("./file0", 0777 [pid 4649] <... mount resumed>) = -1 EIO (Input/output error) [pid 4652] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4651] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4649] exit_group(0 [pid 4652] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4649] <... exit_group resumed>) = ? [pid 4652] <... write resumed>) = 21 [pid 4652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4651] pipe2([5, 6], 0) = 0 [pid 4651] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4649] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4649, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4647] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4647] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 4647] <... exit_group resumed>) = ? [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4647] +++ exited with 0 +++ [pid 3616] close(3./strace-static-x86_64: Process 4653 attached [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4653 [pid 3616] <... close resumed>) = 0 [pid 4653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4647, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4654 attached [pid 4653] <... prctl resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4653] setpgid(0, 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4654 [pid 4653] <... setpgid resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4653] <... openat resumed>) = 3 [pid 4654] <... prctl resumed>) = 0 [pid 4653] write(3, "1000", 4 [pid 4650] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4654] setpgid(0, 0 [pid 4653] <... write resumed>) = 4 [pid 4653] close(3 [pid 3615] <... openat resumed>) = 3 [pid 4654] <... setpgid resumed>) = 0 [pid 4653] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4653] memfd_create("syzkaller", 0 [pid 4650] exit_group(0 [pid 4654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... ioctl resumed>) = 0 [pid 4653] <... memfd_create resumed>) = 3 [pid 4650] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 4654] <... openat resumed>) = 3 [pid 4653] ftruncate(3, 0 [pid 4650] +++ exited with 0 +++ [pid 4654] write(3, "1000", 4 [pid 4653] <... ftruncate resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4654] <... write resumed>) = 4 [pid 4653] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4654] close(3 [pid 4653] <... openat resumed>) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4650, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4654] <... close resumed>) = 0 [pid 4653] ioctl(4, LOOP_SET_FD, 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4654] memfd_create("syzkaller", 0 [pid 4653] <... ioctl resumed>) = 0 [pid 4654] <... memfd_create resumed>) = 3 [pid 4653] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4655 [pid 4654] ftruncate(3, 0 [pid 4653] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4654] <... ftruncate resumed>) = 0 [pid 4653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4654] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4653] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 4654] <... openat resumed>) = 4 [pid 4653] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4654] ioctl(4, LOOP_SET_FD, 3 [pid 3620] close(3 [pid 4653] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4654] <... ioctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 4653] <... write resumed>) = 21 [pid 4654] mkdir("./file0", 0777 [pid 4653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4654] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4655 attached [pid 4655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4654] pipe2( [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4656 [pid 4655] <... prctl resumed>) = 0 [pid 4655] setpgid(0, 0) = 0 [pid 4655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4655] write(3, "1000", 4) = 4 [pid 4655] close(3) = 0 [pid 4655] memfd_create("syzkaller", 0./strace-static-x86_64: Process 4656 attached ) = 3 [pid 4656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4655] ftruncate(3, 0) = 0 [pid 4656] <... prctl resumed>) = 0 [pid 4655] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4656] setpgid(0, 0 [pid 4655] <... openat resumed>) = 4 [pid 4656] <... setpgid resumed>) = 0 [pid 4655] ioctl(4, LOOP_SET_FD, 3 [pid 4656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4655] <... ioctl resumed>) = 0 [pid 4656] <... openat resumed>) = 3 [pid 4655] mkdir("./file0", 0777 [pid 4656] write(3, "1000", 4 [pid 4655] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4656] <... write resumed>) = 4 [pid 4655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4656] close(3) = 0 [pid 4655] pipe2( [pid 4656] memfd_create("syzkaller", 0 [pid 4655] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4654] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4651] <... mount resumed>) = -1 EIO (Input/output error) [pid 4654] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4651] exit_group(0 [pid 4656] <... memfd_create resumed>) = 3 [pid 4655] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4656] ftruncate(3, 0 [pid 4655] <... write resumed>) = 21 [pid 4656] <... ftruncate resumed>) = 0 [pid 4655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4651] <... exit_group resumed>) = ? [pid 4656] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4652] <... mount resumed>) = -1 EIO (Input/output error) [pid 4651] +++ exited with 0 +++ [pid 4656] ioctl(4, LOOP_SET_FD, 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4651, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4656] <... ioctl resumed>) = 0 [pid 4652] exit_group(0 [pid 4656] mkdir("./file0", 0777 [pid 4652] <... exit_group resumed>) = ? [pid 4656] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4652] +++ exited with 0 +++ [pid 4656] pipe2( [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4652, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4656] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4656] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4656] <... write resumed>) = 21 [pid 4656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... openat resumed>) = 3 [pid 4653] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3619] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4653] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4653] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... close resumed>) = 0 [pid 4653] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4657 attached [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4653, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4657 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4658 [pid 4657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4658 attached [pid 4657] setpgid(0, 0 [pid 4654] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... openat resumed>) = 3 [pid 4658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4657] <... setpgid resumed>) = 0 [pid 4654] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4658] <... prctl resumed>) = 0 [pid 4657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4654] <... exit_group resumed>) = ? [pid 4658] setpgid(0, 0 [pid 4657] <... openat resumed>) = 3 [pid 4654] +++ exited with 0 +++ [pid 4658] <... setpgid resumed>) = 0 [pid 4657] write(3, "1000", 4 [pid 4658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4657] <... write resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4654, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4658] <... openat resumed>) = 3 [pid 4657] close(3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4658] write(3, "1000", 4 [pid 4657] <... close resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4658] <... write resumed>) = 4 [pid 4657] memfd_create("syzkaller", 0 [pid 4658] close(3 [pid 4657] <... memfd_create resumed>) = 3 [pid 4658] <... close resumed>) = 0 [pid 4657] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4658] memfd_create("syzkaller", 0 [pid 4657] <... ftruncate resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4658] <... memfd_create resumed>) = 3 [pid 4657] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4658] ftruncate(3, 0 [pid 4657] <... openat resumed>) = 4 [pid 4658] <... ftruncate resumed>) = 0 [pid 4657] ioctl(4, LOOP_SET_FD, 3 [pid 4658] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4657] <... ioctl resumed>) = 0 [pid 4658] <... openat resumed>) = 4 [pid 4657] mkdir("./file0", 0777 [pid 4658] ioctl(4, LOOP_SET_FD, 3 [pid 4657] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4658] <... ioctl resumed>) = 0 [pid 4657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4658] mkdir("./file0", 0777 [pid 4657] pipe2( [pid 4658] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4657] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4657] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4658] pipe2( [pid 4657] <... write resumed>) = 21 [pid 4658] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4658] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4656] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 3616] close(3 [pid 4656] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4656] <... exit_group resumed>) = ? [pid 4655] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4656] +++ exited with 0 +++ [pid 4655] exit_group(0) = ? [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4656, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4659 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4660 [pid 4655] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4655, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4660 attached [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4660] <... prctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4660] setpgid(0, 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] close(3 [pid 4660] <... setpgid resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4661 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4660] <... openat resumed>) = 3 [pid 4660] write(3, "1000", 4 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4662 [pid 4660] <... write resumed>) = 4 [pid 4660] close(3./strace-static-x86_64: Process 4661 attached ) = 0 [pid 4661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4660] memfd_create("syzkaller", 0 [pid 4661] <... prctl resumed>) = 0 [pid 4660] <... memfd_create resumed>) = 3 [pid 4661] setpgid(0, 0 [pid 4660] ftruncate(3, 0./strace-static-x86_64: Process 4659 attached ./strace-static-x86_64: Process 4662 attached [pid 4661] <... setpgid resumed>) = 0 [pid 4660] <... ftruncate resumed>) = 0 [pid 4661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4660] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4662] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4661] <... openat resumed>) = 3 [pid 4660] <... openat resumed>) = 4 [pid 4659] <... prctl resumed>) = 0 [pid 4662] <... prctl resumed>) = 0 [pid 4661] write(3, "1000", 4 [pid 4660] ioctl(4, LOOP_SET_FD, 3 [pid 4659] setpgid(0, 0 [pid 4662] setpgid(0, 0 [pid 4661] <... write resumed>) = 4 [pid 4660] <... ioctl resumed>) = 0 [pid 4659] <... setpgid resumed>) = 0 [pid 4661] close(3 [pid 4660] mkdir("./file0", 0777 [pid 4659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4662] <... setpgid resumed>) = 0 [pid 4661] <... close resumed>) = 0 [pid 4660] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4659] <... openat resumed>) = 3 [pid 4662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4661] memfd_create("syzkaller", 0 [pid 4660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4659] write(3, "1000", 4 [pid 4662] <... openat resumed>) = 3 [pid 4661] <... memfd_create resumed>) = 3 [pid 4660] pipe2( [pid 4659] <... write resumed>) = 4 [pid 4662] write(3, "1000", 4 [pid 4661] ftruncate(3, 0 [pid 4660] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4659] close(3 [pid 4662] <... write resumed>) = 4 [pid 4661] <... ftruncate resumed>) = 0 [pid 4660] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4659] <... close resumed>) = 0 [pid 4662] close(3 [pid 4661] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4660] <... write resumed>) = 21 [pid 4659] memfd_create("syzkaller", 0 [pid 4662] <... close resumed>) = 0 [pid 4661] <... openat resumed>) = 4 [pid 4660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4659] <... memfd_create resumed>) = 3 [pid 4662] memfd_create("syzkaller", 0 [pid 4661] ioctl(4, LOOP_SET_FD, 3 [pid 4659] ftruncate(3, 0 [pid 4662] <... memfd_create resumed>) = 3 [pid 4661] <... ioctl resumed>) = 0 [pid 4659] <... ftruncate resumed>) = 0 [pid 4662] ftruncate(3, 0 [pid 4661] mkdir("./file0", 0777 [pid 4659] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4662] <... ftruncate resumed>) = 0 [pid 4661] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4659] <... openat resumed>) = 4 [pid 4662] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4659] ioctl(4, LOOP_SET_FD, 3 [pid 4661] pipe2([5, 6], 0) = 0 [pid 4661] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4662] <... openat resumed>) = 4 [pid 4659] <... ioctl resumed>) = 0 [pid 4662] ioctl(4, LOOP_SET_FD, 3 [pid 4658] <... mount resumed>) = -1 EIO (Input/output error) [pid 4662] <... ioctl resumed>) = 0 [pid 4659] mkdir("./file0", 0777 [pid 4662] mkdir("./file0", 0777 [pid 4659] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4658] exit_group(0 [pid 4662] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4658] <... exit_group resumed>) = ? [pid 4662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4659] pipe2( [pid 4658] +++ exited with 0 +++ [pid 4662] pipe2( [pid 4659] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4658, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4662] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4659] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4662] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4659] <... write resumed>) = 21 [pid 3619] <... ioctl resumed>) = 0 [pid 4662] <... write resumed>) = 21 [pid 4659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] close(3 [pid 4662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4663 ./strace-static-x86_64: Process 4663 attached [pid 4663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4663] setpgid(0, 0) = 0 [pid 4663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4657] <... mount resumed>) = -1 EIO (Input/output error) [pid 4663] <... openat resumed>) = 3 [pid 4663] write(3, "1000", 4 [pid 4657] exit_group(0 [pid 4663] <... write resumed>) = 4 [pid 4663] close(3) = 0 [pid 4663] memfd_create("syzkaller", 0 [pid 4657] <... exit_group resumed>) = ? [pid 4663] <... memfd_create resumed>) = 3 [pid 4663] ftruncate(3, 0) = 0 [pid 4657] +++ exited with 0 +++ [pid 4663] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4657, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4663] ioctl(4, LOOP_SET_FD, 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4663] <... ioctl resumed>) = 0 [pid 4661] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... restart_syscall resumed>) = 0 [pid 4663] mkdir("./file0", 0777 [pid 4661] exit_group(0 [pid 4663] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4661] <... exit_group resumed>) = ? [pid 4663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4661] +++ exited with 0 +++ [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4663] pipe2( [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4661, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... openat resumed>) = 3 [pid 4663] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4663] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4659] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] close(3 [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4659] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4664 attached [pid 4659] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4664 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4665 [pid 4659] +++ exited with 0 +++ [pid 4664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4659, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4664] <... prctl resumed>) = 0 [pid 4664] setpgid(0, 0./strace-static-x86_64: Process 4665 attached ) = 0 [pid 4664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4664] <... openat resumed>) = 3 [pid 4665] <... prctl resumed>) = 0 [pid 4664] write(3, "1000", 4 [pid 4665] setpgid(0, 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4665] <... setpgid resumed>) = 0 [pid 4660] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... openat resumed>) = 3 [pid 4665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4660] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4665] <... openat resumed>) = 3 [pid 4660] <... exit_group resumed>) = ? [pid 3618] <... ioctl resumed>) = 0 [pid 4665] write(3, "1000", 4 [pid 4660] +++ exited with 0 +++ [pid 3618] close(3) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4660, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4666 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4665] <... write resumed>) = 4 [pid 4664] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4665] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4666 attached [pid 4665] <... close resumed>) = 0 [pid 4664] close(3 [pid 4666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4665] memfd_create("syzkaller", 0 [pid 4664] <... close resumed>) = 0 [pid 4666] <... prctl resumed>) = 0 [pid 4665] <... memfd_create resumed>) = 3 [pid 4664] memfd_create("syzkaller", 0 [pid 4666] setpgid(0, 0 [pid 4665] ftruncate(3, 0 [pid 4664] <... memfd_create resumed>) = 3 [pid 4666] <... setpgid resumed>) = 0 [pid 4665] <... ftruncate resumed>) = 0 [pid 4664] ftruncate(3, 0 [pid 4666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4665] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4664] <... ftruncate resumed>) = 0 [pid 4666] <... openat resumed>) = 3 [pid 4665] <... openat resumed>) = 4 [pid 4664] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4666] write(3, "1000", 4 [pid 4665] ioctl(4, LOOP_SET_FD, 3 [pid 4664] <... openat resumed>) = 4 [pid 4666] <... write resumed>) = 4 [pid 4665] <... ioctl resumed>) = 0 [pid 4664] ioctl(4, LOOP_SET_FD, 3 [pid 4666] close(3 [pid 4665] mkdir("./file0", 0777 [pid 4664] <... ioctl resumed>) = 0 [pid 4666] <... close resumed>) = 0 [pid 4665] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4664] mkdir("./file0", 0777 [pid 4666] memfd_create("syzkaller", 0 [pid 4665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4664] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4666] <... memfd_create resumed>) = 3 [pid 4665] pipe2( [pid 4664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4666] ftruncate(3, 0 [pid 4665] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4664] pipe2( [pid 4666] <... ftruncate resumed>) = 0 [pid 4665] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4664] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4666] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4665] <... write resumed>) = 21 [pid 4666] <... openat resumed>) = 4 [pid 4665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4664] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4666] ioctl(4, LOOP_CLR_FD) = 0 [pid 4666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 4666] close(4) = 0 [pid 4666] close(3) = 0 [pid 4666] pipe2([3, 4], 0) = 0 [pid 4666] write(4, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 4664] <... write resumed>) = 21 [pid 4664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4667 ./strace-static-x86_64: Process 4667 attached [pid 4667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4667] setpgid(0, 0) = 0 [pid 4667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4667] write(3, "1000", 4) = 4 [pid 4667] close(3) = 0 [pid 4667] memfd_create("syzkaller", 0 [pid 4662] <... mount resumed>) = -1 EIO (Input/output error) [pid 4667] <... memfd_create resumed>) = 3 [pid 4664] <... mount resumed>) = -1 EIO (Input/output error) [pid 4662] exit_group(0 [pid 4667] ftruncate(3, 0 [pid 4664] exit_group(0 [pid 4662] <... exit_group resumed>) = ? [pid 4667] <... ftruncate resumed>) = 0 [pid 4664] <... exit_group resumed>) = ? [pid 4667] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4662] +++ exited with 0 +++ [pid 4667] ioctl(4, LOOP_SET_FD, 3 [pid 4664] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4662, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4664, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4667] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 4667] mkdir("./file0", 0777 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4667] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4667] pipe2([5, 6], 0) = 0 [pid 4667] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4663] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4663] exit_group(0 [pid 3620] close(3 [pid 3615] close(3 [pid 4663] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4663] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4668 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4663, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4669 ./strace-static-x86_64: Process 4668 attached [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] <... openat resumed>) = 3 [pid 4668] <... prctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4668] setpgid(0, 0./strace-static-x86_64: Process 4669 attached ) = 0 [pid 4669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4668] write(3, "1000", 4) = 4 [pid 4668] close(3) = 0 [pid 4669] <... prctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4669] setpgid(0, 0 [pid 4668] memfd_create("syzkaller", 0 [pid 3619] close(3 [pid 4668] <... memfd_create resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 4668] ftruncate(3, 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4669] <... setpgid resumed>) = 0 [pid 4668] <... ftruncate resumed>) = 0 [pid 4665] <... mount resumed>) = -1 EIO (Input/output error) [pid 4669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4668] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4665] exit_group(0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4670 ./strace-static-x86_64: Process 4670 attached [pid 4669] <... openat resumed>) = 3 [pid 4668] <... openat resumed>) = 4 [pid 4665] <... exit_group resumed>) = ? [pid 4670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4669] write(3, "1000", 4 [pid 4668] ioctl(4, LOOP_SET_FD, 3 [pid 4665] +++ exited with 0 +++ [pid 4670] <... prctl resumed>) = 0 [pid 4669] <... write resumed>) = 4 [pid 4668] <... ioctl resumed>) = 0 [pid 4670] setpgid(0, 0 [pid 4669] close(3 [pid 4668] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4665, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4670] <... setpgid resumed>) = 0 [pid 4669] <... close resumed>) = 0 [pid 4668] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4666] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4669] memfd_create("syzkaller", 0 [pid 4668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4666] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 4670] <... openat resumed>) = 3 [pid 4669] <... memfd_create resumed>) = 3 [pid 4668] pipe2( [pid 4666] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4670] write(3, "1000", 4 [pid 4669] ftruncate(3, 0 [pid 4668] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4666] +++ exited with 0 +++ [pid 4670] <... write resumed>) = 4 [pid 4669] <... ftruncate resumed>) = 0 [pid 4668] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4666, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4670] close(3 [pid 4669] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4668] <... write resumed>) = 21 [pid 4670] <... close resumed>) = 0 [pid 4669] <... openat resumed>) = 4 [pid 4668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4670] memfd_create("syzkaller", 0 [pid 4669] ioctl(4, LOOP_SET_FD, 3 [pid 4670] <... memfd_create resumed>) = 3 [pid 4669] <... ioctl resumed>) = 0 [pid 4670] ftruncate(3, 0 [pid 4669] mkdir("./file0", 0777 [pid 4670] <... ftruncate resumed>) = 0 [pid 4669] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4670] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4670] <... openat resumed>) = 4 [pid 4669] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4670] ioctl(4, LOOP_SET_FD, 3 [pid 4669] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 4669] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] close(3 [pid 4670] <... ioctl resumed>) = 0 [pid 4669] <... write resumed>) = 21 [pid 3618] <... close resumed>) = 0 [pid 4670] mkdir("./file0", 0777 [pid 4669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4667] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... ioctl resumed>) = 0 [pid 4670] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4667] exit_group(0 [pid 4670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4667] <... exit_group resumed>) = ? [pid 4670] pipe2( [pid 4667] +++ exited with 0 +++ [pid 4670] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4670] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4667, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... close resumed>) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4671 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4672 attached ./strace-static-x86_64: Process 4671 attached [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4672 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4672] <... prctl resumed>) = 0 [pid 4671] <... prctl resumed>) = 0 [pid 4672] setpgid(0, 0 [pid 4671] setpgid(0, 0 [pid 4672] <... setpgid resumed>) = 0 [pid 4671] <... setpgid resumed>) = 0 [pid 4672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4672] <... openat resumed>) = 3 [pid 4672] write(3, "1000", 4 [pid 4671] <... openat resumed>) = 3 [pid 4672] <... write resumed>) = 4 [pid 4671] write(3, "1000", 4 [pid 4672] close(3 [pid 4671] <... write resumed>) = 4 [pid 4672] <... close resumed>) = 0 [pid 4671] close(3 [pid 4672] memfd_create("syzkaller", 0 [pid 4671] <... close resumed>) = 0 [pid 4672] <... memfd_create resumed>) = 3 [pid 4672] ftruncate(3, 0 [pid 4671] memfd_create("syzkaller", 0 [pid 4672] <... ftruncate resumed>) = 0 [pid 4671] <... memfd_create resumed>) = 3 [pid 4672] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4671] ftruncate(3, 0 [pid 4672] <... openat resumed>) = 4 [pid 4671] <... ftruncate resumed>) = 0 [pid 4672] ioctl(4, LOOP_SET_FD, 3 [pid 4671] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4672] <... ioctl resumed>) = 0 [pid 4671] <... openat resumed>) = 4 [pid 4668] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4672] mkdir("./file0", 0777 [pid 4671] ioctl(4, LOOP_SET_FD, 3 [pid 4668] exit_group(0 [pid 3616] close(3 [pid 4671] <... ioctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4672] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4671] mkdir("./file0", 0777 [pid 4668] <... exit_group resumed>) = ? [pid 4672] pipe2( [pid 4671] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4668] +++ exited with 0 +++ [pid 4672] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4668, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4672] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4671] pipe2( [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4673 [pid 4672] <... write resumed>) = 21 [pid 4671] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4671] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4671] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4673 attached ) = 3 [pid 4671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4673] setpgid(0, 0) = 0 [pid 4673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4673] write(3, "1000", 4) = 4 [pid 4673] close(3) = 0 [pid 4673] memfd_create("syzkaller", 0) = 3 [pid 4673] ftruncate(3, 0) = 0 [pid 4673] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4673] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4673] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4673] pipe2([5, 6], 0) = 0 [pid 4673] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4670] <... mount resumed>) = -1 EIO (Input/output error) [pid 4670] exit_group(0) = ? [pid 4670] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4670, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4669] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4669] exit_group(0 [pid 3620] close(3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4669] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4669] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4669, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4674 [pid 4672] <... mount resumed>) = -1 EIO (Input/output error) [pid 4672] exit_group(0) = ? ./strace-static-x86_64: Process 4674 attached [pid 4672] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4672, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4674] <... prctl resumed>) = 0 [pid 4674] setpgid(0, 0) = 0 [pid 4671] <... mount resumed>) = -1 EIO (Input/output error) [pid 4674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4671] exit_group(0 [pid 4674] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4674] write(3, "1000", 4 [pid 4671] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3615] close(3 [pid 4674] <... write resumed>) = 4 [pid 4671] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4674] close(3 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4671, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] close(3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4674] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 ./strace-static-x86_64: Process 4676 attached [pid 4674] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4675 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4674] <... memfd_create resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4676 [pid 4674] ftruncate(3, 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4677 ./strace-static-x86_64: Process 4675 attached [pid 4674] <... ftruncate resumed>) = 0 [pid 4673] <... mount resumed>) = -1 EIO (Input/output error) [pid 4676] <... prctl resumed>) = 0 [pid 4675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4674] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4673] exit_group(0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4677 attached [pid 4676] setpgid(0, 0 [pid 4675] <... prctl resumed>) = 0 [pid 4674] <... openat resumed>) = 4 [pid 4673] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 4677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4675] setpgid(0, 0 [pid 4674] ioctl(4, LOOP_SET_FD, 3 [pid 4673] +++ exited with 0 +++ [pid 4676] <... setpgid resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4677] <... prctl resumed>) = 0 [pid 4676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4675] <... setpgid resumed>) = 0 [pid 4674] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4677] setpgid(0, 0 [pid 4676] <... openat resumed>) = 3 [pid 4675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4674] mkdir("./file0", 0777 [pid 3618] close(3 [pid 4677] <... setpgid resumed>) = 0 [pid 4676] write(3, "1000", 4 [pid 4675] <... openat resumed>) = 3 [pid 4674] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4673, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4676] <... write resumed>) = 4 [pid 4675] write(3, "1000", 4 [pid 4674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4677] <... openat resumed>) = 3 [pid 4676] close(3 [pid 4675] <... write resumed>) = 4 [pid 4674] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 4677] write(3, "1000", 4 [pid 4676] <... close resumed>) = 0 [pid 4675] close(3 [pid 4674] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4678 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4677] <... write resumed>) = 4 [pid 4676] memfd_create("syzkaller", 0 [pid 4675] <... close resumed>) = 0 [pid 4674] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... ioctl resumed>) = 0 [pid 4677] close(3 [pid 4676] <... memfd_create resumed>) = 3 [pid 4675] memfd_create("syzkaller", 0 [pid 4674] <... write resumed>) = 21 [pid 3616] close(3./strace-static-x86_64: Process 4678 attached [pid 4677] <... close resumed>) = 0 [pid 4676] ftruncate(3, 0 [pid 4675] <... memfd_create resumed>) = 3 [pid 4674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... close resumed>) = 0 [pid 4678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4677] memfd_create("syzkaller", 0 [pid 4676] <... ftruncate resumed>) = 0 [pid 4675] ftruncate(3, 0 [pid 4678] <... prctl resumed>) = 0 [pid 4677] <... memfd_create resumed>) = 3 [pid 4675] <... ftruncate resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4678] setpgid(0, 0 [pid 4677] ftruncate(3, 0 [pid 4675] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4678] <... setpgid resumed>) = 0 [pid 4677] <... ftruncate resumed>) = 0 [pid 4676] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4675] <... openat resumed>) = 4 [pid 4678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4677] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4676] <... openat resumed>) = 4 [pid 4675] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4679 [pid 4678] <... openat resumed>) = 3 [pid 4677] <... openat resumed>) = 4 [pid 4676] ioctl(4, LOOP_SET_FD, 3 [pid 4675] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 4679 attached [pid 4678] write(3, "1000", 4 [pid 4677] ioctl(4, LOOP_SET_FD, 3 [pid 4676] <... ioctl resumed>) = 0 [pid 4675] mkdir("./file0", 0777 [pid 4679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4678] <... write resumed>) = 4 [pid 4677] <... ioctl resumed>) = 0 [pid 4676] mkdir("./file0", 0777 [pid 4675] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4679] <... prctl resumed>) = 0 [pid 4678] close(3 [pid 4677] mkdir("./file0", 0777 [pid 4676] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4679] setpgid(0, 0 [pid 4678] <... close resumed>) = 0 [pid 4677] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4675] pipe2( [pid 4679] <... setpgid resumed>) = 0 [pid 4678] memfd_create("syzkaller", 0 [pid 4677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4676] pipe2( [pid 4675] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4678] <... memfd_create resumed>) = 3 [pid 4677] pipe2( [pid 4676] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4675] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4679] <... openat resumed>) = 3 [pid 4678] ftruncate(3, 0 [pid 4677] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4676] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4675] <... write resumed>) = 21 [pid 4679] write(3, "1000", 4 [pid 4678] <... ftruncate resumed>) = 0 [pid 4677] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4676] <... write resumed>) = 21 [pid 4675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4679] <... write resumed>) = 4 [pid 4678] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4677] <... write resumed>) = 21 [pid 4676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4679] close(3 [pid 4678] <... openat resumed>) = 4 [pid 4677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4679] <... close resumed>) = 0 [pid 4678] ioctl(4, LOOP_SET_FD, 3 [pid 4679] memfd_create("syzkaller", 0 [pid 4678] <... ioctl resumed>) = 0 [pid 4679] <... memfd_create resumed>) = 3 [pid 4678] mkdir("./file0", 0777 [pid 4679] ftruncate(3, 0 [pid 4678] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4679] <... ftruncate resumed>) = 0 [pid 4678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4679] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4678] pipe2( [pid 4679] <... openat resumed>) = 4 [pid 4678] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4679] ioctl(4, LOOP_SET_FD, 3 [pid 4678] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4679] <... ioctl resumed>) = 0 [pid 4678] <... write resumed>) = 21 [pid 4679] mkdir("./file0", 0777 [pid 4678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4679] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4679] pipe2([5, 6], 0) = 0 [pid 4679] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4674] <... mount resumed>) = -1 EIO (Input/output error) [pid 4674] exit_group(0) = ? [pid 