./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1239421971 <...> forked to background, child pid 3183 no interfaces have a carrier [ 23.745117][ T3184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 23.755146][ T3184] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.217' (ECDSA) to the list of known hosts. execve("./syz-executor1239421971", ["./syz-executor1239421971"], 0x7ffe9b3dfeb0 /* 10 vars */) = 0 brk(NULL) = 0x55555723a000 brk(0x55555723ad00) = 0x55555723ad00 arch_prctl(ARCH_SET_FS, 0x55555723a3c0) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1239421971", 4096) = 28 brk(0x55555725bd00) = 0x55555725bd00 brk(0x55555725c000) = 0x55555725c000 mprotect(0x7f754e728000, 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=0x7f754e6790a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f754e679c20}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f754e6790a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f754e679c20}, NULL, 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3612 ./strace-static-x86_64: Process 3612 attached [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3613 attached [pid 3611] <... clone resumed>, child_tidptr=0x55555723a690) = 3613 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3614 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3615 ./strace-static-x86_64: Process 3615 attached ./strace-static-x86_64: Process 3614 attached [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3612] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3616 attached [pid 3611] <... clone resumed>, child_tidptr=0x55555723a690) = 3616 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3617 [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3612] ioctl(3, LOOP_CLR_FD [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3612] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3614] <... openat resumed>) = 3 ./strace-static-x86_64: Process 3617 attached [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3615] <... openat resumed>) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 3612] close(3 [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3616] <... openat resumed>) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD [pid 3614] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3617] <... openat resumed>) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD [pid 3615] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3613] <... openat resumed>) = 3 [pid 3612] <... close resumed>) = 0 [pid 3616] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3616] close(3 [pid 3615] close(3 [pid 3613] ioctl(3, LOOP_CLR_FD [pid 3617] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3616] <... close resumed>) = 0 [pid 3617] close(3 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3615] <... close resumed>) = 0 [pid 3613] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3617] <... close resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3613] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3616] <... clone resumed>, child_tidptr=0x55555723a690) = 3618 [pid 3613] <... close resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x55555723a690) = 3619 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3617] <... clone resumed>, child_tidptr=0x55555723a690) = 3620 [pid 3613] <... clone resumed>, child_tidptr=0x55555723a690) = 3621 ./strace-static-x86_64: Process 3620 attached [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] close(3) = 0 [pid 3612] <... clone resumed>, child_tidptr=0x55555723a690) = 3622 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3623 ./strace-static-x86_64: Process 3623 attached [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] setpgid(0, 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 3622 attached [pid 3623] <... prctl resumed>) = 0 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3621 attached ./strace-static-x86_64: Process 3619 attached ./strace-static-x86_64: Process 3618 attached [pid 3623] setpgid(0, 0 [pid 3622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... openat resumed>) = 3 [pid 3623] <... setpgid resumed>) = 0 [pid 3622] <... prctl resumed>) = 0 [pid 3620] write(3, "1000", 4 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3622] setpgid(0, 0 [pid 3621] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3620] <... write resumed>) = 4 [pid 3619] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3623] <... openat resumed>) = 3 [pid 3622] <... setpgid resumed>) = 0 [pid 3621] <... prctl resumed>) = 0 [pid 3620] close(3 [pid 3619] <... prctl resumed>) = 0 [pid 3618] <... prctl resumed>) = 0 [pid 3623] write(3, "1000", 4 [pid 3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3621] setpgid(0, 0 [pid 3620] <... close resumed>) = 0 [pid 3619] setpgid(0, 0 [pid 3618] setpgid(0, 0 [pid 3623] <... write resumed>) = 4 [pid 3622] <... openat resumed>) = 3 [pid 3621] <... setpgid resumed>) = 0 [pid 3620] mkdir("./file0", 0777 [pid 3619] <... setpgid resumed>) = 0 [pid 3618] <... setpgid resumed>) = 0 [pid 3623] close(3 [pid 3622] write(3, "1000", 4 [pid 3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3623] <... close resumed>) = 0 [pid 3622] <... write resumed>) = 4 [pid 3621] <... openat resumed>) = 3 [pid 3620] <... mkdir resumed>) = 0 [pid 3619] <... openat resumed>) = 3 [pid 3618] <... openat resumed>) = 3 [pid 