./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3443866968 <...> Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. execve("./syz-executor3443866968", ["./syz-executor3443866968"], 0x7fff8c4a41f0 /* 10 vars */) = 0 brk(NULL) = 0x55555661b000 brk(0x55555661bd00) = 0x55555661bd00 arch_prctl(ARCH_SET_FS, 0x55555661b3c0) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3443866968", 4096) = 28 brk(0x55555663cd00) = 0x55555663cd00 brk(0x55555663d000) = 0x55555663d000 mprotect(0x7f02e1816000, 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=0x7f02e17660a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f02e1766d50}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f02e17660a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f02e1766d50}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3614 attached , child_tidptr=0x55555661b690) = 3614 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3613] <... clone resumed>, child_tidptr=0x55555661b690) = 3615 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3615 attached [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3613] <... clone resumed>, child_tidptr=0x55555661b690) = 3616 [pid 3614] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] close(3./strace-static-x86_64: Process 3616 attached [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3614] <... close resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3618 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3619 [pid 3613] <... clone resumed>, child_tidptr=0x55555661b690) = 3617 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3618 attached ./strace-static-x86_64: Process 3619 attached [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3618] setpgid(0, 0) = 0 [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3619] setpgid(0, 0 [pid 3616] <... openat resumed>) = 3 [pid 3613] <... clone resumed>, child_tidptr=0x55555661b690) = 3620 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3619] <... setpgid resumed>) = 0 [pid 3616] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3618] <... openat resumed>) = 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3617 attached [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] write(3, "1000", 4 [pid 3613] <... clone resumed>, child_tidptr=0x55555661b690) = 3621 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3622 [pid 3619] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3622 attached [pid 3618] <... write resumed>) = 4 [pid 3619] write(3, "1000", 4 [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3618] close(3 [pid 3619] <... write resumed>) = 4 [pid 3618] <... close resumed>) = 0 [pid 3619] close(3 [pid 3622] setpgid(0, 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] <... close resumed>) = 0 [pid 3618] memfd_create("syzkaller", 0 [pid 3622] <... openat resumed>) = 3 [pid 3622] write(3, "1000", 4 [pid 3619] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3621 attached [pid 3622] <... write resumed>) = 4 [pid 3618] <... memfd_create resumed>) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3622] close(3 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3619] <... memfd_create resumed>) = 3 [pid 3618] ftruncate(3, 0 [pid 3622] <... close resumed>) = 0 [pid 3617] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3622] memfd_create("syzkaller", 0 [pid 3621] <... openat resumed>) = 3 [pid 3619] ftruncate(3, 0 [pid 3618] <... ftruncate resumed>) = 0 [pid 3617] close(3 [pid 3622] <... memfd_create resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3619] <... ftruncate resumed>) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 3622] ftruncate(3, 0 [pid 3621] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3619] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3618] <... openat resumed>) = 4 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3622] <... ftruncate resumed>) = 0 [pid 3621] close(3 [pid 3619] <... openat resumed>) = 4 [pid 3618] ioctl(4, LOOP_SET_FD, 3 [pid 3622] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3621] <... close resumed>) = 0 [pid 3622] <... openat resumed>) = 4 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3619] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3620 attached [pid 3622] ioctl(4, LOOP_SET_FD, 3 [pid 3619] <... ioctl resumed>) = 0 [pid 3618] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3623 [pid 3622] <... ioctl resumed>) = 0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3624 [pid 3619] mkdir("./file0", 0777 [pid 3622] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3619] <... mkdir resumed>) = 0 [pid 3618] mkdir("./file0", 0777 [pid 3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3622] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3622] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3619] pipe2( [pid 3618] pipe2( [pid 3622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3619] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 3623 attached [pid 3618] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3624 attached [pid 3623] <... prctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3624] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3623] setpgid(0, 0 [pid 3624] <... prctl resumed>) = 0 [pid 3620] close(3 [pid 3624] setpgid(0, 0 [pid 3623] <... setpgid resumed>) = 0 [pid 3624] <... 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 [pid 3620] <... close resumed>) = 0 [pid 3624] <... openat resumed>) = 3 [pid 3623] <... openat resumed>) = 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3624] write(3, "1000", 4) = 4 [pid 3624] close(3) = 0 [pid 3624] memfd_create("syzkaller", 0) = 3 [pid 3624] ftruncate(3, 0) = 0 [pid 3624] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3623] write(3, "1000", 4 [pid 3624] ioctl(4, LOOP_SET_FD, 3 [pid 3623] <... write resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3626 [pid 3624] <... ioctl resumed>) = 0 [pid 3623] close(3 [pid 3624] mkdir("./file0", 0777./strace-static-x86_64: Process 3626 attached ) = -1 EEXIST (File exists) [pid 3623] <... close resumed>) = 0 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3626] <... prctl resumed>) = 0 [pid 3624] pipe2( [pid 3626] setpgid(0, 0 [pid 3624] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3626] <... setpgid resumed>) = 0 [pid 3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3623] memfd_create("syzkaller", 0 [pid 3626] <... openat resumed>) = 3 [pid 3626] write(3, "1000", 4) = 4 [pid 3626] close(3) = 0 [pid 3626] memfd_create("syzkaller", 0) = 3 [pid 3626] ftruncate(3, 0) = 0 [pid 3626] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3623] <... memfd_create resumed>) = 3 [pid 3626] <... openat resumed>) = 4 [pid 3623] ftruncate(3, 0 [pid 3626] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3623] <... ftruncate resumed>) = 0 [pid 3626] mkdir("./file0", 0777 [pid 3623] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3626] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3623] <... openat resumed>) = 4 [pid 3626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3623] ioctl(4, LOOP_SET_FD, 3 [pid 3626] pipe2([5, 6], 0) = 0 [pid 3623] <... ioctl resumed>) = 0 [pid 3626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3623] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3623] pipe2([5, 6], 0) = 0 [pid 3623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3622] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3622] exit_group(0) = ? [pid 3622] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3619] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3619] exit_group(0 [pid 3616] <... ioctl resumed>) = 0 [pid 3619] <... exit_group resumed>) = ? [pid 3616] close(3 [pid 3619] +++ exited with 0 +++ [pid 3616] <... close resumed>) = 0 [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=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3628 [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 3628 attached [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3628] setpgid(0, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3628] <... setpgid resumed>) = 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/loop2", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3618] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3618] exit_group(0) = ? [pid 3618] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3629 [pid 3614] <... openat resumed>) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3629 attached [pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3629] setpgid(0, 0) = 0 [pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3629] write(3, "1000", 4) = 4 [pid 3629] close(3) = 0 [pid 3629] memfd_create("syzkaller", 0) = 3 [pid 3629] ftruncate(3, 0) = 0 [pid 3629] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3629] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3629] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3629] pipe2([5, 6], 0) = 0 [pid 3629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3626] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3626] exit_group(0) = ? [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3631 [pid 3626] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, 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 3631 attached [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3631] <... prctl resumed>) = 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 3631] ftruncate(3, 0) = 0 [pid 3631] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3631] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3631] mkdir("./file0", 0777) = -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 3624] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3624] exit_group(0 [pid 3620] close(3 [pid 3624] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3624] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3632 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3632 attached [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] memfd_create("syzkaller", 0) = 3 [pid 3632] ftruncate(3, 0) = 0 [pid 3632] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3632] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3632] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3632] pipe2([5, 6], 0) = 0 [pid 3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3628] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] <... ioctl resumed>) = 0 [pid 3628] exit_group(0 [pid 3621] close(3 [pid 3628] <... exit_group resumed>) = ? [pid 3621] <... close resumed>) = 0 [pid 3628] +++ exited with 0 +++ [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3633 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3633 attached [pid 3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3633] setpgid(0, 0) = 0 [pid 3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3633] write(3, "1000", 4) = 4 [pid 3633] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 3633] <... close resumed>) = 0 [pid 3616] close(3 [pid 3633] memfd_create("syzkaller", 0) = 3 [pid 3616] <... close resumed>) = 0 [pid 3633] ftruncate(3, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3633] <... ftruncate resumed>) = 0 [pid 3633] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3634 [pid 3633] <... openat resumed>) = 4 [pid 3633] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3634 attached ) = 0 [pid 3623] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3633] mkdir("./file0", 0777 [pid 3623] exit_group(0 [pid 3633] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3633] pipe2( [pid 3623] <... exit_group resumed>) = ? [pid 3633] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3634] <... prctl resumed>) = 0 [pid 3623] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3634] setpgid(0, 0 [pid 3617] <... openat resumed>) = 3 [pid 3634] <... setpgid resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3634] write(3, "1000", 4) = 4 [pid 3634] close(3) = 0 [pid 3634] memfd_create("syzkaller", 0) = 3 [pid 3634] ftruncate(3, 0) = 0 [pid 3634] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3634] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3634] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3634] pipe2([5, 6], 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3634] 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=0x55555661b690) = 3635 ./strace-static-x86_64: Process 3635 attached [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3629] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3629] exit_group(0) = ? [pid 3629] +++ exited with 0 +++ [pid 3635] setpgid(0, 0) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3635] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3635] write(3, "1000", 4) = 4 [pid 3635] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3635] memfd_create("syzkaller", 0 [pid 3615] <... openat resumed>) = 3 [pid 3635] <... memfd_create resumed>) = 3 [pid 3635] ftruncate(3, 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3635] <... ftruncate resumed>) = 0 [pid 3635] openat(AT_FDCWD, "/dev/loop3", 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 3633] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3633] exit_group(0) = ? [pid 3633] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] 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=0x55555661b690) = 3636 ./strace-static-x86_64: Process 3636 attached [pid 3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3636] setpgid(0, 0) = 0 [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/loop1", O_RDWR [pid 3621] <... ioctl resumed>) = 0 [pid 3636] <... openat resumed>) = 4 [pid 3621] close(3 [pid 3636] ioctl(4, LOOP_SET_FD, 3 [pid 3621] <... close resumed>) = 0 [pid 3636] <... ioctl resumed>) = 0 [pid 3632] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3637 attached [pid 3636] mkdir("./file0", 0777 [pid 3632] exit_group(0 [pid 3631] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3636] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3632] <... exit_group resumed>) = ? [pid 3631] exit_group(0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3637 [pid 3637] <... prctl resumed>) = 0 [pid 3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3632] +++ exited with 0 +++ [pid 3631] <... exit_group resumed>) = ? [pid 3637] setpgid(0, 0 [pid 3636] pipe2( [pid 3631] +++ exited with 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=3} --- [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3637] <... setpgid resumed>) = 0 [pid 3636] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3637] <... openat resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3637] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3637] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3637] close(3 [pid 3614] <... openat resumed>) = 3 [pid 3637] <... close resumed>) = 0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3637] memfd_create("syzkaller", 0) = 3 [pid 3637] ftruncate(3, 0) = 0 [pid 3637] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3637] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3637] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3637] pipe2([5, 6], 0) = 0 [pid 3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3634] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3634] exit_group(0 [pid 3620] close(3) = 0 [pid 3634] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3634] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3638 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] 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 [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3638] <... close resumed>) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3638] memfd_create("syzkaller", 0) = 3 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3639 [pid 3638] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 3639 attached [pid 3638] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3638] <... openat resumed>) = 4 [pid 3638] ioctl(4, LOOP_SET_FD, 3 [pid 3639] <... prctl resumed>) = 0 [pid 3638] <... ioctl resumed>) = 0 [pid 3639] setpgid(0, 0 [pid 3638] mkdir("./file0", 0777 [pid 3639] <... setpgid resumed>) = 0 [pid 3638] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3639] <... openat resumed>) = 3 [pid 3638] pipe2( [pid 3639] write(3, "1000", 4 [pid 3638] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3639] <... write resumed>) = 4 [pid 3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3639] close(3) = 0 [pid 3639] memfd_create("syzkaller", 0) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3639] ftruncate(3, 0 [pid 3616] close(3 [pid 3639] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3639] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3639] <... openat resumed>) = 4 [pid 3639] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3640 [pid 3639] <... ioctl resumed>) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3640 attached [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3635] exit_group(0) = ? [pid 3640] setpgid(0, 0 [pid 3635] +++ exited with 0 +++ [pid 3640] <... setpgid resumed>) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3640] write(3, "1000", 4 [pid 3617] <... openat resumed>) = 3 [pid 3640] <... write resumed>) = 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3640] close(3) = 0 [pid 3640] memfd_create("syzkaller", 0) = 3 [pid 3640] ftruncate(3, 0) = 0 [pid 3640] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [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} --- [pid 3640] pipe2( [pid 3637] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3640] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3637] exit_group(0 [pid 3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3637] <... exit_group resumed>) = ? [pid 3637] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3617] close(3 [pid 3621] <... openat resumed>) = 3 [pid 3617] <... close resumed>) = 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3641 ./strace-static-x86_64: Process 3641 attached [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] setpgid(0, 0) = 0 [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) = 3 [pid 3638] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3638] exit_group(0) = ? [pid 3641] ftruncate(3, 0) = 0 [pid 3641] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3638] +++ exited with 0 +++ [pid 3641] <... openat resumed>) = 4 [pid 3641] ioctl(4, LOOP_SET_FD, 3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3641] <... ioctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3641] mkdir("./file0", 0777 [pid 3620] <... openat resumed>) = 3 [pid 3641] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3641] pipe2([5, 6], 0) = 0 [pid 3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3642 ./strace-static-x86_64: Process 3642 attached [pid 3639] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3639] exit_group(0 [pid 3642] setpgid(0, 0 [pid 3639] <... exit_group resumed>) = ? [pid 3642] <... setpgid resumed>) = 0 [pid 3639] +++ exited with 0 +++ [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3642] <... openat resumed>) = 3 [pid 3642] write(3, "1000", 4 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3642] <... write resumed>) = 4 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3642] close(3) = 0 [pid 3642] memfd_create("syzkaller", 0) = 3 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3642] ftruncate(3, 0) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3642] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3620] <... ioctl resumed>) = 0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3642] <... openat resumed>) = 4 [pid 3620] close(3 [pid 3642] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] <... close resumed>) = 0 [pid 3642] mkdir("./file0", 0777 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3642] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3642] pipe2([5, 6], 0) = 0 [pid 3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3643 ./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 [pid 3636] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3643] <... write resumed>) = 4 [pid 3643] close(3) = 0 [pid 3636] exit_group(0 [pid 3643] memfd_create("syzkaller", 0 [pid 3636] <... exit_group resumed>) = ? [pid 3643] <... memfd_create resumed>) = 3 [pid 3643] ftruncate(3, 0) = 0 [pid 3643] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3643] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3643] mkdir("./file0", 0777 [pid 3636] +++ exited with 0 +++ [pid 3643] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3643] pipe2( [pid 3615] <... restart_syscall resumed>) = 0 [pid 3643] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3640] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3640] exit_group(0) = ? [pid 3640] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3614] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3644 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3645 ./strace-static-x86_64: Process 3644 attached [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3644] setpgid(0, 0) = 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/loop1", 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 3644] pipe2([5, 6], 0) = 0 [pid 3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3645 attached [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] setpgid(0, 0) = 0 [pid 3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3645] write(3, "1000", 4) = 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/loop0", 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] 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 3646 attached , child_tidptr=0x55555661b690) = 3646 [pid 3641] <... mount resumed>) = -1 EFAULT (Bad address) [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=3} --- [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3646] setpgid(0, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3646] <... setpgid resumed>) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 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 3617] <... ioctl resumed>) = 0 [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3646] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3647 [pid 3646] <... openat resumed>) = 4 [pid 3646] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3646] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3646] pipe2([5, 6], 0) = 0 [pid 3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3647 attached [pid 3642] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3642] exit_group(0 [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3642] <... exit_group resumed>) = ? [pid 3647] <... prctl resumed>) = 0 [pid 3642] +++ exited with 0 +++ [pid 3647] setpgid(0, 0) = 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3647] <... openat resumed>) = 3 [pid 3621] <... restart_syscall resumed>) = 0 [pid 3647] write(3, "1000", 4) = 4 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3647] close(3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3647] <... close resumed>) = 0 [pid 3647] memfd_create("syzkaller", 0) = 3 [pid 3647] ftruncate(3, 0) = 0 [pid 3647] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3647] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3647] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3643] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3647] pipe2( [pid 3643] exit_group(0 [pid 3647] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3643] <... exit_group resumed>) = ? [pid 3643] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 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) = 3 [pid 3648] write(3, "1000", 4) = 4 [pid 3648] close(3) = 0 [pid 3648] memfd_create("syzkaller", 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3648] <... memfd_create resumed>) = 3 [pid 3646] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] close(3 [pid 3646] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3646] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3648] ftruncate(3, 0 [pid 3646] +++ exited with 0 +++ [pid 3648] <... ftruncate resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3650 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3648] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3648] <... openat resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3648] mkdir("./file0", 0777 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3648] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3648] pipe2(./strace-static-x86_64: Process 3650 attached [5, 6], 0) = 0 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3650] <... prctl resumed>) = 0 [pid 3650] setpgid(0, 0) = 0 [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3650] write(3, "1000", 4) = 4 [pid 3650] close(3) = 0 [pid 3650] memfd_create("syzkaller", 0) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3650] ftruncate(3, 0 [pid 3616] close(3 [pid 3650] <... ftruncate resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3650] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3650] <... openat resumed>) = 4 [pid 3650] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3651 [pid 3650] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3651 attached [pid 3650] mkdir("./file0", 0777 [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3650] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3651] <... prctl resumed>) = 0 [pid 3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3651] setpgid(0, 0 [pid 3650] pipe2( [pid 3651] <... setpgid resumed>) = 0 [pid 3650] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3644] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3644] exit_group(0) = ? [pid 3644] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3651] <... openat resumed>) = 3 [pid 3651] write(3, "1000", 4) = 4 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3651] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3651] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3651] memfd_create("syzkaller", 0) = 3 [pid 3651] ftruncate(3, 0) = 0 [pid 3651] openat(AT_FDCWD, "/dev/loop2", 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( [pid 3615] <... ioctl resumed>) = 0 [pid 3651] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] close(3 [pid 3651] 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=0x55555661b690) = 3652 ./strace-static-x86_64: Process 3652 attached [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] <... mount resumed>) = -1 EFAULT (Bad address) [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 [pid 3645] exit_group(0 [pid 3652] <... memfd_create resumed>) = 3 [pid 3645] <... exit_group resumed>) = ? [pid 3652] ftruncate(3, 0) = 0 [pid 3652] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3645] +++ exited with 0 +++ [pid 3652] <... openat resumed>) = 4 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3647] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3647] exit_group(0 [pid 3614] <... ioctl resumed>) = 0 [pid 3647] <... exit_group resumed>) = ? [pid 3614] close(3 [pid 3647] +++ exited with 0 +++ [pid 3614] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3653 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./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/loop0", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3648] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3648] exit_group(0) = ? [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3654 [pid 3648] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3654 attached [pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3654] setpgid(0, 0) = 0 [pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3654] write(3, "1000", 4) = 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/loop3", O_RDWR) = 4 [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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3650] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3655 ./strace-static-x86_64: Process 3655 attached [pid 3650] exit_group(0 [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3650] <... exit_group resumed>) = ? [pid 3655] <... prctl resumed>) = 0 [pid 3652] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3650] +++ exited with 0 +++ [pid 3655] setpgid(0, 0 [pid 3652] exit_group(0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3655] <... setpgid resumed>) = 0 [pid 3652] <... exit_group