./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3376061748 <...> 6974] ioctl(4, LOOP_SET_FD, 3 [pid 6971] close(3) = 0 [ 218.065351][ T6972] loop0: detected capacity change from 0 to 8192 [ 218.065897][ T6970] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 218.082811][ T6969] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 218.097127][ T6969] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 218.100712][ T6971] loop4: detected capacity change from 0 to 8192 [pid 6971] mkdir("./file0", 0777) = 0 [pid 6971] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6973] <... write resumed>) = 4194304 [pid 6973] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6973] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 6973] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6974] <... ioctl resumed>) = 0 [pid 6974] close(3) = 0 [pid 6974] mkdir("./file0", 0777) = 0 [pid 6973] close(3 [ 218.114850][ T6974] loop3: detected capacity change from 0 to 8192 [ 218.119587][ T6973] loop2: detected capacity change from 0 to 8192 [ 218.127921][ T6970] REISERFS (device loop5): using ordered data mode [ 218.134874][ T6970] reiserfs: using flush barriers [ 218.138690][ T6972] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 218.141234][ T6969] REISERFS (device loop1): using ordered data mode [pid 6974] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6973] <... close resumed>) = 0 [pid 6973] mkdir("./file0", 0777) = 0 [ 218.161051][ T6970] 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 [ 218.177236][ T6969] reiserfs: using flush barriers [ 218.180579][ T6972] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 218.183647][ T6974] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 218.193591][ T6970] REISERFS (device loop5): checking transaction log (loop5) [ 218.205305][ T6971] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 218.213157][ T6972] REISERFS (device loop0): using ordered data mode [ 218.226403][ T6974] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 218.233632][ T6970] REISERFS (device loop5): Using r5 hash to sort names [ 218.240551][ T6973] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 218.247778][ T6971] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 218.260444][ T6969] 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 [ 218.269970][ T6971] REISERFS (device loop4): using ordered data mode [ 218.286595][ T6972] reiserfs: using flush barriers [ 218.292420][ T6971] reiserfs: using flush barriers [ 218.298041][ T6970] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 218.303453][ T6974] REISERFS (device loop3): using ordered data mode [ 218.315334][ T6971] 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 [ 218.321496][ T6974] reiserfs: using flush barriers [ 218.344706][ T6974] 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 [ 218.345120][ T6972] 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 [ 218.361253][ T6974] REISERFS (device loop3): checking transaction log (loop3) [ 218.377406][ T6970] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 218.385183][ T6973] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 218.394514][ T6971] REISERFS (device loop4): checking transaction log (loop4) [pid 6973] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6970] <... mount resumed>) = 0 [pid 6970] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 218.403898][ T6969] REISERFS (device loop1): checking transaction log (loop1) [ 218.412628][ T6972] REISERFS (device loop0): checking transaction log (loop0) [ 218.420144][ T6973] REISERFS (device loop2): using ordered data mode [ 218.427771][ T6971] REISERFS (device loop4): Using r5 hash to sort names [ 218.434075][ T6973] reiserfs: using flush barriers [ 218.441612][ T6972] REISERFS (device loop0): Using r5 hash to sort names [ 218.445451][ T6974] REISERFS (device loop3): Using r5 hash to sort names [ 218.452170][ T6971] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 218.471869][ T6972] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 218.472439][ T6969] REISERFS (device loop1): Using r5 hash to sort names [ 218.484636][ T6972] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 218.494049][ T6973] 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 6970] chdir("./file0") = 0 [pid 6970] ioctl(4, LOOP_CLR_FD [pid 6972] <... mount resumed>) = 0 [pid 6970] <... ioctl resumed>) = 0 [pid 6972] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6970] close(4 [pid 6971] <... mount resumed>) = 0 [pid 6970] <... close resumed>) = 0 [pid 6972] <... openat resumed>) = 3 [pid 6970] mkdir(NULL, 000 [pid 6972] chdir("./file0" [pid 6971] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6970] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 6970] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6972] <... chdir resumed>) = 0 [ 218.501335][ T6971] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 218.518007][ T6974] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 218.541078][ T6973] REISERFS (device loop2): checking transaction log (loop2) [ 218.550969][ T6974] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6972] ioctl(4, LOOP_CLR_FD [pid 6971] <... openat resumed>) = 3 [pid 6970] <... openat resumed>) = 4 [pid 6974] <... mount resumed>) = 0 [pid 6974] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6974] chdir("./file0") = 0 [pid 6974] ioctl(4, LOOP_CLR_FD) = 0 [pid 6974] close(4) = 0 [pid 6974] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6974] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6974] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6974] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6974] exit_group(0) = ? [pid 6974] +++ exited with 0 +++ [pid 6970] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6974, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 6970] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 6970] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6970] exit_group(0 [pid 5072] umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6970] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6972] <... ioctl resumed>) = 0 [pid 6972] close(4) = 0 [pid 6972] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6972] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6970] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6970, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5072] <... openat resumed>) = 3 [pid 6971] chdir("./file0" [pid 5072] fstat(3, [pid 6971] <... chdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6971] ioctl(4, LOOP_CLR_FD [pid 5074] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] getdents64(3, [pid 6972] <... openat resumed>) = 4 [pid 6971] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6972] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 6971] close(4 [pid 6972] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6971] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6971] mkdir(NULL, 000 [pid 5074] fstat(3, [pid 5072] lstat("./156/binderfs", [pid 6972] mount(NULL, "./bus", NULL, 0, NULL [pid 6971] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6972] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 6971] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] getdents64(3, [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6972] exit_group(0 [pid 6971] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] unlink("./156/binderfs" [pid 6972] <... exit_group resumed>) = ? [pid 6971] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 6972] +++ exited with 0 +++ [pid 6971] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6971] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] lstat("./161/binderfs", [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6972, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 6971] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 218.551966][ T6969] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 218.579180][ T6973] REISERFS (device loop2): Using r5 hash to sort names [ 218.596774][ T6973] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6971] exit_group(0 [pid 5074] unlink("./161/binderfs" [pid 6971] <... exit_group resumed>) = ? [pid 5074] <... unlink resumed>) = 0 [pid 6971] +++ exited with 0 +++ [pid 5074] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./153", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6971, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} --- [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6973] <... mount resumed>) = 0 [pid 6973] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5069] openat(AT_FDCWD, "./153", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6973] <... openat resumed>) = 3 [pid 6973] chdir("./file0") = 0 [pid 6973] ioctl(4, LOOP_CLR_FD [pid 5073] <... restart_syscall resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, [pid 6973] <... ioctl resumed>) = 0 [pid 6973] close(4) = 0 [pid 6973] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6973] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, [pid 6973] <... openat resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6973] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6973] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 3 [pid 5069] umount2("./153/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] fstat(3, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./153/binderfs", [pid 5073] getdents64(3, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6973] mount(NULL, "./bus", NULL, 0, NULL [pid 5069] unlink("./153/binderfs" [pid 6973] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6973] exit_group(0 [pid 5069] <... unlink resumed>) = 0 [pid 5073] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./158/binderfs", [pid 6973] <... exit_group resumed>) = ? [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./158/binderfs") = 0 [pid 6973] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6973, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./157", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./157/binderfs") = 0 [pid 5071] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6969] <... mount resumed>) = 0 [pid 6969] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6969] chdir("./file0") = 0 [pid 6969] ioctl(4, LOOP_CLR_FD) = 0 [pid 6969] close(4) = 0 [pid 6969] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6969] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6969] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6969] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6969] exit_group(0) = ? [ 218.623963][ T6973] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 218.634948][ T6969] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 6969] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6969, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./156", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./156/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./156/binderfs") = 0 [pid 5070] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./161/file0", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] lstat("./157/file0", [pid 5074] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 4 [pid 5071] openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] fstat(4, [pid 5071] <... openat resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(4, [pid 5074] getdents64(4, [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, [pid 5074] getdents64(4, [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5074] close(4 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] close(4 [pid 5074] rmdir("./161/file0" [pid 5071] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] rmdir("./157/file0" [pid 