./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor763625101 <...> elf/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5694] exit_group(0 [pid 5704] <... openat resumed>) = 3 [pid 5704] write(3, "1000", 4 [pid 5695] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5694] <... exit_group resumed>) = ? [pid 5704] <... write resumed>) = 4 [pid 5695] creat("./file0/file0", 0202 [pid 5694] +++ exited with 0 +++ [pid 5704] close(3 [pid 5695] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5694, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5704] <... close resumed>) = 0 [pid 5695] exit_group(0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5704] symlink("/dev/binderfs", "./binderfs" [pid 5695] <... exit_group resumed>) = ? [pid 5069] <... restart_syscall resumed>) = 0 [pid 5704] <... symlink resumed>) = 0 [pid 5700] <... mount resumed>) = 0 [pid 5695] +++ exited with 0 +++ [pid 5704] memfd_create("syzkaller", 0 [pid 5700] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5695, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [pid 5704] <... memfd_create resumed>) = 3 [pid 5700] <... openat resumed>) = 3 [pid 5069] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5703] 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"..., 4194304 [pid 5700] chdir("./file0" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 113.760895][ T5700] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 113.778316][ T5700] REISERFS (device loop5): checking transaction log (loop5) [ 113.787314][ T5700] REISERFS (device loop5): Using r5 hash to sort names [ 113.794450][ T5700] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 113.807891][ T5700] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5704] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5700] <... chdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 3 [pid 5700] ioctl(4, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] fstat(3, [pid 5700] <... ioctl resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5700] close(4 [pid 5072] fstat(3, [pid 5069] getdents64(3, [pid 5700] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5700] mkdir("./file1", 000 [pid 5072] getdents64(3, [pid 5069] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5700] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5701] <... write resumed>) = 4194304 [pid 5700] mkdir("./bus", 000 [pid 5072] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./50/binderfs", [pid 5700] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5700] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] lstat("./52/binderfs", [pid 5069] unlink("./50/binderfs" [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5072] unlink("./52/binderfs" [pid 5069] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5701] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5701] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 113.878874][ T5700] overlayfs: upper fs needs to support d_type. [ 113.893400][ T5700] overlayfs: upper fs does not support tmpfile. [ 113.900459][ T5700] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 113.918898][ T5701] loop2: detected capacity change from 0 to 8192 [pid 5701] ioctl(4, LOOP_SET_FD, 3 [pid 5704] 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"..., 4194304 [pid 5703] <... write resumed>) = 4194304 [pid 5701] <... ioctl resumed>) = 0 [pid 5703] munmap(0x7f7f7af80000, 4194304 [pid 5701] close(3 [pid 5703] <... munmap resumed>) = 0 [pid 5701] <... close resumed>) = 0 [pid 5700] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5703] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5701] mkdir("./file0", 0777 [pid 5700] creat("./file0/file0", 0202 [pid 5703] <... openat resumed>) = 4 [pid 5701] <... mkdir resumed>) = 0 [pid 5700] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5703] ioctl(4, LOOP_SET_FD, 3 [pid 5701] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5700] exit_group(0) = ? [pid 5700] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5700, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5073] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./51/binderfs") = 0 [ 113.931519][ T5700] overlayfs: failed to resolve './file0': -2 [ 113.950078][ T5703] loop3: detected capacity change from 0 to 8192 [ 113.963342][ T5701] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5703] <... ioctl resumed>) = 0 [pid 5703] close(3) = 0 [pid 5703] mkdir("./file0", 0777) = 0 [ 113.977818][ T5701] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 113.991545][ T5701] REISERFS (device loop2): using ordered data mode [ 114.012621][ T5701] reiserfs: using flush barriers [pid 5703] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5072] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./50/file0" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] close(3) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] rmdir("./50" [pid 5072] close(4 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./52/file0") = 0 [pid 5069] mkdir("./51", 0777) = 0 [ 114.031025][ T5701] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.048491][ T5703] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5704] <... write resumed>) = 4194304 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./52") = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 114.083896][ T5701] REISERFS (device loop2): checking transaction log (loop2) [ 114.092064][ T5701] REISERFS (device loop2): Using r5 hash to sort names [ 114.104562][ T5704] loop0: detected capacity change from 0 to 8192 [ 114.110992][ T5703] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 114.120429][ T5703] REISERFS (device loop3): using ordered data mode [ 114.127261][ T5703] reiserfs: using flush barriers [pid 5704] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5072] mkdir("./53", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5072] <... mkdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5704] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5704] <... openat resumed>) = 4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] <... close resumed>) = 0 [pid 5704] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5704] <... ioctl resumed>) = 0 [pid 5072] close(3 [pid 5704] close(3 [pid 5072] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5707 [pid 5704] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5704] mkdir("./file0", 0777./strace-static-x86_64: Process 5708 attached ./strace-static-x86_64: Process 5707 attached ) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5708 [pid 5704] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5708] chdir("./53" [pid 5707] chdir("./51" [pid 5708] <... chdir resumed>) = 0 [pid 5707] <... chdir resumed>) = 0 [pid 5708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5701] <... mount resumed>) = 0 [ 114.136426][ T5701] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 114.146545][ T5703] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.149261][ T5701] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5708] <... prctl resumed>) = 0 [pid 5707] <... prctl resumed>) = 0 [pid 5701] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5708] setpgid(0, 0 [pid 5707] setpgid(0, 0 [pid 5708] <... setpgid resumed>) = 0 [pid 5701] <... openat resumed>) = 3 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./51/file0") = 0 [pid 5073] getdents64(3, [pid 5707] <... setpgid resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5701] chdir("./file0" [pid 5073] close(3 [pid 5707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./51") = 0 [pid 5073] mkdir("./52", 0777) = 0 [pid 5708] <... openat resumed>) = 3 [pid 5701] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5708] write(3, "1000", 4 [pid 5707] <... openat resumed>) = 3 [pid 5701] ioctl(4, LOOP_CLR_FD [pid 5073] <... openat resumed>) = 3 [pid 5708] <... write resumed>) = 4 [pid 5707] write(3, "1000", 4 [pid 5701] <... ioctl resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5708] close(3 [pid 5707] <... write resumed>) = 4 [pid 5701] close(4 [pid 5073] <... close resumed>) = 0 [pid 5708] <... close resumed>) = 0 [pid 5707] close(3 [pid 5701] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5708] symlink("/dev/binderfs", "./binderfs" [ 114.175871][ T5704] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.189717][ T5704] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 114.200175][ T5704] REISERFS (device loop0): using ordered data mode [ 114.208138][ T5704] reiserfs: using flush barriers [ 114.216111][ T5704] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5707] <... close resumed>) = 0 [pid 5701] mkdir("./file1", 000./strace-static-x86_64: Process 5710 attached [pid 5708] <... symlink resumed>) = 0 [pid 5707] symlink("/dev/binderfs", "./binderfs" [pid 5701] <... mkdir resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5710 [pid 5708] memfd_create("syzkaller", 0 [pid 5707] <... symlink resumed>) = 0 [pid 5701] mkdir("./bus", 000 [pid 5708] <... memfd_create resumed>) = 3 [pid 5707] memfd_create("syzkaller", 0 [pid 5701] <... mkdir resumed>) = 0 [pid 5710] chdir("./52" [pid 5708] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5707] <... memfd_create resumed>) = 3 [pid 5701] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5710] <... chdir resumed>) = 0 [pid 5708] <... mmap resumed>) = 0x7f7f7af80000 [pid 5707] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 114.233658][ T5704] REISERFS (device loop0): checking transaction log (loop0) [ 114.242227][ T5704] REISERFS (device loop0): Using r5 hash to sort names [ 114.250419][ T5704] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 114.253998][ T5701] overlayfs: upper fs needs to support d_type. [ 114.263580][ T5704] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 114.279369][ T5703] REISERFS (device loop3): checking transaction log (loop3) [pid 5710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5707] <... mmap resumed>) = 0x7f7f7af80000 [pid 5704] <... mount resumed>) = 0 [pid 5710] <... prctl resumed>) = 0 [pid 5710] setpgid(0, 0) = 0 [pid 5710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5710] write(3, "1000", 4 [pid 5704] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5710] <... write resumed>) = 4 [pid 5704] <... openat resumed>) = 3 [pid 5710] close(3) = 0 [pid 5710] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5710] memfd_create("syzkaller", 0) = 3 [pid 5710] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 114.289056][ T5701] overlayfs: upper fs does not support tmpfile. [ 114.296333][ T5703] REISERFS (device loop3): Using r5 hash to sort names [ 114.303882][ T5701] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 114.312153][ T5701] overlayfs: failed to resolve './file0': -2 [ 114.319405][ T5703] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5704] chdir("./file0" [pid 5703] <... mount resumed>) = 0 [pid 5704] <... chdir resumed>) = 0 [pid 5703] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5701] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5704] ioctl(4, LOOP_CLR_FD [pid 5703] <... openat resumed>) = 3 [pid 5701] creat("./file0/file0", 0202 [pid 5704] <... ioctl resumed>) = 0 [pid 5703] chdir("./file0" [pid 5701] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5704] close(4 [pid 5703] <... chdir resumed>) = 0 [pid 5701] exit_group(0 [pid 5708] 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"..., 4194304 [pid 5704] <... close resumed>) = 0 [pid 5703] ioctl(4, LOOP_CLR_FD [pid 5701] <... exit_group resumed>) = ? [pid 5704] mkdir("./file1", 000 [pid 5703] <... ioctl resumed>) = 0 [pid 5704] <... mkdir resumed>) = 0 [pid 5703] close(4 [ 114.332599][ T5703] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5701] +++ exited with 0 +++ [pid 5707] 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"..., 4194304 [pid 5704] mkdir("./bus", 000 [pid 5703] <... close resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5701, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5704] <... mkdir resumed>) = 0 [pid 5703] mkdir("./file1", 000 [pid 5704] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5703] <... mkdir resumed>) = 0 [pid 5070] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5703] mkdir("./bus", 000 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, [pid 5710] 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"..., 4194304 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5703] <... mkdir resumed>) = 0 [pid 5070] lstat("./51/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./51/binderfs") = 0 [pid 5703] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 114.396642][ T5704] overlayfs: upper fs needs to support d_type. [ 114.403428][ T5704] overlayfs: upper fs does not support tmpfile. [ 114.410507][ T5704] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 114.427735][ T5703] overlayfs: upper fs needs to support d_type. [pid 5070] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5708] <... write resumed>) = 4194304 [pid 5708] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5708] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 114.446180][ T5703] overlayfs: upper fs does not support tmpfile. [ 114.454028][ T5703] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 114.468089][ T5704] overlayfs: failed to resolve './file0': -2 [pid 5708] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5704] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5708] close(3 [pid 5707] <... write resumed>) = 4194304 [pid 5704] creat("./file0/file0", 0202 [pid 5708] <... close resumed>) = 0 [pid 5707] munmap(0x7f7f7af80000, 4194304 [pid 5704] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5703] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5708] mkdir("./file0", 0777 [pid 5707] <... munmap resumed>) = 0 [pid 5704] exit_group(0 [pid 5703] creat("./file0/file0", 0202 [pid 5708] <... mkdir resumed>) = 0 [pid 5707] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5704] <... exit_group resumed>) = ? [pid 5703] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5708] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5707] <... openat resumed>) = 4 [pid 5704] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5704, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5707] ioctl(4, LOOP_SET_FD, 3 [pid 5703] exit_group(0 [pid 5068] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, [pid 5703] <... exit_group resumed>) = ? [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5707] <... ioctl resumed>) = 0 [pid 5703] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5703, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] lstat("./51/binderfs", [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [ 114.500880][ T5708] loop4: detected capacity change from 0 to 8192 [ 114.508961][ T5703] overlayfs: failed to resolve './file0': -2 [ 114.532446][ T5707] loop1: detected capacity change from 0 to 8192 [pid 5068] unlink("./51/binderfs") = 0 [pid 5068] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./50", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./50", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5707] close(3 [pid 5071] getdents64(3, [pid 5707] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./50/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./50/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./50/binderfs") = 0 [pid 5070] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./51/file0", [pid 5710] <... write resumed>) = 4194304 [pid 5707] mkdir("./file0", 0777 [pid 5710] munmap(0x7f7f7af80000, 4194304 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5710] <... munmap resumed>) = 0 [ 114.542893][ T5708] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.567309][ T5708] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 114.580082][ T5708] REISERFS (device loop4): using ordered data mode [ 114.587289][ T5708] reiserfs: using flush barriers [pid 5707] <... mkdir resumed>) = 0 [pid 5710] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5707] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... openat resumed>) = 4 [pid 5710] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5710] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./51/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./51") = 0 [pid 5070] mkdir("./52", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5713 [ 114.595735][ T5708] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.614179][ T5708] REISERFS (device loop4): checking transaction log (loop4) [ 114.622761][ T5710] loop5: detected capacity change from 0 to 8192 [ 114.629370][ T5707] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5710] <... ioctl resumed>) = 0 [pid 5710] close(3) = 0 ./strace-static-x86_64: Process 5713 attached [pid 5710] mkdir("./file0", 0777 [pid 5713] chdir("./52" [pid 5710] <... mkdir resumed>) = 0 [pid 5710] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5713] <... chdir resumed>) = 0 [pid 5713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5713] setpgid(0, 0) = 0 [pid 5713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5713] write(3, "1000", 4) = 4 [pid 5713] close(3) = 0 [pid 5713] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5713] memfd_create("syzkaller", 0 [ 114.651542][ T5708] REISERFS (device loop4): Using r5 hash to sort names [ 114.676319][ T5707] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 114.681556][ T5708] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] <... umount2 resumed>) = 0 [pid 5713] <... memfd_create resumed>) = 3 [pid 5713] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./50/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./50/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./50/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5068] lstat("./51/file0", [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] rmdir("./50/file0" [pid 5068] <... openat resumed>) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] fstat(4, [pid 5071] getdents64(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [ 114.686174][ T5707] REISERFS (device loop1): using ordered data mode [ 114.705571][ T5707] reiserfs: using flush barriers [ 114.710546][ T5710] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 114.725256][ T5707] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.741669][ T5710] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5068] getdents64(4, [pid 5071] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... close resumed>) = 0 [pid 5068] getdents64(4, [pid 5071] rmdir("./50" [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] close(4 [pid 5071] mkdir("./51", 0777 [pid 5068] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5068] rmdir("./51/file0" [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] <... rmdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5068] getdents64(3, [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 5071] close(3 [pid 5068] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5068] rmdir("./51" [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... rmdir resumed>) = 0 [pid 5068] mkdir("./52", 0777 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5715 [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 5708] <... mount resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5716 [ 114.751667][ T5707] REISERFS (device loop1): checking transaction log (loop1) [ 114.759318][ T5710] REISERFS (device loop5): using ordered data mode [ 114.767197][ T5707] REISERFS (device loop1): Using r5 hash to sort names [ 114.774327][ T5710] reiserfs: using flush barriers [ 114.783805][ T5708] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5713] 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"..., 4194304./strace-static-x86_64: Process 5716 attached [pid 5716] chdir("./52"./strace-static-x86_64: Process 5715 attached ) = 0 [pid 5716] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5715] chdir("./51" [pid 5716] <... prctl resumed>) = 0 [pid 5715] <... chdir resumed>) = 0 [pid 5716] setpgid(0, 0) = 0 [pid 5715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5715] <... prctl resumed>) = 0 [pid 5715] setpgid(0, 0 [pid 5716] write(3, "1000", 4 [pid 5715] <... setpgid resumed>) = 0 [pid 5716] <... write resumed>) = 4 [pid 5716] close(3 [pid 5715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5716] <... close resumed>) = 0 [pid 5716] symlink("/dev/binderfs", "./binderfs" [pid 5715] <... openat resumed>) = 3 [pid 5716] <... symlink resumed>) = 0 [pid 5715] write(3, "1000", 4 [pid 5716] memfd_create("syzkaller", 0 [pid 5715] <... write resumed>) = 4 [pid 5716] <... memfd_create resumed>) = 3 [pid 5715] close(3 [pid 5716] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5715] <... close resumed>) = 0 [pid 5716] <... mmap resumed>) = 0x7f7f7af80000 [pid 5715] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5715] memfd_create("syzkaller", 0) = 3 [pid 5715] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5708] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5708] chdir("./file0") = 0 [pid 5708] ioctl(4, LOOP_CLR_FD) = 0 [pid 5708] close(4) = 0 [ 114.800059][ T5710] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 114.816787][ T5707] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5708] mkdir("./file1", 000 [pid 5713] <... write resumed>) = 4194304 [pid 5708] <... mkdir resumed>) = 0 [pid 5708] mkdir("./bus", 000 [pid 5713] munmap(0x7f7f7af80000, 4194304 [pid 5708] <... mkdir resumed>) = 0 [pid 5708] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5713] <... munmap resumed>) = 0 [pid 5713] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5713] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5713] close(3) = 0 [pid 5713] mkdir("./file0", 0777) = 0 [ 114.890619][ T5708] overlayfs: upper fs needs to support d_type. [ 114.895923][ T5710] REISERFS (device loop5): checking transaction log (loop5) [ 114.905530][ T5713] loop2: detected capacity change from 0 to 8192 [ 114.912921][ T5707] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 114.919216][ T5713] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5713] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5707] <... mount resumed>) = 0 [pid 5707] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5707] chdir("./file0") = 0 [pid 5707] ioctl(4, LOOP_CLR_FD) = 0 [ 114.936994][ T5713] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 114.944330][ T5710] REISERFS (device loop5): Using r5 hash to sort names [ 114.947473][ T5713] REISERFS (device loop2): using ordered data mode [ 114.953474][ T5710] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 114.960780][ T5713] reiserfs: using flush barriers [ 114.977167][ T5708] overlayfs: upper fs does not support tmpfile. [ 114.977747][ T5708] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5707] close(4 [pid 5716] 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"..., 4194304 [pid 5715] 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"..., 4194304 [pid 5707] <... close resumed>) = 0 [pid 5707] mkdir("./file1", 000) = 0 [pid 5707] mkdir("./bus", 000) = 0 [ 115.008960][ T5708] overlayfs: failed to resolve './file0': -2 [ 115.034301][ T5707] overlayfs: upper fs needs to support d_type. [ 115.035111][ T5710] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 115.040498][ T5707] overlayfs: upper fs does not support tmpfile. [pid 5707] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5708] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5708] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5708] exit_group(0) = ? [pid 5710] <... mount resumed>) = 0 [pid 5708] +++ exited with 0 +++ [pid 5710] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5708, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5710] <... openat resumed>) = 3 [pid 5710] chdir("./file0") = 0 [pid 5072] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5710] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5710] <... ioctl resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, [pid 5710] close(4) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5710] mkdir("./file1", 000 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5710] <... mkdir resumed>) = 0 [pid 5072] lstat("./53/binderfs", [pid 5710] mkdir("./bus", 000 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./53/binderfs") = 0 [pid 5072] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5710] <... mkdir resumed>) = 0 [ 115.063009][ T5713] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.085696][ T5713] REISERFS (device loop2): checking transaction log (loop2) [pid 5710] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5716] <... write resumed>) = 4194304 [pid 5715] <... write resumed>) = 4194304 [ 115.116275][ T5710] overlayfs: upper fs needs to support d_type. [ 115.116359][ T5707] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 115.135229][ T5713] REISERFS (device loop2): Using r5 hash to sort names [ 115.142268][ T5713] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 115.142376][ T5710] overlayfs: upper fs does not support tmpfile. [pid 5715] munmap(0x7f7f7af80000, 4194304 [pid 5716] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5715] <... munmap resumed>) = 0 [pid 5707] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5707] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5707] exit_group(0) = ? [pid 5707] +++ exited with 0 +++ [pid 5713] <... mount resumed>) = 0 [pid 5713] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5713] chdir("./file0") = 0 [pid 5716] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5715] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5707, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5713] ioctl(4, LOOP_CLR_FD) = 0 [pid 5713] close(4 [pid 5716] <... openat resumed>) = 4 [pid 5715] <... openat resumed>) = 4 [pid 5713] <... close resumed>) = 0 [pid 5715] ioctl(4, LOOP_SET_FD, 3 [pid 5716] ioctl(4, LOOP_SET_FD, 3 [pid 5069] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5713] mkdir("./file1", 000) = 0 [pid 5713] mkdir("./bus", 000) = 0 [pid 5713] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5715] <... ioctl resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5715] close(3 [pid 5710] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5715] <... close resumed>) = 0 [pid 5710] creat("./file0/file0", 0202 [pid 5069] <... openat resumed>) = 3 [pid 5715] mkdir("./file0", 0777 [pid 5710] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5710] exit_group(0 [ 115.158602][ T5707] overlayfs: failed to resolve './file0': -2 [ 115.168986][ T5713] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 115.174413][ T5710] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 115.187085][ T5710] overlayfs: failed to resolve './file0': -2 [ 115.205302][ T5715] loop3: detected capacity change from 0 to 8192 [pid 5069] getdents64(3, [pid 5716] <... ioctl resumed>) = 0 [pid 5715] <... mkdir resumed>) = 0 [pid 5710] <... exit_group resumed>) = ? [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5716] close(3 [pid 5715] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... umount2 resumed>) = 0 [pid 5710] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5710, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5069] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] <... close resumed>) = 0 [pid 5072] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5716] <... mkdir resumed>) = 0 [pid 5072] lstat("./53/file0", [pid 5069] lstat("./51/binderfs", [pid 5073] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] unlink("./51/binderfs" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] fstat(3, [pid 5072] <... openat resumed>) = 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] fstat(4, [pid 5073] getdents64(3, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(4, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./52/binderfs", [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 115.218827][ T5716] loop0: detected capacity change from 0 to 8192 [ 115.223372][ T5713] overlayfs: upper fs needs to support d_type. [ 115.237984][ T5713] overlayfs: upper fs does not support tmpfile. [pid 5072] getdents64(4, [pid 5073] unlink("./52/binderfs" [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./53/file0" [pid 5073] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./53") = 0 [pid 5072] mkdir("./54", 0777 [pid 5713] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5713] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5072] <... mkdir resumed>) = 0 [pid 5713] exit_group(0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 115.262895][ T5713] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 115.263132][ T5715] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.275076][ T5713] overlayfs: failed to resolve './file0': -2 [ 115.283532][ T5716] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.295180][ T5715] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5072] close(3 [pid 5713] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5720 ./strace-static-x86_64: Process 5720 attached [pid 5720] chdir("./54" [pid 5713] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5713, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5070] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./52/binderfs") = 0 [pid 5720] <... chdir resumed>) = 0 [pid 5070] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5720] setpgid(0, 0) = 0 [ 115.328192][ T5715] REISERFS (device loop3): using ordered data mode [ 115.335150][ T5715] reiserfs: using flush barriers [ 115.341268][ T5716] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 115.351815][ T5715] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.351862][ T5716] REISERFS (device loop0): using ordered data mode [pid 5720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5720] write(3, "1000", 4) = 4 [pid 5720] close(3) = 0 [ 115.375166][ T5716] reiserfs: using flush barriers [ 115.394872][ T5716] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.397775][ T5715] REISERFS (device loop3): checking transaction log (loop3) [ 115.419898][ T5716] REISERFS (device loop0): checking transaction log (loop0) [pid 5720] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5720] memfd_create("syzkaller", 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5720] <... memfd_create resumed>) = 3 [pid 5069] lstat("./51/file0", [pid 5720] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = 0 [ 115.421675][ T5715] REISERFS (device loop3): Using r5 hash to sort names [ 115.442946][ T5716] REISERFS (device loop0): Using r5 hash to sort names [ 115.461254][ T5716] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5716] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5716] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] lstat("./52/file0", [pid 5069] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5716] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5716] chdir("./file0" [pid 5073] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 5716] <... chdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5716] ioctl(4, LOOP_CLR_FD [pid 5073] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5716] <... ioctl resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 5716] close(4 [pid 5073] fstat(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5716] <... close resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5716] mkdir("./file1", 000 [pid 5073] getdents64(4, [pid 5069] getdents64(4, [pid 5716] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5716] mkdir("./bus", 000 [pid 5073] getdents64(4, [pid 5069] close(4 [pid 5716] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 5716] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 115.471290][ T5715] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 115.475164][ T5716] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] close(4) = 0 [pid 5069] rmdir("./51/file0" [pid 5073] rmdir("./52/file0" [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5720] 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"..., 4194304 [pid 5073] getdents64(3, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5073] close(3 [pid 5069] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] rmdir("./51" [pid 5073] rmdir("./52" [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] mkdir("./52", 0777 [pid 5073] mkdir("./53", 0777 [pid 5069] <... mkdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [ 115.522527][ T5716] overlayfs: upper fs needs to support d_type. [ 115.540352][ T5716] overlayfs: upper fs does not support tmpfile. [pid 5073] close(3 [pid 5069] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5721 attached [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5721 [pid 5721] chdir("./53" [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5722 [pid 5721] <... chdir resumed>) = 0 [pid 5721] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5722 attached [pid 5722] chdir("./52") = 0 [pid 5722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5722] setpgid(0, 0) = 0 [pid 5722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5722] write(3, "1000", 4) = 4 [pid 5721] <... prctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5722] close(3 [pid 5721] setpgid(0, 0 [pid 5722] <... close resumed>) = 0 [pid 5721] <... setpgid resumed>) = 0 [pid 5722] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5722] memfd_create("syzkaller", 0 [pid 5721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5722] <... memfd_create resumed>) = 3 [pid 5722] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5721] <... openat resumed>) = 3 [pid 5722] <... mmap resumed>) = 0x7f7f7af80000 [pid 5721] write(3, "1000", 4 [pid 5720] <... write resumed>) = 4194304 [pid 5716] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5715] <... mount resumed>) = 0 [pid 5070] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5721] <... write resumed>) = 4 [pid 5720] munmap(0x7f7f7af80000, 4194304 [pid 5716] creat("./file0/file0", 0202 [pid 5715] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5721] close(3 [pid 5720] <... munmap resumed>) = 0 [pid 5716] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5715] <... openat resumed>) = 3 [pid 5070] lstat("./52/file0", [pid 5721] <... close resumed>) = 0 [pid 5720] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5716] exit_group(0 [pid 5715] chdir("./file0" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5721] symlink("/dev/binderfs", "./binderfs" [pid 5720] <... openat resumed>) = 4 [pid 5716] <... exit_group resumed>) = ? [pid 5715] <... chdir resumed>) = 0 [ 115.571083][ T5716] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 115.588269][ T5715] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 115.594657][ T5716] overlayfs: failed to resolve './file0': -2 [pid 5070] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5721] <... symlink resumed>) = 0 [pid 5720] ioctl(4, LOOP_SET_FD, 3 [pid 5716] +++ exited with 0 +++ [pid 5715] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5722] 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"..., 4194304 [pid 5721] memfd_create("syzkaller", 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5716, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5721] <... memfd_create resumed>) = 3 [pid 5720] <... ioctl resumed>) = 0 [pid 5715] <... ioctl resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5721] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5720] close(3 [pid 5715] close(4 [pid 5070] <... openat resumed>) = 4 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5721] <... mmap resumed>) = 0x7f7f7af80000 [pid 5720] <... close resumed>) = 0 [pid 5715] <... close resumed>) = 0 [pid 5070] fstat(4, [pid 5720] mkdir("./file0", 0777 [pid 5715] mkdir("./file1", 000 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5720] <... mkdir resumed>) = 0 [pid 5715] <... mkdir resumed>) = 0 [pid 5070] getdents64(4, [pid 5720] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5715] mkdir("./bus", 000 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5715] <... mkdir resumed>) = 0 [pid 5070] getdents64(4, [pid 5715] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [ 115.645489][ T5720] loop4: detected capacity change from 0 to 8192 [ 115.684094][ T5715] overlayfs: upper fs needs to support d_type. [pid 5070] rmdir("./52/file0" [pid 5722] <... write resumed>) = 4194304 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./52" [pid 5722] munmap(0x7f7f7af80000, 4194304 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] mkdir("./53", 0777) = 0 [pid 5722] <... munmap resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5722] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] fstat(3, [pid 5722] <... openat resumed>) = 4 [pid 5722] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] getdents64(3, [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5724 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5722] <... ioctl resumed>) = 0 [pid 5721] 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"..., 4194304 [pid 5068] unlink("./52/binderfs") = 0 [pid 5068] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5722] close(3) = 0 [pid 5722] mkdir("./file0", 0777) = 0 [pid 5722] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 5724 attached [ 115.690322][ T5715] overlayfs: upper fs does not support tmpfile. [ 115.697438][ T5720] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.717510][ T5722] loop1: detected capacity change from 0 to 8192 [ 115.732571][ T5715] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5724] chdir("./53") = 0 [pid 5724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5724] setpgid(0, 0) = 0 [pid 5724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5724] write(3, "1000", 4) = 4 [pid 5721] <... write resumed>) = 4194304 [pid 5724] close(3) = 0 [pid 5724] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5724] memfd_create("syzkaller", 0) = 3 [pid 5724] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5721] munmap(0x7f7f7af80000, 4194304 [pid 5715] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 115.756311][ T5722] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.775057][ T5720] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 115.777113][ T5715] overlayfs: failed to resolve './file0': -2 [ 115.790911][ T5722] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5721] <... munmap resumed>) = 0 [pid 5715] creat("./file0/file0", 0202 [pid 5721] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5715] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5721] <... openat resumed>) = 4 [pid 5715] exit_group(0 [pid 5721] ioctl(4, LOOP_SET_FD, 3 [pid 5715] <... exit_group resumed>) = ? [pid 5715] +++ exited with 0 +++ [pid 5721] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5721] close(3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5715, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5721] <... close resumed>) = 0 [pid 5721] mkdir("./file0", 0777 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5721] <... mkdir resumed>) = 0 [pid 5071] umount2("./51", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] lstat("./52/file0", [pid 5721] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./51", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... openat resumed>) = 4 [pid 5071] umount2("./51/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] fstat(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./51/binderfs", [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 115.800525][ T5722] REISERFS (device loop1): using ordered data mode [ 115.808204][ T5722] reiserfs: using flush barriers [ 115.816337][ T5722] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.833124][ T5721] loop5: detected capacity change from 0 to 8192 [ 115.835369][ T5720] REISERFS (device loop4): using ordered data mode [pid 5068] getdents64(4, [pid 5071] unlink("./51/binderfs" [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... unlink resumed>) = 0 [pid 5068] getdents64(4, [pid 5071] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./52/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [ 115.858043][ T5721] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 115.858913][ T5720] reiserfs: using flush barriers [ 115.872620][ T5722] REISERFS (device loop1): checking transaction log (loop1) [ 115.877730][ T5720] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.900250][ T5720] REISERFS (device loop4): checking transaction log (loop4) [pid 5068] rmdir("./52") = 0 [pid 5068] mkdir("./53", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5727 [ 115.908357][ T5721] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 115.922266][ T5721] REISERFS (device loop5): using ordered data mode [ 115.929142][ T5721] reiserfs: using flush barriers [ 115.935435][ T5721] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 115.936542][ T5720] REISERFS (device loop4): Using r5 hash to sort names [pid 5724] 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"..., 4194304./strace-static-x86_64: Process 5727 attached [pid 5727] chdir("./53") = 0 [pid 5727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5727] setpgid(0, 0) = 0 [pid 5727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5727] write(3, "1000", 4) = 4 [pid 5727] close(3) = 0 [pid 5727] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5727] memfd_create("syzkaller", 0) = 3 [pid 5727] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 115.951939][ T5721] REISERFS (device loop5): checking transaction log (loop5) [ 115.966921][ T5720] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 115.981320][ T5721] REISERFS (device loop5): Using r5 hash to sort names [ 115.988551][ T5722] REISERFS (device loop1): Using r5 hash to sort names [ 115.995645][ T5720] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5720] <... mount resumed>) = 0 [pid 5720] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5720] chdir("./file0") = 0 [pid 5720] ioctl(4, LOOP_CLR_FD) = 0 [pid 5720] close(4) = 0 [pid 5720] mkdir("./file1", 000) = 0 [pid 5720] mkdir("./bus", 000) = 0 [ 116.005345][ T5722] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 116.013644][ T5721] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 116.018487][ T5722] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5720] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5722] <... mount resumed>) = 0 [pid 5722] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5722] chdir("./file0" [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5722] <... chdir resumed>) = 0 [pid 5722] ioctl(4, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5722] <... ioctl resumed>) = 0 [pid 5071] lstat("./51/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5722] close(4 [pid 5071] umount2("./51/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./51/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5722] <... close resumed>) = 0 [ 116.060041][ T5720] overlayfs: upper fs needs to support d_type. [ 116.070590][ T5720] overlayfs: upper fs does not support tmpfile. [ 116.089423][ T5720] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 116.101471][ T5721] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] fstat(4, [pid 5722] mkdir("./file1", 000 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5722] <... mkdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5722] mkdir("./bus", 000 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5727] 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"..., 4194304 [pid 5722] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./51/file0" [pid 5722] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./51") = 0 [pid 5071] mkdir("./52", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5728 ./strace-static-x86_64: Process 5728 attached [pid 5728] chdir("./52") = 0 [pid 5728] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5721] <... mount resumed>) = 0 [pid 5728] <... prctl resumed>) = 0 [pid 5721] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5728] setpgid(0, 0 [pid 5721] <... openat resumed>) = 3 [pid 5728] <... setpgid resumed>) = 0 [pid 5721] chdir("./file0" [pid 5728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5721] <... chdir resumed>) = 0 [pid 5728] <... openat resumed>) = 3 [pid 5721] ioctl(4, LOOP_CLR_FD [pid 5728] write(3, "1000", 4 [pid 5721] <... ioctl resumed>) = 0 [pid 5728] <... write resumed>) = 4 [pid 5721] close(4 [pid 5728] close(3 [pid 5721] <... close resumed>) = 0 [pid 5728] <... close resumed>) = 0 [pid 5721] mkdir("./file1", 000 [pid 5728] symlink("/dev/binderfs", "./binderfs" [pid 5721] <... mkdir resumed>) = 0 [pid 5728] <... symlink resumed>) = 0 [pid 5721] mkdir("./bus", 000 [pid 5728] memfd_create("syzkaller", 0 [pid 5724] <... write resumed>) = 4194304 [pid 5721] <... mkdir resumed>) = 0 [pid 5728] <... memfd_create resumed>) = 3 [ 116.125234][ T5722] overlayfs: upper fs needs to support d_type. [ 116.131473][ T5722] overlayfs: upper fs does not support tmpfile. [ 116.159055][ T5720] overlayfs: failed to resolve './file0': -2 [pid 5721] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5728] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5724] munmap(0x7f7f7af80000, 4194304 [pid 5728] <... mmap resumed>) = 0x7f7f7af80000 [pid 5724] <... munmap resumed>) = 0 [pid 5720] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5724] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5720] creat("./file0/file0", 0202 [pid 5724] <... openat resumed>) = 4 [pid 5724] ioctl(4, LOOP_SET_FD, 3 [pid 5720] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5724] <... ioctl resumed>) = 0 [pid 5720] exit_group(0 [pid 5724] close(3 [pid 5722] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5720] <... exit_group resumed>) = ? [pid 5724] <... close resumed>) = 0 [pid 5722] creat("./file0/file0", 0202 [pid 5724] mkdir("./file0", 0777 [pid 5722] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5720] +++ exited with 0 +++ [pid 5724] <... mkdir resumed>) = 0 [pid 5722] exit_group(0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5720, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5072] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5724] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5722] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5722] +++ exited with 0 +++ [ 116.170238][ T5721] overlayfs: upper fs needs to support d_type. [ 116.179919][ T5722] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 116.190166][ T5724] loop2: detected capacity change from 0 to 8192 [ 116.196868][ T5721] overlayfs: upper fs does not support tmpfile. [ 116.198814][ T5722] overlayfs: failed to resolve './file0': -2 [ 116.204833][ T5721] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5722, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] lstat("./54/binderfs", [pid 5069] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] fstat(3, [pid 5072] unlink("./54/binderfs" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5069] getdents64(3, [pid 5072] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./52/binderfs") = 0 [pid 5069] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 116.234696][ T5724] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.251989][ T5724] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 116.261574][ T5724] REISERFS (device loop2): using ordered data mode [ 116.268123][ T5724] reiserfs: using flush barriers [pid 5728] 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"..., 4194304) = 4194304 [pid 5728] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5727] <... write resumed>) = 4194304 [pid 5727] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5727] ioctl(4, LOOP_SET_FD, 3 [pid 5728] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5721] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 116.304691][ T5721] overlayfs: failed to resolve './file0': -2 [ 116.313284][ T5724] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.318987][ T5727] loop0: detected capacity change from 0 to 8192 [ 116.344318][ T5728] loop3: detected capacity change from 0 to 8192 [pid 5728] ioctl(4, LOOP_SET_FD, 3 [pid 5721] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5721] exit_group(0) = ? [pid 5721] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5721, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./53/binderfs") = 0 [pid 5073] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5728] <... ioctl resumed>) = 0 [pid 5727] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5728] close(3 [pid 5727] close(3 [pid 5072] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5728] <... close resumed>) = 0 [pid 5727] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5728] mkdir("./file0", 0777 [pid 5727] mkdir("./file0", 0777 [pid 5072] lstat("./54/file0", [pid 5069] lstat("./52/file0", [pid 5728] <... mkdir resumed>) = 0 [pid 5727] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5728] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5727] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 4 [pid 5069] <... openat resumed>) = 4 [pid 5072] fstat(4, [ 116.345107][ T5724] REISERFS (device loop2): checking transaction log (loop2) [ 116.373703][ T5724] REISERFS (device loop2): Using r5 hash to sort names [ 116.380776][ T5724] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] fstat(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5069] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5069] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5069] close(4 [pid 5072] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] rmdir("./54/file0" [pid 5069] rmdir("./52/file0" [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] getdents64(3, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5069] close(3 [pid 5072] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] rmdir("./54" [pid 5069] rmdir("./52" [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] mkdir("./55", 0777 [pid 5069] mkdir("./53", 0777 [pid 5724] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [ 116.422606][ T5728] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.436080][ T5724] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 116.436550][ T5727] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5724] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5724] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 3 [pid 5724] chdir("./file0" [pid 5073] lstat("./53/file0", [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] <... openat resumed>) = 3 [pid 5724] <... chdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5724] ioctl(4, LOOP_CLR_FD [pid 5073] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5724] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... close resumed>) = 0 [pid 5069] close(3 [pid 5724] close(4 [pid 5073] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... close resumed>) = 0 [pid 5724] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5724] mkdir("./file1", 000 [pid 5073] fstat(4, [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5732 [pid 5724] <... mkdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5733 [pid 5724] mkdir("./bus", 000 [pid 5073] getdents64(4, [pid 5724] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5724] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./53/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./53") = 0 [pid 5073] mkdir("./54", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5732 attached ) = 3 [ 116.464451][ T5728] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 116.474759][ T5728] REISERFS (device loop3): using ordered data mode [ 116.481874][ T5728] reiserfs: using flush barriers [ 116.485712][ T5727] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 116.501051][ T5724] overlayfs: upper fs needs to support d_type. [ 116.506248][ T5728] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5733 attached [pid 5732] chdir("./55" [pid 5733] chdir("./53" [pid 5732] <... chdir resumed>) = 0 [pid 5733] <... chdir resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5732] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5733] <... prctl resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5733] setpgid(0, 0 [pid 5732] <... prctl resumed>) = 0 [pid 5733] <... setpgid resumed>) = 0 [pid 5732] setpgid(0, 0 [pid 5733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5732] <... setpgid resumed>) = 0 [pid 5733] <... openat resumed>) = 3 [pid 5732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5733] write(3, "1000", 4 [pid 5732] <... openat resumed>) = 3 [pid 5733] <... write resumed>) = 4 [pid 5732] write(3, "1000", 4 [pid 5733] close(3 [pid 5073] close(3 [pid 5733] <... close resumed>) = 0 [pid 5732] <... write resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5733] symlink("/dev/binderfs", "./binderfs" [pid 5732] close(3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5733] <... symlink resumed>) = 0 [pid 5732] <... close resumed>) = 0 [pid 5733] memfd_create("syzkaller", 0 [pid 5732] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5734 ./strace-static-x86_64: Process 5734 attached [pid 5733] <... memfd_create resumed>) = 3 [ 116.524393][ T5728] REISERFS (device loop3): checking transaction log (loop3) [ 116.532838][ T5727] REISERFS (device loop0): using ordered data mode [ 116.534678][ T5724] overlayfs: upper fs does not support tmpfile. [ 116.540673][ T5727] reiserfs: using flush barriers [ 116.551605][ T5728] REISERFS (device loop3): Using r5 hash to sort names [ 116.559468][ T5728] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5732] <... symlink resumed>) = 0 [pid 5733] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5732] memfd_create("syzkaller", 0 [pid 5733] <... mmap resumed>) = 0x7f7f7af80000 [pid 5732] <... memfd_create resumed>) = 3 [pid 5734] chdir("./54" [pid 5732] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5734] <... chdir resumed>) = 0 [pid 5732] <... mmap resumed>) = 0x7f7f7af80000 [pid 5728] <... mount resumed>) = 0 [pid 5734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5728] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5734] <... prctl resumed>) = 0 [pid 5728] <... openat resumed>) = 3 [pid 5734] setpgid(0, 0 [pid 5728] chdir("./file0" [pid 5734] <... setpgid resumed>) = 0 [pid 5728] <... chdir resumed>) = 0 [pid 5734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5728] ioctl(4, LOOP_CLR_FD [pid 5734] <... openat resumed>) = 3 [pid 5728] <... ioctl resumed>) = 0 [pid 5734] write(3, "1000", 4 [pid 5728] close(4 [pid 5724] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5734] <... write resumed>) = 4 [pid 5728] <... close resumed>) = 0 [pid 5724] creat("./file0/file0", 0202 [ 116.572871][ T5728] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 116.609171][ T5724] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 116.618021][ T5724] overlayfs: failed to resolve './file0': -2 [pid 5734] close(3 [pid 5728] mkdir("./file1", 000 [pid 5724] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5734] <... close resumed>) = 0 [pid 5733] 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"..., 4194304 [pid 5732] 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"..., 4194304 [pid 5728] <... mkdir resumed>) = 0 [pid 5724] exit_group(0 [pid 5734] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5728] mkdir("./bus", 000 [pid 5724] <... exit_group resumed>) = ? [pid 5734] memfd_create("syzkaller", 0 [pid 5728] <... mkdir resumed>) = 0 [pid 5724] +++ exited with 0 +++ [pid 5734] <... memfd_create resumed>) = 3 [pid 5728] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5734] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5724, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=16 /* 0.16 s */} --- [pid 5734] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5070] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./53/binderfs") = 0 [ 116.652175][ T5727] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.690161][ T5728] overlayfs: upper fs needs to support d_type. [pid 5070] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5734] 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"..., 4194304 [pid 5733] <... write resumed>) = 4194304 [ 116.720574][ T5727] REISERFS (device loop0): checking transaction log (loop0) [ 116.723452][ T5728] overlayfs: upper fs does not support tmpfile. [ 116.758843][ T5727] REISERFS (device loop0): Using r5 hash to sort names [pid 5732] <... write resumed>) = 4194304 [pid 5733] munmap(0x7f7f7af80000, 4194304 [pid 5732] munmap(0x7f7f7af80000, 4194304 [pid 5733] <... munmap resumed>) = 0 [pid 5728] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5733] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5732] <... munmap resumed>) = 0 [pid 5728] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = 0 [pid 5733] <... openat resumed>) = 4 [pid 5732] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5728] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5733] ioctl(4, LOOP_SET_FD, 3 [pid 5732] <... openat resumed>) = 4 [ 116.772481][ T5728] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 116.793180][ T5728] overlayfs: failed to resolve './file0': -2 [ 116.796612][ T5727] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5728] exit_group(0 [pid 5070] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5733] <... ioctl resumed>) = 0 [pid 5732] ioctl(4, LOOP_SET_FD, 3 [pid 5728] <... exit_group resumed>) = ? [pid 5733] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5732] <... ioctl resumed>) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./53/file0" [pid 5733] <... close resumed>) = 0 [pid 5732] close(3 [pid 5728] +++ exited with 0 +++ [pid 5070] <... rmdir resumed>) = 0 [pid 5733] mkdir("./file0", 0777 [pid 5732] <... close resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5728, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5070] getdents64(3, [pid 5733] <... mkdir resumed>) = 0 [pid 5732] mkdir("./file0", 0777 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5733] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5732] <... mkdir resumed>) = 0 [pid 5070] close(3) = 0 [pid 5734] <... write resumed>) = 4194304 [pid 5732] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5727] <... mount resumed>) = 0 [pid 5070] rmdir("./53" [pid 5734] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5727] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5734] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5727] <... openat resumed>) = 3 [ 116.825171][ T5733] loop1: detected capacity change from 0 to 8192 [ 116.834375][ T5732] loop4: detected capacity change from 0 to 8192 [ 116.852612][ T5727] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 116.852665][ T5733] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5734] ioctl(4, LOOP_SET_FD, 3 [pid 5727] chdir("./file0" [pid 5070] <... rmdir resumed>) = 0 [pid 5727] <... chdir resumed>) = 0 [pid 5727] ioctl(4, LOOP_CLR_FD) = 0 [pid 5727] close(4 [pid 5071] umount2("./52", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./54", 0777 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... mkdir resumed>) = 0 [pid 5727] <... close resumed>) = 0 [pid 5727] mkdir("./file1", 000 [pid 5071] openat(AT_FDCWD, "./52", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5071] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] fstat(3, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(3 [pid 5071] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5734] <... ioctl resumed>) = 0 [ 116.865961][ T5734] loop5: detected capacity change from 0 to 8192 [ 116.876109][ T5733] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 116.890610][ T5733] REISERFS (device loop1): using ordered data mode [ 116.898520][ T5732] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.908914][ T5733] reiserfs: using flush barriers [pid 5071] umount2("./52/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5737 [pid 5071] lstat("./52/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./52/binderfs") = 0 [pid 5071] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5734] close(3) = 0 [pid 5734] mkdir("./file0", 0777) = 0 [pid 5734] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 5737 attached [pid 5737] chdir("./54" [pid 5727] <... mkdir resumed>) = 0 [pid 5737] <... chdir resumed>) = 0 [ 116.924118][ T5732] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 116.933901][ T5732] REISERFS (device loop4): using ordered data mode [ 116.935948][ T5733] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.941161][ T5732] reiserfs: using flush barriers [pid 5737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5737] setpgid(0, 0) = 0 [pid 5737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5737] write(3, "1000", 4) = 4 [pid 5737] close(3) = 0 [pid 5737] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5737] memfd_create("syzkaller", 0) = 3 [pid 5737] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5727] mkdir("./bus", 000 [pid 5737] <... mmap resumed>) = 0x7f7f7af80000 [ 116.962941][ T5732] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 116.984009][ T5733] REISERFS (device loop1): checking transaction log (loop1) [ 116.985393][ T5734] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 116.991840][ T5732] REISERFS (device loop4): checking transaction log (loop4) [ 117.005403][ T5733] REISERFS (device loop1): Using r5 hash to sort names [pid 5727] <... mkdir resumed>) = 0 [pid 5727] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 117.020284][ T5732] REISERFS (device loop4): Using r5 hash to sort names [ 117.031597][ T5727] overlayfs: upper fs needs to support d_type. [ 117.044861][ T5727] overlayfs: upper fs does not support tmpfile. [ 117.045998][ T5734] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 117.057954][ T5732] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 117.073458][ T5734] REISERFS (device loop5): using ordered data mode [ 117.079970][ T5734] reiserfs: using flush barriers [ 117.086242][ T5733] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 117.098962][ T5734] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.115278][ T5733] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5737] 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"..., 4194304 [pid 5733] <... mount resumed>) = 0 [pid 5733] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5732] <... mount resumed>) = 0 [ 117.121559][ T5727] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 117.124735][ T5734] REISERFS (device loop5): checking transaction log (loop5) [ 117.139552][ T5732] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 117.147233][ T5727] overlayfs: failed to resolve './file0': -2 [ 117.155052][ T5734] REISERFS (device loop5): Using r5 hash to sort names [ 117.162147][ T5734] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5737] <... write resumed>) = 4194304 [pid 5733] <... openat resumed>) = 3 [pid 5732] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5737] munmap(0x7f7f7af80000, 4194304 [pid 5733] chdir("./file0" [pid 5732] <... openat resumed>) = 3 [pid 5727] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5737] <... munmap resumed>) = 0 [pid 5734] <... mount resumed>) = 0 [pid 5733] <... chdir resumed>) = 0 [pid 5732] chdir("./file0" [pid 5727] creat("./file0/file0", 0202 [pid 5737] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5734] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5733] ioctl(4, LOOP_CLR_FD [pid 5732] <... chdir resumed>) = 0 [pid 5737] <... openat resumed>) = 4 [pid 5727] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = 0 [pid 5733] <... ioctl resumed>) = 0 [pid 5732] ioctl(4, LOOP_CLR_FD [pid 5734] <... openat resumed>) = 3 [pid 5737] ioctl(4, LOOP_SET_FD, 3 [pid 5733] close(4 [pid 5732] <... ioctl resumed>) = 0 [pid 5727] exit_group(0 [pid 5071] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5727] <... exit_group resumed>) = ? [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5727] +++ exited with 0 +++ [pid 5071] lstat("./52/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5727, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5071] umount2("./52/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... restart_syscall resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./52/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 5068] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5068] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5068] fstat(3, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5737] <... ioctl resumed>) = 0 [pid 5734] chdir("./file0" [pid 5733] <... close resumed>) = 0 [pid 5732] close(4 [pid 5071] close(4 [pid 5068] getdents64(3, [pid 5737] close(3 [pid 5734] <... chdir resumed>) = 0 [pid 5733] mkdir("./file1", 000 [pid 5732] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5737] <... close resumed>) = 0 [pid 5734] ioctl(4, LOOP_CLR_FD [pid 5733] <... mkdir resumed>) = 0 [pid 5732] mkdir("./file1", 000 [pid 5071] rmdir("./52/file0" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5737] mkdir("./file0", 0777 [pid 5734] <... ioctl resumed>) = 0 [pid 5733] mkdir("./bus", 000 [pid 5732] <... mkdir resumed>) = 0 [pid 5737] <... mkdir resumed>) = 0 [pid 5734] close(4 [pid 5733] <... mkdir resumed>) = 0 [pid 5732] mkdir("./bus", 000 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5737] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5734] <... close resumed>) = 0 [ 117.177742][ T5734] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 117.195117][ T5737] loop2: detected capacity change from 0 to 8192 [pid 5733] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5732] <... mkdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5734] mkdir("./file1", 000 [ 117.230033][ T5733] overlayfs: upper fs needs to support d_type. [ 117.236820][ T5737] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.254849][ T5733] overlayfs: upper fs does not support tmpfile. [ 117.262014][ T5733] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 117.263822][ T5732] overlayfs: upper fs needs to support d_type. [pid 5732] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./53/binderfs", [pid 5734] <... mkdir resumed>) = 0 [pid 5734] mkdir("./bus", 000) = 0 [pid 5734] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5733] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... close resumed>) = 0 [pid 5068] unlink("./53/binderfs" [pid 5733] creat("./file0/file0", 0202 [pid 5071] rmdir("./52" [pid 5733] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... unlink resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5733] exit_group(0 [pid 5071] mkdir("./53", 0777 [pid 5068] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5733] <... exit_group resumed>) = ? [pid 5071] <... mkdir resumed>) = 0 [pid 5733] +++ exited with 0 +++ [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5733, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5071] <... openat resumed>) = 3 [pid 5069] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 117.270860][ T5733] overlayfs: failed to resolve './file0': -2 [ 117.281757][ T5737] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 117.285593][ T5734] overlayfs: upper fs needs to support d_type. [ 117.291468][ T5737] REISERFS (device loop2): using ordered data mode [ 117.302459][ T5732] overlayfs: upper fs does not support tmpfile. [ 117.304280][ T5737] reiserfs: using flush barriers [ 117.322211][ T5734] overlayfs: upper fs does not support tmpfile. [pid 5071] close(3) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5740 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5734] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./53/binderfs"./strace-static-x86_64: Process 5740 attached ) = 0 [pid 5740] chdir("./53" [ 117.330479][ T5734] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 117.339566][ T5734] overlayfs: failed to resolve './file0': -2 [ 117.343159][ T5737] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.346902][ T5732] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 117.371553][ T5732] overlayfs: failed to resolve './file0': -2 [pid 5734] creat("./file0/file0", 0202 [pid 5069] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5740] <... chdir resumed>) = 0 [pid 5734] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5732] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5740] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5734] exit_group(0 [pid 5732] creat("./file0/file0", 0202 [pid 5734] <... exit_group resumed>) = ? [pid 5732] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5740] <... prctl resumed>) = 0 [pid 5734] +++ exited with 0 +++ [pid 5732] exit_group(0) = ? [pid 5732] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5732, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5734, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5072] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5740] setpgid(0, 0 [pid 5072] getdents64(3, [pid 5740] <... setpgid resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] lstat("./55/binderfs", [pid 5068] close(4 [pid 5073] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5740] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] unlink("./55/binderfs" [pid 5740] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5740] <... write resumed>) = 4 [pid 5073] <... openat resumed>) = 3 [pid 5072] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5740] close(3 [pid 5073] fstat(3, [pid 5740] <... close resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5740] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(3, [pid 5740] <... symlink resumed>) = 0 [pid 5068] rmdir("./53/file0" [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5740] memfd_create("syzkaller", 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5740] <... memfd_create resumed>) = 3 [pid 5740] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5740] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] unlink("./54/binderfs") = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./53") = 0 [pid 5068] mkdir("./54", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5741 [ 117.384322][ T5737] REISERFS (device loop2): checking transaction log (loop2) [ 117.394453][ T5737] REISERFS (device loop2): Using r5 hash to sort names [ 117.408500][ T5737] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5741 attached [pid 5741] chdir("./54") = 0 [pid 5741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5741] setpgid(0, 0) = 0 [pid 5741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5741] write(3, "1000", 4) = 4 [pid 5741] close(3) = 0 [pid 5741] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5741] memfd_create("syzkaller", 0 [pid 5737] <... mount resumed>) = 0 [pid 5741] <... memfd_create resumed>) = 3 [pid 5737] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5741] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5737] <... openat resumed>) = 3 [pid 5741] <... mmap resumed>) = 0x7f7f7af80000 [pid 5737] chdir("./file0") = 0 [pid 5737] ioctl(4, LOOP_CLR_FD) = 0 [ 117.465929][ T5737] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5737] close(4) = 0 [pid 5737] mkdir("./file1", 000) = 0 [pid 5737] mkdir("./bus", 000) = 0 [pid 5737] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5740] 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"..., 4194304 [pid 5069] rmdir("./53/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [ 117.539299][ T5737] overlayfs: upper fs needs to support d_type. [ 117.553077][ T5737] overlayfs: upper fs does not support tmpfile. [pid 5069] rmdir("./53") = 0 [pid 5069] mkdir("./54", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5072] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./55/file0", [pid 5069] close(3 [pid 5737] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5740] <... write resumed>) = 4194304 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5740] munmap(0x7f7f7af80000, 4194304 [pid 5737] creat("./file0/file0", 0202 [pid 5073] lstat("./54/file0", [pid 5072] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5740] <... munmap resumed>) = 0 [pid 5737] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5742 attached [pid 5741] 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"..., 4194304 [pid 5740] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5737] exit_group(0 [pid 5073] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5742 [pid 5742] chdir("./54" [pid 5740] <... openat resumed>) = 4 [pid 5737] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 4 [pid 5742] <... chdir resumed>) = 0 [pid 5740] ioctl(4, LOOP_SET_FD, 3 [pid 5737] +++ exited with 0 +++ [pid 5073] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 117.587803][ T5737] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 117.603018][ T5737] overlayfs: failed to resolve './file0': -2 [pid 5072] fstat(4, [pid 5073] <... openat resumed>) = 4 [pid 5742] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5740] <... ioctl resumed>) = 0 [pid 5073] fstat(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5737, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5742] <... prctl resumed>) = 0 [pid 5740] close(3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5070] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5742] setpgid(0, 0 [pid 5740] <... close resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5742] <... setpgid resumed>) = 0 [pid 5740] mkdir("./file0", 0777 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5070] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5740] <... mkdir resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5742] <... openat resumed>) = 3 [pid 5740] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5070] <... openat resumed>) = 3 [pid 5742] write(3, "1000", 4 [pid 5073] close(4 [pid 5072] <... close resumed>) = 0 [pid 5070] fstat(3, [pid 5742] <... write resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5072] rmdir("./55/file0" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5742] close(3 [pid 5073] rmdir("./54/file0" [pid 5072] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5742] <... close resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5742] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(3, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5742] <... symlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5742] memfd_create("syzkaller", 0 [pid 5073] close(3 [pid 5072] <... close resumed>) = 0 [pid 5070] lstat("./54/binderfs", [pid 5742] <... memfd_create resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5072] rmdir("./55" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5742] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] rmdir("./54" [pid 5072] <... rmdir resumed>) = 0 [pid 5070] unlink("./54/binderfs" [pid 5742] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... rmdir resumed>) = 0 [ 117.642971][ T5740] loop3: detected capacity change from 0 to 8192 [ 117.670536][ T5740] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.683574][ T5740] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5072] mkdir("./56", 0777 [pid 5070] <... unlink resumed>) = 0 [pid 5073] mkdir("./55", 0777 [pid 5072] <... mkdir resumed>) = 0 [pid 5070] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5073] close(3 [pid 5072] <... close resumed>) = 0 [pid 5741] <... write resumed>) = 4194304 [pid 5073] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5741] munmap(0x7f7f7af80000, 4194304 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5741] <... munmap resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5744 [ 117.692777][ T5740] REISERFS (device loop3): using ordered data mode [ 117.699836][ T5740] reiserfs: using flush barriers ./strace-static-x86_64: Process 5745 attached ./strace-static-x86_64: Process 5744 attached [pid 5742] 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"..., 4194304 [pid 5741] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5745 [pid 5745] chdir("./55" [pid 5744] chdir("./56" [pid 5741] <... openat resumed>) = 4 [pid 5745] <... chdir resumed>) = 0 [pid 5744] <... chdir resumed>) = 0 [pid 5741] ioctl(4, LOOP_SET_FD, 3 [pid 5745] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5745] <... prctl resumed>) = 0 [pid 5744] <... prctl resumed>) = 0 [pid 5745] setpgid(0, 0 [pid 5744] setpgid(0, 0 [pid 5741] <... ioctl resumed>) = 0 [pid 5745] <... setpgid resumed>) = 0 [pid 5744] <... setpgid resumed>) = 0 [pid 5745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5742] <... write resumed>) = 4194304 [pid 5741] close(3 [pid 5745] <... openat resumed>) = 3 [pid 5745] write(3, "1000", 4) = 4 [pid 5745] close(3) = 0 [pid 5744] <... openat resumed>) = 3 [pid 5742] munmap(0x7f7f7af80000, 4194304 [pid 5745] symlink("/dev/binderfs", "./binderfs" [pid 5744] write(3, "1000", 4 [pid 5742] <... munmap resumed>) = 0 [pid 5741] <... close resumed>) = 0 [pid 5744] <... write resumed>) = 4 [pid 5742] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5741] mkdir("./file0", 0777 [pid 5745] <... symlink resumed>) = 0 [pid 5744] close(3 [pid 5742] <... openat resumed>) = 4 [pid 5741] <... mkdir resumed>) = 0 [pid 5745] memfd_create("syzkaller", 0 [pid 5744] <... close resumed>) = 0 [ 117.733150][ T5740] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.762619][ T5741] loop0: detected capacity change from 0 to 8192 [ 117.782028][ T5740] REISERFS (device loop3): checking transaction log (loop3) [pid 5742] ioctl(4, LOOP_SET_FD, 3 [pid 5741] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5745] <... memfd_create resumed>) = 3 [pid 5744] symlink("/dev/binderfs", "./binderfs" [pid 5742] <... ioctl resumed>) = 0 [pid 5745] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5744] <... symlink resumed>) = 0 [pid 5742] close(3 [pid 5744] memfd_create("syzkaller", 0 [pid 5742] <... close resumed>) = 0 [pid 5740] <... mount resumed>) = 0 [ 117.794652][ T5742] loop1: detected capacity change from 0 to 8192 [ 117.801115][ T5740] REISERFS (device loop3): Using r5 hash to sort names [ 117.808285][ T5740] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 117.822055][ T5740] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5744] <... memfd_create resumed>) = 3 [pid 5742] mkdir("./file0", 0777 [pid 5740] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5744] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5742] <... mkdir resumed>) = 0 [pid 5744] <... mmap resumed>) = 0x7f7f7af80000 [pid 5742] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5740] <... openat resumed>) = 3 [pid 5740] chdir("./file0") = 0 [pid 5740] ioctl(4, LOOP_CLR_FD) = 0 [pid 5740] close(4) = 0 [pid 5740] mkdir("./file1", 000) = 0 [pid 5740] mkdir("./bus", 000) = 0 [ 117.832797][ T5741] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.855501][ T5741] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 117.868404][ T5741] REISERFS (device loop0): using ordered data mode [ 117.877289][ T5742] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 117.878624][ T5741] reiserfs: using flush barriers [pid 5740] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5745] 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"..., 4194304 [pid 5744] 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"..., 4194304 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./54/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./54") = 0 [pid 5070] mkdir("./55", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 117.901234][ T5740] overlayfs: upper fs needs to support d_type. [ 117.912945][ T5740] overlayfs: upper fs does not support tmpfile. [ 117.919086][ T5741] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 117.932909][ T5742] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 117.937272][ T5740] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] close(3 [pid 5745] <... write resumed>) = 4194304 [pid 5070] <... close resumed>) = 0 [pid 5745] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5745] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5740] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5745] ioctl(4, LOOP_SET_FD, 3 [pid 5740] creat("./file0/file0", 0202 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5748 [ 117.984886][ T5741] REISERFS (device loop0): checking transaction log (loop0) [ 117.993927][ T5740] overlayfs: failed to resolve './file0': -2 [ 117.995260][ T5741] REISERFS (device loop0): Using r5 hash to sort names [ 118.001233][ T5742] REISERFS (device loop1): using ordered data mode [ 118.013406][ T5742] reiserfs: using flush barriers [ 118.019139][ T5741] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5745] <... ioctl resumed>) = 0 [pid 5744] <... write resumed>) = 4194304 [pid 5740] <... creat resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 5748 attached [pid 5748] chdir("./55") = 0 [pid 5748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5748] setpgid(0, 0) = 0 [pid 5748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5748] write(3, "1000", 4) = 4 [pid 5748] close(3) = 0 [pid 5748] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5745] close(3 [pid 5744] munmap(0x7f7f7af80000, 4194304 [pid 5740] exit_group(0 [pid 5744] <... munmap resumed>) = 0 [pid 5745] <... close resumed>) = 0 [pid 5744] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5740] <... exit_group resumed>) = ? [pid 5745] mkdir("./file0", 0777 [pid 5744] <... openat resumed>) = 4 [pid 5748] memfd_create("syzkaller", 0 [pid 5740] +++ exited with 0 +++ [pid 5748] <... memfd_create resumed>) = 3 [pid 5748] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5745] <... mkdir resumed>) = 0 [pid 5744] ioctl(4, LOOP_SET_FD, 3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5740, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5745] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5748] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] umount2("./53", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5744] <... ioctl resumed>) = 0 [pid 5741] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5744] close(3 [pid 5741] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5744] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./53", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5744] mkdir("./file0", 0777 [pid 5071] <... openat resumed>) = 3 [pid 5744] <... mkdir resumed>) = 0 [pid 5071] fstat(3, [pid 5741] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5741] chdir("./file0") = 0 [pid 5741] ioctl(4, LOOP_CLR_FD) = 0 [ 118.032786][ T5745] loop5: detected capacity change from 0 to 8192 [ 118.034211][ T5742] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.042610][ T5741] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 118.069662][ T5744] loop4: detected capacity change from 0 to 8192 [ 118.077970][ T5742] REISERFS (device loop1): checking transaction log (loop1) [pid 5744] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5741] close(4 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./53/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./53/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./53/binderfs") = 0 [pid 5741] <... close resumed>) = 0 [pid 5071] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5741] mkdir("./file1", 000) = 0 [pid 5741] mkdir("./bus", 000) = 0 [ 118.087826][ T5745] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.105708][ T5741] overlayfs: upper fs needs to support d_type. [ 118.111941][ T5741] overlayfs: upper fs does not support tmpfile. [ 118.117179][ T5742] REISERFS (device loop1): Using r5 hash to sort names [ 118.140465][ T5744] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.142342][ T5745] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 118.169131][ T5741] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 118.180204][ T5741] overlayfs: failed to resolve './file0': -2 [pid 5741] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5748] 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"..., 4194304 [pid 5741] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5741] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 118.185659][ T5742] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 118.188174][ T5744] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 118.208712][ T5744] REISERFS (device loop4): using ordered data mode [ 118.215395][ T5744] reiserfs: using flush barriers [ 118.221748][ T5745] REISERFS (device loop5): using ordered data mode [pid 5741] exit_group(0) = ? [pid 5741] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5741, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5742] <... mount resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5742] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] getdents64(3, [pid 5742] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5742] chdir("./file0" [pid 5068] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 118.223160][ T5744] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.228467][ T5745] reiserfs: using flush barriers [ 118.252042][ T5742] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 118.261316][ T5745] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.278215][ T5745] REISERFS (device loop5): checking transaction log (loop5) [pid 5068] lstat("./54/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./54/binderfs") = 0 [pid 5068] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5742] <... chdir resumed>) = 0 [pid 5742] ioctl(4, LOOP_CLR_FD) = 0 [pid 5742] close(4) = 0 [ 118.289328][ T5745] REISERFS (device loop5): Using r5 hash to sort names [pid 5742] mkdir("./file1", 000) = 0 [pid 5742] mkdir("./bus", 000) = 0 [pid 5742] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./53/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./53/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./53/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5748] <... write resumed>) = 4194304 [ 118.312380][ T5745] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 118.334585][ T5742] overlayfs: upper fs needs to support d_type. [ 118.351730][ T5742] overlayfs: upper fs does not support tmpfile. [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./53/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./53") = 0 [pid 5071] mkdir("./54", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5751 ./strace-static-x86_64: Process 5751 attached [pid 5748] munmap(0x7f7f7af80000, 4194304 [pid 5751] chdir("./54" [pid 5748] <... munmap resumed>) = 0 [pid 5751] <... chdir resumed>) = 0 [pid 5751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5751] setpgid(0, 0) = 0 [pid 5751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5748] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5745] <... mount resumed>) = 0 [pid 5751] write(3, "1000", 4 [ 118.372387][ T5745] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 118.382069][ T5744] REISERFS (device loop4): checking transaction log (loop4) [ 118.393936][ T5742] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 118.402132][ T5742] overlayfs: failed to resolve './file0': -2 [ 118.415276][ T5744] REISERFS (device loop4): Using r5 hash to sort names [pid 5745] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = 0 [pid 5751] <... write resumed>) = 4 [pid 5751] close(3) = 0 [pid 5751] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5751] memfd_create("syzkaller", 0) = 3 [pid 5751] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5748] <... openat resumed>) = 4 [pid 5745] <... openat resumed>) = 3 [pid 5742] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5748] ioctl(4, LOOP_SET_FD, 3 [pid 5745] chdir("./file0" [pid 5742] creat("./file0/file0", 0202 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5744] <... mount resumed>) = 0 [pid 5745] <... chdir resumed>) = 0 [pid 5744] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5748] <... ioctl resumed>) = 0 [pid 5742] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] lstat("./54/file0", [pid 5748] close(3 [pid 5745] ioctl(4, LOOP_CLR_FD [pid 5744] <... openat resumed>) = 3 [pid 5742] exit_group(0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5748] <... close resumed>) = 0 [pid 5745] <... ioctl resumed>) = 0 [pid 5744] chdir("./file0" [pid 5742] <... exit_group resumed>) = ? [pid 5068] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5748] mkdir("./file0", 0777 [pid 5745] close(4 [pid 5744] <... chdir resumed>) = 0 [pid 5742] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5748] <... mkdir resumed>) = 0 [pid 5745] <... close resumed>) = 0 [pid 5744] ioctl(4, LOOP_CLR_FD [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5742, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5751] 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"..., 4194304 [pid 5748] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5745] mkdir("./file1", 000 [pid 5744] <... ioctl resumed>) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5068] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5745] <... mkdir resumed>) = 0 [pid 5744] close(4 [pid 5068] <... openat resumed>) = 4 [pid 5745] mkdir("./bus", 000 [pid 5744] <... close resumed>) = 0 [pid 5068] fstat(4, [pid 5069] <... restart_syscall resumed>) = 0 [pid 5745] <... mkdir resumed>) = 0 [pid 5744] mkdir("./file1", 000 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 118.424783][ T5744] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 118.438799][ T5744] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 118.448640][ T5748] loop2: detected capacity change from 0 to 8192 [pid 5745] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5744] <... mkdir resumed>) = 0 [pid 5068] getdents64(4, [pid 5744] mkdir("./bus", 000 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5744] <... mkdir resumed>) = 0 [pid 5069] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [ 118.485238][ T5745] overlayfs: upper fs needs to support d_type. [ 118.491483][ T5745] overlayfs: upper fs does not support tmpfile. [ 118.498940][ T5748] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.526313][ T5744] overlayfs: upper fs needs to support d_type. [pid 5744] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5751] <... write resumed>) = 4194304 [pid 5068] close(4) = 0 [pid 5068] rmdir("./54/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./54") = 0 [pid 5068] mkdir("./55", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5753 [pid 5751] munmap(0x7f7f7af80000, 4194304 [pid 5069] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5751] <... munmap resumed>) = 0 [pid 5069] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5753 attached [pid 5753] chdir("./55" [pid 5751] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] fstat(3, [pid 5753] <... chdir resumed>) = 0 [pid 5751] <... openat resumed>) = 4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5751] ioctl(4, LOOP_SET_FD, 3 [pid 5745] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] getdents64(3, [pid 5753] <... prctl resumed>) = 0 [pid 5753] setpgid(0, 0) = 0 [pid 5753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5753] write(3, "1000", 4) = 4 [pid 5753] close(3) = 0 [pid 5753] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5753] memfd_create("syzkaller", 0) = 3 [pid 5753] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5751] <... ioctl resumed>) = 0 [pid 5745] creat("./file0/file0", 0202 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5745] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5745] exit_group(0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5745] <... exit_group resumed>) = ? [pid 5069] lstat("./54/binderfs", [pid 5751] close(3 [pid 5745] +++ exited with 0 +++ [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5745, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5069] unlink("./54/binderfs" [pid 5751] <... close resumed>) = 0 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 5069] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5751] mkdir("./file0", 0777 [pid 5073] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5751] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5751] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./55/binderfs") = 0 [ 118.532530][ T5744] overlayfs: upper fs does not support tmpfile. [ 118.537108][ T5745] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 118.551933][ T5745] overlayfs: failed to resolve './file0': -2 [ 118.560093][ T5748] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 118.570074][ T5751] loop3: detected capacity change from 0 to 8192 [ 118.571692][ T5744] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5073] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 118.611179][ T5748] REISERFS (device loop2): using ordered data mode [ 118.619096][ T5751] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.646281][ T5748] reiserfs: using flush barriers [pid 5753] 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"..., 4194304 [pid 5744] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5744] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5744] exit_group(0) = ? [pid 5744] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5744, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./56/binderfs") = 0 [ 118.657790][ T5744] overlayfs: failed to resolve './file0': -2 [ 118.665328][ T5751] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 118.676337][ T5751] REISERFS (device loop3): using ordered data mode [pid 5072] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... write resumed>) = 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 5753] munmap(0x7f7f7af80000, 4194304 [pid 5069] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... munmap resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5753] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] lstat("./54/file0", [pid 5753] <... openat resumed>) = 4 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 118.703952][ T5751] reiserfs: using flush barriers [ 118.715007][ T5748] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.725609][ T5753] loop0: detected capacity change from 0 to 8192 [ 118.738049][ T5748] REISERFS (device loop2): checking transaction log (loop2) [pid 5753] ioctl(4, LOOP_SET_FD, 3 [pid 5069] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... ioctl resumed>) = 0 [pid 5753] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5753] <... close resumed>) = 0 [pid 5753] mkdir("./file0", 0777 [pid 5069] <... openat resumed>) = 4 [pid 5753] <... mkdir resumed>) = 0 [pid 5069] fstat(4, [pid 5753] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 118.739209][ T5751] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 118.746481][ T5748] REISERFS (device loop2): Using r5 hash to sort names [ 118.784729][ T5748] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./54/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./54") = 0 [pid 5069] mkdir("./55", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5073] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [ 118.798763][ T5753] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 118.812907][ T5753] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 118.822252][ T5748] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5756 [pid 5748] <... mount resumed>) = 0 [pid 5073] fstat(4, [pid 5748] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5748] chdir("./file0" [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5748] <... chdir resumed>) = 0 [pid 5748] ioctl(4, LOOP_CLR_FD) = 0 [pid 5073] getdents64(4, [pid 5748] close(4) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5748] mkdir("./file1", 000 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./55/file0" [pid 5748] <... mkdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5748] mkdir("./bus", 000 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./55" [pid 5748] <... mkdir resumed>) = 0 [pid 5748] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./56", 0777) = 0 [ 118.849227][ T5753] REISERFS (device loop0): using ordered data mode [ 118.856466][ T5753] reiserfs: using flush barriers [ 118.874421][ T5751] REISERFS (device loop3): checking transaction log (loop3) [ 118.883781][ T5751] REISERFS (device loop3): Using r5 hash to sort names [ 118.890987][ T5751] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 5756 attached [pid 5751] <... mount resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5756] chdir("./55" [pid 5751] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5757 [ 118.896354][ T5748] overlayfs: upper fs needs to support d_type. [ 118.903822][ T5751] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 118.924595][ T5748] overlayfs: upper fs does not support tmpfile. [ 118.931903][ T5748] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 118.935305][ T5753] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 ./strace-static-x86_64: Process 5757 attached [pid 5756] <... chdir resumed>) = 0 [pid 5751] <... openat resumed>) = 3 [pid 5748] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5757] chdir("./56" [pid 5756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5751] chdir("./file0" [pid 5748] creat("./file0/file0", 0202 [pid 5072] lstat("./56/file0", [pid 5757] <... chdir resumed>) = 0 [pid 5756] <... prctl resumed>) = 0 [pid 5751] <... chdir resumed>) = 0 [pid 5748] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5756] setpgid(0, 0 [pid 5751] ioctl(4, LOOP_CLR_FD [pid 5748] exit_group(0 [pid 5072] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5757] <... prctl resumed>) = 0 [pid 5757] setpgid(0, 0) = 0 [pid 5757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5756] <... setpgid resumed>) = 0 [pid 5751] <... ioctl resumed>) = 0 [pid 5748] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5757] write(3, "1000", 4 [pid 5756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5757] <... write resumed>) = 4 [pid 5756] <... openat resumed>) = 3 [pid 5757] close(3 [pid 5756] write(3, "1000", 4 [pid 5757] <... close resumed>) = 0 [pid 5756] <... write resumed>) = 4 [pid 5757] symlink("/dev/binderfs", "./binderfs" [pid 5756] close(3 [pid 5757] <... symlink resumed>) = 0 [pid 5756] <... close resumed>) = 0 [pid 5757] memfd_create("syzkaller", 0 [pid 5756] symlink("/dev/binderfs", "./binderfs" [ 118.941046][ T5748] overlayfs: failed to resolve './file0': -2 [ 118.962434][ T5753] REISERFS (device loop0): checking transaction log (loop0) [ 118.972704][ T5753] REISERFS (device loop0): Using r5 hash to sort names [ 118.980597][ T5753] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 118.994865][ T5753] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5751] close(4 [pid 5757] <... memfd_create resumed>) = 3 [pid 5756] <... symlink resumed>) = 0 [pid 5753] <... mount resumed>) = 0 [pid 5751] <... close resumed>) = 0 [pid 5748] +++ exited with 0 +++ [pid 5072] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5757] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5756] memfd_create("syzkaller", 0 [pid 5753] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5751] mkdir("./file1", 000 [pid 5072] <... openat resumed>) = 4 [pid 5757] <... mmap resumed>) = 0x7f7f7af80000 [pid 5756] <... memfd_create resumed>) = 3 [pid 5753] <... openat resumed>) = 3 [pid 5751] <... mkdir resumed>) = 0 [pid 5072] fstat(4, [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5748, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5753] chdir("./file0" [pid 5751] mkdir("./bus", 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... chdir resumed>) = 0 [pid 5751] <... mkdir resumed>) = 0 [pid 5072] getdents64(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5753] ioctl(4, LOOP_CLR_FD [pid 5751] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5756] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5753] <... ioctl resumed>) = 0 [pid 5072] getdents64(4, [pid 5070] <... openat resumed>) = 3 [pid 5756] <... mmap resumed>) = 0x7f7f7af80000 [pid 5753] close(4 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] fstat(3, [pid 5753] <... close resumed>) = 0 [pid 5072] close(4 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5753] mkdir("./file1", 000 [pid 5072] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 5753] <... mkdir resumed>) = 0 [pid 5072] rmdir("./56/file0" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5753] mkdir("./bus", 000 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... mkdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5753] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] lstat("./55/binderfs", [pid 5072] close(3 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] unlink("./55/binderfs" [pid 5072] rmdir("./56" [pid 5070] <... unlink resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] mkdir("./57", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5758 [ 119.012643][ T5751] overlayfs: upper fs needs to support d_type. [ 119.021447][ T5751] overlayfs: upper fs does not support tmpfile. [ 119.033682][ T5753] overlayfs: upper fs needs to support d_type. [ 119.040028][ T5753] overlayfs: upper fs does not support tmpfile. ./strace-static-x86_64: Process 5758 attached [pid 5758] chdir("./57") = 0 [pid 5758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5758] setpgid(0, 0) = 0 [pid 5758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5758] write(3, "1000", 4) = 4 [pid 5758] close(3) = 0 [pid 5758] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5758] memfd_create("syzkaller", 0) = 3 [pid 5758] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 119.057773][ T5751] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5756] 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"..., 4194304 [pid 5757] 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"..., 4194304 [pid 5751] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5751] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5751] exit_group(0) = ? [pid 5751] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5751, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5071] umount2("./54", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 119.086420][ T5753] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 119.097361][ T5751] overlayfs: failed to resolve './file0': -2 [ 119.121175][ T5753] overlayfs: failed to resolve './file0': -2 [pid 5071] openat(AT_FDCWD, "./54", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5753] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5753] creat("./file0/file0", 0202 [pid 5071] <... openat resumed>) = 3 [pid 5753] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] fstat(3, [pid 5070] <... umount2 resumed>) = 0 [pid 5753] exit_group(0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5753] <... exit_group resumed>) = ? [pid 5071] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5753] +++ exited with 0 +++ [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] lstat("./55/file0", [pid 5071] umount2("./54/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5753, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./54/binderfs", [pid 5070] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] unlink("./54/binderfs" [pid 5070] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5757] <... write resumed>) = 4194304 [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5068] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5757] munmap(0x7f7f7af80000, 4194304 [pid 5071] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5757] <... munmap resumed>) = 0 [pid 5757] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, [pid 5068] <... openat resumed>) = 3 [pid 5757] <... openat resumed>) = 4 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] fstat(3, [pid 5757] ioctl(4, LOOP_SET_FD, 3 [pid 5070] getdents64(4, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5758] 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"..., 4194304 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5068] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./55/file0" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5757] <... ioctl resumed>) = 0 [pid 5757] close(3 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5757] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5757] mkdir("./file0", 0777 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./55/binderfs", [pid 5757] <... mkdir resumed>) = 0 [pid 5070] close(3 [pid 5757] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] unlink("./55/binderfs" [pid 5070] rmdir("./55" [pid 5068] <... unlink resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./56", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [ 119.212488][ T5757] loop5: detected capacity change from 0 to 8192 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5760 ./strace-static-x86_64: Process 5760 attached [pid 5756] <... write resumed>) = 4194304 [pid 5760] chdir("./56" [pid 5756] munmap(0x7f7f7af80000, 4194304 [pid 5760] <... chdir resumed>) = 0 [pid 5760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5760] setpgid(0, 0) = 0 [pid 5760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5760] write(3, "1000", 4) = 4 [pid 5760] close(3) = 0 [pid 5756] <... munmap resumed>) = 0 [pid 5760] symlink("/dev/binderfs", "./binderfs" [pid 5756] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... umount2 resumed>) = 0 [pid 5760] <... symlink resumed>) = 0 [pid 5756] <... openat resumed>) = 4 [ 119.257561][ T5757] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5756] ioctl(4, LOOP_SET_FD, 3 [pid 5760] memfd_create("syzkaller", 0 [pid 5756] <... ioctl resumed>) = 0 [pid 5760] <... memfd_create resumed>) = 3 [pid 5760] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5758] <... write resumed>) = 4194304 [pid 5071] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./54/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5756] close(3 [pid 5068] <... umount2 resumed>) = 0 [pid 5756] <... close resumed>) = 0 [pid 5068] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5756] mkdir("./file0", 0777 [pid 5071] umount2("./54/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./54/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 5756] <... mkdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5756] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] lstat("./55/file0", [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5758] munmap(0x7f7f7af80000, 4194304 [pid 5071] rmdir("./54/file0") = 0 [pid 5758] <... munmap resumed>) = 0 [pid 5071] getdents64(3, [pid 5068] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5758] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5758] <... openat resumed>) = 4 [pid 5071] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5758] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... close resumed>) = 0 [ 119.316624][ T5756] loop1: detected capacity change from 0 to 8192 [ 119.339028][ T5757] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5760] 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"..., 4194304 [pid 5071] rmdir("./54" [pid 5068] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./55", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [ 119.367397][ T5758] loop4: detected capacity change from 0 to 8192 [ 119.373183][ T5757] REISERFS (device loop5): using ordered data mode [ 119.381652][ T5756] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.393462][ T5757] reiserfs: using flush barriers [pid 5068] <... openat resumed>) = 4 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] fstat(4, [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5762 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5762 attached [pid 5758] <... ioctl resumed>) = 0 [pid 5758] close(3) = 0 [pid 5068] close(4 [pid 5762] chdir("./55" [pid 5758] mkdir("./file0", 0777 [pid 5068] <... close resumed>) = 0 [pid 5762] <... chdir resumed>) = 0 [pid 5758] <... mkdir resumed>) = 0 [pid 5068] rmdir("./55/file0" [pid 5762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5758] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... rmdir resumed>) = 0 [pid 5762] <... prctl resumed>) = 0 [pid 5762] setpgid(0, 0 [pid 5068] getdents64(3, [pid 5762] <... setpgid resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3 [pid 5762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... close resumed>) = 0 [pid 5762] <... openat resumed>) = 3 [pid 5068] rmdir("./55" [pid 5762] write(3, "1000", 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5762] <... write resumed>) = 4 [pid 5068] mkdir("./56", 0777 [pid 5762] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 5762] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5762] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... openat resumed>) = 3 [pid 5762] <... symlink resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5762] memfd_create("syzkaller", 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5762] <... memfd_create resumed>) = 3 [pid 5068] close(3 [pid 5762] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... close resumed>) = 0 [pid 5762] <... mmap resumed>) = 0x7f7f7af80000 [ 119.404603][ T5757] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.435780][ T5756] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 119.445974][ T5758] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5764 [pid 5760] <... write resumed>) = 4194304 [pid 5760] munmap(0x7f7f7af80000, 4194304./strace-static-x86_64: Process 5764 attached ) = 0 [pid 5760] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5760] ioctl(4, LOOP_SET_FD, 3 [pid 5764] chdir("./56" [pid 5760] <... ioctl resumed>) = 0 [pid 5764] <... chdir resumed>) = 0 [pid 5764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5764] setpgid(0, 0) = 0 [pid 5764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5764] write(3, "1000", 4) = 4 [pid 5764] close(3) = 0 [pid 5764] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5764] memfd_create("syzkaller", 0) = 3 [pid 5760] close(3 [pid 5764] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5760] <... close resumed>) = 0 [ 119.472873][ T5756] REISERFS (device loop1): using ordered data mode [ 119.481066][ T5758] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 119.485280][ T5760] loop2: detected capacity change from 0 to 8192 [ 119.491185][ T5756] reiserfs: using flush barriers [ 119.496859][ T5758] REISERFS (device loop4): using ordered data mode [ 119.509075][ T5758] reiserfs: using flush barriers [pid 5760] mkdir("./file0", 0777) = 0 [ 119.516807][ T5757] REISERFS (device loop5): checking transaction log (loop5) [ 119.516886][ T5758] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.534031][ T5756] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.541649][ T5758] REISERFS (device loop4): checking transaction log (loop4) [ 119.566583][ T5758] REISERFS (device loop4): Using r5 hash to sort names [pid 5760] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 119.583385][ T5757] REISERFS (device loop5): Using r5 hash to sort names [ 119.591186][ T5760] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.604373][ T5757] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 119.617269][ T5758] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5762] 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"..., 4194304 [ 119.632338][ T5756] REISERFS (device loop1): checking transaction log (loop1) [ 119.632542][ T5760] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 119.649881][ T5756] REISERFS (device loop1): Using r5 hash to sort names [ 119.657154][ T5756] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 119.664451][ T5757] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5764] 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"..., 4194304 [pid 5756] <... mount resumed>) = 0 [pid 5756] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5756] chdir("./file0") = 0 [pid 5756] ioctl(4, LOOP_CLR_FD) = 0 [pid 5756] close(4) = 0 [pid 5756] mkdir("./file1", 000) = 0 [pid 5762] <... write resumed>) = 4194304 [pid 5756] mkdir("./bus", 000) = 0 [ 119.669896][ T5756] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 119.680078][ T5758] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 119.688260][ T5760] REISERFS (device loop2): using ordered data mode [ 119.703839][ T5760] reiserfs: using flush barriers [ 119.710147][ T5760] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.726633][ T5760] REISERFS (device loop2): checking transaction log (loop2) [pid 5756] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5757] <... mount resumed>) = 0 [pid 5757] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5757] chdir("./file0") = 0 [pid 5757] ioctl(4, LOOP_CLR_FD) = 0 [pid 5757] close(4) = 0 [pid 5757] mkdir("./file1", 000 [pid 5762] munmap(0x7f7f7af80000, 4194304 [pid 5757] <... mkdir resumed>) = 0 [pid 5762] <... munmap resumed>) = 0 [pid 5757] mkdir("./bus", 000 [pid 5762] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5757] <... mkdir resumed>) = 0 [pid 5762] <... openat resumed>) = 4 [pid 5757] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5762] ioctl(4, LOOP_SET_FD, 3 [pid 5758] <... mount resumed>) = 0 [pid 5758] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5758] chdir("./file0") = 0 [pid 5758] ioctl(4, LOOP_CLR_FD) = 0 [ 119.748213][ T5756] overlayfs: upper fs needs to support d_type. [ 119.768358][ T5756] overlayfs: upper fs does not support tmpfile. [ 119.768644][ T5757] overlayfs: upper fs needs to support d_type. [ 119.775776][ T5760] REISERFS (device loop2): Using r5 hash to sort names [ 119.783215][ T5762] loop3: detected capacity change from 0 to 8192 [pid 5758] close(4) = 0 [pid 5758] mkdir("./file1", 000) = 0 [pid 5758] mkdir("./bus", 000) = 0 [pid 5758] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5764] <... write resumed>) = 4194304 [pid 5764] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5764] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 119.805077][ T5756] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 119.811549][ T5757] overlayfs: upper fs does not support tmpfile. [ 119.821002][ T5758] overlayfs: upper fs needs to support d_type. [ 119.823652][ T5760] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 119.838380][ T5764] loop0: detected capacity change from 0 to 8192 [ 119.844906][ T5756] overlayfs: failed to resolve './file0': -2 [pid 5764] ioctl(4, LOOP_SET_FD, 3 [pid 5762] <... ioctl resumed>) = 0 [pid 5756] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5762] close(3 [pid 5756] creat("./file0/file0", 0202 [pid 5762] <... close resumed>) = 0 [pid 5756] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5762] mkdir("./file0", 0777 [pid 5756] exit_group(0 [pid 5762] <... mkdir resumed>) = 0 [pid 5756] <... exit_group resumed>) = ? [pid 5764] <... ioctl resumed>) = 0 [pid 5764] close(3) = 0 [pid 5762] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5756] +++ exited with 0 +++ [pid 5764] mkdir("./file0", 0777 [pid 5760] <... mount resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5756, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5764] <... mkdir resumed>) = 0 [pid 5764] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 119.847261][ T5758] overlayfs: upper fs does not support tmpfile. [ 119.866223][ T5757] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 119.869765][ T5760] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 119.886023][ T5762] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 119.896784][ T5757] overlayfs: failed to resolve './file0': -2 [pid 5760] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5760] <... openat resumed>) = 3 [pid 5069] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./55/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./55/binderfs") = 0 [pid 5760] chdir("./file0" [ 119.899205][ T5762] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 119.911629][ T5758] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 119.914981][ T5762] REISERFS (device loop3): using ordered data mode [ 119.928028][ T5762] reiserfs: using flush barriers [ 119.928147][ T5764] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5760] <... chdir resumed>) = 0 [pid 5760] ioctl(4, LOOP_CLR_FD [pid 5757] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5757] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5757] exit_group(0) = ? [pid 5760] <... ioctl resumed>) = 0 [pid 5757] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5757, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5073] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 119.934101][ T5762] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 119.954742][ T5758] overlayfs: failed to resolve './file0': -2 [ 119.962490][ T5762] REISERFS (device loop3): checking transaction log (loop3) [ 119.971569][ T5764] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 119.976412][ T5762] REISERFS (device loop3): Using r5 hash to sort names [ 119.992191][ T5762] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] lstat("./56/binderfs", [pid 5760] close(4 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5762] <... mount resumed>) = 0 [pid 5760] <... close resumed>) = 0 [pid 5073] unlink("./56/binderfs" [pid 5760] mkdir("./file1", 000 [pid 5073] <... unlink resumed>) = 0 [pid 5762] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5760] <... mkdir resumed>) = 0 [pid 5073] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5760] mkdir("./bus", 000) = 0 [ 120.005136][ T5762] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 120.014951][ T5764] REISERFS (device loop0): using ordered data mode [ 120.021925][ T5764] reiserfs: using flush barriers [ 120.028240][ T5764] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.039997][ T5760] overlayfs: upper fs needs to support d_type. [pid 5760] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5762] <... openat resumed>) = 3 [pid 5758] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5762] chdir("./file0" [pid 5758] creat("./file0/file0", 0202 [pid 5762] <... chdir resumed>) = 0 [pid 5758] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5762] ioctl(4, LOOP_CLR_FD [pid 5758] exit_group(0 [pid 5762] <... ioctl resumed>) = 0 [pid 5758] <... exit_group resumed>) = ? [pid 5762] close(4 [pid 5758] +++ exited with 0 +++ [pid 5762] <... close resumed>) = 0 [pid 5762] mkdir("./file1", 000) = 0 [pid 5762] mkdir("./bus", 000) = 0 [pid 5762] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5758, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- [ 120.045058][ T5764] REISERFS (device loop0): checking transaction log (loop0) [ 120.050641][ T5760] overlayfs: upper fs does not support tmpfile. [ 120.077983][ T5764] REISERFS (device loop0): Using r5 hash to sort names [ 120.092790][ T5762] overlayfs: upper fs needs to support d_type. [pid 5072] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./57/binderfs") = 0 [ 120.099685][ T5764] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 120.114374][ T5762] overlayfs: upper fs does not support tmpfile. [ 120.121256][ T5762] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 120.129143][ T5764] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 120.134063][ T5760] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5764] <... mount resumed>) = 0 [pid 5069] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5764] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5069] lstat("./55/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] chdir("./file0") = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5764] ioctl(4, LOOP_CLR_FD [pid 5069] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5764] <... ioctl resumed>) = 0 [pid 5764] close(4 [pid 5069] fstat(4, [pid 5764] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5764] mkdir("./file1", 000) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5762] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5762] creat("./file0/file0", 0202 [pid 5069] getdents64(4, [pid 5762] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5764] mkdir("./bus", 000 [pid 5762] exit_group(0 [pid 5069] close(4 [pid 5764] <... mkdir resumed>) = 0 [pid 5762] <... exit_group resumed>) = ? [pid 5069] <... close resumed>) = 0 [pid 5764] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5762] +++ exited with 0 +++ [pid 5069] rmdir("./55/file0" [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5762, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [ 120.158620][ T5762] overlayfs: failed to resolve './file0': -2 [pid 5073] <... umount2 resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] umount2("./55", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(3, [pid 5071] openat(AT_FDCWD, "./55", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./55" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] umount2("./55/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./56", 0777 [pid 5071] lstat("./55/binderfs", [pid 5069] <... mkdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] unlink("./55/binderfs" [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5071] <... unlink resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5768 [pid 5073] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 5768 attached [pid 5073] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5768] chdir("./56" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5768] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5768] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... openat resumed>) = 4 [pid 5768] <... prctl resumed>) = 0 [pid 5073] fstat(4, [pid 5768] setpgid(0, 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5768] <... setpgid resumed>) = 0 [pid 5073] getdents64(4, [pid 5768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5768] <... openat resumed>) = 3 [pid 5073] getdents64(4, [pid 5768] write(3, "1000", 4 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5768] <... write resumed>) = 4 [pid 5073] close(4 [pid 5768] close(3 [pid 5073] <... close resumed>) = 0 [pid 5768] <... close resumed>) = 0 [pid 5073] rmdir("./56/file0" [pid 5768] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... rmdir resumed>) = 0 [pid 5768] <... symlink resumed>) = 0 [pid 5073] getdents64(3, [pid 5768] memfd_create("syzkaller", 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5768] <... memfd_create resumed>) = 3 [pid 5073] close(3 [pid 5768] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... close resumed>) = 0 [pid 5768] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] rmdir("./56") = 0 [pid 5073] mkdir("./57", 0777 [pid 5760] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5760] creat("./file0/file0", 0202 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5769 [ 120.214734][ T5764] overlayfs: upper fs needs to support d_type. [ 120.230964][ T5760] overlayfs: failed to resolve './file0': -2 [ 120.241328][ T5764] overlayfs: upper fs does not support tmpfile. [pid 5760] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 5769 attached [pid 5769] chdir("./57" [pid 5760] exit_group(0 [pid 5072] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5769] <... chdir resumed>) = 0 [pid 5769] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5769] setpgid(0, 0 [pid 5760] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5769] <... setpgid resumed>) = 0 [pid 5769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5768] 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"..., 4194304 [pid 5760] +++ exited with 0 +++ [pid 5072] lstat("./57/file0", [pid 5769] write(3, "1000", 4) = 4 [pid 5769] close(3) = 0 [pid 5769] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5769] memfd_create("syzkaller", 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5760, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5769] <... memfd_create resumed>) = 3 [pid 5769] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5072] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 4 [pid 5070] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] fstat(4, [pid 5070] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 5072] getdents64(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5072] getdents64(4, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] close(4 [pid 5070] lstat("./56/binderfs", [pid 5072] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] rmdir("./57/file0" [pid 5070] unlink("./56/binderfs" [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5072] getdents64(3, [pid 5070] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./57") = 0 [pid 5072] mkdir("./58", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5770 [ 120.303554][ T5764] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 120.311831][ T5764] overlayfs: failed to resolve './file0': -2 [pid 5764] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5764] creat("./file0/file0", 0202 [pid 5071] <... umount2 resumed>) = 0 [pid 5764] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5764] exit_group(0) = ? [pid 5071] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5764] +++ exited with 0 +++ ./strace-static-x86_64: Process 5770 attached [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5770] chdir("./58" [pid 5071] lstat("./55/file0", [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5764, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5770] <... chdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] umount2("./55/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5770] <... prctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5770] setpgid(0, 0 [pid 5071] openat(AT_FDCWD, "./55/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5770] <... setpgid resumed>) = 0 [pid 5770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... openat resumed>) = 4 [pid 5770] <... openat resumed>) = 3 [pid 5071] fstat(4, [pid 5770] write(3, "1000", 4 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5770] <... write resumed>) = 4 [pid 5071] getdents64(4, [pid 5770] close(3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5770] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5770] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5770] <... symlink resumed>) = 0 [pid 5071] close(4 [pid 5068] fstat(3, [pid 5770] memfd_create("syzkaller", 0 [pid 5071] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5770] <... memfd_create resumed>) = 3 [pid 5071] rmdir("./55/file0" [pid 5770] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 5770] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] close(3 [pid 5068] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./55" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./56", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] lstat("./56/binderfs", [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] unlink("./56/binderfs" [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5771 [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5771 attached [pid 5771] chdir("./56") = 0 [pid 5771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5771] setpgid(0, 0) = 0 [pid 5771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5769] 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"..., 4194304 [pid 5771] write(3, "1000", 4) = 4 [pid 5771] close(3) = 0 [pid 5771] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5771] memfd_create("syzkaller", 0) = 3 [pid 5771] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./56/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./56/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5770] 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"..., 4194304 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./56") = 0 [pid 5070] mkdir("./57", 0777 [pid 5771] 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"..., 4194304 [pid 5769] <... write resumed>) = 4194304 [pid 5768] <... write resumed>) = 4194304 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./56/file0", [pid 5769] munmap(0x7f7f7af80000, 4194304 [pid 5768] munmap(0x7f7f7af80000, 4194304 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5768] <... munmap resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5769] <... munmap resumed>) = 0 [pid 5769] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5768] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5769] <... openat resumed>) = 4 [pid 5070] close(3 [pid 5068] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5768] <... openat resumed>) = 4 [pid 5070] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./56/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5769] ioctl(4, LOOP_SET_FD, 3 [pid 5768] ioctl(4, LOOP_SET_FD, 3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3) = 0 [pid 5068] rmdir("./56") = 0 [pid 5068] mkdir("./57", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5769] <... ioctl resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5772 ./strace-static-x86_64: Process 5773 attached [pid 5773] chdir("./57") = 0 [pid 5773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5773] setpgid(0, 0) = 0 [pid 5773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5773] write(3, "1000", 4) = 4 [pid 5773] close(3 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5773 [pid 5773] <... close resumed>) = 0 [pid 5773] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 5772 attached ) = 0 [pid 5773] memfd_create("syzkaller", 0 [pid 5772] chdir("./57" [pid 5773] <... memfd_create resumed>) = 3 [pid 5772] <... chdir resumed>) = 0 [pid 5773] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5773] <... mmap resumed>) = 0x7f7f7af80000 [pid 5772] <... prctl resumed>) = 0 [pid 5772] setpgid(0, 0) = 0 [pid 5772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5769] close(3 [pid 5768] <... ioctl resumed>) = 0 [pid 5772] <... openat resumed>) = 3 [pid 5769] <... close resumed>) = 0 [pid 5768] close(3 [pid 5772] write(3, "1000", 4) = 4 [pid 5772] close(3) = 0 [pid 5772] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5769] mkdir("./file0", 0777 [pid 5768] <... close resumed>) = 0 [pid 5772] memfd_create("syzkaller", 0) = 3 [pid 5772] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5768] mkdir("./file0", 0777 [pid 5772] <... mmap resumed>) = 0x7f7f7af80000 [pid 5769] <... mkdir resumed>) = 0 [pid 5768] <... mkdir resumed>) = 0 [ 120.563877][ T5769] loop5: detected capacity change from 0 to 8192 [ 120.571456][ T5768] loop1: detected capacity change from 0 to 8192 [pid 5769] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5768] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5772] 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"..., 4194304 [pid 5770] <... write resumed>) = 4194304 [ 120.634507][ T5768] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.648209][ T5769] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.670175][ T5768] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5770] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5770] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5770] ioctl(4, LOOP_SET_FD, 3 [pid 5773] 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"..., 4194304 [pid 5771] <... write resumed>) = 4194304 [pid 5771] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5771] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5771] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5771] close(3) = 0 [pid 5771] mkdir("./file0", 0777) = 0 [pid 5771] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5770] <... ioctl resumed>) = 0 [pid 5770] close(3) = 0 [ 120.679977][ T5769] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 120.691670][ T5770] loop4: detected capacity change from 0 to 8192 [ 120.701241][ T5768] REISERFS (device loop1): using ordered data mode [ 120.710107][ T5769] REISERFS (device loop5): using ordered data mode [ 120.715557][ T5771] loop3: detected capacity change from 0 to 8192 [ 120.717109][ T5769] reiserfs: using flush barriers [pid 5770] mkdir("./file0", 0777) = 0 [ 120.729854][ T5769] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.748223][ T5769] REISERFS (device loop5): checking transaction log (loop5) [ 120.750832][ T5768] reiserfs: using flush barriers [ 120.761064][ T5770] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5770] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5773] <... write resumed>) = 4194304 [pid 5773] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5773] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5773] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5773] close(3 [pid 5772] <... write resumed>) = 4194304 [pid 5773] <... close resumed>) = 0 [ 120.774584][ T5771] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.793600][ T5773] loop2: detected capacity change from 0 to 8192 [ 120.800504][ T5768] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.816757][ T5770] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 120.820341][ T5771] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5772] munmap(0x7f7f7af80000, 4194304 [pid 5773] mkdir("./file0", 0777 [pid 5772] <... munmap resumed>) = 0 [pid 5772] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5772] ioctl(4, LOOP_SET_FD, 3 [pid 5773] <... mkdir resumed>) = 0 [pid 5773] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5772] <... ioctl resumed>) = 0 [pid 5772] close(3) = 0 [ 120.826697][ T5770] REISERFS (device loop4): using ordered data mode [ 120.842163][ T5769] REISERFS (device loop5): Using r5 hash to sort names [ 120.843031][ T5768] REISERFS (device loop1): checking transaction log (loop1) [ 120.849239][ T5771] REISERFS (device loop3): using ordered data mode [ 120.861624][ T5772] loop0: detected capacity change from 0 to 8192 [ 120.864064][ T5771] reiserfs: using flush barriers [ 120.871345][ T5770] reiserfs: using flush barriers [pid 5772] mkdir("./file0", 0777) = 0 [ 120.875766][ T5769] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 120.892014][ T5771] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.900879][ T5770] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 120.910078][ T5771] REISERFS (device loop3): checking transaction log (loop3) [ 120.925814][ T5772] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.932710][ T5769] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 120.954029][ T5768] REISERFS (device loop1): Using r5 hash to sort names [ 120.954568][ T5773] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 120.961093][ T5768] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 120.986468][ T5772] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 120.986572][ T5772] REISERFS (device loop0): using ordered data mode [ 120.996690][ T5771] REISERFS (device loop3): Using r5 hash to sort names [ 121.002991][ T5773] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 121.009394][ T5771] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5772] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5769] <... mount resumed>) = 0 [pid 5769] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5768] <... mount resumed>) = 0 [pid 5771] <... mount resumed>) = 0 [pid 5771] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5771] chdir("./file0") = 0 [ 121.018797][ T5770] REISERFS (device loop4): checking transaction log (loop4) [ 121.031485][ T5771] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 121.047319][ T5772] reiserfs: using flush barriers [ 121.048550][ T5773] REISERFS (device loop2): using ordered data mode [ 121.052744][ T5768] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 121.060115][ T5772] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5771] ioctl(4, LOOP_CLR_FD) = 0 [pid 5771] close(4) = 0 [pid 5771] mkdir("./file1", 000) = 0 [pid 5769] chdir("./file0" [pid 5768] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5771] mkdir("./bus", 000) = 0 [pid 5771] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5769] <... chdir resumed>) = 0 [pid 5768] <... openat resumed>) = 3 [pid 5769] ioctl(4, LOOP_CLR_FD [pid 5768] chdir("./file0" [pid 5769] <... ioctl resumed>) = 0 [pid 5768] <... chdir resumed>) = 0 [pid 5769] close(4 [pid 5768] ioctl(4, LOOP_CLR_FD [pid 5769] <... close resumed>) = 0 [pid 5768] <... ioctl resumed>) = 0 [pid 5769] mkdir("./file1", 000 [pid 5768] close(4 [pid 5769] <... mkdir resumed>) = 0 [pid 5768] <... close resumed>) = 0 [pid 5769] mkdir("./bus", 000 [pid 5768] mkdir("./file1", 000 [pid 5769] <... mkdir resumed>) = 0 [pid 5768] <... mkdir resumed>) = 0 [pid 5769] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5768] mkdir("./bus", 000) = 0 [ 121.069132][ T5773] reiserfs: using flush barriers [ 121.094233][ T5772] REISERFS (device loop0): checking transaction log (loop0) [ 121.101286][ T5769] overlayfs: upper fs needs to support d_type. [ 121.102584][ T5771] overlayfs: upper fs needs to support d_type. [ 121.110418][ T5768] overlayfs: upper fs needs to support d_type. [ 121.114320][ T5770] REISERFS (device loop4): Using r5 hash to sort names [ 121.127617][ T5771] overlayfs: upper fs does not support tmpfile. [ 121.134356][ T5772] REISERFS (device loop0): Using r5 hash to sort names [ 121.141439][ T5769] overlayfs: upper fs does not support tmpfile. [ 121.141543][ T5772] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 121.152365][ T5770] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 121.173850][ T5771] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5768] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5771] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5771] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5771] exit_group(0 [pid 5772] <... mount resumed>) = 0 [pid 5771] <... exit_group resumed>) = ? [ 121.183258][ T5771] overlayfs: failed to resolve './file0': -2 [ 121.184603][ T5768] overlayfs: upper fs does not support tmpfile. [ 121.196263][ T5769] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 121.201656][ T5773] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.204663][ T5769] overlayfs: failed to resolve './file0': -2 [ 121.226803][ T5772] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5772] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5771] +++ exited with 0 +++ [pid 5769] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5772] chdir("./file0" [pid 5769] creat("./file0/file0", 0202 [pid 5772] <... chdir resumed>) = 0 [pid 5769] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5771, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5772] ioctl(4, LOOP_CLR_FD [pid 5769] exit_group(0 [pid 5772] <... ioctl resumed>) = 0 [pid 5769] <... exit_group resumed>) = ? [pid 5071] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5772] close(4 [pid 5769] +++ exited with 0 +++ [pid 5772] <... close resumed>) = 0 [pid 5770] <... mount resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5769, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5772] mkdir("./file1", 000 [pid 5770] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5768] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5772] <... mkdir resumed>) = 0 [pid 5770] <... openat resumed>) = 3 [pid 5768] creat("./file0/file0", 0202 [pid 5071] <... openat resumed>) = 3 [pid 5772] mkdir("./bus", 000 [pid 5770] chdir("./file0" [pid 5768] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(3, [pid 5772] <... mkdir resumed>) = 0 [pid 5770] <... chdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 121.239264][ T5768] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 121.240327][ T5770] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 121.253580][ T5773] REISERFS (device loop2): checking transaction log (loop2) [ 121.276346][ T5768] overlayfs: failed to resolve './file0': -2 [pid 5768] exit_group(0 [pid 5772] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5770] ioctl(4, LOOP_CLR_FD [pid 5073] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, [pid 5770] <... ioctl resumed>) = 0 [pid 5770] close(4 [pid 5073] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5770] <... close resumed>) = 0 [pid 5073] fstat(3, [pid 5071] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5770] mkdir("./file1", 000 [pid 5768] <... exit_group resumed>) = ? [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5770] <... mkdir resumed>) = 0 [pid 5768] +++ exited with 0 +++ [pid 5073] getdents64(3, [pid 5071] lstat("./56/binderfs", [pid 5770] mkdir("./bus", 000 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5768, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5770] <... mkdir resumed>) = 0 [pid 5073] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] unlink("./56/binderfs" [pid 5773] <... mount resumed>) = 0 [pid 5770] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... unlink resumed>) = 0 [pid 5073] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] unlink("./57/binderfs" [ 121.287198][ T5773] REISERFS (device loop2): Using r5 hash to sort names [ 121.303143][ T5773] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 121.304068][ T5772] overlayfs: upper fs needs to support d_type. [ 121.315931][ T5773] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] umount2("./56", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... unlink resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5773] <... openat resumed>) = 3 [pid 5773] chdir("./file0" [pid 5073] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./56", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5773] <... chdir resumed>) = 0 [pid 5773] ioctl(4, LOOP_CLR_FD [pid 5069] <... openat resumed>) = 3 [pid 5773] <... ioctl resumed>) = 0 [pid 5069] fstat(3, [pid 5773] close(4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5773] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 5773] mkdir("./file1", 000) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5773] mkdir("./bus", 000 [pid 5069] umount2("./56/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5773] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5773] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] lstat("./56/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./56/binderfs") = 0 [ 121.336629][ T5770] overlayfs: upper fs needs to support d_type. [ 121.344240][ T5770] overlayfs: upper fs does not support tmpfile. [ 121.351092][ T5770] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 121.362667][ T5770] overlayfs: failed to resolve './file0': -2 [ 121.378068][ T5773] overlayfs: upper fs needs to support d_type. [pid 5069] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5770] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5770] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5770] exit_group(0) = ? [pid 5770] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5770, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [ 121.392745][ T5772] overlayfs: upper fs does not support tmpfile. [ 121.416289][ T5772] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 121.419114][ T5773] overlayfs: upper fs does not support tmpfile. [ 121.426398][ T5772] overlayfs: failed to resolve './file0': -2 [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./58/binderfs") = 0 [pid 5072] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5772] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5772] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5772] exit_group(0) = ? [pid 5772] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5772, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5068] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] getdents64(3, [pid 5073] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./57/file0", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./57/binderfs", [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] unlink("./57/binderfs" [pid 5073] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... unlink resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] <... umount2 resumed>) = 0 [pid 5073] fstat(4, [pid 5068] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./56/file0", [pid 5073] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] lstat("./56/file0", [pid 5073] rmdir("./57/file0" [pid 5069] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] umount2("./56/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "./56/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5069] fstat(4, [pid 5073] rmdir("./57" [pid 5071] fstat(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5073] mkdir("./58", 0777 [pid 5071] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5071] close(4 [pid 5069] close(4 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] rmdir("./56/file0" [pid 5069] rmdir("./56/file0" [pid 5073] close(3) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] getdents64(3, [pid 5071] close(3) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./56" [pid 5069] close(3) = 0 [pid 5069] rmdir("./56" [pid 5773] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... rmdir resumed>) = 0 [pid 5773] creat("./file0/file0", 0202 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] mkdir("./57", 0777 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5780 [pid 5071] mkdir("./57", 0777 [pid 5773] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5773] exit_group(0 [pid 5069] <... mkdir resumed>) = 0 [pid 5773] <... exit_group resumed>) = ? [pid 5773] +++ exited with 0 +++ [pid 5071] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5773, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5069] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3 [pid 5071] close(3 [pid 5070] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... openat resumed>) = 3 [ 121.516978][ T5773] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 121.546644][ T5773] overlayfs: failed to resolve './file0': -2 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5781 attached ./strace-static-x86_64: Process 5780 attached [pid 5070] fstat(3, [pid 5780] chdir("./58" [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5782 [pid 5781] chdir("./57" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5781 [pid 5781] <... chdir resumed>) = 0 [pid 5780] <... chdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5781] <... prctl resumed>) = 0 [pid 5780] <... prctl resumed>) = 0 [pid 5070] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5781] setpgid(0, 0 [pid 5780] setpgid(0, 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5781] <... setpgid resumed>) = 0 [pid 5780] <... setpgid resumed>) = 0 [pid 5070] lstat("./57/binderfs", [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5781] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5782 attached [pid 5781] write(3, "1000", 4 [pid 5780] <... openat resumed>) = 3 [pid 5070] unlink("./57/binderfs" [pid 5781] <... write resumed>) = 4 [pid 5780] write(3, "1000", 4 [pid 5782] chdir("./57" [pid 5781] close(3 [pid 5780] <... write resumed>) = 4 [pid 5070] <... unlink resumed>) = 0 [pid 5781] <... close resumed>) = 0 [pid 5780] close(3 [pid 5781] symlink("/dev/binderfs", "./binderfs" [pid 5070] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5780] <... close resumed>) = 0 [pid 5782] <... chdir resumed>) = 0 [pid 5781] <... symlink resumed>) = 0 [pid 5782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] symlink("/dev/binderfs", "./binderfs" [pid 5781] memfd_create("syzkaller", 0 [pid 5782] <... prctl resumed>) = 0 [pid 5780] <... symlink resumed>) = 0 [pid 5782] setpgid(0, 0 [pid 5781] <... memfd_create resumed>) = 3 [pid 5782] <... setpgid resumed>) = 0 [pid 5782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5780] memfd_create("syzkaller", 0 [pid 5782] <... openat resumed>) = 3 [pid 5782] write(3, "1000", 4 [pid 5780] <... memfd_create resumed>) = 3 [pid 5782] <... write resumed>) = 4 [pid 5781] <... mmap resumed>) = 0x7f7f7af80000 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5782] close(3) = 0 [pid 5782] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5782] memfd_create("syzkaller", 0) = 3 [pid 5782] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5780] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./58/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./58") = 0 [pid 5072] mkdir("./59", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5783 ./strace-static-x86_64: Process 5783 attached [pid 5783] chdir("./59" [pid 5068] <... umount2 resumed>) = 0 [pid 5783] <... chdir resumed>) = 0 [pid 5782] 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"..., 4194304 [pid 5781] 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"..., 4194304 [pid 5780] 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"..., 4194304 [pid 5783] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5783] setpgid(0, 0) = 0 [pid 5783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5783] write(3, "1000", 4 [pid 5068] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] <... write resumed>) = 4 [pid 5783] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5783] <... close resumed>) = 0 [pid 5783] symlink("/dev/binderfs", "./binderfs" [pid 5068] lstat("./57/file0", [pid 5783] <... symlink resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5783] memfd_create("syzkaller", 0) = 3 [pid 5068] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5783] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5070] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] fstat(4, [pid 5070] lstat("./57/file0", [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5070] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] getdents64(4, [pid 5070] fstat(4, [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(4 [pid 5070] getdents64(4, [pid 5068] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] rmdir("./57/file0" [pid 5070] getdents64(4, [pid 5068] <... rmdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 5070] close(4 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] close(3 [pid 5070] rmdir("./57/file0" [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./57" [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5068] mkdir("./58", 0777 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5070] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5070] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5070] rmdir("./57" [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] <... rmdir resumed>) = 0 [pid 5068] close(3 [pid 5070] mkdir("./58", 0777 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5784 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5784 attached [pid 5783] 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"..., 4194304 [pid 5781] <... write resumed>) = 4194304 [pid 5780] <... write resumed>) = 4194304 [pid 5784] chdir("./58" [pid 5781] munmap(0x7f7f7af80000, 4194304 [pid 5780] munmap(0x7f7f7af80000, 4194304 [pid 5784] <... chdir resumed>) = 0 [pid 5784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5780] <... munmap resumed>) = 0 [pid 5784] setpgid(0, 0./strace-static-x86_64: Process 5785 attached ) = 0 [pid 5781] <... munmap resumed>) = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5785 [pid 5785] chdir("./58" [pid 5784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5781] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5780] <... openat resumed>) = 4 [pid 5785] <... chdir resumed>) = 0 [pid 5784] <... openat resumed>) = 3 [pid 5781] <... openat resumed>) = 4 [pid 5780] ioctl(4, LOOP_SET_FD, 3 [pid 5785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5784] write(3, "1000", 4 [pid 5781] ioctl(4, LOOP_SET_FD, 3 [pid 5785] <... prctl resumed>) = 0 [pid 5784] <... write resumed>) = 4 [pid 5785] setpgid(0, 0 [pid 5784] close(3 [pid 5785] <... setpgid resumed>) = 0 [pid 5784] <... close resumed>) = 0 [pid 5785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5784] symlink("/dev/binderfs", "./binderfs" [pid 5785] <... openat resumed>) = 3 [pid 5784] <... symlink resumed>) = 0 [pid 5785] write(3, "1000", 4 [pid 5784] memfd_create("syzkaller", 0 [pid 5785] <... write resumed>) = 4 [pid 5784] <... memfd_create resumed>) = 3 [pid 5785] close(3 [pid 5784] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5785] <... close resumed>) = 0 [pid 5784] <... mmap resumed>) = 0x7f7f7af80000 [pid 5785] symlink("/dev/binderfs", "./binderfs" [pid 5780] <... ioctl resumed>) = 0 [pid 5785] <... symlink resumed>) = 0 [pid 5785] memfd_create("syzkaller", 0) = 3 [pid 5785] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5780] close(3 [pid 5781] <... ioctl resumed>) = 0 [pid 5780] <... close resumed>) = 0 [pid 5781] close(3 [pid 5780] mkdir("./file0", 0777 [pid 5781] <... close resumed>) = 0 [pid 5780] <... mkdir resumed>) = 0 [pid 5781] mkdir("./file0", 0777 [pid 5780] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5781] <... mkdir resumed>) = 0 [ 121.834033][ T5780] loop5: detected capacity change from 0 to 8192 [ 121.841673][ T5781] loop1: detected capacity change from 0 to 8192 [pid 5781] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5784] 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"..., 4194304 [ 121.872998][ T5780] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.887190][ T5781] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 121.919629][ T5780] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5785] 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"..., 4194304 [pid 5782] <... write resumed>) = 4194304 [pid 5782] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5782] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5782] ioctl(4, LOOP_SET_FD, 3 [pid 5783] <... write resumed>) = 4194304 [ 121.929948][ T5781] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 121.939433][ T5781] REISERFS (device loop1): using ordered data mode [ 121.946189][ T5781] reiserfs: using flush barriers [ 121.952313][ T5781] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 121.967231][ T5782] loop3: detected capacity change from 0 to 8192 [ 121.969337][ T5781] REISERFS (device loop1): checking transaction log (loop1) [pid 5783] munmap(0x7f7f7af80000, 4194304 [pid 5782] <... ioctl resumed>) = 0 [pid 5781] <... mount resumed>) = 0 [pid 5785] <... write resumed>) = 4194304 [pid 5783] <... munmap resumed>) = 0 [pid 5782] close(3 [pid 5781] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5785] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5782] <... close resumed>) = 0 [pid 5781] <... openat resumed>) = 3 [pid 5785] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5783] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5782] mkdir("./file0", 0777 [pid 5781] chdir("./file0" [pid 5785] <... openat resumed>) = 4 [pid 5783] <... openat resumed>) = 4 [pid 5782] <... mkdir resumed>) = 0 [pid 5781] <... chdir resumed>) = 0 [pid 5785] ioctl(4, LOOP_SET_FD, 3 [pid 5783] ioctl(4, LOOP_SET_FD, 3 [pid 5782] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 121.983216][ T5781] REISERFS (device loop1): Using r5 hash to sort names [ 121.990366][ T5781] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 121.992862][ T5780] REISERFS (device loop5): using ordered data mode [ 122.003075][ T5781] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 122.029977][ T5780] reiserfs: using flush barriers [pid 5781] ioctl(4, LOOP_CLR_FD [pid 5785] <... ioctl resumed>) = 0 [pid 5784] <... write resumed>) = 4194304 [pid 5781] <... ioctl resumed>) = 0 [pid 5783] <... ioctl resumed>) = 0 [pid 5783] close(3) = 0 [pid 5783] mkdir("./file0", 0777) = 0 [pid 5783] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5785] close(3) = 0 [pid 5785] mkdir("./file0", 0777) = 0 [pid 5785] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5784] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5784] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5784] ioctl(4, LOOP_SET_FD, 3 [pid 5781] close(4) = 0 [pid 5781] mkdir("./file1", 000) = 0 [ 122.040326][ T5785] loop2: detected capacity change from 0 to 8192 [ 122.044340][ T5783] loop4: detected capacity change from 0 to 8192 [ 122.049073][ T5780] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 122.064671][ T5784] loop0: detected capacity change from 0 to 8192 [ 122.075998][ T5782] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5781] mkdir("./bus", 000 [pid 5784] <... ioctl resumed>) = 0 [pid 5781] <... mkdir resumed>) = 0 [pid 5781] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5784] close(3) = 0 [pid 5784] mkdir("./file0", 0777) = 0 [ 122.089767][ T5782] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 122.093457][ T5783] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.099089][ T5782] REISERFS (device loop3): using ordered data mode [ 122.114663][ T5781] overlayfs: upper fs needs to support d_type. [ 122.118942][ T5782] reiserfs: using flush barriers [ 122.132783][ T5782] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 122.149063][ T5780] REISERFS (device loop5): checking transaction log (loop5) [ 122.152996][ T5781] overlayfs: upper fs does not support tmpfile. [ 122.158230][ T5782] REISERFS (device loop3): checking transaction log (loop3) [ 122.170450][ T5785] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.183805][ T5785] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 122.188594][ T5781] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 122.192969][ T5780] REISERFS (device loop5): Using r5 hash to sort names [ 122.193141][ T5780] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 122.202570][ T5783] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 122.207544][ T5785] REISERFS (device loop2): using ordered data mode [ 122.221785][ T5783] REISERFS (device loop4): using ordered data mode [ 122.237073][ T5781] overlayfs: failed to resolve './file0': -2 [ 122.243909][ T5783] reiserfs: using flush barriers [ 122.247968][ T5784] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 122.254759][ T5783] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 122.265816][ T5782] REISERFS (device loop3): Using r5 hash to sort names [pid 5784] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5781] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5781] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5781] exit_group(0) = ? [pid 5781] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 122.266036][ T5782] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 122.282450][ T5780] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 122.310580][ T5784] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 122.310669][ T5784] REISERFS (device loop0): using ordered data mode [ 122.319805][ T5785] reiserfs: using flush barriers [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./57/binderfs") = 0 [ 122.333083][ T5785] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 122.351281][ T5785] REISERFS (device loop2): checking transaction log (loop2) [ 122.359670][ T5785] REISERFS (device loop2): Using r5 hash to sort names [ 122.359932][ T5783] REISERFS (device loop4): checking transaction log (loop4) [ 122.366788][ T5785] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5782] <... mount resumed>) = 0 [pid 5782] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5782] chdir("./file0" [pid 5785] <... mount resumed>) = 0 [pid 5785] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5785] chdir("./file0" [pid 5782] <... chdir resumed>) = 0 [pid 5782] ioctl(4, LOOP_CLR_FD) = 0 [pid 5782] close(4) = 0 [pid 5782] mkdir("./file1", 000) = 0 [pid 5782] mkdir("./bus", 000) = 0 [ 122.379629][ T5782] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 122.386810][ T5784] reiserfs: using flush barriers [ 122.401316][ T5785] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 122.412578][ T5784] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5782] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5785] <... chdir resumed>) = 0 [pid 5780] <... mount resumed>) = 0 [ 122.441904][ T5783] REISERFS (device loop4): Using r5 hash to sort names [ 122.452235][ T5784] REISERFS (device loop0): checking transaction log (loop0) [ 122.461793][ T5784] REISERFS (device loop0): Using r5 hash to sort names [ 122.461935][ T5782] overlayfs: upper fs needs to support d_type. [ 122.470666][ T5784] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5785] ioctl(4, LOOP_CLR_FD [pid 5780] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5785] <... ioctl resumed>) = 0 [pid 5780] <... openat resumed>) = 3 [pid 5785] close(4 [pid 5780] chdir("./file0" [pid 5785] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5785] mkdir("./file1", 000 [pid 5780] <... chdir resumed>) = 0 [pid 5785] <... mkdir resumed>) = 0 [pid 5780] ioctl(4, LOOP_CLR_FD [pid 5785] mkdir("./bus", 000 [pid 5780] <... ioctl resumed>) = 0 [pid 5785] <... mkdir resumed>) = 0 [pid 5780] close(4 [pid 5785] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5780] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5780] mkdir("./file1", 000 [pid 5069] lstat("./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, [pid 5784] <... mount resumed>) = 0 [pid 5780] <... mkdir resumed>) = 0 [pid 5784] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5780] mkdir("./bus", 000 [pid 5784] <... openat resumed>) = 3 [pid 5780] <... mkdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5784] chdir("./file0" [pid 5780] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./57/file0") = 0 [ 122.476802][ T5783] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 122.489053][ T5784] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 122.520741][ T5785] overlayfs: upper fs needs to support d_type. [ 122.532292][ T5782] overlayfs: upper fs does not support tmpfile. [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./57") = 0 [pid 5784] <... chdir resumed>) = 0 [pid 5069] mkdir("./58", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5792 [pid 5784] ioctl(4, LOOP_CLR_FD) = 0 [pid 5784] close(4./strace-static-x86_64: Process 5792 attached [pid 5792] chdir("./58" [pid 5784] <... close resumed>) = 0 [pid 5792] <... chdir resumed>) = 0 [pid 5784] mkdir("./file1", 000 [pid 5792] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5792] setpgid(0, 0) = 0 [pid 5792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5792] write(3, "1000", 4) = 4 [pid 5792] close(3) = 0 [pid 5792] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5792] memfd_create("syzkaller", 0) = 3 [pid 5792] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5784] <... mkdir resumed>) = 0 [pid 5792] <... mmap resumed>) = 0x7f7f7af80000 [pid 5784] mkdir("./bus", 000) = 0 [ 122.532507][ T5780] overlayfs: upper fs needs to support d_type. [ 122.556640][ T5782] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 122.563569][ T5785] overlayfs: upper fs does not support tmpfile. [ 122.575820][ T5785] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 122.577886][ T5783] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 122.585244][ T5784] overlayfs: upper fs needs to support d_type. [ 122.605453][ T5780] overlayfs: upper fs does not support tmpfile. [ 122.606209][ T5782] overlayfs: failed to resolve './file0': -2 [ 122.614521][ T5785] overlayfs: failed to resolve './file0': -2 [ 122.628341][ T5784] overlayfs: upper fs does not support tmpfile. [pid 5784] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5783] <... mount resumed>) = 0 [pid 5783] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5783] chdir("./file0") = 0 [pid 5785] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5782] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5783] ioctl(4, LOOP_CLR_FD [pid 5782] creat("./file0/file0", 0202 [pid 5783] <... ioctl resumed>) = 0 [pid 5782] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5785] creat("./file0/file0", 0202 [pid 5783] close(4 [pid 5782] exit_group(0 [pid 5783] <... close resumed>) = 0 [pid 5782] <... exit_group resumed>) = ? [pid 5785] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5783] mkdir("./file1", 000 [pid 5782] +++ exited with 0 +++ [pid 5783] <... mkdir resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5782, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5783] mkdir("./bus", 000) = 0 [pid 5783] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] umount2("./57", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./57", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./57/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./57/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./57/binderfs" [pid 5785] exit_group(0 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5792] 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"..., 4194304 [ 122.636945][ T5780] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 122.660039][ T5784] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 122.668875][ T5783] overlayfs: upper fs needs to support d_type. [ 122.670751][ T5780] overlayfs: failed to resolve './file0': -2 [pid 5785] <... exit_group resumed>) = ? [pid 5785] +++ exited with 0 +++ [pid 5780] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5784] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5780] creat("./file0/file0", 0202 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5785, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [pid 5780] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5780] exit_group(0) = ? [pid 5784] creat("./file0/file0", 0202 [pid 5070] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5784] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5780] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5784] exit_group(0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5780, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5070] unlink("./58/binderfs" [pid 5784] <... exit_group resumed>) = ? [pid 5073] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 122.689634][ T5784] overlayfs: failed to resolve './file0': -2 [ 122.710823][ T5783] overlayfs: upper fs does not support tmpfile. [pid 5073] getdents64(3, [pid 5784] +++ exited with 0 +++ [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5784, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] unlink("./58/binderfs" [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... unlink resumed>) = 0 [pid 5068] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./58/binderfs") = 0 [ 122.743026][ T5783] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5783] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5783] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5783] exit_group(0) = ? [pid 5068] <... umount2 resumed>) = 0 [pid 5783] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5783, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./59/binderfs") = 0 [pid 5068] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 122.786460][ T5783] overlayfs: failed to resolve './file0': -2 [pid 5068] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./58/file0") = 0 [pid 5068] getdents64(3, [pid 5792] <... write resumed>) = 4194304 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3 [pid 5792] munmap(0x7f7f7af80000, 4194304 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./58") = 0 [pid 5792] <... munmap resumed>) = 0 [pid 5068] mkdir("./59", 0777) = 0 [pid 5792] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5792] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5793 [pid 5071] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./58/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./58/file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./57/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] umount2("./57/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(3, [pid 5792] <... ioctl resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5792] close(3 [pid 5070] close(3 [pid 5792] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5792] mkdir("./file0", 0777 [pid 5070] rmdir("./58" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5792] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./57/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... rmdir resumed>) = 0 [pid 5792] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] mkdir("./59", 0777 [pid 5071] <... openat resumed>) = 4 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] getdents64(4, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5795 [pid 5071] close(4) = 0 [ 122.880506][ T5792] loop1: detected capacity change from 0 to 8192 [pid 5071] rmdir("./57/file0"./strace-static-x86_64: Process 5793 attached [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5795 attached [pid 5795] chdir("./59" [pid 5793] chdir("./59" [pid 5071] getdents64(3, [pid 5073] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5793] <... chdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] rmdir("./57" [pid 5793] <... prctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5795] <... chdir resumed>) = 0 [pid 5793] setpgid(0, 0 [pid 5073] lstat("./58/file0", [pid 5071] <... rmdir resumed>) = 0 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5793] <... setpgid resumed>) = 0 [ 122.931764][ T5792] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] mkdir("./58", 0777 [pid 5795] <... prctl resumed>) = 0 [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... mkdir resumed>) = 0 [pid 5795] setpgid(0, 0 [pid 5793] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./59/file0", [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5795] <... setpgid resumed>) = 0 [pid 5793] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5793] <... write resumed>) = 4 [pid 5073] <... openat resumed>) = 4 [pid 5072] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5795] <... openat resumed>) = 3 [pid 5793] close(3 [pid 5073] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5795] write(3, "1000", 4 [pid 5793] <... close resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] close(3 [pid 5795] <... write resumed>) = 4 [pid 5793] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(4, [pid 5072] <... openat resumed>) = 4 [pid 5071] <... close resumed>) = 0 [pid 5795] close(3 [pid 5793] <... symlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] fstat(4, [ 122.972066][ T5792] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 122.981726][ T5792] REISERFS (device loop1): using ordered data mode [ 122.988406][ T5792] reiserfs: using flush barriers [ 122.997230][ T5792] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5795] <... close resumed>) = 0 [pid 5793] memfd_create("syzkaller", 0 [pid 5073] getdents64(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5795] symlink("/dev/binderfs", "./binderfs" [pid 5793] <... memfd_create resumed>) = 3 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(4, [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5796 [pid 5795] <... symlink resumed>) = 0 [pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] close(4 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5795] memfd_create("syzkaller", 0 [pid 5793] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... close resumed>) = 0 [pid 5072] getdents64(4, ./strace-static-x86_64: Process 5796 attached [pid 5795] <... memfd_create resumed>) = 3 [pid 5073] rmdir("./58/file0" [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5795] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] close(4 [pid 5795] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] getdents64(3, [pid 5072] <... close resumed>) = 0 [pid 5796] chdir("./58" [pid 5792] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] rmdir("./59/file0" [pid 5796] <... chdir resumed>) = 0 [pid 5792] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5796] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5792] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5072] getdents64(3, [pid 5796] <... prctl resumed>) = 0 [pid 5792] chdir("./file0" [pid 5073] rmdir("./58" [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5796] setpgid(0, 0 [pid 5792] <... chdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] close(3 [pid 5796] <... setpgid resumed>) = 0 [pid 5792] ioctl(4, LOOP_CLR_FD [pid 5073] mkdir("./59", 0777 [pid 5072] <... close resumed>) = 0 [pid 5796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5793] 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"..., 4194304 [pid 5792] <... ioctl resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5796] <... openat resumed>) = 3 [pid 5795] 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"..., 4194304 [ 123.017420][ T5792] REISERFS (device loop1): checking transaction log (loop1) [ 123.031503][ T5792] REISERFS (device loop1): Using r5 hash to sort names [ 123.038712][ T5792] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 123.052054][ T5792] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5792] close(4 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] rmdir("./59" [pid 5796] write(3, "1000", 4 [pid 5792] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5796] <... write resumed>) = 4 [pid 5792] mkdir("./file1", 000 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] mkdir("./60", 0777 [pid 5796] close(3 [pid 5792] <... mkdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... mkdir resumed>) = 0 [pid 5796] <... close resumed>) = 0 [pid 5792] mkdir("./bus", 000 [pid 5073] close(3 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5796] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5796] <... symlink resumed>) = 0 [pid 5792] <... mkdir resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5796] memfd_create("syzkaller", 0 [pid 5792] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5796] <... memfd_create