resumed>) = ? [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] +++ exited with 0 +++ [pid 3655] write(3, "1000", 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3655] <... write resumed>) = 4 [pid 3655] close(3 [pid 3651] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3655] <... close resumed>) = 0 [pid 3655] memfd_create("syzkaller", 0 [pid 3651] exit_group(0 [pid 3620] <... ioctl resumed>) = 0 [pid 3655] <... memfd_create resumed>) = 3 [pid 3653] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3651] <... exit_group resumed>) = ? [pid 3620] close(3 [pid 3655] ftruncate(3, 0 [pid 3653] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3655] <... ftruncate resumed>) = 0 [pid 3653] <... exit_group resumed>) = ? [pid 3651] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3655] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3653] +++ exited with 0 +++ [pid 3655] <... openat resumed>) = 4 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3658 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3658 attached [pid 3655] ioctl(4, LOOP_SET_FD, 3 [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3655] <... ioctl resumed>) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3658] <... prctl resumed>) = 0 [pid 3655] mkdir("./file0", 0777 [pid 3615] close(3 [pid 3658] setpgid(0, 0 [pid 3655] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... close resumed>) = 0 [pid 3658] <... setpgid resumed>) = 0 [pid 3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3655] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 3614] <... openat resumed>) = 3 [pid 3658] <... openat resumed>) = 3 [pid 3655] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3659 [pid 3614] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3659 attached [pid 3658] write(3, "1000", 4 [pid 3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3658] <... write resumed>) = 4 [pid 3659] <... prctl resumed>) = 0 [pid 3658] close(3 [pid 3659] setpgid(0, 0 [pid 3658] <... close resumed>) = 0 [pid 3659] <... setpgid resumed>) = 0 [pid 3658] memfd_create("syzkaller", 0 [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3658] <... memfd_create resumed>) = 3 [pid 3659] <... openat resumed>) = 3 [pid 3658] ftruncate(3, 0 [pid 3659] write(3, "1000", 4 [pid 3658] <... ftruncate resumed>) = 0 [pid 3659] <... write resumed>) = 4 [pid 3658] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3659] close(3 [pid 3658] <... openat resumed>) = 4 [pid 3659] <... close resumed>) = 0 [pid 3658] ioctl(4, LOOP_SET_FD, 3 [pid 3659] memfd_create("syzkaller", 0 [pid 3658] <... ioctl resumed>) = 0 [pid 3659] <... memfd_create resumed>) = 3 [pid 3658] mkdir("./file0", 0777 [pid 3659] ftruncate(3, 0 [pid 3658] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... ioctl resumed>) = 0 [pid 3659] <... ftruncate resumed>) = 0 [pid 3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] close(3 [pid 3659] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3658] pipe2( [pid 3616] <... close resumed>) = 0 [pid 3659] <... openat resumed>) = 4 [pid 3658] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] <... ioctl resumed>) = 0 [pid 3659] ioctl(4, LOOP_SET_FD, 3 [pid 3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] close(3 [pid 3659] <... ioctl resumed>) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3660 [pid 3614] <... close resumed>) = 0 [pid 3659] mkdir("./file0", 0777 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3659] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3661 ./strace-static-x86_64: Process 3660 attached [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0 [pid 3659] pipe2( [pid 3660] <... setpgid resumed>) = 0 [pid 3659] <... pipe2 resumed>[5, 6], 0) = 0 ./strace-static-x86_64: Process 3661 attached [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3660] <... openat resumed>) = 3 [pid 3661] <... prctl resumed>) = 0 [pid 3660] write(3, "1000", 4 [pid 3661] setpgid(0, 0 [pid 3660] <... write resumed>) = 4 [pid 3661] <... setpgid resumed>) = 0 [pid 3660] close(3 [pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3660] <... close resumed>) = 0 [pid 3661] <... openat resumed>) = 3 [pid 3660] memfd_create("syzkaller", 0 [pid 3654] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3661] write(3, "1000", 4 [pid 3660] <... memfd_create resumed>) = 3 [pid 3654] exit_group(0 [pid 3661] <... write resumed>) = 4 [pid 3660] ftruncate(3, 0 [pid 3661] close(3 [pid 3660] <... ftruncate resumed>) = 0 [pid 3661] <... close resumed>) = 0 [pid 3660] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3661] memfd_create("syzkaller", 0 [pid 3660] <... openat resumed>) = 4 [pid 3654] <... exit_group resumed>) = ? [pid 3661] <... memfd_create resumed>) = 3 [pid 3660] ioctl(4, LOOP_SET_FD, 3 [pid 3661] ftruncate(3, 0 [pid 3660] <... ioctl resumed>) = 0 [pid 3654] +++ exited with 0 +++ [pid 3661] <... ftruncate resumed>) = 0 [pid 3660] mkdir("./file0", 0777 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3661] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3660] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3661] <... openat resumed>) = 4 [pid 3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3661] ioctl(4, LOOP_SET_FD, 3 [pid 3660] pipe2( [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3661] <... ioctl resumed>) = 0 [pid 3660] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3661] mkdir("./file0", 0777 [pid 3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3661] <... mkdir resumed>) = -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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3655] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3655] exit_group(0) = ? [pid 3655] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] 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=0x55555661b690) = 3662 ./strace-static-x86_64: Process 3662 attached [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) = 4 [pid 3662] close(3) = 0 [pid 3662] memfd_create("syzkaller", 0) = 3 [pid 3662] ftruncate(3, 0) = 0 [pid 3662] openat(AT_FDCWD, "/dev/loop3", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3658] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3658] exit_group(0 [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3658] <... exit_group resumed>) = ? [pid 3621] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3658] +++ exited with 0 +++ [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3663 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3663 attached [pid 3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3663] setpgid(0, 0) = 0 [pid 3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3663] write(3, "1000", 4) = 4 [pid 3663] close(3) = 0 [pid 3663] memfd_create("syzkaller", 0) = 3 [pid 3663] ftruncate(3, 0) = 0 [pid 3663] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3663] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3663] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3663] pipe2( [pid 3620] close(3 [pid 3663] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 3663] 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, child_tidptr=0x55555661b690) = 3664 ./strace-static-x86_64: Process 3664 attached [pid 3659] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3659] exit_group(0 [pid 3664] <... prctl resumed>) = 0 [pid 3659] <... exit_group resumed>) = ? [pid 3664] setpgid(0, 0 [pid 3659] +++ exited with 0 +++ [pid 3664] <... setpgid resumed>) = 0 [pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 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) = 0 [pid 3664] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [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 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3664] 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) = 0 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3665 ./strace-static-x86_64: Process 3665 attached [pid 3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3665] setpgid(0, 0) = 0 [pid 3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3665] write(3, "1000", 4) = 4 [pid 3663] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3665] close(3) = 0 [pid 3665] memfd_create("syzkaller", 0) = 3 [pid 3665] ftruncate(3, 0) = 0 [pid 3665] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3665] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3665] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3665] pipe2([5, 6], 0) = 0 [pid 3663] exit_group(0 [pid 3665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3663] <... exit_group resumed>) = ? [pid 3663] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3666 ./strace-static-x86_64: Process 3666 attached [pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3666] setpgid(0, 0) = 0 [pid 3660] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3660] exit_group(0 [pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3660] <... exit_group resumed>) = ? [pid 3666] <... openat resumed>) = 3 [pid 3666] write(3, "1000", 4 [pid 3660] +++ exited with 0 +++ [pid 3666] <... write resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3666] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3666] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 3666] <... memfd_create resumed>) = 3 [pid 3666] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3666] <... ftruncate resumed>) = 0 [pid 3666] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3666] <... openat resumed>) = 4 [pid 3616] close(3 [pid 3666] ioctl(4, LOOP_SET_FD, 3 [pid 3616] <... close resumed>) = 0 [pid 3666] <... ioctl resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3666] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3670 attached [pid 3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3670 [pid 3666] pipe2([5, 6], 0) = 0 [pid 3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3661] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3661] exit_group(0) = ? [pid 3661] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3670] <... prctl resumed>) = 0 [pid 3670] setpgid(0, 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3670] <... setpgid resumed>) = 0 [pid 3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] <... openat resumed>) = 3 [pid 3670] <... openat resumed>) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3670] write(3, "1000", 4) = 4 [pid 3670] close(3) = 0 [pid 3670] memfd_create("syzkaller", 0) = 3 [pid 3670] ftruncate(3, 0) = 0 [pid 3670] openat(AT_FDCWD, "/dev/loop2", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3662] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3662] exit_group(0) = ? [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3671 [pid 3662] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3671 attached [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... openat resumed>) = 3 [pid 3671] <... prctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3671] setpgid(0, 0) = 0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3671] write(3, "1000", 4 [pid 3617] close(3 [pid 3671] <... write resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 3671] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3671] memfd_create("syzkaller", 0) = 3 [pid 3671] ftruncate(3, 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3672 [pid 3671] <... ftruncate resumed>) = 0 [pid 3671] openat(AT_FDCWD, "/dev/loop0", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3672 attached [pid 3664] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3664] exit_group(0 [pid 3672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3664] <... exit_group resumed>) = ? [pid 3672] <... prctl resumed>) = 0 [pid 3672] setpgid(0, 0 [pid 3664] +++ exited with 0 +++ [pid 3672] <... setpgid resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3672] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 3672] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3672] close(3) = 0 [pid 3672] memfd_create("syzkaller", 0) = 3 [pid 3672] ftruncate(3, 0) = 0 [pid 3672] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [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 3672] 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=0x55555661b690) = 3673 ./strace-static-x86_64: Process 3673 attached [pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3673] setpgid(0, 0) = 0 [pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3666] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3666] exit_group(0) = ? [pid 3666] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3673] <... openat resumed>) = 3 [pid 3673] write(3, "1000", 4) = 4 [pid 3673] close(3) = 0 [pid 3673] memfd_create("syzkaller", 0) = 3 [pid 3673] ftruncate(3, 0) = 0 [pid 3673] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3673] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3673] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3673] pipe2([5, 6], 0) = 0 [pid 3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3674 ./strace-static-x86_64: Process 3674 attached [pid 3670] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3670] exit_group(0 [pid 3674] <... prctl resumed>) = 0 [pid 3670] <... exit_group resumed>) = ? [pid 3674] setpgid(0, 0) = 0 [pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3670] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3674] write(3, "1000", 4) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3674] close(3) = 0 [pid 3674] memfd_create("syzkaller", 0) = 3 [pid 3674] ftruncate(3, 0 [pid 3665] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3674] <... ftruncate resumed>) = 0 [pid 3674] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3674] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3665] exit_group(0 [pid 3674] mkdir("./file0", 0777 [pid 3665] <... exit_group resumed>) = ? [pid 3674] <... mkdir resumed>) = -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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3665] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, 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/loop1", 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=0x55555661b690) = 3675 ./strace-static-x86_64: Process 3675 attached [pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3675] setpgid(0, 0) = 0 [pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3675] write(3, "1000", 4) = 4 [pid 3675] close(3) = 0 [pid 3675] memfd_create("syzkaller", 0 [pid 3671] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3675] <... memfd_create resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3675] ftruncate(3, 0) = 0 [pid 3675] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3675] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3676 [pid 3675] <... ioctl resumed>) = 0 [pid 3671] exit_group(0 [pid 3675] mkdir("./file0", 0777 [pid 3671] <... exit_group resumed>) = ? [pid 3675] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3676 attached [pid 3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3676] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3675] pipe2( [pid 3676] <... prctl resumed>) = 0 [pid 3675] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3676] setpgid(0, 0 [pid 3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3676] <... setpgid resumed>) = 0 [pid 3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3676] write(3, "1000", 4) = 4 [pid 3676] close(3) = 0 [pid 3676] memfd_create("syzkaller", 0 [pid 3671] +++ exited with 0 +++ [pid 3676] <... memfd_create resumed>) = 3 [pid 3676] ftruncate(3, 0) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3676] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3676] <... openat resumed>) = 4 [pid 3676] ioctl(4, LOOP_SET_FD, 3 [pid 3614] <... openat resumed>) = 3 [pid 3676] <... ioctl resumed>) = 0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3676] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3676] pipe2([5, 6], 0) = 0 [pid 3676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3672] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3672] exit_group(0) = ? [pid 3672] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3677 ./strace-static-x86_64: Process 3677 attached [pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3677] setpgid(0, 0) = 0 [pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [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=0x55555661b690) = 3678 [pid 3677] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3678 attached [pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3673] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3673] exit_group(0) = ? [pid 3673] +++ exited with 0 +++ [pid 3678] <... prctl resumed>) = 0 [pid 3678] setpgid(0, 0) = 0 [pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3678] write(3, "1000", 4) = 4 [pid 3678] close(3) = 0 [pid 3678] memfd_create("syzkaller", 0) = 3 [pid 3678] ftruncate(3, 0) = 0 [pid 3678] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3678] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3678] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3678] pipe2( [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3678] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3677] write(3, "1000", 4) = 4 [pid 3677] close(3) = 0 [pid 3677] memfd_create("syzkaller", 0) = 3 [pid 3677] ftruncate(3, 0) = 0 [pid 3677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3677] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3677] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3677] pipe2([5, 6], 0) = 0 [pid 3677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3674] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3674] exit_group(0) = ? [pid 3674] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3620] close(3 [pid 3621] <... ioctl resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3621] close(3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3679 ./strace-static-x86_64: Process 3680 attached [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3680 [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 3679 attached [pid 3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3679] setpgid(0, 0) = 0 [pid 3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3680] setpgid(0, 0 [pid 3675] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3679] write(3, "1000", 4) = 4 [pid 3679] close(3) = 0 [pid 3679] memfd_create("syzkaller", 0) = 3 [pid 3680] <... setpgid resumed>) = 0 [pid 3679] ftruncate(3, 0 [pid 3675] exit_group(0 [pid 3679] <... ftruncate resumed>) = 0 [pid 3679] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3679] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3679] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3679] pipe2([5, 6], 0) = 0 [pid 3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3675] <... exit_group resumed>) = ? [pid 3680] <... openat resumed>) = 3 [pid 3680] write(3, "1000", 4 [pid 3675] +++ exited with 0 +++ [pid 3680] <... write resumed>) = 4 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3680] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3680] memfd_create("syzkaller", 0 [pid 3616] <... openat resumed>) = 3 [pid 3680] <... memfd_create resumed>) = 3 [pid 3680] ftruncate(3, 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3680] <... ftruncate resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3680] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] close(3 [pid 3680] <... openat resumed>) = 4 [pid 3616] <... close resumed>) = 0 [pid 3680] ioctl(4, LOOP_SET_FD, 3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3680] <... ioctl resumed>) = 0 [pid 3680] mkdir("./file0", 0777./strace-static-x86_64: Process 3681 attached ) = -1 EEXIST (File exists) [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3681 [pid 3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3680] pipe2( [pid 3681] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3680] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3681] <... prctl resumed>) = 0 [pid 3677] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3681] setpgid(0, 0 [pid 3677] exit_group(0) = ? [pid 3681] <... setpgid resumed>) = 0 [pid 3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3677] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3681] <... openat resumed>) = 3 [pid 3681] write(3, "1000", 4 [pid 3676] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3681] <... write resumed>) = 4 [pid 3676] exit_group(0 [pid 3614] <... openat resumed>) = 3 [pid 3681] close(3 [pid 3676] <... exit_group resumed>) = ? [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3681] <... close resumed>) = 0 [pid 3676] +++ exited with 0 +++ [pid 3614] <... ioctl resumed>) = 0 [pid 3681] memfd_create("syzkaller", 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] close(3 [pid 3681] <... memfd_create resumed>) = 3 [pid 3614] <... close resumed>) = 0 [pid 3681] ftruncate(3, 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3681] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3681] <... openat resumed>) = 4 [pid 3681] ioctl(4, LOOP_SET_FD, 3 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3683 [pid 3681] <... ioctl resumed>) = 0 [pid 3681] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3681] pipe2([5, 6], 0) = 0 [pid 3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3678] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 3683 attached [pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3683] setpgid(0, 0) = 0 [pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3678] exit_group(0) = ? [pid 3678] +++ exited with 0 +++ [pid 3683] <... openat resumed>) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3683] write(3, "1000", 4) = 4 [pid 3683] close(3) = 0 [pid 3683] memfd_create("syzkaller", 0) = 3 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3683] ftruncate(3, 0) = 0 [pid 3683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3683] ioctl(4, LOOP_SET_FD, 3) = 0 [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 3615] close(3 [pid 3683] 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 [pid 3617] openat(AT_FDCWD, "/dev/loop3", 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 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3684 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3685 ./strace-static-x86_64: Process 3685 attached [pid 3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3685] setpgid(0, 0) = 0 [pid 3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3685] write(3, "1000", 4) = 4 [pid 3685] close(3 [pid 3679] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3685] <... close resumed>) = 0 [pid 3679] exit_group(0./strace-static-x86_64: Process 3684 attached [pid 3685] memfd_create("syzkaller", 0) = 3 [pid 3685] ftruncate(3, 0) = 0 [pid 3685] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3679] <... exit_group resumed>) = ? [pid 3685] <... openat resumed>) = 4 [pid 3685] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3685] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3685] pipe2( [pid 3684] <... prctl resumed>) = 0 [pid 3679] +++ exited with 0 +++ [pid 3685] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3685] 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=3679, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3684] setpgid(0, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3684] <... setpgid resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3684] <... openat resumed>) = 3 [pid 3681] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3684] write(3, "1000", 4 [pid 3681] exit_group(0 [pid 3684] <... write resumed>) = 4 [pid 3681] <... exit_group resumed>) = ? [pid 3684] close(3 [pid 3681] +++ exited with 0 +++ [pid 3684] <... close resumed>) = 0 [pid 3684] memfd_create("syzkaller", 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3684] <... memfd_create resumed>) = 3 [pid 3680] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3620] <... ioctl resumed>) = 0 [pid 3684] ftruncate(3, 0 [pid 3680] exit_group(0 [pid 3620] close(3 [pid 3616] <... openat resumed>) = 3 [pid 3684] <... ftruncate resumed>) = 0 [pid 3680] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3684] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3680] +++ exited with 0 +++ [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3684] <... openat resumed>) = 4 ./strace-static-x86_64: Process 3687 attached [pid 3684] ioctl(4, LOOP_SET_FD, 3 [pid 3687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3684] <... ioctl resumed>) = 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3687 [pid 3684] mkdir("./file0", 0777 [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3687] <... prctl resumed>) = 0 [pid 3621] <... restart_syscall resumed>) = 0 [pid 3684] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3687] setpgid(0, 0 [pid 3684] pipe2( [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3684] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] <... openat resumed>) = 3 [pid 3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3687] <... setpgid resumed>) = 0 [pid 3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [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=0x55555661b690) = 3688 [pid 3687] write(3, "1000", 4) = 4 [pid 3687] close(3 [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3689 attached ./strace-static-x86_64: Process 3688 attached [pid 3687] <... close resumed>) = 0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3689 [pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3687] memfd_create("syzkaller", 0 [pid 3683] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3687] <... memfd_create resumed>) = 3 [pid 3687] ftruncate(3, 0) = 0 [pid 3687] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3687] ioctl(4, LOOP_SET_FD, 3 [pid 3688] <... prctl resumed>) = 0 [pid 3687] <... ioctl resumed>) = 0 [pid 3688] setpgid(0, 0 [pid 3687] mkdir("./file0", 0777 [pid 3688] <... setpgid resumed>) = 0 [pid 3687] <... mkdir resumed>) = -1 EEXIST (File exists) [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] <... prctl resumed>) = 0 [pid 3688] <... openat resumed>) = 3 [pid 3687] pipe2( [pid 3683] exit_group(0 [pid 3689] setpgid(0, 0 [pid 3688] write(3, "1000", 4 [pid 3687] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3683] <... exit_group resumed>) = ? [pid 3688] <... write resumed>) = 4 [pid 3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3688] close(3 [pid 3683] +++ exited with 0 +++ [pid 3688] <... close resumed>) = 0 [pid 3688] memfd_create("syzkaller", 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3688] <... memfd_create resumed>) = 3 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3688] ftruncate(3, 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3688] <... ftruncate resumed>) = 0 [pid 3688] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3688] ioctl(4, LOOP_SET_FD, 3 [pid 3614] <... openat resumed>) = 3 [pid 3688] <... ioctl resumed>) = 0 [pid 3614] ioctl(3, LOOP_CLR_FD [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 3689] <... setpgid resumed>) = 0 [pid 3688] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3685] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3689] write(3, "1000", 4 [pid 3685] exit_group(0 [pid 3689] <... write resumed>) = 4 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3690 [pid 3689] close(3 [pid 3685] <... exit_group resumed>) = ? [pid 3689] <... close resumed>) = 0 ./strace-static-x86_64: Process 3690 attached [pid 3690] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3685] +++ exited with 0 +++ [pid 3690] <... prctl resumed>) = 0 [pid 3689] memfd_create("syzkaller", 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3690] setpgid(0, 0 [pid 3689] <... memfd_create resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3690] <... setpgid resumed>) = 0 [pid 3689] ftruncate(3, 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3689] <... ftruncate resumed>) = 0 [pid 3690] <... openat resumed>) = 3 [pid 3689] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3690] write(3, "1000", 4 [pid 3689] <... openat resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3690] <... write resumed>) = 4 [pid 3689] ioctl(4, LOOP_SET_FD, 3 [pid 3617] <... openat resumed>) = 3 [pid 3690] close(3 [pid 3689] <... ioctl resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3690] <... close resumed>) = 0 [pid 3689] mkdir("./file0", 