5074] getdents64(3, [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(3, [pid 5074] close(3 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] close(3 [pid 5074] rmdir("./161" [pid 5071] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] rmdir("./157" [pid 5074] mkdir("./162", 0777 [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5071] mkdir("./158", 0777 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5071] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5074] close(3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] <... close resumed>) = 0 [pid 5071] close(3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6981 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6982 [pid 5072] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./156/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./156/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./156/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./156") = 0 [pid 5072] mkdir("./157", 0777./strace-static-x86_64: Process 6981 attached ) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6981] chdir("./162" [pid 5072] <... openat resumed>) = 3 [pid 6981] <... chdir resumed>) = 0 [pid 6981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6981] <... prctl resumed>) = 0 [pid 6981] setpgid(0, 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6981] <... setpgid resumed>) = 0 [pid 5072] close(3 [pid 6981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... close resumed>) = 0 [pid 6981] <... openat resumed>) = 3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6981] write(3, "1000", 4) = 4 [pid 6981] close(3 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6983 [pid 6981] <... close resumed>) = 0 [pid 6981] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6981] memfd_create("syzkaller", 0) = 3 [pid 6981] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 ./strace-static-x86_64: Process 6983 attached ./strace-static-x86_64: Process 6982 attached [pid 6983] chdir("./157") = 0 [pid 6982] chdir("./158") = 0 [pid 6983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6983] setpgid(0, 0) = 0 [pid 6983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6982] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6983] <... openat resumed>) = 3 [pid 6982] setpgid(0, 0 [pid 6983] write(3, "1000", 4) = 4 [pid 6983] close(3) = 0 [pid 6983] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6982] <... setpgid resumed>) = 0 [pid 6983] memfd_create("syzkaller", 0 [pid 6982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6983] <... memfd_create resumed>) = 3 [pid 6983] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 6982] <... openat resumed>) = 3 [pid 6982] write(3, "1000", 4 [pid 5070] <... umount2 resumed>) = 0 [pid 6982] <... write resumed>) = 4 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6982] close(3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6982] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 6982] symlink("/dev/binderfs", "./binderfs" [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6982] <... symlink resumed>) = 0 [pid 6982] memfd_create("syzkaller", 0) = 3 [pid 5073] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./158/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./158" [pid 6982] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... rmdir resumed>) = 0 [pid 6982] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] mkdir("./159", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", 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=0x555556cad5d0) = 6984 [pid 5070] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 6984 attached [pid 6984] chdir("./159" [pid 5070] lstat("./156/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6984] <... chdir resumed>) = 0 [pid 6984] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6984] setpgid(0, 0) = 0 [pid 6984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./153/file0", [pid 6984] write(3, "1000", 4) = 4 [pid 6984] close(3 [pid 5070] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6984] <... close resumed>) = 0 [pid 6984] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5069] umount2("./153/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6984] memfd_create("syzkaller", 0 [pid 6983] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6981] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 6984] <... memfd_create resumed>) = 3 [pid 6984] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] openat(AT_FDCWD, "./156/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6984] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5070] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./153/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] fstat(4, [pid 5069] <... openat resumed>) = 4 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(4, [pid 5070] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 6982] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(4, [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5069] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./156/file0" [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] close(4 [pid 5070] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] rmdir("./153/file0" [pid 5070] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 5070] rmdir("./156" [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5069] close(3 [pid 5070] mkdir("./157", 0777 [pid 5069] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] rmdir("./153" [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] <... rmdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] mkdir("./154", 0777 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... mkdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5070] close(3 [pid 5069] <... openat resumed>) = 3 [pid 5070] <... close resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] 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 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6985 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6984] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 6985 attached [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6986 [pid 6985] chdir("./157") = 0 [pid 6985] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 6986 attached [pid 6985] setpgid(0, 0 [pid 6986] chdir("./154" [pid 6985] <... setpgid resumed>) = 0 [pid 6986] <... chdir resumed>) = 0 [pid 6985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6986] setpgid(0, 0) = 0 [pid 6986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6985] <... openat resumed>) = 3 [pid 6986] <... openat resumed>) = 3 [pid 6985] write(3, "1000", 4 [pid 6986] write(3, "1000", 4 [pid 6985] <... write resumed>) = 4 [pid 6986] <... write resumed>) = 4 [pid 6986] close(3 [pid 6985] close(3 [pid 6986] <... close resumed>) = 0 [pid 6986] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6986] memfd_create("syzkaller", 0 [pid 6985] <... close resumed>) = 0 [pid 6986] <... memfd_create resumed>) = 3 [pid 6985] symlink("/dev/binderfs", "./binderfs" [pid 6986] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 6985] <... symlink resumed>) = 0 [pid 6985] memfd_create("syzkaller", 0) = 3 [pid 6985] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 6981] <... write resumed>) = 4194304 [pid 6981] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6981] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 6981] ioctl(4, LOOP_SET_FD, 3 [pid 6983] <... write resumed>) = 4194304 [pid 6983] munmap(0x7f8a1b2e3000, 4194304 [pid 6982] <... write resumed>) = 4194304 [pid 6981] <... ioctl resumed>) = 0 [pid 6981] close(3) = 0 [pid 6981] mkdir("./file0", 0777 [pid 6983] <... munmap resumed>) = 0 [pid 6983] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6981] <... mkdir resumed>) = 0 [pid 6986] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6985] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6983] <... openat resumed>) = 4 [pid 6982] munmap(0x7f8a1b2e3000, 4194304 [ 219.068517][ T6981] loop5: detected capacity change from 0 to 8192 [pid 6981] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6983] ioctl(4, LOOP_SET_FD, 3 [pid 6982] <... munmap resumed>) = 0 [pid 6982] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6984] <... write resumed>) = 4194304 [pid 6983] <... ioctl resumed>) = 0 [pid 6982] <... openat resumed>) = 4 [pid 6984] munmap(0x7f8a1b2e3000, 4194304 [pid 6983] close(3 [pid 6982] ioctl(4, LOOP_SET_FD, 3 [pid 6984] <... munmap resumed>) = 0 [pid 6982] <... ioctl resumed>) = 0 [pid 6983] <... close resumed>) = 0 [pid 6983] mkdir("./file0", 0777 [pid 6984] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 6983] <... mkdir resumed>) = 0 [pid 6984] <... openat resumed>) = 4 [pid 6983] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6984] ioctl(4, LOOP_SET_FD, 3 [pid 6982] close(3) = 0 [pid 6984] <... ioctl resumed>) = 0 [pid 6984] close(3 [ 219.133392][ T6983] loop3: detected capacity change from 0 to 8192 [ 219.141055][ T6981] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.156627][ T6982] loop2: detected capacity change from 0 to 8192 [ 219.168196][ T6984] loop4: detected capacity change from 0 to 8192 [pid 6982] mkdir("./file0", 0777 [pid 6984] <... close resumed>) = 0 [pid 6982] <... mkdir resumed>) = 0 [pid 6984] mkdir("./file0", 0777 [pid 6982] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6984] <... mkdir resumed>) = 0 [pid 6984] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6986] <... write resumed>) = 4194304 [pid 6986] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6986] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 219.180151][ T6983] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.181529][ T6981] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 219.202558][ T6983] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 219.219313][ T6983] REISERFS (device loop3): using ordered data mode [ 219.226636][ T6981] REISERFS (device loop5): using ordered data mode [ 219.230961][ T6986] loop0: detected capacity change from 0 to 8192 [ 219.234059][ T6982] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.239647][ T6981] reiserfs: using flush barriers [ 219.252928][ T6984] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.258908][ T6982] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 6986] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6986] close(3 [pid 6985] <... write resumed>) = 4194304 [pid 6986] <... close resumed>) = 0 [pid 6986] mkdir("./file0", 0777) = 0 [ 219.278214][ T6983] reiserfs: using flush barriers [ 219.279702][ T6981] 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 [ 219.291987][ T6983] 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 [ 219.305005][ T6981] REISERFS (device loop5): checking transaction log (loop5) [ 219.324372][ T6984] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 6986] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 219.334168][ T6984] REISERFS (device loop4): using ordered data mode [ 219.334574][ T6986] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.340761][ T6984] reiserfs: using flush barriers [ 219.341928][ T6982] REISERFS (device loop2): using ordered data mode [ 219.353874][ T6984] 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 6985] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6985] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 219.358728][ T6982] reiserfs: using flush barriers [ 219.382844][ T6981] REISERFS (device loop5): Using r5 hash to sort names [ 219.386719][ T6983] REISERFS (device loop3): checking transaction log (loop3) [ 219.397742][ T6985] loop1: detected capacity change from 0 to 8192 [ 219.400872][ T6986] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 