4674] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4674, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4676] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 4676] exit_group(0 [pid 3620] close(3 [pid 4676] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4676] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4680 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4676, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4680 attached [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4680] setpgid(0, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4680] <... setpgid resumed>) = 0 [pid 4680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4680] write(3, "1000", 4) = 4 [pid 4680] close(3) = 0 [pid 4680] memfd_create("syzkaller", 0) = 3 [pid 4680] ftruncate(3, 0) = 0 [pid 4680] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4680] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4680] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4677] <... mount resumed>) = -1 EIO (Input/output error) [pid 4680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4680] pipe2([5, 6], 0) = 0 [pid 4677] exit_group(0 [pid 4680] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4677] <... exit_group resumed>) = ? [pid 4680] <... write resumed>) = 21 [pid 4680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4677] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4677, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4681 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4681 attached [pid 4681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4682 [pid 4681] <... prctl resumed>) = 0 [pid 4681] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4682 attached [pid 4681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4682] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4681] <... openat resumed>) = 3 [pid 4682] <... prctl resumed>) = 0 [pid 4681] write(3, "1000", 4 [pid 4682] setpgid(0, 0 [pid 4681] <... write resumed>) = 4 [pid 4675] <... mount resumed>) = -1 EIO (Input/output error) [pid 4682] <... setpgid resumed>) = 0 [pid 4681] close(3 [pid 4675] exit_group(0 [pid 4682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4681] <... close resumed>) = 0 [pid 4675] <... exit_group resumed>) = ? [pid 4682] <... openat resumed>) = 3 [pid 4681] memfd_create("syzkaller", 0 [pid 4682] write(3, "1000", 4 [pid 4681] <... memfd_create resumed>) = 3 [pid 4675] +++ exited with 0 +++ [pid 4682] <... write resumed>) = 4 [pid 4681] ftruncate(3, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4675, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4682] close(3 [pid 4681] <... ftruncate resumed>) = 0 [pid 4682] <... close resumed>) = 0 [pid 4681] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4682] memfd_create("syzkaller", 0 [pid 4681] <... openat resumed>) = 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4682] <... memfd_create resumed>) = 3 [pid 4681] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... openat resumed>) = 3 [pid 4682] ftruncate(3, 0 [pid 4681] <... ioctl resumed>) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4682] <... ftruncate resumed>) = 0 [pid 4681] mkdir("./file0", 0777 [pid 3619] <... ioctl resumed>) = 0 [pid 4682] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4681] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] close(3 [pid 4682] <... openat resumed>) = 4 [pid 4681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... close resumed>) = 0 [pid 4682] ioctl(4, LOOP_SET_FD, 3 [pid 4681] pipe2( [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4682] <... ioctl resumed>) = 0 [pid 4681] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4682] mkdir("./file0", 0777 [pid 4681] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4683 [pid 4682] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4681] <... write resumed>) = 21 [pid 4682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4682] pipe2([5, 6], 0) = 0 ./strace-static-x86_64: Process 4683 attached [pid 4682] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4682] <... write resumed>) = 21 [pid 4683] <... prctl resumed>) = 0 [pid 4682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4683] setpgid(0, 0) = 0 [pid 4683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4679] <... mount resumed>) = -1 EIO (Input/output error) [pid 4683] <... openat resumed>) = 3 [pid 4679] exit_group(0 [pid 4683] write(3, "1000", 4 [pid 4679] <... exit_group resumed>) = ? [pid 4683] <... write resumed>) = 4 [pid 4683] close(3 [pid 4679] +++ exited with 0 +++ [pid 4683] <... close resumed>) = 0 [pid 4683] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4679, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4683] <... memfd_create resumed>) = 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4683] ftruncate(3, 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4683] <... ftruncate resumed>) = 0 [pid 4683] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4678] <... mount resumed>) = -1 EIO (Input/output error) [pid 4683] <... openat resumed>) = 4 [pid 4678] exit_group(0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4683] ioctl(4, LOOP_SET_FD, 3 [pid 4678] <... exit_group resumed>) = ? [pid 3616] <... openat resumed>) = 3 [pid 4683] <... ioctl resumed>) = 0 [pid 4678] +++ exited with 0 +++ [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4683] mkdir("./file0", 0777 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4678, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... ioctl resumed>) = 0 [pid 4683] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 4683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 4683] pipe2( [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4683] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4683] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4684 [pid 4683] <... write resumed>) = 21 [pid 3618] <... ioctl resumed>) = 0 [pid 4683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4684 attached , child_tidptr=0x5555570a1690) = 4685 [pid 4684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4684] setpgid(0, 0./strace-static-x86_64: Process 4685 attached ) = 0 [pid 4685] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4685] <... prctl resumed>) = 0 [pid 4684] <... openat resumed>) = 3 [pid 4685] setpgid(0, 0 [pid 4684] write(3, "1000", 4 [pid 4685] <... setpgid resumed>) = 0 [pid 4684] <... write resumed>) = 4 [pid 4685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4684] close(3 [pid 4685] <... openat resumed>) = 3 [pid 4684] <... close resumed>) = 0 [pid 4685] write(3, "1000", 4 [pid 4684] memfd_create("syzkaller", 0 [pid 4685] <... write resumed>) = 4 [pid 4684] <... memfd_create resumed>) = 3 [pid 4680] <... mount resumed>) = -1 EIO (Input/output error) [pid 4685] close(3 [pid 4684] ftruncate(3, 0 [pid 4680] exit_group(0 [pid 4685] <... close resumed>) = 0 [pid 4684] <... ftruncate resumed>) = 0 [pid 4680] <... exit_group resumed>) = ? [pid 4685] memfd_create("syzkaller", 0 [pid 4684] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4680] +++ exited with 0 +++ [pid 4685] <... memfd_create resumed>) = 3 [pid 4684] <... openat resumed>) = 4 [pid 4685] ftruncate(3, 0 [pid 4684] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4680, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4685] <... ftruncate resumed>) = 0 [pid 4684] <... ioctl resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4685] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4684] mkdir("./file0", 0777 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4685] <... openat resumed>) = 4 [pid 4684] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4685] ioctl(4, LOOP_SET_FD, 3 [pid 4684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4685] <... ioctl resumed>) = 0 [pid 4684] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4685] mkdir("./file0", 0777 [pid 4684] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4685] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4684] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4684] <... write resumed>) = 21 [pid 4685] pipe2( [pid 4684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4685] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4685] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4681] <... mount resumed>) = -1 EIO (Input/output error) [pid 4681] exit_group(0) = ? [pid 4681] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4681, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] close(3 [pid 3617] <... openat resumed>) = 3 [pid 4682] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4682] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4682] <... exit_group resumed>) = ? [pid 4682] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4686 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4682, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 4686 attached [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4686] setpgid(0, 0 [pid 4683] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4686] <... setpgid resumed>) = 0 [pid 4683] exit_group(0 [pid 3615] <... ioctl resumed>) = 0 [pid 4686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4683] <... exit_group resumed>) = ? [pid 3615] close(3 [pid 4686] <... openat resumed>) = 3 [pid 4683] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 [pid 4686] write(3, "1000", 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4686] <... write resumed>) = 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4683, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... ioctl resumed>) = 0 [pid 4686] close(3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3617] close(3 [pid 4686] <... close resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4687 [pid 4686] memfd_create("syzkaller", 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4687 attached [pid 4686] <... memfd_create resumed>) = 3 [pid 4687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4686] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4688 [pid 4687] <... prctl resumed>) = 0 [pid 4686] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4687] setpgid(0, 0 [pid 4686] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4688 attached [pid 4687] <... setpgid resumed>) = 0 [pid 4686] <... openat resumed>) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4686] ioctl(4, LOOP_SET_FD, 3 [pid 3619] close(3 [pid 4688] <... prctl resumed>) = 0 [pid 4687] <... openat resumed>) = 3 [pid 4686] <... ioctl resumed>) = 0 [pid 4684] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... close resumed>) = 0 [pid 4688] setpgid(0, 0 [pid 4687] write(3, "1000", 4 [pid 4686] mkdir("./file0", 0777 [pid 4684] exit_group(0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4688] <... setpgid resumed>) = 0 [pid 4687] <... write resumed>) = 4 [pid 4686] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4684] <... exit_group resumed>) = ? [pid 4688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4687] close(3 [pid 4686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4684] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4689 [pid 4688] <... openat resumed>) = 3 [pid 4687] <... close resumed>) = 0 [pid 4686] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4684, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4688] write(3, "1000", 4 [pid 4687] memfd_create("syzkaller", 0 [pid 4686] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4689 attached [pid 4688] <... write resumed>) = 4 [pid 4687] <... memfd_create resumed>) = 3 [pid 4686] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4688] close(3 [pid 4687] ftruncate(3, 0 [pid 4686] <... write resumed>) = 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4689] <... prctl resumed>) = 0 [pid 4688] <... close resumed>) = 0 [pid 4687] <... ftruncate resumed>) = 0 [pid 4686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... openat resumed>) = 3 [pid 4689] setpgid(0, 0 [pid 4688] memfd_create("syzkaller", 0 [pid 4687] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4689] <... setpgid resumed>) = 0 [pid 4688] <... memfd_create resumed>) = 3 [pid 4687] <... openat resumed>) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 4689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4688] ftruncate(3, 0 [pid 4687] ioctl(4, LOOP_SET_FD, 3 [pid 3616] close(3 [pid 4689] <... openat resumed>) = 3 [pid 4688] <... ftruncate resumed>) = 0 [pid 4687] <... ioctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4689] write(3, "1000", 4 [pid 4688] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4687] mkdir("./file0", 0777 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4689] <... write resumed>) = 4 [pid 4688] <... openat resumed>) = 4 [pid 4687] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4689] close(3 [pid 4688] ioctl(4, LOOP_SET_FD, 3 [pid 4687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4690 [pid 4689] <... close resumed>) = 0 [pid 4688] <... ioctl resumed>) = 0 [pid 4687] pipe2( [pid 4685] <... mount resumed>) = -1 EIO (Input/output error) [pid 4689] memfd_create("syzkaller", 0 [pid 4688] mkdir("./file0", 0777 [pid 4687] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4685] exit_group(0./strace-static-x86_64: Process 4690 attached [pid 4689] <... memfd_create resumed>) = 3 [pid 4688] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4687] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4685] <... exit_group resumed>) = ? [pid 4690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4689] ftruncate(3, 0 [pid 4688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4687] <... write resumed>) = 21 [pid 4685] +++ exited with 0 +++ [pid 4690] <... prctl resumed>) = 0 [pid 4689] <... ftruncate resumed>) = 0 [pid 4688] pipe2( [pid 4687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4690] setpgid(0, 0 [pid 4689] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4688] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4685, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4690] <... setpgid resumed>) = 0 [pid 4689] <... openat resumed>) = 4 [pid 4688] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4686] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4689] ioctl(4, LOOP_SET_FD, 3 [pid 4688] <... write resumed>) = 21 [pid 4686] exit_group(0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4690] <... openat resumed>) = 3 [pid 4689] <... ioctl resumed>) = 0 [pid 4688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4686] <... exit_group resumed>) = ? [pid 4690] write(3, "1000", 4 [pid 4689] mkdir("./file0", 0777 [pid 4686] +++ exited with 0 +++ [pid 4690] <... write resumed>) = 4 [pid 4689] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4686, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4690] close(3 [pid 4689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4690] <... close resumed>) = 0 [pid 4689] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4690] memfd_create("syzkaller", 0 [pid 4689] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4687] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4690] <... memfd_create resumed>) = 3 [pid 4689] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4687] exit_group(0 [pid 3618] close(3 [pid 4690] ftruncate(3, 0 [pid 4689] <... write resumed>) = 21 [pid 4687] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 4690] <... ftruncate resumed>) = 0 [pid 4689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4687] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4690] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4687, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4690] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4691 [pid 4690] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... ioctl resumed>) = 0 [pid 4690] <... ioctl resumed>) = 0 [pid 4688] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4690] mkdir("./file0", 0777 [pid 4688] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4691 attached [pid 4690] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4688] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4688] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 4691] <... prctl resumed>) = 0 [pid 4690] pipe2( [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4692 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4688, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4691] setpgid(0, 0 [pid 4690] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4692 attached [pid 4691] <... setpgid resumed>) = 0 [pid 4690] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4692] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4690] <... write resumed>) = 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4692] <... prctl resumed>) = 0 [pid 4691] <... openat resumed>) = 3 [pid 4690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4689] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 4692] setpgid(0, 0 [pid 4691] write(3, "1000", 4 [pid 4689] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4692] <... setpgid resumed>) = 0 [pid 4691] <... write resumed>) = 4 [pid 4689] <... exit_group resumed>) = ? [pid 4692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4691] close(3 [pid 4689] +++ exited with 0 +++ [pid 4692] <... openat resumed>) = 3 [pid 4691] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4689, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4692] write(3, "1000", 4 [pid 4691] memfd_create("syzkaller", 0 [pid 4692] <... write resumed>) = 4 [pid 4691] <... memfd_create resumed>) = 3 [pid 4692] close(3 [pid 4691] ftruncate(3, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4692] <... close resumed>) = 0 [pid 4691] <... ftruncate resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4692] memfd_create("syzkaller", 0 [pid 4691] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4692] <... memfd_create resumed>) = 3 [pid 4691] <... openat resumed>) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4692] ftruncate(3, 0 [pid 4691] ioctl(4, LOOP_SET_FD, 3 [pid 4690] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] close(3 [pid 3615] close(3 [pid 4692] <... ftruncate resumed>) = 0 [pid 4691] <... ioctl resumed>) = 0 [pid 4690] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4692] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4691] mkdir("./file0", 0777 [pid 4690] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4692] <... openat resumed>) = 4 [pid 4691] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4690] +++ exited with 0 +++ [pid 4692] ioctl(4, LOOP_SET_FD, 3 [pid 4691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4693 [pid 4692] <... ioctl resumed>) = 0 [pid 4691] pipe2( [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4690, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4694 [pid 4692] mkdir("./file0", 0777 [pid 4691] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4692] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4691] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4691] <... write resumed>) = 21 ./strace-static-x86_64: Process 4693 attached [pid 4692] pipe2( [pid 4691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 4693] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4692] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4693] <... prctl resumed>) = 0 [pid 4692] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4693] setpgid(0, 0 [pid 4692] <... write resumed>) = 21 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4694 attached [pid 4693] <... setpgid resumed>) = 0 [pid 4692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 4694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4695 [pid 3616] close(3 [pid 4694] <... prctl resumed>) = 0 [pid 4693] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4694] setpgid(0, 0 [pid 4693] write(3, "1000", 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4695 attached [pid 4694] <... setpgid resumed>) = 0 [pid 4693] <... write resumed>) = 4 [pid 4695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4693] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4696 [pid 4695] <... prctl resumed>) = 0 [pid 4693] <... close resumed>) = 0 [pid 4695] setpgid(0, 0 [pid 4693] memfd_create("syzkaller", 0 [pid 4695] <... setpgid resumed>) = 0 [pid 4693] <... memfd_create resumed>) = 3 [pid 4695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4693] ftruncate(3, 0 [pid 4695] <... openat resumed>) = 3 [pid 4694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4693] <... ftruncate resumed>) = 0 [pid 4695] write(3, "1000", 4 [pid 4693] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4695] <... write resumed>) = 4 [pid 4694] <... openat resumed>) = 3 [pid 4693] <... openat resumed>) = 4 [pid 4695] close(3 [pid 4694] write(3, "1000", 4 [pid 4693] ioctl(4, LOOP_SET_FD, 3 [pid 4695] <... close resumed>) = 0 [pid 4694] <... write resumed>) = 4 [pid 4693] <... ioctl resumed>) = 0 [pid 4695] memfd_create("syzkaller", 0 [pid 4694] close(3 [pid 4693] mkdir("./file0", 0777 [pid 4695] <... memfd_create resumed>) = 3 [pid 4693] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4695] ftruncate(3, 0 [pid 4693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4696 attached [pid 4695] <... ftruncate resumed>) = 0 [pid 4694] <... close resumed>) = 0 [pid 4693] pipe2( [pid 4691] <... mount resumed>) = -1 EIO (Input/output error) [pid 4696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4695] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4694] memfd_create("syzkaller", 0 [pid 4693] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4691] exit_group(0 [pid 4696] <... prctl resumed>) = 0 [pid 4695] <... openat resumed>) = 4 [pid 4694] <... memfd_create resumed>) = 3 [pid 4693] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4691] <... exit_group resumed>) = ? [pid 4696] setpgid(0, 0 [pid 4695] ioctl(4, LOOP_SET_FD, 3 [pid 4694] ftruncate(3, 0 [pid 4693] <... write resumed>) = 21 [pid 4691] +++ exited with 0 +++ [pid 4696] <... setpgid resumed>) = 0 [pid 4695] <... ioctl resumed>) = 0 [pid 4694] <... ftruncate resumed>) = 0 [pid 4693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4695] mkdir("./file0", 0777 [pid 4694] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4691, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4696] <... openat resumed>) = 3 [pid 4695] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4694] <... openat resumed>) = 4 [pid 4692] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4696] write(3, "1000", 4 [pid 4695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4694] ioctl(4, LOOP_SET_FD, 3 [pid 4692] exit_group(0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4696] <... write resumed>) = 4 [pid 4695] pipe2( [pid 4694] <... ioctl resumed>) = 0 [pid 4692] <... exit_group resumed>) = ? [pid 4696] close(3 [pid 4695] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4694] mkdir("./file0", 0777 [pid 4692] +++ exited with 0 +++ [pid 4696] <... close resumed>) = 0 [pid 4695] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4694] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4692, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4696] memfd_create("syzkaller", 0 [pid 4695] <... write resumed>) = 21 [pid 4694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4693] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... openat resumed>) = 3 [pid 4696] <... memfd_create resumed>) = 3 [pid 4695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4694] pipe2( [pid 4693] exit_group(0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4696] ftruncate(3, 0 [pid 4694] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4693] <... exit_group resumed>) = ? [pid 4696] <... ftruncate resumed>) = 0 [pid 4694] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4693] +++ exited with 0 +++ [pid 4696] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4694] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4693, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4696] <... openat resumed>) = 4 [pid 4694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4696] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... restart_syscall resumed>) = 0 [pid 4696] <... ioctl resumed>) = 0 [pid 4696] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... openat resumed>) = 3 [pid 4696] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4696] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4696] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] close(3 [pid 4696] <... write resumed>) = 21 [pid 3619] <... close resumed>) = 0 [pid 4696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4697 [pid 4695] <... mount resumed>) = -1 EIO (Input/output error) [pid 4695] exit_group(0) = ? [pid 4695] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4695, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4697 attached [pid 4697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4697] <... prctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4697] setpgid(0, 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4697] <... setpgid resumed>) = 0 [pid 4697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4697] write(3, "1000", 4) = 4 [pid 4697] close(3) = 0 [pid 4697] memfd_create("syzkaller", 0) = 3 [pid 4697] ftruncate(3, 0) = 0 [pid 4697] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4697] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4697] mkdir("./file0", 0777 [pid 3618] close(3 [pid 4697] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... close resumed>) = 0 [pid 4697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4697] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 4697] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] close(3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4698 [pid 4697] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... close resumed>) = 0 [pid 4697] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4699 ./strace-static-x86_64: Process 4698 attached [pid 3617] <... ioctl resumed>) = 0 [pid 4698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] close(3./strace-static-x86_64: Process 4699 attached [pid 4698] <... prctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4698] setpgid(0, 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4699] <... prctl resumed>) = 0 [pid 4698] <... setpgid resumed>) = 0 [pid 4696] <... mount resumed>) = -1 EIO (Input/output error) [pid 4699] setpgid(0, 0 [pid 4698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4696] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4700 [pid 4699] <... setpgid resumed>) = 0 [pid 4698] <... openat resumed>) = 3 [pid 4696] <... exit_group resumed>) = ? [pid 4699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4698] write(3, "1000", 4./strace-static-x86_64: Process 4700 attached [pid 4699] <... openat resumed>) = 3 [pid 4698] <... write resumed>) = 4 [pid 4696] +++ exited with 0 +++ [pid 4699] write(3, "1000", 4 [pid 4698] close(3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4696, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4699] <... write resumed>) = 4 [pid 4698] <... close resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4699] close(3 [pid 4698] memfd_create("syzkaller", 0 [pid 4700] <... prctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4699] <... close resumed>) = 0 [pid 4698] <... memfd_create resumed>) = 3 [pid 4700] setpgid(0, 0 [pid 4699] memfd_create("syzkaller", 0 [pid 4698] ftruncate(3, 0 [pid 4699] <... memfd_create resumed>) = 3 [pid 4698] <... ftruncate resumed>) = 0 [pid 4700] <... setpgid resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4699] ftruncate(3, 0 [pid 4698] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 4700] <... openat resumed>) = 3 [pid 4699] <... ftruncate resumed>) = 0 [pid 4698] <... openat resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4699] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4698] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... ioctl resumed>) = 0 [pid 4700] write(3, "1000", 4 [pid 4699] <... openat resumed>) = 4 [pid 4698] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4699] ioctl(4, LOOP_SET_FD, 3 [pid 4698] mkdir("./file0", 0777 [pid 3616] <... close resumed>) = 0 [pid 4699] <... ioctl resumed>) = 0 [pid 4698] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4700] <... write resumed>) = 4 [pid 4699] mkdir("./file0", 0777 [pid 4698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4694] <... mount resumed>) = -1 EIO (Input/output error) [pid 4700] close(3 [pid 4699] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4698] pipe2( [pid 4694] exit_group(0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4701 [pid 4700] <... close resumed>) = 0 [pid 4699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4698] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4694] <... exit_group resumed>) = ? [pid 4700] memfd_create("syzkaller", 0 [pid 4699] pipe2( [pid 4698] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4694] +++ exited with 0 +++ [pid 4700] <... memfd_create resumed>) = 3 [pid 4699] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4698] <... write resumed>) = 21 [pid 4700] ftruncate(3, 0 [pid 4699] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4694, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4701 attached [pid 4700] <... ftruncate resumed>) = 0 [pid 4699] <... write resumed>) = 21 [pid 4697] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4701] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4700] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4697] exit_group(0 [pid 3615] <... openat resumed>) = 3 [pid 4700] <... openat resumed>) = 4 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4700] ioctl(4, LOOP_SET_FD, 3 [pid 4697] <... exit_group resumed>) = ? [pid 3615] <... ioctl resumed>) = 0 [pid 4700] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 4700] mkdir("./file0", 0777 [pid 4697] +++ exited with 0 +++ [pid 4701] <... prctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4701] setpgid(0, 0 [pid 4700] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4697, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4702 attached [pid 4701] <... setpgid resumed>) = 0 [pid 4700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4700] pipe2( [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4702 [pid 4702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4700] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4700] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4701] <... openat resumed>) = 3 [pid 4701] write(3, "1000", 4 [pid 4700] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 4702] <... prctl resumed>) = 0 [pid 4701] <... write resumed>) = 4 [pid 4700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4701] close(3 [pid 4698] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 4701] <... close resumed>) = 0 [pid 4701] memfd_create("syzkaller", 0 [pid 3619] close(3 [pid 4702] setpgid(0, 0) = 0 [pid 4701] <... memfd_create resumed>) = 3 [pid 4698] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 4701] ftruncate(3, 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4701] <... ftruncate resumed>) = 0 [pid 4701] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4701] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4703 [pid 4701] <... ioctl resumed>) = 0 [pid 4701] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4698] <... exit_group resumed>) = ? [pid 4701] pipe2( [pid 4702] <... openat resumed>) = 3 [pid 4701] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4703 attached [pid 4702] write(3, "1000", 4 [pid 4701] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4698] +++ exited with 0 +++ [pid 4703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4702] <... write resumed>) = 4 [pid 4701] <... write resumed>) = 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4698, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4703] <... prctl resumed>) = 0 [pid 4702] close(3 [pid 4701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4703] setpgid(0, 0 [pid 4702] <... close resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4702] memfd_create("syzkaller", 0) = 3 [pid 4703] <... setpgid resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 4702] ftruncate(3, 0 [pid 4703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4702] <... ftruncate resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4702] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4703] <... openat resumed>) = 3 [pid 4703] write(3, "1000", 4 [pid 4702] <... openat resumed>) = 4 [pid 4703] <... write resumed>) = 4 [pid 4702] ioctl(4, LOOP_SET_FD, 3 [pid 4703] close(3 [pid 4702] <... ioctl resumed>) = 0 [pid 4703] <... close resumed>) = 0 [pid 4702] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4703] memfd_create("syzkaller", 0 [pid 4702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4702] pipe2( [pid 4703] <... memfd_create resumed>) = 3 [pid 4702] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4703] ftruncate(3, 0 [pid 4702] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4703] <... ftruncate resumed>) = 0 [pid 4702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4703] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4703] ioctl(4, LOOP_SET_FD, 3 [pid 4699] <... mount resumed>) = -1 EIO (Input/output error) [pid 4703] <... ioctl resumed>) = 0 [pid 4699] exit_group(0 [pid 3618] <... ioctl resumed>) = 0 [pid 4703] mkdir("./file0", 0777 [pid 4699] <... exit_group resumed>) = ? [pid 4703] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4699] +++ exited with 0 +++ [pid 3618] close(3 [pid 4703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4699, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4703] pipe2([5, 6], 0) = 0 [pid 4703] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... close resumed>) = 0 [pid 4703] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4704 ./strace-static-x86_64: Process 4704 attached [pid 4700] <... mount resumed>) = -1 EIO (Input/output error) [pid 4700] exit_group(0) = ? [pid 4704] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4700] +++ exited with 0 +++ [pid 4704] <... prctl resumed>) = 0 [pid 4704] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4700, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4704] <... setpgid resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4704] write(3, "1000", 4) = 4 [pid 4704] close(3) = 0 [pid 4704] memfd_create("syzkaller", 0) = 3 [pid 4704] ftruncate(3, 0) = 0 [pid 4704] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4704] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4704] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4701] <... mount resumed>) = -1 EIO (Input/output error) [pid 4704] pipe2([5, 6], 0) = 0 [pid 4701] exit_group(0 [pid 4704] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4701] <... exit_group resumed>) = ? [pid 4704] <... write resumed>) = 21 [pid 4704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4701] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4701, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3620] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4705 attached [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4705 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4706 [pid 4705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4705] setpgid(0, 0 [pid 4702] <... mount resumed>) = -1 EIO (Input/output error) [pid 4705] <... setpgid resumed>) = 0 [pid 4705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4705] write(3, "1000", 4) = 4 [pid 4705] close(3) = 0 [pid 4705] memfd_create("syzkaller", 0) = 3 [pid 4705] ftruncate(3, 0) = 0 [pid 4705] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4705] ioctl(4, LOOP_SET_FD, 3) = 0 ./strace-static-x86_64: Process 4706 attached [pid 4705] mkdir("./file0", 0777 [pid 4702] exit_group(0 [pid 4706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4705] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4706] <... prctl resumed>) = 0 [pid 4705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4706] setpgid(0, 0 [pid 4705] pipe2( [pid 4706] <... setpgid resumed>) = 