0777 [pid 3690] memfd_create("syzkaller", 0 [pid 3689] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3690] <... memfd_create resumed>) = 3 [pid 3689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3690] ftruncate(3, 0 [pid 3689] pipe2( [pid 3690] <... ftruncate resumed>) = 0 [pid 3689] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3690] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3684] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3690] <... openat resumed>) = 4 [pid 3684] exit_group(0 [pid 3690] ioctl(4, LOOP_SET_FD, 3 [pid 3684] <... exit_group resumed>) = ? [pid 3690] <... ioctl resumed>) = 0 [pid 3684] +++ exited with 0 +++ [pid 3690] mkdir("./file0", 0777 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3690] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3690] pipe2( [pid 3615] <... restart_syscall resumed>) = 0 [pid 3690] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3687] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] close(3 [pid 3615] close(3 [pid 3687] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3687] <... exit_group resumed>) = ? [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 3687] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3691 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3692 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3692 attached ) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3691 attached ) = 0 [pid 3692] setpgid(0, 0 [pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3692] <... setpgid resumed>) = 0 [pid 3691] <... prctl resumed>) = 0 [pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3691] setpgid(0, 0 [pid 3692] <... openat resumed>) = 3 [pid 3691] <... setpgid resumed>) = 0 [pid 3692] write(3, "1000", 4 [pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3692] <... write resumed>) = 4 [pid 3691] <... openat resumed>) = 3 [pid 3692] close(3 [pid 3691] write(3, "1000", 4 [pid 3692] <... close resumed>) = 0 [pid 3691] <... write resumed>) = 4 [pid 3691] close(3 [pid 3692] memfd_create("syzkaller", 0 [pid 3691] <... close resumed>) = 0 [pid 3692] <... memfd_create resumed>) = 3 [pid 3688] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3692] ftruncate(3, 0 [pid 3691] memfd_create("syzkaller", 0 [pid 3692] <... ftruncate resumed>) = 0 [pid 3688] exit_group(0 [pid 3692] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3691] <... memfd_create resumed>) = 3 [pid 3688] <... exit_group resumed>) = ? [pid 3692] <... openat resumed>) = 4 [pid 3691] ftruncate(3, 0 [pid 3688] +++ exited with 0 +++ [pid 3692] ioctl(4, LOOP_SET_FD, 3 [pid 3691] <... ftruncate resumed>) = 0 [pid 3692] <... ioctl resumed>) = 0 [pid 3691] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3692] mkdir("./file0", 0777 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3692] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3691] <... openat resumed>) = 4 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] <... openat resumed>) = 3 [pid 3692] pipe2( [pid 3691] ioctl(4, LOOP_SET_FD, 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3692] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3691] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3691] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3691] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3691] --- 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 3691] pipe2([5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3693 [pid 3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3693 attached [pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3693] setpgid(0, 0) = 0 [pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3690] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3693] write(3, "1000", 4 [pid 3690] exit_group(0 [pid 3693] <... write resumed>) = 4 [pid 3690] <... exit_group resumed>) = ? [pid 3693] close(3) = 0 [pid 3693] memfd_create("syzkaller", 0) = 3 [pid 3690] +++ exited with 0 +++ [pid 3693] ftruncate(3, 0) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3693] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3616] <... ioctl resumed>) = 0 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3693] ioctl(4, LOOP_SET_FD, 3 [pid 3616] close(3 [pid 3693] <... ioctl resumed>) = 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3693] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3616] <... close resumed>) = 0 [pid 3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3693] pipe2([5, 6], 0) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3694 attached [pid 3689] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3694 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3689] exit_group(0 [pid 3614] <... openat resumed>) = 3 [pid 3689] <... exit_group resumed>) = ? [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3689] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3621] <... restart_syscall resumed>) = 0 [pid 3694] <... prctl resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3694] setpgid(0, 0 [pid 3621] <... openat resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3694] <... setpgid resumed>) = 0 [pid 3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3694] write(3, "1000", 4) = 4 [pid 3694] close(3) = 0 [pid 3694] memfd_create("syzkaller", 0) = 3 [pid 3694] ftruncate(3, 0) = 0 [pid 3694] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3694] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3694] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3694] pipe2( [pid 3692] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3692] exit_group(0 [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3614] close(3 [pid 3621] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3692] <... exit_group resumed>) = ? [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3695 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3696 [pid 3694] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3692] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD./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./strace-static-x86_64: Process 3696 attached [pid 3696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3691] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3696] <... prctl resumed>) = 0 [pid 3695] <... openat resumed>) = 3 [pid 3691] exit_group(0 [pid 3696] setpgid(0, 0 [pid 3695] write(3, "1000", 4 [pid 3696] <... setpgid resumed>) = 0 [pid 3695] <... write resumed>) = 4 [pid 3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3695] close(3 [pid 3696] <... openat resumed>) = 3 [pid 3695] <... close resumed>) = 0 [pid 3691] <... exit_group resumed>) = ? [pid 3696] write(3, "1000", 4 [pid 3695] memfd_create("syzkaller", 0 [pid 3696] <... write resumed>) = 4 [pid 3695] <... memfd_create resumed>) = 3 [pid 3696] close(3 [pid 3695] ftruncate(3, 0 [pid 3696] <... close resumed>) = 0 [pid 3695] <... ftruncate resumed>) = 0 [pid 3696] memfd_create("syzkaller", 0 [pid 3695] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3696] <... memfd_create resumed>) = 3 [pid 3695] <... openat resumed>) = 4 [pid 3696] ftruncate(3, 0 [pid 3695] ioctl(4, LOOP_SET_FD, 3 [pid 3696] <... ftruncate resumed>) = 0 [pid 3695] <... ioctl resumed>) = 0 [pid 3696] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3695] mkdir("./file0", 0777 [pid 3696] <... openat resumed>) = 4 [pid 3695] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3696] ioctl(4, LOOP_SET_FD, 3 [pid 3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3696] <... ioctl resumed>) = 0 [pid 3695] pipe2( [pid 3696] mkdir("./file0", 0777 [pid 3695] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3696] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3696] pipe2([5, 6], 0) = 0 [pid 3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3691] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... close resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3693] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3697 [pid 3693] exit_group(0) = ? ./strace-static-x86_64: Process 3697 attached [pid 3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3697] setpgid(0, 0) = 0 [pid 3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3693] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3697] <... openat resumed>) = 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3694] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3697] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 3697] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3694] exit_group(0 [pid 3697] close(3) = 0 [pid 3694] <... exit_group resumed>) = ? [pid 3697] memfd_create("syzkaller", 0) = 3 [pid 3697] ftruncate(3, 0) = 0 [pid 3697] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3697] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3697] mkdir("./file0", 0777 [pid 3694] +++ exited with 0 +++ [pid 3697] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3697] pipe2([5, 6], 0) = 0 [pid 3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3696] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3698 ./strace-static-x86_64: Process 3698 attached [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3698] setpgid(0, 0) = 0 [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3698] write(3, "1000", 4) = 4 [pid 3698] close(3) = 0 [pid 3698] memfd_create("syzkaller", 0 [pid 3696] exit_group(0 [pid 3698] <... memfd_create resumed>) = 3 [pid 3696] <... exit_group resumed>) = ? [pid 3698] ftruncate(3, 0) = 0 [pid 3698] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3696] +++ exited with 0 +++ [pid 3698] <... openat resumed>) = 4 [pid 3698] ioctl(4, LOOP_SET_FD, 3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3698] <... ioctl resumed>) = 0 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3698] mkdir("./file0", 0777 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3698] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3695] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3695] exit_group(0 [pid 3620] close(3 [pid 3616] close(3 [pid 3698] pipe2( [pid 3695] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3698] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3695] +++ exited with 0 +++ [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] <... openat resumed>) = 3 [pid 3698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3699 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3700 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3700 attached [pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3700] setpgid(0, 0) = 0 [pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3700] write(3, "1000", 4) = 4 [pid 3700] close(3) = 0 [pid 3700] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 3699 attached [pid 3700] ftruncate(3, 0) = 0 [pid 3700] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3699] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3700] <... openat resumed>) = 4 [pid 3699] <... prctl resumed>) = 0 [pid 3700] ioctl(4, LOOP_SET_FD, 3 [pid 3699] setpgid(0, 0 [pid 3700] <... ioctl resumed>) = 0 [pid 3699] <... setpgid resumed>) = 0 [pid 3700] mkdir("./file0", 0777 [pid 3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3700] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3699] <... openat resumed>) = 3 [pid 3700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3699] write(3, "1000", 4 [pid 3700] pipe2( [pid 3699] <... write resumed>) = 4 [pid 3700] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3699] close(3 [pid 3697] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3699] <... close resumed>) = 0 [pid 3697] exit_group(0 [pid 3699] memfd_create("syzkaller", 0 [pid 3697] <... exit_group resumed>) = ? [pid 3699] <... memfd_create resumed>) = 3 [pid 3697] +++ exited with 0 +++ [pid 3699] ftruncate(3, 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3699] <... ftruncate resumed>) = 0 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3699] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... restart_syscall resumed>) = 0 [pid 3699] <... openat resumed>) = 4 [pid 3699] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3699] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3615] <... openat resumed>) = 3 [pid 3699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3699] pipe2([5, 6], 0) = 0 [pid 3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3701 attached [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3701 [pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3701] setpgid(0, 0 [pid 3621] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3702 attached [pid 3701] <... setpgid resumed>) = 0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3702 [pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3702] <... prctl resumed>) = 0 [pid 3701] <... openat resumed>) = 3 [pid 3702] setpgid(0, 0 [pid 3701] write(3, "1000", 4 [pid 3702] <... setpgid resumed>) = 0 [pid 3701] <... write resumed>) = 4 [pid 3698] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3698] exit_group(0) = ? [pid 3698] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] 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 resumed>, child_tidptr=0x55555661b690) = 3703 [pid 3701] close(3./strace-static-x86_64: Process 3703 attached [pid 3703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3701] <... close resumed>) = 0 [pid 3703] <... prctl resumed>) = 0 [pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3701] memfd_create("syzkaller", 0 [pid 3703] setpgid(0, 0 [pid 3702] <... openat resumed>) = 3 [pid 3701] <... memfd_create resumed>) = 3 [pid 3703] <... setpgid resumed>) = 0 [pid 3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3701] ftruncate(3, 0 [pid 3703] <... openat resumed>) = 3 [pid 3703] write(3, "1000", 4 [pid 3701] <... ftruncate resumed>) = 0 [pid 3703] <... write resumed>) = 4 [pid 3703] close(3) = 0 [pid 3701] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3703] memfd_create("syzkaller", 0 [pid 3701] <... openat resumed>) = 4 [pid 3703] <... memfd_create resumed>) = 3 [pid 3701] ioctl(4, LOOP_SET_FD, 3 [pid 3703] ftruncate(3, 0) = 0 [pid 3703] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3702] write(3, "1000", 4 [pid 3701] <... ioctl resumed>) = 0 [pid 3703] <... openat resumed>) = 4 [pid 3703] ioctl(4, LOOP_SET_FD, 3 [pid 3701] mkdir("./file0", 0777 [pid 3703] <... ioctl resumed>) = 0 [pid 3702] <... write resumed>) = 4 [pid 3703] mkdir("./file0", 0777 [pid 3701] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3702] close(3 [pid 3703] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3702] <... close resumed>) = 0 [pid 3701] pipe2( [pid 3703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3702] memfd_create("syzkaller", 0 [pid 3701] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3702] <... memfd_create resumed>) = 3 [pid 3702] ftruncate(3, 0 [pid 3701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3703] pipe2([5, 6], 0) = 0 [pid 3703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3702] <... ftruncate resumed>) = 0 [pid 3700] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] <... ioctl resumed>) = 0 [pid 3700] exit_group(0) = ? [pid 3700] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3617] <... close resumed>) = 0 [pid 3616] <... openat resumed>) = 3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3704 [pid 3702] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3702] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3702] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3702] pipe2(./strace-static-x86_64: Process 3704 attached [5, 6], 0) = 0 [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3704] setpgid(0, 0) = 0 [pid 3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3704] write(3, "1000", 4) = 4 [pid 3704] close(3) = 0 [pid 3704] memfd_create("syzkaller", 0) = 3 [pid 3704] ftruncate(3, 0) = 0 [pid 3704] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3699] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3699] exit_group(0) = ? [pid 3699] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 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=2} --- [pid 3616] close(3) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] 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 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3705 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3706 ./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 3705] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3705] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3705] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3705] pipe2([5, 6], 0) = 0 [pid 3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3706 attached [pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3701] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3706] setpgid(0, 0 [pid 3701] exit_group(0 [pid 3706] <... setpgid resumed>) = 0 [pid 3701] <... exit_group resumed>) = ? [pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3701] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3706] write(3, "1000", 4) = 4 [pid 3704] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3706] close(3 [pid 3704] exit_group(0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3706] <... close resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3706] memfd_create("syzkaller", 0 [pid 3704] <... exit_group resumed>) = ? [pid 3703] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3702] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3706] <... memfd_create resumed>) = 3 [pid 3704] +++ exited with 0 +++ [pid 3703] exit_group(0 [pid 3702] exit_group(0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3703] <... exit_group resumed>) = ? [pid 3702] <... exit_group resumed>) = ? [pid 3614] <... ioctl resumed>) = 0 [pid 3706] ftruncate(3, 0 [pid 3703] +++ exited with 0 +++ [pid 3702] +++ exited with 0 +++ [pid 3614] close(3 [pid 3706] <... ftruncate resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] <... close resumed>) = 0 [pid 3706] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3706] <... openat resumed>) = 4 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3706] ioctl(4, LOOP_SET_FD, 3 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3707 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3708 ./strace-static-x86_64: Process 3707 attached [pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3707] setpgid(0, 0 [pid 3706] <... ioctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3706] mkdir("./file0", 0777 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3707] <... setpgid resumed>) = 0 [pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 3708 attached [pid 3708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3707] write(3, "1000", 4 [pid 3706] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3708] <... prctl resumed>) = 0 [pid 3707] <... write resumed>) = 4 [pid 3706] pipe2( [pid 3708] setpgid(0, 0 [pid 3707] close(3 [pid 3706] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3708] <... setpgid resumed>) = 0 [pid 3707] <... close resumed>) = 0 [pid 3706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3707] memfd_create("syzkaller", 0 [pid 3708] <... openat resumed>) = 3 [pid 3707] <... memfd_create resumed>) = 3 [pid 3708] write(3, "1000", 4 [pid 3707] ftruncate(3, 0 [pid 3708] <... write resumed>) = 4 [pid 3707] <... ftruncate resumed>) = 0 [pid 3708] close(3 [pid 3707] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3708] <... close resumed>) = 0 [pid 3707] <... openat resumed>) = 4 [pid 3708] memfd_create("syzkaller", 0 [pid 3707] ioctl(4, LOOP_SET_FD, 3 [pid 3708] <... memfd_create resumed>) = 3 [pid 3707] <... ioctl resumed>) = 0 [pid 3708] ftruncate(3, 0 [pid 3707] mkdir("./file0", 0777 [pid 3708] <... ftruncate resumed>) = 0 [pid 3707] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3708] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3708] <... openat resumed>) = 4 [pid 3707] pipe2( [pid 3708] ioctl(4, LOOP_SET_FD, 3 [pid 3707] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3708] <... ioctl resumed>) = 0 [pid 3707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3708] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3708] pipe2([5, 6], 0) = 0 [pid 3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3615] close(3 [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 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3709 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3710 [pid 3705] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3705] exit_group(0) = ? ./strace-static-x86_64: Process 3710 attached ./strace-static-x86_64: Process 3709 attached [pid 3705] +++ exited with 0 +++ [pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3710] <... prctl resumed>) = 0 [pid 3709] <... prctl resumed>) = 0 [pid 3706] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3706] exit_group(0) = ? [pid 3710] setpgid(0, 0 [pid 3709] setpgid(0, 0 [pid 3706] +++ exited with 0 +++ [pid 3710] <... setpgid resumed>) = 0 [pid 3709] <... setpgid resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3710] <... openat resumed>) = 3 [pid 3709] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3710] write(3, "1000", 4 [pid 3709] write(3, "1000", 4 [pid 3616] <... openat resumed>) = 3 [pid 3710] <... write resumed>) = 4 [pid 3709] <... write resumed>) = 4 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3710] close(3 [pid 3709] close(3 [pid 3710] <... close resumed>) = 0 [pid 3709] <... close resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3710] memfd_create("syzkaller", 0 [pid 3620] <... openat resumed>) = 3 [pid 3616] close(3 [pid 3709] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3710] <... memfd_create resumed>) = 3 [pid 3709] <... memfd_create resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 3710] ftruncate(3, 0 [pid 3709] ftruncate(3, 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3711 attached [pid 3710] <... ftruncate resumed>) = 0 [pid 3709] <... ftruncate resumed>) = 0 [pid 3710] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3709] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3710] <... openat resumed>) = 4 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3711 [pid 3710] ioctl(4, LOOP_SET_FD, 3 [pid 3709] <... openat resumed>) = 4 [pid 3709] ioctl(4, LOOP_SET_FD, 3 [pid 3710] <... ioctl resumed>) = 0 [pid 3709] <... ioctl resumed>) = 0 [pid 3710] mkdir("./file0", 0777 [pid 3709] mkdir("./file0", 0777 [pid 3710] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3709] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3711] <... prctl resumed>) = 0 [pid 3710] pipe2( [pid 3709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3711] setpgid(0, 0 [pid 3710] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3709] pipe2( [pid 3707] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3711] <... setpgid resumed>) = 0 [pid 3710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3709] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3707] exit_group(0 [pid 3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3711] <... openat resumed>) = 3 [pid 3711] write(3, "1000", 4) = 4 [pid 3711] close(3) = 0 [pid 3711] memfd_create("syzkaller", 0) = 3 [pid 3711] ftruncate(3, 0) = 0 [pid 3707] <... exit_group resumed>) = ? [pid 3711] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3707] +++ exited with 0 +++ [pid 3711] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3711] mkdir("./file0", 0777 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3711] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3614] <... openat resumed>) = 3 [pid 3711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3711] pipe2( [pid 3620] <... ioctl resumed>) = 0 [pid 3711] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] close(3 [pid 3711] 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, child_tidptr=0x55555661b690) = 3712 ./strace-static-x86_64: Process 3712 attached [pid 3708] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3708] exit_group(0) = ? [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3708] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3713 [pid 3712] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 3713 attached [pid 3712] setpgid(0, 0) = 0 [pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3713] setpgid(0, 0 [pid 3621] <... openat resumed>) = 3 [pid 3713] <... setpgid resumed>) = 0 [pid 3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3712] <... openat resumed>) = 3 [pid 3713] <... openat resumed>) = 3 [pid 3712] write(3, "1000", 4 [pid 3713] write(3, "1000", 4 [pid 3712] <... write resumed>) = 4 [pid 3713] <... write resumed>) = 4 [pid 3712] close(3 [pid 3713] close(3) = 0 [pid 3712] <... close resumed>) = 0 [pid 3713] memfd_create("syzkaller", 0 [pid 3712] memfd_create("syzkaller", 0 [pid 3713] <... memfd_create resumed>) = 3 [pid 3713] ftruncate(3, 0 [pid 3712] <... memfd_create resumed>) = 3 [pid 3713] <... ftruncate resumed>) = 0 [pid 3712] ftruncate(3, 0 [pid 3713] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3712] <... ftruncate resumed>) = 0 [pid 3713] <... openat resumed>) = 4 [pid 3712] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3713] ioctl(4, LOOP_SET_FD, 3 [pid 3712] <... openat resumed>) = 4 [pid 3713] <... ioctl resumed>) = 0 [pid 3712] ioctl(4, LOOP_SET_FD, 3 [pid 3713] mkdir("./file0", 0777 [pid 3712] <... ioctl resumed>) = 0 [pid 3713] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3712] mkdir("./file0", 0777 [pid 3713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3713] pipe2([5, 6], 0) = 0 [pid 3713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3712] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3709] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3712] pipe2( [pid 3709] exit_group(0 [pid 3621] <... ioctl resumed>) = 0 [pid 3712] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3709] <... exit_group resumed>) = ? [pid 3621] close(3 [pid 3712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3709] +++ exited with 0 +++ [pid 3621] <... close resumed>) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 3714 attached [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3714 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3710] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3714] <... prctl resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3714] setpgid(0, 0 [pid 3710] exit_group(0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3714] <... setpgid resumed>) = 0 [pid 3710] <... exit_group resumed>) = ? [pid 3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3710] +++ exited with 0 +++ [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 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop1", 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 3714] <... openat resumed>) = 3 [pid 3714] write(3, "1000", 4 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3715 [pid 3714] <... write resumed>) = 4 [pid 3714] close(3) = 0 [pid 3714] memfd_create("syzkaller", 0) = 3 [pid 3714] ftruncate(3, 0) = 0 [pid 3714] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3711] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 3715 attached [pid 3714] <... openat resumed>) = 4 [pid 3711] exit_group(0 [pid 3715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3714] ioctl(4, LOOP_SET_FD, 3 [pid 3715] <... prctl resumed>) = 0 [pid 3714] <... ioctl resumed>) = 0 [pid 3715] setpgid(0, 0 [pid 3714] mkdir("./file0", 0777 [pid 3715] <... setpgid resumed>) = 0 [pid 3714] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3715] <... openat resumed>) = 3 [pid 3714] pipe2( [pid 3715] write(3, "1000", 4 [pid 3714] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3715] <... write resumed>) = 4 [pid 3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3715] close(3 [pid 3711] <... exit_group resumed>) = ? [pid 3715] <... close resumed>) = 0 [pid 3715] memfd_create("syzkaller", 0) = 3 [pid 3711] +++ exited with 0 +++ [pid 3715] ftruncate(3, 0) = 0 [pid 3715] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [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 3715] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3715] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 3715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3715] pipe2([5, 6], 0) = 0 [pid 3715] 