219.409318][ T6981] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6985] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6985] close(3) = 0 [pid 6985] mkdir("./file0", 0777) = 0 [ 219.416353][ T6986] REISERFS (device loop0): using ordered data mode [ 219.435281][ T6986] reiserfs: using flush barriers [ 219.437084][ T6983] REISERFS (device loop3): Using r5 hash to sort names [ 219.441676][ T6984] REISERFS (device loop4): checking transaction log (loop4) [ 219.453368][ T6983] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 219.454486][ T6986] 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 [ 219.477019][ T6982] 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 [ 219.486091][ T6986] REISERFS (device loop0): checking transaction log (loop0) [ 219.502604][ T6985] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 219.509605][ T6984] REISERFS (device loop4): Using r5 hash to sort names [ 219.523639][ T6981] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 219.529650][ T6986] REISERFS (device loop0): Using r5 hash to sort names [ 219.540257][ T6983] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 219.544933][ T6986] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 219.556376][ T6984] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 6985] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6986] <... mount resumed>) = 0 [pid 6986] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6983] <... mount resumed>) = 0 [pid 6981] <... mount resumed>) = 0 [pid 6986] <... openat resumed>) = 3 [pid 6983] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6981] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6986] chdir("./file0" [pid 6983] <... openat resumed>) = 3 [pid 6981] <... openat resumed>) = 3 [pid 6986] <... chdir resumed>) = 0 [pid 6983] chdir("./file0" [pid 6981] chdir("./file0" [pid 6986] ioctl(4, LOOP_CLR_FD [pid 6983] <... chdir resumed>) = 0 [pid 6981] <... chdir resumed>) = 0 [pid 6986] <... ioctl resumed>) = 0 [pid 6983] ioctl(4, LOOP_CLR_FD [pid 6981] ioctl(4, LOOP_CLR_FD [pid 6986] close(4 [pid 6983] <... ioctl resumed>) = 0 [pid 6981] <... ioctl resumed>) = 0 [pid 6986] <... close resumed>) = 0 [pid 6983] close(4) = 0 [pid 6983] mkdir(NULL, 000 [pid 6986] mkdir(NULL, 000 [pid 6983] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 6981] close(4 [pid 6983] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 219.566660][ T6986] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 219.589242][ T6982] REISERFS (device loop2): checking transaction log (loop2) [ 219.590986][ T6985] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 219.597714][ T6984] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 219.619810][ T6985] REISERFS (device loop1): using ordered data mode [ 219.625686][ T6982] REISERFS (device loop2): Using r5 hash to sort names [pid 6983] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6983] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6983] exit_group(0) = ? [pid 6986] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 6983] +++ exited with 0 +++ [pid 6981] <... close resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6983, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=13 /* 0.13 s */} --- [pid 5072] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6986] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6984] <... mount resumed>) = 0 [pid 6982] <... mount resumed>) = 0 [pid 6981] mkdir(NULL, 000 [pid 5072] <... openat resumed>) = 3 [pid 6986] <... openat resumed>) = 4 [pid 6984] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6982] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6981] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5072] fstat(3, [pid 6986] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 6984] <... openat resumed>) = 3 [pid 6982] <... openat resumed>) = 3 [pid 6981] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6986] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 6984] chdir("./file0" [pid 5072] getdents64(3, [pid 6984] <... chdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6984] ioctl(4, LOOP_CLR_FD [pid 5072] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6984] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6984] close(4 [pid 5072] lstat("./157/binderfs", [pid 6984] <... close resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6984] mkdir(NULL, 000 [pid 5072] unlink("./157/binderfs" [pid 6984] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5072] <... unlink resumed>) = 0 [pid 6984] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6986] mount(NULL, "./bus", NULL, 0, NULL [pid 6984] <... openat resumed>) = 4 [pid 6982] chdir("./file0" [pid 6981] <... openat resumed>) = 4 [pid 6986] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 219.633735][ T6982] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 219.646829][ T6982] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 219.656419][ T6985] reiserfs: using flush barriers [ 219.665011][ T6985] 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 6984] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 6982] <... chdir resumed>) = 0 [pid 6981] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 6986] exit_group(0 [pid 6984] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 6984] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6984] exit_group(0) = ? [pid 6986] <... exit_group resumed>) = ? [pid 6984] +++ exited with 0 +++ [pid 6982] ioctl(4, LOOP_CLR_FD [pid 6981] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6984, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 6986] +++ exited with 0 +++ [pid 6982] <... ioctl resumed>) = 0 [pid 6981] mount(NULL, "./bus", NULL, 0, NULL [pid 6982] close(4 [pid 6981] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... umount2 resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6986, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 6982] <... close resumed>) = 0 [pid 6981] exit_group(0 [pid 5072] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6982] mkdir(NULL, 000 [pid 6981] <... exit_group resumed>) = ? [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./157/file0", [pid 5073] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./154", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6982] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6982] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 6981] +++ exited with 0 +++ [pid 5073] fstat(3, [pid 5072] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "./154", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6982] <... openat resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6981, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] fstat(4, [pid 5069] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(3, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./159/binderfs", [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] umount2("./154/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] close(4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] unlink("./159/binderfs" [pid 5072] <... close resumed>) = 0 [pid 5069] lstat("./154/binderfs", [pid 6982] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... openat resumed>) = 3 [pid 5073] <... unlink resumed>) = 0 [pid 5072] rmdir("./157/file0" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] fstat(3, [pid 5073] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5069] unlink("./154/binderfs" [pid 6982] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, [pid 5069] <... unlink resumed>) = 0 [pid 6982] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] getdents64(3, [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [ 219.700843][ T6985] REISERFS (device loop1): checking transaction log (loop1) [ 219.717416][ T6985] REISERFS (device loop1): Using r5 hash to sort names [ 219.729385][ T6985] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6982] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] close(3 [pid 5074] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./157" [pid 5074] lstat("./162/binderfs", [pid 5072] <... rmdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] mkdir("./158", 0777 [pid 6985] <... mount resumed>) = 0 [pid 6982] exit_group(0 [pid 5074] unlink("./162/binderfs" [pid 5072] <... mkdir resumed>) = 0 [pid 6985] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6982] <... exit_group resumed>) = ? [pid 5074] <... unlink resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6985] <... openat resumed>) = 3 [pid 6982] +++ exited with 0 +++ [pid 5074] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 6985] chdir("./file0" [pid 5072] ioctl(3, LOOP_CLR_FD [pid 6985] <... chdir resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6982, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=20 /* 0.20 s */} --- [pid 5072] close(3 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 6985] ioctl(4, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 [pid 5071] <... restart_syscall resumed>) = 0 [pid 6985] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6985] close(4 [pid 5073] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6985] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6993 [pid 5071] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6985] mkdir(NULL, 000 [pid 5073] lstat("./159/file0", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6985] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 6985] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(3, [pid 5073] openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 6993 attached [pid 5073] <... openat resumed>) = 4 [ 219.768672][ T6985] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] getdents64(3, [pid 6993] chdir("./158" [pid 6985] <... openat resumed>) = 4 [pid 5073] fstat(4, [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6993] <... chdir resumed>) = 0 [pid 6985] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6993] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6985] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6993] <... prctl resumed>) = 0 [pid 6985] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] lstat("./158/binderfs", [pid 6993] setpgid(0, 0 [pid 6985] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] getdents64(4, [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6993] <... setpgid resumed>) = 0 [pid 6985] exit_group(0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] unlink("./158/binderfs" [pid 6993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6985] <... exit_group resumed>) = ? [pid 5073] close(4 [pid 5071] <... unlink resumed>) = 0 [pid 6993] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5071] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6993] write(3, "1000", 4 [pid 6985] +++ exited with 0 +++ [pid 5073] rmdir("./159/file0" [pid 6993] <... write resumed>) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 6993] close(3 [pid 5073] getdents64(3, [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6985, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} --- [pid 6993] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 6993] symlink("/dev/binderfs", "./binderfs" [pid 5073] close(3 [pid 5070] <... restart_syscall resumed>) = 0 [pid 6993] <... symlink resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 6993] memfd_create("syzkaller", 0 [pid 5073] rmdir("./159" [pid 6993] <... memfd_create resumed>) = 3 [pid 5073] <... rmdir resumed>) = 0 [pid 5070] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6993] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] mkdir("./160", 0777 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6993] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./157/binderfs") = 0 [pid 5073] <... openat resumed>) = 3 [pid 5070] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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=0x555556cad5d0) = 6994 ./strace-static-x86_64: Process 6994 attached [pid 5069] <... umount2 resumed>) = 0 [pid 6994] chdir("./160") = 0 [pid 5069] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6994] <... prctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 6994] setpgid(0, 0 [pid 5069] lstat("./154/file0", [pid 5070] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6994] <... setpgid resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./157/file0", [pid 5069] umount2("./154/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6994] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6994] write(3, "1000", 4 [pid 5074] lstat("./162/file0", [pid 5070] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6994] <... write resumed>) = 4 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./154/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6994] close(3 [pid 5074] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./157/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6994] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 6994] symlink("/dev/binderfs", "./binderfs" [pid 5074] openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5069] fstat(4, [pid 6994] <... symlink resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 6994] memfd_create("syzkaller", 0 [pid 5074] fstat(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6994] <... memfd_create resumed>) = 3 [pid 5074] <... 