./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2634095133 <...> Warning: Permanently added '10.128.0.125' (ED25519) to the list of known hosts. execve("./syz-executor2634095133", ["./syz-executor2634095133"], 0x7ffdc166c8c0 /* 10 vars */) = 0 brk(NULL) = 0x55555907c000 brk(0x55555907cd00) = 0x55555907cd00 arch_prctl(ARCH_SET_FS, 0x55555907c380) = 0 set_tid_address(0x55555907c650) = 5817 set_robust_list(0x55555907c660, 24) = 0 rseq(0x55555907cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2634095133", 4096) = 28 getrandom("\x13\x9b\xb8\x0c\x39\x08\xbb\x7f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555907cd00 brk(0x55555909dd00) = 0x55555909dd00 brk(0x55555909e000) = 0x55555909e000 mprotect(0x7fcb17a39000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5818 attached , child_tidptr=0x55555907c650) = 5818 [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5818] set_robust_list(0x55555907c660, 24) = 0 [pid 5818] mkdir("./syzkaller.6Wa5ep", 0700./strace-static-x86_64: Process 5819 attached [pid 5819] set_robust_list(0x55555907c660, 24 [pid 5817] <... clone resumed>, child_tidptr=0x55555907c650) = 5819 [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5819] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5820 attached [pid 5819] mkdir("./syzkaller.LfrTWu", 0700 [pid 5820] set_robust_list(0x55555907c660, 24) = 0 [pid 5819] <... mkdir resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5817] <... clone resumed>, child_tidptr=0x55555907c650) = 5820 [pid 5820] mkdir("./syzkaller.VNAXzi", 0700 [pid 5819] chmod("./syzkaller.LfrTWu", 0777 [pid 5818] chmod("./syzkaller.6Wa5ep", 0777 [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5819] <... chmod resumed>) = 0 [pid 5818] <... chmod resumed>) = 0 [pid 5820] <... mkdir resumed>) = 0 [pid 5818] chdir("./syzkaller.6Wa5ep" [pid 5819] chdir("./syzkaller.LfrTWu" [pid 5820] chmod("./syzkaller.VNAXzi", 0777 [pid 5819] <... chdir resumed>) = 0 [pid 5818] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5821 attached [pid 5819] mkdir("./0", 0777 [pid 5821] set_robust_list(0x55555907c660, 24) = 0 [pid 5818] mkdir("./0", 0777 [pid 5821] mkdir("./syzkaller.LiP9Dn", 0700 [pid 5819] <... mkdir resumed>) = 0 [pid 5820] <... chmod resumed>) = 0 [pid 5817] <... clone resumed>, child_tidptr=0x55555907c650) = 5821 [pid 5817] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5821] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5822 attached [pid 5820] chdir("./syzkaller.VNAXzi" [pid 5819] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5818] <... mkdir resumed>) = 0 [pid 5817] <... clone resumed>, child_tidptr=0x55555907c650) = 5822 [pid 5822] set_robust_list(0x55555907c660, 24 [pid 5821] chmod("./syzkaller.LiP9Dn", 0777 [pid 5820] <... chdir resumed>) = 0 [pid 5819] <... openat resumed>) = 3 [pid 5818] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5822] <... set_robust_list resumed>) = 0 [pid 5821] <... chmod resumed>) = 0 [pid 5818] <... openat resumed>) = 3 [pid 5820] mkdir("./0", 0777 [pid 5819] ioctl(3, LOOP_CLR_FD [pid 5818] ioctl(3, LOOP_CLR_FD [pid 5822] mkdir("./syzkaller.b97AJU", 0700 [pid 5821] chdir("./syzkaller.LiP9Dn" [pid 5820] <... mkdir resumed>) = 0 [pid 5819] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5821] <... chdir resumed>) = 0 [pid 5819] close(3 [pid 5818] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5821] mkdir("./0", 0777 [pid 5820] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5819] <... close resumed>) = 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5821] <... mkdir resumed>) = 0 [pid 5820] <... openat resumed>) = 3 [pid 5819] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5818] close(3 [pid 5821] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 5823 attached [pid 5822] chmod("./syzkaller.b97AJU", 0777 [pid 5820] ioctl(3, LOOP_CLR_FD [pid 5818] <... close resumed>) = 0 [pid 5823] set_robust_list(0x55555907c660, 