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 3716 attached [pid 3712] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] <... ioctl resumed>) = 0 [pid 3712] exit_group(0) = ? [pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3712] +++ exited with 0 +++ [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3716 [pid 3616] close(3 [pid 3716] <... prctl resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] <... close resumed>) = 0 [pid 3716] setpgid(0, 0) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3716] write(3, "1000", 4 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3717 [pid 3716] <... write resumed>) = 4 [pid 3716] close(3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3716] <... close resumed>) = 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3716] memfd_create("syzkaller", 0) = 3 [pid 3716] ftruncate(3, 0./strace-static-x86_64: Process 3717 attached ) = 0 [pid 3713] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3717] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3716] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3620] close(3 [pid 3717] <... prctl resumed>) = 0 [pid 3716] <... openat resumed>) = 4 [pid 3713] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3717] setpgid(0, 0 [pid 3716] ioctl(4, LOOP_SET_FD, 3 [pid 3713] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3717] <... setpgid resumed>) = 0 [pid 3716] <... ioctl resumed>) = 0 [pid 3713] +++ exited with 0 +++ [pid 3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3716] mkdir("./file0", 0777 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3719 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3717] <... openat resumed>) = 3 [pid 3716] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3717] write(3, "1000", 4 [pid 3716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3717] <... write resumed>) = 4 [pid 3716] pipe2( [pid 3717] close(3 [pid 3716] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3717] <... close resumed>) = 0 [pid 3716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3717] memfd_create("syzkaller", 0) = 3 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3717] ftruncate(3, 0 [pid 3614] <... openat resumed>) = 3 [pid 3717] <... ftruncate resumed>) = 0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3717] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3614] <... ioctl resumed>) = 0 [pid 3717] <... openat resumed>) = 4 [pid 3614] close(3 [pid 3717] ioctl(4, LOOP_SET_FD, 3 [pid 3614] <... close resumed>) = 0 [pid 3717] <... ioctl resumed>) = 0 [pid 3714] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3717] mkdir("./file0", 0777 [pid 3714] exit_group(0./strace-static-x86_64: Process 3719 attached [pid 3717] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3714] <... exit_group resumed>) = ? [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3720 [pid 3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3717] pipe2([5, 6], 0) = 0 [pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3719] <... prctl resumed>) = 0 [pid 3714] +++ exited with 0 +++ [pid 3719] setpgid(0, 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3720 attached [pid 3720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3720] setpgid(0, 0 [pid 3621] <... openat resumed>) = 3 [pid 3720] <... setpgid resumed>) = 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3719] <... setpgid resumed>) = 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3720] <... openat resumed>) = 3 [pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] close(3 [pid 3720] write(3, "1000", 4 [pid 3621] <... close resumed>) = 0 [pid 3720] <... write resumed>) = 4 [pid 3719] <... openat resumed>) = 3 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3721 attached [pid 3720] close(3 [pid 3719] write(3, "1000", 4 [pid 3715] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3720] <... close resumed>) = 0 [pid 3719] <... write resumed>) = 4 [pid 3721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3720] memfd_create("syzkaller", 0 [pid 3719] close(3 [pid 3715] exit_group(0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3721 [pid 3720] <... memfd_create resumed>) = 3 [pid 3720] ftruncate(3, 0 [pid 3719] <... close resumed>) = 0 [pid 3715] <... exit_group resumed>) = ? [pid 3721] <... prctl resumed>) = 0 [pid 3720] <... ftruncate resumed>) = 0 [pid 3719] memfd_create("syzkaller", 0 [pid 3715] +++ exited with 0 +++ [pid 3721] setpgid(0, 0 [pid 3719] <... memfd_create resumed>) = 3 [pid 3721] <... setpgid resumed>) = 0 [pid 3719] ftruncate(3, 0 [pid 3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3720] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3719] <... ftruncate resumed>) = 0 [pid 3721] <... openat resumed>) = 3 [pid 3720] <... openat resumed>) = 4 [pid 3719] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3721] write(3, "1000", 4 [pid 3719] <... openat resumed>) = 4 [pid 3721] <... write resumed>) = 4 [pid 3719] ioctl(4, LOOP_SET_FD, 3 [pid 3721] close(3 [pid 3719] <... ioctl resumed>) = 0 [pid 3721] <... close resumed>) = 0 [pid 3719] mkdir("./file0", 0777 [pid 3721] memfd_create("syzkaller", 0 [pid 3719] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3721] <... memfd_create resumed>) = 3 [pid 3720] ioctl(4, LOOP_SET_FD, 3 [pid 3719] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3716] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3721] ftruncate(3, 0 [pid 3720] <... ioctl resumed>) = 0 [pid 3719] pipe2( [pid 3721] <... ftruncate resumed>) = 0 [pid 3720] mkdir("./file0", 0777 [pid 3719] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3716] exit_group(0 [pid 3721] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3720] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3716] <... exit_group resumed>) = ? [pid 3721] <... openat resumed>) = 4 [pid 3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3721] ioctl(4, LOOP_SET_FD, 3 [pid 3720] pipe2( [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3721] <... ioctl resumed>) = 0 [pid 3720] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3716] +++ exited with 0 +++ [pid 3721] mkdir("./file0", 0777 [pid 3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 3721] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3721] pipe2([5, 6], 0) = 0 [pid 3717] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3717] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3717] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3717] +++ exited with 0 +++ [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] close(3 [pid 3616] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3722 ./strace-static-x86_64: Process 3722 attached [pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3616] <... ioctl resumed>) = 0 [pid 3722] <... prctl resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] close(3 [pid 3722] setpgid(0, 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... close resumed>) = 0 [pid 3722] <... setpgid resumed>) = 0 [pid 3722] 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./strace-static-x86_64: Process 3723 attached [pid 3722] <... openat resumed>) = 3 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3723 [pid 3722] write(3, "1000", 4 [pid 3723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3722] <... write resumed>) = 4 [pid 3722] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3724 [pid 3722] <... close resumed>) = 0 [pid 3722] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3724 attached [pid 3724] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3722] <... memfd_create resumed>) = 3 [pid 3723] <... prctl resumed>) = 0 [pid 3724] <... prctl resumed>) = 0 [pid 3722] ftruncate(3, 0 [pid 3724] setpgid(0, 0 [pid 3723] setpgid(0, 0 [pid 3722] <... ftruncate resumed>) = 0 [pid 3721] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3724] <... setpgid resumed>) = 0 [pid 3722] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3721] exit_group(0 [pid 3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3722] <... openat resumed>) = 4 [pid 3721] <... exit_group resumed>) = ? [pid 3724] <... openat resumed>) = 3 [pid 3722] ioctl(4, LOOP_SET_FD, 3 [pid 3721] +++ exited with 0 +++ [pid 3724] write(3, "1000", 4 [pid 3722] <... ioctl resumed>) = 0 [pid 3724] <... write resumed>) = 4 [pid 3722] mkdir("./file0", 0777 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3724] close(3 [pid 3722] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3724] <... close resumed>) = 0 [pid 3722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] <... openat resumed>) = 3 [pid 3724] memfd_create("syzkaller", 0 [pid 3723] <... setpgid resumed>) = 0 [pid 3722] pipe2( [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3724] <... memfd_create resumed>) = 3 [pid 3722] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3724] ftruncate(3, 0 [pid 3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] close(3 [pid 3724] <... ftruncate resumed>) = 0 [pid 3723] <... openat resumed>) = 3 [pid 3621] <... close resumed>) = 0 [pid 3724] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3723] write(3, "1000", 4 [pid 3724] <... openat resumed>) = 4 [pid 3723] <... write resumed>) = 4 [pid 3724] ioctl(4, LOOP_SET_FD, 3 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3725 [pid 3724] <... ioctl resumed>) = 0 [pid 3723] close(3 [pid 3724] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3723] <... close resumed>) = 0 [pid 3724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3723] memfd_create("syzkaller", 0 [pid 3724] pipe2([5, 6], 0) = 0 [pid 3723] <... memfd_create resumed>) = 3 [pid 3724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3723] ftruncate(3, 0./strace-static-x86_64: Process 3725 attached [pid 3720] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3720] exit_group(0 [pid 3725] <... prctl resumed>) = 0 [pid 3720] <... exit_group resumed>) = ? [pid 3725] setpgid(0, 0 [pid 3720] +++ exited with 0 +++ [pid 3725] <... setpgid resumed>) = 0 [pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3725] write(3, "1000", 4) = 4 [pid 3725] close(3) = 0 [pid 3725] memfd_create("syzkaller", 0) = 3 [pid 3725] ftruncate(3, 0) = 0 [pid 3723] <... ftruncate resumed>) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3725] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3723] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3725] <... openat resumed>) = 4 [pid 3723] ioctl(4, LOOP_SET_FD, 3 [pid 3725] ioctl(4, LOOP_SET_FD, 3 [pid 3723] <... ioctl resumed>) = 0 [pid 3725] <... ioctl resumed>) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3725] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3723] mkdir("./file0", 0777 [pid 3725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3723] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3614] <... openat resumed>) = 3 [pid 3725] pipe2( [pid 3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3725] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3723] pipe2( [pid 3725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3723] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3719] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3719] exit_group(0) = ? [pid 3719] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3726 ./strace-static-x86_64: Process 3726 attached [pid 3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3726] setpgid(0, 0) = 0 [pid 3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3726] write(3, "1000", 4) = 4 [pid 3726] close(3) = 0 [pid 3726] memfd_create("syzkaller", 0) = 3 [pid 3726] ftruncate(3, 0) = 0 [pid 3726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3620] <... ioctl resumed>) = 0 [pid 3726] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3620] close(3 [pid 3726] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3620] <... close resumed>) = 0 [pid 3726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3726] pipe2([5, 6], 0) = 0 [pid 3726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3722] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3722] exit_group(0) = ? [pid 3722] +++ exited with 0 +++ ./strace-static-x86_64: Process 3727 attached [pid 3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3727] setpgid(0, 0) = 0 [pid 3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3727] write(3, "1000", 4) = 4 [pid 3727] close(3) = 0 [pid 3727] memfd_create("syzkaller", 0) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3727 [pid 3727] ftruncate(3, 0) = 0 [pid 3727] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3727] <... openat resumed>) = 4 [pid 3615] <... openat resumed>) = 3 [pid 3727] ioctl(4, LOOP_SET_FD, 3 [pid 3724] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3727] <... ioctl resumed>) = 0 [pid 3724] exit_group(0 [pid 3727] mkdir("./file0", 0777 [pid 3724] <... exit_group resumed>) = ? [pid 3727] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3724] +++ exited with 0 +++ [pid 3727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3727] pipe2( [pid 3723] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3727] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3725] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3723] exit_group(0 [pid 3725] exit_group(0 [pid 3723] <... exit_group resumed>) = ? [pid 3725] <... exit_group resumed>) = ? [pid 3723] +++ exited with 0 +++ [pid 3615] <... ioctl resumed>) = 0 [pid 3725] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] close(3 [pid 3616] <... openat resumed>) = 3 [pid 3615] <... close resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] <... openat resumed>) = 3 [pid 3726] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3726] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3728 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3726] <... exit_group resumed>) = ? [pid 3726] +++ exited with 0 +++ ./strace-static-x86_64: Process 3728 attached [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3726, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3728] setpgid(0, 0) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3729 [pid 3728] <... openat resumed>) = 3 [pid 3728] write(3, "1000", 4) = 4 [pid 3728] close(3) = 0 [pid 3727] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3728] memfd_create("syzkaller", 0) = 3 [pid 3728] ftruncate(3, 0 [pid 3727] exit_group(0 [pid 3728] <... ftruncate resumed>) = 0 [pid 3728] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3729 attached ) = 4 [pid 3727] <... exit_group resumed>) = ? [pid 3729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3728] ioctl(4, LOOP_SET_FD, 3 [pid 3729] <... prctl resumed>) = 0 [pid 3729] setpgid(0, 0 [pid 3728] <... ioctl resumed>) = 0 [pid 3727] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3729] <... setpgid resumed>) = 0 [pid 3728] mkdir("./file0", 0777 [pid 3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3728] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3729] <... openat resumed>) = 3 [pid 3728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] <... ioctl resumed>) = 0 [pid 3729] write(3, "1000", 4 [pid 3728] pipe2( [pid 3621] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3729] <... write resumed>) = 4 [pid 3728] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] close(3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] close(3 [pid 3616] <... close resumed>) = 0 [pid 3729] close(3 [pid 3728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3729] <... close resumed>) = 0 [pid 3621] 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 3729] memfd_create("syzkaller", 0 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3730 [pid 3729] <... memfd_create resumed>) = 3 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3731 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3732 [pid 3729] ftruncate(3, 0) = 0 [pid 3729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3729] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3729] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3729] pipe2(./strace-static-x86_64: Process 3731 attached [5, 6], 0) = 0 [pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3731] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 3732 attached ./strace-static-x86_64: Process 3730 attached [pid 3731] setpgid(0, 0) = 0 [pid 3730] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3732] <... prctl resumed>) = 0 [pid 3731] <... openat resumed>) = 3 [pid 3730] <... prctl resumed>) = 0 [pid 3731] write(3, "1000", 4 [pid 3732] setpgid(0, 0 [pid 3731] <... write resumed>) = 4 [pid 3730] setpgid(0, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3731] close(3 [pid 3620] close(3 [pid 3731] <... close resumed>) = 0 [pid 3620] <... close resumed>) = 0 [pid 3731] memfd_create("syzkaller", 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3731] <... memfd_create resumed>) = 3 [pid 3731] ftruncate(3, 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3733 [pid 3731] <... ftruncate resumed>) = 0 [pid 3731] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3731] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3731] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3733 attached [pid 3731] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3732] <... setpgid resumed>) = 0 [pid 3731] pipe2( [pid 3730] <... setpgid resumed>) = 0 [pid 3733] <... prctl resumed>) = 0 [pid 3731] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3733] setpgid(0, 0 [pid 3731] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3730] <... openat resumed>) = 3 [pid 3733] <... setpgid resumed>) = 0 [pid 3732] <... openat resumed>) = 3 [pid 3730] write(3, "1000", 4 [pid 3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3732] write(3, "1000", 4 [pid 3730] <... write resumed>) = 4 [pid 3733] <... openat resumed>) = 3 [pid 3732] <... write resumed>) = 4 [pid 3730] close(3 [pid 3733] write(3, "1000", 4 [pid 3732] close(3 [pid 3730] <... close resumed>) = 0 [pid 3733] <... write resumed>) = 4 [pid 3733] close(3 [pid 3732] <... close resumed>) = 0 [pid 3730] memfd_create("syzkaller", 0 [pid 3733] <... close resumed>) = 0 [pid 3732] memfd_create("syzkaller", 0 [pid 3730] <... memfd_create resumed>) = 3 [pid 3733] memfd_create("syzkaller", 0 [pid 3732] <... memfd_create resumed>) = 3 [pid 3730] ftruncate(3, 0 [pid 3733] <... memfd_create resumed>) = 3 [pid 3732] ftruncate(3, 0 [pid 3730] <... ftruncate resumed>) = 0 [pid 3728] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3733] ftruncate(3, 0 [pid 3732] <... ftruncate resumed>) = 0 [pid 3730] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3728] exit_group(0 [pid 3732] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3730] <... openat resumed>) = 4 [pid 3728] <... exit_group resumed>) = ? [pid 3733] <... ftruncate resumed>) = 0 [pid 3732] <... openat resumed>) = 4 [pid 3730] ioctl(4, LOOP_SET_FD, 3 [pid 3728] +++ exited with 0 +++ [pid 3733] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3732] ioctl(4, LOOP_SET_FD, 3 [pid 3730] <... ioctl resumed>) = 0 [pid 3733] <... openat resumed>) = 4 [pid 3732] <... ioctl resumed>) = 0 [pid 3730] mkdir("./file0", 0777 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3733] ioctl(4, LOOP_SET_FD, 3 [pid 3732] mkdir("./file0", 0777 [pid 3730] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3733] <... ioctl resumed>) = 0 [pid 3732] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3730] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3733] mkdir("./file0", 0777 [pid 3732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3730] pipe2( [pid 3733] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3732] pipe2( [pid 3730] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3732] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3730] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3733] pipe2( [pid 3732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3733] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3729] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... openat resumed>) = 3 [pid 3729] exit_group(0) = ? [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3729] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3615] close(3) = 0 [pid 3614] close(3 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] <... close resumed>) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3734 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3735 ./strace-static-x86_64: Process 3735 attached ./strace-static-x86_64: Process 3734 attached [pid 3731] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3731] exit_group(0 [pid 3735] <... prctl resumed>) = 0 [pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3735] setpgid(0, 0 [pid 3734] <... prctl resumed>) = 0 [pid 3731] <... exit_group resumed>) = ? [pid 3735] <... setpgid resumed>) = 0 [pid 3734] setpgid(0, 0 [pid 3731] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3734] <... setpgid resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3735] <... openat resumed>) = 3 [pid 3735] write(3, "1000", 4 [pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] <... openat resumed>) = 3 [pid 3735] <... write resumed>) = 4 [pid 3735] close(3 [pid 3734] <... openat resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3735] <... close resumed>) = 0 [pid 3734] write(3, "1000", 4 [pid 3735] memfd_create("syzkaller", 0 [pid 3734] <... write resumed>) = 4 [pid 3735] <... memfd_create resumed>) = 3 [pid 3735] ftruncate(3, 0 [pid 3734] close(3 [pid 3735] <... ftruncate resumed>) = 0 [pid 3734] <... close resumed>) = 0 [pid 3735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3734] memfd_create("syzkaller", 0 [pid 3732] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3735] ioctl(4, LOOP_SET_FD, 3 [pid 3734] <... memfd_create resumed>) = 3 [pid 3732] exit_group(0 [pid 3735] <... ioctl resumed>) = 0 [pid 3734] ftruncate(3, 0 [pid 3732] <... exit_group resumed>) = ? [pid 3735] mkdir("./file0", 0777 [pid 3734] <... ftruncate resumed>) = 0 [pid 3735] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3734] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3732] +++ exited with 0 +++ [pid 3730] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] <... ioctl resumed>) = 0 [pid 3734] <... openat resumed>) = 4 [pid 3730] exit_group(0 [pid 3735] pipe2( [pid 3734] ioctl(4, LOOP_SET_FD, 3 [pid 3621] close(3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3735] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3734] <... ioctl resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3734] mkdir("./file0", 0777 [pid 3621] <... close resumed>) = 0 [pid 3730] <... exit_group resumed>) = ? [pid 3617] <... restart_syscall resumed>) = 0 [pid 3734] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3730] +++ exited with 0 +++ [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3734] pipe2(./strace-static-x86_64: Process 3736 attached [5, 6], 0) = 0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3736 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3733] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... openat resumed>) = 3 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3736] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3733] exit_group(0 [pid 3617] close(3 [pid 3733] <... exit_group resumed>) = ? [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3736] <... prctl resumed>) = 0 [pid 3736] setpgid(0, 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3737 [pid 3736] <... setpgid resumed>) = 0 [pid 3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3733] +++ exited with 0 +++ ./strace-static-x86_64: Process 3737 attached [pid 3736] write(3, "1000", 4) = 4 [pid 3736] close(3) = 0 [pid 3736] memfd_create("syzkaller", 0) = 3 [pid 3736] ftruncate(3, 0) = 0 [pid 3736] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3736] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3736] mkdir("./file0", 0777 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3737] <... prctl resumed>) = 0 [pid 3736] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3737] setpgid(0, 0 [pid 3736] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3737] <... setpgid resumed>) = 0 [pid 3736] pipe2( [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3736] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3737] <... openat resumed>) = 3 [pid 3736] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3616] close(3 [pid 3737] write(3, "1000", 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] <... close resumed>) = 0 [pid 3737] <... write resumed>) = 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3737] close(3) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3738 [pid 3737] memfd_create("syzkaller", 0) = 3 [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 ./strace-static-x86_64: Process 3738 attached [pid 3737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3738] setpgid(0, 0 [pid 3734] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3734] exit_group(0) = ? [pid 3734] +++ exited with 0 +++ [pid 3620] <... ioctl resumed>) = 0 [pid 3738] <... setpgid resumed>) = 0 [pid 3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3738] write(3, "1000", 4) = 4 [pid 3738] close(3) = 0 [pid 3738] memfd_create("syzkaller", 0) = 3 [pid 3738] ftruncate(3, 0) = 0 [pid 3620] close(3) = 0 [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 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3738] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3615] <... openat resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3739 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3738] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3738] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 3739 attached [pid 3738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3738] pipe2( [pid 3739] <... prctl resumed>) = 0 [pid 3738] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3739] setpgid(0, 0 [pid 3738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3739] <... setpgid resumed>) = 0 [pid 3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3739] write(3, "1000", 4) = 4 [pid 3739] close(3) = 0 [pid 3739] memfd_create("syzkaller", 0) = 3 [pid 3739] ftruncate(3, 0) = 0 [pid 3739] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3735] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3739] <... openat resumed>) = 4 [pid 3739] ioctl(4, LOOP_SET_FD, 3 [pid 3735] exit_group(0 [pid 3739] <... ioctl resumed>) = 0 [pid 3739] mkdir("./file0", 0777 [pid 3735] <... exit_group resumed>) = ? [pid 3739] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3739] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3739] pipe2([5, 6], 0) = 0 [pid 3735] +++ exited with 0 +++ [pid 3739] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3615] <... ioctl resumed>) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3740 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3740 attached ) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [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 3740] memfd_create("syzkaller", 0) = 3 [pid 3740] ftruncate(3, 0) = 0 [pid 3740] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3740] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3740] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3740] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3740] pipe2([5, 6], 0) = 0 [pid 3740] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3737] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3737] exit_group(0) = ? [pid 3737] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3736] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3736] exit_group(0 [pid 3614] close(3 [pid 3736] <... exit_group resumed>) = ? [pid 3614] <... close resumed>) = 0 [pid 3736] +++ exited with 0 +++ [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3741 [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3741 attached [pid 3741] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3738] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3738] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3738] <... exit_group resumed>) = ? [pid 3741] <... prctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3742 [pid 3738] +++ exited with 0 +++ [pid 3616] --- 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] restart_syscall(<... resuming interrupted clone ...