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 6994] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] getdents64(4, [pid 5070] getdents64(4, [pid 5069] getdents64(4, [pid 6994] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 6993] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, [pid 5070] getdents64(4, [pid 5074] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5069] close(4 [pid 5074] close(4 [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5070] rmdir("./157/file0" [pid 5069] rmdir("./154/file0" [pid 5074] rmdir("./162/file0" [pid 5070] <... rmdir resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, [pid 5070] getdents64(3, [pid 5069] getdents64(3, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... close resumed>) = 0 [pid 5070] close(3 [pid 5074] rmdir("./162" [pid 5069] close(3 [pid 5070] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5074] mkdir("./163", 0777 [pid 5070] rmdir("./157" [pid 5069] rmdir("./154" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5070] mkdir("./158", 0777 [pid 5069] mkdir("./155", 0777 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6995 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5070] close(3 [pid 5069] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5069] 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 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, ./strace-static-x86_64: Process 6995 attached [pid 6995] chdir("./163" [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 6995] <... chdir resumed>) = 0 [pid 6995] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] getdents64(4, [pid 6995] <... prctl resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6997 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 6996 ./strace-static-x86_64: Process 6997 attached [pid 6995] setpgid(0, 0 [pid 6997] chdir("./158" [pid 6995] <... setpgid resumed>) = 0 [pid 5071] close(4./strace-static-x86_64: Process 6996 attached [pid 6997] <... chdir resumed>) = 0 [pid 6995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] <... close resumed>) = 0 [pid 6997] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6996] chdir("./155" [pid 6995] <... openat resumed>) = 3 [pid 5071] rmdir("./158/file0" [pid 6997] <... prctl resumed>) = 0 [pid 6996] <... chdir resumed>) = 0 [pid 6995] write(3, "1000", 4 [pid 5071] <... rmdir resumed>) = 0 [pid 6997] setpgid(0, 0 [pid 6996] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6995] <... write resumed>) = 4 [pid 5071] getdents64(3, [pid 6997] <... setpgid resumed>) = 0 [pid 6996] <... prctl resumed>) = 0 [pid 6995] close(3 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 6997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6996] setpgid(0, 0 [pid 6995] <... close resumed>) = 0 [pid 5071] close(3 [pid 6997] <... openat resumed>) = 3 [pid 6996] <... setpgid resumed>) = 0 [pid 6995] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... close resumed>) = 0 [pid 6997] write(3, "1000", 4 [pid 6996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6995] <... symlink resumed>) = 0 [pid 5071] rmdir("./158" [pid 6997] <... write resumed>) = 4 [pid 6996] <... openat resumed>) = 3 [pid 6995] memfd_create("syzkaller", 0 [pid 5071] <... rmdir resumed>) = 0 [pid 6997] close(3 [pid 6996] write(3, "1000", 4 [pid 6995] <... memfd_create resumed>) = 3 [pid 5071] mkdir("./159", 0777 [pid 6997] <... close resumed>) = 0 [pid 6996] <... write resumed>) = 4 [pid 6995] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... mkdir resumed>) = 0 [pid 6997] symlink("/dev/binderfs", "./binderfs" [pid 6996] close(3 [pid 6995] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 6997] <... symlink resumed>) = 0 [pid 6996] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 6997] memfd_create("syzkaller", 0 [pid 6996] symlink("/dev/binderfs", "./binderfs" [pid 5071] ioctl(3, LOOP_CLR_FD [pid 6997] <... memfd_create resumed>) = 3 [pid 6996] <... symlink resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 6997] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6996] memfd_create("syzkaller", 0 [pid 5071] close(3 [pid 6997] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 6996] <... memfd_create resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 6996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6994] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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=0x555556cad5d0) = 6998 [pid 6996] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 6995] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 6998 attached [pid 6998] chdir("./159") = 0 [pid 6998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6998] setpgid(0, 0) = 0 [pid 6998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6993] <... write resumed>) = 4194304 [pid 6998] write(3, "1000", 4) = 4 [pid 6993] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6998] close(3) = 0 [pid 6998] symlink("/dev/binderfs", "./binderfs") = 0 [pid 6997] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6998] memfd_create("syzkaller", 0 [pid 6993] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 6998] <... memfd_create resumed>) = 3 [pid 6993] <... openat resumed>) = 4 [pid 6998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 6993] ioctl(4, LOOP_SET_FD, 3 [pid 6998] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 6996] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6994] <... write resumed>) = 4194304 [pid 6993] <... ioctl resumed>) = 0 [pid 6993] close(3) = 0 [pid 6993] mkdir("./file0", 0777) = 0 [pid 6993] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6994] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6994] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 6994] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6994] close(3) = 0 [pid 6994] mkdir("./file0", 0777) = 0 [pid 6994] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6995] <... write resumed>) = 4194304 [pid 6995] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6995] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 220.222248][ T6993] loop3: detected capacity change from 0 to 8192 [ 220.242352][ T6994] loop4: detected capacity change from 0 to 8192 [ 220.250394][ T6993] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 6995] ioctl(4, LOOP_SET_FD, 3 [pid 6998] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 6995] <... ioctl resumed>) = 0 [pid 6997] <... write resumed>) = 4194304 [ 220.295870][ T6994] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 220.297290][ T6995] loop5: detected capacity change from 0 to 8192 [ 220.321565][ T6993] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 6996] <... write resumed>) = 4194304 [pid 6995] close(3 [pid 6997] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 6997] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 6995] <... close resumed>) = 0 [pid 6996] munmap(0x7f8a1b2e3000, 4194304 [pid 6997] ioctl(4, LOOP_SET_FD, 3 [pid 6996] <... munmap resumed>) = 0 [pid 6995] mkdir("./file0", 0777 [pid 6997] <... ioctl resumed>) = 0 [pid 6997] close(3) = 0 [pid 6997] mkdir("./file0", 0777) = 0 [pid 6996] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 6995] <... mkdir resumed>) = 0 [pid 6996] <... openat resumed>) = 4 [pid 6995] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6996] ioctl(4, LOOP_SET_FD, 3 [ 220.346118][ T6994] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 220.355606][ T6993] REISERFS (device loop3): using ordered data mode [ 220.362642][ T6993] reiserfs: using flush barriers [ 220.365863][ T6997] loop1: detected capacity change from 0 to 8192 [ 220.370607][ T6993] 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 6997] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6996] <... ioctl resumed>) = 0 [pid 6998] <... write resumed>) = 4194304 [pid 6996] close(3 [pid 6998] munmap(0x7f8a1b2e3000, 4194304 [pid 6996] <... close resumed>) = 0 [pid 6996] mkdir("./file0", 0777 [pid 6998] <... munmap resumed>) = 0 [pid 6998] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [ 220.392484][ T6996] loop0: detected capacity change from 0 to 8192 [ 220.394118][ T6994] REISERFS (device loop4): using ordered data mode [ 220.409057][ T6993] REISERFS (device loop3): checking transaction log (loop3) [ 220.416536][ T6994] reiserfs: using flush barriers [ 220.422136][ T6995] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 220.431576][ T6998] loop2: detected capacity change from 0 to 8192 [pid 6998] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 6996] <... mkdir resumed>) = 0 [ 220.436400][ T6997] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 220.442706][ T6995] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 220.455555][ T6994] 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 [ 220.464195][ T6995] REISERFS (device loop5): using ordered data mode [ 220.482820][ T6993] REISERFS (device loop3): Using r5 hash to sort names [pid 6996] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6998] close(3) = 0 [ 220.488054][ T6995] reiserfs: using flush barriers [ 220.494504][ T6993] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.500463][ T6997] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 220.512343][ T6995] 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 [ 220.521291][ T6997] REISERFS (device loop1): using ordered data mode [pid 6998] mkdir("./file0", 0777) = 0 [pid 6993] <... mount resumed>) = 0 [pid 6993] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6993] chdir("./file0") = 0 [pid 6993] ioctl(4, LOOP_CLR_FD) = 0 [ 220.543204][ T6997] reiserfs: using flush barriers [ 220.544864][ T6996] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 220.553001][ T6994] REISERFS (device loop4): checking transaction log (loop4) [ 220.561361][ T6997] 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 [ 220.569471][ T6993] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 6993] close(4 [pid 6998] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 6993] <... close resumed>) = 0 [pid 