resumed>) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5797 [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5798 ./strace-static-x86_64: Process 5797 attached [pid 5797] chdir("./59") = 0 [pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5798 attached ) = 0 [pid 5798] chdir("./60" [pid 5797] setpgid(0, 0 [pid 5796] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5798] <... chdir resumed>) = 0 [pid 5797] <... setpgid resumed>) = 0 [pid 5796] <... mmap resumed>) = 0x7f7f7af80000 [pid 5798] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5798] <... prctl resumed>) = 0 [pid 5797] <... openat resumed>) = 3 [pid 5798] setpgid(0, 0 [pid 5797] write(3, "1000", 4 [pid 5798] <... setpgid resumed>) = 0 [pid 5797] <... write resumed>) = 4 [pid 5798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5797] close(3 [pid 5798] <... openat resumed>) = 3 [pid 5797] <... close resumed>) = 0 [pid 5798] write(3, "1000", 4 [pid 5797] symlink("/dev/binderfs", "./binderfs" [pid 5793] <... write resumed>) = 4194304 [pid 5798] <... write resumed>) = 4 [pid 5797] <... symlink resumed>) = 0 [pid 5793] munmap(0x7f7f7af80000, 4194304 [pid 5798] close(3 [pid 5797] memfd_create("syzkaller", 0 [pid 5793] <... munmap resumed>) = 0 [pid 5798] <... close resumed>) = 0 [pid 5797] <... memfd_create resumed>) = 3 [pid 5793] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5798] symlink("/dev/binderfs", "./binderfs" [ 123.136174][ T5792] overlayfs: upper fs needs to support d_type. [ 123.142411][ T5792] overlayfs: upper fs does not support tmpfile. [pid 5797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5793] <... openat resumed>) = 4 [pid 5798] <... symlink resumed>) = 0 [pid 5797] <... mmap resumed>) = 0x7f7f7af80000 [pid 5798] memfd_create("syzkaller", 0 [pid 5793] ioctl(4, LOOP_SET_FD, 3 [pid 5798] <... memfd_create resumed>) = 3 [pid 5798] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5793] <... ioctl resumed>) = 0 [pid 5793] close(3) = 0 [pid 5793] mkdir("./file0", 0777 [pid 5796] 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"..., 4194304 [pid 5793] <... mkdir resumed>) = 0 [ 123.177734][ T5792] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 123.193537][ T5793] loop0: detected capacity change from 0 to 8192 [ 123.202245][ T5792] overlayfs: failed to resolve './file0': -2 [pid 5793] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5792] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5792] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5792] exit_group(0) = ? [pid 5796] <... write resumed>) = 4194304 [pid 5792] +++ exited with 0 +++ [pid 5796] munmap(0x7f7f7af80000, 4194304 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5792, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=18 /* 0.18 s */} --- [pid 5796] <... munmap resumed>) = 0 [pid 5796] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5796] <... openat resumed>) = 4 [pid 5796] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5796] <... ioctl resumed>) = 0 [pid 5796] close(3 [pid 5069] getdents64(3, [pid 5796] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5796] mkdir("./file0", 0777 [pid 5069] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5796] <... mkdir resumed>) = 0 [ 123.224374][ T5793] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.258791][ T5796] loop3: detected capacity change from 0 to 8192 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5798] 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"..., 4194304 [pid 5797] 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"..., 4194304 [pid 5796] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5795] <... write resumed>) = 4194304 [pid 5795] munmap(0x7f7f7af80000, 4194304 [pid 5069] lstat("./58/binderfs", [pid 5795] <... munmap resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5795] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] unlink("./58/binderfs" [pid 5795] <... openat resumed>) = 4 [pid 5795] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5795] <... ioctl resumed>) = 0 [pid 5795] close(3) = 0 [ 123.276348][ T5793] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 123.294006][ T5796] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.303572][ T5793] REISERFS (device loop0): using ordered data mode [ 123.308216][ T5795] loop2: detected capacity change from 0 to 8192 [ 123.320893][ T5793] reiserfs: using flush barriers [pid 5795] mkdir("./file0", 0777 [pid 5798] <... write resumed>) = 4194304 [pid 5795] <... mkdir resumed>) = 0 [pid 5798] munmap(0x7f7f7af80000, 4194304 [pid 5795] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5798] <... munmap resumed>) = 0 [ 123.338970][ T5796] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 123.345450][ T5793] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.348682][ T5796] REISERFS (device loop3): using ordered data mode [ 123.372618][ T5796] reiserfs: using flush barriers [pid 5798] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 123.379323][ T5796] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.379505][ T5793] REISERFS (device loop0): checking transaction log (loop0) [ 123.400020][ T5795] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.403828][ T5796] REISERFS (device loop3): checking transaction log (loop3) [ 123.417149][ T5793] REISERFS (device loop0): Using r5 hash to sort names [pid 5798] ioctl(4, LOOP_SET_FD, 3 [pid 5797] <... write resumed>) = 4194304 [pid 5798] <... ioctl resumed>) = 0 [pid 5798] close(3) = 0 [pid 5798] mkdir("./file0", 0777) = 0 [ 123.434325][ T5796] REISERFS (device loop3): Using r5 hash to sort names [ 123.442344][ T5798] loop4: detected capacity change from 0 to 8192 [ 123.456574][ T5798] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.466167][ T5796] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5798] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5797] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5797] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5797] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5796] <... mount resumed>) = 0 [pid 5796] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5796] chdir("./file0") = 0 [pid 5796] ioctl(4, LOOP_CLR_FD) = 0 [pid 5796] close(4) = 0 [ 123.475842][ T5793] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 123.482798][ T5796] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 123.500512][ T5797] loop5: detected capacity change from 0 to 8192 [ 123.515789][ T5793] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 123.525328][ T5798] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5796] mkdir("./file1", 000) = 0 [pid 5797] <... ioctl resumed>) = 0 [pid 5793] <... mount resumed>) = 0 [pid 5069] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5797] close(3 [pid 5796] mkdir("./bus", 000 [pid 5793] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5797] <... close resumed>) = 0 [pid 5796] <... mkdir resumed>) = 0 [pid 5793] <... openat resumed>) = 3 [pid 5069] lstat("./58/file0", [pid 5797] mkdir("./file0", 0777 [pid 5796] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5793] chdir("./file0" [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5797] <... mkdir resumed>) = 0 [pid 5793] <... chdir resumed>) = 0 [pid 5069] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5797] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5793] ioctl(4, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5793] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5793] close(4 [pid 5069] <... openat resumed>) = 4 [pid 5793] <... close resumed>) = 0 [pid 5069] fstat(4, [pid 5793] mkdir("./file1", 000 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5793] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5793] mkdir("./bus", 000 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5793] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5793] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./58/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./58") = 0 [pid 5069] mkdir("./59", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5804 [ 123.534008][ T5795] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 123.546296][ T5796] overlayfs: upper fs needs to support d_type. [ 123.554423][ T5793] overlayfs: upper fs needs to support d_type. [ 123.560146][ T5795] REISERFS (device loop2): using ordered data mode [ 123.560782][ T5798] REISERFS (device loop4): using ordered data mode [ 123.568201][ T5795] reiserfs: using flush barriers [ 123.575497][ T5793] overlayfs: upper fs does not support tmpfile. [pid 5796] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5796] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5796] exit_group(0) = ? ./strace-static-x86_64: Process 5804 attached [pid 5804] chdir("./59") = 0 [pid 5804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5804] setpgid(0, 0) = 0 [pid 5804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5796] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5796, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5804] <... openat resumed>) = 3 [pid 5071] umount2("./58", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5804] write(3, "1000", 4 [pid 5071] openat(AT_FDCWD, "./58", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./58/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./58/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 123.581972][ T5796] overlayfs: upper fs does not support tmpfile. [ 123.585997][ T5797] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.592851][ T5796] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 123.604614][ T5795] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.616411][ T5796] overlayfs: failed to resolve './file0': -2 [pid 5071] unlink("./58/binderfs" [pid 5804] <... write resumed>) = 4 [pid 5071] <... unlink resumed>) = 0 [pid 5804] close(3 [pid 5071] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5804] <... close resumed>) = 0 [pid 5804] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5804] memfd_create("syzkaller", 0) = 3 [pid 5804] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 123.653636][ T5793] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 123.662126][ T5798] reiserfs: using flush barriers [ 123.674622][ T5797] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5793] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5793] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5793] exit_group(0) = ? [ 123.698749][ T5795] REISERFS (device loop2): checking transaction log (loop2) [ 123.704081][ T5798] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.723852][ T5793] overlayfs: failed to resolve './file0': -2 [ 123.731272][ T5797] REISERFS (device loop5): using ordered data mode [ 123.746993][ T5797] reiserfs: using flush barriers [pid 5793] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5793, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 123.747044][ T5795] REISERFS (device loop2): Using r5 hash to sort names [ 123.757095][ T5798] REISERFS (device loop4): checking transaction log (loop4) [ 123.767502][ T5797] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 123.785150][ T5795] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5804] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./59/binderfs", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./59/binderfs" [pid 5071] lstat("./58/file0", [pid 5068] <... unlink resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./58/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./58/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./58/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [ 123.790797][ T5797] REISERFS (device loop5): checking transaction log (loop5) [ 123.807804][ T5798] REISERFS (device loop4): Using r5 hash to sort names [ 123.832165][ T5798] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 123.843535][ T5795] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] rmdir("./58") = 0 [pid 5804] <... write resumed>) = 4194304 [pid 5798] <... mount resumed>) = 0 [pid 5795] <... mount resumed>) = 0 [pid 5071] mkdir("./59", 0777 [pid 5795] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... mkdir resumed>) = 0 [pid 5795] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5795] chdir("./file0" [pid 5071] <... openat resumed>) = 3 [pid 5795] <... chdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5795] ioctl(4, LOOP_CLR_FD [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5795] <... ioctl resumed>) = 0 [pid 5071] close(3 [pid 5795] close(4 [pid 5071] <... close resumed>) = 0 [pid 5795] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5795] mkdir("./file1", 000) = 0 [pid 5804] munmap(0x7f7f7af80000, 4194304 [pid 5795] mkdir("./bus", 000 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5805 [pid 5804] <... munmap resumed>) = 0 [pid 5795] <... mkdir resumed>) = 0 [pid 5795] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5804] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5804] ioctl(4, LOOP_SET_FD, 3 [ 123.846169][ T5798] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 123.866304][ T5797] REISERFS (device loop5): Using r5 hash to sort names [ 123.883146][ T5804] loop1: detected capacity change from 0 to 8192 [ 123.886412][ T5797] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5798] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 5805 attached ) = 3 [pid 5805] chdir("./59" [pid 5798] chdir("./file0" [pid 5805] <... chdir resumed>) = 0 [pid 5805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5798] <... chdir resumed>) = 0 [pid 5805] <... prctl resumed>) = 0 [pid 5798] ioctl(4, LOOP_CLR_FD [pid 5805] setpgid(0, 0 [pid 5798] <... ioctl resumed>) = 0 [pid 5805] <... setpgid resumed>) = 0 [pid 5798] close(4 [pid 5805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5798] <... close resumed>) = 0 [pid 5805] <... openat resumed>) = 3 [pid 5798] mkdir("./file1", 000 [pid 5805] write(3, "1000", 4 [pid 5798] <... mkdir resumed>) = 0 [pid 5805] <... write resumed>) = 4 [pid 5798] mkdir("./bus", 000 [pid 5805] close(3 [pid 5798] <... mkdir resumed>) = 0 [pid 5805] <... close resumed>) = 0 [pid 5798] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5805] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5805] memfd_create("syzkaller", 0) = 3 [pid 5805] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5804] <... ioctl resumed>) = 0 [pid 5804] close(3) = 0 [pid 5804] mkdir("./file0", 0777) = 0 [ 123.890011][ T5795] overlayfs: upper fs needs to support d_type. [ 123.919923][ T5798] overlayfs: upper fs needs to support d_type. [ 123.937556][ T5798] overlayfs: upper fs does not support tmpfile. [ 123.946024][ T5798] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5804] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... umount2 resumed>) = 0 [ 123.954701][ T5804] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 123.969373][ T5795] overlayfs: upper fs does not support tmpfile. [ 123.973016][ T5797] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 123.978383][ T5804] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 123.994809][ T5795] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5795] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5795] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5795] exit_group(0) = ? [pid 5795] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5795, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5070] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./59/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 123.995958][ T5798] overlayfs: failed to resolve './file0': -2 [ 124.003819][ T5795] overlayfs: failed to resolve './file0': -2 [ 124.014423][ T5804] REISERFS (device loop1): using ordered data mode [ 124.021401][ T5804] reiserfs: using flush barriers [ 124.028598][ T5804] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.045462][ T5804] REISERFS (device loop1): checking transaction log (loop1) [pid 5797] <... mount resumed>) = 0 [pid 5070] unlink("./59/binderfs" [pid 5068] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5070] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5805] 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"..., 4194304 [pid 5804] <... mount resumed>) = 0 [pid 5798] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5797] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5804] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5798] creat("./file0/file0", 0202 [pid 5797] <... openat resumed>) = 3 [pid 5068] lstat("./59/file0", [pid 5804] <... openat resumed>) = 3 [pid 5798] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5797] chdir("./file0" [pid 5804] chdir("./file0" [pid 5798] exit_group(0 [pid 5797] <... chdir resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5804] <... chdir resumed>) = 0 [pid 5798] <... exit_group resumed>) = ? [pid 5797] ioctl(4, LOOP_CLR_FD [pid 5068] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5804] ioctl(4, LOOP_CLR_FD [pid 5798] +++ exited with 0 +++ [pid 5804] <... ioctl resumed>) = 0 [pid 5797] <... ioctl resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5798, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5070] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5804] close(4 [pid 5797] close(4 [pid 5070] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5804] <... close resumed>) = 0 [pid 5797] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 4 [pid 5804] mkdir("./file1", 000 [pid 5797] mkdir("./file1", 000 [pid 5070] lstat("./59/file0", [pid 5068] fstat(4, [pid 5804] <... mkdir resumed>) = 0 [pid 5797] <... mkdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5804] mkdir("./bus", 000 [pid 5797] mkdir("./bus", 000 [pid 5070] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5804] <... mkdir resumed>) = 0 [pid 5797] <... mkdir resumed>) = 0 [pid 5072] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5804] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5797] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 124.054049][ T5804] REISERFS (device loop1): Using r5 hash to sort names [ 124.061151][ T5804] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 124.074068][ T5804] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5805] <... write resumed>) = 4194304 [pid 5072] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 4 [pid 5068] getdents64(4, [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5805] munmap(0x7f7f7af80000, 4194304 [pid 5072] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(4, [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5805] <... munmap resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(4 [pid 5805] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] lstat("./60/binderfs", [pid 5070] getdents64(4, [pid 5805] <... openat resumed>) = 4 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... close resumed>) = 0 [pid 5805] ioctl(4, LOOP_SET_FD, 3 [ 124.127865][ T5804] overlayfs: upper fs needs to support d_type. [ 124.127901][ T5797] overlayfs: upper fs needs to support d_type. [ 124.134731][ T5804] overlayfs: upper fs does not support tmpfile. [ 124.144470][ T5797] overlayfs: upper fs does not support tmpfile. [ 124.147347][ T5804] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 124.162400][ T5804] overlayfs: failed to resolve './file0': -2 [pid 5072] unlink("./60/binderfs" [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] rmdir("./59/file0" [pid 5805] <... ioctl resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] getdents64(4, [pid 5805] close(3 [pid 5072] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5805] <... close resumed>) = 0 [pid 5070] close(4 [pid 5068] getdents64(3, [pid 5805] mkdir("./file0", 0777 [pid 5070] <... close resumed>) = 0 [ 124.176004][ T5805] loop3: detected capacity change from 0 to 8192 [ 124.185884][ T5797] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5805] <... mkdir resumed>) = 0 [pid 5804] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5797] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] rmdir("./59/file0" [pid 5068] close(3 [pid 5805] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5804] creat("./file0/file0", 0202 [pid 5797] creat("./file0/file0", 0202 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5804] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5797] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] getdents64(3, [pid 5068] rmdir("./59" [pid 5804] exit_group(0 [pid 5797] exit_group(0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5804] <... exit_group resumed>) = ? [pid 5797] <... exit_group resumed>) = ? [pid 5070] close(3 [pid 5068] mkdir("./60", 0777 [pid 5804] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5072] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5804, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5797] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./59" [pid 5069] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] <... openat resumed>) = 4 [pid 5070] mkdir("./60", 0777 [pid 5069] fstat(3, [pid 5073] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(4, [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] getdents64(3, [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] getdents64(4, [pid 5070] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 124.225550][ T5797] overlayfs: failed to resolve './file0': -2 [ 124.254132][ T5805] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] lstat("./59/binderfs", [pid 5072] close(4 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5069] unlink("./59/binderfs" [pid 5072] rmdir("./60/file0" [pid 5069] <... unlink resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(3, [pid 5073] <... openat resumed>) = 3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] fstat(3, [pid 5072] close(3 [pid 5068] close(3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] rmdir("./60") = 0 [pid 5072] mkdir("./61", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5073] getdents64(3, [pid 5072] <... close resumed>) = 0 [pid 5070] close(3 [pid 5068] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5808 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./59/binderfs", [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5809 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5810 ./strace-static-x86_64: Process 5808 attached [pid 5073] unlink("./59/binderfs") = 0 [pid 5073] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5810 attached ./strace-static-x86_64: Process 5809 attached [pid 5810] chdir("./60" [pid 5809] chdir("./60") = 0 [pid 5810] <... chdir resumed>) = 0 [pid 5810] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5810] <... prctl resumed>) = 0 [pid 5809] <... prctl resumed>) = 0 [pid 5810] setpgid(0, 0 [pid 5809] setpgid(0, 0 [pid 5810] <... setpgid resumed>) = 0 [pid 5809] <... setpgid resumed>) = 0 [pid 5810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5810] <... openat resumed>) = 3 [pid 5809] <... openat resumed>) = 3 [pid 5810] write(3, "1000", 4 [pid 5809] write(3, "1000", 4 [pid 5810] <... write resumed>) = 4 [pid 5809] <... write resumed>) = 4 [pid 5810] close(3 [pid 5809] close(3 [ 124.279037][ T5805] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 124.292179][ T5805] REISERFS (device loop3): using ordered data mode [ 124.303188][ T5805] reiserfs: using flush barriers [pid 5808] chdir("./61" [pid 5810] <... close resumed>) = 0 [pid 5809] <... close resumed>) = 0 [pid 5808] <... chdir resumed>) = 0 [pid 5810] symlink("/dev/binderfs", "./binderfs" [pid 5809] symlink("/dev/binderfs", "./binderfs" [pid 5810] <... symlink resumed>) = 0 [pid 5809] <... symlink resumed>) = 0 [pid 5810] memfd_create("syzkaller", 0 [pid 5809] memfd_create("syzkaller", 0 [pid 5810] <... memfd_create resumed>) = 3 [pid 5809] <... memfd_create resumed>) = 3 [pid 5810] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5809] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5810] <... mmap resumed>) = 0x7f7f7af80000 [pid 5809] <... mmap resumed>) = 0x7f7f7af80000 [pid 5808] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5808] setpgid(0, 0) = 0 [pid 5808] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5808] write(3, "1000", 4) = 4 [pid 5808] close(3) = 0 [pid 5808] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5808] memfd_create("syzkaller", 0) = 3 [pid 5808] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 124.348258][ T5805] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5810] 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"..., 4194304 [pid 5809] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./59/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./59/file0", [pid 5073] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5808] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] fstat(4, [pid 5069] <... openat resumed>) = 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(4, [pid 5073] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5073] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(4, [pid 5073] close(4) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5073] rmdir("./59/file0") = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./59/file0" [pid 5073] getdents64(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 5073] close(3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] close(3 [pid 5073] rmdir("./59" [pid 5069] <... close resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] rmdir("./59" [pid 5073] mkdir("./60", 0777 [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5069] mkdir("./60", 0777 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] <... mkdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] <... openat resumed>) = 3 [pid 5073] close(3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5811 [pid 5069] <... close resumed>) = 0 [ 124.455420][ T5805] REISERFS (device loop3): checking transaction log (loop3) [ 124.479897][ T5805] REISERFS (device loop3): Using r5 hash to sort names [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5811 attached , child_tidptr=0x5555559fa5d0) = 5812 [pid 5811] chdir("./60") = 0 [pid 5811] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 5812 attached ) = 0 [pid 5812] chdir("./60" [pid 5811] setpgid(0, 0 [pid 5812] <... chdir resumed>) = 0 [pid 5811] <... setpgid resumed>) = 0 [pid 5812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5812] setpgid(0, 0) = 0 [pid 5812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5811] <... openat resumed>) = 3 [pid 5812] write(3, "1000", 4) = 4 [pid 5811] write(3, "1000", 4 [pid 5812] close(3 [pid 5811] <... write resumed>) = 4 [pid 5811] close(3) = 0 [pid 5811] symlink("/dev/binderfs", "./binderfs" [pid 5812] <... close resumed>) = 0 [pid 5811] <... symlink resumed>) = 0 [pid 5812] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5812] memfd_create("syzkaller", 0) = 3 [pid 5812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 124.519832][ T5805] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5811] memfd_create("syzkaller", 0 [pid 5810] <... write resumed>) = 4194304 [pid 5809] <... write resumed>) = 4194304 [pid 5810] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5811] <... memfd_create resumed>) = 3 [pid 5809] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5811] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5809] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5809] ioctl(4, LOOP_SET_FD, 3 [pid 5810] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5810] ioctl(4, LOOP_SET_FD, 3 [pid 5809] <... ioctl resumed>) = 0 [pid 5809] close(3 [pid 5805] <... mount resumed>) = 0 [pid 5809] <... close resumed>) = 0 [pid 5805] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5809] mkdir("./file0", 0777 [pid 5805] <... openat resumed>) = 3 [pid 5809] <... mkdir resumed>) = 0 [pid 5805] chdir("./file0" [pid 5809] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5805] <... chdir resumed>) = 0 [pid 5805] ioctl(4, LOOP_CLR_FD) = 0 [ 124.567889][ T5805] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 124.585178][ T5809] loop0: detected capacity change from 0 to 8192 [ 124.586010][ T5810] loop2: detected capacity change from 0 to 8192 [pid 5805] close(4) = 0 [pid 5805] mkdir("./file1", 000) = 0 [pid 5805] mkdir("./bus", 000) = 0 [pid 5808] <... write resumed>) = 4194304 [pid 5805] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5808] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5812] 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"..., 4194304 [pid 5810] <... ioctl resumed>) = 0 [pid 5810] close(3) = 0 [pid 5810] mkdir("./file0", 0777 [pid 5808] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5810] <... mkdir resumed>) = 0 [pid 5808] <... openat resumed>) = 4 [pid 5810] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5808] ioctl(4, LOOP_SET_FD, 3 [ 124.622617][ T5809] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.641119][ T5805] overlayfs: upper fs needs to support d_type. [ 124.649822][ T5808] loop4: detected capacity change from 0 to 8192 [ 124.650522][ T5809] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 124.665887][ T5805] overlayfs: upper fs does not support tmpfile. [pid 5811] 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"..., 4194304 [pid 5808] <... ioctl resumed>) = 0 [pid 5808] close(3) = 0 [pid 5808] mkdir("./file0", 0777) = 0 [ 124.667135][ T5810] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.673439][ T5805] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 124.706749][ T5809] REISERFS (device loop0): using ordered data mode [ 124.721327][ T5808] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.735135][ T5810] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 124.743359][ T5808] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 124.752481][ T5809] reiserfs: using flush barriers [ 124.760916][ T5805] overlayfs: failed to resolve './file0': -2 [pid 5808] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5812] <... write resumed>) = 4194304 [pid 5811] <... write resumed>) = 4194304 [pid 5805] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 124.762072][ T5809] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 124.784697][ T5808] REISERFS (device loop4): using ordered data mode [ 124.792636][ T5808] reiserfs: using flush barriers [ 124.793136][ T5810] REISERFS (device loop2): using ordered data mode [ 124.800279][ T5808] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5812] munmap(0x7f7f7af80000, 4194304 [pid 5805] creat("./file0/file0", 0202 [pid 5812] <... munmap resumed>) = 0 [pid 5811] munmap(0x7f7f7af80000, 4194304 [pid 5805] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5812] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5812] ioctl(4, LOOP_SET_FD, 3 [pid 5811] <... munmap resumed>) = 0 [pid 5805] exit_group(0 [pid 5812] <... ioctl resumed>) = 0 [pid 5811] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5805] <... exit_group resumed>) = ? [ 124.820383][ T5810] reiserfs: using flush barriers [ 124.822260][ T5808] REISERFS (device loop4): checking transaction log (loop4) [ 124.828570][ T5809] REISERFS (device loop0): checking transaction log (loop0) [ 124.836944][ T5812] loop1: detected capacity change from 0 to 8192 [ 124.843505][ T5809] REISERFS (device loop0): Using r5 hash to sort names [ 124.848655][ T5810] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5812] close(3 [pid 5811] <... openat resumed>) = 4 [pid 5805] +++ exited with 0 +++ [pid 5812] <... close resumed>) = 0 [pid 5811] ioctl(4, LOOP_SET_FD, 3 [pid 5809] <... mount resumed>) = 0 [ 124.855243][ T5809] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 124.872129][ T5810] REISERFS (device loop2): checking transaction log (loop2) [ 124.885298][ T5809] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 124.891110][ T5808] REISERFS (device loop4): Using r5 hash to sort names [ 124.901012][ T5810] REISERFS (device loop2): Using r5 hash to sort names [pid 5812] mkdir("./file0", 0777) = 0 [pid 5809] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5805, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5808] <... mount resumed>) = 0 [pid 5808] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5808] chdir("./file0") = 0 [pid 5808] ioctl(4, LOOP_CLR_FD) = 0 [pid 5808] close(4) = 0 [pid 5808] mkdir("./file1", 000 [pid 5812] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5809] <... openat resumed>) = 3 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5808] <... mkdir resumed>) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5809] chdir("./file0") = 0 [pid 5811] <... ioctl resumed>) = 0 [pid 5808] mkdir("./bus", 000) = 0 [pid 5808] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5809] ioctl(4, LOOP_CLR_FD) = 0 [pid 5809] close(4) = 0 [pid 5809] mkdir("./file1", 000 [pid 5811] close(3 [pid 5809] <... mkdir resumed>) = 0 [pid 5071] umount2("./59", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5811] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5811] mkdir("./file0", 0777 [pid 5071] openat(AT_FDCWD, "./59", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5810] <... mount resumed>) = 0 [pid 5811] <... mkdir resumed>) = 0 [pid 5809] mkdir("./bus", 000) = 0 [ 124.908493][ T5808] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 124.913501][ T5811] loop5: detected capacity change from 0 to 8192 [ 124.926628][ T5808] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 124.933141][ T5810] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 124.956336][ T5810] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5809] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5811] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5810] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... openat resumed>) = 3 [pid 5810] <... openat resumed>) = 3 [pid 5071] fstat(3, [ 124.967637][ T5812] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 124.972132][ T5809] overlayfs: upper fs needs to support d_type. [ 124.990046][ T5812] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 124.994484][ T5808] overlayfs: upper fs needs to support d_type. [ 124.999960][ T5812] REISERFS (device loop1): using ordered data mode [pid 5810] chdir("./file0") = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5810] ioctl(4, LOOP_CLR_FD [pid 5071] getdents64(3, [pid 5810] <... ioctl resumed>) = 0 [pid 5810] close(4 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5810] <... close resumed>) = 0 [pid 5071] umount2("./59/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5810] mkdir("./file1", 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5810] <... mkdir resumed>) = 0 [pid 5810] mkdir("./bus", 000 [pid 5071] lstat("./59/binderfs", [pid 5810] <... mkdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5810] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 125.006414][ T5811] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.011978][ T5812] reiserfs: using flush barriers [ 125.013042][ T5809] overlayfs: upper fs does not support tmpfile. [ 125.025473][ T5812] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 125.030486][ T5809] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 125.063743][ T5809] overlayfs: failed to resolve './file0': -2 [pid 5071] unlink("./59/binderfs") = 0 [pid 5071] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5809] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5809] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5809] exit_group(0) = ? [pid 5809] +++ exited with 0 +++ [ 125.071240][ T5810] overlayfs: upper fs needs to support d_type. [ 125.071535][ T5812] REISERFS (device loop1): checking transaction log (loop1) [ 125.085742][ T5808] overlayfs: upper fs does not support tmpfile. [ 125.092811][ T5808] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 125.100407][ T5810] overlayfs: upper fs does not support tmpfile. [ 125.101840][ T5808] overlayfs: failed to resolve './file0': -2 [ 125.114027][ T5811] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5808] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5809, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5808] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5808] exit_group(0) = ? [pid 5068] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5808] +++ exited with 0 +++ [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5808, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 5068] lstat("./60/binderfs", [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] getdents64(3, [pid 5068] unlink("./60/binderfs" [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... unlink resumed>) = 0 [pid 5072] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./61/binderfs") = 0 [ 125.123226][ T5811] REISERFS (device loop5): using ordered data mode [ 125.130309][ T5811] reiserfs: using flush barriers [ 125.139704][ T5811] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 125.167948][ T5810] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 125.179973][ T5812] REISERFS (device loop1): Using r5 hash to sort names [ 125.194115][ T5811] REISERFS (device loop5): checking transaction log (loop5) [ 125.202987][ T5811] REISERFS (device loop5): Using r5 hash to sort names [ 125.204128][ T5810] overlayfs: failed to resolve './file0': -2 [ 125.210726][ T5811] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 125.229663][ T5811] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 125.233546][ T5812] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5810] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = 0 [pid 5810] creat("./file0/file0", 0202 [pid 5071] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5810] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5810] exit_group(0 [pid 5071] lstat("./59/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5810] <... exit_group resumed>) = ? [pid 5071] umount2("./59/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5810] +++ exited with 0 +++ [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5810, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5071] openat(AT_FDCWD, "./59/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./60/binderfs" [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... unlink resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./59/file0" [pid 5811] <... mount resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5811] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] getdents64(3, [pid 5811] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5811] chdir("./file0" [pid 5071] rmdir("./59" [pid 5811] <... chdir resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5811] ioctl(4, LOOP_CLR_FD [pid 5071] mkdir("./60", 0777 [pid 5811] <... ioctl resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5811] close(4 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5811] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5811] mkdir("./file1", 000) = 0 [pid 5811] mkdir("./bus", 000) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5811] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 125.275567][ T5812] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5818 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./60/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./60") = 0 [pid 5068] mkdir("./61", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5818 attached [pid 5818] chdir("./60" [pid 5812] <... mount resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5072] lstat("./61/file0", [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(3 [pid 5072] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5818] <... chdir resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5819 [pid 5818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] fstat(4, [pid 5818] <... prctl resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5818] setpgid(0, 0 [pid 5072] <... close resumed>) = 0 [pid 5818] <... setpgid resumed>) = 0 [pid 5072] rmdir("./61/file0"./strace-static-x86_64: Process 5819 attached [pid 5818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5812] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... rmdir resumed>) = 0 [pid 5819] chdir("./61" [pid 5072] getdents64(3, [pid 5819] <... chdir resumed>) = 0 [pid 5818] <... openat resumed>) = 3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5819] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5818] write(3, "1000", 4 [pid 5812] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5819] <... prctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [ 125.338595][ T5811] overlayfs: upper fs needs to support d_type. [ 125.369007][ T5811] overlayfs: upper fs does not support tmpfile. [pid 5819] setpgid(0, 0 [pid 5072] rmdir("./61" [pid 5819] <... setpgid resumed>) = 0 [pid 5818] <... write resumed>) = 4 [pid 5812] chdir("./file0" [pid 5811] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5818] close(3 [pid 5812] <... chdir resumed>) = 0 [pid 5811] creat("./file0/file0", 0202 [pid 5072] <... rmdir resumed>) = 0 [pid 5819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5818] <... close resumed>) = 0 [pid 5812] ioctl(4, LOOP_CLR_FD [pid 5811] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] mkdir("./62", 0777 [pid 5819] <... openat resumed>) = 3 [pid 5818] symlink("/dev/binderfs", "./binderfs" [pid 5812] <... ioctl resumed>) = 0 [pid 5811] exit_group(0 [pid 5819] write(3, "1000", 4 [pid 5818] <... symlink resumed>) = 0 [pid 5812] close(4 [pid 5811] <... exit_group resumed>) = ? [pid 5072] <... mkdir resumed>) = 0 [pid 5819] <... write resumed>) = 4 [pid 5818] memfd_create("syzkaller", 0 [pid 5812] <... close resumed>) = 0 [pid 5811] +++ exited with 0 +++ [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5819] close(3 [pid 5818] <... memfd_create resumed>) = 3 [pid 5812] mkdir("./file1", 000 [pid 5072] <... openat resumed>) = 3 [pid 5819] <... close resumed>) = 0 [pid 5818] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5812] <... mkdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5811, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5819] symlink("/dev/binderfs", "./binderfs" [pid 5818] <... mmap resumed>) = 0x7f7f7af80000 [pid 5812] mkdir("./bus", 000 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5819] <... symlink resumed>) = 0 [pid 5812] <... mkdir resumed>) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [ 125.384199][ T5811] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 125.392586][ T5811] overlayfs: failed to resolve './file0': -2 [pid 5072] close(3 [pid 5070] <... umount2 resumed>) = 0 [pid 5819] memfd_create("syzkaller", 0 [pid 5812] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... close resumed>) = 0 [pid 5070] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5819] <... memfd_create resumed>) = 3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5819] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./60/file0", [pid 5073] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5820 ./strace-static-x86_64: Process 5820 attached [pid 5073] <... openat resumed>) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5820] chdir("./62" [pid 5073] fstat(3, [pid 5070] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5820] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] <... prctl resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5820] setpgid(0, 0 [pid 5073] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5820] <... setpgid resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 4 [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./60/binderfs") = 0 [pid 5073] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5820] <... openat resumed>) = 3 [pid 5070] fstat(4, [ 125.438899][ T5812] overlayfs: upper fs needs to support d_type. [ 125.454320][ T5812] overlayfs: upper fs does not support tmpfile. [ 125.465963][ T5812] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5820] write(3, "1000", 4) = 4 [pid 5819] 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"..., 4194304 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5820] close(3) = 0 [pid 5070] getdents64(4, [pid 5820] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5820] <... symlink resumed>) = 0 [pid 5070] getdents64(4, [pid 5820] memfd_create("syzkaller", 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5820] <... memfd_create resumed>) = 3 [pid 5070] close(4 [pid 5820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... close resumed>) = 0 [pid 5820] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] rmdir("./60/file0" [pid 5818] 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"..., 4194304 [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5812] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] close(3 [pid 5812] creat("./file0/file0", 0202 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./60" [pid 5812] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./61", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5812] exit_group(0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5812] <... exit_group resumed>) = ? [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5821 [pid 5812] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5812, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./60/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 5821 attached [ 125.502390][ T5812] overlayfs: failed to resolve './file0': -2 [pid 5069] unlink("./60/binderfs" [pid 5821] chdir("./61") = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5821] <... prctl resumed>) = 0 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5821] write(3, "1000", 4) = 4 [pid 5821] close(3) = 0 [pid 5821] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5821] memfd_create("syzkaller", 0) = 3 [pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5820] 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"..., 4194304 [pid 5818] <... write resumed>) = 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./60/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5819] <... write resumed>) = 4194304 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5819] munmap(0x7f7f7af80000, 4194304 [pid 5073] close(4) = 0 [pid 5073] rmdir("./60/file0") = 0 [pid 5819] <... munmap resumed>) = 0 [pid 5073] getdents64(3, [pid 5819] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5819] <... openat resumed>) = 4 [pid 5818] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... close resumed>) = 0 [pid 5819] ioctl(4, LOOP_SET_FD, 3 [pid 5818] <... munmap resumed>) = 0 [pid 5073] rmdir("./60" [pid 5069] <... umount2 resumed>) = 0 [pid 5818] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5073] <... rmdir resumed>) = 0 [pid 5818] <... openat resumed>) = 4 [pid 5073] mkdir("./61", 0777 [pid 5818] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5819] <... ioctl resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5819] close(3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5069] lstat("./60/file0", [pid 5819] <... close resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5819] mkdir("./file0", 0777 [pid 5073] close(3 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5821] 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"..., 4194304 [pid 5819] <... mkdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5822 [pid 5818] <... ioctl resumed>) = 0 [pid 5819] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5822 attached ) = 4 [ 125.683228][ T5819] loop0: detected capacity change from 0 to 8192 [ 125.690621][ T5818] loop3: detected capacity change from 0 to 8192 [pid 5818] close(3 [pid 5069] fstat(4, [pid 5822] chdir("./61" [pid 5820] <... write resumed>) = 4194304 [pid 5818] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5822] <... chdir resumed>) = 0 [pid 5820] munmap(0x7f7f7af80000, 4194304 [pid 5818] mkdir("./file0", 0777 [pid 5069] getdents64(4, [pid 5822] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5820] <... munmap resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5822] <... prctl resumed>) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5818] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] getdents64(4, [pid 5822] setpgid(0, 0 [pid 5820] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5822] <... setpgid resumed>) = 0 [pid 5820] ioctl(4, LOOP_SET_FD, 3 [pid 5069] close(4 [pid 5822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5821] <... write resumed>) = 4194304 [pid 5820] <... ioctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5822] write(3, "1000", 4 [pid 5069] rmdir("./60/file0" [pid 5822] <... write resumed>) = 4 [pid 5069] <... rmdir resumed>) = 0 [pid 5822] close(3 [pid 5069] getdents64(3, [pid 5822] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5822] symlink("/dev/binderfs", "./binderfs" [pid 5069] close(3 [pid 5822] <... symlink resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5822] memfd_create("syzkaller", 0 [pid 5069] rmdir("./60" [pid 5822] <... memfd_create resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5822] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] mkdir("./61", 0777 [pid 5822] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5825 [pid 5820] close(3) = 0 [pid 5820] mkdir("./file0", 0777) = 0 [pid 5820] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5821] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 125.723127][ T5819] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.749194][ T5820] loop4: detected capacity change from 0 to 8192 [ 125.751225][ T5819] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 125.766905][ T5818] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5821] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5825 attached ) = 0 [pid 5821] close(3) = 0 [pid 5821] mkdir("./file0", 0777) = 0 [pid 5821] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5825] chdir("./61") = 0 [pid 5825] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5825] setpgid(0, 0) = 0 [pid 5825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5825] write(3, "1000", 4) = 4 [pid 5825] close(3) = 0 [pid 5825] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5825] memfd_create("syzkaller", 0) = 3 [pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 125.795479][ T5821] loop2: detected capacity change from 0 to 8192 [ 125.796555][ T5818] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 125.811247][ T5819] REISERFS (device loop0): using ordered data mode [ 125.818343][ T5820] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.836795][ T5821] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 125.849833][ T5819] reiserfs: using flush barriers [ 125.850922][ T5818] REISERFS (device loop3): using ordered data mode [ 125.861364][ T5819] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 125.877642][ T5818] reiserfs: using flush barriers [ 125.879179][ T5819] REISERFS (device loop0): checking transaction log (loop0) [pid 5822] 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"..., 4194304 [ 125.889926][ T5818] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 125.890244][ T5818] REISERFS (device loop3): checking transaction log (loop3) [ 125.914929][ T5821] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 125.916143][ T5820] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [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"..., 4194304) = 4194304 [ 125.956843][ T5820] REISERFS (device loop4): using ordered data mode [ 125.960336][ T5818] REISERFS (device loop3): Using r5 hash to sort names [ 125.963941][ T5821] REISERFS (device loop2): using ordered data mode [ 125.970957][ T5819] REISERFS (device loop0): Using r5 hash to sort names [ 125.976841][ T5821] reiserfs: using flush barriers [ 125.991056][ T5821] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5825] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5825] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 125.994979][ T5818] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 126.020762][ T5821] REISERFS (device loop2): checking transaction log (loop2) [ 126.025085][ T5820] reiserfs: using flush barriers [ 126.029778][ T5821] REISERFS (device loop2): Using r5 hash to sort names [ 126.040739][ T5821] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5821] <... mount resumed>) = 0 [ 126.054003][ T5825] loop1: detected capacity change from 0 to 8192 [ 126.060696][ T5819] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 126.060888][ T5821] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 126.073584][ T5820] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 126.083392][ T5818] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5825] close(3 [pid 5821] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5822] <... write resumed>) = 4194304 [pid 5822] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5825] <... close resumed>) = 0 [pid 5821] <... openat resumed>) = 3 [pid 5825] mkdir("./file0", 0777 [pid 5821] chdir("./file0" [pid 5819] <... mount resumed>) = 0 [pid 5818] <... mount resumed>) = 0 [pid 5822] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5822] ioctl(4, LOOP_SET_FD, 3 [pid 5825] <... mkdir resumed>) = 0 [pid 5821] <... chdir resumed>) = 0 [pid 5819] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5818] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5825] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5822] <... ioctl resumed>) = 0 [pid 5822] close(3) = 0 [pid 5821] ioctl(4, LOOP_CLR_FD [pid 5819] <... openat resumed>) = 3 [pid 5818] <... openat resumed>) = 3 [pid 5822] mkdir("./file0", 0777 [pid 5821] <... ioctl resumed>) = 0 [pid 5819] chdir("./file0" [pid 5818] chdir("./file0" [pid 5822] <... mkdir resumed>) = 0 [pid 5822] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 126.108221][ T5819] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 126.119301][ T5820] REISERFS (device loop4): checking transaction log (loop4) [ 126.127347][ T5822] loop5: detected capacity change from 0 to 8192 [ 126.135185][ T5820] REISERFS (device loop4): Using r5 hash to sort names [ 126.143599][ T5820] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5821] close(4) = 0 [pid 5819] <... chdir resumed>) = 0 [pid 5818] <... chdir resumed>) = 0 [pid 5821] mkdir("./file1", 000) = 0 [pid 5821] mkdir("./bus", 000) = 0 [ 126.157211][ T5825] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.170467][ T5825] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 126.180008][ T5820] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 126.180234][ T5822] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 126.189399][ T5825] REISERFS (device loop1): using ordered data mode [pid 5821] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5819] ioctl(4, LOOP_CLR_FD [pid 5818] ioctl(4, LOOP_CLR_FD [pid 5820] <... mount resumed>) = 0 [pid 5819] <... ioctl resumed>) = 0 [pid 5818] <... ioctl resumed>) = 0 [pid 5820] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5819] close(4 [pid 5818] close(4 [pid 5820] <... openat resumed>) = 3 [pid 5819] <... close resumed>) = 0 [pid 5818] <... close resumed>) = 0 [pid 5820] chdir("./file0" [pid 5819] mkdir("./file1", 000 [pid 5818] mkdir("./file1", 000 [pid 5820] <... chdir resumed>) = 0 [pid 5819] <... mkdir resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5820] ioctl(4, LOOP_CLR_FD [pid 5819] mkdir("./bus", 000 [pid 5818] mkdir("./bus", 000 [pid 5820] <... ioctl resumed>) = 0 [pid 5819] <... mkdir resumed>) = 0 [pid 5818] <... mkdir resumed>) = 0 [pid 5820] close(4 [pid 5819] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5818] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5820] <... close resumed>) = 0 [pid 5820] mkdir("./file1", 000) = 0 [pid 5820] mkdir("./bus", 000) = 0 [ 126.204295][ T5821] overlayfs: upper fs needs to support d_type. [ 126.216584][ T5821] overlayfs: upper fs does not support tmpfile. [ 126.216881][ T5819] overlayfs: upper fs needs to support d_type. [ 126.223468][ T5821] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 126.229846][ T5818] overlayfs: upper fs needs to support d_type. [ 126.237354][ T5821] overlayfs: failed to resolve './file0': -2 [ 126.250765][ T5825] reiserfs: using flush barriers [pid 5820] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5821] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5821] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5821] exit_group(0) = ? [pid 5821] +++ exited with 0 +++ [ 126.251319][ T5818] overlayfs: upper fs does not support tmpfile. [ 126.262854][ T5820] overlayfs: upper fs needs to support d_type. [ 126.263632][ T5825] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 126.273948][ T5818] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 126.286266][ T5825] REISERFS (device loop1): checking transaction log (loop1) [ 126.292923][ T5819] overlayfs: upper fs does not support tmpfile. [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./61/binderfs") = 0 [ 126.300483][ T5825] REISERFS (device loop1): Using r5 hash to sort names [ 126.310533][ T5820] overlayfs: upper fs does not support tmpfile. [ 126.313693][ T5825] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 126.332335][ T5825] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 126.337266][ T5820] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5825] <... mount resumed>) = 0 [pid 5825] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5818] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5818] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5818] exit_group(0) = ? [pid 5818] +++ exited with 0 +++ [ 126.365012][ T5818] overlayfs: failed to resolve './file0': -2 [ 126.372837][ T5822] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 126.376298][ T5819] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 126.385230][ T5822] REISERFS (device loop5): using ordered data mode [pid 5825] <... openat resumed>) = 3 [pid 5825] chdir("./file0" [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5818, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5825] <... chdir resumed>) = 0 [pid 5071] umount2("./60", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5825] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = 0 [pid 5825] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5825] close(4 [pid 5071] openat(AT_FDCWD, "./60", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5825] <... close resumed>) = 0 [pid 5071] fstat(3, [pid 5825] mkdir("./file1", 000) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5825] mkdir("./bus", 000 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5825] <... mkdir resumed>) = 0 [ 126.410660][ T5820] overlayfs: failed to resolve './file0': -2 [ 126.432372][ T5822] reiserfs: using flush barriers [pid 5825] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] umount2("./60/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./60/binderfs", [pid 5070] lstat("./61/file0", [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5820] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] unlink("./60/binderfs" [pid 5070] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5820] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5820] exit_group(0) = ? [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5820] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5072] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 4 [pid 5072] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] fstat(4, [pid 5072] unlink("./62/binderfs") = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 126.450855][ T5822] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 126.467418][ T5819] overlayfs: failed to resolve './file0': -2 [ 126.469944][ T5825] overlayfs: upper fs needs to support d_type. [ 126.479883][ T5825] overlayfs: upper fs does not support tmpfile. [ 126.488105][ T5825] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 126.500641][ T5822] REISERFS (device loop5): checking transaction log (loop5) [pid 5072] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5825] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5819] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] getdents64(4, [pid 5825] creat("./file0/file0", 0202 [pid 5819] creat("./file0/file0", 0202 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5825] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5819] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] getdents64(4, [pid 5825] exit_group(0 [pid 5819] exit_group(0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5825] <... exit_group resumed>) = ? [pid 5819] <... exit_group resumed>) = ? [pid 5070] close(4 [pid 5825] +++ exited with 0 +++ [pid 5819] +++ exited with 0 +++ [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./61/file0") = 0 [pid 5069] --- 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=19 /* 0.19 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5819, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- [pid 5070] getdents64(3, [pid 5069] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(3 [pid 5069] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [ 126.519819][ T5825] overlayfs: failed to resolve './file0': -2 [ 126.536620][ T5822] REISERFS (device loop5): Using r5 hash to sort names [pid 5069] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5070] rmdir("./61" [pid 5069] fstat(3, [pid 5068] fstat(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] mkdir("./62", 0777 [pid 5069] getdents64(3, [pid 5068] getdents64(3, [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] lstat("./61/binderfs", [pid 5068] lstat("./61/binderfs", [pid 5071] <... umount2 resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] close(3 [pid 5069] unlink("./61/binderfs" [pid 5068] unlink("./61/binderfs" [pid 5070] <... close resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5830 ./strace-static-x86_64: Process 5830 attached [pid 5830] chdir("./62") = 0 [pid 5071] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5830] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5822] <... mount resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] lstat("./60/file0", [pid 5830] <... prctl resumed>) = 0 [pid 5822] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5830] setpgid(0, 0 [pid 5822] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./60/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5830] <... setpgid resumed>) = 0 [pid 5822] chdir("./file0" [pid 5072] lstat("./62/file0", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5822] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./60/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5830] <... openat resumed>) = 3 [pid 5822] ioctl(4, LOOP_CLR_FD [pid 5072] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5830] write(3, "1000", 4 [pid 5822] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(4, [pid 5830] <... write resumed>) = 4 [pid 5822] close(4 [pid 5072] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5830] close(3 [pid 5822] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5071] getdents64(4, [pid 5830] <... close resumed>) = 0 [pid 5822] mkdir("./file1", 000 [pid 5072] fstat(4, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5830] symlink("/dev/binderfs", "./binderfs" [pid 5822] <... mkdir resumed>) = 0 [ 126.596101][ T5822] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 126.622767][ T5822] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5830] <... symlink resumed>) = 0 [pid 5822] mkdir("./bus", 000 [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5830] memfd_create("syzkaller", 0 [pid 5822] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] close(4 [pid 5830] <... memfd_create resumed>) = 3 [pid 5822] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 5830] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./60/file0" [pid 5830] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5072] rmdir("./62/file0" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5072] getdents64(3, [pid 5071] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./60" [pid 5072] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] mkdir("./61", 0777 [pid 5072] rmdir("./62" [pid 5071] <... mkdir resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] mkdir("./63", 0777 [pid 5071] <... openat resumed>) = 3 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... openat resumed>) = 3 [pid 5071] close(3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] close(3) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5831 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5832 ./strace-static-x86_64: Process 5831 attached ./strace-static-x86_64: Process 5832 attached [pid 5832] chdir("./63" [pid 5831] chdir("./61" [pid 5832] <... chdir resumed>) = 0 [pid 5831] <... chdir resumed>) = 0 [pid 5832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5831] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5832] <... prctl resumed>) = 0 [pid 5831] <... prctl resumed>) = 0 [ 126.649186][ T5822] overlayfs: upper fs needs to support d_type. [ 126.666491][ T5822] overlayfs: upper fs does not support tmpfile. [pid 5832] setpgid(0, 0 [pid 5831] setpgid(0, 0 [pid 5832] <... setpgid resumed>) = 0 [pid 5831] <... setpgid resumed>) = 0 [pid 5832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] <... openat resumed>) = 3 [pid 5831] <... openat resumed>) = 3 [pid 5832] write(3, "1000", 4 [pid 5831] write(3, "1000", 4 [pid 5832] <... write resumed>) = 4 [pid 5831] <... write resumed>) = 4 [pid 5832] close(3 [pid 5831] close(3 [pid 5832] <... close resumed>) = 0 [pid 5831] <... close resumed>) = 0 [pid 5832] symlink("/dev/binderfs", "./binderfs" [pid 5831] symlink("/dev/binderfs", "./binderfs" [pid 5832] <... symlink resumed>) = 0 [pid 5831] <... symlink resumed>) = 0 [pid 5832] memfd_create("syzkaller", 0 [pid 5831] memfd_create("syzkaller", 0 [pid 5832] <... memfd_create resumed>) = 3 [pid 5831] <... memfd_create resumed>) = 3 [pid 5832] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5831] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5832] <... mmap resumed>) = 0x7f7f7af80000 [pid 5831] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5068] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./61/file0", [pid 5069] lstat("./61/file0", [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 4 [ 126.705257][ T5822] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] <... openat resumed>) = 4 [pid 5068] fstat(4, [pid 5069] fstat(4, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5068] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5068] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5068] close(4 [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5830] 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"..., 4194304 [pid 5069] rmdir("./61/file0" [pid 5068] rmdir("./61/file0" [pid 5822] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5822] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5069] getdents64(3, [pid 5068] getdents64(3, [pid 5822] exit_group(0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5822] <... exit_group resumed>) = ? [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5822] +++ exited with 0 +++ [pid 5068] close(3 [pid 5069] close(3 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5822, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [pid 5073] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./61" [pid 5068] rmdir("./61" [pid 5073] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] mkdir("./62", 0777 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... mkdir resumed>) = 0 [pid 5068] mkdir("./62", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] lstat("./61/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5073] unlink("./61/binderfs" [pid 5069] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 126.750833][ T5822] overlayfs: failed to resolve './file0': -2 [pid 5069] close(3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5833 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5832] 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"..., 4194304./strace-static-x86_64: Process 5834 attached ./strace-static-x86_64: Process 5833 attached [pid 5831] 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"..., 4194304 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5834 [pid 5834] chdir("./62") = 0 [pid 5833] chdir("./62" [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5833] <... chdir resumed>) = 0 [pid 5834] <... prctl resumed>) = 0 [pid 5833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5834] setpgid(0, 0 [pid 5833] <... prctl resumed>) = 0 [pid 5833] setpgid(0, 0 [pid 5834] <... setpgid resumed>) = 0 [pid 5833] <... setpgid resumed>) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5834] <... openat resumed>) = 3 [pid 5833] <... openat resumed>) = 3 [pid 5834] write(3, "1000", 4 [pid 5833] write(3, "1000", 4) = 4 [pid 5834] <... write resumed>) = 4 [pid 5833] close(3 [pid 5834] close(3 [pid 5833] <... close resumed>) = 0 [pid 5834] <... close resumed>) = 0 [pid 5834] symlink("/dev/binderfs", "./binderfs" [pid 5833] symlink("/dev/binderfs", "./binderfs" [pid 5834] <... symlink resumed>) = 0 [pid 5833] <... symlink resumed>) = 0 [pid 5834] memfd_create("syzkaller", 0 [pid 5833] memfd_create("syzkaller", 0 [pid 5834] <... memfd_create resumed>) = 3 [pid 5833] <... memfd_create resumed>) = 3 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5833] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5834] <... mmap resumed>) = 0x7f7f7af80000 [pid 5833] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./61/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./61/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./61") = 0 [pid 5073] mkdir("./62", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5834] 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"..., 4194304 [pid 5833] 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"..., 4194304 [pid 5830] <... write resumed>) = 4194304 [pid 5073] <... openat resumed>) = 3 [pid 5831] <... write resumed>) = 4194304 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5830] munmap(0x7f7f7af80000, 4194304 [pid 5073] close(3) = 0 [pid 5830] <... munmap resumed>) = 0 [pid 5830] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5830] ioctl(4, LOOP_SET_FD, 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5831] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5835 [pid 5831] ioctl(4, LOOP_SET_FD, 3 [pid 5830] <... ioctl resumed>) = 0 [pid 5830] close(3) = 0 [pid 5830] mkdir("./file0", 0777) = 0 [pid 5830] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 5835 attached [pid 5835] chdir("./62") = 0 [pid 5835] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5835] setpgid(0, 0) = 0 [pid 5835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5835] write(3, "1000", 4) = 4 [pid 5835] close(3) = 0 [pid 5835] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5835] memfd_create("syzkaller", 0) = 3 [pid 5835] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5832] <... write resumed>) = 4194304 [pid 5832] munmap(0x7f7f7af80000, 4194304 [pid 5831] <... ioctl resumed>) = 0 [pid 5832] <... munmap resumed>) = 0 [pid 5831] close(3) = 0 [pid 5831] mkdir("./file0", 0777 [pid 5832] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5831] <... mkdir resumed>) = 0 [pid 5832] <... openat resumed>) = 4 [pid 5831] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 126.973227][ T5830] loop2: detected capacity change from 0 to 8192 [ 126.984822][ T5831] loop3: detected capacity change from 0 to 8192 [ 127.006295][ T5830] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5832] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5832] close(3 [pid 5833] <... write resumed>) = 4194304 [pid 5832] <... close resumed>) = 0 [pid 5833] munmap(0x7f7f7af80000, 4194304 [pid 5832] mkdir("./file0", 0777) = 0 [pid 5833] <... munmap resumed>) = 0 [pid 5832] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5833] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 127.035957][ T5832] loop4: detected capacity change from 0 to 8192 [ 127.044769][ T5831] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.074206][ T5830] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5833] ioctl(4, LOOP_SET_FD, 3 [pid 5835] 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"..., 4194304 [pid 5833] <... ioctl resumed>) = 0 [pid 5834] <... write resumed>) = 4194304 [pid 5834] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3 [pid 5833] close(3) = 0 [ 127.074392][ T5833] loop1: detected capacity change from 0 to 8192 [ 127.084923][ T5831] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 127.090228][ T5832] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.109225][ T5830] REISERFS (device loop2): using ordered data mode [ 127.114284][ T5832] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 127.129760][ T5834] loop0: detected capacity change from 0 to 8192 [pid 5833] mkdir("./file0", 0777) = 0 [pid 5833] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5834] <... ioctl resumed>) = 0 [pid 5834] close(3) = 0 [pid 5834] mkdir("./file0", 0777) = 0 [ 127.137944][ T5831] REISERFS (device loop3): using ordered data mode [ 127.147187][ T5830] reiserfs: using flush barriers [ 127.147895][ T5832] REISERFS (device loop4): using ordered data mode [ 127.160136][ T5833] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.173346][ T5832] reiserfs: using flush barriers [pid 5834] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5835] <... write resumed>) = 4194304 [ 127.174191][ T5834] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.179331][ T5831] reiserfs: using flush barriers [ 127.196391][ T5832] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.197863][ T5834] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 127.213479][ T5830] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5835] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5835] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 127.239062][ T5834] REISERFS (device loop0): using ordered data mode [ 127.241299][ T5831] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.262254][ T5833] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 127.273511][ T5835] loop5: detected capacity change from 0 to 8192 [ 127.273889][ T5834] reiserfs: using flush barriers [pid 5835] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5835] close(3) = 0 [pid 5835] mkdir("./file0", 0777) = 0 [ 127.280293][ T5832] REISERFS (device loop4): checking transaction log (loop4) [ 127.286836][ T5833] REISERFS (device loop1): using ordered data mode [ 127.293513][ T5832] REISERFS (device loop4): Using r5 hash to sort names [ 127.303113][ T5830] REISERFS (device loop2): checking transaction log (loop2) [ 127.306423][ T5831] REISERFS (device loop3): checking transaction log (loop3) [ 127.316914][ T5834] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.320794][ T5833] reiserfs: using flush barriers [ 127.338896][ T5835] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 127.342680][ T5832] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.356653][ T5835] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 127.367030][ T5833] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.367372][ T5833] REISERFS (device loop1): checking transaction log (loop1) [ 127.377221][ T5835] REISERFS (device loop5): using ordered data mode [ 127.400871][ T5831] REISERFS (device loop3): Using r5 hash to sort names [ 127.406096][ T5835] reiserfs: using flush barriers [ 127.407172][ T5832] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 127.413546][ T5830] REISERFS (device loop2): Using r5 hash to sort names [pid 5835] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5832] <... mount resumed>) = 0 [pid 5832] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5832] chdir("./file0") = 0 [pid 5832] ioctl(4, LOOP_CLR_FD) = 0 [ 127.417916][ T5835] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 127.428600][ T5834] REISERFS (device loop0): checking transaction log (loop0) [ 127.434054][ T5835] REISERFS (device loop5): checking transaction log (loop5) [ 127.452067][ T5831] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.465346][ T5835] REISERFS (device loop5): Using r5 hash to sort names [pid 5832] close(4) = 0 [pid 5832] mkdir("./file1", 000) = 0 [pid 5832] mkdir("./bus", 000) = 0 [ 127.485371][ T5833] REISERFS (device loop1): Using r5 hash to sort names [ 127.492416][ T5833] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.505285][ T5835] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.518190][ T5833] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 127.524550][ T5832] overlayfs: upper fs needs to support d_type. [pid 5832] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5833] <... mount resumed>) = 0 [pid 5833] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5830] <... mount resumed>) = 0 [ 127.537766][ T5830] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.537964][ T5834] REISERFS (device loop0): Using r5 hash to sort names [ 127.550805][ T5835] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 127.560509][ T5832] overlayfs: upper fs does not support tmpfile. [ 127.566826][ T5830] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5835] <... mount resumed>) = 0 [pid 5833] <... openat resumed>) = 3 [pid 5831] <... mount resumed>) = 0 [pid 5830] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5835] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5833] chdir("./file0" [pid 5835] <... openat resumed>) = 3 [pid 5833] <... chdir resumed>) = 0 [pid 5831] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5830] <... openat resumed>) = 3 [pid 5835] chdir("./file0") = 0 [pid 5835] ioctl(4, LOOP_CLR_FD) = 0 [pid 5835] close(4) = 0 [pid 5835] mkdir("./file1", 000) = 0 [pid 5835] mkdir("./bus", 000) = 0 [pid 5833] ioctl(4, LOOP_CLR_FD [pid 5831] <... openat resumed>) = 3 [pid 5830] chdir("./file0" [pid 5835] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5832] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5832] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5832] exit_group(0 [pid 5833] <... ioctl resumed>) = 0 [pid 5831] chdir("./file0" [pid 5830] <... chdir resumed>) = 0 [pid 5834] <... mount resumed>) = 0 [pid 5833] close(4 [pid 5831] <... chdir resumed>) = 0 [ 127.567177][ T5831] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 127.576298][ T5832] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 127.598813][ T5834] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 127.603129][ T5832] overlayfs: failed to resolve './file0': -2 [ 127.612474][ T5834] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 127.633937][ T5835] overlayfs: upper fs needs to support d_type. [pid 5830] ioctl(4, LOOP_CLR_FD [pid 5833] <... close resumed>) = 0 [pid 5831] ioctl(4, LOOP_CLR_FD [pid 5830] <... ioctl resumed>) = 0 [pid 5834] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5833] mkdir("./file1", 000 [pid 5832] <... exit_group resumed>) = ? [pid 5831] <... ioctl resumed>) = 0 [pid 5830] close(4 [pid 5834] <... openat resumed>) = 3 [pid 5833] <... mkdir resumed>) = 0 [pid 5832] +++ exited with 0 +++ [pid 5831] close(4 [pid 5830] <... close resumed>) = 0 [pid 5835] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5834] chdir("./file0" [pid 5833] mkdir("./bus", 000 [pid 5831] <... close resumed>) = 0 [pid 5830] mkdir("./file1", 000 [pid 5835] creat("./file0/file0", 0202 [pid 5834] <... chdir resumed>) = 0 [pid 5833] <... mkdir resumed>) = 0 [pid 5831] mkdir("./file1", 000 [pid 5830] <... mkdir resumed>) = 0 [pid 5835] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5834] ioctl(4, LOOP_CLR_FD [pid 5833] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5831] <... mkdir resumed>) = 0 [ 127.641570][ T5835] overlayfs: upper fs does not support tmpfile. [ 127.666919][ T5835] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 127.675871][ T5835] overlayfs: failed to resolve './file0': -2 [pid 5830] mkdir("./bus", 000 [pid 5835] exit_group(0 [pid 5834] <... ioctl resumed>) = 0 [pid 5831] mkdir("./bus", 000 [pid 5830] <... mkdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5832, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 5835] <... exit_group resumed>) = ? [pid 5834] close(4 [pid 5831] <... mkdir resumed>) = 0 [pid 5830] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5835] +++ exited with 0 +++ [pid 5834] <... close resumed>) = 0 [ 127.706029][ T5833] overlayfs: upper fs needs to support d_type. [ 127.712248][ T5833] overlayfs: upper fs does not support tmpfile. [ 127.724183][ T5830] overlayfs: upper fs needs to support d_type. [ 127.730181][ T5833] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 127.730373][ T5830] overlayfs: upper fs does not support tmpfile. [ 127.738861][ T5833] overlayfs: failed to resolve './file0': -2 [pid 5831] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5834] mkdir("./file1", 000 [pid 5833] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5834] <... mkdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5835, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- [pid 5834] mkdir("./bus", 000 [pid 5073] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5834] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5834] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, [pid 5833] creat("./file0/file0", 0202 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5830] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] getdents64(3, [pid 5833] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5830] creat("./file0/file0", 0202 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5833] exit_group(0 [pid 5830] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 3 [pid 5073] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./62/binderfs" [pid 5833] <... exit_group resumed>) = ? [pid 5830] exit_group(0 [pid 5073] <... unlink resumed>) = 0 [pid 5072] fstat(3, [pid 5073] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5833] +++ exited with 0 +++ [pid 5830] <... exit_group resumed>) = ? [pid 5072] getdents64(3, [pid 5830] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5830, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5833, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 127.750633][ T5831] overlayfs: upper fs needs to support d_type. [ 127.751265][ T5830] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 127.761199][ T5831] overlayfs: upper fs does not support tmpfile. [ 127.766823][ T5830] overlayfs: failed to resolve './file0': -2 [ 127.770666][ T5834] overlayfs: upper fs needs to support d_type. [ 127.786195][ T5834] overlayfs: upper fs does not support tmpfile. [ 127.797544][ T5831] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] unlink("./62/binderfs" [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5070] <... unlink resumed>) = 0 [pid 5070] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./63/binderfs", [pid 5069] <... restart_syscall resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./63/binderfs" [pid 5834] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5831] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... unlink resumed>) = 0 [pid 5069] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./62/binderfs") = 0 [ 127.820014][ T5834] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 127.823889][ T5831] overlayfs: failed to resolve './file0': -2 [ 127.829198][ T5834] overlayfs: failed to resolve './file0': -2 [pid 5069] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5834] creat("./file0/file0", 0202 [pid 5831] creat("./file0/file0", 0202 [pid 5834] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5831] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5834] exit_group(0 [pid 5831] exit_group(0 [pid 5834] <... exit_group resumed>) = ? [pid 5831] <... exit_group resumed>) = ? [pid 5834] +++ exited with 0 +++ [pid 5831] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5831, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5834, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5071] umount2("./61", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./61", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5071] fstat(3, [pid 5068] fstat(3, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5068] getdents64(3, [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./61/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./61/binderfs", [pid 5068] lstat("./62/binderfs", [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./61/binderfs" [pid 5068] unlink("./62/binderfs" [pid 5071] <... unlink resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5071] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./63/file0" [pid 5069] <... umount2 resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./63" [pid 5069] lstat("./62/file0", [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] mkdir("./64", 0777 [pid 5069] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] lstat("./62/file0", [pid 5073] lstat("./62/file0", [pid 5072] close(3 [pid 5069] fstat(4, [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5842 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] rmdir("./62/file0" [pid 5070] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5842 attached [pid 5073] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5842] chdir("./64" [pid 5073] fstat(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5073] getdents64(4, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] close(3 [pid 5842] <... chdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] getdents64(4, [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 5842] <... prctl resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5069] rmdir("./62" [pid 5073] close(4 [pid 5070] <... close resumed>) = 0 [pid 5842] setpgid(0, 0 [pid 5073] <... close resumed>) = 0 [pid 5070] rmdir("./62/file0" [pid 5069] <... rmdir resumed>) = 0 [pid 5842] <... setpgid resumed>) = 0 [pid 5073] rmdir("./62/file0" [pid 5070] <... rmdir resumed>) = 0 [pid 5069] mkdir("./63", 0777 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5842] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5842] write(3, "1000", 4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5842] <... write resumed>) = 4 [pid 5073] close(3 [pid 5070] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5842] close(3 [pid 5073] <... close resumed>) = 0 [pid 5070] rmdir("./62" [pid 5842] <... close resumed>) = 0 [pid 5073] rmdir("./62" [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5842] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... rmdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5842] <... symlink resumed>) = 0 [pid 5073] mkdir("./63", 0777 [pid 5070] mkdir("./63", 0777 [pid 5069] close(3 [pid 5842] memfd_create("syzkaller", 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5842] <... memfd_create resumed>) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5843 [pid 5842] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5070] close(3 [pid 5073] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached [pid 5843] chdir("./63") = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5844 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5845 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 5844 attached [pid 5843] close(3) = 0 ./strace-static-x86_64: Process 5845 attached [pid 5844] chdir("./63" [pid 5843] symlink("/dev/binderfs", "./binderfs" [pid 5845] chdir("./63" [pid 5844] <... chdir resumed>) = 0 [pid 5845] <... chdir resumed>) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5843] <... symlink resumed>) = 0 [pid 5845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5844] <... prctl resumed>) = 0 [pid 5845] <... prctl resumed>) = 0 [pid 5844] setpgid(0, 0 [pid 5843] memfd_create("syzkaller", 0 [pid 5845] setpgid(0, 0 [pid 5844] <... setpgid resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5845] <... setpgid resumed>) = 0 [pid 5843] <... memfd_create resumed>) = 3 [pid 5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5845] <... openat resumed>) = 3 [pid 5844] <... openat resumed>) = 3 [pid 5843] <... mmap resumed>) = 0x7f7f7af80000 [pid 5845] write(3, "1000", 4 [pid 5844] write(3, "1000", 4 [pid 5845] <... write resumed>) = 4 [pid 5071] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5845] close(3) = 0 [pid 5844] <... write resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5845] symlink("/dev/binderfs", "./binderfs" [pid 5844] close(3 [pid 5845] <... symlink resumed>) = 0 [pid 5844] <... close resumed>) = 0 [pid 5071] lstat("./61/file0", [pid 5845] memfd_create("syzkaller", 0 [pid 5844] symlink("/dev/binderfs", "./binderfs" [pid 5845] <... memfd_create resumed>) = 3 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5844] <... symlink resumed>) = 0 [pid 5845] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] umount2("./61/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5844] memfd_create("syzkaller", 0 [pid 5842] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = 0 [pid 5844] <... memfd_create resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./61/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5844] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5844] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] fstat(4, [pid 5068] lstat("./62/file0", [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./61/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5068] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] rmdir("./61" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] mkdir("./62", 0777) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] fstat(4, [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] getdents64(4, [pid 5071] close(3) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5846 ./strace-static-x86_64: Process 5846 attached [pid 5846] chdir("./62") = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./62/file0") = 0 [pid 5068] getdents64(3, [pid 5846] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3 [pid 5846] <... prctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5846] setpgid(0, 0 [pid 5068] rmdir("./62" [pid 5846] <... setpgid resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... rmdir resumed>) = 0 [pid 5846] <... openat resumed>) = 3 [pid 5068] mkdir("./63", 0777 [pid 5846] write(3, "1000", 4) = 4 [pid 5068] <... mkdir resumed>) = 0 [pid 5846] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5846] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5846] symlink("/dev/binderfs", "./binderfs" [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5846] <... symlink resumed>) = 0 [pid 5846] memfd_create("syzkaller", 0) = 3 [pid 5846] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5847 [pid 5845] 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"..., 4194304 [pid 5843] 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"..., 4194304./strace-static-x86_64: Process 5847 attached [pid 5847] chdir("./63") = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5844] 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"..., 4194304 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5847] memfd_create("syzkaller", 0) = 3 [pid 5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5846] 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"..., 4194304 [pid 5842] <... write resumed>) = 4194304 [pid 5842] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5842] close(3) = 0 [pid 5842] mkdir("./file0", 0777) = 0 [pid 5842] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5847] 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"..., 4194304 [pid 5844] <... write resumed>) = 4194304 [ 128.266359][ T5842] loop4: detected capacity change from 0 to 8192 [ 128.287517][ T5842] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5844] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5844] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5844] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5844] close(3 [pid 5845] <... write resumed>) = 4194304 [pid 5844] <... close resumed>) = 0 [pid 5845] munmap(0x7f7f7af80000, 4194304 [pid 5844] mkdir("./file0", 0777 [pid 5843] <... write resumed>) = 4194304 [pid 5845] <... munmap resumed>) = 0 [pid 5844] <... mkdir resumed>) = 0 [pid 5843] munmap(0x7f7f7af80000, 4194304 [pid 5845] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5844] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5845] <... openat resumed>) = 4 [pid 5843] <... munmap resumed>) = 0 [pid 5845] ioctl(4, LOOP_SET_FD, 3 [pid 5843] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 128.309713][ T5842] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 128.327614][ T5844] loop5: detected capacity change from 0 to 8192 [ 128.350696][ T5845] loop2: detected capacity change from 0 to 8192 [ 128.355710][ T5842] REISERFS (device loop4): using ordered data mode [pid 5846] <... write resumed>) = 4194304 [pid 5843] ioctl(4, LOOP_SET_FD, 3 [pid 5845] <... ioctl resumed>) = 0 [pid 5845] close(3 [pid 5843] <... ioctl resumed>) = 0 [pid 5845] <... close resumed>) = 0 [pid 5845] mkdir("./file0", 0777 [pid 5846] munmap(0x7f7f7af80000, 4194304 [pid 5843] close(3 [pid 5845] <... mkdir resumed>) = 0 [pid 5845] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5843] <... close resumed>) = 0 [pid 5846] <... munmap resumed>) = 0 [pid 5846] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 128.364314][ T5844] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.378782][ T5843] loop1: detected capacity change from 0 to 8192 [ 128.379012][ T5842] reiserfs: using flush barriers [ 128.393386][ T5844] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 128.402643][ T5844] REISERFS (device loop5): using ordered data mode [ 128.409255][ T5844] reiserfs: using flush barriers [pid 5846] ioctl(4, LOOP_SET_FD, 3 [pid 5847] <... write resumed>) = 4194304 [pid 5843] mkdir("./file0", 0777 [pid 5847] munmap(0x7f7f7af80000, 4194304 [pid 5843] <... mkdir resumed>) = 0 [pid 5847] <... munmap resumed>) = 0 [pid 5843] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5847] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 128.415519][ T5846] loop3: detected capacity change from 0 to 8192 [ 128.422070][ T5844] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.422107][ T5842] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.444622][ T5847] loop0: detected capacity change from 0 to 8192 [pid 5847] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5847] close(3) = 0 [pid 5847] mkdir("./file0", 0777) = 0 [pid 5847] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5846] <... ioctl resumed>) = 0 [pid 5846] close(3) = 0 [pid 5846] mkdir("./file0", 0777) = 0 [ 128.455813][ T5845] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.465552][ T5842] REISERFS (device loop4): checking transaction log (loop4) [ 128.474986][ T5844] REISERFS (device loop5): checking transaction log (loop5) [ 128.481635][ T5845] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 128.498296][ T5847] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.499463][ T5844] REISERFS (device loop5): Using r5 hash to sort names [ 128.511688][ T5846] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.518507][ T5844] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 128.531298][ T5843] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 128.543919][ T5844] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5846] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5844] <... mount resumed>) = 0 [pid 5844] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 128.556704][ T5842] REISERFS (device loop4): Using r5 hash to sort names [ 128.566162][ T5845] REISERFS (device loop2): using ordered data mode [ 128.573076][ T5847] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 128.579902][ T5845] reiserfs: using flush barriers [ 128.588831][ T5842] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 128.595123][ T5846] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5844] chdir("./file0") = 0 [ 128.615341][ T5843] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 128.615828][ T5845] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.625071][ T5847] REISERFS (device loop0): using ordered data mode [ 128.641346][ T5846] REISERFS (device loop3): using ordered data mode [ 128.647467][ T5842] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5844] ioctl(4, LOOP_CLR_FD) = 0 [pid 5844] close(4 [pid 5842] <... mount resumed>) = 0 [pid 5844] <... close resumed>) = 0 [ 128.654738][ T5845] REISERFS (device loop2): checking transaction log (loop2) [ 128.663225][ T5843] REISERFS (device loop1): using ordered data mode [ 128.670993][ T5847] reiserfs: using flush barriers [ 128.677732][ T5845] REISERFS (device loop2): Using r5 hash to sort names [ 128.683706][ T5843] reiserfs: using flush barriers [ 128.688927][ T5847] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.695367][ T5846] reiserfs: using flush barriers [pid 5842] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5844] mkdir("./file1", 000 [pid 5842] <... openat resumed>) = 3 [pid 5844] <... mkdir resumed>) = 0 [pid 5842] chdir("./file0" [pid 5844] mkdir("./bus", 000 [pid 5842] <... chdir resumed>) = 0 [pid 5844] <... mkdir resumed>) = 0 [pid 5842] ioctl(4, LOOP_CLR_FD [pid 5844] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5842] <... ioctl resumed>) = 0 [pid 5842] close(4) = 0 [ 128.714752][ T5843] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.735723][ T5844] overlayfs: upper fs needs to support d_type. [ 128.741058][ T5845] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 128.742925][ T5844] overlayfs: upper fs does not support tmpfile. [pid 5842] mkdir("./file1", 000) = 0 [pid 5842] mkdir("./bus", 000) = 0 [ 128.761284][ T5846] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 128.764716][ T5843] REISERFS (device loop1): checking transaction log (loop1) [ 128.778592][ T5844] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 128.796335][ T5847] REISERFS (device loop0): checking transaction log (loop0) [ 128.797886][ T5842] overlayfs: upper fs needs to support d_type. [ 128.803948][ T5845] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5842] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5845] <... mount resumed>) = 0 [pid 5844] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5844] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5844] exit_group(0) = ? [pid 5844] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5844, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [ 128.811018][ T5842] overlayfs: upper fs does not support tmpfile. [ 128.820072][ T5846] REISERFS (device loop3): checking transaction log (loop3) [ 128.829885][ T5844] overlayfs: failed to resolve './file0': -2 [ 128.834609][ T5843] REISERFS (device loop1): Using r5 hash to sort names [ 128.841155][ T5842] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 128.845791][ T5847] REISERFS (device loop0): Using r5 hash to sort names [ 128.860054][ T5842] overlayfs: failed to resolve './file0': -2 [pid 5845] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5845] chdir("./file0" [pid 5842] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5842] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ [ 128.860790][ T5843] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 128.867580][ T5846] REISERFS (device loop3): Using r5 hash to sort names [ 128.879206][ T5847] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 128.888331][ T5846] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5845] <... chdir resumed>) = 0 [pid 5846] <... mount resumed>) = 0 [pid 5846] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5846] chdir("./file0") = 0 [pid 5845] ioctl(4, LOOP_CLR_FD) = 0 [pid 5845] close(4) = 0 [pid 5845] mkdir("./file1", 000) = 0 [pid 5845] mkdir("./bus", 000) = 0 [pid 5845] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5073] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5847] <... mount resumed>) = 0 [pid 5846] ioctl(4, LOOP_CLR_FD [pid 5843] <... mount resumed>) = 0 [pid 5073] fstat(3, [pid 5072] fstat(3, [pid 5846] <... ioctl resumed>) = 0 [pid 5843] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5846] close(4 [pid 5843] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 5072] getdents64(3, [pid 5847] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5846] <... close resumed>) = 0 [pid 5847] <... openat resumed>) = 3 [pid 5847] chdir("./file0") = 0 [pid 5847] ioctl(4, LOOP_CLR_FD) = 0 [pid 5847] close(4) = 0 [pid 5847] mkdir("./file1", 000) = 0 [pid 5847] mkdir("./bus", 000) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5847] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5846] mkdir("./file1", 000 [pid 5843] chdir("./file0" [pid 5073] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 128.898539][ T5843] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 128.917321][ T5846] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 128.920677][ T5847] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 128.939916][ T5845] overlayfs: upper fs needs to support d_type. [ 128.950039][ T5845] overlayfs: upper fs does not support tmpfile. [pid 5846] <... mkdir resumed>) = 0 [pid 5843] <... chdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5846] mkdir("./bus", 000 [pid 5843] ioctl(4, LOOP_CLR_FD [pid 5073] lstat("./63/binderfs", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5846] <... mkdir resumed>) = 0 [pid 5843] <... ioctl resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] lstat("./64/binderfs", [pid 5846] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5845] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5843] close(4 [pid 5073] unlink("./63/binderfs" [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 128.976692][ T5847] overlayfs: upper fs needs to support d_type. [ 128.992140][ T5845] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 129.001432][ T5845] overlayfs: failed to resolve './file0': -2 [ 129.004358][ T5847] overlayfs: upper fs does not support tmpfile. [ 129.016208][ T5846] overlayfs: upper fs needs to support d_type. [pid 5845] creat("./file0/file0", 0202 [pid 5843] <... close resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5072] unlink("./64/binderfs" [pid 5847] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5845] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5843] mkdir("./file1", 000 [pid 5073] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 5847] creat("./file0/file0", 0202 [pid 5846] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5845] exit_group(0 [pid 5843] <... mkdir resumed>) = 0 [pid 5072] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5847] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5847] exit_group(0) = ? [pid 5845] <... exit_group resumed>) = ? [pid 5843] mkdir("./bus", 000 [pid 5845] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5845, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5847] +++ exited with 0 +++ [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5843] <... mkdir resumed>) = 0 [pid 5843] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5847, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5070] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 129.022412][ T5846] overlayfs: upper fs does not support tmpfile. [ 129.027949][ T5847] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 129.037210][ T5847] overlayfs: failed to resolve './file0': -2 [ 129.045010][ T5846] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 129.053287][ T5846] overlayfs: failed to resolve './file0': -2 [pid 5070] unlink("./63/binderfs") = 0 [pid 5070] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5846] creat("./file0/file0", 0202 [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5846] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] getdents64(3, [pid 5846] exit_group(0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5846] <... exit_group resumed>) = ? [pid 5068] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./63/binderfs", [pid 5846] +++ exited with 0 +++ [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5846, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5068] unlink("./63/binderfs") = 0 [pid 5071] umount2("./62", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./62", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./62/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./62/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./62/binderfs") = 0 [ 129.073187][ T5843] overlayfs: upper fs needs to support d_type. [ 129.091420][ T5843] overlayfs: upper fs does not support tmpfile. [ 129.110125][ T5843] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5071] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5843] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5843] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5843] exit_group(0) = ? [pid 5843] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5843, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=22 /* 0.22 s */} --- [pid 5069] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./63/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./63/binderfs") = 0 [pid 5069] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./64/file0", [pid 5070] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 129.194381][ T5843] overlayfs: failed to resolve './file0': -2 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./63/file0", [pid 5072] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./63/file0", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] getdents64(4, [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... openat resumed>) = 4 [pid 5073] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(4, [pid 5070] fstat(4, [pid 5068] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(4 [pid 5070] getdents64(4, [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] rmdir("./64/file0" [pid 5073] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, [pid 5071] lstat("./62/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] umount2("./62/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5072] getdents64(3, [pid 5070] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "./62/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] rmdir("./63/file0" [pid 5073] fstat(4, [pid 5071] <... openat resumed>) = 4 [pid 5068] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(3 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 5073] getdents64(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] lstat("./63/file0", [pid 5071] getdents64(4, [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5068] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./62/file0" [pid 5068] <... openat resumed>) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5068] fstat(4, [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] rmdir("./64" [pid 5071] close(3 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./62" [pid 5068] getdents64(4, [pid 5072] <... rmdir resumed>) = 0 [pid 5073] getdents64(4, [pid 5071] <... rmdir resumed>) = 0 [pid 5070] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] mkdir("./63", 0777 [pid 5068] getdents64(4, [pid 5071] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] close(4 [pid 5071] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./63/file0" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5068] getdents64(3, [pid 5071] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] close(3) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5854 [pid 5068] rmdir("./63") = 0 [pid 5068] mkdir("./64", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] mkdir("./65", 0777 [pid 5070] <... close resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5855 [pid 5072] <... mkdir resumed>) = 0 [pid 5070] rmdir("./63" [pid 5073] close(4./strace-static-x86_64: Process 5854 attached [pid 5854] chdir("./63" [pid 5073] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... rmdir resumed>) = 0 [pid 5073] rmdir("./63/file0" [pid 5072] <... openat resumed>) = 3 [pid 5070] mkdir("./64", 0777 [pid 5073] <... rmdir resumed>) = 0 ./strace-static-x86_64: Process 5855 attached [pid 5855] chdir("./64" [pid 5073] getdents64(3, [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] close(3 [pid 5072] close(3 [pid 5073] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5073] rmdir("./63" [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5855] <... chdir resumed>) = 0 [pid 5854] <... chdir resumed>) = 0 [pid 5855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5854] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... rmdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5855] <... prctl resumed>) = 0 [pid 5854] <... prctl resumed>) = 0 [pid 5855] setpgid(0, 0 [pid 5854] setpgid(0, 0 [pid 5855] <... setpgid resumed>) = 0 [pid 5854] <... setpgid resumed>) = 0 [pid 5073] mkdir("./64", 0777 [pid 5070] close(3 [pid 5855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... mkdir resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5856 [pid 5070] <... close resumed>) = 0 [pid 5855] <... openat resumed>) = 3 [pid 5854] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5855] write(3, "1000", 4 [pid 5854] write(3, "1000", 4 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5856 attached [pid 5855] <... write resumed>) = 4 [pid 5854] <... write resumed>) = 4 [pid 5073] <... openat resumed>) = 3 [pid 5856] chdir("./65" [pid 5855] close(3 [pid 5854] close(3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5856] <... chdir resumed>) = 0 [pid 5855] <... close resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5857 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5855] symlink("/dev/binderfs", "./binderfs" [pid 5854] symlink("/dev/binderfs", "./binderfs" [pid 5073] close(3 [pid 5856] <... prctl resumed>) = 0 [pid 5855] <... symlink resumed>) = 0 [pid 5854] <... symlink resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5856] setpgid(0, 0 [pid 5855] memfd_create("syzkaller", 0 [pid 5854] memfd_create("syzkaller", 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5856] <... setpgid resumed>) = 0 [pid 5855] <... memfd_create resumed>) = 3 [pid 5854] <... memfd_create resumed>) = 3 [pid 5856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5855] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5854] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5856] <... openat resumed>) = 3 [pid 5855] <... mmap resumed>) = 0x7f7f7af80000 [pid 5854] <... mmap resumed>) = 0x7f7f7af80000 ./strace-static-x86_64: Process 5857 attached [pid 5856] write(3, "1000", 4) = 4 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5858 [pid 5856] close(3) = 0 [pid 5856] symlink("/dev/binderfs", "./binderfs" [pid 5857] chdir("./64" [pid 5856] <... symlink resumed>) = 0 ./strace-static-x86_64: Process 5858 attached [pid 5857] <... chdir resumed>) = 0 [pid 5856] memfd_create("syzkaller", 0 [pid 5858] chdir("./64" [pid 5857] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5856] <... memfd_create resumed>) = 3 [pid 5858] <... chdir resumed>) = 0 [pid 5857] <... prctl resumed>) = 0 [pid 5856] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5856] <... mmap resumed>) = 0x7f7f7af80000 [pid 5857] setpgid(0, 0 [pid 5858] <... prctl resumed>) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5857] <... setpgid resumed>) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5858] <... openat resumed>) = 3 [pid 5857] <... openat resumed>) = 3 [pid 5858] write(3, "1000", 4 [pid 5857] write(3, "1000", 4 [pid 5858] <... write resumed>) = 4 [pid 5857] <... write resumed>) = 4 [pid 5858] close(3) = 0 [pid 5858] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5857] close(3 [pid 5858] memfd_create("syzkaller", 0) = 3 [pid 5858] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5857] <... close resumed>) = 0 [pid 5857] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5857] memfd_create("syzkaller", 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5857] <... memfd_create resumed>) = 3 [pid 5069] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5857] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5857] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] lstat("./63/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5855] 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"..., 4194304 [pid 5069] <... close resumed>) = 0 [pid 5856] 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"..., 4194304 [pid 5854] 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"..., 4194304 [pid 5069] rmdir("./63/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./63") = 0 [pid 5069] mkdir("./64", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5859 ./strace-static-x86_64: Process 5859 attached [pid 5858] 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"..., 4194304 [pid 5859] chdir("./64") = 0 [pid 5859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5857] 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"..., 4194304 [pid 5859] <... prctl resumed>) = 0 [pid 5859] setpgid(0, 0) = 0 [pid 5859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5859] write(3, "1000", 4) = 4 [pid 5859] close(3) = 0 [pid 5859] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5859] memfd_create("syzkaller", 0) = 3 [pid 5859] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5857] <... write resumed>) = 4194304 [pid 5859] 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"..., 4194304 [pid 5857] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5857] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5857] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5857] close(3) = 0 [pid 5857] mkdir("./file0", 0777) = 0 [pid 5857] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5856] <... write resumed>) = 4194304 [pid 5854] <... write resumed>) = 4194304 [pid 5854] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5854] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5855] <... write resumed>) = 4194304 [pid 5854] <... openat resumed>) = 4 [pid 5855] munmap(0x7f7f7af80000, 4194304 [ 129.557338][ T5857] loop2: detected capacity change from 0 to 8192 [ 129.590391][ T5857] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5854] ioctl(4, LOOP_SET_FD, 3 [pid 5855] <... munmap resumed>) = 0 [pid 5855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5855] ioctl(4, LOOP_SET_FD, 3 [pid 5858] <... write resumed>) = 4194304 [pid 5856] munmap(0x7f7f7af80000, 4194304 [pid 5855] <... ioctl resumed>) = 0 [pid 5856] <... munmap resumed>) = 0 [pid 5858] munmap(0x7f7f7af80000, 4194304 [pid 5856] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5858] <... munmap resumed>) = 0 [pid 5856] <... openat resumed>) = 4 [pid 5855] close(3 [pid 5858] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5856] ioctl(4, LOOP_SET_FD, 3 [pid 5858] <... openat resumed>) = 4 [pid 5855] <... close resumed>) = 0 [pid 5854] <... ioctl resumed>) = 0 [pid 5855] mkdir("./file0", 0777 [pid 5854] close(3 [pid 5855] <... mkdir resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5855] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5854] mkdir("./file0", 0777) = 0 [pid 5854] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5859] <... write resumed>) = 4194304 [pid 5859] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5859] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 129.591411][ T5854] loop3: detected capacity change from 0 to 8192 [ 129.611513][ T5855] loop0: detected capacity change from 0 to 8192 [ 129.618103][ T5857] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 129.628011][ T5857] REISERFS (device loop2): using ordered data mode [ 129.634911][ T5857] reiserfs: using flush barriers [ 129.641035][ T5857] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5859] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5859] close(3) = 0 [pid 5859] mkdir("./file0", 0777) = 0 [pid 5859] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5858] ioctl(4, LOOP_SET_FD, 3 [pid 5856] <... ioctl resumed>) = 0 [ 129.650344][ T5859] loop1: detected capacity change from 0 to 8192 [ 129.658072][ T5856] loop4: detected capacity change from 0 to 8192 [ 129.666143][ T5857] REISERFS (device loop2): checking transaction log (loop2) [ 129.671742][ T5858] loop5: detected capacity change from 0 to 8192 [ 129.679338][ T5859] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.683903][ T5854] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.696585][ T5859] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 129.696663][ T5859] REISERFS (device loop1): using ordered data mode [ 129.709916][ T5855] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.718667][ T5859] reiserfs: using flush barriers [ 129.735291][ T5854] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5856] close(3) = 0 [pid 5856] mkdir("./file0", 0777) = 0 [pid 5856] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5858] <... ioctl resumed>) = 0 [pid 5858] close(3) = 0 [pid 5858] mkdir("./file0", 0777) = 0 [ 129.752465][ T5859] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.754201][ T5854] REISERFS (device loop3): using ordered data mode [ 129.769219][ T5857] REISERFS (device loop2): Using r5 hash to sort names [ 129.775309][ T5855] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 129.783891][ T5857] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 129.791435][ T5855] REISERFS (device loop0): using ordered data mode [ 129.805512][ T5854] reiserfs: using flush barriers [ 129.810773][ T5855] reiserfs: using flush barriers [ 129.820773][ T5858] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.833869][ T5856] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 129.835426][ T5859] REISERFS (device loop1): checking transaction log (loop1) [ 129.848129][ T5856] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 129.854359][ T5858] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 129.865157][ T5855] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.872745][ T5858] REISERFS (device loop5): using ordered data mode [ 129.894573][ T5854] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.895380][ T5858] reiserfs: using flush barriers [ 129.913636][ T5857] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 129.917560][ T5856] REISERFS (device loop4): using ordered data mode [ 129.926221][ T5858] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.931986][ T5856] reiserfs: using flush barriers [pid 5858] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5857] <... mount resumed>) = 0 [pid 5857] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5857] chdir("./file0") = 0 [pid 5857] ioctl(4, LOOP_CLR_FD) = 0 [pid 5857] close(4) = 0 [pid 5857] mkdir("./file1", 000) = 0 [pid 5857] mkdir("./bus", 000) = 0 [ 129.954505][ T5856] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 129.954848][ T5855] REISERFS (device loop0): checking transaction log (loop0) [ 129.971591][ T5856] REISERFS (device loop4): checking transaction log (loop4) [ 129.978827][ T5859] REISERFS (device loop1): Using r5 hash to sort names [ 129.995877][ T5854] REISERFS (device loop3): checking transaction log (loop3) [ 130.005573][ T5857] overlayfs: upper fs needs to support d_type. [ 130.014124][ T5858] REISERFS (device loop5): checking transaction log (loop5) [ 130.016222][ T5859] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 130.022747][ T5857] overlayfs: upper fs does not support tmpfile. [ 130.035131][ T5855] REISERFS (device loop0): Using r5 hash to sort names [ 130.044466][ T5857] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5857] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5859] <... mount resumed>) = 0 [ 130.047941][ T5855] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 130.056447][ T5858] REISERFS (device loop5): Using r5 hash to sort names [ 130.067092][ T5859] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 130.074069][ T5854] REISERFS (device loop3): Using r5 hash to sort names [ 130.089910][ T5856] REISERFS (device loop4): Using r5 hash to sort names [ 130.090336][ T5855] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5859] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5859] chdir("./file0" [pid 5855] <... mount resumed>) = 0 [pid 5859] <... chdir resumed>) = 0 [pid 5855] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5859] ioctl(4, LOOP_CLR_FD [pid 5855] <... openat resumed>) = 3 [pid 5859] <... ioctl resumed>) = 0 [pid 5859] close(4 [pid 5855] chdir("./file0" [pid 5859] <... close resumed>) = 0 [pid 5859] mkdir("./file1", 000 [pid 5855] <... chdir resumed>) = 0 [ 130.098023][ T5856] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 130.125970][ T5857] overlayfs: failed to resolve './file0': -2 [ 130.132897][ T5854] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 130.145860][ T5858] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5859] <... mkdir resumed>) = 0 [pid 5855] ioctl(4, LOOP_CLR_FD [pid 5857] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5857] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5857] exit_group(0) = ? [pid 5857] +++ exited with 0 +++ [pid 5859] mkdir("./bus", 000 [pid 5858] <... mount resumed>) = 0 [pid 5856] <... mount resumed>) = 0 [pid 5855] <... ioctl resumed>) = 0 [pid 5859] <... mkdir resumed>) = 0 [pid 5856] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5855] close(4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5857, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5859] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5856] <... openat resumed>) = 3 [pid 5855] <... close resumed>) = 0 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5858] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5856] chdir("./file0" [pid 5855] mkdir("./file1", 000 [pid 5854] <... mount resumed>) = 0 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5854] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5858] <... openat resumed>) = 3 [pid 5854] chdir("./file0" [pid 5858] chdir("./file0" [pid 5854] <... chdir resumed>) = 0 [pid 5858] <... chdir resumed>) = 0 [pid 5855] <... mkdir resumed>) = 0 [pid 5854] ioctl(4, LOOP_CLR_FD [pid 5858] ioctl(4, LOOP_CLR_FD [pid 5856] <... chdir resumed>) = 0 [pid 5070] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5856] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5856] <... ioctl resumed>) = 0 [pid 5855] mkdir("./bus", 000 [pid 5858] <... ioctl resumed>) = 0 [pid 5854] <... ioctl resumed>) = 0 [pid 5854] close(4 [ 130.147935][ T5856] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 130.164491][ T5858] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 130.172355][ T5854] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 130.184340][ T5859] overlayfs: upper fs needs to support d_type. [ 130.191941][ T5859] overlayfs: upper fs does not support tmpfile. [pid 5858] close(4 [pid 5856] close(4 [pid 5855] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5858] <... close resumed>) = 0 [pid 5854] <... close resumed>) = 0 [pid 5856] <... close resumed>) = 0 [pid 5855] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... openat resumed>) = 3 [pid 5856] mkdir("./file1", 000 [pid 5070] fstat(3, [pid 5856] <... mkdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5859] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5858] mkdir("./file1", 000 [pid 5856] mkdir("./bus", 000 [pid 5854] mkdir("./file1", 000 [pid 5070] getdents64(3, [pid 5859] creat("./file0/file0", 0202 [pid 5858] <... mkdir resumed>) = 0 [pid 5856] <... mkdir resumed>) = 0 [pid 5854] <... mkdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5859] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5858] mkdir("./bus", 000 [pid 5856] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5854] mkdir("./bus", 000 [pid 5070] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5859] exit_group(0 [pid 5858] <... mkdir resumed>) = 0 [pid 5854] <... mkdir resumed>) = 0 [pid 5859] <... exit_group resumed>) = ? [pid 5858] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5854] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5859] +++ exited with 0 +++ [pid 5070] lstat("./64/binderfs", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5859, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 130.203815][ T5859] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 130.212130][ T5859] overlayfs: failed to resolve './file0': -2 [ 130.225608][ T5855] overlayfs: upper fs needs to support d_type. [ 130.231833][ T5855] overlayfs: upper fs does not support tmpfile. [ 130.239289][ T5856] overlayfs: upper fs needs to support d_type. [ 130.246763][ T5856] overlayfs: upper fs does not support tmpfile. [pid 5070] unlink("./64/binderfs" [pid 5069] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [ 130.260602][ T5854] overlayfs: upper fs needs to support d_type. [ 130.268067][ T5858] overlayfs: upper fs needs to support d_type. [ 130.269192][ T5856] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 130.281844][ T5854] overlayfs: upper fs does not support tmpfile. [ 130.283509][ T5855] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 130.288816][ T5858] overlayfs: upper fs does not support tmpfile. [ 130.303272][ T5856] overlayfs: failed to resolve './file0': -2 [pid 5069] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./64/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./64/binderfs") = 0 [pid 5069] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5856] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5856] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5856] exit_group(0) = ? [pid 5856] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5856, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5072] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 130.313912][ T5854] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 130.320013][ T5855] overlayfs: failed to resolve './file0': -2 [ 130.339066][ T5854] overlayfs: failed to resolve './file0': -2 [ 130.347872][ T5858] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] unlink("./65/binderfs" [pid 5855] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5855] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5072] <... unlink resumed>) = 0 [pid 5855] exit_group(0) = ? [pid 5855] +++ exited with 0 +++ [pid 5854] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5854] creat("./file0/file0", 0202 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5855, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5854] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5854] exit_group(0) = ? [pid 5854] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5854, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5858] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./63", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./63", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5858] creat("./file0/file0", 0202 [pid 5071] fstat(3, [pid 5068] fstat(3, [pid 5858] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5068] getdents64(3, [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./63/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./64/file0", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./63/binderfs", [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] lstat("./64/binderfs", [pid 5858] exit_group(0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./63/binderfs" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] unlink("./64/binderfs" [pid 5071] <... unlink resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... unlink resumed>) = 0 [pid 5858] <... exit_group resumed>) = ? [pid 5071] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... openat resumed>) = 4 [pid 5068] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5858] +++ exited with 0 +++ [pid 5070] fstat(4, [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5858, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=20 /* 0.20 s */} --- [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 130.387361][ T5858] overlayfs: failed to resolve './file0': -2 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5073] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./64/file0" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... rmdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(3, [pid 5073] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] fstat(3, [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./64/file0", [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./64/binderfs", [pid 5070] close(3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... close resumed>) = 0 [pid 5073] unlink("./64/binderfs") = 0 [pid 5069] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./64" [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./65", 0777 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] close(4) = 0 [pid 5069] rmdir("./64/file0" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] rmdir("./64") = 0 [pid 5069] mkdir("./65", 0777) = 0 [pid 5070] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5866 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5867 ./strace-static-x86_64: Process 5866 attached [pid 5866] chdir("./65") = 0 ./strace-static-x86_64: Process 5867 attached [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5867] chdir("./65") = 0 [pid 5866] <... openat resumed>) = 3 [pid 5866] write(3, "1000", 4 [pid 5867] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5866] <... write resumed>) = 4 [pid 5867] <... prctl resumed>) = 0 [pid 5867] setpgid(0, 0 [pid 5866] close(3 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5867] <... setpgid resumed>) = 0 [pid 5866] <... close resumed>) = 0 [pid 5071] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5866] symlink("/dev/binderfs", "./binderfs" [pid 5867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] <... symlink resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5867] write(3, "1000", 4 [pid 5866] memfd_create("syzkaller", 0 [pid 5867] <... write resumed>) = 4 [pid 5866] <... memfd_create resumed>) = 3 [pid 5867] close(3 [pid 5866] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5867] <... close resumed>) = 0 [pid 5867] symlink("/dev/binderfs", "./binderfs" [pid 5866] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] lstat("./64/file0", [pid 5867] <... symlink resumed>) = 0 [pid 5867] memfd_create("syzkaller", 0) = 3 [pid 5867] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] lstat("./63/file0", [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5867] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] umount2("./63/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "./63/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] fstat(4, [pid 5071] <... openat resumed>) = 4 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(4, [pid 5068] getdents64(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5068] getdents64(4, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5068] close(4 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5068] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5068] rmdir("./64/file0" [pid 5071] rmdir("./63/file0") = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5068] getdents64(3, [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5068] close(3 [pid 5071] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5072] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] rmdir("./63" [pid 5068] rmdir("./64" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5072] lstat("./65/file0", [pid 5071] mkdir("./64", 0777 [pid 5068] mkdir("./65", 0777 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5072] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5072] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5072] fstat(4, [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5071] close(3 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] rmdir("./65/file0" [pid 5071] <... close resumed>) = 0 [pid 5068] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] getdents64(3, [pid 5068] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... close resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5868 [pid 5072] rmdir("./65") = 0 [pid 5072] mkdir("./66", 0777 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5869 [pid 5072] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5869 attached [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 5868 attached ) = 3 [pid 5869] chdir("./65" [pid 5868] chdir("./64" [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5869] <... chdir resumed>) = 0 [pid 5868] <... chdir resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5869] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] close(3 [pid 5869] <... prctl resumed>) = 0 [pid 5868] <... prctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5869] setpgid(0, 0 [pid 5868] setpgid(0, 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5869] <... setpgid resumed>) = 0 [pid 5868] <... setpgid resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5870 [pid 5869] <... openat resumed>) = 3 [pid 5868] <... openat resumed>) = 3 [pid 5869] write(3, "1000", 4 [pid 5868] write(3, "1000", 4 [pid 5869] <... write resumed>) = 4 [pid 5868] <... write resumed>) = 4 ./strace-static-x86_64: Process 5870 attached [pid 5869] close(3 [pid 5868] close(3 [pid 5870] chdir("./66" [pid 5869] <... close resumed>) = 0 [pid 5868] <... close resumed>) = 0 [pid 5073] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] <... chdir resumed>) = 0 [pid 5869] symlink("/dev/binderfs", "./binderfs" [pid 5868] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5869] <... symlink resumed>) = 0 [pid 5868] <... symlink resumed>) = 0 [pid 5073] lstat("./64/file0", [pid 5870] <... prctl resumed>) = 0 [pid 5869] memfd_create("syzkaller", 0 [pid 5868] memfd_create("syzkaller", 0 [pid 5866] 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"..., 4194304 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5870] setpgid(0, 0 [pid 5869] <... memfd_create resumed>) = 3 [pid 5868] <... memfd_create resumed>) = 3 [pid 5073] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5870] <... setpgid resumed>) = 0 [pid 5869] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5868] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5869] <... mmap resumed>) = 0x7f7f7af80000 [pid 5868] <... mmap resumed>) = 0x7f7f7af80000 [pid 5867] 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"..., 4194304 [pid 5073] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5870] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 4 [pid 5870] write(3, "1000", 4 [pid 5073] fstat(4, [pid 5870] <... write resumed>) = 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5870] close(3 [pid 5073] getdents64(4, [pid 5870] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5870] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(4, [pid 5870] <... symlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5870] memfd_create("syzkaller", 0 [pid 5073] close(4 [pid 5870] <... memfd_create resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5870] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] rmdir("./64/file0" [pid 5870] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./64") = 0 [pid 5073] mkdir("./65", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5871 ./strace-static-x86_64: Process 5871 attached [pid 5871] chdir("./65") = 0 [pid 5871] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5871] setpgid(0, 0) = 0 [pid 5871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5871] write(3, "1000", 4) = 4 [pid 5871] close(3) = 0 [pid 5871] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5871] memfd_create("syzkaller", 0) = 3 [pid 5871] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5869] 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"..., 4194304 [pid 5868] 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"..., 4194304 [pid 5870] 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"..., 4194304 [pid 5867] <... write resumed>) = 4194304 [pid 5866] <... write resumed>) = 4194304 [pid 5866] munmap(0x7f7f7af80000, 4194304 [pid 5867] munmap(0x7f7f7af80000, 4194304 [pid 5866] <... munmap resumed>) = 0 [pid 5867] <... munmap resumed>) = 0 [pid 5866] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5867] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5866] <... openat resumed>) = 4 [pid 5869] <... write resumed>) = 4194304 [pid 5867] <... openat resumed>) = 4 [pid 5866] ioctl(4, LOOP_SET_FD, 3 [pid 5869] munmap(0x7f7f7af80000, 4194304 [pid 5867] ioctl(4, LOOP_SET_FD, 3 [pid 5871] 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"..., 4194304 [pid 5866] <... ioctl resumed>) = 0 [pid 5869] <... munmap resumed>) = 0 [pid 5867] <... ioctl resumed>) = 0 [pid 5869] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5869] ioctl(4, LOOP_SET_FD, 3 [pid 5867] close(3 [pid 5866] close(3 [pid 5867] <... close resumed>) = 0 [pid 5866] <... close resumed>) = 0 [pid 5869] <... ioctl resumed>) = 0 [pid 5867] mkdir("./file0", 0777 [pid 5866] mkdir("./file0", 0777 [pid 5867] <... mkdir resumed>) = 0 [pid 5866] <... mkdir resumed>) = 0 [pid 5867] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5866] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5869] close(3) = 0 [pid 5869] mkdir("./file0", 0777) = 0 [ 130.826504][ T5866] loop2: detected capacity change from 0 to 8192 [ 130.834018][ T5867] loop1: detected capacity change from 0 to 8192 [ 130.842541][ T5869] loop0: detected capacity change from 0 to 8192 [pid 5869] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5868] <... write resumed>) = 4194304 [pid 5870] <... write resumed>) = 4194304 [pid 5870] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5870] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5870] ioctl(4, LOOP_SET_FD, 3 [ 130.870596][ T5869] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.885891][ T5866] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.899078][ T5867] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 130.900303][ T5870] loop4: detected capacity change from 0 to 8192 [pid 5868] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5871] <... write resumed>) = 4194304 [pid 5871] munmap(0x7f7f7af80000, 4194304 [pid 5868] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5871] <... munmap resumed>) = 0 [pid 5871] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5871] ioctl(4, LOOP_SET_FD, 3 [pid 5870] <... ioctl resumed>) = 0 [pid 5868] <... openat resumed>) = 4 [pid 5871] <... ioctl resumed>) = 0 [pid 5871] close(3) = 0 [pid 5871] mkdir("./file0", 0777) = 0 [pid 5871] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5870] close(3 [ 130.912294][ T5866] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 130.930096][ T5867] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 130.940022][ T5869] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 130.944152][ T5871] loop5: detected capacity change from 0 to 8192 [ 130.949991][ T5867] REISERFS (device loop1): using ordered data mode [ 130.960424][ T5866] REISERFS (device loop2): using ordered data mode [pid 5868] ioctl(4, LOOP_SET_FD, 3 [pid 5870] <... close resumed>) = 0 [pid 5870] mkdir("./file0", 0777 [pid 5868] <... ioctl resumed>) = 0 [pid 5870] <... mkdir resumed>) = 0 [ 130.962948][ T5869] REISERFS (device loop0): using ordered data mode [ 130.969272][ T5866] reiserfs: using flush barriers [ 130.975560][ T5868] loop3: detected capacity change from 0 to 8192 [ 130.982105][ T5866] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 130.987139][ T5867] reiserfs: using flush barriers [ 131.008550][ T5871] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5868] close(3 [pid 5870] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5868] <... close resumed>) = 0 [ 131.008913][ T5869] reiserfs: using flush barriers [ 131.022279][ T5871] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 131.029543][ T5866] REISERFS (device loop2): checking transaction log (loop2) [ 131.037178][ T5869] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5868] mkdir("./file0", 0777) = 0 [ 131.043605][ T5867] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 131.059859][ T5871] REISERFS (device loop5): using ordered data mode [ 131.076142][ T5869] REISERFS (device loop0): checking transaction log (loop0) [ 131.086584][ T5866] REISERFS (device loop2): Using r5 hash to sort names [ 131.089721][ T5871] reiserfs: using flush barriers [ 131.097945][ T5869] REISERFS (device loop0): Using r5 hash to sort names [ 131.102979][ T5867] REISERFS (device loop1): checking transaction log (loop1) [ 131.110748][ T5870] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.115070][ T5871] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 131.115398][ T5871] REISERFS (device loop5): checking transaction log (loop5) [ 131.145001][ T5869] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5868] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5869] <... mount resumed>) = 0 [ 131.152062][ T5866] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 131.164217][ T5869] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 131.178504][ T5868] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 131.186238][ T5866] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 131.200257][ T5867] REISERFS (device loop1): Using r5 hash to sort names [pid 5869] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5866] <... mount resumed>) = 0 [pid 5869] <... openat resumed>) = 3 [ 131.214824][ T5870] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 131.214906][ T5870] REISERFS (device loop4): using ordered data mode [ 131.223984][ T5871] REISERFS (device loop5): Using r5 hash to sort names [ 131.230474][ T5870] reiserfs: using flush barriers [ 131.231552][ T5870] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 131.239445][ T5871] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5866] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5869] chdir("./file0" [pid 5866] <... openat resumed>) = 3 [pid 5869] <... chdir resumed>) = 0 [ 131.243400][ T5870] REISERFS (device loop4): checking transaction log (loop4) [ 131.260616][ T5868] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 131.272611][ T5870] REISERFS (device loop4): Using r5 hash to sort names [ 131.280744][ T5867] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 131.288352][ T5870] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5866] chdir("./file0" [pid 5869] ioctl(4, LOOP_CLR_FD [pid 5866] <... chdir resumed>) = 0 [pid 5870] <... mount resumed>) = 0 [pid 5869] <... ioctl resumed>) = 0 [pid 5866] ioctl(4, LOOP_CLR_FD [pid 5871] <... mount resumed>) = 0 [pid 5871] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5871] chdir("./file0") = 0 [pid 5871] ioctl(4, LOOP_CLR_FD) = 0 [ 131.296692][ T5871] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 131.307940][ T5870] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 131.322098][ T5867] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 131.347479][ T5868] REISERFS (device loop3): using ordered data mode [ 131.354728][ T5868] reiserfs: using flush barriers [pid 5871] close(4 [pid 5870] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5869] close(4 [pid 5866] <... ioctl resumed>) = 0 [pid 5870] <... openat resumed>) = 3 [pid 5869] <... close resumed>) = 0 [pid 5866] close(4 [pid 5870] chdir("./file0" [pid 5869] mkdir("./file1", 000 [pid 5866] <... close resumed>) = 0 [pid 5870] <... chdir resumed>) = 0 [pid 5871] <... close resumed>) = 0 [pid 5871] mkdir("./file1", 000 [pid 5870] ioctl(4, LOOP_CLR_FD [pid 5869] <... mkdir resumed>) = 0 [pid 5866] mkdir("./file1", 000 [pid 5870] <... ioctl resumed>) = 0 [pid 5871] <... mkdir resumed>) = 0 [pid 5870] close(4 [pid 5866] <... mkdir resumed>) = 0 [pid 5869] mkdir("./bus", 000 [pid 5870] <... close resumed>) = 0 [pid 5870] mkdir("./file1", 000 [pid 5869] <... mkdir resumed>) = 0 [pid 5866] mkdir("./bus", 000 [pid 5871] mkdir("./bus", 000 [pid 5870] <... mkdir resumed>) = 0 [pid 5869] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5871] <... mkdir resumed>) = 0 [pid 5870] mkdir("./bus", 000 [pid 5866] <... mkdir resumed>) = 0 [pid 5871] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5870] <... mkdir resumed>) = 0 [pid 5866] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5870] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5867] <... mount resumed>) = 0 [ 131.360808][ T5868] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 131.387172][ T5869] overlayfs: upper fs needs to support d_type. [ 131.388752][ T5871] overlayfs: upper fs needs to support d_type. [ 131.399881][ T5869] overlayfs: upper fs does not support tmpfile. [ 131.410424][ T5866] overlayfs: upper fs needs to support d_type. [ 131.416683][ T5871] overlayfs: upper fs does not support tmpfile. [pid 5867] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5867] chdir("./file0") = 0 [pid 5867] ioctl(4, LOOP_CLR_FD) = 0 [pid 5867] close(4) = 0 [pid 5867] mkdir("./file1", 000) = 0 [pid 5867] mkdir("./bus", 000) = 0 [ 131.417266][ T5870] overlayfs: upper fs needs to support d_type. [ 131.428030][ T5871] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 131.433599][ T5866] overlayfs: upper fs does not support tmpfile. [ 131.436882][ T5867] overlayfs: upper fs needs to support d_type. [ 131.442928][ T5866] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 131.450999][ T5867] overlayfs: upper fs does not support tmpfile. [ 131.462575][ T5869] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5867] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5871] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5871] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5871] exit_group(0) = ? [pid 5871] +++ exited with 0 +++ [pid 5867] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5871, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5867] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5867] exit_group(0) = ? [ 131.466947][ T5871] overlayfs: failed to resolve './file0': -2 [ 131.480531][ T5867] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 131.483882][ T5868] REISERFS (device loop3): checking transaction log (loop3) [ 131.492885][ T5867] overlayfs: failed to resolve './file0': -2 [ 131.500909][ T5870] overlayfs: upper fs does not support tmpfile. [ 131.508617][ T5866] overlayfs: failed to resolve './file0': -2 [ 131.508937][ T5869] overlayfs: failed to resolve './file0': -2 [pid 5867] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5867, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5073] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5073] getdents64(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(3, [pid 5073] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./65/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./65/binderfs", [pid 5866] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] unlink("./65/binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5866] creat("./file0/file0", 0202 [pid 5073] <... unlink resumed>) = 0 [pid 5069] unlink("./65/binderfs" [pid 5866] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [pid 5866] exit_group(0 [pid 5069] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5866] <... exit_group resumed>) = ? [pid 5866] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5866, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5070] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./65/binderfs") = 0 [ 131.523707][ T5870] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 131.532567][ T5870] overlayfs: failed to resolve './file0': -2 [ 131.553709][ T5868] REISERFS (device loop3): Using r5 hash to sort names [ 131.560803][ T5868] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5868] <... mount resumed>) = 0 [pid 5868] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5870] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5869] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5868] <... openat resumed>) = 3 [pid 5870] creat("./file0/file0", 0202 [pid 5869] creat("./file0/file0", 0202 [pid 5868] chdir("./file0" [pid 5870] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5869] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5868] <... chdir resumed>) = 0 [pid 5870] exit_group(0 [pid 5869] exit_group(0 [pid 5868] ioctl(4, LOOP_CLR_FD [pid 5870] <... exit_group resumed>) = ? [pid 5869] <... exit_group resumed>) = ? [pid 5868] <... ioctl resumed>) = 0 [pid 5870] +++ exited with 0 +++ [pid 5868] close(4 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5870, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=27 /* 0.27 s */} --- [pid 5869] +++ exited with 0 +++ [pid 5868] <... close resumed>) = 0 [pid 5868] mkdir("./file1", 000 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5869, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=25 /* 0.25 s */} --- [pid 5868] <... mkdir resumed>) = 0 [pid 5072] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5868] mkdir("./bus", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5868] <... mkdir resumed>) = 0 [pid 5072] fstat(3, [pid 5868] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5068] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 131.576319][ T5868] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 3 [pid 5072] lstat("./66/binderfs", [pid 5068] fstat(3, [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] unlink("./66/binderfs" [pid 5068] getdents64(3, [pid 5072] <... unlink resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./65/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./65/binderfs") = 0 [ 131.627184][ T5868] overlayfs: upper fs needs to support d_type. [ 131.656904][ T5868] overlayfs: upper fs does not support tmpfile. [ 131.672052][ T5868] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./66/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./66" [pid 5868] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5868] creat("./file0/file0", 0202 [pid 5070] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5868] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5868] exit_group(0 [pid 5070] lstat("./65/file0", [pid 5069] lstat("./65/file0", [pid 5868] <... exit_group resumed>) = ? [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./67", 0777 [pid 5868] +++ exited with 0 +++ [pid 5070] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5868, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./64", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./64", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 4 [pid 5071] fstat(3, [pid 5070] fstat(4, [pid 5069] fstat(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 131.737349][ T5868] overlayfs: failed to resolve './file0': -2 [pid 5071] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(4, [pid 5069] getdents64(4, [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] umount2("./64/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 3 [pid 5071] lstat("./64/binderfs", [pid 5070] getdents64(4, [pid 5069] getdents64(4, [pid 5073] lstat("./65/file0", [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] unlink("./64/binderfs" [pid 5070] close(4 [pid 5069] close(4 [pid 5068] <... umount2 resumed>) = 0 [pid 5073] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./65/file0" [pid 5069] rmdir("./65/file0" [pid 5068] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5070] getdents64(3, [pid 5069] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] fstat(4, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./65/file0", [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(3 [pid 5069] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] rmdir("./65" [pid 5069] rmdir("./65" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] mkdir("./66", 0777 [pid 5069] mkdir("./66", 0777 [pid 5068] <... openat resumed>) = 4 [pid 5073] close(4 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] fstat(4, [pid 5073] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] rmdir("./65/file0" [pid 5070] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5068] getdents64(4, [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(3, [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] getdents64(4, [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5878 attached [pid 5073] close(3 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5878 [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] close(4 [pid 5073] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... close resumed>) = 0 [pid 5073] rmdir("./65" [pid 5068] rmdir("./65/file0" [pid 5073] <... rmdir resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5879 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] mkdir("./66", 0777 [pid 5068] getdents64(3, ./strace-static-x86_64: Process 5879 attached [pid 5073] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] close(3 [pid 5879] chdir("./66" [pid 5073] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./65" [pid 5879] <... chdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... rmdir resumed>) = 0 [pid 5879] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] close(3 [pid 5068] mkdir("./66", 0777 [pid 5879] <... prctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5880 [pid 5068] <... mkdir resumed>) = 0 [pid 5879] setpgid(0, 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5879] <... setpgid resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5881 [pid 5068] <... openat resumed>) = 3 [pid 5879] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 5880 attached [pid 5879] write(3, "1000", 4 [pid 5068] close(3 [pid 5879] <... write resumed>) = 4 [pid 5878] chdir("./67" [pid 5068] <... close resumed>) = 0 [pid 5879] close(3 [pid 5878] <... chdir resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5880] chdir("./66" [pid 5879] <... close resumed>) = 0 [pid 5878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5879] symlink("/dev/binderfs", "./binderfs" [pid 5878] <... prctl resumed>) = 0 [pid 5880] <... chdir resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5882 [pid 5879] <... symlink resumed>) = 0 [pid 5878] setpgid(0, 0 [pid 5879] memfd_create("syzkaller", 0 [pid 5878] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5881 attached [pid 5880] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5879] <... memfd_create resumed>) = 3 [pid 5878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5881] chdir("./66" [pid 5880] <... prctl resumed>) = 0 [pid 5879] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5878] <... openat resumed>) = 3 [pid 5881] <... chdir resumed>) = 0 [pid 5880] setpgid(0, 0 [pid 5879] <... mmap resumed>) = 0x7f7f7af80000 [pid 5878] write(3, "1000", 4 [pid 5881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5878] <... write resumed>) = 4 [pid 5881] <... prctl resumed>) = 0 [pid 5878] close(3 [pid 5881] setpgid(0, 0 [pid 5878] <... close resumed>) = 0 [pid 5881] <... setpgid resumed>) = 0 [pid 5878] symlink("/dev/binderfs", "./binderfs" [pid 5881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5878] <... symlink resumed>) = 0 [pid 5881] <... openat resumed>) = 3 [pid 5878] memfd_create("syzkaller", 0./strace-static-x86_64: Process 5882 attached [pid 5881] write(3, "1000", 4 [pid 5880] <... setpgid resumed>) = 0 [pid 5878] <... memfd_create resumed>) = 3 [pid 5881] <... write resumed>) = 4 [pid 5880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5878] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5881] close(3 [pid 5880] <... openat resumed>) = 3 [pid 5878] <... mmap resumed>) = 0x7f7f7af80000 [pid 5882] chdir("./66" [pid 5881] <... close resumed>) = 0 [pid 5880] write(3, "1000", 4 [pid 5071] <... umount2 resumed>) = 0 [pid 5882] <... chdir resumed>) = 0 [pid 5881] symlink("/dev/binderfs", "./binderfs" [pid 5880] <... write resumed>) = 4 [pid 5071] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5882] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5881] <... symlink resumed>) = 0 [pid 5880] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5882] <... prctl resumed>) = 0 [pid 5881] memfd_create("syzkaller", 0 [pid 5071] lstat("./64/file0", [pid 5880] <... close resumed>) = 0 [pid 5882] setpgid(0, 0 [pid 5881] <... memfd_create resumed>) = 3 [pid 5881] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5882] <... setpgid resumed>) = 0 [pid 5881] <... mmap resumed>) = 0x7f7f7af80000 [pid 5880] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5879] 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"..., 4194304 [pid 5880] <... symlink resumed>) = 0 [pid 5071] umount2("./64/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5882] <... openat resumed>) = 3 [pid 5882] write(3, "1000", 4 [pid 5880] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5882] <... write resumed>) = 4 [pid 5880] <... memfd_create resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./64/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5882] close(3 [pid 5880] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 4 [pid 5882] <... close resumed>) = 0 [pid 5880] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] fstat(4, [pid 5882] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5882] memfd_create("syzkaller", 0) = 3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5882] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] getdents64(4, [pid 5882] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./64/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5878] 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"..., 4194304 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./64" [pid 5881] 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"..., 4194304 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./65", 0777) = 0 [pid 5882] 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"..., 4194304 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5883 [pid 5879] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 5883 attached [pid 5883] chdir("./65") = 0 [pid 5879] munmap(0x7f7f7af80000, 4194304 [pid 5883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5880] 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"..., 4194304 [pid 5879] <... munmap resumed>) = 0 [pid 5883] <... prctl resumed>) = 0 [pid 5879] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5883] setpgid(0, 0 [pid 5879] <... openat resumed>) = 4 [pid 5883] <... setpgid resumed>) = 0 [pid 5879] ioctl(4, LOOP_SET_FD, 3 [pid 5883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5879] <... ioctl resumed>) = 0 [pid 5883] <... openat resumed>) = 3 [pid 5883] write(3, "1000", 4) = 4 [pid 5883] close(3) = 0 [pid 5879] close(3 [pid 5883] symlink("/dev/binderfs", "./binderfs" [pid 5879] <... close resumed>) = 0 [pid 5883] <... symlink resumed>) = 0 [pid 5879] mkdir("./file0", 0777 [pid 5883] memfd_create("syzkaller", 0) = 3 [pid 5883] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5879] <... mkdir resumed>) = 0 [pid 5883] <... mmap resumed>) = 0x7f7f7af80000 [pid 5879] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5878] <... write resumed>) = 4194304 [ 132.074428][ T5879] loop2: detected capacity change from 0 to 8192 [pid 5878] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5881] <... write resumed>) = 4194304 [pid 5882] <... write resumed>) = 4194304 [pid 5878] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 132.113518][ T5879] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5878] ioctl(4, LOOP_SET_FD, 3 [pid 5880] <... write resumed>) = 4194304 [pid 5881] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5882] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5881] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5882] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5881] <... openat resumed>) = 4 [pid 5882] <... openat resumed>) = 4 [pid 5881] ioctl(4, LOOP_SET_FD, 3 [pid 5883] 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"..., 4194304 [pid 5882] ioctl(4, LOOP_SET_FD, 3 [pid 5878] <... ioctl resumed>) = 0 [pid 5882] <... ioctl resumed>) = 0 [pid 5881] <... ioctl resumed>) = 0 [pid 5880] munmap(0x7f7f7af80000, 4194304 [pid 5878] close(3) = 0 [pid 5878] mkdir("./file0", 0777) = 0 [pid 5878] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5882] close(3) = 0 [pid 5882] mkdir("./file0", 0777) = 0 [ 132.148988][ T5878] loop4: detected capacity change from 0 to 8192 [ 132.149705][ T5879] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 132.161863][ T5881] loop5: detected capacity change from 0 to 8192 [ 132.171639][ T5879] REISERFS (device loop2): using ordered data mode [ 132.178566][ T5879] reiserfs: using flush barriers [ 132.184897][ T5882] loop0: detected capacity change from 0 to 8192 [pid 5882] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5881] close(3 [pid 5880] <... munmap resumed>) = 0 [pid 5881] <... close resumed>) = 0 [pid 5881] mkdir("./file0", 0777 [pid 5880] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5881] <... mkdir resumed>) = 0 [pid 5880] <... openat resumed>) = 4 [pid 5880] ioctl(4, LOOP_SET_FD, 3 [pid 5881] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5880] <... ioctl resumed>) = 0 [pid 5880] close(3) = 0 [ 132.185413][ T5879] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.213403][ T5882] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.213435][ T5880] loop1: detected capacity change from 0 to 8192 [ 132.226392][ T5878] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5880] mkdir("./file0", 0777) = 0 [pid 5880] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5883] <... write resumed>) = 4194304 [pid 5883] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5883] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5883] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5883] close(3) = 0 [pid 5883] mkdir("./file0", 0777) = 0 [ 132.226410][ T5878] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 132.226494][ T5878] REISERFS (device loop4): using ordered data mode [ 132.233739][ T5879] REISERFS (device loop2): checking transaction log (loop2) [ 132.261994][ T5883] loop3: detected capacity change from 0 to 8192 [ 132.267041][ T5882] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 132.271219][ T5878] reiserfs: using flush barriers [ 132.276884][ T5882] REISERFS (device loop0): using ordered data mode [ 132.286220][ T5881] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.290277][ T5880] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.296776][ T5881] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 132.309885][ T5882] reiserfs: using flush barriers [ 132.333441][ T5878] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.336797][ T5883] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 132.353082][ T5878] REISERFS (device loop4): checking transaction log (loop4) [ 132.366523][ T5880] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 132.373875][ T5878] REISERFS (device loop4): Using r5 hash to sort names [pid 5883] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5878] <... mount resumed>) = 0 [ 132.389434][ T5878] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 132.390277][ T5879] REISERFS (device loop2): Using r5 hash to sort names [ 132.402331][ T5878] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 132.411356][ T5882] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.418550][ T5881] REISERFS (device loop5): using ordered data mode [ 132.435510][ T5880] REISERFS (device loop1): using ordered data mode [pid 5878] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 132.441062][ T5881] reiserfs: using flush barriers [ 132.448798][ T5879] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 132.454164][ T5883] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 132.466051][ T5881] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.474385][ T5883] REISERFS (device loop3): using ordered data mode [pid 5878] chdir("./file0") = 0 [pid 5878] ioctl(4, LOOP_CLR_FD) = 0 [pid 5878] close(4) = 0 [ 132.491185][ T5880] reiserfs: using flush barriers [ 132.497069][ T5883] reiserfs: using flush barriers [ 132.509260][ T5880] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 132.527644][ T5883] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5878] mkdir("./file1", 000) = 0 [pid 5878] mkdir("./bus", 000) = 0 [ 132.534514][ T5879] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 132.556513][ T5878] overlayfs: upper fs needs to support d_type. [ 132.562726][ T5878] overlayfs: upper fs does not support tmpfile. [ 132.570060][ T5882] REISERFS (device loop0): checking transaction log (loop0) [ 132.580442][ T5883] REISERFS (device loop3): checking transaction log (loop3) [ 132.580475][ T5878] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5878] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5879] <... mount resumed>) = 0 [pid 5879] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5879] chdir("./file0") = 0 [pid 5879] ioctl(4, LOOP_CLR_FD) = 0 [ 132.588617][ T5881] REISERFS (device loop5): checking transaction log (loop5) [ 132.605766][ T5882] REISERFS (device loop0): Using r5 hash to sort names [ 132.614625][ T5878] overlayfs: failed to resolve './file0': -2 [ 132.614752][ T5882] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 132.634098][ T5880] REISERFS (device loop1): checking transaction log (loop1) [pid 5879] close(4) = 0 [pid 5878] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5878] creat("./file0/file0", 0202 [pid 5879] mkdir("./file1", 000) = 0 [pid 5879] mkdir("./bus", 000) = 0 [pid 5879] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5878] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5878] exit_group(0) = ? [pid 5878] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5878, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5072] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 132.650286][ T5880] REISERFS (device loop1): Using r5 hash to sort names [ 132.650769][ T5883] REISERFS (device loop3): Using r5 hash to sort names [ 132.663591][ T5880] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 132.664717][ T5881] REISERFS (device loop5): Using r5 hash to sort names [ 132.686021][ T5880] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 132.691808][ T5879] overlayfs: upper fs needs to support d_type. [pid 5072] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5880] <... mount resumed>) = 0 [pid 5880] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5880] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5880] chdir("./file0" [pid 5072] getdents64(3, [pid 5880] <... chdir resumed>) = 0 [pid 5880] ioctl(4, LOOP_CLR_FD [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5880] <... ioctl resumed>) = 0 [pid 5072] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5880] close(4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5880] <... close resumed>) = 0 [ 132.714082][ T5879] overlayfs: upper fs does not support tmpfile. [ 132.721002][ T5879] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 132.723527][ T5882] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 132.733693][ T5883] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5882] <... mount resumed>) = 0 [pid 5880] mkdir("./file1", 000 [pid 5072] lstat("./67/binderfs", [pid 5882] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5880] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5882] <... openat resumed>) = 3 [pid 5072] unlink("./67/binderfs" [pid 5880] mkdir("./bus", 000 [pid 5072] <... unlink resumed>) = 0 [pid 5882] chdir("./file0" [pid 5880] <... mkdir resumed>) = 0 [pid 5882] <... chdir resumed>) = 0 [pid 5072] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5880] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5882] ioctl(4, LOOP_CLR_FD) = 0 [pid 5882] close(4) = 0 [pid 5882] mkdir("./file1", 000) = 0 [pid 5882] mkdir("./bus", 000) = 0 [ 132.754238][ T5881] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 132.777158][ T5880] overlayfs: upper fs needs to support d_type. [ 132.788046][ T5879] overlayfs: failed to resolve './file0': -2 [ 132.801558][ T5883] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5882] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5883] <... mount resumed>) = 0 [pid 5883] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5883] chdir("./file0") = 0 [pid 5883] ioctl(4, LOOP_CLR_FD) = 0 [pid 5883] close(4 [pid 5879] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5879] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5879] exit_group(0) = ? [pid 5879] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5879, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [ 132.804949][ T5880] overlayfs: upper fs does not support tmpfile. [ 132.816003][ T5881] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 132.818157][ T5882] overlayfs: upper fs needs to support d_type. [ 132.844002][ T5882] overlayfs: upper fs does not support tmpfile. [ 132.854813][ T5882] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5883] <... close resumed>) = 0 [pid 5883] mkdir("./file1", 000) = 0 [pid 5070] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./66/binderfs", [pid 5883] mkdir("./bus", 000 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./66/binderfs" [pid 5883] <... mkdir resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5881] <... mount resumed>) = 0 [pid 5070] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5883] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 132.864366][ T5880] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 132.872788][ T5880] overlayfs: failed to resolve './file0': -2 [ 132.887370][ T5882] overlayfs: failed to resolve './file0': -2 [pid 5881] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5881] chdir("./file0") = 0 [pid 5881] ioctl(4, LOOP_CLR_FD) = 0 [pid 5881] close(4) = 0 [pid 5881] mkdir("./file1", 000) = 0 [pid 5881] mkdir("./bus", 000) = 0 [pid 5881] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5882] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5882] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5882] exit_group(0) = ? [pid 5882] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5882, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 132.926919][ T5883] overlayfs: upper fs needs to support d_type. [ 132.933149][ T5883] overlayfs: upper fs does not support tmpfile. [ 132.956474][ T5881] overlayfs: upper fs needs to support d_type. [ 132.962749][ T5881] overlayfs: upper fs does not support tmpfile. [pid 5068] unlink("./66/binderfs" [pid 5072] <... umount2 resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 5880] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5880] creat("./file0/file0", 0202 [pid 5068] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5880] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5880] exit_group(0) = ? [pid 5880] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5880, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./67/file0", [pid 5069] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5072] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... openat resumed>) = 4 [pid 5069] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./66/binderfs", [pid 5072] getdents64(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] unlink("./66/binderfs" [pid 5072] getdents64(4, [pid 5069] <... unlink resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5069] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./67/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./67") = 0 [pid 5072] mkdir("./68", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5883] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5883] creat("./file0/file0", 0202 [pid 5072] <... openat resumed>) = 3 [pid 5883] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5883] exit_group(0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5883] <... exit_group resumed>) = ? [pid 5072] close(3 [pid 5883] +++ exited with 0 +++ [pid 5072] <... close resumed>) = 0 [ 132.991036][ T5883] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 133.001286][ T5881] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 133.012828][ T5883] overlayfs: failed to resolve './file0': -2 [ 133.020970][ T5881] overlayfs: failed to resolve './file0': -2 [pid 5881] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5883, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5881] creat("./file0/file0", 0202 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5890 [pid 5881] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./65", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5881] exit_group(0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5881] <... exit_group resumed>) = ? [pid 5071] openat(AT_FDCWD, "./65", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, [pid 5881] +++ exited with 0 +++ ./strace-static-x86_64: Process 5890 attached [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5881, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5890] chdir("./68" [pid 5071] getdents64(3, [pid 5890] <... chdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] umount2("./65/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5890] setpgid(0, 0) = 0 [pid 5890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5890] write(3, "1000", 4) = 4 [pid 5890] close(3) = 0 [pid 5890] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5890] memfd_create("syzkaller", 0) = 3 [pid 5890] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./65/binderfs", [pid 5073] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] unlink("./65/binderfs" [pid 5073] <... openat resumed>) = 3 [pid 5071] <... unlink resumed>) = 0 [pid 5073] fstat(3, [pid 5071] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./66/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./66/binderfs") = 0 [pid 5073] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./66/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./66/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./66") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5070] mkdir("./67", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5068] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./66/file0", [pid 5890] 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"..., 4194304 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5891 [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./66/file0"./strace-static-x86_64: Process 5891 attached ) = 0 [pid 5891] chdir("./67" [pid 5068] getdents64(3, [pid 5891] <... chdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5891] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] close(3 [pid 5891] <... prctl resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5891] setpgid(0, 0 [pid 5068] rmdir("./66" [pid 5891] <... setpgid resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] mkdir("./67", 0777 [pid 5891] <... openat resumed>) = 3 [pid 5068] <... mkdir resumed>) = 0 [pid 5891] write(3, "1000", 4 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5891] <... write resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5891] close(3 [pid 5069] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5891] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5891] symlink("/dev/binderfs", "./binderfs" [pid 5069] lstat("./66/file0", [pid 5068] close(3 [pid 5891] <... symlink resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... close resumed>) = 0 [pid 5891] memfd_create("syzkaller", 0 [pid 5069] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5891] <... memfd_create resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5891] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5892 [pid 5891] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./66/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./66"./strace-static-x86_64: Process 5892 attached ) = 0 [pid 5892] chdir("./67" [pid 5069] mkdir("./67", 0777) = 0 [pid 5892] <... chdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5892] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5893 [pid 5892] <... prctl resumed>) = 0 [pid 5071] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5892] setpgid(0, 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5892] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 5893 attached [pid 5892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./65/file0", [pid 5892] <... openat resumed>) = 3 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5892] write(3, "1000", 4 [pid 5071] umount2("./65/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5893] chdir("./67" [pid 5892] <... write resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5893] <... chdir resumed>) = 0 [pid 5892] close(3 [pid 5073] lstat("./66/file0", [pid 5071] openat(AT_FDCWD, "./65/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5893] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5892] <... close resumed>) = 0 [pid 5073] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5893] <... prctl resumed>) = 0 [pid 5892] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(4, [pid 5893] setpgid(0, 0 [pid 5073] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5892] <... symlink resumed>) = 0 [pid 5893] <... setpgid resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5071] getdents64(4, [pid 5892] memfd_create("syzkaller", 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] fstat(4, [pid 5071] getdents64(4, [pid 5893] <... openat resumed>) = 3 [pid 5892] <... memfd_create resumed>) = 3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5893] write(3, "1000", 4 [pid 5892] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] getdents64(4, [pid 5071] close(4 [pid 5893] <... write resumed>) = 4 [pid 5892] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... close resumed>) = 0 [pid 5893] close(3 [pid 5073] getdents64(4, [pid 5071] rmdir("./65/file0" [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5893] <... close resumed>) = 0 [pid 5893] symlink("/dev/binderfs", "./binderfs" [pid 5073] close(4 [pid 5071] getdents64(3, [pid 5073] <... close resumed>) = 0 [pid 5893] <... symlink resumed>) = 0 [pid 5073] rmdir("./66/file0" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5893] memfd_create("syzkaller", 0 [pid 5073] getdents64(3, [pid 5071] close(3 [pid 5893] <... memfd_create resumed>) = 3 [pid 5891] 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"..., 4194304 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... close resumed>) = 0 [pid 5893] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] close(3 [pid 5071] rmdir("./65" [pid 5893] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... rmdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./66" [pid 5071] mkdir("./66", 0777 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5073] mkdir("./67", 0777 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5073] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5073] <... openat resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] close(3 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... close resumed>) = 0 [pid 5073] close(3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5894 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5895 ./strace-static-x86_64: Process 5894 attached ./strace-static-x86_64: Process 5895 attached [pid 5894] chdir("./66" [pid 5895] chdir("./67") = 0 [pid 5895] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5895] setpgid(0, 0 [pid 5894] <... chdir resumed>) = 0 [pid 5895] <... setpgid resumed>) = 0 [pid 5894] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5890] <... write resumed>) = 4194304 [pid 5895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5894] <... prctl resumed>) = 0 [pid 5895] <... openat resumed>) = 3 [pid 5894] setpgid(0, 0 [pid 5895] write(3, "1000", 4 [pid 5894] <... setpgid resumed>) = 0 [pid 5893] 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"..., 4194304 [pid 5892] 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"..., 4194304 [pid 5895] <... write resumed>) = 4 [pid 5895] close(3) = 0 [pid 5895] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5895] memfd_create("syzkaller", 0 [pid 5894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5895] <... memfd_create resumed>) = 3 [pid 5895] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5894] <... openat resumed>) = 3 [pid 5894] write(3, "1000", 4) = 4 [pid 5890] munmap(0x7f7f7af80000, 4194304 [pid 5894] close(3 [pid 5890] <... munmap resumed>) = 0 [pid 5894] <... close resumed>) = 0 [pid 5890] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5894] symlink("/dev/binderfs", "./binderfs" [pid 5890] <... openat resumed>) = 4 [pid 5890] ioctl(4, LOOP_SET_FD, 3 [pid 5894] <... symlink resumed>) = 0 [pid 5894] memfd_create("syzkaller", 0) = 3 [pid 5894] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5890] <... ioctl resumed>) = 0 [pid 5890] close(3) = 0 [pid 5890] mkdir("./file0", 0777) = 0 [ 133.455931][ T5890] loop4: detected capacity change from 0 to 8192 [pid 5890] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5891] <... write resumed>) = 4194304 [pid 5891] munmap(0x7f7f7af80000, 4194304 [pid 5895] 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"..., 4194304 [pid 5891] <... munmap resumed>) = 0 [pid 5891] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 133.498037][ T5890] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5891] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5894] 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"..., 4194304 [pid 5892] <... write resumed>) = 4194304 [pid 5891] close(3 [pid 5892] munmap(0x7f7f7af80000, 4194304 [pid 5891] <... close resumed>) = 0 [pid 5892] <... munmap resumed>) = 0 [pid 5892] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5891] mkdir("./file0", 0777 [pid 5892] <... openat resumed>) = 4 [pid 5891] <... mkdir resumed>) = 0 [pid 5892] ioctl(4, LOOP_SET_FD, 3 [pid 5891] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5893] <... write resumed>) = 4194304 [pid 5893] munmap(0x7f7f7af80000, 4194304 [pid 5892] <... ioctl resumed>) = 0 [pid 5893] <... munmap resumed>) = 0 [ 133.539081][ T5891] loop2: detected capacity change from 0 to 8192 [ 133.566419][ T5890] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 133.578405][ T5892] loop0: detected capacity change from 0 to 8192 [pid 5892] close(3 [pid 5893] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5892] <... close resumed>) = 0 [pid 5893] <... openat resumed>) = 4 [pid 5892] mkdir("./file0", 0777 [pid 5893] ioctl(4, LOOP_SET_FD, 3 [pid 5892] <... mkdir resumed>) = 0 [ 133.588823][ T5890] REISERFS (device loop4): using ordered data mode [ 133.596271][ T5890] reiserfs: using flush barriers [ 133.604304][ T5891] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.608082][ T5890] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.617518][ T5893] loop1: detected capacity change from 0 to 8192 [pid 5893] <... ioctl resumed>) = 0 [pid 5892] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5893] close(3) = 0 [pid 5893] mkdir("./file0", 0777) = 0 [ 133.640311][ T5890] REISERFS (device loop4): checking transaction log (loop4) [ 133.647849][ T5891] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 133.658353][ T5890] REISERFS (device loop4): Using r5 hash to sort names [ 133.665381][ T5891] REISERFS (device loop2): Using r5 hash to sort names [ 133.672289][ T5891] reiserfs: using flush barriers [ 133.678122][ T5890] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5893] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5894] <... write resumed>) = 4194304 [pid 5895] <... write resumed>) = 4194304 [pid 5895] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5895] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 133.691293][ T5892] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.706691][ T5893] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.719820][ T5891] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5895] ioctl(4, LOOP_SET_FD, 3 [pid 5894] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5894] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 133.726133][ T5895] loop5: detected capacity change from 0 to 8192 [ 133.742368][ T5892] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 133.751710][ T5890] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 133.752369][ T5894] loop3: detected capacity change from 0 to 8192 [ 133.760773][ T5893] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 133.760851][ T5893] REISERFS (device loop1): using ordered data mode [ 133.760860][ T5893] reiserfs: using flush barriers [pid 5894] ioctl(4, LOOP_SET_FD, 3 [pid 5895] <... ioctl resumed>) = 0 [pid 5890] <... mount resumed>) = 0 [pid 5895] close(3 [pid 5890] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5895] <... close resumed>) = 0 [pid 5890] <... openat resumed>) = 3 [pid 5895] mkdir("./file0", 0777 [pid 5890] chdir("./file0" [pid 5895] <... mkdir resumed>) = 0 [pid 5890] <... chdir resumed>) = 0 [pid 5895] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5890] ioctl(4, LOOP_CLR_FD) = 0 [pid 5890] close(4) = 0 [ 133.761989][ T5893] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.781996][ T5892] REISERFS (device loop0): using ordered data mode [ 133.783162][ T5893] REISERFS (device loop1): checking transaction log (loop1) [ 133.792949][ T5891] REISERFS (device loop2): checking transaction log (loop2) [ 133.805189][ T5893] REISERFS (device loop1): Using r5 hash to sort names [pid 5890] mkdir("./file1", 000) = 0 [pid 5894] <... ioctl resumed>) = 0 [pid 5893] <... mount resumed>) = 0 [pid 5890] mkdir("./bus", 000) = 0 [ 133.832946][ T5893] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 133.845823][ T5893] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 133.857264][ T5892] reiserfs: using flush barriers [ 133.863550][ T5892] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 133.879075][ T5890] overlayfs: upper fs needs to support d_type. [pid 5890] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5894] close(3 [pid 5893] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5894] <... close resumed>) = 0 [pid 5893] <... openat resumed>) = 3 [ 133.880050][ T5892] REISERFS (device loop0): checking transaction log (loop0) [ 133.886884][ T5891] REISERFS (device loop2): Using r5 hash to sort names [ 133.900654][ T5892] REISERFS (device loop0): Using r5 hash to sort names [ 133.900871][ T5895] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 133.907785][ T5892] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 133.925741][ T5890] overlayfs: upper fs does not support tmpfile. [pid 5894] mkdir("./file0", 0777 [pid 5893] chdir("./file0" [pid 5894] <... mkdir resumed>) = 0 [pid 5893] <... chdir resumed>) = 0 [pid 5892] <... mount resumed>) = 0 [pid 5894] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5893] ioctl(4, LOOP_CLR_FD [pid 5892] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5893] <... ioctl resumed>) = 0 [pid 5893] close(4 [pid 5892] <... openat resumed>) = 3 [pid 5893] <... close resumed>) = 0 [pid 5892] chdir("./file0" [pid 5893] mkdir("./file1", 000 [pid 5892] <... chdir resumed>) = 0 [pid 5893] <... mkdir resumed>) = 0 [pid 5892] ioctl(4, LOOP_CLR_FD [pid 5893] mkdir("./bus", 000 [pid 5892] <... ioctl resumed>) = 0 [pid 5891] <... mount resumed>) = 0 [pid 5893] <... mkdir resumed>) = 0 [pid 5892] close(4 [ 133.933497][ T5892] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 133.951333][ T5891] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 133.964147][ T5891] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 133.973595][ T5895] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 133.982797][ T5895] REISERFS (device loop5): using ordered data mode [pid 5893] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5892] <... close resumed>) = 0 [pid 5892] mkdir("./file1", 000 [pid 5891] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5892] <... mkdir resumed>) = 0 [pid 5891] <... openat resumed>) = 3 [pid 5892] mkdir("./bus", 000 [pid 5891] chdir("./file0" [pid 5892] <... mkdir resumed>) = 0 [pid 5891] <... chdir resumed>) = 0 [ 133.989395][ T5895] reiserfs: using flush barriers [ 133.993630][ T5893] overlayfs: upper fs needs to support d_type. [ 133.995876][ T5890] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 134.000616][ T5895] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.009138][ T5890] overlayfs: failed to resolve './file0': -2 [ 134.023691][ T5893] overlayfs: upper fs does not support tmpfile. [pid 5892] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5891] ioctl(4, LOOP_CLR_FD) = 0 [pid 5890] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5891] close(4) = 0 [pid 5891] mkdir("./file1", 000) = 0 [pid 5891] mkdir("./bus", 000) = 0 [ 134.037607][ T5894] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.051166][ T5894] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 134.060787][ T5894] REISERFS (device loop3): using ordered data mode [ 134.061241][ T5892] overlayfs: upper fs needs to support d_type. [ 134.067576][ T5894] reiserfs: using flush barriers [ 134.079204][ T5891] overlayfs: upper fs needs to support d_type. [pid 5891] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 134.079950][ T5894] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.101883][ T5894] REISERFS (device loop3): checking transaction log (loop3) [ 134.107035][ T5891] overlayfs: upper fs does not support tmpfile. [ 134.109863][ T5895] REISERFS (device loop5): checking transaction log (loop5) [ 134.116962][ T5894] REISERFS (device loop3): Using r5 hash to sort names [ 134.123553][ T5893] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 134.130742][ T5895] REISERFS (device loop5): Using r5 hash to sort names [pid 5890] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5890] exit_group(0 [pid 5893] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5890] <... exit_group resumed>) = ? [pid 5893] creat("./file0/file0", 0202 [pid 5890] +++ exited with 0 +++ [pid 5893] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5890, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5893] exit_group(0 [pid 5072] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5893] <... exit_group resumed>) = ? [ 134.137889][ T5893] overlayfs: failed to resolve './file0': -2 [ 134.149834][ T5892] overlayfs: upper fs does not support tmpfile. [ 134.156983][ T5892] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 134.165317][ T5892] overlayfs: failed to resolve './file0': -2 [ 134.177854][ T5891] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 134.186450][ T5891] overlayfs: failed to resolve './file0': -2 [pid 5072] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5893] +++ exited with 0 +++ [pid 5072] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./68/binderfs", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5893, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] unlink("./68/binderfs" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5894] <... mount resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5894] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5892] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] unlink("./67/binderfs") = 0 [pid 5069] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5895] <... mount resumed>) = 0 [pid 5894] <... openat resumed>) = 3 [pid 5892] creat("./file0/file0", 0202 [pid 5891] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5895] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5894] chdir("./file0" [pid 5892] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5891] creat("./file0/file0", 0202 [pid 5895] <... openat resumed>) = 3 [pid 5894] <... chdir resumed>) = 0 [pid 5892] exit_group(0 [pid 5891] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5895] chdir("./file0" [pid 5894] ioctl(4, LOOP_CLR_FD [pid 5892] <... exit_group resumed>) = ? [pid 5891] exit_group(0 [pid 5895] <... chdir resumed>) = 0 [pid 5894] <... ioctl resumed>) = 0 [pid 5892] +++ exited with 0 +++ [pid 5891] <... exit_group resumed>) = ? [pid 5895] ioctl(4, LOOP_CLR_FD [pid 5894] close(4 [pid 5891] +++ exited with 0 +++ [pid 5895] <... ioctl resumed>) = 0 [pid 5894] <... close resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5891, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5892, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5895] close(4 [pid 5894] mkdir("./file1", 000 [pid 5895] <... close resumed>) = 0 [pid 5894] <... mkdir resumed>) = 0 [pid 5895] mkdir("./file1", 000 [pid 5894] mkdir("./bus", 000 [pid 5895] <... mkdir resumed>) = 0 [pid 5894] <... mkdir resumed>) = 0 [pid 5070] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5895] mkdir("./bus", 000 [pid 5894] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5895] <... mkdir resumed>) = 0 [ 134.192920][ T5894] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 134.207164][ T5894] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 134.216819][ T5895] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 134.230037][ T5895] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5895] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, [pid 5068] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] fstat(3, [pid 5070] lstat("./67/binderfs", [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] getdents64(3, [pid 5070] unlink("./67/binderfs" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 134.257137][ T5894] overlayfs: upper fs needs to support d_type. [ 134.265096][ T5894] overlayfs: upper fs does not support tmpfile. [ 134.271824][ T5895] overlayfs: upper fs needs to support d_type. [ 134.279350][ T5894] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 134.286749][ T5895] overlayfs: upper fs does not support tmpfile. [ 134.294444][ T5895] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] <... unlink resumed>) = 0 [pid 5068] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./67/binderfs") = 0 [pid 5068] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5895] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5894] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5895] creat("./file0/file0", 0202 [pid 5894] creat("./file0/file0", 0202 [pid 5895] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5894] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5895] exit_group(0 [pid 5894] exit_group(0 [pid 5895] <... exit_group resumed>) = ? [pid 5894] <... exit_group resumed>) = ? [pid 5895] +++ exited with 0 +++ [pid 5894] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5894, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5895, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5073] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [ 134.305090][ T5894] overlayfs: failed to resolve './file0': -2 [ 134.317844][ T5895] overlayfs: failed to resolve './file0': -2 [pid 5071] umount2("./66", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./66", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 5071] <... openat resumed>) = 3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(3, [pid 5073] getdents64(3, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] getdents64(3, [pid 5073] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] lstat("./67/binderfs", [pid 5071] umount2("./66/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] unlink("./67/binderfs" [pid 5071] lstat("./66/binderfs", [pid 5073] <... unlink resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] unlink("./66/binderfs") = 0 [pid 5071] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./68/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./68") = 0 [pid 5072] mkdir("./69", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5902 ./strace-static-x86_64: Process 5902 attached [pid 5902] chdir("./69") = 0 [pid 5902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5902] setpgid(0, 0) = 0 [pid 5902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5902] write(3, "1000", 4) = 4 [pid 5902] close(3) = 0 [pid 5902] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5902] memfd_create("syzkaller", 0) = 3 [pid 5902] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] close(4) = 0 [pid 5069] rmdir("./67/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./67") = 0 [pid 5069] mkdir("./68", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5903 ./strace-static-x86_64: Process 5903 attached [pid 5903] chdir("./68") = 0 [pid 5903] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5903] setpgid(0, 0) = 0 [pid 5903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5903] write(3, "1000", 4) = 4 [pid 5903] close(3) = 0 [pid 5903] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5903] memfd_create("syzkaller", 0) = 3 [pid 5903] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5070] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./67/file0" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 5070] lstat("./67/file0", [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./67") = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] mkdir("./68", 0777 [pid 5070] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5904 [pid 5070] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5904 attached [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5904] chdir("./68") = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5904] setpgid(0, 0) = 0 [pid 5904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5904] <... openat resumed>) = 3 [pid 5070] close(4 [pid 5904] write(3, "1000", 4) = 4 [pid 5070] <... close resumed>) = 0 [pid 5904] close(3) = 0 [pid 5070] rmdir("./67/file0" [pid 5904] symlink("/dev/binderfs", "./binderfs" [pid 5073] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5904] <... symlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5904] memfd_create("syzkaller", 0 [pid 5073] lstat("./67/file0", [pid 5070] <... rmdir resumed>) = 0 [pid 5904] <... memfd_create resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 5904] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5904] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5902] 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"..., 4194304 [pid 5073] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = 0 [pid 5070] close(3 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5071] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./67/file0") = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./67" [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./67") = 0 [pid 5073] mkdir("./68", 0777 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5071] lstat("./66/file0", [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] mkdir("./68", 0777 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5903] 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"..., 4194304 [pid 5073] <... close resumed>) = 0 [pid 5071] umount2("./66/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... mkdir resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5905 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] openat(AT_FDCWD, "./66/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5905 attached [pid 5905] chdir("./68" [pid 5071] <... openat resumed>) = 4 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5905] <... chdir resumed>) = 0 [pid 5071] fstat(4, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(3 [pid 5905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5905] setpgid(0, 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5905] <... setpgid resumed>) = 0 [pid 5071] getdents64(4, ./strace-static-x86_64: Process 5906 attached [pid 5905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5906 [pid 5905] write(3, "1000", 4) = 4 [pid 5905] close(3) = 0 [pid 5905] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5905] memfd_create("syzkaller", 0 [pid 5071] close(4 [pid 5906] chdir("./68" [pid 5905] <... memfd_create resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5905] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5906] <... chdir resumed>) = 0 [pid 5071] rmdir("./66/file0" [pid 5906] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... rmdir resumed>) = 0 [pid 5906] <... prctl resumed>) = 0 [pid 5906] setpgid(0, 0 [pid 5071] getdents64(3, [pid 5906] <... setpgid resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] close(3 [pid 5906] <... openat resumed>) = 3 [pid 5906] write(3, "1000", 4 [pid 5071] <... close resumed>) = 0 [pid 5906] <... write resumed>) = 4 [pid 5071] rmdir("./66" [pid 5906] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5906] <... close resumed>) = 0 [pid 5071] mkdir("./67", 0777 [pid 5906] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5906] memfd_create("syzkaller", 0) = 3 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5906] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 3 [pid 5906] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5904] 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"..., 4194304 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5907 ./strace-static-x86_64: Process 5907 attached [pid 5907] chdir("./67") = 0 [pid 5907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5902] <... write resumed>) = 4194304 [pid 5907] <... prctl resumed>) = 0 [pid 5907] setpgid(0, 0) = 0 [pid 5907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5907] write(3, "1000", 4) = 4 [pid 5907] close(3) = 0 [pid 5907] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5905] 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"..., 4194304 [pid 5902] munmap(0x7f7f7af80000, 4194304 [pid 5907] memfd_create("syzkaller", 0) = 3 [pid 5907] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5902] <... munmap resumed>) = 0 [pid 5907] <... mmap resumed>) = 0x7f7f7af80000 [pid 5902] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5902] ioctl(4, LOOP_SET_FD, 3 [pid 5903] <... write resumed>) = 4194304 [pid 5903] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5903] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5903] ioctl(4, LOOP_SET_FD, 3 [pid 5902] <... ioctl resumed>) = 0 [pid 5902] close(3) = 0 [pid 5902] mkdir("./file0", 0777) = 0 [pid 5902] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5906] 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"..., 4194304 [pid 5903] <... ioctl resumed>) = 0 [pid 5903] close(3) = 0 [ 134.777028][ T5902] loop4: detected capacity change from 0 to 8192 [ 134.799507][ T5903] loop1: detected capacity change from 0 to 8192 [pid 5903] mkdir("./file0", 0777 [pid 5907] 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"..., 4194304 [pid 5903] <... mkdir resumed>) = 0 [pid 5903] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5906] <... write resumed>) = 4194304 [pid 5904] <... write resumed>) = 4194304 [ 134.827132][ T5902] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5904] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5904] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5904] ioctl(4, LOOP_SET_FD, 3 [pid 5906] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5906] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 134.870889][ T5903] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 134.873518][ T5904] loop0: detected capacity change from 0 to 8192 [ 134.891215][ T5902] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 134.896140][ T5906] loop2: detected capacity change from 0 to 8192 [ 134.900549][ T5902] REISERFS (device loop4): using ordered data mode [pid 5906] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5905] <... write resumed>) = 4194304 [pid 5904] <... ioctl resumed>) = 0 [pid 5906] close(3 [pid 5905] munmap(0x7f7f7af80000, 4194304 [pid 5904] close(3 [pid 5906] <... close resumed>) = 0 [pid 5905] <... munmap resumed>) = 0 [pid 5904] <... close resumed>) = 0 [pid 5906] mkdir("./file0", 0777 [pid 5905] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5904] mkdir("./file0", 0777 [pid 5906] <... mkdir resumed>) = 0 [pid 5906] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5905] <... openat resumed>) = 4 [pid 5904] <... mkdir resumed>) = 0 [ 134.908155][ T5903] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 134.913287][ T5902] reiserfs: using flush barriers [ 134.928503][ T5902] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.934667][ T5903] REISERFS (device loop1): using ordered data mode [ 134.951125][ T5903] reiserfs: using flush barriers [ 134.960976][ T5905] loop5: detected capacity change from 0 to 8192 [pid 5905] ioctl(4, LOOP_SET_FD, 3 [pid 5904] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5905] <... ioctl resumed>) = 0 [pid 5905] close(3) = 0 [pid 5905] mkdir("./file0", 0777) = 0 [ 134.961285][ T5903] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 134.968339][ T5902] REISERFS (device loop4): checking transaction log (loop4) [ 134.994134][ T5902] REISERFS (device loop4): Using r5 hash to sort names [ 135.004915][ T5904] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5905] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5907] <... write resumed>) = 4194304 [ 135.006529][ T5903] REISERFS (device loop1): checking transaction log (loop1) [ 135.017914][ T5906] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.017938][ T5906] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 135.018011][ T5906] REISERFS (device loop2): using ordered data mode [ 135.026162][ T5903] REISERFS (device loop1): Using r5 hash to sort names [pid 5907] munmap(0x7f7f7af80000, 4194304) = 0 [ 135.039665][ T5902] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 135.048663][ T5905] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.054335][ T5904] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 135.061535][ T5905] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 135.074398][ T5903] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5907] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5903] <... mount resumed>) = 0 [pid 5907] ioctl(4, LOOP_SET_FD, 3 [pid 5903] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5902] <... mount resumed>) = 0 [pid 5902] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5902] chdir("./file0") = 0 [pid 5902] ioctl(4, LOOP_CLR_FD) = 0 [pid 5907] <... ioctl resumed>) = 0 [pid 5903] <... openat resumed>) = 3 [pid 5907] close(3 [ 135.088244][ T5906] reiserfs: using flush barriers [ 135.095749][ T5903] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 135.107374][ T5902] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 135.118059][ T5905] REISERFS (device loop5): using ordered data mode [ 135.133850][ T5904] REISERFS (device loop0): using ordered data mode [ 135.140723][ T5905] reiserfs: using flush barriers [ 135.158992][ T5907] loop3: detected capacity change from 0 to 8192 [pid 5903] chdir("./file0" [pid 5902] close(4 [pid 5907] <... close resumed>) = 0 [pid 5903] <... chdir resumed>) = 0 [pid 5907] mkdir("./file0", 0777 [ 135.167302][ T5905] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 135.185907][ T5906] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 135.186223][ T5904] reiserfs: using flush barriers [pid 5903] ioctl(4, LOOP_CLR_FD [pid 5907] <... mkdir resumed>) = 0 [pid 5903] <... ioctl resumed>) = 0 [pid 5902] <... close resumed>) = 0 [pid 5907] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5903] close(4) = 0 [pid 5903] mkdir("./file1", 000) = 0 [pid 5903] mkdir("./bus", 000) = 0 [pid 5903] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5902] mkdir("./file1", 000) = 0 [ 135.208329][ T5904] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 135.226253][ T5903] overlayfs: upper fs needs to support d_type. [ 135.227160][ T5904] REISERFS (device loop0): checking transaction log (loop0) [ 135.232452][ T5903] overlayfs: upper fs does not support tmpfile. [ 135.240776][ T5904] REISERFS (device loop0): Using r5 hash to sort names [ 135.250689][ T5905] REISERFS (device loop5): checking transaction log (loop5) [ 135.254301][ T5904] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5902] mkdir("./bus", 000) = 0 [pid 5904] <... mount resumed>) = 0 [pid 5902] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5904] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5903] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 135.261455][ T5906] REISERFS (device loop2): checking transaction log (loop2) [ 135.274528][ T5904] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 135.281176][ T5907] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 135.290981][ T5903] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 135.307617][ T5902] overlayfs: upper fs needs to support d_type. [ 135.311597][ T5903] overlayfs: failed to resolve './file0': -2 [pid 5904] chdir("./file0" [pid 5903] creat("./file0/file0", 0202 [pid 5904] <... chdir resumed>) = 0 [pid 5904] ioctl(4, LOOP_CLR_FD) = 0 [pid 5904] close(4) = 0 [pid 5903] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5904] mkdir("./file1", 000) = 0 [pid 5904] mkdir("./bus", 000) = 0 [pid 5903] exit_group(0 [ 135.322572][ T5907] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 135.325456][ T5905] REISERFS (device loop5): Using r5 hash to sort names [ 135.332069][ T5907] REISERFS (device loop3): using ordered data mode [ 135.345471][ T5907] reiserfs: using flush barriers [ 135.351479][ T5902] overlayfs: upper fs does not support tmpfile. [ 135.359005][ T5902] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 135.360982][ T5904] overlayfs: upper fs needs to support d_type. [pid 5904] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5903] <... exit_group resumed>) = ? [pid 5902] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5903] +++ exited with 0 +++ [pid 5902] creat("./file0/file0", 0202 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5903, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [ 135.367646][ T5902] overlayfs: failed to resolve './file0': -2 [ 135.377573][ T5906] REISERFS (device loop2): Using r5 hash to sort names [ 135.388096][ T5905] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 135.391688][ T5907] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5069] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5902] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5902] exit_group(0 [pid 5069] unlink("./68/binderfs" [pid 5902] <... exit_group resumed>) = ? [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5905] <... mount resumed>) = 0 [pid 5902] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5902, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5072] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5905] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5905] <... openat resumed>) = 3 [pid 5072] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5905] chdir("./file0" [pid 5072] lstat("./69/binderfs", [pid 5905] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5905] ioctl(4, LOOP_CLR_FD [pid 5072] unlink("./69/binderfs" [pid 5905] <... ioctl resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5905] close(4 [pid 5072] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5905] <... close resumed>) = 0 [ 135.402622][ T5905] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 135.427201][ T5904] overlayfs: upper fs does not support tmpfile. [ 135.434693][ T5906] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 135.448687][ T5904] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 135.452281][ T5906] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 135.463704][ T5904] overlayfs: failed to resolve './file0': -2 [pid 5905] mkdir("./file1", 000) = 0 [pid 5905] mkdir("./bus", 000) = 0 [pid 5905] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5906] <... mount resumed>) = 0 [pid 5906] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5906] chdir("./file0") = 0 [pid 5906] ioctl(4, LOOP_CLR_FD) = 0 [pid 5906] close(4) = 0 [pid 5906] mkdir("./file1", 000) = 0 [pid 5906] mkdir("./bus", 000) = 0 [ 135.481330][ T5907] REISERFS (device loop3): checking transaction log (loop3) [ 135.494653][ T5905] overlayfs: upper fs needs to support d_type. [ 135.501282][ T5905] overlayfs: upper fs does not support tmpfile. [pid 5906] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5904] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5904] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5904] exit_group(0) = ? [pid 5904] +++ exited with 0 +++ [pid 5069] <... umount2 resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5904, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./68/file0", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(3, [pid 5069] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5905] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 5905] creat("./file0/file0", 0202 [pid 5069] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 135.527576][ T5906] overlayfs: upper fs needs to support d_type. [ 135.537267][ T5905] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 135.552999][ T5907] REISERFS (device loop3): Using r5 hash to sort names [ 135.554895][ T5905] overlayfs: failed to resolve './file0': -2 [ 135.574951][ T5906] overlayfs: upper fs does not support tmpfile. [pid 5068] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./68/binderfs") = 0 [pid 5068] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5905] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... openat resumed>) = 4 [pid 5905] exit_group(0 [pid 5907] <... mount resumed>) = 0 [pid 5905] <... exit_group resumed>) = ? [pid 5069] fstat(4, [pid 5907] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5905] +++ exited with 0 +++ [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5907] <... openat resumed>) = 3 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5905, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5907] chdir("./file0" [pid 5069] getdents64(4, [pid 5907] <... chdir resumed>) = 0 [pid 5907] ioctl(4, LOOP_CLR_FD [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5907] <... ioctl resumed>) = 0 [pid 5073] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5907] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5073] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./68/binderfs", [pid 5907] <... close resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5907] mkdir("./file1", 000 [pid 5073] unlink("./68/binderfs" [pid 5907] <... mkdir resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5069] close(4 [pid 5907] mkdir("./bus", 000 [pid 5073] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5907] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./69/file0", [pid 5907] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] rmdir("./68/file0" [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(3, [pid 5072] <... openat resumed>) = 4 [ 135.604799][ T5907] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 135.619226][ T5907] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 135.629726][ T5906] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 135.648498][ T5906] overlayfs: failed to resolve './file0': -2 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./69/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./69" [pid 5069] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./70", 0777 [pid 5069] <... close resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5069] rmdir("./68" [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] mkdir("./69", 0777 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5914 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5914 attached [pid 5914] chdir("./70") = 0 [pid 5914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5914] setpgid(0, 0) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5906] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] close(3 [pid 5914] <... openat resumed>) = 3 [pid 5914] write(3, "1000", 4 [pid 5906] creat("./file0/file0", 0202 [pid 5069] <... close resumed>) = 0 [pid 5914] <... write resumed>) = 4 [pid 5906] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5914] close(3 [pid 5906] exit_group(0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5914] <... close resumed>) = 0 [pid 5906] <... exit_group resumed>) = ? [pid 5914] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5914] memfd_create("syzkaller", 0 [pid 5906] +++ exited with 0 +++ [pid 5914] <... memfd_create resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5915 [pid 5914] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5906, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5914] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 5915 attached [pid 5915] chdir("./69" [pid 5070] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5915] <... chdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 135.673166][ T5907] overlayfs: upper fs needs to support d_type. [ 135.710321][ T5907] overlayfs: upper fs does not support tmpfile. [pid 5915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5915] <... prctl resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5915] setpgid(0, 0 [pid 5070] fstat(3, [pid 5915] <... setpgid resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] getdents64(3, [pid 5915] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5915] write(3, "1000", 4 [pid 5070] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5915] <... write resumed>) = 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5915] close(3 [pid 5070] lstat("./68/binderfs", [pid 5915] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5915] symlink("/dev/binderfs", "./binderfs" [pid 5070] unlink("./68/binderfs" [pid 5915] <... symlink resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5915] memfd_create("syzkaller", 0 [pid 5070] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5915] <... memfd_create resumed>) = 3 [pid 5915] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [ 135.745865][ T5907] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5073] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./68/file0", [pid 5068] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./68/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./68") = 0 [pid 5068] lstat("./68/file0", [pid 5073] mkdir("./69", 0777) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] close(3 [pid 5068] <... openat resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5068] fstat(4, [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5916 [pid 5068] getdents64(4, [pid 5914] 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"..., 4194304 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4./strace-static-x86_64: Process 5916 attached [pid 5907] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 135.791168][ T5907] overlayfs: failed to resolve './file0': -2 [pid 5068] <... close resumed>) = 0 [pid 5916] chdir("./69" [pid 5907] creat("./file0/file0", 0202 [pid 5916] <... chdir resumed>) = 0 [pid 5907] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] rmdir("./68/file0" [pid 5916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5907] exit_group(0 [pid 5916] <... prctl resumed>) = 0 [pid 5907] <... exit_group resumed>) = ? [pid 5068] <... rmdir resumed>) = 0 [pid 5916] setpgid(0, 0) = 0 [pid 5916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5907] +++ exited with 0 +++ [pid 5068] getdents64(3, [pid 5916] <... openat resumed>) = 3 [pid 5916] write(3, "1000", 4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5907, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5916] <... write resumed>) = 4 [pid 5915] 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"..., 4194304 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5068] close(3 [pid 5916] close(3 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5916] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5916] symlink("/dev/binderfs", "./binderfs" [pid 5068] rmdir("./68" [pid 5916] <... symlink resumed>) = 0 [pid 5071] umount2("./67", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5916] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 5916] <... memfd_create resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./67", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] mkdir("./69", 0777 [pid 5916] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 3 [pid 5916] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] fstat(3, [pid 5068] <... mkdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./67/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5071] lstat("./67/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] unlink("./67/binderfs" [pid 5068] close(3 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5917 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./68/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./68/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./68"./strace-static-x86_64: Process 5917 attached ) = 0 [pid 5070] mkdir("./69", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5917] chdir("./69" [pid 5070] <... openat resumed>) = 3 [pid 5917] <... chdir resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5917] <... prctl resumed>) = 0 [pid 5916] 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"..., 4194304 [pid 5070] close(3 [pid 5917] setpgid(0, 0 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5918 [pid 5917] <... setpgid resumed>) = 0 [pid 5917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5917] write(3, "1000", 4) = 4 [pid 5917] close(3) = 0 [pid 5917] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5915] <... write resumed>) = 4194304 [pid 5917] memfd_create("syzkaller", 0) = 3 [pid 5917] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5918 attached ) = 0x7f7f7af80000 [pid 5918] chdir("./69") = 0 [pid 5918] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5918] setpgid(0, 0 [pid 5914] <... write resumed>) = 4194304 [pid 5918] <... setpgid resumed>) = 0 [pid 5915] munmap(0x7f7f7af80000, 4194304 [pid 5918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5915] <... munmap resumed>) = 0 [pid 5914] munmap(0x7f7f7af80000, 4194304 [pid 5918] <... openat resumed>) = 3 [pid 5918] write(3, "1000", 4 [pid 5915] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5914] <... munmap resumed>) = 0 [pid 5918] <... write resumed>) = 4 [pid 5915] <... openat resumed>) = 4 [pid 5914] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5918] close(3 [pid 5915] ioctl(4, LOOP_SET_FD, 3 [pid 5914] <... openat resumed>) = 4 [pid 5918] <... close resumed>) = 0 [pid 5918] symlink("/dev/binderfs", "./binderfs" [pid 5914] ioctl(4, LOOP_SET_FD, 3 [pid 5918] <... symlink resumed>) = 0 [pid 5918] memfd_create("syzkaller", 0) = 3 [pid 5918] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./67/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./67/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./67/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5915] <... ioctl resumed>) = 0 [pid 5914] <... ioctl resumed>) = 0 [pid 5071] fstat(4, [pid 5915] close(3 [pid 5914] close(3 [pid 5917] 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"..., 4194304 [pid 5915] <... close resumed>) = 0 [pid 5914] <... close resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5915] mkdir("./file0", 0777 [pid 5914] mkdir("./file0", 0777 [pid 5071] getdents64(4, [pid 5915] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5915] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5914] <... mkdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5914] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [ 135.999208][ T5915] loop1: detected capacity change from 0 to 8192 [ 136.007521][ T5914] loop4: detected capacity change from 0 to 8192 [pid 5071] close(4 [pid 5918] 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"..., 4194304 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./67/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./67") = 0 [pid 5071] mkdir("./68", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5921 ./strace-static-x86_64: Process 5921 attached [ 136.056834][ T5915] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.077739][ T5914] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5921] chdir("./68" [pid 5917] <... write resumed>) = 4194304 [pid 5921] <... chdir resumed>) = 0 [pid 5917] munmap(0x7f7f7af80000, 4194304 [pid 5916] <... write resumed>) = 4194304 [pid 5921] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5917] <... munmap resumed>) = 0 [pid 5921] <... prctl resumed>) = 0 [pid 5917] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5921] setpgid(0, 0 [pid 5918] <... write resumed>) = 4194304 [pid 5917] <... openat resumed>) = 4 [pid 5921] <... setpgid resumed>) = 0 [pid 5917] ioctl(4, LOOP_SET_FD, 3 [pid 5921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5918] munmap(0x7f7f7af80000, 4194304 [pid 5916] munmap(0x7f7f7af80000, 4194304 [pid 5921] <... openat resumed>) = 3 [pid 5918] <... munmap resumed>) = 0 [pid 5916] <... munmap resumed>) = 0 [pid 5921] write(3, "1000", 4 [pid 5918] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5916] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5921] <... write resumed>) = 4 [pid 5918] <... openat resumed>) = 4 [pid 5916] <... openat resumed>) = 4 [pid 5921] close(3 [pid 5918] ioctl(4, LOOP_SET_FD, 3 [ 136.114974][ T5914] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 136.130885][ T5915] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 136.135407][ T5917] loop0: detected capacity change from 0 to 8192 [ 136.140613][ T5915] REISERFS (device loop1): using ordered data mode [ 136.150843][ T5918] loop2: detected capacity change from 0 to 8192 [ 136.153522][ T5915] reiserfs: using flush barriers [pid 5916] ioctl(4, LOOP_SET_FD, 3 [pid 5921] <... close resumed>) = 0 [pid 5921] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5921] memfd_create("syzkaller", 0) = 3 [pid 5921] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 136.159763][ T5916] loop5: detected capacity change from 0 to 8192 [ 136.165348][ T5914] REISERFS (device loop4): using ordered data mode [ 136.177177][ T5915] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.177331][ T5914] reiserfs: using flush barriers [ 136.202598][ T5915] REISERFS (device loop1): checking transaction log (loop1) [pid 5918] <... ioctl resumed>) = 0 [pid 5917] <... ioctl resumed>) = 0 [pid 5916] <... ioctl resumed>) = 0 [pid 5918] close(3 [pid 5917] close(3 [pid 5916] close(3 [pid 5918] <... close resumed>) = 0 [pid 5917] <... close resumed>) = 0 [pid 5916] <... close resumed>) = 0 [pid 5921] 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"..., 4194304 [pid 5918] mkdir("./file0", 0777 [pid 5917] mkdir("./file0", 0777 [pid 5916] mkdir("./file0", 0777 [pid 5918] <... mkdir resumed>) = 0 [pid 5917] <... mkdir resumed>) = 0 [pid 5916] <... mkdir resumed>) = 0 [pid 5918] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5917] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 136.210219][ T5914] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.228798][ T5914] REISERFS (device loop4): checking transaction log (loop4) [ 136.229505][ T5915] REISERFS (device loop1): Using r5 hash to sort names [ 136.243787][ T5915] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.257623][ T5914] REISERFS (device loop4): Using r5 hash to sort names [pid 5916] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5921] <... write resumed>) = 4194304 [pid 5921] munmap(0x7f7f7af80000, 4194304 [pid 5915] <... mount resumed>) = 0 [ 136.266497][ T5918] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.279536][ T5916] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.284429][ T5915] REISERFS (device loop1): reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5921] <... munmap resumed>) = 0 [pid 5915] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5921] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5915] <... openat resumed>) = 3 [pid 5915] chdir("./file0" [pid 5921] <... openat resumed>) = 4 [pid 5914] <... mount resumed>) = 0 [pid 5921] ioctl(4, LOOP_SET_FD, 3 [pid 5914] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5915] <... chdir resumed>) = 0 [ 136.293647][ T5917] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.294387][ T5914] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.319924][ T5917] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 136.332056][ T5914] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 136.350155][ T5918] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 136.352159][ T5921] loop3: detected capacity change from 0 to 8192 [pid 5915] ioctl(4, LOOP_CLR_FD) = 0 [pid 5914] <... openat resumed>) = 3 [pid 5915] close(4 [pid 5914] chdir("./file0" [pid 5915] <... close resumed>) = 0 [pid 5915] mkdir("./file1", 000) = 0 [pid 5915] mkdir("./bus", 000 [pid 5914] <... chdir resumed>) = 0 [pid 5915] <... mkdir resumed>) = 0 [pid 5915] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 136.359684][ T5918] REISERFS (device loop2): using ordered data mode [ 136.370608][ T5916] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 136.372892][ T5918] reiserfs: using flush barriers [ 136.388145][ T5918] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.404942][ T5917] REISERFS (device loop0): using ordered data mode [pid 5914] ioctl(4, LOOP_CLR_FD) = 0 [pid 5921] <... ioctl resumed>) = 0 [pid 5921] close(3 [pid 5914] close(4) = 0 [pid 5921] <... close resumed>) = 0 [pid 5921] mkdir("./file0", 0777) = 0 [pid 5914] mkdir("./file1", 000) = 0 [pid 5914] mkdir("./bus", 000 [pid 5921] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5914] <... mkdir resumed>) = 0 [ 136.409296][ T5915] overlayfs: upper fs needs to support d_type. [ 136.411884][ T5917] reiserfs: using flush barriers [ 136.435906][ T5918] REISERFS (device loop2): checking transaction log (loop2) [ 136.440251][ T5915] overlayfs: upper fs does not support tmpfile. [ 136.456240][ T5914] overlayfs: upper fs needs to support d_type. [ 136.456307][ T5916] REISERFS (device loop5): using ordered data mode [ 136.462436][ T5914] overlayfs: upper fs does not support tmpfile. [ 136.462988][ T5914] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 136.472310][ T5915] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 136.475769][ T5921] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 136.489505][ T5915] overlayfs: failed to resolve './file0': -2 [pid 5914] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5915] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5915] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 136.503067][ T5917] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.511407][ T5916] reiserfs: using flush barriers [ 136.532723][ T5916] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 136.545035][ T5918] REISERFS (device loop2): Using r5 hash to sort names [ 136.549586][ T5916] REISERFS (device loop5): checking transaction log (loop5) [pid 5915] exit_group(0) = ? [ 136.565521][ T5921] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 136.567377][ T5914] overlayfs: failed to resolve './file0': -2 [ 136.575654][ T5921] REISERFS (device loop3): using ordered data mode [ 136.582459][ T5918] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.588372][ T5921] reiserfs: using flush barriers [ 136.602437][ T5917] REISERFS (device loop0): checking transaction log (loop0) [pid 5915] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5915, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5918] <... mount resumed>) = 0 [pid 5914] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 136.605387][ T5916] REISERFS (device loop5): Using r5 hash to sort names [ 136.613766][ T5917] REISERFS (device loop0): Using r5 hash to sort names [ 136.621409][ T5916] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.627225][ T5918] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 136.638848][ T5921] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5918] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5916] <... mount resumed>) = 0 [pid 5914] creat("./file0/file0", 0202 [pid 5918] <... openat resumed>) = 3 [pid 5916] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5914] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5918] chdir("./file0" [pid 5917] <... mount resumed>) = 0 [pid 5917] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5917] chdir("./file0") = 0 [pid 5917] ioctl(4, LOOP_CLR_FD) = 0 [ 136.639234][ T5921] REISERFS (device loop3): checking transaction log (loop3) [ 136.649004][ T5916] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 136.665227][ T5917] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.680576][ T5921] REISERFS (device loop3): Using r5 hash to sort names [ 136.694408][ T5917] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5917] close(4 [pid 5918] <... chdir resumed>) = 0 [pid 5916] <... openat resumed>) = 3 [pid 5914] exit_group(0 [pid 5917] <... close resumed>) = 0 [pid 5916] chdir("./file0" [pid 5918] ioctl(4, LOOP_CLR_FD [pid 5916] <... chdir resumed>) = 0 [pid 5918] <... ioctl resumed>) = 0 [pid 5914] <... exit_group resumed>) = ? [pid 5916] ioctl(4, LOOP_CLR_FD [pid 5918] close(4 [pid 5069] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5917] mkdir("./file1", 000) = 0 [pid 5914] +++ exited with 0 +++ [pid 5916] <... ioctl resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5914, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5918] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5916] close(4 [pid 5918] mkdir("./file1", 000 [pid 5069] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5916] <... close resumed>) = 0 [pid 5918] <... mkdir resumed>) = 0 [pid 5916] mkdir("./file1", 000 [pid 5069] <... openat resumed>) = 3 [pid 5917] mkdir("./bus", 000 [pid 5918] mkdir("./bus", 000 [pid 5916] <... mkdir resumed>) = 0 [pid 5069] fstat(3, [pid 5917] <... mkdir resumed>) = 0 [pid 5917] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5918] <... mkdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5921] <... mount resumed>) = 0 [pid 5918] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5916] mkdir("./bus", 000 [pid 5072] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [ 136.709507][ T5921] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 136.730596][ T5921] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 136.741719][ T5917] overlayfs: upper fs needs to support d_type. [ 136.750944][ T5917] overlayfs: upper fs does not support tmpfile. [ 136.751154][ T5918] overlayfs: upper fs needs to support d_type. [pid 5069] getdents64(3, [pid 5921] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5916] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5921] <... openat resumed>) = 3 [pid 5916] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] chdir("./file0" [pid 5072] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... chdir resumed>) = 0 [pid 5072] fstat(3, [pid 5069] lstat("./69/binderfs", [pid 5917] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5917] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5917] exit_group(0) = ? [pid 5917] +++ exited with 0 +++ [pid 5921] ioctl(4, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5917, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 136.763501][ T5917] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 136.769835][ T5916] overlayfs: upper fs needs to support d_type. [ 136.772859][ T5917] overlayfs: failed to resolve './file0': -2 [ 136.777301][ T5916] overlayfs: upper fs does not support tmpfile. [ 136.785264][ T5918] overlayfs: upper fs does not support tmpfile. [ 136.791013][ T5916] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 136.801187][ T5918] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 136.805077][ T5916] overlayfs: failed to resolve './file0': -2 [pid 5921] <... ioctl resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] unlink("./69/binderfs" [pid 5921] close(4 [pid 5918] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5916] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... unlink resumed>) = 0 [pid 5921] <... close resumed>) = 0 [pid 5072] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] mkdir("./file1", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... mkdir resumed>) = 0 [pid 5072] lstat("./70/binderfs", [pid 5068] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5921] mkdir("./bus", 000 [pid 5072] unlink("./70/binderfs" [pid 5068] fstat(3, [pid 5921] <... mkdir resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5921] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./69/binderfs") = 0 [pid 5068] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5916] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 136.812010][ T5918] overlayfs: failed to resolve './file0': -2 [pid 5916] exit_group(0) = ? [pid 5918] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5918] exit_group(0) = ? [pid 5916] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5916, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5918] +++ exited with 0 +++ [pid 5073] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5918, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5073] <... openat resumed>) = 3 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5070] <... restart_syscall resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./69/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] unlink("./69/binderfs" [pid 5070] <... openat resumed>) = 3 [pid 5073] <... unlink resumed>) = 0 [pid 5070] fstat(3, [pid 5073] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = 0 [pid 5070] lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] unlink("./69/binderfs") = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 136.844354][ T5921] overlayfs: upper fs needs to support d_type. [ 136.850921][ T5921] overlayfs: upper fs does not support tmpfile. [pid 5068] lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./69/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./69") = 0 [pid 5068] mkdir("./70", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5926 ./strace-static-x86_64: Process 5926 attached [pid 5926] chdir("./70") = 0 [pid 5926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5926] setpgid(0, 0) = 0 [pid 5926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5926] write(3, "1000", 4) = 4 [pid 5926] close(3 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./69/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5926] <... close resumed>) = 0 [pid 5073] close(3 [pid 5926] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... close resumed>) = 0 [pid 5926] <... symlink resumed>) = 0 [pid 5073] rmdir("./69" [pid 5926] memfd_create("syzkaller", 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5926] <... memfd_create resumed>) = 3 [pid 5073] mkdir("./70", 0777 [pid 5926] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5926] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5927 [ 136.905314][ T5921] overlayfs: upper fs does not support RENAME_WHITEOUT. ./strace-static-x86_64: Process 5927 attached [pid 5927] chdir("./70") = 0 [pid 5927] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5927] setpgid(0, 0) = 0 [pid 5927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5927] write(3, "1000", 4) = 4 [pid 5927] close(3) = 0 [pid 5927] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5927] memfd_create("syzkaller", 0) = 3 [pid 5927] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 136.970838][ T5921] overlayfs: failed to resolve './file0': -2 [pid 5069] <... umount2 resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./69/file0", [pid 5072] lstat("./70/file0", [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5921] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] creat("./file0/file0", 0202 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5921] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 4 [pid 5069] <... openat resumed>) = 4 [pid 5921] exit_group(0 [pid 5072] fstat(4, [pid 5069] fstat(4, [pid 5921] <... exit_group resumed>) = ? [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5921] +++ exited with 0 +++ [pid 5072] getdents64(4, [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5072] getdents64(4, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5921, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5072] close(4 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5069] getdents64(4, [pid 5072] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] rmdir("./70/file0" [pid 5069] close(4 [pid 5071] umount2("./68", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] <... rmdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./68", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5072] getdents64(3, [pid 5071] <... openat resumed>) = 3 [pid 5069] rmdir("./69/file0" [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] fstat(3, [pid 5072] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./68/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./68/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] unlink("./68/binderfs" [pid 5069] getdents64(3, [pid 5072] rmdir("./70" [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] close(3 [pid 5072] mkdir("./71", 0777 [pid 5070] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./69/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5070] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./69" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] getdents64(4, [pid 5926] 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"..., 4194304 [pid 5072] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] mkdir("./70", 0777 [pid 5070] close(4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... close resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] rmdir("./69/file0" [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... rmdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] close(3 [pid 5070] getdents64(3, [pid 5069] <... openat resumed>) = 3 [pid 5072] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./69") = 0 [pid 5070] mkdir("./70", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5928 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5928 attached ) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5929 [pid 5928] chdir("./70") = 0 [pid 5928] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5930 [pid 5928] <... prctl resumed>) = 0 [pid 5927] 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"..., 4194304 [pid 5928] setpgid(0, 0) = 0 [pid 5928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5930 attached ) = 3 [pid 5928] write(3, "1000", 4 [pid 5930] chdir("./70" [pid 5928] <... write resumed>) = 4 ./strace-static-x86_64: Process 5929 attached [pid 5930] <... chdir resumed>) = 0 [pid 5928] close(3 [pid 5930] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5929] chdir("./71" [pid 5928] <... close resumed>) = 0 [pid 5930] <... prctl resumed>) = 0 [pid 5929] <... chdir resumed>) = 0 [pid 5928] symlink("/dev/binderfs", "./binderfs" [pid 5930] setpgid(0, 0 [pid 5929] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5928] <... symlink resumed>) = 0 [pid 5930] <... setpgid resumed>) = 0 [pid 5929] <... prctl resumed>) = 0 [pid 5928] memfd_create("syzkaller", 0 [pid 5930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5929] setpgid(0, 0 [pid 5928] <... memfd_create resumed>) = 3 [pid 5930] <... openat resumed>) = 3 [pid 5929] <... setpgid resumed>) = 0 [pid 5928] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5930] write(3, "1000", 4 [pid 5929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5928] <... mmap resumed>) = 0x7f7f7af80000 [pid 5930] <... write resumed>) = 4 [pid 5929] <... openat resumed>) = 3 [pid 5930] close(3 [pid 5929] write(3, "1000", 4 [pid 5930] <... close resumed>) = 0 [pid 5930] symlink("/dev/binderfs", "./binderfs" [pid 5929] <... write resumed>) = 4 [pid 5930] <... symlink resumed>) = 0 [pid 5929] close(3 [pid 5930] memfd_create("syzkaller", 0 [pid 5929] <... close resumed>) = 0 [pid 5930] <... memfd_create resumed>) = 3 [pid 5929] symlink("/dev/binderfs", "./binderfs" [pid 5930] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5929] <... symlink resumed>) = 0 [pid 5929] memfd_create("syzkaller", 0) = 3 [pid 5929] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./68/file0", [pid 5926] <... write resumed>) = 4194304 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./68/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./68/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 5930] 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"..., 4194304 [pid 5929] 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"..., 4194304 [pid 5928] 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"..., 4194304 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5926] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5926] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5926] ioctl(4, LOOP_SET_FD, 3 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./68/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./68") = 0 [pid 5071] mkdir("./69", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5927] <... write resumed>) = 4194304 [pid 5071] close(3) = 0 [pid 5926] <... ioctl resumed>) = 0 [pid 5926] close(3) = 0 [pid 5926] mkdir("./file0", 0777) = 0 [pid 5927] munmap(0x7f7f7af80000, 4194304 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5927] <... munmap resumed>) = 0 [pid 5926] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5927] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5931 [pid 5927] <... openat resumed>) = 4 [ 137.279700][ T5926] loop0: detected capacity change from 0 to 8192 [pid 5927] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 5931 attached [pid 5931] chdir("./69") = 0 [pid 5931] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5931] setpgid(0, 0) = 0 [pid 5931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5931] write(3, "1000", 4) = 4 [pid 5930] <... write resumed>) = 4194304 [pid 5927] <... ioctl resumed>) = 0 [pid 5931] close(3 [pid 5930] munmap(0x7f7f7af80000, 4194304 [pid 5929] <... write resumed>) = 4194304 [pid 5928] <... write resumed>) = 4194304 [pid 5927] close(3) = 0 [pid 5927] mkdir("./file0", 0777) = 0 [pid 5927] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5928] munmap(0x7f7f7af80000, 4194304 [pid 5931] <... close resumed>) = 0 [pid 5930] <... munmap resumed>) = 0 [pid 5929] munmap(0x7f7f7af80000, 4194304 [pid 5928] <... munmap resumed>) = 0 [pid 5928] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5929] <... munmap resumed>) = 0 [pid 5931] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5930] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5929] openat(AT_FDCWD, "/dev/loop4", O_RDWR [ 137.335423][ T5927] loop5: detected capacity change from 0 to 8192 [ 137.354220][ T5926] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.370718][ T5926] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5928] ioctl(4, LOOP_SET_FD, 3 [pid 5931] memfd_create("syzkaller", 0 [pid 5930] <... openat resumed>) = 4 [pid 5929] <... openat resumed>) = 4 [pid 5931] <... memfd_create resumed>) = 3 [pid 5930] ioctl(4, LOOP_SET_FD, 3 [ 137.383512][ T5926] REISERFS (device loop0): using ordered data mode [ 137.388269][ T5929] loop4: detected capacity change from 0 to 8192 [ 137.390549][ T5926] reiserfs: using flush barriers [ 137.397083][ T5927] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.402507][ T5928] loop2: detected capacity change from 0 to 8192 [pid 5929] ioctl(4, LOOP_SET_FD, 3 [pid 5931] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5928] <... ioctl resumed>) = 0 [pid 5929] <... ioctl resumed>) = 0 [pid 5929] close(3) = 0 [pid 5929] mkdir("./file0", 0777) = 0 [pid 5929] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5931] <... mmap resumed>) = 0x7f7f7af80000 [pid 5928] close(3 [pid 5930] <... ioctl resumed>) = 0 [ 137.414464][ T5926] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.421503][ T5930] loop1: detected capacity change from 0 to 8192 [ 137.444698][ T5926] REISERFS (device loop0): checking transaction log (loop0) [ 137.452995][ T5926] REISERFS (device loop0): Using r5 hash to sort names [ 137.460935][ T5927] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 137.461292][ T5929] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5931] 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"..., 4194304 [pid 5930] close(3 [pid 5928] <... close resumed>) = 0 [pid 5930] <... close resumed>) = 0 [pid 5928] mkdir("./file0", 0777 [pid 5930] mkdir("./file0", 0777 [pid 5928] <... mkdir resumed>) = 0 [pid 5930] <... mkdir resumed>) = 0 [pid 5930] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 137.478097][ T5927] REISERFS (device loop5): using ordered data mode [ 137.485105][ T5926] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 137.504965][ T5929] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 137.505670][ T5927] reiserfs: using flush barriers [ 137.521821][ T5926] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5928] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5926] <... mount resumed>) = 0 [pid 5926] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 137.522001][ T5928] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.531327][ T5929] REISERFS (device loop4): using ordered data mode [ 137.545143][ T5927] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.550771][ T5929] reiserfs: using flush barriers [ 137.573392][ T5930] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5926] chdir("./file0") = 0 [pid 5926] ioctl(4, LOOP_CLR_FD) = 0 [ 137.574518][ T5929] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.603118][ T5930] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 137.613248][ T5930] REISERFS (device loop1): using ordered data mode [ 137.622673][ T5931] loop3: detected capacity change from 0 to 8192 [pid 5926] close(4 [pid 5931] <... write resumed>) = 4194304 [pid 5931] munmap(0x7f7f7af80000, 4194304 [pid 5926] <... close resumed>) = 0 [pid 5931] <... munmap resumed>) = 0 [pid 5931] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5931] ioctl(4, LOOP_SET_FD, 3 [pid 5926] mkdir("./file1", 000 [pid 5931] <... ioctl resumed>) = 0 [pid 5931] close(3) = 0 [pid 5931] mkdir("./file0", 0777 [pid 5926] <... mkdir resumed>) = 0 [pid 5926] mkdir("./bus", 000) = 0 [pid 5926] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5931] <... mkdir resumed>) = 0 [ 137.636452][ T5926] overlayfs: upper fs needs to support d_type. [ 137.637158][ T5928] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 137.642642][ T5926] overlayfs: upper fs does not support tmpfile. [ 137.643174][ T5926] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 137.653739][ T5928] REISERFS (device loop2): using ordered data mode [ 137.667446][ T5930] reiserfs: using flush barriers [ 137.673573][ T5928] reiserfs: using flush barriers [ 137.677025][ T5931] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 137.687639][ T5929] REISERFS (device loop4): checking transaction log (loop4) [ 137.695560][ T5928] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.702621][ T5927] REISERFS (device loop5): checking transaction log (loop5) [ 137.719397][ T5930] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.727239][ T5926] overlayfs: failed to resolve './file0': -2 [ 137.748540][ T5930] REISERFS (device loop1): Using r5 hash to sort names [ 137.748547][ T5929] REISERFS (device loop4): Using r5 hash to sort names [ 137.748723][ T5929] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 137.756214][ T5928] REISERFS (device loop2): checking transaction log (loop2) [pid 5931] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5929] <... mount resumed>) = 0 [pid 5926] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 137.764895][ T5930] REISERFS (device loop1): Using r5 hash to sort names [ 137.775110][ T5931] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 137.786613][ T5927] REISERFS (device loop5): Using r5 hash to sort names [ 137.789151][ T5931] REISERFS (device loop3): using ordered data mode [ 137.799723][ T5928] REISERFS (device loop2): Using r5 hash to sort names [ 137.805115][ T5931] reiserfs: using flush barriers [ 137.806408][ T5929] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5929] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5926] creat("./file0/file0", 0202 [pid 5930] <... mount resumed>) = 0 [pid 5929] <... openat resumed>) = 3 [pid 5926] <... creat resumed>) = -1 ENOENT (No such file or directory) [ 137.811918][ T5931] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 137.819851][ T5930] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 137.826186][ T5931] REISERFS (device loop3): checking transaction log (loop3) [ 137.833500][ T5930] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5930] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5929] chdir("./file0" [pid 5926] exit_group(0 [pid 5930] <... openat resumed>) = 3 [pid 5929] <... chdir resumed>) = 0 [pid 5926] <... exit_group resumed>) = ? [pid 5930] chdir("./file0" [pid 5926] +++ exited with 0 +++ [pid 5930] <... chdir resumed>) = 0 [pid 5929] ioctl(4, LOOP_CLR_FD [pid 5930] ioctl(4, LOOP_CLR_FD [pid 5929] <... ioctl resumed>) = 0 [pid 5930] <... ioctl resumed>) = 0 [pid 5929] close(4 [pid 5930] close(4 [pid 5929] <... close resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5926, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5930] <... close resumed>) = 0 [pid 5929] mkdir("./file1", 000 [pid 5927] <... mount resumed>) = 0 [pid 5068] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5930] mkdir("./file1", 000 [pid 5929] <... mkdir resumed>) = 0 [pid 5927] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5930] <... mkdir resumed>) = 0 [pid 5929] mkdir("./bus", 000 [pid 5927] <... openat resumed>) = 3 [pid 5068] lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./70/binderfs") = 0 [pid 5930] mkdir("./bus", 000 [pid 5929] <... mkdir resumed>) = 0 [pid 5068] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5930] <... mkdir resumed>) = 0 [pid 5929] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5927] chdir("./file0" [ 137.850964][ T5928] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 137.862385][ T5927] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 137.904445][ T5927] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5930] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5928] <... mount resumed>) = 0 [pid 5928] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5928] chdir("./file0") = 0 [pid 5928] ioctl(4, LOOP_CLR_FD) = 0 [pid 5927] <... chdir resumed>) = 0 [pid 5927] ioctl(4, LOOP_CLR_FD) = 0 [pid 5927] close(4) = 0 [pid 5927] mkdir("./file1", 000) = 0 [pid 5927] mkdir("./bus", 000 [pid 5928] close(4) = 0 [pid 5927] <... mkdir resumed>) = 0 [pid 5928] mkdir("./file1", 000 [ 137.934106][ T5929] overlayfs: upper fs needs to support d_type. [ 137.935940][ T5928] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 137.940491][ T5929] overlayfs: upper fs does not support tmpfile. [ 137.957455][ T5930] overlayfs: upper fs needs to support d_type. [ 137.968086][ T5930] overlayfs: upper fs does not support tmpfile. [pid 5927] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5928] <... mkdir resumed>) = 0 [pid 5928] mkdir("./bus", 000) = 0 [ 137.997888][ T5930] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 138.006407][ T5927] overlayfs: upper fs needs to support d_type. [ 138.008826][ T5928] overlayfs: upper fs needs to support d_type. [ 138.012778][ T5927] overlayfs: upper fs does not support tmpfile. [ 138.025662][ T5931] REISERFS (device loop3): Using r5 hash to sort names [ 138.032698][ T5931] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5928] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5930] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 138.049860][ T5930] overlayfs: failed to resolve './file0': -2 [ 138.050705][ T5928] overlayfs: upper fs does not support tmpfile. [ 138.063523][ T5929] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 138.071650][ T5929] overlayfs: failed to resolve './file0': -2 [ 138.079929][ T5928] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 138.084029][ T5927] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5930] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5930] exit_group(0) = ? [pid 5930] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5930, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] <... umount2 resumed>) = 0 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5929] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./70/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./70/binderfs") = 0 [pid 5068] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] <... mount resumed>) = 0 [pid 5929] creat("./file0/file0", 0202 [pid 5928] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5927] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5931] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5929] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5928] creat("./file0/file0", 0202 [pid 5927] creat("./file0/file0", 0202 [pid 5931] <... openat resumed>) = 3 [pid 5929] exit_group(0 [pid 5928] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5927] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] lstat("./70/file0", [pid 5931] chdir("./file0" [pid 5929] <... exit_group resumed>) = ? [pid 5928] exit_group(0 [pid 5927] exit_group(0 [pid 5931] <... chdir resumed>) = 0 [pid 5929] +++ exited with 0 +++ [pid 5928] <... exit_group resumed>) = ? [pid 5927] <... exit_group resumed>) = ? [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5931] ioctl(4, LOOP_CLR_FD [pid 5928] +++ exited with 0 +++ [pid 5927] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5929, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5068] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5931] <... ioctl resumed>) = 0 [ 138.101488][ T5931] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 138.132899][ T5928] overlayfs: failed to resolve './file0': -2 [ 138.140262][ T5927] overlayfs: failed to resolve './file0': -2 [pid 5931] close(4) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5928, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5931] mkdir("./file1", 000 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5927, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5069] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5931] <... mkdir resumed>) = 0 [pid 5073] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 4 [pid 5931] mkdir("./bus", 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./70/file0", [pid 5068] fstat(4, [pid 5931] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5931] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5073] fstat(3, [pid 5072] fstat(3, [pid 5070] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 5069] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(4, [pid 5073] getdents64(3, [pid 5072] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5069] fstat(4, [pid 5068] close(4 [pid 5073] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5068] rmdir("./70/file0" [pid 5073] lstat("./70/binderfs", [pid 5072] lstat("./71/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] lstat("./70/binderfs", [pid 5069] getdents64(4, [pid 5068] getdents64(3, [pid 5073] unlink("./70/binderfs" [pid 5072] unlink("./71/binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] unlink("./70/binderfs" [pid 5069] close(4 [pid 5068] close(3 [pid 5073] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5070] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./70/file0" [pid 5068] rmdir("./70" [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] mkdir("./71", 0777 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5069] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5069] rmdir("./70" [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] mkdir("./71", 0777 [pid 5068] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5938 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5939 ./strace-static-x86_64: Process 5938 attached [pid 5938] chdir("./71") = 0 ./strace-static-x86_64: Process 5939 attached [pid 5938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5939] chdir("./71" [pid 5938] setpgid(0, 0) = 0 [pid 5939] <... chdir resumed>) = 0 [pid 5938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5939] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5939] setpgid(0, 0 [pid 5938] <... openat resumed>) = 3 [pid 5939] <... setpgid resumed>) = 0 [pid 5938] write(3, "1000", 4 [pid 5939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] <... write resumed>) = 4 [pid 5939] <... openat resumed>) = 3 [pid 5938] close(3 [pid 5939] write(3, "1000", 4 [pid 5938] <... close resumed>) = 0 [pid 5939] <... write resumed>) = 4 [pid 5938] symlink("/dev/binderfs", "./binderfs" [pid 5939] close(3 [pid 5938] <... symlink resumed>) = 0 [pid 5939] <... close resumed>) = 0 [pid 5938] memfd_create("syzkaller", 0 [pid 5939] symlink("/dev/binderfs", "./binderfs" [pid 5938] <... memfd_create resumed>) = 3 [pid 5939] <... symlink resumed>) = 0 [pid 5938] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5939] memfd_create("syzkaller", 0 [pid 5938] <... mmap resumed>) = 0x7f7f7af80000 [pid 5939] <... memfd_create resumed>) = 3 [pid 5939] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 138.197344][ T5931] overlayfs: upper fs needs to support d_type. [ 138.232765][ T5931] overlayfs: upper fs does not support tmpfile. [ 138.264047][ T5931] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 138.272423][ T5931] overlayfs: failed to resolve './file0': -2 [pid 5931] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5931] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5931] exit_group(0) = ? [pid 5938] 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"..., 4194304 [pid 5931] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5931, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./69", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./69", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./69/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5939] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./69/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./69/binderfs") = 0 [pid 5071] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... umount2 resumed>) = 0 [pid 5073] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(4, [pid 5070] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./71/file0") = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./71" [pid 5073] lstat("./70/file0", [pid 5072] <... rmdir resumed>) = 0 [pid 5070] lstat("./70/file0", [pid 5072] mkdir("./72", 0777) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5073] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5070] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5940 [pid 5070] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 5940 attached [pid 5073] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5940] chdir("./72" [pid 5939] <... write resumed>) = 4194304 [pid 5073] fstat(4, [pid 5070] fstat(4, [pid 5940] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5940] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5070] getdents64(4, [pid 5940] <... prctl resumed>) = 0 [pid 5939] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5940] setpgid(0, 0 [pid 5073] getdents64(4, [pid 5070] getdents64(4, [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5940] <... setpgid resumed>) = 0 [pid 5939] <... munmap resumed>) = 0 [pid 5073] close(4 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... close resumed>) = 0 [pid 5070] close(4) = 0 [pid 5073] rmdir("./70/file0" [pid 5940] <... openat resumed>) = 3 [pid 5070] rmdir("./70/file0" [pid 5073] <... rmdir resumed>) = 0 [pid 5940] write(3, "1000", 4 [pid 5073] getdents64(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5940] <... write resumed>) = 4 [pid 5939] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5940] close(3 [pid 5073] close(3 [pid 5070] close(3 [pid 5940] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5940] symlink("/dev/binderfs", "./binderfs" [pid 5939] <... openat resumed>) = 4 [pid 5073] rmdir("./70" [pid 5070] rmdir("./70" [pid 5940] <... symlink resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5940] memfd_create("syzkaller", 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] mkdir("./71", 0777 [pid 5940] <... memfd_create resumed>) = 3 [pid 5939] ioctl(4, LOOP_SET_FD, 3 [pid 5070] mkdir("./71", 0777 [pid 5073] <... mkdir resumed>) = 0 [pid 5940] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... mkdir resumed>) = 0 [pid 5940] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5939] <... ioctl resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... umount2 resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5939] close(3 [pid 5073] close(3 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5939] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] close(3 [pid 5071] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5939] mkdir("./file0", 0777 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... close resumed>) = 0 [pid 5939] <... mkdir resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5939] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5941 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5942 ./strace-static-x86_64: Process 5941 attached [pid 5940] 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"..., 4194304 [pid 5071] lstat("./69/file0", [pid 5941] chdir("./71" [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./69/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 5942 attached [ 138.458331][ T5939] loop1: detected capacity change from 0 to 8192 [pid 5071] openat(AT_FDCWD, "./69/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5942] chdir("./71" [pid 5071] <... openat resumed>) = 4 [pid 5942] <... chdir resumed>) = 0 [pid 5071] fstat(4, [pid 5942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5942] <... prctl resumed>) = 0 [pid 5071] getdents64(4, [pid 5942] setpgid(0, 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5942] <... setpgid resumed>) = 0 [pid 5071] getdents64(4, [pid 5942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5942] <... openat resumed>) = 3 [pid 5071] close(4 [pid 5942] write(3, "1000", 4 [pid 5071] <... close resumed>) = 0 [pid 5942] <... write resumed>) = 4 [pid 5071] rmdir("./69/file0" [pid 5942] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5942] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5942] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5942] <... symlink resumed>) = 0 [pid 5941] <... chdir resumed>) = 0 [pid 5071] close(3 [pid 5942] memfd_create("syzkaller", 0 [pid 5941] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... close resumed>) = 0 [pid 5942] <... memfd_create resumed>) = 3 [pid 5941] <... prctl resumed>) = 0 [pid 5071] rmdir("./69" [pid 5942] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5941] setpgid(0, 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5942] <... mmap resumed>) = 0x7f7f7af80000 [pid 5941] <... setpgid resumed>) = 0 [pid 5071] mkdir("./70", 0777 [pid 5941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] <... write resumed>) = 4194304 [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5941] <... openat resumed>) = 3 [pid 5938] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... close resumed>) = 0 [pid 5941] write(3, "1000", 4 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5941] <... write resumed>) = 4 [pid 5938] <... munmap resumed>) = 0 [pid 5941] close(3 [pid 5938] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5944 [pid 5941] <... close resumed>) = 0 [pid 5938] <... openat resumed>) = 4 ./strace-static-x86_64: Process 5944 attached [pid 5941] symlink("/dev/binderfs", "./binderfs" [pid 5938] ioctl(4, LOOP_SET_FD, 3 [pid 5941] <... symlink resumed>) = 0 [ 138.512815][ T5939] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.543906][ T5939] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5944] chdir("./70" [pid 5941] memfd_create("syzkaller", 0 [pid 5944] <... chdir resumed>) = 0 [pid 5941] <... memfd_create resumed>) = 3 [pid 5944] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5941] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5944] <... prctl resumed>) = 0 [pid 5941] <... mmap resumed>) = 0x7f7f7af80000 [pid 5944] setpgid(0, 0 [pid 5942] 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"..., 4194304 [pid 5944] <... setpgid resumed>) = 0 [pid 5944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5938] <... ioctl resumed>) = 0 [pid 5944] <... openat resumed>) = 3 [pid 5938] close(3 [pid 5944] write(3, "1000", 4 [pid 5938] <... close resumed>) = 0 [pid 5944] <... write resumed>) = 4 [pid 5938] mkdir("./file0", 0777 [pid 5944] close(3 [pid 5938] <... mkdir resumed>) = 0 [pid 5944] <... close resumed>) = 0 [pid 5938] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5944] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5944] memfd_create("syzkaller", 0) = 3 [pid 5944] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 138.560460][ T5938] loop0: detected capacity change from 0 to 8192 [ 138.582584][ T5939] REISERFS (device loop1): using ordered data mode [ 138.589585][ T5939] reiserfs: using flush barriers [pid 5940] <... write resumed>) = 4194304 [pid 5940] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5940] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5942] <... write resumed>) = 4194304 [pid 5940] <... openat resumed>) = 4 [pid 5942] munmap(0x7f7f7af80000, 4194304 [ 138.614572][ T5939] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 138.631309][ T5938] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.643648][ T5939] REISERFS (device loop1): checking transaction log (loop1) [ 138.652650][ T5939] REISERFS (device loop1): Using r5 hash to sort names [pid 5940] ioctl(4, LOOP_SET_FD, 3 [pid 5942] <... munmap resumed>) = 0 [pid 5942] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5942] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5942] close(3) = 0 [pid 5942] mkdir("./file0", 0777) = 0 [pid 5942] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5944] 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"..., 4194304 [pid 5941] 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"..., 4194304 [pid 5940] <... ioctl resumed>) = 0 [ 138.670691][ T5940] loop4: detected capacity change from 0 to 8192 [ 138.672424][ T5942] loop2: detected capacity change from 0 to 8192 [ 138.685617][ T5938] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 138.688200][ T5939] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 138.699329][ T5938] REISERFS (device loop0): using ordered data mode [pid 5939] <... mount resumed>) = 0 [pid 5939] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5939] chdir("./file0") = 0 [pid 5939] ioctl(4, LOOP_CLR_FD) = 0 [pid 5939] close(4 [pid 5940] close(3) = 0 [pid 5940] mkdir("./file0", 0777) = 0 [pid 5940] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5939] <... close resumed>) = 0 [pid 5939] mkdir("./file1", 000) = 0 [pid 5939] mkdir("./bus", 000) = 0 [ 138.708371][ T5939] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 138.736301][ T5942] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.759407][ T5938] reiserfs: using flush barriers [pid 5939] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5944] <... write resumed>) = 4194304 [pid 5944] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5944] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5944] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5944] close(3) = 0 [pid 5944] mkdir("./file0", 0777) = 0 [ 138.767527][ T5940] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.785590][ T5938] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 138.790199][ T5944] loop3: detected capacity change from 0 to 8192 [ 138.802564][ T5939] overlayfs: upper fs needs to support d_type. [pid 5944] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5941] <... write resumed>) = 4194304 [pid 5941] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5941] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5941] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5941] close(3) = 0 [pid 5941] mkdir("./file0", 0777) = 0 [ 138.819885][ T5944] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.823171][ T5941] loop5: detected capacity change from 0 to 8192 [ 138.834174][ T5942] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 138.841651][ T5940] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 138.849789][ T5944] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 138.858462][ T5940] REISERFS (device loop4): using ordered data mode [ 138.867392][ T5939] overlayfs: upper fs does not support tmpfile. [ 138.873942][ T5940] reiserfs: using flush barriers [ 138.885217][ T5941] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 138.899306][ T5938] REISERFS (device loop0): checking transaction log (loop0) [ 138.900226][ T5940] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 138.908210][ T5939] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 138.923019][ T5941] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 138.930403][ T5944] REISERFS (device loop3): using ordered data mode [ 138.939348][ T5942] REISERFS (device loop2): using ordered data mode [ 138.947269][ T5939] overlayfs: failed to resolve './file0': -2 [ 138.957940][ T5942] reiserfs: using flush barriers [ 138.958932][ T5941] REISERFS (device loop5): using ordered data mode [ 138.963686][ T5944] reiserfs: using flush barriers [ 138.970008][ T5942] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 138.974715][ T5938] REISERFS (device loop0): Using r5 hash to sort names [ 138.990920][ T5940] REISERFS (device loop4): checking transaction log (loop4) [ 138.999475][ T5938] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 139.005135][ T5941] reiserfs: using flush barriers [pid 5941] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5939] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 139.017809][ T5944] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 139.023002][ T5942] REISERFS (device loop2): checking transaction log (loop2) [ 139.039491][ T5944] REISERFS (device loop3): checking transaction log (loop3) [ 139.047005][ T5940] REISERFS (device loop4): Using r5 hash to sort names [ 139.055238][ T5938] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5939] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5939] exit_group(0 [pid 5938] <... mount resumed>) = 0 [ 139.061330][ T5944] REISERFS (device loop3): Using r5 hash to sort names [ 139.069594][ T5941] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 139.092623][ T5944] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 139.094077][ T5941] REISERFS (device loop5): checking transaction log (loop5) [pid 5939] <... exit_group resumed>) = ? [pid 5938] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5939] +++ exited with 0 +++ [pid 5938] <... openat resumed>) = 3 [pid 5938] chdir("./file0" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5939, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [ 139.106120][ T5940] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 139.126723][ T5942] REISERFS (device loop2): Using r5 hash to sort names [ 139.127970][ T5941] REISERFS (device loop5): Using r5 hash to sort names [ 139.134158][ T5942] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 139.141131][ T5941] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5938] <... chdir resumed>) = 0 [pid 5941] <... mount resumed>) = 0 [pid 5938] ioctl(4, LOOP_CLR_FD [pid 5069] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./71/binderfs") = 0 [pid 5069] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5940] <... mount resumed>) = 0 [pid 5940] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5941] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5938] <... ioctl resumed>) = 0 [pid 5942] <... mount resumed>) = 0 [pid 5941] <... openat resumed>) = 3 [pid 5938] close(4 [pid 5942] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5941] chdir("./file0" [pid 5938] <... close resumed>) = 0 [pid 5938] mkdir("./file1", 000 [pid 5941] <... chdir resumed>) = 0 [pid 5940] <... openat resumed>) = 3 [pid 5940] chdir("./file0" [pid 5938] <... mkdir resumed>) = 0 [pid 5941] ioctl(4, LOOP_CLR_FD [pid 5942] <... openat resumed>) = 3 [pid 5941] <... ioctl resumed>) = 0 [pid 5938] mkdir("./bus", 000 [pid 5942] chdir("./file0" [pid 5941] close(4 [pid 5942] <... chdir resumed>) = 0 [pid 5941] <... close resumed>) = 0 [pid 5938] <... mkdir resumed>) = 0 [pid 5944] <... mount resumed>) = 0 [pid 5942] ioctl(4, LOOP_CLR_FD [pid 5941] mkdir("./file1", 000 [pid 5938] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5944] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5942] <... ioctl resumed>) = 0 [pid 5942] close(4 [pid 5941] <... mkdir resumed>) = 0 [ 139.154027][ T5944] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 139.166389][ T5941] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 139.175250][ T5940] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 139.184850][ T5942] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5944] <... openat resumed>) = 3 [pid 5942] <... close resumed>) = 0 [pid 5941] mkdir("./bus", 000 [pid 5940] <... chdir resumed>) = 0 [pid 5944] chdir("./file0" [pid 5942] mkdir("./file1", 000 [pid 5941] <... mkdir resumed>) = 0 [pid 5944] <... chdir resumed>) = 0 [pid 5944] ioctl(4, LOOP_CLR_FD [pid 5942] <... mkdir resumed>) = 0 [pid 5941] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5944] <... ioctl resumed>) = 0 [pid 5942] mkdir("./bus", 000 [pid 5940] ioctl(4, LOOP_CLR_FD [pid 5944] close(4 [pid 5942] <... mkdir resumed>) = 0 [pid 5940] <... ioctl resumed>) = 0 [pid 5940] close(4) = 0 [pid 5940] mkdir("./file1", 000) = 0 [pid 5940] mkdir("./bus", 000) = 0 [pid 5944] <... close resumed>) = 0 [pid 5942] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5940] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5944] mkdir("./file1", 000) = 0 [pid 5944] mkdir("./bus", 000) = 0 [ 139.219061][ T5938] overlayfs: upper fs needs to support d_type. [ 139.226287][ T5938] overlayfs: upper fs does not support tmpfile. [ 139.233032][ T5938] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 139.244059][ T5941] overlayfs: upper fs needs to support d_type. [ 139.250901][ T5938] overlayfs: failed to resolve './file0': -2 [ 139.260144][ T5940] overlayfs: upper fs needs to support d_type. [ 139.260756][ T5942] overlayfs: upper fs needs to support d_type. [pid 5944] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5938] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5938] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5938] exit_group(0) = ? [pid 5938] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5938, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5068] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 139.273131][ T5941] overlayfs: upper fs does not support tmpfile. [ 139.279886][ T5942] overlayfs: upper fs does not support tmpfile. [ 139.282002][ T5940] overlayfs: upper fs does not support tmpfile. [ 139.287801][ T5941] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 139.300063][ T5944] overlayfs: upper fs needs to support d_type. [ 139.307179][ T5942] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 139.314342][ T5944] overlayfs: upper fs does not support tmpfile. [pid 5068] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./71/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./71/binderfs") = 0 [pid 5068] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5942] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5942] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5942] exit_group(0 [pid 5069] <... openat resumed>) = 4 [pid 5942] <... exit_group resumed>) = ? [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5942] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5942, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5069] close(4) = 0 [ 139.322211][ T5944] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 139.323802][ T5940] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 139.330645][ T5942] overlayfs: failed to resolve './file0': -2 [ 139.345287][ T5941] overlayfs: failed to resolve './file0': -2 [ 139.366216][ T5944] overlayfs: failed to resolve './file0': -2 [pid 5069] rmdir("./71/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./71") = 0 [pid 5069] mkdir("./72", 0777 [pid 5070] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5944] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5941] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5944] creat("./file0/file0", 0202 [pid 5941] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 5944] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5941] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5944] exit_group(0 [pid 5941] exit_group(0 [pid 5070] <... openat resumed>) = 3 [pid 5944] <... exit_group resumed>) = ? [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5941] <... exit_group resumed>) = ? [pid 5070] fstat(3, [pid 5944] +++ exited with 0 +++ [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5944, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] getdents64(3, [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5950 [pid 5941] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5941, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./70", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5940] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./71/binderfs", [pid 5940] creat("./file0/file0", 0202 [pid 5071] openat(AT_FDCWD, "./70", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5940] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... openat resumed>) = 3 [pid 5070] unlink("./71/binderfs" [pid 5940] exit_group(0 [pid 5073] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(3, [pid 5940] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, [pid 5070] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] fstat(3, [pid 5071] umount2("./70/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5940] +++ exited with 0 +++ [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5940, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} --- [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 5071] lstat("./70/binderfs", ./strace-static-x86_64: Process 5950 attached [pid 5950] chdir("./72" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] unlink("./70/binderfs" [pid 5073] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... unlink resumed>) = 0 [pid 5950] <... chdir resumed>) = 0 [pid 5950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./71/binderfs", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5950] setpgid(0, 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5950] <... setpgid resumed>) = 0 [pid 5950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] unlink("./71/binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5950] <... openat resumed>) = 3 [pid 5073] <... unlink resumed>) = 0 [pid 5072] fstat(3, [pid 5950] write(3, "1000", 4 [pid 5073] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5950] <... write resumed>) = 4 [pid 5072] getdents64(3, [pid 5950] close(3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5950] <... close resumed>) = 0 [pid 5072] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5950] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5950] <... symlink resumed>) = 0 [pid 5072] lstat("./72/binderfs", [pid 5950] memfd_create("syzkaller", 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5950] <... memfd_create resumed>) = 3 [pid 5072] unlink("./72/binderfs" [pid 5950] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... unlink resumed>) = 0 [pid 5950] <... mmap resumed>) = 0x7f7f7af80000 [ 139.382564][ T5940] overlayfs: failed to resolve './file0': -2 [pid 5072] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./71/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./71") = 0 [pid 5070] mkdir("./72", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5951 ./strace-static-x86_64: Process 5951 attached [pid 5951] chdir("./72") = 0 [pid 5951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5951] setpgid(0, 0) = 0 [pid 5951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5951] write(3, "1000", 4) = 4 [pid 5951] close(3) = 0 [pid 5951] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5951] memfd_create("syzkaller", 0 [pid 5068] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5951] <... memfd_create resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./71/file0", [pid 5951] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [pid 5950] 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"..., 4194304 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./71/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./71" [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./72/file0", [pid 5068] mkdir("./72", 0777 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5072] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 3 [pid 5071] lstat("./70/file0", [pid 5072] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5072] <... openat resumed>) = 4 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] fstat(4, [pid 5071] umount2("./70/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./70/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 5072] getdents64(4, [pid 5071] <... openat resumed>) = 4 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] fstat(4, [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5952 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5072] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] <... close resumed>) = 0 [pid 5073] lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./72/file0" [pid 5073] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... rmdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5072] getdents64(3, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5072] close(3 [pid 5071] <... close resumed>) = 0 [pid 5073] fstat(4, [pid 5072] <... close resumed>) = 0 [pid 5071] rmdir("./70/file0" [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5071] <... rmdir resumed>) = 0 [pid 5072] rmdir("./72" [pid 5071] getdents64(3, [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./73", 0777 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5073] close(4) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5073] rmdir("./71/file0" [pid 5071] rmdir("./70" [pid 5073] <... rmdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5073] rmdir("./71" [pid 5071] mkdir("./71", 0777 [pid 5951] 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"..., 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] <... mkdir resumed>) = 0 [pid 5073] mkdir("./72", 0777) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5072] close(3 [pid 5071] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5071] close(3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5953 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5954 ./strace-static-x86_64: Process 5952 attached [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5955 ./strace-static-x86_64: Process 5953 attached [pid 5953] chdir("./73") = 0 [pid 5952] chdir("./72"./strace-static-x86_64: Process 5954 attached [pid 5953] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] chdir("./72" [pid 5953] <... prctl resumed>) = 0 [pid 5954] <... chdir resumed>) = 0 [pid 5953] setpgid(0, 0 [pid 5952] <... chdir resumed>) = 0 [pid 5954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5953] <... setpgid resumed>) = 0 [pid 5952] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] <... prctl resumed>) = 0 [pid 5953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5952] <... prctl resumed>) = 0 [pid 5954] setpgid(0, 0 [pid 5953] <... openat resumed>) = 3 ./strace-static-x86_64: Process 5955 attached [pid 5954] <... setpgid resumed>) = 0 [pid 5953] write(3, "1000", 4 [pid 5952] setpgid(0, 0 [pid 5954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5953] <... write resumed>) = 4 [pid 5954] <... openat resumed>) = 3 [pid 5953] close(3 [pid 5954] write(3, "1000", 4 [pid 5953] <... close resumed>) = 0 [pid 5954] <... write resumed>) = 4 [pid 5953] symlink("/dev/binderfs", "./binderfs" [pid 5954] close(3 [pid 5953] <... symlink resumed>) = 0 [pid 5954] <... close resumed>) = 0 [pid 5953] memfd_create("syzkaller", 0 [pid 5955] chdir("./71" [pid 5954] symlink("/dev/binderfs", "./binderfs" [pid 5953] <... memfd_create resumed>) = 3 [pid 5952] <... setpgid resumed>) = 0 [pid 5954] <... symlink resumed>) = 0 [pid 5953] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5955] <... chdir resumed>) = 0 [pid 5954] memfd_create("syzkaller", 0 [pid 5953] <... mmap resumed>) = 0x7f7f7af80000 [pid 5952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5954] <... memfd_create resumed>) = 3 [pid 5952] <... openat resumed>) = 3 [pid 5954] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5955] <... prctl resumed>) = 0 [pid 5952] write(3, "1000", 4 [pid 5950] <... write resumed>) = 4194304 [pid 5955] setpgid(0, 0 [pid 5953] 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"..., 4194304 [pid 5952] <... write resumed>) = 4 [pid 5950] munmap(0x7f7f7af80000, 4194304 [pid 5955] <... setpgid resumed>) = 0 [pid 5952] close(3 [pid 5950] <... munmap resumed>) = 0 [pid 5952] <... close resumed>) = 0 [pid 5955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5952] symlink("/dev/binderfs", "./binderfs" [pid 5950] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5955] <... openat resumed>) = 3 [pid 5952] <... symlink resumed>) = 0 [pid 5950] <... openat resumed>) = 4 [pid 5955] write(3, "1000", 4) = 4 [pid 5952] memfd_create("syzkaller", 0 [pid 5950] ioctl(4, LOOP_SET_FD, 3 [pid 5955] close(3) = 0 [pid 5952] <... memfd_create resumed>) = 3 [pid 5955] symlink("/dev/binderfs", "./binderfs" [pid 5952] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5955] <... symlink resumed>) = 0 [pid 5952] <... mmap resumed>) = 0x7f7f7af80000 [pid 5955] memfd_create("syzkaller", 0) = 3 [pid 5955] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5950] <... ioctl resumed>) = 0 [pid 5950] close(3) = 0 [pid 5950] mkdir("./file0", 0777) = 0 [ 139.729376][ T5950] loop1: detected capacity change from 0 to 8192 [pid 5950] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5954] 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"..., 4194304 [pid 5955] 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"..., 4194304 [pid 5951] <... write resumed>) = 4194304 [pid 5951] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5952] 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"..., 4194304 [pid 5951] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 139.777330][ T5950] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.816865][ T5950] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5951] ioctl(4, LOOP_SET_FD, 3 [pid 5953] <... write resumed>) = 4194304 [pid 5951] <... ioctl resumed>) = 0 [pid 5953] munmap(0x7f7f7af80000, 4194304 [pid 5951] close(3) = 0 [pid 5951] mkdir("./file0", 0777 [pid 5953] <... munmap resumed>) = 0 [pid 5951] <... mkdir resumed>) = 0 [pid 5953] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5951] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5953] <... openat resumed>) = 4 [ 139.834760][ T5951] loop2: detected capacity change from 0 to 8192 [ 139.847264][ T5950] REISERFS (device loop1): using ordered data mode [pid 5953] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5953] close(3) = 0 [pid 5953] mkdir("./file0", 0777) = 0 [ 139.876494][ T5953] loop4: detected capacity change from 0 to 8192 [ 139.877295][ T5950] reiserfs: using flush barriers [ 139.884125][ T5951] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5953] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5955] <... write resumed>) = 4194304 [pid 5955] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5955] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5955] ioctl(4, LOOP_SET_FD, 3 [pid 5954] <... write resumed>) = 4194304 [pid 5952] <... write resumed>) = 4194304 [pid 5955] <... ioctl resumed>) = 0 [pid 5955] close(3) = 0 [pid 5955] mkdir("./file0", 0777) = 0 [pid 5955] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5954] munmap(0x7f7f7af80000, 4194304 [ 139.913980][ T5950] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 139.926598][ T5955] loop3: detected capacity change from 0 to 8192 [ 139.937470][ T5953] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.946962][ T5951] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 139.955355][ T5953] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 139.961273][ T5950] REISERFS (device loop1): checking transaction log (loop1) [pid 5952] munmap(0x7f7f7af80000, 4194304 [pid 5954] <... munmap resumed>) = 0 [pid 5952] <... munmap resumed>) = 0 [pid 5954] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5952] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5954] <... openat resumed>) = 4 [pid 5952] <... openat resumed>) = 4 [ 139.970317][ T5955] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 139.978384][ T5951] REISERFS (device loop2): using ordered data mode [ 139.990283][ T5953] REISERFS (device loop4): using ordered data mode [ 139.996755][ T5951] reiserfs: using flush barriers [ 140.003667][ T5955] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 140.008630][ T5953] reiserfs: using flush barriers [pid 5954] ioctl(4, LOOP_SET_FD, 3 [pid 5952] ioctl(4, LOOP_SET_FD, 3 [pid 5954] <... ioctl resumed>) = 0 [pid 5952] <... ioctl resumed>) = 0 [pid 5952] close(3) = 0 [pid 5952] mkdir("./file0", 0777) = 0 [ 140.021865][ T5955] REISERFS (device loop3): using ordered data mode [ 140.022717][ T5950] REISERFS (device loop1): Using r5 hash to sort names [ 140.028859][ T5955] reiserfs: using flush barriers [ 140.035633][ T5952] loop0: detected capacity change from 0 to 8192 [ 140.043913][ T5950] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 140.046851][ T5954] loop5: detected capacity change from 0 to 8192 [ 140.059709][ T5950] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5952] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5954] close(3 [pid 5950] <... mount resumed>) = 0 [pid 5950] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5950] chdir("./file0") = 0 [pid 5950] ioctl(4, LOOP_CLR_FD) = 0 [pid 5950] close(4) = 0 [pid 5950] mkdir("./file1", 000) = 0 [pid 5950] mkdir("./bus", 000) = 0 [pid 5954] <... close resumed>) = 0 [pid 5954] mkdir("./file0", 0777) = 0 [pid 5950] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 140.074160][ T5953] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 140.090894][ T5951] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 140.091359][ T5955] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5954] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5950] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 140.108792][ T5953] REISERFS (device loop4): checking transaction log (loop4) [ 140.124126][ T5950] overlayfs: upper fs needs to support d_type. [ 140.131751][ T5952] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.136774][ T5950] overlayfs: upper fs does not support tmpfile. [ 140.156627][ T5950] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.165116][ T5950] overlayfs: failed to resolve './file0': -2 [ 140.171777][ T5951] REISERFS (device loop2): checking transaction log (loop2) [ 140.179862][ T5954] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.180080][ T5952] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 140.194590][ T5953] REISERFS (device loop4): Using r5 hash to sort names [ 140.202373][ T5952] REISERFS (device loop0): using ordered data mode [ 140.209162][ T5951] REISERFS (device loop2): Using r5 hash to sort names [ 140.215575][ T5952] reiserfs: using flush barriers [pid 5950] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5950] exit_group(0) = ? [pid 5950] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5950, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 140.216934][ T5955] REISERFS (device loop3): checking transaction log (loop3) [ 140.223518][ T5952] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 140.251458][ T5955] REISERFS (device loop3): Using r5 hash to sort names [ 140.258619][ T5955] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./72/binderfs" [pid 5955] <... mount resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 140.261559][ T5951] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 140.271361][ T5955] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 140.293255][ T5954] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 140.296759][ T5953] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 140.303270][ T5952] REISERFS (device loop0): checking transaction log (loop0) [pid 5955] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5955] chdir("./file0" [pid 5953] <... mount resumed>) = 0 [pid 5953] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5953] chdir("./file0") = 0 [pid 5953] ioctl(4, LOOP_CLR_FD) = 0 [pid 5953] close(4) = 0 [pid 5953] mkdir("./file1", 000) = 0 [pid 5953] mkdir("./bus", 000 [pid 5955] <... chdir resumed>) = 0 [pid 5955] ioctl(4, LOOP_CLR_FD) = 0 [pid 5955] close(4) = 0 [pid 5955] mkdir("./file1", 000) = 0 [pid 5955] mkdir("./bus", 000) = 0 [pid 5951] <... mount resumed>) = 0 [pid 5951] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5951] chdir("./file0" [pid 5955] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5951] <... chdir resumed>) = 0 [pid 5951] ioctl(4, LOOP_CLR_FD) = 0 [pid 5951] close(4) = 0 [pid 5951] mkdir("./file1", 000) = 0 [pid 5951] mkdir("./bus", 000) = 0 [pid 5951] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5953] <... mkdir resumed>) = 0 [ 140.316303][ T5953] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 140.332270][ T5954] REISERFS (device loop5): using ordered data mode [ 140.340014][ T5951] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 140.357273][ T5955] overlayfs: upper fs needs to support d_type. [ 140.363454][ T5954] reiserfs: using flush barriers [ 140.369045][ T5951] overlayfs: upper fs needs to support d_type. [ 140.376894][ T5954] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 140.378108][ T5953] overlayfs: upper fs needs to support d_type. [ 140.399924][ T5951] overlayfs: upper fs does not support tmpfile. [ 140.404479][ T5955] overlayfs: upper fs does not support tmpfile. [ 140.406618][ T5952] REISERFS (device loop0): Using r5 hash to sort names [ 140.426252][ T5955] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.426267][ T5951] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.454494][ T5952] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 140.464109][ T5954] REISERFS (device loop5): checking transaction log (loop5) [pid 5953] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5951] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5951] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5951] exit_group(0) = ? [pid 5069] <... umount2 resumed>) = 0 [pid 5951] +++ exited with 0 +++ [pid 5952] <... mount resumed>) = 0 [pid 5952] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5952] chdir("./file0") = 0 [pid 5952] ioctl(4, LOOP_CLR_FD) = 0 [pid 5952] close(4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5951, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5952] <... close resumed>) = 0 [ 140.487041][ T5951] overlayfs: failed to resolve './file0': -2 [ 140.505593][ T5952] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 140.509033][ T5955] overlayfs: failed to resolve './file0': -2 [ 140.521044][ T5954] REISERFS (device loop5): Using r5 hash to sort names [pid 5069] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5952] mkdir("./file1", 000) = 0 [pid 5952] mkdir("./bus", 000) = 0 [pid 5952] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./72/file0", [pid 5955] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5955] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5955] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5954] <... mount resumed>) = 0 [pid 5955] exit_group(0 [pid 5070] <... openat resumed>) = 3 [pid 5954] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5955] <... exit_group resumed>) = ? [pid 5954] <... openat resumed>) = 3 [pid 5070] fstat(3, [pid 5954] chdir("./file0" [pid 5069] <... openat resumed>) = 4 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5955] +++ exited with 0 +++ [pid 5069] fstat(4, [pid 5954] <... chdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5955, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5954] ioctl(4, LOOP_CLR_FD [pid 5070] getdents64(3, [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5069] getdents64(4, [pid 5954] <... ioctl resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5954] close(4 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5070] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5954] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5954] mkdir("./file1", 000 [pid 5070] lstat("./72/binderfs", [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5954] <... mkdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] umount2("./71", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(4 [pid 5954] mkdir("./bus", 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] unlink("./72/binderfs" [pid 5069] <... close resumed>) = 0 [pid 5954] <... mkdir resumed>) = 0 [pid 5954] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] openat(AT_FDCWD, "./71", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... unlink resumed>) = 0 [ 140.528618][ T5954] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 140.529119][ T5953] overlayfs: upper fs does not support tmpfile. [ 140.542114][ T5954] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 140.562657][ T5953] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.573918][ T5953] overlayfs: failed to resolve './file0': -2 [ 140.575385][ T5952] overlayfs: upper fs needs to support d_type. [pid 5069] rmdir("./72/file0" [pid 5953] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... openat resumed>) = 3 [pid 5070] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5953] creat("./file0/file0", 0202 [pid 5071] fstat(3, [pid 5069] getdents64(3, [pid 5953] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5953] exit_group(0) = ? [pid 5071] getdents64(3, [pid 5069] close(3 [pid 5953] +++ exited with 0 +++ [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... close resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5953, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5071] umount2("./71/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./72" [pid 5072] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./71/binderfs", [pid 5069] mkdir("./73", 0777 [pid 5072] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] unlink("./71/binderfs" [pid 5072] fstat(3, [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... unlink resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [ 140.587352][ T5954] overlayfs: upper fs needs to support d_type. [ 140.601442][ T5952] overlayfs: upper fs does not support tmpfile. [ 140.604582][ T5954] overlayfs: upper fs does not support tmpfile. [ 140.608938][ T5952] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.626071][ T5952] overlayfs: failed to resolve './file0': -2 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./73/binderfs") = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3 [pid 5952] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5952] creat("./file0/file0", 0202 [pid 5069] <... close resumed>) = 0 [pid 5952] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5952] exit_group(0) = ? [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5962 [pid 5952] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5952, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./72/binderfs") = 0 [pid 5068] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5962 attached [pid 5962] chdir("./73") = 0 [pid 5962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5962] setpgid(0, 0) = 0 [pid 5962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5962] write(3, "1000", 4) = 4 [pid 5962] close(3) = 0 [pid 5962] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5962] memfd_create("syzkaller", 0) = 3 [pid 5962] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5954] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5954] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 140.636570][ T5954] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 140.674087][ T5954] overlayfs: failed to resolve './file0': -2 [pid 5954] exit_group(0) = ? [pid 5954] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5954, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5071] <... umount2 resumed>) = 0 [pid 5073] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./72/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./72/binderfs") = 0 [pid 5073] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./71/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./71/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./71/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./71/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./71" [pid 5070] <... umount2 resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./72", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5070] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./72/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... close resumed>) = 0 [pid 5070] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./72/file0", [pid 5070] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5963 [pid 5070] rmdir("./72/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./72") = 0 [pid 5070] mkdir("./73", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5964 [pid 5068] <... openat resumed>) = 4 [pid 5072] lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5962] 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"..., 4194304 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(4, ./strace-static-x86_64: Process 5963 attached [pid 5072] <... openat resumed>) = 4 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5963] chdir("./72" [pid 5073] <... umount2 resumed>) = 0 [pid 5072] fstat(4, ./strace-static-x86_64: Process 5964 attached [pid 5963] <... chdir resumed>) = 0 [pid 5073] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(4 [pid 5964] chdir("./73" [pid 5963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(4, [pid 5068] <... close resumed>) = 0 [pid 5964] <... chdir resumed>) = 0 [pid 5963] <... prctl resumed>) = 0 [pid 5073] lstat("./72/file0", [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] rmdir("./72/file0" [pid 5964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5963] setpgid(0, 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5068] <... rmdir resumed>) = 0 [pid 5964] <... prctl resumed>) = 0 [pid 5963] <... setpgid resumed>) = 0 [pid 5073] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 5964] setpgid(0, 0 [pid 5963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(4 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5964] <... setpgid resumed>) = 0 [pid 5963] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... close resumed>) = 0 [pid 5068] close(3 [pid 5964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5963] write(3, "1000", 4 [pid 5073] <... openat resumed>) = 4 [pid 5072] rmdir("./73/file0" [pid 5068] <... close resumed>) = 0 [pid 5964] <... openat resumed>) = 3 [pid 5963] <... write resumed>) = 4 [pid 5073] fstat(4, [pid 5072] <... rmdir resumed>) = 0 [pid 5068] rmdir("./72" [pid 5964] write(3, "1000", 4 [pid 5963] close(3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5068] <... rmdir resumed>) = 0 [pid 5964] <... write resumed>) = 4 [pid 5963] <... close resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] mkdir("./73", 0777 [pid 5964] close(3 [pid 5963] symlink("/dev/binderfs", "./binderfs" [pid 5962] <... write resumed>) = 4194304 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] close(3 [pid 5964] <... close resumed>) = 0 [pid 5963] <... symlink resumed>) = 0 [pid 5962] munmap(0x7f7f7af80000, 4194304 [pid 5073] getdents64(4, [pid 5072] <... close resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5964] symlink("/dev/binderfs", "./binderfs" [pid 5963] memfd_create("syzkaller", 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] rmdir("./73" [pid 5964] <... symlink resumed>) = 0 [pid 5963] <... memfd_create resumed>) = 3 [pid 5962] <... munmap resumed>) = 0 [pid 5073] close(4 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5964] memfd_create("syzkaller", 0 [pid 5963] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5962] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5964] <... memfd_create resumed>) = 3 [pid 5963] <... mmap resumed>) = 0x7f7f7af80000 [pid 5962] <... openat resumed>) = 4 [pid 5073] rmdir("./72/file0" [pid 5072] mkdir("./74", 0777 [pid 5068] <... openat resumed>) = 3 [pid 5964] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5962] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5964] <... mmap resumed>) = 0x7f7f7af80000 [pid 5962] <... ioctl resumed>) = 0 [pid 5073] getdents64(3, [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5068] close(3 [pid 5073] close(3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5068] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] rmdir("./72" [pid 5072] close(3 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5965 [pid 5073] mkdir("./73", 0777 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5966 [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5967 [pid 5962] close(3) = 0 [pid 5962] mkdir("./file0", 0777./strace-static-x86_64: Process 5967 attached ) = 0 [pid 5967] chdir("./73" [pid 5962] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 5965 attached [pid 5967] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 5966 attached [pid 5967] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5966] chdir("./74" [pid 5967] setpgid(0, 0 [pid 5965] chdir("./73" [pid 5963] 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"..., 4194304 [pid 5967] <... setpgid resumed>) = 0 [pid 5966] <... chdir resumed>) = 0 [pid 5965] <... chdir resumed>) = 0 [pid 5967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5967] write(3, "1000", 4) = 4 [pid 5967] close(3) = 0 [pid 5967] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5967] memfd_create("syzkaller", 0) = 3 [pid 5967] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 140.895730][ T5962] loop1: detected capacity change from 0 to 8192 [pid 5966] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5966] <... prctl resumed>) = 0 [pid 5965] <... prctl resumed>) = 0 [pid 5966] setpgid(0, 0 [pid 5965] setpgid(0, 0 [pid 5966] <... setpgid resumed>) = 0 [pid 5965] <... setpgid resumed>) = 0 [pid 5966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5966] <... openat resumed>) = 3 [pid 5965] <... openat resumed>) = 3 [pid 5966] write(3, "1000", 4 [pid 5965] write(3, "1000", 4 [pid 5966] <... write resumed>) = 4 [pid 5965] <... write resumed>) = 4 [pid 5967] 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"..., 4194304 [pid 5966] close(3 [pid 5965] close(3 [pid 5966] <... close resumed>) = 0 [pid 5965] <... close resumed>) = 0 [pid 5966] symlink("/dev/binderfs", "./binderfs" [pid 5965] symlink("/dev/binderfs", "./binderfs" [pid 5966] <... symlink resumed>) = 0 [pid 5965] <... symlink resumed>) = 0 [pid 5966] memfd_create("syzkaller", 0 [pid 5965] memfd_create("syzkaller", 0 [pid 5966] <... memfd_create resumed>) = 3 [pid 5965] <... memfd_create resumed>) = 3 [pid 5966] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5965] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5966] <... mmap resumed>) = 0x7f7f7af80000 [pid 5965] <... mmap resumed>) = 0x7f7f7af80000 [ 140.953811][ T5962] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 140.983747][ T5962] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5964] 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"..., 4194304 [pid 5967] <... write resumed>) = 4194304 [pid 5967] munmap(0x7f7f7af80000, 4194304 [pid 5964] <... write resumed>) = 4194304 [pid 5967] <... munmap resumed>) = 0 [pid 5966] 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"..., 4194304 [pid 5964] munmap(0x7f7f7af80000, 4194304 [pid 5967] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5964] <... munmap resumed>) = 0 [pid 5967] <... openat resumed>) = 4 [pid 5964] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5967] ioctl(4, LOOP_SET_FD, 3 [pid 5964] <... openat resumed>) = 4 [pid 5967] <... ioctl resumed>) = 0 [ 141.054684][ T5962] REISERFS (device loop1): using ordered data mode [ 141.061285][ T5962] reiserfs: using flush barriers [ 141.085770][ T5967] loop5: detected capacity change from 0 to 8192 [ 141.092816][ T5964] loop2: detected capacity change from 0 to 8192 [pid 5964] ioctl(4, LOOP_SET_FD, 3 [pid 5967] close(3 [pid 5965] 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"..., 4194304 [pid 5964] <... ioctl resumed>) = 0 [pid 5967] <... close resumed>) = 0 [pid 5963] <... write resumed>) = 4194304 [pid 5963] munmap(0x7f7f7af80000, 4194304 [pid 5964] close(3 [pid 5967] mkdir("./file0", 0777 [pid 5964] <... close resumed>) = 0 [pid 5967] <... mkdir resumed>) = 0 [pid 5964] mkdir("./file0", 0777 [pid 5967] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5964] <... mkdir resumed>) = 0 [pid 5963] <... munmap resumed>) = 0 [pid 5964] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5963] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5963] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5963] close(3) = 0 [pid 5963] mkdir("./file0", 0777) = 0 [ 141.093928][ T5962] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 141.131091][ T5963] loop3: detected capacity change from 0 to 8192 [ 141.140754][ T5964] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5963] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5965] <... write resumed>) = 4194304 [pid 5965] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5965] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5965] ioctl(4, LOOP_SET_FD, 3 [pid 5966] <... write resumed>) = 4194304 [ 141.145766][ T5962] REISERFS (device loop1): checking transaction log (loop1) [ 141.154925][ T5967] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.175638][ T5963] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.180801][ T5965] loop0: detected capacity change from 0 to 8192 [ 141.196327][ T5962] REISERFS (device loop1): Using r5 hash to sort names [pid 5965] <... ioctl resumed>) = 0 [pid 5965] close(3) = 0 [pid 5965] mkdir("./file0", 0777) = 0 [pid 5965] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 141.198450][ T5963] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 141.204047][ T5962] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.213179][ T5964] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 141.228761][ T5962] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 141.235536][ T5967] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5966] munmap(0x7f7f7af80000, 4194304 [pid 5962] <... mount resumed>) = 0 [pid 5962] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5962] chdir("./file0") = 0 [pid 5962] ioctl(4, LOOP_CLR_FD) = 0 [pid 5962] close(4 [pid 5966] <... munmap resumed>) = 0 [pid 5962] <... close resumed>) = 0 [pid 5962] mkdir("./file1", 000) = 0 [pid 5962] mkdir("./bus", 000) = 0 [ 141.244008][ T5965] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 141.265250][ T5963] REISERFS (device loop3): using ordered data mode [ 141.273634][ T5963] reiserfs: using flush barriers [ 141.285176][ T5963] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5962] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5966] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 141.294064][ T5962] overlayfs: upper fs needs to support d_type. [ 141.302786][ T5964] REISERFS (device loop2): using ordered data mode [ 141.313502][ T5967] REISERFS (device loop5): using ordered data mode [ 141.314628][ T5964] reiserfs: using flush barriers [ 141.322216][ T5967] reiserfs: using flush barriers [ 141.326748][ T5965] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 141.332666][ T5967] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 141.339773][ T5965] REISERFS (device loop0): using ordered data mode [ 141.356022][ T5964] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 141.362368][ T5965] reiserfs: using flush barriers [ 141.363475][ T5965] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 141.378994][ T5966] loop4: detected capacity change from 0 to 8192 [pid 5966] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5966] close(3) = 0 [ 141.383688][ T5965] REISERFS (device loop0): checking transaction log (loop0) [ 141.400165][ T5964] REISERFS (device loop2): checking transaction log (loop2) [ 141.421571][ T5967] REISERFS (device loop5): checking transaction log (loop5) [ 141.421844][ T5962] overlayfs: upper fs does not support tmpfile. [ 141.430234][ T5963] REISERFS (device loop3): checking transaction log (loop3) [ 141.443843][ T5962] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5966] mkdir("./file0", 0777) = 0 [ 141.445332][ T5967] REISERFS (device loop5): Using r5 hash to sort names [ 141.452243][ T5965] REISERFS (device loop0): Using r5 hash to sort names [ 141.458347][ T5967] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.465202][ T5964] REISERFS (device loop2): Using r5 hash to sort names [ 141.478081][ T5963] REISERFS (device loop3): Using r5 hash to sort names [ 141.485905][ T5962] overlayfs: failed to resolve './file0': -2 [ 141.492099][ T5963] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.498417][ T5965] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.509886][ T5967] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 141.523055][ T5964] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.531995][ T5966] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5966] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5962] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5962] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5962] exit_group(0) = ? [pid 5962] +++ exited with 0 +++ [pid 5965] <... mount resumed>) = 0 [pid 5965] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5965] chdir("./file0") = 0 [pid 5965] ioctl(4, LOOP_CLR_FD) = 0 [pid 5965] close(4) = 0 [pid 5965] mkdir("./file1", 000) = 0 [pid 5965] mkdir("./bus", 000) = 0 [pid 5965] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5962, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5069] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 141.545004][ T5965] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 141.566294][ T5963] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 141.572911][ T5965] overlayfs: upper fs needs to support d_type. [ 141.581904][ T5965] overlayfs: upper fs does not support tmpfile. [ 141.587013][ T5964] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 141.589376][ T5965] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5965] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] lstat("./73/binderfs", [pid 5965] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5965] exit_group(0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5965] <... exit_group resumed>) = ? [pid 5965] +++ exited with 0 +++ [pid 5069] unlink("./73/binderfs") = 0 [pid 5069] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5965, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- [pid 5967] <... mount resumed>) = 0 [pid 5967] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5068] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./73/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./73/binderfs") = 0 [pid 5068] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5967] chdir("./file0") = 0 [pid 5967] ioctl(4, LOOP_CLR_FD) = 0 [ 141.609629][ T5965] overlayfs: failed to resolve './file0': -2 [ 141.623926][ T5966] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 141.634868][ T5966] REISERFS (device loop4): using ordered data mode [ 141.641388][ T5966] reiserfs: using flush barriers [pid 5967] close(4) = 0 [pid 5964] <... mount resumed>) = 0 [pid 5963] <... mount resumed>) = 0 [pid 5967] mkdir("./file1", 000 [pid 5964] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5963] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5967] <... mkdir resumed>) = 0 [pid 5964] <... openat resumed>) = 3 [pid 5963] <... openat resumed>) = 3 [pid 5967] mkdir("./bus", 000 [pid 5964] chdir("./file0" [pid 5963] chdir("./file0" [pid 5964] <... chdir resumed>) = 0 [pid 5967] <... mkdir resumed>) = 0 [pid 5964] ioctl(4, LOOP_CLR_FD [pid 5963] <... chdir resumed>) = 0 [pid 5963] ioctl(4, LOOP_CLR_FD [pid 5964] <... ioctl resumed>) = 0 [pid 5967] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5964] close(4 [pid 5963] <... ioctl resumed>) = 0 [pid 5964] <... close resumed>) = 0 [pid 5963] close(4 [pid 5964] mkdir("./file1", 000 [pid 5963] <... close resumed>) = 0 [pid 5964] <... mkdir resumed>) = 0 [pid 5963] mkdir("./file1", 000 [pid 5964] mkdir("./bus", 000 [pid 5963] <... mkdir resumed>) = 0 [ 141.649729][ T5966] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 141.668226][ T5966] REISERFS (device loop4): checking transaction log (loop4) [ 141.688299][ T5967] overlayfs: upper fs needs to support d_type. [ 141.698329][ T5967] overlayfs: upper fs does not support tmpfile. [pid 5964] <... mkdir resumed>) = 0 [pid 5963] mkdir("./bus", 000 [pid 5964] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... umount2 resumed>) = 0 [pid 5963] <... mkdir resumed>) = 0 [pid 5963] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5967] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 141.707340][ T5967] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 141.715977][ T5967] overlayfs: failed to resolve './file0': -2 [ 141.724659][ T5964] overlayfs: upper fs needs to support d_type. [ 141.731174][ T5964] overlayfs: upper fs does not support tmpfile. [ 141.738955][ T5963] overlayfs: upper fs needs to support d_type. [ 141.746402][ T5966] REISERFS (device loop4): Using r5 hash to sort names [ 141.746425][ T5963] overlayfs: upper fs does not support tmpfile. [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5967] creat("./file0/file0", 0202 [pid 5069] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... close resumed>) = 0 [pid 5069] lstat("./73/file0", [pid 5068] rmdir("./73/file0" [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5069] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5967] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5068] <... close resumed>) = 0 [pid 5069] fstat(4, [pid 5068] rmdir("./73" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5967] exit_group(0 [pid 5069] getdents64(4, [pid 5068] mkdir("./74", 0777 [pid 5967] <... exit_group resumed>) = ? [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5967] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5967, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] close(4 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... close resumed>) = 0 [ 141.760745][ T5964] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 141.765200][ T5966] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 141.769464][ T5964] overlayfs: failed to resolve './file0': -2 [ 141.787855][ T5963] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... restart_syscall resumed>) = 0 [pid 5069] rmdir("./73/file0" [pid 5068] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5964] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] getdents64(3, [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5964] creat("./file0/file0", 0202 [pid 5963] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5974 [pid 5073] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5069] rmdir("./73" [pid 5073] fstat(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] mkdir("./74", 0777 [pid 5073] getdents64(3, [pid 5069] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 5974 attached [pid 5964] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5963] creat("./file0/file0", 0202 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5974] chdir("./74" [pid 5966] <... mount resumed>) = 0 [pid 5964] exit_group(0 [pid 5963] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5974] <... chdir resumed>) = 0 [pid 5966] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5964] <... exit_group resumed>) = ? [pid 5963] exit_group(0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5966] <... openat resumed>) = 3 [pid 5073] lstat("./73/binderfs", [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5974] <... prctl resumed>) = 0 [pid 5966] chdir("./file0" [pid 5964] +++ exited with 0 +++ [pid 5963] <... exit_group resumed>) = ? [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 141.810808][ T5963] overlayfs: failed to resolve './file0': -2 [ 141.845642][ T5966] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] close(3 [pid 5974] setpgid(0, 0 [pid 5966] <... chdir resumed>) = 0 [pid 5963] +++ exited with 0 +++ [pid 5073] unlink("./73/binderfs" [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5964, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- [pid 5069] <... close resumed>) = 0 [pid 5974] <... setpgid resumed>) = 0 [pid 5966] ioctl(4, LOOP_CLR_FD [pid 5974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5966] <... ioctl resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5974] <... openat resumed>) = 3 [pid 5966] close(4 [pid 5073] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5963, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5974] write(3, "1000", 4 [pid 5966] <... close resumed>) = 0 [pid 5974] <... write resumed>) = 4 [pid 5966] mkdir("./file1", 000 [pid 5974] close(3 [pid 5966] <... mkdir resumed>) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5974] <... close resumed>) = 0 [pid 5966] mkdir("./bus", 000 [pid 5974] symlink("/dev/binderfs", "./binderfs" [pid 5966] <... mkdir resumed>) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5974] <... symlink resumed>) = 0 [pid 5966] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5975 ./strace-static-x86_64: Process 5975 attached [pid 5974] memfd_create("syzkaller", 0) = 3 [pid 5974] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5975] chdir("./74" [pid 5070] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5975] <... chdir resumed>) = 0 [pid 5071] umount2("./72", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5975] <... prctl resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./72", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5975] setpgid(0, 0 [pid 5071] <... openat resumed>) = 3 [pid 5975] <... setpgid resumed>) = 0 [pid 5070] fstat(3, [pid 5975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] fstat(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 5975] <... openat resumed>) = 3 [pid 5071] getdents64(3, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5975] write(3, "1000", 4 [pid 5071] umount2("./72/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5975] <... write resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] close(3) = 0 [pid 5071] lstat("./72/binderfs", [pid 5070] lstat("./73/binderfs", [pid 5975] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./72/binderfs" [pid 5975] <... symlink resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] unlink("./73/binderfs" [pid 5975] memfd_create("syzkaller", 0 [pid 5071] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5975] <... memfd_create resumed>) = 3 [pid 5070] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5975] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 141.870483][ T5966] overlayfs: upper fs needs to support d_type. [ 141.894117][ T5966] overlayfs: upper fs does not support tmpfile. [ 141.901081][ T5966] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5974] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./73/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5975] 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"..., 4194304 [pid 5966] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5966] creat("./file0/file0", 0202 [pid 5073] <... openat resumed>) = 4 [pid 5073] fstat(4, [pid 5966] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5966] exit_group(0 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./73/file0") = 0 [pid 5966] <... exit_group resumed>) = ? [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./73") = 0 [ 141.951203][ T5966] overlayfs: failed to resolve './file0': -2 [pid 5073] mkdir("./74", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5966] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5966, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./74/binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5976 [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 5976 attached [pid 5976] chdir("./74") = 0 [pid 5976] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5976] setpgid(0, 0) = 0 [pid 5976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5976] write(3, "1000", 4) = 4 [pid 5976] close(3) = 0 [pid 5976] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5976] memfd_create("syzkaller", 0) = 3 [pid 5976] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [pid 5974] <... write resumed>) = 4194304 [pid 5974] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5974] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5974] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... umount2 resumed>) = 0 [pid 5974] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5976] 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"..., 4194304 [pid 5975] <... write resumed>) = 4194304 [pid 5974] close(3 [pid 5072] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5974] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./73/file0", [pid 5974] mkdir("./file0", 0777 [pid 5071] lstat("./72/file0", [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5975] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5974] <... mkdir resumed>) = 0 [pid 5072] lstat("./74/file0", [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5974] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] umount2("./72/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./72/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5071] fstat(4, [pid 5070] fstat(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] close(4 [pid 5070] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5975] <... munmap resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./72/file0" [pid 5070] close(4 [pid 5072] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] rmdir("./73/file0" [pid 5072] <... openat resumed>) = 4 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./72" [pid 5975] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] fstat(4, [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] mkdir("./73", 0777 [pid 5070] getdents64(3, [pid 5975] <... openat resumed>) = 4 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5975] ioctl(4, LOOP_SET_FD, 3 [pid 5072] getdents64(4, [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5978 [ 142.123706][ T5974] loop0: detected capacity change from 0 to 8192 [ 142.156998][ T5975] loop1: detected capacity change from 0 to 8192 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] close(3 [pid 5072] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./73" [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 5978 attached [pid 5070] <... rmdir resumed>) = 0 [pid 5072] close(4 [pid 5070] mkdir("./74", 0777 [pid 5978] chdir("./73" [pid 5975] <... ioctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5978] <... chdir resumed>) = 0 [pid 5975] close(3 [pid 5072] rmdir("./74/file0" [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5978] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5975] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5978] <... prctl resumed>) = 0 [pid 5975] mkdir("./file0", 0777 [pid 5072] getdents64(3, [pid 5070] <... openat resumed>) = 3 [pid 5978] setpgid(0, 0 [pid 5975] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5978] <... setpgid resumed>) = 0 [pid 5072] close(3 [pid 5070] close(3 [pid 5975] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... close resumed>) = 0 [pid 5978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... close resumed>) = 0 [pid 5976] <... write resumed>) = 4194304 [pid 5976] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5976] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5976] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5976] close(3) = 0 [pid 5976] mkdir("./file0", 0777) = 0 [pid 5976] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5978] <... openat resumed>) = 3 [pid 5072] rmdir("./74" [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5978] write(3, "1000", 4 [pid 5072] <... rmdir resumed>) = 0 [pid 5978] <... write resumed>) = 4 [pid 5072] mkdir("./75", 0777 [pid 5978] close(3 [pid 5072] <... mkdir resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5980 [ 142.159641][ T5974] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.183996][ T5974] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 142.195612][ T5974] REISERFS (device loop0): using ordered data mode [ 142.208566][ T5976] loop5: detected capacity change from 0 to 8192 [ 142.217445][ T5974] reiserfs: using flush barriers [pid 5978] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5978] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5978] <... symlink resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5978] memfd_create("syzkaller", 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5978] <... memfd_create resumed>) = 3 [pid 5072] close(3 [pid 5978] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... close resumed>) = 0 [pid 5978] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5982 [ 142.223676][ T5976] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.238601][ T5974] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 142.255141][ T5974] REISERFS (device loop0): checking transaction log (loop0) [ 142.257060][ T5976] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal ./strace-static-x86_64: Process 5982 attached ./strace-static-x86_64: Process 5980 attached [ 142.273216][ T5975] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.279167][ T5976] REISERFS (device loop5): using ordered data mode [ 142.292743][ T5976] reiserfs: using flush barriers [ 142.294129][ T5974] REISERFS (device loop0): Using r5 hash to sort names [ 142.305560][ T5974] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5978] 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"..., 4194304 [pid 5982] chdir("./75" [pid 5980] chdir("./74" [pid 5982] <... chdir resumed>) = 0 [pid 5980] <... chdir resumed>) = 0 [pid 5982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5982] <... prctl resumed>) = 0 [pid 5980] <... prctl resumed>) = 0 [pid 5982] setpgid(0, 0 [pid 5980] setpgid(0, 0 [pid 5982] <... setpgid resumed>) = 0 [pid 5980] <... setpgid resumed>) = 0 [pid 5974] <... mount resumed>) = 0 [pid 5982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5982] <... openat resumed>) = 3 [pid 5982] write(3, "1000", 4 [pid 5980] <... openat resumed>) = 3 [pid 5974] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5982] <... write resumed>) = 4 [pid 5980] write(3, "1000", 4 [pid 5974] <... openat resumed>) = 3 [pid 5980] <... write resumed>) = 4 [pid 5982] close(3 [pid 5980] close(3 [pid 5982] <... close resumed>) = 0 [pid 5974] chdir("./file0" [pid 5980] <... close resumed>) = 0 [pid 5982] symlink("/dev/binderfs", "./binderfs" [pid 5974] <... chdir resumed>) = 0 [pid 5980] symlink("/dev/binderfs", "./binderfs" [pid 5982] <... symlink resumed>) = 0 [pid 5980] <... symlink resumed>) = 0 [pid 5974] ioctl(4, LOOP_CLR_FD [pid 5982] memfd_create("syzkaller", 0 [pid 5974] <... ioctl resumed>) = 0 [pid 5982] <... memfd_create resumed>) = 3 [pid 5980] memfd_create("syzkaller", 0 [pid 5974] close(4 [pid 5982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5980] <... memfd_create resumed>) = 3 [pid 5974] <... close resumed>) = 0 [pid 5982] <... mmap resumed>) = 0x7f7f7af80000 [ 142.313508][ T5976] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 142.318546][ T5975] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 142.334425][ T5974] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 142.354278][ T5975] REISERFS (device loop1): using ordered data mode [ 142.362627][ T5975] reiserfs: using flush barriers [pid 5980] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5974] mkdir("./file1", 000) = 0 [ 142.381128][ T5976] REISERFS (device loop5): checking transaction log (loop5) [ 142.394652][ T5976] REISERFS (device loop5): Using r5 hash to sort names [ 142.401825][ T5976] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 142.410822][ T5975] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5978] <... write resumed>) = 4194304 [pid 5974] mkdir("./bus", 000 [pid 5978] munmap(0x7f7f7af80000, 4194304 [pid 5976] <... mount resumed>) = 0 [pid 5974] <... mkdir resumed>) = 0 [pid 5978] <... munmap resumed>) = 0 [pid 5976] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5974] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5978] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5976] <... openat resumed>) = 3 [pid 5978] <... openat resumed>) = 4 [pid 5976] chdir("./file0" [pid 5978] ioctl(4, LOOP_SET_FD, 3 [pid 5976] <... chdir resumed>) = 0 [pid 5980] 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"..., 4194304 [pid 5976] ioctl(4, LOOP_CLR_FD) = 0 [pid 5976] close(4) = 0 [ 142.415305][ T5976] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 142.448800][ T5974] overlayfs: upper fs needs to support d_type. [ 142.461063][ T5975] REISERFS (device loop1): checking transaction log (loop1) [ 142.465280][ T5974] overlayfs: upper fs does not support tmpfile. [ 142.468651][ T5978] loop3: detected capacity change from 0 to 8192 [pid 5978] <... ioctl resumed>) = 0 [pid 5976] mkdir("./file1", 000) = 0 [pid 5978] close(3) = 0 [pid 5976] mkdir("./bus", 000 [pid 5978] mkdir("./file0", 0777 [pid 5982] 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"..., 4194304 [pid 5978] <... mkdir resumed>) = 0 [pid 5976] <... mkdir resumed>) = 0 [pid 5978] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 142.498039][ T5974] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 142.505715][ T5975] REISERFS (device loop1): Using r5 hash to sort names [ 142.513468][ T5975] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5976] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5980] <... write resumed>) = 4194304 [pid 5980] munmap(0x7f7f7af80000, 4194304 [pid 5974] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5980] <... munmap resumed>) = 0 [pid 5974] creat("./file0/file0", 0202 [pid 5980] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5974] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5980] <... openat resumed>) = 4 [ 142.542773][ T5976] overlayfs: upper fs needs to support d_type. [ 142.549342][ T5975] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 142.559179][ T5978] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.560040][ T5974] overlayfs: failed to resolve './file0': -2 [ 142.572229][ T5976] overlayfs: upper fs does not support tmpfile. [ 142.572788][ T5976] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5974] exit_group(0 [pid 5980] ioctl(4, LOOP_SET_FD, 3 [pid 5974] <... exit_group resumed>) = ? [pid 5976] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5975] <... mount resumed>) = 0 [pid 5975] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5975] chdir("./file0") = 0 [pid 5975] ioctl(4, LOOP_CLR_FD [pid 5974] +++ exited with 0 +++ [pid 5980] <... ioctl resumed>) = 0 [pid 5976] creat("./file0/file0", 0202 [pid 5975] <... ioctl resumed>) = 0 [pid 5975] close(4 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5974, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5980] close(3 [pid 5976] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5975] <... close resumed>) = 0 [pid 5068] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5975] mkdir("./file1", 000 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5975] <... mkdir resumed>) = 0 [ 142.600620][ T5976] overlayfs: failed to resolve './file0': -2 [ 142.607525][ T5978] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 142.617036][ T5980] loop2: detected capacity change from 0 to 8192 [ 142.625493][ T5978] REISERFS (device loop3): using ordered data mode [ 142.632242][ T5978] reiserfs: using flush barriers [pid 5068] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5975] mkdir("./bus", 000 [pid 5068] <... openat resumed>) = 3 [pid 5975] <... mkdir resumed>) = 0 [pid 5068] fstat(3, [pid 5980] <... close resumed>) = 0 [pid 5976] exit_group(0 [pid 5975] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5980] mkdir("./file0", 0777 [pid 5976] <... exit_group resumed>) = ? [pid 5068] lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./74/binderfs") = 0 [pid 5068] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5982] <... write resumed>) = 4194304 [pid 5982] munmap(0x7f7f7af80000, 4194304) = 0 [ 142.638894][ T5978] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 142.657325][ T5978] REISERFS (device loop3): checking transaction log (loop3) [ 142.666046][ T5975] overlayfs: upper fs needs to support d_type. [ 142.666478][ T5978] REISERFS (device loop3): Using r5 hash to sort names [ 142.672241][ T5975] overlayfs: upper fs does not support tmpfile. [ 142.679307][ T5978] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5980] <... mkdir resumed>) = 0 [pid 5978] <... mount resumed>) = 0 [pid 5976] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5976, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5980] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5978] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5982] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5978] <... openat resumed>) = 3 [pid 5982] <... openat resumed>) = 4 [pid 5073] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5982] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] chdir("./file0" [pid 5975] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = 0 [pid 5978] <... chdir resumed>) = 0 [pid 5975] creat("./file0/file0", 0202 [pid 5978] ioctl(4, LOOP_CLR_FD [pid 5975] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... openat resumed>) = 3 [pid 5068] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] <... ioctl resumed>) = 0 [pid 5975] exit_group(0 [pid 5073] fstat(3, [pid 5978] close(4 [pid 5975] <... exit_group resumed>) = ? [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] <... close resumed>) = 0 [pid 5975] +++ exited with 0 +++ [pid 5073] getdents64(3, [pid 5068] lstat("./74/file0", [pid 5978] mkdir("./file1", 000 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5975, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5978] <... mkdir resumed>) = 0 [pid 5073] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] mkdir("./bus", 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 142.701376][ T5978] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 142.711423][ T5975] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 142.722153][ T5975] overlayfs: failed to resolve './file0': -2 [ 142.725019][ T5982] loop4: detected capacity change from 0 to 8192 [ 142.735437][ T5980] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5978] <... mkdir resumed>) = 0 [pid 5073] lstat("./74/binderfs", [pid 5069] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5982] <... ioctl resumed>) = 0 [pid 5978] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] unlink("./74/binderfs" [pid 5069] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5982] close(3 [pid 5073] <... unlink resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 4 [pid 5073] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(3, [pid 5982] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(4, [pid 5982] mkdir("./file0", 0777 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5982] <... mkdir resumed>) = 0 [pid 5068] getdents64(4, [pid 5982] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] lstat("./74/binderfs", [pid 5068] close(4 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... close resumed>) = 0 [pid 5069] unlink("./74/binderfs" [pid 5068] rmdir("./74/file0" [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5069] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./74") = 0 [pid 5068] mkdir("./75", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5986 [ 142.760663][ T5980] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 142.777215][ T5978] overlayfs: upper fs needs to support d_type. [ 142.790808][ T5978] overlayfs: upper fs does not support tmpfile. ./strace-static-x86_64: Process 5986 attached [pid 5986] chdir("./75") = 0 [pid 5986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5986] setpgid(0, 0) = 0 [pid 5986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5986] write(3, "1000", 4) = 4 [pid 5986] close(3) = 0 [pid 5986] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5986] memfd_create("syzkaller", 0) = 3 [pid 5986] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 142.804514][ T5982] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 142.831233][ T5978] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 142.842758][ T5980] REISERFS (device loop2): using ordered data mode [ 142.849479][ T5980] reiserfs: using flush barriers [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] lstat("./74/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5978] creat("./file0/file0", 0202 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./74/file0", [ 142.856600][ T5980] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 142.877265][ T5978] overlayfs: failed to resolve './file0': -2 [ 142.883556][ T5982] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 142.892789][ T5982] REISERFS (device loop4): using ordered data mode [pid 5978] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] exit_group(0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5978] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5978] +++ exited with 0 +++ [pid 5073] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5978, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./73", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] openat(AT_FDCWD, "./73", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(4, [pid 