24 [pid 5822] <... chmod resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5820] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5819] <... clone resumed>, child_tidptr=0x55555907c650) = 5823 [pid 5818] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] <... set_robust_list resumed>) = 0 [pid 5823] chdir("./0" [pid 5822] chdir("./syzkaller.b97AJU" [pid 5823] <... chdir resumed>) = 0 [pid 5822] <... chdir resumed>) = 0 [pid 5820] close(3./strace-static-x86_64: Process 5825 attached [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5822] mkdir("./0", 0777 [pid 5820] <... close resumed>) = 0 [pid 5823] <... prctl resumed>) = 0 [pid 5820] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5823] setpgid(0, 0) = 0 [pid 5822] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5826 attached [pid 5825] set_robust_list(0x55555907c660, 24 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5821] ioctl(3, LOOP_CLR_FD [pid 5820] <... clone resumed>, child_tidptr=0x55555907c650) = 5826 [pid 5826] set_robust_list(0x55555907c660, 24 [pid 5825] <... set_robust_list resumed>) = 0 [pid 5826] <... set_robust_list resumed>) = 0 [pid 5825] chdir("./0" [pid 5823] <... openat resumed>) = 3 [pid 5826] chdir("./0" [pid 5825] <... chdir resumed>) = 0 [pid 5821] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5826] <... chdir resumed>) = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5823] write(3, "1000", 4 [pid 5822] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5818] <... clone resumed>, child_tidptr=0x55555907c650) = 5825 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5825] <... prctl resumed>) = 0 [pid 5823] <... write resumed>) = 4 [pid 5821] close(3 [pid 5826] <... prctl resumed>) = 0 [pid 5825] setpgid(0, 0 [pid 5823] close(3 [pid 5826] setpgid(0, 0 [pid 5825] <... setpgid resumed>) = 0 [pid 5823] <... close resumed>) = 0 [pid 5822] <... openat resumed>) = 3 [pid 5821] <... close resumed>) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5826] <... setpgid resumed>) = 0 [pid 5825] <... openat resumed>) = 3 [pid 5821] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5825] write(3, "1000", 4 [pid 5823] symlink("/dev/binderfs", "./binderfs" [pid 5822] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5827 attached [pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5825] <... write resumed>) = 4 [pid 5823] <... symlink resumed>) = 0 [pid 5822] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5825] close(3) = 0 [pid 5822] close(3executing program [pid 5825] symlink("/dev/binderfs", "./binderfs" [pid 5822] <... close resumed>) = 0 [pid 5822] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5827] set_robust_list(0x55555907c660, 24 [pid 5825] <... symlink resumed>) = 0 [pid 5823] write(1, "executing program\n", 18) = 18 ./strace-static-x86_64: Process 5828 attached [pid 5823] memfd_create("syzkaller", 0 [pid 5821] <... clone resumed>, child_tidptr=0x55555907c650) = 5827 [pid 5828] set_robust_list(0x55555907c660, 24) = 0 [pid 5828] chdir("./0" [pid 5823] <... memfd_create resumed>) = 3 [pid 5822] <... clone resumed>, child_tidptr=0x55555907c650) = 5828 [pid 5823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5828] <... chdir resumed>) = 0 [pid 5823] <... mmap resumed>) = 0x7fcb0f400000 [pid 5828] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5827] <... set_robust_list resumed>) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5825] write(1, "executing program\n", 18executing program [pid 5826] write(3, "1000", 4 [pid 5825] <... write resumed>) = 18 [pid 5828] <... prctl resumed>) = 0 [pid 5828] setpgid(0, 0) = 0 [pid 5827] chdir("./0" [pid 5828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5827] <... chdir resumed>) = 0 [pid 5826] <... write resumed>) = 4 [pid 5825] memfd_create("syzkaller", 0 [pid 5826] close(3 [pid 5827] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5826] <... close resumed>) = 