3623] mkdir("./file0", 0777 [pid 3622] close(3 [pid 3621] write(3, "1000", 4 [pid 3620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3619] write(3, "1000", 4 [pid 3618] write(3, "1000", 4 [pid 3623] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3622] <... close resumed>) = 0 [pid 3621] <... write resumed>) = 4 [pid 3620] pipe2( [pid 3619] <... write resumed>) = 4 [pid 3618] <... write resumed>) = 4 [pid 3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3622] mkdir("./file0", 0777 [pid 3621] close(3 [pid 3620] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3619] close(3 [pid 3618] close(3 [pid 3623] pipe2( [pid 3622] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3621] <... close resumed>) = 0 [pid 3620] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3619] <... close resumed>) = 0 [pid 3618] <... close resumed>) = 0 [pid 3623] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] mkdir("./file0", 0777 [pid 3619] mkdir("./file0", 0777 [pid 3618] mkdir("./file0", 0777 [pid 3623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3622] pipe2( [pid 3621] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3619] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3618] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3622] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3621] --- 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] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3621] pipe2( [pid 3619] pipe2( [pid 3618] pipe2( [pid 3621] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3619] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3618] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3618] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3623] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3623] exit_group(0) = ? [pid 3623] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3627 ./strace-static-x86_64: Process 3627 attached [pid 3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3627] setpgid(0, 0) = 0 [pid 3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3627] write(3, "1000", 4) = 4 [pid 3627] close(3) = 0 [pid 3627] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3627] pipe2([3, 4], 0) = 0 [pid 3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3620] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3620] exit_group(0) = ? [pid 3620] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3628 ./strace-static-x86_64: Process 3628 attached [pid 3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3628] setpgid(0, 0) = 0 [pid 3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3628] write(3, "1000", 4) = 4 [pid 3628] close(3) = 0 [pid 3628] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3628] pipe2([3, 4], 0) = 0 [pid 3628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3622] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3622] exit_group(0) = ? [pid 3622] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3612] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3629 ./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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3629] pipe2([3, 4], 0) = 0 [pid 3629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3619] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3619] exit_group(0) = ? [pid 3619] +++ exited with 0 +++ [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 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3630 ./strace-static-x86_64: Process 3630 attached [pid 3627] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3630] setpgid(0, 0) = 0 [pid 3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1000", 4) = 4 [pid 3627] exit_group(0 [pid 3630] close(3 [pid 3627] <... exit_group resumed>) = ? [pid 3630] <... close resumed>) = 0 [pid 3630] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3627] +++ exited with 0 +++ [pid 3630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3630] pipe2( [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3630] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3631 ./strace-static-x86_64: Process 3631 attached [pid 3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3631] setpgid(0, 0) = 0 [pid 3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3631] write(3, "1000", 4) = 4 [pid 3631] close(3) = 0 [pid 3631] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3631] pipe2([3, 4], 0) = 0 [pid 3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3621] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3621] exit_group(0) = ? [pid 3621] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3632 ./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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3632] pipe2( [pid 3618] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3632] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3618] exit_group(0) = ? [pid 3618] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3633 ./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 3629] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3633] <... close resumed>) = 0 [pid 3629] exit_group(0 [pid 3633] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3629] <... exit_group resumed>) = ? [pid 3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3633] pipe2( [pid 3629] +++ exited with 0 +++ [pid 3633] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3634 ./strace-static-x86_64: Process 3634 attached [pid 3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3634] setpgid(0, 0) = 0 [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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3634] pipe2([3, 4], 0) = 0 [pid 3634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3631] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3631] exit_group(0) = ? [pid 3631] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3635 ./strace-static-x86_64: Process 3635 attached [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setpgid(0, 0) = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1000", 4 [pid 3628] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3635] <... write resumed>) = 4 [pid 3635] close(3 [pid 3628] exit_group(0 [pid 3635] <... close resumed>) = 0 [pid 3628] <... exit_group resumed>) = ? [pid 3635] mkdir("./file0", 0777 [pid 3628] +++ exited with 0 +++ [pid 3635] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3635] pipe2( [pid 3617] restart_syscall(<... resuming interrupted clone ...> [pid 3635] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3617] <... restart_syscall resumed>) = 0 [pid 3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3636] pipe2([3, 4], 0) = 0 [pid 3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3630] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3630] exit_group(0) = ? [pid 3630] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3637 ./strace-static-x86_64: Process 3637 attached [pid 3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3637] setpgid(0, 0) = 0 [pid 3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3637] write(3, "1000", 4) = 4 [pid 3637] close(3) = 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([3, 4], 0) = 0 [pid 3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3632] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3632] exit_group(0) = ? [pid 3632] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3638 ./strace-static-x86_64: Process 3638 attached [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3633] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3633] exit_group(0) = ? [pid 3633] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3638] pipe2([3, 4], 0) = 0 [pid 3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3639 ./strace-static-x86_64: Process 3639 attached [pid 3635] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3635] exit_group(0) = ? [pid 3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3639] setpgid(0, 0) = 0 [pid 3635] +++ exited with 0 +++ [pid 3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3639] <... openat resumed>) = 3 [pid 3639] write(3, "1000", 4) = 4 [pid 3639] close(3) = 0 [pid 3639] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3614] <... openat resumed>) = 3 [pid 3639] pipe2( [pid 3614] ioctl(3, LOOP_CLR_FD [pid 3639] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3614] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3640 ./strace-static-x86_64: Process 3640 attached [pid 3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3640] setpgid(0, 0) = 0 [pid 3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3640] write(3, "1000", 4) = 4 [pid 3640] close(3) = 0 [pid 3640] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3640] pipe2([3, 4], 0) = 0 [pid 3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3636] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3636] exit_group(0) = ? [pid 3636] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3641] pipe2([3, 4], 0) = 0 [pid 3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3634] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3634] exit_group(0) = ? [pid 3634] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3612] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3642 ./strace-static-x86_64: Process 3642 attached [pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3642] setpgid(0, 0) = 0 [pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3642] write(3, "1000", 4) = 4 [pid 3642] close(3) = 0 [pid 3642] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3642] pipe2([3, 4], 0) = 0 [pid 3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3637] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3637] exit_group(0) = ? [pid 3637] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 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) = 4 [pid 3643] close(3) = 0 [pid 3643] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3643] pipe2([3, 4], 0) = 0 [pid 3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3638] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3638] exit_group(0) = ? [pid 3638] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3644 ./strace-static-x86_64: Process 3644 attached [pid 3639] <... mount resumed>) = -1 EFAULT (Bad address) [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 3639] exit_group(0 [pid 3644] close(3 [pid 3639] <... exit_group resumed>) = ? [pid 3644] <... close resumed>) = 0 [pid 3644] mkdir("./file0", 0777 [pid 3639] +++ exited with 0 +++ [pid 3644] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3644] pipe2( [pid 3616] restart_syscall(<... resuming interrupted clone ...