5071] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] fstat(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(4 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5073] rmdir("./74/file0" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] umount2("./73/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] lstat("./73/binderfs", [pid 5069] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] unlink("./73/binderfs" [pid 5073] rmdir("./74" [pid 5071] <... unlink resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [ 142.911869][ T5982] reiserfs: using flush barriers [ 142.919001][ T5980] REISERFS (device loop2): checking transaction log (loop2) [ 142.926663][ T5982] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 142.945309][ T5982] REISERFS (device loop4): checking transaction log (loop4) [ 142.954701][ T5982] REISERFS (device loop4): Using r5 hash to sort names [pid 5071] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 4 [pid 5073] mkdir("./75", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5987 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5986] 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"..., 4194304./strace-static-x86_64: Process 5987 attached [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5987] chdir("./75" [pid 5069] getdents64(4, [pid 5987] <... chdir resumed>) = 0 [pid 5987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5987] <... prctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5987] setpgid(0, 0) = 0 [pid 5987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] rmdir("./74/file0" [pid 5987] <... openat resumed>) = 3 [pid 5987] write(3, "1000", 4) = 4 [pid 5069] <... rmdir resumed>) = 0 [pid 5987] close(3 [pid 5069] getdents64(3, [pid 5987] <... close resumed>) = 0 [pid 5987] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5987] <... symlink resumed>) = 0 [pid 5987] memfd_create("syzkaller", 0 [pid 5069] close(3 [pid 5987] <... memfd_create resumed>) = 3 [pid 5987] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... close resumed>) = 0 [pid 5987] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] rmdir("./74") = 0 [pid 5069] mkdir("./75", 0777 [pid 5982] <... mount resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5982] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5982] chdir("./file0" [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5982] <... chdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 142.963667][ T5982] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 142.987231][ T5982] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 142.989100][ T5980] REISERFS (device loop2): Using r5 hash to sort names [pid 5982] ioctl(4, LOOP_CLR_FD [pid 5069] close(3 [pid 5982] <... ioctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5982] close(4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5982] <... close resumed>) = 0 [pid 5982] mkdir("./file1", 000) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 5988 [pid 5982] mkdir("./bus", 000) = 0 ./strace-static-x86_64: Process 5988 attached [pid 5982] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5988] chdir("./75") = 0 [pid 5988] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5988] setpgid(0, 0) = 0 [pid 5986] <... write resumed>) = 4194304 [pid 5988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5986] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5988] <... openat resumed>) = 3 [pid 5986] <... munmap resumed>) = 0 [pid 5071] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5988] write(3, "1000", 4 [pid 5986] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5988] <... write resumed>) = 4 [pid 5988] close(3 [ 143.065480][ T5982] overlayfs: upper fs needs to support d_type. [ 143.073940][ T5982] overlayfs: upper fs does not support tmpfile. [ 143.086202][ T5980] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 143.088027][ T5982] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5986] <... openat resumed>) = 4 [pid 5071] lstat("./73/file0", [pid 5988] <... close resumed>) = 0 [pid 5986] ioctl(4, LOOP_SET_FD, 3 [pid 5982] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5988] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5982] creat("./file0/file0", 0202 [pid 5988] <... symlink resumed>) = 0 [pid 5982] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5988] memfd_create("syzkaller", 0 [pid 5986] <... ioctl resumed>) = 0 [pid 5980] <... mount resumed>) = 0 [pid 5071] umount2("./73/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5988] <... memfd_create resumed>) = 3 [pid 5986] close(3 [pid 5982] exit_group(0 [pid 5980] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5988] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5987] 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"..., 4194304 [pid 5986] <... close resumed>) = 0 [pid 5982] <... exit_group resumed>) = ? [pid 5980] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./73/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5988] <... mmap resumed>) = 0x7f7f7af80000 [pid 5986] mkdir("./file0", 0777 [pid 5982] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5982, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5986] <... mkdir resumed>) = 0 [pid 5980] chdir("./file0" [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5071] <... openat resumed>) = 4 [pid 5986] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5980] <... chdir resumed>) = 0 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5071] fstat(4, [pid 5980] ioctl(4, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5980] <... ioctl resumed>) = 0 [pid 5072] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, [pid 5980] close(4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5980] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5980] mkdir("./file1", 000 [pid 5072] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5980] <... mkdir resumed>) = 0 [pid 5072] fstat(3, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 143.110045][ T5982] overlayfs: failed to resolve './file0': -2 [ 143.118080][ T5980] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 143.127727][ T5986] loop0: detected capacity change from 0 to 8192 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./75/binderfs") = 0 [pid 5072] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(4 [pid 5980] mkdir("./bus", 000 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./73/file0" [pid 5980] <... mkdir resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5980] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./73") = 0 [pid 5071] mkdir("./74", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5988] 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"..., 4194304 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5990 ./strace-static-x86_64: Process 5990 attached [ 143.175427][ T5986] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 143.198669][ T5980] overlayfs: upper fs needs to support d_type. [pid 5990] chdir("./74" [pid 5988] <... write resumed>) = 4194304 [pid 5990] <... chdir resumed>) = 0 [pid 5990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5990] setpgid(0, 0) = 0 [pid 5990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5990] write(3, "1000", 4) = 4 [pid 5990] close(3) = 0 [pid 5990] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5990] memfd_create("syzkaller", 0) = 3 [pid 5990] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5988] munmap(0x7f7f7af80000, 4194304) = 0 [ 143.256643][ T5980] overlayfs: upper fs does not support tmpfile. [ 143.256895][ T5986] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 143.272765][ T5986] REISERFS (device loop0): using ordered data mode [ 143.279878][ T5986] reiserfs: using flush barriers [ 143.287611][ T5980] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5988] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5988] ioctl(4, LOOP_SET_FD, 3 [pid 5980] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5980] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5988] <... ioctl resumed>) = 0 [pid 5980] exit_group(0 [pid 5988] close(3 [pid 5980] <... exit_group resumed>) = ? [pid 5988] <... close resumed>) = 0 [pid 5980] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5980, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5988] mkdir("./file0", 0777 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5988] <... mkdir resumed>) = 0 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5988] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 143.293467][ T5986] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 143.296347][ T5980] overlayfs: failed to resolve './file0': -2 [ 143.323003][ T5988] loop1: detected capacity change from 0 to 8192 [pid 5070] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5990] 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"..., 4194304 [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./74/binderfs") = 0 [ 143.347565][ T5988] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 143.347632][ T5986] REISERFS (device loop0): checking transaction log (loop0) [pid 5070] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5987] <... write resumed>) = 4194304 [pid 5987] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5987] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5987] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... umount2 resumed>) = 0 [pid 5987] <... ioctl resumed>) = 0 [pid 5072] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5987] close(3) = 0 [ 143.393390][ T5988] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 143.416088][ T5986] REISERFS (device loop0): Using r5 hash to sort names [ 143.419699][ T5987] loop5: detected capacity change from 0 to 8192 [ 143.423674][ T5986] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5987] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5987] <... mkdir resumed>) = 0 [pid 5987] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] lstat("./75/file0", [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5990] <... write resumed>) = 4194304 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] lstat("./74/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./74/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./74") = 0 [pid 5070] mkdir("./75", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 143.459451][ T5988] REISERFS (device loop1): using ordered data mode [ 143.466555][ T5988] reiserfs: using flush barriers [ 143.470584][ T5987] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 143.477212][ T5986] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] close(3 [pid 5990] munmap(0x7f7f7af80000, 4194304 [pid 5072] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5993 [pid 5990] <... munmap resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, [pid 5990] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5990] <... openat resumed>) = 4 [pid 5072] getdents64(4, [pid 5990] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./75/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./75") = 0 [pid 5072] mkdir("./76", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5994 [ 143.503437][ T5988] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 143.504054][ T5987] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 143.528489][ T5990] loop3: detected capacity change from 0 to 8192 [ 143.529281][ T5987] REISERFS (device loop5): using ordered data mode [ 143.542120][ T5987] reiserfs: using flush barriers ./strace-static-x86_64: Process 5994 attached [pid 5990] <... ioctl resumed>) = 0 [pid 5986] <... mount resumed>) = 0 ./strace-static-x86_64: Process 5993 attached [pid 5994] chdir("./76" [pid 5990] close(3 [pid 5986] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5994] <... chdir resumed>) = 0 [pid 5993] chdir("./75" [pid 5990] <... close resumed>) = 0 [pid 5986] <... openat resumed>) = 3 [pid 5994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5993] <... chdir resumed>) = 0 [pid 5990] mkdir("./file0", 0777 [pid 5986] chdir("./file0" [pid 5994] <... prctl resumed>) = 0 [pid 5993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5990] <... mkdir resumed>) = 0 [pid 5986] <... chdir resumed>) = 0 [pid 5994] setpgid(0, 0 [pid 5993] <... prctl resumed>) = 0 [pid 5990] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5986] ioctl(4, LOOP_CLR_FD [pid 5994] <... setpgid resumed>) = 0 [pid 5993] setpgid(0, 0 [pid 5986] <... ioctl resumed>) = 0 [pid 5994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5993] <... setpgid resumed>) = 0 [pid 5986] close(4 [pid 5994] <... openat resumed>) = 3 [pid 5993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5986] <... close resumed>) = 0 [pid 5994] write(3, "1000", 4 [pid 5993] <... openat resumed>) = 3 [pid 5986] mkdir("./file1", 000 [pid 5994] <... write resumed>) = 4 [ 143.549481][ T5987] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 143.566279][ T5987] REISERFS (device loop5): checking transaction log (loop5) [ 143.575026][ T5988] REISERFS (device loop1): checking transaction log (loop1) [ 143.582910][ T5987] REISERFS (device loop5): Using r5 hash to sort names [ 143.591992][ T5987] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5993] write(3, "1000", 4 [pid 5986] <... mkdir resumed>) = 0 [pid 5994] close(3 [pid 5993] <... write resumed>) = 4 [pid 5986] mkdir("./bus", 000 [pid 5994] <... close resumed>) = 0 [pid 5993] close(3 [pid 5986] <... mkdir resumed>) = 0 [pid 5994] symlink("/dev/binderfs", "./binderfs" [pid 5993] <... close resumed>) = 0 [pid 5987] <... mount resumed>) = 0 [pid 5986] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5994] <... symlink resumed>) = 0 [pid 5993] symlink("/dev/binderfs", "./binderfs" [pid 5994] memfd_create("syzkaller", 0 [pid 5993] <... symlink resumed>) = 0 [pid 5994] <... memfd_create resumed>) = 3 [pid 5993] memfd_create("syzkaller", 0 [pid 5994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5993] <... memfd_create resumed>) = 3 [ 143.592298][ T5990] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 143.604867][ T5987] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 143.628609][ T5988] REISERFS (device loop1): Using r5 hash to sort names [ 143.635928][ T5988] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 143.636641][ T5986] overlayfs: upper fs needs to support d_type. [pid 5994] <... mmap resumed>) = 0x7f7f7af80000 [pid 5993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5987] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5987] chdir("./file0") = 0 [pid 5987] ioctl(4, LOOP_CLR_FD) = 0 [pid 5987] close(4) = 0 [pid 5987] mkdir("./file1", 000) = 0 [pid 5987] mkdir("./bus", 000) = 0 [pid 5987] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5993] <... mmap resumed>) = 0x7f7f7af80000 [ 143.648989][ T5988] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 143.658520][ T5987] overlayfs: upper fs needs to support d_type. [ 143.683151][ T5990] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 143.692813][ T5990] REISERFS (device loop3): using ordered data mode [ 143.699577][ T5990] reiserfs: using flush barriers [pid 5986] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5986] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 143.705958][ T5986] overlayfs: upper fs does not support tmpfile. [ 143.712791][ T5986] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 143.714900][ T5990] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 143.722167][ T5986] overlayfs: failed to resolve './file0': -2 [ 143.742968][ T5987] overlayfs: upper fs does not support tmpfile. [ 143.750263][ T5987] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5986] exit_group(0) = ? [pid 5988] <... mount resumed>) = 0 [pid 5987] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5986] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5986, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5988] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5987] creat("./file0/file0", 0202 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5994] 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"..., 4194304 [pid 5993] 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"..., 4194304 [pid 5988] <... openat resumed>) = 3 [pid 5987] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5988] chdir("./file0" [pid 5987] exit_group(0 [pid 5988] <... chdir resumed>) = 0 [pid 5987] <... exit_group resumed>) = ? [pid 5988] ioctl(4, LOOP_CLR_FD [pid 5987] +++ exited with 0 +++ [pid 5988] <... ioctl resumed>) = 0 [ 143.760067][ T5987] overlayfs: failed to resolve './file0': -2 [ 143.769134][ T5990] REISERFS (device loop3): checking transaction log (loop3) [ 143.779174][ T5990] REISERFS (device loop3): Using r5 hash to sort names [ 143.787156][ T5990] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 143.802212][ T5990] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5988] close(4) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5987, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5068] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5988] mkdir("./file1", 000) = 0 [pid 5988] mkdir("./bus", 000) = 0 [pid 5988] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5990] <... mount resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5990] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... openat resumed>) = 3 [pid 5990] <... openat resumed>) = 3 [pid 5990] chdir("./file0" [pid 5073] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] fstat(3, [pid 5990] <... chdir resumed>) = 0 [pid 5990] ioctl(4, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5990] <... ioctl resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] getdents64(3, [pid 5073] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5990] close(4 [pid 5073] fstat(3, [pid 5068] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5990] <... close resumed>) = 0 [pid 5990] mkdir("./file1", 000 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 5068] lstat("./75/binderfs", [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] unlink("./75/binderfs" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... unlink resumed>) = 0 [pid 5073] lstat("./75/binderfs", [pid 5068] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5990] <... mkdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5990] mkdir("./bus", 000) = 0 [pid 5073] unlink("./75/binderfs" [pid 5990] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... unlink resumed>) = 0 [ 143.824782][ T5988] overlayfs: upper fs needs to support d_type. [ 143.831000][ T5988] overlayfs: upper fs does not support tmpfile. [ 143.839728][ T5988] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 143.859670][ T5990] overlayfs: upper fs needs to support d_type. [pid 5073] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5993] <... write resumed>) = 4194304 [pid 5993] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5993] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 143.876617][ T5990] overlayfs: upper fs does not support tmpfile. [ 143.889440][ T5988] overlayfs: failed to resolve './file0': -2 [ 143.894500][ T5990] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5993] ioctl(4, LOOP_SET_FD, 3 [pid 5988] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5988] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5988] exit_group(0) = ? [pid 5988] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5988, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [ 143.921144][ T5993] loop2: detected capacity change from 0 to 8192 [pid 5993] <... ioctl resumed>) = 0 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5993] close(3) = 0 [pid 5993] mkdir("./file0", 0777) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5993] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5994] <... write resumed>) = 4194304 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./75/file0" [pid 5994] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./75/binderfs" [pid 5990] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5990] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5069] <... unlink resumed>) = 0 [pid 5990] exit_group(0 [pid 5069] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5990] <... exit_group resumed>) = ? [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./75" [pid 5994] <... munmap resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./76", 0777 [pid 5994] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5997 [ 143.947133][ T5990] overlayfs: failed to resolve './file0': -2 [ 143.963847][ T5993] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5994] <... openat resumed>) = 4 [pid 5990] +++ exited with 0 +++ [pid 5994] ioctl(4, LOOP_SET_FD, 3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5990, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5071] umount2("./74", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./74", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./75/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./75") = 0 [pid 5068] mkdir("./76", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 5998 ./strace-static-x86_64: Process 5998 attached [pid 5998] chdir("./76") = 0 [pid 5998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5998] setpgid(0, 0) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./74/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./74/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./74/binderfs" [pid 5998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5998] <... openat resumed>) = 3 [pid 5998] write(3, "1000", 4) = 4 [pid 5998] close(3) = 0 [pid 5998] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5998] memfd_create("syzkaller", 0) = 3 [pid 5998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 ./strace-static-x86_64: Process 5997 attached [pid 5997] chdir("./76") = 0 [pid 5997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 143.991410][ T5993] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 144.001680][ T5993] REISERFS (device loop2): using ordered data mode [ 144.009696][ T5993] reiserfs: using flush barriers [ 144.010574][ T5994] loop4: detected capacity change from 0 to 8192 [ 144.021855][ T5993] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5997] setpgid(0, 0) = 0 [pid 5997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5994] <... ioctl resumed>) = 0 [pid 5997] <... openat resumed>) = 3 [pid 5994] close(3 [pid 5997] write(3, "1000", 4 [pid 5994] <... close resumed>) = 0 [pid 5997] <... write resumed>) = 4 [pid 5994] mkdir("./file0", 0777 [pid 5997] close(3) = 0 [pid 5994] <... mkdir resumed>) = 0 [pid 5997] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5997] memfd_create("syzkaller", 0) = 3 [pid 5997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5994] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 144.122081][ T5994] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5998] 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"..., 4194304 [pid 5997] 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"..., 4194304) = 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 144.163688][ T5993] REISERFS (device loop2): checking transaction log (loop2) [ 144.197427][ T5993] REISERFS (device loop2): Using r5 hash to sort names [ 144.202265][ T5994] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5997] munmap(0x7f7f7af80000, 4194304 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./75/file0") = 0 [pid 5997] <... munmap resumed>) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./75") = 0 [pid 5997] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5069] mkdir("./76", 0777) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5071] lstat("./74/file0", [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 144.214632][ T5994] REISERFS (device loop4): using ordered data mode [ 144.222694][ T5994] reiserfs: using flush barriers [ 144.229971][ T5994] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 144.230017][ T5993] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] close(3 [pid 5998] <... write resumed>) = 4194304 [pid 5997] ioctl(4, LOOP_SET_FD, 3 [pid 5993] <... mount resumed>) = 0 [pid 5071] umount2("./74/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5998] munmap(0x7f7f7af80000, 4194304 [pid 5993] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5997] <... ioctl resumed>) = 0 [pid 5993] <... openat resumed>) = 3 [pid 5997] close(3 [pid 5993] chdir("./file0" [pid 5997] <... close resumed>) = 0 [pid 5993] <... chdir resumed>) = 0 [pid 5997] mkdir("./file0", 0777 [pid 5993] ioctl(4, LOOP_CLR_FD [pid 5998] <... munmap resumed>) = 0 [pid 5997] <... mkdir resumed>) = 0 [pid 5993] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5997] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5993] close(4) = 0 [pid 5993] mkdir("./file1", 000) = 0 [pid 5993] mkdir("./bus", 000) = 0 [pid 5993] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 144.259422][ T5993] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 144.269275][ T5994] REISERFS (device loop4): checking transaction log (loop4) [ 144.278445][ T5997] loop5: detected capacity change from 0 to 8192 [ 144.279729][ T5994] REISERFS (device loop4): Using r5 hash to sort names [ 144.294586][ T5994] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 144.302693][ T5998] loop0: detected capacity change from 0 to 8192 [pid 5998] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 6000 attached [pid 5071] openat(AT_FDCWD, "./74/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5998] <... ioctl resumed>) = 0 [pid 5994] <... mount resumed>) = 0 [pid 6000] chdir("./76" [pid 5998] close(3 [pid 5994] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... openat resumed>) = 4 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6000 [pid 6000] <... chdir resumed>) = 0 [pid 5998] <... close resumed>) = 0 [pid 5994] <... openat resumed>) = 3 [pid 5071] fstat(4, [pid 6000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5998] mkdir("./file0", 0777 [pid 5994] chdir("./file0" [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6000] <... prctl resumed>) = 0 [pid 5998] <... mkdir resumed>) = 0 [pid 5994] <... chdir resumed>) = 0 [pid 5071] getdents64(4, [pid 6000] setpgid(0, 0 [pid 5998] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5994] ioctl(4, LOOP_CLR_FD [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6000] <... setpgid resumed>) = 0 [pid 5994] <... ioctl resumed>) = 0 [pid 5071] getdents64(4, [pid 6000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5994] close(4 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6000] <... openat resumed>) = 3 [pid 5994] <... close resumed>) = 0 [pid 5071] close(4 [pid 6000] write(3, "1000", 4 [pid 5994] mkdir("./file1", 000 [pid 5071] <... close resumed>) = 0 [pid 6000] <... write resumed>) = 4 [pid 5994] <... mkdir resumed>) = 0 [pid 5071] rmdir("./74/file0" [pid 6000] close(3 [ 144.314536][ T5993] overlayfs: upper fs needs to support d_type. [ 144.320693][ T5994] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 144.330363][ T5997] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 144.343902][ T5993] overlayfs: upper fs does not support tmpfile. [ 144.351182][ T5998] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5994] mkdir("./bus", 000 [pid 5071] <... rmdir resumed>) = 0 [pid 6000] <... close resumed>) = 0 [pid 5994] <... mkdir resumed>) = 0 [pid 5071] getdents64(3, [pid 6000] symlink("/dev/binderfs", "./binderfs" [pid 5994] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6000] <... symlink resumed>) = 0 [pid 5071] close(3 [pid 6000] memfd_create("syzkaller", 0 [pid 5071] <... close resumed>) = 0 [pid 6000] <... memfd_create resumed>) = 3 [pid 5071] rmdir("./74" [pid 6000] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... rmdir resumed>) = 0 [pid 6000] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] mkdir("./75", 0777 [pid 5993] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 144.351201][ T5997] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 144.374006][ T5994] overlayfs: upper fs needs to support d_type. [ 144.374585][ T5993] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 144.380205][ T5994] overlayfs: upper fs does not support tmpfile. [ 144.388356][ T5993] overlayfs: failed to resolve './file0': -2 [ 144.400446][ T5998] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5071] close(3 [pid 5993] creat("./file0/file0", 0202 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6003 [pid 5993] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5993] exit_group(0./strace-static-x86_64: Process 6003 attached [pid 6003] chdir("./75") = 0 [pid 6003] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6003] setpgid(0, 0) = 0 [pid 6003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6003] write(3, "1000", 4) = 4 [pid 6003] close(3 [pid 5993] <... exit_group resumed>) = ? [pid 6003] <... close resumed>) = 0 [pid 6003] symlink("/dev/binderfs", "./binderfs") = 0 [ 144.410055][ T5998] REISERFS (device loop0): using ordered data mode [ 144.416969][ T5998] reiserfs: using flush barriers [ 144.424068][ T5998] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 144.441617][ T5994] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 144.450735][ T5994] overlayfs: failed to resolve './file0': -2 [ 144.456584][ T5997] REISERFS (device loop5): using ordered data mode [pid 6003] memfd_create("syzkaller", 0) = 3 [pid 5993] +++ exited with 0 +++ [pid 6003] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5993, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 6003] <... mmap resumed>) = 0x7f7f7af80000 [pid 5994] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5994] creat("./file0/file0", 0202 [pid 6000] 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"..., 4194304 [pid 5994] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5994] exit_group(0 [pid 5070] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./75/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./75/binderfs") = 0 [pid 5070] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5994] <... exit_group resumed>) = ? [pid 5994] +++ exited with 0 +++ [ 144.458944][ T5998] REISERFS (device loop0): checking transaction log (loop0) [ 144.466569][ T5997] reiserfs: using flush barriers [ 144.476544][ T5998] REISERFS (device loop0): Using r5 hash to sort names [ 144.487858][ T5998] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5994, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5072] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./76/binderfs" [pid 5998] <... mount resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5998] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5998] <... openat resumed>) = 3 [pid 5998] chdir("./file0") = 0 [pid 5998] ioctl(4, LOOP_CLR_FD) = 0 [pid 5998] close(4 [pid 6003] 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"..., 4194304 [pid 5998] <... close resumed>) = 0 [pid 5998] mkdir("./file1", 000) = 0 [pid 5998] mkdir("./bus", 000) = 0 [ 144.523693][ T5998] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 144.529451][ T5997] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5998] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6000] <... write resumed>) = 4194304 [pid 6000] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6000] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 144.571436][ T5998] overlayfs: upper fs needs to support d_type. [ 144.580596][ T5998] overlayfs: upper fs does not support tmpfile. [ 144.588725][ T5997] REISERFS (device loop5): checking transaction log (loop5) [pid 6000] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6000] close(3) = 0 [pid 6000] mkdir("./file0", 0777) = 0 [ 144.615802][ T6000] loop1: detected capacity change from 0 to 8192 [ 144.623947][ T5998] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 144.636659][ T5997] REISERFS (device loop5): Using r5 hash to sort names [ 144.652917][ T5998] overlayfs: failed to resolve './file0': -2 [pid 6000] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5997] <... mount resumed>) = 0 [pid 5998] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... umount2 resumed>) = 0 [pid 5998] creat("./file0/file0", 0202 [pid 5997] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5998] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5997] <... openat resumed>) = 3 [pid 5998] exit_group(0 [ 144.664464][ T6000] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 144.665093][ T5997] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 144.690666][ T5997] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 144.700783][ T6000] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5997] chdir("./file0" [pid 5998] <... exit_group resumed>) = ? [pid 5997] <... chdir resumed>) = 0 [pid 5998] +++ exited with 0 +++ [pid 5997] ioctl(4, LOOP_CLR_FD) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5998, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5997] close(4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5997] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5997] mkdir("./file1", 000) = 0 [pid 5072] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5997] mkdir("./bus", 000 [pid 5068] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5997] <... mkdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 144.710148][ T6000] REISERFS (device loop1): using ordered data mode [ 144.716718][ T6000] reiserfs: using flush barriers [ 144.722811][ T6000] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 144.739341][ T6000] REISERFS (device loop1): checking transaction log (loop1) [ 144.748377][ T6000] REISERFS (device loop1): Using r5 hash to sort names [ 144.754167][ T5997] overlayfs: upper fs needs to support d_type. [pid 5997] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6000] <... mount resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... openat resumed>) = 3 [pid 6000] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] lstat("./76/file0", [pid 5070] lstat("./75/file0", [pid 5068] fstat(3, [pid 6000] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6000] chdir("./file0" [pid 5072] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 6003] <... write resumed>) = 4194304 [pid 6000] <... chdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6003] munmap(0x7f7f7af80000, 4194304 [pid 6000] ioctl(4, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] <... munmap resumed>) = 0 [pid 6000] <... ioctl resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5068] lstat("./76/binderfs", [pid 6003] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6000] close(4 [pid 5072] fstat(4, [pid 5070] fstat(4, [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6003] <... openat resumed>) = 4 [pid 6000] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] unlink("./76/binderfs" [ 144.761096][ T6000] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 144.761749][ T5997] overlayfs: upper fs does not support tmpfile. [ 144.774115][ T6000] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 144.799767][ T5997] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 144.808187][ T5997] overlayfs: failed to resolve './file0': -2 [pid 6003] ioctl(4, LOOP_SET_FD, 3 [pid 6000] mkdir("./file1", 000 [pid 5072] getdents64(4, [pid 5070] getdents64(4, [pid 5068] <... unlink resumed>) = 0 [pid 6003] <... ioctl resumed>) = 0 [pid 6000] <... mkdir resumed>) = 0 [pid 5997] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6003] close(3 [pid 5997] creat("./file0/file0", 0202 [pid 6003] <... close resumed>) = 0 [pid 5997] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6003] mkdir("./file0", 0777 [pid 5997] exit_group(0 [pid 6003] <... mkdir resumed>) = 0 [pid 5997] <... exit_group resumed>) = ? [pid 6003] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5997] +++ exited with 0 +++ [pid 6000] mkdir("./bus", 000 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6000] <... mkdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5997, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5072] getdents64(4, [pid 5070] getdents64(4, [pid 6000] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 5072] close(4 [pid 5070] close(4 [pid 5072] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5072] rmdir("./76/file0" [pid 5070] rmdir("./75/file0" [pid 5073] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 5070] getdents64(3, [pid 5073] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5070] close(3 [pid 5073] fstat(3, [pid 5072] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./76" [pid 5070] rmdir("./75" [pid 5073] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] mkdir("./77", 0777 [pid 5070] mkdir("./76", 0777 [pid 5073] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... mkdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] lstat("./76/binderfs", [pid 5072] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] unlink("./76/binderfs" [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... unlink resumed>) = 0 [pid 5072] close(3 [pid 5070] close(3 [pid 5073] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6006 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6007 [ 144.818216][ T6003] loop3: detected capacity change from 0 to 8192 [ 144.839102][ T6000] overlayfs: upper fs needs to support d_type. [ 144.859480][ T6000] overlayfs: upper fs does not support tmpfile. ./strace-static-x86_64: Process 6007 attached ./strace-static-x86_64: Process 6006 attached [pid 6007] chdir("./76" [pid 6006] chdir("./77" [pid 6007] <... chdir resumed>) = 0 [pid 6007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6006] <... chdir resumed>) = 0 [pid 6007] <... prctl resumed>) = 0 [pid 6006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6007] setpgid(0, 0 [pid 6006] setpgid(0, 0 [pid 6007] <... setpgid resumed>) = 0 [pid 6006] <... setpgid resumed>) = 0 [pid 6007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6007] <... openat resumed>) = 3 [pid 6006] write(3, "1000", 4 [pid 6007] write(3, "1000", 4 [pid 6006] <... write resumed>) = 4 [pid 6007] <... write resumed>) = 4 [pid 6006] close(3 [pid 6007] close(3 [pid 6006] <... close resumed>) = 0 [pid 6007] <... close resumed>) = 0 [pid 6006] symlink("/dev/binderfs", "./binderfs" [pid 6007] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6007] memfd_create("syzkaller", 0 [pid 6006] <... symlink resumed>) = 0 [pid 6007] <... memfd_create resumed>) = 3 [pid 6006] memfd_create("syzkaller", 0 [pid 6007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6006] <... memfd_create resumed>) = 3 [pid 6007] <... mmap resumed>) = 0x7f7f7af80000 [pid 6006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 144.866357][ T6003] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 144.881710][ T6000] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 144.891019][ T6003] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = 0 [ 144.919456][ T6000] overlayfs: failed to resolve './file0': -2 [ 144.933802][ T6003] REISERFS (device loop3): using ordered data mode [ 144.940421][ T6003] reiserfs: using flush barriers [ 144.948425][ T6003] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5073] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6000] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6000] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6000] exit_group(0) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6000] +++ exited with 0 +++ [pid 5073] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6000, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5073] fstat(4, [pid 5069] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(4, [pid 5069] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... openat resumed>) = 3 [pid 5073] getdents64(4, [pid 5069] fstat(3, [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] close(4 [pid 5069] getdents64(3, [pid 5073] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] rmdir("./76/file0" [pid 6003] <... mount resumed>) = 0 [pid 5069] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... rmdir resumed>) = 0 [pid 6003] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 6003] <... openat resumed>) = 3 [pid 5069] lstat("./76/binderfs", [pid 6003] chdir("./file0" [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./76/file0", [pid 6003] <... chdir resumed>) = 0 [pid 5073] close(3 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6003] ioctl(4, LOOP_CLR_FD [pid 5073] <... close resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] unlink("./76/binderfs" [pid 5073] rmdir("./76" [pid 5068] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6003] <... ioctl resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6003] close(4 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6003] <... close resumed>) = 0 [pid 6003] mkdir("./file1", 000 [pid 5068] <... openat resumed>) = 4 [pid 5068] fstat(4, [pid 6003] <... mkdir resumed>) = 0 [pid 5073] mkdir("./77", 0777 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6003] mkdir("./bus", 000 [pid 5073] <... mkdir resumed>) = 0 [pid 5068] getdents64(4, [pid 6003] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6006] 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"..., 4194304 [pid 6003] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... openat resumed>) = 3 [ 144.965739][ T6003] REISERFS (device loop3): checking transaction log (loop3) [ 144.974202][ T6003] REISERFS (device loop3): Using r5 hash to sort names [ 144.982002][ T6003] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 144.999113][ T6003] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] getdents64(4, [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... close resumed>) = 0 [pid 5068] close(4 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... close resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6008 [pid 5068] rmdir("./76/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./76"./strace-static-x86_64: Process 6008 attached [pid 6008] chdir("./77") = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] mkdir("./77", 0777 [pid 6008] <... prctl resumed>) = 0 [pid 6008] setpgid(0, 0) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 6008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6008] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 6008] write(3, "1000", 4) = 4 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6008] close(3) = 0 [pid 6007] 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"..., 4194304 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6008] symlink("/dev/binderfs", "./binderfs" [pid 5068] close(3 [pid 6008] <... symlink resumed>) = 0 [pid 6008] memfd_create("syzkaller", 0 [pid 5068] <... close resumed>) = 0 [pid 6008] <... memfd_create resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6009 ./strace-static-x86_64: Process 6009 attached [ 145.055377][ T6003] overlayfs: upper fs needs to support d_type. [ 145.061996][ T6003] overlayfs: upper fs does not support tmpfile. [pid 6009] chdir("./77") = 0 [pid 6009] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6009] setpgid(0, 0) = 0 [pid 6009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6009] write(3, "1000", 4 [pid 5069] <... umount2 resumed>) = 0 [pid 6009] <... write resumed>) = 4 [pid 6009] close(3) = 0 [pid 6009] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6009] memfd_create("syzkaller", 0) = 3 [pid 6009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 6003] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6003] creat("./file0/file0", 0202 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6003] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] close(4) = 0 [pid 5069] rmdir("./76/file0" [pid 6003] exit_group(0 [pid 6006] <... write resumed>) = 4194304 [pid 6003] <... exit_group resumed>) = ? [pid 5069] <... rmdir resumed>) = 0 [pid 6008] 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"..., 4194304 [pid 6007] <... write resumed>) = 4194304 [pid 6006] munmap(0x7f7f7af80000, 4194304 [pid 6003] +++ exited with 0 +++ [pid 5069] getdents64(3, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6003, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./75", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 6007] munmap(0x7f7f7af80000, 4194304 [pid 5071] openat(AT_FDCWD, "./75", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] rmdir("./76" [pid 6006] <... munmap resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] fstat(3, [pid 6007] <... munmap resumed>) = 0 [pid 5069] mkdir("./77", 0777 [pid 6006] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 6007] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] getdents64(3, [ 145.135861][ T6003] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 145.165692][ T6003] overlayfs: failed to resolve './file0': -2 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6007] <... openat resumed>) = 4 [pid 6006] <... openat resumed>) = 4 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... openat resumed>) = 3 [pid 6007] ioctl(4, LOOP_SET_FD, 3 [pid 6006] ioctl(4, LOOP_SET_FD, 3 [pid 5071] umount2("./75/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] lstat("./75/binderfs", [pid 5069] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] unlink("./75/binderfs" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6010 ./strace-static-x86_64: Process 6010 attached [pid 6010] chdir("./77") = 0 [pid 6010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6010] setpgid(0, 0) = 0 [pid 6010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6010] write(3, "1000", 4) = 4 [pid 6010] close(3) = 0 [pid 6010] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6010] memfd_create("syzkaller", 0) = 3 [pid 6006] <... ioctl resumed>) = 0 [pid 6010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6006] close(3 [pid 6007] <... ioctl resumed>) = 0 [pid 6010] <... mmap resumed>) = 0x7f7f7af80000 [pid 6006] <... close resumed>) = 0 [pid 6009] 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"..., 4194304 [pid 6007] close(3 [pid 6006] mkdir("./file0", 0777 [pid 6007] <... close resumed>) = 0 [pid 6006] <... mkdir resumed>) = 0 [pid 6007] mkdir("./file0", 0777 [pid 6006] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6007] <... mkdir resumed>) = 0 [ 145.208733][ T6007] loop2: detected capacity change from 0 to 8192 [ 145.228479][ T6006] loop4: detected capacity change from 0 to 8192 [ 145.281879][ T6006] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 145.296208][ T6007] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6007] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./75/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./75/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./75/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6010] 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"..., 4194304 [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./75/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./75") = 0 [pid 5071] mkdir("./76", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6013 ./strace-static-x86_64: Process 6013 attached [pid 6008] <... write resumed>) = 4194304 [pid 6013] chdir("./76" [pid 6009] <... write resumed>) = 4194304 [ 145.324060][ T6006] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 145.336282][ T6007] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 145.369374][ T6007] REISERFS (device loop2): using ordered data mode [ 145.374467][ T6006] REISERFS (device loop4): using ordered data mode [pid 6008] munmap(0x7f7f7af80000, 4194304 [pid 6013] <... chdir resumed>) = 0 [pid 6009] munmap(0x7f7f7af80000, 4194304 [pid 6008] <... munmap resumed>) = 0 [pid 6013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6009] <... munmap resumed>) = 0 [pid 6008] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6013] <... prctl resumed>) = 0 [pid 6009] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6008] <... openat resumed>) = 4 [pid 6013] setpgid(0, 0 [pid 6009] <... openat resumed>) = 4 [pid 6008] ioctl(4, LOOP_SET_FD, 3 [pid 6013] <... setpgid resumed>) = 0 [pid 6009] ioctl(4, LOOP_SET_FD, 3 [pid 6013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6013] write(3, "1000", 4) = 4 [pid 6013] close(3) = 0 [pid 6013] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6013] memfd_create("syzkaller", 0) = 3 [pid 6013] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6008] <... ioctl resumed>) = 0 [pid 6008] close(3) = 0 [pid 6008] mkdir("./file0", 0777) = 0 [pid 6009] <... ioctl resumed>) = 0 [ 145.377543][ T6007] reiserfs: using flush barriers [ 145.384755][ T6006] reiserfs: using flush barriers [ 145.395495][ T6009] loop0: detected capacity change from 0 to 8192 [ 145.395884][ T6008] loop5: detected capacity change from 0 to 8192 [pid 6008] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6010] <... write resumed>) = 4194304 [pid 6009] close(3) = 0 [pid 6009] mkdir("./file0", 0777) = 0 [pid 6009] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6013] 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"..., 4194304 [ 145.420480][ T6007] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.437264][ T6006] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.442344][ T6009] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 145.466090][ T6006] REISERFS (device loop4): checking transaction log (loop4) [ 145.468626][ T6007] REISERFS (device loop2): checking transaction log (loop2) [pid 6010] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6010] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 145.475174][ T6008] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 145.482971][ T6009] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 145.505079][ T6007] REISERFS (device loop2): Using r5 hash to sort names [ 145.512135][ T6007] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 145.515770][ T6010] loop1: detected capacity change from 0 to 8192 [pid 6010] ioctl(4, LOOP_SET_FD, 3 [pid 6007] <... mount resumed>) = 0 [pid 6007] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6007] chdir("./file0") = 0 [pid 6010] <... ioctl resumed>) = 0 [pid 6010] close(3) = 0 [pid 6010] mkdir("./file0", 0777 [ 145.524959][ T6007] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 145.541132][ T6009] REISERFS (device loop0): using ordered data mode [ 145.541486][ T6008] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 145.558572][ T6006] REISERFS (device loop4): Using r5 hash to sort names [ 145.562368][ T6009] reiserfs: using flush barriers [ 145.565846][ T6006] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6007] ioctl(4, LOOP_CLR_FD [pid 6010] <... mkdir resumed>) = 0 [pid 6007] <... ioctl resumed>) = 0 [pid 6010] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6007] close(4) = 0 [pid 6007] mkdir("./file1", 000) = 0 [pid 6007] mkdir("./bus", 000) = 0 [ 145.583563][ T6008] REISERFS (device loop5): using ordered data mode [ 145.589778][ T6009] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.590344][ T6008] reiserfs: using flush barriers [ 145.611761][ T6006] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6007] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6006] <... mount resumed>) = 0 [pid 6013] <... write resumed>) = 4194304 [ 145.627318][ T6007] overlayfs: upper fs needs to support d_type. [ 145.640955][ T6009] REISERFS (device loop0): checking transaction log (loop0) [ 145.647050][ T6007] overlayfs: upper fs does not support tmpfile. [ 145.649358][ T6010] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 145.655618][ T6007] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6013] munmap(0x7f7f7af80000, 4194304 [pid 6006] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6013] <... munmap resumed>) = 0 [pid 6007] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6006] <... openat resumed>) = 3 [pid 6006] chdir("./file0") = 0 [pid 6006] ioctl(4, LOOP_CLR_FD) = 0 [pid 6006] close(4 [pid 6007] creat("./file0/file0", 0202 [pid 6006] <... close resumed>) = 0 [pid 6007] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6006] mkdir("./file1", 000 [pid 6007] exit_group(0 [pid 6006] <... mkdir resumed>) = 0 [pid 6007] <... exit_group resumed>) = ? [pid 6006] mkdir("./bus", 000 [ 145.673395][ T6008] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.676090][ T6007] overlayfs: failed to resolve './file0': -2 [ 145.698097][ T6010] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 145.707622][ T6010] REISERFS (device loop1): using ordered data mode [ 145.714316][ T6009] REISERFS (device loop0): Using r5 hash to sort names [ 145.721410][ T6009] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6013] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6007] +++ exited with 0 +++ [pid 6006] <... mkdir resumed>) = 0 [pid 6006] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6013] <... openat resumed>) = 4 [pid 6009] <... mount resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6007, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 6013] ioctl(4, LOOP_SET_FD, 3 [pid 5070] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6009] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6009] chdir("./file0" [pid 5070] <... openat resumed>) = 3 [pid 6009] <... chdir resumed>) = 0 [pid 5070] fstat(3, [pid 6009] ioctl(4, LOOP_CLR_FD [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6013] <... ioctl resumed>) = 0 [pid 6009] <... ioctl resumed>) = 0 [pid 5070] getdents64(3, [pid 6013] close(3 [pid 6009] close(4 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6009] <... close resumed>) = 0 [pid 5070] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] mkdir("./file1", 000 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 145.734121][ T6009] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 145.738452][ T6006] overlayfs: upper fs needs to support d_type. [ 145.743858][ T6008] REISERFS (device loop5): checking transaction log (loop5) [ 145.753552][ T6013] loop3: detected capacity change from 0 to 8192 [ 145.763794][ T6008] REISERFS (device loop5): Using r5 hash to sort names [ 145.770834][ T6008] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6013] <... close resumed>) = 0 [pid 6009] <... mkdir resumed>) = 0 [pid 5070] lstat("./76/binderfs", [pid 6013] mkdir("./file0", 0777 [pid 6009] mkdir("./bus", 000 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6008] <... mount resumed>) = 0 [pid 6008] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6009] <... mkdir resumed>) = 0 [pid 6008] <... openat resumed>) = 3 [pid 6008] chdir("./file0") = 0 [pid 6008] ioctl(4, LOOP_CLR_FD [pid 6013] <... mkdir resumed>) = 0 [pid 5070] unlink("./76/binderfs" [pid 6009] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6013] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6008] <... ioctl resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 6008] close(4) = 0 [pid 5070] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6008] mkdir("./file1", 000) = 0 [pid 6008] mkdir("./bus", 000) = 0 [ 145.784984][ T6008] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 145.793962][ T6006] overlayfs: upper fs does not support tmpfile. [ 145.797125][ T6010] reiserfs: using flush barriers [ 145.811316][ T6009] overlayfs: upper fs needs to support d_type. [ 145.813975][ T6006] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 145.824858][ T6010] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.841495][ T6008] overlayfs: upper fs needs to support d_type. [ 145.845842][ T6009] overlayfs: upper fs does not support tmpfile. [ 145.848226][ T6008] overlayfs: upper fs does not support tmpfile. [ 145.854982][ T6013] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 145.860980][ T6008] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6008] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on,") = -1 ENOENT (No such file or directory) [ 145.884250][ T6010] REISERFS (device loop1): checking transaction log (loop1) [ 145.884575][ T6006] overlayfs: failed to resolve './file0': -2 [ 145.892414][ T6010] REISERFS (device loop1): Using r5 hash to sort names [ 145.908298][ T6009] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 145.918579][ T6008] overlayfs: failed to resolve './file0': -2 [ 145.925909][ T6013] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 6008] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6008] exit_group(0) = ? [pid 6008] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6008, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5073] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6006] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./77/binderfs", [pid 6006] creat("./file0/file0", 0202 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6006] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] unlink("./77/binderfs" [pid 6006] exit_group(0 [pid 5073] <... unlink resumed>) = 0 [pid 6006] <... exit_group resumed>) = ? [pid 5073] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6006] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6006, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [ 145.936683][ T6013] REISERFS (device loop3): using ordered data mode [ 145.943203][ T6013] reiserfs: using flush barriers [ 145.963009][ T6013] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 145.964658][ T6009] overlayfs: failed to resolve './file0': -2 [pid 5072] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./77/binderfs") = 0 [pid 5072] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6010] <... mount resumed>) = 0 [pid 6009] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6010] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 145.989355][ T6010] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 146.006128][ T6010] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 146.015924][ T6013] REISERFS (device loop3): checking transaction log (loop3) [ 146.025448][ T6013] REISERFS (device loop3): Using r5 hash to sort names [pid 6009] creat("./file0/file0", 0202 [pid 6010] <... openat resumed>) = 3 [pid 6009] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6010] chdir("./file0" [pid 6009] exit_group(0 [pid 6010] <... chdir resumed>) = 0 [pid 6009] <... exit_group resumed>) = ? [pid 6010] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6009] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6009, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6010] <... ioctl resumed>) = 0 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6010] close(4 [pid 5068] <... restart_syscall resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6010] <... close resumed>) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./76/file0") = 0 [pid 5070] getdents64(3, [pid 6010] mkdir("./file1", 000 [pid 5068] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6010] <... mkdir resumed>) = 0 [pid 5070] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] mkdir("./bus", 000 [pid 5068] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6010] <... mkdir resumed>) = 0 [pid 5068] fstat(3, [pid 5070] rmdir("./76" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6010] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] getdents64(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] mkdir("./77", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./77/binderfs") = 0 [pid 5068] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6018 ./strace-static-x86_64: Process 6018 attached [pid 6018] chdir("./77") = 0 [pid 6018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6018] setpgid(0, 0) = 0 [pid 6018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 146.033676][ T6013] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 146.077216][ T6010] overlayfs: upper fs needs to support d_type. [pid 5073] <... umount2 resumed>) = 0 [pid 6018] write(3, "1000", 4) = 4 [pid 6018] close(3) = 0 [pid 6018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6018] memfd_create("syzkaller", 0) = 3 [pid 5073] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] lstat("./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./77/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5072] lstat("./77/file0", [pid 5073] rmdir("./77" [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] mkdir("./78", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... openat resumed>) = 4 [pid 5073] <... openat resumed>) = 3 [pid 5072] fstat(4, [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] getdents64(4, [pid 5073] close(3 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6019 [pid 5072] close(4) = 0 [pid 5072] rmdir("./77/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./77") = 0 [pid 5072] mkdir("./78", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 ./strace-static-x86_64: Process 6019 attached [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6019] chdir("./78") = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6020 [pid 6019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6019] setpgid(0, 0) = 0 [pid 6019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6019] write(3, "1000", 4) = 4 [pid 6019] close(3) = 0 [pid 6019] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6019] memfd_create("syzkaller", 0./strace-static-x86_64: Process 6020 attached ) = 3 [pid 6020] chdir("./78" [pid 6019] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6020] <... chdir resumed>) = 0 [pid 6019] <... mmap resumed>) = 0x7f7f7af80000 [pid 6020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6020] setpgid(0, 0) = 0 [pid 6020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6020] write(3, "1000", 4) = 4 [pid 6020] close(3) = 0 [ 146.107746][ T6010] overlayfs: upper fs does not support tmpfile. [ 146.128293][ T6013] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 146.150857][ T6010] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6020] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6013] <... mount resumed>) = 0 [pid 6020] memfd_create("syzkaller", 0 [pid 6018] 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"..., 4194304 [pid 6013] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6020] <... memfd_create resumed>) = 3 [pid 6013] <... openat resumed>) = 3 [pid 6020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6013] chdir("./file0" [pid 5068] <... umount2 resumed>) = 0 [pid 6013] <... chdir resumed>) = 0 [pid 6013] ioctl(4, LOOP_CLR_FD) = 0 [pid 6013] close(4) = 0 [pid 6013] mkdir("./file1", 000 [pid 5068] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6013] <... mkdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6013] mkdir("./bus", 000) = 0 [pid 5068] lstat("./77/file0", [pid 6010] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6013] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6010] creat("./file0/file0", 0202 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6010] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6010] exit_group(0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6010] <... exit_group resumed>) = ? [pid 5068] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6010] +++ exited with 0 +++ [pid 5068] <... openat resumed>) = 4 [pid 5068] fstat(4, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6010, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 146.196422][ T6010] overlayfs: failed to resolve './file0': -2 [ 146.224029][ T6013] overlayfs: upper fs needs to support d_type. [ 146.230292][ T6013] overlayfs: upper fs does not support tmpfile. [pid 5069] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(4, [pid 5069] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, [pid 5068] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 5068] close(4 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... close resumed>) = 0 [pid 5069] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./77/file0") = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 6019] 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"..., 4194304 [pid 6013] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] lstat("./77/binderfs", [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] rmdir("./77" [pid 5069] unlink("./77/binderfs" [pid 5068] <... rmdir resumed>) = 0 [pid 6013] creat("./file0/file0", 0202 [pid 5069] <... unlink resumed>) = 0 [pid 5068] mkdir("./78", 0777 [pid 6013] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6020] 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"..., 4194304 [pid 6013] exit_group(0 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6013] <... exit_group resumed>) = ? [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6013] +++ exited with 0 +++ [ 146.255663][ T6013] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 146.266646][ T6013] overlayfs: failed to resolve './file0': -2 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6021 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6013, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- ./strace-static-x86_64: Process 6021 attached [pid 6021] chdir("./78") = 0 [pid 5071] umount2("./76", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./76", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./76/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./76/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./76/binderfs" [pid 6021] <... prctl resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 6021] setpgid(0, 0 [pid 5071] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6021] <... setpgid resumed>) = 0 [pid 6021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6021] write(3, "1000", 4) = 4 [pid 6021] close(3) = 0 [pid 6021] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6021] memfd_create("syzkaller", 0) = 3 [pid 6021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6018] <... write resumed>) = 4194304 [pid 6018] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6018] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6018] ioctl(4, LOOP_SET_FD, 3 [pid 6021] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./76/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./76/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./76/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 6020] <... write resumed>) = 4194304 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... umount2 resumed>) = 0 [pid 5071] getdents64(4, [pid 5069] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6018] <... ioctl resumed>) = 0 [pid 6019] <... write resumed>) = 4194304 [pid 6018] close(3 [pid 5071] close(4 [pid 5069] lstat("./77/file0", [pid 6018] <... close resumed>) = 0 [pid 6018] mkdir("./file0", 0777) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6018] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] rmdir("./76/file0" [pid 5069] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6019] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(3, [pid 5069] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6019] <... munmap resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... openat resumed>) = 4 [pid 6019] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5071] close(3 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [ 146.417792][ T6018] loop2: detected capacity change from 0 to 8192 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] rmdir("./76" [pid 5069] getdents64(4, [pid 6019] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6021] <... write resumed>) = 4194304 [pid 6020] munmap(0x7f7f7af80000, 4194304 [pid 6019] <... ioctl resumed>) = 0 [pid 5071] mkdir("./77", 0777 [pid 5069] close(4 [pid 6021] munmap(0x7f7f7af80000, 4194304 [pid 6020] <... munmap resumed>) = 0 [pid 6019] close(3 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 6021] <... munmap resumed>) = 0 [pid 6020] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6019] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] rmdir("./77/file0" [pid 6021] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6020] <... openat resumed>) = 4 [pid 6019] mkdir("./file0", 0777 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... rmdir resumed>) = 0 [pid 6021] <... openat resumed>) = 4 [pid 6020] ioctl(4, LOOP_SET_FD, 3 [pid 6019] <... mkdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] getdents64(3, [pid 6021] ioctl(4, LOOP_SET_FD, 3 [pid 6020] <... ioctl resumed>) = 0 [ 146.467385][ T6019] loop5: detected capacity change from 0 to 8192 [ 146.474567][ T6018] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 146.488051][ T6018] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 146.496354][ T6020] loop4: detected capacity change from 0 to 8192 [ 146.498069][ T6018] REISERFS (device loop2): using ordered data mode [ 146.506473][ T6021] loop0: detected capacity change from 0 to 8192 [pid 6019] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6020] close(3 [pid 5071] close(3 [pid 5069] close(3 [pid 6021] <... ioctl resumed>) = 0 [pid 6020] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 6021] close(3) = 0 [pid 6021] mkdir("./file0", 0777) = 0 [pid 6021] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6020] mkdir("./file0", 0777 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... close resumed>) = 0 [ 146.510355][ T6018] reiserfs: using flush barriers [ 146.523022][ T6018] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 146.533448][ T6019] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 146.543997][ T6018] REISERFS (device loop2): checking transaction log (loop2) [pid 6020] <... mkdir resumed>) = 0 [pid 5069] rmdir("./77"./strace-static-x86_64: Process 6025 attached [pid 6020] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6025 [pid 5069] <... rmdir resumed>) = 0 [pid 6025] chdir("./77" [ 146.553159][ T6019] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 146.571004][ T6018] REISERFS (device loop2): Using r5 hash to sort names [ 146.572308][ T6019] REISERFS (device loop5): using ordered data mode [ 146.579212][ T6021] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 146.586605][ T6019] reiserfs: using flush barriers [ 146.599211][ T6018] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] mkdir("./78", 0777 [pid 6025] <... chdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 6025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6018] <... mount resumed>) = 0 [pid 6018] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6018] chdir("./file0") = 0 [pid 6018] ioctl(4, LOOP_CLR_FD) = 0 [pid 6018] close(4) = 0 [pid 6018] mkdir("./file1", 000) = 0 [pid 6018] mkdir("./bus", 000) = 0 [pid 6018] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6025] <... prctl resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [ 146.605439][ T6021] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 146.617099][ T6018] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 146.625518][ T6019] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 146.650766][ T6020] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6025] setpgid(0, 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6025] <... setpgid resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] close(3 [pid 6025] <... openat resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 6025] write(3, "1000", 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6025] <... write resumed>) = 4 ./strace-static-x86_64: Process 6027 attached [pid 6027] chdir("./78") = 0 [pid 6027] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6027] setpgid(0, 0) = 0 [pid 6027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6027] write(3, "1000", 4) = 4 [pid 6027] close(3) = 0 [pid 6027] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6027] memfd_create("syzkaller", 0) = 3 [pid 6027] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6025] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6027 [pid 6025] <... close resumed>) = 0 [pid 6025] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6025] memfd_create("syzkaller", 0) = 3 [pid 6025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 146.651436][ T6018] overlayfs: upper fs needs to support d_type. [ 146.664376][ T6021] REISERFS (device loop0): using ordered data mode [ 146.680373][ T6019] REISERFS (device loop5): checking transaction log (loop5) [ 146.681395][ T6020] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 146.711653][ T6021] reiserfs: using flush barriers [ 146.718825][ T6019] REISERFS (device loop5): Using r5 hash to sort names [ 146.726058][ T6021] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 146.743147][ T6019] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 146.750392][ T6021] REISERFS (device loop0): checking transaction log (loop0) [pid 6027] 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"..., 4194304 [ 146.763451][ T6018] overlayfs: upper fs does not support tmpfile. [ 146.764722][ T6021] REISERFS (device loop0): Using r5 hash to sort names [ 146.770215][ T6018] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 146.776967][ T6021] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 146.796027][ T6020] REISERFS (device loop4): using ordered data mode [ 146.802664][ T6020] reiserfs: using flush barriers [ 146.803595][ T6019] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6025] 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"..., 4194304 [pid 6019] <... mount resumed>) = 0 [pid 6019] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6019] chdir("./file0") = 0 [pid 6019] ioctl(4, LOOP_CLR_FD) = 0 [pid 6019] close(4) = 0 [pid 6019] mkdir("./file1", 000) = 0 [pid 6019] mkdir("./bus", 000) = 0 [ 146.817327][ T6021] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 146.833963][ T6020] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 146.862772][ T6018] overlayfs: failed to resolve './file0': -2 [pid 6019] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6021] <... mount resumed>) = 0 [pid 6021] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6021] chdir("./file0") = 0 [pid 6021] ioctl(4, LOOP_CLR_FD) = 0 [pid 6021] close(4) = 0 [pid 6021] mkdir("./file1", 000) = 0 [pid 6021] mkdir("./bus", 000) = 0 [ 146.865468][ T6019] overlayfs: upper fs needs to support d_type. [pid 6021] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6018] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6018] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6018] exit_group(0) = ? [pid 6018] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6018, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 6027] <... write resumed>) = 4194304 [pid 6025] <... write resumed>) = 4194304 [ 146.899431][ T6021] overlayfs: upper fs needs to support d_type. [ 146.915737][ T6019] overlayfs: upper fs does not support tmpfile. [ 146.918236][ T6020] REISERFS (device loop4): checking transaction log (loop4) [ 146.922545][ T6019] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 146.930010][ T6021] overlayfs: upper fs does not support tmpfile. [pid 6027] munmap(0x7f7f7af80000, 4194304 [pid 6025] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6027] <... munmap resumed>) = 0 [pid 5070] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6027] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6025] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6027] <... openat resumed>) = 4 [pid 6027] ioctl(4, LOOP_SET_FD, 3 [pid 6025] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 3 [pid 6027] <... ioctl resumed>) = 0 [pid 6025] ioctl(4, LOOP_SET_FD, 3 [pid 5070] fstat(3, [pid 6019] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6019] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6019] exit_group(0) = ? [pid 6019] +++ exited with 0 +++ [pid 6027] close(3 [pid 6025] <... ioctl resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6019, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6027] <... close resumed>) = 0 [ 146.946051][ T6020] REISERFS (device loop4): Using r5 hash to sort names [ 146.954954][ T6027] loop1: detected capacity change from 0 to 8192 [ 146.961140][ T6019] overlayfs: failed to resolve './file0': -2 [ 146.962002][ T6021] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 146.968612][ T6020] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 146.974520][ T6025] loop3: detected capacity change from 0 to 8192 [ 146.992687][ T6021] overlayfs: failed to resolve './file0': -2 [pid 6027] mkdir("./file0", 0777) = 0 [pid 6027] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6025] close(3) = 0 [pid 6025] mkdir("./file0", 0777) = 0 [pid 6025] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5073] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./78/binderfs") = 0 [pid 5070] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6021] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6020] <... mount resumed>) = 0 [pid 5070] lstat("./77/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./77/binderfs") = 0 [pid 6020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6020] <... openat resumed>) = 3 [pid 6020] chdir("./file0") = 0 [pid 6020] ioctl(4, LOOP_CLR_FD) = 0 [pid 6020] close(4) = 0 [pid 6021] creat("./file0/file0", 0202 [pid 6020] mkdir("./file1", 000 [pid 6021] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6020] <... mkdir resumed>) = 0 [pid 6021] exit_group(0 [pid 6020] mkdir("./bus", 000 [pid 6021] <... exit_group resumed>) = ? [pid 6020] <... mkdir resumed>) = 0 [pid 6021] +++ exited with 0 +++ [pid 6020] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6021, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5068] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./78/binderfs") = 0 [ 146.993865][ T6020] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 147.012815][ T6027] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 147.038416][ T6025] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 147.043615][ T6027] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 147.062109][ T6027] REISERFS (device loop1): using ordered data mode [ 147.067040][ T6020] overlayfs: upper fs needs to support d_type. [ 147.069851][ T6027] reiserfs: using flush barriers [ 147.084507][ T6025] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 147.084574][ T6027] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 147.094739][ T6025] REISERFS (device loop3): using ordered data mode [ 147.116800][ T6025] reiserfs: using flush barriers [ 147.123537][ T6025] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 147.140577][ T6025] REISERFS (device loop3): checking transaction log (loop3) [ 147.148200][ T6020] overlayfs: upper fs does not support tmpfile. [ 147.152349][ T6025] REISERFS (device loop3): Using r5 hash to sort names [ 147.155383][ T6020] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 147.170401][ T6020] overlayfs: failed to resolve './file0': -2 [ 147.176996][ T6027] REISERFS (device loop1): checking transaction log (loop1) [pid 5068] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6025] <... mount resumed>) = 0 [pid 6025] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6025] chdir("./file0") = 0 [pid 6025] ioctl(4, LOOP_CLR_FD [pid 6020] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6025] <... ioctl resumed>) = 0 [pid 6020] creat("./file0/file0", 0202 [pid 6025] close(4 [pid 6020] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6025] <... close resumed>) = 0 [pid 6025] mkdir("./file1", 000 [pid 6020] exit_group(0 [pid 6025] <... mkdir resumed>) = 0 [pid 6020] <... exit_group resumed>) = ? [pid 6025] mkdir("./bus", 000 [pid 6020] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6020, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6025] <... mkdir resumed>) = 0 [ 147.190170][ T6025] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 147.190632][ T6027] REISERFS (device loop1): Using r5 hash to sort names [ 147.202964][ T6025] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6025] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./78/binderfs") = 0 [pid 5072] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./78/file0") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5068] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./78/file0", [pid 5073] <... close resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./78" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] fstat(4, [pid 5073] mkdir("./79", 0777 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 5073] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5068] <... close resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./78/file0" [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... rmdir resumed>) = 0 [pid 5073] close(3 [pid 5068] getdents64(3, [pid 5073] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./78") = 0 [pid 5068] mkdir("./79", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6030 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6031 [ 147.261484][ T6025] overlayfs: upper fs needs to support d_type. [ 147.289096][ T6025] overlayfs: upper fs does not support tmpfile. ./strace-static-x86_64: Process 6030 attached ./strace-static-x86_64: Process 6031 attached [pid 6030] chdir("./79" [pid 5070] <... umount2 resumed>) = 0 [pid 6030] <... chdir resumed>) = 0 [pid 6030] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6030] setpgid(0, 0) = 0 [pid 6031] chdir("./79" [pid 6030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6031] <... chdir resumed>) = 0 [pid 6030] <... openat resumed>) = 3 [pid 6030] write(3, "1000", 4 [pid 6031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6030] <... write resumed>) = 4 [pid 6031] <... prctl resumed>) = 0 [pid 6030] close(3 [pid 6031] setpgid(0, 0 [pid 6030] <... close resumed>) = 0 [pid 5070] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6031] <... setpgid resumed>) = 0 [pid 6030] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6030] <... symlink resumed>) = 0 [pid 6030] memfd_create("syzkaller", 0) = 3 [pid 6031] <... openat resumed>) = 3 [pid 6030] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6031] write(3, "1000", 4 [pid 6030] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] lstat("./77/file0", [pid 6031] <... write resumed>) = 4 [pid 6031] close(3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6031] <... close resumed>) = 0 [pid 5070] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6031] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6031] <... symlink resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6031] memfd_create("syzkaller", 0 [pid 5070] fstat(4, [pid 6031] <... memfd_create resumed>) = 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6031] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] getdents64(4, [pid 6031] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./77/file0") = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [ 147.339301][ T6027] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 147.343814][ T6025] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] rmdir("./77") = 0 [pid 5070] mkdir("./78", 0777 [pid 5072] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... mkdir resumed>) = 0 [pid 5072] lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] <... openat resumed>) = 4 [pid 5072] fstat(4, [pid 5070] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5072] getdents64(4, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5070] close(3 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5070] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./78/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./78") = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] mkdir("./79", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6025] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6033 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6032 ./strace-static-x86_64: Process 6033 attached [pid 6025] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6025] exit_group(0) = ? [pid 6033] chdir("./79") = 0 [pid 6033] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6033] setpgid(0, 0) = 0 [pid 6033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6025] +++ exited with 0 +++ [pid 6033] <... openat resumed>) = 3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6025, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6033] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6032 attached [pid 6033] close(3) = 0 [pid 6032] chdir("./78" [pid 6031] 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"..., 4194304 [pid 6027] <... mount resumed>) = 0 [pid 6030] 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"..., 4194304 [pid 6033] symlink("/dev/binderfs", "./binderfs" [pid 6032] <... chdir resumed>) = 0 [pid 6027] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6033] <... symlink resumed>) = 0 [pid 6032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6027] <... openat resumed>) = 3 [pid 6033] memfd_create("syzkaller", 0 [pid 6027] chdir("./file0" [pid 5071] umount2("./77", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6033] <... memfd_create resumed>) = 3 [pid 6032] <... prctl resumed>) = 0 [pid 6027] <... chdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6033] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6032] setpgid(0, 0 [ 147.410182][ T6025] overlayfs: failed to resolve './file0': -2 [ 147.414742][ T6027] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6027] ioctl(4, LOOP_CLR_FD [pid 5071] openat(AT_FDCWD, "./77", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6033] <... mmap resumed>) = 0x7f7f7af80000 [pid 6032] <... setpgid resumed>) = 0 [pid 6027] <... ioctl resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6027] close(4 [pid 6032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] fstat(3, [pid 6032] <... openat resumed>) = 3 [pid 6027] <... close resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6032] write(3, "1000", 4 [pid 6027] mkdir("./file1", 000 [pid 5071] getdents64(3, [pid 6032] <... write resumed>) = 4 [pid 6027] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6032] close(3 [pid 6027] mkdir("./bus", 000 [pid 5071] umount2("./77/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6032] <... close resumed>) = 0 [pid 6027] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6032] symlink("/dev/binderfs", "./binderfs" [pid 6027] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] lstat("./77/binderfs", [pid 6032] <... symlink resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./77/binderfs" [pid 6032] memfd_create("syzkaller", 0 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6032] <... memfd_create resumed>) = 3 [pid 6032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 147.498917][ T6027] overlayfs: upper fs needs to support d_type. [ 147.514714][ T6027] overlayfs: upper fs does not support tmpfile. [pid 6032] 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"..., 4194304 [pid 6031] <... write resumed>) = 4194304 [pid 6031] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6031] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6031] ioctl(4, LOOP_SET_FD, 3 [pid 6033] 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"..., 4194304 [pid 6031] <... ioctl resumed>) = 0 [pid 6031] close(3) = 0 [pid 6031] mkdir("./file0", 0777) = 0 [pid 6031] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = 0 [ 147.567168][ T6027] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 147.583780][ T6031] loop5: detected capacity change from 0 to 8192 [ 147.599989][ T6027] overlayfs: failed to resolve './file0': -2 [pid 5071] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./77/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./77/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./77/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./77/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./77") = 0 [pid 5071] mkdir("./78", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 6027] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6027] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6027] exit_group(0) = ? [pid 6027] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6027, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 6032] <... write resumed>) = 4194304 [pid 6030] <... write resumed>) = 4194304 [pid 5071] <... close resumed>) = 0 [pid 6030] munmap(0x7f7f7af80000, 4194304 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6030] <... munmap resumed>) = 0 [pid 5069] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6030] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6030] <... openat resumed>) = 4 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6035 [pid 5069] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6030] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... openat resumed>) = 3 [ 147.634466][ T6031] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 147.653976][ T6031] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5069] fstat(3, ./strace-static-x86_64: Process 6035 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6035] chdir("./78" [pid 6030] <... ioctl resumed>) = 0 [pid 5069] getdents64(3, [pid 6035] <... chdir resumed>) = 0 [pid 6030] close(3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6035] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6030] <... close resumed>) = 0 [pid 6033] <... write resumed>) = 4194304 [pid 5069] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6032] munmap(0x7f7f7af80000, 4194304 [pid 6035] <... prctl resumed>) = 0 [pid 6030] mkdir("./file0", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6035] setpgid(0, 0 [pid 6030] <... mkdir resumed>) = 0 [pid 5069] lstat("./78/binderfs", [pid 6035] <... setpgid resumed>) = 0 [pid 6030] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] unlink("./78/binderfs" [pid 6035] <... openat resumed>) = 3 [pid 5069] <... unlink resumed>) = 0 [pid 6035] write(3, "1000", 4 [pid 5069] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6035] <... write resumed>) = 4 [pid 6033] munmap(0x7f7f7af80000, 4194304 [pid 6032] <... munmap resumed>) = 0 [pid 6035] close(3 [pid 6033] <... munmap resumed>) = 0 [pid 6032] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6033] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6032] <... openat resumed>) = 4 [pid 6035] <... close resumed>) = 0 [pid 6033] <... openat resumed>) = 4 [pid 6032] ioctl(4, LOOP_SET_FD, 3 [pid 6035] symlink("/dev/binderfs", "./binderfs" [ 147.680476][ T6030] loop0: detected capacity change from 0 to 8192 [ 147.681233][ T6031] REISERFS (device loop5): using ordered data mode [ 147.696778][ T6031] reiserfs: using flush barriers [ 147.711568][ T6032] loop2: detected capacity change from 0 to 8192 [ 147.711669][ T6030] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6033] ioctl(4, LOOP_SET_FD, 3 [pid 6035] <... symlink resumed>) = 0 [pid 6033] <... ioctl resumed>) = 0 [pid 6035] memfd_create("syzkaller", 0 [pid 6032] <... ioctl resumed>) = 0 [pid 6035] <... memfd_create resumed>) = 3 [pid 6032] close(3 [pid 6035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6032] <... close resumed>) = 0 [pid 6035] <... mmap resumed>) = 0x7f7f7af80000 [pid 6032] mkdir("./file0", 0777 [pid 6033] close(3 [pid 6032] <... mkdir resumed>) = 0 [pid 6033] <... close resumed>) = 0 [ 147.719513][ T6033] loop4: detected capacity change from 0 to 8192 [ 147.732215][ T6031] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 147.737545][ T6030] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 147.763442][ T6030] REISERFS (device loop0): using ordered data mode [ 147.770114][ T6030] reiserfs: using flush barriers [pid 6032] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6033] mkdir("./file0", 0777) = 0 [ 147.777656][ T6030] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 147.795632][ T6030] REISERFS (device loop0): checking transaction log (loop0) [ 147.805261][ T6031] REISERFS (device loop5): checking transaction log (loop5) [ 147.805307][ T6030] REISERFS (device loop0): Using r5 hash to sort names [ 147.810225][ T6032] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6033] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6030] <... mount resumed>) = 0 [pid 6030] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6030] chdir("./file0" [pid 5069] <... umount2 resumed>) = 0 [pid 6030] <... chdir resumed>) = 0 [pid 6030] ioctl(4, LOOP_CLR_FD) = 0 [pid 6030] close(4) = 0 [pid 6030] mkdir("./file1", 000) = 0 [pid 6030] mkdir("./bus", 000) = 0 [ 147.812857][ T6030] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 147.845295][ T6030] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 147.857581][ T6031] REISERFS (device loop5): Using r5 hash to sort names [ 147.865085][ T6031] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6030] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6031] <... mount resumed>) = 0 [pid 6031] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6031] chdir("./file0") = 0 [pid 6031] ioctl(4, LOOP_CLR_FD) = 0 [pid 6031] close(4 [pid 6035] 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"..., 4194304 [pid 6031] <... close resumed>) = 0 [ 147.878710][ T6031] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 147.887933][ T6032] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 147.897527][ T6033] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 147.897842][ T6030] overlayfs: upper fs needs to support d_type. [ 147.917405][ T6030] overlayfs: upper fs does not support tmpfile. [ 147.924405][ T6030] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6031] mkdir("./file1", 000 [pid 5069] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6031] <... mkdir resumed>) = 0 [pid 6031] mkdir("./bus", 000) = 0 [pid 6031] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./78/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 147.934237][ T6033] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 147.934525][ T6030] overlayfs: failed to resolve './file0': -2 [ 147.943524][ T6033] REISERFS (device loop4): using ordered data mode [ 147.952581][ T6031] overlayfs: upper fs needs to support d_type. [ 147.956396][ T6033] reiserfs: using flush barriers [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./78/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./78") = 0 [pid 5069] mkdir("./79", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6039 attached , child_tidptr=0x5555559fa5d0) = 6039 [pid 6039] chdir("./79") = 0 [pid 6039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 147.970286][ T6033] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 147.973825][ T6031] overlayfs: upper fs does not support tmpfile. [ 147.987185][ T6033] REISERFS (device loop4): checking transaction log (loop4) [ 148.002198][ T6032] REISERFS (device loop2): using ordered data mode [ 148.009607][ T6032] reiserfs: using flush barriers [ 148.015725][ T6033] REISERFS (device loop4): Using r5 hash to sort names [ 148.022780][ T6033] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6039] setpgid(0, 0) = 0 [pid 6030] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6030] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6030] exit_group(0) = ? [pid 6030] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6030, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5068] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6039] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] write(3, "1000", 4 [pid 6033] <... mount resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6039] <... write resumed>) = 4 [pid 6033] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... openat resumed>) = 3 [pid 6039] close(3 [pid 6033] <... openat resumed>) = 3 [pid 5068] fstat(3, [pid 6039] <... close resumed>) = 0 [pid 6033] chdir("./file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 148.038891][ T6032] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 148.056059][ T6033] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 148.066624][ T6032] REISERFS (device loop2): checking transaction log (loop2) [ 148.066817][ T6031] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] getdents64(3, [pid 6039] symlink("/dev/binderfs", "./binderfs" [pid 6033] <... chdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./79/binderfs") = 0 [pid 5068] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6039] <... symlink resumed>) = 0 [pid 6033] ioctl(4, LOOP_CLR_FD [pid 6039] memfd_create("syzkaller", 0 [pid 6033] <... ioctl resumed>) = 0 [pid 6039] <... memfd_create resumed>) = 3 [pid 6033] close(4 [pid 6039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6035] <... write resumed>) = 4194304 [pid 6033] <... close resumed>) = 0 [pid 6032] <... mount resumed>) = 0 [pid 6039] <... mmap resumed>) = 0x7f7f7af80000 [pid 6035] munmap(0x7f7f7af80000, 4194304 [pid 6033] mkdir("./file1", 000 [pid 6032] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6031] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6035] <... munmap resumed>) = 0 [pid 6033] <... mkdir resumed>) = 0 [pid 6032] <... openat resumed>) = 3 [pid 6031] creat("./file0/file0", 0202 [pid 6032] chdir("./file0" [pid 6035] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6033] mkdir("./bus", 000 [pid 6032] <... chdir resumed>) = 0 [pid 6031] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6035] <... openat resumed>) = 4 [pid 6033] <... mkdir resumed>) = 0 [pid 6032] ioctl(4, LOOP_CLR_FD [pid 6031] exit_group(0 [pid 6032] <... ioctl resumed>) = 0 [pid 6033] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6031] <... exit_group resumed>) = ? [ 148.085980][ T6032] REISERFS (device loop2): Using r5 hash to sort names [ 148.093867][ T6032] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 148.108170][ T6032] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 148.116916][ T6031] overlayfs: failed to resolve './file0': -2 [pid 6035] ioctl(4, LOOP_SET_FD, 3 [pid 6032] close(4 [pid 6031] +++ exited with 0 +++ [pid 6032] <... close resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6031, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 6032] mkdir("./file1", 000) = 0 [pid 6035] <... ioctl resumed>) = 0 [pid 6032] mkdir("./bus", 000 [pid 5073] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6032] <... mkdir resumed>) = 0 [pid 6035] close(3 [pid 6032] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./79/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./79/binderfs" [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 148.163005][ T6035] loop3: detected capacity change from 0 to 8192 [ 148.170708][ T6033] overlayfs: upper fs needs to support d_type. [ 148.184772][ T6033] overlayfs: upper fs does not support tmpfile. [ 148.193667][ T6032] overlayfs: upper fs needs to support d_type. [ 148.206548][ T6032] overlayfs: upper fs does not support tmpfile. [pid 5068] getdents64(4, [pid 6039] 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"..., 4194304 [pid 6035] <... close resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 6035] mkdir("./file0", 0777 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./79/file0" [pid 6035] <... mkdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 6035] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./79") = 0 [pid 5068] mkdir("./80", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [ 148.214994][ T6033] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 148.236255][ T6032] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 148.250642][ T6033] overlayfs: failed to resolve './file0': -2 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6041 ./strace-static-x86_64: Process 6041 attached [pid 6041] chdir("./80") = 0 [pid 6041] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6033] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6041] setpgid(0, 0 [pid 6033] creat("./file0/file0", 0202 [pid 6041] <... setpgid resumed>) = 0 [pid 6041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6033] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6041] write(3, "1000", 4 [pid 6033] exit_group(0 [pid 6041] <... write resumed>) = 4 [pid 6033] <... exit_group resumed>) = ? [pid 6041] close(3 [pid 6033] +++ exited with 0 +++ [pid 5073] <... umount2 resumed>) = 0 [pid 6041] <... close resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6033, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 6041] symlink("/dev/binderfs", "./binderfs" [pid 5073] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6041] <... symlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6041] memfd_create("syzkaller", 0 [pid 5073] lstat("./79/file0", [pid 5072] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6041] <... memfd_create resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 148.258107][ T6035] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 148.278635][ T6032] overlayfs: failed to resolve './file0': -2 [ 148.297182][ T6035] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 6041] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6032] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6041] <... mmap resumed>) = 0x7f7f7af80000 [pid 6032] creat("./file0/file0", 0202 [pid 5073] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 6039] <... write resumed>) = 4194304 [pid 6032] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 6039] munmap(0x7f7f7af80000, 4194304 [pid 6032] exit_group(0 [pid 5073] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6039] <... munmap resumed>) = 0 [pid 6032] <... exit_group resumed>) = ? [pid 5073] <... openat resumed>) = 4 [pid 6039] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6032] +++ exited with 0 +++ [pid 5073] fstat(4, [pid 6039] <... openat resumed>) = 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6039] ioctl(4, LOOP_SET_FD, 3 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6032, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 6039] <... ioctl resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... restart_syscall resumed>) = 0 [ 148.321527][ T6035] REISERFS (device loop3): using ordered data mode [ 148.329138][ T6035] reiserfs: using flush barriers [ 148.339878][ T6035] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 148.345378][ T6039] loop1: detected capacity change from 0 to 8192 [ 148.363830][ T6035] REISERFS (device loop3): checking transaction log (loop3) [pid 6039] close(3 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6039] <... close resumed>) = 0 [pid 5073] close(4 [pid 5072] lstat("./79/binderfs", [pid 6039] mkdir("./file0", 0777 [pid 5073] <... close resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6039] <... mkdir resumed>) = 0 [pid 5073] rmdir("./79/file0" [pid 6039] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./79") = 0 [pid 5073] mkdir("./80", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] unlink("./79/binderfs" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6043 [pid 5070] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./78/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./78/binderfs"./strace-static-x86_64: Process 6043 attached ) = 0 [pid 6035] <... mount resumed>) = 0 [pid 6035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6035] chdir("./file0") = 0 [pid 6035] ioctl(4, LOOP_CLR_FD) = 0 [ 148.373513][ T6035] REISERFS (device loop3): Using r5 hash to sort names [ 148.387098][ T6035] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 148.404379][ T6035] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6035] close(4) = 0 [pid 6035] mkdir("./file1", 000) = 0 [pid 6043] chdir("./80" [pid 5070] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6035] mkdir("./bus", 000 [pid 6043] <... chdir resumed>) = 0 [pid 6043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6041] 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"..., 4194304 [pid 6043] setpgid(0, 0) = 0 [pid 6043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6043] write(3, "1000", 4) = 4 [pid 6043] close(3) = 0 [pid 6043] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6035] <... mkdir resumed>) = 0 [pid 6043] memfd_create("syzkaller", 0) = 3 [ 148.414513][ T6039] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6035] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6043] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 148.451383][ T6039] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 148.477166][ T6035] overlayfs: upper fs needs to support d_type. [pid 6043] 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"..., 4194304 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./79/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./79") = 0 [ 148.497263][ T6039] REISERFS (device loop1): using ordered data mode [ 148.504002][ T6039] reiserfs: using flush barriers [ 148.514898][ T6039] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 148.535238][ T6035] overlayfs: upper fs does not support tmpfile. [pid 5072] mkdir("./80", 0777 [pid 6043] <... write resumed>) = 4194304 [pid 6043] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... mkdir resumed>) = 0 [pid 6043] <... munmap resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 6043] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6043] <... openat resumed>) = 4 [pid 5072] <... openat resumed>) = 3 [pid 6043] ioctl(4, LOOP_SET_FD, 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6041] <... write resumed>) = 4194304 [pid 6035] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] lstat("./78/file0", [pid 6041] munmap(0x7f7f7af80000, 4194304 [pid 6035] creat("./file0/file0", 0202 [pid 5072] close(3 [pid 6043] <... ioctl resumed>) = 0 [pid 6041] <... munmap resumed>) = 0 [pid 6035] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6043] close(3 [pid 6041] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6035] exit_group(0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6043] <... close resumed>) = 0 [pid 6041] <... openat resumed>) = 4 [pid 6035] <... exit_group resumed>) = ? [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6043] mkdir("./file0", 0777 [ 148.555081][ T6039] REISERFS (device loop1): checking transaction log (loop1) [ 148.568400][ T6035] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 148.578038][ T6035] overlayfs: failed to resolve './file0': -2 [ 148.584161][ T6043] loop5: detected capacity change from 0 to 8192 [pid 6041] ioctl(4, LOOP_SET_FD, 3 [pid 6035] +++ exited with 0 +++ [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6044 [pid 5070] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6043] <... mkdir resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 6043] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6035, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5070] fstat(4, [pid 6041] <... ioctl resumed>) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6041] close(3 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5070] getdents64(4, [pid 6041] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6041] mkdir("./file0", 0777 [pid 5070] getdents64(4, [pid 6041] <... mkdir resumed>) = 0 [pid 5071] umount2("./78", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6041] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4 [pid 5071] openat(AT_FDCWD, "./78", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] rmdir("./78/file0" [pid 5071] fstat(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 5071] getdents64(3, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] close(3 [pid 5071] umount2("./78/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./78" [pid 5071] lstat("./78/binderfs", [pid 5070] <... rmdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 148.603052][ T6041] loop0: detected capacity change from 0 to 8192 [ 148.609721][ T6039] REISERFS (device loop1): Using r5 hash to sort names [ 148.623543][ T6039] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 148.623793][ T6043] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] mkdir("./79", 0777 [pid 5071] unlink("./78/binderfs" [pid 5070] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 6044 attached [pid 5071] <... unlink resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 6044] chdir("./80" [pid 6039] <... mount resumed>) = 0 [pid 6044] <... chdir resumed>) = 0 [pid 6039] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6039] <... openat resumed>) = 3 [pid 6044] <... prctl resumed>) = 0 [pid 6039] chdir("./file0" [pid 6044] setpgid(0, 0 [pid 6039] <... chdir resumed>) = 0 [pid 6044] <... setpgid resumed>) = 0 [pid 6039] ioctl(4, LOOP_CLR_FD [pid 6044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6039] <... ioctl resumed>) = 0 [pid 6044] <... openat resumed>) = 3 [ 148.636719][ T6039] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 148.661280][ T6041] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 148.661748][ T6043] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 148.675383][ T6041] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 148.694351][ T6041] REISERFS (device loop0): using ordered data mode [ 148.700872][ T6041] reiserfs: using flush barriers [pid 6039] close(4 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6044] write(3, "1000", 4 [pid 6039] <... close resumed>) = 0 [pid 6044] <... write resumed>) = 4 [pid 6039] mkdir("./file1", 000 [pid 5070] close(3 [pid 6044] close(3 [pid 6039] <... mkdir resumed>) = 0 [pid 6044] <... close resumed>) = 0 [pid 6039] mkdir("./bus", 000 [pid 6044] symlink("/dev/binderfs", "./binderfs" [pid 6039] <... mkdir resumed>) = 0 [pid 6044] <... symlink resumed>) = 0 [ 148.707498][ T6043] REISERFS (device loop5): using ordered data mode [ 148.714300][ T6043] reiserfs: using flush barriers [ 148.723539][ T6043] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 148.739699][ T6041] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6039] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6044] memfd_create("syzkaller", 0 [pid 5070] <... close resumed>) = 0 [pid 6044] <... memfd_create resumed>) = 3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6044] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6047 ./strace-static-x86_64: Process 6047 attached [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] chdir("./79") = 0 [pid 6047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6047] setpgid(0, 0) = 0 [ 148.750699][ T6039] overlayfs: upper fs needs to support d_type. [ 148.772325][ T6039] overlayfs: upper fs does not support tmpfile. [ 148.780244][ T6039] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 148.786980][ T6041] REISERFS (device loop0): checking transaction log (loop0) [ 148.789220][ T6039] overlayfs: failed to resolve './file0': -2 [pid 6047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] lstat("./78/file0", [pid 6047] <... openat resumed>) = 3 [pid 6039] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6047] write(3, "1000", 4 [pid 6039] creat("./file0/file0", 0202 [pid 5071] umount2("./78/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6047] <... write resumed>) = 4 [pid 6039] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] close(3 [pid 6039] exit_group(0 [pid 5071] openat(AT_FDCWD, "./78/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6047] <... close resumed>) = 0 [pid 6039] <... exit_group resumed>) = ? [pid 6047] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... openat resumed>) = 4 [pid 6047] <... symlink resumed>) = 0 [pid 6039] +++ exited with 0 +++ [pid 5071] fstat(4, [pid 6047] memfd_create("syzkaller", 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6039, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6047] <... memfd_create resumed>) = 3 [pid 5071] getdents64(4, [pid 6047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, [pid 5071] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./79/binderfs", [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6043] <... mount resumed>) = 0 [pid 5071] close(4 [pid 5069] unlink("./79/binderfs" [pid 6043] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... close resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 6043] <... openat resumed>) = 3 [pid 5071] rmdir("./78/file0" [ 148.801571][ T6043] REISERFS (device loop5): checking transaction log (loop5) [ 148.811610][ T6043] REISERFS (device loop5): Using r5 hash to sort names [ 148.828112][ T6043] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 148.842934][ T6043] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 6043] chdir("./file0" [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 6043] <... chdir resumed>) = 0 [pid 6043] ioctl(4, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 6043] <... ioctl resumed>) = 0 [pid 5071] rmdir("./78" [pid 6043] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 6043] <... close resumed>) = 0 [pid 5071] mkdir("./79", 0777 [pid 6043] mkdir("./file1", 000 [pid 6044] 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"..., 4194304 [pid 6043] <... mkdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6043] mkdir("./bus", 000 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6043] <... mkdir resumed>) = 0 [pid 6043] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [ 148.860341][ T6041] REISERFS (device loop0): Using r5 hash to sort names [ 148.876603][ T6041] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 148.898193][ T6043] overlayfs: upper fs needs to support d_type. [pid 6047] 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"..., 4194304 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6048 ./strace-static-x86_64: Process 6048 attached [pid 6048] chdir("./79") = 0 [pid 6048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6048] setpgid(0, 0) = 0 [pid 6041] <... mount resumed>) = 0 [pid 6048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6041] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6048] <... openat resumed>) = 3 [pid 6048] write(3, "1000", 4 [pid 6041] <... openat resumed>) = 3 [pid 6048] <... write resumed>) = 4 [pid 6041] chdir("./file0" [pid 6048] close(3 [pid 6041] <... chdir resumed>) = 0 [ 148.907335][ T6043] overlayfs: upper fs does not support tmpfile. [ 148.915248][ T6041] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 148.933150][ T6043] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6048] <... close resumed>) = 0 [pid 6048] symlink("/dev/binderfs", "./binderfs" [pid 6041] ioctl(4, LOOP_CLR_FD [pid 6048] <... symlink resumed>) = 0 [pid 6041] <... ioctl resumed>) = 0 [pid 6048] memfd_create("syzkaller", 0 [pid 6041] close(4 [pid 6048] <... memfd_create resumed>) = 3 [pid 6041] <... close resumed>) = 0 [pid 6048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6041] mkdir("./file1", 000 [pid 6048] <... mmap resumed>) = 0x7f7f7af80000 [pid 6041] <... mkdir resumed>) = 0 [pid 6041] mkdir("./bus", 000 [pid 6044] <... write resumed>) = 4194304 [pid 6043] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6041] <... mkdir resumed>) = 0 [pid 6044] munmap(0x7f7f7af80000, 4194304 [pid 6043] creat("./file0/file0", 0202 [pid 6041] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6043] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6044] <... munmap resumed>) = 0 [pid 6043] exit_group(0 [ 148.955275][ T6043] overlayfs: failed to resolve './file0': -2 [pid 6044] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6043] <... exit_group resumed>) = ? [pid 6044] <... openat resumed>) = 4 [pid 6043] +++ exited with 0 +++ [pid 6044] ioctl(4, LOOP_SET_FD, 3 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6043, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5073] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 6048] 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"..., 4194304 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./80/binderfs", [pid 6044] <... ioctl resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./80/binderfs" [pid 6044] close(3 [pid 5073] <... unlink resumed>) = 0 [pid 6044] <... close resumed>) = 0 [pid 5073] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6044] mkdir("./file0", 0777) = 0 [ 149.000215][ T6041] overlayfs: upper fs needs to support d_type. [ 149.009233][ T6044] loop4: detected capacity change from 0 to 8192 [ 149.023745][ T6041] overlayfs: upper fs does not support tmpfile. [pid 6044] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6047] <... write resumed>) = 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./79/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6041] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6041] creat("./file0/file0", 0202 [pid 5069] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6041] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6041] exit_group(0 [pid 5069] <... openat resumed>) = 4 [ 149.047814][ T6044] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 149.061598][ T6041] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.075108][ T6041] overlayfs: failed to resolve './file0': -2 [pid 6047] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6047] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6047] ioctl(4, LOOP_SET_FD, 3 [pid 6041] <... exit_group resumed>) = ? [pid 5069] fstat(4, [pid 6048] <... write resumed>) = 4194304 [pid 6041] +++ exited with 0 +++ [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6048] munmap(0x7f7f7af80000, 4194304 [pid 5069] getdents64(4, [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6041, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 6048] <... munmap resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] getdents64(4, [pid 6048] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6048] ioctl(4, LOOP_SET_FD, 3 [pid 5069] close(4) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./79/file0" [pid 5068] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] fstat(3, [pid 5069] close(3 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5068] getdents64(3, [pid 5069] rmdir("./79") = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] mkdir("./80", 0777) = 0 [pid 5068] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6047] <... ioctl resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 6047] close(3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] lstat("./80/binderfs", [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6047] <... close resumed>) = 0 [pid 5069] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6047] mkdir("./file0", 0777 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6050 [ 149.095334][ T6044] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 149.110116][ T6044] REISERFS (device loop4): using ordered data mode [ 149.122516][ T6047] loop2: detected capacity change from 0 to 8192 [ 149.122552][ T6048] loop3: detected capacity change from 0 to 8192 [pid 6047] <... mkdir resumed>) = 0 [pid 5068] unlink("./80/binderfs" [pid 6047] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6048] <... ioctl resumed>) = 0 [pid 6048] close(3) = 0 [pid 6048] mkdir("./file0", 0777) = 0 [pid 6048] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 6050 attached [pid 6050] chdir("./80" [pid 5073] fstat(4, [pid 6050] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] getdents64(4, [pid 6050] <... prctl resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6050] setpgid(0, 0 [pid 5073] getdents64(4, [pid 6050] <... setpgid resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [ 149.152966][ T6044] reiserfs: using flush barriers [ 149.163928][ T6047] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 149.177947][ T6044] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 149.188683][ T6047] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 6050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] close(4 [pid 6050] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 6050] write(3, "1000", 4 [pid 5073] rmdir("./80/file0" [pid 6050] <... write resumed>) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 6050] close(3 [pid 5073] getdents64(3, [pid 6050] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6050] symlink("/dev/binderfs", "./binderfs" [pid 5073] close(3 [pid 6050] <... symlink resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6050] memfd_create("syzkaller", 0 [pid 5073] rmdir("./80" [pid 6050] <... memfd_create resumed>) = 3 [pid 5073] <... rmdir resumed>) = 0 [pid 6050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] mkdir("./81", 0777 [pid 6050] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6053 ./strace-static-x86_64: Process 6053 attached [pid 6053] chdir("./81") = 0 [pid 6053] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6053] setpgid(0, 0) = 0 [pid 6053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 149.208036][ T6048] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 149.227257][ T6048] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 149.237873][ T6047] REISERFS (device loop2): using ordered data mode [ 149.246298][ T6044] REISERFS (device loop4): checking transaction log (loop4) [pid 6053] write(3, "1000", 4) = 4 [pid 6053] close(3) = 0 [pid 6053] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6053] memfd_create("syzkaller", 0) = 3 [pid 6053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 149.260032][ T6047] reiserfs: using flush barriers [ 149.266860][ T6048] REISERFS (device loop3): using ordered data mode [ 149.273598][ T6048] reiserfs: using flush barriers [ 149.280154][ T6048] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 149.295021][ T6044] REISERFS (device loop4): Using r5 hash to sort names [pid 6050] 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"..., 4194304 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./80/file0", [pid 6050] <... write resumed>) = 4194304 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6050] munmap(0x7f7f7af80000, 4194304 [pid 5068] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] <... munmap resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 149.318272][ T6044] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 149.335349][ T6047] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 149.343421][ T6048] REISERFS (device loop3): checking transaction log (loop3) [ 149.361235][ T6048] REISERFS (device loop3): Using r5 hash to sort names [pid 6050] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6050] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 4 [pid 6050] ioctl(4, LOOP_SET_FD, 3 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6053] 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"..., 4194304 [pid 6050] <... ioctl resumed>) = 0 [pid 6044] <... mount resumed>) = 0 [pid 5068] getdents64(4, [pid 6050] close(3 [pid 6044] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6050] <... close resumed>) = 0 [pid 6044] <... openat resumed>) = 3 [pid 6050] mkdir("./file0", 0777 [pid 6044] chdir("./file0" [pid 5068] getdents64(4, [pid 6050] <... mkdir resumed>) = 0 [pid 6044] <... chdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6044] ioctl(4, LOOP_CLR_FD [pid 5068] close(4 [pid 6050] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6044] <... ioctl resumed>) = 0 [pid 6044] close(4 [pid 5068] <... close resumed>) = 0 [ 149.369018][ T6044] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 149.380299][ T6050] loop1: detected capacity change from 0 to 8192 [ 149.387123][ T6048] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 149.394023][ T6047] REISERFS (device loop2): checking transaction log (loop2) [ 149.400692][ T6048] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6053] <... write resumed>) = 4194304 [pid 6048] <... mount resumed>) = 0 [pid 6044] <... close resumed>) = 0 [pid 5068] rmdir("./80/file0" [pid 6053] munmap(0x7f7f7af80000, 4194304 [pid 6048] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6044] mkdir("./file1", 000 [pid 5068] <... rmdir resumed>) = 0 [pid 6053] <... munmap resumed>) = 0 [pid 6048] <... openat resumed>) = 3 [pid 6044] <... mkdir resumed>) = 0 [pid 5068] getdents64(3, [pid 6053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6048] chdir("./file0" [pid 6044] mkdir("./bus", 000 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6053] <... openat resumed>) = 4 [pid 6048] <... chdir resumed>) = 0 [pid 6044] <... mkdir resumed>) = 0 [pid 5068] close(3 [pid 6053] ioctl(4, LOOP_SET_FD, 3 [ 149.435921][ T6047] REISERFS (device loop2): Using r5 hash to sort names [ 149.442990][ T6047] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 149.463999][ T6050] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 149.467722][ T6047] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6048] ioctl(4, LOOP_CLR_FD [pid 6044] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... close resumed>) = 0 [pid 6048] <... ioctl resumed>) = 0 [pid 5068] rmdir("./80" [pid 6048] close(4 [pid 6047] <... mount resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6048] <... close resumed>) = 0 [pid 6047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6053] <... ioctl resumed>) = 0 [pid 5068] mkdir("./81", 0777 [pid 6048] mkdir("./file1", 000 [pid 5068] <... mkdir resumed>) = 0 [pid 6048] <... mkdir resumed>) = 0 [ 149.479286][ T6053] loop5: detected capacity change from 0 to 8192 [ 149.495890][ T6050] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 149.496292][ T6044] overlayfs: upper fs needs to support d_type. [ 149.505437][ T6050] REISERFS (device loop1): using ordered data mode [ 149.518082][ T6050] reiserfs: using flush barriers [ 149.523705][ T6044] overlayfs: upper fs does not support tmpfile. [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6048] mkdir("./bus", 000 [pid 5068] <... openat resumed>) = 3 [pid 6053] close(3 [pid 6048] <... mkdir resumed>) = 0 [pid 6047] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6053] <... close resumed>) = 0 [pid 6048] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6053] mkdir("./file0", 0777 [pid 6047] chdir("./file0" [pid 6053] <... mkdir resumed>) = 0 [pid 6047] <... chdir resumed>) = 0 [pid 6053] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6047] ioctl(4, LOOP_CLR_FD) = 0 [pid 6044] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] close(3 [pid 6047] close(4 [pid 6044] creat("./file0/file0", 0202 [pid 6047] <... close resumed>) = 0 [pid 6044] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6047] mkdir("./file1", 000 [pid 6044] exit_group(0 [pid 6047] <... mkdir resumed>) = 0 [pid 6044] <... exit_group resumed>) = ? [pid 6047] mkdir("./bus", 000 [pid 6044] +++ exited with 0 +++ [pid 6047] <... mkdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6044, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 6047] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./80/binderfs") = 0 [pid 5072] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [ 149.530512][ T6044] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.539555][ T6044] overlayfs: failed to resolve './file0': -2 [ 149.542313][ T6048] overlayfs: upper fs needs to support d_type. [ 149.552212][ T6050] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 149.566223][ T6048] overlayfs: upper fs does not support tmpfile. [ 149.569291][ T6047] overlayfs: upper fs needs to support d_type. [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6056 ./strace-static-x86_64: Process 6056 attached [pid 6056] chdir("./81" [pid 6048] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6056] <... chdir resumed>) = 0 [pid 6048] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6048] exit_group(0) = ? [pid 6056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6048] +++ exited with 0 +++ [ 149.576295][ T6048] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.588062][ T6047] overlayfs: upper fs does not support tmpfile. [ 149.592134][ T6048] overlayfs: failed to resolve './file0': -2 [ 149.598591][ T6047] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.604579][ T6050] REISERFS (device loop1): checking transaction log (loop1) [ 149.617852][ T6053] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6056] <... prctl resumed>) = 0 [pid 6056] setpgid(0, 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6048, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 6056] <... setpgid resumed>) = 0 [pid 5071] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6056] write(3, "1000", 4 [pid 5071] <... openat resumed>) = 3 [pid 6056] <... write resumed>) = 4 [pid 5071] fstat(3, [pid 6056] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6056] <... close resumed>) = 0 [pid 6056] symlink("/dev/binderfs", "./binderfs" [pid 5071] getdents64(3, [pid 6056] <... symlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6056] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] <... memfd_create resumed>) = 3 [pid 5071] lstat("./79/binderfs", [pid 6056] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./79/binderfs") = 0 [ 149.636041][ T6053] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 149.649659][ T6050] REISERFS (device loop1): Using r5 hash to sort names [ 149.665285][ T6050] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 149.680795][ T6053] REISERFS (device loop5): using ordered data mode [pid 5071] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] <... mount resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] lstat("./80/file0", [pid 6050] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6050] chdir("./file0" [pid 5072] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6050] <... chdir resumed>) = 0 [pid 6050] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6050] <... ioctl resumed>) = 0 [pid 6050] close(4 [pid 5072] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6056] 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"..., 4194304 [pid 6050] <... close resumed>) = 0 [pid 6047] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... openat resumed>) = 4 [pid 6050] mkdir("./file1", 000 [pid 5072] fstat(4, [pid 6050] <... mkdir resumed>) = 0 [pid 6050] mkdir("./bus", 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6047] creat("./file0/file0", 0202 [pid 6050] <... mkdir resumed>) = 0 [pid 5072] getdents64(4, [pid 6050] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6047] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [ 149.703921][ T6050] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 149.713923][ T6047] overlayfs: failed to resolve './file0': -2 [ 149.714077][ T6053] reiserfs: using flush barriers [ 149.727753][ T6053] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6047] exit_group(0 [pid 5072] close(4 [pid 6047] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./80/file0") = 0 [pid 5072] getdents64(3, [pid 6047] +++ exited with 0 +++ [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6047, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] close(3) = 0 [pid 5072] rmdir("./80" [pid 5070] umount2("./79", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] mkdir("./81", 0777 [pid 5070] openat(AT_FDCWD, "./79", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... mkdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... umount2 resumed>) = 0 [pid 5070] fstat(3, [pid 5072] <... openat resumed>) = 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] getdents64(3, [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] close(3 [pid 5070] umount2("./79/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] lstat("./79/binderfs", [pid 6056] <... write resumed>) = 4194304 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6056] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6057 [pid 5070] unlink("./79/binderfs") = 0 [pid 5070] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6057 attached [pid 6056] <... munmap resumed>) = 0 [ 149.772314][ T6050] overlayfs: upper fs needs to support d_type. [ 149.805813][ T6053] REISERFS (device loop5): checking transaction log (loop5) [ 149.815133][ T6050] overlayfs: upper fs does not support tmpfile. [pid 5071] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6057] chdir("./81" [pid 6056] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6057] <... chdir resumed>) = 0 [pid 6057] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6057] setpgid(0, 0 [pid 6056] <... openat resumed>) = 4 [pid 5071] lstat("./79/file0", [pid 6057] <... setpgid resumed>) = 0 [pid 6056] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 149.828593][ T6050] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.838138][ T6050] overlayfs: failed to resolve './file0': -2 [ 149.844295][ T6053] REISERFS (device loop5): Using r5 hash to sort names [ 149.852527][ T6053] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 149.865798][ T6053] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6056] <... ioctl resumed>) = 0 [pid 5071] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6057] write(3, "1000", 4 [pid 6056] close(3 [pid 6053] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6056] <... close resumed>) = 0 [pid 6053] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6056] mkdir("./file0", 0777 [pid 6053] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 4 [pid 6057] <... write resumed>) = 4 [pid 6057] close(3 [pid 6056] <... mkdir resumed>) = 0 [pid 6053] chdir("./file0" [pid 5071] fstat(4, [pid 6057] <... close resumed>) = 0 [pid 6056] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6053] <... chdir resumed>) = 0 [pid 6057] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6057] <... symlink resumed>) = 0 [pid 6053] ioctl(4, LOOP_CLR_FD [pid 5071] getdents64(4, [pid 6057] memfd_create("syzkaller", 0 [pid 6053] <... ioctl resumed>) = 0 [pid 6057] <... memfd_create resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6057] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6053] close(4 [pid 5071] getdents64(4, [pid 6057] <... mmap resumed>) = 0x7f7f7af80000 [pid 6053] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 6050] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6050] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6050] exit_group(0) = ? [pid 6053] mkdir("./file1", 000 [pid 5071] close(4 [pid 5070] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6053] <... mkdir resumed>) = 0 [pid 6050] +++ exited with 0 +++ [pid 5071] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6053] mkdir("./bus", 000 [pid 5071] rmdir("./79/file0" [pid 5070] lstat("./79/file0", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6050, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6053] <... mkdir resumed>) = 0 [pid 6053] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] getdents64(3, [ 149.875322][ T6056] loop0: detected capacity change from 0 to 8192 [ 149.892357][ T6056] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 149.907682][ T6056] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 149.918961][ T6056] REISERFS (device loop0): using ordered data mode [pid 5070] umount2("./79/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./79/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] close(3 [pid 5070] <... openat resumed>) = 4 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./79" [pid 5070] fstat(4, [pid 5069] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] mkdir("./80", 0777 [pid 5070] getdents64(4, [pid 5069] <... openat resumed>) = 3 [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] fstat(3, [pid 5071] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 6057] 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"..., 4194304 [ 149.927947][ T6056] reiserfs: using flush barriers [ 149.935171][ T6053] overlayfs: upper fs needs to support d_type. [ 149.941502][ T6053] overlayfs: upper fs does not support tmpfile. [ 149.954325][ T6056] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5070] close(4 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] close(3 [pid 5070] rmdir("./79/file0" [pid 5069] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, [pid 5069] lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] unlink("./80/binderfs" [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6059 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./79" [pid 5069] <... unlink resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./80", 0777./strace-static-x86_64: Process 6059 attached ) = 0 [pid 6059] chdir("./80" [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6059] <... chdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6060 [pid 6059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6053] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6059] <... prctl resumed>) = 0 [pid 6053] creat("./file0/file0", 0202 [pid 6059] setpgid(0, 0 [pid 6053] <... creat resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 6060 attached [pid 6059] <... setpgid resumed>) = 0 [pid 6053] exit_group(0 [pid 6060] chdir("./80" [pid 6059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6053] <... exit_group resumed>) = ? [pid 6060] <... chdir resumed>) = 0 [pid 6059] <... openat resumed>) = 3 [pid 6053] +++ exited with 0 +++ [pid 6060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6059] write(3, "1000", 4 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6053, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 6060] <... prctl resumed>) = 0 [pid 6059] <... write resumed>) = 4 [pid 6060] setpgid(0, 0 [pid 6059] close(3 [pid 6060] <... setpgid resumed>) = 0 [pid 6059] <... close resumed>) = 0 [pid 6057] <... write resumed>) = 4194304 [pid 5073] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [ 149.973004][ T6053] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 149.981895][ T6053] overlayfs: failed to resolve './file0': -2 [ 149.994711][ T6056] REISERFS (device loop0): checking transaction log (loop0) [ 150.005527][ T6056] REISERFS (device loop0): Using r5 hash to sort names [ 150.013117][ T6056] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6059] symlink("/dev/binderfs", "./binderfs" [pid 6057] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6060] <... openat resumed>) = 3 [pid 6059] <... symlink resumed>) = 0 [pid 6057] <... munmap resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6060] write(3, "1000", 4 [pid 6059] memfd_create("syzkaller", 0 [pid 6057] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... openat resumed>) = 3 [pid 6060] <... write resumed>) = 4 [pid 6059] <... memfd_create resumed>) = 3 [pid 6057] <... openat resumed>) = 4 [pid 5073] fstat(3, [pid 6059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6057] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6060] close(3 [pid 6059] <... mmap resumed>) = 0x7f7f7af80000 [pid 6060] <... close resumed>) = 0 [pid 6056] <... mount resumed>) = 0 [pid 5073] getdents64(3, [pid 6057] <... ioctl resumed>) = 0 [pid 6060] symlink("/dev/binderfs", "./binderfs" [pid 6057] close(3 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6056] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6057] <... close resumed>) = 0 [pid 6057] mkdir("./file0", 0777 [pid 6060] <... symlink resumed>) = 0 [pid 6057] <... mkdir resumed>) = 0 [pid 6056] <... openat resumed>) = 3 [pid 5073] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6060] memfd_create("syzkaller", 0 [pid 6057] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6056] chdir("./file0" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 6060] <... memfd_create resumed>) = 3 [pid 6056] <... chdir resumed>) = 0 [pid 5073] lstat("./81/binderfs", [pid 6060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6056] ioctl(4, LOOP_CLR_FD [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6060] <... mmap resumed>) = 0x7f7f7af80000 [ 150.050776][ T6056] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 150.068990][ T6057] loop4: detected capacity change from 0 to 8192 [pid 6056] <... ioctl resumed>) = 0 [pid 5073] unlink("./81/binderfs" [pid 6056] close(4 [pid 5073] <... unlink resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] 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"..., 4194304 [pid 6056] <... close resumed>) = 0 [pid 5073] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./80/file0", [pid 6056] mkdir("./file1", 000 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6056] <... mkdir resumed>) = 0 [pid 5069] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6056] mkdir("./bus", 000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 150.101977][ T6057] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 150.120454][ T6057] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 150.129884][ T6057] REISERFS (device loop4): using ordered data mode [ 150.136545][ T6057] reiserfs: using flush barriers [pid 6056] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6056] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6059] <... write resumed>) = 4194304 [pid 5069] close(4) = 0 [pid 5069] rmdir("./80/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./80") = 0 [pid 5069] mkdir("./81", 0777 [pid 6059] munmap(0x7f7f7af80000, 4194304 [pid 5069] <... mkdir resumed>) = 0 [pid 6059] <... munmap resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6059] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 150.142613][ T6057] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.155757][ T6056] overlayfs: upper fs needs to support d_type. [ 150.190742][ T6056] overlayfs: upper fs does not support tmpfile. [pid 5069] close(3 [pid 6059] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 6059] ioctl(4, LOOP_SET_FD, 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6062 [pid 6059] <... ioctl resumed>) = 0 [pid 6059] close(3./strace-static-x86_64: Process 6062 attached ) = 0 [pid 6062] chdir("./81" [pid 6059] mkdir("./file0", 0777 [pid 6062] <... chdir resumed>) = 0 [pid 6060] 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"..., 4194304 [pid 6059] <... mkdir resumed>) = 0 [pid 6056] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6056] creat("./file0/file0", 0202 [pid 6059] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6056] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6056] exit_group(0) = ? [pid 6056] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6056, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5068] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6062] <... prctl resumed>) = 0 [pid 5068] lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./81/binderfs" [pid 6062] setpgid(0, 0 [pid 5068] <... unlink resumed>) = 0 [pid 6062] <... setpgid resumed>) = 0 [pid 5068] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6062] write(3, "1000", 4) = 4 [pid 6062] close(3) = 0 [pid 6062] symlink("/dev/binderfs", "./binderfs") = 0 [ 150.199713][ T6056] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 150.208469][ T6059] loop3: detected capacity change from 0 to 8192 [ 150.208894][ T6056] overlayfs: failed to resolve './file0': -2 [ 150.221886][ T6057] REISERFS (device loop4): checking transaction log (loop4) [ 150.237495][ T6057] REISERFS (device loop4): Using r5 hash to sort names [pid 6062] memfd_create("syzkaller", 0) = 3 [pid 6062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6060] <... write resumed>) = 4194304 [pid 6060] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6060] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 150.278815][ T6059] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 150.309154][ T6060] loop2: detected capacity change from 0 to 8192 [pid 6060] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6060] close(3) = 0 [pid 6060] mkdir("./file0", 0777) = 0 [pid 6060] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./81/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [ 150.318227][ T6057] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 150.347310][ T6060] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 150.361283][ T6059] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5073] <... umount2 resumed>) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./81") = 0 [pid 5068] mkdir("./82", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 5073] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6065 [pid 5073] lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6065 attached ) = -1 EINVAL (Invalid argument) [pid 6062] 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"..., 4194304 [pid 5073] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6065] chdir("./82" [pid 5073] getdents64(4, [pid 6065] <... chdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] close(4) = 0 [pid 6065] <... prctl resumed>) = 0 [pid 5073] rmdir("./81/file0") = 0 [pid 6065] setpgid(0, 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6065] <... setpgid resumed>) = 0 [pid 5073] close(3 [pid 6065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./81") = 0 [pid 5073] mkdir("./82", 0777 [pid 6065] <... openat resumed>) = 3 [ 150.377365][ T6060] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 150.388303][ T6057] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 150.397884][ T6059] REISERFS (device loop3): using ordered data mode [ 150.407086][ T6059] reiserfs: using flush barriers [ 150.418328][ T6060] REISERFS (device loop2): using ordered data mode [pid 6065] write(3, "1000", 4 [pid 5073] <... mkdir resumed>) = 0 [pid 6057] <... mount resumed>) = 0 [pid 6065] <... write resumed>) = 4 [pid 6057] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6065] close(3 [pid 6057] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 6065] <... close resumed>) = 0 [pid 6057] chdir("./file0" [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6065] symlink("/dev/binderfs", "./binderfs" [pid 6057] <... chdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6065] <... symlink resumed>) = 0 [pid 6057] ioctl(4, LOOP_CLR_FD [pid 5073] close(3 [pid 6065] memfd_create("syzkaller", 0 [pid 6057] <... ioctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6065] <... memfd_create resumed>) = 3 [pid 6057] close(4 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6066 attached [pid 6065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6062] <... write resumed>) = 4194304 [pid 6057] <... close resumed>) = 0 [ 150.422630][ T6059] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.469416][ T6060] reiserfs: using flush barriers [pid 6065] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6066 [pid 6066] chdir("./82" [pid 6062] munmap(0x7f7f7af80000, 4194304 [pid 6057] mkdir("./file1", 000 [pid 6066] <... chdir resumed>) = 0 [pid 6062] <... munmap resumed>) = 0 [pid 6057] <... mkdir resumed>) = 0 [pid 6066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6062] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6066] <... prctl resumed>) = 0 [pid 6062] <... openat resumed>) = 4 [pid 6057] mkdir("./bus", 000 [pid 6066] setpgid(0, 0 [pid 6062] ioctl(4, LOOP_SET_FD, 3 [pid 6066] <... setpgid resumed>) = 0 [pid 6057] <... mkdir resumed>) = 0 [ 150.476578][ T6060] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.496210][ T6060] REISERFS (device loop2): checking transaction log (loop2) [ 150.505164][ T6059] REISERFS (device loop3): checking transaction log (loop3) [ 150.513490][ T6062] loop1: detected capacity change from 0 to 8192 [pid 6066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6062] <... ioctl resumed>) = 0 [pid 6057] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6066] <... openat resumed>) = 3 [pid 6065] 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"..., 4194304 [pid 6062] close(3 [pid 6066] write(3, "1000", 4 [pid 6062] <... close resumed>) = 0 [pid 6066] <... write resumed>) = 4 [pid 6062] mkdir("./file0", 0777 [pid 6066] close(3 [pid 6062] <... mkdir resumed>) = 0 [pid 6066] <... close resumed>) = 0 [pid 6062] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 150.531191][ T6060] REISERFS (device loop2): Using r5 hash to sort names [ 150.539370][ T6059] REISERFS (device loop3): Using r5 hash to sort names [ 150.541265][ T6060] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 150.561712][ T6057] overlayfs: upper fs needs to support d_type. [ 150.563238][ T6059] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6066] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6066] memfd_create("syzkaller", 0 [pid 6065] <... write resumed>) = 4194304 [pid 6060] <... mount resumed>) = 0 [pid 6066] <... memfd_create resumed>) = 3 [pid 6065] munmap(0x7f7f7af80000, 4194304 [pid 6060] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6059] <... mount resumed>) = 0 [pid 6066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6065] <... munmap resumed>) = 0 [pid 6060] <... openat resumed>) = 3 [pid 6066] <... mmap resumed>) = 0x7f7f7af80000 [pid 6065] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6060] chdir("./file0" [pid 6065] <... openat resumed>) = 4 [pid 6060] <... chdir resumed>) = 0 [pid 6065] ioctl(4, LOOP_SET_FD, 3 [ 150.581538][ T6057] overlayfs: upper fs does not support tmpfile. [ 150.583608][ T6060] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 150.589575][ T6057] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 150.599799][ T6059] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 150.609246][ T6057] overlayfs: failed to resolve './file0': -2 [ 150.614687][ T6062] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6060] ioctl(4, LOOP_CLR_FD) = 0 [pid 6057] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6057] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6057] exit_group(0) = ? [pid 6060] close(4) = 0 [pid 6057] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6057, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 6059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6065] <... ioctl resumed>) = 0 [pid 6060] mkdir("./file1", 000 [pid 6059] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6065] close(3 [pid 6060] <... mkdir resumed>) = 0 [pid 6059] chdir("./file0" [pid 5072] <... openat resumed>) = 3 [pid 6065] <... close resumed>) = 0 [pid 6060] mkdir("./bus", 000 [pid 6059] <... chdir resumed>) = 0 [pid 5072] fstat(3, [pid 6066] 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"..., 4194304 [pid 6059] ioctl(4, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6059] <... ioctl resumed>) = 0 [ 150.633069][ T6062] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 150.633272][ T6065] loop0: detected capacity change from 0 to 8192 [ 150.655926][ T6062] REISERFS (device loop1): using ordered data mode [ 150.673889][ T6062] reiserfs: using flush barriers [pid 5072] getdents64(3, [pid 6065] mkdir("./file0", 0777 [pid 6060] <... mkdir resumed>) = 0 [pid 6059] close(4 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6065] <... mkdir resumed>) = 0 [pid 6060] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6059] <... close resumed>) = 0 [pid 5072] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6065] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6059] mkdir("./file1", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] <... mkdir resumed>) = 0 [pid 5072] lstat("./81/binderfs", [pid 6059] mkdir("./bus", 000 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6059] <... mkdir resumed>) = 0 [pid 5072] unlink("./81/binderfs" [ 150.694449][ T6062] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.714517][ T6060] overlayfs: upper fs needs to support d_type. [ 150.720936][ T6060] overlayfs: upper fs does not support tmpfile. [ 150.730641][ T6059] overlayfs: upper fs needs to support d_type. [pid 6059] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... unlink resumed>) = 0 [pid 6066] <... write resumed>) = 4194304 [pid 5072] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6066] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6066] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6060] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6060] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6060] exit_group(0) = ? [pid 6060] +++ exited with 0 +++ [pid 6066] <... openat resumed>) = 4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6060, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [ 150.738294][ T6060] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 150.748160][ T6059] overlayfs: upper fs does not support tmpfile. [ 150.754815][ T6065] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 150.761395][ T6062] REISERFS (device loop1): checking transaction log (loop1) [ 150.769845][ T6060] overlayfs: failed to resolve './file0': -2 [ 150.784996][ T6066] loop5: detected capacity change from 0 to 8192 [pid 6066] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5070] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./80/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./80/binderfs") = 0 [pid 5070] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6066] close(3) = 0 [pid 6066] mkdir("./file0", 0777) = 0 [pid 6062] <... mount resumed>) = 0 [pid 6066] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6062] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 150.785118][ T6065] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 150.801949][ T6062] REISERFS (device loop1): Using r5 hash to sort names [ 150.802704][ T6059] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 150.811027][ T6062] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 150.829677][ T6062] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6062] chdir("./file0") = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6062] ioctl(4, LOOP_CLR_FD) = 0 [pid 6062] close(4 [pid 5072] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6062] <... close resumed>) = 0 [pid 6062] mkdir("./file1", 000) = 0 [ 150.849282][ T6066] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 150.858812][ T6059] overlayfs: failed to resolve './file0': -2 [ 150.868944][ T6065] REISERFS (device loop0): using ordered data mode [ 150.875927][ T6065] reiserfs: using flush barriers [ 150.884030][ T6066] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 150.893216][ T6066] REISERFS (device loop5): using ordered data mode [pid 6062] mkdir("./bus", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6062] <... mkdir resumed>) = 0 [pid 5072] lstat("./81/file0", [pid 6062] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6059] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6059] creat("./file0/file0", 0202 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6059] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6059] exit_group(0 [pid 5072] <... openat resumed>) = 4 [pid 6059] <... exit_group resumed>) = ? [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 6059] +++ exited with 0 +++ [ 150.900453][ T6066] reiserfs: using flush barriers [ 150.907231][ T6066] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.907689][ T6062] overlayfs: upper fs needs to support d_type. [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6059, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5070] <... umount2 resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5071] umount2("./80", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] rmdir("./81/file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... rmdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./80", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] getdents64(3, [pid 5071] <... openat resumed>) = 3 [pid 5070] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] fstat(3, [pid 5072] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5072] rmdir("./81" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] umount2("./80/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] mkdir("./82", 0777 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... mkdir resumed>) = 0 [pid 5071] lstat("./80/binderfs", [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] unlink("./80/binderfs" [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... unlink resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 150.937897][ T6065] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 150.963728][ T6062] overlayfs: upper fs does not support tmpfile. [ 150.971155][ T6062] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 150.994014][ T6062] overlayfs: failed to resolve './file0': -2 [pid 5071] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6062] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6070 [pid 6062] creat("./file0/file0", 0202 [pid 5070] lstat("./80/file0", ./strace-static-x86_64: Process 6070 attached [pid 6062] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6070] chdir("./82" [pid 6062] exit_group(0 [ 151.000969][ T6066] REISERFS (device loop5): checking transaction log (loop5) [ 151.010168][ T6065] REISERFS (device loop0): checking transaction log (loop0) [ 151.012761][ T6066] REISERFS (device loop5): Using r5 hash to sort names [ 151.025995][ T6065] REISERFS (device loop0): Using r5 hash to sort names [ 151.026739][ T6066] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6070] <... chdir resumed>) = 0 [pid 6062] <... exit_group resumed>) = ? [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6062] +++ exited with 0 +++ [pid 5070] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6070] <... prctl resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 6070] setpgid(0, 0 [pid 5070] fstat(4, [pid 6070] <... setpgid resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] getdents64(4, [pid 6070] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6070] write(3, "1000", 4 [pid 5070] getdents64(4, [pid 6070] <... write resumed>) = 4 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6070] close(3 [pid 5070] close(4 [pid 6070] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 6070] symlink("/dev/binderfs", "./binderfs" [pid 5070] rmdir("./80/file0" [pid 6070] <... symlink resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 6070] memfd_create("syzkaller", 0 [pid 5070] getdents64(3, [pid 6070] <... memfd_create resumed>) = 3 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] close(3 [pid 6070] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./80") = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6062, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5070] mkdir("./81", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6071 [pid 5069] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./81/binderfs") = 0 [ 151.033217][ T6065] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 151.046414][ T6066] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6071 attached [pid 6066] <... mount resumed>) = 0 [pid 6065] <... mount resumed>) = 0 [pid 6071] chdir("./81" [pid 6066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6071] <... chdir resumed>) = 0 [pid 6071] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6066] <... openat resumed>) = 3 [pid 6065] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6071] <... prctl resumed>) = 0 [pid 6066] chdir("./file0" [pid 6065] <... openat resumed>) = 3 [pid 6071] setpgid(0, 0 [pid 6066] <... chdir resumed>) = 0 [pid 6065] chdir("./file0" [pid 6071] <... setpgid resumed>) = 0 [pid 6066] ioctl(4, LOOP_CLR_FD [pid 6065] <... chdir resumed>) = 0 [pid 6071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6066] <... ioctl resumed>) = 0 [pid 6065] ioctl(4, LOOP_CLR_FD [pid 6071] <... openat resumed>) = 3 [pid 6071] write(3, "1000", 4 [pid 6066] close(4 [pid 6065] <... ioctl resumed>) = 0 [pid 6066] <... close resumed>) = 0 [pid 6066] mkdir("./file1", 000 [pid 6071] <... write resumed>) = 4 [pid 6071] close(3 [pid 6066] <... mkdir resumed>) = 0 [pid 6065] close(4 [pid 6071] <... close resumed>) = 0 [pid 6066] mkdir("./bus", 000 [pid 6065] <... close resumed>) = 0 [pid 6071] symlink("/dev/binderfs", "./binderfs" [pid 6066] <... mkdir resumed>) = 0 [pid 6065] mkdir("./file1", 000 [pid 6071] <... symlink resumed>) = 0 [pid 6066] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6065] <... mkdir resumed>) = 0 [ 151.107179][ T6065] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6065] mkdir("./bus", 000 [pid 6071] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6065] <... mkdir resumed>) = 0 [pid 6071] <... memfd_create resumed>) = 3 [pid 6065] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6070] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./80/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./80/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./80/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6071] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./80/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./80") = 0 [pid 5071] mkdir("./81", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6072 ./strace-static-x86_64: Process 6072 attached [pid 6072] chdir("./81") = 0 [pid 6072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6072] setpgid(0, 0) = 0 [pid 6072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6072] write(3, "1000", 4) = 4 [pid 6072] close(3) = 0 [ 151.150349][ T6066] overlayfs: upper fs needs to support d_type. [ 151.159023][ T6066] overlayfs: upper fs does not support tmpfile. [ 151.165694][ T6065] overlayfs: upper fs needs to support d_type. [pid 6072] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6072] memfd_create("syzkaller", 0) = 3 [pid 6072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... umount2 resumed>) = 0 [pid 6072] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./81/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./81/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./81") = 0 [pid 5069] mkdir("./82", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [ 151.196367][ T6065] overlayfs: upper fs does not support tmpfile. [ 151.222414][ T6066] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 151.234010][ T6065] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6071] 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"..., 4194304 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6073 ./strace-static-x86_64: Process 6073 attached [pid 6073] chdir("./82") = 0 [pid 6073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6073] setpgid(0, 0) = 0 [pid 6073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6073] write(3, "1000", 4) = 4 [pid 6066] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6073] close(3 [pid 6065] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6073] <... close resumed>) = 0 [pid 6066] creat("./file0/file0", 0202 [pid 6065] creat("./file0/file0", 0202 [pid 6073] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6072] 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"..., 4194304 [pid 6070] <... write resumed>) = 4194304 [pid 6066] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6065] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6073] memfd_create("syzkaller", 0 [pid 6070] munmap(0x7f7f7af80000, 4194304 [pid 6066] exit_group(0 [pid 6065] exit_group(0 [pid 6073] <... memfd_create resumed>) = 3 [pid 6073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6070] <... munmap resumed>) = 0 [pid 6066] <... exit_group resumed>) = ? [pid 6065] <... exit_group resumed>) = ? [pid 6070] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6066] +++ exited with 0 +++ [pid 6065] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6066, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6065, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 6070] <... openat resumed>) = 4 [ 151.267667][ T6066] overlayfs: failed to resolve './file0': -2 [ 151.275782][ T6065] overlayfs: failed to resolve './file0': -2 [pid 6070] ioctl(4, LOOP_SET_FD, 3 [pid 5068] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... openat resumed>) = 3 [pid 6070] <... ioctl resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 6070] close(3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(3, [pid 5073] getdents64(3, [pid 6070] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6071] <... write resumed>) = 4194304 [pid 6070] mkdir("./file0", 0777 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] getdents64(3, [pid 6070] <... mkdir resumed>) = 0 [pid 5073] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6071] munmap(0x7f7f7af80000, 4194304 [pid 6070] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] lstat("./82/binderfs", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] lstat("./82/binderfs", [pid 6071] <... munmap resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./82/binderfs" [pid 6071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] <... unlink resumed>) = 0 [pid 5068] unlink("./82/binderfs" [pid 5073] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... unlink resumed>) = 0 [pid 6071] <... openat resumed>) = 4 [pid 5068] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 151.328415][ T6070] loop4: detected capacity change from 0 to 8192 [ 151.364490][ T6071] loop2: detected capacity change from 0 to 8192 [pid 6071] ioctl(4, LOOP_SET_FD, 3 [pid 6073] 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"..., 4194304 [pid 6071] <... ioctl resumed>) = 0 [pid 6071] close(3) = 0 [pid 6071] mkdir("./file0", 0777) = 0 [ 151.375283][ T6070] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 151.413694][ T6070] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 6071] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6072] <... write resumed>) = 4194304 [pid 6072] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6072] ioctl(4, LOOP_SET_FD, 3 [pid 6073] <... write resumed>) = 4194304 [pid 6073] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6073] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 151.424707][ T6070] REISERFS (device loop4): using ordered data mode [ 151.432228][ T6070] reiserfs: using flush barriers [ 151.440747][ T6070] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 151.458898][ T6071] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6073] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6073] close(3) = 0 [pid 6073] mkdir("./file0", 0777) = 0 [ 151.473686][ T6072] loop3: detected capacity change from 0 to 8192 [ 151.480314][ T6073] loop1: detected capacity change from 0 to 8192 [ 151.503953][ T6071] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 151.514350][ T6071] REISERFS (device loop2): using ordered data mode [ 151.521797][ T6071] reiserfs: using flush barriers [pid 6073] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6072] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [ 151.528418][ T6073] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 151.530573][ T6070] REISERFS (device loop4): checking transaction log (loop4) [ 151.543954][ T6073] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 151.553473][ T6070] REISERFS (device loop4): Using r5 hash to sort names [pid 6072] close(3 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6072] <... close resumed>) = 0 [pid 5073] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6072] mkdir("./file0", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./82/file0", [pid 6072] <... mkdir resumed>) = 0 [pid 5073] lstat("./82/file0", [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6072] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 4 [pid 5073] <... openat resumed>) = 4 [pid 5068] fstat(4, [pid 5073] fstat(4, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 151.558331][ T6071] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 151.565165][ T6070] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 151.582382][ T6073] REISERFS (device loop1): using ordered data mode [ 151.594129][ T6070] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 151.610184][ T6071] REISERFS (device loop2): checking transaction log (loop2) [pid 5068] getdents64(4, [pid 6070] <... mount resumed>) = 0 [pid 5073] getdents64(4, [pid 6070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6070] chdir("./file0") = 0 [pid 6070] ioctl(4, LOOP_CLR_FD) = 0 [pid 6070] close(4) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6070] mkdir("./file1", 000) = 0 [pid 6070] mkdir("./bus", 000) = 0 [pid 6070] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] getdents64(4, [ 151.610211][ T6072] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 151.617693][ T6073] reiserfs: using flush barriers [ 151.631377][ T6071] REISERFS (device loop2): Using r5 hash to sort names [ 151.643661][ T6071] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 151.652175][ T6073] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 151.657415][ T6070] overlayfs: upper fs needs to support d_type. [pid 5068] getdents64(4, [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5068] close(4 [pid 5073] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] rmdir("./82/file0" [pid 5068] rmdir("./82/file0" [pid 5073] <... rmdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5068] getdents64(3, [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5068] close(3 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./82" [pid 5068] <... close resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] rmdir("./82" [pid 5073] mkdir("./83", 0777 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5068] mkdir("./83", 0777 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] <... mkdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 151.674596][ T6073] REISERFS (device loop1): checking transaction log (loop1) [ 151.679355][ T6071] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 151.686592][ T6072] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 151.705389][ T6072] REISERFS (device loop3): using ordered data mode [ 151.712747][ T6072] reiserfs: using flush barriers [ 151.717889][ T6073] REISERFS (device loop1): Using r5 hash to sort names [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] close(3 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... close resumed>) = 0 [pid 5068] close(3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6078 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6079 [pid 6073] <... mount resumed>) = 0 [pid 6071] <... mount resumed>) = 0 ./strace-static-x86_64: Process 6079 attached ./strace-static-x86_64: Process 6078 attached [pid 6079] chdir("./83" [pid 6078] chdir("./83" [pid 6079] <... chdir resumed>) = 0 [pid 6078] <... chdir resumed>) = 0 [pid 6079] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6079] <... prctl resumed>) = 0 [pid 6078] <... prctl resumed>) = 0 [pid 6079] setpgid(0, 0 [pid 6078] setpgid(0, 0 [pid 6079] <... setpgid resumed>) = 0 [pid 6078] <... setpgid resumed>) = 0 [pid 6079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6079] <... openat resumed>) = 3 [pid 6078] <... openat resumed>) = 3 [pid 6079] write(3, "1000", 4 [pid 6078] write(3, "1000", 4 [pid 6079] <... write resumed>) = 4 [pid 6078] <... write resumed>) = 4 [pid 6079] close(3 [pid 6078] close(3 [pid 6079] <... close resumed>) = 0 [pid 6078] <... close resumed>) = 0 [pid 6079] symlink("/dev/binderfs", "./binderfs" [pid 6078] symlink("/dev/binderfs", "./binderfs" [pid 6079] <... symlink resumed>) = 0 [pid 6078] <... symlink resumed>) = 0 [pid 6073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6079] memfd_create("syzkaller", 0 [ 151.725761][ T6073] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 151.738517][ T6073] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 151.747398][ T6070] overlayfs: upper fs does not support tmpfile. [ 151.754582][ T6072] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6078] memfd_create("syzkaller", 0 [pid 6073] <... openat resumed>) = 3 [pid 6071] <... openat resumed>) = 3 [pid 6079] <... memfd_create resumed>) = 3 [pid 6078] <... memfd_create resumed>) = 3 [pid 6073] chdir("./file0" [pid 6071] chdir("./file0" [pid 6079] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6078] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6073] <... chdir resumed>) = 0 [pid 6071] <... chdir resumed>) = 0 [pid 6079] <... mmap resumed>) = 0x7f7f7af80000 [pid 6078] <... mmap resumed>) = 0x7f7f7af80000 [pid 6073] ioctl(4, LOOP_CLR_FD [pid 6071] ioctl(4, LOOP_CLR_FD [pid 6073] <... ioctl resumed>) = 0 [pid 6071] <... ioctl resumed>) = 0 [pid 6073] close(4 [pid 6071] close(4 [pid 6073] <... close resumed>) = 0 [pid 6071] <... close resumed>) = 0 [pid 6073] mkdir("./file1", 000 [pid 6071] mkdir("./file1", 000 [pid 6073] <... mkdir resumed>) = 0 [pid 6071] <... mkdir resumed>) = 0 [pid 6073] mkdir("./bus", 000 [pid 6071] mkdir("./bus", 000 [pid 6073] <... mkdir resumed>) = 0 [pid 6071] <... mkdir resumed>) = 0 [pid 6073] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 151.776107][ T6070] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 151.782064][ T6072] REISERFS (device loop3): checking transaction log (loop3) [ 151.792568][ T6072] REISERFS (device loop3): Using r5 hash to sort names [ 151.794839][ T6070] overlayfs: failed to resolve './file0': -2 [ 151.817667][ T6073] overlayfs: upper fs needs to support d_type. [pid 6071] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6079] 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"..., 4194304 [pid 6078] 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"..., 4194304 [pid 6070] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6070] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6070] exit_group(0) = ? [pid 6070] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6070, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5072] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./82/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 151.825452][ T6071] overlayfs: upper fs needs to support d_type. [ 151.831662][ T6071] overlayfs: upper fs does not support tmpfile. [ 151.844525][ T6073] overlayfs: upper fs does not support tmpfile. [ 151.851357][ T6073] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 151.859598][ T6072] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] unlink("./82/binderfs") = 0 [pid 5072] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6072] <... mount