> [pid 3741] setpgid(0, 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3741] <... setpgid resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3741] <... openat resumed>) = 3 [pid 3741] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 3742 attached [pid 3741] close(3 [pid 3742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3741] <... close resumed>) = 0 [pid 3742] <... prctl resumed>) = 0 [pid 3742] setpgid(0, 0 [pid 3741] memfd_create("syzkaller", 0 [pid 3742] <... setpgid resumed>) = 0 [pid 3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3741] <... memfd_create resumed>) = 3 [pid 3742] <... openat resumed>) = 3 [pid 3742] write(3, "1000", 4) = 4 [pid 3742] close(3) = 0 [pid 3742] memfd_create("syzkaller", 0) = 3 [pid 3742] ftruncate(3, 0) = 0 [pid 3742] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3742] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3742] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3742] pipe2([5, 6], 0) = 0 [pid 3742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3741] ftruncate(3, 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3740] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] close(3 [pid 3616] close(3 [pid 3740] exit_group(0 [pid 3621] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3740] <... exit_group resumed>) = ? [pid 3621] 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 3740] +++ exited with 0 +++ [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3743 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3744 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3741] <... ftruncate resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3741] ioctl(4, LOOP_SET_FD, 3 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3741] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3741] mkdir("./file0", 0777 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3741] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3741] pipe2(./strace-static-x86_64: Process 3744 attached [5, 6], 0) = 0 [pid 3744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3744] <... prctl resumed>) = 0 [pid 3744] setpgid(0, 0) = 0 [pid 3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3744] write(3, "1000", 4) = 4 [pid 3744] close(3) = 0 [pid 3744] memfd_create("syzkaller", 0) = 3 [pid 3744] ftruncate(3, 0) = 0 ./strace-static-x86_64: Process 3743 attached [pid 3744] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3739] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3744] <... openat resumed>) = 4 [pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3739] exit_group(0 [pid 3744] ioctl(4, LOOP_SET_FD, 3 [pid 3743] <... prctl resumed>) = 0 [pid 3744] <... ioctl resumed>) = 0 [pid 3743] setpgid(0, 0 [pid 3739] <... exit_group resumed>) = ? [pid 3744] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3744] pipe2( [pid 3743] <... setpgid resumed>) = 0 [pid 3739] +++ exited with 0 +++ [pid 3744] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... ioctl resumed>) = 0 [pid 3744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3743] <... openat resumed>) = 3 [pid 3615] close(3 [pid 3743] write(3, "1000", 4 [pid 3615] <... close resumed>) = 0 [pid 3743] <... write resumed>) = 4 [pid 3742] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3743] close(3 [pid 3742] exit_group(0 [pid 3620] <... openat resumed>) = 3 [pid 3743] <... close resumed>) = 0 [pid 3742] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3745 attached [pid 3743] memfd_create("syzkaller", 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3745 [pid 3743] <... memfd_create resumed>) = 3 [pid 3743] ftruncate(3, 0 [pid 3742] +++ exited with 0 +++ [pid 3743] <... ftruncate resumed>) = 0 [pid 3745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3743] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3745] <... prctl resumed>) = 0 [pid 3743] <... openat resumed>) = 4 [pid 3617] --- 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] setpgid(0, 0 [pid 3743] ioctl(4, LOOP_SET_FD, 3 [pid 3745] <... setpgid resumed>) = 0 [pid 3743] <... ioctl resumed>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3743] mkdir("./file0", 0777 [pid 3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3743] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] <... openat resumed>) = 3 [pid 3745] <... openat resumed>) = 3 [pid 3743] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3745] write(3, "1000", 4 [pid 3743] pipe2( [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3745] <... write resumed>) = 4 [pid 3743] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3745] close(3 [pid 3743] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3745] <... close resumed>) = 0 [pid 3745] memfd_create("syzkaller", 0 [pid 3741] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3741] exit_group(0) = ? [pid 3741] +++ exited with 0 +++ [pid 3620] close(3) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3746 [pid 3614] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3746 attached [pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3746] setpgid(0, 0) = 0 [pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3746] write(3, "1000", 4) = 4 [pid 3746] close(3) = 0 [pid 3745] <... memfd_create resumed>) = 3 [pid 3746] memfd_create("syzkaller", 0 [pid 3745] ftruncate(3, 0) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3746] <... memfd_create resumed>) = 3 [pid 3746] ftruncate(3, 0) = 0 [pid 3746] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3746] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3746] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3746] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3746] pipe2([5, 6], 0) = 0 [pid 3746] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] close(3) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] close(3 [pid 3745] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3747 [pid 3614] <... close resumed>) = 0 [pid 3745] <... openat resumed>) = 4 [pid 3745] ioctl(4, LOOP_SET_FD, 3 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3745] <... ioctl resumed>) = 0 [pid 3745] mkdir("./file0", 0777 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3748 ./strace-static-x86_64: Process 3748 attached [pid 3745] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3745] pipe2([5, 6], 0) = 0 [pid 3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3748] setpgid(0, 0 [pid 3743] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3743] exit_group(0) = ? [pid 3748] <... setpgid resumed>) = 0 [pid 3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3743] +++ exited with 0 +++ ./strace-static-x86_64: Process 3747 attached [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3748] <... openat resumed>) = 3 [pid 3747] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3748] write(3, "1000", 4) = 4 [pid 3747] <... prctl resumed>) = 0 [pid 3744] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3747] setpgid(0, 0 [pid 3744] exit_group(0 [pid 3747] <... setpgid resumed>) = 0 [pid 3744] <... exit_group resumed>) = ? [pid 3748] close(3 [pid 3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3744] +++ exited with 0 +++ [pid 3747] <... openat resumed>) = 3 [pid 3747] write(3, "1000", 4) = 4 [pid 3747] close(3) = 0 [pid 3747] memfd_create("syzkaller", 0) = 3 [pid 3747] ftruncate(3, 0) = 0 [pid 3747] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3747] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3747] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3748] <... close resumed>) = 0 [pid 3747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3747] pipe2( [pid 3748] memfd_create("syzkaller", 0 [pid 3747] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3748] <... memfd_create resumed>) = 3 [pid 3748] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3748] <... ftruncate resumed>) = 0 [pid 3748] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3748] <... openat resumed>) = 4 [pid 3746] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3748] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3748] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3748] pipe2( [pid 3746] exit_group(0 [pid 3748] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3746] <... exit_group resumed>) = ? [pid 3748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3746] +++ exited with 0 +++ [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3745] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] <... close resumed>) = 0 [pid 3745] exit_group(0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3749 attached [pid 3745] <... exit_group resumed>) = ? [pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3745] +++ exited with 0 +++ [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3749 [pid 3749] <... prctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3749] setpgid(0, 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3749] <... setpgid resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3749] <... openat resumed>) = 3 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... openat resumed>) = 3 [pid 3749] write(3, "1000", 4 [pid 3616] close(3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3749] <... write resumed>) = 4 [pid 3616] <... close resumed>) = 0 [pid 3749] close(3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3749] <... close resumed>) = 0 [pid 3749] memfd_create("syzkaller", 0) = 3 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3750 [pid 3749] ftruncate(3, 0) = 0 [pid 3749] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 ./strace-static-x86_64: Process 3750 attached [pid 3749] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3750] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3749] mkdir("./file0", 0777 [pid 3747] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3750] <... prctl resumed>) = 0 [pid 3747] exit_group(0 [pid 3750] setpgid(0, 0 [pid 3747] <... exit_group resumed>) = ? [pid 3750] <... setpgid resumed>) = 0 [pid 3747] +++ exited with 0 +++ [pid 3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3749] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3750] <... openat resumed>) = 3 [pid 3749] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3750] write(3, "1000", 4 [pid 3749] pipe2( [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3750] <... write resumed>) = 4 [pid 3749] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3750] close(3 [pid 3749] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3750] <... close resumed>) = 0 [pid 3750] memfd_create("syzkaller", 0) = 3 [pid 3750] ftruncate(3, 0) = 0 [pid 3750] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3750] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3750] mkdir("./file0", 0777 [pid 3620] close(3 [pid 3617] <... close resumed>) = 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] <... ioctl resumed>) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3752 [pid 3615] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3751 [pid 3750] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3753 [pid 3750] pipe2([5, 6], 0) = 0 [pid 3750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3753 attached ./strace-static-x86_64: Process 3751 attached ./strace-static-x86_64: Process 3752 attached [pid 3753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3753] <... prctl resumed>) = 0 [pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3753] setpgid(0, 0 [pid 3751] <... prctl resumed>) = 0 [pid 3753] <... setpgid resumed>) = 0 [pid 3751] setpgid(0, 0) = 0 [pid 3752] <... prctl resumed>) = 0 [pid 3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3753] <... openat resumed>) = 3 [pid 3752] setpgid(0, 0 [pid 3753] write(3, "1000", 4 [pid 3751] <... openat resumed>) = 3 [pid 3752] <... setpgid resumed>) = 0 [pid 3751] write(3, "1000", 4 [pid 3753] <... write resumed>) = 4 [pid 3751] <... write resumed>) = 4 [pid 3753] close(3 [pid 3751] close(3 [pid 3753] <... close resumed>) = 0 [pid 3751] <... close resumed>) = 0 [pid 3753] memfd_create("syzkaller", 0 [pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3751] memfd_create("syzkaller", 0 [pid 3753] <... memfd_create resumed>) = 3 [pid 3752] <... openat resumed>) = 3 [pid 3751] <... memfd_create resumed>) = 3 [pid 3753] ftruncate(3, 0 [pid 3752] write(3, "1000", 4 [pid 3751] ftruncate(3, 0 [pid 3748] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3753] <... ftruncate resumed>) = 0 [pid 3752] <... write resumed>) = 4 [pid 3751] <... ftruncate resumed>) = 0 [pid 3748] exit_group(0 [pid 3753] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3752] close(3 [pid 3751] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3749] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3748] <... exit_group resumed>) = ? [pid 3753] <... openat resumed>) = 4 [pid 3752] <... close resumed>) = 0 [pid 3751] <... openat resumed>) = 4 [pid 3749] exit_group(0 [pid 3753] ioctl(4, LOOP_SET_FD, 3 [pid 3752] memfd_create("syzkaller", 0 [pid 3751] ioctl(4, LOOP_SET_FD, 3 [pid 3749] <... exit_group resumed>) = ? [pid 3748] +++ exited with 0 +++ [pid 3753] <... ioctl resumed>) = 0 [pid 3752] <... memfd_create resumed>) = 3 [pid 3751] <... ioctl resumed>) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3753] mkdir("./file0", 0777 [pid 3752] ftruncate(3, 0 [pid 3751] mkdir("./file0", 0777 [pid 3749] +++ exited with 0 +++ [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3753] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3752] <... ftruncate resumed>) = 0 [pid 3751] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3614] <... restart_syscall resumed>) = 0 [pid 3753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3752] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3751] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3753] pipe2( [pid 3752] <... openat resumed>) = 4 [pid 3751] pipe2( [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3753] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3752] ioctl(4, LOOP_SET_FD, 3 [pid 3751] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] <... openat resumed>) = 3 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3752] <... ioctl resumed>) = 0 [pid 3751] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3614] <... openat resumed>) = 3 [pid 3752] mkdir("./file0", 0777 [pid 3750] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3752] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3750] exit_group(0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3752] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3750] <... exit_group resumed>) = ? [pid 3752] pipe2( [pid 3750] +++ exited with 0 +++ [pid 3616] --- 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] restart_syscall(<... resuming interrupted clone ...> [pid 3752] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3752] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3753] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3753] exit_group(0) = ? [pid 3621] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3614] close(3 [pid 3621] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3754 [pid 3753] +++ exited with 0 +++ [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3755 ./strace-static-x86_64: Process 3754 attached [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] openat(AT_FDCWD, "/dev/loop1", 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=0x55555661b690) = 3756 [pid 3751] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3751] exit_group(0) = ? [pid 3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3751] +++ exited with 0 +++ [pid 3754] setpgid(0, 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3754] <... setpgid resumed>) = 0 [pid 3617] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3756 attached [pid 3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] <... restart_syscall resumed>) = 0 [pid 3756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3754] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3755 attached [pid 3756] <... prctl resumed>) = 0 [pid 3754] write(3, "1000", 4 [pid 3752] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3756] setpgid(0, 0 [pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3754] <... write resumed>) = 4 [pid 3752] exit_group(0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3756] <... setpgid resumed>) = 0 [pid 3755] <... prctl resumed>) = 0 [pid 3754] close(3 [pid 3752] <... exit_group resumed>) = ? [pid 3617] <... openat resumed>) = 3 [pid 3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3755] setpgid(0, 0 [pid 3754] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3756] <... openat resumed>) = 3 [pid 3755] <... setpgid resumed>) = 0 [pid 3754] memfd_create("syzkaller", 0 [pid 3756] write(3, "1000", 4 [pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3754] <... memfd_create resumed>) = 3 [pid 3752] +++ exited with 0 +++ [pid 3756] <... write resumed>) = 4 [pid 3755] <... openat resumed>) = 3 [pid 3754] ftruncate(3, 0 [pid 3755] write(3, "1000", 4 [pid 3754] <... ftruncate resumed>) = 0 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3756] close(3 [pid 3755] <... write resumed>) = 4 [pid 3754] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3756] <... close resumed>) = 0 [pid 3755] close(3 [pid 3754] <... openat resumed>) = 4 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3755] <... close resumed>) = 0 [pid 3754] ioctl(4, LOOP_SET_FD, 3 [pid 3615] close(3 [pid 3756] memfd_create("syzkaller", 0 [pid 3755] memfd_create("syzkaller", 0 [pid 3615] <... close resumed>) = 0 [pid 3756] <... memfd_create resumed>) = 3 [pid 3755] <... memfd_create resumed>) = 3 [pid 3754] <... ioctl resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3757 attached [pid 3756] ftruncate(3, 0 [pid 3755] ftruncate(3, 0 [pid 3754] mkdir("./file0", 0777 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3756] <... ftruncate resumed>) = 0 [pid 3755] <... ftruncate resumed>) = 0 [pid 3754] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3757 [pid 3756] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3755] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... openat resumed>) = 3 [pid 3756] <... openat resumed>) = 4 [pid 3755] <... openat resumed>) = 4 [pid 3754] pipe2( [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3756] ioctl(4, LOOP_SET_FD, 3 [pid 3755] ioctl(4, LOOP_SET_FD, 3 [pid 3754] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3756] <... ioctl resumed>) = 0 [pid 3755] <... ioctl resumed>) = 0 [pid 3754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3756] mkdir("./file0", 0777 [pid 3755] mkdir("./file0", 0777 [pid 3756] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3755] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3755] pipe2( [pid 3756] pipe2( [pid 3755] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3756] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3757] setpgid(0, 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3757] <... setpgid resumed>) = 0 [pid 3754] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] close(3 [pid 3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3754] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3757] <... openat resumed>) = 3 [pid 3754] <... exit_group resumed>) = ? [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3757] write(3, "1000", 4) = 4 [pid 3757] close(3 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3758 [pid 3757] <... close resumed>) = 0 [pid 3757] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3758 attached ) = 3 [pid 3754] +++ exited with 0 +++ [pid 3757] ftruncate(3, 0) = 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3757] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3758] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3757] <... openat resumed>) = 4 [pid 3621] <... restart_syscall resumed>) = 0 [pid 3758] <... prctl resumed>) = 0 [pid 3757] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... ioctl resumed>) = 0 [pid 3758] setpgid(0, 0 [pid 3757] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3758] <... setpgid resumed>) = 0 [pid 3757] mkdir("./file0", 0777 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3620] <... close resumed>) = 0 [pid 3757] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] <... openat resumed>) = 3 [pid 3757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3759 attached [pid 3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3757] pipe2( [pid 3758] <... openat resumed>) = 3 [pid 3757] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3759 [pid 3758] write(3, "1000", 4 [pid 3757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3758] <... write resumed>) = 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/loop3", O_RDWR [pid 3759] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3758] <... openat resumed>) = 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 3759] <... prctl resumed>) = 0 [pid 3758] pipe2( [pid 3755] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3755] exit_group(0) = ? [pid 3755] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3758] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] <... openat resumed>) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3759] setpgid(0, 0) = 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3760 [pid 3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3759] write(3, "1000", 4./strace-static-x86_64: Process 3760 attached [pid 3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3760] setpgid(0, 0) = 0 [pid 3759] <... write resumed>) = 4 [pid 3759] close(3 [pid 3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3759] <... close resumed>) = 0 [pid 3760] <... openat resumed>) = 3 [pid 3759] memfd_create("syzkaller", 0 [pid 3760] write(3, "1000", 4 [pid 3759] <... memfd_create resumed>) = 3 [pid 3760] <... write resumed>) = 4 [pid 3759] ftruncate(3, 0 [pid 3760] close(3 [pid 3759] <... ftruncate resumed>) = 0 [pid 3760] <... close resumed>) = 0 [pid 3759] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3760] memfd_create("syzkaller", 0 [pid 3759] <... openat resumed>) = 4 [pid 3760] <... memfd_create resumed>) = 3 [pid 3759] ioctl(4, LOOP_SET_FD, 3 [pid 3760] ftruncate(3, 0 [pid 3759] <... ioctl resumed>) = 0 [pid 3760] <... ftruncate resumed>) = 0 [pid 3759] mkdir("./file0", 0777 [pid 3760] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3759] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3760] <... openat resumed>) = 4 [pid 3759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3760] ioctl(4, LOOP_SET_FD, 3 [pid 3759] pipe2( [pid 3760] <... ioctl resumed>) = 0 [pid 3759] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3760] mkdir("./file0", 0777 [pid 3759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3760] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3756] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3760] pipe2([5, 6], 0) = 0 [pid 3760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3756] exit_group(0) = ? [pid 3756] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3757] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3757] exit_group(0 [pid 3616] <... ioctl resumed>) = 0 [pid 3614] close(3 [pid 3616] close(3) = 0 [pid 3614] <... close resumed>) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3757] <... exit_group resumed>) = ? [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3761 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3762 ./strace-static-x86_64: Process 3761 attached [pid 3758] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3757] +++ exited with 0 +++ [pid 3761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3758] exit_group(0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3758] <... exit_group resumed>) = ? [pid 3759] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3759] exit_group(0) = ? [pid 3759] +++ exited with 0 +++ [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3759, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] <... openat resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3762 attached [pid 3762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3762] <... prctl resumed>) = 0 [pid 3762] setpgid(0, 0) = 0 [pid 3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3758] +++ exited with 0 +++ [pid 3617] --- 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] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3762] <... write resumed>) = 4 [pid 3762] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3762] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3762] memfd_create("syzkaller", 0) = 3 [pid 3762] ftruncate(3, 0) = 0 [pid 3762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3762] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3761] <... prctl resumed>) = 0 [pid 3762] mkdir("./file0", 0777 [pid 3761] setpgid(0, 0 [pid 3762] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3761] <... setpgid resumed>) = 0 [pid 3762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3762] pipe2([5, 6], 0) = 0 [pid 3762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [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/loop2", 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] close(3 [pid 3620] <... close resumed>) = 0 [pid 3620] 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 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3763 [pid 3615] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3764 [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3765 ./strace-static-x86_64: Process 3765 attached ./strace-static-x86_64: Process 3763 attached [pid 3760] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3760] exit_group(0) = ? [pid 3763] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3762] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3760] +++ exited with 0 +++ [pid 3765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3763] <... prctl resumed>) = 0 [pid 3762] exit_group(0 [pid 3621] --- 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 3763] setpgid(0, 0 [pid 3762] <... exit_group resumed>) = ? [pid 3765] setpgid(0, 0 [pid 3763] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 3764 attached [pid 3765] <... setpgid resumed>) = 0 [pid 3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3762] +++ exited with 0 +++ [pid 3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3763] <... openat resumed>) = 3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3762, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3765] <... openat resumed>) = 3 [pid 3763] write(3, "1000", 4 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3765] write(3, "1000", 4 [pid 3764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3763] <... write resumed>) = 4 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3614] <... restart_syscall resumed>) = 0 [pid 3765] <... write resumed>) = 4 [pid 3764] <... prctl resumed>) = 0 [pid 3763] close(3 [pid 3761] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] <... openat resumed>) = 3 [pid 3765] close(3 [pid 3764] setpgid(0, 0 [pid 3763] <... close resumed>) = 0 [pid 3761] exit_group(0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3765] <... close resumed>) = 0 [pid 3764] <... setpgid resumed>) = 0 [pid 3763] memfd_create("syzkaller", 0 [pid 3761] <... exit_group resumed>) = ? [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3765] memfd_create("syzkaller", 0 [pid 3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3763] <... memfd_create resumed>) = 3 [pid 3761] +++ exited with 0 +++ [pid 3614] <... openat resumed>) = 3 [pid 3765] <... memfd_create resumed>) = 3 [pid 3764] <... openat resumed>) = 3 [pid 3763] ftruncate(3, 0 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3765] ftruncate(3, 0 [pid 3764] write(3, "1000", 4 [pid 3763] <... ftruncate resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3765] <... ftruncate resumed>) = 0 [pid 3764] <... write resumed>) = 4 [pid 3763] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3765] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3764] close(3 [pid 3763] <... openat resumed>) = 4 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3765] <... openat resumed>) = 4 [pid 3764] <... close resumed>) = 0 [pid 3763] ioctl(4, LOOP_SET_FD, 3 [pid 3765] ioctl(4, LOOP_SET_FD, 3 [pid 3764] memfd_create("syzkaller", 0 [pid 3763] <... ioctl resumed>) = 0 [pid 3765] <... ioctl