6993] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6993] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6993] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6993] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6993] exit_group(0) = ? [pid 6993] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6993, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [ 220.597696][ T6994] REISERFS (device loop4): Using r5 hash to sort names [ 220.605156][ T6994] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.614429][ T6997] REISERFS (device loop1): checking transaction log (loop1) [ 220.627237][ T6996] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5072] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, [pid 6997] <... mount resumed>) = 0 [pid 6997] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6997] chdir("./file0") = 0 [pid 6997] ioctl(4, LOOP_CLR_FD) = 0 [pid 6997] close(4) = 0 [pid 6997] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6997] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6997] <... openat resumed>) = 4 [pid 6997] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 6997] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6997] exit_group(0) = ? [ 220.628330][ T6998] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 220.641275][ T6997] REISERFS (device loop1): Using r5 hash to sort names [ 220.657540][ T6997] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.659853][ T6996] REISERFS (device loop0): using ordered data mode [ 220.671145][ T6997] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 220.678268][ T6994] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6997] +++ exited with 0 +++ [pid 5072] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6997, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- [ 220.702414][ T6995] REISERFS (device loop5): checking transaction log (loop5) [ 220.710497][ T6998] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 220.711730][ T6995] REISERFS (device loop5): Using r5 hash to sort names [ 220.720206][ T6998] REISERFS (device loop2): using ordered data mode [ 220.733361][ T6998] reiserfs: using flush barriers [pid 5072] lstat("./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./158/binderfs" [pid 5070] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6995] <... mount resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6994] <... mount resumed>) = 0 [pid 6994] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6994] chdir("./file0") = 0 [pid 6994] ioctl(4, LOOP_CLR_FD) = 0 [pid 6994] close(4) = 0 [pid 6994] mkdir(NULL, 000) = -1 EFAULT (Bad address) [ 220.739869][ T6998] 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 [ 220.743084][ T6995] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.756470][ T6996] reiserfs: using flush barriers [ 220.770500][ T6995] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 220.774346][ T6998] REISERFS (device loop2): checking transaction log (loop2) [pid 6994] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6994] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6994] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6994] exit_group(0) = ? [pid 6995] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 6994] +++ exited with 0 +++ [pid 5072] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 6995] <... openat resumed>) = 3 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6994, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5070] <... openat resumed>) = 3 [pid 6995] chdir("./file0") = 0 [pid 5070] fstat(3, [pid 6995] ioctl(4, LOOP_CLR_FD [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6995] <... ioctl resumed>) = 0 [pid 6995] close(4 [pid 5070] getdents64(3, [pid 6995] <... close resumed>) = 0 [pid 6995] mkdir(NULL, 000 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6995] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6995] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6995] <... openat resumed>) = 4 [pid 5073] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] lstat("./158/binderfs", [pid 6995] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... openat resumed>) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] fstat(3, [pid 6995] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5070] unlink("./158/binderfs" [pid 6995] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 6995] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] getdents64(3, [pid 5070] <... unlink resumed>) = 0 [ 220.785978][ T6996] 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 [ 220.816656][ T6996] REISERFS (device loop0): checking transaction log (loop0) [ 220.825574][ T6998] REISERFS (device loop2): Using r5 hash to sort names [ 220.836375][ T6996] REISERFS (device loop0): Using r5 hash to sort names [pid 6995] exit_group(0) = ? [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6995] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6995, si_uid=0, si_status=0, si_utime=0, si_stime=23 /* 0.23 s */} --- [pid 5073] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./160/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./160/binderfs" [pid 6998] <... mount resumed>) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5074] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 6998] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 6998] <... openat resumed>) = 3 [pid 5074] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6998] chdir("./file0" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 6998] <... chdir resumed>) = 0 [pid 5074] lstat("./163/binderfs", [pid 6998] ioctl(4, LOOP_CLR_FD) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 6998] close(4 [pid 5074] unlink("./163/binderfs") = 0 [ 220.843986][ T6998] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.860272][ T6996] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 220.874925][ T6998] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 220.879000][ T6996] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6998] <... close resumed>) = 0 [pid 6998] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6998] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6998] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6998] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6998] exit_group(0) = ? [pid 6998] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6998, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5071] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./159", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./159/binderfs") = 0 [pid 5071] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 6996] <... mount resumed>) = 0 [pid 6996] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 6996] chdir("./file0") = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 6996] ioctl(4, LOOP_CLR_FD) = 0 [pid 6996] close(4) = 0 [pid 6996] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 6996] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 6996] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 6996] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 6996] exit_group(0) = ? [pid 6996] +++ exited with 0 +++ [pid 5072] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6996, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./155", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./155", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 4 [pid 5069] fstat(3, [pid 5072] fstat(4, [pid 5069] <... 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 5069] getdents64(3, [pid 5072] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] umount2("./155/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5072] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] lstat("./155/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("./155/binderfs" [pid 5072] rmdir("./158/file0") = 0 [pid 5069] <... unlink resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 5072] close(3 [pid 5070] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] rmdir("./158" [pid 5070] lstat("./158/file0", [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] mkdir("./159", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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 5070] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7005 [pid 5073] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5073] lstat("./160/file0", [pid 5070] fstat(4, [pid 5073] <... 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 5073] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] getdents64(4, ./strace-static-x86_64: Process 7005 attached [pid 5073] <... openat resumed>) = 4 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7005] chdir("./159" [pid 5073] fstat(4, [pid 5070] getdents64(4, [pid 7005] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] getdents64(4, [pid 5070] close(4 [pid 7005] <... prctl resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7005] setpgid(0, 0 [pid 5073] getdents64(4, [pid 7005] <... setpgid resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5073] close(4 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./158/file0" [pid 5073] <... close resumed>) = 0 [pid 7005] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = 0 [pid 5073] rmdir("./160/file0" [pid 5070] <... rmdir resumed>) = 0 [pid 7005] write(3, "1000", 4 [pid 5073] <... rmdir resumed>) = 0 [pid 7005] <... write resumed>) = 4 [pid 5073] getdents64(3, [pid 5070] getdents64(3, [pid 7005] close(3 [pid 5074] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7005] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(3 [pid 5071] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 7005] symlink("/dev/binderfs", "./binderfs" [pid 5074] lstat("./163/file0", [pid 5073] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 7005] <... symlink resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] rmdir("./160" [pid 5071] lstat("./159/file0", [pid 5070] rmdir("./158" [pid 5074] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 7005] memfd_create("syzkaller", 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] mkdir("./161", 0777 [pid 5071] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./159", 0777 [pid 7005] <... memfd_create resumed>) = 3 [pid 5074] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... mkdir resumed>) = 0 [pid 7005] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... openat resumed>) = 4 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7005] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] fstat(4, [pid 5073] <... openat resumed>) = 3 [pid 5071] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] fstat(4, [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5074] getdents64(4, [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... ioctl resumed>) = -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=0x555556cad5d0) = 7006 ./strace-static-x86_64: Process 7006 attached [pid 7006] chdir("./161" [pid 5074] getdents64(4, [pid 5071] getdents64(4, [pid 5070] close(3 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] rmdir("./163/file0" [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] close(4 [pid 5074] getdents64(3, [pid 5071] <... close resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7007 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] rmdir("./159/file0" [pid 5074] close(3 [pid 7006] <... chdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 7006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] rmdir("./163" [pid 7006] <... prctl resumed>) = 0 [pid 5071] getdents64(3, [pid 7006] setpgid(0, 0 [pid 5074] <... rmdir resumed>) = 0 [pid 7006] <... setpgid resumed>) = 0 [pid 5074] mkdir("./164", 0777 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... mkdir resumed>) = 0 [pid 5071] close(3./strace-static-x86_64: Process 