resumed>) = 0 [pid 6072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6073] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6073] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6073] exit_group(0) = ? [pid 6073] +++ exited with 0 +++ [pid 6072] chdir("./file0" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6073, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6072] <... chdir resumed>) = 0 [pid 6072] ioctl(4, LOOP_CLR_FD [pid 5069] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6072] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6072] close(4 [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6072] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6072] mkdir("./file1", 000 [pid 5069] lstat("./82/binderfs", [pid 6072] <... mkdir resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./82/binderfs" [pid 6072] mkdir("./bus", 000) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 6072] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 151.887679][ T6073] overlayfs: failed to resolve './file0': -2 [ 151.894581][ T6072] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 151.920687][ T6071] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6071] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6071] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6071] exit_group(0) = ? [pid 6071] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6071, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5070] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./81/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./81/binderfs") = 0 [ 151.937320][ T6072] overlayfs: upper fs needs to support d_type. [ 151.956091][ T6071] overlayfs: failed to resolve './file0': -2 [ 151.962777][ T6072] overlayfs: upper fs does not support tmpfile. [ 151.970371][ T6072] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 6079] <... write resumed>) = 4194304 [pid 6072] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6072] creat("./file0/file0", 0202 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6072] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] lstat("./82/file0", [pid 6072] exit_group(0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6072] <... exit_group resumed>) = ? [ 152.021503][ T6072] overlayfs: failed to resolve './file0': -2 [pid 5072] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 6072] +++ exited with 0 +++ [pid 5072] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6072, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 6079] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5071] umount2("./81", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./82/file0" [pid 5071] openat(AT_FDCWD, "./81", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6079] <... munmap resumed>) = 0 [pid 6078] <... write resumed>) = 4194304 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6079] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6078] munmap(0x7f7f7af80000, 4194304 [pid 5072] getdents64(3, [pid 5071] fstat(3, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] close(3 [pid 5071] getdents64(3, [pid 5072] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] rmdir("./82" [pid 5071] umount2("./81/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6079] <... openat resumed>) = 4 [pid 6078] <... munmap resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] mkdir("./83", 0777 [pid 5071] lstat("./81/binderfs", [pid 6079] ioctl(4, LOOP_SET_FD, 3 [pid 6078] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] unlink("./81/binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5071] <... unlink resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] lstat("./82/file0", [pid 5072] close(3 [pid 6079] <... ioctl resumed>) = 0 [pid 6078] <... openat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 6079] close(3 [pid 6078] ioctl(4, LOOP_SET_FD, 3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6079] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6079] mkdir("./file0", 0777 [pid 6078] <... ioctl resumed>) = 0 [pid 5070] lstat("./81/file0", [pid 5069] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6080 attached [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6080 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6080] chdir("./83" [pid 5069] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6080] <... chdir resumed>) = 0 [pid 6079] <... mkdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 4 [pid 6080] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6079] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 6080] <... prctl resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6080] setpgid(0, 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 6080] <... setpgid resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6078] close(3 [pid 5069] getdents64(4, [pid 6080] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6080] write(3, "1000", 4 [pid 5069] close(4 [pid 6080] <... write resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 6080] close(3 [pid 5069] rmdir("./82/file0" [pid 6080] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 6080] symlink("/dev/binderfs", "./binderfs" [pid 5069] getdents64(3, [pid 6080] <... symlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6080] memfd_create("syzkaller", 0 [pid 5069] close(3 [pid 6080] <... memfd_create resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 6080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] rmdir("./82" [pid 6080] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] <... rmdir resumed>) = 0 [pid 6078] <... close resumed>) = 0 [pid 5070] fstat(4, [pid 5069] mkdir("./83", 0777 [pid 6078] mkdir("./file0", 0777 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5070] getdents64(4, [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6078] <... mkdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [ 152.104138][ T6079] loop0: detected capacity change from 0 to 8192 [ 152.120605][ T6078] loop5: detected capacity change from 0 to 8192 [ 152.139721][ T6079] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] close(3 [pid 6078] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] getdents64(4, [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6082 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./81/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 6082 attached [pid 5071] <... umount2 resumed>) = 0 [pid 6082] chdir("./83") = 0 [pid 6082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6082] setpgid(0, 0) = 0 [pid 6082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6082] write(3, "1000", 4) = 4 [pid 6082] close(3) = 0 [pid 6082] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 6082] memfd_create("syzkaller", 0) = 3 [pid 6082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 5071] lstat("./81/file0", [pid 5070] rmdir("./81" [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] umount2("./81/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] mkdir("./82", 0777 [pid 5071] openat(AT_FDCWD, "./81/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 152.166350][ T6079] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 152.188333][ T6079] REISERFS (device loop0): using ordered data mode [ 152.195814][ T6079] reiserfs: using flush barriers [ 152.200836][ T6078] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] getdents64(4, [pid 5070] close(3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] close(4 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./81/file0") = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6084 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./81" [pid 6080] 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"..., 4194304 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./82", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3./strace-static-x86_64: Process 6084 attached ) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6085 [pid 6084] chdir("./82") = 0 [pid 6084] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6085 attached ) = 0 [pid 6084] setpgid(0, 0 [pid 6085] chdir("./82" [pid 6084] <... setpgid resumed>) = 0 [pid 6085] <... chdir resumed>) = 0 [pid 6084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6082] 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"..., 4194304 [pid 6084] <... openat resumed>) = 3 [pid 6085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6084] write(3, "1000", 4) = 4 [pid 6085] setpgid(0, 0) = 0 [pid 6084] close(3) = 0 [pid 6085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6084] symlink("/dev/binderfs", "./binderfs" [pid 6085] <... openat resumed>) = 3 [pid 6085] write(3, "1000", 4 [pid 6084] <... symlink resumed>) = 0 [ 152.222224][ T6079] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.260418][ T6078] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6084] memfd_create("syzkaller", 0 [pid 6085] <... write resumed>) = 4 [pid 6084] <... memfd_create resumed>) = 3 [pid 6084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6085] close(3 [pid 6084] <... mmap resumed>) = 0x7f7f7af80000 [pid 6085] <... close resumed>) = 0 [pid 6085] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6085] memfd_create("syzkaller", 0) = 3 [pid 6085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6080] <... write resumed>) = 4194304 [pid 6080] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6080] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6080] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6080] close(3) = 0 [pid 6080] mkdir("./file0", 0777) = 0 [ 152.317891][ T6078] REISERFS (device loop5): using ordered data mode [ 152.335919][ T6080] loop4: detected capacity change from 0 to 8192 [ 152.345492][ T6079] REISERFS (device loop0): checking transaction log (loop0) [ 152.353804][ T6079] REISERFS (device loop0): Using r5 hash to sort names [ 152.361182][ T6078] reiserfs: using flush barriers [pid 6080] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6085] 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"..., 4194304 [ 152.363554][ T6079] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 152.380633][ T6078] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.381162][ T6080] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6084] 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"..., 4194304 [pid 6079] <... mount resumed>) = 0 [pid 6079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6079] chdir("./file0") = 0 [pid 6079] ioctl(4, LOOP_CLR_FD) = 0 [pid 6079] close(4) = 0 [pid 6079] mkdir("./file1", 000) = 0 [pid 6079] mkdir("./bus", 000) = 0 [ 152.411569][ T6079] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 152.431814][ T6080] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 152.447116][ T6079] overlayfs: upper fs needs to support d_type. [ 152.455220][ T6079] overlayfs: upper fs does not support tmpfile. [pid 6079] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6082] <... write resumed>) = 4194304 [pid 6082] munmap(0x7f7f7af80000, 4194304) = 0 [ 152.463045][ T6080] REISERFS (device loop4): using ordered data mode [ 152.469746][ T6080] reiserfs: using flush barriers [ 152.474743][ T6078] REISERFS (device loop5): checking transaction log (loop5) [ 152.483801][ T6080] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.495618][ T6079] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 152.500371][ T6080] REISERFS (device loop4): checking transaction log (loop4) [pid 6082] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6082] ioctl(4, LOOP_SET_FD, 3 [pid 6080] <... mount resumed>) = 0 [pid 6080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 152.515809][ T6080] REISERFS (device loop4): Using r5 hash to sort names [ 152.523405][ T6080] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 152.525132][ T6082] loop1: detected capacity change from 0 to 8192 [ 152.536339][ T6080] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 152.553268][ T6078] REISERFS (device loop5): Using r5 hash to sort names [pid 6080] chdir("./file0" [pid 6084] <... write resumed>) = 4194304 [pid 6082] <... ioctl resumed>) = 0 [pid 6080] <... chdir resumed>) = 0 [pid 6078] <... mount resumed>) = 0 [pid 6084] munmap(0x7f7f7af80000, 4194304 [pid 6082] close(3 [pid 6080] ioctl(4, LOOP_CLR_FD [pid 6078] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6082] <... close resumed>) = 0 [pid 6080] <... ioctl resumed>) = 0 [pid 6078] <... openat resumed>) = 3 [pid 6084] <... munmap resumed>) = 0 [pid 6082] mkdir("./file0", 0777 [pid 6080] close(4 [pid 6078] chdir("./file0" [pid 6085] <... write resumed>) = 4194304 [pid 6084] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6082] <... mkdir resumed>) = 0 [pid 6080] <... close resumed>) = 0 [pid 6078] <... chdir resumed>) = 0 [pid 6085] munmap(0x7f7f7af80000, 4194304 [pid 6084] <... openat resumed>) = 4 [pid 6082] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6080] mkdir("./file1", 000 [pid 6078] ioctl(4, LOOP_CLR_FD [pid 6085] <... munmap resumed>) = 0 [pid 6084] ioctl(4, LOOP_SET_FD, 3 [pid 6080] <... mkdir resumed>) = 0 [ 152.561204][ T6078] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 152.574243][ T6078] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 152.579255][ T6079] overlayfs: failed to resolve './file0': -2 [ 152.604006][ T6084] loop2: detected capacity change from 0 to 8192 [pid 6079] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6078] <... ioctl resumed>) = 0 [pid 6085] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6084] <... ioctl resumed>) = 0 [pid 6080] mkdir("./bus", 000 [pid 6079] creat("./file0/file0", 0202 [pid 6078] close(4 [pid 6085] <... openat resumed>) = 4 [pid 6084] close(3 [pid 6080] <... mkdir resumed>) = 0 [pid 6079] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6078] <... close resumed>) = 0 [pid 6085] ioctl(4, LOOP_SET_FD, 3 [pid 6084] <... close resumed>) = 0 [pid 6080] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6079] exit_group(0 [pid 6078] mkdir("./file1", 000 [pid 6085] <... ioctl resumed>) = 0 [pid 6084] mkdir("./file0", 0777 [pid 6079] <... exit_group resumed>) = ? [pid 6078] <... mkdir resumed>) = 0 [pid 6085] close(3 [pid 6084] <... mkdir resumed>) = 0 [pid 6079] +++ exited with 0 +++ [pid 6078] mkdir("./bus", 000 [pid 6085] <... close resumed>) = 0 [pid 6084] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6078] <... mkdir resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6079, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [ 152.611191][ T6082] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 152.614016][ T6085] loop3: detected capacity change from 0 to 8192 [ 152.643496][ T6080] overlayfs: upper fs needs to support d_type. [ 152.649720][ T6080] overlayfs: upper fs does not support tmpfile. [pid 6085] mkdir("./file0", 0777 [pid 6078] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6085] <... mkdir resumed>) = 0 [pid 6085] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./83/binderfs") = 0 [ 152.663810][ T6082] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 152.668316][ T6078] overlayfs: upper fs needs to support d_type. [ 152.674837][ T6082] REISERFS (device loop1): using ordered data mode [ 152.680365][ T6084] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 152.686417][ T6082] reiserfs: using flush barriers [ 152.706522][ T6082] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.717265][ T6078] overlayfs: upper fs does not support tmpfile. [ 152.723619][ T6085] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 152.734810][ T6080] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 152.742265][ T6084] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 152.759130][ T6078] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 152.767215][ T6085] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 152.777906][ T6085] REISERFS (device loop3): using ordered data mode [ 152.782077][ T6078] overlayfs: failed to resolve './file0': -2 [ 152.784941][ T6085] reiserfs: using flush barriers [ 152.790990][ T6082] REISERFS (device loop1): checking transaction log (loop1) [ 152.796491][ T6084] REISERFS (device loop2): using ordered data mode [pid 5068] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6078] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6078] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6078] exit_group(0 [pid 5068] <... umount2 resumed>) = 0 [pid 6078] <... exit_group resumed>) = ? [pid 6078] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6078, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [ 152.809426][ T6085] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.825969][ T6084] reiserfs: using flush barriers [ 152.826905][ T6080] overlayfs: failed to resolve './file0': -2 [ 152.832175][ T6085] REISERFS (device loop3): checking transaction log (loop3) [ 152.844438][ T6084] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 152.856205][ T6082] REISERFS (device loop1): Using r5 hash to sort names [pid 5073] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./83/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./83/binderfs") = 0 [pid 5073] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./83/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./83/file0") = 0 [ 152.861732][ T6084] REISERFS (device loop2): checking transaction log (loop2) [ 152.875674][ T6085] REISERFS (device loop3): Using r5 hash to sort names [ 152.884781][ T6085] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 152.897777][ T6084] REISERFS (device loop2): Using r5 hash to sort names [ 152.905285][ T6084] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./83") = 0 [pid 5068] mkdir("./84", 0777) = 0 [pid 6080] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6080] creat("./file0/file0", 0202 [pid 5068] <... openat resumed>) = 3 [pid 6080] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6080] exit_group(0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6080] <... exit_group resumed>) = ? [pid 5068] close(3 [pid 6085] <... mount resumed>) = 0 [pid 6080] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6080, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=24 /* 0.24 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6090 [pid 5072] <... restart_syscall resumed>) = 0 [pid 6085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6085] chdir("./file0" [pid 5072] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6090 attached [pid 6085] <... chdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6090] chdir("./84" [pid 6085] ioctl(4, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6090] <... chdir resumed>) = 0 [pid 6085] <... ioctl resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 6090] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6085] close(4 [pid 5072] fstat(3, [pid 6090] <... prctl resumed>) = 0 [pid 6085] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6090] setpgid(0, 0 [pid 6085] mkdir("./file1", 000 [pid 5072] getdents64(3, [pid 6090] <... setpgid resumed>) = 0 [pid 6085] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6085] mkdir("./bus", 000 [pid 5072] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6090] <... openat resumed>) = 3 [pid 6085] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 152.918355][ T6085] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 152.926996][ T6082] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 152.928201][ T6084] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6090] write(3, "1000", 4 [pid 6085] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] lstat("./83/binderfs", [pid 6090] <... write resumed>) = 4 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6090] close(3 [pid 5072] unlink("./83/binderfs" [pid 6090] <... close resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 6090] symlink("/dev/binderfs", "./binderfs" [pid 5072] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6090] <... symlink resumed>) = 0 [pid 6090] memfd_create("syzkaller", 0) = 3 [pid 6090] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6082] <... mount resumed>) = 0 [pid 6082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6082] chdir("./file0") = 0 [pid 6082] ioctl(4, LOOP_CLR_FD) = 0 [pid 6082] close(4) = 0 [pid 6082] mkdir("./file1", 000) = 0 [ 152.978331][ T6085] overlayfs: upper fs needs to support d_type. [ 153.007825][ T6085] overlayfs: upper fs does not support tmpfile. [ 153.014092][ T6082] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6082] mkdir("./bus", 000 [pid 6084] <... mount resumed>) = 0 [pid 6082] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 6082] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6084] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6085] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6084] chdir("./file0" [pid 5073] lstat("./83/file0", [pid 6085] creat("./file0/file0", 0202 [pid 6084] <... chdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6085] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6084] ioctl(4, LOOP_CLR_FD [pid 5073] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 6085] exit_group(0) = ? [pid 6084] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6085] +++ exited with 0 +++ [pid 6084] close(4 [pid 5073] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6085, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [ 153.035855][ T6085] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 153.047991][ T6082] overlayfs: upper fs needs to support d_type. [ 153.051338][ T6085] overlayfs: failed to resolve './file0': -2 [ 153.072640][ T6082] overlayfs: upper fs does not support tmpfile. [pid 6084] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5072] lstat("./83/file0", [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6090] 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"..., 4194304 [pid 6084] mkdir("./file1", 000 [pid 6082] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] fstat(4, [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] lstat("./82/binderfs", [pid 6084] <... mkdir resumed>) = 0 [pid 6082] creat("./file0/file0", 0202 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6084] mkdir("./bus", 000 [pid 6082] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] getdents64(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] unlink("./82/binderfs" [pid 6084] <... mkdir resumed>) = 0 [pid 6082] exit_group(0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [ 153.085049][ T6082] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 153.093729][ T6082] overlayfs: failed to resolve './file0': -2 [pid 5072] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6084] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6082] <... exit_group resumed>) = ? [pid 5073] getdents64(4, [pid 5072] <... openat resumed>) = 4 [pid 5071] <... unlink resumed>) = 0 [pid 6082] +++ exited with 0 +++ [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] fstat(4, [pid 5071] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] close(4 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] getdents64(4, [pid 5073] rmdir("./83/file0" [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] getdents64(4, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6082, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5073] getdents64(3, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5073] close(3 [pid 5072] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] rmdir("./83/file0" [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6090] <... write resumed>) = 4194304 [pid 5073] rmdir("./83" [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 6090] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 6090] <... munmap resumed>) = 0 [pid 5073] mkdir("./84", 0777 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6090] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... mkdir resumed>) = 0 [pid 5072] close(3 [pid 6090] <... openat resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... close resumed>) = 0 [pid 5069] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6090] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... openat resumed>) = 3 [ 153.139340][ T6084] overlayfs: upper fs needs to support d_type. [ 153.153705][ T6084] overlayfs: upper fs does not support tmpfile. [pid 5072] rmdir("./83" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... rmdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] mkdir("./84", 0777 [pid 5073] close(3 [pid 5072] <... mkdir resumed>) = 0 [pid 6090] <... ioctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... umount2 resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6091 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6092 [pid 5069] <... openat resumed>) = 3 [pid 6090] close(3 [pid 5071] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(3, [pid 6090] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6092 attached [pid 6090] mkdir("./file0", 0777 [pid 5071] lstat("./82/file0", [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6090] <... mkdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6091 attached [pid 6092] chdir("./84" [pid 6090] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, [pid 6092] <... chdir resumed>) = 0 [pid 6091] chdir("./84") = 0 [pid 6091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6091] setpgid(0, 0) = 0 [pid 6091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6091] write(3, "1000", 4) = 4 [pid 6091] close(3) = 0 [pid 6091] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6091] memfd_create("syzkaller", 0) = 3 [ 153.184470][ T6090] loop0: detected capacity change from 0 to 8192 [ 153.193724][ T6084] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 153.207534][ T6084] overlayfs: failed to resolve './file0': -2 [ 153.221167][ T6090] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6091] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6092] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6084] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6092] <... prctl resumed>) = 0 [pid 6084] creat("./file0/file0", 0202 [pid 5071] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6092] setpgid(0, 0 [pid 6084] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 6084] exit_group(0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6084] <... exit_group resumed>) = ? [pid 5071] fstat(4, [pid 6092] <... setpgid resumed>) = 0 [pid 5069] lstat("./83/binderfs", [pid 6084] +++ exited with 0 +++ [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6084, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] unlink("./83/binderfs" [pid 5071] getdents64(4, [pid 5069] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] getdents64(4, [pid 5070] umount2("./82", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6092] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] write(3, "1000", 4) = 4 [pid 5071] close(4 [pid 5070] openat(AT_FDCWD, "./82", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6092] close(3 [pid 5071] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 6092] <... close resumed>) = 0 [pid 5071] rmdir("./82/file0" [pid 5070] fstat(3, [pid 6092] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6092] <... symlink resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] getdents64(3, [ 153.234923][ T6090] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 153.244198][ T6090] REISERFS (device loop0): using ordered data mode [ 153.255540][ T6090] reiserfs: using flush barriers [ 153.265649][ T6090] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6092] memfd_create("syzkaller", 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6092] <... memfd_create resumed>) = 3 [pid 5071] close(3 [pid 5070] umount2("./82/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] rmdir("./82" [pid 5070] lstat("./82/binderfs", [pid 6091] 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"..., 4194304 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] mkdir("./83", 0777 [pid 5070] unlink("./82/binderfs" [pid 5071] <... mkdir resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6094 [ 153.282778][ T6090] REISERFS (device loop0): checking transaction log (loop0) [ 153.301540][ T6090] REISERFS (device loop0): Using r5 hash to sort names ./strace-static-x86_64: Process 6094 attached [pid 6094] chdir("./83") = 0 [pid 6094] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6090] <... mount resumed>) = 0 [pid 6090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6094] <... prctl resumed>) = 0 [pid 6092] 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"..., 4194304 [pid 6090] <... openat resumed>) = 3 [pid 6094] setpgid(0, 0) = 0 [pid 6094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6094] write(3, "1000", 4 [pid 6090] chdir("./file0" [pid 6094] <... write resumed>) = 4 [pid 6091] <... write resumed>) = 4194304 [pid 6090] <... chdir resumed>) = 0 [pid 6094] close(3 [pid 6090] ioctl(4, LOOP_CLR_FD [pid 6094] <... close resumed>) = 0 [pid 6094] symlink("/dev/binderfs", "./binderfs" [pid 6091] munmap(0x7f7f7af80000, 4194304 [pid 6090] <... ioctl resumed>) = 0 [pid 6094] <... symlink resumed>) = 0 [pid 6090] close(4 [pid 6094] memfd_create("syzkaller", 0 [pid 6091] <... munmap resumed>) = 0 [pid 6090] <... close resumed>) = 0 [pid 6094] <... memfd_create resumed>) = 3 [ 153.323824][ T6090] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 153.336669][ T6090] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6091] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6090] mkdir("./file1", 000 [pid 6091] <... openat resumed>) = 4 [pid 6090] <... mkdir resumed>) = 0 [pid 6091] ioctl(4, LOOP_SET_FD, 3 [pid 6090] mkdir("./bus", 000) = 0 [pid 6090] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6091] <... ioctl resumed>) = 0 [pid 6091] close(3 [pid 6092] <... write resumed>) = 4194304 [pid 6091] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 6092] munmap(0x7f7f7af80000, 4194304 [pid 6091] mkdir("./file0", 0777 [pid 5069] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 153.409358][ T6091] loop5: detected capacity change from 0 to 8192 [ 153.419599][ T6090] overlayfs: upper fs needs to support d_type. [ 153.432070][ T6090] overlayfs: upper fs does not support tmpfile. [pid 6091] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] <... munmap resumed>) = 0 [pid 6091] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] lstat("./83/file0", [pid 6092] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6092] ioctl(4, LOOP_SET_FD, 3 [pid 6090] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6092] <... ioctl resumed>) = 0 [pid 6090] creat("./file0/file0", 0202 [pid 5069] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6092] close(3 [pid 6090] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] lstat("./82/file0", [pid 5069] <... openat resumed>) = 4 [pid 6094] 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"..., 4194304 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6092] <... close resumed>) = 0 [pid 6090] exit_group(0 [ 153.456230][ T6090] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 153.464800][ T6090] overlayfs: failed to resolve './file0': -2 [ 153.472789][ T6091] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 153.487120][ T6092] loop4: detected capacity change from 0 to 8192 [ 153.493629][ T6091] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 153.503111][ T6091] REISERFS (device loop5): using ordered data mode [pid 5070] umount2("./82/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6092] mkdir("./file0", 0777 [pid 6090] <... exit_group resumed>) = ? [pid 5070] openat(AT_FDCWD, "./82/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6092] <... mkdir resumed>) = 0 [pid 6090] +++ exited with 0 +++ [pid 5070] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 6092] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] fstat(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6090, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5070] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5069] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] rmdir("./83/file0" [pid 5068] <... openat resumed>) = 3 [pid 5070] close(4 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] fstat(3, [pid 5070] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] rmdir("./82/file0" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5069] close(3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5069] <... close resumed>) = 0 [ 153.510282][ T6091] reiserfs: using flush barriers [ 153.516372][ T6091] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 153.533041][ T6091] REISERFS (device loop5): checking transaction log (loop5) [ 153.541337][ T6091] REISERFS (device loop5): Using r5 hash to sort names [pid 5068] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] rmdir("./83" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] lstat("./84/binderfs", [pid 6091] <... mount resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] mkdir("./84", 0777 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] rmdir("./82" [pid 5069] <... mkdir resumed>) = 0 [pid 5068] unlink("./84/binderfs" [pid 6091] <... openat resumed>) = 3 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... unlink resumed>) = 0 [pid 6091] chdir("./file0" [pid 5070] mkdir("./83", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5068] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6094] <... write resumed>) = 4194304 [pid 6091] <... chdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... close resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] close(3) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6097 [ 153.548725][ T6091] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 153.561565][ T6091] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 153.565879][ T6092] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 153.591481][ T6092] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 6094] munmap(0x7f7f7af80000, 4194304 [pid 6091] ioctl(4, LOOP_CLR_FD [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6094] <... munmap resumed>) = 0 [pid 6091] <... ioctl resumed>) = 0 [pid 6094] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6091] close(4 [pid 6094] <... openat resumed>) = 4 [pid 6091] <... close resumed>) = 0 [pid 6094] ioctl(4, LOOP_SET_FD, 3 [pid 6091] mkdir("./file1", 000) = 0 [pid 6091] mkdir("./bus", 000) = 0 [pid 6091] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6098 ./strace-static-x86_64: Process 6097 attached [pid 6097] chdir("./84"./strace-static-x86_64: Process 6098 attached ) = 0 [pid 6098] chdir("./83" [pid 6097] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6098] <... chdir resumed>) = 0 [pid 6097] <... prctl resumed>) = 0 [ 153.611277][ T6092] REISERFS (device loop4): using ordered data mode [ 153.614624][ T6094] loop3: detected capacity change from 0 to 8192 [ 153.621975][ T6092] reiserfs: using flush barriers [ 153.627521][ T6091] overlayfs: upper fs needs to support d_type. [ 153.644886][ T6091] overlayfs: upper fs does not support tmpfile. [ 153.651793][ T6091] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6097] setpgid(0, 0 [pid 6094] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6098] <... prctl resumed>) = 0 [pid 6097] <... setpgid resumed>) = 0 [pid 6094] close(3 [pid 6098] setpgid(0, 0 [pid 6097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6098] <... setpgid resumed>) = 0 [pid 6097] <... openat resumed>) = 3 [pid 6094] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6097] write(3, "1000", 4 [pid 6094] mkdir("./file0", 0777 [pid 6098] <... openat resumed>) = 3 [pid 6097] <... write resumed>) = 4 [pid 5068] lstat("./84/file0", [pid 6098] write(3, "1000", 4 [pid 6097] close(3 [pid 6094] <... mkdir resumed>) = 0 [pid 6098] <... write resumed>) = 4 [pid 6097] <... close resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6098] close(3 [pid 6097] symlink("/dev/binderfs", "./binderfs" [pid 6094] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6098] <... close resumed>) = 0 [pid 6097] <... symlink resumed>) = 0 [pid 6091] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6098] symlink("/dev/binderfs", "./binderfs" [pid 6097] memfd_create("syzkaller", 0 [pid 6098] <... symlink resumed>) = 0 [pid 6097] <... memfd_create resumed>) = 3 [pid 6098] memfd_create("syzkaller", 0 [pid 6097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6098] <... memfd_create resumed>) = 3 [pid 6097] <... mmap resumed>) = 0x7f7f7af80000 [pid 6098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6091] creat("./file0/file0", 0202 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] <... mmap resumed>) = 0x7f7f7af80000 [pid 6091] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6091] exit_group(0 [pid 5068] <... openat resumed>) = 4 [pid 6091] <... exit_group resumed>) = ? [pid 5068] fstat(4, [pid 6091] +++ exited with 0 +++ [ 153.659329][ T6092] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 153.694241][ T6091] overlayfs: failed to resolve './file0': -2 [ 153.701196][ T6092] REISERFS (device loop4): checking transaction log (loop4) [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6091, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, [pid 5073] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] close(4 [pid 5073] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5068] rmdir("./84/file0" [pid 5073] fstat(3, [pid 5068] <... rmdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, [pid 5073] getdents64(3, [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] close(3 [pid 5073] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./84" [pid 5073] lstat("./84/binderfs", [pid 5068] <... rmdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] mkdir("./85", 0777 [pid 5073] unlink("./84/binderfs" [pid 5068] <... mkdir resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6100 [ 153.717106][ T6094] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 153.742458][ T6092] REISERFS (device loop4): Using r5 hash to sort names ./strace-static-x86_64: Process 6100 attached [pid 6092] <... mount resumed>) = 0 [pid 6092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6092] chdir("./file0") = 0 [pid 6092] ioctl(4, LOOP_CLR_FD) = 0 [pid 6092] close(4 [pid 6100] chdir("./85") = 0 [pid 6100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6100] setpgid(0, 0 [pid 6098] 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"..., 4194304 [pid 6092] <... close resumed>) = 0 [pid 6100] <... setpgid resumed>) = 0 [pid 6100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6100] write(3, "1000", 4 [pid 6092] mkdir("./file1", 000 [pid 6100] <... write resumed>) = 4 [pid 6100] close(3) = 0 [pid 6100] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6100] memfd_create("syzkaller", 0 [pid 6092] <... mkdir resumed>) = 0 [pid 6100] <... memfd_create resumed>) = 3 [pid 6092] mkdir("./bus", 000 [pid 6100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6092] <... mkdir resumed>) = 0 [ 153.764620][ T6092] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 153.772369][ T6094] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 153.777392][ T6092] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6092] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6097] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./84/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 153.840588][ T6092] overlayfs: upper fs needs to support d_type. [ 153.868487][ T6092] overlayfs: upper fs does not support tmpfile. [ 153.876690][ T6094] REISERFS (device loop3): using ordered data mode [pid 5073] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./84/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./84") = 0 [pid 5073] mkdir("./85", 0777) = 0 [ 153.900764][ T6094] reiserfs: using flush barriers [ 153.900852][ T6092] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6098] <... write resumed>) = 4194304 [pid 6100] 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"..., 4194304 [pid 6098] munmap(0x7f7f7af80000, 4194304 [pid 6097] <... write resumed>) = 4194304 [pid 5073] <... openat resumed>) = 3 [pid 6098] <... munmap resumed>) = 0 [pid 6097] munmap(0x7f7f7af80000, 4194304 [pid 6092] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6098] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6097] <... munmap resumed>) = 0 [pid 6092] creat("./file0/file0", 0202 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6098] <... openat resumed>) = 4 [pid 6097] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6092] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] close(3 [pid 6098] ioctl(4, LOOP_SET_FD, 3 [pid 6097] <... openat resumed>) = 4 [pid 6092] exit_group(0 [pid 5073] <... close resumed>) = 0 [pid 6097] ioctl(4, LOOP_SET_FD, 3 [pid 6092] <... exit_group resumed>) = ? [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6098] <... ioctl resumed>) = 0 [pid 6092] +++ exited with 0 +++ [pid 6098] close(3 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6101 [pid 6098] <... close resumed>) = 0 [pid 6098] mkdir("./file0", 0777 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6092, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 6098] <... mkdir resumed>) = 0 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 6098] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... restart_syscall resumed>) = 0 [pid 5072] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6101 attached ) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6101] chdir("./85" [pid 5072] <... openat resumed>) = 3 [pid 6101] <... chdir resumed>) = 0 [pid 5072] fstat(3, [pid 6101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 153.942128][ T6092] overlayfs: failed to resolve './file0': -2 [ 153.944402][ T6094] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 153.969613][ T6098] loop2: detected capacity change from 0 to 8192 [ 153.979066][ T6097] loop1: detected capacity change from 0 to 8192 [pid 6101] <... prctl resumed>) = 0 [pid 5072] getdents64(3, [pid 6101] setpgid(0, 0) = 0 [pid 6101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6101] write(3, "1000", 4 [pid 6097] <... ioctl resumed>) = 0 [pid 6101] <... write resumed>) = 4 [pid 6097] close(3 [pid 6101] close(3 [pid 6097] <... close resumed>) = 0 [pid 6101] <... close resumed>) = 0 [pid 6097] mkdir("./file0", 0777 [pid 6101] symlink("/dev/binderfs", "./binderfs" [pid 6097] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6101] <... symlink resumed>) = 0 [pid 6097] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6101] memfd_create("syzkaller", 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6101] <... memfd_create resumed>) = 3 [pid 5072] lstat("./84/binderfs", [pid 6101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6101] <... mmap resumed>) = 0x7f7f7af80000 [pid 6100] <... write resumed>) = 4194304 [pid 5072] unlink("./84/binderfs" [pid 6100] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... unlink resumed>) = 0 [pid 6100] <... munmap resumed>) = 0 [pid 5072] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 153.996594][ T6098] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 154.003936][ T6094] REISERFS (device loop3): checking transaction log (loop3) [ 154.017221][ T6098] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 154.027432][ T6098] REISERFS (device loop2): using ordered data mode [ 154.034419][ T6094] REISERFS (device loop3): Using r5 hash to sort names [pid 6100] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6100] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6100] close(3) = 0 [pid 6100] mkdir("./file0", 0777) = 0 [ 154.041497][ T6094] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 154.050326][ T6100] loop0: detected capacity change from 0 to 8192 [ 154.054467][ T6097] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 154.063187][ T6098] reiserfs: using flush barriers [ 154.073598][ T6094] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6100] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6101] 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"..., 4194304 [pid 6094] <... mount resumed>) = 0 [pid 6094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6094] chdir("./file0") = 0 [pid 6094] ioctl(4, LOOP_CLR_FD) = 0 [pid 6094] close(4) = 0 [pid 6094] mkdir("./file1", 000) = 0 [pid 6094] mkdir("./bus", 000) = 0 [ 154.091373][ T6097] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 154.103951][ T6100] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 154.117267][ T6097] REISERFS (device loop1): using ordered data mode [ 154.124724][ T6098] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 154.135244][ T6094] overlayfs: upper fs needs to support d_type. [ 154.141183][ T6098] REISERFS (device loop2): checking transaction log (loop2) [ 154.154608][ T6100] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 154.164899][ T6098] REISERFS (device loop2): Using r5 hash to sort names [ 154.167419][ T6100] REISERFS (device loop0): using ordered data mode [ 154.171949][ T6098] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6094] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6098] <... mount resumed>) = 0 [pid 6098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 154.194401][ T6097] reiserfs: using flush barriers [ 154.195378][ T6098] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 154.208862][ T6100] reiserfs: using flush barriers [ 154.214067][ T6094] overlayfs: upper fs does not support tmpfile. [ 154.221371][ T6100] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6098] <... openat resumed>) = 3 [pid 5072] lstat("./84/file0", [pid 6098] chdir("./file0") = 0 [pid 6098] ioctl(4, LOOP_CLR_FD) = 0 [pid 6098] close(4) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6098] mkdir("./file1", 000 [pid 5072] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6098] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6098] mkdir("./bus", 000) = 0 [ 154.223886][ T6097] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 154.238093][ T6100] REISERFS (device loop0): checking transaction log (loop0) [ 154.261835][ T6094] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 154.272160][ T6100] REISERFS (device loop0): Using r5 hash to sort names [ 154.280113][ T6100] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6098] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6100] <... mount resumed>) = 0 [pid 6094] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] getdents64(4, [pid 6101] <... write resumed>) = 4194304 [pid 6100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6094] creat("./file0/file0", 0202 [pid 6101] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6101] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6094] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6101] <... openat resumed>) = 4 [pid 6100] <... openat resumed>) = 3 [pid 6094] exit_group(0 [pid 5072] close(4 [pid 6101] ioctl(4, LOOP_SET_FD, 3 [ 154.285349][ T6098] overlayfs: upper fs needs to support d_type. [ 154.295220][ T6094] overlayfs: failed to resolve './file0': -2 [ 154.305920][ T6100] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 154.315265][ T6098] overlayfs: upper fs does not support tmpfile. [ 154.322709][ T6098] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 154.334384][ T6098] overlayfs: failed to resolve './file0': -2 [pid 6100] chdir("./file0" [pid 6098] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6094] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 6100] <... chdir resumed>) = 0 [pid 6098] creat("./file0/file0", 0202 [pid 6094] +++ exited with 0 +++ [pid 5072] rmdir("./84/file0" [pid 6100] ioctl(4, LOOP_CLR_FD [pid 6098] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... rmdir resumed>) = 0 [pid 6100] <... ioctl resumed>) = 0 [pid 6098] exit_group(0 [pid 5072] getdents64(3, [pid 6100] close(4 [pid 6098] <... exit_group resumed>) = ? [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6101] <... ioctl resumed>) = 0 [pid 6100] <... close resumed>) = 0 [pid 6101] close(3 [pid 6100] mkdir("./file1", 000 [pid 6098] +++ exited with 0 +++ [pid 5072] close(3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6094, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6101] <... close resumed>) = 0 [pid 6100] <... mkdir resumed>) = 0 [pid 5071] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6101] mkdir("./file0", 0777 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6098, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 6101] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 6101] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6100] mkdir("./bus", 000 [pid 5072] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6100] <... mkdir resumed>) = 0 [ 154.347588][ T6097] REISERFS (device loop1): checking transaction log (loop1) [ 154.349117][ T6101] loop5: detected capacity change from 0 to 8192 [ 154.367809][ T6097] REISERFS (device loop1): Using r5 hash to sort names [ 154.383957][ T6097] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] rmdir("./84" [pid 5071] getdents64(3, [pid 5070] umount2("./83", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6100] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./83", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6097] <... mount resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 6097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] mkdir("./85", 0777 [pid 5071] lstat("./83/binderfs", [pid 5070] fstat(3, [pid 6097] <... openat resumed>) = 3 [ 154.384222][ T6101] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 154.397121][ T6097] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 154.420847][ T6101] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 154.420934][ T6100] overlayfs: upper fs needs to support d_type. [ 154.430099][ T6101] REISERFS (device loop5): using ordered data mode [ 154.442756][ T6101] reiserfs: using flush barriers [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] unlink("./83/binderfs" [pid 5070] getdents64(3, [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./83/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6097] chdir("./file0" [pid 5072] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6097] <... chdir resumed>) = 0 [pid 5070] lstat("./83/binderfs", [pid 6097] ioctl(4, LOOP_CLR_FD [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6097] <... ioctl resumed>) = 0 [pid 5070] unlink("./83/binderfs" [pid 6097] close(4 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... unlink resumed>) = 0 [pid 6097] <... close resumed>) = 0 [pid 5070] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6097] mkdir("./file1", 000) = 0 [pid 6097] mkdir("./bus", 000 [pid 5072] <... openat resumed>) = 3 [pid 6097] <... mkdir resumed>) = 0 [ 154.449364][ T6100] overlayfs: upper fs does not support tmpfile. [ 154.456307][ T6101] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 154.472843][ T6101] REISERFS (device loop5): checking transaction log (loop5) [ 154.481294][ T6101] REISERFS (device loop5): Using r5 hash to sort names [ 154.488617][ T6100] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6097] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 6101] <... mount resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6101] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6106 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6101] <... openat resumed>) = 3 [pid 5071] lstat("./83/file0", [pid 6101] chdir("./file0") = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6101] ioctl(4, LOOP_CLR_FD [ 154.492885][ T6097] overlayfs: upper fs needs to support d_type. [ 154.501983][ T6097] overlayfs: upper fs does not support tmpfile. [ 154.513776][ T6101] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 154.521203][ T6097] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 154.532043][ T6101] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6106 attached [pid 6101] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] chdir("./85" [pid 6101] close(4 [pid 5071] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6106] <... chdir resumed>) = 0 [pid 6101] <... close resumed>) = 0 [pid 6097] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... openat resumed>) = 4 [pid 6106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6101] mkdir("./file1", 000 [pid 6097] creat("./file0/file0", 0202 [pid 5071] fstat(4, [pid 6106] <... prctl resumed>) = 0 [pid 6106] setpgid(0, 0 [pid 6101] <... mkdir resumed>) = 0 [pid 6100] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6097] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6106] <... setpgid resumed>) = 0 [pid 6101] mkdir("./bus", 000 [pid 6100] creat("./file0/file0", 0202 [pid 6097] exit_group(0 [pid 5071] getdents64(4, [pid 6106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6101] <... mkdir resumed>) = 0 [pid 6100] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6097] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6106] <... openat resumed>) = 3 [pid 6101] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6100] exit_group(0 [pid 6097] +++ exited with 0 +++ [pid 5071] getdents64(4, [pid 6106] write(3, "1000", 4 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6097, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6106] <... write resumed>) = 4 [pid 6100] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] fstat(3, [pid 6106] close(3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6106] <... close resumed>) = 0 [pid 6100] +++ exited with 0 +++ [pid 5071] close(4 [pid 5069] getdents64(3, [pid 6106] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 154.553944][ T6097] overlayfs: failed to resolve './file0': -2 [ 154.567799][ T6100] overlayfs: failed to resolve './file0': -2 [ 154.584890][ T6101] overlayfs: upper fs needs to support d_type. [ 154.591124][ T6101] overlayfs: upper fs does not support tmpfile. [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6100, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... restart_syscall resumed>) = 0 [pid 5069] lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./84/binderfs" [pid 5068] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6106] <... symlink resumed>) = 0 [pid 5071] rmdir("./83/file0" [pid 5069] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6106] memfd_create("syzkaller", 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./85/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./85/binderfs") = 0 [pid 6106] <... memfd_create resumed>) = 3 [pid 5068] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] getdents64(3, [pid 6106] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./83") = 0 [pid 5071] mkdir("./84", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6107 [pid 5070] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6107 attached [pid 6107] chdir("./84") = 0 [ 154.613183][ T6101] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6107] setpgid(0, 0) = 0 [pid 6107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6107] write(3, "1000", 4 [pid 5070] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./83/file0", [pid 6107] <... write resumed>) = 4 [pid 6107] close(3) = 0 [pid 6107] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6107] memfd_create("syzkaller", 0) = 3 [pid 6107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./83/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./83/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./83/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./83") = 0 [pid 5070] mkdir("./84", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6101] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6101] creat("./file0/file0", 0202 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6108 [pid 6101] <... creat resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 6108 attached [pid 6108] chdir("./84" [pid 6101] exit_group(0) = ? [pid 6108] <... chdir resumed>) = 0 [pid 6108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6108] setpgid(0, 0) = 0 [ 154.685839][ T6101] overlayfs: failed to resolve './file0': -2 [pid 6108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6108] write(3, "1000", 4) = 4 [pid 6108] close(3) = 0 [pid 6101] +++ exited with 0 +++ [pid 6108] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6101, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5068] <... umount2 resumed>) = 0 [pid 6108] memfd_create("syzkaller", 0 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 6108] <... memfd_create resumed>) = 3 [pid 5073] <... restart_syscall resumed>) = 0 [pid 6108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5073] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 6106] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6107] 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"..., 4194304 [pid 5073] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./84/file0", [pid 5073] fstat(3, [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./85/file0", [pid 5069] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(3, [pid 5069] <... openat resumed>) = 4 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] fstat(4, [pid 5068] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5068] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] lstat("./85/binderfs", [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... openat resumed>) = 4 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] getdents64(4, [pid 5068] fstat(4, [pid 5073] unlink("./85/binderfs" [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5069] close(4 [pid 5068] getdents64(4, [pid 5073] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] rmdir("./84/file0" [pid 5068] getdents64(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6108] 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"..., 4194304 [pid 5069] getdents64(3, [pid 5068] close(4 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... close resumed>) = 0 [pid 5069] close(3 [pid 5068] rmdir("./85/file0" [pid 5069] <... close resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5069] rmdir("./84" [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5068] close(3 [pid 5069] mkdir("./85", 0777 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./85" [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] mkdir("./86", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5068] <... mkdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... openat resumed>) = 3 [pid 5069] close(3 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5069] <... close resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6109 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6110 ./strace-static-x86_64: Process 6109 attached [pid 6109] chdir("./86") = 0 [pid 6109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6109] setpgid(0, 0) = 0 [pid 6109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6109] write(3, "1000", 4) = 4 [pid 6109] close(3) = 0 ./strace-static-x86_64: Process 6110 attached [pid 6109] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6110] chdir("./85" [pid 6109] memfd_create("syzkaller", 0 [pid 6106] <... write resumed>) = 4194304 [pid 6110] <... chdir resumed>) = 0 [pid 6109] <... memfd_create resumed>) = 3 [pid 6109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6106] munmap(0x7f7f7af80000, 4194304 [pid 6109] <... mmap resumed>) = 0x7f7f7af80000 [pid 6110] <... prctl resumed>) = 0 [pid 6106] <... munmap resumed>) = 0 [pid 6110] setpgid(0, 0 [pid 6106] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6110] <... setpgid resumed>) = 0 [pid 6106] <... openat resumed>) = 4 [pid 6110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6106] ioctl(4, LOOP_SET_FD, 3 [pid 6110] <... openat resumed>) = 3 [pid 6110] write(3, "1000", 4) = 4 [pid 6110] close(3) = 0 [pid 6110] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6110] memfd_create("syzkaller", 0) = 3 [pid 6110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6106] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 6106] close(3) = 0 [pid 6107] <... write resumed>) = 4194304 [pid 6106] mkdir("./file0", 0777 [pid 6107] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6106] <... mkdir resumed>) = 0 [pid 5073] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6107] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6106] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6107] <... openat resumed>) = 4 [pid 5073] lstat("./85/file0", [pid 6107] ioctl(4, LOOP_SET_FD, 3 [ 154.887159][ T6106] loop4: detected capacity change from 0 to 8192 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6110] 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"..., 4194304 [pid 6108] <... write resumed>) = 4194304 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./85/file0" [pid 6108] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 6108] <... munmap resumed>) = 0 [pid 5073] getdents64(3, [pid 6108] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6108] <... openat resumed>) = 4 [pid 5073] close(3 [pid 6109] 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"..., 4194304 [pid 6108] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./85") = 0 [pid 6107] <... ioctl resumed>) = 0 [pid 5073] mkdir("./86", 0777 [pid 6107] close(3 [pid 5073] <... mkdir resumed>) = 0 [pid 6107] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6107] mkdir("./file0", 0777 [pid 5073] <... openat resumed>) = 3 [pid 6107] <... mkdir resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6107] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 6108] <... ioctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6108] close(3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6108] <... close resumed>) = 0 [pid 6108] mkdir("./file0", 0777 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6113 [ 154.942576][ T6107] loop3: detected capacity change from 0 to 8192 [ 154.953229][ T6106] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 154.981496][ T6108] loop2: detected capacity change from 0 to 8192 ./strace-static-x86_64: Process 6113 attached [pid 6110] <... write resumed>) = 4194304 [pid 6109] <... write resumed>) = 4194304 [pid 6108] <... mkdir resumed>) = 0 [pid 6113] chdir("./86" [pid 6110] munmap(0x7f7f7af80000, 4194304 [pid 6109] munmap(0x7f7f7af80000, 4194304 [pid 6108] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6113] <... chdir resumed>) = 0 [pid 6110] <... munmap resumed>) = 0 [pid 6109] <... munmap resumed>) = 0 [pid 6113] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6110] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6109] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6113] <... prctl resumed>) = 0 [pid 6110] <... openat resumed>) = 4 [pid 6109] <... openat resumed>) = 4 [pid 6113] setpgid(0, 0 [pid 6110] ioctl(4, LOOP_SET_FD, 3 [pid 6109] ioctl(4, LOOP_SET_FD, 3 [pid 6113] <... setpgid resumed>) = 0 [pid 6109] <... ioctl resumed>) = 0 [ 155.017830][ T6106] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 155.028211][ T6107] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 155.039759][ T6109] loop0: detected capacity change from 0 to 8192 [ 155.042019][ T6110] loop1: detected capacity change from 0 to 8192 [ 155.047679][ T6106] REISERFS (device loop4): using ordered data mode [pid 6113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6109] close(3 [pid 6110] <... ioctl resumed>) = 0 [pid 6110] close(3) = 0 [pid 6110] mkdir("./file0", 0777 [pid 6113] <... openat resumed>) = 3 [pid 6109] <... close resumed>) = 0 [pid 6113] write(3, "1000", 4 [pid 6109] mkdir("./file0", 0777 [pid 6110] <... mkdir resumed>) = 0 [pid 6110] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6113] <... write resumed>) = 4 [pid 6109] <... mkdir resumed>) = 0 [pid 6113] close(3 [ 155.056426][ T6107] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 155.061007][ T6106] reiserfs: using flush barriers [ 155.075720][ T6108] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 155.081319][ T6107] REISERFS (device loop3): using ordered data mode [ 155.090434][ T6108] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 155.097459][ T6110] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6109] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6113] <... close resumed>) = 0 [pid 6113] symlink("/dev/binderfs", "./binderfs") = 0 [ 155.104806][ T6106] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.118592][ T6107] reiserfs: using flush barriers [ 155.134675][ T6110] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 155.148489][ T6110] REISERFS (device loop1): using ordered data mode [ 155.150760][ T6108] REISERFS (device loop2): using ordered data mode [ 155.155499][ T6110] reiserfs: using flush barriers [pid 6113] memfd_create("syzkaller", 0) = 3 [pid 6113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 155.163560][ T6109] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 155.168914][ T6106] REISERFS (device loop4): checking transaction log (loop4) [ 155.186977][ T6110] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.193442][ T6107] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.204409][ T6110] REISERFS (device loop1): checking transaction log (loop1) [ 155.226763][ T6108] reiserfs: using flush barriers [ 155.233185][ T6108] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.249398][ T6110] REISERFS (device loop1): Using r5 hash to sort names [ 155.256609][ T6110] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6110] <... mount resumed>) = 0 [pid 6110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 155.269498][ T6106] REISERFS (device loop4): Using r5 hash to sort names [ 155.269598][ T6108] REISERFS (device loop2): checking transaction log (loop2) [ 155.282772][ T6109] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 155.283790][ T6110] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 155.302897][ T6108] REISERFS (device loop2): Using r5 hash to sort names [ 155.310217][ T6107] REISERFS (device loop3): checking transaction log (loop3) [pid 6110] chdir("./file0" [pid 6113] 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"..., 4194304 [pid 6110] <... chdir resumed>) = 0 [ 155.318036][ T6108] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 155.323662][ T6106] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 155.331008][ T6108] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 155.352188][ T6109] REISERFS (device loop0): using ordered data mode [ 155.353467][ T6107] REISERFS (device loop3): Using r5 hash to sort names [pid 6110] ioctl(4, LOOP_CLR_FD) = 0 [pid 6108] <... mount resumed>) = 0 [pid 6110] close(4 [pid 6108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6107] <... mount resumed>) = 0 [pid 6110] <... close resumed>) = 0 [pid 6108] <... openat resumed>) = 3 [pid 6107] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6110] mkdir("./file1", 000 [pid 6108] chdir("./file0" [pid 6107] <... openat resumed>) = 3 [pid 6106] <... mount resumed>) = 0 [pid 6110] <... mkdir resumed>) = 0 [pid 6108] <... chdir resumed>) = 0 [pid 6107] chdir("./file0" [ 155.366066][ T6107] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 155.379442][ T6107] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 155.385129][ T6109] reiserfs: using flush barriers [ 155.389224][ T6106] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6110] mkdir("./bus", 000 [pid 6108] ioctl(4, LOOP_CLR_FD [pid 6107] <... chdir resumed>) = 0 [pid 6110] <... mkdir resumed>) = 0 [pid 6108] <... ioctl resumed>) = 0 [pid 6107] ioctl(4, LOOP_CLR_FD [pid 6106] <... openat resumed>) = 3 [pid 6110] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6108] close(4 [pid 6107] <... ioctl resumed>) = 0 [pid 6106] chdir("./file0" [pid 6108] <... close resumed>) = 0 [pid 6107] close(4 [pid 6106] <... chdir resumed>) = 0 [pid 6108] mkdir("./file1", 000) = 0 [pid 6108] mkdir("./bus", 000) = 0 [ 155.416857][ T6109] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.437908][ T6109] REISERFS (device loop0): checking transaction log (loop0) [ 155.446831][ T6110] overlayfs: upper fs needs to support d_type. [ 155.453035][ T6110] overlayfs: upper fs does not support tmpfile. [ 155.460889][ T6110] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6108] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6107] <... close resumed>) = 0 [pid 6106] ioctl(4, LOOP_CLR_FD [pid 6107] mkdir("./file1", 000 [pid 6106] <... ioctl resumed>) = 0 [pid 6107] <... mkdir resumed>) = 0 [pid 6106] close(4 [pid 6110] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6113] <... write resumed>) = 4194304 [pid 6113] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6113] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6107] mkdir("./bus", 000 [pid 6106] <... close resumed>) = 0 [pid 6110] creat("./file0/file0", 0202 [pid 6113] <... openat resumed>) = 4 [ 155.469579][ T6108] overlayfs: upper fs needs to support d_type. [ 155.469879][ T6110] overlayfs: failed to resolve './file0': -2 [ 155.481081][ T6108] overlayfs: upper fs does not support tmpfile. [ 155.482020][ T6109] REISERFS (device loop0): Using r5 hash to sort names [ 155.499978][ T6109] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6113] ioctl(4, LOOP_SET_FD, 3 [pid 6110] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6109] <... mount resumed>) = 0 [pid 6107] <... mkdir resumed>) = 0 [pid 6106] mkdir("./file1", 000 [pid 6110] exit_group(0 [pid 6109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6107] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6106] <... mkdir resumed>) = 0 [pid 6110] <... exit_group resumed>) = ? [pid 6109] <... openat resumed>) = 3 [pid 6113] <... ioctl resumed>) = 0 [pid 6110] +++ exited with 0 +++ [pid 6106] mkdir("./bus", 000 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6110, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6109] chdir("./file0" [pid 6106] <... mkdir resumed>) = 0 [pid 6109] <... chdir resumed>) = 0 [pid 6108] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6106] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6109] ioctl(4, LOOP_CLR_FD [pid 5069] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 155.513870][ T6109] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 155.518434][ T6113] loop5: detected capacity change from 0 to 8192 [ 155.524699][ T6108] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 155.540333][ T6108] overlayfs: failed to resolve './file0': -2 [ 155.555349][ T6107] overlayfs: upper fs needs to support d_type. [ 155.561569][ T6107] overlayfs: upper fs does not support tmpfile. [pid 5069] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6109] <... ioctl resumed>) = 0 [pid 6108] creat("./file0/file0", 0202 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6109] close(4 [pid 6108] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] lstat("./85/binderfs", [pid 6113] close(3 [pid 6109] <... close resumed>) = 0 [pid 6108] exit_group(0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6113] <... close resumed>) = 0 [pid 5069] unlink("./85/binderfs" [pid 6113] mkdir("./file0", 0777 [pid 5069] <... unlink resumed>) = 0 [pid 6113] <... mkdir resumed>) = 0 [pid 5069] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6113] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6109] mkdir("./file1", 000 [pid 6108] <... exit_group resumed>) = ? [pid 6109] <... mkdir resumed>) = 0 [pid 6108] +++ exited with 0 +++ [pid 6109] mkdir("./bus", 000) = 0 [pid 6109] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6108, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5070] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 155.577619][ T6106] overlayfs: upper fs needs to support d_type. [ 155.593530][ T6106] overlayfs: upper fs does not support tmpfile. [ 155.600751][ T6106] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 155.620119][ T6109] overlayfs: upper fs needs to support d_type. [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./84/binderfs") = 0 [pid 5070] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6106] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6106] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6106] exit_group(0) = ? [pid 6106] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6106, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5069] <... umount2 resumed>) = 0 [ 155.630789][ T6107] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 155.650406][ T6113] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 155.652102][ T6109] overlayfs: upper fs does not support tmpfile. [ 155.673208][ T6106] overlayfs: failed to resolve './file0': -2 [pid 5072] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 5069] lstat("./85/file0", [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5069] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 5072] lstat("./85/binderfs", [pid 5069] fstat(4, [pid 6109] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6109] creat("./file0/file0", 0202 [pid 5072] unlink("./85/binderfs" [ 155.694034][ T6113] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 155.704672][ T6109] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 155.708742][ T6107] overlayfs: failed to resolve './file0': -2 [ 155.712885][ T6109] overlayfs: failed to resolve './file0': -2 [pid 5069] getdents64(4, [pid 6109] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 6109] exit_group(0 [pid 5070] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./85/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./85") = 0 [pid 5069] mkdir("./86", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 6109] <... exit_group resumed>) = ? [pid 6107] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 155.742166][ T6113] REISERFS (device loop5): using ordered data mode [ 155.749584][ T6113] reiserfs: using flush barriers [ 155.756370][ T6113] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 155.773773][ T6113] REISERFS (device loop5): checking transaction log (loop5) [ 155.786491][ T6113] REISERFS (device loop5): Using r5 hash to sort names [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 6109] +++ exited with 0 +++ [pid 6107] creat("./file0/file0", 0202 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6107] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] lstat("./84/file0", [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6109, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6118 [pid 6107] exit_group(0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6118 attached [pid 6107] <... exit_group resumed>) = ? [pid 5070] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6118] chdir("./86" [pid 6113] <... mount resumed>) = 0 [pid 6107] +++ exited with 0 +++ [pid 6118] <... chdir resumed>) = 0 [pid 6113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6107, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6113] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6118] <... prctl resumed>) = 0 [pid 6113] chdir("./file0" [pid 6118] setpgid(0, 0 [pid 6113] <... chdir resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 6118] <... setpgid resumed>) = 0 [pid 6113] ioctl(4, LOOP_CLR_FD [pid 5070] fstat(4, [pid 6118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6113] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6118] <... openat resumed>) = 3 [pid 6113] close(4 [pid 5072] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./84", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6118] write(3, "1000", 4 [pid 6113] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6118] <... write resumed>) = 4 [pid 6113] mkdir("./file1", 000 [pid 5072] lstat("./85/file0", [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6118] close(3 [pid 6113] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./84", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, [pid 5068] <... openat resumed>) = 3 [pid 6118] <... close resumed>) = 0 [pid 6113] mkdir("./bus", 000 [pid 5072] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] fstat(3, [pid 6118] symlink("/dev/binderfs", "./binderfs" [pid 6113] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(3, [pid 5070] close(4 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6118] <... symlink resumed>) = 0 [ 155.793936][ T6113] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 155.806919][ T6113] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6113] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] getdents64(3, [pid 6118] memfd_create("syzkaller", 0 [pid 5072] <... openat resumed>) = 4 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./84/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./84/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./84/binderfs") = 0 [pid 5071] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6118] <... memfd_create resumed>) = 3 [pid 6113] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] fstat(4, [pid 5070] rmdir("./84/file0" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6113] creat("./file0/file0", 0202 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6118] <... mmap resumed>) = 0x7f7f7af80000 [pid 6113] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] getdents64(4, [pid 5070] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6113] exit_group(0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./86/binderfs", [pid 6113] <... exit_group resumed>) = ? [pid 5072] getdents64(4, [pid 5070] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6113] +++ exited with 0 +++ [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] unlink("./86/binderfs" [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6113, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5072] close(4 [pid 5070] rmdir("./84" [pid 5068] <... unlink resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] rmdir("./85/file0" [pid 5070] mkdir("./85", 0777 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] rmdir("./85" [ 155.856930][ T6113] overlayfs: upper fs needs to support d_type. [ 155.867113][ T6113] overlayfs: upper fs does not support tmpfile. [ 155.874753][ T6113] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 155.884104][ T6113] overlayfs: failed to resolve './file0': -2 [pid 5070] close(3 [pid 5073] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5072] mkdir("./86", 0777 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6119 attached [pid 6118] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... mkdir resumed>) = 0 [pid 5071] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6119] chdir("./85" [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6119 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5073] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] lstat("./84/file0", [pid 5073] fstat(3, [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6119] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6120 ./strace-static-x86_64: Process 6120 attached [pid 6120] chdir("./86" [pid 5071] umount2("./84/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] openat(AT_FDCWD, "./84/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 4 [pid 5073] lstat("./86/binderfs", [pid 5071] fstat(4, [pid 6120] <... chdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] unlink("./86/binderfs" [pid 5071] getdents64(4, [pid 6120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6120] setpgid(0, 0 [pid 5073] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6120] <... setpgid resumed>) = 0 [pid 5071] close(4 [pid 6120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6120] <... openat resumed>) = 3 [pid 6119] <... prctl resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 6120] write(3, "1000", 4 [pid 5071] rmdir("./84/file0" [pid 6120] <... write resumed>) = 4 [pid 6119] setpgid(0, 0 [pid 6120] close(3) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 6120] symlink("/dev/binderfs", "./binderfs" [pid 6119] <... setpgid resumed>) = 0 [pid 5071] getdents64(3, [pid 6120] <... symlink resumed>) = 0 [pid 6120] memfd_create("syzkaller", 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6120] <... memfd_create resumed>) = 3 [pid 6119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] close(3 [pid 6120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6119] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 6120] <... mmap resumed>) = 0x7f7f7af80000 [pid 6119] write(3, "1000", 4 [pid 5071] rmdir("./84" [pid 6119] <... write resumed>) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 6119] close(3 [pid 5071] mkdir("./85", 0777 [pid 6119] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6119] symlink("/dev/binderfs", "./binderfs" [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6119] <... symlink resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6119] memfd_create("syzkaller", 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6119] <... memfd_create resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] close(3 [pid 6119] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6121 ./strace-static-x86_64: Process 6121 attached [pid 6121] chdir("./85") = 0 [pid 6121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6121] setpgid(0, 0) = 0 [pid 6121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6121] write(3, "1000", 4) = 4 [pid 6121] close(3) = 0 [pid 6121] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6121] memfd_create("syzkaller", 0) = 3 [pid 6121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./86/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [pid 6120] 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"..., 4194304 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 6119] 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"..., 4194304 [pid 6118] <... write resumed>) = 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 6118] munmap(0x7f7f7af80000, 4194304 [pid 5073] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./86/file0" [pid 6118] <... munmap resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... rmdir resumed>) = 0 [pid 6118] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] lstat("./86/file0", [pid 5068] getdents64(3, [pid 6118] <... openat resumed>) = 4 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6118] ioctl(4, LOOP_SET_FD, 3 [pid 5073] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3 [pid 6121] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] rmdir("./86" [pid 5073] <... openat resumed>) = 4 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] fstat(4, [pid 5068] mkdir("./87", 0777 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5073] getdents64(4, [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... openat resumed>) = 3 [pid 5073] getdents64(4, [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(4 [pid 5068] close(3 [pid 5073] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] rmdir("./86/file0" [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6122 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 6118] <... ioctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6118] close(3 [pid 5073] rmdir("./86" [pid 6118] <... close resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 6118] mkdir("./file0", 0777 [pid 5073] mkdir("./87", 0777 [pid 6118] <... mkdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 6118] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 6122 attached [pid 6120] <... write resumed>) = 4194304 [pid 5073] <... openat resumed>) = 3 [ 156.126185][ T6118] loop1: detected capacity change from 0 to 8192 [pid 6122] chdir("./87" [pid 6120] munmap(0x7f7f7af80000, 4194304 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6121] <... write resumed>) = 4194304 [pid 6122] <... chdir resumed>) = 0 [pid 6121] munmap(0x7f7f7af80000, 4194304 [pid 6120] <... munmap resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] close(3 [pid 6121] <... munmap resumed>) = 0 [pid 6122] <... prctl resumed>) = 0 [pid 6120] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6119] <... write resumed>) = 4194304 [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6124 ./strace-static-x86_64: Process 6124 attached [pid 6124] chdir("./87") = 0 [pid 6124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6124] setpgid(0, 0 [pid 6122] setpgid(0, 0 [pid 6121] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6120] <... openat resumed>) = 4 [pid 6119] munmap(0x7f7f7af80000, 4194304 [pid 6124] <... setpgid resumed>) = 0 [pid 6124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6124] write(3, "1000", 4) = 4 [pid 6124] close(3) = 0 [pid 6122] <... setpgid resumed>) = 0 [pid 6120] ioctl(4, LOOP_SET_FD, 3 [pid 6124] symlink("/dev/binderfs", "./binderfs" [pid 6121] <... openat resumed>) = 4 [pid 6119] <... munmap resumed>) = 0 [pid 6124] <... symlink resumed>) = 0 [pid 6124] memfd_create("syzkaller", 0) = 3 [ 156.174795][ T6118] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 156.204098][ T6118] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 156.213742][ T6118] REISERFS (device loop1): using ordered data mode [pid 6124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6121] ioctl(4, LOOP_SET_FD, 3 [pid 6120] <... ioctl resumed>) = 0 [pid 6119] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6122] <... openat resumed>) = 3 [pid 6120] close(3 [pid 6122] write(3, "1000", 4 [pid 6120] <... close resumed>) = 0 [pid 6119] <... openat resumed>) = 4 [pid 6122] <... write resumed>) = 4 [pid 6121] <... ioctl resumed>) = 0 [pid 6120] mkdir("./file0", 0777 [pid 6119] ioctl(4, LOOP_SET_FD, 3 [pid 6122] close(3 [pid 6121] close(3 [pid 6120] <... mkdir resumed>) = 0 [ 156.221284][ T6118] reiserfs: using flush barriers [ 156.226605][ T6120] loop4: detected capacity change from 0 to 8192 [ 156.234581][ T6118] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.251292][ T6121] loop3: detected capacity change from 0 to 8192 [ 156.258441][ T6118] REISERFS (device loop1): checking transaction log (loop1) [ 156.267143][ T6119] loop2: detected capacity change from 0 to 8192 [pid 6122] <... close resumed>) = 0 [pid 6121] <... close resumed>) = 0 [pid 6120] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6122] symlink("/dev/binderfs", "./binderfs" [pid 6121] mkdir("./file0", 0777 [pid 6119] <... ioctl resumed>) = 0 [pid 6122] <... symlink resumed>) = 0 [pid 6121] <... mkdir resumed>) = 0 [pid 6119] close(3) = 0 [pid 6122] memfd_create("syzkaller", 0 [pid 6121] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6119] mkdir("./file0", 0777 [pid 6122] <... memfd_create resumed>) = 3 [pid 6119] <... mkdir resumed>) = 0 [pid 6124] 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"..., 4194304 [pid 6122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6119] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6122] <... mmap resumed>) = 0x7f7f7af80000 [ 156.269471][ T6118] REISERFS (device loop1): Using r5 hash to sort names [ 156.285134][ T6118] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 156.299063][ T6120] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 156.312205][ T6121] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6122] 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"..., 4194304 [pid 6118] <... mount resumed>) = 0 [pid 6118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 156.326972][ T6120] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 156.328480][ T6118] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 156.338591][ T6121] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 156.355447][ T6119] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6118] chdir("./file0") = 0 [pid 6118] ioctl(4, LOOP_CLR_FD) = 0 [pid 6118] close(4) = 0 [pid 6118] mkdir("./file1", 000) = 0 [pid 6118] mkdir("./bus", 000) = 0 [ 156.378330][ T6119] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 156.387324][ T6120] REISERFS (device loop4): using ordered data mode [ 156.397782][ T6120] reiserfs: using flush barriers [ 156.406912][ T6118] overlayfs: upper fs needs to support d_type. [pid 6118] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6122] <... write resumed>) = 4194304 [pid 6124] <... write resumed>) = 4194304 [ 156.409560][ T6120] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.431824][ T6120] REISERFS (device loop4): checking transaction log (loop4) [ 156.437957][ T6121] REISERFS (device loop3): using ordered data mode [ 156.442065][ T6120] REISERFS (device loop4): Using r5 hash to sort names [ 156.452259][ T6118] overlayfs: upper fs does not support tmpfile. [ 156.454008][ T6120] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 156.459232][ T6119] REISERFS (device loop2): using ordered data mode [pid 6124] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6122] munmap(0x7f7f7af80000, 4194304 [pid 6120] <... mount resumed>) = 0 [pid 6120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6120] chdir("./file0") = 0 [pid 6120] ioctl(4, LOOP_CLR_FD) = 0 [pid 6120] close(4 [pid 6124] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6124] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6122] <... munmap resumed>) = 0 [pid 6120] <... close resumed>) = 0 [pid 6120] mkdir("./file1", 000 [pid 6122] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6124] close(3) = 0 [pid 6122] <... openat resumed>) = 4 [pid 6124] mkdir("./file0", 0777 [pid 6122] ioctl(4, LOOP_SET_FD, 3 [pid 6120] <... mkdir resumed>) = 0 [pid 6120] mkdir("./bus", 000) = 0 [pid 6120] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6124] <... mkdir resumed>) = 0 [ 156.473419][ T6120] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 156.479718][ T6118] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 156.496136][ T6124] loop5: detected capacity change from 0 to 8192 [ 156.502735][ T6121] reiserfs: using flush barriers [ 156.510196][ T6122] loop0: detected capacity change from 0 to 8192 [ 156.520465][ T6120] overlayfs: upper fs needs to support d_type. [pid 6124] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6122] <... ioctl resumed>) = 0 [pid 6122] close(3) = 0 [ 156.528473][ T6119] reiserfs: using flush barriers [ 156.529166][ T6121] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.535302][ T6120] overlayfs: upper fs does not support tmpfile. [ 156.551915][ T6118] overlayfs: failed to resolve './file0': -2 [ 156.557447][ T6124] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6122] mkdir("./file0", 0777 [pid 6118] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6122] <... mkdir resumed>) = 0 [pid 6118] creat("./file0/file0", 0202 [pid 6122] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6118] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6120] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 156.563717][ T6121] REISERFS (device loop3): checking transaction log (loop3) [ 156.581031][ T6119] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.583810][ T6120] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 156.599545][ T6121] REISERFS (device loop3): Using r5 hash to sort names [ 156.607352][ T6120] overlayfs: failed to resolve './file0': -2 [ 156.619954][ T6124] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6120] creat("./file0/file0", 0202 [pid 6118] exit_group(0 [pid 6120] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6118] <... exit_group resumed>) = ? [pid 6120] exit_group(0 [pid 6118] +++ exited with 0 +++ [pid 6120] <... exit_group resumed>) = ? [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6118, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6120] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6120, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] fstat(3, [pid 5072] <... openat resumed>) = 3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] fstat(3, [pid 5069] getdents64(3, [pid 6121] <... mount resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6121] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6121] chdir("./file0") = 0 [pid 6121] ioctl(4, LOOP_CLR_FD) = 0 [ 156.626586][ T6121] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 156.630725][ T6124] REISERFS (device loop5): using ordered data mode [ 156.644167][ T6119] REISERFS (device loop2): checking transaction log (loop2) [ 156.648778][ T6124] reiserfs: using flush barriers [ 156.658000][ T6121] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6121] close(4 [pid 5072] getdents64(3, [pid 5069] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6121] <... close resumed>) = 0 [pid 5072] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./86/binderfs", [pid 6121] mkdir("./file1", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 156.670789][ T6122] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 156.684303][ T6124] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.702294][ T6119] REISERFS (device loop2): Using r5 hash to sort names [ 156.709744][ T6122] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 156.713150][ T6124] REISERFS (device loop5): checking transaction log (loop5) [pid 6121] <... mkdir resumed>) = 0 [pid 5072] lstat("./86/binderfs", [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6121] mkdir("./bus", 000 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./86/binderfs" [pid 6121] <... mkdir resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5072] unlink("./86/binderfs" [pid 6121] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [ 156.720573][ T6119] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 156.744208][ T6122] REISERFS (device loop0): using ordered data mode [ 156.744970][ T6121] overlayfs: upper fs needs to support d_type. [ 156.750880][ T6122] reiserfs: using flush barriers [ 156.763275][ T6124] REISERFS (device loop5): Using r5 hash to sort names [pid 5072] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6119] <... mount resumed>) = 0 [pid 6119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6119] chdir("./file0") = 0 [pid 6119] ioctl(4, LOOP_CLR_FD) = 0 [ 156.770427][ T6124] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 156.780454][ T6121] overlayfs: upper fs does not support tmpfile. [ 156.784474][ T6122] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 156.806338][ T6122] REISERFS (device loop0): checking transaction log (loop0) [ 156.813474][ T6119] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6119] close(4) = 0 [pid 6119] mkdir("./file1", 000) = 0 [pid 6119] mkdir("./bus", 000) = 0 [pid 6119] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] <... umount2 resumed>) = 0 [ 156.830621][ T6124] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 156.850006][ T6119] overlayfs: upper fs needs to support d_type. [ 156.851529][ T6121] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 156.873362][ T6119] overlayfs: upper fs does not support tmpfile. [pid 6124] <... mount resumed>) = 0 [pid 5069] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6124] <... openat resumed>) = 3 [pid 5069] lstat("./86/file0", [pid 6124] chdir("./file0" [pid 5072] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6124] <... chdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6124] ioctl(4, LOOP_CLR_FD [pid 5072] lstat("./86/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6124] <... ioctl resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6124] close(4 [pid 5072] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6124] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 6124] mkdir("./file1", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(4, [pid 6124] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6124] mkdir("./bus", 000 [pid 5072] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 6119] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6124] <... mkdir resumed>) = 0 [pid 6124] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6119] creat("./file0/file0", 0202 [pid 5072] fstat(4, [ 156.881110][ T6119] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 156.885350][ T6122] REISERFS (device loop0): Using r5 hash to sort names [ 156.892319][ T6119] overlayfs: failed to resolve './file0': -2 [ 156.906808][ T6121] overlayfs: failed to resolve './file0': -2 [ 156.913266][ T6122] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] getdents64(4, [pid 6122] <... mount resumed>) = 0 [pid 6121] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6119] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6121] creat("./file0/file0", 0202 [pid 6119] exit_group(0 [pid 5072] getdents64(4, [pid 5069] close(4 [pid 6122] <... openat resumed>) = 3 [pid 6121] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6119] <... exit_group resumed>) = ? [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... close resumed>) = 0 [pid 6122] chdir("./file0" [pid 6121] exit_group(0 [pid 6119] +++ exited with 0 +++ [pid 5072] getdents64(4, [pid 5069] rmdir("./86/file0" [pid 6122] <... chdir resumed>) = 0 [pid 6121] <... exit_group resumed>) = ? [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 6122] ioctl(4, LOOP_CLR_FD [pid 6121] +++ exited with 0 +++ [pid 5072] close(4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6119, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5069] getdents64(3, [pid 6122] <... ioctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6121, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6122] close(4 [pid 5072] rmdir("./86/file0" [pid 5070] <... restart_syscall resumed>) = 0 [pid 5069] close(3 [pid 6122] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 6122] mkdir("./file1", 000 [pid 5072] getdents64(3, [pid 5071] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./86" [pid 6122] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./85", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 6122] mkdir("./bus", 000 [pid 5072] close(3 [pid 5071] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./87", 0777 [pid 6122] <... mkdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./85", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... mkdir resumed>) = 0 [pid 6122] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] rmdir("./86" [pid 5071] fstat(3, [pid 5070] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5072] mkdir("./87", 0777 [pid 5071] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] close(3 [pid 5072] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./85/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] lstat("./85/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] lstat("./85/binderfs", [pid 5072] close(3 [pid 5071] unlink("./85/binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6130 [pid 5072] <... close resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] unlink("./85/binderfs" [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 5070] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6131 ./strace-static-x86_64: Process 6131 attached [pid 6131] chdir("./87"./strace-static-x86_64: Process 6130 attached ) = 0 [pid 6131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6130] chdir("./87" [pid 6131] <... prctl resumed>) = 0 [pid 6130] <... chdir resumed>) = 0 [pid 6131] setpgid(0, 0 [pid 6130] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6131] <... setpgid resumed>) = 0 [pid 6130] <... prctl resumed>) = 0 [pid 6131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6130] setpgid(0, 0 [pid 6131] <... openat resumed>) = 3 [pid 6130] <... setpgid resumed>) = 0 [pid 6131] write(3, "1000", 4 [pid 6130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6131] <... write resumed>) = 4 [pid 6130] <... openat resumed>) = 3 [pid 6131] close(3 [pid 6130] write(3, "1000", 4 [pid 6131] <... close resumed>) = 0 [pid 6130] <... write resumed>) = 4 [pid 6131] symlink("/dev/binderfs", "./binderfs" [pid 6130] close(3 [pid 6131] <... symlink resumed>) = 0 [pid 6130] <... close resumed>) = 0 [pid 6131] memfd_create("syzkaller", 0 [pid 6130] symlink("/dev/binderfs", "./binderfs" [pid 6131] <... memfd_create resumed>) = 3 [pid 6130] <... symlink resumed>) = 0 [pid 6131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6130] memfd_create("syzkaller", 0 [pid 6131] <... mmap resumed>) = 0x7f7f7af80000 [ 156.927899][ T6122] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 156.934722][ T6124] overlayfs: upper fs needs to support d_type. [ 156.961317][ T6122] overlayfs: upper fs needs to support d_type. [pid 6130] <... memfd_create resumed>) = 3 [pid 6130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 156.992374][ T6124] overlayfs: upper fs does not support tmpfile. [ 157.003411][ T6122] overlayfs: upper fs does not support tmpfile. [ 157.010684][ T6122] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 157.025169][ T6124] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 157.034929][ T6122] overlayfs: failed to resolve './file0': -2 [pid 6124] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6122] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6124] creat("./file0/file0", 0202 [pid 6122] creat("./file0/file0", 0202 [pid 6130] 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"..., 4194304 [pid 6124] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6122] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = 0 [pid 6124] exit_group(0 [pid 6122] exit_group(0 [pid 5070] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6122] <... exit_group resumed>) = ? [pid 6124] <... exit_group resumed>) = ? [pid 5070] lstat("./85/file0", [pid 6122] +++ exited with 0 +++ [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6122, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6124] +++ exited with 0 +++ [pid 5070] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6124, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 5068] fstat(3, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5068] getdents64(3, [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./87/binderfs", [pid 5070] <... openat resumed>) = 4 [pid 5068] lstat("./87/binderfs", [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] fstat(4, [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 157.064117][ T6124] overlayfs: failed to resolve './file0': -2 [pid 5073] unlink("./87/binderfs" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] unlink("./87/binderfs" [pid 6131] 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"..., 4194304 [pid 5073] <... unlink resumed>) = 0 [pid 5070] getdents64(4, [pid 5068] <... unlink resumed>) = 0 [pid 5073] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./85/file0" [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./85/file0", [pid 5070] <... rmdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 5071] umount2("./85/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5071] openat(AT_FDCWD, "./85/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5070] rmdir("./85" [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] mkdir("./86", 0777 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5071] close(4 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5071] rmdir("./85/file0" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] getdents64(3, [pid 5070] close(3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] close(3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./85") = 0 [pid 5071] mkdir("./86", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6132 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6132 attached , child_tidptr=0x5555559fa5d0) = 6133 [pid 6132] chdir("./86") = 0 [pid 6132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6132] setpgid(0, 0) = 0 [pid 6132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6132] write(3, "1000", 4./strace-static-x86_64: Process 6133 attached ) = 4 [pid 6133] chdir("./86" [pid 6132] close(3 [pid 6133] <... chdir resumed>) = 0 [pid 6132] <... close resumed>) = 0 [pid 6133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6132] symlink("/dev/binderfs", "./binderfs" [pid 6133] <... prctl resumed>) = 0 [pid 6132] <... symlink resumed>) = 0 [pid 6133] setpgid(0, 0 [pid 6132] memfd_create("syzkaller", 0 [pid 6133] <... setpgid resumed>) = 0 [pid 6132] <... memfd_create resumed>) = 3 [pid 6133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6133] <... openat resumed>) = 3 [pid 6132] <... mmap resumed>) = 0x7f7f7af80000 [pid 6133] write(3, "1000", 4 [pid 6130] <... write resumed>) = 4194304 [pid 6133] <... write resumed>) = 4 [pid 6133] close(3) = 0 [pid 6133] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6133] memfd_create("syzkaller", 0) = 3 [pid 6130] munmap(0x7f7f7af80000, 4194304 [pid 6133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6130] <... munmap resumed>) = 0 [pid 6130] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6130] ioctl(4, LOOP_SET_FD, 3 [pid 6131] <... write resumed>) = 4194304 [pid 6130] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6131] munmap(0x7f7f7af80000, 4194304 [pid 6130] close(3 [pid 5073] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6130] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6130] mkdir("./file0", 0777 [pid 5073] lstat("./87/file0", [pid 5068] lstat("./87/file0", [pid 6130] <... mkdir resumed>) = 0 [pid 6131] <... munmap resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6130] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6131] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... openat resumed>) = 4 [pid 6131] <... openat resumed>) = 4 [ 157.237126][ T6130] loop1: detected capacity change from 0 to 8192 [pid 5073] fstat(4, [pid 5068] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5068] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5068] fstat(4, [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./87/file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5068] getdents64(4, [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... close resumed>) = 0 [pid 5068] getdents64(4, [pid 5073] rmdir("./87" [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] close(4 [pid 5073] mkdir("./88", 0777 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./87/file0" [pid 6131] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... mkdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] getdents64(3, [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6131] <... ioctl resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 6131] close(3 [pid 5073] close(3 [pid 6133] 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"..., 4194304 [pid 6132] 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"..., 4194304 [pid 6131] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 6131] mkdir("./file0", 0777 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] rmdir("./87" [pid 6131] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 6135 attached [pid 6131] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6135 [pid 5068] <... rmdir resumed>) = 0 [ 157.285959][ T6130] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 157.306270][ T6131] loop4: detected capacity change from 0 to 8192 [ 157.318240][ T6130] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 6135] chdir("./88" [pid 5068] mkdir("./88", 0777 [pid 6135] <... chdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 6135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6135] <... prctl resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6135] setpgid(0, 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6135] <... setpgid resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] close(3 [pid 6135] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 6135] write(3, "1000", 4 [pid 6133] <... write resumed>) = 4194304 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6135] <... write resumed>) = 4 [pid 6133] munmap(0x7f7f7af80000, 4194304 [pid 6135] close(3 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6137 [pid 6135] <... close resumed>) = 0 [pid 6133] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 6137 attached [pid 6135] symlink("/dev/binderfs", "./binderfs" [pid 6133] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6137] chdir("./88" [pid 6135] <... symlink resumed>) = 0 [pid 6133] <... openat resumed>) = 4 [pid 6137] <... chdir resumed>) = 0 [pid 6135] memfd_create("syzkaller", 0 [pid 6133] ioctl(4, LOOP_SET_FD, 3 [pid 6137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6135] <... memfd_create resumed>) = 3 [ 157.330804][ T6130] REISERFS (device loop1): using ordered data mode [ 157.337656][ T6130] reiserfs: using flush barriers [ 157.345831][ T6130] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 157.373496][ T6131] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6137] <... prctl resumed>) = 0 [pid 6132] <... write resumed>) = 4194304 [pid 6137] setpgid(0, 0) = 0 [pid 6133] <... ioctl resumed>) = 0 [pid 6137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6133] close(3 [pid 6137] <... openat resumed>) = 3 [pid 6133] <... close resumed>) = 0 [pid 6137] write(3, "1000", 4 [pid 6133] mkdir("./file0", 0777 [pid 6137] <... write resumed>) = 4 [pid 6133] <... mkdir resumed>) = 0 [pid 6137] close(3 [pid 6133] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6137] <... close resumed>) = 0 [pid 6132] munmap(0x7f7f7af80000, 4194304 [pid 6137] symlink("/dev/binderfs", "./binderfs" [pid 6135] 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"..., 4194304 [pid 6132] <... munmap resumed>) = 0 [pid 6137] <... symlink resumed>) = 0 [pid 6132] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6137] memfd_create("syzkaller", 0 [pid 6132] <... openat resumed>) = 4 [pid 6137] <... memfd_create resumed>) = 3 [ 157.399634][ T6133] loop3: detected capacity change from 0 to 8192 [ 157.420956][ T6131] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 157.427407][ T6130] REISERFS (device loop1): checking transaction log (loop1) [ 157.436484][ T6132] loop2: detected capacity change from 0 to 8192 [pid 6132] ioctl(4, LOOP_SET_FD, 3 [pid 6137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6135] <... write resumed>) = 4194304 [pid 6135] munmap(0x7f7f7af80000, 4194304 [pid 6132] <... ioctl resumed>) = 0 [pid 6132] close(3) = 0 [pid 6132] mkdir("./file0", 0777 [pid 6135] <... munmap resumed>) = 0 [pid 6135] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6135] ioctl(4, LOOP_SET_FD, 3 [pid 6132] <... mkdir resumed>) = 0 [ 157.444429][ T6133] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 157.467662][ T6131] REISERFS (device loop4): using ordered data mode [ 157.474510][ T6131] reiserfs: using flush barriers [ 157.482330][ T6131] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6132] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 157.496844][ T6133] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 157.499533][ T6135] loop5: detected capacity change from 0 to 8192 [ 157.514516][ T6130] REISERFS (device loop1): Using r5 hash to sort names [ 157.521625][ T6132] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 157.525073][ T6130] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6137] 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"..., 4194304 [pid 6135] <... ioctl resumed>) = 0 [pid 6130] <... mount resumed>) = 0 [pid 6135] close(3) = 0 [pid 6135] mkdir("./file0", 0777) = 0 [pid 6135] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 157.539961][ T6133] REISERFS (device loop3): using ordered data mode [ 157.548145][ T6130] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 157.563401][ T6132] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 157.564046][ T6131] REISERFS (device loop4): checking transaction log (loop4) [ 157.581228][ T6133] reiserfs: using flush barriers [ 157.582612][ T6131] REISERFS (device loop4): Using r5 hash to sort names [ 157.587715][ T6132] REISERFS (device loop2): using ordered data mode [ 157.593917][ T6133] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 157.599583][ T6132] reiserfs: using flush barriers [ 157.622020][ T6131] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 157.622197][ T6135] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6131] <... mount resumed>) = 0 [pid 6130] chdir("./file0" [pid 6131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6130] <... chdir resumed>) = 0 [pid 6131] <... openat resumed>) = 3 [pid 6130] ioctl(4, LOOP_CLR_FD [pid 6131] chdir("./file0" [pid 6130] <... ioctl resumed>) = 0 [pid 6131] <... chdir resumed>) = 0 [pid 6130] close(4 [pid 6131] ioctl(4, LOOP_CLR_FD [pid 6130] <... close resumed>) = 0 [pid 6131] <... ioctl resumed>) = 0 [pid 6130] mkdir("./file1", 000 [pid 6131] close(4 [pid 6130] <... mkdir resumed>) = 0 [pid 6131] <... close resumed>) = 0 [ 157.634798][ T6131] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 157.656995][ T6132] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 157.657403][ T6133] REISERFS (device loop3): checking transaction log (loop3) [pid 6137] <... write resumed>) = 4194304 [pid 6131] mkdir("./file1", 000 [pid 6130] mkdir("./bus", 000 [pid 6137] munmap(0x7f7f7af80000, 4194304 [pid 6131] <... mkdir resumed>) = 0 [pid 6130] <... mkdir resumed>) = 0 [pid 6137] <... munmap resumed>) = 0 [pid 6131] mkdir("./bus", 000 [ 157.697520][ T6133] REISERFS (device loop3): Using r5 hash to sort names [ 157.698408][ T6135] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 157.713832][ T6135] REISERFS (device loop5): using ordered data mode [ 157.720370][ T6135] reiserfs: using flush barriers [ 157.726542][ T6135] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6130] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6137] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6131] <... mkdir resumed>) = 0 [pid 6137] <... openat resumed>) = 4 [pid 6131] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6137] close(3) = 0 [ 157.726635][ T6133] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 157.751679][ T6130] overlayfs: upper fs needs to support d_type. [ 157.755746][ T6132] REISERFS (device loop2): checking transaction log (loop2) [ 157.768140][ T6131] overlayfs: upper fs needs to support d_type. [ 157.768893][ T6133] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 157.776802][ T6137] loop0: detected capacity change from 0 to 8192 [pid 6137] mkdir("./file0", 0777 [pid 6133] <... mount resumed>) = 0 [pid 6137] <... mkdir resumed>) = 0 [pid 6137] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 157.796080][ T6131] overlayfs: upper fs does not support tmpfile. [ 157.797579][ T6130] overlayfs: upper fs does not support tmpfile. [ 157.809746][ T6130] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 157.818504][ T6130] overlayfs: failed to resolve './file0': -2 [ 157.826151][ T6132] REISERFS (device loop2): Using r5 hash to sort names [ 157.829410][ T6131] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6133] chdir("./file0") = 0 [pid 6132] <... mount resumed>) = 0 [pid 6130] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6133] ioctl(4, LOOP_CLR_FD) = 0 [pid 6133] close(4) = 0 [pid 6132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6130] creat("./file0/file0", 0202 [pid 6133] mkdir("./file1", 000) = 0 [pid 6133] mkdir("./bus", 000) = 0 [ 157.833192][ T6132] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 157.842667][ T6135] REISERFS (device loop5): checking transaction log (loop5) [ 157.853403][ T6132] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 157.865635][ T6131] overlayfs: failed to resolve './file0': -2 [ 157.870995][ T6135] REISERFS (device loop5): Using r5 hash to sort names [ 157.882565][ T6137] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6133] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6132] <... openat resumed>) = 3 [pid 6130] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6135] <... mount resumed>) = 0 [pid 6132] chdir("./file0" [pid 6130] exit_group(0 [pid 6131] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6131] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6131] exit_group(0) = ? [pid 6135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6132] <... chdir resumed>) = 0 [pid 6130] <... exit_group resumed>) = ? [pid 6135] <... openat resumed>) = 3 [pid 6132] ioctl(4, LOOP_CLR_FD [pid 6131] +++ exited with 0 +++ [pid 6135] chdir("./file0" [pid 6132] <... ioctl resumed>) = 0 [pid 6130] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6130, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6135] <... chdir resumed>) = 0 [ 157.882725][ T6135] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 157.909400][ T6135] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 157.910460][ T6133] overlayfs: upper fs needs to support d_type. [ 157.925264][ T6137] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 157.934745][ T6137] REISERFS (device loop0): using ordered data mode [ 157.943228][ T6137] reiserfs: using flush barriers [pid 6132] close(4 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6131, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, [pid 6135] ioctl(4, LOOP_CLR_FD [pid 6132] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6135] <... ioctl resumed>) = 0 [pid 6132] mkdir("./file1", 000 [pid 5069] getdents64(3, [pid 6135] close(4 [pid 6132] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6135] <... close resumed>) = 0 [pid 6132] mkdir("./bus", 000 [pid 5069] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./87/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./87/binderfs") = 0 [pid 5069] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6135] mkdir("./file1", 000 [pid 6132] <... mkdir resumed>) = 0 [pid 6135] <... mkdir resumed>) = 0 [pid 6132] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 157.950566][ T6137] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 157.967338][ T6137] REISERFS (device loop0): checking transaction log (loop0) [ 157.975822][ T6133] overlayfs: upper fs does not support tmpfile. [ 157.977762][ T6137] REISERFS (device loop0): Using r5 hash to sort names [ 157.982772][ T6133] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6135] mkdir("./bus", 000 [pid 5072] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6135] <... mkdir resumed>) = 0 [pid 6133] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... openat resumed>) = 3 [pid 6135] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6133] creat("./file0/file0", 0202 [ 157.998685][ T6132] overlayfs: upper fs needs to support d_type. [ 157.999417][ T6133] overlayfs: failed to resolve './file0': -2 [ 158.012158][ T6137] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 158.025277][ T6137] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 158.029967][ T6132] overlayfs: upper fs does not support tmpfile. [ 158.041231][ T6135] overlayfs: upper fs needs to support d_type. [pid 5072] fstat(3, [pid 6137] <... mount resumed>) = 0 [pid 6133] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6133] exit_group(0 [pid 5072] getdents64(3, [pid 6137] <... openat resumed>) = 3 [pid 6133] <... exit_group resumed>) = ? [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 158.049817][ T6132] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 158.058247][ T6132] overlayfs: failed to resolve './file0': -2 [pid 6137] chdir("./file0") = 0 [pid 6133] +++ exited with 0 +++ [pid 5072] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 6137] ioctl(4, LOOP_CLR_FD [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6137] <... ioctl resumed>) = 0 [pid 5072] lstat("./87/binderfs", [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6133, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] close(4 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./87/file0", [pid 6137] <... close resumed>) = 0 [pid 6132] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] unlink("./87/binderfs" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6137] mkdir("./file1", 000 [pid 6132] creat("./file0/file0", 0202 [pid 5072] <... unlink resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6137] <... mkdir resumed>) = 0 [pid 6132] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] mkdir("./bus", 000 [pid 6135] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6132] exit_group(0 [pid 5071] fstat(3, [pid 5069] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6137] <... mkdir resumed>) = 0 [pid 6135] creat("./file0/file0", 0202 [pid 6132] <... exit_group resumed>) = ? [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 4 [pid 6137] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6135] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6135] exit_group(0 [pid 6132] +++ exited with 0 +++ [pid 5071] getdents64(3, [pid 5069] fstat(4, [pid 6135] <... exit_group resumed>) = ? [pid 6135] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6135, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 5073] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6132, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] fstat(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] lstat("./86/binderfs", [pid 5073] getdents64(3, [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] unlink("./86/binderfs" [pid 5070] umount2("./86", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 5073] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./86", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 158.093433][ T6135] overlayfs: upper fs does not support tmpfile. [ 158.100273][ T6135] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 158.112352][ T6135] overlayfs: failed to resolve './file0': -2 [ 158.131639][ T6137] overlayfs: upper fs needs to support d_type. [pid 5069] close(4 [pid 5073] lstat("./88/binderfs", [pid 5070] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] fstat(3, [pid 5069] <... close resumed>) = 0 [pid 5073] unlink("./88/binderfs" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] rmdir("./87/file0" [pid 5073] <... unlink resumed>) = 0 [pid 5070] getdents64(3, [pid 5073] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(3, [pid 5070] umount2("./86/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3 [pid 5070] lstat("./86/binderfs", [pid 5069] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] rmdir("./87" [pid 5070] unlink("./86/binderfs") = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5070] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] mkdir("./88", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6142 ./strace-static-x86_64: Process 6142 attached [pid 6142] chdir("./88") = 0 [pid 6142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 158.150375][ T6137] overlayfs: upper fs does not support tmpfile. [pid 6142] setpgid(0, 0) = 0 [pid 6142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6142] write(3, "1000", 4) = 4 [pid 6142] close(3) = 0 [pid 6142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6142] memfd_create("syzkaller", 0) = 3 [pid 6142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./87/file0") = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5071] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 158.218521][ T6137] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 158.249960][ T6137] overlayfs: failed to resolve './file0': -2 [pid 6137] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] rmdir("./87" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6137] creat("./file0/file0", 0202 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] lstat("./86/file0", [pid 6137] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6137] exit_group(0 [pid 5072] mkdir("./88", 0777 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6137] <... exit_group resumed>) = ? [pid 5072] <... mkdir resumed>) = 0 [pid 5071] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6137] +++ exited with 0 +++ [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6137, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5072] close(3 [pid 5071] <... openat resumed>) = 4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5072] <... close resumed>) = 0 [pid 5071] fstat(4, [pid 5068] <... restart_syscall resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6143 [pid 5071] getdents64(4, [pid 5068] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5068] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5071] close(4 [pid 5068] fstat(3, ./strace-static-x86_64: Process 6143 attached [pid 5071] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6143] chdir("./88" [pid 5071] rmdir("./86/file0" [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./88/binderfs", [pid 5071] close(3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5068] unlink("./88/binderfs" [pid 6143] <... chdir resumed>) = 0 [pid 5071] rmdir("./86" [pid 5068] <... unlink resumed>) = 0 [pid 6143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... umount2 resumed>) = 0 [pid 5068] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6143] <... prctl resumed>) = 0 [pid 6142] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6143] setpgid(0, 0 [pid 5073] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] mkdir("./87", 0777 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] <... setpgid resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... mkdir resumed>) = 0 [pid 6143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] lstat("./88/file0", [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] lstat("./86/file0", [pid 6143] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6143] write(3, "1000", 4 [pid 5073] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6143] <... write resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] umount2("./86/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6143] close(3 [pid 5073] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6143] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5071] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./86/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6143] symlink("/dev/binderfs", "./binderfs" [pid 5073] fstat(4, [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... openat resumed>) = 4 [pid 6143] <... symlink resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5070] fstat(4, [pid 6143] memfd_create("syzkaller", 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6143] <... memfd_create resumed>) = 3 [pid 5073] getdents64(4, [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6144 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] getdents64(4, [pid 6143] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] close(4 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... close resumed>) = 0 [pid 5070] getdents64(4, [pid 5073] rmdir("./88/file0" [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5070] close(4 [pid 5073] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] rmdir("./86/file0" [pid 5073] close(3) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] rmdir("./88" [pid 5070] getdents64(3, [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./89", 0777 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] close(3 [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... close resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5070] rmdir("./86" [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./87", 0777 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6145 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3./strace-static-x86_64: Process 6144 attached ) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6144] chdir("./87" [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6144] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 6145 attached ./strace-static-x86_64: Process 6146 attached [pid 6144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6145] chdir("./89" [pid 6144] <... prctl resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6146 [pid 6146] chdir("./87" [pid 6145] <... chdir resumed>) = 0 [pid 6144] setpgid(0, 0 [pid 6146] <... chdir resumed>) = 0 [pid 6145] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6144] <... setpgid resumed>) = 0 [pid 6146] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6145] <... prctl resumed>) = 0 [pid 6144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6146] <... prctl resumed>) = 0 [pid 6145] setpgid(0, 0 [pid 6144] <... openat resumed>) = 3 [pid 6146] setpgid(0, 0 [pid 6145] <... setpgid resumed>) = 0 [pid 6144] write(3, "1000", 4 [pid 6146] <... setpgid resumed>) = 0 [pid 6145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6144] <... write resumed>) = 4 [pid 6146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6145] <... openat resumed>) = 3 [pid 6144] close(3 [pid 5068] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6146] <... openat resumed>) = 3 [pid 6145] write(3, "1000", 4 [pid 6144] <... close resumed>) = 0 [pid 6146] write(3, "1000", 4 [pid 6145] <... write resumed>) = 4 [pid 6144] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] <... write resumed>) = 4 [pid 6145] close(3 [pid 6144] <... symlink resumed>) = 0 [pid 6146] close(3 [pid 6145] <... close resumed>) = 0 [pid 6144] memfd_create("syzkaller", 0 [pid 5068] lstat("./88/file0", [pid 6146] <... close resumed>) = 0 [pid 6145] symlink("/dev/binderfs", "./binderfs" [pid 6144] <... memfd_create resumed>) = 3 [pid 6143] 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"..., 4194304 [pid 6142] <... write resumed>) = 4194304 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6146] symlink("/dev/binderfs", "./binderfs" [pid 6145] <... symlink resumed>) = 0 [pid 6144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6142] munmap(0x7f7f7af80000, 4194304 [pid 5068] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6146] <... symlink resumed>) = 0 [pid 6145] memfd_create("syzkaller", 0 [pid 6144] <... mmap resumed>) = 0x7f7f7af80000 [pid 6142] <... munmap resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] memfd_create("syzkaller", 0 [pid 6145] <... memfd_create resumed>) = 3 [pid 6142] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6146] <... memfd_create resumed>) = 3 [pid 6145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6142] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 4 [pid 6146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6145] <... mmap resumed>) = 0x7f7f7af80000 [pid 6142] ioctl(4, LOOP_SET_FD, 3 [pid 5068] fstat(4, [pid 6146] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./88/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./88") = 0 [pid 5068] mkdir("./89", 0777 [pid 6142] <... ioctl resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 6142] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6142] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6142] mkdir("./file0", 0777 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6142] <... mkdir resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6142] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6148 ./strace-static-x86_64: Process 6148 attached [pid 6148] chdir("./89") = 0 [pid 6148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6148] setpgid(0, 0) = 0 [ 158.463669][ T6142] loop1: detected capacity change from 0 to 8192 [pid 6148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6148] write(3, "1000", 4) = 4 [pid 6148] close(3) = 0 [pid 6148] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6146] 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"..., 4194304 [pid 6148] memfd_create("syzkaller", 0) = 3 [pid 6148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 158.518942][ T6142] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.545024][ T6142] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 6144] 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"..., 4194304 [pid 6145] 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"..., 4194304 [pid 6143] <... write resumed>) = 4194304 [pid 6143] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6143] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6143] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6143] close(3) = 0 [pid 6143] mkdir("./file0", 0777) = 0 [ 158.576840][ T6142] REISERFS (device loop1): using ordered data mode [ 158.595593][ T6143] loop4: detected capacity change from 0 to 8192 [pid 6143] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6148] 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"..., 4194304 [pid 6146] <... write resumed>) = 4194304 [pid 6146] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6146] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6145] <... write resumed>) = 4194304 [ 158.624479][ T6142] reiserfs: using flush barriers [ 158.631279][ T6143] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.643157][ T6142] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 158.658282][ T6143] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 6146] ioctl(4, LOOP_SET_FD, 3 [pid 6145] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6144] <... write resumed>) = 4194304 [pid 6145] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6146] <... ioctl resumed>) = 0 [pid 6145] ioctl(4, LOOP_SET_FD, 3 [pid 6146] close(3 [pid 6145] <... ioctl resumed>) = 0 [pid 6146] <... close resumed>) = 0 [ 158.672977][ T6143] REISERFS (device loop4): using ordered data mode [ 158.679789][ T6143] reiserfs: using flush barriers [ 158.684458][ T6146] loop2: detected capacity change from 0 to 8192 [ 158.696372][ T6145] loop5: detected capacity change from 0 to 8192 [ 158.703702][ T6142] REISERFS (device loop1): checking transaction log (loop1) [pid 6144] munmap(0x7f7f7af80000, 4194304 [pid 6148] <... write resumed>) = 4194304 [pid 6146] mkdir("./file0", 0777 [pid 6145] close(3 [pid 6144] <... munmap resumed>) = 0 [pid 6148] munmap(0x7f7f7af80000, 4194304 [pid 6145] <... close resumed>) = 0 [pid 6144] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6148] <... munmap resumed>) = 0 [pid 6145] mkdir("./file0", 0777 [pid 6144] <... openat resumed>) = 4 [pid 6148] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6145] <... mkdir resumed>) = 0 [pid 6144] ioctl(4, LOOP_SET_FD, 3 [pid 6148] <... openat resumed>) = 4 [pid 6146] <... mkdir resumed>) = 0 [pid 6145] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6148] ioctl(4, LOOP_SET_FD, 3 [pid 6146] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6148] <... ioctl resumed>) = 0 [pid 6144] <... ioctl resumed>) = 0 [pid 6148] close(3 [pid 6144] close(3 [pid 6148] <... close resumed>) = 0 [pid 6148] mkdir("./file0", 0777) = 0 [pid 6144] <... close resumed>) = 0 [pid 6148] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 158.706089][ T6143] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 158.719635][ T6144] loop3: detected capacity change from 0 to 8192 [ 158.732814][ T6148] loop0: detected capacity change from 0 to 8192 [ 158.734255][ T6143] REISERFS (device loop4): checking transaction log (loop4) [ 158.747743][ T6142] REISERFS (device loop1): Using r5 hash to sort names [ 158.754976][ T6142] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 158.764649][ T6143] REISERFS (device loop4): Using r5 hash to sort names [pid 6144] mkdir("./file0", 0777) = 0 [pid 6144] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6142] <... mount resumed>) = 0 [pid 6142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6142] chdir("./file0") = 0 [pid 6142] ioctl(4, LOOP_CLR_FD) = 0 [pid 6142] close(4) = 0 [pid 6142] mkdir("./file1", 000) = 0 [ 158.768302][ T6142] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 158.777135][ T6146] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.797681][ T6148] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.799019][ T6143] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6143] <... mount resumed>) = 0 [pid 6143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6142] mkdir("./bus", 000) = 0 [ 158.811356][ T6145] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.823480][ T6143] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 158.845753][ T6146] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 158.855056][ T6146] REISERFS (device loop2): using ordered data mode [ 158.861755][ T6146] reiserfs: using flush barriers [ 158.863080][ T6142] overlayfs: upper fs needs to support d_type. [pid 6142] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6143] <... openat resumed>) = 3 [pid 6143] chdir("./file0") = 0 [ 158.868636][ T6148] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 158.882253][ T6146] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 158.882415][ T6148] REISERFS (device loop0): using ordered data mode [ 158.898725][ T6144] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 158.904977][ T6148] reiserfs: using flush barriers [pid 6143] ioctl(4, LOOP_CLR_FD) = 0 [ 158.924475][ T6145] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 158.926387][ T6148] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 158.933888][ T6145] REISERFS (device loop5): using ordered data mode [ 158.952716][ T6142] overlayfs: upper fs does not support tmpfile. [ 158.956425][ T6145] reiserfs: using flush barriers [ 158.957803][ T6146] REISERFS (device loop2): checking transaction log (loop2) [pid 6143] close(4) = 0 [pid 6143] mkdir("./file1", 000) = 0 [ 158.964292][ T6145] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 158.968167][ T6144] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 158.987415][ T6146] REISERFS (device loop2): Using r5 hash to sort names [ 158.991198][ T6144] REISERFS (device loop3): using ordered data mode [ 159.013941][ T6144] reiserfs: using flush barriers [pid 6143] mkdir("./bus", 000) = 0 [ 159.019655][ T6148] REISERFS (device loop0): checking transaction log (loop0) [ 159.021074][ T6142] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 159.028497][ T6145] REISERFS (device loop5): checking transaction log (loop5) [ 159.041541][ T6144] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 159.058850][ T6144] REISERFS (device loop3): checking transaction log (loop3) [ 159.066304][ T6148] REISERFS (device loop0): Using r5 hash to sort names [pid 6143] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6142] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6142] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6142] exit_group(0) = ? [pid 6142] +++ exited with 0 +++ [ 159.073694][ T6148] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 159.085158][ T6142] overlayfs: failed to resolve './file0': -2 [ 159.086411][ T6145] REISERFS (device loop5): Using r5 hash to sort names [ 159.096510][ T6144] REISERFS (device loop3): Using r5 hash to sort names [ 159.100274][ T6146] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6142, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6144] <... mount resumed>) = 0 [pid 6144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6144] chdir("./file0") = 0 [pid 6144] ioctl(4, LOOP_CLR_FD) = 0 [pid 6144] close(4) = 0 [pid 6144] mkdir("./file1", 000) = 0 [pid 6144] mkdir("./bus", 000 [pid 5069] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6144] <... mkdir resumed>) = 0 [ 159.114109][ T6144] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 159.119761][ T6143] overlayfs: upper fs needs to support d_type. [ 159.133548][ T6144] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 159.137802][ T6145] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 159.159680][ T6148] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 6144] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6148] <... mount resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6146] <... mount resumed>) = 0 [pid 6148] <... openat resumed>) = 3 [pid 6146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6145] <... mount resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6148] chdir("./file0" [pid 6146] <... openat resumed>) = 3 [pid 6145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 6148] <... chdir resumed>) = 0 [pid 6146] chdir("./file0" [pid 6145] <... openat resumed>) = 3 [pid 5069] fstat(3, [pid 6148] ioctl(4, LOOP_CLR_FD [pid 6146] <... chdir resumed>) = 0 [pid 6145] chdir("./file0" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6148] <... ioctl resumed>) = 0 [pid 6146] ioctl(4, LOOP_CLR_FD [pid 6145] <... chdir resumed>) = 0 [pid 5069] getdents64(3, [pid 6148] close(4 [pid 6146] <... ioctl resumed>) = 0 [pid 6145] ioctl(4, LOOP_CLR_FD [ 159.168957][ T6146] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 159.178201][ T6143] overlayfs: upper fs does not support tmpfile. [ 159.185504][ T6143] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 159.194190][ T6145] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 159.204063][ T6143] overlayfs: failed to resolve './file0': -2 [ 159.207451][ T6144] overlayfs: upper fs needs to support d_type. [ 159.217315][ T6144] overlayfs: upper fs does not support tmpfile. [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6148] <... close resumed>) = 0 [pid 6146] close(4 [pid 6145] <... ioctl resumed>) = 0 [pid 6143] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6148] mkdir("./file1", 000 [pid 6146] <... close resumed>) = 0 [pid 6145] close(4 [pid 6143] creat("./file0/file0", 0202 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6148] <... mkdir resumed>) = 0 [pid 6146] mkdir("./file1", 000 [pid 6145] <... close resumed>) = 0 [pid 6143] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] lstat("./88/binderfs", [pid 6148] mkdir("./bus", 000 [pid 6146] <... mkdir resumed>) = 0 [pid 6145] mkdir("./file1", 000 [pid 6143] exit_group(0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6148] <... mkdir resumed>) = 0 [pid 6146] mkdir("./bus", 000 [pid 6145] <... mkdir resumed>) = 0 [pid 6143] <... exit_group resumed>) = ? [pid 5069] unlink("./88/binderfs" [pid 6148] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6146] <... mkdir resumed>) = 0 [pid 6145] mkdir("./bus", 000 [pid 6143] +++ exited with 0 +++ [pid 5069] <... unlink resumed>) = 0 [pid 6146] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6145] <... mkdir resumed>) = 0 [pid 5069] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6145] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6144] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6143, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 159.226443][ T6144] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 159.242282][ T6144] overlayfs: failed to resolve './file0': -2 [ 159.249365][ T6148] overlayfs: upper fs needs to support d_type. [ 159.256071][ T6146] overlayfs: upper fs needs to support d_type. [ 159.262812][ T6145] overlayfs: upper fs needs to support d_type. [ 159.269936][ T6146] overlayfs: upper fs does not support tmpfile. [pid 6144] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5072] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6144] exit_group(0 [pid 5072] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, [pid 6144] <... exit_group resumed>) = ? [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 159.277905][ T6148] overlayfs: upper fs does not support tmpfile. [ 159.286119][ T6145] overlayfs: upper fs does not support tmpfile. [ 159.304582][ T6146] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6144] +++ exited with 0 +++ [pid 5072] getdents64(3, [pid 5069] <... umount2 resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6144, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5069] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./88/file0", [pid 5072] lstat("./88/binderfs", [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] unlink("./88/binderfs" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... unlink resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 4 [pid 5072] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5069] fstat(4, [pid 5071] fstat(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5071] getdents64(3, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(4, [pid 5071] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5071] lstat("./87/binderfs", [pid 5069] <... close resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] rmdir("./88/file0" [pid 5071] unlink("./87/binderfs" [pid 5069] <... rmdir resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./88") = 0 [pid 5069] mkdir("./89", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6148] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... openat resumed>) = 3 [ 159.322730][ T6148] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 159.326110][ T6145] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 159.332715][ T6148] overlayfs: failed to resolve './file0': -2 [pid 6148] creat("./file0/file0", 0202 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6148] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6148] exit_group(0) = ? [pid 6148] +++ exited with 0 +++ [pid 5069] close(3) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6148, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6154 ./strace-static-x86_64: Process 6154 attached [pid 5068] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./89/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./89/binderfs") = 0 [pid 5068] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6145] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6145] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6145] exit_group(0) = ? [pid 6154] chdir("./89" [pid 6145] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6145, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6154] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... openat resumed>) = 3 [pid 6154] <... prctl resumed>) = 0 [pid 5073] fstat(3, [pid 6154] setpgid(0, 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6154] <... setpgid resumed>) = 0 [pid 5073] getdents64(3, [pid 6154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6154] <... openat resumed>) = 3 [pid 5073] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6154] write(3, "1000", 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6154] <... write resumed>) = 4 [ 159.382843][ T6145] overlayfs: failed to resolve './file0': -2 [ 159.392297][ T6146] overlayfs: failed to resolve './file0': -2 [pid 5073] lstat("./89/binderfs", [pid 6154] close(3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6154] <... close resumed>) = 0 [pid 5073] unlink("./89/binderfs" [pid 6154] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... unlink resumed>) = 0 [pid 6154] <... symlink resumed>) = 0 [pid 5073] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6154] memfd_create("syzkaller", 0) = 3 [pid 6154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [pid 6146] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6146] creat("./file0/file0", 0202 [pid 5071] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6146] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6146] exit_group(0 [pid 5071] lstat("./87/file0", [pid 6146] <... exit_group resumed>) = ? [pid 6146] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6146, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5070] umount2("./87", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./87", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(3, [pid 5072] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(3, [pid 5072] lstat("./88/file0", [pid 5071] <... openat resumed>) = 4 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(4, [pid 5070] umount2("./87/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5070] lstat("./87/binderfs", [pid 5072] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5071] getdents64(4, [pid 5070] unlink("./87/binderfs" [pid 5072] fstat(4, [pid 5070] <... unlink resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] close(4 [pid 5072] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./87/file0" [pid 5072] close(4) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] rmdir("./88/file0" [pid 5071] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./88") = 0 [pid 5072] mkdir("./89", 0777) = 0 [pid 5071] close(3 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5071] <... close resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] rmdir("./87" [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./88", 0777 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6155 [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6155 attached , child_tidptr=0x5555559fa5d0) = 6156 [pid 6155] chdir("./89") = 0 [pid 6155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6155] setpgid(0, 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6155] <... setpgid resumed>) = 0 [pid 6155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6155] <... openat resumed>) = 3 [pid 6155] write(3, "1000", 4./strace-static-x86_64: Process 6156 attached ) = 4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] close(3 [pid 6156] chdir("./88" [pid 6155] <... close resumed>) = 0 [pid 5068] lstat("./89/file0", [pid 6156] <... chdir resumed>) = 0 [pid 6155] symlink("/dev/binderfs", "./binderfs" [pid 6156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6155] <... symlink resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6156] <... prctl resumed>) = 0 [pid 6155] memfd_create("syzkaller", 0 [pid 5068] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6155] <... memfd_create resumed>) = 3 [pid 6156] setpgid(0, 0 [pid 6155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6156] <... setpgid resumed>) = 0 [pid 6155] <... mmap resumed>) = 0x7f7f7af80000 [pid 6156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6154] 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"..., 4194304 [pid 5068] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6156] <... openat resumed>) = 3 [pid 6156] write(3, "1000", 4 [pid 5068] <... openat resumed>) = 4 [pid 6156] <... write resumed>) = 4 [pid 6156] close(3 [pid 5068] fstat(4, [pid 6156] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6156] symlink("/dev/binderfs", "./binderfs" [pid 5068] getdents64(4, [pid 6156] <... symlink resumed>) = 0 [pid 6156] memfd_create("syzkaller", 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6156] <... memfd_create resumed>) = 3 [pid 5068] getdents64(4, [pid 6156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6156] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] close(4) = 0 [pid 5068] rmdir("./89/file0") = 0 [pid 5068] getdents64(3, [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./89/file0", [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./89" [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] mkdir("./90", 0777) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5073] fstat(4, [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] getdents64(4, [pid 5068] close(3 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... close resumed>) = 0 [pid 5073] getdents64(4, [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./89/file0" [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6157 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, ./strace-static-x86_64: Process 6157 attached [pid 6157] chdir("./90") = 0 [pid 6157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6157] setpgid(0, 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6157] <... setpgid resumed>) = 0 [pid 5073] close(3 [pid 6157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... close resumed>) = 0 [pid 6157] <... openat resumed>) = 3 [pid 5073] rmdir("./89" [pid 6157] write(3, "1000", 4) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 6157] close(3 [pid 5073] mkdir("./90", 0777 [pid 6157] <... close resumed>) = 0 [pid 6157] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 6157] memfd_create("syzkaller", 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6157] <... memfd_create resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 6157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6157] <... mmap resumed>) = 0x7f7f7af80000 [pid 6155] 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"..., 4194304 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = 0 [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6158 [pid 5070] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./87/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./87/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./87/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6158 attached [pid 5070] getdents64(4, [pid 6158] chdir("./90" [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6158] <... chdir resumed>) = 0 [pid 6156] 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"..., 4194304 [pid 6158] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] getdents64(4, [pid 6158] <... prctl resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6158] setpgid(0, 0 [pid 5070] close(4 [pid 6158] <... setpgid resumed>) = 0 [pid 6158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... close resumed>) = 0 [pid 6158] <... openat resumed>) = 3 [pid 5070] rmdir("./87/file0" [pid 6158] write(3, "1000", 4) = 4 [pid 5070] <... rmdir resumed>) = 0 [pid 6158] close(3 [pid 5070] getdents64(3, [pid 6158] <... close resumed>) = 0 [pid 6158] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6158] <... symlink resumed>) = 0 [pid 5070] close(3 [pid 6158] memfd_create("syzkaller", 0 [pid 5070] <... close resumed>) = 0 [pid 6158] <... memfd_create resumed>) = 3 [pid 5070] rmdir("./87" [pid 6158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... rmdir resumed>) = 0 [pid 6158] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] mkdir("./88", 0777 [pid 6154] <... write resumed>) = 4194304 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 6154] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 6154] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 5070] <... close resumed>) = 0 [pid 6157] 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"..., 4194304 [pid 6154] ioctl(4, LOOP_SET_FD, 3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6159 ./strace-static-x86_64: Process 6159 attached [pid 6159] chdir("./88") = 0 [pid 6159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6159] setpgid(0, 0) = 0 [pid 6159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6159] write(3, "1000", 4 [pid 6154] <... ioctl resumed>) = 0 [pid 6159] <... write resumed>) = 4 [pid 6158] 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"..., 4194304 [pid 6156] <... write resumed>) = 4194304 [pid 6154] close(3 [pid 6159] close(3 [pid 6154] <... close resumed>) = 0 [pid 6154] mkdir("./file0", 0777) = 0 [ 159.772483][ T6154] loop1: detected capacity change from 0 to 8192 [pid 6154] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6159] <... close resumed>) = 0 [pid 6156] munmap(0x7f7f7af80000, 4194304 [pid 6155] <... write resumed>) = 4194304 [pid 6159] symlink("/dev/binderfs", "./binderfs" [pid 6156] <... munmap resumed>) = 0 [pid 6159] <... symlink resumed>) = 0 [pid 6156] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6155] munmap(0x7f7f7af80000, 4194304 [pid 6159] memfd_create("syzkaller", 0 [pid 6156] <... openat resumed>) = 4 [pid 6159] <... memfd_create resumed>) = 3 [pid 6156] ioctl(4, LOOP_SET_FD, 3 [pid 6159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6155] <... munmap resumed>) = 0 [pid 6155] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6155] ioctl(4, LOOP_SET_FD, 3 [pid 6156] <... ioctl resumed>) = 0 [pid 6156] close(3) = 0 [pid 6156] mkdir("./file0", 0777) = 0 [ 159.811418][ T6154] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 159.830655][ T6156] loop3: detected capacity change from 0 to 8192 [ 159.846142][ T6154] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 159.846195][ T6155] loop4: detected capacity change from 0 to 8192 [pid 6156] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6155] <... ioctl resumed>) = 0 [pid 6159] 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"..., 4194304 [pid 6158] <... write resumed>) = 4194304 [pid 6157] <... write resumed>) = 4194304 [pid 6155] close(3) = 0 [pid 6155] mkdir("./file0", 0777) = 0 [ 159.879472][ T6156] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 159.884983][ T6154] REISERFS (device loop1): using ordered data mode [ 159.900689][ T6154] reiserfs: using flush barriers [ 159.909768][ T6154] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6155] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 159.924716][ T6156] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 159.931066][ T6154] REISERFS (device loop1): checking transaction log (loop1) [ 159.936116][ T6155] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 159.943574][ T6156] REISERFS (device loop3): using ordered data mode [ 159.955436][ T6155] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 159.971142][ T6155] REISERFS (device loop4): using ordered data mode [pid 6157] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6157] ioctl(4, LOOP_SET_FD, 3 [pid 6158] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6158] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 159.971515][ T6154] REISERFS (device loop1): Using r5 hash to sort names [ 159.977709][ T6155] reiserfs: using flush barriers [ 159.988917][ T6157] loop0: detected capacity change from 0 to 8192 [ 159.990957][ T6155] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 160.006091][ T6158] loop5: detected capacity change from 0 to 8192 [ 160.012668][ T6155] REISERFS (device loop4): checking transaction log (loop4) [ 160.018463][ T6156] reiserfs: using flush barriers [pid 6158] ioctl(4, LOOP_SET_FD, 3 [pid 6157] <... ioctl resumed>) = 0 [pid 6158] <... ioctl resumed>) = 0 [ 160.026488][ T6155] REISERFS (device loop4): Using r5 hash to sort names [ 160.037770][ T6155] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 160.050712][ T6154] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 160.063695][ T6155] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6157] close(3 [pid 6158] close(3 [pid 6157] <... close resumed>) = 0 [pid 6155] <... mount resumed>) = 0 [pid 6158] <... close resumed>) = 0 [pid 6157] mkdir("./file0", 0777 [pid 6155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6154] <... mount resumed>) = 0 [pid 6158] mkdir("./file0", 0777 [pid 6157] <... mkdir resumed>) = 0 [pid 6155] <... openat resumed>) = 3 [pid 6154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6158] <... mkdir resumed>) = 0 [pid 6155] chdir("./file0" [pid 6154] <... openat resumed>) = 3 [pid 6158] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6157] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6155] <... chdir resumed>) = 0 [pid 6154] chdir("./file0" [pid 6155] ioctl(4, LOOP_CLR_FD [pid 6154] <... chdir resumed>) = 0 [pid 6155] <... ioctl resumed>) = 0 [pid 6154] ioctl(4, LOOP_CLR_FD [pid 6155] close(4 [pid 6154] <... ioctl resumed>) = 0 [pid 6155] <... close resumed>) = 0 [pid 6155] mkdir("./file1", 000 [pid 6154] close(4 [pid 6155] <... mkdir resumed>) = 0 [pid 6154] <... close resumed>) = 0 [pid 6155] mkdir("./bus", 000 [pid 6154] mkdir("./file1", 000 [pid 6155] <... mkdir resumed>) = 0 [pid 6155] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6154] <... mkdir resumed>) = 0 [ 160.071403][ T6156] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 160.073487][ T6154] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 160.099322][ T6156] REISERFS (device loop3): checking transaction log (loop3) [ 160.117931][ T6156] REISERFS (device loop3): Using r5 hash to sort names [pid 6154] mkdir("./bus", 000) = 0 [ 160.131625][ T6155] overlayfs: upper fs needs to support d_type. [ 160.132821][ T6156] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 160.138925][ T6158] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 160.165886][ T6154] overlayfs: upper fs needs to support d_type. [ 160.172094][ T6154] overlayfs: upper fs does not support tmpfile. [pid 6154] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6156] <... mount resumed>) = 0 [pid 6156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6156] chdir("./file0") = 0 [pid 6156] ioctl(4, LOOP_CLR_FD) = 0 [pid 6156] close(4) = 0 [pid 6156] mkdir("./file1", 000) = 0 [pid 6159] <... write resumed>) = 4194304 [pid 6156] mkdir("./bus", 000) = 0 [pid 6156] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6159] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6159] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 160.180687][ T6156] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 160.183935][ T6157] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 160.210138][ T6156] overlayfs: upper fs needs to support d_type. [ 160.221640][ T6155] overlayfs: upper fs does not support tmpfile. [pid 6159] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6159] close(3) = 0 [pid 6159] mkdir("./file0", 0777) = 0 [ 160.230368][ T6159] loop2: detected capacity change from 0 to 8192 [ 160.237961][ T6156] overlayfs: upper fs does not support tmpfile. [ 160.246043][ T6154] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 160.253880][ T6155] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 160.262069][ T6155] overlayfs: failed to resolve './file0': -2 [ 160.263836][ T6158] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6159] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6154] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 160.269411][ T6154] overlayfs: failed to resolve './file0': -2 [ 160.284555][ T6158] REISERFS (device loop5): using ordered data mode [ 160.284968][ T6159] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 160.291097][ T6158] reiserfs: using flush barriers [ 160.305659][ T6156] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 160.310464][ T6157] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 160.320926][ T6156] overlayfs: failed to resolve './file0': -2 [pid 6155] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6154] creat("./file0/file0", 0202 [pid 6155] creat("./file0/file0", 0202 [pid 6154] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6156] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6156] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6156] exit_group(0) = ? [pid 6156] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6156, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 6155] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6154] exit_group(0 [pid 6155] exit_group(0 [pid 6154] <... exit_group resumed>) = ? [pid 5071] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 160.325271][ T6158] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 160.333407][ T6159] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 160.347794][ T6157] REISERFS (device loop0): using ordered data mode [ 160.359063][ T6159] REISERFS (device loop2): using ordered data mode [ 160.363862][ T6158] REISERFS (device loop5): checking transaction log (loop5) [pid 5071] getdents64(3, [pid 6155] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6154] +++ exited with 0 +++ [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6155] +++ exited with 0 +++ [pid 5071] lstat("./88/binderfs", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6154, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6155, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5071] unlink("./88/binderfs" [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5072] getdents64(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(3, [pid 5072] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 160.378399][ T6159] reiserfs: using flush barriers [ 160.387487][ T6158] REISERFS (device loop5): Using r5 hash to sort names [ 160.389201][ T6157] reiserfs: using flush barriers [ 160.400899][ T6158] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 160.414874][ T6159] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] lstat("./89/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6158] <... mount resumed>) = 0 [pid 6158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6158] chdir("./file0") = 0 [pid 6158] ioctl(4, LOOP_CLR_FD) = 0 [pid 6158] close(4) = 0 [pid 6158] mkdir("./file1", 000) = 0 [pid 6158] mkdir("./bus", 000) = 0 [pid 6158] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./89/binderfs", [pid 5072] unlink("./89/binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5069] unlink("./89/binderfs" [pid 5072] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [ 160.414941][ T6158] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 160.436954][ T6157] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 160.444643][ T6158] overlayfs: upper fs needs to support d_type. [ 160.463266][ T6158] overlayfs: upper fs does not support tmpfile. [ 160.472069][ T6158] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6158] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6158] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6158] exit_group(0) = ? [pid 6158] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6158, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5073] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./90/binderfs") = 0 [pid 5073] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./89/file0") = 0 [ 160.495290][ T6158] overlayfs: failed to resolve './file0': -2 [ 160.513460][ T6159] REISERFS (device loop2): checking transaction log (loop2) [ 160.527591][ T6159] REISERFS (device loop2): Using r5 hash to sort names [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./89") = 0 [pid 5069] mkdir("./90", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6166 ./strace-static-x86_64: Process 6166 attached [pid 6166] chdir("./90") = 0 [pid 6166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6166] setpgid(0, 0) = 0 [pid 6166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6166] write(3, "1000", 4) = 4 [pid 6166] close(3) = 0 [pid 6166] symlink("/dev/binderfs", "./binderfs") = 0 [ 160.570793][ T6157] REISERFS (device loop0): checking transaction log (loop0) [ 160.588522][ T6159] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6166] memfd_create("syzkaller", 0) = 3 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 6166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./89/file0", [pid 5071] lstat("./88/file0", [pid 6159] <... mount resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, [pid 5071] fstat(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6159] <... openat resumed>) = 3 [pid 5072] getdents64(4, [pid 5071] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5071] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5071] close(4 [pid 5072] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5072] rmdir("./89/file0" [pid 5071] rmdir("./88/file0" [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5071] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [ 160.633887][ T6157] REISERFS (device loop0): Using r5 hash to sort names [ 160.641081][ T6157] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 160.647783][ T6159] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] getdents64(3, [pid 6159] chdir("./file0" [pid 5072] close(3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6159] <... chdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] close(3) = 0 [pid 6159] ioctl(4, LOOP_CLR_FD [pid 5072] rmdir("./89" [pid 5071] rmdir("./88" [pid 6159] <... ioctl resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 6159] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] mkdir("./90", 0777 [pid 6159] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6159] mkdir("./file1", 000 [pid 5071] mkdir("./89", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./90/file0", [pid 5072] <... mkdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6159] <... mkdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6159] mkdir("./bus", 000 [pid 5073] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6159] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6159] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./90/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./90") = 0 [pid 5073] mkdir("./91", 0777) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5071] close(3) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6167 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6168 [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6167 attached , child_tidptr=0x5555559fa5d0) = 6169 ./strace-static-x86_64: Process 6168 attached [pid 6167] chdir("./89" [pid 6168] chdir("./90" [pid 6167] <... chdir resumed>) = 0 [pid 6168] <... chdir resumed>) = 0 [pid 6167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6167] <... prctl resumed>) = 0 [pid 6168] <... prctl resumed>) = 0 [pid 6167] setpgid(0, 0 [pid 6168] setpgid(0, 0 [pid 6167] <... setpgid resumed>) = 0 [pid 6168] <... setpgid resumed>) = 0 [pid 6167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6167] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6169 attached [pid 6168] <... openat resumed>) = 3 [pid 6167] write(3, "1000", 4 [pid 6169] chdir("./91" [pid 6168] write(3, "1000", 4 [pid 6167] <... write resumed>) = 4 [pid 6169] <... chdir resumed>) = 0 [pid 6168] <... write resumed>) = 4 [pid 6167] close(3 [pid 6166] 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"..., 4194304 [pid 6169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6168] close(3 [pid 6167] <... close resumed>) = 0 [pid 6169] <... prctl resumed>) = 0 [pid 6168] <... close resumed>) = 0 [pid 6167] symlink("/dev/binderfs", "./binderfs" [pid 6169] setpgid(0, 0 [pid 6168] symlink("/dev/binderfs", "./binderfs" [pid 6167] <... symlink resumed>) = 0 [pid 6169] <... setpgid resumed>) = 0 [pid 6168] <... symlink resumed>) = 0 [pid 6167] memfd_create("syzkaller", 0 [pid 6169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6168] memfd_create("syzkaller", 0 [pid 6167] <... memfd_create resumed>) = 3 [pid 6169] <... openat resumed>) = 3 [pid 6168] <... memfd_create resumed>) = 3 [pid 6167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6169] write(3, "1000", 4 [pid 6168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6167] <... mmap resumed>) = 0x7f7f7af80000 [pid 6169] <... write resumed>) = 4 [pid 6168] <... mmap resumed>) = 0x7f7f7af80000 [ 160.676212][ T6157] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 160.699194][ T6159] overlayfs: upper fs needs to support d_type. [ 160.716574][ T6159] overlayfs: upper fs does not support tmpfile. [pid 6169] close(3 [pid 6157] <... mount resumed>) = 0 [pid 6169] <... close resumed>) = 0 [pid 6169] symlink("/dev/binderfs", "./binderfs" [pid 6157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6169] <... symlink resumed>) = 0 [pid 6169] memfd_create("syzkaller", 0 [pid 6157] <... openat resumed>) = 3 [pid 6169] <... memfd_create resumed>) = 3 [pid 6157] chdir("./file0" [pid 6169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6157] <... chdir resumed>) = 0 [pid 6169] <... mmap resumed>) = 0x7f7f7af80000 [pid 6157] ioctl(4, LOOP_CLR_FD) = 0 [pid 6157] close(4) = 0 [pid 6157] mkdir("./file1", 000) = 0 [pid 6157] mkdir("./bus", 000) = 0 [pid 6159] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 160.750370][ T6159] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 160.789672][ T6159] overlayfs: failed to resolve './file0': -2 [pid 6157] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6159] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6159] exit_group(0) = ? [pid 6159] +++ exited with 0 +++ [pid 6168] 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"..., 4194304 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6159, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5070] umount2("./88", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./88", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./88/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./88/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6167] 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"..., 4194304 [pid 5070] unlink("./88/binderfs") = 0 [pid 5070] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 160.800692][ T6157] overlayfs: upper fs needs to support d_type. [ 160.823988][ T6157] overlayfs: upper fs does not support tmpfile. [ 160.830895][ T6157] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6169] 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"..., 4194304 [pid 6166] <... write resumed>) = 4194304 [pid 6166] munmap(0x7f7f7af80000, 4194304 [pid 6157] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6166] <... munmap resumed>) = 0 [pid 6157] creat("./file0/file0", 0202 [pid 6166] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6157] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6166] <... openat resumed>) = 4 [pid 6157] exit_group(0 [pid 6166] ioctl(4, LOOP_SET_FD, 3 [pid 6157] <... exit_group resumed>) = ? [ 160.878805][ T6157] overlayfs: failed to resolve './file0': -2 [pid 6157] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6157, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./88/file0", [pid 6166] <... ioctl resumed>) = 0 [pid 6166] close(3) = 0 [pid 6166] mkdir("./file0", 0777 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./88/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./88/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5068] <... openat resumed>) = 3 [pid 5070] fstat(4, [pid 5068] fstat(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5068] getdents64(3, [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(4) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./88/file0" [pid 5068] lstat("./90/binderfs", [pid 6166] <... mkdir resumed>) = 0 [pid 6166] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] getdents64(3, [pid 5068] unlink("./90/binderfs" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5068] <... unlink resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./88") = 0 [pid 5070] mkdir("./89", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6171 [ 160.937108][ T6166] loop1: detected capacity change from 0 to 8192 ./strace-static-x86_64: Process 6171 attached [pid 6169] <... write resumed>) = 4194304 [pid 6167] <... write resumed>) = 4194304 [pid 6171] chdir("./89" [pid 6169] munmap(0x7f7f7af80000, 4194304 [pid 6167] munmap(0x7f7f7af80000, 4194304 [pid 6171] <... chdir resumed>) = 0 [pid 6169] <... munmap resumed>) = 0 [pid 6167] <... munmap resumed>) = 0 [pid 6171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6169] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6167] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6171] <... prctl resumed>) = 0 [pid 6169] <... openat resumed>) = 4 [pid 6167] <... openat resumed>) = 4 [pid 6171] setpgid(0, 0 [pid 6169] ioctl(4, LOOP_SET_FD, 3 [pid 6167] ioctl(4, LOOP_SET_FD, 3 [pid 6171] <... setpgid resumed>) = 0 [pid 6169] <... ioctl resumed>) = 0 [pid 6168] <... write resumed>) = 4194304 [pid 6171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6169] close(3 [pid 6171] <... openat resumed>) = 3 [pid 6169] <... close resumed>) = 0 [pid 6171] write(3, "1000", 4 [pid 6169] mkdir("./file0", 0777 [pid 6171] <... write resumed>) = 4 [pid 6169] <... mkdir resumed>) = 0 [pid 6171] close(3 [pid 6169] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6171] <... close resumed>) = 0 [ 160.997577][ T6166] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 161.008575][ T6169] loop5: detected capacity change from 0 to 8192 [ 161.012921][ T6166] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 161.020581][ T6167] loop3: detected capacity change from 0 to 8192 [ 161.026822][ T6166] REISERFS (device loop1): using ordered data mode [ 161.039204][ T6166] reiserfs: using flush barriers [pid 6171] symlink("/dev/binderfs", "./binderfs" [pid 6168] munmap(0x7f7f7af80000, 4194304 [pid 6171] <... symlink resumed>) = 0 [pid 6167] <... ioctl resumed>) = 0 [pid 6171] memfd_create("syzkaller", 0 [pid 6167] close(3 [pid 6171] <... memfd_create resumed>) = 3 [pid 6171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6167] <... close resumed>) = 0 [pid 6171] <... mmap resumed>) = 0x7f7f7af80000 [pid 6168] <... munmap resumed>) = 0 [pid 6167] mkdir("./file0", 0777 [pid 6168] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6168] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6167] <... mkdir resumed>) = 0 [pid 6168] close(3) = 0 [ 161.045730][ T6166] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 161.063272][ T6169] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 161.076469][ T6169] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 161.080508][ T6168] loop4: detected capacity change from 0 to 8192 [pid 6168] mkdir("./file0", 0777) = 0 [pid 6167] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6171] 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"..., 4194304 [pid 6168] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... umount2 resumed>) = 0 [ 161.086713][ T6169] REISERFS (device loop5): using ordered data mode [ 161.103811][ T6166] REISERFS (device loop1): checking transaction log (loop1) [ 161.113707][ T6166] REISERFS (device loop1): Using r5 hash to sort names [ 161.120765][ T6166] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 161.127946][ T6169] reiserfs: using flush barriers [pid 5068] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 161.140862][ T6166] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 161.153032][ T6169] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 161.154683][ T6168] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 161.169567][ T6169] REISERFS (device loop5): checking transaction log (loop5) [pid 5068] getdents64(4, [pid 6166] <... mount resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./90/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] close(3) = 0 [pid 5068] rmdir("./90" [pid 6166] <... openat resumed>) = 3 [pid 5068] <... rmdir resumed>) = 0 [pid 6166] chdir("./file0" [pid 5068] mkdir("./91", 0777 [pid 6166] <... chdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 6166] ioctl(4, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6166] <... ioctl resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [ 161.190980][ T6168] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 161.191145][ T6167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 161.200234][ T6169] REISERFS (device loop5): Using r5 hash to sort names [ 161.220433][ T6169] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 161.233230][ T6169] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6166] close(4 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6169] <... mount resumed>) = 0 [pid 6166] <... close resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6166] mkdir("./file1", 000 [pid 5068] close(3 [pid 6169] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6166] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 6169] <... openat resumed>) = 3 [pid 6166] mkdir("./bus", 000 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6169] chdir("./file0" [pid 6166] <... mkdir resumed>) = 0 [ 161.242739][ T6167] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 161.252057][ T6167] REISERFS (device loop3): using ordered data mode [ 161.258619][ T6167] reiserfs: using flush barriers [ 161.264952][ T6168] REISERFS (device loop4): using ordered data mode [ 161.265105][ T6167] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 161.271495][ T6168] reiserfs: using flush barriers ./strace-static-x86_64: Process 6175 attached [pid 6171] <... write resumed>) = 4194304 [pid 6169] <... chdir resumed>) = 0 [pid 6166] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6175 [pid 6175] chdir("./91" [pid 6171] munmap(0x7f7f7af80000, 4194304 [pid 6169] ioctl(4, LOOP_CLR_FD [pid 6175] <... chdir resumed>) = 0 [pid 6175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6171] <... munmap resumed>) = 0 [pid 6169] <... ioctl resumed>) = 0 [ 161.293847][ T6168] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 161.306451][ T6167] REISERFS (device loop3): checking transaction log (loop3) [ 161.311840][ T6166] overlayfs: upper fs needs to support d_type. [ 161.323065][ T6168] REISERFS (device loop4): checking transaction log (loop4) [ 161.332306][ T6166] overlayfs: upper fs does not support tmpfile. [ 161.333242][ T6167] REISERFS (device loop3): Using r5 hash to sort names [pid 6175] <... prctl resumed>) = 0 [pid 6171] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6169] close(4 [ 161.339872][ T6166] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 161.347079][ T6168] REISERFS (device loop4): Using r5 hash to sort names [ 161.354491][ T6166] overlayfs: failed to resolve './file0': -2 [ 161.365640][ T6167] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 161.373822][ T6168] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6175] setpgid(0, 0) = 0 [pid 6171] <... openat resumed>) = 4 [pid 6169] <... close resumed>) = 0 [pid 6175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6171] ioctl(4, LOOP_SET_FD, 3 [pid 6169] mkdir("./file1", 000 [pid 6167] <... mount resumed>) = 0 [pid 6166] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6166] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6166] exit_group(0) = ? [pid 6166] +++ exited with 0 +++ [pid 6175] <... openat resumed>) = 3 [pid 6169] <... mkdir resumed>) = 0 [pid 6167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6166, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6167] <... openat resumed>) = 3 [pid 6175] write(3, "1000", 4 [pid 6167] chdir("./file0" [pid 6175] <... write resumed>) = 4 [pid 6171] <... ioctl resumed>) = 0 [pid 6169] mkdir("./bus", 000 [pid 6167] <... chdir resumed>) = 0 [pid 6175] close(3 [pid 6171] close(3 [pid 6169] <... mkdir resumed>) = 0 [pid 6167] ioctl(4, LOOP_CLR_FD [pid 6175] <... close resumed>) = 0 [pid 6171] <... close resumed>) = 0 [pid 6167] <... ioctl resumed>) = 0 [pid 6171] mkdir("./file0", 0777) = 0 [pid 6167] close(4 [pid 6175] symlink("/dev/binderfs", "./binderfs" [pid 6169] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6171] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6167] <... close resumed>) = 0 [ 161.390182][ T6167] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 161.401161][ T6168] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 161.410859][ T6171] loop2: detected capacity change from 0 to 8192 [ 161.425031][ T6169] overlayfs: upper fs needs to support d_type. [ 161.425950][ T6171] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6175] <... symlink resumed>) = 0 [pid 6167] mkdir("./file1", 000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./90/binderfs") = 0 [pid 5069] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6175] memfd_create("syzkaller", 0) = 3 [pid 6167] <... mkdir resumed>) = 0 [ 161.431260][ T6169] overlayfs: upper fs does not support tmpfile. [ 161.444296][ T6171] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 161.461427][ T6171] REISERFS (device loop2): using ordered data mode [ 161.468365][ T6171] reiserfs: using flush barriers [ 161.475337][ T6171] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 161.475711][ T6167] overlayfs: upper fs needs to support d_type. [pid 6175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6167] mkdir("./bus", 000 [pid 6175] <... mmap resumed>) = 0x7f7f7af80000 [pid 6167] <... mkdir resumed>) = 0 [pid 6167] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6168] <... mount resumed>) = 0 [pid 6168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6168] chdir("./file0") = 0 [ 161.491816][ T6171] REISERFS (device loop2): checking transaction log (loop2) [ 161.506303][ T6169] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 161.515096][ T6171] REISERFS (device loop2): Using r5 hash to sort names [ 161.524031][ T6171] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 161.538236][ T6171] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6168] ioctl(4, LOOP_CLR_FD [pid 6171] <... mount resumed>) = 0 [pid 6171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6168] <... ioctl resumed>) = 0 [pid 6171] <... openat resumed>) = 3 [pid 6168] close(4 [pid 6171] chdir("./file0" [pid 6168] <... close resumed>) = 0 [pid 6175] 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"..., 4194304 [pid 6171] <... chdir resumed>) = 0 [pid 6168] mkdir("./file1", 000 [pid 6167] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6171] ioctl(4, LOOP_CLR_FD [pid 6168] <... mkdir resumed>) = 0 [pid 6167] creat("./file0/file0", 0202 [pid 6171] <... ioctl resumed>) = 0 [pid 6168] mkdir("./bus", 000 [pid 6171] close(4 [pid 6167] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6171] <... close resumed>) = 0 [pid 6168] <... mkdir resumed>) = 0 [pid 6167] exit_group(0 [pid 6171] mkdir("./file1", 000 [pid 6168] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6167] <... exit_group resumed>) = ? [ 161.549148][ T6167] overlayfs: upper fs does not support tmpfile. [ 161.556368][ T6167] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 161.562807][ T6169] overlayfs: failed to resolve './file0': -2 [ 161.565729][ T6167] overlayfs: failed to resolve './file0': -2 [pid 6171] <... mkdir resumed>) = 0 [pid 6167] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6167, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=23 /* 0.23 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 6171] mkdir("./bus", 000 [pid 5071] <... restart_syscall resumed>) = 0 [pid 6171] <... mkdir resumed>) = 0 [pid 6169] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6171] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6169] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6169] exit_group(0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 6169] <... exit_group resumed>) = ? [pid 5071] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 161.613935][ T6168] overlayfs: upper fs needs to support d_type. [ 161.620167][ T6168] overlayfs: upper fs does not support tmpfile. [ 161.632371][ T6171] overlayfs: upper fs needs to support d_type. [ 161.639972][ T6171] overlayfs: upper fs does not support tmpfile. [ 161.647204][ T6168] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 161.655407][ T6171] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5069] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6169] +++ exited with 0 +++ [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6169, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5071] lstat("./89/binderfs", [pid 5069] lstat("./90/file0", [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./89/binderfs") = 0 [pid 5071] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6171] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6168] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6171] creat("./file0/file0", 0202 [pid 6168] creat("./file0/file0", 0202 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6175] <... write resumed>) = 4194304 [pid 6171] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6168] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6171] exit_group(0 [pid 5073] getdents64(3, [pid 5069] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6175] munmap(0x7f7f7af80000, 4194304 [pid 6171] <... exit_group resumed>) = ? [pid 6168] exit_group(0 [pid 5069] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6171] +++ exited with 0 +++ [pid 6168] <... exit_group resumed>) = ? [pid 5073] lstat("./91/binderfs", [pid 5069] fstat(4, [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6171, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 6168] +++ exited with 0 +++ [pid 5073] unlink("./91/binderfs" [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6175] <... munmap resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6168, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] <... restart_syscall resumed>) = 0 [pid 5069] getdents64(4, [pid 6175] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6175] <... openat resumed>) = 4 [pid 5069] getdents64(4, [pid 6175] ioctl(4, LOOP_SET_FD, 3 [pid 5072] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./89", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 161.666818][ T6171] overlayfs: failed to resolve './file0': -2 [ 161.675079][ T6168] overlayfs: failed to resolve './file0': -2 [pid 5072] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./89", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5072] fstat(3, [pid 5070] fstat(3, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5070] getdents64(3, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./89/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./90/binderfs", [pid 5070] lstat("./89/binderfs", [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./90/binderfs" [pid 5070] unlink("./89/binderfs" [pid 5069] close(4 [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 6175] <... ioctl resumed>) = 0 [pid 5072] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 6175] close(3 [pid 5069] rmdir("./90/file0" [pid 6175] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 6175] mkdir("./file0", 0777 [pid 5069] getdents64(3, [pid 6175] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6175] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] close(3 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] rmdir("./90" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... rmdir resumed>) = 0 [ 161.716558][ T6175] loop0: detected capacity change from 0 to 8192 [ 161.745790][ T6175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] lstat("./89/file0", [pid 5069] mkdir("./91", 0777 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5071] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5071] <... openat resumed>) = 4 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5071] fstat(4, [pid 5069] <... close resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] getdents64(4, ./strace-static-x86_64: Process 6178 attached 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6178 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./89/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 6178] chdir("./91" [pid 5071] rmdir("./89") = 0 [pid 5071] mkdir("./90", 0777 [pid 6178] <... chdir resumed>) = 0 [pid 6178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6178] <... prctl resumed>) = 0 [pid 6178] setpgid(0, 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6178] <... setpgid resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6179 [pid 6178] <... openat resumed>) = 3 [pid 6178] write(3, "1000", 4) = 4 [pid 6178] close(3) = 0 [pid 6178] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6178] memfd_create("syzkaller", 0./strace-static-x86_64: Process 6179 attached ) = 3 [ 161.760214][ T6175] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 161.774731][ T6175] REISERFS (device loop0): using ordered data mode [ 161.793523][ T6175] reiserfs: using flush barriers [pid 6178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6179] chdir("./90" [pid 6178] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 6179] <... chdir resumed>) = 0 [pid 6179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6179] setpgid(0, 0) = 0 [pid 6179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6179] write(3, "1000", 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] <... write resumed>) = 4 [pid 5073] lstat("./91/file0", [pid 6179] close(3) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6179] symlink("/dev/binderfs", "./binderfs" [pid 5073] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6179] <... symlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6179] memfd_create("syzkaller", 0 [pid 5073] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6179] <... memfd_create resumed>) = 3 [pid 6179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... openat resumed>) = 4 [pid 6179] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] fstat(4, [pid 5070] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./89/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./89/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./91/file0" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./91" [pid 5070] openat(AT_FDCWD, "./89/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./92", 0777 [pid 5070] <... openat resumed>) = 4 [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./89/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./89") = 0 [ 161.866431][ T6175] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5070] mkdir("./90", 0777) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6180 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6181 ./strace-static-x86_64: Process 6180 attached [pid 6180] chdir("./92") = 0 ./strace-static-x86_64: Process 6181 attached [pid 6180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6181] chdir("./90" [pid 6180] <... prctl resumed>) = 0 [pid 6181] <... chdir resumed>) = 0 [pid 6180] setpgid(0, 0 [pid 6181] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6180] <... setpgid resumed>) = 0 [pid 6181] <... prctl resumed>) = 0 [pid 6180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6181] setpgid(0, 0 [pid 6180] <... openat resumed>) = 3 [pid 6181] <... setpgid resumed>) = 0 [pid 6180] write(3, "1000", 4 [pid 6181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6180] <... write resumed>) = 4 [pid 6181] <... openat resumed>) = 3 [pid 6180] close(3 [pid 6181] write(3, "1000", 4 [pid 6180] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6181] <... write resumed>) = 4 [pid 6180] symlink("/dev/binderfs", "./binderfs" [pid 5072] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6181] close(3 [pid 6180] <... symlink resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6181] <... close resumed>) = 0 [pid 6180] memfd_create("syzkaller", 0 [pid 5072] lstat("./90/file0", [pid 6181] symlink("/dev/binderfs", "./binderfs" [pid 6180] <... memfd_create resumed>) = 3 [pid 6178] 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"..., 4194304 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6181] <... symlink resumed>) = 0 [pid 6180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6179] 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"..., 4194304 [pid 6181] memfd_create("syzkaller", 0 [pid 6180] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./90/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./90") = 0 [pid 5072] mkdir("./91", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 6181] <... memfd_create resumed>) = 3 [pid 5072] <... close resumed>) = 0 [pid 6181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6181] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6182 ./strace-static-x86_64: Process 6182 attached [pid 6182] chdir("./91") = 0 [pid 6182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6182] setpgid(0, 0) = 0 [ 161.946222][ T6175] REISERFS (device loop0): checking transaction log (loop0) [ 161.974508][ T6175] REISERFS (device loop0): Using r5 hash to sort names [ 161.981609][ T6175] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6182] write(3, "1000", 4) = 4 [pid 6182] close(3) = 0 [pid 6182] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6182] memfd_create("syzkaller", 0) = 3 [pid 6182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6180] 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"..., 4194304 [pid 6181] 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"..., 4194304 [pid 6179] <... write resumed>) = 4194304 [pid 6179] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6179] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6179] ioctl(4, LOOP_SET_FD, 3 [pid 6182] 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"..., 4194304 [pid 6175] <... mount resumed>) = 0 [pid 6175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6175] chdir("./file0" [pid 6179] <... ioctl resumed>) = 0 [pid 6175] <... chdir resumed>) = 0 [pid 6179] close(3) = 0 [pid 6178] <... write resumed>) = 4194304 [pid 6175] ioctl(4, LOOP_CLR_FD [pid 6179] mkdir("./file0", 0777 [pid 6175] <... ioctl resumed>) = 0 [pid 6179] <... mkdir resumed>) = 0 [ 162.081670][ T6175] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 162.100049][ T6179] loop3: detected capacity change from 0 to 8192 [pid 6175] close(4 [pid 6181] <... write resumed>) = 4194304 [pid 6179] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6175] <... close resumed>) = 0 [pid 6175] mkdir("./file1", 000 [pid 6178] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6175] <... mkdir resumed>) = 0 [pid 6181] munmap(0x7f7f7af80000, 4194304 [pid 6180] <... write resumed>) = 4194304 [pid 6178] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6175] mkdir("./bus", 000 [pid 6178] <... openat resumed>) = 4 [pid 6178] ioctl(4, LOOP_SET_FD, 3 [pid 6175] <... mkdir resumed>) = 0 [pid 6180] munmap(0x7f7f7af80000, 4194304 [pid 6182] <... write resumed>) = 4194304 [pid 6181] <... munmap resumed>) = 0 [pid 6180] <... munmap resumed>) = 0 [pid 6178] <... ioctl resumed>) = 0 [pid 6175] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6182] munmap(0x7f7f7af80000, 4194304 [pid 6181] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6180] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6178] close(3 [pid 6182] <... munmap resumed>) = 0 [pid 6181] <... openat resumed>) = 4 [pid 6180] <... openat resumed>) = 4 [pid 6178] <... close resumed>) = 0 [pid 6182] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6181] ioctl(4, LOOP_SET_FD, 3 [pid 6180] ioctl(4, LOOP_SET_FD, 3 [pid 6178] mkdir("./file0", 0777 [pid 6182] <... openat resumed>) = 4 [pid 6182] ioctl(4, LOOP_SET_FD, 3 [pid 6181] <... ioctl resumed>) = 0 [pid 6180] <... ioctl resumed>) = 0 [pid 6178] <... mkdir resumed>) = 0 [ 162.169592][ T6178] loop1: detected capacity change from 0 to 8192 [ 162.177489][ T6179] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 162.192075][ T6175] overlayfs: upper fs needs to support d_type. [ 162.197019][ T6181] loop2: detected capacity change from 0 to 8192 [ 162.200965][ T6175] overlayfs: upper fs does not support tmpfile. [ 162.204828][ T6180] loop5: detected capacity change from 0 to 8192 [pid 6181] close(3 [pid 6180] close(3 [pid 6178] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6181] <... close resumed>) = 0 [pid 6180] <... close resumed>) = 0 [pid 6181] mkdir("./file0", 0777 [pid 6180] mkdir("./file0", 0777 [pid 6181] <... mkdir resumed>) = 0 [pid 6180] <... mkdir resumed>) = 0 [pid 6181] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6180] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6182] <... ioctl resumed>) = 0 [pid 6182] close(3 [pid 6175] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 162.206670][ T6179] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 162.215440][ T6175] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 162.218009][ T6182] loop4: detected capacity change from 0 to 8192 [ 162.234232][ T6179] REISERFS (device loop3): using ordered data mode [ 162.242458][ T6175] overlayfs: failed to resolve './file0': -2 [ 162.249296][ T6178] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6182] <... close resumed>) = 0 [pid 6175] creat("./file0/file0", 0202 [pid 6182] mkdir("./file0", 0777 [pid 6175] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6182] <... mkdir resumed>) = 0 [pid 6182] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6175] exit_group(0) = ? [ 162.253182][ T6179] reiserfs: using flush barriers [ 162.276018][ T6180] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 162.277910][ T6178] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 162.289989][ T6179] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6175] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6175, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5068] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./91/binderfs") = 0 [ 162.298261][ T6178] REISERFS (device loop1): using ordered data mode [ 162.314798][ T6181] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 162.320758][ T6178] reiserfs: using flush barriers [ 162.322089][ T6178] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 162.334433][ T6182] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 162.339242][ T6178] REISERFS (device loop1): checking transaction log (loop1) [ 162.363137][ T6180] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 162.368637][ T6179] REISERFS (device loop3): checking transaction log (loop3) [ 162.392715][ T6179] REISERFS (device loop3): Using r5 hash to sort names [ 162.399831][ T6179] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5068] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6179] <... mount resumed>) = 0 [ 162.406887][ T6181] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 162.412544][ T6179] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 162.427437][ T6182] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 162.431115][ T6180] REISERFS (device loop5): using ordered data mode [ 162.444166][ T6178] REISERFS (device loop1): Using r5 hash to sort names [ 162.453427][ T6180] reiserfs: using flush barriers [pid 6179] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6179] chdir("./file0") = 0 [ 162.454536][ T6180] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 162.475928][ T6181] REISERFS (device loop2): using ordered data mode [ 162.476182][ T6182] REISERFS (device loop4): using ordered data mode [ 162.482872][ T6181] reiserfs: using flush barriers [ 162.490664][ T6178] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6179] ioctl(4, LOOP_CLR_FD) = 0 [pid 6179] close(4) = 0 [ 162.495964][ T6181] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 162.508094][ T6182] reiserfs: using flush barriers [ 162.524041][ T6180] REISERFS (device loop5): checking transaction log (loop5) [ 162.529455][ T6178] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 162.536730][ T6180] REISERFS (device loop5): Using r5 hash to sort names [pid 6179] mkdir("./file1", 000) = 0 [pid 6179] mkdir("./bus", 000) = 0 [ 162.559234][ T6180] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 162.577077][ T6179] overlayfs: upper fs needs to support d_type. [ 162.586538][ T6179] overlayfs: upper fs does not support tmpfile. [ 162.597420][ T6181] REISERFS (device loop2): checking transaction log (loop2) [ 162.605690][ T6182] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6179] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6178] <... mount resumed>) = 0 [pid 6178] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6178] chdir("./file0") = 0 [pid 6178] ioctl(4, LOOP_CLR_FD) = 0 [pid 6178] close(4) = 0 [pid 6178] mkdir("./file1", 000) = 0 [pid 6178] mkdir("./bus", 000) = 0 [pid 6178] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... umount2 resumed>) = 0 [ 162.610160][ T6179] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 162.631347][ T6181] REISERFS (device loop2): Using r5 hash to sort names [ 162.638799][ T6180] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 162.648876][ T6181] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 162.651750][ T6178] overlayfs: upper fs needs to support d_type. [pid 6180] <... mount resumed>) = 0 [pid 5068] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./91/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./91/file0" [pid 6180] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 6180] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6180] chdir("./file0" [pid 5068] close(3 [pid 6180] <... chdir resumed>) = 0 [pid 6181] <... mount resumed>) = 0 [pid 6179] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... close resumed>) = 0 [pid 6181] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6180] ioctl(4, LOOP_CLR_FD [pid 6179] creat("./file0/file0", 0202 [pid 5068] rmdir("./91") = 0 [pid 5068] mkdir("./92", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 6181] <... openat resumed>) = 3 [pid 6180] <... ioctl resumed>) = 0 [pid 6179] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6181] chdir("./file0" [pid 6180] close(4 [pid 6179] exit_group(0 [pid 6181] <... chdir resumed>) = 0 [pid 6180] <... close resumed>) = 0 [pid 6179] <... exit_group resumed>) = ? [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6188 ./strace-static-x86_64: Process 6188 attached [pid 6188] chdir("./92") = 0 [pid 6188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6188] setpgid(0, 0) = 0 [pid 6188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6181] ioctl(4, LOOP_CLR_FD [pid 6180] mkdir("./file1", 000 [pid 6188] <... openat resumed>) = 3 [pid 6179] +++ exited with 0 +++ [pid 6188] write(3, "1000", 4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6179, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6188] <... write resumed>) = 4 [pid 6180] <... mkdir resumed>) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 6188] close(3 [pid 6181] <... ioctl resumed>) = 0 [pid 6180] mkdir("./bus", 000 [pid 5071] <... restart_syscall resumed>) = 0 [pid 6188] <... close resumed>) = 0 [ 162.664471][ T6179] overlayfs: failed to resolve './file0': -2 [ 162.675271][ T6181] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 162.688522][ T6182] REISERFS (device loop4): checking transaction log (loop4) [ 162.697766][ T6182] REISERFS (device loop4): Using r5 hash to sort names [ 162.706425][ T6182] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6181] close(4 [pid 6180] <... mkdir resumed>) = 0 [pid 6188] symlink("/dev/binderfs", "./binderfs" [pid 6181] <... close resumed>) = 0 [pid 6188] <... symlink resumed>) = 0 [pid 5071] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6188] memfd_create("syzkaller", 0 [pid 6180] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6181] mkdir("./file1", 000 [pid 6188] <... memfd_create resumed>) = 3 [pid 6181] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... openat resumed>) = 3 [pid 6188] <... mmap resumed>) = 0x7f7f7af80000 [pid 6181] mkdir("./bus", 000 [pid 5071] fstat(3, [pid 6181] <... mkdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6181] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./90/binderfs") = 0 [ 162.724799][ T6182] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 162.737407][ T6180] overlayfs: upper fs needs to support d_type. [ 162.745219][ T6180] overlayfs: upper fs does not support tmpfile. [ 162.746457][ T6178] overlayfs: upper fs does not support tmpfile. [ 162.753223][ T6181] overlayfs: upper fs needs to support d_type. [ 162.766574][ T6180] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5071] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6182] <... mount resumed>) = 0 [pid 6182] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6180] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6182] chdir("./file0" [pid 6180] creat("./file0/file0", 0202 [pid 6182] <... chdir resumed>) = 0 [pid 6181] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6180] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6182] ioctl(4, LOOP_CLR_FD [pid 6181] creat("./file0/file0", 0202 [ 162.775075][ T6181] overlayfs: upper fs does not support tmpfile. [ 162.785410][ T6180] overlayfs: failed to resolve './file0': -2 [ 162.792218][ T6181] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 162.801623][ T6181] overlayfs: failed to resolve './file0': -2 [ 162.811396][ T6178] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6180] exit_group(0 [pid 6182] <... ioctl resumed>) = 0 [pid 6181] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6180] <... exit_group resumed>) = ? [pid 6182] close(4 [pid 6181] exit_group(0 [pid 6180] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6180, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 6182] <... close resumed>) = 0 [pid 6182] mkdir("./file1", 000 [pid 6181] <... exit_group resumed>) = ? [pid 6178] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6182] <... mkdir resumed>) = 0 [pid 6182] mkdir("./bus", 000 [pid 6181] +++ exited with 0 +++ [pid 6178] creat("./file0/file0", 0202 [pid 6182] <... mkdir resumed>) = 0 [pid 6178] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6181, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [ 162.821294][ T6178] overlayfs: failed to resolve './file0': -2 [pid 6182] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6178] exit_group(0) = ? [pid 5073] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6178] +++ exited with 0 +++ [pid 5070] umount2("./90", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6178, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./91/binderfs") = 0 [pid 5073] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] fstat(3, [pid 5070] openat(AT_FDCWD, "./90", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5070] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] fstat(3, [pid 5073] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] lstat("./92/binderfs", [pid 5070] getdents64(3, [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./92/binderfs" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... unlink resumed>) = 0 [pid 5070] umount2("./90/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./90/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./90/binderfs" [pid 6188] 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"..., 4194304 [pid 5070] <... unlink resumed>) = 0 [ 162.858582][ T6182] overlayfs: upper fs needs to support d_type. [pid 5070] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./90/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./90/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] close(4 [pid 5070] openat(AT_FDCWD, "./90/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5071] rmdir("./90/file0" [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./90/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] close(3 [pid 5070] rmdir("./90" [pid 5071] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] rmdir("./90" [pid 5070] mkdir("./91", 0777 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5071] mkdir("./91", 0777 [pid 5070] ioctl(3, LOOP_CLR_FD) = 0 [pid 5070] close(3 [pid 5071] <... mkdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 162.899903][ T6182] overlayfs: upper fs does not support tmpfile. [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6189 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6189 attached [pid 6189] chdir("./91") = 0 [pid 6189] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6190 [pid 6189] <... prctl resumed>) = 0 [pid 6189] setpgid(0, 0) = 0 [pid 6189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 6190 attached ) = 3 [pid 6189] write(3, "1000", 4) = 4 [pid 6190] chdir("./91" [pid 6189] close(3) = 0 [pid 6189] symlink("/dev/binderfs", "./binderfs" [pid 6190] <... chdir resumed>) = 0 [pid 6189] <... symlink resumed>) = 0 [pid 6189] memfd_create("syzkaller", 0) = 3 [pid 6189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6190] setpgid(0, 0) = 0 [pid 6190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6190] write(3, "1000", 4) = 4 [ 162.957868][ T6182] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6190] close(3) = 0 [pid 6190] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 6190] memfd_create("syzkaller", 0) = 3 [pid 6190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6182] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6182] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6182] exit_group(0 [pid 5069] <... umount2 resumed>) = 0 [pid 6182] <... exit_group resumed>) = ? [pid 5069] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6182] +++ exited with 0 +++ [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6182, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5069] lstat("./91/file0", [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] lstat("./92/file0", [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 163.006462][ T6182] overlayfs: failed to resolve './file0': -2 [pid 5072] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 5073] <... openat resumed>) = 4 [pid 5072] lstat("./91/binderfs", [pid 5069] fstat(4, [pid 5073] fstat(4, [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] unlink("./91/binderfs" [pid 5069] getdents64(4, [pid 6188] <... write resumed>) = 4194304 [pid 5073] getdents64(4, [pid 5072] <... unlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6188] munmap(0x7f7f7af80000, 4194304 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 6190] 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"..., 4194304 [pid 6188] <... munmap resumed>) = 0 [pid 5073] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6188] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] close(4 [pid 6188] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 6188] ioctl(4, LOOP_SET_FD, 3 [pid 5073] close(4 [pid 5069] rmdir("./91/file0" [pid 6188] <... ioctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 6189] 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"..., 4194304 [pid 5073] rmdir("./92/file0" [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] rmdir("./91" [pid 5073] getdents64(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] mkdir("./92", 0777 [pid 5073] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6191 [pid 6188] close(3) = 0 [pid 6188] mkdir("./file0", 0777./strace-static-x86_64: Process 6191 attached ) = 0 [pid 5073] rmdir("./92" [pid 6191] chdir("./92" [pid 6188] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... rmdir resumed>) = 0 [pid 6191] <... chdir resumed>) = 0 [pid 5073] mkdir("./93", 0777 [pid 6191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... mkdir resumed>) = 0 [pid 6191] <... prctl resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6191] setpgid(0, 0 [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6191] <... setpgid resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] close(3 [pid 6191] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 6191] write(3, "1000", 4) = 4 [pid 6191] close(3) = 0 [pid 6191] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6191] memfd_create("syzkaller", 0) = 3 [pid 6191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6193 [ 163.095235][ T6188] loop0: detected capacity change from 0 to 8192 [ 163.132542][ T6188] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 ./strace-static-x86_64: Process 6193 attached [pid 6193] chdir("./93") = 0 [pid 6193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6193] setpgid(0, 0) = 0 [pid 6193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6193] write(3, "1000", 4) = 4 [pid 6193] close(3) = 0 [pid 6193] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6193] memfd_create("syzkaller", 0) = 3 [pid 6193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6191] 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"..., 4194304 [pid 6189] <... write resumed>) = 4194304 [ 163.189396][ T6188] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 163.217118][ T6188] REISERFS (device loop0): using ordered data mode [ 163.230522][ T6188] reiserfs: using flush barriers [pid 5072] lstat("./91/file0", [pid 6190] <... write resumed>) = 4194304 [pid 6190] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6190] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6189] munmap(0x7f7f7af80000, 4194304 [pid 5072] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6189] <... munmap resumed>) = 0 [pid 6189] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6189] <... openat resumed>) = 4 [pid 5072] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6189] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... openat resumed>) = 4 [pid 6190] <... openat resumed>) = 4 [pid 6190] ioctl(4, LOOP_SET_FD, 3 [pid 5072] fstat(4, [pid 6193] 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"..., 4194304 [pid 6189] <... ioctl resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6189] close(3 [pid 5072] getdents64(4, [pid 6189] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6189] mkdir("./file0", 0777 [pid 5072] getdents64(4, [pid 6189] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6189] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] close(4) = 0 [pid 5072] rmdir("./91/file0" [pid 6190] <... ioctl resumed>) = 0 [pid 6190] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 6190] <... close resumed>) = 0 [pid 5072] getdents64(3, [pid 6190] mkdir("./file0", 0777 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6190] <... mkdir resumed>) = 0 [ 163.236697][ T6188] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 163.258752][ T6189] loop2: detected capacity change from 0 to 8192 [ 163.262075][ T6190] loop3: detected capacity change from 0 to 8192 [ 163.273043][ T6188] REISERFS (device loop0): checking transaction log (loop0) [pid 5072] close(3 [pid 6190] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./91") = 0 [pid 5072] mkdir("./92", 0777) = 0 [ 163.293037][ T6189] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 163.307174][ T6188] REISERFS (device loop0): Using r5 hash to sort names [ 163.318274][ T6188] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6193] <... write resumed>) = 4194304 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6193] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6193] <... munmap resumed>) = 0 [pid 5072] close(3 [pid 6193] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6191] <... write resumed>) = 4194304 [pid 5072] <... close resumed>) = 0 [pid 6193] <... openat resumed>) = 4 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6193] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6196 [pid 6193] <... ioctl resumed>) = 0 [pid 6193] close(3) = 0 [pid 6193] mkdir("./file0", 0777) = 0 [pid 6193] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6191] munmap(0x7f7f7af80000, 4194304./strace-static-x86_64: Process 6196 attached [ 163.332375][ T6190] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 163.336693][ T6189] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 163.356066][ T6188] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 163.363087][ T6190] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 163.370588][ T6193] loop5: detected capacity change from 0 to 8192 [pid 6196] chdir("./92" [pid 6191] <... munmap resumed>) = 0 [pid 6191] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6191] ioctl(4, LOOP_SET_FD, 3 [pid 6196] <... chdir resumed>) = 0 [pid 6191] <... ioctl resumed>) = 0 [pid 6188] <... mount resumed>) = 0 [pid 6196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6191] close(3 [pid 6188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6191] <... close resumed>) = 0 [pid 6188] <... openat resumed>) = 3 [pid 6191] mkdir("./file0", 0777 [pid 6188] chdir("./file0" [pid 6191] <... mkdir resumed>) = 0 [pid 6188] <... chdir resumed>) = 0 [pid 6191] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6188] ioctl(4, LOOP_CLR_FD) = 0 [ 163.390116][ T6189] REISERFS (device loop2): using ordered data mode [ 163.394423][ T6191] loop1: detected capacity change from 0 to 8192 [ 163.397957][ T6193] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 163.403517][ T6190] REISERFS (device loop3): using ordered data mode [ 163.416181][ T6193] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 163.423207][ T6190] reiserfs: using flush barriers [ 163.432440][ T6193] REISERFS (device loop5): using ordered data mode [pid 6188] close(4 [pid 6196] <... prctl resumed>) = 0 [pid 6188] <... close resumed>) = 0 [pid 6196] setpgid(0, 0 [pid 6188] mkdir("./file1", 000 [pid 6196] <... setpgid resumed>) = 0 [pid 6188] <... mkdir resumed>) = 0 [pid 6196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6188] mkdir("./bus", 000 [pid 6196] <... openat resumed>) = 3 [pid 6188] <... mkdir resumed>) = 0 [pid 6196] write(3, "1000", 4 [pid 6188] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6196] <... write resumed>) = 4 [pid 6196] close(3) = 0 [pid 6196] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6196] memfd_create("syzkaller", 0) = 3 [pid 6196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 163.443632][ T6189] reiserfs: using flush barriers [ 163.449792][ T6189] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 163.454825][ T6193] reiserfs: using flush barriers [ 163.471646][ T6189] REISERFS (device loop2): checking transaction log (loop2) [ 163.480114][ T6188] overlayfs: upper fs needs to support d_type. [ 163.480712][ T6189] REISERFS (device loop2): Using r5 hash to sort names [pid 6189] <... mount resumed>) = 0 [pid 6189] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 163.493942][ T6191] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 163.494194][ T6189] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 163.509546][ T6188] overlayfs: upper fs does not support tmpfile. [ 163.519733][ T6189] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6189] chdir("./file0") = 0 [ 163.539490][ T6190] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 163.553999][ T6191] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 163.556523][ T6190] REISERFS (device loop3): checking transaction log (loop3) [ 163.573559][ T6193] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6189] ioctl(4, LOOP_CLR_FD) = 0 [pid 6196] 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"..., 4194304 [pid 6189] close(4) = 0 [pid 6189] mkdir("./file1", 000) = 0 [pid 6189] mkdir("./bus", 000) = 0 [ 163.590518][ T6190] REISERFS (device loop3): Using r5 hash to sort names [ 163.601119][ T6188] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 163.611380][ T6191] REISERFS (device loop1): using ordered data mode [ 163.620375][ T6189] overlayfs: upper fs needs to support d_type. [pid 6189] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6188] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6188] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6188] exit_group(0) = ? [pid 6188] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6188, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=21 /* 0.21 s */} --- [ 163.639869][ T6190] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 163.646314][ T6191] reiserfs: using flush barriers [ 163.653670][ T6189] overlayfs: upper fs does not support tmpfile. [ 163.664531][ T6188] overlayfs: failed to resolve './file0': -2 [ 163.664635][ T6193] REISERFS (device loop5): checking transaction log (loop5) [ 163.678646][ T6189] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 163.685848][ T6190] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6190] <... mount resumed>) = 0 [pid 5068] unlink("./92/binderfs") = 0 [pid 5068] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6190] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 163.697297][ T6193] REISERFS (device loop5): Using r5 hash to sort names [ 163.704029][ T6191] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 163.705863][ T6189] overlayfs: failed to resolve './file0': -2 [ 163.726935][ T6193] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6190] chdir("./file0") = 0 [pid 6193] <... mount resumed>) = 0 [pid 6189] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6196] <... write resumed>) = 4194304 [pid 6193] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6190] ioctl(4, LOOP_CLR_FD [pid 6189] creat("./file0/file0", 0202 [pid 6196] munmap(0x7f7f7af80000, 4194304 [pid 6193] <... openat resumed>) = 3 [pid 6190] <... ioctl resumed>) = 0 [pid 6189] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6193] chdir("./file0" [pid 6190] close(4 [pid 6189] exit_group(0 [pid 6193] <... chdir resumed>) = 0 [pid 6190] <... close resumed>) = 0 [pid 6189] <... exit_group resumed>) = ? [pid 6193] ioctl(4, LOOP_CLR_FD [pid 6190] mkdir("./file1", 000 [pid 6189] +++ exited with 0 +++ [pid 6193] <... ioctl resumed>) = 0 [pid 6190] <... mkdir resumed>) = 0 [pid 6193] close(4 [pid 6190] mkdir("./bus", 000 [pid 6193] <... close resumed>) = 0 [pid 6190] <... mkdir resumed>) = 0 [pid 6193] mkdir("./file1", 000 [pid 6190] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6193] <... mkdir resumed>) = 0 [ 163.740325][ T6193] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 163.751615][ T6191] REISERFS (device loop1): checking transaction log (loop1) [ 163.770113][ T6191] REISERFS (device loop1): Using r5 hash to sort names [ 163.781718][ T6190] overlayfs: upper fs needs to support d_type. [pid 6196] <... munmap resumed>) = 0 [pid 6193] mkdir("./bus", 000) = 0 [pid 6193] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6196] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6196] ioctl(4, LOOP_SET_FD, 3 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6189, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5068] <... umount2 resumed>) = 0 [pid 6191] <... mount resumed>) = 0 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 5068] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6191] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... restart_syscall resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] <... openat resumed>) = 3 [pid 5068] lstat("./92/file0", [pid 6191] chdir("./file0" [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6191] <... chdir resumed>) = 0 [pid 5070] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 163.788650][ T6191] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 163.791085][ T6196] loop4: detected capacity change from 0 to 8192 [ 163.808304][ T6193] overlayfs: upper fs needs to support d_type. [ 163.809858][ T6191] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 163.817010][ T6193] overlayfs: upper fs does not support tmpfile. [ 163.825070][ T6190] overlayfs: upper fs does not support tmpfile. [ 163.838597][ T6190] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6191] ioctl(4, LOOP_CLR_FD) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6191] close(4 [pid 5070] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6191] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 3 [pid 6191] mkdir("./file1", 000 [pid 5068] fstat(4, [pid 6191] <... mkdir resumed>) = 0 [pid 6191] mkdir("./bus", 000 [pid 5070] fstat(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, [pid 6191] <... mkdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] getdents64(4, [pid 6191] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] close(4 [pid 5070] lstat("./91/binderfs", [pid 5068] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] rmdir("./92/file0" [pid 5070] unlink("./91/binderfs" [pid 5068] <... rmdir resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3) = 0 [pid 5068] rmdir("./92") = 0 [pid 5068] mkdir("./93", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6199 [pid 6190] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6196] <... ioctl resumed>) = 0 [pid 6196] close(3) = 0 [pid 6196] mkdir("./file0", 0777 [pid 6190] creat("./file0/file0", 0202 [pid 6196] <... mkdir resumed>) = 0 [pid 6190] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6196] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 6199 attached [pid 6190] exit_group(0 [pid 6199] chdir("./93" [pid 6190] <... exit_group resumed>) = ? [pid 6199] <... chdir resumed>) = 0 [pid 6190] +++ exited with 0 +++ [ 163.850934][ T6190] overlayfs: failed to resolve './file0': -2 [ 163.864658][ T6191] overlayfs: upper fs needs to support d_type. [ 163.869466][ T6193] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 163.872107][ T6191] overlayfs: upper fs does not support tmpfile. [pid 6199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6190, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 6199] setpgid(0, 0) = 0 [pid 6199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6199] write(3, "1000", 4) = 4 [pid 6199] close(3) = 0 [pid 6199] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6199] memfd_create("syzkaller", 0) = 3 [pid 6199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 163.918157][ T6193] overlayfs: failed to resolve './file0': -2 [ 163.953849][ T6196] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] umount2("./91", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./91", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./91/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./91/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./91/binderfs") = 0 [pid 5071] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6193] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6193] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6191] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6193] exit_group(0 [ 163.964501][ T6191] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 163.975226][ T6191] overlayfs: failed to resolve './file0': -2 [ 163.981416][ T6196] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 163.990831][ T6196] REISERFS (device loop4): using ordered data mode [ 163.997551][ T6196] reiserfs: using flush barriers [pid 6191] creat("./file0/file0", 0202 [pid 6193] <... exit_group resumed>) = ? [pid 6191] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = 0 [pid 6193] +++ exited with 0 +++ [pid 6191] exit_group(0 [pid 5070] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6191] <... exit_group resumed>) = ? [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6193, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 6191] +++ exited with 0 +++ [pid 5073] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6191, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5073] getdents64(3, [pid 5070] lstat("./91/file0", [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5073] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./93/binderfs", [pid 5070] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5069] lstat("./92/binderfs", [pid 5073] unlink("./93/binderfs" [pid 5071] <... umount2 resumed>) = 0 [pid 5070] fstat(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 164.004427][ T6196] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 164.026890][ T6196] REISERFS (device loop4): checking transaction log (loop4) [ 164.035761][ T6196] REISERFS (device loop4): Using r5 hash to sort names [ 164.042935][ T6196] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6199] 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"..., 4194304 [pid 5073] <... unlink resumed>) = 0 [pid 5069] unlink("./92/binderfs" [pid 5073] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5071] lstat("./91/file0", [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5071] umount2("./91/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4 [pid 5071] openat(AT_FDCWD, "./91/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 6199] <... write resumed>) = 4194304 [pid 6196] <... mount resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 6199] munmap(0x7f7f7af80000, 4194304 [pid 6196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] fstat(4, [pid 5070] rmdir("./91/file0" [pid 6199] <... munmap resumed>) = 0 [ 164.082109][ T6196] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6199] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6196] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 6199] <... openat resumed>) = 4 [pid 6196] chdir("./file0" [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 6199] ioctl(4, LOOP_SET_FD, 3 [pid 6196] <... chdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6196] ioctl(4, LOOP_CLR_FD [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6196] <... ioctl resumed>) = 0 [pid 5071] close(4 [pid 5070] close(3 [pid 6196] close(4 [pid 5071] <... close resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 6199] <... ioctl resumed>) = 0 [pid 6196] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5071] rmdir("./91/file0" [pid 5070] rmdir("./91" [pid 5069] <... umount2 resumed>) = 0 [pid 6199] close(3 [pid 6196] mkdir("./file1", 000 [pid 5073] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6199] <... close resumed>) = 0 [pid 6196] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(3, [pid 5070] mkdir("./92", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6199] mkdir("./file0", 0777 [pid 6196] mkdir("./bus", 000 [pid 5073] lstat("./93/file0", [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6199] <... mkdir resumed>) = 0 [pid 6196] <... mkdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] close(3 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] lstat("./92/file0", [pid 6199] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6196] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./91" [pid 5073] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 3 [ 164.151519][ T6199] loop0: detected capacity change from 0 to 8192 [ 164.186763][ T6196] overlayfs: upper fs needs to support d_type. [ 164.192989][ T6196] overlayfs: upper fs does not support tmpfile. [pid 5069] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] fstat(4, [pid 5071] mkdir("./92", 0777 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./93/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./93") = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5070] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5073] mkdir("./94", 0777) = 0 [pid 5070] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6202 ./strace-static-x86_64: Process 6202 attached [pid 6202] chdir("./94") = 0 [pid 6202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6202] setpgid(0, 0) = 0 [pid 6202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6202] write(3, "1000", 4) = 4 [pid 6202] close(3) = 0 [pid 6202] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6202] memfd_create("syzkaller", 0) = 3 [pid 6202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] fstat(4, [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] getdents64(4, [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6203 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] getdents64(4, [pid 5071] close(3 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./92/file0" [pid 5071] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6204 [pid 5069] close(3) = 0 [pid 5069] rmdir("./92") = 0 ./strace-static-x86_64: Process 6203 attached [ 164.200820][ T6199] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 164.204649][ T6196] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 164.214783][ T6199] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 164.223083][ T6196] overlayfs: failed to resolve './file0': -2 [ 164.230563][ T6199] REISERFS (device loop0): using ordered data mode [pid 6196] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] mkdir("./93", 0777 [pid 6203] chdir("./92") = 0 [pid 6203] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6203] setpgid(0, 0) = 0 [pid 6203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6203] write(3, "1000", 4) = 4 [pid 6203] close(3) = 0 [pid 6203] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... mkdir resumed>) = 0 [pid 6196] creat("./file0/file0", 0202 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 6204 attached [pid 5069] close(3 [pid 6196] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6204] chdir("./92") = 0 [pid 6204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6204] setpgid(0, 0) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6205 [pid 6204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6203] <... symlink resumed>) = 0 [pid 6196] exit_group(0) = ? [pid 6204] <... openat resumed>) = 3 [pid 6204] write(3, "1000", 4) = 4 [pid 6204] close(3) = 0 [pid 6204] symlink("/dev/binderfs", "./binderfs"./strace-static-x86_64: Process 6205 attached ) = 0 [pid 6205] chdir("./93" [pid 6204] memfd_create("syzkaller", 0 [pid 6203] memfd_create("syzkaller", 0 [pid 6205] <... chdir resumed>) = 0 [pid 6204] <... memfd_create resumed>) = 3 [pid 6205] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6203] <... memfd_create resumed>) = 3 [pid 6196] +++ exited with 0 +++ [pid 6203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6205] <... prctl resumed>) = 0 [pid 6204] <... mmap resumed>) = 0x7f7f7af80000 [pid 6203] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6196, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 6205] setpgid(0, 0) = 0 [pid 6205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 6205] <... openat resumed>) = 3 [pid 5072] <... restart_syscall resumed>) = 0 [pid 6205] write(3, "1000", 4) = 4 [pid 6205] close(3) = 0 [pid 6205] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5072] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6205] memfd_create("syzkaller", 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6205] <... memfd_create resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... openat resumed>) = 3 [pid 6205] <... mmap resumed>) = 0x7f7f7af80000 [ 164.265747][ T6199] reiserfs: using flush barriers [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./92/binderfs") = 0 [pid 6205] 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"..., 4194304 [pid 5072] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6205] <... write resumed>) = 4194304 [pid 6202] 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"..., 4194304 [pid 6205] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6205] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 164.336058][ T6199] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6205] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6204] 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"..., 4194304 [pid 6205] close(3) = 0 [pid 6205] mkdir("./file0", 0777) = 0 [pid 6205] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 164.386764][ T6205] loop1: detected capacity change from 0 to 8192 [pid 6203] 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"..., 4194304 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 164.430590][ T6205] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 164.431541][ T6199] REISERFS (device loop0): checking transaction log (loop0) [pid 5072] lstat("./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./92/file0" [pid 6202] <... write resumed>) = 4194304 [pid 5072] <... rmdir resumed>) = 0 [pid 6202] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6202] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 164.473395][ T6205] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 164.482879][ T6205] REISERFS (device loop1): using ordered data mode [ 164.499073][ T6205] reiserfs: using flush barriers [ 164.505678][ T6205] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6202] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5072] getdents64(3, [pid 6202] close(3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6203] <... write resumed>) = 4194304 [pid 6202] <... close resumed>) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./92") = 0 [pid 5072] mkdir("./93", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 6203] munmap(0x7f7f7af80000, 4194304 [ 164.510172][ T6202] loop5: detected capacity change from 0 to 8192 [ 164.523678][ T6199] REISERFS (device loop0): Using r5 hash to sort names [ 164.543737][ T6205] REISERFS (device loop1): checking transaction log (loop1) [ 164.551885][ T6199] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 164.562517][ T6205] REISERFS (device loop1): Using r5 hash to sort names [pid 6202] mkdir("./file0", 0777 [pid 5072] <... close resumed>) = 0 [pid 6203] <... munmap resumed>) = 0 [pid 6202] <... mkdir resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6207 ./strace-static-x86_64: Process 6207 attached [pid 6204] <... write resumed>) = 4194304 [pid 6203] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6202] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6199] <... mount resumed>) = 0 [pid 6207] chdir("./93" [pid 6204] munmap(0x7f7f7af80000, 4194304 [pid 6203] <... openat resumed>) = 4 [pid 6199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6207] <... chdir resumed>) = 0 [pid 6204] <... munmap resumed>) = 0 [pid 6203] ioctl(4, LOOP_SET_FD, 3 [pid 6199] <... openat resumed>) = 3 [pid 6207] prctl(PR_SET_PDEATHSIG, SIGKILL [ 164.566400][ T6199] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 164.578192][ T6205] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 164.594274][ T6205] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 164.599638][ T6203] loop2: detected capacity change from 0 to 8192 [ 164.610903][ T6202] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6204] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6199] chdir("./file0" [pid 6207] <... prctl resumed>) = 0 [pid 6199] <... chdir resumed>) = 0 [pid 6204] <... openat resumed>) = 4 [pid 6207] setpgid(0, 0 [pid 6204] ioctl(4, LOOP_SET_FD, 3 [pid 6199] ioctl(4, LOOP_CLR_FD [pid 6205] <... mount resumed>) = 0 [pid 6207] <... setpgid resumed>) = 0 [pid 6199] <... ioctl resumed>) = 0 [pid 6205] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6205] chdir("./file0") = 0 [pid 6205] ioctl(4, LOOP_CLR_FD) = 0 [pid 6205] close(4 [pid 6199] close(4 [pid 6207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6204] <... ioctl resumed>) = 0 [pid 6207] <... openat resumed>) = 3 [pid 6205] <... close resumed>) = 0 [pid 6203] <... ioctl resumed>) = 0 [pid 6199] <... close resumed>) = 0 [pid 6205] mkdir("./file1", 000) = 0 [pid 6205] mkdir("./bus", 000) = 0 [pid 6205] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 164.624226][ T6204] loop3: detected capacity change from 0 to 8192 [ 164.631970][ T6202] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 164.652210][ T6202] REISERFS (device loop5): using ordered data mode [ 164.658989][ T6202] reiserfs: using flush barriers [ 164.659820][ T6205] overlayfs: upper fs needs to support d_type. [pid 6207] write(3, "1000", 4 [pid 6204] close(3 [pid 6203] close(3 [pid 6199] mkdir("./file1", 000 [pid 6207] <... write resumed>) = 4 [pid 6204] <... close resumed>) = 0 [pid 6203] <... close resumed>) = 0 [pid 6199] <... mkdir resumed>) = 0 [pid 6207] close(3 [pid 6204] mkdir("./file0", 0777 [pid 6203] mkdir("./file0", 0777 [pid 6199] mkdir("./bus", 000 [pid 6207] <... close resumed>) = 0 [pid 6204] <... mkdir resumed>) = 0 [pid 6203] <... mkdir resumed>) = 0 [pid 6199] <... mkdir resumed>) = 0 [pid 6207] symlink("/dev/binderfs", "./binderfs" [pid 6204] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6203] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6199] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6207] <... symlink resumed>) = 0 [pid 6207] memfd_create("syzkaller", 0) = 3 [ 164.670921][ T6202] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 164.703974][ T6199] overlayfs: upper fs needs to support d_type. [ 164.704782][ T6205] overlayfs: upper fs does not support tmpfile. [ 164.710171][ T6199] overlayfs: upper fs does not support tmpfile. [pid 6207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 164.717335][ T6205] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 164.732132][ T6205] overlayfs: failed to resolve './file0': -2 [ 164.739583][ T6199] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 164.739903][ T6204] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 164.746613][ T6203] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6207] 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"..., 4194304 [pid 6205] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6205] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6205] exit_group(0) = ? [pid 6205] +++ exited with 0 +++ [ 164.746632][ T6203] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 164.746715][ T6203] REISERFS (device loop2): using ordered data mode [ 164.760526][ T6204] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 164.784060][ T6202] REISERFS (device loop5): checking transaction log (loop5) [ 164.791190][ T6199] overlayfs: failed to resolve './file0': -2 [ 164.813487][ T6204] REISERFS (device loop3): using ordered data mode [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6205, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5069] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./93/binderfs") = 0 [ 164.814602][ T6202] REISERFS (device loop5): Using r5 hash to sort names [ 164.820506][ T6204] reiserfs: using flush barriers [ 164.840779][ T6203] reiserfs: using flush barriers [ 164.845550][ T6204] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 164.847304][ T6202] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6199] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6199] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6199] exit_group(0) = ? [pid 6202] <... mount resumed>) = 0 [ 164.874635][ T6203] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 164.891512][ T6203] REISERFS (device loop2): checking transaction log (loop2) [ 164.899409][ T6202] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 164.910057][ T6203] REISERFS (device loop2): Using r5 hash to sort names [pid 6202] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6199] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6199, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5068] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6202] <... openat resumed>) = 3 [pid 5068] fstat(3, [pid 6202] chdir("./file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6202] <... chdir resumed>) = 0 [pid 5068] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6202] ioctl(4, LOOP_CLR_FD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6207] <... write resumed>) = 4194304 [pid 6202] <... ioctl resumed>) = 0 [pid 5068] lstat("./93/binderfs", [pid 6202] close(4 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6202] <... close resumed>) = 0 [pid 5068] unlink("./93/binderfs") = 0 [pid 5068] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6203] <... mount resumed>) = 0 [pid 6202] mkdir("./file1", 000) = 0 [pid 6202] mkdir("./bus", 000 [pid 6203] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6202] <... mkdir resumed>) = 0 [ 164.920737][ T6203] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 164.944069][ T6203] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 164.964096][ T6204] REISERFS (device loop3): checking transaction log (loop3) [pid 6203] <... openat resumed>) = 3 [pid 6202] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 164.975283][ T6204] REISERFS (device loop3): Using r5 hash to sort names [ 164.984334][ T6202] overlayfs: upper fs needs to support d_type. [ 164.989638][ T6207] loop4: detected capacity change from 0 to 8192 [ 164.990526][ T6202] overlayfs: upper fs does not support tmpfile. [ 164.991086][ T6202] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 165.010811][ T6204] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6207] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6207] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6207] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./93/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./93") = 0 [pid 5069] mkdir("./94", 0777 [pid 6203] chdir("./file0" [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6211 [pid 6207] <... ioctl resumed>) = 0 [pid 6207] close(3) = 0 [pid 6207] mkdir("./file0", 0777) = 0 [pid 6207] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 6211 attached [pid 6203] <... chdir resumed>) = 0 [pid 6203] ioctl(4, LOOP_CLR_FD) = 0 [pid 6211] chdir("./94") = 0 [pid 6211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6211] setpgid(0, 0) = 0 [pid 6211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6203] close(4 [pid 6211] <... openat resumed>) = 3 [pid 6211] write(3, "1000", 4) = 4 [pid 6211] close(3 [pid 6203] <... close resumed>) = 0 [pid 6211] <... close resumed>) = 0 [pid 6211] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6211] memfd_create("syzkaller", 0) = 3 [pid 6203] mkdir("./file1", 000 [pid 6211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6203] <... mkdir resumed>) = 0 [pid 6211] <... mmap resumed>) = 0x7f7f7af80000 [pid 6203] mkdir("./bus", 000) = 0 [ 165.031022][ T6207] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 165.066787][ T6203] overlayfs: upper fs needs to support d_type. [ 165.073025][ T6203] overlayfs: upper fs does not support tmpfile. [pid 6203] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6204] <... mount resumed>) = 0 [pid 6204] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6204] chdir("./file0") = 0 [pid 6204] ioctl(4, LOOP_CLR_FD) = 0 [pid 6204] close(4) = 0 [ 165.074072][ T6207] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 165.090761][ T6204] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 165.104261][ T6203] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 165.112562][ T6203] overlayfs: failed to resolve './file0': -2 [pid 6204] mkdir("./file1", 000 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6204] <... mkdir resumed>) = 0 [pid 5068] lstat("./93/file0", [pid 6211] 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"..., 4194304 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6204] mkdir("./bus", 000) = 0 [pid 5068] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6204] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [pid 6203] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6202] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6202] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 165.126838][ T6202] overlayfs: failed to resolve './file0': -2 [ 165.145331][ T6204] overlayfs: upper fs needs to support d_type. [ 165.152899][ T6207] REISERFS (device loop4): using ordered data mode [ 165.166080][ T6207] reiserfs: using flush barriers [pid 5068] getdents64(4, [pid 6203] creat("./file0/file0", 0202 [pid 6202] exit_group(0 [pid 6203] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6202] <... exit_group resumed>) = ? [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6203] exit_group(0 [pid 6202] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6202, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5073] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./94/binderfs") = 0 [pid 5073] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6203] <... exit_group resumed>) = ? [pid 5068] close(4 [pid 6203] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6203, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5068] rmdir("./93/file0") = 0 [pid 5070] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./92/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./92/binderfs") = 0 [ 165.177603][ T6204] overlayfs: upper fs does not support tmpfile. [ 165.191032][ T6207] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 165.204939][ T6204] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 165.219810][ T6207] REISERFS (device loop4): checking transaction log (loop4) [pid 5070] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./93" [pid 6207] <... mount resumed>) = 0 [pid 6207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... rmdir resumed>) = 0 [pid 6207] <... openat resumed>) = 3 [pid 5068] mkdir("./94", 0777 [pid 6207] chdir("./file0" [pid 5068] <... mkdir resumed>) = 0 [pid 6207] <... chdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6207] ioctl(4, LOOP_CLR_FD [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6207] <... ioctl resumed>) = 0 [pid 5068] close(3 [pid 6207] close(4 [pid 5068] <... close resumed>) = 0 [pid 6207] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6207] mkdir("./file1", 000 [pid 6211] <... write resumed>) = 4194304 [pid 6207] <... mkdir resumed>) = 0 [pid 6207] mkdir("./bus", 000 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6213 [pid 6207] <... mkdir resumed>) = 0 [ 165.229711][ T6207] REISERFS (device loop4): Using r5 hash to sort names [ 165.240629][ T6207] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 165.254368][ T6207] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 165.270593][ T6204] overlayfs: failed to resolve './file0': -2 [pid 6207] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on,"./strace-static-x86_64: Process 6213 attached [pid 6213] chdir("./94") = 0 [pid 6213] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6204] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6213] <... prctl resumed>) = 0 [pid 6204] creat("./file0/file0", 0202 [pid 6213] setpgid(0, 0 [pid 6211] munmap(0x7f7f7af80000, 4194304 [pid 6213] <... setpgid resumed>) = 0 [pid 6204] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6211] <... munmap resumed>) = 0 [pid 6211] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6211] ioctl(4, LOOP_SET_FD, 3 [pid 6213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6204] exit_group(0 [pid 5070] <... umount2 resumed>) = 0 [pid 6213] <... openat resumed>) = 3 [pid 6204] <... exit_group resumed>) = ? [pid 5070] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./92/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6204] +++ exited with 0 +++ [pid 6213] write(3, "1000", 4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6204, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6213] <... write resumed>) = 4 [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6213] close(3) = 0 [pid 5071] umount2("./92", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6213] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./92", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6213] <... symlink resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, [pid 6213] memfd_create("syzkaller", 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6213] <... memfd_create resumed>) = 3 [pid 5071] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] umount2("./92/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6213] <... mmap resumed>) = 0x7f7f7af80000 [pid 6211] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 4 [pid 6211] close(3 [pid 5071] lstat("./92/binderfs", [pid 5070] fstat(4, [pid 6211] <... close resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6211] mkdir("./file0", 0777 [pid 5071] unlink("./92/binderfs" [pid 5070] getdents64(4, [pid 6211] <... mkdir resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6211] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(4, [pid 5073] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4 [pid 5073] lstat("./94/file0", [pid 5070] <... close resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 165.314515][ T6207] overlayfs: upper fs needs to support d_type. [ 165.341258][ T6211] loop1: detected capacity change from 0 to 8192 [ 165.343041][ T6207] overlayfs: upper fs does not support tmpfile. [pid 5070] rmdir("./92/file0" [pid 5073] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, [pid 5073] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5070] close(3 [pid 5073] fstat(4, [pid 5070] <... close resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] rmdir("./92" [pid 5073] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] mkdir("./93", 0777 [pid 5073] getdents64(4, [pid 5070] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] close(4 [pid 5070] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] rmdir("./94/file0" [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... rmdir resumed>) = 0 [ 165.388899][ T6211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 165.393942][ T6207] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 165.413852][ T6211] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 165.423862][ T6211] REISERFS (device loop1): using ordered data mode [ 165.430378][ T6211] reiserfs: using flush barriers [pid 5070] close(3 [pid 5073] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] close(3) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6215 [pid 5073] rmdir("./94") = 0 [pid 5073] mkdir("./95", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6216 attached ./strace-static-x86_64: Process 6215 attached [pid 6213] 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"..., 4194304 [pid 6215] chdir("./93" [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6216 [pid 6216] chdir("./95" [pid 6215] <... chdir resumed>) = 0 [pid 6215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6215] setpgid(0, 0) = 0 [pid 6215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6215] write(3, "1000", 4) = 4 [pid 6215] close(3) = 0 [pid 6216] <... chdir resumed>) = 0 [pid 6215] symlink("/dev/binderfs", "./binderfs") = 0 [ 165.436731][ T6211] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 165.453545][ T6211] REISERFS (device loop1): checking transaction log (loop1) [ 165.461754][ T6211] REISERFS (device loop1): Using r5 hash to sort names [ 165.469431][ T6211] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6215] memfd_create("syzkaller", 0 [pid 6211] <... mount resumed>) = 0 [pid 6215] <... memfd_create resumed>) = 3 [pid 6215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6216] <... prctl resumed>) = 0 [pid 6211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6216] setpgid(0, 0 [pid 6211] <... openat resumed>) = 3 [pid 6216] <... setpgid resumed>) = 0 [pid 6211] chdir("./file0" [pid 6207] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = 0 [pid 6216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6211] <... chdir resumed>) = 0 [pid 6207] creat("./file0/file0", 0202 [pid 5071] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6216] <... openat resumed>) = 3 [pid 6211] ioctl(4, LOOP_CLR_FD [pid 6207] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6216] write(3, "1000", 4 [pid 6211] <... ioctl resumed>) = 0 [pid 6207] exit_group(0 [pid 5071] lstat("./92/file0", [pid 6216] <... write resumed>) = 4 [pid 6211] close(4 [pid 6207] <... exit_group resumed>) = ? [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6216] close(3 [pid 6215] 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"..., 4194304 [pid 6211] <... close resumed>) = 0 [pid 6207] +++ exited with 0 +++ [pid 5071] umount2("./92/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6216] <... close resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6207, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 165.482507][ T6211] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 165.493599][ T6207] overlayfs: failed to resolve './file0': -2 [pid 6216] symlink("/dev/binderfs", "./binderfs" [pid 6211] mkdir("./file1", 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6216] <... symlink resumed>) = 0 [pid 6211] <... mkdir resumed>) = 0 [pid 5072] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./92/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6216] memfd_create("syzkaller", 0 [pid 6211] mkdir("./bus", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 4 [pid 6216] <... memfd_create resumed>) = 3 [pid 6211] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] fstat(4, [pid 6216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6211] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6216] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5072] lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./93/binderfs") = 0 [pid 5072] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./92/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./92") = 0 [ 165.568081][ T6211] overlayfs: upper fs needs to support d_type. [ 165.597131][ T6211] overlayfs: upper fs does not support tmpfile. [pid 5071] mkdir("./93", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 165.615946][ T6211] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6213] <... write resumed>) = 4194304 [pid 5071] close(3 [pid 6213] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... close resumed>) = 0 [pid 6213] <... munmap resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6213] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6217 [pid 6215] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 6217 attached [pid 6216] 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"..., 4194304 [pid 6215] munmap(0x7f7f7af80000, 4194304 [pid 6213] <... ioctl resumed>) = 0 [pid 6217] chdir("./93" [pid 6215] <... munmap resumed>) = 0 [pid 6213] close(3 [pid 6211] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6217] <... chdir resumed>) = 0 [pid 6215] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6213] <... close resumed>) = 0 [pid 6211] creat("./file0/file0", 0202 [pid 6217] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6215] <... openat resumed>) = 4 [pid 6213] mkdir("./file0", 0777 [pid 6211] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6217] <... prctl resumed>) = 0 [pid 6215] ioctl(4, LOOP_SET_FD, 3 [pid 6213] <... mkdir resumed>) = 0 [pid 6211] exit_group(0 [ 165.639261][ T6211] overlayfs: failed to resolve './file0': -2 [ 165.658288][ T6213] loop0: detected capacity change from 0 to 8192 [pid 6217] setpgid(0, 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6217] <... setpgid resumed>) = 0 [pid 6215] <... ioctl resumed>) = 0 [pid 6213] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6211] <... exit_group resumed>) = ? [pid 6217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6211] +++ exited with 0 +++ [pid 6217] <... openat resumed>) = 3 [pid 6217] write(3, "1000", 4 [pid 6215] close(3 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6211, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6217] <... write resumed>) = 4 [pid 6216] <... write resumed>) = 4194304 [pid 6215] <... close resumed>) = 0 [pid 5072] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6217] close(3 [pid 6215] mkdir("./file0", 0777 [pid 6217] <... close resumed>) = 0 [pid 6215] <... mkdir resumed>) = 0 [pid 6217] symlink("/dev/binderfs", "./binderfs" [pid 6215] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6217] <... symlink resumed>) = 0 [pid 6217] memfd_create("syzkaller", 0) = 3 [pid 6217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] <... restart_syscall resumed>) = 0 [pid 6216] munmap(0x7f7f7af80000, 4194304 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6216] <... munmap resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 165.695819][ T6215] loop2: detected capacity change from 0 to 8192 [ 165.709049][ T6213] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 165.723519][ T6213] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 165.732749][ T6213] REISERFS (device loop0): using ordered data mode [pid 6216] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] fstat(4, [pid 5069] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6216] <... openat resumed>) = 4 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6216] ioctl(4, LOOP_SET_FD, 3 [pid 5072] getdents64(4, [pid 5069] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... openat resumed>) = 3 [pid 6216] <... ioctl resumed>) = 0 [pid 5072] getdents64(4, [pid 5069] fstat(3, [ 165.742163][ T6215] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 165.742521][ T6213] reiserfs: using flush barriers [ 165.762825][ T6216] loop5: detected capacity change from 0 to 8192 [ 165.768028][ T6215] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 165.771054][ T6213] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6217] 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"..., 4194304 [pid 6216] close(3 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6216] <... close resumed>) = 0 [pid 5072] close(4 [pid 5069] getdents64(3, [pid 6216] mkdir("./file0", 0777 [pid 5072] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6216] <... mkdir resumed>) = 0 [pid 5072] rmdir("./93/file0" [pid 5069] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6216] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 5069] lstat("./94/binderfs", [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] close(3 [pid 5069] unlink("./94/binderfs" [pid 5072] <... close resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5072] rmdir("./93" [pid 5069] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./94", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6221 [ 165.793792][ T6215] REISERFS (device loop2): using ordered data mode [ 165.796042][ T6213] REISERFS (device loop0): checking transaction log (loop0) [ 165.810188][ T6213] REISERFS (device loop0): Using r5 hash to sort names [ 165.818098][ T6213] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 165.831486][ T6213] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ./strace-static-x86_64: Process 6221 attached [pid 6213] <... mount resumed>) = 0 [pid 6221] chdir("./94" [ 165.842086][ T6215] reiserfs: using flush barriers [ 165.848760][ T6215] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 165.866186][ T6216] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 165.866485][ T6215] REISERFS (device loop2): checking transaction log (loop2) [ 165.888157][ T6215] REISERFS (device loop2): Using r5 hash to sort names [pid 6213] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6221] <... chdir resumed>) = 0 [pid 6213] <... openat resumed>) = 3 [pid 6221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6213] chdir("./file0" [pid 6221] <... prctl resumed>) = 0 [pid 6213] <... chdir resumed>) = 0 [pid 6213] ioctl(4, LOOP_CLR_FD [pid 6221] setpgid(0, 0 [pid 6213] <... ioctl resumed>) = 0 [pid 6213] close(4 [pid 6221] <... setpgid resumed>) = 0 [pid 6213] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 6213] mkdir("./file1", 000 [pid 6221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6213] <... mkdir resumed>) = 0 [pid 5069] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6213] mkdir("./bus", 000) = 0 [ 165.895835][ T6215] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 165.922914][ T6216] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 165.924355][ T6215] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6213] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6221] <... openat resumed>) = 3 [pid 6217] <... write resumed>) = 4194304 [pid 6215] <... mount resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6221] write(3, "1000", 4 [pid 6217] munmap(0x7f7f7af80000, 4194304 [pid 6215] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] lstat("./94/file0", [pid 6221] <... write resumed>) = 4 [pid 6217] <... munmap resumed>) = 0 [pid 6215] <... openat resumed>) = 3 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6221] close(3 [pid 6217] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6215] chdir("./file0" [pid 5069] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6221] <... close resumed>) = 0 [pid 6217] <... openat resumed>) = 4 [pid 6215] <... chdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6221] symlink("/dev/binderfs", "./binderfs" [pid 6217] ioctl(4, LOOP_SET_FD, 3 [pid 6215] ioctl(4, LOOP_CLR_FD [pid 5069] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6221] <... symlink resumed>) = 0 [pid 6215] <... ioctl resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 6221] memfd_create("syzkaller", 0 [pid 6215] close(4 [pid 5069] fstat(4, [pid 6221] <... memfd_create resumed>) = 3 [pid 6215] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [ 165.933248][ T6216] REISERFS (device loop5): using ordered data mode [ 165.944724][ T6213] overlayfs: upper fs needs to support d_type. [ 165.949356][ T6216] reiserfs: using flush barriers [ 165.963666][ T6216] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 165.978245][ T6217] loop3: detected capacity change from 0 to 8192 [ 165.986312][ T6213] overlayfs: upper fs does not support tmpfile. [pid 6215] mkdir("./file1", 000 [pid 5069] getdents64(4, [pid 6221] <... mmap resumed>) = 0x7f7f7af80000 [pid 6217] <... ioctl resumed>) = 0 [pid 6215] <... mkdir resumed>) = 0 [pid 6217] close(3) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6217] mkdir("./file0", 0777) = 0 [pid 6217] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6215] mkdir("./bus", 000 [pid 5069] getdents64(4, [pid 6215] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6215] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] close(4) = 0 [ 165.993703][ T6216] REISERFS (device loop5): checking transaction log (loop5) [ 166.006890][ T6217] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 166.021945][ T6216] REISERFS (device loop5): Using r5 hash to sort names [ 166.035615][ T6215] overlayfs: upper fs needs to support d_type. [pid 5069] rmdir("./94/file0") = 0 [pid 5069] getdents64(3, [pid 6221] 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"..., 4194304 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./94") = 0 [pid 5069] mkdir("./95", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6223 [ 166.041823][ T6215] overlayfs: upper fs does not support tmpfile. ./strace-static-x86_64: Process 6223 attached [pid 6221] <... write resumed>) = 4194304 [pid 6223] chdir("./95") = 0 [pid 6223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6223] setpgid(0, 0) = 0 [pid 6223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6223] write(3, "1000", 4 [pid 6216] <... mount resumed>) = 0 [pid 6223] <... write resumed>) = 4 [pid 6216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6223] close(3) = 0 [pid 6223] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6223] memfd_create("syzkaller", 0) = 3 [pid 6223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6221] munmap(0x7f7f7af80000, 4194304 [pid 6223] <... mmap resumed>) = 0x7f7f7af80000 [pid 6221] <... munmap resumed>) = 0 [pid 6216] <... openat resumed>) = 3 [ 166.072822][ T6216] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 166.080294][ T6213] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 166.085816][ T6216] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 166.102989][ T6217] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 166.112528][ T6217] REISERFS (device loop3): using ordered data mode [pid 6221] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6216] chdir("./file0") = 0 [pid 6221] ioctl(4, LOOP_SET_FD, 3 [pid 6216] ioctl(4, LOOP_CLR_FD) = 0 [pid 6216] close(4) = 0 [pid 6215] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6216] mkdir("./file1", 000 [pid 6215] creat("./file0/file0", 0202 [pid 6216] <... mkdir resumed>) = 0 [pid 6215] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6216] mkdir("./bus", 000 [pid 6215] exit_group(0 [pid 6216] <... mkdir resumed>) = 0 [pid 6215] <... exit_group resumed>) = ? [ 166.119685][ T6217] reiserfs: using flush barriers [ 166.127175][ T6217] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 166.127386][ T6215] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 166.152566][ T6215] overlayfs: failed to resolve './file0': -2 [ 166.152630][ T6221] loop4: detected capacity change from 0 to 8192 [ 166.167152][ T6213] overlayfs: failed to resolve './file0': -2 [pid 6216] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6215] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6215, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5070] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./93/binderfs") = 0 [pid 5070] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6213] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6223] 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"..., 4194304 [pid 6213] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6213] exit_group(0) = ? [pid 6213] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6213, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5068] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6221] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6221] close(3 [pid 5068] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6221] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6221] mkdir("./file0", 0777 [ 166.183870][ T6216] overlayfs: upper fs needs to support d_type. [ 166.190077][ T6216] overlayfs: upper fs does not support tmpfile. [ 166.205733][ T6216] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] fstat(3, [pid 6221] <... mkdir resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6221] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./94/binderfs" [pid 6216] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... unlink resumed>) = 0 [pid 6223] <... write resumed>) = 4194304 [pid 6216] creat("./file0/file0", 0202 [pid 5068] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6216] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6223] munmap(0x7f7f7af80000, 4194304 [ 166.237766][ T6216] overlayfs: failed to resolve './file0': -2 [ 166.253150][ T6221] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 166.267752][ T6217] REISERFS (device loop3): checking transaction log (loop3) [pid 6216] exit_group(0 [pid 6223] <... munmap resumed>) = 0 [pid 6216] <... exit_group resumed>) = ? [pid 6223] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6216] +++ exited with 0 +++ [pid 6223] <... openat resumed>) = 4 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6216, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6223] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... umount2 resumed>) = 0 [pid 5073] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 166.279353][ T6221] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 166.289657][ T6221] REISERFS (device loop4): using ordered data mode [ 166.299551][ T6221] reiserfs: using flush barriers [ 166.315025][ T6221] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 166.318824][ T6217] REISERFS (device loop3): Using r5 hash to sort names [pid 5073] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./95/binderfs") = 0 [pid 5073] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6223] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6223] close(3 [pid 5070] lstat("./93/file0", [pid 6223] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6223] mkdir("./file0", 0777 [pid 5070] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6223] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6223] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./93/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./93") = 0 [pid 5070] mkdir("./94", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6226 ./strace-static-x86_64: Process 6226 attached [ 166.340458][ T6223] loop1: detected capacity change from 0 to 8192 [ 166.348118][ T6221] REISERFS (device loop4): checking transaction log (loop4) [ 166.351889][ T6217] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6226] chdir("./94") = 0 [pid 6226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6226] setpgid(0, 0) = 0 [pid 6226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6226] write(3, "1000", 4) = 4 [pid 6226] close(3) = 0 [pid 6226] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6226] memfd_create("syzkaller", 0) = 3 [pid 6226] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 166.385421][ T6221] REISERFS (device loop4): Using r5 hash to sort names [ 166.395551][ T6223] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(4, [pid 6217] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6221] <... mount resumed>) = 0 [pid 6217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] lstat("./95/file0", [pid 5068] getdents64(4, [pid 6217] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 166.435429][ T6221] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 166.444540][ T6217] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 166.454069][ T6223] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 166.464187][ T6221] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6217] chdir("./file0" [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6217] <... chdir resumed>) = 0 [pid 5073] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6221] <... openat resumed>) = 3 [pid 6217] ioctl(4, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] close(4 [pid 6221] chdir("./file0" [pid 6217] <... ioctl resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 6221] <... chdir resumed>) = 0 [pid 6217] close(4 [pid 5073] <... openat resumed>) = 4 [pid 5068] rmdir("./94/file0" [pid 6221] ioctl(4, LOOP_CLR_FD [pid 6217] <... close resumed>) = 0 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6221] <... ioctl resumed>) = 0 [pid 6217] mkdir("./file1", 000 [pid 5073] getdents64(4, [pid 5068] getdents64(3, [pid 6221] close(4 [pid 6217] <... mkdir resumed>) = 0 [pid 6221] <... close resumed>) = 0 [pid 6217] mkdir("./bus", 000 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6221] mkdir("./file1", 000 [pid 6217] <... mkdir resumed>) = 0 [pid 5073] getdents64(4, [pid 5068] close(3 [pid 6221] <... mkdir resumed>) = 0 [pid 6217] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... close resumed>) = 0 [pid 6221] mkdir("./bus", 000) = 0 [pid 5073] close(4 [pid 5068] rmdir("./94" [pid 6226] 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"..., 4194304 [pid 6221] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... close resumed>) = 0 [ 166.485873][ T6223] REISERFS (device loop1): using ordered data mode [ 166.493005][ T6223] reiserfs: using flush barriers [ 166.509271][ T6217] overlayfs: upper fs needs to support d_type. [ 166.522003][ T6217] overlayfs: upper fs does not support tmpfile. [pid 5068] <... rmdir resumed>) = 0 [pid 5073] rmdir("./95/file0" [pid 5068] mkdir("./95", 0777 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5073] close(3) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] rmdir("./95" [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... rmdir resumed>) = 0 [pid 5068] close(3 [pid 5073] mkdir("./96", 0777 [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6227 [ 166.535505][ T6223] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 166.536902][ T6221] overlayfs: upper fs needs to support d_type. [ 166.563969][ T6217] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6228 ./strace-static-x86_64: Process 6228 attached ./strace-static-x86_64: Process 6227 attached [pid 6228] chdir("./95" [pid 6227] chdir("./96" [pid 6228] <... chdir resumed>) = 0 [pid 6227] <... chdir resumed>) = 0 [pid 6227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6228] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6217] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6227] <... prctl resumed>) = 0 [pid 6227] setpgid(0, 0) = 0 [pid 6227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6227] write(3, "1000", 4 [pid 6228] <... prctl resumed>) = 0 [pid 6227] <... write resumed>) = 4 [pid 6217] creat("./file0/file0", 0202 [pid 6228] setpgid(0, 0 [pid 6227] close(3 [pid 6217] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6228] <... setpgid resumed>) = 0 [pid 6227] <... close resumed>) = 0 [pid 6217] exit_group(0 [pid 6227] symlink("/dev/binderfs", "./binderfs" [pid 6228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6227] <... symlink resumed>) = 0 [pid 6217] <... exit_group resumed>) = ? [pid 6228] <... openat resumed>) = 3 [pid 6227] memfd_create("syzkaller", 0) = 3 [pid 6228] write(3, "1000", 4 [pid 6227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6217] +++ exited with 0 +++ [pid 6227] <... mmap resumed>) = 0x7f7f7af80000 [ 166.582049][ T6217] overlayfs: failed to resolve './file0': -2 [ 166.604398][ T6221] overlayfs: upper fs does not support tmpfile. [ 166.616319][ T6223] REISERFS (device loop1): checking transaction log (loop1) [ 166.623101][ T6221] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6228] <... write resumed>) = 4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6217, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./93", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./93", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6228] close(3 [pid 5071] umount2("./93/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6228] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6228] symlink("/dev/binderfs", "./binderfs" [pid 5071] lstat("./93/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6228] <... symlink resumed>) = 0 [pid 5071] unlink("./93/binderfs" [pid 6228] memfd_create("syzkaller", 0 [pid 6221] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... unlink resumed>) = 0 [pid 6228] <... memfd_create resumed>) = 3 [pid 6221] creat("./file0/file0", 0202 [pid 5071] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6226] <... write resumed>) = 4194304 [pid 6221] <... creat resumed>) = -1 ENOENT (No such file or directory) [ 166.632497][ T6221] overlayfs: failed to resolve './file0': -2 [pid 6228] <... mmap resumed>) = 0x7f7f7af80000 [pid 6226] munmap(0x7f7f7af80000, 4194304 [pid 6221] exit_group(0 [pid 6226] <... munmap resumed>) = 0 [pid 6221] <... exit_group resumed>) = ? [pid 6221] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6221, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6226] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 6226] <... openat resumed>) = 4 [pid 5072] <... restart_syscall resumed>) = 0 [pid 6226] ioctl(4, LOOP_SET_FD, 3 [pid 5072] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./94/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./94/binderfs") = 0 [pid 5072] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6227] 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"..., 4194304 [pid 6226] <... ioctl resumed>) = 0 [pid 6226] close(3) = 0 [pid 6226] mkdir("./file0", 0777) = 0 [ 166.660397][ T6223] REISERFS (device loop1): Using r5 hash to sort names [ 166.679196][ T6226] loop2: detected capacity change from 0 to 8192 [pid 6226] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6223] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./93/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./93/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./93/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 6223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [ 166.720813][ T6226] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 166.734129][ T6223] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 166.747303][ T6223] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 166.757755][ T6226] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 6228] 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"..., 4194304 [pid 6223] <... openat resumed>) = 3 [pid 5071] close(4 [pid 6223] chdir("./file0" [pid 5071] <... close resumed>) = 0 [pid 6223] <... chdir resumed>) = 0 [pid 5071] rmdir("./93/file0" [pid 6223] ioctl(4, LOOP_CLR_FD [pid 5071] <... rmdir resumed>) = 0 [pid 6223] <... ioctl resumed>) = 0 [pid 6223] close(4 [pid 5071] getdents64(3, [pid 6223] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6223] mkdir("./file1", 000 [pid 5071] close(3 [pid 6223] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 6223] mkdir("./bus", 000 [ 166.768065][ T6226] REISERFS (device loop2): using ordered data mode [ 166.775501][ T6226] reiserfs: using flush barriers [ 166.781662][ T6226] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 166.800462][ T6226] REISERFS (device loop2): checking transaction log (loop2) [ 166.809442][ T6226] REISERFS (device loop2): Using r5 hash to sort names [pid 5071] rmdir("./93" [pid 6223] <... mkdir resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 6223] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] mkdir("./94", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6227] <... write resumed>) = 4194304 [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6230 ./strace-static-x86_64: Process 6230 attached [pid 6227] munmap(0x7f7f7af80000, 4194304 [pid 6230] chdir("./94" [pid 6227] <... munmap resumed>) = 0 [pid 6226] <... mount resumed>) = 0 [pid 6230] <... chdir resumed>) = 0 [pid 6227] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6226] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6227] <... openat resumed>) = 4 [pid 6230] <... prctl resumed>) = 0 [pid 6227] ioctl(4, LOOP_SET_FD, 3 [pid 6226] <... openat resumed>) = 3 [ 166.827836][ T6226] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 166.835742][ T6223] overlayfs: upper fs needs to support d_type. [ 166.848870][ T6226] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] <... umount2 resumed>) = 0 [pid 6230] setpgid(0, 0 [pid 6227] <... ioctl resumed>) = 0 [pid 6226] chdir("./file0" [pid 6230] <... setpgid resumed>) = 0 [pid 6227] close(3 [pid 6226] <... chdir resumed>) = 0 [pid 6230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6227] <... close resumed>) = 0 [pid 6226] ioctl(4, LOOP_CLR_FD [pid 6230] <... openat resumed>) = 3 [pid 6227] mkdir("./file0", 0777 [pid 6226] <... ioctl resumed>) = 0 [pid 6230] write(3, "1000", 4 [pid 6228] <... write resumed>) = 4194304 [pid 6230] <... write resumed>) = 4 [pid 6227] <... mkdir resumed>) = 0 [pid 6226] close(4 [pid 6230] close(3 [pid 5072] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6230] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6230] symlink("/dev/binderfs", "./binderfs" [pid 5072] lstat("./94/file0", [pid 6230] <... symlink resumed>) = 0 [pid 6226] <... close resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6230] memfd_create("syzkaller", 0 [pid 6228] munmap(0x7f7f7af80000, 4194304 [pid 6227] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6226] mkdir("./file1", 000 [pid 5072] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6230] <... memfd_create resumed>) = 3 [pid 6226] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6228] <... munmap resumed>) = 0 [pid 6226] mkdir("./bus", 000 [pid 5072] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6230] <... mmap resumed>) = 0x7f7f7af80000 [pid 6228] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6226] <... mkdir resumed>) = 0 [ 166.878181][ T6227] loop5: detected capacity change from 0 to 8192 [ 166.878342][ T6223] overlayfs: upper fs does not support tmpfile. [pid 5072] <... openat resumed>) = 4 [pid 6228] <... openat resumed>) = 4 [pid 6226] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6228] ioctl(4, LOOP_SET_FD, 3 [pid 5072] fstat(4, [pid 6228] <... ioctl resumed>) = 0 [pid 6228] close(3) = 0 [ 166.918641][ T6223] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 166.933194][ T6227] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 166.934923][ T6228] loop0: detected capacity change from 0 to 8192 [ 166.947457][ T6227] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 166.953027][ T6226] overlayfs: upper fs needs to support d_type. [pid 6228] mkdir("./file0", 0777) = 0 [pid 6228] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./94/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./94" [ 166.963171][ T6223] overlayfs: failed to resolve './file0': -2 [ 166.972788][ T6226] overlayfs: upper fs does not support tmpfile. [ 166.985668][ T6226] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 166.988314][ T6227] REISERFS (device loop5): using ordered data mode [ 166.994643][ T6226] overlayfs: failed to resolve './file0': -2 [ 166.999787][ T6227] reiserfs: using flush barriers [pid 6230] 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"..., 4194304 [pid 5072] <... rmdir resumed>) = 0 [pid 6223] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] mkdir("./95", 0777 [pid 6223] creat("./file0/file0", 0202 [pid 5072] <... mkdir resumed>) = 0 [pid 6223] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6223] exit_group(0 [pid 5072] <... openat resumed>) = 3 [pid 6223] <... exit_group resumed>) = ? [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6223] +++ exited with 0 +++ [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6223, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6233 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 167.006129][ T6228] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 167.024039][ T6227] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 167.024714][ T6228] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 167.049931][ T6228] REISERFS (device loop0): using ordered data mode [ 167.057303][ T6228] reiserfs: using flush barriers [pid 5069] getdents64(3, ./strace-static-x86_64: Process 6233 attached 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6233] chdir("./95" [pid 5069] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6233] <... chdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] lstat("./95/binderfs", [pid 6233] <... prctl resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6233] setpgid(0, 0 [pid 5069] unlink("./95/binderfs" [pid 6233] <... setpgid resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 6233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6233] <... openat resumed>) = 3 [pid 6233] write(3, "1000", 4) = 4 [pid 6233] close(3) = 0 [pid 6233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6233] memfd_create("syzkaller", 0) = 3 [pid 6233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6226] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 167.064829][ T6228] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 167.082340][ T6228] REISERFS (device loop0): checking transaction log (loop0) [ 167.091866][ T6228] REISERFS (device loop0): Using r5 hash to sort names [ 167.099609][ T6228] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6226] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6230] <... write resumed>) = 4194304 [pid 6228] <... mount resumed>) = 0 [pid 6226] exit_group(0 [pid 6233] 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"..., 4194304 [ 167.113612][ T6228] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 167.120966][ T6227] REISERFS (device loop5): checking transaction log (loop5) [ 167.153401][ T6227] REISERFS (device loop5): Using r5 hash to sort names [pid 6230] munmap(0x7f7f7af80000, 4194304 [pid 6228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6226] <... exit_group resumed>) = ? [pid 6230] <... munmap resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6228] <... openat resumed>) = 3 [pid 5069] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6230] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6228] chdir("./file0" [pid 6226] +++ exited with 0 +++ [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6226, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 5070] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 6230] <... openat resumed>) = 4 [pid 6228] <... chdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./95/file0" [pid 6230] ioctl(4, LOOP_SET_FD, 3 [pid 6228] ioctl(4, LOOP_CLR_FD [pid 5070] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... rmdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5070] fstat(3, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] close(3 [pid 5070] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] rmdir("./95" [pid 6228] <... ioctl resumed>) = 0 [pid 5070] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 6228] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./96", 0777 [pid 6233] <... write resumed>) = 4194304 [pid 6230] <... ioctl resumed>) = 0 [pid 6228] <... close resumed>) = 0 [pid 6227] <... mount resumed>) = 0 [pid 5070] lstat("./94/binderfs", [pid 5069] <... mkdir resumed>) = 0 [pid 6233] munmap(0x7f7f7af80000, 4194304 [pid 6230] close(3 [pid 6227] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6233] <... munmap resumed>) = 0 [pid 6230] <... close resumed>) = 0 [pid 6227] <... openat resumed>) = 3 [pid 6233] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6230] mkdir("./file0", 0777 [pid 6228] mkdir("./file1", 000 [pid 6227] chdir("./file0" [pid 6233] <... openat resumed>) = 4 [pid 6230] <... mkdir resumed>) = 0 [pid 6227] <... chdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6233] ioctl(4, LOOP_SET_FD, 3 [pid 6230] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6228] <... mkdir resumed>) = 0 [pid 6227] ioctl(4, LOOP_CLR_FD [pid 5070] unlink("./94/binderfs" [pid 6228] mkdir("./bus", 000 [pid 6227] <... ioctl resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 6227] close(4 [pid 6233] <... ioctl resumed>) = 0 [pid 6228] <... mkdir resumed>) = 0 [pid 6227] <... close resumed>) = 0 [ 167.162162][ T6227] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 167.178983][ T6227] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 167.191258][ T6230] loop3: detected capacity change from 0 to 8192 [ 167.211986][ T6233] loop4: detected capacity change from 0 to 8192 [pid 5070] <... unlink resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6233] close(3 [pid 6228] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6233] <... close resumed>) = 0 [pid 6227] mkdir("./file1", 000) = 0 [pid 6227] mkdir("./bus", 000) = 0 [pid 6227] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6233] mkdir("./file0", 0777 [pid 5069] close(3 [pid 6233] <... mkdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [ 167.227910][ T6230] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 167.232076][ T6228] overlayfs: upper fs needs to support d_type. [ 167.245967][ T6227] overlayfs: upper fs needs to support d_type. [ 167.251036][ T6228] overlayfs: upper fs does not support tmpfile. [ 167.255115][ T6227] overlayfs: upper fs does not support tmpfile. [ 167.261907][ T6228] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6233] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6235 ./strace-static-x86_64: Process 6235 attached [pid 6235] chdir("./96") = 0 [pid 6235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6235] setpgid(0, 0) = 0 [pid 6235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6235] write(3, "1000", 4) = 4 [pid 6235] close(3) = 0 [pid 6235] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6235] memfd_create("syzkaller", 0) = 3 [pid 6235] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 167.273500][ T6230] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 167.275337][ T6228] overlayfs: failed to resolve './file0': -2 [ 167.303588][ T6227] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 167.311486][ T6233] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6227] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6227] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6227] exit_group(0) = ? [pid 6227] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6227, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./96/binderfs") = 0 [pid 6228] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6228] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6228] exit_group(0) = ? [ 167.331097][ T6227] overlayfs: failed to resolve './file0': -2 [ 167.334312][ T6230] REISERFS (device loop3): using ordered data mode [ 167.337759][ T6233] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 167.353863][ T6233] REISERFS (device loop4): using ordered data mode [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./94/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 6228] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6228, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 5068] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./94" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... rmdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] mkdir("./95", 0777 [pid 5068] fstat(3, [pid 5070] <... mkdir resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5068] lstat("./95/binderfs", [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] unlink("./95/binderfs" [pid 5070] close(3 [pid 5068] <... unlink resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6237 [ 167.394819][ T6233] reiserfs: using flush barriers [ 167.406338][ T6230] reiserfs: using flush barriers [pid 6235] 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"..., 4194304./strace-static-x86_64: Process 6237 attached [pid 6237] chdir("./95") = 0 [pid 6237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6237] setpgid(0, 0) = 0 [pid 6237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6237] write(3, "1000", 4) = 4 [pid 6237] close(3) = 0 [pid 6237] symlink("/dev/binderfs", "./binderfs") = 0 [ 167.469833][ T6233] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 167.490103][ T6230] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6237] memfd_create("syzkaller", 0) = 3 [pid 6237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6235] <... write resumed>) = 4194304 [pid 6235] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6235] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6235] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5073] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6235] <... ioctl resumed>) = 0 [pid 6235] close(3) = 0 [pid 6235] mkdir("./file0", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] lstat("./95/file0", [pid 5073] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... openat resumed>) = 4 [pid 5073] fstat(4, [pid 5068] <... openat resumed>) = 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(4, [pid 5073] getdents64(4, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, [pid 5068] getdents64(4, [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./96/file0" [pid 5068] getdents64(4, [pid 6235] <... mkdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] close(3) = 0 [pid 5068] rmdir("./95/file0" [pid 6235] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 5073] rmdir("./96" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] close(3 [pid 5073] mkdir("./97", 0777 [pid 5068] <... close resumed>) = 0 [ 167.514668][ T6233] REISERFS (device loop4): checking transaction log (loop4) [ 167.529469][ T6233] REISERFS (device loop4): Using r5 hash to sort names [ 167.543126][ T6235] loop1: detected capacity change from 0 to 8192 [ 167.550920][ T6233] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6237] 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"..., 4194304 [pid 5073] <... mkdir resumed>) = 0 [pid 5068] rmdir("./95" [pid 6233] <... mount resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] <... rmdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5068] mkdir("./96", 0777 [pid 6233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6233] <... openat resumed>) = 3 [pid 5073] close(3 [pid 5068] <... mkdir resumed>) = 0 [pid 6233] chdir("./file0" [pid 5073] <... close resumed>) = 0 [ 167.576388][ T6230] REISERFS (device loop3): checking transaction log (loop3) [ 167.580780][ T6233] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 167.584856][ T6235] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 167.609980][ T6230] REISERFS (device loop3): Using r5 hash to sort names [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6233] <... chdir resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... openat resumed>) = 3 [pid 6233] ioctl(4, LOOP_CLR_FD) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6233] close(4 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6239 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6233] <... close resumed>) = 0 [pid 5068] close(3 [pid 6233] mkdir("./file1", 000 [pid 5068] <... close resumed>) = 0 [pid 6233] <... mkdir resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6233] mkdir("./bus", 000) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6240 ./strace-static-x86_64: Process 6239 attached [pid 6239] chdir("./97") = 0 [pid 6239] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6239] setpgid(0, 0) = 0 [pid 6239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 6240 attached [pid 6240] chdir("./96" [pid 6239] write(3, "1000", 4) = 4 [pid 6239] close(3) = 0 [pid 6239] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6240] <... chdir resumed>) = 0 [pid 6240] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6240] setpgid(0, 0) = 0 [pid 6240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6233] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6239] memfd_create("syzkaller", 0 [pid 6230] <... mount resumed>) = 0 [pid 6240] <... openat resumed>) = 3 [pid 6239] <... memfd_create resumed>) = 3 [pid 6240] write(3, "1000", 4) = 4 [pid 6239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6240] close(3) = 0 [pid 6240] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6230] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6240] memfd_create("syzkaller", 0 [pid 6230] <... openat resumed>) = 3 [pid 6230] chdir("./file0") = 0 [pid 6240] <... memfd_create resumed>) = 3 [ 167.618759][ T6230] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 167.632570][ T6235] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 167.646615][ T6230] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 167.658282][ T6233] overlayfs: upper fs needs to support d_type. [ 167.658642][ T6235] REISERFS (device loop1): using ordered data mode [ 167.671705][ T6235] reiserfs: using flush barriers [pid 6230] ioctl(4, LOOP_CLR_FD [pid 6240] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6237] <... write resumed>) = 4194304 [pid 6230] <... ioctl resumed>) = 0 [pid 6240] <... mmap resumed>) = 0x7f7f7af80000 [pid 6237] munmap(0x7f7f7af80000, 4194304 [pid 6230] close(4 [pid 6237] <... munmap resumed>) = 0 [pid 6230] <... close resumed>) = 0 [pid 6230] mkdir("./file1", 000) = 0 [pid 6237] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6230] mkdir("./bus", 000 [pid 6237] <... openat resumed>) = 4 [pid 6230] <... mkdir resumed>) = 0 [pid 6237] ioctl(4, LOOP_SET_FD, 3 [ 167.680305][ T6235] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 167.681830][ T6233] overlayfs: upper fs does not support tmpfile. [ 167.703269][ T6233] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 167.712334][ T6233] overlayfs: failed to resolve './file0': -2 [ 167.723127][ T6237] loop2: detected capacity change from 0 to 8192 [pid 6230] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6237] <... ioctl resumed>) = 0 [pid 6233] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6237] close(3 [pid 6233] creat("./file0/file0", 0202 [pid 6237] <... close resumed>) = 0 [pid 6237] mkdir("./file0", 0777 [pid 6233] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6237] <... mkdir resumed>) = 0 [pid 6233] exit_group(0 [pid 6237] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6233] <... exit_group resumed>) = ? [pid 6233] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6233, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5072] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 167.731497][ T6235] REISERFS (device loop1): checking transaction log (loop1) [ 167.731510][ T6230] overlayfs: upper fs needs to support d_type. [ 167.731548][ T6230] overlayfs: upper fs does not support tmpfile. [ 167.753104][ T6235] REISERFS (device loop1): Using r5 hash to sort names [pid 5072] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6239] 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"..., 4194304 [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./95/binderfs") = 0 [pid 5072] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 167.789985][ T6237] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 167.794250][ T6235] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 167.807733][ T6237] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 167.818105][ T6230] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 167.859131][ T6230] overlayfs: failed to resolve './file0': -2 [ 167.869039][ T6237] REISERFS (device loop2): using ordered data mode [ 167.875673][ T6237] reiserfs: using flush barriers [ 167.881861][ T6237] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 167.899073][ T6237] REISERFS (device loop2): checking transaction log (loop2) [pid 6240] 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"..., 4194304 [pid 6235] <... mount resumed>) = 0 [pid 6230] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6235] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6230] creat("./file0/file0", 0202 [pid 6235] <... openat resumed>) = 3 [pid 6230] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6235] chdir("./file0" [pid 6230] exit_group(0 [pid 6235] <... chdir resumed>) = 0 [pid 6230] <... exit_group resumed>) = ? [pid 6235] ioctl(4, LOOP_CLR_FD [pid 6230] +++ exited with 0 +++ [pid 6235] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6235] close(4 [pid 5072] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6230, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6240] <... write resumed>) = 4194304 [pid 6235] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6240] munmap(0x7f7f7af80000, 4194304 [pid 6235] mkdir("./file1", 000 [pid 5072] lstat("./95/file0", [pid 6235] <... mkdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6239] <... write resumed>) = 4194304 [pid 6240] <... munmap resumed>) = 0 [pid 5072] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6240] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6239] munmap(0x7f7f7af80000, 4194304 [pid 6235] mkdir("./bus", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./94", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6240] <... openat resumed>) = 4 [pid 6235] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 167.907122][ T6235] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 167.914700][ T6237] REISERFS (device loop2): Using r5 hash to sort names [ 167.928341][ T6237] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 167.949243][ T6237] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6240] ioctl(4, LOOP_SET_FD, 3 [pid 6235] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "./94", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] fstat(4, [pid 5071] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(3, [pid 5072] getdents64(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6239] <... munmap resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(3, [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./94/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6239] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6239] <... openat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5071] lstat("./94/binderfs", [pid 6239] ioctl(4, LOOP_SET_FD, 3 [pid 5072] rmdir("./95/file0" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6240] <... ioctl resumed>) = 0 [pid 6239] <... ioctl resumed>) = 0 [pid 6237] <... mount resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] unlink("./94/binderfs" [pid 6240] close(3 [pid 5072] getdents64(3, [pid 5071] <... unlink resumed>) = 0 [pid 6240] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6240] mkdir("./file0", 0777 [pid 5072] close(3 [pid 6240] <... mkdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 6240] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] rmdir("./95" [pid 6239] close(3 [pid 6237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./96", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 6239] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6237] <... openat resumed>) = 3 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6243 [ 167.969394][ T6240] loop0: detected capacity change from 0 to 8192 [ 167.978285][ T6235] overlayfs: upper fs needs to support d_type. [ 167.985773][ T6239] loop5: detected capacity change from 0 to 8192 [ 167.986691][ T6235] overlayfs: upper fs does not support tmpfile. [ 168.000595][ T6235] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 168.009451][ T6235] overlayfs: failed to resolve './file0': -2 [pid 6239] mkdir("./file0", 0777 [pid 6237] chdir("./file0" [pid 6239] <... mkdir resumed>) = 0 [pid 6237] <... chdir resumed>) = 0 [pid 6239] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6237] ioctl(4, LOOP_CLR_FD) = 0 [pid 6237] close(4) = 0 [pid 6237] mkdir("./file1", 000) = 0 [pid 6237] mkdir("./bus", 000) = 0 [pid 6237] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on,"./strace-static-x86_64: Process 6243 attached [ 168.019756][ T6240] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.029125][ T6237] overlayfs: upper fs needs to support d_type. [ 168.033412][ T6240] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 168.048442][ T6240] REISERFS (device loop0): using ordered data mode [ 168.055384][ T6240] reiserfs: using flush barriers [pid 6243] chdir("./96") = 0 [pid 6235] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6235] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6235] exit_group(0) = ? [pid 6235] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6235, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 6243] setpgid(0, 0) = 0 [pid 5069] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6243] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6243] write(3, "1000", 4 [pid 5069] <... openat resumed>) = 3 [pid 6243] <... write resumed>) = 4 [pid 5069] fstat(3, [pid 6243] close(3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6243] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 6243] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6243] <... symlink resumed>) = 0 [ 168.062064][ T6240] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 168.064087][ T6239] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.078723][ T6240] REISERFS (device loop0): checking transaction log (loop0) [ 168.099633][ T6240] REISERFS (device loop0): Using r5 hash to sort names [ 168.106776][ T6237] overlayfs: upper fs does not support tmpfile. [pid 5069] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6243] memfd_create("syzkaller", 0 [pid 5069] lstat("./96/binderfs", [pid 6243] <... memfd_create resumed>) = 3 [pid 6243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6243] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] unlink("./96/binderfs") = 0 [pid 6237] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6237] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6237] exit_group(0) = ? [pid 6237] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6237, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5070] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6243] 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"..., 4194304 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./95/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./95/binderfs") = 0 [ 168.118725][ T6237] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 168.135411][ T6237] overlayfs: failed to resolve './file0': -2 [ 168.136256][ T6240] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./94/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./94/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./94/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [ 168.194239][ T6239] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 168.208687][ T6239] REISERFS (device loop5): using ordered data mode [ 168.216574][ T6239] reiserfs: using flush barriers [ 168.222927][ T6239] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6240] <... mount resumed>) = 0 [pid 5071] rmdir("./94/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6240] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] close(3 [pid 6240] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./94") = 0 [pid 6240] chdir("./file0" [pid 5071] mkdir("./95", 0777 [pid 6240] <... chdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6240] ioctl(4, LOOP_CLR_FD [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6240] <... ioctl resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6240] close(4 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6240] <... close resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6245 [pid 6240] mkdir("./file1", 000./strace-static-x86_64: Process 6245 attached ) = 0 [pid 6240] mkdir("./bus", 000 [pid 6245] chdir("./95" [pid 6240] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 6245] <... chdir resumed>) = 0 [pid 6240] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6245] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 168.241306][ T6240] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 168.251291][ T6239] REISERFS (device loop5): checking transaction log (loop5) [ 168.260439][ T6239] REISERFS (device loop5): Using r5 hash to sort names [ 168.272269][ T6239] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6245] setpgid(0, 0) = 0 [pid 6245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6245] write(3, "1000", 4) = 4 [pid 6245] close(3) = 0 [pid 6245] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6245] memfd_create("syzkaller", 0) = 3 [pid 6245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6243] <... write resumed>) = 4194304 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 6243] munmap(0x7f7f7af80000, 4194304 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [ 168.305642][ T6240] overlayfs: upper fs needs to support d_type. [ 168.312342][ T6240] overlayfs: upper fs does not support tmpfile. [ 168.334508][ T6240] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 168.346747][ T6239] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./96/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./96") = 0 [pid 5069] mkdir("./97", 0777 [pid 6243] <... munmap resumed>) = 0 [pid 6239] <... mount resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 6243] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6243] <... openat resumed>) = 4 [pid 6239] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 6243] ioctl(4, LOOP_SET_FD, 3 [pid 6239] chdir("./file0" [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 6243] <... ioctl resumed>) = 0 [pid 6240] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6239] <... chdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 6243] close(3 [pid 6240] creat("./file0/file0", 0202 [pid 6239] ioctl(4, LOOP_CLR_FD [pid 5070] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6243] <... close resumed>) = 0 [pid 6240] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6239] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6243] mkdir("./file0", 0777 [pid 6240] exit_group(0 [pid 6239] close(4 [pid 5070] lstat("./95/file0", [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6246 [pid 6243] <... mkdir resumed>) = 0 [pid 6240] <... exit_group resumed>) = ? [pid 6239] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6246 attached [pid 6245] 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"..., 4194304 [pid 6243] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6240] +++ exited with 0 +++ [pid 6239] mkdir("./file1", 000 [pid 5070] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6246] chdir("./97" [pid 6239] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6246] <... chdir resumed>) = 0 [pid 6239] mkdir("./bus", 000 [pid 5070] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6240, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6246] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6239] <... mkdir resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 6246] <... prctl resumed>) = 0 [ 168.363828][ T6240] overlayfs: failed to resolve './file0': -2 [ 168.377358][ T6243] loop4: detected capacity change from 0 to 8192 [pid 6239] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] fstat(4, [pid 5068] <... restart_syscall resumed>) = 0 [pid 6246] setpgid(0, 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6246] <... setpgid resumed>) = 0 [pid 5070] getdents64(4, [pid 6246] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6246] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6246] write(3, "1000", 4 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6246] <... write resumed>) = 4 [pid 5070] close(4 [pid 5068] <... openat resumed>) = 3 [pid 6246] close(3 [pid 5070] <... close resumed>) = 0 [pid 5068] fstat(3, [pid 6246] <... close resumed>) = 0 [pid 5070] rmdir("./95/file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6246] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 6246] <... symlink resumed>) = 0 [pid 5070] getdents64(3, [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6246] memfd_create("syzkaller", 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6246] <... memfd_create resumed>) = 3 [pid 5070] close(3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6246] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... close resumed>) = 0 [pid 5068] lstat("./96/binderfs", [pid 6246] <... mmap resumed>) = 0x7f7f7af80000 [ 168.416780][ T6239] overlayfs: upper fs needs to support d_type. [ 168.423002][ T6239] overlayfs: upper fs does not support tmpfile. [ 168.430199][ T6243] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] rmdir("./95" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6245] <... write resumed>) = 4194304 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] unlink("./96/binderfs" [pid 6245] munmap(0x7f7f7af80000, 4194304 [pid 5070] mkdir("./96", 0777 [pid 5068] <... unlink resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6245] <... munmap resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6245] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6245] <... openat resumed>) = 4 [pid 5070] close(3 [pid 6246] 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"..., 4194304 [pid 6245] ioctl(4, LOOP_SET_FD, 3 [pid 6239] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6248 ./strace-static-x86_64: Process 6248 attached [ 168.463245][ T6239] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 168.475886][ T6243] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 168.476661][ T6239] overlayfs: failed to resolve './file0': -2 [ 168.505431][ T6243] REISERFS (device loop4): using ordered data mode [pid 6248] chdir("./96") = 0 [pid 6248] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6248] setpgid(0, 0) = 0 [pid 6248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6248] write(3, "1000", 4) = 4 [pid 6248] close(3) = 0 [pid 6248] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6248] memfd_create("syzkaller", 0) = 3 [pid 6248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6239] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6239] exit_group(0) = ? [pid 6239] +++ exited with 0 +++ [pid 6245] <... ioctl resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6239, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5073] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./97/binderfs", [pid 6248] 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"..., 4194304 [pid 6245] close(3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6245] <... close resumed>) = 0 [pid 5073] unlink("./97/binderfs" [pid 6245] mkdir("./file0", 0777 [pid 5073] <... unlink resumed>) = 0 [pid 6245] <... mkdir resumed>) = 0 [pid 5073] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 168.523500][ T6245] loop3: detected capacity change from 0 to 8192 [pid 6245] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6248] <... write resumed>) = 4194304 [pid 6248] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6248] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 168.567914][ T6243] reiserfs: using flush barriers [ 168.573831][ T6245] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.606308][ T6248] loop2: detected capacity change from 0 to 8192 [pid 6248] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6246] <... write resumed>) = 4194304 [pid 6248] close(3 [pid 6246] munmap(0x7f7f7af80000, 4194304 [pid 6248] <... close resumed>) = 0 [pid 6248] mkdir("./file0", 0777 [pid 6246] <... munmap resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6248] <... mkdir resumed>) = 0 [pid 6246] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6246] <... openat resumed>) = 4 [pid 5068] lstat("./96/file0", [pid 6248] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6246] ioctl(4, LOOP_SET_FD, 3 [pid 5068] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6246] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 168.607334][ T6245] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 168.622619][ T6243] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 168.624037][ T6245] REISERFS (device loop3): using ordered data mode [ 168.649893][ T6246] loop1: detected capacity change from 0 to 8192 [pid 5068] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6246] close(3 [pid 5068] fstat(4, [pid 6246] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6246] mkdir("./file0", 0777 [pid 5068] getdents64(4, [pid 6246] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6246] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./96/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [ 168.658415][ T6248] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.672463][ T6245] reiserfs: using flush barriers [ 168.678181][ T6248] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 168.689404][ T6243] REISERFS (device loop4): checking transaction log (loop4) [ 168.690752][ T6245] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5068] close(3) = 0 [pid 5068] rmdir("./96") = 0 [pid 5068] mkdir("./97", 0777) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6252 [pid 5073] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 168.713632][ T6245] REISERFS (device loop3): checking transaction log (loop3) [ 168.724804][ T6248] REISERFS (device loop2): using ordered data mode [ 168.731328][ T6248] reiserfs: using flush barriers [ 168.737733][ T6248] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 168.749348][ T6245] REISERFS (device loop3): Using r5 hash to sort names [ 168.754183][ T6248] REISERFS (device loop2): checking transaction log (loop2) ./strace-static-x86_64: Process 6252 attached [pid 5073] lstat("./97/file0", [pid 6252] chdir("./97") = 0 [pid 6252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6252] setpgid(0, 0) = 0 [pid 6252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6252] write(3, "1000", 4) = 4 [pid 6252] close(3) = 0 [pid 6252] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6252] memfd_create("syzkaller", 0) = 3 [pid 6252] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6252] 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"..., 4194304 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./97/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [ 168.761061][ T6243] REISERFS (device loop4): Using r5 hash to sort names [ 168.776297][ T6246] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.790789][ T6248] REISERFS (device loop2): Using r5 hash to sort names [pid 5073] close(3) = 0 [pid 5073] rmdir("./97") = 0 [pid 5073] mkdir("./98", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 6252] <... write resumed>) = 4194304 [pid 6252] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6252] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6252] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6252] close(3) = 0 [pid 6252] mkdir("./file0", 0777) = 0 [ 168.813585][ T6248] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 168.842916][ T6252] loop0: detected capacity change from 0 to 8192 [ 168.853752][ T6243] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6252] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... close resumed>) = 0 [pid 6243] <... mount resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6254 ./strace-static-x86_64: Process 6254 attached [pid 6243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6254] chdir("./98") = 0 [pid 6254] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6254] setpgid(0, 0) = 0 [ 168.860843][ T6245] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 168.866791][ T6243] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 168.880828][ T6246] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 168.888519][ T6248] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6248] <... mount resumed>) = 0 [pid 6243] chdir("./file0" [pid 6254] <... openat resumed>) = 3 [pid 6254] write(3, "1000", 4) = 4 [pid 6254] close(3) = 0 [pid 6254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6254] memfd_create("syzkaller", 0 [pid 6248] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6243] <... chdir resumed>) = 0 [pid 6254] <... memfd_create resumed>) = 3 [pid 6254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6248] <... openat resumed>) = 3 [pid 6243] ioctl(4, LOOP_CLR_FD [pid 6248] chdir("./file0" [pid 6243] <... ioctl resumed>) = 0 [pid 6248] <... chdir resumed>) = 0 [ 168.907142][ T6252] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 168.920372][ T6252] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 168.929726][ T6252] REISERFS (device loop0): using ordered data mode [ 168.936510][ T6252] reiserfs: using flush barriers [ 168.942700][ T6252] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6243] close(4 [pid 6248] ioctl(4, LOOP_CLR_FD [pid 6243] <... close resumed>) = 0 [pid 6248] <... ioctl resumed>) = 0 [pid 6243] mkdir("./file1", 000 [pid 6248] close(4 [pid 6243] <... mkdir resumed>) = 0 [pid 6248] <... close resumed>) = 0 [pid 6243] mkdir("./bus", 000 [pid 6248] mkdir("./file1", 000 [pid 6243] <... mkdir resumed>) = 0 [pid 6248] <... mkdir resumed>) = 0 [pid 6243] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6248] mkdir("./bus", 000) = 0 [pid 6248] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6245] <... mount resumed>) = 0 [pid 6245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 168.964211][ T6245] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 168.974353][ T6243] overlayfs: upper fs needs to support d_type. [ 168.980560][ T6243] overlayfs: upper fs does not support tmpfile. [ 168.988359][ T6246] REISERFS (device loop1): using ordered data mode [ 168.995786][ T6248] overlayfs: upper fs needs to support d_type. [ 168.995946][ T6246] reiserfs: using flush barriers [ 169.002370][ T6248] overlayfs: upper fs does not support tmpfile. [pid 6245] chdir("./file0") = 0 [pid 6245] ioctl(4, LOOP_CLR_FD) = 0 [pid 6245] close(4) = 0 [pid 6245] mkdir("./file1", 000) = 0 [pid 6245] mkdir("./bus", 000) = 0 [ 169.008679][ T6246] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 169.029923][ T6252] REISERFS (device loop0): checking transaction log (loop0) [ 169.030851][ T6246] REISERFS (device loop1): checking transaction log (loop1) [ 169.046999][ T6246] REISERFS (device loop1): Using r5 hash to sort names [ 169.054214][ T6246] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6245] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6246] <... mount resumed>) = 0 [pid 6246] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6246] chdir("./file0") = 0 [pid 6246] ioctl(4, LOOP_CLR_FD) = 0 [pid 6248] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 169.062635][ T6245] overlayfs: upper fs needs to support d_type. [ 169.067017][ T6246] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 169.084842][ T6243] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 169.085367][ T6248] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 169.094844][ T6245] overlayfs: upper fs does not support tmpfile. [ 169.100661][ T6248] overlayfs: failed to resolve './file0': -2 [pid 6246] close(4 [pid 6248] creat("./file0/file0", 0202 [pid 6246] <... close resumed>) = 0 [pid 6254] 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"..., 4194304 [pid 6248] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6246] mkdir("./file1", 000 [pid 6248] exit_group(0) = ? [pid 6246] <... mkdir resumed>) = 0 [pid 6252] <... mount resumed>) = 0 [pid 6248] +++ exited with 0 +++ [pid 6246] mkdir("./bus", 000 [pid 6252] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6246] <... mkdir resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6248, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [ 169.115778][ T6252] REISERFS (device loop0): Using r5 hash to sort names [ 169.122985][ T6252] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 169.138179][ T6252] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 169.144333][ T6243] overlayfs: failed to resolve './file0': -2 [ 169.150426][ T6245] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6252] <... openat resumed>) = 3 [pid 6246] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6245] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6252] chdir("./file0" [pid 5070] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./96/binderfs", [pid 6252] <... chdir resumed>) = 0 [pid 6245] creat("./file0/file0", 0202 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./96/binderfs") = 0 [pid 5070] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6252] ioctl(4, LOOP_CLR_FD [pid 6245] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6252] <... ioctl resumed>) = 0 [pid 6245] exit_group(0 [pid 6252] close(4 [pid 6245] <... exit_group resumed>) = ? [pid 6252] <... close resumed>) = 0 [pid 6243] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6243] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6243] exit_group(0 [pid 6245] +++ exited with 0 +++ [pid 6243] <... exit_group resumed>) = ? [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6245, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6252] mkdir("./file1", 000 [pid 6243] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6243, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 6252] <... mkdir resumed>) = 0 [pid 5072] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6252] mkdir("./bus", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6252] <... mkdir resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 6252] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 169.164819][ T6245] overlayfs: failed to resolve './file0': -2 [ 169.177489][ T6246] overlayfs: upper fs needs to support d_type. [ 169.187330][ T6246] overlayfs: upper fs does not support tmpfile. [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./96/binderfs") = 0 [pid 5072] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6254] <... write resumed>) = 4194304 [pid 5071] umount2("./95", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./95", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6254] munmap(0x7f7f7af80000, 4194304 [pid 5071] umount2("./95/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6254] <... munmap resumed>) = 0 [pid 6254] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6254] <... openat resumed>) = 4 [ 169.218189][ T6252] overlayfs: upper fs needs to support d_type. [ 169.229687][ T6252] overlayfs: upper fs does not support tmpfile. [ 169.238617][ T6246] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 169.255323][ T6252] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5071] lstat("./95/binderfs", [pid 6254] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./95/binderfs") = 0 [pid 5071] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6254] <... ioctl resumed>) = 0 [pid 6254] close(3) = 0 [pid 6254] mkdir("./file0", 0777 [pid 6252] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6254] <... mkdir resumed>) = 0 [pid 6254] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6252] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6252] exit_group(0) = ? [pid 6252] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6252, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [ 169.264521][ T6254] loop5: detected capacity change from 0 to 8192 [ 169.284341][ T6252] overlayfs: failed to resolve './file0': -2 [ 169.291810][ T6246] overlayfs: failed to resolve './file0': -2 [pid 6246] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6246] creat("./file0/file0", 0202 [pid 5070] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5068] <... openat resumed>) = 3 [pid 6246] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] fstat(3, [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 6246] exit_group(0 [pid 5070] rmdir("./96/file0" [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6246] <... exit_group resumed>) = ? [pid 5068] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 6246] +++ exited with 0 +++ [pid 5070] rmdir("./96" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6246, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=23 /* 0.23 s */} --- [pid 5068] lstat("./97/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./97/binderfs" [pid 5069] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... unlink resumed>) = 0 [pid 5070] mkdir("./97", 0777 [pid 5069] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./97/binderfs", [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./97/binderfs") = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6256 [pid 5069] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 169.327137][ T6254] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] lstat("./96/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 6256 attached [pid 5072] close(4 [pid 6256] chdir("./97" [pid 5072] <... close resumed>) = 0 [pid 6256] <... chdir resumed>) = 0 [pid 5072] rmdir("./96/file0" [pid 6256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... rmdir resumed>) = 0 [pid 6256] <... prctl resumed>) = 0 [pid 5072] getdents64(3, [pid 6256] setpgid(0, 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6256] <... setpgid resumed>) = 0 [pid 5072] close(3 [pid 6256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... close resumed>) = 0 [pid 6256] <... openat resumed>) = 3 [pid 5072] rmdir("./96" [pid 6256] write(3, "1000", 4 [pid 5072] <... rmdir resumed>) = 0 [pid 6256] <... write resumed>) = 4 [pid 5072] mkdir("./97", 0777 [pid 6256] close(3 [pid 5072] <... mkdir resumed>) = 0 [pid 6256] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6256] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... openat resumed>) = 3 [pid 6256] <... symlink resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6256] memfd_create("syzkaller", 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6256] <... memfd_create resumed>) = 3 [pid 5072] close(3 [pid 6256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... close resumed>) = 0 [pid 6256] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./95/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./95/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./95/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./95/file0" [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6257 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./95") = 0 [pid 5071] mkdir("./96", 0777./strace-static-x86_64: Process 6257 attached ) = 0 [pid 6257] chdir("./97" [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6257] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6257] <... prctl resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6257] setpgid(0, 0 [pid 5071] close(3 [pid 6257] <... setpgid resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 6257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6257] <... openat resumed>) = 3 [pid 6257] write(3, "1000", 4 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6258 [pid 6257] <... write resumed>) = 4 [pid 6257] close(3) = 0 [pid 6257] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6257] memfd_create("syzkaller", 0) = 3 [pid 6257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 169.404850][ T6254] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 169.424018][ T6254] REISERFS (device loop5): using ordered data mode ./strace-static-x86_64: Process 6258 attached [pid 6258] chdir("./96") = 0 [pid 6258] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6258] setpgid(0, 0) = 0 [pid 6258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6258] write(3, "1000", 4) = 4 [pid 6258] close(3) = 0 [pid 6258] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6258] memfd_create("syzkaller", 0) = 3 [pid 6258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6257] 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"..., 4194304 [pid 5068] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 169.473398][ T6254] reiserfs: using flush barriers [ 169.479583][ T6254] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./97/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./97") = 0 [pid 5068] mkdir("./98", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6259 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./97/file0", ./strace-static-x86_64: Process 6259 attached [pid 6259] chdir("./98") = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6259] <... prctl resumed>) = 0 [pid 6259] setpgid(0, 0) = 0 [pid 6259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6259] write(3, "1000", 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6259] <... write resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6259] close(3) = 0 [pid 5069] <... openat resumed>) = 4 [ 169.554768][ T6254] REISERFS (device loop5): checking transaction log (loop5) [pid 6259] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6256] 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"..., 4194304 [pid 5069] fstat(4, [pid 6259] memfd_create("syzkaller", 0) = 3 [pid 6259] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./97/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./97") = 0 [pid 5069] mkdir("./98", 0777) = 0 [pid 6258] 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"..., 4194304 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6260 [pid 6257] <... write resumed>) = 4194304 ./strace-static-x86_64: Process 6260 attached [pid 6257] munmap(0x7f7f7af80000, 4194304) = 0 [ 169.598647][ T6254] REISERFS (device loop5): Using r5 hash to sort names [ 169.634592][ T6254] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6257] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6260] chdir("./98" [pid 6257] <... openat resumed>) = 4 [pid 6257] ioctl(4, LOOP_SET_FD, 3 [pid 6260] <... chdir resumed>) = 0 [pid 6260] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6260] setpgid(0, 0) = 0 [pid 6260] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6260] write(3, "1000", 4) = 4 [pid 6260] close(3 [pid 6259] 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"..., 4194304 [pid 6260] <... close resumed>) = 0 [pid 6256] <... write resumed>) = 4194304 [pid 6260] symlink("/dev/binderfs", "./binderfs" [pid 6257] <... ioctl resumed>) = 0 [pid 6257] close(3) = 0 [pid 6257] mkdir("./file0", 0777 [pid 6260] <... symlink resumed>) = 0 [pid 6260] memfd_create("syzkaller", 0) = 3 [pid 6257] <... mkdir resumed>) = 0 [pid 6257] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6260] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 169.681536][ T6257] loop4: detected capacity change from 0 to 8192 [ 169.699911][ T6254] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6256] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6256] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6256] ioctl(4, LOOP_SET_FD, 3 [pid 6254] <... mount resumed>) = 0 [pid 6254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6254] chdir("./file0") = 0 [pid 6254] ioctl(4, LOOP_CLR_FD) = 0 [pid 6256] <... ioctl resumed>) = 0 [pid 6254] close(4) = 0 [pid 6254] mkdir("./file1", 000) = 0 [pid 6254] mkdir("./bus", 000) = 0 [pid 6254] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6256] close(3) = 0 [pid 6256] mkdir("./file0", 0777) = 0 [pid 6256] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 169.720860][ T6257] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 169.739961][ T6256] loop2: detected capacity change from 0 to 8192 [ 169.759587][ T6257] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 169.764382][ T6254] overlayfs: upper fs needs to support d_type. [pid 6260] 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"..., 4194304 [pid 6258] <... write resumed>) = 4194304 [pid 6260] <... write resumed>) = 4194304 [pid 6260] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6260] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6260] ioctl(4, LOOP_SET_FD, 3 [pid 6258] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6258] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6260] <... ioctl resumed>) = 0 [pid 6260] close(3 [pid 6258] <... openat resumed>) = 4 [pid 6260] <... close resumed>) = 0 [pid 6260] mkdir("./file0", 0777 [pid 6258] ioctl(4, LOOP_SET_FD, 3 [pid 6260] <... mkdir resumed>) = 0 [ 169.822428][ T6256] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 169.837510][ T6260] loop1: detected capacity change from 0 to 8192 [ 169.843398][ T6257] REISERFS (device loop4): using ordered data mode [ 169.844272][ T6254] overlayfs: upper fs does not support tmpfile. [ 169.851577][ T6257] reiserfs: using flush barriers [pid 6260] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6259] <... write resumed>) = 4194304 [pid 6259] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6259] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 169.864886][ T6256] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 169.865355][ T6258] loop3: detected capacity change from 0 to 8192 [ 169.877464][ T6259] loop0: detected capacity change from 0 to 8192 [ 169.881466][ T6260] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 169.887211][ T6257] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6259] ioctl(4, LOOP_SET_FD, 3 [pid 6258] <... ioctl resumed>) = 0 [pid 6258] close(3 [pid 6259] <... ioctl resumed>) = 0 [pid 6258] <... close resumed>) = 0 [pid 6259] close(3 [pid 6258] mkdir("./file0", 0777 [pid 6254] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6259] <... close resumed>) = 0 [pid 6258] <... mkdir resumed>) = 0 [pid 6254] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 169.900620][ T6260] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 169.917050][ T6254] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 169.926216][ T6256] REISERFS (device loop2): using ordered data mode [ 169.933701][ T6254] overlayfs: failed to resolve './file0': -2 [ 169.939601][ T6260] REISERFS (device loop1): using ordered data mode [ 169.945361][ T6257] REISERFS (device loop4): checking transaction log (loop4) [ 169.952104][ T6256] reiserfs: using flush barriers [ 169.958783][ T6260] reiserfs: using flush barriers [pid 6259] mkdir("./file0", 0777 [pid 6258] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6254] exit_group(0 [pid 6259] <... mkdir resumed>) = 0 [ 169.971322][ T6256] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 169.971951][ T6257] REISERFS (device loop4): Using r5 hash to sort names [ 169.993124][ T6260] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 169.995252][ T6257] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6259] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6254] <... exit_group resumed>) = ? [pid 6257] <... mount resumed>) = 0 [pid 6254] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6254, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 170.011761][ T6258] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 170.023508][ T6257] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 170.038882][ T6259] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 170.046067][ T6256] REISERFS (device loop2): checking transaction log (loop2) [ 170.066381][ T6260] REISERFS (device loop1): checking transaction log (loop1) [pid 5073] lstat("./98/binderfs", [pid 6257] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6257] chdir("./file0" [pid 5073] unlink("./98/binderfs" [pid 6257] <... chdir resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [ 170.073920][ T6258] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 170.083154][ T6258] REISERFS (device loop3): using ordered data mode [ 170.083354][ T6256] REISERFS (device loop2): Using r5 hash to sort names [ 170.089701][ T6258] reiserfs: using flush barriers [ 170.102875][ T6259] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 6257] ioctl(4, LOOP_CLR_FD [pid 5073] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6257] <... ioctl resumed>) = 0 [pid 6257] close(4) = 0 [pid 6257] mkdir("./file1", 000) = 0 [pid 6257] mkdir("./bus", 000) = 0 [ 170.103413][ T6258] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 170.112108][ T6259] REISERFS (device loop0): using ordered data mode [ 170.128105][ T6260] REISERFS (device loop1): Using r5 hash to sort names [ 170.135001][ T6259] reiserfs: using flush barriers [ 170.147866][ T6259] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 170.166317][ T6257] overlayfs: upper fs needs to support d_type. [ 170.172542][ T6257] overlayfs: upper fs does not support tmpfile. [ 170.178352][ T6256] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 170.192484][ T6259] REISERFS (device loop0): checking transaction log (loop0) [ 170.200147][ T6256] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 170.209625][ T6260] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6257] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6256] <... mount resumed>) = 0 [ 170.224544][ T6257] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 170.231559][ T6259] REISERFS (device loop0): Using r5 hash to sort names [ 170.239989][ T6257] overlayfs: failed to resolve './file0': -2 [ 170.246870][ T6258] REISERFS (device loop3): checking transaction log (loop3) [ 170.254566][ T6260] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6256] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6257] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6256] chdir("./file0") = 0 [pid 6257] creat("./file0/file0", 0202 [pid 6256] ioctl(4, LOOP_CLR_FD [pid 6257] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6257] exit_group(0 [pid 6256] <... ioctl resumed>) = 0 [pid 6257] <... exit_group resumed>) = ? [pid 6256] close(4) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./98/file0", [pid 6256] mkdir("./file1", 000 [pid 6257] +++ exited with 0 +++ [pid 6256] <... mkdir resumed>) = 0 [pid 6256] mkdir("./bus", 000 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6257, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6256] <... mkdir resumed>) = 0 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 6256] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... restart_syscall resumed>) = 0 [pid 5072] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] lstat("./97/binderfs", [pid 6260] <... mount resumed>) = 0 [pid 5073] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6260] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] unlink("./97/binderfs" [pid 6260] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... unlink resumed>) = 0 [pid 6260] chdir("./file0" [pid 5073] <... openat resumed>) = 4 [pid 5072] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6260] <... chdir resumed>) = 0 [pid 5073] fstat(4, [pid 6260] ioctl(4, LOOP_CLR_FD [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6260] <... ioctl resumed>) = 0 [pid 5073] getdents64(4, [pid 6260] close(4 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6260] <... close resumed>) = 0 [pid 5073] getdents64(4, [pid 6260] mkdir("./file1", 000 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6260] <... mkdir resumed>) = 0 [ 170.264243][ T6259] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 170.279263][ T6258] REISERFS (device loop3): Using r5 hash to sort names [ 170.298141][ T6258] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 170.312680][ T6256] overlayfs: upper fs needs to support d_type. [pid 5073] close(4 [pid 6260] mkdir("./bus", 000 [pid 5073] <... close resumed>) = 0 [pid 6260] <... mkdir resumed>) = 0 [pid 5073] rmdir("./98/file0" [pid 6260] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 6259] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6259] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] close(3 [pid 6259] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 6259] chdir("./file0" [ 170.319669][ T6256] overlayfs: upper fs does not support tmpfile. [ 170.334691][ T6259] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 170.335756][ T6260] overlayfs: upper fs needs to support d_type. [ 170.346757][ T6256] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 170.358386][ T6258] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] rmdir("./98" [pid 6259] <... chdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./99", 0777 [pid 6259] ioctl(4, LOOP_CLR_FD [pid 5073] <... mkdir resumed>) = 0 [pid 6258] <... mount resumed>) = 0 [pid 6259] <... ioctl resumed>) = 0 [pid 6256] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 6259] close(4 [pid 6258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6256] creat("./file0/file0", 0202 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6266 [pid 6259] <... close resumed>) = 0 [pid 