resumed>) = 0 [pid 3764] <... memfd_create resumed>) = 3 [pid 3763] mkdir("./file0", 0777 [pid 3765] mkdir("./file0", 0777 [pid 3764] ftruncate(3, 0 [pid 3763] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3765] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3764] <... ftruncate resumed>) = 0 [pid 3763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3764] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3763] pipe2( [pid 3616] <... openat resumed>) = 3 [pid 3765] pipe2( [pid 3764] <... openat resumed>) = 4 [pid 3763] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3765] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3764] ioctl(4, LOOP_SET_FD, 3 [pid 3763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3764] <... ioctl resumed>) = 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3764] mkdir("./file0", 0777 [pid 3621] close(3 [pid 3764] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] <... close resumed>) = 0 [pid 3764] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3764] pipe2([5, 6], 0) = 0 [pid 3764] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3766 ./strace-static-x86_64: Process 3766 attached [pid 3766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3766] setpgid(0, 0 [pid 3763] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3763] exit_group(0) = ? [pid 3763] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3766] <... setpgid resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 3614] close(3 [pid 3766] <... openat resumed>) = 3 [pid 3616] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3766] write(3, "1000", 4 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3766] <... write resumed>) = 4 [pid 3766] close(3 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3767 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3768 [pid 3766] <... close resumed>) = 0 [pid 3764] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3764] exit_group(0) = ? [pid 3764] +++ exited with 0 +++ ./strace-static-x86_64: Process 3768 attached [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 3768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3766] memfd_create("syzkaller", 0 [pid 3768] <... prctl resumed>) = 0 [pid 3766] <... memfd_create resumed>) = 3 [pid 3768] setpgid(0, 0 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3768] <... setpgid resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3768] <... openat resumed>) = 3 [pid 3768] write(3, "1000", 4) = 4 [pid 3768] close(3) = 0 [pid 3768] memfd_create("syzkaller", 0) = 3 [pid 3768] ftruncate(3, 0./strace-static-x86_64: Process 3767 attached ) = 0 [pid 3766] ftruncate(3, 0 [pid 3768] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3767] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3766] <... ftruncate resumed>) = 0 [pid 3768] <... openat resumed>) = 4 [pid 3767] <... prctl resumed>) = 0 [pid 3766] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3768] ioctl(4, LOOP_SET_FD, 3 [pid 3767] setpgid(0, 0 [pid 3766] <... openat resumed>) = 4 [pid 3768] <... ioctl resumed>) = 0 [pid 3767] <... setpgid resumed>) = 0 [pid 3766] ioctl(4, LOOP_SET_FD, 3 [pid 3768] mkdir("./file0", 0777 [pid 3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3766] <... ioctl resumed>) = 0 [pid 3765] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3768] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3767] <... openat resumed>) = 3 [pid 3766] mkdir("./file0", 0777 [pid 3765] exit_group(0 [pid 3768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3767] write(3, "1000", 4 [pid 3766] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3765] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3768] pipe2( [pid 3767] <... write resumed>) = 4 [pid 3766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3765] +++ exited with 0 +++ [pid 3620] close(3 [pid 3768] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3767] close(3 [pid 3766] pipe2( [pid 3620] <... close resumed>) = 0 [pid 3768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3767] <... close resumed>) = 0 [pid 3766] <... pipe2 resumed>[5, 6], 0) = 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=3765, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 3769 attached [pid 3767] memfd_create("syzkaller", 0 [pid 3766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3617] <... ioctl resumed>) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3767] <... memfd_create resumed>) = 3 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3769 [pid 3617] close(3 [pid 3615] <... openat resumed>) = 3 [pid 3769] <... prctl resumed>) = 0 [pid 3767] ftruncate(3, 0 [pid 3617] <... close resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3769] setpgid(0, 0 [pid 3767] <... ftruncate resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3769] <... setpgid resumed>) = 0 [pid 3767] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3767] <... openat resumed>) = 4 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3770 [pid 3769] <... openat resumed>) = 3 [pid 3767] ioctl(4, LOOP_SET_FD, 3 [pid 3769] write(3, "1000", 4 [pid 3767] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3770 attached [pid 3769] <... write resumed>) = 4 [pid 3767] mkdir("./file0", 0777 [pid 3770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3769] close(3 [pid 3767] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3770] <... prctl resumed>) = 0 [pid 3769] <... close resumed>) = 0 [pid 3767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3770] setpgid(0, 0 [pid 3769] memfd_create("syzkaller", 0 [pid 3767] pipe2( [pid 3770] <... setpgid resumed>) = 0 [pid 3769] <... memfd_create resumed>) = 3 [pid 3767] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3769] ftruncate(3, 0 [pid 3767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3770] <... openat resumed>) = 3 [pid 3769] <... ftruncate resumed>) = 0 [pid 3770] write(3, "1000", 4 [pid 3769] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3768] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3768] exit_group(0) = ? [pid 3770] <... write resumed>) = 4 [pid 3769] <... openat resumed>) = 4 [pid 3768] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3768, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3770] close(3 [pid 3769] ioctl(4, LOOP_SET_FD, 3 [pid 3770] <... close resumed>) = 0 [pid 3769] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3770] memfd_create("syzkaller", 0 [pid 3769] mkdir("./file0", 0777 [pid 3615] close(3 [pid 3770] <... memfd_create resumed>) = 3 [pid 3769] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] <... close resumed>) = 0 [pid 3770] ftruncate(3, 0 [pid 3769] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3770] <... ftruncate resumed>) = 0 [pid 3769] pipe2( [pid 3770] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3769] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3771 [pid 3770] <... openat resumed>) = 4 [pid 3769] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3770] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 3771 attached ) = 0 [pid 3771] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3770] mkdir("./file0", 0777 [pid 3771] <... prctl resumed>) = 0 [pid 3770] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3771] setpgid(0, 0 [pid 3770] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3771] <... setpgid resumed>) = 0 [pid 3770] pipe2( [pid 3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3770] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3771] <... openat resumed>) = 3 [pid 3770] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3771] write(3, "1000", 4) = 4 [pid 3771] close(3 [pid 3767] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3766] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] close(3 [pid 3771] <... close resumed>) = 0 [pid 3767] exit_group(0 [pid 3766] exit_group(0 [pid 3614] <... close resumed>) = 0 [pid 3771] memfd_create("syzkaller", 0 [pid 3767] <... exit_group resumed>) = ? [pid 3766] <... exit_group resumed>) = ? [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3771] <... memfd_create resumed>) = 3 [pid 3767] +++ exited with 0 +++ [pid 3766] +++ exited with 0 +++ [pid 3771] ftruncate(3, 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3772 [pid 3771] <... ftruncate resumed>) = 0 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3771] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3771] <... openat resumed>) = 4 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3771] ioctl(4, LOOP_SET_FD, 3 [pid 3621] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3771] <... ioctl resumed>) = 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3771] mkdir("./file0", 0777./strace-static-x86_64: Process 3772 attached ) = -1 EEXIST (File exists) [pid 3771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3771] pipe2( [pid 3772] <... prctl resumed>) = 0 [pid 3771] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3772] setpgid(0, 0 [pid 3771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3772] <... setpgid resumed>) = 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/loop0", O_RDWR) = 4 [pid 3772] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3772] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3772] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3772] pipe2([5, 6], 0) = 0 [pid 3772] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3769] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3770] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3769] exit_group(0 [pid 3621] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3769] <... exit_group resumed>) = ? [pid 3621] close(3 [pid 3616] close(3 [pid 3621] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3770] exit_group(0 [pid 3769] +++ exited with 0 +++ [pid 3621] 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 3770] <... exit_group resumed>) = ? [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3773 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3774 [pid 3770] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 3774 attached [pid 3771] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3617] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3773 attached [pid 3774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3771] exit_group(0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3774] <... prctl resumed>) = 0 [pid 3773] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3771] <... exit_group resumed>) = ? [pid 3774] setpgid(0, 0 [pid 3773] <... prctl resumed>) = 0 [pid 3774] <... setpgid resumed>) = 0 [pid 3773] setpgid(0, 0 [pid 3771] +++ exited with 0 +++ [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3773] <... setpgid resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3771, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3774] <... openat resumed>) = 3 [pid 3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3774] write(3, "1000", 4 [pid 3773] <... openat resumed>) = 3 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3774] <... write resumed>) = 4 [pid 3773] write(3, "1000", 4 [pid 3772] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3774] close(3 [pid 3773] <... write resumed>) = 4 [pid 3772] exit_group(0 [pid 3774] <... close resumed>) = 0 [pid 3773] close(3 [pid 3772] <... exit_group resumed>) = ? [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3774] memfd_create("syzkaller", 0 [pid 3773] <... close resumed>) = 0 [pid 3772] +++ exited with 0 +++ [pid 3615] <... openat resumed>) = 3 [pid 3774] <... memfd_create resumed>) = 3 [pid 3773] memfd_create("syzkaller", 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3774] ftruncate(3, 0 [pid 3773] <... memfd_create resumed>) = 3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3774] <... ftruncate resumed>) = 0 [pid 3773] ftruncate(3, 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3774] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3773] <... ftruncate resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3774] <... openat resumed>) = 4 [pid 3773] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3774] ioctl(4, LOOP_SET_FD, 3 [pid 3773] <... openat resumed>) = 4 [pid 3774] <... ioctl resumed>) = 0 [pid 3773] ioctl(4, LOOP_SET_FD, 3 [pid 3774] mkdir("./file0", 0777 [pid 3773] <... ioctl resumed>) = 0 [pid 3774] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3773] mkdir("./file0", 0777 [pid 3774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3773] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3774] pipe2( [pid 3773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3774] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3773] pipe2( [pid 3774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3773] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3617] close(3 [pid 3615] close(3 [pid 3614] close(3 [pid 3620] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3614] <... 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 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3775 attached [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3775 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3776 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3777 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3778 ./strace-static-x86_64: Process 3777 attached [pid 3775] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3775] <... prctl resumed>) = 0 [pid 3777] <... prctl resumed>) = 0 [pid 3775] setpgid(0, 0 [pid 3777] setpgid(0, 0 [pid 3775] <... setpgid resumed>) = 0 [pid 3777] <... setpgid resumed>) = 0 [pid 3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3778 attached [pid 3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3775] <... openat resumed>) = 3 [pid 3774] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 3776 attached [pid 3778] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3777] <... openat resumed>) = 3 [pid 3775] write(3, "1000", 4 [pid 3774] exit_group(0 [pid 3778] <... prctl resumed>) = 0 [pid 3777] write(3, "1000", 4 [pid 3776] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3775] <... write resumed>) = 4 [pid 3774] <... exit_group resumed>) = ? [pid 3778] setpgid(0, 0 [pid 3777] <... write resumed>) = 4 [pid 3776] <... prctl resumed>) = 0 [pid 3775] close(3 [pid 3778] <... setpgid resumed>) = 0 [pid 3777] close(3 [pid 3776] setpgid(0, 0 [pid 3775] <... close resumed>) = 0 [pid 3774] +++ exited with 0 +++ [pid 3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3777] <... close resumed>) = 0 [pid 3776] <... setpgid resumed>) = 0 [pid 3775] memfd_create("syzkaller", 0 [pid 3778] <... openat resumed>) = 3 [pid 3777] memfd_create("syzkaller", 0 [pid 3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3775] <... memfd_create resumed>) = 3 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3774, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3778] write(3, "1000", 4 [pid 3777] <... memfd_create resumed>) = 3 [pid 3776] <... openat resumed>) = 3 [pid 3775] ftruncate(3, 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3778] <... write resumed>) = 4 [pid 3777] ftruncate(3, 0 [pid 3776] write(3, "1000", 4 [pid 3775] <... ftruncate resumed>) = 0 [pid 3773] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] <... openat resumed>) = 3 [pid 3778] close(3 [pid 3777] <... ftruncate resumed>) = 0 [pid 3776] <... write resumed>) = 4 [pid 3775] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3773] exit_group(0 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3778] <... close resumed>) = 0 [pid 3777] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3776] close(3 [pid 3775] <... openat resumed>) = 4 [pid 3773] <... exit_group resumed>) = ? [pid 3778] memfd_create("syzkaller", 0 [pid 3777] <... openat resumed>) = 4 [pid 3776] <... close resumed>) = 0 [pid 3775] ioctl(4, LOOP_SET_FD, 3 [pid 3778] <... memfd_create resumed>) = 3 [pid 3777] ioctl(4, LOOP_SET_FD, 3 [pid 3776] memfd_create("syzkaller", 0 [pid 3775] <... ioctl resumed>) = 0 [pid 3773] +++ exited with 0 +++ [pid 3778] ftruncate(3, 0 [pid 3777] <... ioctl resumed>) = 0 [pid 3776] <... memfd_create resumed>) = 3 [pid 3775] mkdir("./file0", 0777 [pid 3778] <... ftruncate resumed>) = 0 [pid 3777] mkdir("./file0", 0777 [pid 3776] ftruncate(3, 0 [pid 3775] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3778] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3777] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3776] <... ftruncate resumed>) = 0 [pid 3775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3778] <... openat resumed>) = 4 [pid 3777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3776] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3775] pipe2( [pid 3621] <... openat resumed>) = 3 [pid 3778] ioctl(4, LOOP_SET_FD, 3 [pid 3777] pipe2( [pid 3776] <... openat resumed>) = 4 [pid 3775] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3778] <... ioctl resumed>) = 0 [pid 3777] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3776] ioctl(4, LOOP_SET_FD, 3 [pid 3775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3778] mkdir("./file0", 0777 [pid 3777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3776] <... ioctl resumed>) = 0 [pid 3778] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3776] mkdir("./file0", 0777 [pid 3778] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3776] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3778] pipe2( [pid 3776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3778] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3776] pipe2( [pid 3778] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3776] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3779 [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=0x55555661b690) = 3780 ./strace-static-x86_64: Process 3780 attached [pid 3780] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3779 attached ) = 0 [pid 3779] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3780] setpgid(0, 0 [pid 3779] <... prctl resumed>) = 0 [pid 3780] <... setpgid resumed>) = 0 [pid 3779] setpgid(0, 0 [pid 3780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3780] write(3, "1000", 4) = 4 [pid 3780] close(3 [pid 3779] <... setpgid resumed>) = 0 [pid 3777] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3780] <... close resumed>) = 0 [pid 3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3780] memfd_create("syzkaller", 0 [pid 3777] exit_group(0 [pid 3779] <... openat resumed>) = 3 [pid 3780] <... memfd_create resumed>) = 3 [pid 3779] write(3, "1000", 4 [pid 3777] <... exit_group resumed>) = ? [pid 3780] ftruncate(3, 0) = 0 [pid 3780] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3778] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3780] ioctl(4, LOOP_SET_FD, 3 [pid 3779] <... write resumed>) = 4 [pid 3777] +++ exited with 0 +++ [pid 3780] <... ioctl resumed>) = 0 [pid 3779] close(3 [pid 3778] exit_group(0 [pid 3780] mkdir("./file0", 0777 [pid 3779] <... close resumed>) = 0 [pid 3778] <... exit_group resumed>) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3777, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3780] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3779] memfd_create("syzkaller", 0 [pid 3775] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3779] <... memfd_create resumed>) = 3 [pid 3775] exit_group(0 [pid 3779] ftruncate(3, 0 [pid 3775] <... exit_group resumed>) = ? [pid 3780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3779] <... ftruncate resumed>) = 0 [pid 3775] +++ exited with 0 +++ [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3780] pipe2( [pid 3779] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3780] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3779] <... openat resumed>) = 4 [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3615] <... openat resumed>) = 3 [pid 3780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3779] ioctl(4, LOOP_SET_FD, 3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3779] <... ioctl resumed>) = 0 [pid 3779] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3778] +++ exited with 0 +++ [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3779] pipe2([5, 6], 0) = 0 [pid 3779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] <... openat resumed>) = 3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3614] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = 0 [pid 3776] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3776] exit_group(0 [pid 3614] <... ioctl resumed>) = 0 [pid 3615] close(3 [pid 3614] close(3 [pid 3615] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3776] <... exit_group resumed>) = ? [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3781 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3782 [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3783 [pid 3776] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3783 attached ./strace-static-x86_64: Process 3782 attached ./strace-static-x86_64: Process 3781 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 3782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3783] write(3, "1000", 4) = 4 [pid 3783] close(3) = 0 [pid 3783] memfd_create("syzkaller", 0) = 3 [pid 3782] <... prctl resumed>) = 0 [pid 3781] <... prctl resumed>) = 0 [pid 3783] ftruncate(3, 0) = 0 [pid 3783] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3782] setpgid(0, 0 [pid 3783] ioctl(4, LOOP_SET_FD, 3 [pid 3782] <... setpgid resumed>) = 0 [pid 3781] setpgid(0, 0 [pid 3783] <... ioctl resumed>) = 0 [pid 3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3781] <... setpgid resumed>) = 0 [pid 3783] mkdir("./file0", 0777 [pid 3782] <... openat resumed>) = 3 [pid 3783] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3782] write(3, "1000", 4 [pid 3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3782] <... write resumed>) = 4 [pid 3783] pipe2( [pid 3781] <... openat resumed>) = 3 [pid 3783] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3782] close(3 [pid 3781] write(3, "1000", 4 [pid 3783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3782] <... close resumed>) = 0 [pid 3781] <... write resumed>) = 4 [pid 3782] memfd_create("syzkaller", 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3782] <... memfd_create resumed>) = 3 [pid 3781] close(3 [pid 3780] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] close(3 [pid 3782] ftruncate(3, 0 [pid 3781] <... close resumed>) = 0 [pid 3780] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3782] <... ftruncate resumed>) = 0 [pid 3781] memfd_create("syzkaller", 0 [pid 3780] <... exit_group resumed>) = ? [pid 3782] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3781] <... memfd_create resumed>) = 3 ./strace-static-x86_64: Process 3784 attached [pid 3782] <... openat resumed>) = 4 [pid 3781] ftruncate(3, 0 [pid 3780] +++ exited with 0 +++ [pid 3784] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3782] ioctl(4, LOOP_SET_FD, 3 [pid 3781] <... ftruncate resumed>) = 0 [pid 3784] <... prctl resumed>) = 0 [pid 3782] <... ioctl resumed>) = 0 [pid 3781] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3784 [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3780, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3784] setpgid(0, 0 [pid 3782] mkdir("./file0", 0777 [pid 3781] <... openat resumed>) = 4 [pid 3784] <... setpgid resumed>) = 0 [pid 3782] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3781] ioctl(4, LOOP_SET_FD, 3 [pid 3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3782] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3781] <... ioctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3784] <... openat resumed>) = 3 [pid 3782] pipe2( [pid 3781] mkdir("./file0", 0777 [pid 3784] write(3, "1000", 4 [pid 3782] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3781] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] <... openat resumed>) = 3 [pid 3784] <... write resumed>) = 4 [pid 3782] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3784] close(3 [pid 3781] pipe2( [pid 3784] <... close resumed>) = 0 [pid 3779] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3784] memfd_create("syzkaller", 0 [pid 3781] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3779] exit_group(0 [pid 3784] <... memfd_create resumed>) = 3 [pid 3781] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3779] <... exit_group resumed>) = ? [pid 3784] ftruncate(3, 0 [pid 3779] +++ exited with 0 +++ [pid 3784] <... ftruncate resumed>) = 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3784] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3784] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3784] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3621] <... openat resumed>) = 3 [pid 3784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3784] pipe2( [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3784] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3) = 0 [pid 3782] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3782] exit_group(0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3782] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 3785 attached [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3785 [pid 3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3782] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3782, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3785] setpgid(0, 0) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3621] <... ioctl resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3621] close(3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3621] <... close resumed>) = 0 [pid 3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3785] <... openat resumed>) = 3 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3786 [pid 3785] write(3, "1000", 4) = 4 [pid 3785] close(3) = 0 [pid 3785] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3786 attached ) = 3 [pid 3785] ftruncate(3, 0 [pid 3786] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3785] <... ftruncate resumed>) = 0 [pid 3786] <... prctl resumed>) = 0 [pid 3785] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3786] setpgid(0, 0 [pid 3785] <... openat resumed>) = 4 [pid 3786] <... setpgid resumed>) = 0 [pid 3785] ioctl(4, LOOP_SET_FD, 3 [pid 3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3785] <... ioctl resumed>) = 0 [pid 3786] <... openat resumed>) = 3 [pid 3785] mkdir("./file0", 0777 [pid 3786] write(3, "1000", 4 [pid 3785] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3783] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3785] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3783] exit_group(0 [pid 3785] pipe2( [pid 3783] <... exit_group resumed>) = ? [pid 3785] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3783] +++ exited with 0 +++ [pid 3785] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3786] <... write resumed>) = 4 [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3783, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3786] close(3 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3786] <... close resumed>) = 0 [pid 3786] memfd_create("syzkaller", 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3786] <... memfd_create resumed>) = 3 [pid 3620] <... openat resumed>) = 3 [pid 3786] ftruncate(3, 0 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3786] <... ftruncate resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3786] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3786] <... openat resumed>) = 4 ./strace-static-x86_64: Process 3787 attached [pid 3786] ioctl(4, LOOP_SET_FD, 3 [pid 3781] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3786] <... ioctl resumed>) = 0 [pid 3781] exit_group(0 [pid 3787] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3786] mkdir("./file0", 0777 [pid 3784] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3787 [pid 3787] <... prctl resumed>) = 0 [pid 3786] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3784] exit_group(0 [pid 3787] setpgid(0, 0 [pid 3786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3784] <... exit_group resumed>) = ? [pid 3787] <... setpgid resumed>) = 0 [pid 3786] pipe2( [pid 3784] +++ exited with 0 +++ [pid 3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3786] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3784, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3787] <... openat