7007 attached [pid 7006] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 7007] chdir("./159" [pid 7006] write(3, "1000", 4 [pid 5074] <... openat resumed>) = 3 [pid 5071] rmdir("./159" [pid 7007] <... chdir resumed>) = 0 [pid 7006] <... write resumed>) = 4 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7006] close(3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... rmdir resumed>) = 0 [pid 7007] <... prctl resumed>) = 0 [pid 7006] <... close resumed>) = 0 [pid 5074] close(3 [pid 5071] mkdir("./160", 0777 [pid 7007] setpgid(0, 0 [pid 7006] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... close resumed>) = 0 [pid 7007] <... setpgid resumed>) = 0 [pid 7006] <... symlink resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... mkdir resumed>) = 0 [pid 7007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7006] memfd_create("syzkaller", 0 [pid 7007] <... openat resumed>) = 3 [pid 7006] <... memfd_create resumed>) = 3 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7007] write(3, "1000", 4 [pid 7006] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7008 [pid 7007] <... write resumed>) = 4 [pid 7006] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5071] <... openat resumed>) = 3 ./strace-static-x86_64: Process 7008 attached [pid 7007] close(3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7008] chdir("./164" [pid 7007] <... close resumed>) = 0 [pid 7008] <... chdir resumed>) = 0 [pid 7007] symlink("/dev/binderfs", "./binderfs" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7008] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7007] <... symlink resumed>) = 0 [pid 5071] close(3 [pid 7008] <... prctl resumed>) = 0 [pid 7007] memfd_create("syzkaller", 0 [pid 7008] setpgid(0, 0 [pid 7007] <... memfd_create resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 7008] <... setpgid resumed>) = 0 [pid 7007] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7007] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7008] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = 0 ./strace-static-x86_64: Process 7009 attached [pid 7009] chdir("./160" [pid 7008] write(3, "1000", 4 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7009 [pid 7008] <... write resumed>) = 4 [pid 5069] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7008] close(3 [pid 7009] <... chdir resumed>) = 0 [pid 7008] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7008] symlink("/dev/binderfs", "./binderfs" [pid 5069] lstat("./155/file0", [pid 7009] <... prctl resumed>) = 0 [pid 7008] <... symlink resumed>) = 0 [pid 7009] setpgid(0, 0 [pid 7008] memfd_create("syzkaller", 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7009] <... setpgid resumed>) = 0 [pid 7008] <... memfd_create resumed>) = 3 [pid 5069] umount2("./155/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7008] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7009] <... openat resumed>) = 3 [pid 7008] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7009] write(3, "1000", 4) = 4 [pid 7009] close(3) = 0 [pid 7009] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7009] memfd_create("syzkaller", 0 [pid 7005] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7009] <... memfd_create resumed>) = 3 [pid 5069] openat(AT_FDCWD, "./155/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7009] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./155/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./155") = 0 [pid 5069] mkdir("./156", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", 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 7006] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7010 [pid 7008] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7010 attached [pid 7007] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7010] chdir("./156") = 0 [pid 7010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7010] setpgid(0, 0) = 0 [pid 7010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7009] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7010] <... openat resumed>) = 3 [pid 7010] write(3, "1000", 4) = 4 [pid 7010] close(3) = 0 [pid 7010] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7010] memfd_create("syzkaller", 0) = 3 [pid 7010] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7005] <... write resumed>) = 4194304 [pid 7005] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7010] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7009] <... write resumed>) = 4194304 [pid 7008] <... write resumed>) = 4194304 [pid 7006] <... write resumed>) = 4194304 [pid 7005] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7008] munmap(0x7f8a1b2e3000, 4194304 [pid 7007] <... write resumed>) = 4194304 [pid 7006] munmap(0x7f8a1b2e3000, 4194304 [pid 7005] <... openat resumed>) = 4 [pid 7009] munmap(0x7f8a1b2e3000, 4194304 [pid 7008] <... munmap resumed>) = 0 [pid 7007] munmap(0x7f8a1b2e3000, 4194304 [pid 7006] <... munmap resumed>) = 0 [pid 7005] ioctl(4, LOOP_SET_FD, 3 [pid 7009] <... munmap resumed>) = 0 [pid 7008] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7007] <... munmap resumed>) = 0 [pid 7006] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7009] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7008] <... openat resumed>) = 4 [pid 7007] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7006] <... openat resumed>) = 4 [pid 7005] <... ioctl resumed>) = 0 [pid 7009] <... openat resumed>) = 4 [pid 7008] ioctl(4, LOOP_SET_FD, 3 [pid 7007] <... openat resumed>) = 4 [pid 7006] ioctl(4, LOOP_SET_FD, 3 [pid 7005] close(3 [pid 7009] ioctl(4, LOOP_SET_FD, 3 [pid 7007] ioctl(4, LOOP_SET_FD, 3 [pid 7005] <... close resumed>) = 0 [pid 7008] <... ioctl resumed>) = 0 [pid 7007] <... ioctl resumed>) = 0 [pid 7005] mkdir("./file0", 0777 [pid 7007] close(3 [pid 7005] <... mkdir resumed>) = 0 [pid 7007] <... close resumed>) = 0 [pid 7005] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7007] mkdir("./file0", 0777) = 0 [pid 7007] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7006] <... ioctl resumed>) = 0 [pid 7006] close(3) = 0 [pid 7006] mkdir("./file0", 0777) = 0 [pid 7006] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7008] close(3) = 0 [pid 7008] mkdir("./file0", 0777 [pid 7009] <... ioctl resumed>) = 0 [ 221.412644][ T7005] loop3: detected capacity change from 0 to 8192 [ 221.424982][ T7008] loop5: detected capacity change from 0 to 8192 [ 221.425389][ T7006] loop4: detected capacity change from 0 to 8192 [ 221.439331][ T7007] loop1: detected capacity change from 0 to 8192 [ 221.439331][ T7009] loop2: detected capacity change from 0 to 8192 [pid 7010] <... write resumed>) = 4194304 [pid 7009] close(3 [pid 7008] <... mkdir resumed>) = 0 [pid 7008] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7009] <... close resumed>) = 0 [pid 7009] mkdir("./file0", 0777) = 0 [pid 7009] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7010] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7010] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7010] ioctl(4, LOOP_SET_FD, 3) = 0 [ 221.456940][ T7007] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.470479][ T7005] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.473474][ T7010] loop0: detected capacity change from 0 to 8192 [ 221.484502][ T7006] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.490188][ T7007] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 7010] close(3) = 0 [ 221.507489][ T7005] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 221.519143][ T7006] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 221.531093][ T7005] REISERFS (device loop3): using ordered data mode [ 221.533429][ T7007] REISERFS (device loop1): using ordered data mode [ 221.537707][ T7005] reiserfs: using flush barriers [ 221.538815][ T7006] REISERFS (device loop4): using ordered data mode [pid 7010] mkdir("./file0", 0777) = 0 [ 221.552924][ T7008] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.557033][ T7005] 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 [ 221.569370][ T7009] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.591588][ T7007] reiserfs: using flush barriers [ 221.600612][ T7009] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 221.606053][ T7010] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 221.614294][ T7009] REISERFS (device loop2): using ordered data mode [ 221.633865][ T7009] reiserfs: using flush barriers [ 221.640054][ T7006] reiserfs: using flush barriers [ 221.643593][ T7009] 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 [ 221.646425][ T7005] REISERFS (device loop3): checking transaction log (loop3) [ 221.662084][ T7006] 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 [ 221.669574][ T7005] REISERFS (device loop3): Using r5 hash to sort names [ 221.686886][ T7008] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 221.691870][ T7005] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7010] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7005] <... mount resumed>) = 0 [pid 7005] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 221.703255][ T7007] 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 [ 221.713630][ T7005] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 221.714023][ T7010] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 221.732858][ T7008] REISERFS (device loop5): using ordered data mode [ 221.739203][ T7010] REISERFS (device loop0): using ordered data mode [pid 7005] chdir("./file0") = 0 [pid 7005] ioctl(4, LOOP_CLR_FD) = 0 [pid 7005] close(4) = 0 [ 221.761483][ T7010] reiserfs: using flush barriers [ 221.763713][ T7006] REISERFS (device loop4): checking transaction log (loop4) [ 221.767974][ T7010] 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 [ 221.776686][ T7009] REISERFS (device loop2): checking transaction log (loop2) [ 221.790741][ T7010] REISERFS (device loop0): checking transaction log (loop0) [pid 7005] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7005] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 221.808874][ T7006] REISERFS (device loop4): Using r5 hash to sort names [ 221.819254][ T7009] REISERFS (device loop2): Using r5 hash to sort names [ 221.826610][ T7010] REISERFS (device loop0): Using r5 hash to sort names [ 221.829956][ T7006] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 221.834768][ T7010] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7005] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7005] mount(NULL, "./bus", NULL, 0, NULL [pid 7006] <... mount resumed>) = 0 [pid 7006] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7009] <... mount resumed>) = 0 [pid 7006] chdir("./file0") = 0 [pid 7006] ioctl(4, LOOP_CLR_FD [pid 7009] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7005] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7006] <... ioctl resumed>) = 0 [ 221.857890][ T7009] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 221.863473][ T7007] REISERFS (device loop1): checking transaction log (loop1) [ 221.874493][ T7009] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 221.879813][ T7008] reiserfs: using flush barriers [ 221.890377][ T7006] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 221.896493][ T7010] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 7009] <... openat resumed>) = 3 [pid 7006] close(4) = 0 [pid 7009] chdir("./file0" [pid 7006] mkdir(NULL, 000 [pid 7009] <... chdir resumed>) = 0 [pid 7006] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7009] ioctl(4, LOOP_CLR_FD [pid 7006] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7009] <... ioctl resumed>) = 0 [pid 7006] <... openat resumed>) = 4 [pid 7009] close(4) = 0 [pid 