0 [pid 5828] write(3, "1000", 4 [pid 5827] <... prctl resumed>) = 0 [pid 5826] symlink("/dev/binderfs", "./binderfs" [pid 5825] <... memfd_create resumed>) = 3 [pid 5828] <... write resumed>) = 4 [pid 5827] setpgid(0, 0 [pid 5828] close(3 [pid 5827] <... setpgid resumed>) = 0 [pid 5826] <... symlink resumed>) = 0 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5828] <... close resumed>) = 0 [pid 5825] <... mmap resumed>) = 0x7fcb0f400000 [pid 5828] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 5827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5826] write(1, "executing program\n", 18) = 18 [pid 5827] <... openat resumed>) = 3 executing program [pid 5828] write(1, "executing program\n", 18) = 18 [pid 5828] memfd_create("syzkaller", 0 [pid 5827] write(3, "1000", 4 [pid 5826] memfd_create("syzkaller", 0 [pid 5827] <... write resumed>) = 4 [pid 5827] close(3 [pid 5826] <... memfd_create resumed>) = 3 [pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5827] <... close resumed>) = 0 [pid 5828] <... memfd_create resumed>) = 3 [pid 5827] symlink("/dev/binderfs", "./binderfs" [pid 5826] <... mmap resumed>) = 0x7fcb0f400000 [pid 5828] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcb0f400000 [pid 5827] <... symlink resumed>) = 0 [pid 5827] write(1, "executing program\n", 18executing program ) = 18 [pid 5827] memfd_create("syzkaller", 0) = 3 [pid 5827] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcb0f400000 [pid 5825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5823] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5828] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5826] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5827] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216 [pid 5828] <... write resumed>) = 16777216 [pid 5828] munmap(0x7fcb0f400000, 138412032) = 0 [pid 5825] <... write resumed>) = 16777216 [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5825] munmap(0x7fcb0f400000, 138412032 [pid 5828] ioctl(4, LOOP_SET_FD, 3 [pid 5825] <... munmap resumed>) = 0 [pid 5828] <... ioctl resumed>) = 0 [pid 5826] <... write resumed>) = 16777216 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5823] <... write resumed>) = 16777216 [pid 5828] close(3 [pid 5825] <... openat resumed>) = 4 [pid 5823] munmap(0x7fcb0f400000, 138412032 [pid 5828] <... close resumed>) = 0 [ 87.349465][ T5828] loop4: detected capacity change from 0 to 32768 [pid 5825] ioctl(4, LOOP_SET_FD, 3 [pid 5828] close(4) = 0 [pid 5826] munmap(0x7fcb0f400000, 138412032 [pid 5828] mkdir("./file1", 0777) = 0 [pid 5828] mount("/dev/loop4", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5827] <... write resumed>) = 16777216 [pid 5826] <... munmap resumed>) = 0 [pid 5825] <... ioctl resumed>) = 0 [pid 5823] <... munmap resumed>) = 0 [pid 5827] munmap(0x7fcb0f400000, 138412032 [pid 5825] close(3) = 0 [pid 5825] close(4) = 0 [pid 5825] mkdir("./file1", 0777) = 0 [pid 5825] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 87.396100][ T5825] loop0: detected capacity change from 0 to 32768 [ 87.410401][ T5828] ======================================================= [ 87.410401][ T5828] WARNING: The mand mount option has been deprecated and [ 87.410401][ T5828] and is ignored by this kernel. Remove the mand [ 87.410401][ T5828] option from the mount to silence this warning. [ 87.410401][ T5828] ======================================================= [pid 5826] ioctl(4, LOOP_SET_FD, 3 [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5827] <... munmap resumed>) = 0 [pid 5823] <... openat resumed>) = 4 [pid 5826] <... ioctl resumed>) = 0 [pid 5823] ioctl(4, LOOP_SET_FD, 3 [pid 5826] close(3) = 0 [pid 5826] close(4) = 0 [ 87.457046][ T5826] loop2: detected capacity change from 0 to 32768 [pid 5826] mkdir("./file1", 0777) = 0 [pid 5826] mount("/dev/loop2", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5823] <... ioctl resumed>) = 0 [pid 5827] <... openat resumed>) = 4 [pid 5823] close(3 [pid 5827] ioctl(4, LOOP_SET_FD, 3 [pid 5823] <... close resumed>) = 0 [pid 5823] close(4) = 0 [pid 5823] mkdir("./file1", 0777 [pid 5826] <... mount resumed>) = 0 [ 87.501751][ T5823] loop1: detected capacity change from 0 to 32768 [ 87.520266][ T5827] loop3: detected capacity change from 0 to 32768 [pid 5826] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5825] <... mount resumed>) = 0 [pid 5826] <... openat resumed>) = 3 [pid 5825] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5825] chdir("./file1" [pid 5823] <... mkdir resumed>) = 0 [pid 5823] mount("/dev/loop1", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5826] chdir("./file1" [pid 5825] <... chdir resumed>) = 0 [pid 5826] <... chdir resumed>) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5826] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5825] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] exit_group(0 [pid 5826] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5825] <... exit_group resumed>) = ? [pid 5825] +++ exited with 0 +++ [pid 5826] exit_group(0 [pid 5818] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5825, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=27 /* 0.27 s */} --- [pid 5826] <... exit_group resumed>) = ? [pid 5818] restart_syscall(<... resuming interrupted clone ...> [pid 5826] +++ exited with 0 +++ [pid 5818] <... restart_syscall resumed>) = 0 [pid 5820] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5826, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 s */} --- [pid 5818] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... ioctl resumed>) = 0 [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] close(3 [pid 5818] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5827] <... close resumed>) = 0 [pid 5818] <... openat resumed>) = 3 [pid 5828] <... mount resumed>) = 0 [pid 5827] close(4 [pid 5823] <... mount resumed>) = 0 [pid 5818] newfstatat(3, "", [pid 5827] <... close resumed>) = 0 [pid 5823] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5818] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] mkdir("./file1", 0777 [pid 5823] <... openat resumed>) = 3 [pid 5818] getdents64(3, [pid 5827] <... mkdir resumed>) = 0 [pid 5823] chdir("./file1" [pid 5818] <... getdents64 resumed>0x55555907d6f0 /* 4 entries */, 32768) = 112 [pid 5828] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5823] <... chdir resumed>) = 0 [pid 5818] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] <... openat resumed>) = 3 [pid 5827] mount("/dev/loop3", "./file1", "jfs", MS_NOSUID|MS_MANDLOCK|MS_POSIXACL, "discard=0x00000000000000f4,discard=0x000000000000aff9,errors=continue,nointegrity,iocharset=iso8859-"... [pid 5823] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5818] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5828] chdir("./file1" [pid 5823] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5818] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5828] <... chdir resumed>) = 0 [pid 5823] exit_group(0 [pid 5818] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5828] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5823] <... exit_group resumed>) = ? [pid 5820] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5818] unlink("./0/binderfs" [pid 5828] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5827] <... mount resumed>) = 0 [pid 5823] +++ exited with 0 +++ [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5818] <... unlink resumed>) = 0 [pid 5828] exit_group(0 [pid 5827] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY [pid 5820] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5819] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5823, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=21 /* 0.21 s */} --- [pid 5818] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5828] <... exit_group resumed>) = ? [pid 5827] <... openat resumed>) = 3 [pid 5820] <... openat resumed>) = 3 [pid 5819] restart_syscall(<... resuming interrupted clone ...