> [pid 3644] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3616] <... restart_syscall resumed>) = 0 [pid 3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3645 ./strace-static-x86_64: Process 3645 attached [pid 3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3645] setpgid(0, 0 [pid 3641] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3645] <... setpgid resumed>) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3645] pipe2([3, 4], 0) = 0 [pid 3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [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=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3646 [pid 3640] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3640] exit_group(0) = ? [pid 3640] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- ./strace-static-x86_64: Process 3646 attached [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3614] <... clone resumed>, child_tidptr=0x55555723a690) = 3647 [pid 3646] <... prctl resumed>) = 0 [pid 3646] setpgid(0, 0) = 0 [pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3647 attached ) = 3 [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3646] write(3, "1000", 4 [pid 3647] <... prctl resumed>) = 0 [pid 3646] <... write resumed>) = 4 [pid 3647] setpgid(0, 0 [pid 3646] close(3 [pid 3647] <... setpgid resumed>) = 0 [pid 3646] <... close resumed>) = 0 [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3646] mkdir("./file0", 0777 [pid 3647] <... openat resumed>) = 3 [pid 3646] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3647] write(3, "1000", 4 [pid 3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3647] <... write resumed>) = 4 [pid 3646] pipe2( [pid 3647] close(3 [pid 3646] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3647] <... close resumed>) = 0 [pid 3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3647] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3647] pipe2([3, 4], 0) = 0 [pid 3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3642] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3642] exit_group(0) = ? [pid 3642] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3612] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3648] pipe2([3, 4], 0) = 0 [pid 3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3643] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3643] exit_group(0) = ? [pid 3643] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3649 ./strace-static-x86_64: Process 3649 attached [pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3649] setpgid(0, 0) = 0 [pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3649] write(3, "1000", 4) = 4 [pid 3649] close(3) = 0 [pid 3649] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3649] pipe2([3, 4], 0) = 0 [pid 3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3645] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3645] exit_group(0) = ? [pid 3645] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3650 ./strace-static-x86_64: Process 3650 attached [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3650] pipe2([3, 4], 0) = 0 [pid 3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3644] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3644] exit_group(0) = ? [pid 3644] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3613] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3651 ./strace-static-x86_64: Process 3651 attached [pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3651] setpgid(0, 0) = 0 [pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3651] write(3, "1000", 4) = 4 [pid 3651] close(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([3, 4], 0) = 0 [pid 3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3648] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3648] exit_group(0) = ? [pid 3648] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3652 ./strace-static-x86_64: Process 3652 attached [pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3652] setpgid(0, 0) = 0 [pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3652] write(3, "1000", 4) = 4 [pid 3652] close(3) = 0 [pid 3652] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3652] pipe2([3, 4], 0) = 0 [pid 3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3646] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3646] exit_group(0) = ? [pid 3646] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3653 ./strace-static-x86_64: Process 3653 attached [pid 3647] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3647] exit_group(0 [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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3647] <... exit_group resumed>) = ? [pid 3653] pipe2([3, 4], 0) = 0 [pid 3653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3647] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3654 ./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 [pid 3652] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3654] <... openat resumed>) = 3 [pid 3652] exit_group(0 [pid 3654] write(3, "1000", 4 [pid 3652] <... exit_group resumed>) = ? [pid 3654] <... write resumed>) = 4 [pid 3652] +++ exited with 0 +++ [pid 3654] close(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( [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3654] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3655 ./strace-static-x86_64: Process 3655 attached [pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3655] setpgid(0, 0) = 0 [pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3655] write(3, "1000", 4) = 4 [pid 