7006] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7009] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7006] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7009] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7006] mount(NULL, "./bus", NULL, 0, NULL [pid 7009] <... openat resumed>) = 4 [pid 7006] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7009] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7006] exit_group(0 [pid 7009] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7006] <... exit_group resumed>) = ? [pid 7009] mount(NULL, "./bus", NULL, 0, NULL [pid 7006] +++ exited with 0 +++ [pid 7009] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7006, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- [pid 7009] exit_group(0 [pid 7005] exit_group(0 [pid 7009] <... exit_group resumed>) = ? [pid 7009] +++ exited with 0 +++ [pid 5073] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7009, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5073] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5073] <... openat resumed>) = 3 [pid 5071] <... restart_syscall resumed>) = 0 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, [pid 5071] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7005] <... exit_group resumed>) = ? [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7005] +++ exited with 0 +++ [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... openat resumed>) = 3 [pid 5073] lstat("./161/binderfs", [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7005, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5071] fstat(3, [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("./161/binderfs" [pid 5071] getdents64(3, [pid 5073] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./160/binderfs", [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] unlink("./160/binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5071] <... unlink resumed>) = 0 [pid 5072] fstat(3, [pid 5071] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./159/binderfs") = 0 [pid 5072] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7010] <... mount resumed>) = 0 [pid 7010] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7010] chdir("./file0") = 0 [ 221.913275][ T7008] 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 [ 221.937593][ T7007] REISERFS (device loop1): Using r5 hash to sort names [pid 7010] ioctl(4, LOOP_CLR_FD) = 0 [pid 7010] close(4) = 0 [pid 7010] mkdir(NULL, 000) = -1 EFAULT (Bad address) [ 221.951939][ T7007] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 221.976668][ T7008] REISERFS (device loop5): checking transaction log (loop5) [pid 7010] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7010] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7010] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7010] exit_group(0 [pid 5073] <... umount2 resumed>) = 0 [pid 7010] <... exit_group resumed>) = ? [pid 7010] +++ exited with 0 +++ [pid 5073] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7010, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=19 /* 0.19 s */} --- [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./156", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] lstat("./161/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./156", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(3, [pid 5073] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] <... openat resumed>) = 4 [pid 5069] umount2("./156/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] fstat(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./156/binderfs", [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./156/binderfs" [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4 [pid 5069] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./161/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./161") = 0 [pid 5073] mkdir("./162", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = 0 [ 222.007422][ T7007] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 222.039569][ T7008] REISERFS (device loop5): Using r5 hash to sort names [pid 5073] close(3 [pid 7007] <... mount resumed>) = 0 [pid 7007] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7007] chdir("./file0") = 0 [pid 7007] ioctl(4, LOOP_CLR_FD) = 0 [pid 7007] close(4) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 7007] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7007] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7007] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = 0 [pid 7007] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7007] exit_group(0) = ? [pid 7007] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7007, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5070] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./159/file0", [pid 5070] lstat("./159/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] unlink("./159/binderfs" [pid 5072] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [ 222.086723][ T7008] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] openat(AT_FDCWD, "./159/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7008] <... mount resumed>) = 0 [pid 5071] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7008] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... openat resumed>) = 4 ./strace-static-x86_64: Process 7018 attached [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7008] <... openat resumed>) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7018 [pid 7008] chdir("./file0" [pid 5072] fstat(4, [pid 5071] lstat("./160/file0", [pid 7008] <... chdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7018] chdir("./162" [pid 7008] ioctl(4, LOOP_CLR_FD [pid 5072] getdents64(4, [pid 5071] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7008] <... ioctl resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7008] close(4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7008] <... close resumed>) = 0 [pid 7018] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5072] getdents64(4, [pid 7008] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] fstat(4, [pid 7008] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] close(4 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7018] setpgid(0, 0 [pid 7008] <... openat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 7008] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] rmdir("./159/file0" [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7018] <... setpgid resumed>) = 0 [pid 7008] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... rmdir resumed>) = 0 [pid 5071] getdents64(4, [pid 7018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7008] mount(NULL, "./bus", NULL, 0, NULL [pid 5072] getdents64(3, [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7008] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(4 [pid 7008] exit_group(0 [pid 5072] close(3 [pid 7008] <... exit_group resumed>) = ? [pid 5071] <... close resumed>) = 0 [pid 7018] <... openat resumed>) = 3 [pid 7008] +++ exited with 0 +++ [pid 5072] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7018] write(3, "1000", 4) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7008, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5072] rmdir("./159" [pid 5071] rmdir("./160/file0" [pid 7018] close(3 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 7018] <... close resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 7018] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 7018] memfd_create("syzkaller", 0 [pid 5074] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 7018] <... memfd_create resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] mkdir("./160", 0777 [pid 7018] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, [pid 7018] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 222.136398][ T7008] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5071] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./164/binderfs", [pid 5072] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./164/binderfs" [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] rmdir("./160" [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./156/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./156/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./156/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./156/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./156") = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] mkdir("./157", 0777) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] close(3 [pid 5071] mkdir("./161", 0777 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5072] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... mkdir resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7020 [pid 5071] <... openat resumed>) = 3 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7021 [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=0x555556cad5d0) = 7022 ./strace-static-x86_64: Process 7022 attached ./strace-static-x86_64: Process 7021 attached ./strace-static-x86_64: Process 7020 attached [pid 7018] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7022] chdir("./161" [pid 7020] chdir("./157") = 0 [pid 7021] chdir("./160") = 0 [pid 7022] <... chdir resumed>) = 0 [pid 7020] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7020] <... prctl resumed>) = 0 [pid 7022] <... prctl resumed>) = 0 [pid 7021] <... prctl resumed>) = 0 [pid 7020] setpgid(0, 0 [pid 7022] setpgid(0, 0 [pid 7021] setpgid(0, 0) = 0 [pid 7022] <... setpgid resumed>) = 0 [pid 7021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7020] <... setpgid resumed>) = 0 [pid 7021] <... openat resumed>) = 3 [pid 7020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7022] <... openat resumed>) = 3 [pid 7021] write(3, "1000", 4 [pid 7022] write(3, "1000", 4 [pid 7021] <... write resumed>) = 4 [pid 7022] <... write resumed>) = 4 [pid 7021] close(3 [pid 7022] close(3 [pid 7021] <... close resumed>) = 0 [pid 7022] <... close resumed>) = 0 [pid 7021] symlink("/dev/binderfs", "./binderfs" [pid 7022] symlink("/dev/binderfs", "./binderfs" [pid 7021] <... symlink resumed>) = 0 [pid 7020] <... openat resumed>) = 3 [pid 7022] <... symlink resumed>) = 0 [pid 7021] memfd_create("syzkaller", 0 [pid 7022] memfd_create("syzkaller", 0 [pid 7020] write(3, "1000", 4) = 4 [pid 7020] close(3 [pid 7022] <... memfd_create resumed>) = 3 [pid 7020] <... close resumed>) = 0 [pid 7022] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7021] <... memfd_create resumed>) = 3 [pid 7020] symlink("/dev/binderfs", "./binderfs" [pid 7022] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7021] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7020] <... symlink resumed>) = 0 [pid 7021] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7020] memfd_create("syzkaller", 0 [pid 5070] <... umount2 resumed>) = 0 [pid 7020] <... memfd_create resumed>) = 3 [pid 7020] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5070] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./159/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./159/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./159/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./159") = 0 [pid 5070] mkdir("./160", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", 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=0x555556cad5d0) = 7023 ./strace-static-x86_64: Process 7023 attached [pid 7023] chdir("./160") = 0 [pid 7023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7023] setpgid(0, 0) = 0 [pid 7023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7023] write(3, "1000", 4) = 4 [pid 7023] close(3) = 0 [pid 7023] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7023] memfd_create("syzkaller", 0) = 3 [pid 