> [pid 5827] chdir("./file1" [pid 5820] newfstatat(3, "", [pid 5827] <... chdir resumed>) = 0 [pid 5819] <... restart_syscall resumed>) = 0 [pid 5827] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5820] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5827] <... openat resumed>) = -1 EBUSY (Device or resource busy) [pid 5820] getdents64(3, [pid 5827] exit_group(0 [pid 5820] <... getdents64 resumed>0x55555907d6f0 /* 4 entries */, 32768) = 112 [pid 5819] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5827] <... exit_group resumed>) = ? [pid 5820] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5827] +++ exited with 0 +++ [pid 5820] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5821] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5827, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=24 /* 0.24 s */} --- [pid 5820] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5819] <... openat resumed>) = 3 [pid 5819] newfstatat(3, "", [pid 5820] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5820] unlink("./0/binderfs" [pid 5819] getdents64(3, [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] <... getdents64 resumed>0x55555907d6f0 /* 4 entries */, 32768) = 112 [pid 5820] <... unlink resumed>) = 0 [pid 5828] +++ exited with 0 +++ [pid 5821] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5820] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5819] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5821] <... openat resumed>) = 3 [pid 5819] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5828, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=25 /* 0.25 s */} --- [pid 5821] newfstatat(3, "", [pid 5819] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5822] restart_syscall(<... resuming interrupted clone ...> [pid 5821] <... newfstatat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5819] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] <... restart_syscall resumed>) = 0 [pid 5821] getdents64(3, [pid 5819] unlink("./0/binderfs" [pid 5821] <... getdents64 resumed>0x55555907d6f0 /* 4 entries */, 32768) = 112 [pid 5819] <... unlink resumed>) = 0 [ 87.649513][ T5820] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN PTI [ 87.661550][ T5820] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 87.669986][ T5820] CPU: 1 UID: 0 PID: 5820 Comm: syz-executor263 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) [ 87.682412][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 87.692474][ T5820] RIP: 0010:lmLogSync+0x1f1/0x9d0 [ 87.697539][ T5820] Code: dc 85 fe 4d 8d 7e d8 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 4d ab e5 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 31 ab e5 fe 49 8b 3f e8 49 1f bc fe [ 87.717152][ T5820] RSP: 0018:ffffc90003f1fa40 EFLAGS: 00010206 [ 87.723227][ T5820] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88802f7e3c00 [ 87.731205][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.739181][ T5820] RBP: ffffc90003f1fb48 R08: ffffc90003f1f99f R09: 0000000000000000 [ 87.747157][ T5820] R10: ffffc90003f1f828 R11: fffff520007e3f34 R12: ffff8880562bf000 [ 87.755132][ T5820] R13: dffffc0000000000 R14: ffff8880339c8638 R15: 0000000000000030 [ 87.763109][ T5820] FS: 000055555907c380(0000) GS:ffff888126203000(0000) knlGS:0000000000000000 [ 87.772042][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.778653][ T5820] CR2: 00005555590856f8 CR3: 0000000027954000 CR4: 00000000003526f0 [ 87.786634][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.794607][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.802583][ T5820] Call Trace: [ 87.805866][ T5820] [ 87.808805][ T5820] ? __pfx___mutex_lock+0x10/0x10 [ 87.813880][ T5820] ? __pfx_lmLogSync+0x10/0x10 [ 87.818656][ T5820] ? __pfx_dquot_writeback_dquots+0x10/0x10 [ 87.824561][ T5820] ? __pfx___writeback_inodes_sb_nr+0x10/0x10 [ 87.830637][ T5820] jfs_syncpt+0x7b/0x90 [ 87.834806][ T5820] jfs_sync_fs+0x87/0xa0 [ 87.839079][ T5820] sync_filesystem+0xeb/0x230 [ 87.843780][ T5820] generic_shutdown_super+0x6f/0x2c0 [ 87.849076][ T5820] kill_block_super+0x44/0x90 [ 87.853769][ T5820] deactivate_locked_super+0xb9/0x130 [ 87.859151][ T5820] cleanup_mnt+0x425/0x4c0 [ 87.863597][ T5820] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.868812][ T5820] task_work_run+0x1d1/0x260 [ 87.873436][ T5820] ? __pfx_task_work_run+0x10/0x10 [ 87.878554][ T5820] ? path_umount+0x249/0xf60 [ 87.883154][ T5820] ptrace_notify+0x281/0x2c0 [ 87.887761][ T5820] ? __pfx_ptrace_notify+0x10/0x10 [ 87.892883][ T5820] ? __pfx_path_umount+0x10/0x10 [ 87.897831][ T5820] ? user_path_at+0x44/0x60 [ 87.902346][ T5820] syscall_exit_work+0xc2/0x1d0 [ 87.907206][ T5820] syscall_exit_to_user_mode_prepare+0x6f/0xe0 [ 87.913397][ T5820] syscall_exit_to_user_mode+0x12/0x120 [ 87.918971][ T5820] do_syscall_64+0x103/0x210 [ 87.923567][ T5820] ? clear_bhb_loop+0x45/0xa0 [ 87.928267][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.934180][ T5820] RIP: 0033:0x7fcb179c05f7 [ 87.938626][ T5820] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 87.958245][ T5820] RSP: 002b:00007ffd5fdfdc48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 87.966667][ T5820] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcb179c05f7 [ 87.974640][ T5820] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd5fdfdd00 [ 87.982615][ T5820] RBP: 00007ffd5fdfdd00 R08: 0000000000000000 R09: 0000000000000000 [ 87.990589][ T5820] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffd5fdfed70 [pid 5821] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5819] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5822] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5821] newfstatat(AT_FDCWD, "./0/binderfs", [pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 5821] <... newfstatat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5822] getdents64(3, [pid 5821] unlink("./0/binderfs" [pid 5822] <... getdents64 resumed>0x55555907d6f0 /* 4 entries */, 32768) = 112 [pid 5822] umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5821] <... unlink resumed>) = 0 [pid 5822] newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 5821] umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW [pid 5822] unlink("./0/binderfs") = 0 [ 87.998565][ T5820] R13: 000055555907d6c0 R14: 431bde82d7b634db R15: 00007ffd5fdfed90 [ 88.006546][ T5820] [ 88.009573][ T5820] Modules linked in: [ 88.014011][ T5820] ---[ end trace 0000000000000000 ]--- [ 88.029419][ T5820] RIP: 0010:lmLogSync+0x1f1/0x9d0 [ 88.034532][ T5820] Code: dc 85 fe 4d 8d 7e d8 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 4d ab e5 fe 4d 8b 3f 49 83 c7 30 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 31 ab e5 fe 49 8b 3f e8 49 1f bc fe [ 88.054690][ T5820] RSP: 0018:ffffc90003f1fa40 EFLAGS: 00010206 [ 88.079011][ T5820] RAX: 0000000000000006 RBX: dffffc0000000000 RCX: ffff88802f7e3c00 [ 88.087493][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 88.095588][ T5820] RBP: ffffc90003f1fb48 R08: ffffc90003f1f99f R09: 0000000000000000 [ 88.103878][ T5820] R10: ffffc90003f1f828 R11: fffff520007e3f34 R12: ffff8880562bf000 [ 88.112082][ T5820] R13: dffffc0000000000 R14: ffff8880339c8638 R15: 0000000000000030 [ 88.120121][ T5820] FS: 000055555907c380(0000) GS:ffff888126103000(0000) knlGS:0000000000000000 [ 88.129126][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.135716][ T5820] CR2: 000055566848b9e8 CR3: 0000000027954000 CR4: 00000000003526f0 [ 88.143763][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.151812][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.159891][ T5820] Kernel panic - not syncing: Fatal exception [ 88.166238][ T5820] Kernel Offset: disabled [ 88.170594][ T5820] Rebooting in 86400 seconds..