0 [pid 4705] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4705] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4706] <... openat resumed>) = 3 [pid 4705] <... write resumed>) = 21 [pid 4706] write(3, "1000", 4 [pid 4705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4706] <... write resumed>) = 4 [pid 4702] <... exit_group resumed>) = ? [pid 4706] close(3) = 0 [pid 4706] memfd_create("syzkaller", 0) = 3 [pid 4702] +++ exited with 0 +++ [pid 4706] ftruncate(3, 0) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4702, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4706] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4706] <... openat resumed>) = 4 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4706] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4706] mkdir("./file0", 0777 [pid 3616] <... ioctl resumed>) = 0 [pid 4706] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4706] pipe2( [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4706] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4706] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4707 [pid 4706] <... write resumed>) = 21 [pid 4706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4707 attached [pid 4707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4707] setpgid(0, 0) = 0 [pid 4707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4707] write(3, "1000", 4) = 4 [pid 4707] close(3) = 0 [pid 4707] memfd_create("syzkaller", 0) = 3 [pid 4707] ftruncate(3, 0) = 0 [pid 4704] <... mount resumed>) = -1 EIO (Input/output error) [pid 4707] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4704] exit_group(0 [pid 4707] <... openat resumed>) = 4 [pid 4704] <... exit_group resumed>) = ? [pid 4707] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4704] +++ exited with 0 +++ [pid 4707] mkdir("./file0", 0777 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4704, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4707] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4707] pipe2([5, 6], 0) = 0 [pid 4707] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4703] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4707] <... write resumed>) = 21 [pid 4707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] close(3 [pid 4703] exit_group(0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4703] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4708 ./strace-static-x86_64: Process 4708 attached [pid 4703] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4703, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4708] setpgid(0, 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4708] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 4708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4708] <... openat resumed>) = 3 [pid 4706] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4708] write(3, "1000", 4 [pid 4706] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4708] <... write resumed>) = 4 [pid 4706] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3618] <... close resumed>) = 0 [pid 4708] close(3 [pid 4706] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4708] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4708] memfd_create("syzkaller", 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4706, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4709 [pid 4708] <... memfd_create resumed>) = 3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4710 [pid 4708] ftruncate(3, 0 [pid 3620] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 4709 attached [pid 4708] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4710 attached [pid 4709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4708] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4709] <... prctl resumed>) = 0 [pid 4708] <... openat resumed>) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4710] <... prctl resumed>) = 0 [pid 4709] setpgid(0, 0 [pid 4708] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... openat resumed>) = 3 [pid 4710] setpgid(0, 0 [pid 4709] <... setpgid resumed>) = 0 [pid 4708] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4710] <... setpgid resumed>) = 0 [pid 4709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4708] mkdir("./file0", 0777 [pid 4710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4709] <... openat resumed>) = 3 [pid 4708] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4710] <... openat resumed>) = 3 [pid 4709] write(3, "1000", 4 [pid 4708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4709] <... write resumed>) = 4 [pid 4709] close(3) = 0 [pid 4709] memfd_create("syzkaller", 0) = 3 [pid 4709] ftruncate(3, 0) = 0 [pid 4710] write(3, "1000", 4 [pid 4709] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4708] pipe2( [pid 4710] <... write resumed>) = 4 [pid 4709] <... openat resumed>) = 4 [pid 4708] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4705] <... mount resumed>) = -1 EIO (Input/output error) [pid 4710] close(3 [pid 4709] ioctl(4, LOOP_SET_FD, 3 [pid 4708] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4705] exit_group(0 [pid 4710] <... close resumed>) = 0 [pid 4709] <... ioctl resumed>) = 0 [pid 4708] <... write resumed>) = 21 [pid 4705] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 4710] memfd_create("syzkaller", 0 [pid 4709] mkdir("./file0", 0777 [pid 4708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4705] +++ exited with 0 +++ [pid 3620] close(3 [pid 4710] <... memfd_create resumed>) = 3 [pid 4709] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4705, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4710] ftruncate(3, 0 [pid 4709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4710] <... ftruncate resumed>) = 0 [pid 4709] pipe2( [pid 4710] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4709] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4710] <... openat resumed>) = 4 [pid 4709] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4711 [pid 4710] ioctl(4, LOOP_SET_FD, 3 [pid 4709] <... write resumed>) = 21 [pid 4710] <... ioctl resumed>) = 0 [pid 4709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4711 attached [pid 4710] mkdir("./file0", 0777 [pid 4707] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4710] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4707] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 4711] <... prctl resumed>) = 0 [pid 4710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4707] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4711] setpgid(0, 0 [pid 4710] pipe2( [pid 4707] +++ exited with 0 +++ [pid 4710] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4711] <... setpgid resumed>) = 0 [pid 4710] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4707, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4710] <... write resumed>) = 21 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4711] <... openat resumed>) = 3 [pid 4710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... restart_syscall resumed>) = 0 [pid 4711] write(3, "1000", 4) = 4 [pid 4711] close(3 [pid 4708] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4711] <... close resumed>) = 0 [pid 4708] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 4711] memfd_create("syzkaller", 0 [pid 4708] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4711] <... memfd_create resumed>) = 3 [pid 4708] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 4711] ftruncate(3, 0 [pid 3616] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4708, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4711] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4711] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4711] <... openat resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4711] ioctl(4, LOOP_SET_FD, 3 [pid 3617] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4712 [pid 3615] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4712 attached [pid 4711] <... ioctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4711] mkdir("./file0", 0777 [pid 4709] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4712] <... prctl resumed>) = 0 [pid 4711] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4712] setpgid(0, 0 [pid 4711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4713 [pid 4712] <... setpgid resumed>) = 0 [pid 4711] pipe2( [pid 4712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4711] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4709] exit_group(0 [pid 4712] <... openat resumed>) = 3 [pid 4711] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4709] <... exit_group resumed>) = ? [pid 4712] write(3, "1000", 4 [pid 4711] <... write resumed>) = 21 [pid 4709] +++ exited with 0 +++ [pid 4712] <... write resumed>) = 4 [pid 4711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4709, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4713 attached [pid 4712] close(3) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4712] memfd_create("syzkaller", 0 [pid 3615] close(3 [pid 4713] <... prctl resumed>) = 0 [pid 4712] <... memfd_create resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 4713] setpgid(0, 0 [pid 4712] ftruncate(3, 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4713] <... setpgid resumed>) = 0 [pid 4712] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4712] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4714 [pid 4713] <... openat resumed>) = 3 [pid 4712] <... openat resumed>) = 4 [pid 4710] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4710] exit_group(0./strace-static-x86_64: Process 4714 attached ) = ? [pid 4714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4710] +++ exited with 0 +++ [pid 4714] <... prctl resumed>) = 0 [pid 4714] setpgid(0, 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4710, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4714] <... setpgid resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... openat resumed>) = 3 [pid 4714] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4714] write(3, "1000", 4) = 4 [pid 4713] write(3, "1000", 4 [pid 4712] ioctl(4, LOOP_SET_FD, 3 [pid 4714] close(3 [pid 4713] <... write resumed>) = 4 [pid 4712] <... ioctl resumed>) = 0 [pid 4714] <... close resumed>) = 0 [pid 4713] close(3 [pid 4712] mkdir("./file0", 0777 [pid 4714] memfd_create("syzkaller", 0 [pid 4713] <... close resumed>) = 0 [pid 4712] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4714] <... memfd_create resumed>) = 3 [pid 4713] memfd_create("syzkaller", 0 [pid 4712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4714] ftruncate(3, 0 [pid 4713] <... memfd_create resumed>) = 3 [pid 4712] pipe2( [pid 3619] close(3 [pid 3618] close(3 [pid 4714] <... ftruncate resumed>) = 0 [pid 4713] ftruncate(3, 0 [pid 4712] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4714] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4713] <... ftruncate resumed>) = 0 [pid 4712] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4711] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4714] <... openat resumed>) = 4 [pid 4713] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4712] <... write resumed>) = 21 [pid 4711] exit_group(0 [pid 4714] ioctl(4, LOOP_SET_FD, 3 [pid 4713] <... openat resumed>) = 4 [pid 4712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4711] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4715 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4716 [pid 4714] <... ioctl resumed>) = 0 [pid 4713] ioctl(4, LOOP_SET_FD, 3 [pid 4711] +++ exited with 0 +++ ./strace-static-x86_64: Process 4715 attached [pid 4714] mkdir("./file0", 0777 [pid 4715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4714] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4713] <... ioctl resumed>) = 0 [pid 4715] <... prctl resumed>) = 0 [pid 4714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4713] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4711, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4715] setpgid(0, 0 [pid 4714] pipe2( [pid 4713] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4715] <... setpgid resumed>) = 0 [pid 4714] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... restart_syscall resumed>) = 0 [pid 4715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4714] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4713] pipe2( [pid 4715] <... openat resumed>) = 3 [pid 4714] <... write resumed>) = 21 [pid 4713] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4715] write(3, "1000", 4 [pid 4714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4713] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4716 attached [pid 4715] <... write resumed>) = 4 [pid 4713] <... write resumed>) = 21 [pid 3620] <... openat resumed>) = 3 [pid 4716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4715] close(3 [pid 4713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4716] <... prctl resumed>) = 0 [pid 4715] <... close resumed>) = 0 [pid 4716] setpgid(0, 0 [pid 4715] memfd_create("syzkaller", 0 [pid 4716] <... setpgid resumed>) = 0 [pid 4715] <... memfd_create resumed>) = 3 [pid 4716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4715] ftruncate(3, 0 [pid 4716] <... openat resumed>) = 3 [pid 4715] <... ftruncate resumed>) = 0 [pid 4716] write(3, "1000", 4 [pid 4715] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4716] <... write resumed>) = 4 [pid 4715] <... openat resumed>) = 4 [pid 4715] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4715] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4715] pipe2([5, 6], 0) = 0 [pid 4716] close(3 [pid 4715] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4715] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4716] <... close resumed>) = 0 [pid 4716] memfd_create("syzkaller", 0 [pid 4712] <... mount resumed>) = -1 EIO (Input/output error) [pid 4716] <... memfd_create resumed>) = 3 [pid 4712] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 4716] ftruncate(3, 0 [pid 4712] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 4716] <... ftruncate resumed>) = 0 [pid 4712] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 4716] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4716] <... openat resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4712, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4716] ioctl(4, LOOP_SET_FD, 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4717 attached [pid 4716] <... ioctl resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4717 [pid 3616] <... ioctl resumed>) = 0 [pid 4717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4716] mkdir("./file0", 0777 [pid 3616] close(3 [pid 4717] <... prctl resumed>) = 0 [pid 4716] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4713] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... close resumed>) = 0 [pid 4717] setpgid(0, 0 [pid 4716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4713] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4717] <... setpgid resumed>) = 0 [pid 4716] pipe2( [pid 4713] <... exit_group resumed>) = ? [pid 4717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4718 [pid 4717] <... openat resumed>) = 3 [pid 4717] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 4718 attached [pid 4717] close(3) = 0 [pid 4716] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4718] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4717] memfd_create("syzkaller", 0 [pid 4713] +++ exited with 0 +++ [pid 4718] <... prctl resumed>) = 0 [pid 4717] <... memfd_create resumed>) = 3 [pid 4716] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4718] setpgid(0, 0 [pid 4717] ftruncate(3, 0 [pid 4716] <... write resumed>) = 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4713, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4718] <... setpgid resumed>) = 0 [pid 4717] <... ftruncate resumed>) = 0 [pid 4716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4714] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4717] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4714] exit_group(0 [pid 4718] <... openat resumed>) = 3 [pid 4717] <... openat resumed>) = 4 [pid 4714] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 4718] write(3, "1000", 4 [pid 4717] ioctl(4, LOOP_SET_FD, 3 [pid 4714] +++ exited with 0 +++ [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4718] <... write resumed>) = 4 [pid 4717] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4714, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4718] close(3 [pid 4717] mkdir("./file0", 0777 [pid 3617] close(3 [pid 4718] <... close resumed>) = 0 [pid 4717] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... close resumed>) = 0 [pid 4718] memfd_create("syzkaller", 0 [pid 4717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4718] <... memfd_create resumed>) = 3 [pid 4717] pipe2( [pid 4718] ftruncate(3, 0 [pid 4717] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4718] <... ftruncate resumed>) = 0 [pid 4717] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4719 [pid 3615] <... openat resumed>) = 3 [pid 4718] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4717] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4718] <... openat resumed>) = 4 [pid 4717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4715] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4719 attached [pid 4718] ioctl(4, LOOP_SET_FD, 3 [pid 4719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4718] <... ioctl resumed>) = 0 [pid 4715] exit_group(0 [pid 4719] <... prctl resumed>) = 0 [pid 4718] mkdir("./file0", 0777 [pid 4715] <... exit_group resumed>) = ? [pid 4719] setpgid(0, 0 [pid 4718] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4719] <... setpgid resumed>) = 0 [pid 4718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4715] +++ exited with 0 +++ [pid 4719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4718] pipe2( [pid 4716] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4715, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4719] <... openat resumed>) = 3 [pid 4718] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4719] write(3, "1000", 4 [pid 4718] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4716] exit_group(0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4719] <... write resumed>) = 4 [pid 4718] <... write resumed>) = 21 [pid 4716] <... exit_group resumed>) = ? [pid 4719] close(3 [pid 4718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4719] <... close resumed>) = 0 [pid 4716] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4719] memfd_create("syzkaller", 0 [pid 3619] <... openat resumed>) = 3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4716, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4719] <... memfd_create resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4719] ftruncate(3, 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... ioctl resumed>) = 0 [pid 4719] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 3615] close(3 [pid 4719] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3615] <... close resumed>) = 0 [pid 4719] ioctl(4, LOOP_SET_FD, 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4719] <... ioctl resumed>) = 0 [pid 4719] mkdir("./file0", 0777 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4720 [pid 4719] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4719] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4719] pipe2([5, 6], 0) = 0 [pid 4719] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4721 ./strace-static-x86_64: Process 4720 attached [pid 4720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 4721 attached [pid 4720] setpgid(0, 0 [pid 4721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4720] <... setpgid resumed>) = 0 [pid 4721] <... prctl resumed>) = 0 [pid 4720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4721] setpgid(0, 0 [pid 4720] <... openat resumed>) = 3 [pid 4721] <... setpgid resumed>) = 0 [pid 4720] write(3, "1000", 4 [pid 4721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4720] <... write resumed>) = 4 [pid 4721] <... openat resumed>) = 3 [pid 4720] close(3 [pid 4721] write(3, "1000", 4 [pid 4720] <... close resumed>) = 0 [pid 4721] <... write resumed>) = 4 [pid 4720] memfd_create("syzkaller", 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4721] close(3 [pid 4720] <... memfd_create resumed>) = 3 [pid 3618] close(3 [pid 4721] <... close resumed>) = 0 [pid 4720] ftruncate(3, 0 [pid 3618] <... close resumed>) = 0 [pid 4721] memfd_create("syzkaller", 0 [pid 4720] <... ftruncate resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4721] <... memfd_create resumed>) = 3 [pid 4720] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4721] ftruncate(3, 0 [pid 4720] <... openat resumed>) = 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4722 [pid 4721] <... ftruncate resumed>) = 0 [pid 4720] ioctl(4, LOOP_SET_FD, 3 [pid 4721] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4717] <... mount resumed>) = -1 EIO (Input/output error) [pid 4721] <... openat resumed>) = 4 [pid 4721] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4722 attached [pid 4722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4722] setpgid(0, 0) = 0 [pid 4722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4722] write(3, "1000", 4) = 4 [pid 4722] close(3) = 0 [pid 4721] <... ioctl resumed>) = 0 [pid 4720] <... ioctl resumed>) = 0 [pid 4717] exit_group(0 [pid 4722] memfd_create("syzkaller", 0 [pid 4721] mkdir("./file0", 0777 [pid 4720] mkdir("./file0", 0777 [pid 4717] <... exit_group resumed>) = ? [pid 4722] <... memfd_create resumed>) = 3 [pid 4721] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4720] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4722] ftruncate(3, 0 [pid 4721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4717] +++ exited with 0 +++ [pid 4722] <... ftruncate resumed>) = 0 [pid 4721] pipe2( [pid 4720] pipe2( [pid 4722] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4721] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4720] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4722] <... openat resumed>) = 4 [pid 4721] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4720] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4722] ioctl(4, LOOP_SET_FD, 3 [pid 4721] <... write resumed>) = 21 [pid 4720] <... write resumed>) = 21 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4717, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4722] <... ioctl resumed>) = 0 [pid 4721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4722] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 4722] pipe2( [pid 4718] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4722] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4718] exit_group(0 [pid 4722] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4718] <... exit_group resumed>) = ? [pid 4722] <... write resumed>) = 21 [pid 4722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4718] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4718, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4719] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4719] exit_group(0 [pid 3616] <... openat resumed>) = 3 [pid 4719] <... exit_group resumed>) = ? [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4719] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4719, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4720] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4720] exit_group(0 [pid 3620] close(3 [pid 4720] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4720] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4723 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4720, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4724 ./strace-static-x86_64: Process 4724 attached [pid 4724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4724] setpgid(0, 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3./strace-static-x86_64: Process 4723 attached [pid 4724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... close resumed>) = 0 [pid 4724] <... openat resumed>) = 3 [pid 4723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4723] <... prctl resumed>) = 0 [pid 4722] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4724] write(3, "1000", 4 [pid 4723] setpgid(0, 0 [pid 4722] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4725 [pid 3615] close(3 [pid 4724] <... write resumed>) = 4 [pid 4722] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4724] close(3 [pid 4722] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4724] <... close resumed>) = 0 [pid 4723] <... setpgid resumed>) = 0 [pid 4724] memfd_create("syzkaller", 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4722, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4726 [pid 4724] <... memfd_create resumed>) = 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4724] ftruncate(3, 0 [pid 4721] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... restart_syscall resumed>) = 0 [pid 4724] <... ftruncate resumed>) = 0 [pid 4721] exit_group(0./strace-static-x86_64: Process 4726 attached ./strace-static-x86_64: Process 4725 attached [pid 4724] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4721] <... exit_group resumed>) = ? [pid 4726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4724] <... openat resumed>) = 4 [pid 4723] <... openat resumed>) = 3 [pid 4721] +++ exited with 0 +++ [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4726] <... prctl resumed>) = 0 [pid 4725] <... prctl resumed>) = 0 [pid 4724] ioctl(4, LOOP_SET_FD, 3 [pid 4723] write(3, "1000", 4 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4721, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] <... openat resumed>) = 3 [pid 4726] setpgid(0, 0 [pid 4725] setpgid(0, 0 [pid 4724] <... ioctl resumed>) = 0 [pid 4723] <... write resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4726] <... setpgid resumed>) = 0 [pid 4725] <... setpgid resumed>) = 0 [pid 4724] mkdir("./file0", 0777 [pid 4723] close(3 [pid 4726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4724] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4723] <... close resumed>) = 0 [pid 4726] <... openat resumed>) = 3 [pid 4725] <... openat resumed>) = 3 [pid 4724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4723] memfd_create("syzkaller", 0 [pid 4726] write(3, "1000", 4 [pid 4725] write(3, "1000", 4 [pid 4724] pipe2( [pid 4723] <... memfd_create resumed>) = 3 [pid 4726] <... write resumed>) = 4 [pid 4724] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4726] close(3 [pid 4724] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... openat resumed>) = 3 [pid 4726] <... close resumed>) = 0 [pid 4724] <... write resumed>) = 21 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4726] memfd_create("syzkaller", 0 [pid 4724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4726] <... memfd_create resumed>) = 3 [pid 4725] <... write resumed>) = 4 [pid 4723] ftruncate(3, 0 [pid 4726] ftruncate(3, 0 [pid 4725] close(3 [pid 4723] <... ftruncate resumed>) = 0 [pid 4726] <... ftruncate resumed>) = 0 [pid 4725] <... close resumed>) = 0 [pid 4723] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4726] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3618] <... ioctl resumed>) = 0 [pid 4726] <... openat resumed>) = 4 [pid 3618] close(3 [pid 4726] ioctl(4, LOOP_SET_FD, 3 [pid 4725] memfd_create("syzkaller", 0 [pid 4723] <... openat resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 4726] <... ioctl resumed>) = 0 [pid 4725] <... memfd_create resumed>) = 3 [pid 4723] ioctl(4, LOOP_SET_FD, 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4726] mkdir("./file0", 0777 [pid 4725] ftruncate(3, 0 [pid 4723] <... ioctl resumed>) = 0 [pid 4726] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4725] <... ftruncate resumed>) = 0 [pid 4723] mkdir("./file0", 0777 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4727 [pid 4726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... ioctl resumed>) = 0 [pid 4726] pipe2( [pid 3619] close(3 [pid 4726] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... close resumed>) = 0 [pid 4726] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4725] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4723] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4726] <... write resumed>) = 21 [pid 4723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4725] <... openat resumed>) = 4 [pid 4723] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4728 [pid 4725] ioctl(4, LOOP_SET_FD, 3 [pid 4723] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4723] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4725] <... ioctl resumed>) = 0 [pid 4725] mkdir("./file0", 0777 [pid 4723] <... write resumed>) = 21 ./strace-static-x86_64: Process 4728 attached [pid 4725] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4728] <... prctl resumed>) = 0 [pid 4725] pipe2( [pid 4728] setpgid(0, 0 [pid 4725] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4728] <... setpgid resumed>) = 0 [pid 4725] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4725] <... write resumed>) = 21 [pid 4728] <... openat resumed>) = 3 [pid 4725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4728] write(3, "1000", 4) = 4 [pid 4728] close(3) = 0 [pid 4724] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4727 attached [pid 4728] memfd_create("syzkaller", 0 [pid 4724] exit_group(0 [pid 4728] <... memfd_create resumed>) = 3 [pid 4727] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4724] <... exit_group resumed>) = ? [pid 4728] ftruncate(3, 0 [pid 4727] <... prctl resumed>) = 0 [pid 4724] +++ exited with 0 +++ [pid 4728] <... ftruncate resumed>) = 0 [pid 4727] setpgid(0, 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4724, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4728] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4727] <... setpgid resumed>) = 0 [pid 4728] <... openat resumed>) = 4 [pid 4727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4728] ioctl(4, LOOP_SET_FD, 3 [pid 4727] <... openat resumed>) = 3 [pid 4728] <... ioctl resumed>) = 0 [pid 4727] write(3, "1000", 4 [pid 4728] mkdir("./file0", 0777 [pid 4727] <... write resumed>) = 4 [pid 4728] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4727] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4727] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4728] pipe2( [pid 4727] memfd_create("syzkaller", 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4728] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4727] <... memfd_create resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 4728] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4727] ftruncate(3, 0 [pid 4726] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 4728] <... write resumed>) = 21 [pid 4727] <... ftruncate resumed>) = 0 [pid 4726] exit_group(0 [pid 3616] <... close resumed>) = 0 [pid 4728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4727] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4726] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4727] <... openat resumed>) = 4 [pid 4726] +++ exited with 0 +++ [pid 4727] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4729 [pid 4727] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4726, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4727] mkdir("./file0", 0777 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4727] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... restart_syscall resumed>) = 0 [pid 4727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4727] pipe2(./strace-static-x86_64: Process 4729 attached [5, 6], 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4727] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... openat resumed>) = 3 [pid 4729] <... prctl resumed>) = 0 [pid 4727] <... write resumed>) = 21 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4729] setpgid(0, 0 [pid 4727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4729] <... setpgid resumed>) = 0 [pid 4729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4729] write(3, "1000", 4 [pid 4723] <... mount resumed>) = -1 EIO (Input/output error) [pid 4729] <... write resumed>) = 4 [pid 4723] exit_group(0 [pid 4729] close(3 [pid 4723] <... exit_group resumed>) = ? [pid 4729] <... close resumed>) = 0 [pid 4729] memfd_create("syzkaller", 0 [pid 4723] +++ exited with 0 +++ [pid 4729] <... memfd_create resumed>) = 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4723, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4729] ftruncate(3, 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4729] <... ftruncate resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4729] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4729] ioctl(4, LOOP_SET_FD, 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4729] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4729] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 4729] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3615] close(3 [pid 4729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 4729] pipe2( [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4729] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4730 [pid 4729] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4731 [pid 4729] <... write resumed>) = 21 ./strace-static-x86_64: Process 4731 attached [pid 4729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4725] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4730 attached [pid 4725] exit_group(0 [pid 4731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4725] <... exit_group resumed>) = ? [pid 4731] <... prctl resumed>) = 0 [pid 4730] <... prctl resumed>) = 0 [pid 4731] setpgid(0, 0 [pid 4730] setpgid(0, 0 [pid 4725] +++ exited with 0 +++ [pid 4731] <... setpgid resumed>) = 0 [pid 4730] <... setpgid resumed>) = 0 [pid 4731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4725, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4730] <... openat resumed>) = 3 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4730] write(3, "1000", 4 [pid 3617] <... openat resumed>) = 3 [pid 4731] <... openat resumed>) = 3 [pid 4730] <... write resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4730] close(3) = 0 [pid 4730] memfd_create("syzkaller", 0) = 3 [pid 4730] ftruncate(3, 0 [pid 4731] write(3, "1000", 4 [pid 4730] <... ftruncate resumed>) = 0 [pid 4731] <... write resumed>) = 4 [pid 4730] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4731] close(3 [pid 4730] <... openat resumed>) = 4 [pid 4731] <... close resumed>) = 0 [pid 4730] ioctl(4, LOOP_SET_FD, 3 [pid 4731] memfd_create("syzkaller", 0 [pid 4730] <... ioctl resumed>) = 0 [pid 4727] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4731] <... memfd_create resumed>) = 3 [pid 4730] mkdir("./file0", 0777 [pid 4727] exit_group(0 [pid 3617] close(3 [pid 4731] ftruncate(3, 0 [pid 4730] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4727] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4731] <... ftruncate resumed>) = 0 [pid 4730] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4727] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4731] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4730] pipe2(./strace-static-x86_64: Process 4732 attached [pid 4731] <... openat resumed>) = 4 [pid 4730] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4727, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4732 [pid 4730] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4731] ioctl(4, LOOP_SET_FD, 3 [pid 4730] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 4732] <... prctl resumed>) = 0 [pid 4730] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4732] setpgid(0, 0 [pid 4731] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 4732] <... setpgid resumed>) = 0 [pid 4731] mkdir("./file0", 0777 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4731] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4733 [pid 4732] <... openat resumed>) = 3 [pid 4731] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4732] write(3, "1000", 4 [pid 4731] pipe2( [pid 