resumed>) = 3 [pid 3786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3787] write(3, "1000", 4 [pid 3781] <... exit_group resumed>) = ? [pid 3787] <... write resumed>) = 4 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3787] close(3 [pid 3617] <... openat resumed>) = 3 [pid 3787] <... close resumed>) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3787] memfd_create("syzkaller", 0 [pid 3781] +++ exited with 0 +++ [pid 3787] <... memfd_create resumed>) = 3 [pid 3787] ftruncate(3, 0 [pid 3620] <... ioctl resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3787] <... ftruncate resumed>) = 0 [pid 3620] close(3 [pid 3787] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3787] <... openat resumed>) = 4 [pid 3620] <... close resumed>) = 0 [pid 3787] ioctl(4, LOOP_SET_FD, 3 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... openat resumed>) = 3 [pid 3787] <... ioctl resumed>) = 0 [pid 3787] mkdir("./file0", 0777 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3787] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3788 [pid 3787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3787] pipe2([5, 6], 0) = 0 [pid 3787] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3788 attached [pid 3788] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3785] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3785] exit_group(0) = ? [pid 3785] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3785, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3788] <... prctl resumed>) = 0 [pid 3788] setpgid(0, 0) = 0 [pid 3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3788] write(3, "1000", 4 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3788] <... write resumed>) = 4 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3788] close(3) = 0 [pid 3788] memfd_create("syzkaller", 0) = 3 [pid 3788] ftruncate(3, 0) = 0 [pid 3788] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3788] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3788] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3788] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3788] pipe2([5, 6], 0) = 0 [pid 3788] 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 3789 attached [pid 3615] <... ioctl resumed>) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3789 [pid 3616] <... ioctl resumed>) = 0 [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 3789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3789] setpgid(0, 0) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3790 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3791 [pid 3789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3789] write(3, "1000", 4) = 4 [pid 3789] close(3) = 0 [pid 3789] memfd_create("syzkaller", 0) = 3 [pid 3789] ftruncate(3, 0) = 0 [pid 3789] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3789] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3789] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3789] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3789] pipe2([5, 6], 0) = 0 [pid 3789] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3791 attached ./strace-static-x86_64: Process 3790 attached [pid 3787] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3786] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3791] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3787] exit_group(0 [pid 3786] exit_group(0 [pid 3791] <... prctl resumed>) = 0 [pid 3790] <... prctl resumed>) = 0 [pid 3787] <... exit_group resumed>) = ? [pid 3786] <... exit_group resumed>) = ? [pid 3791] setpgid(0, 0 [pid 3790] setpgid(0, 0 [pid 3787] +++ exited with 0 +++ [pid 3786] +++ exited with 0 +++ [pid 3791] <... setpgid resumed>) = 0 [pid 3790] <... setpgid resumed>) = 0 [pid 3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3786, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3787, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3791] <... openat resumed>) = 3 [pid 3790] <... openat resumed>) = 3 [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3791] write(3, "1000", 4 [pid 3790] write(3, "1000", 4 [pid 3621] <... restart_syscall resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3791] <... write resumed>) = 4 [pid 3790] <... write resumed>) = 4 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3791] close(3 [pid 3790] close(3 [pid 3791] <... close resumed>) = 0 [pid 3790] <... close resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3791] memfd_create("syzkaller", 0 [pid 3790] memfd_create("syzkaller", 0 [pid 3621] <... openat resumed>) = 3 [pid 3791] <... memfd_create resumed>) = 3 [pid 3790] <... memfd_create resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3791] ftruncate(3, 0 [pid 3790] ftruncate(3, 0 [pid 3791] <... ftruncate resumed>) = 0 [pid 3790] <... ftruncate resumed>) = 0 [pid 3791] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3790] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3791] <... openat resumed>) = 4 [pid 3790] <... openat resumed>) = 4 [pid 3791] ioctl(4, LOOP_SET_FD, 3 [pid 3790] ioctl(4, LOOP_SET_FD, 3 [pid 3791] <... ioctl resumed>) = 0 [pid 3790] <... ioctl resumed>) = 0 [pid 3791] mkdir("./file0", 0777 [pid 3790] mkdir("./file0", 0777 [pid 3791] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3790] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3791] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3790] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3791] pipe2( [pid 3790] pipe2( [pid 3791] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3790] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3791] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3790] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3788] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3788] exit_group(0) = ? [pid 3788] +++ exited with 0 +++ [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3788, 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/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3621] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3614] close(3 [pid 3621] <... close resumed>) = 0 [pid 3614] <... close resumed>) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3792 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3793 ./strace-static-x86_64: Process 3792 attached [pid 3792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3792] setpgid(0, 0) = 0 [pid 3792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3792] write(3, "1000", 4) = 4 [pid 3792] close(3) = 0 [pid 3792] memfd_create("syzkaller", 0./strace-static-x86_64: Process 3793 attached ) = 3 [pid 3792] ftruncate(3, 0 [pid 3793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3792] <... ftruncate resumed>) = 0 [pid 3793] <... prctl resumed>) = 0 [pid 3792] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3793] setpgid(0, 0 [pid 3792] <... openat resumed>) = 4 [pid 3792] ioctl(4, LOOP_SET_FD, 3 [pid 3793] <... setpgid resumed>) = 0 [pid 3792] <... ioctl resumed>) = 0 [pid 3792] mkdir("./file0", 0777 [pid 3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3792] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3793] <... openat resumed>) = 3 [pid 3792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3792] pipe2([5, 6], 0) = 0 [pid 3792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3793] write(3, "1000", 4 [pid 3789] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3793] <... write resumed>) = 4 [pid 3789] exit_group(0 [pid 3793] close(3 [pid 3789] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3793] <... close resumed>) = 0 [pid 3793] memfd_create("syzkaller", 0 [pid 3789] +++ exited with 0 +++ [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3794 [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3789, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3793] <... memfd_create resumed>) = 3 [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3793] ftruncate(3, 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3793] <... ftruncate resumed>) = 0 [pid 3793] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3794 attached ) = 4 [pid 3791] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3790] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3793] ioctl(4, LOOP_SET_FD, 3 [pid 3791] exit_group(0 [pid 3790] exit_group(0 [pid 3617] <... openat resumed>) = 3 [pid 3791] <... exit_group resumed>) = ? [pid 3794] <... prctl resumed>) = 0 [pid 3790] <... exit_group resumed>) = ? [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3793] <... ioctl resumed>) = 0 [pid 3794] setpgid(0, 0 [pid 3791] +++ exited with 0 +++ [pid 3790] +++ exited with 0 +++ [pid 3793] mkdir("./file0", 0777 [pid 3794] <... setpgid resumed>) = 0 [pid 3793] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3790, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3791, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3793] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3792] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3794] <... openat resumed>) = 3 [pid 3793] pipe2( [pid 3792] exit_group(0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3794] write(3, "1000", 4 [pid 3793] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3792] <... exit_group resumed>) = ? [pid 3794] <... write resumed>) = 4 [pid 3793] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3792] +++ exited with 0 +++ [pid 3794] close(3 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3794] <... close resumed>) = 0 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3792, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... openat resumed>) = 3 [pid 3615] <... openat resumed>) = 3 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3794] memfd_create("syzkaller", 0 [pid 3621] <... openat resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3794] <... memfd_create resumed>) = 3 [pid 3794] ftruncate(3, 0) = 0 [pid 3794] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3794] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3794] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3794] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3794] pipe2([5, 6], 0) = 0 [pid 3794] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3617] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3621] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3621] 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 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3795 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3796 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3797 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3798 ./strace-static-x86_64: Process 3797 attached ./strace-static-x86_64: Process 3795 attached [pid 3795] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3798 attached ) = 0 [pid 3798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3797] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3795] setpgid(0, 0 [pid 3798] <... prctl resumed>) = 0 [pid 3797] <... prctl resumed>) = 0 [pid 3795] <... setpgid resumed>) = 0 [pid 3798] setpgid(0, 0 [pid 3797] setpgid(0, 0./strace-static-x86_64: Process 3796 attached [pid 3798] <... setpgid resumed>) = 0 [pid 3797] <... setpgid resumed>) = 0 [pid 3798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3798] <... openat resumed>) = 3 [pid 3797] <... openat resumed>) = 3 [pid 3796] <... prctl resumed>) = 0 [pid 3795] <... openat resumed>) = 3 [pid 3798] write(3, "1000", 4 [pid 3797] write(3, "1000", 4 [pid 3796] setpgid(0, 0 [pid 3795] write(3, "1000", 4 [pid 3798] <... write resumed>) = 4 [pid 3797] <... write resumed>) = 4 [pid 3796] <... setpgid resumed>) = 0 [pid 3798] close(3 [pid 3797] close(3 [pid 3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3798] <... close resumed>) = 0 [pid 3797] <... close resumed>) = 0 [pid 3796] <... openat resumed>) = 3 [pid 3793] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3798] memfd_create("syzkaller", 0 [pid 3797] memfd_create("syzkaller", 0 [pid 3796] write(3, "1000", 4 [pid 3798] <... memfd_create resumed>) = 3 [pid 3797] <... memfd_create resumed>) = 3 [pid 3796] <... write resumed>) = 4 [pid 3795] <... write resumed>) = 4 [pid 3793] exit_group(0 [pid 3798] ftruncate(3, 0 [pid 3797] ftruncate(3, 0 [pid 3796] close(3 [pid 3798] <... ftruncate resumed>) = 0 [pid 3797] <... ftruncate resumed>) = 0 [pid 3796] <... close resumed>) = 0 [pid 3798] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3797] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3796] memfd_create("syzkaller", 0 [pid 3798] <... openat resumed>) = 4 [pid 3797] <... openat resumed>) = 4 [pid 3796] <... memfd_create resumed>) = 3 [pid 3798] ioctl(4, LOOP_SET_FD, 3 [pid 3797] ioctl(4, LOOP_SET_FD, 3 [pid 3796] ftruncate(3, 0 [pid 3798] <... ioctl resumed>) = 0 [pid 3797] <... ioctl resumed>) = 0 [pid 3796] <... ftruncate resumed>) = 0 [pid 3795] close(3 [pid 3793] <... exit_group resumed>) = ? [pid 3798] mkdir("./file0", 0777 [pid 3797] mkdir("./file0", 0777 [pid 3796] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3798] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3797] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3796] <... openat resumed>) = 4 [pid 3793] +++ exited with 0 +++ [pid 3795] <... close resumed>) = 0 [pid 3798] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3797] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3796] ioctl(4, LOOP_SET_FD, 3 [pid 3795] memfd_create("syzkaller", 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3793, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3798] pipe2( [pid 3797] pipe2( [pid 3796] <... ioctl resumed>) = 0 [pid 3795] <... memfd_create resumed>) = 3 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3798] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3797] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3796] mkdir("./file0", 0777 [pid 3795] ftruncate(3, 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3798] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3797] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3796] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3795] <... ftruncate resumed>) = 0 [pid 3796] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3796] pipe2( [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3796] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3796] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3795] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3795] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3795] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3795] pipe2([5, 6], 0) = 0 [pid 3795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,") = -1 EFAULT (Bad address) [pid 3794] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3795] exit_group(0 [pid 3794] exit_group(0 [pid 3795] <... exit_group resumed>) = ? [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3799 [pid 3795] +++ exited with 0 +++ [pid 3794] <... exit_group resumed>) = ? [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3795, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3621] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3794] +++ exited with 0 +++ [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [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 3621] <... openat resumed>) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3799 attached [pid 3798] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3799] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3798] exit_group(0 [pid 3797] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3799] <... prctl resumed>) = 0 [pid 3798] <... exit_group resumed>) = ? [pid 3797] exit_group(0 [pid 3796] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3799] setpgid(0, 0 [pid 3798] +++ exited with 0 +++ [pid 3797] <... exit_group resumed>) = ? [pid 3796] exit_group(0 [pid 3799] <... setpgid resumed>) = 0 [pid 3797] +++ exited with 0 +++ [pid 3796] <... exit_group resumed>) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3798, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3796] +++ exited with 0 +++ [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 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3799] <... openat resumed>) = 3 [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 3799] write(3, "1000", 4 [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3799] <... write resumed>) = 4 [pid 3617] <... openat resumed>) = 3 [pid 3616] <... openat resumed>) = 3 [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3799] close(3 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3799] <... close resumed>) = 0 [pid 3799] memfd_create("syzkaller", 0) = 3 [pid 3799] ftruncate(3, 0) = 0 [pid 3799] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3799] ioctl(4, LOOP_SET_FD, 3 [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3 [pid 3799] <... ioctl resumed>) = 0 [pid 3621] <... close resumed>) = 0 [pid 3799] mkdir("./file0", 0777 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3799] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3799] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3800 [pid 3799] pipe2([5, 6], 0) = 0 [pid 3799] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3800 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, child_tidptr=0x55555661b690) = 3801 [pid 3800] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3799] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 3801 attached [pid 3800] <... prctl resumed>) = 0 [pid 3799] exit_group(0 [pid 3800] setpgid(0, 0 [pid 3799] <... exit_group resumed>) = ? [pid 3800] <... setpgid resumed>) = 0 [pid 3801] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3799] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3799, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3801] <... prctl resumed>) = 0 [pid 3801] setpgid(0, 0) = 0 [pid 3800] write(3, "1000", 4 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3800] <... write resumed>) = 4 [pid 3617] <... ioctl resumed>) = 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3615] <... ioctl resumed>) = 0 [pid 3801] <... openat resumed>) = 3 [pid 3800] close(3 [pid 3617] close(3 [pid 3616] close(3 [pid 3615] close(3 [pid 3801] write(3, "1000", 4 [pid 3800] <... close resumed>) = 0 [pid 3617] <... close resumed>) = 0 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3801] <... write resumed>) = 4 [pid 3800] memfd_create("syzkaller", 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 3801] close(3 [pid 3800] <... memfd_create resumed>) = 3 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3801] <... close resumed>) = 0 [pid 3800] ftruncate(3, 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3802 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3803 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3804 [pid 3801] memfd_create("syzkaller", 0 [pid 3800] <... ftruncate resumed>) = 0 [pid 3614] <... openat resumed>) = 3 [pid 3801] <... memfd_create resumed>) = 3 [pid 3800] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3801] ftruncate(3, 0 [pid 3800] <... openat resumed>) = 4 [pid 3801] <... ftruncate resumed>) = 0 [pid 3800] ioctl(4, LOOP_SET_FD, 3 [pid 3801] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3804 attached ) = 4 [pid 3800] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3802 attached [pid 3804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3801] ioctl(4, LOOP_SET_FD, 3 [pid 3800] mkdir("./file0", 0777./strace-static-x86_64: Process 3803 attached [pid 3804] <... prctl resumed>) = 0 [pid 3802] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3801] <... ioctl resumed>) = 0 [pid 3800] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3804] setpgid(0, 0 [pid 3803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3801] mkdir("./file0", 0777 [pid 3800] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3802] <... prctl resumed>) = 0 [pid 3804] <... setpgid resumed>) = 0 [pid 3803] <... prctl resumed>) = 0 [pid 3801] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3800] pipe2( [pid 3804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3803] setpgid(0, 0 [pid 3802] setpgid(0, 0 [pid 3801] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3800] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3804] <... openat resumed>) = 3 [pid 3803] <... setpgid resumed>) = 0 [pid 3802] <... setpgid resumed>) = 0 [pid 3801] pipe2( [pid 3800] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3804] write(3, "1000", 4 [pid 3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3801] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3804] <... write resumed>) = 4 [pid 3803] <... openat resumed>) = 3 [pid 3801] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3804] close(3 [pid 3803] write(3, "1000", 4 [pid 3802] <... openat resumed>) = 3 [pid 3804] <... close resumed>) = 0 [pid 3803] <... write resumed>) = 4 [pid 3804] memfd_create("syzkaller", 0 [pid 3803] close(3 [pid 3804] <... memfd_create resumed>) = 3 [pid 3803] <... close resumed>) = 0 [pid 3804] ftruncate(3, 0 [pid 3803] memfd_create("syzkaller", 0 [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 3804] <... openat resumed>) = 4 [pid 3803] <... ftruncate resumed>) = 0 [pid 3804] ioctl(4, LOOP_SET_FD, 3 [pid 3803] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3804] <... ioctl resumed>) = 0 [pid 3803] <... openat resumed>) = 4 [pid 3804] mkdir("./file0", 0777 [pid 3803] ioctl(4, LOOP_SET_FD, 3 [pid 3802] write(3, "1000", 4 [pid 3804] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3803] <... ioctl resumed>) = 0 [pid 3802] <... write resumed>) = 4 [pid 3804] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3803] mkdir("./file0", 0777 [pid 3802] close(3 [pid 3804] pipe2( [pid 3803] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3802] <... close resumed>) = 0 [pid 3804] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3803] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3804] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3803] pipe2( [pid 3802] memfd_create("syzkaller", 0 [pid 3803] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3802] <... memfd_create resumed>) = 3 [pid 3803] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3802] ftruncate(3, 0) = 0 [pid 3802] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3802] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3802] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3614] <... ioctl resumed>) = 0 [pid 3802] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] close(3 [pid 3802] pipe2( [pid 3614] <... close resumed>) = 0 [pid 3802] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3802] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3805 [pid 3800] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3800] exit_group(0) = ? [pid 3800] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3800, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 3805 attached ) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3805] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3801] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3801] exit_group(0 [pid 3805] setpgid(0, 0 [pid 3801] <... exit_group resumed>) = ? [pid 3805] <... setpgid resumed>) = 0 [pid 3801] +++ exited with 0 +++ [pid 3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3801, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3620] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3805] <... openat resumed>) = 3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3805] write(3, "1000", 4 [pid 3620] <... openat resumed>) = 3 [pid 3805] <... write resumed>) = 4 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3805] close(3) = 0 [pid 3805] memfd_create("syzkaller", 0) = 3 [pid 3805] ftruncate(3, 0) = 0 [pid 3805] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3805] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3805] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3805] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3805] pipe2([5, 6], 0) = 0 [pid 3805] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3804] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3802] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] <... ioctl resumed>) = 0 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3804] exit_group(0 [pid 3802] exit_group(0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3806 [pid 3804] <... exit_group resumed>) = ? [pid 3802] <... exit_group resumed>) = ? [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/loop3", O_RDWR [pid 3804] +++ 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=3804, 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 3806 attached [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3803] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3806] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3803] exit_group(0 [pid 3620] close(3 [pid 3803] <... exit_group resumed>) = ? [pid 3620] <... close resumed>) = 0 [pid 3806] <... prctl resumed>) = 0 [pid 3803] +++ exited with 0 +++ [pid 3806] setpgid(0, 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=3803, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3806] <... setpgid resumed>) = 0 [pid 3617] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 3807 attached [pid 3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] close(3 [pid 3807] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3806] <... openat resumed>) = 3 [pid 3805] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3807 [pid 3807] <... prctl resumed>) = 0 [pid 3806] write(3, "1000", 4 [pid 3805] exit_group(0 [pid 3617] <... close resumed>) = 0 [pid 3807] setpgid(0, 0 [pid 3806] <... write resumed>) = 4 [pid 3805] <... exit_group resumed>) = ? [pid 3807] <... setpgid resumed>) = 0 [pid 3806] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3806] <... close resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3806] memfd_create("syzkaller", 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3808 [pid 3616] <... openat resumed>) = 3 [pid 3806] <... memfd_create resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3806] ftruncate(3, 0) = 0 [pid 3806] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3806] ioctl(4, LOOP_SET_FD, 3) = 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 3807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3805] +++ exited with 0 +++ [pid 3806] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3805, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3808 attached [pid 3807] <... openat resumed>) = 3 [pid 3807] write(3, "1000", 4) = 4 [pid 3807] close(3) = 0 [pid 3808] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3807] memfd_create("syzkaller", 0) = 3 [pid 3807] ftruncate(3, 0) = 0 [pid 3807] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3808] <... prctl resumed>) = 0 [pid 3807] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3808] setpgid(0, 0 [pid 3807] mkdir("./file0", 0777 [pid 3808] <... setpgid resumed>) = 0 [pid 3807] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3807] pipe2( [pid 3808] <... openat resumed>) = 3 [pid 3807] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3808] write(3, "1000", 4 [pid 3807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3808] <... write resumed>) = 4 [pid 3808] close(3 [pid 3615] <... ioctl resumed>) = 0 [pid 3808] <... close resumed>) = 0 [pid 3808] memfd_create("syzkaller", 0 [pid 3616] <... ioctl resumed>) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3615] close(3 [pid 3614] close(3 [pid 3616] <... close resumed>) = 0 [pid 3615] <... close resumed>) = 0 [pid 3614] <... 