3655] close(3) = 0 [pid 3655] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3655] pipe2([3, 4], 0) = 0 [pid 3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3649] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3649] exit_group(0) = ? [pid 3649] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3656 ./strace-static-x86_64: Process 3656 attached [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3656] setpgid(0, 0) = 0 [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3656] write(3, "1000", 4) = 4 [pid 3656] close(3) = 0 [pid 3656] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3656] pipe2([3, 4], 0) = 0 [pid 3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3651] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3651] exit_group(0) = ? [pid 3651] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3657 ./strace-static-x86_64: Process 3657 attached [pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3657] setpgid(0, 0) = 0 [pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3657] write(3, "1000", 4) = 4 [pid 3657] close(3) = 0 [pid 3657] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3657] pipe2([3, 4], 0) = 0 [pid 3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3650] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3650] exit_group(0) = ? [pid 3650] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3658 [pid 3653] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3653] exit_group(0) = ? [pid 3653] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3617] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3617] close(3) = 0 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3658 attached , child_tidptr=0x55555723a690) = 3659 [pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 3659 attached [pid 3658] setpgid(0, 0) = 0 [pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3658] <... openat resumed>) = 3 [pid 3659] <... prctl resumed>) = 0 [pid 3658] write(3, "1000", 4 [pid 3659] setpgid(0, 0 [pid 3658] <... write resumed>) = 4 [pid 3659] <... setpgid resumed>) = 0 [pid 3658] close(3 [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3658] <... close resumed>) = 0 [pid 3659] <... openat resumed>) = 3 [pid 3658] mkdir("./file0", 0777 [pid 3659] write(3, "1000", 4 [pid 3658] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3659] <... write resumed>) = 4 [pid 3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3659] close(3 [pid 3658] pipe2( [pid 3659] <... close resumed>) = 0 [pid 3658] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3659] mkdir("./file0", 0777 [pid 3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3659] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3659] pipe2([3, 4], 0) = 0 [pid 3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3654] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3654] exit_group(0) = ? [pid 3654] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3660 ./strace-static-x86_64: Process 3660 attached [pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3660] setpgid(0, 0) = 0 [pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3660] write(3, "1000", 4) = 4 [pid 3660] close(3) = 0 [pid 3660] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3657] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3660] pipe2( [pid 3657] exit_group(0 [pid 3660] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3657] <... exit_group resumed>) = ? [pid 3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3657] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3613] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3 [pid 3655] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3613] <... close resumed>) = 0 [pid 3655] exit_group(0) = ? [pid 3655] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3612] restart_syscall(<... resuming interrupted clone ...> [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3612] <... restart_syscall resumed>) = 0 [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3661 [pid 3613] <... clone resumed>, child_tidptr=0x55555723a690) = 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./strace-static-x86_64: Process 3661 attached ) = 3 [pid 3662] write(3, "1000", 4 [pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3662] <... write resumed>) = 4 [pid 3661] <... prctl resumed>) = 0 [pid 3662] close(3 [pid 3661] setpgid(0, 0 [pid 3662] <... close resumed>) = 0 [pid 3661] <... setpgid resumed>) = 0 [pid 3662] mkdir("./file0", 0777 [pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3662] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3661] <... openat resumed>) = 3 [pid 3662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3662] pipe2( [pid 3661] write(3, "1000", 4 [pid 3662] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3661] <... write resumed>) = 4 [pid 3662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3661] close(3) = 0 [pid 3656] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3661] mkdir("./file0", 0777 [pid 3656] exit_group(0 [pid 3661] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3656] <... exit_group resumed>) = ? [pid 3661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3656] +++ exited with 0 +++ [pid 3661] pipe2([3, 4], 0) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3615] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3615] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3615] close(3) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3663 