6258] <... openat resumed>) = 3 [pid 6256] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6259] mkdir("./file1", 000 [pid 6258] chdir("./file0" [pid 6256] exit_group(0 [pid 6259] <... mkdir resumed>) = 0 [pid 6258] <... chdir resumed>) = 0 [pid 6256] <... exit_group resumed>) = ? [pid 6259] mkdir("./bus", 000 [pid 6258] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 6266 attached [pid 6256] +++ exited with 0 +++ [pid 6259] <... mkdir resumed>) = 0 [pid 6266] chdir("./99" [pid 6259] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6258] <... ioctl resumed>) = 0 [pid 6266] <... chdir resumed>) = 0 [pid 6258] close(4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6256, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 6266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 6266] <... prctl resumed>) = 0 [pid 5070] <... restart_syscall resumed>) = 0 [pid 6266] setpgid(0, 0) = 0 [pid 6266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6266] <... openat resumed>) = 3 [pid 6258] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6266] write(3, "1000", 4 [pid 6258] mkdir("./file1", 000 [pid 5070] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6266] <... write resumed>) = 4 [pid 6258] <... mkdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 6266] close(3 [pid 6258] mkdir("./bus", 000 [ 170.384491][ T6256] overlayfs: failed to resolve './file0': -2 [ 170.391707][ T6260] overlayfs: upper fs does not support tmpfile. [ 170.401221][ T6260] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 170.421558][ T6259] overlayfs: upper fs needs to support d_type. [pid 5070] fstat(3, [pid 6266] <... close resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6266] symlink("/dev/binderfs", "./binderfs" [pid 5070] getdents64(3, [pid 6266] <... symlink resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6266] memfd_create("syzkaller", 0 [pid 5070] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6266] <... memfd_create resumed>) = 3 [pid 6258] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6266] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] lstat("./97/binderfs", [pid 6266] <... mmap resumed>) = 0x7f7f7af80000 [pid 6258] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./97/binderfs" [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5070] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./97/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./97") = 0 [pid 5072] mkdir("./98", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [ 170.434461][ T6259] overlayfs: upper fs does not support tmpfile. [ 170.444293][ T6259] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 170.452674][ T6259] overlayfs: failed to resolve './file0': -2 [ 170.460562][ T6258] overlayfs: upper fs needs to support d_type. [ 170.468216][ T6260] overlayfs: failed to resolve './file0': -2 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6267 [pid 6260] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6266] 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"..., 4194304 [pid 6260] creat("./file0/file0", 0202./strace-static-x86_64: Process 6267 attached ) = -1 ENOENT (No such file or directory) [pid 6267] chdir("./98" [pid 6260] exit_group(0 [pid 6267] <... chdir resumed>) = 0 [pid 6260] <... exit_group resumed>) = ? [pid 6267] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6267] setpgid(0, 0) = 0 [pid 6267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6267] write(3, "1000", 4) = 4 [pid 6267] close(3) = 0 [pid 6267] symlink("/dev/binderfs", "./binderfs" [pid 6260] +++ exited with 0 +++ [pid 6267] <... symlink resumed>) = 0 [pid 6267] memfd_create("syzkaller", 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6260, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6267] <... memfd_create resumed>) = 3 [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 6267] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./98/binderfs") = 0 [pid 5069] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [ 170.497194][ T6258] overlayfs: upper fs does not support tmpfile. [ 170.517805][ T6258] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6259] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6259] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6259] exit_group(0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6259] <... exit_group resumed>) = ? [pid 6258] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] lstat("./97/file0", [pid 6259] +++ exited with 0 +++ [pid 6258] creat("./file0/file0", 0202 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6258] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6259, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6258] exit_group(0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6258] <... exit_group resumed>) = ? [pid 5070] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6258] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6258, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [ 170.571947][ T6258] overlayfs: failed to resolve './file0': -2 [pid 5070] <... openat resumed>) = 4 [pid 5068] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5070] fstat(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... restart_syscall resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, [pid 5068] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] fstat(3, [pid 5071] umount2("./96", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(4, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 5071] openat(AT_FDCWD, "./96", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] close(4 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... close resumed>) = 0 [pid 5068] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6266] <... write resumed>) = 4194304 [pid 5071] fstat(3, [pid 5070] rmdir("./97/file0" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6266] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] lstat("./98/binderfs", [pid 6266] <... munmap resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6266] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 5068] unlink("./98/binderfs" [pid 6266] <... openat resumed>) = 4 [pid 5071] umount2("./96/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 6266] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(3 [pid 5068] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./96/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./96/binderfs") = 0 [pid 5071] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6267] 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"..., 4194304 [pid 6266] <... ioctl resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6266] close(3 [pid 5070] rmdir("./97" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6266] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] lstat("./98/file0", [pid 6266] mkdir("./file0", 0777 [pid 5070] mkdir("./98", 0777 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6266] <... mkdir resumed>) = 0 [pid 6266] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... mkdir resumed>) = 0 [pid 5069] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] <... openat resumed>) = 4 [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6269 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./98/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 ./strace-static-x86_64: Process 6269 attached [pid 5069] rmdir("./98") = 0 [pid 5069] mkdir("./99", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [ 170.659848][ T6266] loop5: detected capacity change from 0 to 8192 [ 170.695733][ T6266] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6269] chdir("./98" [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6270 [pid 5071] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./96/file0", [pid 6269] <... chdir resumed>) = 0 [pid 6267] <... write resumed>) = 4194304 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6269] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6267] munmap(0x7f7f7af80000, 4194304 [pid 6269] <... prctl resumed>) = 0 [pid 6269] setpgid(0, 0 [pid 5071] umount2("./96/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6269] <... setpgid resumed>) = 0 [pid 6267] <... munmap resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 6270 attached [pid 6269] write(3, "1000", 4 [pid 6270] chdir("./99" [pid 6269] <... write resumed>) = 4 [pid 6270] <... chdir resumed>) = 0 [pid 6269] close(3 [pid 6270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6269] <... close resumed>) = 0 [pid 6267] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] openat(AT_FDCWD, "./96/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6270] <... prctl resumed>) = 0 [pid 6269] symlink("/dev/binderfs", "./binderfs" [pid 6267] <... openat resumed>) = 4 [pid 6269] <... symlink resumed>) = 0 [ 170.760675][ T6266] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 170.771194][ T6266] REISERFS (device loop5): using ordered data mode [ 170.779043][ T6266] reiserfs: using flush barriers [ 170.786172][ T6266] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 170.802827][ T6267] loop4: detected capacity change from 0 to 8192 [pid 6267] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... openat resumed>) = 4 [pid 5068] <... umount2 resumed>) = 0 [pid 6270] setpgid(0, 0 [pid 6269] memfd_create("syzkaller", 0 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, [pid 6267] <... ioctl resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6267] close(3 [pid 5071] getdents64(4, [pid 6267] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./98/file0", [pid 6267] mkdir("./file0", 0777 [pid 5071] close(4 [pid 6267] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6267] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] rmdir("./96/file0" [pid 5068] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(3, [pid 5068] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 4 [pid 5071] close(3 [pid 5068] fstat(4, [pid 5071] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] rmdir("./96" [pid 5068] getdents64(4, [pid 6270] <... setpgid resumed>) = 0 [pid 6269] <... memfd_create resumed>) = 3 [pid 5071] <... rmdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] mkdir("./97", 0777 [pid 5068] getdents64(4, [pid 5071] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5068] close(4 [pid 5071] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5068] rmdir("./98/file0" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5068] getdents64(3, [pid 6270] <... openat resumed>) = 3 [pid 6269] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... close resumed>) = 0 [pid 6270] write(3, "1000", 4 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6270] <... write resumed>) = 4 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6272 [pid 6270] close(3) = 0 [pid 5068] close(3 [pid 6270] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... close resumed>) = 0 ./strace-static-x86_64: Process 6272 attached [pid 6270] <... symlink resumed>) = 0 [ 170.804325][ T6266] REISERFS (device loop5): checking transaction log (loop5) [ 170.823880][ T6267] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 170.834177][ T6266] REISERFS (device loop5): Using r5 hash to sort names [ 170.847546][ T6266] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5068] rmdir("./98" [pid 6272] chdir("./97") = 0 [pid 6270] memfd_create("syzkaller", 0 [pid 6269] 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"..., 4194304 [pid 5068] <... rmdir resumed>) = 0 [pid 6272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6270] <... memfd_create resumed>) = 3 [pid 6266] <... mount resumed>) = 0 [pid 5068] mkdir("./99", 0777 [pid 6272] <... prctl resumed>) = 0 [pid 6270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... mkdir resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6272] setpgid(0, 0 [pid 6270] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] <... openat resumed>) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 6272] <... setpgid resumed>) = 0 [pid 6266] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 6272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6266] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6272] write(3, "1000", 4 [pid 6266] chdir("./file0" [pid 6272] <... write resumed>) = 4 [pid 6272] close(3) = 0 [pid 6272] symlink("/dev/binderfs", "./binderfs" [pid 6266] <... chdir resumed>) = 0 [pid 6272] <... symlink resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6273 [pid 6272] memfd_create("syzkaller", 0 [pid 6266] ioctl(4, LOOP_CLR_FD [pid 6272] <... memfd_create resumed>) = 3 [ 170.861687][ T6267] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 170.870027][ T6266] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 170.871796][ T6267] REISERFS (device loop4): using ordered data mode [pid 6272] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6266] <... ioctl resumed>) = 0 [pid 6272] <... mmap resumed>) = 0x7f7f7af80000 [pid 6269] <... write resumed>) = 4194304 [pid 6266] close(4 [pid 6269] munmap(0x7f7f7af80000, 4194304 [pid 6266] <... close resumed>) = 0 ./strace-static-x86_64: Process 6273 attached [pid 6273] chdir("./99" [pid 6269] <... munmap resumed>) = 0 [pid 6266] mkdir("./file1", 000 [pid 6269] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6266] <... mkdir resumed>) = 0 [pid 6269] <... openat resumed>) = 4 [pid 6266] mkdir("./bus", 000 [pid 6269] ioctl(4, LOOP_SET_FD, 3 [pid 6273] <... chdir resumed>) = 0 [pid 6266] <... mkdir resumed>) = 0 [pid 6273] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6273] setpgid(0, 0) = 0 [pid 6273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6273] write(3, "1000", 4) = 4 [pid 6273] close(3) = 0 [pid 6273] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6273] memfd_create("syzkaller", 0) = 3 [pid 6273] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6266] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6269] <... ioctl resumed>) = 0 [ 170.922270][ T6267] reiserfs: using flush barriers [ 170.931632][ T6269] loop2: detected capacity change from 0 to 8192 [ 170.939587][ T6267] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 170.958562][ T6266] overlayfs: upper fs needs to support d_type. [ 170.965293][ T6266] overlayfs: upper fs does not support tmpfile. [pid 6269] close(3) = 0 [pid 6269] mkdir("./file0", 0777) = 0 [pid 6269] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6270] 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"..., 4194304 [pid 6266] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6266] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6266] exit_group(0) = ? [pid 6266] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6266, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./99/binderfs") = 0 [pid 5073] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 170.973626][ T6266] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 170.984907][ T6266] overlayfs: failed to resolve './file0': -2 [ 170.999072][ T6269] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 171.009449][ T6267] REISERFS (device loop4): checking transaction log (loop4) [pid 6272] 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"..., 4194304 [pid 6273] 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"..., 4194304 [pid 6272] <... write resumed>) = 4194304 [ 171.033124][ T6269] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 171.045114][ T6267] REISERFS (device loop4): Using r5 hash to sort names [ 171.052384][ T6267] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 171.066154][ T6269] REISERFS (device loop2): using ordered data mode [ 171.072676][ T6269] reiserfs: using flush barriers [pid 6272] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6272] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6267] <... mount resumed>) = 0 [pid 6272] ioctl(4, LOOP_SET_FD, 3 [pid 6267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6272] <... ioctl resumed>) = 0 [pid 6267] chdir("./file0" [pid 6272] close(3 [pid 6267] <... chdir resumed>) = 0 [pid 6272] <... close resumed>) = 0 [pid 6267] ioctl(4, LOOP_CLR_FD [pid 6272] mkdir("./file0", 0777 [pid 6267] <... ioctl resumed>) = 0 [pid 6272] <... mkdir resumed>) = 0 [pid 6267] close(4 [pid 6272] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6267] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 6267] mkdir("./file1", 000 [pid 5073] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6267] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6267] mkdir("./bus", 000 [pid 5073] lstat("./99/file0", [pid 6267] <... mkdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6267] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6270] <... write resumed>) = 4194304 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./99/file0" [pid 6273] <... write resumed>) = 4194304 [ 171.108961][ T6269] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 171.125713][ T6267] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 171.137436][ T6272] loop3: detected capacity change from 0 to 8192 [ 171.145099][ T6269] REISERFS (device loop2): checking transaction log (loop2) [pid 5073] <... rmdir resumed>) = 0 [pid 6270] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6270] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6270] ioctl(4, LOOP_SET_FD, 3 [pid 5073] getdents64(3, [pid 6270] <... ioctl resumed>) = 0 [pid 6270] close(3) = 0 [pid 6270] mkdir("./file0", 0777) = 0 [pid 6270] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6273] munmap(0x7f7f7af80000, 4194304 [ 171.179324][ T6267] overlayfs: upper fs needs to support d_type. [ 171.183254][ T6270] loop1: detected capacity change from 0 to 8192 [ 171.186520][ T6272] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 171.207149][ T6269] REISERFS (device loop2): Using r5 hash to sort names [ 171.207478][ T6267] overlayfs: upper fs does not support tmpfile. [pid 5073] close(3 [pid 6273] <... munmap resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./99") = 0 [pid 6273] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] mkdir("./100", 0777 [pid 6273] <... openat resumed>) = 4 [pid 5073] <... mkdir resumed>) = 0 [pid 6273] ioctl(4, LOOP_SET_FD, 3 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [ 171.214582][ T6269] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 171.221915][ T6267] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 171.238163][ T6273] loop0: detected capacity change from 0 to 8192 [ 171.241557][ T6267] overlayfs: failed to resolve './file0': -2 [ 171.252956][ T6272] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 171.262601][ T6272] REISERFS (device loop3): using ordered data mode [ 171.269157][ T6272] reiserfs: using flush barriers [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6277 attached [pid 6273] <... ioctl resumed>) = 0 [pid 6269] <... mount resumed>) = 0 [pid 6267] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6277 [pid 6273] close(3 [pid 6269] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6267] creat("./file0/file0", 0202 [pid 6273] <... close resumed>) = 0 [pid 6269] <... openat resumed>) = 3 [pid 6267] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6273] mkdir("./file0", 0777 [pid 6269] chdir("./file0" [pid 6267] exit_group(0 [pid 6277] chdir("./100" [pid 6273] <... mkdir resumed>) = 0 [pid 6269] <... chdir resumed>) = 0 [pid 6267] <... exit_group resumed>) = ? [pid 6277] <... chdir resumed>) = 0 [pid 6273] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6269] ioctl(4, LOOP_CLR_FD [pid 6267] +++ exited with 0 +++ [pid 6277] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6269] <... ioctl resumed>) = 0 [pid 6277] <... prctl resumed>) = 0 [pid 6269] close(4 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6267, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 6277] setpgid(0, 0 [pid 6269] <... close resumed>) = 0 [pid 6277] <... setpgid resumed>) = 0 [pid 6269] mkdir("./file1", 000 [pid 6277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6269] <... mkdir resumed>) = 0 [pid 6277] <... openat resumed>) = 3 [pid 6269] mkdir("./bus", 000 [pid 6277] write(3, "1000", 4 [pid 6269] <... mkdir resumed>) = 0 [pid 6277] <... write resumed>) = 4 [pid 6269] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6277] close(3) = 0 [pid 6277] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6277] memfd_create("syzkaller", 0) = 3 [pid 6277] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5072] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 171.275518][ T6269] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 171.275639][ T6270] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 171.299341][ T6272] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 171.318777][ T6269] overlayfs: upper fs needs to support d_type. [pid 5072] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./98/binderfs") = 0 [ 171.326988][ T6273] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 171.345985][ T6269] overlayfs: upper fs does not support tmpfile. [ 171.353174][ T6269] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 171.362389][ T6270] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 171.363649][ T6272] REISERFS (device loop3): checking transaction log (loop3) [pid 5072] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6269] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6269] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [ 171.372025][ T6270] REISERFS (device loop1): using ordered data mode [ 171.383515][ T6273] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 171.397568][ T6269] overlayfs: failed to resolve './file0': -2 [ 171.406602][ T6272] REISERFS (device loop3): Using r5 hash to sort names [ 171.413786][ T6272] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6269] exit_group(0) = ? [pid 6272] <... mount resumed>) = 0 [pid 6269] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6269, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6272] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./98/binderfs") = 0 [pid 6272] <... openat resumed>) = 3 [pid 5070] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6272] chdir("./file0" [ 171.428165][ T6272] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 171.428497][ T6270] reiserfs: using flush barriers [ 171.438065][ T6273] REISERFS (device loop0): using ordered data mode [ 171.449615][ T6273] reiserfs: using flush barriers [ 171.457038][ T6273] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6277] 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"..., 4194304 [pid 6272] <... chdir resumed>) = 0 [pid 6272] ioctl(4, LOOP_CLR_FD) = 0 [pid 6272] close(4) = 0 [pid 6272] mkdir("./file1", 000) = 0 [pid 6272] mkdir("./bus", 000) = 0 [ 171.474119][ T6273] REISERFS (device loop0): checking transaction log (loop0) [ 171.482873][ T6273] REISERFS (device loop0): Using r5 hash to sort names [ 171.506409][ T6272] overlayfs: upper fs needs to support d_type. [ 171.512633][ T6272] overlayfs: upper fs does not support tmpfile. [pid 6272] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [ 171.520428][ T6270] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 171.523542][ T6273] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 171.560011][ T6272] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] <... umount2 resumed>) = 0 [pid 5072] rmdir("./98/file0" [pid 5070] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./98/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] fstat(4, [pid 6273] <... mount resumed>) = 0 [pid 6272] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./98/file0") = 0 [pid 6272] creat("./file0/file0", 0202 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6273] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6272] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] getdents64(3, [pid 6273] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6277] <... write resumed>) = 4194304 [pid 6273] chdir("./file0" [pid 6272] exit_group(0 [pid 5072] <... close resumed>) = 0 [pid 5070] close(3 [pid 6273] <... chdir resumed>) = 0 [pid 6272] <... exit_group resumed>) = ? [pid 5072] rmdir("./98" [pid 5070] <... close resumed>) = 0 [pid 6273] ioctl(4, LOOP_CLR_FD [pid 5070] rmdir("./98" [pid 6272] +++ exited with 0 +++ [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./99", 0777 [pid 6273] <... ioctl resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 171.581219][ T6272] overlayfs: failed to resolve './file0': -2 [ 171.588362][ T6273] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 171.600316][ T6270] REISERFS (device loop1): checking transaction log (loop1) [ 171.610236][ T6270] REISERFS (device loop1): Using r5 hash to sort names [pid 5070] close(3 [pid 6273] close(4 [pid 5072] mkdir("./99", 0777 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6272, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6279 ./strace-static-x86_64: Process 6279 attached [pid 6279] chdir("./99") = 0 [pid 6279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6279] setpgid(0, 0 [pid 6277] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6273] <... close resumed>) = 0 [pid 6279] <... setpgid resumed>) = 0 [pid 6273] mkdir("./file1", 000 [pid 6270] <... mount resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 6279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6277] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6273] <... mkdir resumed>) = 0 [pid 6270] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6279] <... openat resumed>) = 3 [pid 6277] <... openat resumed>) = 4 [pid 6273] mkdir("./bus", 000 [pid 6270] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5071] umount2("./97", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6279] write(3, "1000", 4 [pid 6277] ioctl(4, LOOP_SET_FD, 3 [pid 6273] <... mkdir resumed>) = 0 [pid 6270] chdir("./file0" [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6279] <... write resumed>) = 4 [pid 6273] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6270] <... chdir resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] openat(AT_FDCWD, "./97", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6279] close(3 [pid 6277] <... ioctl resumed>) = 0 [pid 6270] ioctl(4, LOOP_CLR_FD [pid 5072] close(3 [pid 5071] <... openat resumed>) = 3 [pid 6279] <... close resumed>) = 0 [pid 6270] <... ioctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] fstat(3, [pid 6279] symlink("/dev/binderfs", "./binderfs" [pid 6270] close(4 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6279] <... symlink resumed>) = 0 [pid 6270] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 6279] memfd_create("syzkaller", 0 [pid 6277] close(3 [pid 6270] mkdir("./file1", 000 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6280 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6279] <... memfd_create resumed>) = 3 [pid 6277] <... close resumed>) = 0 [pid 6270] <... mkdir resumed>) = 0 [pid 5071] umount2("./97/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6270] mkdir("./bus", 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6279] <... mmap resumed>) = 0x7f7f7af80000 [pid 6277] mkdir("./file0", 0777 [pid 6270] <... mkdir resumed>) = 0 [pid 5071] lstat("./97/binderfs", [ 171.621346][ T6270] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 171.636602][ T6270] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 171.655500][ T6277] loop5: detected capacity change from 0 to 8192 [ 171.656664][ T6273] overlayfs: upper fs needs to support d_type. [pid 6270] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 ./strace-static-x86_64: Process 6280 attached [pid 6277] <... mkdir resumed>) = 0 [pid 5071] unlink("./97/binderfs") = 0 [pid 6280] chdir("./99" [pid 6277] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6280] <... chdir resumed>) = 0 [ 171.695735][ T6270] overlayfs: upper fs needs to support d_type. [ 171.701971][ T6270] overlayfs: upper fs does not support tmpfile. [ 171.711285][ T6273] overlayfs: upper fs does not support tmpfile. [ 171.719531][ T6277] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 171.731846][ T6270] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6280] setpgid(0, 0) = 0 [pid 6280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6280] write(3, "1000", 4) = 4 [pid 6280] close(3) = 0 [pid 6280] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6280] memfd_create("syzkaller", 0) = 3 [pid 6280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 171.742506][ T6277] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 171.772204][ T6273] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6279] 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"..., 4194304 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./97/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6273] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./97/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6273] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6270] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6273] exit_group(0 [pid 6270] creat("./file0/file0", 0202 [pid 5071] openat(AT_FDCWD, "./97/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6273] <... exit_group resumed>) = ? [pid 6270] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... openat resumed>) = 4 [pid 6273] +++ exited with 0 +++ [pid 6270] exit_group(0 [pid 5071] fstat(4, [pid 6270] <... exit_group resumed>) = ? [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6273, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 6270] +++ exited with 0 +++ [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6270, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(4) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./97/file0" [pid 5068] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5068] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] fstat(3, [pid 5071] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] rmdir("./97" [pid 5069] <... openat resumed>) = 3 [pid 5068] getdents64(3, [pid 5071] <... rmdir resumed>) = 0 [pid 5069] fstat(3, [pid 5071] mkdir("./98", 0777 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [ 171.790675][ T6273] overlayfs: failed to resolve './file0': -2 [ 171.798567][ T6270] overlayfs: failed to resolve './file0': -2 [ 171.804680][ T6277] REISERFS (device loop5): using ordered data mode [ 171.820221][ T6277] reiserfs: using flush barriers [pid 5068] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5069] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] lstat("./99/binderfs", [pid 5071] close(3 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] unlink("./99/binderfs" [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6282 attached [pid 6280] 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"..., 4194304 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6282 [pid 5068] lstat("./99/binderfs", [pid 6282] chdir("./98" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./99/binderfs" [pid 6282] <... chdir resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 6282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6282] <... prctl resumed>) = 0 [pid 6282] setpgid(0, 0) = 0 [pid 6282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6282] write(3, "1000", 4) = 4 [pid 6282] close(3) = 0 [pid 6282] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6282] memfd_create("syzkaller", 0) = 3 [ 171.849024][ T6277] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 171.870638][ T6277] REISERFS (device loop5): checking transaction log (loop5) [pid 6282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 171.898568][ T6277] REISERFS (device loop5): Using r5 hash to sort names [pid 6279] <... write resumed>) = 4194304 [pid 6279] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6279] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6279] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6279] close(3) = 0 [pid 6279] mkdir("./file0", 0777) = 0 [ 171.942084][ T6277] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 171.960737][ T6279] loop2: detected capacity change from 0 to 8192 [pid 6279] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6280] <... write resumed>) = 4194304 [pid 6282] 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"..., 4194304 [pid 6280] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6280] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6280] <... openat resumed>) = 4 [pid 5069] lstat("./99/file0", [pid 6280] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./99/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./99") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5069] mkdir("./100", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6284 [ 171.995484][ T6279] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.019090][ T6280] loop4: detected capacity change from 0 to 8192 [ 172.026883][ T6277] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 172.032911][ T6279] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5068] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6284 attached [pid 5068] lstat("./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6284] chdir("./100" [pid 5068] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6284] <... chdir resumed>) = 0 [pid 6280] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6284] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6280] close(3 [pid 5068] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6277] <... mount resumed>) = 0 [pid 6277] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5068] <... openat resumed>) = 4 [pid 6284] <... prctl resumed>) = 0 [pid 5068] fstat(4, [pid 6277] chdir("./file0") = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6284] setpgid(0, 0 [pid 5068] getdents64(4, [pid 6284] <... setpgid resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6277] ioctl(4, LOOP_CLR_FD [pid 6284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] getdents64(4, [pid 6277] <... ioctl resumed>) = 0 [pid 6284] <... openat resumed>) = 3 [pid 6277] close(4 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6277] <... close resumed>) = 0 [pid 6277] mkdir("./file1", 000) = 0 [pid 6277] mkdir("./bus", 000) = 0 [pid 6277] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6284] write(3, "1000", 4 [pid 5068] close(4 [pid 6284] <... write resumed>) = 4 [pid 5068] <... close resumed>) = 0 [pid 6284] close(3 [pid 5068] rmdir("./99/file0" [ 172.046968][ T6279] REISERFS (device loop2): using ordered data mode [ 172.056097][ T6279] reiserfs: using flush barriers [ 172.075202][ T6277] overlayfs: upper fs needs to support d_type. [ 172.082013][ T6277] overlayfs: upper fs does not support tmpfile. [pid 6284] <... close resumed>) = 0 [pid 6280] <... close resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6282] <... write resumed>) = 4194304 [pid 6282] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6282] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6282] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6282] close(3) = 0 [pid 6282] mkdir("./file0", 0777 [pid 6284] symlink("/dev/binderfs", "./binderfs" [pid 6280] mkdir("./file0", 0777 [pid 5068] getdents64(3, [pid 6282] <... mkdir resumed>) = 0 [pid 6280] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6282] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6284] <... symlink resumed>) = 0 [pid 5068] close(3 [pid 6284] memfd_create("syzkaller", 0 [pid 6280] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... close resumed>) = 0 [pid 6284] <... memfd_create resumed>) = 3 [pid 5068] rmdir("./99" [pid 6284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6284] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] mkdir("./100", 0777) = 0 [ 172.093948][ T6277] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 172.102856][ T6277] overlayfs: failed to resolve './file0': -2 [ 172.106089][ T6282] loop3: detected capacity change from 0 to 8192 [ 172.118221][ T6279] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 172.136373][ T6279] REISERFS (device loop2): checking transaction log (loop2) [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6284] 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"..., 4194304 [pid 6277] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... openat resumed>) = 3 [pid 6277] creat("./file0/file0", 0202 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6277] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6277] exit_group(0) = ? [ 172.145689][ T6282] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.159543][ T6280] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.171146][ T6282] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 172.173873][ T6279] REISERFS (device loop2): Using r5 hash to sort names [ 172.188655][ T6280] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5068] close(3 [pid 6277] +++ exited with 0 +++ [pid 5068] <... close resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6277, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6287 [pid 5073] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 172.199550][ T6279] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 172.209434][ T6282] REISERFS (device loop3): using ordered data mode [ 172.218204][ T6280] REISERFS (device loop4): using ordered data mode [ 172.225684][ T6282] reiserfs: using flush barriers [ 172.233872][ T6282] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5073] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6284] <... write resumed>) = 4194304 [pid 5073] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6287 attached [pid 6284] munmap(0x7f7f7af80000, 4194304 [pid 5073] fstat(3, [pid 6284] <... munmap resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6284] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] getdents64(3, [pid 6284] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6284] ioctl(4, LOOP_SET_FD, 3 [pid 5073] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6287] chdir("./100" [pid 6279] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6287] <... chdir resumed>) = 0 [pid 6287] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6287] setpgid(0, 0) = 0 [pid 6287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6287] write(3, "1000", 4) = 4 [pid 6287] close(3) = 0 [pid 6287] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6287] memfd_create("syzkaller", 0) = 3 [pid 6287] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6279] chdir("./file0") = 0 [pid 6279] ioctl(4, LOOP_CLR_FD) = 0 [ 172.237278][ T6279] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 172.250693][ T6280] reiserfs: using flush barriers [ 172.260162][ T6282] REISERFS (device loop3): checking transaction log (loop3) [ 172.269048][ T6284] loop1: detected capacity change from 0 to 8192 [ 172.278351][ T6280] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5073] lstat("./100/binderfs", [pid 6284] <... ioctl resumed>) = 0 [pid 6279] close(4 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6279] <... close resumed>) = 0 [pid 6279] mkdir("./file1", 000) = 0 [pid 6279] mkdir("./bus", 000) = 0 [pid 6279] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6284] close(3 [pid 5073] unlink("./100/binderfs" [pid 6284] <... close resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 6284] mkdir("./file0", 0777 [pid 5073] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6282] <... mount resumed>) = 0 [pid 6282] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6282] chdir("./file0") = 0 [pid 6282] ioctl(4, LOOP_CLR_FD [pid 6284] <... mkdir resumed>) = 0 [pid 6282] <... ioctl resumed>) = 0 [pid 6282] close(4 [pid 6284] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6282] <... close resumed>) = 0 [ 172.295617][ T6282] REISERFS (device loop3): Using r5 hash to sort names [ 172.302710][ T6282] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 172.303728][ T6280] REISERFS (device loop4): checking transaction log (loop4) [ 172.319565][ T6282] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 172.333858][ T6279] overlayfs: upper fs needs to support d_type. [pid 6282] mkdir("./file1", 000 [pid 6287] 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"..., 4194304 [pid 6282] <... mkdir resumed>) = 0 [pid 6282] mkdir("./bus", 000) = 0 [ 172.347589][ T6279] overlayfs: upper fs does not support tmpfile. [ 172.360428][ T6282] overlayfs: upper fs needs to support d_type. [ 172.368463][ T6279] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 172.370016][ T6284] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.376891][ T6282] overlayfs: upper fs does not support tmpfile. [pid 6282] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on,") = -1 ENOENT (No such file or directory) [pid 6282] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6282] exit_group(0) = ? [pid 6282] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6282, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./98", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./98", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6287] <... write resumed>) = 4194304 [ 172.396111][ T6282] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 172.397309][ T6279] overlayfs: failed to resolve './file0': -2 [ 172.404782][ T6282] overlayfs: failed to resolve './file0': -2 [ 172.431741][ T6280] REISERFS (device loop4): Using r5 hash to sort names [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./98/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6287] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6287] <... munmap resumed>) = 0 [pid 5071] lstat("./98/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./98/binderfs") = 0 [pid 5071] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6287] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6279] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6287] <... openat resumed>) = 4 [pid 6279] creat("./file0/file0", 0202 [ 172.451414][ T6284] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 172.461235][ T6284] REISERFS (device loop1): using ordered data mode [ 172.467829][ T6284] reiserfs: using flush barriers [ 172.473960][ T6284] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 172.491347][ T6284] REISERFS (device loop1): checking transaction log (loop1) [pid 6287] ioctl(4, LOOP_SET_FD, 3 [pid 6279] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = 0 [pid 6279] exit_group(0 [pid 5073] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6279] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6287] <... ioctl resumed>) = 0 [pid 6279] +++ exited with 0 +++ [pid 5073] lstat("./100/file0", [pid 6287] close(3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6287] <... close resumed>) = 0 [pid 5073] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6287] mkdir("./file0", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6287] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6287] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... openat resumed>) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./100/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./100") = 0 [pid 5073] mkdir("./101", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6290 ./strace-static-x86_64: Process 6290 attached [pid 6290] chdir("./101") = 0 [pid 6290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6290] setpgid(0, 0) = 0 [pid 6290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6290] write(3, "1000", 4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6279, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6290] <... write resumed>) = 4 [pid 6290] close(3) = 0 [pid 6290] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5070] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6290] memfd_create("syzkaller", 0 [pid 5070] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6290] <... memfd_create resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, [pid 6290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6290] <... mmap resumed>) = 0x7f7f7af80000 [pid 5070] lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./99/binderfs") = 0 [ 172.513046][ T6287] loop0: detected capacity change from 0 to 8192 [ 172.513271][ T6280] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 172.548879][ T6287] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.560673][ T6280] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 172.574504][ T6284] REISERFS (device loop1): Using r5 hash to sort names [ 172.588939][ T6287] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5070] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6280] <... mount resumed>) = 0 [pid 6280] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6280] chdir("./file0") = 0 [pid 6280] ioctl(4, LOOP_CLR_FD) = 0 [pid 6280] close(4) = 0 [pid 6280] mkdir("./file1", 000) = 0 [pid 6280] mkdir("./bus", 000) = 0 [pid 6280] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 172.611142][ T6284] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 172.616654][ T6287] REISERFS (device loop0): using ordered data mode [ 172.625037][ T6284] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 172.653751][ T6280] overlayfs: upper fs needs to support d_type. [pid 6290] 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"..., 4194304 [pid 6284] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 6284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... umount2 resumed>) = 0 [pid 6284] <... openat resumed>) = 3 [pid 5071] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6284] chdir("./file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6284] <... chdir resumed>) = 0 [pid 5071] lstat("./98/file0", [pid 6284] ioctl(4, LOOP_CLR_FD [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6284] <... ioctl resumed>) = 0 [pid 5071] umount2("./98/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6284] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6284] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./98/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] lstat("./99/file0", [pid 6284] mkdir("./file1", 000) = 0 [ 172.673447][ T6287] reiserfs: using flush barriers [ 172.680993][ T6280] overlayfs: upper fs does not support tmpfile. [ 172.712027][ T6280] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5071] <... openat resumed>) = 4 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6284] mkdir("./bus", 000 [pid 5071] fstat(4, [pid 6284] <... mkdir resumed>) = 0 [pid 6280] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6284] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6280] creat("./file0/file0", 0202 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6280] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6280] exit_group(0 [pid 5071] getdents64(4, [pid 5070] <... openat resumed>) = 4 [pid 6280] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] fstat(4, [pid 6280] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6280, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5071] close(4 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] getdents64(4, [ 172.720600][ T6287] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 172.722413][ T6280] overlayfs: failed to resolve './file0': -2 [ 172.751467][ T6284] overlayfs: upper fs needs to support d_type. [pid 5071] rmdir("./98/file0" [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(3, [pid 5070] getdents64(4, [pid 5072] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] close(3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./99/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./99/binderfs") = 0 [pid 5072] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5070] close(4 [pid 5071] rmdir("./98" [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./99/file0" [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./99", 0777 [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, [pid 5071] <... mkdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] close(3 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... close resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5070] rmdir("./99" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... rmdir resumed>) = 0 [pid 5071] close(3) = 0 [pid 5070] mkdir("./100", 0777 [pid 6290] <... write resumed>) = 4194304 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6291 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6291 attached , child_tidptr=0x5555559fa5d0) = 6292 [pid 6291] chdir("./99") = 0 [pid 6291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6290] munmap(0x7f7f7af80000, 4194304 [pid 6291] setpgid(0, 0 [pid 6290] <... munmap resumed>) = 0 [pid 6291] <... setpgid resumed>) = 0 [pid 6290] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 6292 attached [pid 6291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6290] <... openat resumed>) = 4 [pid 6292] chdir("./100" [pid 6291] <... openat resumed>) = 3 [ 172.769392][ T6284] overlayfs: upper fs does not support tmpfile. [ 172.780858][ T6284] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 172.807589][ T6287] REISERFS (device loop0): checking transaction log (loop0) [pid 6290] ioctl(4, LOOP_SET_FD, 3 [pid 6292] <... chdir resumed>) = 0 [pid 6291] write(3, "1000", 4 [pid 6292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6291] <... write resumed>) = 4 [pid 6292] <... prctl resumed>) = 0 [pid 6291] close(3 [pid 6292] setpgid(0, 0 [pid 6291] <... close resumed>) = 0 [pid 6292] <... setpgid resumed>) = 0 [pid 6291] symlink("/dev/binderfs", "./binderfs" [pid 6292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6291] <... symlink resumed>) = 0 [pid 6292] <... openat resumed>) = 3 [pid 6291] memfd_create("syzkaller", 0 [pid 6292] write(3, "1000", 4 [pid 6291] <... memfd_create resumed>) = 3 [pid 6292] <... write resumed>) = 4 [pid 6291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6292] close(3 [pid 6291] <... mmap resumed>) = 0x7f7f7af80000 [pid 6292] <... close resumed>) = 0 [pid 6292] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6292] memfd_create("syzkaller", 0) = 3 [pid 6292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6290] <... ioctl resumed>) = 0 [pid 6290] close(3) = 0 [pid 6290] mkdir("./file0", 0777) = 0 [pid 6290] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6284] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6284] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6284] exit_group(0) = ? [ 172.831883][ T6290] loop5: detected capacity change from 0 to 8192 [ 172.849368][ T6284] overlayfs: failed to resolve './file0': -2 [ 172.857193][ T6287] REISERFS (device loop0): Using r5 hash to sort names [pid 6284] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./99/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6284, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5072] close(4) = 0 [pid 5072] rmdir("./99/file0" [pid 5069] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [ 172.893676][ T6290] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 172.897418][ T6287] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 172.906781][ T6290] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 172.906873][ T6290] REISERFS (device loop5): using ordered data mode [ 172.935228][ T6290] reiserfs: using flush barriers [pid 5069] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5069] fstat(3, [pid 5072] <... close resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./99" [pid 5069] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] mkdir("./100", 0777 [pid 5069] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6287] <... mount resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] lstat("./100/binderfs", [pid 6287] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6292] 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"..., 4194304 [pid 6287] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] unlink("./100/binderfs" [pid 6287] chdir("./file0" [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... unlink resumed>) = 0 [pid 6287] <... chdir resumed>) = 0 [ 172.941420][ T6287] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 172.950585][ T6290] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 172.967078][ T6290] REISERFS (device loop5): checking transaction log (loop5) [ 172.983500][ T6290] REISERFS (device loop5): Using r5 hash to sort names [pid 5072] close(3 [pid 5069] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6291] 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"..., 4194304 [pid 6287] ioctl(4, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6287] <... ioctl resumed>) = 0 [pid 6287] close(4 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6294 [pid 6287] <... close resumed>) = 0 [pid 6287] mkdir("./file1", 000) = 0 [pid 6287] mkdir("./bus", 000./strace-static-x86_64: Process 6294 attached ) = 0 [pid 6287] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6294] chdir("./100") = 0 [pid 6294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6294] setpgid(0, 0) = 0 [pid 6294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6294] write(3, "1000", 4) = 4 [pid 6294] close(3) = 0 [pid 6294] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6294] memfd_create("syzkaller", 0) = 3 [pid 6294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 172.990607][ T6290] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 173.012555][ T6290] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 173.031063][ T6287] overlayfs: upper fs needs to support d_type. [pid 6291] <... write resumed>) = 4194304 [pid 6291] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6294] 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"..., 4194304 [pid 6290] <... mount resumed>) = 0 [pid 6291] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6291] <... openat resumed>) = 4 [pid 6290] <... openat resumed>) = 3 [pid 6291] ioctl(4, LOOP_SET_FD, 3 [pid 6290] chdir("./file0" [pid 6291] <... ioctl resumed>) = 0 [pid 6290] <... chdir resumed>) = 0 [pid 6290] ioctl(4, LOOP_CLR_FD) = 0 [pid 6290] close(4) = 0 [pid 6290] mkdir("./file1", 000) = 0 [pid 6290] mkdir("./bus", 000) = 0 [ 173.067335][ T6287] overlayfs: upper fs does not support tmpfile. [ 173.091222][ T6287] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 173.105205][ T6291] loop3: detected capacity change from 0 to 8192 [pid 6290] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6291] close(3) = 0 [pid 6291] mkdir("./file0", 0777) = 0 [ 173.115643][ T6290] overlayfs: upper fs needs to support d_type. [ 173.121858][ T6290] overlayfs: upper fs does not support tmpfile. [ 173.134882][ T6287] overlayfs: failed to resolve './file0': -2 [ 173.154834][ T6291] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6291] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6287] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6287] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6287] exit_group(0) = ? [pid 6287] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6287, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5068] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./100/binderfs" [pid 6294] <... write resumed>) = 4194304 [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6292] <... write resumed>) = 4194304 [pid 6294] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6294] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6294] ioctl(4, LOOP_SET_FD, 3 [pid 6292] munmap(0x7f7f7af80000, 4194304 [pid 6290] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6290] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6290] exit_group(0) = ? [ 173.163924][ T6290] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 173.196569][ T6290] overlayfs: failed to resolve './file0': -2 [ 173.210259][ T6294] loop4: detected capacity change from 0 to 8192 [pid 5069] <... umount2 resumed>) = 0 [pid 6292] <... munmap resumed>) = 0 [pid 6292] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6292] ioctl(4, LOOP_SET_FD, 3 [pid 6294] <... ioctl resumed>) = 0 [pid 5069] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6290] +++ exited with 0 +++ [pid 6292] <... ioctl resumed>) = 0 [pid 6292] close(3) = 0 [pid 6292] mkdir("./file0", 0777) = 0 [pid 6292] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6294] close(3) = 0 [pid 6294] mkdir("./file0", 0777) = 0 [pid 6294] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6290, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./101/binderfs") = 0 [pid 5073] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 173.220497][ T6291] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 173.231602][ T6292] loop2: detected capacity change from 0 to 8192 [ 173.237463][ T6291] REISERFS (device loop3): using ordered data mode [ 173.254544][ T6291] reiserfs: using flush barriers [pid 5069] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./100/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./100") = 0 [pid 5069] mkdir("./101", 0777) = 0 [ 173.264326][ T6292] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 173.265037][ T6294] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 173.291882][ T6291] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 173.308500][ T6291] REISERFS (device loop3): checking transaction log (loop3) [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] <... umount2 resumed>) = 0 [pid 5069] close(3) = 0 [pid 5068] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./100/file0", [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6298 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 ./strace-static-x86_64: Process 6298 attached [pid 5068] fstat(4, [pid 6298] chdir("./101" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6298] <... chdir resumed>) = 0 [ 173.316331][ T6292] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 173.325690][ T6292] REISERFS (device loop2): using ordered data mode [ 173.329497][ T6291] REISERFS (device loop3): Using r5 hash to sort names [ 173.332187][ T6292] reiserfs: using flush barriers [ 173.344201][ T6292] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5068] getdents64(4, [pid 6298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6298] <... prctl resumed>) = 0 [pid 5068] getdents64(4, [pid 6298] setpgid(0, 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6298] <... setpgid resumed>) = 0 [pid 5068] close(4 [pid 6298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5068] <... close resumed>) = 0 [pid 6298] <... openat resumed>) = 3 [pid 5068] rmdir("./100/file0" [pid 6298] write(3, "1000", 4 [pid 5068] <... rmdir resumed>) = 0 [pid 6298] <... write resumed>) = 4 [pid 5068] getdents64(3, [pid 6298] close(3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6298] <... close resumed>) = 0 [pid 5068] close(3 [pid 6298] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... close resumed>) = 0 [pid 6298] <... symlink resumed>) = 0 [pid 5068] rmdir("./100" [pid 6298] memfd_create("syzkaller", 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6298] <... memfd_create resumed>) = 3 [pid 5068] mkdir("./101", 0777 [pid 6298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... mkdir resumed>) = 0 [pid 6298] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 173.365917][ T6292] REISERFS (device loop2): checking transaction log (loop2) [ 173.373645][ T6291] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 173.387060][ T6292] REISERFS (device loop2): Using r5 hash to sort names [ 173.394425][ T6292] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 173.407468][ T6291] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6299 ./strace-static-x86_64: Process 6299 attached [pid 6299] chdir("./101") = 0 [pid 6291] <... mount resumed>) = 0 [pid 6299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6292] <... mount resumed>) = 0 [pid 6291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6299] <... prctl resumed>) = 0 [pid 6299] setpgid(0, 0) = 0 [pid 6299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6299] write(3, "1000", 4) = 4 [pid 6299] close(3) = 0 [pid 6299] symlink("/dev/binderfs", "./binderfs" [pid 6292] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6291] <... openat resumed>) = 3 [pid 6299] <... symlink resumed>) = 0 [pid 6292] <... openat resumed>) = 3 [pid 6291] chdir("./file0" [pid 6299] memfd_create("syzkaller", 0 [pid 6292] chdir("./file0" [pid 6291] <... chdir resumed>) = 0 [pid 6299] <... memfd_create resumed>) = 3 [pid 6292] <... chdir resumed>) = 0 [pid 6291] ioctl(4, LOOP_CLR_FD [pid 6299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 173.416709][ T6292] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 173.430576][ T6294] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 173.440583][ T6294] REISERFS (device loop4): using ordered data mode [ 173.461433][ T6294] reiserfs: using flush barriers [pid 6292] ioctl(4, LOOP_CLR_FD [pid 6291] <... ioctl resumed>) = 0 [pid 6292] <... ioctl resumed>) = 0 [pid 6291] close(4 [pid 6292] close(4 [pid 6291] <... close resumed>) = 0 [pid 6292] <... close resumed>) = 0 [pid 6291] mkdir("./file1", 000 [pid 6292] mkdir("./file1", 000) = 0 [pid 6291] <... mkdir resumed>) = 0 [ 173.468331][ T6294] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 173.485386][ T6294] REISERFS (device loop4): checking transaction log (loop4) [pid 6298] 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"..., 4194304 [pid 6292] mkdir("./bus", 000 [pid 6291] mkdir("./bus", 000 [pid 5073] <... umount2 resumed>) = 0 [pid 6292] <... mkdir resumed>) = 0 [pid 6291] <... mkdir resumed>) = 0 [pid 5073] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6292] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6291] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./101/file0") = 0 [ 173.514375][ T6294] REISERFS (device loop4): Using r5 hash to sort names [ 173.521523][ T6294] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 173.553845][ T6291] overlayfs: upper fs needs to support d_type. [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./101") = 0 [pid 5073] mkdir("./102", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6299] 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"..., 4194304 [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6300 ./strace-static-x86_64: Process 6300 attached [pid 6300] chdir("./102") = 0 [pid 6300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6300] setpgid(0, 0) = 0 [pid 6300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6300] write(3, "1000", 4) = 4 [pid 6300] close(3) = 0 [ 173.560061][ T6291] overlayfs: upper fs does not support tmpfile. [ 173.566996][ T6292] overlayfs: upper fs needs to support d_type. [ 173.573209][ T6292] overlayfs: upper fs does not support tmpfile. [ 173.581206][ T6294] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 173.601537][ T6291] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6300] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6300] memfd_create("syzkaller", 0) = 3 [pid 6300] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6294] <... mount resumed>) = 0 [pid 6300] <... mmap resumed>) = 0x7f7f7af80000 [pid 6294] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6292] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6291] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6294] <... openat resumed>) = 3 [pid 6292] creat("./file0/file0", 0202 [pid 6291] creat("./file0/file0", 0202 [pid 6294] chdir("./file0" [pid 6292] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6291] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6294] <... chdir resumed>) = 0 [pid 6292] exit_group(0 [pid 6291] exit_group(0 [pid 6294] ioctl(4, LOOP_CLR_FD [pid 6292] <... exit_group resumed>) = ? [pid 6291] <... exit_group resumed>) = ? [pid 6294] <... ioctl resumed>) = 0 [pid 6292] +++ exited with 0 +++ [pid 6294] close(4 [pid 6291] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6292, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 6294] <... close resumed>) = 0 [pid 5070] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6291, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./99", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./99", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] fstat(3, [pid 5071] <... openat resumed>) = 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6294] mkdir("./file1", 000 [pid 5071] fstat(3, [pid 5070] getdents64(3, [pid 6294] <... mkdir resumed>) = 0 [ 173.618615][ T6292] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 173.627743][ T6291] overlayfs: failed to resolve './file0': -2 [ 173.635250][ T6292] overlayfs: failed to resolve './file0': -2 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6294] mkdir("./bus", 000 [pid 5071] getdents64(3, [pid 5070] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6294] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6294] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] umount2("./99/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./100/binderfs", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6300] 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"..., 4194304 [pid 6299] <... write resumed>) = 4194304 [pid 5071] lstat("./99/binderfs", [pid 5070] unlink("./100/binderfs" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5071] unlink("./99/binderfs" [pid 5070] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6299] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6298] <... write resumed>) = 4194304 [pid 6299] <... munmap resumed>) = 0 [pid 6298] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6298] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6298] ioctl(4, LOOP_SET_FD, 3 [pid 6299] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6294] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 173.689956][ T6294] overlayfs: upper fs needs to support d_type. [ 173.700106][ T6294] overlayfs: upper fs does not support tmpfile. [ 173.713127][ T6294] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 173.724265][ T6294] overlayfs: failed to resolve './file0': -2 [ 173.729739][ T6298] loop1: detected capacity change from 0 to 8192 [pid 6299] <... openat resumed>) = 4 [pid 6294] creat("./file0/file0", 0202 [pid 6299] ioctl(4, LOOP_SET_FD, 3 [pid 6294] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6298] <... ioctl resumed>) = 0 [pid 6298] close(3) = 0 [pid 6298] mkdir("./file0", 0777) = 0 [pid 6298] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6294] exit_group(0) = ? [pid 6294] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6294, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5072] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6299] <... ioctl resumed>) = 0 [pid 5072] getdents64(3, [pid 6299] close(3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6299] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./100/binderfs", [pid 6299] mkdir("./file0", 0777 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./100/binderfs") = 0 [pid 6299] <... mkdir resumed>) = 0 [pid 5072] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 173.741216][ T6299] loop0: detected capacity change from 0 to 8192 [pid 6299] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6300] <... write resumed>) = 4194304 [pid 6300] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6300] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6300] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... umount2 resumed>) = 0 [pid 6300] <... ioctl resumed>) = 0 [ 173.790435][ T6299] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 173.804326][ T6298] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 173.824233][ T6299] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 173.834102][ T6300] loop5: detected capacity change from 0 to 8192 [pid 5070] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6300] close(3 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6300] <... close resumed>) = 0 [pid 5070] lstat("./100/file0", [pid 6300] mkdir("./file0", 0777 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6300] <... mkdir resumed>) = 0 [pid 5070] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6300] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./100/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [ 173.841476][ T6299] REISERFS (device loop0): using ordered data mode [ 173.849016][ T6299] reiserfs: using flush barriers [ 173.855173][ T6298] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 173.864877][ T6298] REISERFS (device loop1): using ordered data mode [ 173.871607][ T6298] reiserfs: using flush barriers [pid 5071] <... umount2 resumed>) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./100") = 0 [pid 5070] mkdir("./101", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 173.881359][ T6298] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 173.883183][ T6299] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 173.914104][ T6299] REISERFS (device loop0): checking transaction log (loop0) [ 173.922122][ T6298] REISERFS (device loop1): checking transaction log (loop1) [pid 5071] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 5072] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./99/file0", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] lstat("./100/file0", [pid 5071] umount2("./99/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./99/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 4 [pid 5072] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] fstat(4, [pid 5072] <... openat resumed>) = 4 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] fstat(4, [pid 5071] getdents64(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5071] getdents64(4, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(4, [pid 5071] close(4 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... close resumed>) = 0 [pid 5072] close(4 [pid 5071] rmdir("./99/file0" [pid 5072] <... close resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] rmdir("./100/file0" [pid 5071] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(3, [pid 5071] close(3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... close resumed>) = 0 [pid 5072] close(3 [pid 5071] rmdir("./99" [pid 5072] <... close resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5072] rmdir("./100" [pid 5071] mkdir("./100", 0777 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5072] mkdir("./101", 0777 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5072] <... openat resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] close(3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... close resumed>) = 0 [pid 5072] close(3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6304 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6305 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6306 [ 173.922210][ T6300] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 173.944810][ T6298] REISERFS (device loop1): Using r5 hash to sort names [ 173.955944][ T6299] REISERFS (device loop0): Using r5 hash to sort names [ 173.974054][ T6298] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! ./strace-static-x86_64: Process 6306 attached ./strace-static-x86_64: Process 6305 attached ./strace-static-x86_64: Process 6304 attached [pid 6306] chdir("./101" [pid 6305] chdir("./101" [pid 6304] chdir("./100" [pid 6306] <... chdir resumed>) = 0 [pid 6305] <... chdir resumed>) = 0 [pid 6304] <... chdir resumed>) = 0 [pid 6306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6304] setpgid(0, 0 [pid 6306] <... prctl resumed>) = 0 [pid 6305] <... prctl resumed>) = 0 [pid 6304] <... setpgid resumed>) = 0 [ 173.989421][ T6299] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 173.996746][ T6300] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 174.004834][ T6298] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 174.012778][ T6300] REISERFS (device loop5): using ordered data mode [ 174.021521][ T6299] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 174.027584][ T6300] reiserfs: using flush barriers [pid 6306] setpgid(0, 0 [pid 6305] setpgid(0, 0 [pid 6304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6298] <... mount resumed>) = 0 [pid 6298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6306] <... setpgid resumed>) = 0 [pid 6305] <... setpgid resumed>) = 0 [pid 6298] chdir("./file0") = 0 [pid 6304] <... openat resumed>) = 3 [pid 6298] ioctl(4, LOOP_CLR_FD [pid 6305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6298] <... ioctl resumed>) = 0 [pid 6306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6298] close(4 [pid 6306] <... openat resumed>) = 3 [pid 6298] <... close resumed>) = 0 [pid 6298] mkdir("./file1", 000) = 0 [pid 6298] mkdir("./bus", 000) = 0 [pid 6298] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6306] write(3, "1000", 4 [pid 6305] <... openat resumed>) = 3 [pid 6304] write(3, "1000", 4 [pid 6299] <... mount resumed>) = 0 [pid 6306] <... write resumed>) = 4 [pid 6305] write(3, "1000", 4 [pid 6304] <... write resumed>) = 4 [pid 6306] close(3 [pid 6304] close(3 [pid 6306] <... close resumed>) = 0 [pid 6305] <... write resumed>) = 4 [pid 6306] symlink("/dev/binderfs", "./binderfs" [pid 6305] close(3 [pid 6304] <... close resumed>) = 0 [ 174.043134][ T6300] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 174.065686][ T6300] REISERFS (device loop5): checking transaction log (loop5) [ 174.073986][ T6298] overlayfs: upper fs needs to support d_type. [ 174.080192][ T6298] overlayfs: upper fs does not support tmpfile. [pid 6304] symlink("/dev/binderfs", "./binderfs" [pid 6306] <... symlink resumed>) = 0 [pid 6305] <... close resumed>) = 0 [pid 6304] <... symlink resumed>) = 0 [pid 6299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6306] memfd_create("syzkaller", 0 [pid 6305] symlink("/dev/binderfs", "./binderfs" [pid 6304] memfd_create("syzkaller", 0 [pid 6299] <... openat resumed>) = 3 [pid 6306] <... memfd_create resumed>) = 3 [pid 6305] <... symlink resumed>) = 0 [pid 6304] <... memfd_create resumed>) = 3 [pid 6299] chdir("./file0" [pid 6306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6305] memfd_create("syzkaller", 0 [pid 6304] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6298] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6305] <... memfd_create resumed>) = 3 [pid 6304] <... mmap resumed>) = 0x7f7f7af80000 [pid 6299] <... chdir resumed>) = 0 [pid 6305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6300] <... mount resumed>) = 0 [pid 6298] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6298] exit_group(0) = ? [pid 6298] +++ exited with 0 +++ [pid 6299] ioctl(4, LOOP_CLR_FD [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6298, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 6305] <... mmap resumed>) = 0x7f7f7af80000 [pid 6300] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6299] <... ioctl resumed>) = 0 [pid 6299] close(4) = 0 [pid 6299] mkdir("./file1", 000) = 0 [pid 6299] mkdir("./bus", 000) = 0 [ 174.089622][ T6300] REISERFS (device loop5): Using r5 hash to sort names [ 174.097401][ T6298] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 174.099672][ T6300] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 174.106249][ T6298] overlayfs: failed to resolve './file0': -2 [ 174.118643][ T6300] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6299] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6300] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6300] chdir("./file0" [pid 5069] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6300] <... chdir resumed>) = 0 [pid 5069] fstat(3, [pid 6300] ioctl(4, LOOP_CLR_FD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 6300] <... ioctl resumed>) = 0 [pid 6300] close(4 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6300] <... close resumed>) = 0 [pid 5069] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6300] mkdir("./file1", 000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6300] <... mkdir resumed>) = 0 [pid 6300] mkdir("./bus", 000 [pid 5069] lstat("./101/binderfs", [pid 6300] <... mkdir resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6300] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5069] unlink("./101/binderfs") = 0 [ 174.150514][ T6299] overlayfs: upper fs needs to support d_type. [ 174.168606][ T6300] overlayfs: upper fs needs to support d_type. [ 174.174067][ T6299] overlayfs: upper fs does not support tmpfile. [pid 5069] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 174.202996][ T6300] overlayfs: upper fs does not support tmpfile. [ 174.222938][ T6299] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 174.237063][ T6300] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6306] 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"..., 4194304 [pid 6305] 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"..., 4194304 [pid 6304] 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"..., 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6300] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6300] creat("./file0/file0", 0202 [pid 5069] <... openat resumed>) = 4 [pid 6300] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] fstat(4, [pid 6300] exit_group(0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6300] <... exit_group resumed>) = ? [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6300] +++ exited with 0 +++ [pid 5069] close(4 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6300, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./101/file0") = 0 [pid 5073] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5069] close(3 [pid 6299] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 174.261387][ T6300] overlayfs: failed to resolve './file0': -2 [ 174.272908][ T6299] overlayfs: failed to resolve './file0': -2 [pid 5073] fstat(3, [pid 6299] creat("./file0/file0", 0202 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 6299] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] getdents64(3, [pid 5069] rmdir("./101" [pid 6299] exit_group(0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6299] <... exit_group resumed>) = ? [pid 5073] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 6299] +++ exited with 0 +++ [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./102", 0777 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6299, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5073] lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./102/binderfs" [pid 5069] <... mkdir resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5068] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] close(3 [pid 6304] <... write resumed>) = 4194304 [pid 5069] <... close resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6305] <... write resumed>) = 4194304 [pid 6304] munmap(0x7f7f7af80000, 4194304 [pid 5068] fstat(3, [pid 6305] munmap(0x7f7f7af80000, 4194304 [pid 6304] <... munmap resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6305] <... munmap resumed>) = 0 [pid 6304] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6307 [pid 5068] getdents64(3, [pid 6305] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6304] <... openat resumed>) = 4 [pid 6305] <... openat resumed>) = 4 [pid 6304] ioctl(4, LOOP_SET_FD, 3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6305] ioctl(4, LOOP_SET_FD, 3 [pid 5068] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6307 attached [pid 6307] chdir("./102") = 0 [pid 6307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6307] setpgid(0, 0) = 0 [pid 6307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6307] write(3, "1000", 4) = 4 [pid 6307] close(3) = 0 [pid 6307] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6305] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6307] memfd_create("syzkaller", 0 [pid 6305] close(3 [pid 6304] <... ioctl resumed>) = 0 [pid 5068] lstat("./101/binderfs", [pid 6307] <... memfd_create resumed>) = 3 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6305] <... close resumed>) = 0 [pid 6304] close(3 [pid 5068] unlink("./101/binderfs" [pid 6307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6306] <... write resumed>) = 4194304 [pid 6305] mkdir("./file0", 0777 [pid 6304] <... close resumed>) = 0 [pid 5068] <... unlink resumed>) = 0 [pid 6306] munmap(0x7f7f7af80000, 4194304 [pid 6305] <... mkdir resumed>) = 0 [pid 6304] mkdir("./file0", 0777 [pid 5068] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6307] <... mmap resumed>) = 0x7f7f7af80000 [pid 6306] <... munmap resumed>) = 0 [pid 6305] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6304] <... mkdir resumed>) = 0 [pid 6306] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6304] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6306] <... openat resumed>) = 4 [pid 6306] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6306] close(3) = 0 [ 174.367933][ T6304] loop3: detected capacity change from 0 to 8192 [ 174.375071][ T6305] loop4: detected capacity change from 0 to 8192 [ 174.404798][ T6306] loop2: detected capacity change from 0 to 8192 [pid 6306] mkdir("./file0", 0777) = 0 [pid 6306] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./102/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 174.416467][ T6304] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 174.430186][ T6305] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6307] 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"..., 4194304 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [ 174.463821][ T6306] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 174.469050][ T6304] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 174.488245][ T6304] REISERFS (device loop3): using ordered data mode [ 174.488489][ T6305] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 174.495320][ T6304] reiserfs: using flush barriers [pid 5073] close(4) = 0 [pid 5073] rmdir("./102/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./102") = 0 [pid 5073] mkdir("./103", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [ 174.511627][ T6306] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 174.520967][ T6304] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 174.521321][ T6304] REISERFS (device loop3): checking transaction log (loop3) [ 174.546486][ T6304] REISERFS (device loop3): Using r5 hash to sort names [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6311 ./strace-static-x86_64: Process 6311 attached [pid 6311] chdir("./103") = 0 [pid 6304] <... mount resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6311] setpgid(0, 0) = 0 [pid 6311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6311] write(3, "1000", 4) = 4 [pid 6311] close(3) = 0 [pid 6304] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6311] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6311] memfd_create("syzkaller", 0) = 3 [pid 6311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6304] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 174.554196][ T6304] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 174.567593][ T6304] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 174.578034][ T6305] REISERFS (device loop4): using ordered data mode [ 174.585383][ T6305] reiserfs: using flush barriers [ 174.592688][ T6305] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6304] chdir("./file0" [pid 5068] lstat("./101/file0", [pid 6304] <... chdir resumed>) = 0 [pid 6304] ioctl(4, LOOP_CLR_FD [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6304] <... ioctl resumed>) = 0 [pid 5068] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6304] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6304] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6304] mkdir("./file1", 000) = 0 [pid 5068] <... openat resumed>) = 4 [pid 6304] mkdir("./bus", 000 [pid 5068] fstat(4, [pid 6304] <... mkdir resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6304] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./101/file0") = 0 [ 174.609642][ T6305] REISERFS (device loop4): checking transaction log (loop4) [ 174.619585][ T6305] REISERFS (device loop4): Using r5 hash to sort names [ 174.627795][ T6305] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 174.641483][ T6305] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 174.653172][ T6304] overlayfs: upper fs needs to support d_type. [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 6307] <... write resumed>) = 4194304 [pid 5068] rmdir("./101" [pid 6307] munmap(0x7f7f7af80000, 4194304 [pid 6305] <... mount resumed>) = 0 [pid 6307] <... munmap resumed>) = 0 [pid 6305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... rmdir resumed>) = 0 [pid 6307] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6307] ioctl(4, LOOP_SET_FD, 3 [pid 6311] 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"..., 4194304 [pid 6305] <... openat resumed>) = 3 [pid 5068] mkdir("./102", 0777 [pid 6307] <... ioctl resumed>) = 0 [pid 6307] close(3) = 0 [pid 6307] mkdir("./file0", 0777) = 0 [pid 6307] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6305] chdir("./file0" [pid 5068] <... mkdir resumed>) = 0 [pid 6305] <... chdir resumed>) = 0 [pid 6304] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6305] ioctl(4, LOOP_CLR_FD [pid 6304] creat("./file0/file0", 0202 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6305] <... ioctl resumed>) = 0 [pid 6304] <... creat resumed>) = -1 ENOENT (No such file or directory) [ 174.669347][ T6304] overlayfs: upper fs does not support tmpfile. [ 174.677634][ T6306] REISERFS (device loop2): using ordered data mode [ 174.679809][ T6304] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 174.695173][ T6304] overlayfs: failed to resolve './file0': -2 [ 174.698424][ T6307] loop1: detected capacity change from 0 to 8192 [ 174.702346][ T6306] reiserfs: using flush barriers [pid 6305] close(4 [pid 6304] exit_group(0 [pid 5068] <... openat resumed>) = 3 [pid 6305] <... close resumed>) = 0 [pid 6305] mkdir("./file1", 000 [pid 6304] <... exit_group resumed>) = ? [pid 5068] ioctl(3, LOOP_CLR_FD [ 174.723563][ T6307] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 174.739120][ T6307] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 174.739331][ T6306] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 174.750611][ T6307] REISERFS (device loop1): using ordered data mode [pid 6305] <... mkdir resumed>) = 0 [pid 6304] +++ exited with 0 +++ [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6305] mkdir("./bus", 000 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6304, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5068] close(3 [pid 6305] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5071] umount2("./100", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6305] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./100", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 6313 attached ) = 3 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6313 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./100/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6313] chdir("./102") = 0 [pid 6313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6313] setpgid(0, 0) = 0 [pid 6313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6313] write(3, "1000", 4) = 4 [pid 6313] close(3) = 0 [pid 6313] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6313] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./100/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./100/binderfs" [pid 6313] <... memfd_create resumed>) = 3 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 174.771585][ T6307] reiserfs: using flush barriers [ 174.785696][ T6305] overlayfs: upper fs needs to support d_type. [ 174.786052][ T6307] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 174.809920][ T6305] overlayfs: upper fs does not support tmpfile. [ 174.858810][ T6307] REISERFS (device loop1): checking transaction log (loop1) [ 174.858982][ T6305] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 174.882814][ T6307] REISERFS (device loop1): Using r5 hash to sort names [pid 6313] 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"..., 4194304 [pid 6311] <... write resumed>) = 4194304 [pid 6311] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6311] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5071] <... umount2 resumed>) = 0 [pid 6311] ioctl(4, LOOP_SET_FD, 3 [pid 5071] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6305] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6305] creat("./file0/file0", 0202 [pid 5071] lstat("./100/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 174.902495][ T6306] REISERFS (device loop2): checking transaction log (loop2) [ 174.920740][ T6305] overlayfs: failed to resolve './file0': -2 [ 174.929260][ T6311] loop5: detected capacity change from 0 to 8192 [ 174.936512][ T6307] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6311] <... ioctl resumed>) = 0 [pid 6307] <... mount resumed>) = 0 [pid 6305] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./100/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6311] close(3 [pid 6307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6305] exit_group(0 [pid 6311] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6311] mkdir("./file0", 0777 [pid 6307] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./100/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6305] <... exit_group resumed>) = ? [pid 6311] <... mkdir resumed>) = 0 [pid 6307] chdir("./file0" [pid 5071] <... openat resumed>) = 4 [pid 6313] <... write resumed>) = 4194304 [pid 6311] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6307] <... chdir resumed>) = 0 [pid 6305] +++ exited with 0 +++ [pid 5071] fstat(4, [pid 6307] ioctl(4, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6307] <... ioctl resumed>) = 0 [pid 5071] getdents64(4, [pid 6307] close(4 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6307] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 6307] mkdir("./file1", 000 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6307] <... mkdir resumed>) = 0 [pid 5071] close(4 [pid 6307] mkdir("./bus", 000 [pid 5071] <... close resumed>) = 0 [pid 6307] <... mkdir resumed>) = 0 [pid 5071] rmdir("./100/file0" [pid 6307] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./100") = 0 [pid 5071] mkdir("./101", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6315 [pid 6313] munmap(0x7f7f7af80000, 4194304) = 0 ./strace-static-x86_64: Process 6315 attached [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6305, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 6315] chdir("./101" [pid 6313] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6315] <... chdir resumed>) = 0 [pid 6313] <... openat resumed>) = 4 [ 174.950452][ T6307] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 174.950845][ T6306] REISERFS (device loop2): Using r5 hash to sort names [ 174.970658][ T6306] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 174.992283][ T6306] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 175.001841][ T6307] overlayfs: upper fs needs to support d_type. [pid 6315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6313] ioctl(4, LOOP_SET_FD, 3 [pid 6306] <... mount resumed>) = 0 [pid 5072] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6315] <... prctl resumed>) = 0 [pid 6306] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6315] setpgid(0, 0) = 0 [pid 6315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6315] write(3, "1000", 4) = 4 [pid 6315] close(3) = 0 [pid 6315] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6315] memfd_create("syzkaller", 0) = 3 [pid 6315] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6307] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6306] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6313] <... ioctl resumed>) = 0 [pid 6313] close(3) = 0 [pid 6313] mkdir("./file0", 0777) = 0 [pid 6313] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6307] creat("./file0/file0", 0202 [pid 6306] chdir("./file0" [pid 5072] <... openat resumed>) = 3 [pid 6307] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6306] <... chdir resumed>) = 0 [pid 5072] fstat(3, [pid 6307] exit_group(0 [pid 6306] ioctl(4, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6307] <... exit_group resumed>) = ? [pid 6306] <... ioctl resumed>) = 0 [pid 5072] getdents64(3, [ 175.011523][ T6311] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 175.022753][ T6307] overlayfs: upper fs does not support tmpfile. [ 175.025548][ T6313] loop0: detected capacity change from 0 to 8192 [ 175.032303][ T6307] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 175.046257][ T6307] overlayfs: failed to resolve './file0': -2 [ 175.052761][ T6311] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6307] +++ exited with 0 +++ [pid 6306] close(4 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6315] 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"..., 4194304 [pid 6306] <... close resumed>) = 0 [pid 5072] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6307, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 6306] mkdir("./file1", 000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6306] <... mkdir resumed>) = 0 [pid 5072] lstat("./101/binderfs", [pid 5069] <... restart_syscall resumed>) = 0 [pid 6306] mkdir("./bus", 000 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6306] <... mkdir resumed>) = 0 [ 175.076305][ T6311] REISERFS (device loop5): using ordered data mode [ 175.082847][ T6311] reiserfs: using flush barriers [ 175.089932][ T6311] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 175.106808][ T6311] REISERFS (device loop5): checking transaction log (loop5) [pid 5072] unlink("./101/binderfs" [pid 6315] <... write resumed>) = 4194304 [pid 6306] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... unlink resumed>) = 0 [pid 6315] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6315] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6315] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5072] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6315] close(3) = 0 [pid 6315] mkdir("./file0", 0777) = 0 [pid 6315] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 175.112376][ T6313] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 175.128776][ T6311] REISERFS (device loop5): Using r5 hash to sort names [ 175.134891][ T6315] loop3: detected capacity change from 0 to 8192 [ 175.137108][ T6306] overlayfs: upper fs needs to support d_type. [ 175.144875][ T6313] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 175.153497][ T6311] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 175.157886][ T6313] REISERFS (device loop0): using ordered data mode [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./102/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./102/binderfs") = 0 [pid 5069] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6306] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6311] <... mount resumed>) = 0 [pid 6306] creat("./file0/file0", 0202 [pid 6311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6311] chdir("./file0") = 0 [pid 6311] ioctl(4, LOOP_CLR_FD) = 0 [ 175.177796][ T6313] reiserfs: using flush barriers [ 175.183536][ T6306] overlayfs: upper fs does not support tmpfile. [ 175.190370][ T6306] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 175.198914][ T6306] overlayfs: failed to resolve './file0': -2 [ 175.205953][ T6311] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 175.213739][ T6315] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6311] close(4) = 0 [pid 6306] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6306] exit_group(0 [pid 6311] mkdir("./file1", 000 [pid 6306] <... exit_group resumed>) = ? [pid 6311] <... mkdir resumed>) = 0 [pid 6306] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6306, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5070] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6311] mkdir("./bus", 000 [ 175.228979][ T6313] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5070] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6311] <... mkdir resumed>) = 0 [pid 5070] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 6311] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./101/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./101/binderfs") = 0 [ 175.273420][ T6315] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 175.283007][ T6315] REISERFS (device loop3): using ordered data mode [ 175.290444][ T6315] reiserfs: using flush barriers [ 175.296673][ T6311] overlayfs: upper fs needs to support d_type. [ 175.297570][ T6313] REISERFS (device loop0): checking transaction log (loop0) [ 175.302870][ T6311] overlayfs: upper fs does not support tmpfile. [pid 5072] <... umount2 resumed>) = 0 [pid 5069] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./102/file0", [pid 5072] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5072] close(4) = 0 [pid 5069] fstat(4, [pid 5072] rmdir("./101/file0") = 0 [pid 5070] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5069] getdents64(4, [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] close(3 [pid 5069] getdents64(4, [pid 5072] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] rmdir("./101" [pid 5069] close(4 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] mkdir("./102", 0777 [pid 5069] rmdir("./102/file0" [pid 5072] <... mkdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] getdents64(3, [pid 5072] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] close(3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... close resumed>) = 0 [pid 5072] close(3 [pid 5069] rmdir("./102" [pid 5072] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] mkdir("./103", 0777) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6318 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6319 ./strace-static-x86_64: Process 6319 attached ./strace-static-x86_64: Process 6318 attached [ 175.318214][ T6315] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 175.318903][ T6313] REISERFS (device loop0): Using r5 hash to sort names [ 175.346057][ T6315] REISERFS (device loop3): checking transaction log (loop3) [ 175.362039][ T6315] REISERFS (device loop3): Using r5 hash to sort names [pid 6318] chdir("./102" [pid 6319] chdir("./103" [pid 6318] <... chdir resumed>) = 0 [pid 6319] <... chdir resumed>) = 0 [pid 6318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6318] <... prctl resumed>) = 0 [pid 6319] <... prctl resumed>) = 0 [pid 6318] setpgid(0, 0 [pid 6319] setpgid(0, 0 [pid 6318] <... setpgid resumed>) = 0 [pid 6319] <... setpgid resumed>) = 0 [pid 6318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6318] <... openat resumed>) = 3 [pid 6319] <... openat resumed>) = 3 [pid 6319] write(3, "1000", 4 [pid 6318] write(3, "1000", 4 [pid 6319] <... write resumed>) = 4 [pid 6318] <... write resumed>) = 4 [pid 6319] close(3 [pid 6318] close(3 [pid 6319] <... close resumed>) = 0 [pid 6318] <... close resumed>) = 0 [pid 6319] symlink("/dev/binderfs", "./binderfs" [pid 6318] symlink("/dev/binderfs", "./binderfs" [pid 6319] <... symlink resumed>) = 0 [pid 6318] <... symlink resumed>) = 0 [ 175.375528][ T6311] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 175.384219][ T6315] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 175.395612][ T6313] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6319] memfd_create("syzkaller", 0) = 3 [pid 6318] memfd_create("syzkaller", 0 [pid 6319] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6318] <... memfd_create resumed>) = 3 [pid 6313] <... mount resumed>) = 0 [pid 6319] <... mmap resumed>) = 0x7f7f7af80000 [pid 6318] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6315] <... mount resumed>) = 0 [pid 6313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6318] <... mmap resumed>) = 0x7f7f7af80000 [pid 6315] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6313] <... openat resumed>) = 3 [pid 6311] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = 0 [pid 6315] <... openat resumed>) = 3 [pid 6313] chdir("./file0" [pid 5070] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6315] chdir("./file0" [pid 6313] <... chdir resumed>) = 0 [pid 6311] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6315] <... chdir resumed>) = 0 [pid 6313] ioctl(4, LOOP_CLR_FD [pid 6311] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] lstat("./101/file0", [pid 6315] ioctl(4, LOOP_CLR_FD [pid 6313] <... ioctl resumed>) = 0 [pid 6311] exit_group(0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6315] <... ioctl resumed>) = 0 [ 175.419252][ T6313] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 175.430401][ T6315] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 175.431655][ T6311] overlayfs: failed to resolve './file0': -2 [pid 6313] close(4 [pid 6311] <... exit_group resumed>) = ? [pid 5070] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6319] 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"..., 4194304 [pid 6318] 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"..., 4194304 [pid 6315] close(4 [pid 6313] <... close resumed>) = 0 [pid 6315] <... close resumed>) = 0 [pid 6313] mkdir("./file1", 000 [pid 6311] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6315] mkdir("./file1", 000 [pid 6313] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6315] <... mkdir resumed>) = 0 [pid 6313] mkdir("./bus", 000 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6311, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5070] <... openat resumed>) = 4 [pid 6315] mkdir("./bus", 000 [pid 6313] <... mkdir resumed>) = 0 [pid 5073] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(4, [pid 6315] <... mkdir resumed>) = 0 [pid 6313] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6315] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, [pid 5073] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] fstat(3, [pid 5070] getdents64(4, [pid 6319] <... write resumed>) = 4194304 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6319] munmap(0x7f7f7af80000, 4194304 [pid 5073] getdents64(3, [pid 5070] close(4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] <... close resumed>) = 0 [pid 6319] <... munmap resumed>) = 0 [pid 5073] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./101/file0" [pid 6319] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... rmdir resumed>) = 0 [pid 5073] lstat("./103/binderfs", [pid 5070] getdents64(3, [pid 6319] <... openat resumed>) = 4 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6319] ioctl(4, LOOP_SET_FD, 3 [pid 6318] <... write resumed>) = 4194304 [ 175.520358][ T6313] overlayfs: upper fs needs to support d_type. [ 175.529417][ T6315] overlayfs: upper fs needs to support d_type. [ 175.539091][ T6313] overlayfs: upper fs does not support tmpfile. [ 175.547675][ T6315] overlayfs: upper fs does not support tmpfile. [pid 5073] unlink("./103/binderfs" [pid 5070] close(3 [pid 5073] <... unlink resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5073] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./101") = 0 [pid 5070] mkdir("./102", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 6319] <... ioctl resumed>) = 0 [pid 6318] munmap(0x7f7f7af80000, 4194304 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 6319] close(3 [pid 6318] <... munmap resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6320 ./strace-static-x86_64: Process 6320 attached [pid 6320] chdir("./102" [pid 6318] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6319] <... close resumed>) = 0 [pid 6319] mkdir("./file0", 0777 [pid 6318] <... openat resumed>) = 4 [pid 6320] <... chdir resumed>) = 0 [pid 6320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6320] setpgid(0, 0) = 0 [pid 6320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6319] <... mkdir resumed>) = 0 [pid 6318] ioctl(4, LOOP_SET_FD, 3 [pid 6313] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 175.567371][ T6319] loop1: detected capacity change from 0 to 8192 [ 175.575005][ T6313] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 175.586019][ T6313] overlayfs: failed to resolve './file0': -2 [ 175.598983][ T6315] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6320] write(3, "1000", 4) = 4 [pid 6319] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6320] close(3) = 0 [pid 6320] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6320] memfd_create("syzkaller", 0) = 3 [pid 6320] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6318] <... ioctl resumed>) = 0 [pid 6313] creat("./file0/file0", 0202 [pid 6318] close(3 [pid 6315] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6313] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = 0 [pid 6318] <... close resumed>) = 0 [pid 6315] creat("./file0/file0", 0202 [pid 6313] exit_group(0 [pid 5073] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6318] mkdir("./file0", 0777 [pid 6315] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6313] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6318] <... mkdir resumed>) = 0 [pid 6315] exit_group(0 [pid 6313] +++ exited with 0 +++ [pid 6318] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6315] <... exit_group resumed>) = ? [pid 5073] lstat("./103/file0", [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6313, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 6315] +++ exited with 0 +++ [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6315, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] umount2("./101", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./101", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [ 175.615942][ T6318] loop4: detected capacity change from 0 to 8192 [ 175.624327][ T6315] overlayfs: failed to resolve './file0': -2 [ 175.631157][ T6319] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] umount2("./101/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 4 [pid 5071] lstat("./101/binderfs", [pid 5073] fstat(4, [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] unlink("./101/binderfs" [pid 5073] getdents64(4, [pid 5071] <... unlink resumed>) = 0 [pid 5068] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... openat resumed>) = 3 [pid 5073] close(4 [pid 5068] fstat(3, [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./103/file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6320] 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"..., 4194304 [pid 5073] close(3 [pid 5068] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./102/binderfs", [pid 5073] rmdir("./103" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5068] unlink("./102/binderfs" [pid 5073] mkdir("./104", 0777 [pid 5068] <... unlink resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [ 175.660684][ T6318] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 175.678516][ T6319] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 175.692037][ T6318] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 175.701903][ T6319] REISERFS (device loop1): using ordered data mode [ 175.710433][ T6318] REISERFS (device loop4): using ordered data mode [pid 5068] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6323 [ 175.718410][ T6319] reiserfs: using flush barriers ./strace-static-x86_64: Process 6323 attached [pid 6323] chdir("./104") = 0 [pid 6323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6323] setpgid(0, 0) = 0 [pid 6323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6323] write(3, "1000", 4) = 4 [pid 6323] close(3) = 0 [pid 6323] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6323] memfd_create("syzkaller", 0) = 3 [pid 6323] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 175.741824][ T6319] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 175.769948][ T6318] reiserfs: using flush barriers [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./101/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./101/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./101/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 6320] <... write resumed>) = 4194304 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5071] getdents64(4, [pid 5068] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./101/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [ 175.804120][ T6318] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 175.839717][ T6319] REISERFS (device loop1): checking transaction log (loop1) [pid 5071] close(3) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./101") = 0 [pid 5071] mkdir("./102", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] lstat("./102/file0", [pid 5071] close(3) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6324 ./strace-static-x86_64: Process 6324 attached [pid 6324] chdir("./102") = 0 [pid 6324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6324] setpgid(0, 0) = 0 [pid 6324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6324] write(3, "1000", 4) = 4 [pid 5068] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6324] close(3) = 0 [pid 6324] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6323] 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"..., 4194304 [pid 6324] memfd_create("syzkaller", 0) = 3 [pid 6324] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6324] <... mmap resumed>) = 0x7f7f7af80000 [ 175.848014][ T6318] REISERFS (device loop4): checking transaction log (loop4) [ 175.856744][ T6319] REISERFS (device loop1): Using r5 hash to sort names [ 175.864916][ T6318] REISERFS (device loop4): Using r5 hash to sort names [ 175.872147][ T6318] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 175.891115][ T6319] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5068] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6320] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6320] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6320] ioctl(4, LOOP_SET_FD, 3 [pid 6319] <... mount resumed>) = 0 [pid 6318] <... mount resumed>) = 0 [pid 5068] fstat(4, [pid 6319] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6318] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6319] <... openat resumed>) = 3 [pid 6318] <... openat resumed>) = 3 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6319] chdir("./file0" [pid 6318] chdir("./file0" [pid 5068] getdents64(4, [pid 6319] <... chdir resumed>) = 0 [pid 6318] <... chdir resumed>) = 0 [pid 6319] ioctl(4, LOOP_CLR_FD [pid 6318] ioctl(4, LOOP_CLR_FD [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6319] <... ioctl resumed>) = 0 [pid 6318] <... ioctl resumed>) = 0 [pid 5068] getdents64(4, [pid 6319] close(4 [pid 6318] close(4 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6319] <... close resumed>) = 0 [pid 6318] <... close resumed>) = 0 [pid 6320] <... ioctl resumed>) = 0 [pid 6319] mkdir("./file1", 000 [pid 6318] mkdir("./file1", 000 [pid 5068] close(4 [pid 6320] close(3 [pid 6319] <... mkdir resumed>) = 0 [pid 6318] <... mkdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 6323] <... write resumed>) = 4194304 [pid 6320] <... close resumed>) = 0 [pid 6319] mkdir("./bus", 000 [pid 6320] mkdir("./file0", 0777) = 0 [pid 6320] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6318] mkdir("./bus", 000 [pid 5068] rmdir("./102/file0" [pid 6319] <... mkdir resumed>) = 0 [pid 6318] <... mkdir resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6323] munmap(0x7f7f7af80000, 4194304 [pid 6319] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6318] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [ 175.904275][ T6318] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 175.914305][ T6319] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 175.920138][ T6320] loop2: detected capacity change from 0 to 8192 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./102") = 0 [pid 5068] mkdir("./103", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6323] <... munmap resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6323] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 6323] <... openat resumed>) = 4 [pid 5068] <... close resumed>) = 0 [pid 6323] ioctl(4, LOOP_SET_FD, 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6326 ./strace-static-x86_64: Process 6326 attached [pid 6326] chdir("./103") = 0 [pid 6326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6326] setpgid(0, 0 [pid 6323] <... ioctl resumed>) = 0 [ 175.973631][ T6320] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 175.973929][ T6319] overlayfs: upper fs needs to support d_type. [ 175.993469][ T6318] overlayfs: upper fs needs to support d_type. [ 176.002788][ T6318] overlayfs: upper fs does not support tmpfile. [ 176.013851][ T6323] loop5: detected capacity change from 0 to 8192 [pid 6326] <... setpgid resumed>) = 0 [pid 6326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6323] close(3 [pid 6326] <... openat resumed>) = 3 [pid 6323] <... close resumed>) = 0 [pid 6326] write(3, "1000", 4 [pid 6323] mkdir("./file0", 0777 [pid 6326] <... write resumed>) = 4 [pid 6323] <... mkdir resumed>) = 0 [pid 6326] close(3 [pid 6323] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6326] <... close resumed>) = 0 [ 176.034493][ T6319] overlayfs: upper fs does not support tmpfile. [ 176.035571][ T6318] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 176.042166][ T6319] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 176.048519][ T6320] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 176.056268][ T6319] overlayfs: failed to resolve './file0': -2 [pid 6326] symlink("/dev/binderfs", "./binderfs" [pid 6324] 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"..., 4194304 [pid 6326] <... symlink resumed>) = 0 [pid 6319] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6318] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6326] memfd_create("syzkaller", 0) = 3 [pid 6326] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6319] creat("./file0/file0", 0202 [pid 6318] creat("./file0/file0", 0202 [pid 6319] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6318] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6319] exit_group(0) = ? [pid 6318] exit_group(0 [pid 6319] +++ exited with 0 +++ [pid 6318] <... exit_group resumed>) = ? [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6319, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 176.081536][ T6323] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 176.084363][ T6318] overlayfs: failed to resolve './file0': -2 [ 176.101506][ T6320] REISERFS (device loop2): using ordered data mode [ 176.108697][ T6320] reiserfs: using flush barriers [pid 6318] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6318, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(3, [pid 5072] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 5072] fstat(3, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] lstat("./103/binderfs", [pid 5072] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] unlink("./103/binderfs" [pid 5072] lstat("./102/binderfs", [pid 5069] <... unlink resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] unlink("./102/binderfs") = 0 [ 176.121733][ T6320] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 176.138418][ T6323] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 176.149719][ T6323] REISERFS (device loop5): using ordered data mode [ 176.156404][ T6323] reiserfs: using flush barriers [ 176.162507][ T6323] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6326] 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"..., 4194304 [pid 6320] <... mount resumed>) = 0 [pid 6320] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6320] chdir("./file0") = 0 [pid 6320] ioctl(4, LOOP_CLR_FD) = 0 [pid 6320] close(4) = 0 [ 176.178985][ T6320] REISERFS (device loop2): checking transaction log (loop2) [ 176.187269][ T6320] REISERFS (device loop2): Using r5 hash to sort names [ 176.197016][ T6320] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 176.223523][ T6320] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6326] <... write resumed>) = 4194304 [pid 6320] mkdir("./file1", 000) = 0 [pid 6320] mkdir("./bus", 000) = 0 [pid 6326] munmap(0x7f7f7af80000, 4194304 [pid 6320] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6326] <... munmap resumed>) = 0 [pid 6324] <... write resumed>) = 4194304 [pid 6326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6326] ioctl(4, LOOP_SET_FD, 3 [pid 6324] munmap(0x7f7f7af80000, 4194304) = 0 [ 176.262491][ T6323] REISERFS (device loop5): checking transaction log (loop5) [ 176.278850][ T6320] overlayfs: upper fs needs to support d_type. [ 176.287692][ T6320] overlayfs: upper fs does not support tmpfile. [ 176.297945][ T6326] loop0: detected capacity change from 0 to 8192 [pid 6326] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6324] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6324] ioctl(4, LOOP_SET_FD, 3 [pid 6326] close(3 [pid 5072] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6326] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6326] mkdir("./file0", 0777 [pid 5072] lstat("./102/file0", [pid 6326] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6326] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5072] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(4, [pid 5072] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] fstat(4, [pid 5069] getdents64(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6320] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] getdents64(4, [pid 5069] close(4) = 0 [pid 5069] rmdir("./103/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./103") = 0 [pid 5069] mkdir("./104", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 6324] <... ioctl resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6324] close(3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6324] <... close resumed>) = 0 [ 176.307016][ T6323] REISERFS (device loop5): Using r5 hash to sort names [ 176.311090][ T6320] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 176.317881][ T6324] loop3: detected capacity change from 0 to 8192 [ 176.322758][ T6320] overlayfs: failed to resolve './file0': -2 [ 176.348358][ T6323] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] close(3 [pid 6324] mkdir("./file0", 0777 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... close resumed>) = 0 [pid 6324] <... mkdir resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6324] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6329 ./strace-static-x86_64: Process 6329 attached [pid 6320] creat("./file0/file0", 0202 [pid 5072] getdents64(4, [pid 6323] <... mount resumed>) = 0 [pid 6323] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6323] chdir("./file0") = 0 [pid 6323] ioctl(4, LOOP_CLR_FD) = 0 [pid 6323] close(4 [pid 6329] chdir("./104" [pid 6320] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [ 176.363243][ T6326] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 176.377529][ T6323] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 176.384839][ T6326] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 176.397516][ T6326] REISERFS (device loop0): using ordered data mode [pid 6329] <... chdir resumed>) = 0 [pid 6320] exit_group(0 [pid 5072] close(4 [pid 6329] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6320] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 6323] <... close resumed>) = 0 [pid 6323] mkdir("./file1", 000) = 0 [pid 6323] mkdir("./bus", 000) = 0 [pid 6323] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6329] <... prctl resumed>) = 0 [pid 6320] +++ exited with 0 +++ [pid 5072] rmdir("./102/file0" [pid 6329] setpgid(0, 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6320, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [ 176.397569][ T6324] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 176.406279][ T6326] reiserfs: using flush barriers [ 176.423960][ T6326] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 176.443269][ T6326] REISERFS (device loop0): checking transaction log (loop0) [ 176.444199][ T6323] overlayfs: upper fs needs to support d_type. [ 176.451703][ T6326] REISERFS (device loop0): Using r5 hash to sort names [pid 6329] <... setpgid resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./102/binderfs", [pid 6329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] getdents64(3, [pid 6329] <... openat resumed>) = 3 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6329] write(3, "1000", 4 [pid 5072] close(3 [pid 6329] <... write resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./102/binderfs") = 0 [pid 5070] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6329] close(3 [pid 5072] rmdir("./102" [pid 6329] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 6323] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6329] symlink("/dev/binderfs", "./binderfs" [pid 6323] creat("./file0/file0", 0202 [pid 5072] mkdir("./103", 0777 [pid 6329] <... symlink resumed>) = 0 [pid 6323] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6329] memfd_create("syzkaller", 0 [ 176.460384][ T6324] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 176.473751][ T6323] overlayfs: upper fs does not support tmpfile. [ 176.482447][ T6323] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 176.491895][ T6323] overlayfs: failed to resolve './file0': -2 [ 176.499564][ T6324] REISERFS (device loop3): using ordered data mode [ 176.506747][ T6324] reiserfs: using flush barriers [pid 6323] exit_group(0 [pid 5072] <... mkdir resumed>) = 0 [pid 6329] <... memfd_create resumed>) = 3 [pid 6323] <... exit_group resumed>) = ? [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6323] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6323, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5072] <... openat resumed>) = 3 [pid 6329] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] close(3 [pid 6326] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... close resumed>) = 0 [pid 6326] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6326] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 3 [pid 6326] chdir("./file0" [pid 5073] fstat(3, [pid 6326] <... chdir resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6331 [pid 6326] ioctl(4, LOOP_CLR_FD [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6326] <... ioctl resumed>) = 0 [pid 5073] getdents64(3, [pid 6326] close(4) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6326] mkdir("./file1", 000 [pid 5073] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6326] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6326] mkdir("./bus", 000) = 0 [pid 5073] lstat("./104/binderfs", [pid 6326] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 176.515711][ T6326] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 176.521299][ T6324] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 176.528882][ T6326] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] unlink("./104/binderfs"./strace-static-x86_64: Process 6331 attached [pid 6331] chdir("./103" [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6331] <... chdir resumed>) = 0 [pid 6331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6331] setpgid(0, 0) = 0 [pid 6331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6331] write(3, "1000", 4) = 4 [pid 6331] close(3) = 0 [pid 6331] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6329] 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"..., 4194304 [pid 6331] memfd_create("syzkaller", 0) = 3 [pid 6331] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 176.586992][ T6326] overlayfs: upper fs needs to support d_type. [ 176.600376][ T6326] overlayfs: upper fs does not support tmpfile. [ 176.622880][ T6326] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5073] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./104/file0", [pid 5070] lstat("./102/file0", [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 176.644116][ T6324] REISERFS (device loop3): checking transaction log (loop3) [ 176.656262][ T6326] overlayfs: failed to resolve './file0': -2 [pid 5070] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6331] 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"..., 4194304 [pid 6329] <... write resumed>) = 4194304 [pid 6326] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... openat resumed>) = 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6329] munmap(0x7f7f7af80000, 4194304 [pid 6326] creat("./file0/file0", 0202 [pid 5073] fstat(4, [pid 5070] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6329] <... munmap resumed>) = 0 [pid 6326] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 4 [pid 6329] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6326] exit_group(0 [pid 5073] getdents64(4, [pid 5070] fstat(4, [pid 6329] <... openat resumed>) = 4 [pid 6326] <... exit_group resumed>) = ? [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6329] ioctl(4, LOOP_SET_FD, 3 [pid 6326] +++ exited with 0 +++ [pid 5073] getdents64(4, [pid 5070] getdents64(4, [pid 6329] <... ioctl resumed>) = 0 [pid 6324] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6329] close(3 [pid 5073] close(4 [pid 6324] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] getdents64(4, [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6326, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6329] <... close resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6329] mkdir("./file0", 0777 [pid 6324] <... openat resumed>) = 3 [pid 5073] rmdir("./104/file0" [pid 5070] close(4 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6329] <... mkdir resumed>) = 0 [pid 6324] chdir("./file0" [pid 5073] <... rmdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6329] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6324] <... chdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5070] rmdir("./102/file0" [pid 5068] <... openat resumed>) = 3 [pid 6324] ioctl(4, LOOP_CLR_FD [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] fstat(3, [pid 6324] <... ioctl resumed>) = 0 [ 176.705554][ T6324] REISERFS (device loop3): Using r5 hash to sort names [ 176.712692][ T6324] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 176.727002][ T6324] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 176.733860][ T6329] loop1: detected capacity change from 0 to 8192 [pid 5073] close(3 [pid 5070] getdents64(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6331] <... write resumed>) = 4194304 [pid 6324] close(4 [pid 5073] <... close resumed>) = 0 [pid 6324] <... close resumed>) = 0 [pid 5073] rmdir("./104" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(3, [pid 6324] mkdir("./file1", 000 [pid 5073] <... rmdir resumed>) = 0 [pid 5070] close(3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6331] munmap(0x7f7f7af80000, 4194304 [pid 5073] mkdir("./105", 0777 [pid 6324] <... mkdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6331] <... munmap resumed>) = 0 [pid 6324] mkdir("./bus", 000 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] rmdir("./102" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6331] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6324] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... rmdir resumed>) = 0 [pid 5068] lstat("./103/binderfs", [pid 6331] <... openat resumed>) = 4 [pid 6324] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] <... openat resumed>) = 3 [pid 5070] mkdir("./103", 0777 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6331] ioctl(4, LOOP_SET_FD, 3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... mkdir resumed>) = 0 [pid 5068] unlink("./103/binderfs" [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5068] <... unlink resumed>) = 0 [pid 5073] close(3 [pid 5070] <... openat resumed>) = 3 [pid 5068] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [ 176.754765][ T6329] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 176.777953][ T6324] overlayfs: upper fs needs to support d_type. [ 176.778143][ T6331] loop4: detected capacity change from 0 to 8192 [ 176.786819][ T6324] overlayfs: upper fs does not support tmpfile. [ 176.798034][ T6324] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6331] <... ioctl resumed>) = 0 [pid 6324] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] close(3 [pid 6324] creat("./file0/file0", 0202 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6333 [pid 5070] <... close resumed>) = 0 [pid 6324] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6324] exit_group(0) = ? [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6334 ./strace-static-x86_64: Process 6334 attached ./strace-static-x86_64: Process 6333 attached [pid 6331] close(3 [pid 6324] +++ exited with 0 +++ [pid 6333] chdir("./105" [pid 6331] <... close resumed>) = 0 [pid 6331] mkdir("./file0", 0777 [pid 6333] <... chdir resumed>) = 0 [pid 6331] <... mkdir resumed>) = 0 [pid 6333] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6324, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 6333] <... prctl resumed>) = 0 [pid 6331] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6333] setpgid(0, 0 [pid 5071] umount2("./102", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6333] <... setpgid resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./102", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... openat resumed>) = 3 [pid 6333] <... openat resumed>) = 3 [pid 5071] fstat(3, [pid 6333] write(3, "1000", 4 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6334] chdir("./103" [pid 6333] <... write resumed>) = 4 [pid 5071] getdents64(3, [pid 6334] <... chdir resumed>) = 0 [pid 6333] close(3) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6333] symlink("/dev/binderfs", "./binderfs" [pid 5071] umount2("./102/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6333] <... symlink resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6333] memfd_create("syzkaller", 0 [ 176.806912][ T6329] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 176.807911][ T6324] overlayfs: failed to resolve './file0': -2 [ 176.825873][ T6329] REISERFS (device loop1): using ordered data mode [ 176.832418][ T6329] reiserfs: using flush barriers [ 176.841105][ T6329] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5071] lstat("./102/binderfs", [pid 6333] <... memfd_create resumed>) = 3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] unlink("./102/binderfs" [pid 6333] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6334] setpgid(0, 0) = 0 [pid 6334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6334] write(3, "1000", 4) = 4 [pid 6334] close(3) = 0 [pid 6334] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6334] memfd_create("syzkaller", 0) = 3 [pid 6334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 176.871709][ T6329] REISERFS (device loop1): checking transaction log (loop1) [ 176.881477][ T6331] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 176.895255][ T6329] REISERFS (device loop1): Using r5 hash to sort names [ 176.907510][ T6329] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6333] 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"..., 4194304 [pid 5068] <... umount2 resumed>) = 0 [pid 5068] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6329] <... mount resumed>) = 0 [ 176.953368][ T6331] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 176.962675][ T6331] REISERFS (device loop4): using ordered data mode [ 176.969554][ T6331] reiserfs: using flush barriers [ 176.976109][ T6331] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 176.993002][ T6329] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5068] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6329] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] close(4 [pid 6329] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = 0 [pid 6329] chdir("./file0" [pid 5071] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 6329] <... chdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6329] ioctl(4, LOOP_CLR_FD [pid 5071] lstat("./102/file0", [pid 5068] rmdir("./103/file0" [pid 6334] 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"..., 4194304 [pid 6329] <... ioctl resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./103") = 0 [pid 5068] mkdir("./104", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3 [pid 6333] <... write resumed>) = 4194304 [pid 6331] <... mount resumed>) = 0 [pid 6329] close(4 [pid 5071] umount2("./102/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [pid 6333] munmap(0x7f7f7af80000, 4194304 [pid 6331] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6329] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6333] <... munmap resumed>) = 0 [pid 6331] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./102/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6333] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6331] chdir("./file0" [pid 6329] mkdir("./file1", 000 [pid 5071] <... openat resumed>) = 4 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6336 [pid 6333] <... openat resumed>) = 4 [pid 6331] <... chdir resumed>) = 0 [pid 6329] <... mkdir resumed>) = 0 [ 177.003870][ T6331] REISERFS (device loop4): checking transaction log (loop4) [ 177.014093][ T6331] REISERFS (device loop4): Using r5 hash to sort names [ 177.030737][ T6331] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 177.043618][ T6331] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] fstat(4, [pid 6333] ioctl(4, LOOP_SET_FD, 3 [pid 6331] ioctl(4, LOOP_CLR_FD [pid 6329] mkdir("./bus", 000 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6336 attached [pid 6331] <... ioctl resumed>) = 0 [pid 6329] <... mkdir resumed>) = 0 [pid 5071] getdents64(4, [pid 6336] chdir("./104" [pid 6331] close(4 [pid 6329] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6336] <... chdir resumed>) = 0 [pid 6331] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 6336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6331] mkdir("./file1", 000 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6331] <... mkdir resumed>) = 0 [pid 5071] close(4 [pid 6331] mkdir("./bus", 000 [pid 5071] <... close resumed>) = 0 [pid 6331] <... mkdir resumed>) = 0 [pid 5071] rmdir("./102/file0" [pid 6331] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... rmdir resumed>) = 0 [pid 6336] <... prctl resumed>) = 0 [pid 5071] getdents64(3, [pid 6336] setpgid(0, 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./102" [pid 6333] <... ioctl resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 6336] <... setpgid resumed>) = 0 [pid 6333] close(3 [pid 5071] mkdir("./103", 0777 [pid 6336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6333] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6336] <... openat resumed>) = 3 [pid 6333] mkdir("./file0", 0777 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6336] write(3, "1000", 4 [pid 6333] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6336] <... write resumed>) = 4 [pid 6333] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6336] close(3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6336] <... close resumed>) = 0 [pid 5071] close(3 [pid 6336] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... close resumed>) = 0 [pid 6336] <... symlink resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6336] memfd_create("syzkaller", 0) = 3 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6338 [pid 6336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 ./strace-static-x86_64: Process 6338 attached [pid 6338] chdir("./103") = 0 [pid 6338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6338] setpgid(0, 0) = 0 [pid 6338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6338] write(3, "1000", 4) = 4 [pid 6338] close(3) = 0 [pid 6338] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6338] memfd_create("syzkaller", 0) = 3 [pid 6338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 177.078349][ T6333] loop5: detected capacity change from 0 to 8192 [ 177.090253][ T6329] overlayfs: upper fs needs to support d_type. [ 177.097078][ T6331] overlayfs: upper fs needs to support d_type. [ 177.104329][ T6329] overlayfs: upper fs does not support tmpfile. [ 177.106249][ T6331] overlayfs: upper fs does not support tmpfile. [pid 6334] <... write resumed>) = 4194304 [ 177.152748][ T6331] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 177.160767][ T6333] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 177.163853][ T6329] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 177.182147][ T6329] overlayfs: failed to resolve './file0': -2 [pid 6334] munmap(0x7f7f7af80000, 4194304 [pid 6338] 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"..., 4194304 [pid 6334] <... munmap resumed>) = 0 [pid 6329] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6331] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6334] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6329] creat("./file0/file0", 0202 [pid 6334] <... openat resumed>) = 4 [pid 6334] ioctl(4, LOOP_SET_FD, 3 [pid 6329] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6329] exit_group(0) = ? [pid 6329] +++ exited with 0 +++ [pid 6331] creat("./file0/file0", 0202 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6329, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 6331] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6331] exit_group(0) = ? [pid 5069] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 6331] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6334] <... ioctl resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6331, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] lstat("./104/binderfs", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6334] close(3 [pid 5072] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] unlink("./104/binderfs" [pid 6334] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, [pid 5069] <... unlink resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6334] mkdir("./file0", 0777 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6336] 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"..., 4194304 [pid 6334] <... mkdir resumed>) = 0 [ 177.208000][ T6331] overlayfs: failed to resolve './file0': -2 [ 177.215404][ T6333] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 177.227534][ T6334] loop2: detected capacity change from 0 to 8192 [pid 5072] lstat("./103/binderfs", [pid 6334] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./103/binderfs") = 0 [ 177.263553][ T6333] REISERFS (device loop5): using ordered data mode [ 177.270124][ T6333] reiserfs: using flush barriers [ 177.278772][ T6333] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6338] <... write resumed>) = 4194304 [pid 6336] <... write resumed>) = 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 6338] munmap(0x7f7f7af80000, 4194304 [pid 6336] munmap(0x7f7f7af80000, 4194304 [pid 5069] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6338] <... munmap resumed>) = 0 [pid 6336] <... munmap resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6338] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6336] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] lstat("./104/file0", [pid 6338] <... openat resumed>) = 4 [pid 6336] <... openat resumed>) = 4 [ 177.304567][ T6334] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 177.326466][ T6333] REISERFS (device loop5): checking transaction log (loop5) [ 177.334605][ T6334] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 177.337699][ T6333] REISERFS (device loop5): Using r5 hash to sort names [ 177.345599][ T6334] REISERFS (device loop2): using ordered data mode [ 177.357181][ T6334] reiserfs: using flush barriers [ 177.363479][ T6333] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 177.363698][ T6334] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 177.376223][ T6333] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 177.402043][ T6338] loop3: detected capacity change from 0 to 8192 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6338] ioctl(4, LOOP_SET_FD, 3 [pid 6336] ioctl(4, LOOP_SET_FD, 3 [pid 6333] <... mount resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6333] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5072] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6333] chdir("./file0") = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6333] ioctl(4, LOOP_CLR_FD) = 0 [pid 5072] lstat("./103/file0", [pid 6333] close(4) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6333] mkdir("./file1", 000) = 0 [pid 5072] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6333] mkdir("./bus", 000) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6333] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./103/file0") = 0 [pid 5069] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./103") = 0 [pid 5072] mkdir("./104", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6340 ./strace-static-x86_64: Process 6340 attached [pid 6340] chdir("./104") = 0 [pid 6340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6340] setpgid(0, 0) = 0 [pid 6340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6340] write(3, "1000", 4) = 4 [pid 6340] close(3) = 0 [pid 6340] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6340] memfd_create("syzkaller", 0) = 3 [pid 6340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./104/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./104") = 0 [pid 5069] mkdir("./105", 0777 [pid 6333] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... mkdir resumed>) = 0 [pid 6333] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6333] exit_group(0) = ? [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6338] <... ioctl resumed>) = 0 [pid 6336] <... ioctl resumed>) = 0 [pid 6336] close(3 [pid 6338] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6341 [pid 6336] <... close resumed>) = 0 [pid 6338] <... close resumed>) = 0 [pid 6336] mkdir("./file0", 0777 [pid 6338] mkdir("./file0", 0777) = 0 [pid 6333] +++ exited with 0 +++ [pid 6336] <... mkdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6333, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6338] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6336] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 6341 attached [pid 5073] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 6341] chdir("./105" [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6341] <... chdir resumed>) = 0 [pid 5073] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6341] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6341] <... prctl resumed>) = 0 [pid 5073] lstat("./105/binderfs", [pid 6341] setpgid(0, 0 [ 177.408630][ T6336] loop0: detected capacity change from 0 to 8192 [ 177.415873][ T6333] overlayfs: upper fs needs to support d_type. [ 177.422094][ T6333] overlayfs: upper fs does not support tmpfile. [ 177.431521][ T6333] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 177.443862][ T6333] overlayfs: failed to resolve './file0': -2 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6341] <... setpgid resumed>) = 0 [pid 5073] unlink("./105/binderfs" [pid 6341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] <... unlink resumed>) = 0 [pid 6341] write(3, "1000", 4 [pid 5073] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6341] <... write resumed>) = 4 [pid 6341] close(3) = 0 [pid 6341] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6341] memfd_create("syzkaller", 0) = 3 [pid 6341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 177.479613][ T6338] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 177.493009][ T6336] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6341] 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"..., 4194304 [ 177.568318][ T6338] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 177.578323][ T6334] REISERFS (device loop2): checking transaction log (loop2) [ 177.586224][ T6336] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 177.609532][ T6338] REISERFS (device loop3): using ordered data mode [pid 6340] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./105/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./105") = 0 [pid 5073] mkdir("./106", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6344 [pid 6341] <... write resumed>) = 4194304 [pid 6341] munmap(0x7f7f7af80000, 4194304./strace-static-x86_64: Process 6344 attached ) = 0 [pid 6344] chdir("./106" [pid 6341] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6344] <... chdir resumed>) = 0 [pid 6341] <... openat resumed>) = 4 [pid 6344] prctl(PR_SET_PDEATHSIG, SIGKILL [ 177.614423][ T6334] REISERFS (device loop2): Using r5 hash to sort names [ 177.624178][ T6336] REISERFS (device loop0): using ordered data mode [ 177.631092][ T6336] reiserfs: using flush barriers [ 177.646306][ T6338] reiserfs: using flush barriers [ 177.648210][ T6334] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6341] ioctl(4, LOOP_SET_FD, 3 [pid 6344] <... prctl resumed>) = 0 [pid 6344] setpgid(0, 0) = 0 [pid 6344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6344] write(3, "1000", 4) = 4 [pid 6344] close(3) = 0 [pid 6344] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6344] memfd_create("syzkaller", 0) = 3 [pid 6344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6341] <... ioctl resumed>) = 0 [pid 6341] close(3) = 0 [ 177.656410][ T6341] loop1: detected capacity change from 0 to 8192 [ 177.677939][ T6336] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 177.696019][ T6338] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6341] mkdir("./file0", 0777) = 0 [pid 6341] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6340] <... write resumed>) = 4194304 [pid 6340] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6340] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6334] <... mount resumed>) = 0 [pid 6334] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6340] <... openat resumed>) = 4 [pid 6340] ioctl(4, LOOP_SET_FD, 3 [pid 6334] <... openat resumed>) = 3 [pid 6334] chdir("./file0") = 0 [pid 6334] ioctl(4, LOOP_CLR_FD) = 0 [ 177.712537][ T6334] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 177.722674][ T6341] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 177.722974][ T6336] REISERFS (device loop0): checking transaction log (loop0) [ 177.753238][ T6338] REISERFS (device loop3): checking transaction log (loop3) [ 177.754298][ T6340] loop4: detected capacity change from 0 to 8192 [pid 6334] close(4 [pid 6344] 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"..., 4194304 [pid 6340] <... ioctl resumed>) = 0 [pid 6340] close(3 [pid 6334] <... close resumed>) = 0 [pid 6334] mkdir("./file1", 000) = 0 [pid 6334] mkdir("./bus", 000) = 0 [ 177.767536][ T6341] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 177.770149][ T6338] REISERFS (device loop3): Using r5 hash to sort names [ 177.776942][ T6341] REISERFS (device loop1): using ordered data mode [ 177.799798][ T6336] REISERFS (device loop0): Using r5 hash to sort names [pid 6334] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6340] <... close resumed>) = 0 [pid 6340] mkdir("./file0", 0777 [pid 6336] <... mount resumed>) = 0 [pid 6340] <... mkdir resumed>) = 0 [pid 6336] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 177.807120][ T6336] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 177.807298][ T6334] overlayfs: upper fs needs to support d_type. [ 177.819947][ T6336] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 177.836397][ T6338] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 177.850057][ T6338] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 177.852367][ T6341] reiserfs: using flush barriers [pid 6340] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6338] <... mount resumed>) = 0 [pid 6336] <... openat resumed>) = 3 [pid 6338] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6336] chdir("./file0" [pid 6338] <... openat resumed>) = 3 [pid 6338] chdir("./file0" [pid 6336] <... chdir resumed>) = 0 [pid 6338] <... chdir resumed>) = 0 [pid 6336] ioctl(4, LOOP_CLR_FD [pid 6338] ioctl(4, LOOP_CLR_FD [pid 6334] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6336] <... ioctl resumed>) = 0 [pid 6338] <... ioctl resumed>) = 0 [pid 6336] close(4 [pid 6338] close(4 [pid 6334] creat("./file0/file0", 0202 [pid 6336] <... close resumed>) = 0 [pid 6338] <... close resumed>) = 0 [pid 6338] mkdir("./file1", 000 [pid 6336] mkdir("./file1", 000 [pid 6334] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6338] <... mkdir resumed>) = 0 [pid 6336] <... mkdir resumed>) = 0 [pid 6334] exit_group(0 [ 177.860272][ T6334] overlayfs: upper fs does not support tmpfile. [ 177.871072][ T6334] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 177.880741][ T6334] overlayfs: failed to resolve './file0': -2 [ 177.893644][ T6340] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6338] mkdir("./bus", 000 [pid 6344] <... write resumed>) = 4194304 [pid 6338] <... mkdir resumed>) = 0 [pid 6336] mkdir("./bus", 000 [pid 6334] <... exit_group resumed>) = ? [pid 6338] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6336] <... mkdir resumed>) = 0 [pid 6334] +++ exited with 0 +++ [pid 6336] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6344] munmap(0x7f7f7af80000, 4194304) = 0 [ 177.910817][ T6341] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 177.931368][ T6340] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 177.941984][ T6336] overlayfs: upper fs needs to support d_type. [ 177.942762][ T6340] REISERFS (device loop4): using ordered data mode [ 177.948732][ T6338] overlayfs: upper fs needs to support d_type. [ 177.954881][ T6340] reiserfs: using flush barriers [pid 6344] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6334, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- [pid 6344] <... openat resumed>) = 4 [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6344] ioctl(4, LOOP_SET_FD, 3 [pid 5070] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6344] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6344] close(3) = 0 [pid 5070] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6344] mkdir("./file0", 0777 [pid 5070] <... openat resumed>) = 3 [pid 6344] <... mkdir resumed>) = 0 [ 177.968182][ T6341] REISERFS (device loop1): checking transaction log (loop1) [ 177.975655][ T6340] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 177.994247][ T6344] loop5: detected capacity change from 0 to 8192 [ 178.004750][ T6336] overlayfs: upper fs does not support tmpfile. [ 178.006052][ T6340] REISERFS (device loop4): checking transaction log (loop4) [pid 5070] fstat(3, [pid 6344] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [ 178.014132][ T6336] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 178.019428][ T6338] overlayfs: upper fs does not support tmpfile. [ 178.031893][ T6341] REISERFS (device loop1): Using r5 hash to sort names [ 178.041816][ T6340] REISERFS (device loop4): Using r5 hash to sort names [ 178.042045][ T6336] overlayfs: failed to resolve './file0': -2 [ 178.049447][ T6338] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./103/binderfs", [pid 6336] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6336] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6336] exit_group(0) = ? [pid 6336] +++ exited with 0 +++ [pid 6341] <... mount resumed>) = 0 [pid 6341] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6341] chdir("./file0") = 0 [pid 6341] ioctl(4, LOOP_CLR_FD) = 0 [pid 6341] close(4 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6336, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5070] unlink("./103/binderfs") = 0 [pid 5070] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./104/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./104/binderfs") = 0 [pid 5068] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6341] <... close resumed>) = 0 [pid 6341] mkdir("./file1", 000) = 0 [pid 6341] mkdir("./bus", 000) = 0 [ 178.056306][ T6341] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 178.062820][ T6340] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 178.076886][ T6341] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 178.089846][ T6338] overlayfs: failed to resolve './file0': -2 [ 178.103642][ T6344] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6341] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6340] <... mount resumed>) = 0 [pid 6340] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6338] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6338] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6338] exit_group(0) = ? [pid 6340] <... openat resumed>) = 3 [pid 6338] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6338, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [ 178.138618][ T6340] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 178.139875][ T6341] overlayfs: upper fs needs to support d_type. [ 178.148098][ T6344] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 178.163202][ T6344] REISERFS (device loop5): using ordered data mode [ 178.169977][ T6344] reiserfs: using flush barriers [pid 6340] chdir("./file0" [pid 5071] umount2("./103", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./103", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6340] <... chdir resumed>) = 0 [pid 5071] fstat(3, [pid 6340] ioctl(4, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6340] <... ioctl resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./103/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6340] close(4 [pid 5071] lstat("./103/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./103/binderfs") = 0 [ 178.176998][ T6344] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 178.194396][ T6344] REISERFS (device loop5): checking transaction log (loop5) [ 178.202314][ T6341] overlayfs: upper fs does not support tmpfile. [ 178.204447][ T6344] REISERFS (device loop5): Using r5 hash to sort names [ 178.209262][ T6341] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 178.223986][ T6341] overlayfs: failed to resolve './file0': -2 [pid 5071] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6341] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6340] <... close resumed>) = 0 [pid 6341] creat("./file0/file0", 0202 [pid 6340] mkdir("./file1", 000 [pid 6341] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6341] exit_group(0 [pid 6340] <... mkdir resumed>) = 0 [pid 6341] <... exit_group resumed>) = ? [pid 6340] mkdir("./bus", 000 [pid 6344] <... mount resumed>) = 0 [pid 6344] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6341] +++ exited with 0 +++ [pid 6340] <... mkdir resumed>) = 0 [pid 6344] <... openat resumed>) = 3 [pid 6340] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6344] chdir("./file0" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6341, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5069] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6344] <... chdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6344] ioctl(4, LOOP_CLR_FD [pid 5069] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6344] <... ioctl resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6344] close(4 [pid 5069] lstat("./105/binderfs", [pid 6344] <... close resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6344] mkdir("./file1", 000 [pid 5069] unlink("./105/binderfs" [pid 6344] <... mkdir resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [ 178.230555][ T6344] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 178.243805][ T6344] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 178.267402][ T6340] overlayfs: upper fs needs to support d_type. [pid 6344] mkdir("./bus", 000 [pid 5069] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6344] <... mkdir resumed>) = 0 [ 178.289965][ T6340] overlayfs: upper fs does not support tmpfile. [ 178.299872][ T6344] overlayfs: upper fs needs to support d_type. [ 178.318875][ T6344] overlayfs: upper fs does not support tmpfile. [pid 6344] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./103/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 178.336549][ T6340] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 4 [pid 5068] lstat("./104/file0", [pid 5070] fstat(4, [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5068] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] close(4 [pid 5068] <... openat resumed>) = 4 [pid 5070] <... close resumed>) = 0 [pid 5068] fstat(4, [pid 5070] rmdir("./103/file0" [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5068] getdents64(4, [pid 5070] getdents64(3, [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] getdents64(4, [pid 5070] close(3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5068] close(4 [pid 5070] rmdir("./103" [pid 5068] <... close resumed>) = 0 [pid 6344] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6340] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... rmdir resumed>) = 0 [pid 5068] rmdir("./104/file0" [pid 5070] mkdir("./104", 0777 [pid 5068] <... rmdir resumed>) = 0 [pid 6344] creat("./file0/file0", 0202 [pid 6340] creat("./file0/file0", 0202 [pid 5070] <... mkdir resumed>) = 0 [pid 5068] getdents64(3, [pid 6344] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6340] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... umount2 resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6344] exit_group(0 [pid 6340] exit_group(0 [pid 5070] <... openat resumed>) = 3 [pid 5068] close(3 [pid 6344] <... exit_group resumed>) = ? [pid 6340] <... exit_group resumed>) = ? [pid 5071] <... umount2 resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6344] +++ exited with 0 +++ [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] <... close resumed>) = 0 [pid 6340] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6344, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5071] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./104" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 5069] lstat("./105/file0", [pid 5071] lstat("./103/file0", [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./103/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] openat(AT_FDCWD, "./103/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 5069] fstat(4, [pid 5071] fstat(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 5071] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5071] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6340, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] close(4 [pid 5073] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5071] close(4 [pid 5069] <... close resumed>) = 0 [pid 5068] mkdir("./105", 0777 [pid 5071] <... close resumed>) = 0 [pid 5069] rmdir("./105/file0" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... restart_syscall resumed>) = 0 [pid 5071] rmdir("./103/file0" [pid 5069] <... rmdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6348 [pid 5069] getdents64(3, [pid 5068] <... mkdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5071] getdents64(3, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] fstat(3, [pid 5072] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] close(3 [pid 5069] <... close resumed>) = 0 [pid 5073] getdents64(3, [pid 5072] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... close resumed>) = 0 [pid 5069] rmdir("./105" [pid 5068] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... openat resumed>) = 3 [pid 5071] rmdir("./103" [pid 5069] <... rmdir resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 5073] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] fstat(3, [pid 5071] <... rmdir resumed>) = 0 [pid 5069] mkdir("./106", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] mkdir("./104", 0777 [pid 5069] <... mkdir resumed>) = 0 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] lstat("./106/binderfs", [pid 5072] getdents64(3, [pid 5071] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] close(3./strace-static-x86_64: Process 6348 attached [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... openat resumed>) = 3 [pid 5068] <... close resumed>) = 0 [pid 5073] unlink("./106/binderfs" [pid 5072] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5071] close(3 [pid 5069] <... close resumed>) = 0 [pid 6348] chdir("./104" [pid 5071] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6348] <... chdir resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6349 [pid 6348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6350 [pid 6348] <... prctl resumed>) = 0 [ 178.390343][ T6344] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 178.410365][ T6340] overlayfs: failed to resolve './file0': -2 [ 178.420629][ T6344] overlayfs: failed to resolve './file0': -2 [pid 6348] setpgid(0, 0) = 0 [pid 6348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... unlink resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6348] <... openat resumed>) = 3 [pid 6348] write(3, "1000", 4 [pid 5073] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./104/binderfs", [pid 6348] <... write resumed>) = 4 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6351 ./strace-static-x86_64: Process 6351 attached ./strace-static-x86_64: Process 6349 attached [pid 6348] close(3) = 0 [pid 6348] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6348] memfd_create("syzkaller", 0 [pid 5072] unlink("./104/binderfs" [pid 6348] <... memfd_create resumed>) = 3 [pid 5072] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 6350 attached [pid 6351] chdir("./105" [pid 6348] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6351] <... chdir resumed>) = 0 [pid 6350] chdir("./104" [pid 6349] chdir("./106" [pid 6348] <... mmap resumed>) = 0x7f7f7af80000 [pid 6351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6350] <... chdir resumed>) = 0 [pid 6349] <... chdir resumed>) = 0 [pid 6351] <... prctl resumed>) = 0 [pid 6350] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6349] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6350] <... prctl resumed>) = 0 [pid 6351] setpgid(0, 0 [pid 6350] setpgid(0, 0 [pid 6349] <... prctl resumed>) = 0 [pid 6351] <... setpgid resumed>) = 0 [pid 6350] <... setpgid resumed>) = 0 [pid 6349] setpgid(0, 0 [pid 6351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6349] <... setpgid resumed>) = 0 [pid 6349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6350] <... openat resumed>) = 3 [pid 6351] <... openat resumed>) = 3 [pid 6350] write(3, "1000", 4 [pid 6349] <... openat resumed>) = 3 [pid 6351] write(3, "1000", 4 [pid 6350] <... write resumed>) = 4 [pid 6349] write(3, "1000", 4 [pid 6351] <... write resumed>) = 4 [pid 6350] close(3 [pid 6349] <... write resumed>) = 4 [pid 6351] close(3 [pid 6350] <... close resumed>) = 0 [pid 6349] close(3 [pid 6351] <... close resumed>) = 0 [pid 6350] symlink("/dev/binderfs", "./binderfs" [pid 6349] <... close resumed>) = 0 [pid 6351] symlink("/dev/binderfs", "./binderfs" [pid 6350] <... symlink resumed>) = 0 [pid 6349] symlink("/dev/binderfs", "./binderfs" [pid 6351] <... symlink resumed>) = 0 [pid 6349] <... symlink resumed>) = 0 [pid 6351] memfd_create("syzkaller", 0 [pid 6350] memfd_create("syzkaller", 0 [pid 6351] <... memfd_create resumed>) = 3 [pid 6350] <... memfd_create resumed>) = 3 [pid 6349] memfd_create("syzkaller", 0 [pid 6351] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6349] <... memfd_create resumed>) = 3 [pid 6351] <... mmap resumed>) = 0x7f7f7af80000 [pid 6350] <... mmap resumed>) = 0x7f7f7af80000 [pid 6349] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./106/file0", [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./104/file0", [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5072] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(4, [pid 5072] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] fstat(4, [pid 6351] 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"..., 4194304 [pid 6350] 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"..., 4194304 [pid 6349] 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"..., 4194304 [pid 5073] getdents64(4, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(4, [pid 5073] close(4 [pid 6348] 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"..., 4194304 [pid 5073] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] rmdir("./106/file0" [pid 5072] getdents64(4, [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] getdents64(3, [pid 5072] close(4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... close resumed>) = 0 [pid 5073] close(3 [pid 5072] rmdir("./104/file0" [pid 5073] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5073] rmdir("./106" [pid 5072] getdents64(3, [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] mkdir("./107", 0777 [pid 5072] close(3 [pid 5073] <... mkdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] rmdir("./104" [pid 5073] <... openat resumed>) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] <... rmdir resumed>) = 0 [pid 5073] close(3 [pid 5072] mkdir("./105", 0777 [pid 5073] <... close resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6352 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6353 ./strace-static-x86_64: Process 6352 attached ./strace-static-x86_64: Process 6353 attached [pid 6352] chdir("./107" [pid 6353] chdir("./105" [pid 6352] <... chdir resumed>) = 0 [pid 6353] <... chdir resumed>) = 0 [pid 6352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6352] <... prctl resumed>) = 0 [pid 6353] <... prctl resumed>) = 0 [pid 6352] setpgid(0, 0 [pid 6353] setpgid(0, 0 [pid 6352] <... setpgid resumed>) = 0 [pid 6353] <... setpgid resumed>) = 0 [pid 6352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6352] <... openat resumed>) = 3 [pid 6353] <... openat resumed>) = 3 [pid 6352] write(3, "1000", 4 [pid 6353] write(3, "1000", 4 [pid 6352] <... write resumed>) = 4 [pid 6353] <... write resumed>) = 4 [pid 6352] close(3 [pid 6353] close(3 [pid 6352] <... close resumed>) = 0 [pid 6353] <... close resumed>) = 0 [pid 6352] symlink("/dev/binderfs", "./binderfs" [pid 6353] symlink("/dev/binderfs", "./binderfs" [pid 6352] <... symlink resumed>) = 0 [pid 6353] <... symlink resumed>) = 0 [pid 6353] memfd_create("syzkaller", 0 [pid 6352] memfd_create("syzkaller", 0 [pid 6353] <... memfd_create resumed>) = 3 [pid 6352] <... memfd_create resumed>) = 3 [pid 6353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6353] <... mmap resumed>) = 0x7f7f7af80000 [pid 6352] <... mmap resumed>) = 0x7f7f7af80000 [pid 6351] <... write resumed>) = 4194304 [pid 6350] <... write resumed>) = 4194304 [pid 6349] <... write resumed>) = 4194304 [pid 6351] munmap(0x7f7f7af80000, 4194304 [pid 6349] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6350] munmap(0x7f7f7af80000, 4194304 [pid 6349] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6351] <... munmap resumed>) = 0 [pid 6350] <... munmap resumed>) = 0 [pid 6349] ioctl(4, LOOP_SET_FD, 3 [pid 6351] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6351] ioctl(4, LOOP_SET_FD, 3 [pid 6350] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 6350] ioctl(4, LOOP_SET_FD, 3 [pid 6348] <... write resumed>) = 4194304 [pid 6348] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6348] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6348] ioctl(4, LOOP_SET_FD, 3 [pid 6350] <... ioctl resumed>) = 0 [pid 6349] <... ioctl resumed>) = 0 [pid 6350] close(3 [pid 6349] close(3 [pid 6351] <... ioctl resumed>) = 0 [pid 6350] <... close resumed>) = 0 [pid 6349] <... close resumed>) = 0 [pid 6352] 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"..., 4194304 [pid 6351] close(3 [pid 6350] mkdir("./file0", 0777 [pid 6349] mkdir("./file0", 0777 [pid 6353] 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"..., 4194304 [pid 6348] <... ioctl resumed>) = 0 [pid 6351] <... close resumed>) = 0 [pid 6351] mkdir("./file0", 0777 [pid 6350] <... mkdir resumed>) = 0 [pid 6351] <... mkdir resumed>) = 0 [pid 6350] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6349] <... mkdir resumed>) = 0 [pid 6351] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 178.768028][ T6349] loop1: detected capacity change from 0 to 8192 [ 178.769694][ T6351] loop0: detected capacity change from 0 to 8192 [ 178.784897][ T6350] loop3: detected capacity change from 0 to 8192 [ 178.790940][ T6348] loop2: detected capacity change from 0 to 8192 [pid 6349] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6348] close(3) = 0 [ 178.808462][ T6351] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 178.823832][ T6351] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 178.825000][ T6350] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 178.834462][ T6351] REISERFS (device loop0): using ordered data mode [ 178.846049][ T6349] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6348] mkdir("./file0", 0777) = 0 [ 178.853564][ T6351] reiserfs: using flush barriers [ 178.872223][ T6351] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 178.889678][ T6351] REISERFS (device loop0): checking transaction log (loop0) [ 178.895312][ T6348] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 178.897160][ T6350] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 178.911591][ T6351] REISERFS (device loop0): Using r5 hash to sort names [ 178.919208][ T6350] REISERFS (device loop3): using ordered data mode [ 178.932689][ T6350] reiserfs: using flush barriers [ 178.933265][ T6349] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 178.938712][ T6348] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 178.946907][ T6349] REISERFS (device loop1): using ordered data mode [pid 6348] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6352] <... write resumed>) = 4194304 [ 178.956572][ T6350] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 178.962715][ T6349] reiserfs: using flush barriers [ 178.986555][ T6349] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 178.996235][ T6351] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6352] munmap(0x7f7f7af80000, 4194304 [pid 6353] <... write resumed>) = 4194304 [pid 6353] munmap(0x7f7f7af80000, 4194304 [pid 6352] <... munmap resumed>) = 0 [pid 6353] <... munmap resumed>) = 0 [ 179.003467][ T6348] REISERFS (device loop2): using ordered data mode [ 179.023209][ T6349] REISERFS (device loop1): checking transaction log (loop1) [ 179.031314][ T6348] reiserfs: using flush barriers [ 179.032074][ T6350] REISERFS (device loop3): checking transaction log (loop3) [ 179.038433][ T6351] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 179.045982][ T6349] REISERFS (device loop1): Using r5 hash to sort names [pid 6352] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6351] <... mount resumed>) = 0 [pid 6351] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6351] chdir("./file0") = 0 [pid 6351] ioctl(4, LOOP_CLR_FD) = 0 [pid 6351] close(4) = 0 [pid 6351] mkdir("./file1", 000) = 0 [pid 6351] mkdir("./bus", 000 [pid 6353] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6352] <... openat resumed>) = 4 [pid 6351] <... mkdir resumed>) = 0 [pid 6353] <... openat resumed>) = 4 [pid 6352] ioctl(4, LOOP_SET_FD, 3 [pid 6353] ioctl(4, LOOP_SET_FD, 3 [ 179.053148][ T6348] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 179.060650][ T6350] REISERFS (device loop3): Using r5 hash to sort names [ 179.087227][ T6352] loop5: detected capacity change from 0 to 8192 [ 179.089252][ T6351] overlayfs: upper fs needs to support d_type. [ 179.093967][ T6353] loop4: detected capacity change from 0 to 8192 [ 179.100065][ T6351] overlayfs: upper fs does not support tmpfile. [pid 6351] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6353] <... ioctl resumed>) = 0 [pid 6352] <... ioctl resumed>) = 0 [pid 6352] close(3) = 0 [pid 6352] mkdir("./file0", 0777) = 0 [pid 6352] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 179.106555][ T6349] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 179.118976][ T6348] REISERFS (device loop2): checking transaction log (loop2) [ 179.128297][ T6350] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 179.139079][ T6351] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 179.145744][ T6349] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6353] close(3) = 0 [pid 6353] mkdir("./file0", 0777) = 0 [pid 6353] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 179.161112][ T6350] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 179.163097][ T6348] REISERFS (device loop2): Using r5 hash to sort names [ 179.180841][ T6352] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 179.189307][ T6353] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 179.196043][ T6351] overlayfs: failed to resolve './file0': -2 [pid 6350] <... mount resumed>) = 0 [pid 6349] <... mount resumed>) = 0 [pid 6350] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [ 179.207596][ T6353] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 179.213258][ T6352] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 179.222413][ T6353] REISERFS (device loop4): using ordered data mode [ 179.222425][ T6353] reiserfs: using flush barriers [ 179.223509][ T6353] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6349] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6350] <... openat resumed>) = 3 [pid 6349] <... openat resumed>) = 3 [pid 6351] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6351] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6351] exit_group(0) = ? [pid 6351] +++ exited with 0 +++ [pid 6350] chdir("./file0" [pid 6349] chdir("./file0" [pid 6350] <... chdir resumed>) = 0 [pid 6349] <... chdir resumed>) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6351, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 