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 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3808] <... memfd_create resumed>) = 3 [pid 3808] ftruncate(3, 0) = 0 [pid 3808] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3808] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3809 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3810 ./strace-static-x86_64: Process 3809 attached [pid 3808] mkdir("./file0", 0777 [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3811 [pid 3808] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3808] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 3810 attached [pid 3808] pipe2( [pid 3810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3808] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3806] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 3811 attached [pid 3810] <... prctl resumed>) = 0 [pid 3808] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3811] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3810] setpgid(0, 0 [pid 3809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3806] exit_group(0 [pid 3811] <... prctl resumed>) = 0 [pid 3810] <... setpgid resumed>) = 0 [pid 3809] <... prctl resumed>) = 0 [pid 3806] <... exit_group resumed>) = ? [pid 3809] setpgid(0, 0 [pid 3811] setpgid(0, 0 [pid 3810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3811] <... setpgid resumed>) = 0 [pid 3810] <... openat resumed>) = 3 [pid 3809] <... setpgid resumed>) = 0 [pid 3806] +++ exited with 0 +++ [pid 3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3810] write(3, "1000", 4 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3806, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3811] <... openat resumed>) = 3 [pid 3810] <... write resumed>) = 4 [pid 3809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3811] write(3, "1000", 4 [pid 3810] close(3 [pid 3811] <... write resumed>) = 4 [pid 3810] <... close resumed>) = 0 [pid 3809] <... openat resumed>) = 3 [pid 3807] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3811] close(3 [pid 3810] memfd_create("syzkaller", 0 [pid 3809] write(3, "1000", 4 [pid 3807] exit_group(0 [pid 3811] <... close resumed>) = 0 [pid 3810] <... memfd_create resumed>) = 3 [pid 3809] <... write resumed>) = 4 [pid 3807] <... exit_group resumed>) = ? [pid 3811] memfd_create("syzkaller", 0 [pid 3810] ftruncate(3, 0 [pid 3809] close(3 [pid 3811] <... memfd_create resumed>) = 3 [pid 3810] <... ftruncate resumed>) = 0 [pid 3811] ftruncate(3, 0 [pid 3810] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3809] <... close resumed>) = 0 [pid 3807] +++ exited with 0 +++ [pid 3811] <... ftruncate resumed>) = 0 [pid 3810] <... openat resumed>) = 4 [pid 3811] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3810] ioctl(4, LOOP_SET_FD, 3 [pid 3809] memfd_create("syzkaller", 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3811] <... openat resumed>) = 4 [pid 3810] <... ioctl resumed>) = 0 [pid 3811] ioctl(4, LOOP_SET_FD, 3 [pid 3810] mkdir("./file0", 0777 [pid 3809] <... memfd_create resumed>) = 3 [pid 3621] <... openat resumed>) = 3 [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] <... ioctl resumed>) = 0 [pid 3810] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3809] ftruncate(3, 0 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3620] restart_syscall(<... resuming interrupted clone ...> [pid 3811] mkdir("./file0", 0777 [pid 3810] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3811] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3810] pipe2( [pid 3809] <... ftruncate resumed>) = 0 [pid 3620] <... restart_syscall resumed>) = 0 [pid 3811] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3810] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3811] pipe2( [pid 3810] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3809] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3811] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3811] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3809] <... openat resumed>) = 4 [pid 3809] ioctl(4, LOOP_SET_FD, 3 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3809] <... ioctl resumed>) = 0 [pid 3620] <... openat resumed>) = 3 [pid 3809] mkdir("./file0", 0777 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3809] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3809] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3809] pipe2([5, 6], 0) = 0 [pid 3809] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3621] <... ioctl resumed>) = 0 [pid 3808] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3808] exit_group(0 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3812 ./strace-static-x86_64: Process 3812 attached [pid 3808] <... exit_group resumed>) = ? [pid 3808] +++ exited with 0 +++ [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 3812] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3812] <... prctl resumed>) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3812] setpgid(0, 0) = 0 [pid 3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3812] <... openat resumed>) = 3 [pid 3617] <... openat resumed>) = 3 [pid 3812] write(3, "1000", 4 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3812] <... write resumed>) = 4 [pid 3812] close(3) = 0 [pid 3812] memfd_create("syzkaller", 0) = 3 [pid 3812] ftruncate(3, 0) = 0 [pid 3812] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 3812] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3812] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3812] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3620] <... ioctl resumed>) = 0 [pid 3812] pipe2( [pid 3620] close(3 [pid 3812] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] <... close resumed>) = 0 [pid 3812] 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, child_tidptr=0x55555661b690) = 3813 ./strace-static-x86_64: Process 3813 attached [pid 3813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3813] setpgid(0, 0) = 0 [pid 3813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3813] write(3, "1000", 4) = 4 [pid 3813] close(3) = 0 [pid 3813] memfd_create("syzkaller", 0) = 3 [pid 3813] ftruncate(3, 0) = 0 [pid 3813] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3810] <... mount resumed>) = -1 EFAULT (Bad address) [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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3810] exit_group(0) = ? [pid 3810] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3810, 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/loop1", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3811] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3811] exit_group(0 [pid 3809] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3811] <... exit_group resumed>) = ? [pid 3809] exit_group(0 [pid 3811] +++ exited with 0 +++ [pid 3809] <... exit_group resumed>) = ? [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3811, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3617] <... close resumed>) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3814 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3809] +++ exited with 0 +++ ./strace-static-x86_64: Process 3814 attached [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3809, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3616] <... restart_syscall resumed>) = 0 [pid 3814] <... prctl resumed>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3814] setpgid(0, 0 [pid 3616] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3814] <... setpgid resumed>) = 0 [pid 3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] <... ioctl resumed>) = 0 [pid 3814] write(3, "1000", 4 [pid 3615] close(3) = 0 [pid 3814] <... write resumed>) = 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555661b690) = 3815 [pid 3814] close(3) = 0 [pid 3814] memfd_create("syzkaller", 0) = 3 [pid 3814] ftruncate(3, 0./strace-static-x86_64: Process 3815 attached [pid 3815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3815] setpgid(0, 0) = 0 [pid 3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3815] write(3, "1000", 4) = 4 [pid 3815] close(3) = 0 [pid 3815] memfd_create("syzkaller", 0) = 3 [pid 3815] ftruncate(3, 0) = 0 [pid 3815] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 3815] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3614] <... ioctl resumed>) = 0 [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3815] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3815] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3815] pipe2([5, 6], 0) = 0 [pid 3812] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3614] <... clone resumed>, child_tidptr=0x55555661b690) = 3816 [pid 3815] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3812] exit_group(0) = ? ./strace-static-x86_64: Process 3816 attached [pid 3816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3816] setpgid(0, 0) = 0 [pid 3816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3816] write(3, "1000", 4) = 4 [pid 3816] close(3) = 0 [pid 3816] memfd_create("syzkaller", 0) = 3 [pid 3814] <... ftruncate resumed>) = 0 [pid 3813] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3812] +++ exited with 0 +++ [pid 3616] <... ioctl resumed>) = 0 [pid 3616] close(3 [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3812, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] <... close resumed>) = 0 [pid 3621] restart_syscall(<... resuming interrupted clone ...> [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3817 attached [pid 3816] ftruncate(3, 0 [pid 3814] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3813] exit_group(0 [pid 3621] <... restart_syscall resumed>) = 0 [pid 3817] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3816] <... ftruncate resumed>) = 0 [pid 3814] <... openat resumed>) = 4 [pid 3813] <... exit_group resumed>) = ? [pid 3616] <... clone resumed>, child_tidptr=0x55555661b690) = 3817 [pid 3817] <... prctl resumed>) = 0 [pid 3816] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3814] ioctl(4, LOOP_SET_FD, 3 [pid 3813] +++ exited with 0 +++ [pid 3817] setpgid(0, 0 [pid 3816] <... openat resumed>) = 4 [pid 3814] <... ioctl resumed>) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR [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 3817] <... setpgid resumed>) = 0 [pid 3816] ioctl(4, LOOP_SET_FD, 3 [pid 3814] mkdir("./file0", 0777 [pid 3621] <... openat resumed>) = 3 [pid 3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3816] <... ioctl resumed>) = 0 [pid 3814] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3816] mkdir("./file0", 0777 [pid 3814] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3817] <... openat resumed>) = 3 [pid 3815] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3817] write(3, "1000", 4 [pid 3814] pipe2( [pid 3816] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3814] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3814] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3816] pipe2( [pid 3620] <... openat resumed>) = 3 [pid 3816] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3817] <... write resumed>) = 4 [pid 3817] close(3) = 0 [pid 3817] memfd_create("syzkaller", 0 [pid 3815] exit_group(0 [pid 3817] <... memfd_create resumed>) = 3 [pid 3817] ftruncate(3, 0) = 0 [pid 3815] <... exit_group resumed>) = ? [pid 3817] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 3815] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3815, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3817] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3621] <... ioctl resumed>) = 0 [pid 3817] mkdir("./file0", 0777 [pid 3621] close(3) = 0 [pid 3621] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3621] <... clone resumed>, child_tidptr=0x55555661b690) = 3818 [pid 3817] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3817] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3817] pipe2([5, 6], 0) = 0 [pid 3817] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3818 attached [pid 3818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3818] setpgid(0, 0) = 0 [pid 3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3818] write(3, "1000", 4 [pid 3814] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] <... ioctl resumed>) = 0 [pid 3620] close(3 [pid 3814] exit_group(0 [pid 3620] <... close resumed>) = 0 [pid 3814] <... exit_group resumed>) = ? [pid 3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3818] <... write resumed>) = 4 [pid 3818] close(3) = 0 [pid 3818] memfd_create("syzkaller", 0 [pid 3620] <... clone resumed>, child_tidptr=0x55555661b690) = 3819 [pid 3818] <... memfd_create resumed>) = 3 [pid 3818] ftruncate(3, 0) = 0 [pid 3818] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 ./strace-static-x86_64: Process 3819 attached [pid 3818] ioctl(4, LOOP_SET_FD, 3 [pid 3819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3819] setpgid(0, 0) = 0 [pid 3819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3814] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3814, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3819] <... openat resumed>) = 3 [pid 3818] <... ioctl resumed>) = 0 [pid 3819] write(3, "1000", 4 [pid 3818] mkdir("./file0", 0777 [pid 3819] <... write resumed>) = 4 [pid 3818] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3617] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3615] <... ioctl resumed>) = 0 [pid 3819] close(3 [pid 3818] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3819] <... close resumed>) = 0 [pid 3818] pipe2( [pid 3617] <... openat resumed>) = 3 [pid 3615] close(3 [pid 3819] memfd_create("syzkaller", 0 [pid 3818] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3615] <... close resumed>) = 0 [pid 3819] <... memfd_create resumed>) = 3 [pid 3818] 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 [pid 3819] ftruncate(3, 0) = 0 [pid 3819] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 3819] ioctl(4, LOOP_SET_FD, 3 [pid 3615] <... clone resumed>, child_tidptr=0x55555661b690) = 3820 [pid 3819] <... ioctl resumed>) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any,"./strace-static-x86_64: Process 3820 attached [pid 3820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3820] setpgid(0, 0) = 0 [pid 3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3820] write(3, "1000", 4) = 4 [pid 3820] close(3) = 0 [pid 3820] memfd_create("syzkaller", 0) = 3 [pid 3816] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3820] ftruncate(3, 0 [pid 3816] exit_group(0 [pid 3820] <... ftruncate resumed>) = 0 [pid 3816] <... exit_group resumed>) = ? [pid 3820] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3816] +++ exited with 0 +++ [pid 3820] <... openat resumed>) = 4 [pid 3820] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3816, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3820] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3817] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3617] <... ioctl resumed>) = 0 [pid 3617] close(3 [pid 3820] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] <... close resumed>) = 0 [pid 3820] pipe2( [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3820] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3617] <... clone resumed>, child_tidptr=0x55555661b690) = 3821 [pid 3820] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006,access=any," [pid 3818] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3819] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3817] exit_group(0 [pid 3819] exit_group(0) = ? [pid 3818] exit_group(0 [pid 3819] +++ exited with 0 +++ [pid 3818] <... exit_group resumed>) = ? [pid 3818] +++ exited with 0 +++ ./strace-static-x86_64: Process 3821 attached [pid 3821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3821] setpgid(0, 0) = 0 [pid 3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3821] write(3, "1000", 4) = 4 [pid 3821] close(3) = 0 [pid 3821] memfd_create("syzkaller", 0) = 3 [pid 3821] ftruncate(3, 0) = 0 [pid 3821] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 3821] ioctl(4, LOOP_SET_FD, 3 [pid 3817] <... exit_group resumed>) = ? [pid 3817] +++ exited with 0 +++ [pid 3621] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3818, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3621] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3621] ioctl(3, LOOP_CLR_FD [pid 3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3819, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3620] ioctl(3, LOOP_CLR_FD [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3817, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3616] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 55.103790][ T3820] ================================================================== [ 55.111885][ T3820] BUG: KASAN: use-after-free in __kernfs_remove+0xf2d/0x1180 [ 55.119280][ T3820] Read of size 2 at addr ffff8880255729a8 by task syz-executor344/3820 [ 55.127494][ T3820] [ 55.129796][ T3820] CPU: 1 PID: 3820 Comm: syz-executor344 Not tainted 6.0.0-rc7-syzkaller-00042-g46452d3786a8 #0 [ 55.140178][ T3820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 55.150216][ T3820] Call Trace: [ 55.153488][ T3820] [ 55.156402][ T3820] dump_stack_lvl+0x1e3/0x2cb [ 55.161074][ T3820] ? io_alloc_page_table+0x110/0x110 [ 55.166336][ T3820] ? _printk+0xcf/0x10f [ 55.170481][ T3820] ? __wake_up_klogd+0xd6/0x100 [ 55.175310][ T3820] ? __wake_up_klogd+0xcd/0x100 [ 55.180138][ T3820] ? panic+0x76b/0x76b [ 55.184184][ T3820] ? _printk+0xcf/0x10f [ 55.188320][ T3820] print_address_description+0x65/0x4b0 [ 55.193844][ T3820] print_report+0x108/0x220 [ 55.198336][ T3820] ? kernfs_put+0x340/0x490 [ 55.202824][ T3820] ? kmem_cache_free+0x95/0x1d0 [ 55.207664][ T3820] ? __kernfs_remove+0xf2d/0x1180 [ 55.212685][ T3820] kasan_report+0xfb/0x130 [ 55.217084][ T3820] ? __kernfs_remove+0xf2d/0x1180 [ 55.222087][ T3820] __kernfs_remove+0xf2d/0x1180 [ 55.226917][ T3820] ? kernfs_iop_rename+0x7d0/0x7d0 [ 55.232008][ T3820] ? kernfs_find_ns+0x4d6/0x550 [ 55.236838][ T3820] kernfs_remove_by_name_ns+0x96/0xe0 [ 55.242192][ T3820] sysfs_slab_add+0x54/0x2a0 [ 55.246762][ T3820] __kmem_cache_create+0x34/0x170 [ 55.251776][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 55.257485][ T3820] p9_client_create+0xbbe/0x1030 [ 55.262420][ T3820] ? do_trace_9p_fid_put+0x20/0x20 [ 55.267529][ T3820] ? lockdep_softirqs_off+0x420/0x420 [ 55.272894][ T3820] ? __raw_spin_lock_init+0x41/0x100 [ 55.278177][ T3820] v9fs_session_init+0x1e3/0x1990 [ 55.283188][ T3820] ? v9fs_show_options+0x600/0x600 [ 55.288281][ T3820] ? kmem_cache_alloc_trace+0x97/0x310 [ 55.293724][ T3820] ? v9fs_mount+0xae/0xcb0 [ 55.298126][ T3820] v9fs_mount+0xd2/0xcb0 [ 55.302353][ T3820] ? xfs_fs_commit_blocks+0x8d0/0x8d0 [ 55.307708][ T3820] ? legacy_init_fs_context+0x4d/0xb0 [ 55.313063][ T3820] ? smack_sb_eat_lsm_opts+0x197/0x990 [ 55.318518][ T3820] ? cap_capable+0x1b5/0x250 [ 55.323101][ T3820] legacy_get_tree+0xea/0x180 [ 55.327756][ T3820] ? xfs_fs_commit_blocks+0x8d0/0x8d0 [ 55.333107][ T3820] vfs_get_tree+0x88/0x270 [ 55.337501][ T3820] do_new_mount+0x289/0xad0 [ 55.341998][ T3820] ? do_move_mount_old+0x160/0x160 [ 55.347086][ T3820] ? user_path_at_empty+0x149/0x1a0 [ 55.352266][ T3820] __se_sys_mount+0x2e3/0x3d0 [ 55.356920][ T3820] ? __x64_sys_mount+0xc0/0xc0 [ 55.361659][ T3820] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 55.367617][ T3820] ? __x64_sys_mount+0x1c/0xc0 [ 55.372360][ T3820] do_syscall_64+0x2b/0x70 [ 55.376754][ T3820] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.382627][ T3820] RIP: 0033:0x7f02e17a9129 [ 55.387022][ T3820] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 55.406607][ T3820] RSP: 002b:00007ffc64ca83b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 55.414997][ T3820] RAX: ffffffffffffffda RBX: 00007ffc64ca83f0 RCX: 00007f02e17a9129 [ 55.422949][ T3820] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000 [ 55.430899][ T3820] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000d669 [ 55.438847][ T3820] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 55.446795][ T3820] R13: 000000000000d669 R14: 00007ffc64ca83dc R15: 00007ffc64ca83e0 [ 55.454748][ T3820] [ 55.457745][ T3820] [ 55.460054][ T3820] Allocated by task 3819: [ 55.464354][ T3820] __kasan_slab_alloc+0xb2/0xe0 [ 55.469183][ T3820] kmem_cache_alloc+0x1a6/0x310 [ 55.474014][ T3820] __kernfs_new_node+0xdb/0x730 [ 55.478842][ T3820] kernfs_create_dir_ns+0x90/0x220 [ 55.483942][ T3820] sysfs_create_dir_ns+0x181/0x390 [ 55.489032][ T3820] kobject_add_internal+0x6dd/0xd10 [ 55.494205][ T3820] kobject_init_and_add+0x123/0x190 [ 55.499378][ T3820] sysfs_slab_add+0x80/0x2a0 [ 55.503946][ T3820] __kmem_cache_create+0x34/0x170 [ 55.508949][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 55.514645][ T3820] p9_client_create+0xbbe/0x1030 [ 55.519569][ T3820] v9fs_session_init+0x1e3/0x1990 [ 55.524569][ T3820] v9fs_mount+0xd2/0xcb0 [ 55.528789][ T3820] legacy_get_tree+0xea/0x180 [ 55.533441][ T3820] vfs_get_tree+0x88/0x270 [ 55.537844][ T3820] do_new_mount+0x289/0xad0 [ 55.542331][ T3820] __se_sys_mount+0x2e3/0x3d0 [ 55.546982][ T3820] do_syscall_64+0x2b/0x70 [ 55.551374][ T3820] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.557250][ T3820] [ 55.559551][ T3820] Freed by task 3820: [ 55.563506][ T3820] kasan_set_track+0x4c/0x70 [ 55.568072][ T3820] kasan_set_free_info+0x1f/0x40 [ 55.572987][ T3820] ____kasan_slab_free+0xd8/0x120 [ 55.577986][ T3820] slab_free_freelist_hook+0x12e/0x1a0 [ 55.583423][ T3820] kmem_cache_free+0x95/0x1d0 [ 55.588074][ T3820] kernfs_put+0x340/0x490 [ 55.592381][ T3820] __kernfs_remove+0xec0/0x1180 [ 55.597225][ T3820] kernfs_remove_by_name_ns+0x96/0xe0 [ 55.602572][ T3820] sysfs_slab_add+0x54/0x2a0 [ 55.607138][ T3820] __kmem_cache_create+0x34/0x170 [ 55.612139][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 55.617836][ T3820] p9_client_create+0xbbe/0x1030 [ 55.622751][ T3820] v9fs_session_init+0x1e3/0x1990 [ 55.627761][ T3820] v9fs_mount+0xd2/0xcb0 [ 55.631994][ T3820] legacy_get_tree+0xea/0x180 [ 55.636660][ T3820] vfs_get_tree+0x88/0x270 [ 55.641050][ T3820] do_new_mount+0x289/0xad0 [ 55.645526][ T3820] __se_sys_mount+0x2e3/0x3d0 [ 55.650177][ T3820] do_syscall_64+0x2b/0x70 [ 55.654572][ T3820] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.660455][ T3820] [ 55.662755][ T3820] The buggy address belongs to the object at ffff888025572910 [ 55.662755][ T3820] which belongs to the cache kernfs_node_cache of size 168 [ 55.677322][ T3820] The buggy address is located 152 bytes inside of [ 55.677322][ T3820] 168-byte region [ffff888025572910, ffff8880255729b8) [ 55.690575][ T3820] [ 55.692879][ T3820] The buggy address belongs to the physical page: [ 55.699271][ T3820] page:ffffea0000955c80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x25572 [ 55.709399][ T3820] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 55.716926][ T3820] raw: 00fff00000000200 ffffea00008cb1c0 dead000000000005 ffff8880121dbc80 [ 55.725487][ T3820] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000 [ 55.734041][ T3820] page dumped because: kasan: bad access detected [ 55.740436][ T3820] page_owner tracks the page as allocated [ 55.746137][ T3820] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3681, tgid 3681 (syz-executor344), ts 50167607446, free_ts 50165157211 [ 55.764693][ T3820] get_page_from_freelist+0x72b/0x7a0 [ 55.770050][ T3820] __alloc_pages+0x259/0x560 [ 55.774617][ T3820] alloc_slab_page+0x70/0xf0 [ 55.779186][ T3820] allocate_slab+0x5e/0x520 [ 55.783665][ T3820] ___slab_alloc+0x42e/0xce0 [ 55.788233][ T3820] kmem_cache_alloc+0x25d/0x310 [ 55.793059][ T3820] __kernfs_new_node+0xdb/0x730 [ 55.797888][ T3820] kernfs_new_node+0x95/0x160 [ 55.802542][ T3820] __kernfs_create_file+0x45/0x2e0 [ 55.807631][ T3820] sysfs_add_file_mode_ns+0x21d/0x330 [ 55.812981][ T3820] internal_create_group+0x55c/0xf50 [ 55.818239][ T3820] sysfs_slab_add+0x173/0x2a0 [ 55.822893][ T3820] __kmem_cache_create+0x34/0x170 [ 55.827905][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 55.833619][ T3820] p9_client_create+0xbbe/0x1030 [ 55.838543][ T3820] v9fs_session_init+0x1e3/0x1990 [ 55.843546][ T3820] page last free stack trace: [ 55.848195][ T3820] free_pcp_prepare+0x812/0x900 [ 55.853033][ T3820] free_unref_page+0x7d/0x630 [ 55.857694][ T3820] qlist_free_all+0x2b/0x70 [ 55.862181][ T3820] kasan_quarantine_reduce+0x169/0x180 [ 55.867618][ T3820] __kasan_slab_alloc+0x2f/0xe0 [ 55.872449][ T3820] kmem_cache_alloc+0x1a6/0x310 [ 55.877278][ T3820] __kernfs_new_node+0xdb/0x730 [ 55.882109][ T3820] kernfs_new_node+0x95/0x160 [ 55.886768][ T3820] __kernfs_create_file+0x45/0x2e0 [ 55.891870][ T3820] sysfs_add_file_mode_ns+0x21d/0x330 [ 55.897221][ T3820] internal_create_group+0x55c/0xf50 [ 55.902487][ T3820] sysfs_slab_add+0x173/0x2a0 [ 55.907143][ T3820] __kmem_cache_create+0x34/0x170 [ 55.912144][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 55.917839][ T3820] p9_client_create+0xbbe/0x1030 [ 55.922753][ T3820] v9fs_session_init+0x1e3/0x1990 [ 55.927756][ T3820] [ 55.930058][ T3820] Memory state around the buggy address: [ 55.935664][ T3820] ffff888025572880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 55.943702][ T3820] ffff888025572900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb [ 55.951750][ T3820] >ffff888025572980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa [ 55.959787][ T3820] ^ [ 55.965134][ T3820] ffff888025572a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 55.973193][ T3820] ffff888025572a80: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb [ 55.981232][ T3820] ================================================================== [ 55.992017][ T3820] Kernel panic - not syncing: panic_on_warn set ... [ 55.998612][ T3820] CPU: 1 PID: 3820 Comm: syz-executor344 Not tainted 6.0.0-rc7-syzkaller-00042-g46452d3786a8 #0 [ 56.009023][ T3820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 56.019071][ T3820] Call Trace: [ 56.022342][ T3820] [ 56.025274][ T3820] dump_stack_lvl+0x1e3/0x2cb [ 56.029949][ T3820] ? io_alloc_page_table+0x110/0x110 [ 56.035227][ T3820] ? panic+0x76b/0x76b [ 56.039290][ T3820] ? preempt_schedule_common+0xb7/0xe0 [ 56.044731][ T3820] ? preempt_schedule+0xd9/0xe0 [ 56.049565][ T3820] ? vscnprintf+0x59/0x80 [ 56.053883][ T3820] panic+0x316/0x76b [ 56.057773][ T3820] ? fb_is_primary_device+0xcc/0xcc [ 56.062951][ T3820] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 56.068928][ T3820] ? __kernfs_remove+0xf2d/0x1180 [ 56.073948][ T3820] end_report+0x91/0xa0 [ 56.078086][ T3820] kasan_report+0x108/0x130 [ 56.082571][ T3820] ? __kernfs_remove+0xf2d/0x1180 [ 56.087577][ T3820] __kernfs_remove+0xf2d/0x1180 [ 56.092421][ T3820] ? kernfs_iop_rename+0x7d0/0x7d0 [ 56.097530][ T3820] ? kernfs_find_ns+0x4d6/0x550 [ 56.102364][ T3820] kernfs_remove_by_name_ns+0x96/0xe0 [ 56.107727][ T3820] sysfs_slab_add+0x54/0x2a0 [ 56.112299][ T3820] __kmem_cache_create+0x34/0x170 [ 56.117306][ T3820] kmem_cache_create_usercopy+0x1a6/0x340 [ 56.123011][ T3820] p9_client_create+0xbbe/0x1030 [ 56.127954][ T3820] ? do_trace_9p_fid_put+0x20/0x20 [ 56.133058][ T3820] ? lockdep_softirqs_off+0x420/0x420 [ 56.138449][ T3820] ? __raw_spin_lock_init+0x41/0x100 [ 56.143728][ T3820] v9fs_session_init+0x1e3/0x1990 [ 56.148742][ T3820] ? v9fs_show_options+0x600/0x600 [ 56.153838][ T3820] ? kmem_cache_alloc_trace+0x97/0x310 [ 56.159278][ T3820] ? v9fs_mount+0xae/0xcb0 [ 56.163675][ T3820] v9fs_mount+0xd2/0xcb0 [ 56.167911][ T3820] ? xfs_fs_commit_blocks+0x8d0/0x8d0 [ 56.173283][ T3820] ? legacy_init_fs_context+0x4d/0xb0 [ 56.178652][ T3820] ? smack_sb_eat_lsm_opts+0x197/0x990 [ 56.184091][ T3820] ? cap_capable+0x1b5/0x250 [ 56.188662][ T3820] legacy_get_tree+0xea/0x180 [ 56.193326][ T3820] ? xfs_fs_commit_blocks+0x8d0/0x8d0 [ 56.198697][ T3820] vfs_get_tree+0x88/0x270 [ 56.203102][ T3820] do_new_mount+0x289/0xad0 [ 56.207599][ T3820] ? do_move_mount_old+0x160/0x160 [ 56.212700][ T3820] ? user_path_at_empty+0x149/0x1a0 [ 56.217904][ T3820] __se_sys_mount+0x2e3/0x3d0 [ 56.222581][ T3820] ? __x64_sys_mount+0xc0/0xc0 [ 56.227325][ T3820] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 56.233300][ T3820] ? __x64_sys_mount+0x1c/0xc0 [ 56.238054][ T3820] do_syscall_64+0x2b/0x70 [ 56.242481][ T3820] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.248378][ T3820] RIP: 0033:0x7f02e17a9129 [ 56.252784][ T3820] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 56.272394][ T3820] RSP: 002b:00007ffc64ca83b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 56.280809][ T3820] RAX: ffffffffffffffda RBX: 00007ffc64ca83f0 RCX: 00007f02e17a9129 [ 56.288777][ T3820] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000 [ 56.296747][ T3820] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000d669 [ 56.304718][ T3820] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 56.312690][ T3820] R13: 000000000000d669 R14: 00007ffc64ca83dc R15: 00007ffc64ca83e0 [ 56.320667][ T3820] [ 56.323838][ T3820] Kernel Offset: disabled [ 56.328154][ T3820] Rebooting in 86400 seconds..