attached , child_tidptr=0x55555723a690) = 3663 [pid 3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3663] setpgid(0, 0 [pid 3659] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3659] exit_group(0) = ? [pid 3659] +++ exited with 0 +++ [pid 3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3617] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3663] <... setpgid resumed>) = 0 [pid 3617] <... openat resumed>) = 3 [pid 3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3617] ioctl(3, LOOP_CLR_FD [pid 3663] <... openat resumed>) = 3 [pid 3617] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3663] write(3, "1000", 4 [pid 3617] close(3 [pid 3663] <... write resumed>) = 4 [pid 3617] <... close resumed>) = 0 [pid 3663] close(3 [pid 3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3663] <... close resumed>) = 0 [pid 3663] mkdir("./file0", 0777 [pid 3617] <... clone resumed>, child_tidptr=0x55555723a690) = 3664 [pid 3663] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3663] pipe2([3, 4], 0) = 0 [pid 3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3664 attached [pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3664] setpgid(0, 0) = 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] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3664] pipe2([3, 4], 0) = 0 [pid 3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3658] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3658] exit_group(0) = ? [pid 3658] +++ exited with 0 +++ [pid 3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3616] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3616] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3616] close(3) = 0 [pid 3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 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 3665] close(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 3662] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3665] pipe2( [pid 3662] exit_group(0 [pid 3665] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3662] <... exit_group resumed>) = ? [pid 3665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3662] +++ exited with 0 +++ [pid 3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 3613] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3613] close(3) = 0 [pid 3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3666 ./strace-static-x86_64: Process 3666 attached [pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3666] setpgid(0, 0) = 0 [pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3666] write(3, "1000", 4) = 4 [pid 3666] close(3) = 0 [pid 3666] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3666] pipe2([3, 4], 0) = 0 [pid 3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3660] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3660] exit_group(0) = ? [pid 3660] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3614] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3614] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 3614] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3614] close(3) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3667 ./strace-static-x86_64: Process 3667 attached [pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3667] setpgid(0, 0) = 0 [pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3667] write(3, "1000", 4) = 4 [pid 3667] close(3) = 0 [pid 3667] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3667] pipe2([3, 4], 0) = 0 [pid 3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," [pid 3661] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3661] exit_group(0) = ? [pid 3661] +++ exited with 0 +++ [pid 3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3612] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3612] close(3) = 0 [pid 3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555723a690) = 3668 syzkaller login: [ 44.984403][ T3663] ================================================================== [ 44.992532][ T3663] BUG: KASAN: use-after-free in __kernfs_remove+0xa09/0xb50 [ 44.999883][ T3663] Read of size 2 at addr ffff88801c960b78 by task syz-executor123/3663 [ 45.008153][ T3663] [ 45.010506][ T3663] CPU: 1 PID: 3663 Comm: syz-executor123 Not tainted 6.0.0-rc5-syzkaller-00089-g6879c2d3b960 #0 [ 45.020946][ T3663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 45.031026][ T3663] Call Trace: [ 45.034304][ T3663] [ 45.037237][ T3663] dump_stack_lvl+0xcd/0x134 [ 45.041882][ T3663] print_report.cold+0x2ba/0x719 [ 45.046889][ T3663] ? __kernfs_remove+0xa09/0xb50 [ 45.051834][ T3663] kasan_report+0xb1/0x1e0 [ 45.056252][ T3663] ? __kernfs_remove+0xa09/0xb50 [ 45.061190][ T3663] __kernfs_remove+0xa09/0xb50 [ 45.065950][ T3663] ? kernfs_next_descendant_post+0x2f0/0x2f0 [ 45.071928][ T3663] ? kernfs_name_hash+0xf1/0x120 [ 45.076865][ T3663] kernfs_remove_by_name_ns+0xa8/0x110 [ 45.082325][ T3663] sysfs_slab_add+0x13e/0x1e0 [ 45.086999][ T3663] __kmem_cache_create+0x509/0x690 [ 45.092103][ T3663] kmem_cache_create_usercopy+0x1f9/0x300 [ 45.097851][ T3663] p9_client_create+0xca5/0x1070 [ 45.102813][ T3663] ? p9_client_rpc+0xce0/0xce0 [ 45.107586][ T3663] ? lockdep_init_map_type+0x21a/0x7f0 [ 45.113050][ T3663] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.118599][ T3663] ? __raw_spin_lock_init+0x36/0x110 [ 45.123891][ T3663] v9fs_session_init+0x1e2/0x1810 [ 45.128921][ T3663] ? find_held_lock+0x2d/0x110 [ 45.133683][ T3663] ? v9fs_show_options+0x780/0x780 [ 45.138804][ T3663] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.144439][ T3663] ? trace_kmalloc+0x32/0x100 [ 45.149123][ T3663] v9fs_mount+0xba/0xc90 [ 45.153367][ T3663] ? v9fs_statfs+0x4d0/0x4d0 [ 45.157957][ T3663] ? apparmor_capable+0x1d8/0x460 [ 45.162987][ T3663] ? v9fs_statfs+0x4d0/0x4d0 [ 45.167582][ T3663] legacy_get_tree+0x105/0x220 [ 45.172361][ T3663] vfs_get_tree+0x89/0x2f0 [ 45.176789][ T3663] path_mount+0x1326/0x1e20 [ 45.181307][ T3663] ? kmem_cache_free+0xeb/0x5b0 [ 45.186163][ T3663] ? finish_automount+0x960/0x960 [ 45.191194][ T3663] ? putname+0xfe/0x140 [ 45.195354][ T3663] __x64_sys_mount+0x27f/0x300 [ 45.200130][ T3663] ? copy_mnt_ns+0xae0/0xae0 [ 45.204726][ T3663] ? lockdep_hardirqs_on+0x79/0x100 [ 45.209929][ T3663] ? _raw_spin_unlock_irq+0x2a/0x40 [ 45.215301][ T3663] ? ptrace_notify+0xfa/0x140 [ 45.219982][ T3663] do_syscall_64+0x35/0xb0 [ 45.224412][ T3663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.230315][ T3663] RIP: 0033:0x7f754e6bbfc9 [ 45.234737][ T3663] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 45.254357][ T3663] RSP: 002b:00007ffde3d2e148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 45.262772][ T3663] RAX: ffffffffffffffda RBX: 00007ffde3d2e180 RCX: 00007f754e6bbfc9 [ 45.270737][ T3663] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000 [ 45.278701][ T3663] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000adc2 [ 45.286670][ T3663] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 45.294635][ T3663] R13: 000000000000adc2 R14: 00007ffde3d2e16c R15: 00007ffde3d2e170 [ 45.302606][ T3663] [ 45.305617][ T3663] [ 45.307930][ T3663] Allocated by task 3661: [ 45.312245][ T3663] kasan_save_stack+0x1e/0x40 [ 45.316926][ T3663] __kasan_slab_alloc+0x90/0xc0 [ 45.321772][ T3663] kmem_cache_alloc+0x267/0x3b0 [ 45.326619][ T3663] __kernfs_new_node+0xd4/0x8b0 [ 45.331465][ T3663] kernfs_create_dir_ns+0x9c/0x220 [ 45.336575][ T3663] sysfs_create_dir_ns+0x127/0x290 [ 45.341678][ T3663] kobject_add_internal+0x2c9/0x8f0 [ 45.346871][ T3663] kobject_init_and_add+0x101/0x160 [ 45.352063][ T3663] sysfs_slab_add+0x161/0x1e0 [ 45.356821][ T3663] __kmem_cache_create+0x509/0x690 [ 45.361927][ T3663] kmem_cache_create_usercopy+0x1f9/0x300 [ 45.367644][ T3663] p9_client_create+0xca5/0x1070 [ 45.372573][ T3663] v9fs_session_init+0x1e2/0x1810 [ 45.377589][ T3663] v9fs_mount+0xba/0xc90 [ 45.381824][ T3663] legacy_get_tree+0x105/0x220 [ 45.386584][ T3663] vfs_get_tree+0x89/0x2f0 [ 45.390995][ T3663] path_mount+0x1326/0x1e20 [ 45.395524][ T3663] __x64_sys_mount+0x27f/0x300 [ 45.400282][ T3663] do_syscall_64+0x35/0xb0 [ 45.404702][ T3663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.410589][ T3663] [ 45.412901][ T3663] Freed by task 3663: [ 45.416866][ T3663] kasan_save_stack+0x1e/0x40 [ 45.421549][ T3663] kasan_set_track+0x21/0x30 [ 45.426508][ T3663] kasan_set_free_info+0x20/0x30 [ 45.431464][ T3663] ____kasan_slab_free+0x166/0x1c0 [ 45.436576][ T3663] slab_free_freelist_hook+0x8b/0x1c0 [ 45.441953][ T3663] kmem_cache_free+0xeb/0x5b0 [ 45.446672][ T3663] kernfs_put.part.0+0x2c4/0x540 [ 45.451606][ T3663] kernfs_put+0x42/0x50 [ 45.455844][ T3663] __kernfs_remove+0x7a6/0xb50 [ 45.460603][ T3663] kernfs_remove_by_name_ns+0xa8/0x110 [ 45.466058][ T3663] sysfs_slab_add+0x13e/0x1e0 [ 45.470732][ T3663] __kmem_cache_create+0x509/0x690 [ 45.475832][ T3663] kmem_cache_create_usercopy+0x1f9/0x300 [ 45.481544][ T3663] p9_client_create+0xca5/0x1070 [ 45.486483][ T3663] v9fs_session_init+0x1e2/0x1810 [ 45.491698][ T3663] v9fs_mount+0xba/0xc90 [ 45.495946][ T3663] legacy_get_tree+0x105/0x220 [ 45.500707][ T3663] vfs_get_tree+0x89/0x2f0 [ 45.505127][ T3663] path_mount+0x1326/0x1e20 [ 45.509623][ T3663] __x64_sys_mount+0x27f/0x300 [ 45.514385][ T3663] do_syscall_64+0x35/0xb0 [ 45.518794][ T3663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.524678][ T3663] [ 45.526991][ T3663] The buggy address belongs to the object at ffff88801c960ae0 [ 45.526991][ T3663] which belongs to the cache kernfs_node_cache of size 168 [ 45.541566][ T3663] The buggy address is located 152 bytes inside of [ 45.541566][ T3663] 168-byte region [ffff88801c960ae0, ffff88801c960b88) [ 45.554943][ T3663] [ 45.557260][ T3663] The buggy address belongs to the physical page: [ 45.563666][ T3663] page:ffffea0000725800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c960 [ 45.573816][ T3663] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 45.581362][ T3663] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888140007b40 [ 45.589943][ T3663] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000 [ 45.598512][ T3663] page dumped because: kasan: bad access detected [ 45.604914][ T3663] page_owner tracks the page as allocated [ 45.610700][ T3663] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3662, tgid 3662 (syz-executor123), ts 44771553074, free_ts 44705313674 [ 45.629386][ T3663] get_page_from_freelist+0x109b/0x2ce0 [ 45.634953][ T3663] __alloc_pages+0x1c7/0x510 [ 45.639538][ T3663] alloc_pages+0x1a6/0x270 [ 45.643949][ T3663] allocate_slab+0x27e/0x3d0 [ 45.648532][ T3663] ___slab_alloc+0x7f1/0xe10 [ 45.653112][ T3663] __slab_alloc.constprop.0+0x4d/0xa0 [ 45.658478][ T3663] kmem_cache_alloc+0x38c/0x3b0 [ 45.663322][ T3663] __kernfs_new_node+0xd4/0x8b0 [ 45.668167][ T3663] kernfs_new_node+0x93/0x120 [ 45.672836][ T3663] kernfs_create_link+0xcb/0x230 [ 45.677776][ T3663] sysfs_do_create_link_sd+0x90/0x140 [ 45.683228][ T3663] sysfs_create_link+0x5f/0xc0 [ 45.688160][ T3663] device_add+0x5de/0x1e90 [ 45.692570][ T3663] device_create_groups_vargs+0x203/0x280 [ 45.698279][ T3663] device_create+0xdf/0x120 [ 45.702774][ T3663] bdi_register_va.part.0+0x9c/0x800 [ 45.708052][ T3663] page last free stack trace: [ 45.712970][ T3663] free_pcp_prepare+0x5e4/0xd20 [ 45.717813][ T3663] free_unref_page_list+0x16f/0xb90 [ 45.723007][ T3663] release_pages+0xbd3/0x1400 [ 45.727677][ T3663] tlb_batch_pages_flush+0xa8/0x1a0 [ 45.732873][ T3663] tlb_finish_mmu+0x147/0x7e0 [ 45.737545][ T3663] exit_mmap+0x1d2/0x490 [ 45.741786][ T3663] __mmput+0x122/0x4b0 [ 45.745854][ T3663] mmput+0x56/0x60 [ 45.749568][ T3663] do_exit+0x9e2/0x29b0 [ 45.753713][ T3663] do_group_exit+0xd2/0x2f0 [ 45.758209][ T3663] __x64_sys_exit_group+0x3a/0x50 [ 45.763227][ T3663] do_syscall_64+0x35/0xb0 [ 45.767634][ T3663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.773518][ T3663] [ 45.775830][ T3663] Memory state around the buggy address: ./strace-static-x86_64: Process 3668 attached [ 45.781445][ T3663] ffff88801c960a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 45.789506][ T3663] ffff88801c960a80: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb [ 45.797576][ T3663] >ffff88801c960b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 45.805629][ T3663] ^ [ 45.813591][ T3663] ffff88801c960b80: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 45.821904][ T3663] ffff88801c960c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 45.829952][ T3663] ================================================================== [pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3668] setpgid(0, 0) = 0 [pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3668] write(3, "1000", 4) = 4 [pid 3668] close(3) = 0 [pid 3668] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3668] pipe2([3, 4], 0) = 0 [ 45.841251][ T3663] Kernel panic - not syncing: panic_on_warn set ... [ 45.847844][ T3663] CPU: 1 PID: 3663 Comm: syz-executor123 Not tainted 6.0.0-rc5-syzkaller-00089-g6879c2d3b960 #0 [ 45.858269][ T3663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 45.868340][ T3663] Call Trace: [ 45.871637][ T3663] [ 45.874579][ T3663] dump_stack_lvl+0xcd/0x134 [ 45.879442][ T3663] panic+0x2c8/0x627 [ 45.883333][ T3663] ? panic_print_sys_info.part.0+0x10b/0x10b [ 45.889339][ T3663] ? preempt_schedule_common+0x59/0xc0 [ 45.895009][ T3663] ? preempt_schedule_thunk+0x16/0x18 [ 45.900669][ T3663] ? __kernfs_remove+0xa09/0xb50 [ 45.905638][ T3663] end_report.part.0+0x3f/0x7c [ 45.910613][ T3663] kasan_report.cold+0xa/0xf [ 45.915246][ T3663] ? __kernfs_remove+0xa09/0xb50 [ 45.920213][ T3663] __kernfs_remove+0xa09/0xb50 [ 45.925007][ T3663] ? kernfs_next_descendant_post+0x2f0/0x2f0 [ 45.931102][ T3663] ? kernfs_name_hash+0xf1/0x120 [ 45.936218][ T3663] kernfs_remove_by_name_ns+0xa8/0x110 [ 45.941972][ T3663] sysfs_slab_add+0x13e/0x1e0 [ 45.946906][ T3663] __kmem_cache_create+0x509/0x690 [ 45.952040][ T3663] kmem_cache_create_usercopy+0x1f9/0x300 [ 45.957784][ T3663] p9_client_create+0xca5/0x1070 [ 45.962747][ T3663] ? p9_client_rpc+0xce0/0xce0 [ 45.967626][ T3663] ? lockdep_init_map_type+0x21a/0x7f0 [ 45.973105][ T3663] ? rcu_read_lock_sched_held+0x3a/0x70 [ 45.978653][ T3663] ? __raw_spin_lock_init+0x36/0x110 [ 45.983963][ T3663] v9fs_session_init+0x1e2/0x1810 [ 45.989033][ T3663] ? find_held_lock+0x2d/0x110 [ 45.993814][ T3663] ? v9fs_show_options+0x780/0x780 [ 45.998933][ T3663] ? rcu_read_lock_sched_held+0x3a/0x70 [ 46.004500][ T3663] ? trace_kmalloc+0x32/0x100 [ 46.009203][ T3663] v9fs_mount+0xba/0xc90 [ 46.013470][ T3663] ? v9fs_statfs+0x4d0/0x4d0 [ 46.018092][ T3663] ? apparmor_capable+0x1d8/0x460 [ 46.023141][ T3663] ? v9fs_statfs+0x4d0/0x4d0 [ 46.027758][ T3663] legacy_get_tree+0x105/0x220 [ 46.032554][ T3663] vfs_get_tree+0x89/0x2f0 [ 46.036975][ T3663] path_mount+0x1326/0x1e20 [ 46.041512][ T3663] ? kmem_cache_free+0xeb/0x5b0 [ 46.046381][ T3663] ? finish_automount+0x960/0x960 [ 46.051404][ T3663] ? putname+0xfe/0x140 [ 46.055567][ T3663] __x64_sys_mount+0x27f/0x300 [ 46.060321][ T3663] ? copy_mnt_ns+0xae0/0xae0 [ 46.064905][ T3663] ? lockdep_hardirqs_on+0x79/0x100 [ 46.070120][ T3663] ? _raw_spin_unlock_irq+0x2a/0x40 [ 46.075347][ T3663] ? ptrace_notify+0xfa/0x140 [ 46.080060][ T3663] do_syscall_64+0x35/0xb0 [ 46.084498][ T3663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.090588][ T3663] RIP: 0033:0x7f754e6bbfc9 [ 46.095017][ T3663] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 46.114664][ T3663] RSP: 002b:00007ffde3d2e148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 46.123118][ T3663] RAX: ffffffffffffffda RBX: 00007ffde3d2e180 RCX: 00007f754e6bbfc9 [ 46.131193][ T3663] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000 [ 46.139183][ T3663] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000adc2 [ 46.147168][ T3663] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 46.155156][ T3663] R13: 000000000000adc2 R14: 00007ffde3d2e16c R15: 00007ffde3d2e170 [ 46.163146][ T3663] [ 46.166847][ T3663] Kernel Offset: disabled [ 46.171198][ T3663] Rebooting in 86400 seconds..