4728] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4733 attached [pid 4732] <... write resumed>) = 4 [pid 4731] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4728] exit_group(0 [pid 4733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4732] close(3 [pid 4731] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4728] <... exit_group resumed>) = ? [pid 4733] <... prctl resumed>) = 0 [pid 4732] <... close resumed>) = 0 [pid 4731] <... write resumed>) = 21 [pid 4733] setpgid(0, 0 [pid 4732] memfd_create("syzkaller", 0 [pid 4731] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4728] +++ exited with 0 +++ [pid 4733] <... setpgid resumed>) = 0 [pid 4732] <... memfd_create resumed>) = 3 [pid 4733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4732] ftruncate(3, 0 [pid 4729] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4728, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4733] <... openat resumed>) = 3 [pid 4732] <... ftruncate resumed>) = 0 [pid 4729] exit_group(0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4733] write(3, "1000", 4 [pid 4732] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4729] <... exit_group resumed>) = ? [pid 3619] <... restart_syscall resumed>) = 0 [pid 4733] <... write resumed>) = 4 [pid 4732] <... openat resumed>) = 4 [pid 4730] <... mount resumed>) = -1 EIO (Input/output error) [pid 4733] close(3 [pid 4732] ioctl(4, LOOP_SET_FD, 3 [pid 4729] +++ exited with 0 +++ [pid 4733] <... close resumed>) = 0 [pid 4732] <... ioctl resumed>) = 0 [pid 4730] exit_group(0 [pid 4733] memfd_create("syzkaller", 0 [pid 4732] mkdir("./file0", 0777 [pid 4733] <... memfd_create resumed>) = 3 [pid 4732] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4730] <... exit_group resumed>) = ? [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4729, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4733] ftruncate(3, 0 [pid 4732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4730] +++ exited with 0 +++ [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4733] <... ftruncate resumed>) = 0 [pid 4732] pipe2( [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4730, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... openat resumed>) = 3 [pid 4733] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4732] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... restart_syscall resumed>) = 0 [pid 4733] <... openat resumed>) = 4 [pid 4732] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... ioctl resumed>) = 0 [pid 4733] ioctl(4, LOOP_SET_FD, 3 [pid 4732] <... write resumed>) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] close(3 [pid 4733] <... ioctl resumed>) = 0 [pid 4732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3619] <... close resumed>) = 0 [pid 4733] mkdir("./file0", 0777 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4733] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4731] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 4733] pipe2( [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4734 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4734 attached [pid 4733] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4731] exit_group(0 [pid 4734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4733] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... ioctl resumed>) = 0 [pid 4733] <... write resumed>) = 21 [pid 4731] <... exit_group resumed>) = ? [pid 4733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4731] +++ exited with 0 +++ [pid 4734] <... prctl resumed>) = 0 [pid 3616] close(3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4731, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4734] setpgid(0, 0 [pid 3616] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4732] <... mount resumed>) = -1 EIO (Input/output error) [pid 4734] <... setpgid resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4735 [pid 3620] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4734] <... openat resumed>) = 3 [pid 4734] write(3, "1000", 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4736 [pid 3615] <... ioctl resumed>) = 0 [pid 4734] <... write resumed>) = 4 [pid 4734] close(3 [pid 4732] exit_group(0 [pid 3615] close(3./strace-static-x86_64: Process 4735 attached [pid 4734] <... close resumed>) = 0 [pid 4732] <... exit_group resumed>) = ? [pid 4735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4734] memfd_create("syzkaller", 0 [pid 4732] +++ exited with 0 +++ [pid 3615] <... close resumed>) = 0 ./strace-static-x86_64: Process 4736 attached [pid 4735] <... prctl resumed>) = 0 [pid 4734] <... memfd_create resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4732, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4735] setpgid(0, 0 [pid 4734] ftruncate(3, 0 [pid 4736] <... prctl resumed>) = 0 [pid 4735] <... setpgid resumed>) = 0 [pid 4734] <... ftruncate resumed>) = 0 [pid 4736] setpgid(0, 0 [pid 4735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4734] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4737 [pid 4736] <... setpgid resumed>) = 0 [pid 4735] <... openat resumed>) = 3 [pid 4734] <... openat resumed>) = 4 [pid 4736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4735] write(3, "1000", 4 [pid 4734] ioctl(4, LOOP_SET_FD, 3 [pid 4736] <... openat resumed>) = 3 [pid 4735] <... write resumed>) = 4 [pid 4734] <... ioctl resumed>) = 0 [pid 4736] write(3, "1000", 4 [pid 4735] close(3 [pid 4734] mkdir("./file0", 0777 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4737 attached [pid 4736] <... write resumed>) = 4 [pid 4735] <... close resumed>) = 0 [pid 4734] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4733] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 4737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4736] close(3 [pid 4735] memfd_create("syzkaller", 0 [pid 4734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4733] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4737] <... prctl resumed>) = 0 [pid 4736] <... close resumed>) = 0 [pid 4735] <... memfd_create resumed>) = 3 [pid 4734] pipe2( [pid 4733] <... exit_group resumed>) = ? [pid 4737] setpgid(0, 0 [pid 4736] memfd_create("syzkaller", 0 [pid 4735] ftruncate(3, 0 [pid 4734] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4733] +++ exited with 0 +++ [pid 4737] <... setpgid resumed>) = 0 [pid 4736] <... memfd_create resumed>) = 3 [pid 4735] <... ftruncate resumed>) = 0 [pid 4734] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4733, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4736] ftruncate(3, 0 [pid 4735] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4734] <... write resumed>) = 21 [pid 4737] <... openat resumed>) = 3 [pid 4736] <... ftruncate resumed>) = 0 [pid 4735] <... openat resumed>) = 4 [pid 4734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4737] write(3, "1000", 4 [pid 4736] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4735] ioctl(4, LOOP_SET_FD, 3 [pid 4737] <... write resumed>) = 4 [pid 4735] <... ioctl resumed>) = 0 [pid 4737] close(3 [pid 4735] mkdir("./file0", 0777 [pid 4737] <... close resumed>) = 0 [pid 4735] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4737] memfd_create("syzkaller", 0 [pid 4735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4737] <... memfd_create resumed>) = 3 [pid 4736] <... openat resumed>) = 4 [pid 4735] pipe2( [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4737] ftruncate(3, 0 [pid 4736] ioctl(4, LOOP_SET_FD, 3 [pid 4735] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4737] <... ftruncate resumed>) = 0 [pid 4736] <... ioctl resumed>) = 0 [pid 4735] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] <... openat resumed>) = 3 [pid 4737] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4736] mkdir("./file0", 0777 [pid 4735] <... write resumed>) = 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4737] <... openat resumed>) = 4 [pid 4736] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4737] ioctl(4, LOOP_SET_FD, 3 [pid 4736] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4737] <... ioctl resumed>) = 0 [pid 4736] pipe2( [pid 4737] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4737] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4737] pipe2([5, 6], 0) = 0 [pid 4737] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4736] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4736] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] close(3 [pid 4736] <... write resumed>) = 21 [pid 3617] <... close resumed>) = 0 [pid 4736] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4738 attached [pid 3618] <... ioctl resumed>) = 0 [pid 4738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4738 [pid 4738] <... prctl resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4738] setpgid(0, 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4738] <... setpgid resumed>) = 0 [pid 4738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4739 [pid 4738] <... openat resumed>) = 3 [pid 4738] write(3, "1000", 4) = 4 [pid 4738] close(3) = 0 [pid 4738] memfd_create("syzkaller", 0) = 3 [pid 4738] ftruncate(3, 0) = 0 [pid 4738] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4738] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4738] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4738] pipe2([5, 6], 0) = 0 [pid 4738] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 ./strace-static-x86_64: Process 4739 attached [pid 4738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4734] <... mount resumed>) = -1 EIO (Input/output error) [pid 4739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4734] exit_group(0 [pid 4739] <... prctl resumed>) = 0 [pid 4734] <... exit_group resumed>) = ? [pid 4739] setpgid(0, 0 [pid 4734] +++ exited with 0 +++ [pid 4739] <... setpgid resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4734, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... restart_syscall resumed>) = 0 [pid 4739] <... openat resumed>) = 3 [pid 4739] write(3, "1000", 4 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4739] <... write resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 4739] close(3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4739] <... close resumed>) = 0 [pid 4736] <... mount resumed>) = -1 EIO (Input/output error) [pid 4739] memfd_create("syzkaller", 0 [pid 4736] exit_group(0 [pid 4739] <... memfd_create resumed>) = 3 [pid 4739] ftruncate(3, 0 [pid 4736] <... exit_group resumed>) = ? [pid 4739] <... ftruncate resumed>) = 0 [pid 4739] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4736] +++ exited with 0 +++ [pid 4739] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4736, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4739] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4739] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 [pid 4739] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4739] pipe2([5, 6], 0) = 0 [pid 4739] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4739] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4737] <... mount resumed>) = -1 EIO (Input/output error) [pid 4737] exit_group(0) = ? [pid 4737] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4737, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4740 ./strace-static-x86_64: Process 4740 attached [pid 4740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4740] setpgid(0, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4735] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 4735] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3615] close(3 [pid 4735] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 4735] +++ exited with 0 +++ [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4741 attached [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4741 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4735, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4742 attached [pid 4741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4740] <... setpgid resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4742 [pid 4742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4741] <... prctl resumed>) = 0 [pid 4742] <... prctl resumed>) = 0 [pid 4741] setpgid(0, 0 [pid 4740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4741] <... setpgid resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4742] setpgid(0, 0 [pid 4741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4740] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4742] <... setpgid resumed>) = 0 [pid 4742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4741] <... openat resumed>) = 3 [pid 4740] write(3, "1000", 4 [pid 4742] <... openat resumed>) = 3 [pid 4741] write(3, "1000", 4 [pid 4740] <... write resumed>) = 4 [pid 4742] write(3, "1000", 4 [pid 4741] <... write resumed>) = 4 [pid 4740] close(3 [pid 4742] <... write resumed>) = 4 [pid 4741] close(3 [pid 4740] <... close resumed>) = 0 [pid 4742] close(3 [pid 4741] <... close resumed>) = 0 [pid 4740] memfd_create("syzkaller", 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 4742] <... close resumed>) = 0 [pid 4741] memfd_create("syzkaller", 0 [pid 4740] <... memfd_create resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 4742] memfd_create("syzkaller", 0 [pid 4741] <... memfd_create resumed>) = 3 [pid 4740] ftruncate(3, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4742] <... memfd_create resumed>) = 3 [pid 4741] ftruncate(3, 0 [pid 4740] <... ftruncate resumed>) = 0 [pid 4742] ftruncate(3, 0 [pid 4741] <... ftruncate resumed>) = 0 [pid 4740] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4743 [pid 4742] <... ftruncate resumed>) = 0 [pid 4742] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4741] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4740] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4743 attached [pid 4742] <... openat resumed>) = 4 [pid 4741] <... openat resumed>) = 4 [pid 4740] ioctl(4, LOOP_SET_FD, 3 [pid 4738] <... mount resumed>) = -1 EIO (Input/output error) [pid 4743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4738] exit_group(0 [pid 4743] <... prctl resumed>) = 0 [pid 4738] <... exit_group resumed>) = ? [pid 4743] setpgid(0, 0 [pid 4738] +++ exited with 0 +++ [pid 4743] <... setpgid resumed>) = 0 [pid 4743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4738, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4743] <... openat resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4743] write(3, "1000", 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4743] <... write resumed>) = 4 [pid 4742] ioctl(4, LOOP_SET_FD, 3 [pid 4741] ioctl(4, LOOP_SET_FD, 3 [pid 4740] <... ioctl resumed>) = 0 [pid 4743] close(3 [pid 4742] <... ioctl resumed>) = 0 [pid 4741] <... ioctl resumed>) = 0 [pid 4740] mkdir("./file0", 0777 [pid 4743] <... close resumed>) = 0 [pid 4742] mkdir("./file0", 0777 [pid 4741] mkdir("./file0", 0777 [pid 4740] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4743] memfd_create("syzkaller", 0 [pid 4742] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4741] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4740] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... openat resumed>) = 3 [pid 4743] <... memfd_create resumed>) = 3 [pid 4742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4740] pipe2( [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4743] ftruncate(3, 0 [pid 4742] pipe2( [pid 4741] pipe2( [pid 4740] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4743] <... ftruncate resumed>) = 0 [pid 4742] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4741] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4740] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] close(3 [pid 4743] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4742] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4741] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4740] <... write resumed>) = 21 [pid 3617] <... close resumed>) = 0 [pid 4743] <... openat resumed>) = 4 [pid 4742] <... write resumed>) = 21 [pid 4741] <... write resumed>) = 21 [pid 4740] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4743] ioctl(4, LOOP_SET_FD, 3 [pid 4742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4739] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4744 ./strace-static-x86_64: Process 4744 attached [pid 4744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4739] exit_group(0 [pid 4743] <... ioctl resumed>) = 0 [pid 4744] setpgid(0, 0 [pid 4743] mkdir("./file0", 0777 [pid 4739] <... exit_group resumed>) = ? [pid 4744] <... setpgid resumed>) = 0 [pid 4743] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4743] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4739] +++ exited with 0 +++ [pid 4744] <... openat resumed>) = 3 [pid 4743] pipe2( [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4739, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4744] write(3, "1000", 4 [pid 4743] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4744] <... write resumed>) = 4 [pid 4743] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4744] close(3 [pid 4743] <... write resumed>) = 21 [pid 4744] <... close resumed>) = 0 [pid 4743] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4744] memfd_create("syzkaller", 0) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4744] ftruncate(3, 0 [pid 3618] <... openat resumed>) = 3 [pid 4744] <... ftruncate resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4744] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4740] <... mount resumed>) = -1 EIO (Input/output error) [pid 4744] <... openat resumed>) = 4 [pid 4744] ioctl(4, LOOP_SET_FD, 3 [pid 4740] exit_group(0 [pid 4744] <... ioctl resumed>) = 0 [pid 4740] <... exit_group resumed>) = ? [pid 4744] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4744] pipe2([5, 6], 0) = 0 [pid 4744] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4740] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4740, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] close(3 [pid 4742] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... restart_syscall resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4742] exit_group(0) = ? [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4745 [pid 4742] +++ exited with 0 +++ [pid 3619] <... openat resumed>) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4742, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4745 attached [pid 4741] <... mount resumed>) = -1 EIO (Input/output error) [pid 4745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4741] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 4745] <... prctl resumed>) = 0 [pid 4741] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 4745] setpgid(0, 0 [pid 4741] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3615] close(3 [pid 4745] <... setpgid resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 4745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4741, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4746 attached [pid 4745] <... openat resumed>) = 3 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4746 [pid 4746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4745] write(3, "1000", 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4747 ./strace-static-x86_64: Process 4747 attached [pid 4746] <... prctl resumed>) = 0 [pid 4745] <... write resumed>) = 4 [pid 4747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4746] setpgid(0, 0 [pid 4745] close(3 [pid 4747] <... prctl resumed>) = 0 [pid 4746] <... setpgid resumed>) = 0 [pid 4745] <... close resumed>) = 0 [pid 4743] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4747] setpgid(0, 0 [pid 4746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4745] memfd_create("syzkaller", 0 [pid 4744] <... mount resumed>) = -1 EIO (Input/output error) [pid 4743] exit_group(0 [pid 3620] <... openat resumed>) = 3 [pid 4747] <... setpgid resumed>) = 0 [pid 4746] <... openat resumed>) = 3 [pid 4745] <... memfd_create resumed>) = 3 [pid 4744] exit_group(0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4743] <... exit_group resumed>) = ? [pid 4747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4746] write(3, "1000", 4 [pid 4745] ftruncate(3, 0 [pid 4744] <... exit_group resumed>) = ? [pid 4747] <... openat resumed>) = 3 [pid 4746] <... write resumed>) = 4 [pid 4745] <... ftruncate resumed>) = 0 [pid 4747] write(3, "1000", 4 [pid 4746] close(3 [pid 4745] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4744] +++ exited with 0 +++ [pid 4743] +++ exited with 0 +++ [pid 4747] <... write resumed>) = 4 [pid 4746] <... close resumed>) = 0 [pid 4745] <... openat resumed>) = 4 [pid 4747] close(3 [pid 4746] memfd_create("syzkaller", 0 [pid 4745] ioctl(4, LOOP_SET_FD, 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4744, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4743, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4747] <... close resumed>) = 0 [pid 4746] <... memfd_create resumed>) = 3 [pid 4745] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4747] memfd_create("syzkaller", 0 [pid 4746] ftruncate(3, 0 [pid 4745] mkdir("./file0", 0777 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4747] <... memfd_create resumed>) = 3 [pid 4746] <... ftruncate resumed>) = 0 [pid 4745] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4747] ftruncate(3, 0 [pid 4746] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4747] <... ftruncate resumed>) = 0 [pid 4746] <... openat resumed>) = 4 [pid 4745] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4747] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4746] ioctl(4, LOOP_SET_FD, 3 [pid 4745] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 4747] <... openat resumed>) = 4 [pid 4746] <... ioctl resumed>) = 0 [pid 4745] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4747] ioctl(4, LOOP_SET_FD, 3 [pid 4746] mkdir("./file0", 0777 [pid 4745] <... write resumed>) = 21 [pid 4747] <... ioctl resumed>) = 0 [pid 4746] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4747] mkdir("./file0", 0777 [pid 4746] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 4747] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4746] pipe2( [pid 3620] close(3 [pid 4747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4746] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 4747] pipe2( [pid 4746] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4747] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4746] <... write resumed>) = 21 [pid 4747] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4746] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4747] <... write resumed>) = 21 [pid 4747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4748 ./strace-static-x86_64: Process 4748 attached [pid 4748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4748] setpgid(0, 0 [pid 4745] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4748] <... setpgid resumed>) = 0 [pid 4745] exit_group(0 [pid 3617] close(3 [pid 3616] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4749 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4750 [pid 4748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4745] <... exit_group resumed>) = ? [pid 4748] <... openat resumed>) = 3 [pid 4745] +++ exited with 0 +++ [pid 4748] write(3, "1000", 4 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4745, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4750 attached [pid 4748] <... write resumed>) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4749 attached [pid 4750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4748] close(3 [pid 3618] <... openat resumed>) = 3 [pid 4746] <... mount resumed>) = -1 EIO (Input/output error) [pid 4750] <... prctl resumed>) = 0 [pid 4749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4748] <... close resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4750] setpgid(0, 0 [pid 4749] <... prctl resumed>) = 0 [pid 4748] memfd_create("syzkaller", 0 [pid 4746] exit_group(0 [pid 4750] <... setpgid resumed>) = 0 [pid 4749] setpgid(0, 0 [pid 4748] <... memfd_create resumed>) = 3 [pid 4747] <... mount resumed>) = -1 EIO (Input/output error) [pid 4746] <... exit_group resumed>) = ? [pid 4750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4749] <... setpgid resumed>) = 0 [pid 4748] ftruncate(3, 0 [pid 4749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4748] <... ftruncate resumed>) = 0 [pid 4746] +++ exited with 0 +++ [pid 4750] <... openat resumed>) = 3 [pid 4747] exit_group(0 [pid 4750] write(3, "1000", 4 [pid 4749] <... openat resumed>) = 3 [pid 4748] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4747] <... exit_group resumed>) = ? [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4746, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4750] <... write resumed>) = 4 [pid 4749] write(3, "1000", 4 [pid 4748] <... openat resumed>) = 4 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4750] close(3 [pid 4749] <... write resumed>) = 4 [pid 4748] ioctl(4, LOOP_SET_FD, 3 [pid 4747] +++ exited with 0 +++ [pid 3619] <... restart_syscall resumed>) = 0 [pid 4750] <... close resumed>) = 0 [pid 4749] close(3 [pid 4748] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4747, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4750] memfd_create("syzkaller", 0 [pid 4749] <... close resumed>) = 0 [pid 4748] mkdir("./file0", 0777 [pid 4750] <... memfd_create resumed>) = 3 [pid 4749] memfd_create("syzkaller", 0 [pid 4748] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4750] ftruncate(3, 0 [pid 4749] <... memfd_create resumed>) = 3 [pid 4748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... openat resumed>) = 3 [pid 4750] <... ftruncate resumed>) = 0 [pid 4749] ftruncate(3, 0 [pid 4748] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4750] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4749] <... ftruncate resumed>) = 0 [pid 4748] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4750] <... openat resumed>) = 4 [pid 4749] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4748] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4750] ioctl(4, LOOP_SET_FD, 3 [pid 4749] <... openat resumed>) = 4 [pid 4748] <... write resumed>) = 21 [pid 3615] <... openat resumed>) = 3 [pid 4749] ioctl(4, LOOP_SET_FD, 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4749] <... ioctl resumed>) = 0 [pid 4749] mkdir("./file0", 0777 [pid 4750] <... ioctl resumed>) = 0 [pid 4749] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4750] mkdir("./file0", 0777 [pid 4749] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4750] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4749] pipe2( [pid 4750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4749] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4749] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4749] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4750] pipe2([5, 6], 0) = 0 [pid 4750] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4751 ./strace-static-x86_64: Process 4751 attached [pid 4750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3619] close(3 [pid 3615] close(3 [pid 4751] <... prctl resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4751] setpgid(0, 0 [pid 4748] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4751] <... setpgid resumed>) = 0 [pid 4748] exit_group(0 [pid 4751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4748] <... exit_group resumed>) = ? [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4752 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4753 ./strace-static-x86_64: Process 4752 attached [pid 4751] <... openat resumed>) = 3 [pid 4748] +++ exited with 0 +++ [pid 4751] write(3, "1000", 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4748, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4752] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4753 attached ) = 0 [pid 4751] <... write resumed>) = 4 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4752] setpgid(0, 0 [pid 4751] close(3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4753] <... prctl resumed>) = 0 [pid 4752] <... setpgid resumed>) = 0 [pid 4751] <... close resumed>) = 0 [pid 4753] setpgid(0, 0 [pid 4752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4751] memfd_create("syzkaller", 0 [pid 4753] <... setpgid resumed>) = 0 [pid 4752] <... openat resumed>) = 3 [pid 4751] <... memfd_create resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4752] write(3, "1000", 4 [pid 4751] ftruncate(3, 0 [pid 3620] <... openat resumed>) = 3 [pid 4753] <... openat resumed>) = 3 [pid 4752] <... write resumed>) = 4 [pid 4751] <... ftruncate resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4753] write(3, "1000", 4 [pid 4752] close(3 [pid 4751] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4753] <... write resumed>) = 4 [pid 4752] <... close resumed>) = 0 [pid 4751] <... openat resumed>) = 4 [pid 4753] close(3 [pid 4752] memfd_create("syzkaller", 0 [pid 4751] ioctl(4, LOOP_SET_FD, 3 [pid 4753] <... close resumed>) = 0 [pid 4752] <... memfd_create resumed>) = 3 [pid 4751] <... ioctl resumed>) = 0 [pid 4753] memfd_create("syzkaller", 0 [pid 4752] ftruncate(3, 0 [pid 4751] mkdir("./file0", 0777 [pid 4753] <... memfd_create resumed>) = 3 [pid 4752] <... ftruncate resumed>) = 0 [pid 4751] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4753] ftruncate(3, 0 [pid 4752] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4751] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4753] <... ftruncate resumed>) = 0 [pid 4752] <... openat resumed>) = 4 [pid 4751] pipe2( [pid 4753] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4752] ioctl(4, LOOP_SET_FD, 3 [pid 4751] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4749] <... mount resumed>) = -1 EIO (Input/output error) [pid 4753] <... openat resumed>) = 4 [pid 4751] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4753] ioctl(4, LOOP_SET_FD, 3 [pid 4751] <... write resumed>) = 21 [pid 4753] <... ioctl resumed>) = 0 [pid 4751] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4753] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4753] pipe2([5, 6], 0) = 0 [pid 4753] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4752] <... ioctl resumed>) = 0 [pid 4749] exit_group(0 [pid 4752] mkdir("./file0", 0777 [pid 4749] <... exit_group resumed>) = ? [pid 4752] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4752] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4749] +++ exited with 0 +++ [pid 4752] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4749, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4752] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4752] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4752] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4754 [pid 4750] <... mount resumed>) = -1 EIO (Input/output error) [pid 4750] exit_group(0) = ? ./strace-static-x86_64: Process 4754 attached [pid 4750] +++ exited with 0 +++ [pid 4754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4750, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4754] <... prctl resumed>) = 0 [pid 4754] setpgid(0, 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] <... openat resumed>) = 3 [pid 4754] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4754] write(3, "1000", 4 [pid 3617] close(3 [pid 4754] <... write resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 4754] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4754] <... close resumed>) = 0 [pid 4754] memfd_create("syzkaller", 0 [pid 4751] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4755 [pid 4754] <... memfd_create resumed>) = 3 [pid 4751] exit_group(0 [pid 4754] ftruncate(3, 0 [pid 4751] <... exit_group resumed>) = ? [pid 4754] <... ftruncate resumed>) = 0 [pid 4751] +++ exited with 0 +++ [pid 4754] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4751, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4754] <... openat resumed>) = 4 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4754] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4754] <... ioctl resumed>) = 0 [pid 4754] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... openat resumed>) = 3 [pid 4754] pipe2( [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4754] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4754] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4755 attached [pid 4755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4755] setpgid(0, 0) = 0 [pid 4755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4752] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 4755] write(3, "1000", 4 [pid 4752] exit_group(0 [pid 3616] close(3 [pid 4755] <... write resumed>) = 4 [pid 4752] <... exit_group resumed>) = ? [pid 4755] close(3 [pid 4752] +++ exited with 0 +++ [pid 3616] <... close resumed>) = 0 [pid 4755] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4752, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4755] memfd_create("syzkaller", 0) = 3 [pid 4755] ftruncate(3, 0) = 0 [pid 4755] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4756 [pid 4755] ioctl(4, LOOP_SET_FD, 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4755] <... ioctl resumed>) = 0 [pid 4755] mkdir("./file0", 0777 [pid 3619] <... openat resumed>) = 3 [pid 4755] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4755] pipe2([5, 6], 0) = 0 [pid 4755] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4757 ./strace-static-x86_64: Process 4756 attached [pid 4756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4756] setpgid(0, 0) = 0 [pid 4756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4756] write(3, "1000", 4) = 4 [pid 4756] close(3./strace-static-x86_64: Process 4757 attached [pid 4757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4756] <... close resumed>) = 0 [pid 4757] setpgid(0, 0 [pid 4756] memfd_create("syzkaller", 0 [pid 4757] <... setpgid resumed>) = 0 [pid 4756] <... memfd_create resumed>) = 3 [pid 4757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4756] ftruncate(3, 0 [pid 4753] <... mount resumed>) = -1 EIO (Input/output error) [pid 4757] write(3, "1000", 4 [pid 4756] <... ftruncate resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4757] <... write resumed>) = 4 [pid 4756] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4753] exit_group(0 [pid 3619] close(3) = 0 [pid 4757] close(3 [pid 4753] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4757] <... close resumed>) = 0 [pid 4756] <... openat resumed>) = 4 [pid 4757] memfd_create("syzkaller", 0) = 3 [pid 4757] ftruncate(3, 0) = 0 [pid 4756] ioctl(4, LOOP_SET_FD, 3 [pid 4753] +++ exited with 0 +++ [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4758 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4753, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4757] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 4758 attached ) = 4 [pid 4756] <... ioctl resumed>) = 0 [pid 4754] <... mount resumed>) = -1 EIO (Input/output error) [pid 4758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4757] ioctl(4, LOOP_SET_FD, 3 [pid 4756] mkdir("./file0", 0777 [pid 4754] exit_group(0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4758] <... prctl resumed>) = 0 [pid 4757] <... ioctl resumed>) = 0 [pid 4756] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4754] <... exit_group resumed>) = ? [pid 3615] <... openat resumed>) = 3 [pid 4758] setpgid(0, 0 [pid 4757] mkdir("./file0", 0777 [pid 4756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4754] +++ exited with 0 +++ [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4758] <... setpgid resumed>) = 0 [pid 4757] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4756] pipe2( [pid 4758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4756] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4754, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4758] <... openat resumed>) = 3 [pid 4757] pipe2( [pid 4756] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4758] write(3, "1000", 4 [pid 4757] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4756] <... write resumed>) = 21 [pid 4758] <... write resumed>) = 4 [pid 