6350] ioctl(4, LOOP_CLR_FD [pid 6349] ioctl(4, LOOP_CLR_FD [pid 6348] <... mount resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 6350] <... ioctl resumed>) = 0 [pid 6349] <... ioctl resumed>) = 0 [ 179.233513][ T6348] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 179.238948][ T6353] REISERFS (device loop4): checking transaction log (loop4) [ 179.244864][ T6348] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 179.260563][ T6353] REISERFS (device loop4): Using r5 hash to sort names [ 179.277164][ T6352] REISERFS (device loop5): using ordered data mode [ 179.279556][ T6353] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6350] close(4 [pid 6349] close(4 [pid 6350] <... close resumed>) = 0 [pid 6349] <... close resumed>) = 0 [pid 6350] mkdir("./file1", 000 [pid 6349] mkdir("./file1", 000 [pid 6353] <... mount resumed>) = 0 [pid 6350] <... mkdir resumed>) = 0 [pid 6349] <... mkdir resumed>) = 0 [pid 6348] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6350] mkdir("./bus", 000 [pid 6349] mkdir("./bus", 000 [pid 6353] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6350] <... mkdir resumed>) = 0 [pid 6349] <... mkdir resumed>) = 0 [pid 6353] <... openat resumed>) = 3 [pid 6350] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6349] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6348] <... openat resumed>) = 3 [ 179.315386][ T6353] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 179.325225][ T6352] reiserfs: using flush barriers [ 179.331957][ T6352] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 179.348868][ T6350] overlayfs: upper fs needs to support d_type. [ 179.348936][ T6352] REISERFS (device loop5): checking transaction log (loop5) [ 179.355647][ T6349] overlayfs: upper fs needs to support d_type. [pid 6353] chdir("./file0") = 0 [pid 6348] chdir("./file0" [pid 5068] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6353] ioctl(4, LOOP_CLR_FD [pid 6348] <... chdir resumed>) = 0 [pid 6353] <... ioctl resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6353] close(4 [pid 6348] ioctl(4, LOOP_CLR_FD [pid 5068] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6353] <... close resumed>) = 0 [pid 6348] <... ioctl resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [ 179.369624][ T6352] REISERFS (device loop5): Using r5 hash to sort names [ 179.380304][ T6350] overlayfs: upper fs does not support tmpfile. [ 179.387825][ T6352] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 179.401380][ T6350] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 179.413583][ T6349] overlayfs: upper fs does not support tmpfile. [pid 6353] mkdir("./file1", 000 [pid 6348] close(4 [pid 5068] fstat(3, [pid 6353] <... mkdir resumed>) = 0 [pid 6348] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6353] mkdir("./bus", 000 [pid 6348] mkdir("./file1", 000 [pid 5068] getdents64(3, [pid 6353] <... mkdir resumed>) = 0 [pid 6348] <... mkdir resumed>) = 0 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6353] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6348] mkdir("./bus", 000 [pid 5068] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6348] <... mkdir resumed>) = 0 [ 179.417522][ T6352] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 179.438146][ T6350] overlayfs: failed to resolve './file0': -2 [ 179.445734][ T6353] overlayfs: upper fs needs to support d_type. [ 179.452086][ T6353] overlayfs: upper fs does not support tmpfile. [ 179.453940][ T6349] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6348] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./105/binderfs", [pid 6350] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6350] creat("./file0/file0", 0202 [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6352] <... mount resumed>) = 0 [pid 6352] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6350] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] unlink("./105/binderfs" [pid 6353] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6352] <... openat resumed>) = 3 [pid 6350] exit_group(0 [pid 6353] creat("./file0/file0", 0202 [pid 6352] chdir("./file0" [pid 6350] <... exit_group resumed>) = ? [pid 5068] <... unlink resumed>) = 0 [pid 6353] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6352] <... chdir resumed>) = 0 [pid 6353] exit_group(0 [pid 6352] ioctl(4, LOOP_CLR_FD [pid 6350] +++ exited with 0 +++ [pid 6348] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 179.463124][ T6353] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 179.472675][ T6348] overlayfs: upper fs needs to support d_type. [ 179.481476][ T6353] overlayfs: failed to resolve './file0': -2 [ 179.488103][ T6348] overlayfs: upper fs does not support tmpfile. [ 179.495999][ T6348] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 179.505623][ T6348] overlayfs: failed to resolve './file0': -2 [pid 6353] <... exit_group resumed>) = ? [pid 6352] <... ioctl resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6350, si_uid=0, si_status=0, si_utime=0, si_stime=24 /* 0.24 s */} --- [pid 6353] +++ exited with 0 +++ [pid 6352] close(4 [pid 6348] creat("./file0/file0", 0202 [pid 6352] <... close resumed>) = 0 [pid 6349] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6348] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6353, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=25 /* 0.25 s */} --- [pid 6352] mkdir("./file1", 000 [pid 6349] creat("./file0/file0", 0202 [pid 6348] exit_group(0 [pid 6352] <... mkdir resumed>) = 0 [pid 6349] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6348] <... exit_group resumed>) = ? [pid 6352] mkdir("./bus", 000 [pid 6349] exit_group(0 [pid 6348] +++ exited with 0 +++ [pid 6352] <... mkdir resumed>) = 0 [pid 6349] <... exit_group resumed>) = ? [pid 6352] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6349] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6348, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- [pid 5072] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./105/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./105/binderfs" [pid 5071] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6349, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5071] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, [pid 5070] umount2("./104", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 5070] openat(AT_FDCWD, "./104", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... openat resumed>) = 3 [pid 5071] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(3, [pid 5069] fstat(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] lstat("./104/binderfs", [pid 5069] getdents64(3, [pid 5070] getdents64(3, [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 179.516348][ T6349] overlayfs: failed to resolve './file0': -2 [ 179.536567][ T6352] overlayfs: upper fs needs to support d_type. [ 179.542792][ T6352] overlayfs: upper fs does not support tmpfile. [pid 5071] unlink("./104/binderfs" [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... unlink resumed>) = 0 [pid 5070] umount2("./104/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./104/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./106/binderfs", [pid 5071] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] unlink("./104/binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... unlink resumed>) = 0 [pid 5069] unlink("./106/binderfs") = 0 [pid 5070] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6352] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... umount2 resumed>) = 0 [pid 6352] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6352] exit_group(0) = ? [pid 6352] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6352, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 179.578276][ T6352] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 179.589271][ T6352] overlayfs: failed to resolve './file0': -2 [pid 5073] lstat("./107/binderfs", [pid 5068] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./107/binderfs") = 0 [pid 5073] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./105/file0") = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./105") = 0 [pid 5068] mkdir("./106", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6360 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6360 attached [pid 5072] lstat("./105/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, [pid 6360] chdir("./106" [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 6360] <... chdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] getdents64(4, [pid 6360] <... prctl resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6360] setpgid(0, 0 [pid 5072] close(4 [pid 5070] <... umount2 resumed>) = 0 [pid 6360] <... setpgid resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 6360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] rmdir("./105/file0") = 0 [pid 6360] <... openat resumed>) = 3 [pid 5072] getdents64(3, [pid 6360] write(3, "1000", 4 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6360] <... write resumed>) = 4 [pid 6360] close(3 [pid 5072] close(3 [pid 5070] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6360] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 6360] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5072] rmdir("./105" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6360] memfd_create("syzkaller", 0 [pid 5072] <... rmdir resumed>) = 0 [pid 6360] <... memfd_create resumed>) = 3 [pid 5072] mkdir("./106", 0777 [pid 6360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... mkdir resumed>) = 0 [pid 6360] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5070] lstat("./104/file0", [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5070] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6361 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./104/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./104") = 0 [pid 5070] mkdir("./105", 0777) = 0 ./strace-static-x86_64: Process 6361 attached [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6361] chdir("./106" [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 6361] <... chdir resumed>) = 0 [pid 6361] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... close resumed>) = 0 [pid 6361] <... prctl resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6361] setpgid(0, 0) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6362 [pid 6361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6361] write(3, "1000", 4 [pid 5073] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 6361] <... write resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 6361] close(3 [pid 5073] lstat("./107/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6361] <... close resumed>) = 0 [pid 5073] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6362 attached [pid 6361] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(4, [pid 6362] chdir("./105" [pid 6361] <... symlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6362] <... chdir resumed>) = 0 [pid 5073] getdents64(4, [pid 6362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6361] memfd_create("syzkaller", 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6362] <... prctl resumed>) = 0 [pid 6361] <... memfd_create resumed>) = 3 [pid 5073] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6362] setpgid(0, 0 [pid 6361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... close resumed>) = 0 [pid 5069] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6362] <... setpgid resumed>) = 0 [pid 5073] rmdir("./107/file0" [pid 5071] lstat("./104/file0", [pid 6362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6361] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6362] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./106/file0", [pid 6362] write(3, "1000", 4 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] umount2("./104/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6362] <... write resumed>) = 4 [pid 5073] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6362] close(3 [pid 5073] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./104/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6362] <... close resumed>) = 0 [pid 5073] rmdir("./107" [pid 5071] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6362] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... rmdir resumed>) = 0 [pid 5071] fstat(4, [pid 5069] <... openat resumed>) = 4 [pid 6362] <... symlink resumed>) = 0 [pid 5073] mkdir("./108", 0777 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(4, [pid 6362] memfd_create("syzkaller", 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6362] <... memfd_create resumed>) = 3 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 6362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6362] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(4, [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] close(4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5071] <... close resumed>) = 0 [pid 5069] close(4 [pid 5073] <... close resumed>) = 0 [pid 5071] rmdir("./104/file0" [pid 5069] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... rmdir resumed>) = 0 [pid 5069] rmdir("./106/file0" [pid 5071] getdents64(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6363 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 5071] close(3 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] close(3 [pid 5071] rmdir("./104" [pid 5069] <... close resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] rmdir("./106" [pid 5071] mkdir("./105", 0777 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] mkdir("./107", 0777./strace-static-x86_64: Process 6363 attached [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... mkdir resumed>) = 0 [pid 6363] chdir("./108" [pid 6360] 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"..., 4194304 [pid 5071] <... openat resumed>) = 3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6363] <... chdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... openat resumed>) = 3 [pid 6363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6363] <... prctl resumed>) = 0 [pid 5071] close(3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6363] setpgid(0, 0 [pid 5071] <... close resumed>) = 0 [pid 5069] close(3 [pid 6363] <... setpgid resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... close resumed>) = 0 [pid 6363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6363] <... openat resumed>) = 3 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6364 [pid 6363] write(3, "1000", 4 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6365 [pid 6363] <... write resumed>) = 4 [pid 6363] close(3) = 0 [pid 6363] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6363] memfd_create("syzkaller", 0) = 3 [pid 6363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 6365 attached ) = 0x7f7f7af80000 ./strace-static-x86_64: Process 6364 attached [pid 6365] chdir("./107" [pid 6361] 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"..., 4194304 [pid 6365] <... chdir resumed>) = 0 [pid 6365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6365] setpgid(0, 0) = 0 [pid 6365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6365] write(3, "1000", 4 [pid 6364] chdir("./105" [pid 6365] <... write resumed>) = 4 [pid 6365] close(3) = 0 [pid 6365] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6364] <... chdir resumed>) = 0 [pid 6365] memfd_create("syzkaller", 0 [pid 6364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6365] <... memfd_create resumed>) = 3 [pid 6365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6364] <... prctl resumed>) = 0 [pid 6365] <... mmap resumed>) = 0x7f7f7af80000 [pid 6364] setpgid(0, 0) = 0 [pid 6364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6364] write(3, "1000", 4) = 4 [pid 6362] 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"..., 4194304 [pid 6364] close(3) = 0 [pid 6364] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6364] memfd_create("syzkaller", 0) = 3 [pid 6364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6360] <... write resumed>) = 4194304 [pid 6360] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6360] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6360] ioctl(4, LOOP_SET_FD, 3 [pid 6361] <... write resumed>) = 4194304 [pid 6361] munmap(0x7f7f7af80000, 4194304 [pid 6363] 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"..., 4194304 [pid 6361] <... munmap resumed>) = 0 [pid 6360] <... ioctl resumed>) = 0 [pid 6361] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6360] close(3 [pid 6361] <... openat resumed>) = 4 [pid 6360] <... close resumed>) = 0 [pid 6361] ioctl(4, LOOP_SET_FD, 3 [ 179.951391][ T6360] loop0: detected capacity change from 0 to 8192 [pid 6360] mkdir("./file0", 0777 [pid 6365] 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"..., 4194304 [pid 6360] <... mkdir resumed>) = 0 [pid 6361] <... ioctl resumed>) = 0 [pid 6360] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6361] close(3 [pid 6364] 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"..., 4194304 [pid 6361] <... close resumed>) = 0 [pid 6361] mkdir("./file0", 0777) = 0 [ 179.995134][ T6361] loop4: detected capacity change from 0 to 8192 [pid 6361] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6362] <... write resumed>) = 4194304 [ 180.034646][ T6360] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.049662][ T6361] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.082069][ T6360] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 6362] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6362] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6362] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6362] close(3) = 0 [pid 6362] mkdir("./file0", 0777) = 0 [pid 6362] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6365] <... write resumed>) = 4194304 [pid 6365] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6365] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6365] ioctl(4, LOOP_SET_FD, 3 [pid 6363] <... write resumed>) = 4194304 [ 180.093530][ T6361] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 180.102726][ T6361] REISERFS (device loop4): using ordered data mode [ 180.104775][ T6362] loop2: detected capacity change from 0 to 8192 [ 180.131366][ T6360] REISERFS (device loop0): using ordered data mode [ 180.138686][ T6365] loop1: detected capacity change from 0 to 8192 [pid 6363] munmap(0x7f7f7af80000, 4194304 [pid 6365] <... ioctl resumed>) = 0 [pid 6365] close(3) = 0 [pid 6365] mkdir("./file0", 0777) = 0 [ 180.147454][ T6362] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.153215][ T6361] reiserfs: using flush barriers [ 180.161185][ T6365] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.167559][ T6360] reiserfs: using flush barriers [pid 6365] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6364] <... write resumed>) = 4194304 [pid 6363] <... munmap resumed>) = 0 [pid 6364] munmap(0x7f7f7af80000, 4194304 [pid 6363] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6364] <... munmap resumed>) = 0 [pid 6363] <... openat resumed>) = 4 [pid 6364] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6363] ioctl(4, LOOP_SET_FD, 3 [pid 6364] <... openat resumed>) = 4 [ 180.179054][ T6361] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.189758][ T6362] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 180.200499][ T6360] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.208782][ T6362] REISERFS (device loop2): using ordered data mode [ 180.232311][ T6362] reiserfs: using flush barriers [ 180.238213][ T6363] loop5: detected capacity change from 0 to 8192 [pid 6364] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6364] close(3 [pid 6363] <... ioctl resumed>) = 0 [pid 6364] <... close resumed>) = 0 [pid 6363] close(3 [pid 6364] mkdir("./file0", 0777 [pid 6363] <... close resumed>) = 0 [ 180.245041][ T6364] loop3: detected capacity change from 0 to 8192 [ 180.251898][ T6365] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 180.254182][ T6362] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.261253][ T6365] REISERFS (device loop1): using ordered data mode [ 180.280322][ T6361] REISERFS (device loop4): checking transaction log (loop4) [ 180.283751][ T6365] reiserfs: using flush barriers [pid 6363] mkdir("./file0", 0777 [pid 6364] <... mkdir resumed>) = 0 [pid 6363] <... mkdir resumed>) = 0 [ 180.285108][ T6360] REISERFS (device loop0): checking transaction log (loop0) [ 180.296528][ T6361] REISERFS (device loop4): Using r5 hash to sort names [ 180.303376][ T6365] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.303712][ T6365] REISERFS (device loop1): checking transaction log (loop1) [ 180.312877][ T6361] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6364] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6363] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6361] <... mount resumed>) = 0 [pid 6361] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6361] chdir("./file0") = 0 [pid 6361] ioctl(4, LOOP_CLR_FD) = 0 [pid 6361] close(4) = 0 [pid 6361] mkdir("./file1", 000) = 0 [pid 6361] mkdir("./bus", 000) = 0 [ 180.328041][ T6362] REISERFS (device loop2): checking transaction log (loop2) [ 180.336477][ T6361] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 180.348351][ T6365] REISERFS (device loop1): Using r5 hash to sort names [ 180.372312][ T6360] REISERFS (device loop0): Using r5 hash to sort names [ 180.379552][ T6360] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 180.391785][ T6365] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 180.405680][ T6361] overlayfs: upper fs needs to support d_type. [ 180.406027][ T6364] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.411884][ T6361] overlayfs: upper fs does not support tmpfile. [ 180.426101][ T6363] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 180.431759][ T6361] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 180.452611][ T6361] overlayfs: failed to resolve './file0': -2 [ 180.459234][ T6362] REISERFS (device loop2): Using r5 hash to sort names [ 180.466406][ T6362] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 180.473842][ T6360] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 180.479189][ T6362] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6361] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6362] <... mount resumed>) = 0 [pid 6362] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6361] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6361] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6361] exit_group(0) = ? [pid 6361] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6361, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6362] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6362] chdir("./file0" [pid 5072] unlink("./106/binderfs" [pid 6362] <... chdir resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6362] ioctl(4, LOOP_CLR_FD [pid 6365] <... mount resumed>) = 0 [pid 6362] <... ioctl resumed>) = 0 [pid 6365] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6362] close(4 [pid 6365] <... openat resumed>) = 3 [pid 6362] <... close resumed>) = 0 [pid 6365] chdir("./file0" [ 180.497571][ T6364] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 180.505323][ T6363] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 180.507746][ T6365] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 180.529452][ T6364] REISERFS (device loop3): using ordered data mode [ 180.531461][ T6363] REISERFS (device loop5): using ordered data mode [ 180.537420][ T6364] reiserfs: using flush barriers [pid 6362] mkdir("./file1", 000 [pid 6365] <... chdir resumed>) = 0 [pid 6362] <... mkdir resumed>) = 0 [pid 6360] <... mount resumed>) = 0 [pid 6360] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6360] chdir("./file0") = 0 [pid 6360] ioctl(4, LOOP_CLR_FD) = 0 [pid 6360] close(4) = 0 [pid 6360] mkdir("./file1", 000) = 0 [pid 6360] mkdir("./bus", 000) = 0 [pid 6360] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6365] ioctl(4, LOOP_CLR_FD [pid 6362] mkdir("./bus", 000 [pid 6365] <... ioctl resumed>) = 0 [pid 6362] <... mkdir resumed>) = 0 [pid 6365] close(4 [pid 6362] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6365] <... close resumed>) = 0 [pid 6365] mkdir("./file1", 000) = 0 [pid 6365] mkdir("./bus", 000) = 0 [ 180.566739][ T6364] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.576287][ T6360] overlayfs: upper fs needs to support d_type. [ 180.592248][ T6363] reiserfs: using flush barriers [ 180.594955][ T6362] overlayfs: upper fs needs to support d_type. [ 180.607681][ T6365] overlayfs: upper fs needs to support d_type. [ 180.614555][ T6363] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 180.633376][ T6365] overlayfs: upper fs does not support tmpfile. [ 180.640235][ T6365] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 180.653372][ T6362] overlayfs: upper fs does not support tmpfile. [ 180.654930][ T6360] overlayfs: upper fs does not support tmpfile. [pid 6365] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./106/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./106") = 0 [pid 5072] mkdir("./107", 0777) = 0 [ 180.660175][ T6362] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 180.674436][ T6364] REISERFS (device loop3): checking transaction log (loop3) [ 180.696762][ T6362] overlayfs: failed to resolve './file0': -2 [ 180.700535][ T6360] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6362] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6362] creat("./file0/file0", 0202 [pid 5072] close(3 [pid 6362] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6362] exit_group(0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6372 [pid 6362] <... exit_group resumed>) = ? [pid 6362] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6362, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- ./strace-static-x86_64: Process 6372 attached [pid 5070] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6372] chdir("./107") = 0 [pid 6372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6372] <... prctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6372] setpgid(0, 0 [pid 5070] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6372] <... setpgid resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 6372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] fstat(3, [pid 6372] <... openat resumed>) = 3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6372] write(3, "1000", 4 [pid 5070] getdents64(3, [pid 6372] <... write resumed>) = 4 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6372] close(3 [pid 5070] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6372] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 180.718592][ T6365] overlayfs: failed to resolve './file0': -2 [ 180.727522][ T6363] REISERFS (device loop5): checking transaction log (loop5) [ 180.735052][ T6364] REISERFS (device loop3): Using r5 hash to sort names [pid 6372] symlink("/dev/binderfs", "./binderfs" [pid 5070] lstat("./105/binderfs", [pid 6372] <... symlink resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6372] memfd_create("syzkaller", 0 [pid 5070] unlink("./105/binderfs" [pid 6372] <... memfd_create resumed>) = 3 [pid 5070] <... unlink resumed>) = 0 [pid 6372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6372] <... mmap resumed>) = 0x7f7f7af80000 [pid 6365] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6365] creat("./file0/file0", 0202 [pid 6364] <... mount resumed>) = 0 [pid 6365] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6364] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6360] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6360] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6360] exit_group(0) = ? [pid 6364] <... openat resumed>) = 3 [pid 6365] exit_group(0 [pid 6364] chdir("./file0") = 0 [pid 6365] <... exit_group resumed>) = ? [pid 6364] ioctl(4, LOOP_CLR_FD [pid 6365] +++ exited with 0 +++ [pid 6364] <... ioctl resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6365, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6360] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6360, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5069] <... restart_syscall resumed>) = 0 [ 180.761128][ T6364] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 180.775442][ T6363] REISERFS (device loop5): Using r5 hash to sort names [ 180.782521][ T6363] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 180.785341][ T6364] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 180.797031][ T6360] overlayfs: failed to resolve './file0': -2 [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6364] close(4 [pid 5069] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] fstat(3, [pid 5068] <... openat resumed>) = 3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] fstat(3, [pid 5069] getdents64(3, [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] getdents64(3, [pid 5069] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6364] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6364] mkdir("./file1", 000 [pid 5069] lstat("./107/binderfs", [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] lstat("./106/binderfs", [pid 5069] unlink("./107/binderfs" [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6364] <... mkdir resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] unlink("./106/binderfs" [pid 5069] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... unlink resumed>) = 0 [pid 6364] mkdir("./bus", 000 [pid 5068] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6364] <... mkdir resumed>) = 0 [pid 6364] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = 0 [pid 6363] <... mount resumed>) = 0 [pid 5070] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6363] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6363] chdir("./file0") = 0 [pid 6363] ioctl(4, LOOP_CLR_FD [pid 6372] 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"..., 4194304 [pid 6363] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6363] close(4) = 0 [pid 5070] lstat("./105/file0", [ 180.856451][ T6363] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 180.878881][ T6364] overlayfs: upper fs needs to support d_type. [ 180.893584][ T6364] overlayfs: upper fs does not support tmpfile. [pid 6363] mkdir("./file1", 000) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6363] mkdir("./bus", 000) = 0 [pid 6363] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, [pid 6364] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6364] creat("./file0/file0", 0202 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6364] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./105/file0" [pid 6364] exit_group(0) = ? [pid 5070] <... rmdir resumed>) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./105") = 0 [pid 5070] mkdir("./106", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 6364] +++ exited with 0 +++ [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6364, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- [pid 5070] close(3 [pid 5071] umount2("./105", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./105", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./105/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6373 attached [pid 5071] lstat("./105/binderfs", [pid 6373] chdir("./106" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6373 [pid 5069] <... umount2 resumed>) = 0 [pid 5071] unlink("./105/binderfs") = 0 [pid 6373] <... chdir resumed>) = 0 [pid 5071] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6373] <... prctl resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6373] setpgid(0, 0) = 0 [pid 5069] lstat("./107/file0", [pid 6373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6373] write(3, "1000", 4 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6373] <... write resumed>) = 4 [pid 5068] <... umount2 resumed>) = 0 [pid 6373] close(3 [pid 5068] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6373] <... close resumed>) = 0 [pid 6373] symlink("/dev/binderfs", "./binderfs" [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./106/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6373] <... symlink resumed>) = 0 [ 180.934539][ T6364] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 180.943560][ T6364] overlayfs: failed to resolve './file0': -2 [ 180.950034][ T6363] overlayfs: upper fs needs to support d_type. [ 180.959449][ T6363] overlayfs: upper fs does not support tmpfile. [pid 6373] memfd_create("syzkaller", 0 [pid 5069] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./106/file0") = 0 [pid 6373] <... memfd_create resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6373] <... mmap resumed>) = 0x7f7f7af80000 [pid 5068] close(3) = 0 [pid 5068] rmdir("./106") = 0 [pid 5068] mkdir("./107", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6374 [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, ./strace-static-x86_64: Process 6374 attached [pid 6374] chdir("./107" [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6374] <... chdir resumed>) = 0 [pid 6374] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] getdents64(4, [pid 6374] <... prctl resumed>) = 0 [pid 6374] setpgid(0, 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6374] <... setpgid resumed>) = 0 [pid 6374] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] close(4 [pid 6374] write(3, "1000", 4) = 4 [pid 6374] close(3) = 0 [pid 6374] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6374] memfd_create("syzkaller", 0 [pid 5069] <... close resumed>) = 0 [pid 6374] <... memfd_create resumed>) = 3 [pid 6374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] rmdir("./107/file0" [pid 6374] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./107") = 0 [pid 5069] mkdir("./108", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [ 181.014811][ T6363] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 181.049108][ T6363] overlayfs: failed to resolve './file0': -2 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6372] <... write resumed>) = 4194304 [pid 6372] munmap(0x7f7f7af80000, 4194304 [pid 6373] 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"..., 4194304 [pid 6372] <... munmap resumed>) = 0 [pid 6363] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6375 [pid 6372] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6363] creat("./file0/file0", 0202 [pid 6372] <... openat resumed>) = 4 [pid 6363] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6372] ioctl(4, LOOP_SET_FD, 3 [pid 6363] exit_group(0./strace-static-x86_64: Process 6375 attached ) = ? [pid 5071] <... umount2 resumed>) = 0 [pid 6375] chdir("./108" [pid 6363] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6363, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5071] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6375] <... chdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] lstat("./105/file0", [pid 5073] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6375] setpgid(0, 0) = 0 [pid 5073] lstat("./108/binderfs", [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./108/binderfs" [pid 6375] <... openat resumed>) = 3 [pid 5073] <... unlink resumed>) = 0 [pid 5071] umount2("./105/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6375] write(3, "1000", 4) = 4 [pid 5071] openat(AT_FDCWD, "./105/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6375] close(3) = 0 [pid 5071] <... openat resumed>) = 4 [pid 6375] symlink("/dev/binderfs", "./binderfs" [pid 5071] fstat(4, [pid 6372] <... ioctl resumed>) = 0 [pid 6372] close(3) = 0 [pid 6375] <... symlink resumed>) = 0 [pid 6372] mkdir("./file0", 0777 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6375] memfd_create("syzkaller", 0 [pid 6372] <... mkdir resumed>) = 0 [pid 5071] getdents64(4, [pid 6375] <... memfd_create resumed>) = 3 [pid 6372] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 181.107159][ T6372] loop4: detected capacity change from 0 to 8192 [pid 6375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6375] <... mmap resumed>) = 0x7f7f7af80000 [pid 6373] <... write resumed>) = 4194304 [pid 5071] getdents64(4, [pid 6373] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6374] 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"..., 4194304 [pid 6373] <... munmap resumed>) = 0 [pid 5071] close(4 [pid 6373] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 6373] <... openat resumed>) = 4 [pid 5071] rmdir("./105/file0" [pid 6373] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... rmdir resumed>) = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./105") = 0 [pid 5071] mkdir("./106", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 6373] <... ioctl resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 6373] close(3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6373] <... close resumed>) = 0 [pid 6373] mkdir("./file0", 0777 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6377 [ 181.154018][ T6372] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 181.170661][ T6372] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 181.197908][ T6373] loop2: detected capacity change from 0 to 8192 [pid 6373] <... mkdir resumed>) = 0 [pid 6373] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 6377 attached [pid 6377] chdir("./106" [pid 6374] <... write resumed>) = 4194304 [pid 6377] <... chdir resumed>) = 0 [pid 6374] munmap(0x7f7f7af80000, 4194304 [pid 6377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6377] setpgid(0, 0) = 0 [pid 6374] <... munmap resumed>) = 0 [pid 6374] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6374] <... openat resumed>) = 4 [pid 6377] <... openat resumed>) = 3 [pid 6377] write(3, "1000", 4 [pid 6374] ioctl(4, LOOP_SET_FD, 3 [pid 6377] <... write resumed>) = 4 [pid 6377] close(3) = 0 [pid 6377] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6377] memfd_create("syzkaller", 0) = 3 [pid 6375] 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"..., 4194304 [pid 6377] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6374] <... ioctl resumed>) = 0 [ 181.241386][ T6373] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 181.244709][ T6372] REISERFS (device loop4): using ordered data mode [ 181.261250][ T6372] reiserfs: using flush barriers [ 181.269473][ T6374] loop0: detected capacity change from 0 to 8192 [ 181.278669][ T6373] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 6374] close(3) = 0 [pid 6374] mkdir("./file0", 0777 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./108/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./108" [pid 6374] <... mkdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [ 181.279055][ T6372] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 181.288380][ T6373] REISERFS (device loop2): using ordered data mode [ 181.310644][ T6373] reiserfs: using flush barriers [ 181.317353][ T6373] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6374] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] mkdir("./109", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6380 ./strace-static-x86_64: Process 6380 attached [ 181.336363][ T6373] REISERFS (device loop2): checking transaction log (loop2) [ 181.347940][ T6373] REISERFS (device loop2): Using r5 hash to sort names [ 181.355592][ T6373] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 181.369399][ T6374] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6380] chdir("./109") = 0 [pid 6377] 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"..., 4194304 [pid 6380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6373] <... mount resumed>) = 0 [pid 6380] <... prctl resumed>) = 0 [pid 6380] setpgid(0, 0) = 0 [pid 6380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6380] write(3, "1000", 4) = 4 [pid 6380] close(3 [ 181.384706][ T6373] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 181.394573][ T6374] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 181.404575][ T6374] REISERFS (device loop0): using ordered data mode [ 181.411215][ T6374] reiserfs: using flush barriers [ 181.418173][ T6372] REISERFS (device loop4): checking transaction log (loop4) [ 181.423479][ T6374] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6373] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6380] <... close resumed>) = 0 [pid 6377] <... write resumed>) = 4194304 [pid 6375] <... write resumed>) = 4194304 [pid 6373] <... openat resumed>) = 3 [pid 6377] munmap(0x7f7f7af80000, 4194304 [pid 6375] munmap(0x7f7f7af80000, 4194304 [pid 6373] chdir("./file0" [pid 6380] symlink("/dev/binderfs", "./binderfs" [pid 6377] <... munmap resumed>) = 0 [pid 6375] <... munmap resumed>) = 0 [pid 6373] <... chdir resumed>) = 0 [pid 6377] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6375] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6373] ioctl(4, LOOP_CLR_FD [pid 6377] <... openat resumed>) = 4 [pid 6375] <... openat resumed>) = 4 [pid 6373] <... ioctl resumed>) = 0 [pid 6377] ioctl(4, LOOP_SET_FD, 3 [pid 6375] ioctl(4, LOOP_SET_FD, 3 [pid 6373] close(4 [ 181.444329][ T6372] REISERFS (device loop4): Using r5 hash to sort names [ 181.452266][ T6372] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 181.454278][ T6377] loop3: detected capacity change from 0 to 8192 [ 181.466036][ T6372] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 181.481495][ T6374] REISERFS (device loop0): checking transaction log (loop0) [pid 6380] <... symlink resumed>) = 0 [pid 6375] <... ioctl resumed>) = 0 [pid 6373] <... close resumed>) = 0 [pid 6377] <... ioctl resumed>) = 0 [pid 6375] close(3 [pid 6373] mkdir("./file1", 000 [pid 6372] <... mount resumed>) = 0 [pid 6377] close(3 [pid 6375] <... close resumed>) = 0 [pid 6373] <... mkdir resumed>) = 0 [pid 6372] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6377] <... close resumed>) = 0 [pid 6375] mkdir("./file0", 0777 [pid 6373] mkdir("./bus", 000 [pid 6372] <... openat resumed>) = 3 [pid 6377] mkdir("./file0", 0777 [pid 6375] <... mkdir resumed>) = 0 [pid 6373] <... mkdir resumed>) = 0 [pid 6372] chdir("./file0" [pid 6380] memfd_create("syzkaller", 0 [pid 6377] <... mkdir resumed>) = 0 [pid 6375] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6373] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6372] <... chdir resumed>) = 0 [pid 6380] <... memfd_create resumed>) = 3 [pid 6377] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6372] ioctl(4, LOOP_CLR_FD) = 0 [pid 6372] close(4) = 0 [pid 6372] mkdir("./file1", 000 [pid 6380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6372] <... mkdir resumed>) = 0 [pid 6372] mkdir("./bus", 000) = 0 [pid 6372] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6380] <... mmap resumed>) = 0x7f7f7af80000 [ 181.483159][ T6375] loop1: detected capacity change from 0 to 8192 [ 181.497214][ T6374] REISERFS (device loop0): Using r5 hash to sort names [ 181.507061][ T6374] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 181.521275][ T6373] overlayfs: upper fs needs to support d_type. [ 181.525685][ T6374] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 181.528371][ T6373] overlayfs: upper fs does not support tmpfile. [pid 6374] <... mount resumed>) = 0 [ 181.537435][ T6372] overlayfs: upper fs needs to support d_type. [ 181.550185][ T6375] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 181.564344][ T6377] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 181.578219][ T6372] overlayfs: upper fs does not support tmpfile. [ 181.584825][ T6373] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6374] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6380] 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"..., 4194304 [pid 6374] chdir("./file0") = 0 [pid 6372] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6374] ioctl(4, LOOP_CLR_FD) = 0 [pid 6372] creat("./file0/file0", 0202 [pid 6373] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6374] close(4 [pid 6373] creat("./file0/file0", 0202 [pid 6372] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6374] <... close resumed>) = 0 [pid 6373] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6372] exit_group(0 [pid 6374] mkdir("./file1", 000 [pid 6373] exit_group(0 [pid 6372] <... exit_group resumed>) = ? [pid 6374] <... mkdir resumed>) = 0 [pid 6374] mkdir("./bus", 000 [pid 6373] <... exit_group resumed>) = ? [pid 6372] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6372, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 6374] <... mkdir resumed>) = 0 [pid 5072] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 181.586004][ T6372] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 181.596953][ T6375] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 181.601155][ T6372] overlayfs: failed to resolve './file0': -2 [ 181.609826][ T6377] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 181.616023][ T6373] overlayfs: failed to resolve './file0': -2 [ 181.632879][ T6375] REISERFS (device loop1): using ordered data mode [ 181.640431][ T6375] reiserfs: using flush barriers [pid 5072] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6374] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6373] +++ exited with 0 +++ [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./107/binderfs") = 0 [ 181.652824][ T6375] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 181.670900][ T6374] overlayfs: upper fs needs to support d_type. [ 181.677142][ T6377] REISERFS (device loop3): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 181.693705][ T6377] reiserfs: using flush barriers [pid 5072] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6373, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./106/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./106/binderfs") = 0 [ 181.704163][ T6377] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 181.711576][ T6374] overlayfs: upper fs does not support tmpfile. [pid 5070] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6380] <... write resumed>) = 4194304 [pid 6380] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6380] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./107/file0", [pid 6380] <... openat resumed>) = 4 [ 181.753840][ T6377] REISERFS (device loop3): checking transaction log (loop3) [ 181.768895][ T6377] REISERFS (device loop3): Using r5 hash to sort names [ 181.788126][ T6375] REISERFS (device loop1): checking transaction log (loop1) [pid 6380] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6380] <... ioctl resumed>) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./107/file0" [pid 6380] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./107" [pid 6380] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./108", 0777 [pid 6380] mkdir("./file0", 0777 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6380] <... mkdir resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6383 ./strace-static-x86_64: Process 6383 attached [pid 6383] chdir("./108") = 0 [pid 6383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6383] setpgid(0, 0) = 0 [pid 6383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6383] write(3, "1000", 4) = 4 [pid 6383] close(3) = 0 [pid 6383] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6383] memfd_create("syzkaller", 0 [ 181.801634][ T6380] loop5: detected capacity change from 0 to 8192 [ 181.805223][ T6374] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 181.826198][ T6375] REISERFS (device loop1): Using r5 hash to sort names [ 181.832469][ T6377] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6380] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6383] <... memfd_create resumed>) = 3 [pid 5070] <... umount2 resumed>) = 0 [pid 6383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5070] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6377] <... mount resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6377] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] lstat("./106/file0", [pid 6377] <... openat resumed>) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 181.847889][ T6375] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 181.851845][ T6377] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 181.871124][ T6380] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 181.874093][ T6374] overlayfs: failed to resolve './file0': -2 [ 181.886374][ T6380] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 6377] chdir("./file0" [pid 5070] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6377] <... chdir resumed>) = 0 [pid 6377] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6383] 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"..., 4194304 [pid 6377] <... ioctl resumed>) = 0 [pid 6375] <... mount resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6377] close(4 [pid 6375] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6374] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6375] <... openat resumed>) = 3 [pid 6375] chdir("./file0") = 0 [pid 6375] ioctl(4, LOOP_CLR_FD) = 0 [pid 6375] close(4) = 0 [pid 6375] mkdir("./file1", 000) = 0 [pid 6375] mkdir("./bus", 000) = 0 [ 181.901636][ T6380] REISERFS (device loop5): using ordered data mode [ 181.909271][ T6380] reiserfs: using flush barriers [ 181.914535][ T6375] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 181.923530][ T6380] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 181.941277][ T6380] REISERFS (device loop5): checking transaction log (loop5) [pid 6375] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... openat resumed>) = 4 [pid 6377] <... close resumed>) = 0 [pid 6374] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6377] mkdir("./file1", 000 [pid 6374] exit_group(0 [pid 6377] <... mkdir resumed>) = 0 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 6377] mkdir("./bus", 000 [pid 6374] <... exit_group resumed>) = ? [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6377] <... mkdir resumed>) = 0 [pid 6374] +++ exited with 0 +++ [pid 5070] getdents64(4, [pid 6377] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6374, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5070] close(4) = 0 [pid 5070] rmdir("./106/file0" [pid 5068] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 181.953935][ T6375] overlayfs: upper fs needs to support d_type. [ 181.960158][ T6375] overlayfs: upper fs does not support tmpfile. [ 181.969666][ T6380] REISERFS (device loop5): Using r5 hash to sort names [ 181.981310][ T6380] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 181.981462][ T6377] overlayfs: upper fs needs to support d_type. [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] close(3 [pid 5068] fstat(3, [pid 5070] <... close resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] rmdir("./106" [pid 5068] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./107/binderfs") = 0 [pid 5068] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./107", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6375] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6375] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6375] exit_group(0) = ? [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6385 [pid 6375] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6375, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5069] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./108/binderfs") = 0 [ 181.994894][ T6375] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 182.013015][ T6375] overlayfs: failed to resolve './file0': -2 [ 182.021221][ T6377] overlayfs: upper fs does not support tmpfile. [pid 5069] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6385 attached [pid 6385] chdir("./107") = 0 [pid 6385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6385] setpgid(0, 0) = 0 [pid 6385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6385] write(3, "1000", 4) = 4 [pid 6385] close(3) = 0 [pid 6385] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6385] memfd_create("syzkaller", 0) = 3 [pid 6385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 182.049248][ T6377] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 182.071144][ T6377] overlayfs: failed to resolve './file0': -2 [pid 6383] <... write resumed>) = 4194304 [pid 6383] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6383] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6383] ioctl(4, LOOP_SET_FD, 3 [pid 6380] <... mount resumed>) = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 6380] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6380] <... openat resumed>) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6380] chdir("./file0" [pid 5068] lstat("./107/file0", [pid 6380] <... chdir resumed>) = 0 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6380] ioctl(4, LOOP_CLR_FD) = 0 [pid 5068] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6383] <... ioctl resumed>) = 0 [pid 6380] close(4 [pid 6377] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6383] close(3 [pid 6380] <... close resumed>) = 0 [pid 6383] <... close resumed>) = 0 [pid 6380] mkdir("./file1", 000 [pid 6377] creat("./file0/file0", 0202 [pid 5068] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6383] mkdir("./file0", 0777 [pid 6380] <... mkdir resumed>) = 0 [pid 6377] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... openat resumed>) = 4 [pid 6383] <... mkdir resumed>) = 0 [pid 6383] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6380] mkdir("./bus", 000 [pid 6377] exit_group(0 [pid 5068] fstat(4, [pid 6380] <... mkdir resumed>) = 0 [pid 6377] <... exit_group resumed>) = ? [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6380] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6377] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6377, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [ 182.099649][ T6380] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 182.111573][ T6383] loop4: detected capacity change from 0 to 8192 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6385] 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"..., 4194304 [pid 5068] close(4) = 0 [pid 5071] umount2("./106", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./107/file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./106", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... rmdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5068] getdents64(3, [pid 5071] fstat(3, [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] close(3 [pid 5071] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] <... close resumed>) = 0 [pid 5071] umount2("./106/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] rmdir("./107" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./106/binderfs", [pid 5068] <... rmdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] mkdir("./108", 0777 [pid 5071] unlink("./106/binderfs" [pid 5068] <... mkdir resumed>) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] close(3) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6387 [pid 5069] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 6387 attached [pid 5069] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6387] chdir("./108" [pid 5069] lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6387] <... chdir resumed>) = 0 [pid 6387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6387] <... prctl resumed>) = 0 [ 182.159723][ T6380] overlayfs: upper fs needs to support d_type. [ 182.168333][ T6383] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.191311][ T6380] overlayfs: upper fs does not support tmpfile. [pid 6387] setpgid(0, 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6387] <... setpgid resumed>) = 0 [pid 6387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... openat resumed>) = 4 [pid 6387] <... openat resumed>) = 3 [pid 5069] fstat(4, [pid 6387] write(3, "1000", 4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6387] <... write resumed>) = 4 [pid 5069] getdents64(4, [pid 6387] close(3) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6387] symlink("/dev/binderfs", "./binderfs" [pid 5069] getdents64(4, [pid 6387] <... symlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6387] memfd_create("syzkaller", 0 [pid 5069] close(4 [pid 6387] <... memfd_create resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 6387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] rmdir("./108/file0" [pid 6387] <... mmap resumed>) = 0x7f7f7af80000 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./108" [pid 6385] <... write resumed>) = 4194304 [pid 6385] munmap(0x7f7f7af80000, 4194304 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] mkdir("./109", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6385] <... munmap resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6388 [ 182.249153][ T6383] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 182.264771][ T6380] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6385] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6385] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 6388 attached ) = 0 [pid 6385] close(3) = 0 [pid 6385] mkdir("./file0", 0777) = 0 [pid 6385] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6380] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6380] creat("./file0/file0", 0202 [pid 6388] chdir("./109" [pid 6380] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6388] <... chdir resumed>) = 0 [pid 6380] exit_group(0 [pid 6388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6380] <... exit_group resumed>) = ? [pid 6388] <... prctl resumed>) = 0 [pid 6380] +++ exited with 0 +++ [pid 6388] setpgid(0, 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6380, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [ 182.294386][ T6380] overlayfs: failed to resolve './file0': -2 [ 182.301174][ T6383] REISERFS (device loop4): using ordered data mode [ 182.308825][ T6383] reiserfs: using flush barriers [ 182.308913][ T6385] loop2: detected capacity change from 0 to 8192 [ 182.321373][ T6383] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6388] <... setpgid resumed>) = 0 [pid 6387] 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"..., 4194304 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5071] <... umount2 resumed>) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 5073] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./109/binderfs") = 0 [pid 5073] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6388] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6388] write(3, "1000", 4 [pid 5071] lstat("./106/file0", [pid 6388] <... write resumed>) = 4 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6388] close(3 [pid 5071] umount2("./106/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6388] <... close resumed>) = 0 [pid 6388] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6388] <... symlink resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./106/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6388] memfd_create("syzkaller", 0 [pid 5071] <... openat resumed>) = 4 [pid 6388] <... memfd_create resumed>) = 3 [pid 5071] fstat(4, [pid 6388] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6388] <... mmap resumed>) = 0x7f7f7af80000 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5073] <... umount2 resumed>) = 0 [ 182.347369][ T6385] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.354651][ T6383] REISERFS (device loop4): checking transaction log (loop4) [ 182.366921][ T6385] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5071] rmdir("./106/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5073] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 6387] <... write resumed>) = 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./106" [pid 5073] lstat("./109/file0", [pid 5071] <... rmdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] mkdir("./107", 0777 [pid 5073] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [ 182.417672][ T6385] REISERFS (device loop2): using ordered data mode [ 182.423944][ T6383] REISERFS (device loop4): Using r5 hash to sort names [ 182.424259][ T6385] reiserfs: using flush barriers [ 182.431657][ T6383] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 182.449216][ T6385] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5073] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... openat resumed>) = 3 [pid 5073] <... openat resumed>) = 4 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5073] fstat(4, [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] close(3 [pid 6387] munmap(0x7f7f7af80000, 4194304 [pid 5073] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6387] <... munmap resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6387] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6390 [pid 6387] <... openat resumed>) = 4 [pid 5073] close(4 [pid 6387] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... close resumed>) = 0 [pid 6388] 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"..., 4194304 [pid 5073] rmdir("./109/file0"./strace-static-x86_64: Process 6390 attached ) = 0 [pid 6390] chdir("./107" [pid 5073] getdents64(3, [pid 6390] <... chdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6390] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] close(3 [pid 6390] <... prctl resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6390] setpgid(0, 0 [pid 5073] rmdir("./109" [pid 6390] <... setpgid resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 6390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] mkdir("./110", 0777 [pid 6390] <... openat resumed>) = 3 [pid 5073] <... mkdir resumed>) = 0 [pid 6390] write(3, "1000", 4 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6390] <... write resumed>) = 4 [pid 5073] <... openat resumed>) = 3 [pid 6390] close(3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6390] <... close resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6390] symlink("/dev/binderfs", "./binderfs" [pid 5073] close(3 [pid 6390] <... symlink resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6390] memfd_create("syzkaller", 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6390] <... memfd_create resumed>) = 3 [pid 6390] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6391 [pid 6390] <... mmap resumed>) = 0x7f7f7af80000 [ 182.466011][ T6385] REISERFS (device loop2): checking transaction log (loop2) [ 182.489111][ T6385] REISERFS (device loop2): Using r5 hash to sort names [ 182.491259][ T6387] loop0: detected capacity change from 0 to 8192 [ 182.497426][ T6385] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! ./strace-static-x86_64: Process 6391 attached [pid 6388] <... write resumed>) = 4194304 [pid 6387] <... ioctl resumed>) = 0 [pid 6385] <... mount resumed>) = 0 [pid 6391] chdir("./110" [pid 6388] munmap(0x7f7f7af80000, 4194304 [pid 6387] close(3 [pid 6385] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6391] <... chdir resumed>) = 0 [pid 6388] <... munmap resumed>) = 0 [pid 6387] <... close resumed>) = 0 [pid 6385] <... openat resumed>) = 3 [pid 6391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6388] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6387] mkdir("./file0", 0777 [pid 6385] chdir("./file0" [pid 6391] <... prctl resumed>) = 0 [pid 6388] <... openat resumed>) = 4 [pid 6387] <... mkdir resumed>) = 0 [pid 6385] <... chdir resumed>) = 0 [pid 6391] setpgid(0, 0 [pid 6388] ioctl(4, LOOP_SET_FD, 3 [pid 6387] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6385] ioctl(4, LOOP_CLR_FD [pid 6391] <... setpgid resumed>) = 0 [pid 6383] <... mount resumed>) = 0 [pid 6391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6385] <... ioctl resumed>) = 0 [pid 6391] <... openat resumed>) = 3 [pid 6385] close(4 [ 182.543832][ T6385] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 182.544509][ T6383] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 182.570224][ T6388] loop1: detected capacity change from 0 to 8192 [pid 6391] write(3, "1000", 4 [pid 6388] <... ioctl resumed>) = 0 [pid 6385] <... close resumed>) = 0 [pid 6391] <... write resumed>) = 4 [pid 6390] 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"..., 4194304 [pid 6383] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6388] close(3 [pid 6383] <... openat resumed>) = 3 [pid 6385] mkdir("./file1", 000 [pid 6391] close(3 [pid 6388] <... close resumed>) = 0 [pid 6383] chdir("./file0" [pid 6391] <... close resumed>) = 0 [pid 6388] mkdir("./file0", 0777 [pid 6385] <... mkdir resumed>) = 0 [pid 6383] <... chdir resumed>) = 0 [pid 6388] <... mkdir resumed>) = 0 [pid 6383] ioctl(4, LOOP_CLR_FD [pid 6388] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6383] <... ioctl resumed>) = 0 [pid 6383] close(4) = 0 [pid 6391] symlink("/dev/binderfs", "./binderfs" [pid 6385] mkdir("./bus", 000 [pid 6383] mkdir("./file1", 000 [pid 6391] <... symlink resumed>) = 0 [pid 6385] <... mkdir resumed>) = 0 [pid 6391] memfd_create("syzkaller", 0 [ 182.583916][ T6387] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.596982][ T6387] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 182.606330][ T6387] REISERFS (device loop0): using ordered data mode [ 182.613012][ T6387] reiserfs: using flush barriers [ 182.619814][ T6387] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 182.636518][ T6387] REISERFS (device loop0): checking transaction log (loop0) [pid 6385] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6391] <... memfd_create resumed>) = 3 [pid 6383] <... mkdir resumed>) = 0 [pid 6391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 182.645175][ T6385] overlayfs: upper fs needs to support d_type. [ 182.651385][ T6385] overlayfs: upper fs does not support tmpfile. [ 182.660210][ T6387] REISERFS (device loop0): Using r5 hash to sort names [ 182.667350][ T6388] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.679818][ T6385] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6383] mkdir("./bus", 000) = 0 [pid 6391] 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"..., 4194304 [pid 6383] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6385] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6385] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6385] exit_group(0) = ? [pid 6385] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6385, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./107/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./107/binderfs") = 0 [ 182.683740][ T6387] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 182.698708][ T6385] overlayfs: failed to resolve './file0': -2 [ 182.708039][ T6383] overlayfs: upper fs needs to support d_type. [ 182.716462][ T6388] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 182.729238][ T6383] overlayfs: upper fs does not support tmpfile. [pid 5070] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6390] <... write resumed>) = 4194304 [pid 6390] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6390] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 182.761385][ T6388] REISERFS (device loop1): using ordered data mode [ 182.770120][ T6387] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 182.771425][ T6383] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 182.787059][ T6388] reiserfs: using flush barriers [pid 6390] ioctl(4, LOOP_SET_FD, 3 [pid 6391] <... write resumed>) = 4194304 [pid 6391] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6391] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6391] ioctl(4, LOOP_SET_FD, 3 [pid 6387] <... mount resumed>) = 0 [pid 6390] <... ioctl resumed>) = 0 [pid 6390] close(3 [pid 6387] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6387] chdir("./file0") = 0 [pid 6387] ioctl(4, LOOP_CLR_FD) = 0 [pid 6387] close(4 [pid 6390] <... close resumed>) = 0 [pid 6387] <... close resumed>) = 0 [pid 6387] mkdir("./file1", 000) = 0 [pid 6387] mkdir("./bus", 000) = 0 [pid 6390] mkdir("./file0", 0777 [pid 5070] <... umount2 resumed>) = 0 [pid 6391] <... ioctl resumed>) = 0 [pid 6387] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6391] close(3 [pid 6390] <... mkdir resumed>) = 0 [pid 6383] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6391] <... close resumed>) = 0 [pid 6390] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 182.809602][ T6390] loop3: detected capacity change from 0 to 8192 [ 182.814501][ T6391] loop5: detected capacity change from 0 to 8192 [ 182.829638][ T6383] overlayfs: failed to resolve './file0': -2 [ 182.842309][ T6388] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6383] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6391] mkdir("./file0", 0777 [pid 6383] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] lstat("./107/file0", [pid 6391] <... mkdir resumed>) = 0 [pid 6383] exit_group(0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6391] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6383] <... exit_group resumed>) = ? [pid 5070] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6383] +++ exited with 0 +++ [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6383, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [pid 5070] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, [ 182.859417][ T6387] overlayfs: upper fs needs to support d_type. [ 182.865731][ T6387] overlayfs: upper fs does not support tmpfile. [ 182.872628][ T6387] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 182.880230][ T6390] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.880586][ T6388] REISERFS (device loop1): checking transaction log (loop1) [pid 5072] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5072] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 5072] fstat(3, [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(4 [pid 5072] getdents64(3, [pid 5070] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] rmdir("./107/file0" [pid 5072] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, [pid 5072] lstat("./108/binderfs", [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] close(3 [pid 5072] unlink("./108/binderfs" [pid 5070] <... close resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] rmdir("./107" [pid 5072] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./108", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 6387] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 182.893967][ T6391] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 182.901957][ T6387] overlayfs: failed to resolve './file0': -2 [ 182.920629][ T6388] REISERFS (device loop1): Using r5 hash to sort names [ 182.927982][ T6388] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 182.941043][ T6388] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 182.950734][ T6390] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5070] close(3 [pid 6388] <... mount resumed>) = 0 [pid 6387] creat("./file0/file0", 0202 [pid 5070] <... close resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6388] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6387] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6388] <... openat resumed>) = 3 [pid 6387] exit_group(0 [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6396 [pid 6388] chdir("./file0" [pid 6387] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6396 attached [pid 6396] chdir("./108") = 0 [pid 6396] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6396] setpgid(0, 0 [pid 6388] <... chdir resumed>) = 0 [pid 6396] <... setpgid resumed>) = 0 [pid 6388] ioctl(4, LOOP_CLR_FD [pid 6387] +++ exited with 0 +++ [ 182.960031][ T6390] REISERFS (device loop3): using ordered data mode [ 182.966871][ T6390] reiserfs: using flush barriers [ 182.972878][ T6391] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 182.973160][ T6390] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 182.982440][ T6391] REISERFS (device loop5): using ordered data mode [ 183.005012][ T6391] reiserfs: using flush barriers [pid 6396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6387, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 6396] write(3, "1000", 4 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 6396] <... write resumed>) = 4 [pid 6388] <... ioctl resumed>) = 0 [pid 5068] <... restart_syscall resumed>) = 0 [pid 6396] close(3 [pid 6388] close(4 [pid 6396] <... close resumed>) = 0 [pid 6388] <... close resumed>) = 0 [ 183.012614][ T6391] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 183.027401][ T6390] REISERFS (device loop3): checking transaction log (loop3) [ 183.029039][ T6391] REISERFS (device loop5): checking transaction log (loop5) [ 183.049287][ T6391] REISERFS (device loop5): Using r5 hash to sort names [ 183.050975][ T6390] REISERFS (device loop3): Using r5 hash to sort names [pid 6396] symlink("/dev/binderfs", "./binderfs" [pid 6388] mkdir("./file1", 000 [pid 5068] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6396] <... symlink resumed>) = 0 [pid 6388] <... mkdir resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6396] memfd_create("syzkaller", 0 [pid 6388] mkdir("./bus", 000 [pid 5068] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6396] <... memfd_create resumed>) = 3 [pid 6388] <... mkdir resumed>) = 0 [pid 5068] <... openat resumed>) = 3 [pid 6396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6388] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... umount2 resumed>) = 0 [pid 5068] fstat(3, [pid 6396] <... mmap resumed>) = 0x7f7f7af80000 [pid 6391] <... mount resumed>) = 0 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6391] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./108/binderfs") = 0 [ 183.063519][ T6391] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 183.078956][ T6391] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 183.081141][ T6388] overlayfs: upper fs needs to support d_type. [ 183.088546][ T6390] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5068] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6391] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6391] chdir("./file0" [pid 5072] lstat("./108/file0", [pid 6391] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6391] ioctl(4, LOOP_CLR_FD [pid 5072] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6391] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6391] close(4 [ 183.107429][ T6390] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6391] <... close resumed>) = 0 [pid 6390] <... mount resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 6391] mkdir("./file1", 000 [pid 5072] fstat(4, [pid 6391] <... mkdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6391] mkdir("./bus", 000 [pid 5072] getdents64(4, [pid 6391] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6391] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 6390] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] rmdir("./108/file0" [pid 6390] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 6390] chdir("./file0" [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6390] <... chdir resumed>) = 0 [pid 5072] close(3 [pid 6390] ioctl(4, LOOP_CLR_FD [pid 6396] 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"..., 4194304 [pid 6390] <... ioctl resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 6390] close(4 [pid 5072] rmdir("./108" [pid 6390] <... close resumed>) = 0 [ 183.135813][ T6388] overlayfs: upper fs does not support tmpfile. [ 183.153690][ T6391] overlayfs: upper fs needs to support d_type. [ 183.171262][ T6391] overlayfs: upper fs does not support tmpfile. [pid 6390] mkdir("./file1", 000 [pid 5072] <... rmdir resumed>) = 0 [pid 6390] <... mkdir resumed>) = 0 [pid 5072] mkdir("./109", 0777 [pid 6390] mkdir("./bus", 000 [pid 5072] <... mkdir resumed>) = 0 [pid 6390] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6390] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] <... umount2 resumed>) = 0 [pid 5072] close(3 [pid 5068] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6397 [pid 5068] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 183.191905][ T6391] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 183.195372][ T6388] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 183.220307][ T6390] overlayfs: upper fs needs to support d_type. [ 183.228014][ T6390] overlayfs: upper fs does not support tmpfile. [ 183.236060][ T6391] overlayfs: failed to resolve './file0': -2 ./strace-static-x86_64: Process 6397 attached [pid 5068] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6397] chdir("./109" [pid 5068] <... openat resumed>) = 4 [pid 6397] <... chdir resumed>) = 0 [pid 6391] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] fstat(4, [pid 6397] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6391] creat("./file0/file0", 0202 [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6397] <... prctl resumed>) = 0 [pid 6391] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] getdents64(4, [pid 6397] setpgid(0, 0 [pid 6391] exit_group(0 [pid 6397] <... setpgid resumed>) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6391] <... exit_group resumed>) = ? [pid 5068] getdents64(4, [pid 6397] <... openat resumed>) = 3 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6397] write(3, "1000", 4 [pid 6391] +++ exited with 0 +++ [pid 6390] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] close(4 [pid 6397] <... write resumed>) = 4 [pid 6390] creat("./file0/file0", 0202 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6391, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 6397] close(3 [pid 6390] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... close resumed>) = 0 [pid 6397] <... close resumed>) = 0 [pid 6390] exit_group(0 [pid 5068] rmdir("./108/file0" [pid 6397] symlink("/dev/binderfs", "./binderfs" [pid 6390] <... exit_group resumed>) = ? [pid 6397] <... symlink resumed>) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6397] memfd_create("syzkaller", 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] getdents64(3, [pid 5073] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6397] <... memfd_create resumed>) = 3 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6390] +++ exited with 0 +++ [pid 6388] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... openat resumed>) = 3 [pid 5068] close(3 [pid 6397] <... mmap resumed>) = 0x7f7f7af80000 [pid 6388] creat("./file0/file0", 0202 [pid 5073] fstat(3, [pid 5068] <... close resumed>) = 0 [pid 6388] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6390, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 6388] exit_group(0 [pid 5073] getdents64(3, [pid 5071] umount2("./107", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6388] <... exit_group resumed>) = ? [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6388] +++ exited with 0 +++ [pid 5073] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./107", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6396] <... write resumed>) = 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5068] rmdir("./108" [pid 6396] munmap(0x7f7f7af80000, 4194304 [pid 5073] lstat("./110/binderfs", [pid 5071] fstat(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6388, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 6396] <... munmap resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... rmdir resumed>) = 0 [pid 6396] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] unlink("./110/binderfs" [pid 5071] getdents64(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] mkdir("./109", 0777 [pid 6396] <... openat resumed>) = 4 [pid 5073] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6396] ioctl(4, LOOP_SET_FD, 3 [pid 5073] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 183.250518][ T6390] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 183.256637][ T6388] overlayfs: failed to resolve './file0': -2 [ 183.277254][ T6390] overlayfs: failed to resolve './file0': -2 [pid 5071] umount2("./107/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5068] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(3, [pid 5071] lstat("./107/binderfs", [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] getdents64(3, [pid 5071] unlink("./107/binderfs" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... unlink resumed>) = 0 [pid 5069] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./109/binderfs" [pid 6396] <... ioctl resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5069] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6397] 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"..., 4194304 [pid 6396] close(3 [pid 5068] <... openat resumed>) = 3 [pid 6396] <... close resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6396] mkdir("./file0", 0777 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6396] <... mkdir resumed>) = 0 [pid 5068] close(3 [pid 6396] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6399 ./strace-static-x86_64: Process 6399 attached [pid 6399] chdir("./109") = 0 [pid 6399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6399] setpgid(0, 0) = 0 [ 183.324704][ T6396] loop2: detected capacity change from 0 to 8192 [pid 6399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6399] write(3, "1000", 4) = 4 [pid 6399] close(3) = 0 [pid 6399] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6399] memfd_create("syzkaller", 0) = 3 [pid 6399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5071] <... umount2 resumed>) = 0 [ 183.383914][ T6396] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6399] 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"..., 4194304 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5069] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./110/file0") = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 5071] lstat("./107/file0", [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] lstat("./109/file0", [pid 5071] umount2("./107/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./110") = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] mkdir("./111", 0777 [pid 5071] openat(AT_FDCWD, "./107/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... mkdir resumed>) = 0 [pid 5069] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... openat resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 3 [pid 5071] fstat(4, [pid 5069] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... openat resumed>) = 4 [pid 5071] getdents64(4, [pid 5073] close(3 [pid 5069] fstat(4, [pid 5073] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6400 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(4, [pid 5071] close(4 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 6400 attached [pid 6397] <... write resumed>) = 4194304 [pid 5071] <... close resumed>) = 0 [pid 6397] munmap(0x7f7f7af80000, 4194304 [pid 5069] getdents64(4, [pid 5071] rmdir("./107/file0" [pid 6397] <... munmap resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [ 183.455746][ T6396] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 183.465470][ T6396] REISERFS (device loop2): using ordered data mode [ 183.472416][ T6396] reiserfs: using flush barriers [ 183.479864][ T6396] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6397] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] close(4 [pid 5071] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./109/file0" [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6397] <... openat resumed>) = 4 [pid 6397] ioctl(4, LOOP_SET_FD, 3 [pid 6400] chdir("./111" [pid 5071] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 5071] rmdir("./107" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6400] <... chdir resumed>) = 0 [pid 6399] <... write resumed>) = 4194304 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] close(3 [pid 6397] <... ioctl resumed>) = 0 [pid 6397] close(3) = 0 [pid 6397] mkdir("./file0", 0777) = 0 [pid 6397] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6400] setpgid(0, 0) = 0 [pid 5071] mkdir("./108", 0777 [pid 5069] <... close resumed>) = 0 [pid 6400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6399] munmap(0x7f7f7af80000, 4194304 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] rmdir("./109" [pid 6400] <... openat resumed>) = 3 [pid 6399] <... munmap resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6400] write(3, "1000", 4 [pid 5069] <... rmdir resumed>) = 0 [pid 6400] <... write resumed>) = 4 [pid 6399] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... openat resumed>) = 3 [pid 5069] mkdir("./110", 0777 [pid 6400] close(3 [pid 6399] <... openat resumed>) = 4 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... mkdir resumed>) = 0 [pid 6399] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6400] <... close resumed>) = 0 [pid 6400] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6400] memfd_create("syzkaller", 0) = 3 [pid 6400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6399] <... ioctl resumed>) = 0 [pid 5071] close(3 [pid 5069] <... openat resumed>) = 3 [ 183.541834][ T6397] loop4: detected capacity change from 0 to 8192 [ 183.546038][ T6396] REISERFS (device loop2): checking transaction log (loop2) [ 183.561406][ T6396] REISERFS (device loop2): Using r5 hash to sort names [ 183.562704][ T6399] loop0: detected capacity change from 0 to 8192 [ 183.575727][ T6397] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6399] close(3 [pid 5071] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 6399] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6399] mkdir("./file0", 0777 [pid 5069] close(3 [pid 6399] <... mkdir resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6402 [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 6402 attached [pid 6399] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6403 [pid 6402] chdir("./108") = 0 [pid 6402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6402] setpgid(0, 0) = 0 [pid 6402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6402] write(3, "1000", 4) = 4 [pid 6402] close(3) = 0 [pid 6402] symlink("/dev/binderfs", "./binderfs") = 0 [ 183.584446][ T6396] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 183.589181][ T6397] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 183.610593][ T6397] REISERFS (device loop4): using ordered data mode [ 183.617652][ T6397] reiserfs: using flush barriers [pid 6400] 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"..., 4194304./strace-static-x86_64: Process 6403 attached [pid 6402] memfd_create("syzkaller", 0 [pid 6403] chdir("./110" [pid 6402] <... memfd_create resumed>) = 3 [pid 6403] <... chdir resumed>) = 0 [pid 6402] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6402] <... mmap resumed>) = 0x7f7f7af80000 [pid 6403] <... prctl resumed>) = 0 [pid 6400] <... write resumed>) = 4194304 [pid 6396] <... mount resumed>) = 0 [pid 6403] setpgid(0, 0) = 0 [pid 6403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6403] write(3, "1000", 4) = 4 [pid 6403] close(3) = 0 [pid 6403] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6403] memfd_create("syzkaller", 0) = 3 [pid 6403] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6400] munmap(0x7f7f7af80000, 4194304 [pid 6396] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6400] <... munmap resumed>) = 0 [pid 6396] <... openat resumed>) = 3 [pid 6400] openat(AT_FDCWD, "/dev/loop5", O_RDWR [ 183.639806][ T6396] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 183.654689][ T6397] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 183.672117][ T6399] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 183.680341][ T6397] REISERFS (device loop4): checking transaction log (loop4) [pid 6396] chdir("./file0" [pid 6400] <... openat resumed>) = 4 [pid 6396] <... chdir resumed>) = 0 [pid 6400] ioctl(4, LOOP_SET_FD, 3 [pid 6396] ioctl(4, LOOP_CLR_FD [pid 6400] <... ioctl resumed>) = 0 [pid 6396] <... ioctl resumed>) = 0 [pid 6396] close(4) = 0 [pid 6396] mkdir("./file1", 000) = 0 [pid 6396] mkdir("./bus", 000) = 0 [pid 6396] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6400] close(3) = 0 [pid 6400] mkdir("./file0", 0777) = 0 [ 183.706454][ T6399] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 183.712996][ T6397] REISERFS (device loop4): Using r5 hash to sort names [ 183.723894][ T6400] loop5: detected capacity change from 0 to 8192 [ 183.725262][ T6397] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 183.744123][ T6397] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6400] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6397] <... mount resumed>) = 0 [ 183.754191][ T6399] REISERFS (device loop0): using ordered data mode [ 183.754355][ T6396] overlayfs: upper fs needs to support d_type. [ 183.760698][ T6399] reiserfs: using flush barriers [ 183.761738][ T6399] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 183.788730][ T6399] REISERFS (device loop0): checking transaction log (loop0) [pid 6403] 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"..., 4194304 [pid 6397] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6402] 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"..., 4194304 [ 183.788936][ T6400] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 183.806874][ T6396] overlayfs: upper fs does not support tmpfile. [ 183.823907][ T6399] REISERFS (device loop0): Using r5 hash to sort names [ 183.830971][ T6399] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6397] chdir("./file0") = 0 [pid 6403] <... write resumed>) = 4194304 [pid 6403] munmap(0x7f7f7af80000, 4194304 [pid 6397] ioctl(4, LOOP_CLR_FD [pid 6403] <... munmap resumed>) = 0 [pid 6397] <... ioctl resumed>) = 0 [pid 6403] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6397] close(4 [pid 6403] <... openat resumed>) = 4 [ 183.854391][ T6396] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 183.862673][ T6396] overlayfs: failed to resolve './file0': -2 [ 183.866805][ T6400] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 183.870425][ T6399] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 183.878264][ T6400] REISERFS (device loop5): using ordered data mode [ 183.894717][ T6400] reiserfs: using flush barriers [pid 6403] ioctl(4, LOOP_SET_FD, 3 [pid 6397] <... close resumed>) = 0 [pid 6397] mkdir("./file1", 000 [pid 6403] <... ioctl resumed>) = 0 [pid 6399] <... mount resumed>) = 0 [pid 6396] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6403] close(3 [pid 6399] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6397] <... mkdir resumed>) = 0 [pid 6396] creat("./file0/file0", 0202 [pid 6403] <... close resumed>) = 0 [pid 6396] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6399] <... openat resumed>) = 3 [pid 6397] mkdir("./bus", 000 [pid 6403] mkdir("./file0", 0777 [pid 6396] exit_group(0 [pid 6399] chdir("./file0" [pid 6397] <... mkdir resumed>) = 0 [pid 6403] <... mkdir resumed>) = 0 [pid 6399] <... chdir resumed>) = 0 [pid 6396] <... exit_group resumed>) = ? [pid 6397] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6399] ioctl(4, LOOP_CLR_FD [pid 6396] +++ exited with 0 +++ [pid 6399] <... ioctl resumed>) = 0 [pid 6403] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6396, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 6399] close(4 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 6399] <... close resumed>) = 0 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5070] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./108/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./108/binderfs") = 0 [pid 5070] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6399] mkdir("./file1", 000) = 0 [ 183.902025][ T6400] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 183.918679][ T6403] loop1: detected capacity change from 0 to 8192 [ 183.926019][ T6400] REISERFS (device loop5): checking transaction log (loop5) [ 183.941375][ T6397] overlayfs: upper fs needs to support d_type. [ 183.947980][ T6397] overlayfs: upper fs does not support tmpfile. [pid 6399] mkdir("./bus", 000 [pid 6402] <... write resumed>) = 4194304 [pid 6399] <... mkdir resumed>) = 0 [ 183.956390][ T6397] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 183.959946][ T6400] REISERFS (device loop5): Using r5 hash to sort names [ 183.965322][ T6397] overlayfs: failed to resolve './file0': -2 [ 183.977168][ T6403] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 183.995345][ T6400] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6402] munmap(0x7f7f7af80000, 4194304 [pid 6399] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6397] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6402] <... munmap resumed>) = 0 [pid 6402] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 183.995747][ T6403] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 184.018029][ T6403] REISERFS (device loop1): using ordered data mode [ 184.025060][ T6403] reiserfs: using flush barriers [ 184.026689][ T6402] loop3: detected capacity change from 0 to 8192 [ 184.032342][ T6400] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 6402] ioctl(4, LOOP_SET_FD, 3 [pid 6397] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6397] exit_group(0) = ? [pid 6400] <... mount resumed>) = 0 [pid 6397] +++ exited with 0 +++ [pid 6400] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6397, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5072] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, [pid 6400] <... openat resumed>) = 3 [pid 6402] <... ioctl resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6402] close(3 [pid 6400] chdir("./file0" [pid 5072] getdents64(3, [pid 6402] <... close resumed>) = 0 [pid 6400] <... chdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6402] mkdir("./file0", 0777 [pid 5072] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6402] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6402] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] lstat("./109/binderfs", [pid 6400] ioctl(4, LOOP_CLR_FD [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 184.037194][ T6403] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 184.052829][ T6399] overlayfs: upper fs needs to support d_type. [ 184.080318][ T6399] overlayfs: upper fs does not support tmpfile. [ 184.093571][ T6399] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 184.102173][ T6399] overlayfs: failed to resolve './file0': -2 [pid 5072] unlink("./109/binderfs" [pid 6400] <... ioctl resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6400] close(4 [pid 6399] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = 0 [pid 6400] <... close resumed>) = 0 [pid 6399] creat("./file0/file0", 0202 [pid 6400] mkdir("./file1", 000 [pid 6399] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6400] <... mkdir resumed>) = 0 [pid 6399] exit_group(0 [pid 6400] mkdir("./bus", 000 [pid 6399] <... exit_group resumed>) = ? [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6400] <... mkdir resumed>) = 0 [pid 6399] +++ exited with 0 +++ [pid 6400] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] lstat("./108/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6399, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] rmdir("./108/file0") = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./108" [pid 5068] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./109", 0777) = 0 [ 184.109552][ T6403] REISERFS (device loop1): checking transaction log (loop1) [ 184.114829][ T6402] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 184.140261][ T6400] overlayfs: upper fs needs to support d_type. [ 184.143982][ T6403] REISERFS (device loop1): Using r5 hash to sort names [ 184.148873][ T6400] overlayfs: upper fs does not support tmpfile. [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./109/binderfs" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6400] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6400] creat("./file0/file0", 0202 [pid 5070] close(3 [pid 6400] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... close resumed>) = 0 [pid 6400] exit_group(0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6400] <... exit_group resumed>) = ? [pid 6400] +++ exited with 0 +++ [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6408 [ 184.160220][ T6400] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 184.168542][ T6400] overlayfs: failed to resolve './file0': -2 [ 184.174829][ T6402] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 184.184110][ T6402] REISERFS (device loop3): using ordered data mode [ 184.191441][ T6402] reiserfs: using flush barriers [ 184.194546][ T6403] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6400, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5073] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./111/binderfs") = 0 [pid 5073] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6403] <... mount resumed>) = 0 [pid 6403] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6403] chdir("./file0") = 0 [pid 6403] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 6408 attached ) = 0 [pid 6403] close(4) = 0 [pid 6403] mkdir("./file1", 000) = 0 [pid 6403] mkdir("./bus", 000) = 0 [ 184.209714][ T6402] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 184.244532][ T6403] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6403] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6408] chdir("./109") = 0 [pid 6408] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6408] setpgid(0, 0) = 0 [pid 6408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6408] write(3, "1000", 4) = 4 [pid 6408] close(3) = 0 [pid 6408] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6408] memfd_create("syzkaller", 0) = 3 [pid 6408] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 184.270616][ T6403] overlayfs: upper fs needs to support d_type. [ 184.283433][ T6402] REISERFS (device loop3): checking transaction log (loop3) [ 184.291222][ T6403] overlayfs: upper fs does not support tmpfile. [ 184.299089][ T6402] REISERFS (device loop3): Using r5 hash to sort names [ 184.307257][ T6403] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./109/file0") = 0 [pid 5072] getdents64(3, [pid 5073] <... umount2 resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [ 184.342289][ T6402] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 184.375664][ T6403] overlayfs: failed to resolve './file0': -2 [pid 5072] rmdir("./109") = 0 [pid 5068] <... umount2 resumed>) = 0 [pid 5072] mkdir("./110", 0777 [pid 5068] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5068] lstat("./109/file0", [pid 5072] close(3) = 0 [pid 6403] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6403] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6403] exit_group(0) = ? [pid 6403] +++ exited with 0 +++ [pid 6402] <... mount resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6402] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6402] chdir("./file0" [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6403, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6409 [pid 5068] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 3 [pid 5068] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5068] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] fstat(4, [pid 5069] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./110/binderfs", [pid 5068] getdents64(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./110/binderfs" [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] <... unlink resumed>) = 0 [pid 5068] getdents64(4, [pid 5069] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 6402] <... chdir resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5068] rmdir("./109/file0" [pid 6402] ioctl(4, LOOP_CLR_FD [pid 5068] <... rmdir resumed>) = 0 [pid 6402] <... ioctl resumed>) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6402] close(4 [pid 5073] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] close(3 [pid 6402] <... close resumed>) = 0 [pid 5068] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./109" [ 184.386248][ T6402] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] lstat("./111/file0", ./strace-static-x86_64: Process 6409 attached [pid 6402] mkdir("./file1", 000 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] <... rmdir resumed>) = 0 [pid 6409] chdir("./110" [pid 6402] <... mkdir resumed>) = 0 [pid 6409] <... chdir resumed>) = 0 [pid 6402] mkdir("./bus", 000 [pid 5073] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] mkdir("./110", 0777 [pid 6409] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6402] <... mkdir resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6409] <... prctl resumed>) = 0 [pid 6402] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6409] setpgid(0, 0 [pid 6408] 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"..., 4194304 [pid 5073] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... mkdir resumed>) = 0 [pid 6409] <... setpgid resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] fstat(4, [pid 6409] <... openat resumed>) = 3 [pid 5068] <... openat resumed>) = 3 [pid 6409] write(3, "1000", 4 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6409] <... write resumed>) = 4 [pid 5073] getdents64(4, [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6409] close(3) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6409] symlink("/dev/binderfs", "./binderfs" [pid 5073] getdents64(4, [pid 5068] close(3 [pid 6409] <... symlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6409] memfd_create("syzkaller", 0 [pid 5073] close(4 [pid 5068] <... close resumed>) = 0 [pid 6409] <... memfd_create resumed>) = 3 [pid 6409] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... close resumed>) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6409] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] rmdir("./111/file0"./strace-static-x86_64: Process 6410 attached ) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6410 [pid 5073] getdents64(3, [pid 6410] chdir("./110" [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6410] <... chdir resumed>) = 0 [pid 5073] close(3 [pid 6410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... close resumed>) = 0 [pid 6410] <... prctl resumed>) = 0 [pid 5073] rmdir("./111" [pid 6410] setpgid(0, 0) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 6410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] mkdir("./112", 0777 [pid 6410] <... openat resumed>) = 3 [pid 6410] write(3, "1000", 4 [pid 5073] <... mkdir resumed>) = 0 [pid 6410] <... write resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 6410] close(3 [pid 5073] <... openat resumed>) = 3 [pid 6410] <... close resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 6410] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6410] <... symlink resumed>) = 0 [pid 5073] close(3 [pid 6410] memfd_create("syzkaller", 0 [pid 5073] <... close resumed>) = 0 [pid 6410] <... memfd_create resumed>) = 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6410] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6411 [ 184.447425][ T6402] overlayfs: upper fs needs to support d_type. [ 184.474078][ T6402] overlayfs: upper fs does not support tmpfile. [ 184.480964][ T6402] overlayfs: upper fs does not support RENAME_WHITEOUT. ./strace-static-x86_64: Process 6411 attached [pid 6411] chdir("./112") = 0 [pid 6411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6411] setpgid(0, 0 [pid 5069] <... umount2 resumed>) = 0 [pid 6411] <... setpgid resumed>) = 0 [pid 6408] <... write resumed>) = 4194304 [pid 6411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6408] munmap(0x7f7f7af80000, 4194304 [pid 6411] <... openat resumed>) = 3 [pid 6411] write(3, "1000", 4 [pid 6408] <... munmap resumed>) = 0 [pid 6411] <... write resumed>) = 4 [pid 6408] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6411] close(3 [pid 6408] <... openat resumed>) = 4 [pid 6411] <... close resumed>) = 0 [pid 6408] ioctl(4, LOOP_SET_FD, 3 [pid 6411] symlink("/dev/binderfs", "./binderfs" [pid 6409] 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"..., 4194304 [pid 6411] <... symlink resumed>) = 0 [pid 6410] 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"..., 4194304 [pid 6408] <... ioctl resumed>) = 0 [pid 6411] memfd_create("syzkaller", 0) = 3 [pid 6411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6408] close(3 [pid 6411] <... mmap resumed>) = 0x7f7f7af80000 [pid 6408] <... close resumed>) = 0 [pid 5069] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6408] mkdir("./file0", 0777 [pid 6402] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6402] creat("./file0/file0", 0202 [pid 6408] <... mkdir resumed>) = 0 [pid 6402] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6402] exit_group(0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6408] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6402] <... exit_group resumed>) = ? [pid 5069] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, [pid 6402] +++ exited with 0 +++ [pid 5069] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6402, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5069] getdents64(4, [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [ 184.544874][ T6402] overlayfs: failed to resolve './file0': -2 [ 184.577573][ T6408] loop2: detected capacity change from 0 to 8192 [pid 5069] close(4) = 0 [pid 5069] rmdir("./110/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./110") = 0 [pid 5069] mkdir("./111", 0777 [pid 5071] umount2("./108", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] openat(AT_FDCWD, "./108", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5071] fstat(3, [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] close(3 [pid 6411] 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"..., 4194304 [pid 5071] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6413 ./strace-static-x86_64: Process 6413 attached [pid 6413] chdir("./111") = 0 [pid 6413] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6413] setpgid(0, 0 [pid 6409] <... write resumed>) = 4194304 [ 184.613219][ T6408] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] umount2("./108/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6413] <... setpgid resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6413] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] lstat("./108/binderfs", [pid 6413] <... openat resumed>) = 3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6413] write(3, "1000", 4 [pid 5071] unlink("./108/binderfs" [pid 6413] <... write resumed>) = 4 [pid 5071] <... unlink resumed>) = 0 [pid 6413] close(3 [pid 5071] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6413] <... close resumed>) = 0 [pid 6411] <... write resumed>) = 4194304 [pid 6409] munmap(0x7f7f7af80000, 4194304 [pid 6413] symlink("/dev/binderfs", "./binderfs" [pid 6409] <... munmap resumed>) = 0 [pid 6413] <... symlink resumed>) = 0 [pid 6409] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6413] memfd_create("syzkaller", 0 [pid 6411] munmap(0x7f7f7af80000, 4194304 [pid 6409] <... openat resumed>) = 4 [pid 6413] <... memfd_create resumed>) = 3 [pid 6409] ioctl(4, LOOP_SET_FD, 3 [pid 6413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6411] <... munmap resumed>) = 0 [pid 6413] <... mmap resumed>) = 0x7f7f7af80000 [pid 6411] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6409] <... ioctl resumed>) = 0 [ 184.688140][ T6408] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 184.697950][ T6408] REISERFS (device loop2): using ordered data mode [ 184.704913][ T6408] reiserfs: using flush barriers [ 184.704932][ T6409] loop4: detected capacity change from 0 to 8192 [ 184.716416][ T6408] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6411] ioctl(4, LOOP_SET_FD, 3 [pid 6409] close(3 [pid 6410] <... write resumed>) = 4194304 [pid 6409] <... close resumed>) = 0 [pid 6413] 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"..., 4194304 [pid 6410] munmap(0x7f7f7af80000, 4194304 [pid 6409] mkdir("./file0", 0777 [pid 6411] <... ioctl resumed>) = 0 [pid 6411] close(3) = 0 [pid 6411] mkdir("./file0", 0777) = 0 [pid 6411] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6410] <... munmap resumed>) = 0 [pid 6409] <... mkdir resumed>) = 0 [pid 6410] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6409] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6410] <... openat resumed>) = 4 [ 184.738034][ T6411] loop5: detected capacity change from 0 to 8192 [ 184.758035][ T6408] REISERFS (device loop2): checking transaction log (loop2) [ 184.778626][ T6410] loop0: detected capacity change from 0 to 8192 [pid 6410] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6413] <... write resumed>) = 4194304 [pid 6413] munmap(0x7f7f7af80000, 4194304 [pid 6410] close(3 [pid 6413] <... munmap resumed>) = 0 [pid 6410] <... close resumed>) = 0 [pid 6413] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6410] mkdir("./file0", 0777 [pid 6413] <... openat resumed>) = 4 [pid 6413] ioctl(4, LOOP_SET_FD, 3 [pid 6410] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [ 184.782404][ T6408] REISERFS (device loop2): Using r5 hash to sort names [ 184.793835][ T6411] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 184.811215][ T6409] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 184.814084][ T6408] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6408] <... mount resumed>) = 0 [pid 6408] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6408] chdir("./file0") = 0 [pid 6408] ioctl(4, LOOP_CLR_FD) = 0 [pid 6408] close(4 [pid 6410] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6408] <... close resumed>) = 0 [pid 5071] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6413] <... ioctl resumed>) = 0 [pid 6408] mkdir("./file1", 000) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 184.828263][ T6411] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 184.838384][ T6408] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 184.846547][ T6413] loop1: detected capacity change from 0 to 8192 [ 184.862882][ T6409] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 184.872293][ T6411] REISERFS (device loop5): using ordered data mode [ 184.873645][ T6409] REISERFS (device loop4): using ordered data mode [pid 5071] lstat("./108/file0", [pid 6408] mkdir("./bus", 000 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./108/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6408] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./108/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6408] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 6413] close(3) = 0 [pid 6413] mkdir("./file0", 0777) = 0 [ 184.880928][ T6410] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 184.886602][ T6409] reiserfs: using flush barriers [ 184.911849][ T6408] overlayfs: upper fs needs to support d_type. [ 184.912319][ T6411] reiserfs: using flush barriers [ 184.918771][ T6409] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6413] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] close(4) = 0 [pid 5071] rmdir("./108/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./108") = 0 [pid 5071] mkdir("./109", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [ 184.928272][ T6410] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 184.943408][ T6411] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 184.948468][ T6410] REISERFS (device loop0): using ordered data mode [ 184.971309][ T6410] reiserfs: using flush barriers [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6418 ./strace-static-x86_64: Process 6418 attached [ 184.977656][ T6410] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 184.998913][ T6408] overlayfs: upper fs does not support tmpfile. [ 184.999733][ T6410] REISERFS (device loop0): checking transaction log (loop0) [ 185.006297][ T6413] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 185.013019][ T6409] REISERFS (device loop4): checking transaction log (loop4) [ 185.026775][ T6410] REISERFS (device loop0): Using r5 hash to sort names [pid 6418] chdir("./109") = 0 [pid 6418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6418] setpgid(0, 0) = 0 [pid 6418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6418] write(3, "1000", 4) = 4 [pid 6418] close(3) = 0 [pid 6418] symlink("/dev/binderfs", "./binderfs") = 0 [ 185.033384][ T6411] REISERFS (device loop5): checking transaction log (loop5) [ 185.047857][ T6409] REISERFS (device loop4): Using r5 hash to sort names [ 185.055181][ T6411] REISERFS (device loop5): Using r5 hash to sort names [ 185.056047][ T6408] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 185.062221][ T6411] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.071183][ T6408] overlayfs: failed to resolve './file0': -2 [pid 6418] memfd_create("syzkaller", 0) = 3 [pid 6418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6410] <... mount resumed>) = 0 [pid 6410] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 185.082374][ T6409] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.088403][ T6410] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.113401][ T6410] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 185.123232][ T6413] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 185.132820][ T6413] REISERFS (device loop1): using ordered data mode [pid 6410] chdir("./file0" [pid 6408] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6410] <... chdir resumed>) = 0 [pid 6410] ioctl(4, LOOP_CLR_FD [pid 6408] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6408] exit_group(0) = ? [pid 6408] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6408, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 6410] <... ioctl resumed>) = 0 [pid 5070] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6410] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6410] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6410] mkdir("./file1", 000 [pid 5070] <... openat resumed>) = 3 [pid 6410] <... mkdir resumed>) = 0 [pid 5070] fstat(3, [pid 6410] mkdir("./bus", 000 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6410] <... mkdir resumed>) = 0 [pid 5070] getdents64(3, [ 185.139761][ T6413] reiserfs: using flush barriers [ 185.146501][ T6413] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 185.163238][ T6413] REISERFS (device loop1): checking transaction log (loop1) [ 185.171835][ T6413] REISERFS (device loop1): Using r5 hash to sort names [pid 6410] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6418] 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"..., 4194304 [pid 5070] unlink("./109/binderfs") = 0 [pid 6413] <... mount resumed>) = 0 [ 185.179482][ T6413] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.204060][ T6410] overlayfs: upper fs needs to support d_type. [ 185.205927][ T6413] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 185.210304][ T6410] overlayfs: upper fs does not support tmpfile. [ 185.220227][ T6411] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6413] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6411] <... mount resumed>) = 0 [pid 6413] <... openat resumed>) = 3 [pid 6411] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6413] chdir("./file0") = 0 [pid 6411] <... openat resumed>) = 3 [pid 6413] ioctl(4, LOOP_CLR_FD [pid 6411] chdir("./file0" [pid 6413] <... ioctl resumed>) = 0 [pid 6413] close(4 [pid 6411] <... chdir resumed>) = 0 [pid 6413] <... close resumed>) = 0 [ 185.228763][ T6409] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 6413] mkdir("./file1", 000 [pid 6411] ioctl(4, LOOP_CLR_FD [pid 6413] <... mkdir resumed>) = 0 [pid 6411] <... ioctl resumed>) = 0 [pid 6418] <... write resumed>) = 4194304 [pid 6413] mkdir("./bus", 000 [pid 6411] close(4 [pid 6409] <... mount resumed>) = 0 [pid 6409] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6409] chdir("./file0") = 0 [pid 6418] munmap(0x7f7f7af80000, 4194304 [pid 6413] <... mkdir resumed>) = 0 [pid 6411] <... close resumed>) = 0 [pid 6418] <... munmap resumed>) = 0 [pid 6413] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6411] mkdir("./file1", 000 [pid 6418] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6409] ioctl(4, LOOP_CLR_FD [pid 6411] <... mkdir resumed>) = 0 [pid 6418] <... openat resumed>) = 4 [pid 6411] mkdir("./bus", 000 [pid 6409] <... ioctl resumed>) = 0 [pid 6409] close(4) = 0 [pid 6409] mkdir("./file1", 000) = 0 [pid 6409] mkdir("./bus", 000) = 0 [ 185.294639][ T6410] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 185.304573][ T6410] overlayfs: failed to resolve './file0': -2 [ 185.326262][ T6413] overlayfs: upper fs needs to support d_type. [ 185.333078][ T6413] overlayfs: upper fs does not support tmpfile. [pid 6409] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6418] ioctl(4, LOOP_SET_FD, 3 [pid 6411] <... mkdir resumed>) = 0 [pid 6410] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6411] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6410] creat("./file0/file0", 0202 [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./109/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6410] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... openat resumed>) = 4 [pid 6418] <... ioctl resumed>) = 0 [pid 6410] exit_group(0 [pid 5070] fstat(4, [pid 6418] close(3 [pid 6410] <... exit_group resumed>) = ? [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./109/file0") = 0 [pid 6418] <... close resumed>) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 6410] +++ exited with 0 +++ [pid 5070] close(3 [ 185.341009][ T6409] overlayfs: upper fs needs to support d_type. [ 185.348240][ T6418] loop3: detected capacity change from 0 to 8192 [ 185.357205][ T6411] overlayfs: upper fs needs to support d_type. [ 185.368001][ T6411] overlayfs: upper fs does not support tmpfile. [ 185.368334][ T6409] overlayfs: upper fs does not support tmpfile. [ 185.381877][ T6413] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6418] mkdir("./file0", 0777 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./109" [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6410, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] <... rmdir resumed>) = 0 [pid 5068] restart_syscall(<... resuming interrupted clone ...> [pid 5070] mkdir("./110", 0777 [pid 5068] <... restart_syscall resumed>) = 0 [pid 6418] <... mkdir resumed>) = 0 [pid 6413] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... mkdir resumed>) = 0 [pid 6418] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6413] creat("./file0/file0", 0202 [pid 6411] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5068] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5068] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] close(3 [pid 5068] <... openat resumed>) = 3 [pid 5070] <... close resumed>) = 0 [pid 5068] fstat(3, [pid 6413] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6413] exit_group(0 [pid 6411] creat("./file0/file0", 0202 [pid 5068] getdents64(3, [pid 6413] <... exit_group resumed>) = ? [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6419 [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6413] +++ exited with 0 +++ [pid 6411] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 6419 attached [pid 6411] exit_group(0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6413, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5068] lstat("./110/binderfs", [pid 6419] chdir("./110" [pid 6411] <... exit_group resumed>) = ? [pid 6411] +++ exited with 0 +++ [pid 5068] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 185.392752][ T6411] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 185.405282][ T6413] overlayfs: failed to resolve './file0': -2 [ 185.413031][ T6411] overlayfs: failed to resolve './file0': -2 [ 185.421324][ T6409] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6419] <... chdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6411, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} --- [pid 5068] unlink("./110/binderfs" [pid 6419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6419] setpgid(0, 0) = 0 [pid 6419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6419] write(3, "1000", 4) = 4 [pid 6419] close(3) = 0 [pid 6419] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6419] memfd_create("syzkaller", 0) = 3 [pid 6419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6409] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5068] <... unlink resumed>) = 0 [pid 5068] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6409] creat("./file0/file0", 0202 [pid 5073] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6409] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 5069] fstat(3, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5069] getdents64(3, [pid 6409] exit_group(0 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 6409] <... exit_group resumed>) = ? [pid 5073] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./112/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./111/binderfs", [pid 5073] unlink("./112/binderfs" [pid 6409] +++ exited with 0 +++ [pid 5073] <... unlink resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6409, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=24 /* 0.24 s */} --- [pid 5069] unlink("./111/binderfs") = 0 [pid 5072] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./110/binderfs") = 0 [ 185.446959][ T6418] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 185.450772][ T6409] overlayfs: failed to resolve './file0': -2 [ 185.462659][ T6418] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 185.478423][ T6418] REISERFS (device loop3): using ordered data mode [ 185.485905][ T6418] reiserfs: using flush barriers [pid 5072] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 185.525604][ T6418] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6419] 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"..., 4194304) = 4194304 [pid 6419] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6419] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6419] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6419] close(3) = 0 [pid 6419] mkdir("./file0", 0777) = 0 [pid 6419] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5068] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] lstat("./110/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] close(4 [pid 5068] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 5068] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, [ 185.621703][ T6419] loop2: detected capacity change from 0 to 8192 [ 185.638309][ T6419] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 185.654311][ T6418] REISERFS (device loop3): checking transaction log (loop3) [pid 5069] rmdir("./111/file0") = 0 [pid 5069] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./111") = 0 [pid 5069] mkdir("./112", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5068] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5068] getdents64(4, [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3) = 0 [pid 5068] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... umount2 resumed>) = 0 [pid 5068] getdents64(4, [pid 5073] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./112/file0", [pid 5068] <... close resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] rmdir("./110/file0" [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6422 [pid 5068] <... rmdir resumed>) = 0 [pid 5073] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] getdents64(3, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 6422 attached [pid 5073] openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = 0 [pid 5068] close(3 [pid 6422] chdir("./112" [pid 5073] <... openat resumed>) = 4 [pid 5072] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... close resumed>) = 0 [ 185.682916][ T6418] REISERFS (device loop3): Using r5 hash to sort names [ 185.691874][ T6419] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 185.711089][ T6418] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.712384][ T6419] REISERFS (device loop2): using ordered data mode [pid 6422] <... chdir resumed>) = 0 [pid 6418] <... mount resumed>) = 0 [pid 5073] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] rmdir("./110" [pid 6422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] lstat("./110/file0", [pid 5068] <... rmdir resumed>) = 0 [pid 6422] <... prctl resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] mkdir("./111", 0777 [pid 6422] setpgid(0, 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5068] <... mkdir resumed>) = 0 [pid 6418] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6422] <... setpgid resumed>) = 0 [pid 5073] getdents64(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5068] <... openat resumed>) = 3 [pid 6422] <... openat resumed>) = 3 [pid 5073] close(4 [pid 5072] <... openat resumed>) = 4 [pid 6422] write(3, "1000", 4 [pid 5073] <... close resumed>) = 0 [pid 5072] fstat(4, [pid 5068] ioctl(3, LOOP_CLR_FD [pid 6422] <... write resumed>) = 4 [pid 5073] rmdir("./112/file0" [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6422] close(3 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] getdents64(4, [pid 5068] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6422] <... close resumed>) = 0 [pid 5073] getdents64(3, [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] close(3 [pid 6422] symlink("/dev/binderfs", "./binderfs" [pid 6418] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(4, [pid 5068] <... close resumed>) = 0 [pid 6422] <... symlink resumed>) = 0 [pid 5073] close(3 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6422] memfd_create("syzkaller", 0 [pid 5073] <... close resumed>) = 0 [pid 5072] close(4 [pid 6422] <... memfd_create resumed>) = 3 [pid 5073] rmdir("./112" [pid 5072] <... close resumed>) = 0 [pid 5068] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6423 [pid 6422] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6418] chdir("./file0" [pid 5073] <... rmdir resumed>) = 0 [ 185.725008][ T6418] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 185.732159][ T6419] reiserfs: using flush barriers [ 185.746234][ T6419] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 185.763676][ T6419] REISERFS (device loop2): checking transaction log (loop2) [ 185.772708][ T6419] REISERFS (device loop2): Using r5 hash to sort names [pid 5072] rmdir("./110/file0" [pid 6422] <... mmap resumed>) = 0x7f7f7af80000 [pid 5073] mkdir("./113", 0777 [pid 5072] <... rmdir resumed>) = 0 [pid 6418] <... chdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 ./strace-static-x86_64: Process 6423 attached [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] rmdir("./110" [pid 6423] chdir("./111" [pid 5073] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 6423] <... chdir resumed>) = 0 [pid 6419] <... mount resumed>) = 0 [pid 6418] ioctl(4, LOOP_CLR_FD [pid 5073] <... close resumed>) = 0 [pid 5072] mkdir("./111", 0777 [pid 6423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6422] 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"..., 4194304 [pid 6419] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6418] <... ioctl resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... mkdir resumed>) = 0 [pid 6423] <... prctl resumed>) = 0 [pid 6419] <... openat resumed>) = 3 [pid 6418] close(4 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6423] setpgid(0, 0 [pid 6419] chdir("./file0" [pid 6418] <... close resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6424 [pid 5072] <... openat resumed>) = 3 [pid 6423] <... setpgid resumed>) = 0 [pid 6419] <... chdir resumed>) = 0 [pid 6418] mkdir("./file1", 000 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6419] ioctl(4, LOOP_CLR_FD [pid 6418] <... mkdir resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6423] <... openat resumed>) = 3 [ 185.780339][ T6419] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 185.793264][ T6419] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 6419] <... ioctl resumed>) = 0 [pid 6418] mkdir("./bus", 000 [pid 5072] close(3./strace-static-x86_64: Process 6424 attached [pid 6423] write(3, "1000", 4 [pid 6419] close(4 [pid 6418] <... mkdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 6424] chdir("./113" [pid 6423] <... write resumed>) = 4 [pid 6419] <... close resumed>) = 0 [pid 6418] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6424] <... chdir resumed>) = 0 [pid 6423] close(3 [pid 6419] mkdir("./file1", 000 [pid 6424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6423] <... close resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6425 [pid 6424] <... prctl resumed>) = 0 [pid 6423] symlink("/dev/binderfs", "./binderfs" [pid 6424] setpgid(0, 0 [pid 6423] <... symlink resumed>) = 0 [pid 6424] <... setpgid resumed>) = 0 [pid 6423] memfd_create("syzkaller", 0 [pid 6424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6423] <... memfd_create resumed>) = 3 [pid 6419] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 6425 attached [pid 6424] <... openat resumed>) = 3 [pid 6423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6419] mkdir("./bus", 000 [pid 6425] chdir("./111" [pid 6424] write(3, "1000", 4 [pid 6423] <... mmap resumed>) = 0x7f7f7af80000 [pid 6419] <... mkdir resumed>) = 0 [pid 6425] <... chdir resumed>) = 0 [pid 6424] <... write resumed>) = 4 [pid 6419] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6424] close(3 [pid 6425] <... prctl resumed>) = 0 [pid 6424] <... close resumed>) = 0 [pid 6425] setpgid(0, 0 [pid 6424] symlink("/dev/binderfs", "./binderfs" [pid 6425] <... setpgid resumed>) = 0 [pid 6424] <... symlink resumed>) = 0 [pid 6425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6424] memfd_create("syzkaller", 0 [pid 6425] <... openat resumed>) = 3 [pid 6424] <... memfd_create resumed>) = 3 [pid 6425] write(3, "1000", 4 [pid 6424] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6425] <... write resumed>) = 4 [ 185.850558][ T6418] overlayfs: upper fs needs to support d_type. [ 185.863744][ T6418] overlayfs: upper fs does not support tmpfile. [ 185.870609][ T6418] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 185.880372][ T6419] overlayfs: upper fs needs to support d_type. [ 185.893566][ T6419] overlayfs: upper fs does not support tmpfile. [pid 6424] <... mmap resumed>) = 0x7f7f7af80000 [pid 6425] close(3) = 0 [pid 6425] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6422] <... write resumed>) = 4194304 [pid 6425] memfd_create("syzkaller", 0 [pid 6422] munmap(0x7f7f7af80000, 4194304 [pid 6425] <... memfd_create resumed>) = 3 [pid 6425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6423] 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"..., 4194304 [pid 6422] <... munmap resumed>) = 0 [pid 6425] <... mmap resumed>) = 0x7f7f7af80000 [pid 6422] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 6418] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6422] <... openat resumed>) = 4 [pid 6418] creat("./file0/file0", 0202 [pid 6422] ioctl(4, LOOP_SET_FD, 3 [pid 6418] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6418] exit_group(0) = ? [pid 6422] <... ioctl resumed>) = 0 [pid 6418] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6418, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 6422] close(3 [pid 5071] <... restart_syscall resumed>) = 0 [pid 6422] <... close resumed>) = 0 [pid 6419] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./109", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./109", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 6422] mkdir("./file0", 0777 [pid 6419] creat("./file0/file0", 0202 [pid 5071] fstat(3, [pid 6422] <... mkdir resumed>) = 0 [pid 6419] <... creat resumed>) = -1 ENOENT (No such file or directory) [ 185.900464][ T6419] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 185.924089][ T6418] overlayfs: failed to resolve './file0': -2 [ 185.932680][ T6419] overlayfs: failed to resolve './file0': -2 [ 185.941397][ T6422] loop1: detected capacity change from 0 to 8192 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6422] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6419] exit_group(0 [pid 5071] getdents64(3, [pid 6419] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./109/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6419] +++ exited with 0 +++ [pid 5071] lstat("./109/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6419, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=22 /* 0.22 s */} --- [pid 5071] unlink("./109/binderfs") = 0 [pid 5071] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 6424] 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"..., 4194304 [pid 5070] lstat("./110/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./110/binderfs") = 0 [pid 5070] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 185.994464][ T6422] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6425] 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"..., 4194304) = 4194304 [pid 6425] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6425] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 186.052301][ T6422] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 186.062610][ T6422] REISERFS (device loop1): using ordered data mode [ 186.070688][ T6422] reiserfs: using flush barriers [ 186.078134][ T6422] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6425] ioctl(4, LOOP_SET_FD, 3 [pid 6423] <... write resumed>) = 4194304 [pid 6423] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6423] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 6423] ioctl(4, LOOP_SET_FD, 3 [pid 6425] <... ioctl resumed>) = 0 [pid 6425] close(3) = 0 [pid 6425] mkdir("./file0", 0777) = 0 [pid 6425] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6423] <... ioctl resumed>) = 0 [pid 6423] close(3) = 0 [ 186.102901][ T6422] REISERFS (device loop1): checking transaction log (loop1) [ 186.110795][ T6425] loop4: detected capacity change from 0 to 8192 [ 186.115713][ T6423] loop0: detected capacity change from 0 to 8192 [ 186.131891][ T6425] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6423] mkdir("./file0", 0777) = 0 [pid 6424] <... write resumed>) = 4194304 [pid 6423] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = 0 [ 186.144906][ T6425] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 186.154472][ T6425] REISERFS (device loop4): using ordered data mode [ 186.161307][ T6425] reiserfs: using flush barriers [ 186.167751][ T6425] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 186.174436][ T6423] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6424] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5071] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 6424] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6424] ioctl(4, LOOP_SET_FD, 3 [pid 5071] lstat("./109/file0", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 186.184279][ T6425] REISERFS (device loop4): checking transaction log (loop4) [ 186.198861][ T6422] REISERFS (device loop1): Using r5 hash to sort names [ 186.212187][ T6425] REISERFS (device loop4): Using r5 hash to sort names [ 186.215663][ T6422] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 186.220597][ T6425] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 186.232578][ T6422] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6422] <... mount resumed>) = 0 [pid 6422] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6422] chdir("./file0") = 0 [pid 6422] ioctl(4, LOOP_CLR_FD) = 0 [pid 6422] close(4) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] lstat("./110/file0", [pid 5071] umount2("./109/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6422] mkdir("./file1", 000) = 0 [pid 6422] mkdir("./bus", 000) = 0 [pid 6422] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6424] <... ioctl resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./109/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6424] close(3 [pid 5071] <... openat resumed>) = 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6425] <... mount resumed>) = 0 [pid 6425] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6425] chdir("./file0") = 0 [pid 6425] ioctl(4, LOOP_CLR_FD) = 0 [ 186.244908][ T6423] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 186.263997][ T6424] loop5: detected capacity change from 0 to 8192 [ 186.268795][ T6425] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 186.279899][ T6422] overlayfs: upper fs needs to support d_type. [ 186.286808][ T6423] REISERFS (device loop0): using ordered data mode [ 186.287080][ T6422] overlayfs: upper fs does not support tmpfile. [pid 6425] close(4 [pid 6424] <... close resumed>) = 0 [pid 5071] fstat(4, [pid 5070] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... openat resumed>) = 4 [pid 6424] mkdir("./file0", 0777 [pid 5071] getdents64(4, [pid 5070] fstat(4, [pid 6425] <... close resumed>) = 0 [pid 6425] mkdir("./file1", 000) = 0 [pid 6425] mkdir("./bus", 000) = 0 [pid 6425] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6424] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6424] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] getdents64(4, [pid 5070] getdents64(4, [pid 5071] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] close(4 [pid 5070] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./109/file0") = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./110/file0" [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5070] getdents64(3, [pid 5071] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./109" [pid 5070] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./110") = 0 [pid 5071] mkdir("./110", 0777) = 0 [ 186.295190][ T6423] reiserfs: using flush barriers [ 186.310127][ T6425] overlayfs: upper fs needs to support d_type. [ 186.317516][ T6425] overlayfs: upper fs does not support tmpfile. [ 186.320104][ T6422] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 186.336742][ T6425] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 5070] mkdir("./111", 0777 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] close(3) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6430 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6430 attached [pid 6425] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6422] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6431 [pid 6425] creat("./file0/file0", 0202 [pid 6422] creat("./file0/file0", 0202 [pid 6425] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6422] <... creat resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 6431 attached [pid 6425] exit_group(0 [pid 6422] exit_group(0 [pid 6431] chdir("./111" [pid 6425] <... exit_group resumed>) = ? [pid 6422] <... exit_group resumed>) = ? [pid 6431] <... chdir resumed>) = 0 [pid 6425] +++ exited with 0 +++ [pid 6422] +++ exited with 0 +++ [pid 6431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6425, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6422, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 6431] setpgid(0, 0 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 6431] <... setpgid resumed>) = 0 [pid 5072] <... restart_syscall resumed>) = 0 [ 186.348978][ T6425] overlayfs: failed to resolve './file0': -2 [ 186.359790][ T6423] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 186.360980][ T6422] overlayfs: failed to resolve './file0': -2 [pid 6430] chdir("./110") = 0 [pid 6430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6430] setpgid(0, 0) = 0 [pid 6430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6430] write(3, "1000", 4) = 4 [pid 6430] close(3) = 0 [pid 6430] symlink("/dev/binderfs", "./binderfs" [pid 6431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... restart_syscall resumed>) = 0 [pid 6430] <... symlink resumed>) = 0 [pid 6430] memfd_create("syzkaller", 0) = 3 [pid 6430] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6431] <... openat resumed>) = 3 [pid 6431] write(3, "1000", 4 [pid 5072] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6431] <... write resumed>) = 4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6431] close(3 [pid 5072] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6431] <... close resumed>) = 0 [pid 5069] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6431] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... openat resumed>) = 3 [pid 6431] <... symlink resumed>) = 0 [pid 5072] fstat(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 186.403844][ T6424] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 186.425868][ T6424] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 186.435034][ T6423] REISERFS (device loop0): checking transaction log (loop0) [ 186.436456][ T6423] REISERFS (device loop0): Using r5 hash to sort names [pid 6431] memfd_create("syzkaller", 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6431] <... memfd_create resumed>) = 3 [pid 5072] getdents64(3, [pid 5069] <... openat resumed>) = 3 [pid 6431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5069] fstat(3, [pid 6431] <... mmap resumed>) = 0x7f7f7af80000 [pid 5072] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./111/binderfs", [pid 5069] getdents64(3, [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./111/binderfs" [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] <... unlink resumed>) = 0 [pid 5069] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./112/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./112/binderfs") = 0 [pid 5069] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 186.443572][ T6424] REISERFS (device loop5): using ordered data mode [ 186.457216][ T6424] reiserfs: using flush barriers [ 186.473529][ T6424] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 186.480827][ T6423] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6431] 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"..., 4194304 [ 186.530494][ T6424] REISERFS (device loop5): checking transaction log (loop5) [pid 6430] 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"..., 4194304 [pid 5069] <... umount2 resumed>) = 0 [pid 6431] <... write resumed>) = 4194304 [pid 6431] munmap(0x7f7f7af80000, 4194304) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6431] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 186.582674][ T6424] REISERFS (device loop5): Using r5 hash to sort names [ 186.616231][ T6431] loop2: detected capacity change from 0 to 8192 [pid 6431] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6430] <... write resumed>) = 4194304 [pid 5069] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./112/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6431] close(3 [pid 6430] munmap(0x7f7f7af80000, 4194304 [pid 6431] <... close resumed>) = 0 [pid 6423] <... mount resumed>) = 0 [pid 5069] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 5072] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5069] close(4 [pid 5072] fstat(4, [pid 5069] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] rmdir("./112/file0" [pid 5072] getdents64(4, [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(3, [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5072] close(4 [pid 5069] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 5069] rmdir("./112" [pid 6431] mkdir("./file0", 0777 [pid 6430] <... munmap resumed>) = 0 [pid 6423] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] rmdir("./111/file0" [pid 5069] <... rmdir resumed>) = 0 [pid 6431] <... mkdir resumed>) = 0 [pid 6430] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6423] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 6424] <... mount resumed>) = 0 [pid 5069] mkdir("./113", 0777 [pid 6431] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6430] <... openat resumed>) = 4 [pid 6423] chdir("./file0" [pid 6424] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] getdents64(3, [pid 5069] <... mkdir resumed>) = 0 [pid 6430] ioctl(4, LOOP_SET_FD, 3 [pid 6423] <... chdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3 [pid 5069] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./111" [pid 5069] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] mkdir("./112", 0777 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... mkdir resumed>) = 0 [pid 5069] close(3 [pid 6423] ioctl(4, LOOP_CLR_FD [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 6433 attached [pid 6430] <... ioctl resumed>) = 0 [pid 6424] <... openat resumed>) = 3 [pid 6423] <... ioctl resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6433 [pid 5072] close(3) = 0 [ 186.616429][ T6424] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 186.623663][ T6423] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 186.645222][ T6424] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 186.659783][ T6430] loop3: detected capacity change from 0 to 8192 [ 186.666665][ T6431] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6434 ./strace-static-x86_64: Process 6434 attached [pid 6433] chdir("./113" [pid 6430] close(3 [pid 6424] chdir("./file0" [pid 6423] close(4 [pid 6433] <... chdir resumed>) = 0 [pid 6434] chdir("./112" [pid 6433] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6430] <... close resumed>) = 0 [pid 6424] <... chdir resumed>) = 0 [pid 6423] <... close resumed>) = 0 [pid 6434] <... chdir resumed>) = 0 [pid 6433] <... prctl resumed>) = 0 [pid 6430] mkdir("./file0", 0777 [pid 6424] ioctl(4, LOOP_CLR_FD [pid 6423] mkdir("./file1", 000 [pid 6434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6433] setpgid(0, 0 [pid 6430] <... mkdir resumed>) = 0 [pid 6424] <... ioctl resumed>) = 0 [pid 6423] <... mkdir resumed>) = 0 [pid 6434] <... prctl resumed>) = 0 [pid 6433] <... setpgid resumed>) = 0 [pid 6430] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6424] close(4 [pid 6423] mkdir("./bus", 000 [pid 6434] setpgid(0, 0 [pid 6433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6424] <... close resumed>) = 0 [pid 6434] <... setpgid resumed>) = 0 [pid 6423] <... mkdir resumed>) = 0 [pid 6434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6424] mkdir("./file1", 000 [pid 6433] <... openat resumed>) = 3 [pid 6424] <... mkdir resumed>) = 0 [pid 6423] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6434] <... openat resumed>) = 3 [pid 6433] write(3, "1000", 4 [pid 6424] mkdir("./bus", 000 [pid 6434] write(3, "1000", 4 [pid 6433] <... write resumed>) = 4 [pid 6424] <... mkdir resumed>) = 0 [pid 6434] <... write resumed>) = 4 [ 186.680145][ T6431] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 186.690301][ T6431] REISERFS (device loop2): using ordered data mode [ 186.697806][ T6431] reiserfs: using flush barriers [ 186.708029][ T6431] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6434] close(3) = 0 [pid 6434] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6434] memfd_create("syzkaller", 0) = 3 [pid 6433] close(3 [pid 6424] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6434] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6433] <... close resumed>) = 0 [pid 6433] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6433] memfd_create("syzkaller", 0) = 3 [pid 6433] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [ 186.731351][ T6423] overlayfs: upper fs needs to support d_type. [ 186.737884][ T6423] overlayfs: upper fs does not support tmpfile. [ 186.746211][ T6424] overlayfs: upper fs needs to support d_type. [ 186.752422][ T6424] overlayfs: upper fs does not support tmpfile. [ 186.760660][ T6430] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 186.767609][ T6423] overlayfs: upper fs does not support RENAME_WHITEOUT. [pid 6424] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6424] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6424] exit_group(0) = ? [pid 6424] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6424, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5073] umount2("./113", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./113", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [ 186.786789][ T6424] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 186.797345][ T6424] overlayfs: failed to resolve './file0': -2 [ 186.822193][ T6431] REISERFS (device loop2): checking transaction log (loop2) [pid 5073] umount2("./113/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./113/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6434] 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"..., 4194304 [pid 5073] unlink("./113/binderfs" [pid 6433] 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"..., 4194304 [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6423] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6423] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6423] exit_group(0) = ? [pid 6423] +++ exited with 0 +++ [pid 5068] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6423, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- [pid 5068] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5068] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5068] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5068] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./111/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5068] unlink("./111/binderfs") = 0 [ 186.826634][ T6430] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 186.841217][ T6431] REISERFS (device loop2): Using r5 hash to sort names [ 186.842140][ T6423] overlayfs: failed to resolve './file0': -2 [ 186.852272][ T6431] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 186.860717][ T6430] REISERFS (device loop3): using ordered data mode [pid 5068] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6433] <... write resumed>) = 4194304 [pid 6433] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6433] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6433] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6433] close(3) = 0 [pid 6433] mkdir("./file0", 0777) = 0 [ 186.950576][ T6430] reiserfs: using flush barriers [ 186.951700][ T6431] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 186.964614][ T6433] loop1: detected capacity change from 0 to 8192 [ 186.973039][ T6430] REISERFS (device loop3): journal params: device loop3, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 6433] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6434] <... write resumed>) = 4194304 [pid 6431] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 6431] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6431] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6431] chdir("./file0" [pid 5073] lstat("./113/file0", [pid 6431] <... chdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6431] ioctl(4, LOOP_CLR_FD [pid 5073] umount2("./113/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6431] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6431] close(4 [pid 5073] openat(AT_FDCWD, "./113/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6431] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 6431] mkdir("./file1", 000 [pid 5073] fstat(4, [pid 6431] <... mkdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6431] mkdir("./bus", 000 [pid 5073] getdents64(4, [pid 6431] <... mkdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555555a03660 /* 2 entries */, 32768) = 48 [pid 6431] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5073] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./113/file0") = 0 [pid 5073] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./113") = 0 [pid 5073] mkdir("./114", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 6434] munmap(0x7f7f7af80000, 4194304 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6434] <... munmap resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6437 [pid 6434] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6434] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 6437 attached [pid 6437] chdir("./114") = 0 [pid 6437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6437] setpgid(0, 0) = 0 [pid 6437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6437] write(3, "1000", 4) = 4 [pid 6437] close(3) = 0 [pid 6437] symlink("/dev/binderfs", "./binderfs") = 0 [ 186.994243][ T6433] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 187.009526][ T6431] overlayfs: upper fs needs to support d_type. [ 187.024545][ T6434] loop4: detected capacity change from 0 to 8192 [ 187.032410][ T6431] overlayfs: upper fs does not support tmpfile. [pid 6437] memfd_create("syzkaller", 0) = 3 [pid 6437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6434] <... ioctl resumed>) = 0 [pid 6434] close(3) = 0 [pid 6434] mkdir("./file0", 0777) = 0 [pid 6434] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5068] <... umount2 resumed>) = 0 [ 187.056850][ T6433] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 187.070835][ T6431] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 187.079222][ T6434] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 187.082258][ T6430] REISERFS (device loop3): checking transaction log (loop3) [pid 5068] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5068] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5068] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5068] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5068] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5068] close(4) = 0 [pid 5068] rmdir("./111/file0") = 0 [pid 5068] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5068] close(3) = 0 [pid 5068] rmdir("./111") = 0 [pid 5068] mkdir("./112", 0777) = 0 [pid 5068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 6430] <... mount resumed>) = 0 [pid 5068] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 187.101361][ T6430] REISERFS (device loop3): Using r5 hash to sort names [ 187.110110][ T6430] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 187.111449][ T6433] REISERFS (device loop1): using ordered data mode [ 187.122910][ T6430] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 187.139860][ T6434] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 187.149608][ T6434] REISERFS (device loop4): using ordered data mode [pid 5068] close(3 [pid 6430] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5068] <... close resumed>) = 0 [pid 6430] <... openat resumed>) = 3 [pid 5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6439 ./strace-static-x86_64: Process 6439 attached [pid 6439] chdir("./112") = 0 [pid 6439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6439] setpgid(0, 0) = 0 [pid 6439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6439] write(3, "1000", 4) = 4 [pid 6439] close(3) = 0 [pid 6439] symlink("/dev/binderfs", "./binderfs" [pid 6430] chdir("./file0" [pid 6439] <... symlink resumed>) = 0 [pid 6437] 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"..., 4194304 [pid 6439] memfd_create("syzkaller", 0 [pid 6430] <... chdir resumed>) = 0 [pid 6439] <... memfd_create resumed>) = 3 [pid 6439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6431] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6430] ioctl(4, LOOP_CLR_FD [pid 6431] creat("./file0/file0", 0202) = -1 ENOENT (No such file or directory) [pid 6431] exit_group(0) = ? [ 187.156317][ T6434] reiserfs: using flush barriers [ 187.160577][ T6431] overlayfs: failed to resolve './file0': -2 [ 187.162615][ T6434] REISERFS (device loop4): journal params: device loop4, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 187.185090][ T6434] REISERFS (device loop4): checking transaction log (loop4) [ 187.194356][ T6434] REISERFS (device loop4): Using r5 hash to sort names [pid 6431] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6431, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5070] umount2("./111", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./111", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6430] <... ioctl resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 6430] close(4 [pid 5070] fstat(3, [pid 6434] <... mount resumed>) = 0 [pid 6430] <... close resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./111/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./111/binderfs", [pid 6434] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6430] mkdir("./file1", 000 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./111/binderfs") = 0 [pid 5070] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6434] <... openat resumed>) = 3 [pid 6430] <... mkdir resumed>) = 0 [ 187.202071][ T6434] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 187.215792][ T6434] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 187.225921][ T6433] reiserfs: using flush barriers [ 187.232024][ T6433] REISERFS (device loop1): journal params: device loop1, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 187.249858][ T6433] REISERFS (device loop1): checking transaction log (loop1) [pid 6434] chdir("./file0" [pid 6430] mkdir("./bus", 000 [pid 6434] <... chdir resumed>) = 0 [pid 6433] <... mount resumed>) = 0 [pid 6434] ioctl(4, LOOP_CLR_FD [pid 6433] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6430] <... mkdir resumed>) = 0 [pid 6434] <... ioctl resumed>) = 0 [pid 6433] <... openat resumed>) = 3 [pid 6430] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6434] close(4 [ 187.259968][ T6433] REISERFS (device loop1): Using r5 hash to sort names [ 187.268346][ T6433] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 187.281244][ T6433] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 187.299296][ T6430] overlayfs: upper fs needs to support d_type. [pid 6433] chdir("./file0" [pid 6439] 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"..., 4194304 [pid 6434] <... close resumed>) = 0 [pid 6433] <... chdir resumed>) = 0 [pid 6434] mkdir("./file1", 000 [pid 6433] ioctl(4, LOOP_CLR_FD [pid 6434] <... mkdir resumed>) = 0 [pid 6434] mkdir("./bus", 000 [pid 6433] <... ioctl resumed>) = 0 [pid 6434] <... mkdir resumed>) = 0 [pid 6433] close(4 [pid 6434] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 6433] <... close resumed>) = 0 [pid 6433] mkdir("./file1", 000) = 0 [pid 6433] mkdir("./bus", 000) = 0 [ 187.310590][ T6430] overlayfs: upper fs does not support tmpfile. [ 187.324808][ T6430] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 187.335176][ T6434] overlayfs: upper fs needs to support d_type. [ 187.352685][ T6434] overlayfs: upper fs does not support tmpfile. [pid 6433] mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,nfs_export=on," [pid 5070] <... umount2 resumed>) = 0 [ 187.365552][ T6433] overlayfs: upper fs needs to support d_type. [ 187.371760][ T6433] overlayfs: upper fs does not support tmpfile. [ 187.382485][ T6430] overlayfs: failed to resolve './file0': -2 [ 187.393965][ T6434] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 187.402718][ T6434] overlayfs: failed to resolve './file0': -2 [pid 6430] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6430] creat("./file0/file0", 0202 [pid 6434] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6430] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6434] creat("./file0/file0", 0202 [pid 6437] <... write resumed>) = 4194304 [pid 6434] <... creat resumed>) = -1 ENOENT (No such file or directory) [pid 6430] exit_group(0 [pid 6437] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6437] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6437] ioctl(4, LOOP_SET_FD, 3 [pid 5070] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./111/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./111/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./111/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./111/file0") = 0 [ 187.413677][ T6433] ------------[ cut here ]------------ [ 187.425367][ T6433] kernel BUG at fs/reiserfs/journal.c:3039! [ 187.432039][ T6433] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 187.438130][ T6433] CPU: 0 PID: 6433 Comm: syz-executor763 Not tainted 6.2.0-rc3-syzkaller-00376-g7c6984405241 #0 [ 187.438306][ T6437] loop5: detected capacity change from 0 to 8192 [ 187.448528][ T6433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [pid 5070] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./111") = 0 [pid 5070] mkdir("./112", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6440 ./strace-static-x86_64: Process 6440 attached [pid 6440] chdir("./112") = 0 [pid 6440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6440] setpgid(0, 0) = 0 [ 187.448539][ T6433] RIP: 0010:do_journal_begin_r+0x105b/0x1070 [ 187.470907][ T6433] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 22 ff ff ff 48 89 df e8 66 c2 b1 ff e9 15 ff ff ff e8 dc 18 5c ff 0f 0b e8 d5 18 5c ff <0f> 0b e8 9e 5d 81 08 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 [ 187.490530][ T6433] RSP: 0018:ffffc90002f9f280 EFLAGS: 00010293 [ 187.496630][ T6433] RAX: ffffffff822fc32b RBX: 000000001100ec76 RCX: ffff888027d88000 [ 187.504617][ T6433] RDX: 0000000000000000 RSI: 000000001100ec76 RDI: 0000000000000100 [ 187.512593][ T6433] RBP: ffffc90002f9f428 R08: ffffffff822fb402 R09: fffffbfff1d2d266 [ 187.520583][ T6433] R10: fffffbfff1d2d266 R11: 1ffffffff1d2d265 R12: ffff88807ae24678 [ 187.528560][ T6433] R13: ffffc90003496214 R14: dffffc0000000000 R15: 0000000000000100 [ 187.536535][ T6433] FS: 00005555559fa300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 187.545491][ T6433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 187.552092][ T6433] CR2: 00007f7f83441140 CR3: 000000001e420000 CR4: 00000000003506f0 [ 187.560075][ T6433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 187.568050][ T6433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 187.571594][ T6440] loop2: detected capacity change from 0 to 8192 [ 187.576013][ T6433] Call Trace: [ 187.576021][ T6433] [ 187.576030][ T6433] ? __mutex_lock_common+0x45f/0x26e0 [ 187.576069][ T6433] ? __dquot_initialize+0x202/0xcf0 [ 187.599068][ T6433] ? reiserfs_write_lock+0x77/0xd0 [ 187.604175][ T6433] ? journal_join_abort+0xe0/0xe0 [ 187.609189][ T6433] ? bpf_lsm_inode_init_security+0x5/0x10 [ 187.614898][ T6433] ? security_old_inode_init_security+0x10b/0x150 [ 187.621306][ T6433] journal_begin+0x14b/0x350 [ 187.625885][ T6433] reiserfs_create+0x2d1/0x660 [ 187.630665][ T6433] ? reiserfs_lookup+0x490/0x490 [ 187.635591][ T6433] ? privileged_wrt_inode_uidgid+0x20e/0x260 [ 187.641563][ T6433] ? generic_permission+0x289/0x500 [ 187.646752][ T6433] ? bpf_lsm_inode_create+0x5/0x10 [ 187.651865][ T6433] ? security_inode_create+0xdd/0x120 [ 187.657227][ T6433] vfs_create+0x302/0x490 [ 187.661558][ T6433] ovl_do_create+0x76/0xb0 [ 187.665961][ T6433] ovl_create_real+0x3c1/0x4b0 [ 187.670714][ T6433] ? ovl_mkdir_real+0x210/0x210 [ 187.675551][ T6433] ? find_next_clump8+0x1b0/0x1b0 [ 187.680561][ T6433] ? preempt_schedule_common+0xb7/0xe0 [ 187.686008][ T6433] ovl_check_rename_whiteout+0x138/0x5e0 [ 187.691634][ T6433] ? __irq_work_queue_local+0x121/0x180 [ 187.697176][ T6433] ? ovl_workdir_create+0x8f0/0x8f0 [ 187.702373][ T6433] ? vprintk_emit+0x109/0x1e0 [ 187.707043][ T6433] ? task_work_add+0x2d0/0x340 [ 187.711799][ T6433] ? _printk+0xc0/0x100 [ 187.715949][ T6433] ? rcu_lock_release+0x20/0x20 [ 187.720793][ T6433] ? fput+0xe7/0x1a0 [ 187.724686][ T6433] ? fput+0x155/0x1a0 [ 187.728670][ T6433] ovl_make_workdir+0x3e4/0xdf0 [ 187.733523][ T6433] ? ovl_mount_dir_noesc+0x190/0x190 [ 187.738809][ T6433] ? _raw_spin_unlock+0x24/0x40 [ 187.743652][ T6433] ovl_get_workdir+0x2e4/0x410 [ 187.748408][ T6433] ? ovl_get_upper+0x5d0/0x5d0 [ 187.753160][ T6433] ? ovl_fill_super+0x1299/0x2790 [ 187.758171][ T6433] ? trace_kmalloc+0x30/0xf0 [ 187.762760][ T6433] ? __kmalloc+0xcc/0x190 [ 187.767090][ T6433] ovl_fill_super+0x19d7/0x2790 [ 187.771938][ T6433] ? ovl_mount+0x30/0x30 [ 187.776200][ T6433] ? sget+0x523/0x560 [ 187.780185][ T6433] ? free_anon_bdev+0x20/0x20 [ 187.784861][ T6433] ? ovl_mount+0x30/0x30 [ 187.789094][ T6433] mount_nodev+0x52/0xe0 [ 187.793329][ T6433] legacy_get_tree+0xea/0x180 [ 187.797999][ T6433] ? virtio_fs_zero_page_range+0x150/0x150 [ 187.803797][ T6433] vfs_get_tree+0x88/0x270 [ 187.808206][ T6433] do_new_mount+0x289/0xad0 [ 187.812706][ T6433] ? do_move_mount_old+0x150/0x150 [ 187.817808][ T6433] ? user_path_at_empty+0x149/0x1a0 [ 187.822999][ T6433] __se_sys_mount+0x2d3/0x3c0 [ 187.827663][ T6433] ? __x64_sys_mount+0xc0/0xc0 [ 187.832412][ T6433] ? syscall_enter_from_user_mode+0x2e/0x1d0 [ 187.838377][ T6433] ? __x64_sys_mount+0x1c/0xc0 [ 187.843127][ T6433] do_syscall_64+0x3d/0xb0 [ 187.847533][ T6433] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 187.853415][ T6433] RIP: 0033:0x7f7f833cdae9 [ 187.857816][ T6433] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 [ 187.877409][ T6433] RSP: 002b:00007fff95436b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 187.885807][ T6433] RAX: ffffffffffffffda RBX: 000000000002d550 RCX: 00007f7f833cdae9 [ 187.893767][ T6433] RDX: 0000000020000080 RSI: 00000000200000c0 RDI: 0000000000000000 [ 187.901724][ T6433] RBP: 0000000000000000 R08: 00000000200001c0 R09: 00007fff95436bb0 [ 187.909683][ T6433] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff95436bac [pid 6440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6440] write(3, "1000", 4) = 4 [pid 6440] close(3) = 0 [pid 6440] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6440] memfd_create("syzkaller", 0) = 3 [pid 6440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6437] <... ioctl resumed>) = 0 [pid 6437] close(3) = 0 [pid 6437] mkdir("./file0", 0777) = 0 [pid 6437] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6440] 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"..., 4194304) = 4194304 [pid 6440] munmap(0x7f7f7af80000, 4194304) = 0 [pid 6440] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6440] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6440] close(3) = 0 [pid 6434] exit_group(0 [pid 6430] <... exit_group resumed>) = ? [pid 6440] mkdir("./file0", 0777 [pid 6434] <... exit_group resumed>) = ? [pid 6434] +++ exited with 0 +++ [pid 6440] <... mkdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6434, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 6440] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6430] +++ exited with 0 +++ [pid 5072] umount2("./112", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6430, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5072] openat(AT_FDCWD, "./112", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5072] <... openat resumed>) = 3 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5071] umount2("./110", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./112/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./110", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5072] lstat("./112/binderfs", [pid 5071] fstat(3, [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] unlink("./112/binderfs" [pid 5071] getdents64(3, [pid 5072] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x5555559fb620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./110/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6439] <... write resumed>) = 4194304 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6439] munmap(0x7f7f7af80000, 4194304 [pid 5071] lstat("./110/binderfs", [pid 6439] <... munmap resumed>) = 0 [ 187.917654][ T6433] R13: 00007fff95436be0 R14: 00007fff95436bc0 R15: 0000000000000071 [ 187.925619][ T6433] [ 187.928625][ T6433] Modules linked in: [ 187.949354][ T6433] ---[ end trace 0000000000000000 ]--- [ 187.955281][ T6433] RIP: 0010:do_journal_begin_r+0x105b/0x1070 [pid 6439] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6439] <... openat resumed>) = 4 [ 187.962420][ T6440] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 187.962931][ T6433] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 22 ff ff ff 48 89 df e8 66 c2 b1 ff e9 15 ff ff ff e8 dc 18 5c ff 0f 0b e8 d5 18 5c ff <0f> 0b e8 9e 5d 81 08 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 [ 187.980880][ T6440] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 187.995817][ T6437] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] unlink("./110/binderfs" [pid 6439] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6439] <... ioctl resumed>) = 0 [pid 6439] close(3) = 0 [pid 6439] mkdir("./file0", 0777) = 0 [ 188.018127][ T6437] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 188.018698][ T6439] loop0: detected capacity change from 0 to 8192 [ 188.027791][ T6437] REISERFS (device loop5): using ordered data mode [ 188.048215][ T6437] reiserfs: using flush barriers [ 188.053962][ T6440] REISERFS (device loop2): using ordered data mode [ 188.062658][ T6440] reiserfs: using flush barriers [pid 6439] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./112/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./112/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./112/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./112/file0") = 0 [pid 5072] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./112") = 0 [pid 5072] mkdir("./113", 0777) = 0 [ 188.068243][ T6439] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 188.082919][ T6437] REISERFS (device loop5): journal params: device loop5, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 188.087082][ T6440] REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [pid 5072] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... umount2 resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] lstat("./110/file0", [pid 5072] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... close resumed>) = 0 [pid 5071] umount2("./110/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./110/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, [pid 5072] <... clone resumed>, child_tidptr=0x5555559fa5d0) = 6444 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555555a03660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555555a03660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./110/file0") = 0 [pid 5071] getdents64(3, 0x5555559fb620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./110") = 0 [pid 5071] mkdir("./111", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555559fa5d0) = 6445 [ 188.101325][ T6433] RSP: 0018:ffffc90002f9f280 EFLAGS: 00010293 [ 188.115132][ T6439] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 188.115936][ T6440] REISERFS (device loop2): checking transaction log (loop2) [ 188.121720][ T6439] REISERFS (device loop0): using ordered data mode [ 188.130980][ T6437] REISERFS (device loop5): checking transaction log (loop5) [ 188.152832][ T6440] REISERFS (device loop2): Using r5 hash to sort names [pid 6440] <... mount resumed>) = 0 [pid 6440] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 6445 attached [pid 6445] chdir("./111" [pid 6440] <... openat resumed>) = 3 ./strace-static-x86_64: Process 6444 attached [pid 6445] <... chdir resumed>) = 0 [pid 6445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6444] chdir("./113" [pid 6445] <... prctl resumed>) = 0 [pid 6444] <... chdir resumed>) = 0 [pid 6445] setpgid(0, 0 [pid 6444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6445] <... setpgid resumed>) = 0 [pid 6445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6444] <... prctl resumed>) = 0 [pid 6445] <... openat resumed>) = 3 [pid 6444] setpgid(0, 0 [pid 6445] write(3, "1000", 4 [pid 6444] <... setpgid resumed>) = 0 [pid 6445] <... write resumed>) = 4 [pid 6444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6440] chdir("./file0" [pid 6445] close(3) = 0 [pid 6444] <... openat resumed>) = 3 [pid 6445] symlink("/dev/binderfs", "./binderfs" [pid 6444] write(3, "1000", 4 [pid 6445] <... symlink resumed>) = 0 [pid 6444] <... write resumed>) = 4 [pid 6440] <... chdir resumed>) = 0 [pid 6445] memfd_create("syzkaller", 0 [pid 6444] close(3 [pid 6445] <... memfd_create resumed>) = 3 [ 188.160621][ T6440] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 188.164544][ T6437] REISERFS (device loop5): Using r5 hash to sort names [ 188.173561][ T6440] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 188.189619][ T6433] [ 188.192127][ T6433] RAX: ffffffff822fc32b RBX: 000000001100ec76 RCX: ffff888027d88000 [ 188.200553][ T6433] RDX: 0000000000000000 RSI: 000000001100ec76 RDI: 0000000000000100 [ 188.209261][ T6433] RBP: ffffc90002f9f428 R08: ffffffff822fb402 R09: fffffbfff1d2d266 [pid 6444] <... close resumed>) = 0 [pid 6445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6444] symlink("/dev/binderfs", "./binderfs" [pid 6440] ioctl(4, LOOP_CLR_FD [pid 6445] <... mmap resumed>) = 0x7f7f7af80000 [pid 6444] <... symlink resumed>) = 0 [pid 6444] memfd_create("syzkaller", 0) = 3 [pid 6440] <... ioctl resumed>) = 0 [pid 6444] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f7af80000 [pid 6440] close(4) = 0 [pid 6440] mkdir("./file1", 000) = 0 [ 188.217661][ T6433] R10: fffffbfff1d2d266 R11: 1ffffffff1d2d265 R12: ffff88807ae24678 [ 188.226130][ T6433] R13: ffffc90003496214 R14: dffffc0000000000 R15: 0000000000000100 [ 188.234501][ T6433] FS: 00005555559fa300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 188.245634][ T6439] reiserfs: using flush barriers [ 188.255727][ T6433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [pid 6440] mkdir("./bus", 000) = 0 [ 188.262797][ T6433] CR2: 0000555555a0b668 CR3: 000000001e420000 CR4: 00000000003506f0 [ 188.271131][ T6433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 188.278996][ T6437] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 188.279710][ T6433] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 188.292042][ T6439] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 188.300480][ T6433] Kernel panic - not syncing: Fatal exception [ 188.316011][ T6433] Kernel Offset: disabled [ 188.326376][ T6433] Rebooting in 86400 seconds..