4757] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 4758] close(3 [pid 4757] <... write resumed>) = 21 [pid 4755] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4758] <... close resumed>) = 0 [pid 4757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4755] exit_group(0 [pid 4758] memfd_create("syzkaller", 0) = 3 [pid 4755] <... exit_group resumed>) = ? [pid 4758] ftruncate(3, 0) = 0 [pid 4755] +++ exited with 0 +++ [pid 4758] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4755, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4758] <... openat resumed>) = 4 [pid 3615] <... ioctl resumed>) = 0 [pid 4758] ioctl(4, LOOP_SET_FD, 3 [pid 3615] close(3 [pid 4758] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4758] mkdir("./file0", 0777 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4758] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4758] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4759 [pid 4758] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 4758] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4759 attached [pid 4758] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 4756] <... mount resumed>) = -1 EIO (Input/output error) [pid 4756] exit_group(0) = ? [pid 4756] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4756, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] close(3 [pid 4759] <... prctl resumed>) = 0 [pid 4759] setpgid(0, 0) = 0 [pid 4759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4759] write(3, "1000", 4) = 4 [pid 4759] close(3) = 0 [pid 4759] memfd_create("syzkaller", 0) = 3 [pid 4759] ftruncate(3, 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 4759] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4759] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4759] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4759] pipe2([5, 6], 0) = 0 [pid 4759] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4758] <... mount resumed>) = -1 EIO (Input/output error) [pid 4757] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... ioctl resumed>) = 0 [pid 4758] exit_group(0 [pid 4757] exit_group(0 [pid 3617] close(3./strace-static-x86_64: Process 4760 attached [pid 4758] <... exit_group resumed>) = ? [pid 4757] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4760 [pid 3617] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4758] +++ exited with 0 +++ [pid 4757] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] close(3) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4758, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4757, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4762 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4761 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4760] <... prctl resumed>) = 0 [pid 4760] setpgid(0, 0) = 0 [pid 4760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4761 attached [pid 4761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4760] <... openat resumed>) = 3 [pid 4760] write(3, "1000", 4) = 4 [pid 4761] <... prctl resumed>) = 0 [pid 4760] close(3 [pid 4761] setpgid(0, 0 [pid 4760] <... close resumed>) = 0 [pid 4760] memfd_create("syzkaller", 0 [pid 4761] <... setpgid resumed>) = 0 [pid 4760] <... memfd_create resumed>) = 3 [pid 4761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4760] ftruncate(3, 0 [pid 4761] <... openat resumed>) = 3 [pid 4760] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4762 attached [pid 4761] write(3, "1000", 4 [pid 4760] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4761] <... write resumed>) = 4 [pid 4760] <... openat resumed>) = 4 [pid 4761] close(3 [pid 4760] ioctl(4, LOOP_SET_FD, 3 [pid 4761] <... close resumed>) = 0 [pid 4761] memfd_create("syzkaller", 0 [pid 4760] <... ioctl resumed>) = 0 [pid 4761] <... memfd_create resumed>) = 3 [pid 4760] mkdir("./file0", 0777 [pid 4761] ftruncate(3, 0) = 0 [pid 4760] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4761] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4761] <... openat resumed>) = 4 [pid 4760] pipe2( [pid 4761] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4760] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4761] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4760] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4761] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4760] <... write resumed>) = 21 [pid 4761] pipe2( [pid 4760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4762] <... prctl resumed>) = 0 [pid 4761] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4761] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4761] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4762] setpgid(0, 0) = 0 [pid 4762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4759] <... mount resumed>) = -1 EIO (Input/output error) [pid 4762] write(3, "1000", 4 [pid 4759] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4762] <... write resumed>) = 4 [pid 4759] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3618] close(3 [pid 4759] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4759, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... close resumed>) = 0 [pid 4762] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4763 [pid 4762] memfd_create("syzkaller", 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4762] <... memfd_create resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4762] ftruncate(3, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4764 [pid 4762] <... ftruncate resumed>) = 0 [pid 4762] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4762] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4762] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 4764 attached [pid 4762] pipe2([5, 6], 0) = 0 [pid 4762] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4761] <... mount resumed>) = -1 EIO (Input/output error) [pid 4761] exit_group(0) = ? [pid 4761] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4761, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4763 attached ) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4764] setpgid(0, 0) = 0 [pid 4764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4764] write(3, "1000", 4) = 4 [pid 4764] close(3) = 0 [pid 4763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4764] memfd_create("syzkaller", 0) = 3 [pid 4764] ftruncate(3, 0) = 0 [pid 4764] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4764] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4763] <... prctl resumed>) = 0 [pid 4764] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4763] setpgid(0, 0 [pid 4764] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4764] pipe2([5, 6], 0) = 0 [pid 4763] <... setpgid resumed>) = 0 [pid 4764] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4764] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 4763] write(3, "1000", 4) = 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4763] close(3) = 0 [pid 4763] memfd_create("syzkaller", 0) = 3 [pid 4763] ftruncate(3, 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4765 [pid 4763] <... ftruncate resumed>) = 0 [pid 4763] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4763] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4763] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 4765 attached [pid 4765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4763] pipe2([5, 6], 0) = 0 [pid 4763] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4765] <... prctl resumed>) = 0 [pid 4763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4765] setpgid(0, 0) = 0 [pid 4762] <... mount resumed>) = -1 EIO (Input/output error) [pid 4765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4762] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4762] <... exit_group resumed>) = ? [pid 3617] close(3 [pid 4762] +++ exited with 0 +++ [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4762, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4765] write(3, "1000", 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4766 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4765] <... write resumed>) = 4 [pid 4765] close(3) = 0 [pid 4765] memfd_create("syzkaller", 0) = 3 [pid 4765] ftruncate(3, 0) = 0 [pid 4765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4760] <... mount resumed>) = -1 EIO (Input/output error) [pid 4765] ioctl(4, LOOP_SET_FD, 3 [pid 4760] exit_group(0./strace-static-x86_64: Process 4766 attached ) = ? [pid 4766] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4760] +++ exited with 0 +++ [pid 4766] <... prctl resumed>) = 0 [pid 4766] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4760, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4766] <... setpgid resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... restart_syscall resumed>) = 0 [pid 4766] <... openat resumed>) = 3 [pid 4766] write(3, "1000", 4) = 4 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4766] close(3 [pid 3620] <... openat resumed>) = 3 [pid 4766] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4766] memfd_create("syzkaller", 0) = 3 [pid 4766] ftruncate(3, 0) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4766] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4765] <... ioctl resumed>) = 0 [pid 4765] mkdir("./file0", 0777 [pid 4764] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] close(3 [pid 4765] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4764] exit_group(0 [pid 4765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 4765] pipe2( [pid 4764] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4766] <... openat resumed>) = 4 [pid 4765] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4765] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4767 attached ) = 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4767 [pid 4766] ioctl(4, LOOP_SET_FD, 3 [pid 4765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4764] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4764, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4766] <... ioctl resumed>) = 0 [pid 4766] mkdir("./file0", 0777 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4766] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4767] <... prctl resumed>) = 0 [pid 4766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4766] pipe2( [pid 4767] setpgid(0, 0 [pid 4766] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4767] <... setpgid resumed>) = 0 [pid 4766] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4767] write(3, "1000", 4) = 4 [pid 4767] close(3) = 0 [pid 4767] memfd_create("syzkaller", 0) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 4767] ftruncate(3, 0) = 0 [pid 4763] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] close(3 [pid 4767] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4767] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4767] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4767] pipe2([5, 6], 0) = 0 [pid 4767] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4763] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 4763] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4768 [pid 4763] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4763, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4768 attached [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4769 [pid 4768] <... prctl resumed>) = 0 [pid 4768] setpgid(0, 0) = 0 [pid 4765] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4769 attached [pid 4768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4766] <... mount resumed>) = -1 EIO (Input/output error) [pid 4765] exit_group(0 [pid 4769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4768] <... openat resumed>) = 3 [pid 4766] exit_group(0 [pid 4765] <... exit_group resumed>) = ? [pid 3619] <... ioctl resumed>) = 0 [pid 4769] <... prctl resumed>) = 0 [pid 4768] write(3, "1000", 4 [pid 4766] <... exit_group resumed>) = ? [pid 4765] +++ exited with 0 +++ [pid 3619] close(3 [pid 4769] setpgid(0, 0 [pid 4768] <... write resumed>) = 4 [pid 4766] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4765, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4769] <... setpgid resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4766, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4770 attached [pid 4769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4768] close(3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4769] <... openat resumed>) = 3 [pid 4768] <... close resumed>) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4770 [pid 4769] write(3, "1000", 4 [pid 4768] memfd_create("syzkaller", 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4770] <... prctl resumed>) = 0 [pid 4770] setpgid(0, 0 [pid 4769] <... write resumed>) = 4 [pid 4768] <... memfd_create resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4770] <... setpgid resumed>) = 0 [pid 4769] close(3 [pid 4768] ftruncate(3, 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... openat resumed>) = 3 [pid 4770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4768] <... ftruncate resumed>) = 0 [pid 4770] <... openat resumed>) = 3 [pid 4769] <... close resumed>) = 0 [pid 4768] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4770] write(3, "1000", 4 [pid 4769] memfd_create("syzkaller", 0 [pid 4768] <... openat resumed>) = 4 [pid 4770] <... write resumed>) = 4 [pid 4769] <... memfd_create resumed>) = 3 [pid 4768] ioctl(4, LOOP_SET_FD, 3 [pid 4770] close(3 [pid 4769] ftruncate(3, 0 [pid 4770] <... close resumed>) = 0 [pid 4769] <... ftruncate resumed>) = 0 [pid 4768] <... ioctl resumed>) = 0 [pid 4769] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4770] memfd_create("syzkaller", 0 [pid 4769] <... openat resumed>) = 4 [pid 4768] mkdir("./file0", 0777 [pid 4770] <... memfd_create resumed>) = 3 [pid 4769] ioctl(4, LOOP_SET_FD, 3 [pid 4770] ftruncate(3, 0 [pid 4768] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4770] <... ftruncate resumed>) = 0 [pid 4769] <... ioctl resumed>) = 0 [pid 4768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4770] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4769] mkdir("./file0", 0777 [pid 4768] pipe2( [pid 4770] <... openat resumed>) = 4 [pid 4769] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4770] ioctl(4, LOOP_SET_FD, 3 [pid 4769] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4768] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4770] <... ioctl resumed>) = 0 [pid 4769] pipe2( [pid 4768] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4767] <... mount resumed>) = -1 EIO (Input/output error) [pid 4770] mkdir("./file0", 0777 [pid 4769] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4768] <... write resumed>) = 21 [pid 4767] exit_group(0 [pid 4770] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4769] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4767] <... exit_group resumed>) = ? [pid 4770] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4769] <... write resumed>) = 21 [pid 4767] +++ exited with 0 +++ [pid 4769] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4767, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4770] pipe2( [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4770] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4770] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4770] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4771 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4772 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4773 ./strace-static-x86_64: Process 4773 attached ./strace-static-x86_64: Process 4771 attached [pid 4771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4771] setpgid(0, 0 [pid 4773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4771] <... setpgid resumed>) = 0 [pid 4773] <... prctl resumed>) = 0 [pid 4773] setpgid(0, 0./strace-static-x86_64: Process 4772 attached ) = 0 [pid 4773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4773] <... openat resumed>) = 3 [pid 4772] <... prctl resumed>) = 0 [pid 4771] <... openat resumed>) = 3 [pid 4773] write(3, "1000", 4 [pid 4772] setpgid(0, 0 [pid 4771] write(3, "1000", 4 [pid 4773] <... write resumed>) = 4 [pid 4772] <... setpgid resumed>) = 0 [pid 4773] close(3 [pid 4772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4771] <... write resumed>) = 4 [pid 4773] <... close resumed>) = 0 [pid 4772] <... openat resumed>) = 3 [pid 4771] close(3 [pid 4773] memfd_create("syzkaller", 0 [pid 4772] write(3, "1000", 4 [pid 4771] <... close resumed>) = 0 [pid 4773] <... memfd_create resumed>) = 3 [pid 4772] <... write resumed>) = 4 [pid 4771] memfd_create("syzkaller", 0 [pid 4773] ftruncate(3, 0 [pid 4772] close(3 [pid 4771] <... memfd_create resumed>) = 3 [pid 4773] <... ftruncate resumed>) = 0 [pid 4772] <... close resumed>) = 0 [pid 4773] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4772] memfd_create("syzkaller", 0 [pid 4771] ftruncate(3, 0 [pid 4773] <... openat resumed>) = 4 [pid 4772] <... memfd_create resumed>) = 3 [pid 4771] <... ftruncate resumed>) = 0 [pid 4773] ioctl(4, LOOP_SET_FD, 3 [pid 4772] ftruncate(3, 0 [pid 4771] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4773] <... ioctl resumed>) = 0 [pid 4772] <... ftruncate resumed>) = 0 [pid 4771] <... openat resumed>) = 4 [pid 4773] mkdir("./file0", 0777 [pid 4772] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4768] <... mount resumed>) = -1 EIO (Input/output error) [pid 4773] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4772] <... openat resumed>) = 4 [pid 4771] ioctl(4, LOOP_SET_FD, 3 [pid 4768] exit_group(0 [pid 4773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4772] ioctl(4, LOOP_SET_FD, 3 [pid 4771] <... ioctl resumed>) = 0 [pid 4768] <... exit_group resumed>) = ? [pid 4773] pipe2( [pid 4772] <... ioctl resumed>) = 0 [pid 4771] mkdir("./file0", 0777 [pid 4773] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4772] mkdir("./file0", 0777 [pid 4768] +++ exited with 0 +++ [pid 4771] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4773] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4772] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4773] <... write resumed>) = 21 [pid 4772] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4768, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4771] pipe2( [pid 4773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4772] pipe2( [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4772] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4771] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4772] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4771] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4772] <... write resumed>) = 21 [pid 4771] <... write resumed>) = 21 [pid 4769] <... mount resumed>) = -1 EIO (Input/output error) [pid 4772] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4769] exit_group(0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4769] <... exit_group resumed>) = ? [pid 3620] <... openat resumed>) = 3 [pid 4769] +++ exited with 0 +++ [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4769, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4770] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4770] exit_group(0 [pid 3620] close(3 [pid 3618] close(3 [pid 4770] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4770] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4770, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4774 [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4775 [pid 3619] <... restart_syscall resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4774 attached ./strace-static-x86_64: Process 4775 attached [pid 4774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4774] <... prctl resumed>) = 0 [pid 4775] <... prctl resumed>) = 0 [pid 4774] setpgid(0, 0 [pid 4775] setpgid(0, 0) = 0 [pid 4775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4774] <... setpgid resumed>) = 0 [pid 4775] <... openat resumed>) = 3 [pid 4774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4775] write(3, "1000", 4 [pid 4774] <... openat resumed>) = 3 [pid 4775] <... write resumed>) = 4 [pid 4775] close(3 [pid 4774] write(3, "1000", 4 [pid 4775] <... close resumed>) = 0 [pid 4775] memfd_create("syzkaller", 0 [pid 4774] <... write resumed>) = 4 [pid 4775] <... memfd_create resumed>) = 3 [pid 4774] close(3 [pid 4775] ftruncate(3, 0 [pid 4774] <... close resumed>) = 0 [pid 4775] <... ftruncate resumed>) = 0 [pid 4775] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4774] memfd_create("syzkaller", 0 [pid 4775] <... openat resumed>) = 4 [pid 4775] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4774] <... memfd_create resumed>) = 3 [pid 4775] mkdir("./file0", 0777 [pid 4774] ftruncate(3, 0 [pid 4775] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4774] <... ftruncate resumed>) = 0 [pid 4775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4774] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4775] pipe2([5, 6], 0) = 0 [pid 4774] <... openat resumed>) = 4 [pid 4775] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4774] ioctl(4, LOOP_SET_FD, 3 [pid 4775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4774] <... ioctl resumed>) = 0 [pid 4774] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4774] pipe2([5, 6], 0) = 0 [pid 4774] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4773] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 4773] exit_group(0 [pid 3619] close(3 [pid 4773] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 4773] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4773, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4776 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4776 attached [pid 4776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4776] setpgid(0, 0) = 0 [pid 4776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4776] write(3, "1000", 4) = 4 [pid 4776] close(3) = 0 [pid 4776] memfd_create("syzkaller", 0) = 3 [pid 4776] ftruncate(3, 0) = 0 [pid 4776] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4776] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4774] <... mount resumed>) = -1 EIO (Input/output error) [pid 4776] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4774] exit_group(0 [pid 4776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4774] <... exit_group resumed>) = ? [pid 4776] pipe2([5, 6], 0) = 0 [pid 4776] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4774] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4774, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4777 [pid 4772] <... mount resumed>) = -1 EIO (Input/output error) [pid 4772] exit_group(0) = ? [pid 4772] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4772, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4777 attached [pid 4777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4777] setpgid(0, 0) = 0 [pid 4777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4777] write(3, "1000", 4) = 4 [pid 4777] close(3 [pid 4771] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 4777] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 4771] exit_group(0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4777] memfd_create("syzkaller", 0 [pid 4771] <... exit_group resumed>) = ? [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4778 [pid 4777] <... memfd_create resumed>) = 3 [pid 4771] +++ exited with 0 +++ [pid 4777] ftruncate(3, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4771, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4777] <... ftruncate resumed>) = 0 [pid 4777] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 4777] <... openat resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4777] mkdir("./file0", 0777 [pid 3616] <... ioctl resumed>) = 0 [pid 4777] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] close(3 [pid 4777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... close resumed>) = 0 [pid 4777] pipe2( [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4777] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4777] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4779 [pid 4777] <... write resumed>) = 21 [pid 4777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4779 attached ./strace-static-x86_64: Process 4778 attached [pid 4779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4779] <... prctl resumed>) = 0 [pid 4778] <... prctl resumed>) = 0 [pid 4779] setpgid(0, 0 [pid 4778] setpgid(0, 0 [pid 4775] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4779] <... setpgid resumed>) = 0 [pid 4775] exit_group(0 [pid 3617] close(3 [pid 4779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4775] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4779] <... openat resumed>) = 3 [pid 4775] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4779] write(3, "1000", 4) = 4 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4780 [pid 4779] close(3) = 0 [pid 4778] <... setpgid resumed>) = 0 [pid 4779] memfd_create("syzkaller", 0) = 3 [pid 4778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4775, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 4779] ftruncate(3, 0) = 0 [pid 4779] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4778] <... openat resumed>) = 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4779] <... openat resumed>) = 4 [pid 4778] write(3, "1000", 4 [pid 3618] <... openat resumed>) = 3 [pid 4779] ioctl(4, LOOP_SET_FD, 3 [pid 4776] <... mount resumed>) = -1 EIO (Input/output error) [pid 4779] <... ioctl resumed>) = 0 [pid 4776] exit_group(0 [pid 4779] mkdir("./file0", 0777 [pid 4776] <... exit_group resumed>) = ? [pid 4779] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4776] +++ exited with 0 +++ [pid 4779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4776, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4779] pipe2([5, 6], 0) = 0 [pid 4779] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4779] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 4779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4778] <... write resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4778] close(3) = 0 [pid 4778] memfd_create("syzkaller", 0) = 3 [pid 4778] ftruncate(3, 0) = 0 [pid 4778] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4778] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4778] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4778] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4778] pipe2([5, 6], 0) = 0 [pid 4778] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4778] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4780 attached [pid 4780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4777] <... mount resumed>) = -1 EIO (Input/output error) [pid 4780] setpgid(0, 0) = 0 [pid 4777] exit_group(0 [pid 4780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4779] <... mount resumed>) = -1 EIO (Input/output error) [pid 4777] <... exit_group resumed>) = ? [pid 4780] write(3, "1000", 4 [pid 4777] +++ exited with 0 +++ [pid 4780] <... write resumed>) = 4 [pid 4779] exit_group(0 [pid 4780] close(3 [pid 4779] <... exit_group resumed>) = ? [pid 4778] <... mount resumed>) = -1 EIO (Input/output error) [pid 4780] <... close resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4777, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4779] +++ exited with 0 +++ [pid 4780] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4779, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... restart_syscall resumed>) = 0 [pid 4778] exit_group(0 [pid 4780] <... memfd_create resumed>) = 3 [pid 4778] <... exit_group resumed>) = ? [pid 4780] ftruncate(3, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4780] <... ftruncate resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4780] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4780] <... openat resumed>) = 4 [pid 4780] ioctl(4, LOOP_SET_FD, 3 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4780] <... ioctl resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 4780] mkdir("./file0", 0777 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4780] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 4780] pipe2( [pid 3619] close(3 [pid 3618] close(3 [pid 4780] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 4780] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4780] <... write resumed>) = 21 [pid 4778] +++ exited with 0 +++ [pid 4780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4781 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4782 ./strace-static-x86_64: Process 4782 attached ./strace-static-x86_64: Process 4781 attached [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4778, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4782] <... prctl resumed>) = 0 [pid 4781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... restart_syscall resumed>) = 0 [pid 4782] setpgid(0, 0 [pid 4781] <... prctl resumed>) = 0 [pid 4782] <... setpgid resumed>) = 0 [pid 4781] setpgid(0, 0 [pid 4782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4781] <... setpgid resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4782] <... openat resumed>) = 3 [pid 4781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... openat resumed>) = 3 [pid 3616] close(3 [pid 3615] close(3 [pid 4782] write(3, "1000", 4 [pid 4781] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4782] <... write resumed>) = 4 [pid 4781] write(3, "1000", 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4782] close(3 [pid 4781] <... write resumed>) = 4 ./strace-static-x86_64: Process 4783 attached ./strace-static-x86_64: Process 4784 attached [pid 4782] <... close resumed>) = 0 [pid 4781] close(3 [pid 4782] memfd_create("syzkaller", 0 [pid 4781] <... close resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4783 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4784 [pid 4782] <... memfd_create resumed>) = 3 [pid 4781] memfd_create("syzkaller", 0 [pid 4784] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4783] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4782] ftruncate(3, 0 [pid 4781] <... memfd_create resumed>) = 3 [pid 4784] <... prctl resumed>) = 0 [pid 4783] <... prctl resumed>) = 0 [pid 4782] <... ftruncate resumed>) = 0 [pid 4781] ftruncate(3, 0 [pid 4780] <... mount resumed>) = -1 EIO (Input/output error) [pid 4784] setpgid(0, 0 [pid 4783] setpgid(0, 0 [pid 4782] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4781] <... ftruncate resumed>) = 0 [pid 4784] <... setpgid resumed>) = 0 [pid 4783] <... setpgid resumed>) = 0 [pid 4782] <... openat resumed>) = 4 [pid 4781] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4780] exit_group(0 [pid 4784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4782] ioctl(4, LOOP_SET_FD, 3 [pid 4781] <... openat resumed>) = 4 [pid 4780] <... exit_group resumed>) = ? [pid 4784] <... openat resumed>) = 3 [pid 4783] <... openat resumed>) = 3 [pid 4782] <... ioctl resumed>) = 0 [pid 4781] ioctl(4, LOOP_SET_FD, 3 [pid 4784] write(3, "1000", 4 [pid 4783] write(3, "1000", 4 [pid 4782] mkdir("./file0", 0777 [pid 4781] <... ioctl resumed>) = 0 [pid 4784] <... write resumed>) = 4 [pid 4783] <... write resumed>) = 4 [pid 4782] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4781] mkdir("./file0", 0777 [pid 4780] +++ exited with 0 +++ [pid 4784] close(3 [pid 4783] close(3 [pid 4782] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4781] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4780, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4784] <... close resumed>) = 0 [pid 4783] <... close resumed>) = 0 [pid 4782] pipe2( [pid 4781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4784] memfd_create("syzkaller", 0 [pid 4783] memfd_create("syzkaller", 0 [pid 4782] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4781] pipe2( [pid 3617] <... restart_syscall resumed>) = 0 [pid 4784] <... memfd_create resumed>) = 3 [pid 4783] <... memfd_create resumed>) = 3 [pid 4782] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4781] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4784] ftruncate(3, 0 [pid 4783] ftruncate(3, 0 [pid 4782] <... write resumed>) = 21 [pid 4781] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4784] <... ftruncate resumed>) = 0 [pid 4783] <... ftruncate resumed>) = 0 [pid 4782] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4781] <... write resumed>) = 21 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4784] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4783] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4781] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4784] <... openat resumed>) = 4 [pid 4783] <... openat resumed>) = 4 [pid 3620] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4784] ioctl(4, LOOP_SET_FD, 3 [pid 4783] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... close resumed>) = 0 [pid 4784] <... ioctl resumed>) = 0 [pid 4783] <... ioctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4784] mkdir("./file0", 0777 [pid 4783] mkdir("./file0", 0777 [pid 4784] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4783] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4785 [pid 4784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4784] pipe2( [pid 4783] pipe2( [pid 4784] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4783] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4784] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4783] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4784] <... write resumed>) = 21 [pid 4783] <... write resumed>) = 21 [pid 4782] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4785 attached [pid 4784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4782] exit_group(0 [pid 4785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4782] <... exit_group resumed>) = ? [pid 4785] <... prctl resumed>) = 0 [pid 4782] +++ exited with 0 +++ [pid 4785] setpgid(0, 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4782, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4785] <... setpgid resumed>) = 0 [pid 4785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4785] write(3, "1000", 4 [pid 4781] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4781] exit_group(0 [pid 4785] <... write resumed>) = 4 [pid 4785] close(3 [pid 4781] <... exit_group resumed>) = ? [pid 3618] <... openat resumed>) = 3 [pid 4785] <... close resumed>) = 0 [pid 4781] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4781, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4785] memfd_create("syzkaller", 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4785] <... memfd_create resumed>) = 3 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4785] ftruncate(3, 0) = 0 [pid 4785] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4786 [pid 4785] <... openat resumed>) = 4 [pid 3619] <... openat resumed>) = 3 [pid 4785] ioctl(4, LOOP_SET_FD, 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4785] <... ioctl resumed>) = 0 [pid 4785] mkdir("./file0", 0777./strace-static-x86_64: Process 4786 attached ) = -1 EEXIST (File exists) [pid 4785] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4786] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4785] pipe2( [pid 4786] <... prctl resumed>) = 0 [pid 4785] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4784] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4786] setpgid(0, 0 [pid 4785] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... close resumed>) = 0 [pid 4786] <... setpgid resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4785] <... write resumed>) = 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4787 [pid 4786] <... openat resumed>) = 3 [pid 4785] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4786] write(3, "1000", 4) = 4 [pid 4786] close(3) = 0 ./strace-static-x86_64: Process 4787 attached [pid 4786] memfd_create("syzkaller", 0 [pid 4783] <... mount resumed>) = -1 EIO (Input/output error) [pid 4787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4783] exit_group(0 [pid 4787] <... prctl resumed>) = 0 [pid 4783] <... exit_group resumed>) = ? [pid 4787] setpgid(0, 0) = 0 [pid 4787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4783] +++ exited with 0 +++ [pid 4787] <... openat resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4783, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4787] write(3, "1000", 4) = 4 [pid 4787] close(3) = 0 [pid 4787] memfd_create("syzkaller", 0) = 3 [pid 4787] ftruncate(3, 0) = 0 [pid 4787] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4787] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... openat resumed>) = 3 [pid 4787] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4787] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4787] pipe2([5, 6], 0) = 0 [pid 4787] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4787] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4786] <... memfd_create resumed>) = 3 [pid 4785] <... mount resumed>) = -1 EIO (Input/output error) [pid 4784] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4784] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 4786] ftruncate(3, 0 [pid 3616] close(3 [pid 4785] exit_group(0 [pid 4784] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4786] <... ftruncate resumed>) = 0 [pid 4785] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4784, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4786] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4785] +++ exited with 0 +++ [pid 4786] <... openat resumed>) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4785, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4788 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4789 [pid 4786] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4786] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4786] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4788 attached [pid 4786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4786] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4788] <... prctl resumed>) = 0 [pid 4786] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4788] setpgid(0, 0 [pid 4786] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... close resumed>) = 0 [pid 4788] <... setpgid resumed>) = 0 [pid 4786] <... write resumed>) = 21 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4789 attached [pid 4788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4787] <... mount resumed>) = -1 EIO (Input/output error) [pid 4786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4788] <... openat resumed>) = 3 [pid 4787] exit_group(0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4790 [pid 4788] write(3, "1000", 4 [pid 4787] <... exit_group resumed>) = ? [pid 4788] <... write resumed>) = 4 [pid 4787] +++ exited with 0 +++ [pid 4788] close(3./strace-static-x86_64: Process 4790 attached [pid 4789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4788] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4787, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4789] <... prctl resumed>) = 0 [pid 4788] memfd_create("syzkaller", 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4789] setpgid(0, 0 [pid 4788] <... memfd_create resumed>) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4790] <... prctl resumed>) = 0 [pid 4789] <... setpgid resumed>) = 0 [pid 4788] ftruncate(3, 0 [pid 4790] setpgid(0, 0 [pid 4788] <... ftruncate resumed>) = 0 [pid 4789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4790] <... setpgid resumed>) = 0 [pid 4788] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4789] <... openat resumed>) = 3 [pid 4788] <... openat resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4790] <... openat resumed>) = 3 [pid 4789] write(3, "1000", 4 [pid 4788] ioctl(4, LOOP_SET_FD, 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4790] write(3, "1000", 4 [pid 4789] <... write resumed>) = 4 [pid 4788] <... ioctl resumed>) = 0 [pid 4790] <... write resumed>) = 4 [pid 4789] close(3 [pid 4788] mkdir("./file0", 0777 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4790] close(3 [pid 4789] <... close resumed>) = 0 [pid 4788] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] close(3 [pid 3615] close(3 [pid 4790] <... close resumed>) = 0 [pid 4789] memfd_create("syzkaller", 0 [pid 4788] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4790] memfd_create("syzkaller", 0 [pid 4789] <... memfd_create resumed>) = 3 [pid 4788] pipe2( [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4790] <... memfd_create resumed>) = 3 [pid 4788] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4790] ftruncate(3, 0 [pid 4788] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4791 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4792 [pid 4790] <... ftruncate resumed>) = 0 [pid 4788] <... write resumed>) = 21 [pid 4790] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4788] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4790] <... openat resumed>) = 4 [pid 4789] ftruncate(3, 0 [pid 4790] ioctl(4, LOOP_SET_FD, 3 [pid 4789] <... ftruncate resumed>) = 0 [pid 4790] <... ioctl resumed>) = 0 [pid 4789] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4790] mkdir("./file0", 0777 [pid 4789] <... openat resumed>) = 4 ./strace-static-x86_64: Process 4792 attached [pid 4790] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4789] ioctl(4, LOOP_SET_FD, 3 [pid 4786] <... mount resumed>) = -1 EIO (Input/output error) [pid 4792] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4790] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4789] <... ioctl resumed>) = 0 [pid 4786] exit_group(0./strace-static-x86_64: Process 4791 attached [pid 4792] <... prctl resumed>) = 0 [pid 4790] pipe2( [pid 4789] mkdir("./file0", 0777 [pid 4786] <... exit_group resumed>) = ? [pid 4792] setpgid(0, 0 [pid 4791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4790] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4789] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4792] <... setpgid resumed>) = 0 [pid 4791] <... prctl resumed>) = 0 [pid 4790] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4791] setpgid(0, 0 [pid 4790] <... write resumed>) = 21 [pid 4789] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4786] +++ exited with 0 +++ [pid 4792] <... openat resumed>) = 3 [pid 4791] <... setpgid resumed>) = 0 [pid 4790] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4789] pipe2( [pid 4792] write(3, "1000", 4 [pid 4791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4792] <... write resumed>) = 4 [pid 4791] <... openat resumed>) = 3 [pid 4792] close(3 [pid 4791] write(3, "1000", 4 [pid 4792] <... close resumed>) = 0 [pid 4791] <... write resumed>) = 4 [pid 4792] memfd_create("syzkaller", 0 [pid 4791] close(3 [pid 4789] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4788] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4786, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4792] <... memfd_create resumed>) = 3 [pid 4791] <... close resumed>) = 0 [pid 4792] ftruncate(3, 0 [pid 4791] memfd_create("syzkaller", 0 [pid 4792] <... ftruncate resumed>) = 0 [pid 4791] <... memfd_create resumed>) = 3 [pid 4792] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4791] ftruncate(3, 0 [pid 4792] <... openat resumed>) = 4 [pid 4791] <... ftruncate resumed>) = 0 [pid 4792] ioctl(4, LOOP_SET_FD, 3 [pid 4791] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4792] <... ioctl resumed>) = 0 [pid 4791] <... openat resumed>) = 4 [pid 4792] mkdir("./file0", 0777 [pid 4791] ioctl(4, LOOP_SET_FD, 3 [pid 4792] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4791] <... ioctl resumed>) = 0 [pid 4792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4791] mkdir("./file0", 0777 [pid 4792] pipe2( [pid 4791] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4792] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4791] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4792] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4791] pipe2( [pid 4792] <... write resumed>) = 21 [pid 4791] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4791] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4789] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4791] <... write resumed>) = 21 [pid 4789] <... write resumed>) = 21 [pid 4788] exit_group(0 [pid 4791] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4789] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4788] <... exit_group resumed>) = ? [pid 3618] <... restart_syscall resumed>) = 0 [pid 4788] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4788, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3619] <... restart_syscall resumed>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4790] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4790] exit_group(0 [pid 3618] close(3 [pid 4790] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4791] <... mount resumed>) = -1 EIO (Input/output error) [pid 4791] exit_group(0) = ? [pid 4790] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4790, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4793 [pid 4791] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4791, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] <... restart_syscall resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] close(3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4794 ./strace-static-x86_64: Process 4794 attached [pid 4794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4794] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4793 attached [pid 4793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4793] <... prctl resumed>) = 0 [pid 4794] write(3, "1000", 4) = 4 [pid 4793] setpgid(0, 0 [pid 4794] close(3) = 0 [pid 4794] memfd_create("syzkaller", 0 [pid 4793] <... setpgid resumed>) = 0 [pid 4794] <... memfd_create resumed>) = 3 [pid 4794] ftruncate(3, 0) = 0 [pid 4793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4794] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4793] <... openat resumed>) = 3 [pid 4794] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4793] write(3, "1000", 4 [pid 4794] mkdir("./file0", 0777 [pid 4793] <... write resumed>) = 4 [pid 4794] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4794] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4793] close(3 [pid 4794] pipe2( [pid 4793] <... close resumed>) = 0 [pid 4794] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4794] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4794] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4793] memfd_create("syzkaller", 0) = 3 [pid 4793] ftruncate(3, 0) = 0 [pid 4793] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4793] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4793] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4793] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4793] pipe2([5, 6], 0) = 0 [pid 4793] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4793] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4789] <... mount resumed>) = -1 EIO (Input/output error) [pid 4789] exit_group(0) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] close(3 [pid 4789] +++ exited with 0 +++ [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4789, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4795 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4796 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4796 attached ./strace-static-x86_64: Process 4795 attached [pid 4796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4792] <... mount resumed>) = -1 EIO (Input/output error) [pid 4796] <... prctl resumed>) = 0 [pid 4795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4792] exit_group(0 [pid 4796] setpgid(0, 0 [pid 4795] <... prctl resumed>) = 0 [pid 4792] <... exit_group resumed>) = ? [pid 4795] setpgid(0, 0) = 0 [pid 4792] +++ exited with 0 +++ [pid 4796] <... setpgid resumed>) = 0 [pid 4796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4792, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4796] <... openat resumed>) = 3 [pid 4795] <... openat resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4795] write(3, "1000", 4 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4795] <... write resumed>) = 4 [pid 4795] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4795] memfd_create("syzkaller", 0 [pid 3615] <... openat resumed>) = 3 [pid 4795] <... memfd_create resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4795] ftruncate(3, 0) = 0 [pid 4795] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4795] ioctl(4, LOOP_SET_FD, 3 [pid 4796] write(3, "1000", 4 [pid 4795] <... ioctl resumed>) = 0 [pid 4796] <... write resumed>) = 4 [pid 4795] mkdir("./file0", 0777 [pid 4796] close(3 [pid 4795] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4796] <... close resumed>) = 0 [pid 4795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4796] memfd_create("syzkaller", 0 [pid 4795] pipe2( [pid 4796] <... memfd_create resumed>) = 3 [pid 4795] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4796] ftruncate(3, 0 [pid 4795] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4793] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4796] <... ftruncate resumed>) = 0 [pid 4795] <... write resumed>) = 21 [pid 4793] exit_group(0 [pid 3616] close(3 [pid 3615] close(3 [pid 4796] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4793] <... exit_group resumed>) = ? [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4796] <... openat resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4796] ioctl(4, LOOP_SET_FD, 3 [pid 4793] +++ exited with 0 +++ [pid 4796] <... ioctl resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4793, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4797 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4798 [pid 4796] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4796] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4796] pipe2( [pid 3618] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4797 attached [pid 4797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 4798 attached [pid 4797] setpgid(0, 0) = 0 [pid 4798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4798] setpgid(0, 0 [pid 4797] <... openat resumed>) = 3 [pid 4798] <... setpgid resumed>) = 0 [pid 4797] write(3, "1000", 4 [pid 4798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4797] <... write resumed>) = 4 [pid 4798] <... openat resumed>) = 3 [pid 4797] close(3 [pid 4798] write(3, "1000", 4 [pid 4797] <... close resumed>) = 0 [pid 4798] <... write resumed>) = 4 [pid 4797] memfd_create("syzkaller", 0 [pid 4798] close(3 [pid 4797] <... memfd_create resumed>) = 3 [pid 4798] <... close resumed>) = 0 [pid 4797] ftruncate(3, 0 [pid 4798] memfd_create("syzkaller", 0 [pid 4797] <... ftruncate resumed>) = 0 [pid 4798] <... memfd_create resumed>) = 3 [pid 4797] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4798] ftruncate(3, 0 [pid 4797] <... openat resumed>) = 4 [pid 4798] <... ftruncate resumed>) = 0 [pid 4797] ioctl(4, LOOP_SET_FD, 3 [pid 4798] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4797] <... ioctl resumed>) = 0 [pid 4798] <... openat resumed>) = 4 [pid 4797] mkdir("./file0", 0777 [pid 4798] ioctl(4, LOOP_SET_FD, 3 [pid 4797] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4798] <... ioctl resumed>) = 0 [pid 4797] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4798] mkdir("./file0", 0777 [pid 4797] pipe2( [pid 4798] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4797] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4798] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4797] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4798] pipe2( [pid 4797] <... write resumed>) = 21 [pid 4798] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4797] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4798] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4798] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4796] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4794] <... mount resumed>) = -1 EIO (Input/output error) [pid 4796] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4794] exit_group(0 [pid 4796] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4794] <... exit_group resumed>) = ? [pid 4794] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4794, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4795] <... mount resumed>) = -1 EIO (Input/output error) [pid 4795] exit_group(0) = ? [pid 4795] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4795, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3619] close(3) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4799 [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4800 ./strace-static-x86_64: Process 4800 attached ./strace-static-x86_64: Process 4799 attached [pid 4796] <... mount resumed>) = -1 EIO (Input/output error) [pid 4796] exit_group(0 [pid 4799] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4796] <... exit_group resumed>) = ? [pid 4799] <... prctl resumed>) = 0 [pid 4796] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4796, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4799] setpgid(0, 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4799] <... setpgid resumed>) = 0 [pid 4800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4800] <... prctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4800] setpgid(0, 0 [pid 4799] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4800] <... setpgid resumed>) = 0 [pid 4799] write(3, "1000", 4 [pid 4800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4799] <... write resumed>) = 4 [pid 4800] <... openat resumed>) = 3 [pid 4799] close(3 [pid 4800] write(3, "1000", 4 [pid 4799] <... close resumed>) = 0 [pid 4800] <... write resumed>) = 4 [pid 4799] memfd_create("syzkaller", 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4800] close(3 [pid 4799] <... memfd_create resumed>) = 3 [pid 3620] close(3 [pid 4800] <... close resumed>) = 0 [pid 4799] ftruncate(3, 0 [pid 3620] <... close resumed>) = 0 [pid 4800] memfd_create("syzkaller", 0 [pid 4799] <... ftruncate resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4800] <... memfd_create resumed>) = 3 [pid 4799] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4800] ftruncate(3, 0 [pid 4799] <... openat resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4801 [pid 4800] <... ftruncate resumed>) = 0 [pid 4799] ioctl(4, LOOP_SET_FD, 3 [pid 4800] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4799] <... ioctl resumed>) = 0 [pid 4800] <... openat resumed>) = 4 [pid 4799] mkdir("./file0", 0777 [pid 4800] ioctl(4, LOOP_SET_FD, 3 [pid 4799] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4800] <... ioctl resumed>) = 0 [pid 4799] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4800] mkdir("./file0", 0777 [pid 4799] pipe2( [pid 4800] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4799] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4800] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4799] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21./strace-static-x86_64: Process 4801 attached [pid 4800] pipe2( [pid 4799] <... write resumed>) = 21 [pid 4798] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 4801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4800] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4799] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4798] exit_group(0 [pid 3617] close(3 [pid 4800] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4798] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 4801] <... prctl resumed>) = 0 [pid 4800] <... write resumed>) = 21 [pid 4798] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4801] setpgid(0, 0 [pid 4800] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4801] <... setpgid resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4802 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4798, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4801] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4801] write(3, "1000", 4) = 4 [pid 4801] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4801] memfd_create("syzkaller", 0) = 3 [pid 3615] <... openat resumed>) = 3 [pid 4801] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4801] <... ftruncate resumed>) = 0 [pid 4801] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4801] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4801] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4801] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4797] <... mount resumed>) = -1 EIO (Input/output error) [pid 4801] pipe2([5, 6], 0) = 0 [pid 4801] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4797] exit_group(0 [pid 4801] <... write resumed>) = 21 [pid 4801] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4797] <... exit_group resumed>) = ? [pid 4797] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4797, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4802 attached [pid 4799] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4799] exit_group(0 [pid 4802] <... prctl resumed>) = 0 [pid 3615] close(3 [pid 4799] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4799] +++ exited with 0 +++ [pid 4802] setpgid(0, 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4799, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3619] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4802] <... setpgid resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4803 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4802] write(3, "1000", 4) = 4 [pid 4802] close(3) = 0 [pid 4802] memfd_create("syzkaller", 0) = 3 [pid 4802] ftruncate(3, 0) = 0 [pid 4802] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 4802] <... openat resumed>) = 4 [pid 3616] close(3./strace-static-x86_64: Process 4803 attached [pid 4802] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... close resumed>) = 0 [pid 4803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4802] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4803] <... prctl resumed>) = 0 [pid 4802] mkdir("./file0", 0777 [pid 4800] <... mount resumed>) = -1 EIO (Input/output error) [pid 4800] exit_group(0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4804 [pid 4803] setpgid(0, 0 [pid 4802] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4800] <... exit_group resumed>) = ? [pid 4803] <... setpgid resumed>) = 0 [pid 4802] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4800] +++ exited with 0 +++ [pid 4803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4802] pipe2( [pid 4803] <... openat resumed>) = 3 [pid 4802] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4800, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4803] write(3, "1000", 4 [pid 4802] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4803] <... write resumed>) = 4 [pid 4802] <... write resumed>) = 21 [pid 3618] <... openat resumed>) = 3 [pid 4803] close(3 [pid 4802] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4804 attached [pid 4803] <... close resumed>) = 0 [pid 4804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4803] memfd_create("syzkaller", 0 [pid 4804] <... prctl resumed>) = 0 [pid 4803] <... memfd_create resumed>) = 3 [pid 4804] setpgid(0, 0 [pid 4803] ftruncate(3, 0 [pid 4804] <... setpgid resumed>) = 0 [pid 4803] <... ftruncate resumed>) = 0 [pid 4804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4803] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4804] <... openat resumed>) = 3 [pid 4803] <... openat resumed>) = 4 [pid 4804] write(3, "1000", 4 [pid 4803] ioctl(4, LOOP_SET_FD, 3 [pid 4804] <... write resumed>) = 4 [pid 4803] <... ioctl resumed>) = 0 [pid 4804] close(3) = 0 [pid 4804] memfd_create("syzkaller", 0) = 3 [pid 4804] ftruncate(3, 0) = 0 [pid 4804] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4804] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4803] mkdir("./file0", 0777 [pid 3619] <... ioctl resumed>) = 0 [pid 4804] mkdir("./file0", 0777 [pid 4803] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] close(3 [pid 4804] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4803] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... close resumed>) = 0 [pid 4804] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4803] pipe2( [pid 4801] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4804] pipe2([5, 6], 0) = 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4805 [pid 4804] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4804] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4803] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4801] exit_group(0 [pid 4803] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4801] <... exit_group resumed>) = ? [pid 4803] <... write resumed>) = 21 [pid 4803] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4801] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4801, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 4805 attached [pid 4805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4802] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4805] setpgid(0, 0 [pid 4802] exit_group(0 [pid 3618] close(3 [pid 4805] <... setpgid resumed>) = 0 [pid 4802] <... exit_group resumed>) = ? [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... close resumed>) = 0 [pid 4805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4802] +++ exited with 0 +++ [pid 3620] <... openat resumed>) = 3 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4805] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4802, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4805] write(3, "1000", 4 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4805] <... write resumed>) = 4 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4806 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4805] close(3./strace-static-x86_64: Process 4806 attached ) = 0 [pid 4805] memfd_create("syzkaller", 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4805] <... memfd_create resumed>) = 3 [pid 4804] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 4805] ftruncate(3, 0 [pid 4804] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4805] <... ftruncate resumed>) = 0 [pid 4804] <... exit_group resumed>) = ? [pid 4805] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4804] +++ exited with 0 +++ [pid 4805] <... openat resumed>) = 4 [pid 4805] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4804, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4805] <... ioctl resumed>) = 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4805] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3616] <... restart_syscall resumed>) = 0 [pid 4805] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4805] pipe2([5, 6], 0) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4805] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] <... openat resumed>) = 3 [pid 4805] <... write resumed>) = 21 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4805] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4806] <... prctl resumed>) = 0 [pid 4806] setpgid(0, 0) = 0 [pid 4806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4806] write(3, "1000", 4) = 4 [pid 4806] close(3) = 0 [pid 4806] memfd_create("syzkaller", 0) = 3 [pid 4806] ftruncate(3, 0) = 0 [pid 4806] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4806] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4806] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4806] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4806] pipe2([5, 6], 0) = 0 [pid 4806] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4803] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4806] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4803] exit_group(0 [pid 3620] close(3 [pid 3617] close(3 [pid 3616] close(3 [pid 4803] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4803] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4807 attached ./strace-static-x86_64: Process 4808 attached [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4803, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4807 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4808 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4809 [pid 4808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4808] <... prctl resumed>) = 0 [pid 4807] <... prctl resumed>) = 0 [pid 4808] setpgid(0, 0 [pid 4807] setpgid(0, 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4809 attached [pid 4808] <... setpgid resumed>) = 0 [pid 4807] <... setpgid resumed>) = 0 [pid 4809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... openat resumed>) = 3 [pid 4809] <... prctl resumed>) = 0 [pid 4808] <... openat resumed>) = 3 [pid 4807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4809] setpgid(0, 0 [pid 4808] write(3, "1000", 4 [pid 4807] <... openat resumed>) = 3 [pid 4809] <... setpgid resumed>) = 0 [pid 4808] <... write resumed>) = 4 [pid 4807] write(3, "1000", 4 [pid 4809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4808] close(3 [pid 4807] <... write resumed>) = 4 [pid 4809] <... openat resumed>) = 3 [pid 4808] <... close resumed>) = 0 [pid 4807] close(3 [pid 4809] write(3, "1000", 4 [pid 4808] memfd_create("syzkaller", 0 [pid 4807] <... close resumed>) = 0 [pid 4809] <... write resumed>) = 4 [pid 4808] <... memfd_create resumed>) = 3 [pid 4807] memfd_create("syzkaller", 0 [pid 4809] close(3 [pid 4808] ftruncate(3, 0 [pid 4807] <... memfd_create resumed>) = 3 [pid 4809] <... close resumed>) = 0 [pid 4808] <... ftruncate resumed>) = 0 [pid 4807] ftruncate(3, 0 [pid 4809] memfd_create("syzkaller", 0 [pid 4808] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4807] <... ftruncate resumed>) = 0 [pid 4809] <... memfd_create resumed>) = 3 [pid 4808] <... openat resumed>) = 4 [pid 4807] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4809] ftruncate(3, 0) = 0 [pid 4808] ioctl(4, LOOP_SET_FD, 3 [pid 4809] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4808] <... ioctl resumed>) = 0 [pid 4807] <... openat resumed>) = 4 [pid 4805] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4809] <... openat resumed>) = 4 [pid 4805] exit_group(0 [pid 4809] ioctl(4, LOOP_SET_FD, 3 [pid 4805] <... exit_group resumed>) = ? [pid 4809] <... ioctl resumed>) = 0 [pid 4805] +++ exited with 0 +++ [pid 4809] mkdir("./file0", 0777 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4805, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4809] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4809] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4809] pipe2([5, 6], 0) = 0 [pid 4809] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4808] mkdir("./file0", 0777 [pid 4807] ioctl(4, LOOP_SET_FD, 3 [pid 3615] close(3 [pid 4809] <... write resumed>) = 21 [pid 4808] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4807] <... ioctl resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4809] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4808] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4807] mkdir("./file0", 0777 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4808] pipe2( [pid 4807] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... openat resumed>) = 3 [pid 4808] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4808] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4807] pipe2( [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4810 [pid 4808] <... write resumed>) = 21 [pid 4807] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] close(3./strace-static-x86_64: Process 4810 attached [pid 4808] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4807] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] <... close resumed>) = 0 [pid 4810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4807] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4810] <... prctl resumed>) = 0 [pid 4807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4810] setpgid(0, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4811 [pid 4810] <... setpgid resumed>) = 0 [pid 4810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4810] write(3, "1000", 4) = 4 [pid 4810] close(3) = 0 [pid 4810] memfd_create("syzkaller", 0) = 3 [pid 4810] ftruncate(3, 0./strace-static-x86_64: Process 4811 attached ) = 0 [pid 4811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4810] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4811] <... prctl resumed>) = 0 [pid 4810] <... openat resumed>) = 4 [pid 4811] setpgid(0, 0 [pid 4810] ioctl(4, LOOP_SET_FD, 3 [pid 4811] <... setpgid resumed>) = 0 [pid 4810] <... ioctl resumed>) = 0 [pid 4806] <... mount resumed>) = -1 EIO (Input/output error) [pid 4811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4810] mkdir("./file0", 0777 [pid 4806] exit_group(0 [pid 4811] <... openat resumed>) = 3 [pid 4810] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4806] <... exit_group resumed>) = ? [pid 4811] write(3, "1000", 4 [pid 4810] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4811] <... write resumed>) = 4 [pid 4810] pipe2( [pid 4811] close(3 [pid 4810] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4811] <... close resumed>) = 0 [pid 4810] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4806] +++ exited with 0 +++ [pid 4811] memfd_create("syzkaller", 0 [pid 4810] <... write resumed>) = 21 [pid 4811] <... memfd_create resumed>) = 3 [pid 4810] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4806, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4811] ftruncate(3, 0 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4811] <... ftruncate resumed>) = 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4811] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4811] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4811] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4811] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4811] pipe2([5, 6], 0) = 0 [pid 4811] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4811] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4809] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4809] exit_group(0 [pid 3618] <... openat resumed>) = 3 [pid 4809] <... exit_group resumed>) = ? [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4809] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4809, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4808] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4808] exit_group(0) = ? [pid 4808] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4808, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4807] <... mount resumed>) = -1 EIO (Input/output error) [pid 4807] exit_group(0) = ? [pid 3618] close(3 [pid 4807] +++ exited with 0 +++ [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4807, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4812 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4812 attached [pid 4811] <... mount resumed>) = -1 EIO (Input/output error) [pid 4812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4811] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4812] <... prctl resumed>) = 0 [pid 4811] <... exit_group resumed>) = ? [pid 4810] <... mount resumed>) = -1 EIO (Input/output error) [pid 4812] setpgid(0, 0 [pid 4811] +++ exited with 0 +++ [pid 4810] exit_group(0 [pid 3617] close(3 [pid 3616] close(3 [pid 4812] <... setpgid resumed>) = 0 [pid 4812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4810] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4811, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4810] +++ exited with 0 +++ [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4810, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3619] <... openat resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4814 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4813 [pid 4812] write(3, "1000", 4./strace-static-x86_64: Process 4813 attached [pid 3620] <... ioctl resumed>) = 0 [pid 4812] <... write resumed>) = 4 ./strace-static-x86_64: Process 4814 attached [pid 4814] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4814] setpgid(0, 0) = 0 [pid 4814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4814] write(3, "1000", 4) = 4 [pid 3620] close(3 [pid 4812] close(3 [pid 3620] <... close resumed>) = 0 [pid 4814] close(3 [pid 4812] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4814] <... close resumed>) = 0 [pid 4812] memfd_create("syzkaller", 0 [pid 4814] memfd_create("syzkaller", 0 [pid 4812] <... memfd_create resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4815 [pid 4812] ftruncate(3, 0) = 0 [pid 4812] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4812] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4814] <... memfd_create resumed>) = 3 [pid 4812] mkdir("./file0", 0777 [pid 4814] ftruncate(3, 0 [pid 4812] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4814] <... ftruncate resumed>) = 0 [pid 4812] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4812] pipe2( [pid 4814] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4812] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4814] <... openat resumed>) = 4 [pid 4812] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4814] ioctl(4, LOOP_SET_FD, 3 [pid 4812] <... write resumed>) = 21 [pid 4814] <... ioctl resumed>) = 0 [pid 4813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4812] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4814] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4814] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4814] pipe2([5, 6], 0) = 0 [pid 4814] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4814] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4813] <... prctl resumed>) = 0 [pid 4813] setpgid(0, 0) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3615] close(3 [pid 3619] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4816 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4817 [pid 4813] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4815 attached [pid 4813] write(3, "1000", 4) = 4 [pid 4813] close(3 [pid 4815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4813] <... close resumed>) = 0 ./strace-static-x86_64: Process 4816 attached [pid 4813] memfd_create("syzkaller", 0 [pid 4815] <... prctl resumed>) = 0 [pid 4813] <... memfd_create resumed>) = 3 [pid 4815] setpgid(0, 0) = 0 [pid 4813] ftruncate(3, 0) = 0 [pid 4816] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4813] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4816] <... prctl resumed>) = 0 [pid 4816] setpgid(0, 0 [pid 4813] <... openat resumed>) = 4 [pid 4816] <... setpgid resumed>) = 0 [pid 4815] <... openat resumed>) = 3 [pid 4813] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4817 attached [pid 4816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4815] write(3, "1000", 4 [pid 4813] <... ioctl resumed>) = 0 [pid 4816] <... openat resumed>) = 3 [pid 4817] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4815] <... write resumed>) = 4 [pid 4813] mkdir("./file0", 0777 [pid 4812] <... mount resumed>) = -1 EIO (Input/output error) [pid 4816] write(3, "1000", 4 [pid 4817] <... prctl resumed>) = 0 [pid 4816] <... write resumed>) = 4 [pid 4817] setpgid(0, 0 [pid 4815] close(3 [pid 4813] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4812] exit_group(0 [pid 4816] close(3 [pid 4817] <... setpgid resumed>) = 0 [pid 4816] <... close resumed>) = 0 [pid 4817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4815] <... close resumed>) = 0 [pid 4813] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4812] <... exit_group resumed>) = ? [pid 4816] memfd_create("syzkaller", 0 [pid 4817] <... openat resumed>) = 3 [pid 4814] <... mount resumed>) = -1 EIO (Input/output error) [pid 4816] <... memfd_create resumed>) = 3 [pid 4817] write(3, "1000", 4 [pid 4815] memfd_create("syzkaller", 0 [pid 4814] exit_group(0 [pid 4813] pipe2( [pid 4816] ftruncate(3, 0 [pid 4817] <... write resumed>) = 4 [pid 4816] <... ftruncate resumed>) = 0 [pid 4817] close(3 [pid 4814] <... exit_group resumed>) = ? [pid 4816] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4817] <... close resumed>) = 0 [pid 4815] <... memfd_create resumed>) = 3 [pid 4814] +++ exited with 0 +++ [pid 4813] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4812] +++ exited with 0 +++ [pid 4816] <... openat resumed>) = 4 [pid 4817] memfd_create("syzkaller", 0 [pid 4816] ioctl(4, LOOP_SET_FD, 3 [pid 4817] <... memfd_create resumed>) = 3 [pid 4816] <... ioctl resumed>) = 0 [pid 4817] ftruncate(3, 0 [pid 4815] ftruncate(3, 0 [pid 4813] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4814, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4816] mkdir("./file0", 0777 [pid 4817] <... ftruncate resumed>) = 0 [pid 4816] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4817] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4817] <... openat resumed>) = 4 [pid 4816] pipe2( [pid 4817] ioctl(4, LOOP_SET_FD, 3 [pid 4816] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4817] <... ioctl resumed>) = 0 [pid 4815] <... ftruncate resumed>) = 0 [pid 4813] <... write resumed>) = 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4812, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4816] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4817] mkdir("./file0", 0777 [pid 4815] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4813] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4816] <... write resumed>) = 21 [pid 4817] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4817] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4815] <... openat resumed>) = 4 [pid 3618] <... restart_syscall resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4817] pipe2([5, 6], 0) = 0 [pid 4817] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4817] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... openat resumed>) = 3 [pid 4815] ioctl(4, LOOP_SET_FD, 3 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4815] <... ioctl resumed>) = 0 [pid 3618] <... openat resumed>) = 3 [pid 4815] mkdir("./file0", 0777 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4815] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4815] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4815] pipe2([5, 6], 0) = 0 [pid 4815] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4815] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4813] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 4813] exit_group(0 [pid 3618] close(3 [pid 3617] close(3 [pid 4813] <... exit_group resumed>) = ? [pid 3618] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4813] +++ exited with 0 +++ [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4818 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4819 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4813, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4818 attached [pid 4818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4818] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4819 attached [pid 4818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4818] write(3, "1000", 4) = 4 [pid 4818] close(3) = 0 [pid 4818] memfd_create("syzkaller", 0) = 3 [pid 4818] ftruncate(3, 0) = 0 [pid 4815] <... mount resumed>) = -1 EIO (Input/output error) [pid 4818] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4815] exit_group(0 [pid 4819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4818] <... openat resumed>) = 4 [pid 4815] <... exit_group resumed>) = ? [pid 4818] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4819] <... prctl resumed>) = 0 [pid 4818] mkdir("./file0", 0777 [pid 4815] +++ exited with 0 +++ [pid 4818] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4815, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4818] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4819] setpgid(0, 0 [pid 4818] pipe2( [pid 3620] <... restart_syscall resumed>) = 0 [pid 4819] <... setpgid resumed>) = 0 [pid 4818] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4818] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4818] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 4819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4817] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4819] <... openat resumed>) = 3 [pid 4817] exit_group(0 [pid 4819] write(3, "1000", 4 [pid 4817] <... exit_group resumed>) = ? [pid 4819] <... write resumed>) = 4 [pid 4819] close(3) = 0 [pid 4817] +++ exited with 0 +++ [pid 4819] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4817, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4819] <... memfd_create resumed>) = 3 [pid 4819] ftruncate(3, 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 4819] <... ftruncate resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 4819] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 4819] ioctl(4, LOOP_SET_FD, 3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4819] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 4819] mkdir("./file0", 0777 [pid 3616] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4819] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4816] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... close resumed>) = 0 [pid 4819] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4816] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4819] pipe2( [pid 4816] <... exit_group resumed>) = ? [pid 4819] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4820 [pid 4819] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4816] +++ exited with 0 +++ [pid 4819] <... write resumed>) = 21 [pid 3620] <... ioctl resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4816, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4820 attached [pid 4819] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] close(3 [pid 4820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... close resumed>) = 0 [pid 4820] <... prctl resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4820] setpgid(0, 0 [pid 3619] <... openat resumed>) = 3 [pid 4820] <... setpgid resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4821 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4821 attached [pid 4820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4818] <... mount resumed>) = -1 EIO (Input/output error) [pid 4818] exit_group(0) = ? [pid 4818] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4818, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3618] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4820] write(3, "1000", 4 [pid 4821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4820] <... write resumed>) = 4 [pid 4821] <... prctl resumed>) = 0 [pid 4820] close(3 [pid 4821] setpgid(0, 0 [pid 4820] <... close resumed>) = 0 [pid 4821] <... setpgid resumed>) = 0 [pid 4820] memfd_create("syzkaller", 0 [pid 4821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4820] <... memfd_create resumed>) = 3 [pid 4821] <... openat resumed>) = 3 [pid 4820] ftruncate(3, 0 [pid 4821] write(3, "1000", 4 [pid 4820] <... ftruncate resumed>) = 0 [pid 4821] <... write resumed>) = 4 [pid 4820] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4819] <... mount resumed>) = -1 EIO (Input/output error) [pid 4821] close(3 [pid 4820] <... openat resumed>) = 4 [pid 4819] exit_group(0 [pid 4821] <... close resumed>) = 0 [pid 4820] ioctl(4, LOOP_SET_FD, 3 [pid 4819] <... exit_group resumed>) = ? [pid 4821] memfd_create("syzkaller", 0 [pid 4820] <... ioctl resumed>) = 0 [pid 4819] +++ exited with 0 +++ [pid 4821] <... memfd_create resumed>) = 3 [pid 4820] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4819, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4821] ftruncate(3, 0 [pid 4820] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4821] <... ftruncate resumed>) = 0 [pid 4820] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4821] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4820] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4821] <... openat resumed>) = 4 [pid 4820] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 4821] ioctl(4, LOOP_SET_FD, 3 [pid 4820] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4821] <... ioctl resumed>) = 0 [pid 4820] <... write resumed>) = 21 [pid 4821] mkdir("./file0", 0777 [pid 4820] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4821] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4821] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4821] pipe2([5, 6], 0) = 0 [pid 4821] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4821] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4822 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4823 ./strace-static-x86_64: Process 4823 attached [pid 4823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4823] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 4822 attached [pid 4823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 4823] <... openat resumed>) = 3 [pid 4822] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4820] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] close(3 [pid 4823] write(3, "1000", 4 [pid 4822] <... prctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 4823] <... write resumed>) = 4 [pid 4822] setpgid(0, 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4823] close(3 [pid 4822] <... setpgid resumed>) = 0 [pid 4823] <... close resumed>) = 0 [pid 4822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4820] exit_group(0 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4824 [pid 3615] close(3 [pid 4823] memfd_create("syzkaller", 0 [pid 4822] <... openat resumed>) = 3 [pid 4820] <... exit_group resumed>) = ? [pid 3615] <... close resumed>) = 0 [pid 4823] <... memfd_create resumed>) = 3 [pid 4822] write(3, "1000", 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4824 attached [pid 4823] ftruncate(3, 0 [pid 4822] <... write resumed>) = 4 [pid 4821] <... mount resumed>) = -1 EIO (Input/output error) [pid 4820] +++ exited with 0 +++ [pid 4824] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4823] <... ftruncate resumed>) = 0 [pid 4822] close(3 [pid 4821] exit_group(0 [pid 4824] <... prctl resumed>) = 0 [pid 4823] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4822] <... close resumed>) = 0 [pid 4821] <... exit_group resumed>) = ? [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4820, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4825 [pid 4824] setpgid(0, 0 [pid 4823] <... openat resumed>) = 4 [pid 4822] memfd_create("syzkaller", 0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 4825 attached [pid 4824] <... setpgid resumed>) = 0 [pid 4823] ioctl(4, LOOP_SET_FD, 3 [pid 4822] <... memfd_create resumed>) = 3 [pid 4821] +++ exited with 0 +++ [pid 3616] <... openat resumed>) = 3 [pid 4825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4823] <... ioctl resumed>) = 0 [pid 4822] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4825] <... prctl resumed>) = 0 [pid 4824] <... openat resumed>) = 3 [pid 4823] mkdir("./file0", 0777 [pid 4822] <... ftruncate resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4821, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4825] setpgid(0, 0 [pid 4824] write(3, "1000", 4 [pid 4823] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4822] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4825] <... setpgid resumed>) = 0 [pid 4824] <... write resumed>) = 4 [pid 4823] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4822] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 4825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4824] close(3 [pid 4823] pipe2( [pid 4822] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4825] <... openat resumed>) = 3 [pid 4824] <... close resumed>) = 0 [pid 4823] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4822] <... ioctl resumed>) = 0 [pid 4825] write(3, "1000", 4 [pid 4824] memfd_create("syzkaller", 0 [pid 4823] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4822] mkdir("./file0", 0777 [pid 4825] <... write resumed>) = 4 [pid 4824] <... memfd_create resumed>) = 3 [pid 4823] <... write resumed>) = 21 [pid 4822] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4825] close(3 [pid 4824] ftruncate(3, 0 [pid 4823] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4822] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4825] <... close resumed>) = 0 [pid 4824] <... ftruncate resumed>) = 0 [pid 4822] pipe2( [pid 3616] <... ioctl resumed>) = 0 [pid 4825] memfd_create("syzkaller", 0 [pid 4824] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4822] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] close(3 [pid 4825] <... memfd_create resumed>) = 3 [pid 4824] <... openat resumed>) = 4 [pid 4822] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4825] ftruncate(3, 0 [pid 4824] ioctl(4, LOOP_SET_FD, 3 [pid 4822] <... write resumed>) = 21 [pid 3620] close(3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4825] <... ftruncate resumed>) = 0 [pid 4824] <... ioctl resumed>) = 0 [pid 4822] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4826 [pid 4825] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4824] mkdir("./file0", 0777 [pid 4825] <... openat resumed>) = 4 [pid 4825] ioctl(4, LOOP_SET_FD, 3 [pid 4824] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4827 [pid 4825] <... ioctl resumed>) = 0 [pid 4824] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4825] mkdir("./file0", 0777 [pid 4824] pipe2(./strace-static-x86_64: Process 4827 attached [pid 4825] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4824] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 4826 attached [pid 4827] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4824] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4827] <... prctl resumed>) = 0 [pid 4826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4825] pipe2( [pid 4824] <... write resumed>) = 21 [pid 4827] setpgid(0, 0 [pid 4826] <... prctl resumed>) = 0 [pid 4825] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4824] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4827] <... setpgid resumed>) = 0 [pid 4826] setpgid(0, 0 [pid 4825] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4823] <... mount resumed>) = -1 EIO (Input/output error) [pid 4827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4826] <... setpgid resumed>) = 0 [pid 4825] <... write resumed>) = 21 [pid 4823] exit_group(0 [pid 4827] <... openat resumed>) = 3 [pid 4823] <... exit_group resumed>) = ? [pid 4827] write(3, "1000", 4 [pid 4826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4825] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4823] +++ exited with 0 +++ [pid 4827] <... write resumed>) = 4 [pid 4826] <... openat resumed>) = 3 [pid 4822] <... mount resumed>) = -1 EIO (Input/output error) [pid 4827] close(3 [pid 4822] exit_group(0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4823, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4827] <... close resumed>) = 0 [pid 4822] <... exit_group resumed>) = ? [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4827] memfd_create("syzkaller", 0 [pid 4822] +++ exited with 0 +++ [pid 3618] <... restart_syscall resumed>) = 0 [pid 4827] <... memfd_create resumed>) = 3 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4822, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4827] ftruncate(3, 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4827] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 4827] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4827] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4827] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4827] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... openat resumed>) = 3 [pid 4827] pipe2( [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4827] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4827] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4827] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4826] write(3, "1000", 4) = 4 [pid 4826] close(3) = 0 [pid 4826] memfd_create("syzkaller", 0) = 3 [pid 4826] ftruncate(3, 0) = 0 [pid 4826] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4826] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4826] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4826] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4824] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4826] pipe2( [pid 4824] exit_group(0 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4826] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4824] <... exit_group resumed>) = ? [pid 3619] close(3 [pid 3618] <... close resumed>) = 0 [pid 4826] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4824] +++ exited with 0 +++ [pid 3619] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4826] <... write resumed>) = 21 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4824, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4826] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4828 [pid 3617] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 4828 attached [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4829 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4827] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... openat resumed>) = 3 [pid 4827] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4827] <... exit_group resumed>) = ? [pid 4827] +++ exited with 0 +++ ./strace-static-x86_64: Process 4829 attached [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4827, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4829] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4829] <... prctl resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4829] setpgid(0, 0) = 0 [pid 4829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4829] <... openat resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 4829] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4829] <... write resumed>) = 4 [pid 4829] close(3) = 0 [pid 4829] memfd_create("syzkaller", 0) = 3 [pid 4829] ftruncate(3, 0) = 0 [pid 4829] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 4829] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4829] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4829] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4829] pipe2([5, 6], 0) = 0 [pid 4829] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4829] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4828] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4828] setpgid(0, 0) = 0 [pid 4828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4828] write(3, "1000", 4) = 4 [pid 4828] close(3) = 0 [pid 4828] memfd_create("syzkaller", 0) = 3 [pid 4828] ftruncate(3, 0) = 0 [pid 4828] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4828] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4828] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4828] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4828] pipe2( [pid 4825] <... mount resumed>) = -1 EIO (Input/output error) [pid 4828] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4825] exit_group(0 [pid 3617] <... ioctl resumed>) = 0 [pid 4826] <... mount resumed>) = -1 EIO (Input/output error) [pid 4828] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4825] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4828] <... write resumed>) = 21 [pid 4825] +++ exited with 0 +++ [pid 3620] close(3 [pid 3617] <... close resumed>) = 0 [pid 4828] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4826] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4825, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4830 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4831 [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4830 attached [pid 4830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4826] <... exit_group resumed>) = ? [pid 4826] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4826, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4830] setpgid(0, 0 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4830] <... setpgid resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 4831 attached [pid 4830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4830] <... openat resumed>) = 3 [pid 4830] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4831] <... prctl resumed>) = 0 [pid 4830] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 4831] setpgid(0, 0 [pid 4830] close(3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4831] <... setpgid resumed>) = 0 [pid 4830] <... close resumed>) = 0 [pid 4831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4830] memfd_create("syzkaller", 0 [pid 4831] <... openat resumed>) = 3 [pid 4830] <... memfd_create resumed>) = 3 [pid 4831] write(3, "1000", 4 [pid 4830] ftruncate(3, 0 [pid 4831] <... write resumed>) = 4 [pid 4830] <... ftruncate resumed>) = 0 [pid 4831] close(3 [pid 4830] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4831] <... close resumed>) = 0 [pid 4830] <... openat resumed>) = 4 [pid 4831] memfd_create("syzkaller", 0 [pid 4830] ioctl(4, LOOP_SET_FD, 3 [pid 4831] <... memfd_create resumed>) = 3 [pid 4830] <... ioctl resumed>) = 0 [pid 4831] ftruncate(3, 0 [pid 4830] mkdir("./file0", 0777 [pid 4831] <... ftruncate resumed>) = 0 [pid 4830] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4831] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4830] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4831] <... openat resumed>) = 4 [pid 4830] pipe2( [pid 4831] ioctl(4, LOOP_SET_FD, 3 [pid 4830] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4829] <... mount resumed>) = -1 EIO (Input/output error) [pid 4831] <... ioctl resumed>) = 0 [pid 4830] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4829] exit_group(0 [pid 4830] <... write resumed>) = 21 [pid 4829] <... exit_group resumed>) = ? [pid 4830] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4829] +++ exited with 0 +++ [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4829, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4832 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4832 attached [pid 4832] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4832] setpgid(0, 0) = 0 [pid 4832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4831] mkdir("./file0", 0777 [pid 4832] <... openat resumed>) = 3 [pid 4831] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4831] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4831] pipe2([5, 6], 0) = 0 [pid 4831] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4832] write(3, "1000", 4 [pid 4831] <... write resumed>) = 21 [pid 4832] <... write resumed>) = 4 [pid 4831] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4832] close(3) = 0 [pid 4832] memfd_create("syzkaller", 0) = 3 [pid 4832] ftruncate(3, 0) = 0 [pid 4832] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4832] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4832] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4832] pipe2([5, 6], 0) = 0 [pid 4832] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4828] <... mount resumed>) = -1 EIO (Input/output error) [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 4832] <... write resumed>) = 21 [pid 3619] close(3 [pid 3616] close(3 [pid 4832] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4828] exit_group(0 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 4828] <... exit_group resumed>) = ? [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4833 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4834 [pid 4828] +++ exited with 0 +++ [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4828, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4833 attached [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 ./strace-static-x86_64: Process 4834 attached [pid 4833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4833] <... prctl resumed>) = 0 [pid 4833] setpgid(0, 0 [pid 4834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4833] <... setpgid resumed>) = 0 [pid 4834] <... prctl resumed>) = 0 [pid 4833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4834] setpgid(0, 0 [pid 4833] <... openat resumed>) = 3 [pid 4833] write(3, "1000", 4 [pid 4834] <... setpgid resumed>) = 0 [pid 4833] <... write resumed>) = 4 [pid 4834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4833] close(3 [pid 4830] <... mount resumed>) = -1 EIO (Input/output error) [pid 4833] <... close resumed>) = 0 [pid 4830] exit_group(0 [pid 4833] memfd_create("syzkaller", 0 [pid 4830] <... exit_group resumed>) = ? [pid 4833] <... memfd_create resumed>) = 3 [pid 4830] +++ exited with 0 +++ [pid 4833] ftruncate(3, 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4830, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4833] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4833] <... openat resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 4833] ioctl(4, LOOP_SET_FD, 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4833] <... ioctl resumed>) = 0 [pid 4833] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4833] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4833] pipe2([5, 6], 0) = 0 [pid 4833] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4833] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4834] <... openat resumed>) = 3 [pid 4834] write(3, "1000", 4) = 4 [pid 4834] close(3) = 0 [pid 4834] memfd_create("syzkaller", 0) = 3 [pid 4834] ftruncate(3, 0) = 0 [pid 4834] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4834] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4834] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4834] pipe2( [pid 3618] <... close resumed>) = 0 [pid 4834] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4834] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4835 [pid 4834] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4831] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 4831] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 4831] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4835 attached [pid 4835] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4831] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4836 [pid 4835] <... prctl resumed>) = 0 [pid 4835] setpgid(0, 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4831, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4835] <... setpgid resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 4836 attached [pid 4835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] <... openat resumed>) = 3 [pid 4836] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4835] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4836] <... prctl resumed>) = 0 [pid 4835] write(3, "1000", 4 [pid 4836] setpgid(0, 0 [pid 4835] <... write resumed>) = 4 [pid 4836] <... setpgid resumed>) = 0 [pid 4835] close(3) = 0 [pid 4836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4835] memfd_create("syzkaller", 0) = 3 [pid 4836] <... openat resumed>) = 3 [pid 4835] ftruncate(3, 0 [pid 4836] write(3, "1000", 4 [pid 4835] <... ftruncate resumed>) = 0 [pid 4835] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4836] <... write resumed>) = 4 [pid 4835] <... openat resumed>) = 4 [pid 4835] ioctl(4, LOOP_SET_FD, 3 [pid 4836] close(3 [pid 4835] <... ioctl resumed>) = 0 [pid 4836] <... close resumed>) = 0 [pid 4835] mkdir("./file0", 0777 [pid 4836] memfd_create("syzkaller", 0 [pid 4835] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4836] <... memfd_create resumed>) = 3 [pid 4835] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4836] ftruncate(3, 0 [pid 4835] pipe2( [pid 4836] <... ftruncate resumed>) = 0 [pid 4835] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4835] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4836] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4835] <... write resumed>) = 21 [pid 4836] <... openat resumed>) = 4 [pid 4835] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4836] ioctl(4, LOOP_SET_FD, 3 [pid 4832] <... mount resumed>) = -1 EIO (Input/output error) [pid 4832] exit_group(0) = ? [pid 4832] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4832, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4836] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 4836] mkdir("./file0", 0777 [pid 3620] close(3 [pid 4836] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 4836] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4836] pipe2([5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4837 [pid 4836] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4836] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4837 attached [pid 4837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4837] setpgid(0, 0) = 0 [pid 4837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4837] write(3, "1000", 4) = 4 [pid 4837] close(3) = 0 [pid 4837] memfd_create("syzkaller", 0 [pid 4834] <... mount resumed>) = -1 EIO (Input/output error) [pid 3615] <... ioctl resumed>) = 0 [pid 4837] <... memfd_create resumed>) = 3 [pid 3615] close(3 [pid 4837] ftruncate(3, 0 [pid 4834] exit_group(0 [pid 3615] <... close resumed>) = 0 [pid 4837] <... ftruncate resumed>) = 0 [pid 4834] <... exit_group resumed>) = ? [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4837] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4834] +++ exited with 0 +++ [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4838 [pid 4837] ioctl(4, LOOP_SET_FD, 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4834, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4837] <... ioctl resumed>) = 0 [pid 4837] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4837] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4837] pipe2([5, 6], 0) = 0 [pid 4833] <... mount resumed>) = -1 EIO (Input/output error) ./strace-static-x86_64: Process 4838 attached [pid 4837] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4833] exit_group(0 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4837] <... write resumed>) = 21 [pid 4833] <... exit_group resumed>) = ? [pid 3616] <... openat resumed>) = 3 [pid 4838] <... prctl resumed>) = 0 [pid 4837] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4833] +++ exited with 0 +++ [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4838] setpgid(0, 0) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4833, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4838] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 4838] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4838] <... write resumed>) = 4 [pid 4838] close(3) = 0 [pid 4838] memfd_create("syzkaller", 0) = 3 [pid 4838] ftruncate(3, 0) = 0 [pid 4838] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4838] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4835] <... mount resumed>) = -1 EIO (Input/output error) [pid 4838] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4835] exit_group(0 [pid 4838] pipe2( [pid 4835] <... exit_group resumed>) = ? [pid 4838] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4835] +++ exited with 0 +++ [pid 4838] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4835, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 4838] <... write resumed>) = 21 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4838] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... restart_syscall resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 3619] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] close(3 [pid 3616] close(3 [pid 3619] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4839 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4840 ./strace-static-x86_64: Process 4840 attached [pid 4840] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4839 attached [pid 4836] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 4839] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] close(3 [pid 4839] <... prctl resumed>) = 0 [pid 4836] exit_group(0 [pid 3618] <... close resumed>) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4836] <... exit_group resumed>) = ? [pid 4839] setpgid(0, 0 [pid 4840] <... prctl resumed>) = 0 [pid 4840] setpgid(0, 0 [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4841 [pid 4840] <... setpgid resumed>) = 0 [pid 4840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4839] <... setpgid resumed>) = 0 [pid 4836] +++ exited with 0 +++ [pid 4840] <... openat resumed>) = 3 [pid 4839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4836, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4840] write(3, "1000", 4 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 4840] <... write resumed>) = 4 [pid 3617] <... restart_syscall resumed>) = 0 [pid 4840] close(3 [pid 4839] <... openat resumed>) = 3 [pid 4840] <... close resumed>) = 0 [pid 4839] write(3, "1000", 4 [pid 4840] memfd_create("syzkaller", 0 [pid 4839] <... write resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4840] <... memfd_create resumed>) = 3 [pid 4839] close(3 [pid 3617] <... openat resumed>) = 3 ./strace-static-x86_64: Process 4841 attached [pid 4840] ftruncate(3, 0 [pid 4839] <... close resumed>) = 0 [pid 4837] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4840] <... ftruncate resumed>) = 0 [pid 4839] memfd_create("syzkaller", 0 [pid 4837] exit_group(0 [pid 4840] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4837] <... exit_group resumed>) = ? [pid 4841] <... prctl resumed>) = 0 [pid 4840] <... openat resumed>) = 4 [pid 4839] <... memfd_create resumed>) = 3 [pid 4837] +++ exited with 0 +++ [pid 4841] setpgid(0, 0 [pid 4840] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4837, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4839] ftruncate(3, 0 [pid 4841] <... setpgid resumed>) = 0 [pid 4840] <... ioctl resumed>) = 0 [pid 4838] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4840] mkdir("./file0", 0777 [pid 4839] <... ftruncate resumed>) = 0 [pid 4838] exit_group(0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4840] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4838] <... exit_group resumed>) = ? [pid 4841] <... openat resumed>) = 3 [pid 4840] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4839] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4838] +++ exited with 0 +++ [pid 4841] write(3, "1000", 4 [pid 4840] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4838, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4839] <... openat resumed>) = 4 [pid 4841] <... write resumed>) = 4 [pid 4840] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4839] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... openat resumed>) = 3 [pid 4841] close(3 [pid 4840] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4839] <... ioctl resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4841] <... close resumed>) = 0 [pid 4840] <... write resumed>) = 21 [pid 4839] mkdir("./file0", 0777 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4841] memfd_create("syzkaller", 0 [pid 4840] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4839] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 4841] <... memfd_create resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4839] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4841] ftruncate(3, 0) = 0 [pid 4839] pipe2([5, 6], 0) = 0 [pid 4841] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4839] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4841] ioctl(4, LOOP_SET_FD, 3 [pid 4839] <... write resumed>) = 21 [pid 4841] <... ioctl resumed>) = 0 [pid 4839] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4841] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4840] <... mount resumed>) = -1 EIO (Input/output error) [pid 4840] exit_group(0) = ? [pid 4841] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4841] pipe2([5, 6], 0) = 0 [pid 4841] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4841] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4840] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4840, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] close(3 [pid 3617] close(3 [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4842 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4843 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4842 attached [pid 4842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4842] setpgid(0, 0) = 0 [pid 4842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4842] write(3, "1000", 4) = 4 [pid 4842] close(3) = 0 [pid 4842] memfd_create("syzkaller", 0) = 3 [pid 4842] ftruncate(3, 0) = 0 [pid 4842] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 4842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4842] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4842] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4842] pipe2([5, 6], 0) = 0 [pid 4842] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4842] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4843 attached [pid 4839] <... mount resumed>) = -1 EIO (Input/output error) [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3615] close(3 [pid 4843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4839] exit_group(0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 4843] <... prctl resumed>) = 0 [pid 4839] <... exit_group resumed>) = ? [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4843] setpgid(0, 0 [pid 4839] +++ exited with 0 +++ [pid 4843] <... setpgid resumed>) = 0 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4839, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4844 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4845 [pid 4843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 4843] write(3, "1000", 4 [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4843] <... write resumed>) = 4 [pid 4843] close(3./strace-static-x86_64: Process 4844 attached ) = 0 [pid 4844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4843] memfd_create("syzkaller", 0 [pid 4844] <... prctl resumed>) = 0 [pid 4843] <... memfd_create resumed>) = 3 [pid 4844] setpgid(0, 0 [pid 4843] ftruncate(3, 0 [pid 4844] <... setpgid resumed>) = 0 [pid 4843] <... ftruncate resumed>) = 0 [pid 4844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4843] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 4845 attached [pid 4844] <... openat resumed>) = 3 [pid 4843] <... openat resumed>) = 4 [pid 4844] write(3, "1000", 4 [pid 4843] ioctl(4, LOOP_SET_FD, 3 [pid 4845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4844] <... write resumed>) = 4 [pid 4843] <... ioctl resumed>) = 0 [pid 4844] close(3 [pid 4843] mkdir("./file0", 0777 [pid 4845] <... prctl resumed>) = 0 [pid 4844] <... close resumed>) = 0 [pid 4843] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4845] setpgid(0, 0 [pid 4844] memfd_create("syzkaller", 0 [pid 4843] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4845] <... setpgid resumed>) = 0 [pid 4844] <... memfd_create resumed>) = 3 [pid 4843] pipe2( [pid 4842] <... mount resumed>) = -1 EIO (Input/output error) [pid 4844] ftruncate(3, 0 [pid 4842] exit_group(0 [pid 4844] <... ftruncate resumed>) = 0 [pid 4842] <... exit_group resumed>) = ? [pid 4844] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4842] +++ exited with 0 +++ [pid 4844] <... openat resumed>) = 4 [pid 4844] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4842, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4844] <... ioctl resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 4844] mkdir("./file0", 0777 [pid 3620] <... restart_syscall resumed>) = 0 [pid 4844] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4844] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4844] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4844] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... openat resumed>) = 3 [pid 4844] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4844] <... write resumed>) = 21 [pid 4844] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4843] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4843] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4843] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4845] <... openat resumed>) = 3 [pid 4845] write(3, "1000", 4) = 4 [pid 3619] <... ioctl resumed>) = 0 [pid 4845] close(3 [pid 3619] close(3 [pid 4845] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 4845] memfd_create("syzkaller", 0 [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4845] <... memfd_create resumed>) = 3 [pid 4845] ftruncate(3, 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4846 [pid 4845] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 4846 attached [pid 4845] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4845] <... openat resumed>) = 4 [pid 4846] <... prctl resumed>) = 0 [pid 4845] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... ioctl resumed>) = 0 [pid 4846] setpgid(0, 0 [pid 4845] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 4846] <... setpgid resumed>) = 0 [pid 4845] mkdir("./file0", 0777 [pid 3620] <... close resumed>) = 0 [pid 4846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4845] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4846] <... openat resumed>) = 3 [pid 4845] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4846] write(3, "1000", 4 [pid 4845] pipe2( [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4847 ./strace-static-x86_64: Process 4847 attached [pid 4846] <... write resumed>) = 4 [pid 4845] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4847] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4846] close(3 [pid 4845] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4847] <... prctl resumed>) = 0 [pid 4846] <... close resumed>) = 0 [pid 4845] <... write resumed>) = 21 [pid 4847] setpgid(0, 0 [pid 4846] memfd_create("syzkaller", 0 [pid 4845] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4847] <... setpgid resumed>) = 0 [pid 4846] <... memfd_create resumed>) = 3 [pid 4847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4846] ftruncate(3, 0 [pid 4847] <... openat resumed>) = 3 [pid 4846] <... ftruncate resumed>) = 0 [pid 4847] write(3, "1000", 4 [pid 4846] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4847] <... write resumed>) = 4 [pid 4846] <... openat resumed>) = 4 [pid 4847] close(3 [pid 4846] ioctl(4, LOOP_SET_FD, 3 [pid 4847] <... close resumed>) = 0 [pid 4846] <... ioctl resumed>) = 0 [pid 4841] <... mount resumed>) = -1 EIO (Input/output error) [pid 4847] memfd_create("syzkaller", 0 [pid 4846] mkdir("./file0", 0777 [pid 4841] exit_group(0 [pid 4847] <... memfd_create resumed>) = 3 [pid 4846] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4841] <... exit_group resumed>) = ? [pid 4847] ftruncate(3, 0 [pid 4846] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4841] +++ exited with 0 +++ [pid 4847] <... ftruncate resumed>) = 0 [pid 4846] pipe2( [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4841, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4847] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4846] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4847] <... openat resumed>) = 4 [pid 4846] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4847] ioctl(4, LOOP_SET_FD, 3 [pid 4846] <... write resumed>) = 21 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4847] <... ioctl resumed>) = 0 [pid 4846] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... openat resumed>) = 3 [pid 4847] mkdir("./file0", 0777 [pid 4844] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4844] exit_group(0) = ? [pid 4847] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4844] +++ exited with 0 +++ [pid 4847] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4844, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4847] pipe2( [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4847] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 4847] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4847] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4848 ./strace-static-x86_64: Process 4848 attached [pid 4845] <... mount resumed>) = -1 EIO (Input/output error) [pid 4845] exit_group(0) = ? [pid 4845] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4845, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4849 ./strace-static-x86_64: Process 4849 attached [pid 4848] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4849] setpgid(0, 0) = 0 [pid 4849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4849] write(3, "1000", 4) = 4 [pid 4848] <... prctl resumed>) = 0 [pid 4849] close(3) = 0 [pid 4849] memfd_create("syzkaller", 0) = 3 [pid 4849] ftruncate(3, 0) = 0 [pid 4849] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 4849] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4849] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4848] setpgid(0, 0 [pid 4843] <... mount resumed>) = -1 EIO (Input/output error) [pid 4849] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... ioctl resumed>) = 0 [pid 4849] pipe2( [pid 3615] close(3 [pid 4849] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... close resumed>) = 0 [pid 4849] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4849] <... write resumed>) = 21 [pid 4849] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4848] <... setpgid resumed>) = 0 [pid 4847] <... mount resumed>) = -1 EIO (Input/output error) [pid 4846] <... mount resumed>) = -1 EIO (Input/output error) [pid 4843] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4850 [pid 4848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4847] exit_group(0 [pid 4846] exit_group(0 [pid 4843] <... exit_group resumed>) = ? [pid 4848] <... openat resumed>) = 3 [pid 4847] <... exit_group resumed>) = ? [pid 4846] <... exit_group resumed>) = ? [pid 4848] write(3, "1000", 4 [pid 4843] +++ exited with 0 +++ [pid 4847] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4843, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4848] <... write resumed>) = 4 [pid 4846] +++ exited with 0 +++ [pid 4848] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4847, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4846, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 4850 attached [pid 4848] <... close resumed>) = 0 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4850] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4848] memfd_create("syzkaller", 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3619] <... restart_syscall resumed>) = 0 [pid 4850] <... prctl resumed>) = 0 [pid 4848] <... memfd_create resumed>) = 3 [pid 4850] setpgid(0, 0 [pid 4848] ftruncate(3, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4850] <... setpgid resumed>) = 0 [pid 4848] <... ftruncate resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3617] <... openat resumed>) = 3 [pid 4850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4849] <... mount resumed>) = -1 EIO (Input/output error) [pid 4848] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3619] <... openat resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4850] <... openat resumed>) = 3 [pid 4849] exit_group(0 [pid 4848] <... openat resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] ioctl(3, LOOP_CLR_FD [pid 4850] write(3, "1000", 4 [pid 4849] <... exit_group resumed>) = ? [pid 4848] ioctl(4, LOOP_SET_FD, 3 [pid 4850] <... write resumed>) = 4 [pid 4849] +++ exited with 0 +++ [pid 4848] <... ioctl resumed>) = 0 [pid 4850] close(3 [pid 4848] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4849, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4850] <... close resumed>) = 0 [pid 4848] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 4850] memfd_create("syzkaller", 0 [pid 4848] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... restart_syscall resumed>) = 0 [pid 4850] <... memfd_create resumed>) = 3 [pid 4848] pipe2( [pid 4850] ftruncate(3, 0 [pid 4848] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4850] <... ftruncate resumed>) = 0 [pid 4848] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4850] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 4848] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4850] <... openat resumed>) = 4 [pid 4848] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4850] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4850] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4850] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4850] pipe2([5, 6], 0) = 0 [pid 4850] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4850] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3619] close(3 [pid 3617] close(3 [pid 3616] close(3 [pid 3620] <... close resumed>) = 0 [pid 3619] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4851 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4852 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4853 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4854 ./strace-static-x86_64: Process 4854 attached [pid 4854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 4853 attached ./strace-static-x86_64: Process 4851 attached ./strace-static-x86_64: Process 4852 attached [pid 4854] setpgid(0, 0 [pid 4853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4854] <... setpgid resumed>) = 0 [pid 4853] <... prctl resumed>) = 0 [pid 4852] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4851] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4853] setpgid(0, 0 [pid 4852] <... prctl resumed>) = 0 [pid 4851] <... prctl resumed>) = 0 [pid 4854] <... openat resumed>) = 3 [pid 4853] <... setpgid resumed>) = 0 [pid 4852] setpgid(0, 0 [pid 4851] setpgid(0, 0 [pid 4854] write(3, "1000", 4 [pid 4852] <... setpgid resumed>) = 0 [pid 4854] <... write resumed>) = 4 [pid 4852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4851] <... setpgid resumed>) = 0 [pid 4853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4854] close(3 [pid 4852] <... openat resumed>) = 3 [pid 4854] <... close resumed>) = 0 [pid 4852] write(3, "1000", 4 [pid 4854] memfd_create("syzkaller", 0 [pid 4852] <... write resumed>) = 4 [pid 4854] <... memfd_create resumed>) = 3 [pid 4853] <... openat resumed>) = 3 [pid 4852] close(3 [pid 4851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4854] ftruncate(3, 0 [pid 4853] write(3, "1000", 4 [pid 4852] <... close resumed>) = 0 [pid 4854] <... ftruncate resumed>) = 0 [pid 4853] <... write resumed>) = 4 [pid 4852] memfd_create("syzkaller", 0 [pid 4851] <... openat resumed>) = 3 [pid 4848] <... mount resumed>) = -1 EIO (Input/output error) [pid 4854] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4853] close(3 [pid 4852] <... memfd_create resumed>) = 3 [pid 4851] write(3, "1000", 4 [pid 4848] exit_group(0 [pid 4854] <... openat resumed>) = 4 [pid 4853] <... close resumed>) = 0 [pid 4852] ftruncate(3, 0 [pid 4851] <... write resumed>) = 4 [pid 4848] <... exit_group resumed>) = ? [pid 4854] ioctl(4, LOOP_SET_FD, 3 [pid 4853] memfd_create("syzkaller", 0 [pid 4852] <... ftruncate resumed>) = 0 [pid 4851] close(3 [pid 4848] +++ exited with 0 +++ [pid 4854] <... ioctl resumed>) = 0 [pid 4852] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4854] mkdir("./file0", 0777 [pid 4853] <... memfd_create resumed>) = 3 [pid 4852] <... openat resumed>) = 4 [pid 4851] <... close resumed>) = 0 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4848, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4854] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4852] ioctl(4, LOOP_SET_FD, 3 [pid 3618] restart_syscall(<... resuming interrupted clone ...> [pid 4854] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4853] ftruncate(3, 0 [pid 4852] <... ioctl resumed>) = 0 [pid 4851] memfd_create("syzkaller", 0 [pid 3618] <... restart_syscall resumed>) = 0 [pid 4854] pipe2( [pid 4853] <... ftruncate resumed>) = 0 [pid 4852] mkdir("./file0", 0777 [pid 4851] <... memfd_create resumed>) = 3 [pid 4854] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4853] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4852] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4851] ftruncate(3, 0 [pid 4854] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4853] <... openat resumed>) = 4 [pid 4852] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4851] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4854] <... write resumed>) = 21 [pid 4853] ioctl(4, LOOP_SET_FD, 3 [pid 4852] pipe2( [pid 4851] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3618] <... openat resumed>) = 3 [pid 4854] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4853] <... ioctl resumed>) = 0 [pid 4852] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4851] <... openat resumed>) = 4 [pid 3618] ioctl(3, LOOP_CLR_FD [pid 4853] mkdir("./file0", 0777 [pid 4852] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4851] ioctl(4, LOOP_SET_FD, 3 [pid 4853] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4852] <... write resumed>) = 21 [pid 4853] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4852] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4851] <... ioctl resumed>) = 0 [pid 4850] <... mount resumed>) = -1 EIO (Input/output error) [pid 4851] mkdir("./file0", 0777 [pid 4853] pipe2( [pid 4850] exit_group(0 [pid 4851] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4853] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4850] <... exit_group resumed>) = ? [pid 4851] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4853] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4851] pipe2( [pid 4854] <... mount resumed>) = -1 EIO (Input/output error) [pid 4853] <... write resumed>) = 21 [pid 4851] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4850] +++ exited with 0 +++ [pid 4854] exit_group(0 [pid 4853] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4851] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4854] <... exit_group resumed>) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4850, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4854] +++ exited with 0 +++ [pid 4851] <... write resumed>) = 21 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4854, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... restart_syscall resumed>) = 0 [pid 4851] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4853] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] <... ioctl resumed>) = 0 [pid 3618] close(3) = 0 [pid 4853] exit_group(0 [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4853] <... exit_group resumed>) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4855 [pid 4853] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4853, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4855 attached [pid 4855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4855] setpgid(0, 0) = 0 [pid 4855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3615] close(3 [pid 4855] write(3, "1000", 4 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4855] <... write resumed>) = 4 [pid 4855] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4856 [pid 3615] <... clone resumed>, child_tidptr=0x5555570a1690) = 4857 [pid 4855] <... close resumed>) = 0 [pid 4855] memfd_create("syzkaller", 0) = 3 [pid 4855] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 4856 attached [pid 4855] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4852] <... mount resumed>) = -1 EIO (Input/output error) [pid 4856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4852] exit_group(0 [pid 4856] <... prctl resumed>) = 0 [pid 4855] <... openat resumed>) = 4 [pid 4852] <... exit_group resumed>) = ? [pid 4852] +++ exited with 0 +++ [pid 4856] setpgid(0, 0 [pid 4855] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 4857 attached [pid 4856] <... setpgid resumed>) = 0 [pid 4855] <... ioctl resumed>) = 0 [pid 4857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4855] mkdir("./file0", 0777 [pid 3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4852, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4857] <... prctl resumed>) = 0 [pid 4856] <... openat resumed>) = 3 [pid 4855] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] restart_syscall(<... resuming interrupted clone ...> [pid 4857] setpgid(0, 0 [pid 4856] write(3, "1000", 4 [pid 4855] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] <... restart_syscall resumed>) = 0 [pid 4857] <... setpgid resumed>) = 0 [pid 4856] <... write resumed>) = 4 [pid 4855] pipe2( [pid 4857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4856] close(3 [pid 4855] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4857] <... openat resumed>) = 3 [pid 4856] <... close resumed>) = 0 [pid 4855] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3619] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4857] write(3, "1000", 4 [pid 4856] memfd_create("syzkaller", 0 [pid 4855] <... write resumed>) = 21 [pid 3619] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 4857] <... write resumed>) = 4 [pid 4856] <... memfd_create resumed>) = 3 [pid 4855] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3619] ioctl(3, LOOP_CLR_FD [pid 3617] close(3 [pid 4857] close(3 [pid 4856] ftruncate(3, 0 [pid 4851] <... mount resumed>) = -1 EIO (Input/output error) [pid 3617] <... close resumed>) = 0 [pid 4857] <... close resumed>) = 0 [pid 4856] <... ftruncate resumed>) = 0 [pid 4851] exit_group(0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4857] memfd_create("syzkaller", 0 [pid 4851] <... exit_group resumed>) = ? [pid 4857] <... memfd_create resumed>) = 3 [pid 4851] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4858 [pid 4857] ftruncate(3, 0) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4851, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4857] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3620] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4857] <... openat resumed>) = 4 [pid 3620] <... openat resumed>) = 3 [pid 4857] ioctl(4, LOOP_SET_FD, 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 4856] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4857] <... ioctl resumed>) = 0 [pid 4856] <... openat resumed>) = 4 [pid 4857] mkdir("./file0", 0777 [pid 4856] ioctl(4, LOOP_SET_FD, 3 [pid 4857] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4856] <... ioctl resumed>) = 0 [pid 4857] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4856] mkdir("./file0", 0777 [pid 4857] pipe2([5, 6], 0) = 0 [pid 4856] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4857] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4856] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4857] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4856] pipe2([5, 6], 0) = 0 [pid 4856] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4856] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 4858 attached [pid 4858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4855] <... mount resumed>) = -1 EIO (Input/output error) [pid 3620] <... ioctl resumed>) = 0 [pid 3619] <... ioctl resumed>) = 0 [pid 4858] <... prctl resumed>) = 0 [pid 3620] close(3 [pid 4858] setpgid(0, 0 [pid 3620] <... close resumed>) = 0 [pid 4855] exit_group(0 [pid 3619] close(3 [pid 4858] <... setpgid resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4855] <... exit_group resumed>) = ? [pid 3619] <... close resumed>) = 0 [pid 4858] <... openat resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x5555570a1690) = 4859 [pid 4858] write(3, "1000", 4) = 4 [pid 4855] +++ exited with 0 +++ [pid 3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4858] close(3 [pid 3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4855, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4858] <... close resumed>) = 0 [pid 4858] memfd_create("syzkaller", 0 [pid 3619] <... clone resumed>, child_tidptr=0x5555570a1690) = 4860 [pid 4858] <... memfd_create resumed>) = 3 [pid 4858] ftruncate(3, 0) = 0 [pid 4858] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3618] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 4858] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... openat resumed>) = 3 [pid 4858] <... ioctl resumed>) = 0 [pid 3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4859 attached [pid 4858] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4858] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4858] pipe2([5, 6], 0) = 0 [pid 4859] <... prctl resumed>) = 0 [pid 4858] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 ./strace-static-x86_64: Process 4860 attached [pid 4859] setpgid(0, 0 [pid 4858] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 4859] <... setpgid resumed>) = 0 [pid 4860] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4857] <... mount resumed>) = -1 EIO (Input/output error) [pid 4860] <... prctl resumed>) = 0 [pid 4859] <... openat resumed>) = 3 [pid 4857] exit_group(0) = ? [pid 4860] setpgid(0, 0 [pid 4859] write(3, "1000", 4 [pid 4857] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4857, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4860] <... setpgid resumed>) = 0 [pid 4859] <... write resumed>) = 4 [pid 4860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4859] close(3 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 4859] <... close resumed>) = 0 [pid 4860] <... openat resumed>) = 3 [pid 4859] memfd_create("syzkaller", 0 [pid 4860] write(3, "1000", 4) = 4 [pid 4859] <... memfd_create resumed>) = 3 [pid 4860] close(3 [pid 4859] ftruncate(3, 0 [pid 4860] <... close resumed>) = 0 [pid 4859] <... ftruncate resumed>) = 0 [pid 4860] memfd_create("syzkaller", 0 [pid 4859] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 4860] <... memfd_create resumed>) = 3 [pid 4860] ftruncate(3, 0 [pid 4859] <... openat resumed>) = 4 [pid 4860] <... ftruncate resumed>) = 0 [pid 4859] ioctl(4, LOOP_SET_FD, 3 [pid 3618] <... ioctl resumed>) = 0 [pid 4860] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 4859] <... ioctl resumed>) = 0 [pid 3618] close(3 [pid 4860] <... openat resumed>) = 4 [pid 4859] mkdir("./file0", 0777 [pid 3618] <... close resumed>) = 0 [pid 4860] ioctl(4, LOOP_SET_FD, 3 [pid 4859] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4856] <... mount resumed>) = -1 EIO (Input/output error) [pid 3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 4860] <... ioctl resumed>) = 0 [pid 4859] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4856] exit_group(0 [pid 4860] mkdir("./file0", 0777 [pid 4859] pipe2( [pid 4856] <... exit_group resumed>) = ? [pid 3618] <... clone resumed>, child_tidptr=0x5555570a1690) = 4861 ./strace-static-x86_64: Process 4861 attached [pid 4860] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 4859] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4856] +++ exited with 0 +++ [pid 4861] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 4860] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4859] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 4861] <... prctl resumed>) = 0 [pid 4860] pipe2( [pid 4859] <... write resumed>) = 21 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4856, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 4861] setpgid(0, 0 [pid 4860] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4859] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 4861] <... setpgid resumed>) = 0 [pid 4860] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 3616] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 4861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 4860] <... write resumed>) = 21 [pid 3616] <... openat resumed>) = 3 [pid 4861] <... openat resumed>) = 3 [pid 4860] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] ioctl(3, LOOP_CLR_FD [pid 4861] write(3, "1000", 4 [pid 4858] <... mount resumed>) = -1 EIO (Input/output error) [pid 4858] exit_group(0) = ? [pid 4858] +++ exited with 0 +++ [pid 4861] <... write resumed>) = 4 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4858, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 4861] close(3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 4861] memfd_create("syzkaller", 0 [pid 3617] <... openat resumed>) = 3 [pid 4861] <... memfd_create resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 4861] ftruncate(3, 0) = 0 [pid 4861] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 4861] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4861] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4861] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4861] pipe2([5, 6], 0) = 0 [pid 4861] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4861] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555570a1690) = 4862 ./strace-static-x86_64: Process 4862 attached [pid 4862] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4862] setpgid(0, 0) = 0 [pid 4862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4862] write(3, "1000", 4) = 4 [pid 4862] close(3) = 0 [pid 4862] memfd_create("syzkaller", 0) = 3 [pid 4862] ftruncate(3, 0) = 0 [pid 4862] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4862] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4862] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4862] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4862] pipe2([5, 6], 0) = 0 [pid 4862] write(6, "\x15\x00\x00\x00\x65\xff\xff\x01\x80\x00\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21) = 21 [pid 4862] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3617] close(3 [pid 3616] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x5555570a1690) = 4863 [pid 3617] <... clone resumed>, child_tidptr=0x5555570a1690) = 4864 ./strace-static-x86_64: Process 4864 attached ./strace-static-x86_64: Process 4863 attached [pid 4863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 105.385044][ T142] [ 105.387400][ T142] ============================================ [ 105.393531][ T142] WARNING: possible recursive locking detected [ 105.399742][ T142] 6.0.0-syzkaller-06205-gffb39098bf87 #0 Not tainted [ 105.406396][ T142] -------------------------------------------- [ 105.412527][ T142] kworker/0:2/142 is trying to acquire lock: [ 105.418484][ T142] ffff88801deb4418 (&clnt->lock){+.+.}-{2:2}, at: p9_req_put+0xc6/0x250 [ 105.426878][ T142] [ 105.426878][ T142] but task is already holding lock: [ 105.434230][ T142] ffff88801deb4418 (&clnt->lock){+.+.}-{2:2}, at: p9_conn_cancel+0xaa/0x970 [ 105.442925][ T142] [ 105.442925][ T142] other info that might help us debug this: [ 105.450977][ T142] Possible unsafe locking scenario: [ 105.450977][ T142] [ 105.458407][ T142] CPU0 [ 105.461671][ T142] ---- [ 105.464933][ T142] lock(&clnt->lock); [ 105.468982][ T142] lock(&clnt->lock); [ 105.473041][ T142] [ 105.473041][ T142] *** DEADLOCK *** [ 105.473041][ T142] [ 105.481165][ T142] May be due to missing lock nesting notation [ 105.481165][ T142] [ 105.489465][ T142] 3 locks held by kworker/0:2/142: [ 105.494558][ T142] #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 105.504981][ T142] #1: ffffc90002defda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 105.515664][ T142] #2: ffff88801deb4418 (&clnt->lock){+.+.}-{2:2}, at: p9_conn_cancel+0xaa/0x970 [ 105.524780][ T142] [ 105.524780][ T142] stack backtrace: [ 105.530676][ T142] CPU: 0 PID: 142 Comm: kworker/0:2 Not tainted 6.0.0-syzkaller-06205-gffb39098bf87 #0 [ 105.540290][ T142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 105.550412][ T142] Workqueue: events p9_read_work [ 105.555341][ T142] Call Trace: [ 105.558606][ T142] [ 105.561524][ T142] dump_stack_lvl+0xcd/0x134 [ 105.566107][ T142] __lock_acquire.cold+0x116/0x3a7 [ 105.571211][ T142] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 105.577186][ T142] ? lockdep_hardirqs_on+0x79/0x100 [ 105.582377][ T142] ? asm_common_interrupt+0x22/0x40 [ 105.587579][ T142] lock_acquire+0x1ab/0x570 [ 105.592076][ T142] ? p9_req_put+0xc6/0x250 [ 105.596488][ T142] ? lock_release+0x780/0x780 [ 105.601157][ T142] ? __wake_up_common_lock+0xde/0x130 [ 105.606615][ T142] ? __wake_up_common+0x650/0x650 [ 105.611631][ T142] ? lock_release+0x780/0x780 [ 105.616300][ T142] ? _raw_spin_lock_irqsave+0x4e/0x50 [ 105.621669][ T142] _raw_spin_lock_irqsave+0x39/0x50 [ 105.626862][ T142] ? p9_req_put+0xc6/0x250 [ 105.631273][ T142] p9_req_put+0xc6/0x250 [ 105.635505][ T142] p9_conn_cancel+0x640/0x970 [ 105.640167][ T142] ? p9_fcall_fini+0xa0/0xa0 [ 105.644749][ T142] ? p9_pollwake+0x1c0/0x1c0 [ 105.649323][ T142] p9_read_work+0x514/0x10b0 [ 105.653896][ T142] ? do_raw_spin_lock+0x120/0x2a0 [ 105.658906][ T142] ? p9_conn_cancel+0x970/0x970 [ 105.663739][ T142] process_one_work+0x991/0x1610 [ 105.668671][ T142] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 105.674032][ T142] ? rwlock_bug.part.0+0x90/0x90 [ 105.678955][ T142] ? _raw_spin_lock_irq+0x41/0x50 [ 105.683973][ T142] worker_thread+0x665/0x1080 [ 105.688703][ T142] ? __kthread_parkme+0x15f/0x220 [ 105.693732][ T142] ? process_one_work+0x1610/0x1610 [ 105.698924][ T142] kthread+0x2e4/0x3a0 [ 105.703043][ T142] ? kthread_complete_and_exit+0x40/0x40 [ 105.708660][ T142] ret_from_fork+0x1f/0x30 [ 105.713075][ T142]