7023] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7021] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7020] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7023] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7022] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./164/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./164/file0") = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./164") = 0 [pid 7018] <... write resumed>) = 4194304 [pid 5074] mkdir("./165", 0777 [pid 7018] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 7018] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7018] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 7018] close(3) = 0 [pid 7018] mkdir("./file0", 0777) = 0 [pid 7018] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7025 ./strace-static-x86_64: Process 7025 attached [pid 7025] chdir("./165") = 0 [pid 7025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7020] <... write resumed>) = 4194304 [pid 7025] setpgid(0, 0) = 0 [ 222.458400][ T7018] loop4: detected capacity change from 0 to 8192 [ 222.483665][ T7018] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7020] munmap(0x7f8a1b2e3000, 4194304 [pid 7025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7025] write(3, "1000", 4 [pid 7020] <... munmap resumed>) = 0 [pid 7025] <... write resumed>) = 4 [pid 7020] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7025] close(3 [pid 7023] <... write resumed>) = 4194304 [pid 7021] <... write resumed>) = 4194304 [pid 7020] <... openat resumed>) = 4 [pid 7023] munmap(0x7f8a1b2e3000, 4194304 [pid 7021] munmap(0x7f8a1b2e3000, 4194304 [pid 7020] ioctl(4, LOOP_SET_FD, 3 [pid 7025] <... close resumed>) = 0 [pid 7023] <... munmap resumed>) = 0 [pid 7021] <... munmap resumed>) = 0 [pid 7025] symlink("/dev/binderfs", "./binderfs" [pid 7021] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7025] <... symlink resumed>) = 0 [pid 7021] <... openat resumed>) = 4 [ 222.507355][ T7018] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 222.517214][ T7018] REISERFS (device loop4): using ordered data mode [ 222.523943][ T7018] reiserfs: using flush barriers [ 222.532799][ T7018] 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 [ 222.544640][ T7020] loop0: detected capacity change from 0 to 8192 [pid 7025] memfd_create("syzkaller", 0 [pid 7023] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7021] ioctl(4, LOOP_SET_FD, 3 [pid 7020] <... ioctl resumed>) = 0 [pid 7025] <... memfd_create resumed>) = 3 [pid 7023] <... openat resumed>) = 4 [pid 7022] <... write resumed>) = 4194304 [pid 7020] close(3 [pid 7023] ioctl(4, LOOP_SET_FD, 3 [pid 7022] munmap(0x7f8a1b2e3000, 4194304 [pid 7020] <... close resumed>) = 0 [pid 7025] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7022] <... munmap resumed>) = 0 [pid 7020] mkdir("./file0", 0777 [pid 7023] <... ioctl resumed>) = 0 [pid 7022] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7021] <... ioctl resumed>) = 0 [pid 7020] <... mkdir resumed>) = 0 [pid 7023] close(3 [pid 7022] <... openat resumed>) = 4 [pid 7021] close(3 [pid 7020] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7023] <... close resumed>) = 0 [pid 7022] ioctl(4, LOOP_SET_FD, 3 [pid 7021] <... close resumed>) = 0 [ 222.560976][ T7018] REISERFS (device loop4): checking transaction log (loop4) [ 222.563638][ T7021] loop3: detected capacity change from 0 to 8192 [ 222.575955][ T7018] REISERFS (device loop4): Using r5 hash to sort names [ 222.577423][ T7023] loop1: detected capacity change from 0 to 8192 [ 222.597929][ T7018] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7023] mkdir("./file0", 0777 [pid 7025] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7023] <... mkdir resumed>) = 0 [pid 7022] <... ioctl resumed>) = 0 [pid 7021] mkdir("./file0", 0777 [pid 7023] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7021] <... mkdir resumed>) = 0 [pid 7021] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7018] <... mount resumed>) = 0 [ 222.614452][ T7022] loop2: detected capacity change from 0 to 8192 [ 222.615979][ T7018] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 222.631426][ T7020] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 222.646332][ T7023] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7018] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7025] <... write resumed>) = 4194304 [pid 7022] close(3 [pid 7018] <... openat resumed>) = 3 [pid 7025] munmap(0x7f8a1b2e3000, 4194304 [pid 7022] <... close resumed>) = 0 [pid 7018] chdir("./file0" [pid 7025] <... munmap resumed>) = 0 [pid 7022] mkdir("./file0", 0777 [pid 7018] <... chdir resumed>) = 0 [ 222.660663][ T7020] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 222.661555][ T7023] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 222.670650][ T7020] REISERFS (device loop0): using ordered data mode [ 222.682029][ T7023] REISERFS (device loop1): using ordered data mode [ 222.687060][ T7020] reiserfs: using flush barriers [ 222.692914][ T7021] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7025] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7022] <... mkdir resumed>) = 0 [pid 7018] ioctl(4, LOOP_CLR_FD [pid 7025] <... openat resumed>) = 4 [pid 7022] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7018] <... ioctl resumed>) = 0 [pid 7025] ioctl(4, LOOP_SET_FD, 3 [pid 7018] close(4) = 0 [pid 7025] <... ioctl resumed>) = 0 [pid 7018] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7018] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7018] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7018] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7018] exit_group(0) = ? [pid 7018] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7018, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [ 222.711200][ T7020] 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 [ 222.730395][ T7023] reiserfs: using flush barriers [ 222.737195][ T7025] loop5: detected capacity change from 0 to 8192 [ 222.744903][ T7022] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5073] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./162", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7025] close(3 [pid 5073] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7025] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7025] mkdir("./file0", 0777 [pid 5073] lstat("./162/binderfs", [pid 7025] <... mkdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7025] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] unlink("./162/binderfs") = 0 [ 222.755436][ T7021] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 222.764589][ T7022] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 222.776715][ T7022] REISERFS (device loop2): using ordered data mode [ 222.783400][ T7022] reiserfs: using flush barriers [ 222.783600][ T7023] 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 [ 222.806657][ T7022] 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 [ 222.808814][ T7023] REISERFS (device loop1): checking transaction log (loop1) [ 222.830355][ T7021] REISERFS (device loop3): using ordered data mode [ 222.832071][ T7020] REISERFS (device loop0): checking transaction log (loop0) [ 222.844322][ T7021] reiserfs: using flush barriers [ 222.846725][ T7022] REISERFS (device loop2): checking transaction log (loop2) [ 222.851772][ T7021] 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 [ 222.859138][ T7025] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 222.873548][ T7021] REISERFS (device loop3): checking transaction log (loop3) [ 222.886806][ T7023] REISERFS (device loop1): Using r5 hash to sort names [ 222.894013][ T7025] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 222.902730][ T7020] REISERFS (device loop0): Using r5 hash to sort names [ 222.909769][ T7025] REISERFS (device loop5): using ordered data mode [ 222.918115][ T7022] REISERFS (device loop2): Using r5 hash to sort names [ 222.923085][ T7025] reiserfs: using flush barriers [ 222.929866][ T7021] REISERFS (device loop3): Using r5 hash to sort names [ 222.936422][ T7023] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 222.942657][ T7025] 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 [ 222.955577][ T7023] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 222.983941][ T7021] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 222.985209][ T7020] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7023] <... mount resumed>) = 0 [pid 7023] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7023] chdir("./file0") = 0 [pid 7023] ioctl(4, LOOP_CLR_FD) = 0 [pid 7023] close(4) = 0 [pid 7023] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7023] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7023] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7021] <... mount resumed>) = 0 [pid 7023] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7023] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7023] exit_group(0) = ? [pid 7023] +++ exited with 0 +++ [pid 7021] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7023, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 7021] <... openat resumed>) = 3 [pid 7021] chdir("./file0") = 0 [pid 7021] ioctl(4, LOOP_CLR_FD [pid 5070] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7021] <... ioctl resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7021] close(4) = 0 [pid 5070] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7021] mkdir(NULL, 000 [pid 5070] <... openat resumed>) = 3 [pid 7020] <... mount resumed>) = 0 [pid 7021] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5070] fstat(3, [pid 7021] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7020] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7021] <... openat resumed>) = 4 [pid 5070] getdents64(3, [pid 7021] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7020] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [ 222.997217][ T7021] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 223.021153][ T7020] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 223.032025][ T7022] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7021] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7020] chdir("./file0" [pid 5070] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7021] mount(NULL, "./bus", NULL, 0, NULL [pid 7022] <... mount resumed>) = 0 [pid 7021] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7020] <... chdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7021] exit_group(0 [pid 7020] ioctl(4, LOOP_CLR_FD [pid 7022] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7021] <... exit_group resumed>) = ? [pid 5070] lstat("./160/binderfs", [pid 7020] <... ioctl resumed>) = 0 [pid 7021] +++ exited with 0 +++ [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7020] close(4 [pid 5070] unlink("./160/binderfs" [pid 7020] <... close resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7021, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=21 /* 0.21 s */} --- [pid 5070] <... unlink resumed>) = 0 [pid 7020] mkdir(NULL, 000 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5070] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7022] <... openat resumed>) = 3 [pid 7020] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5072] <... restart_syscall resumed>) = 0 [pid 7022] chdir("./file0" [pid 7020] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... umount2 resumed>) = 0 [pid 7020] <... openat resumed>) = 4 [pid 7020] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7020] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7022] <... chdir resumed>) = 0 [pid 7020] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 7022] ioctl(4, LOOP_CLR_FD [pid 7020] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 7020] exit_group(0 [pid 7022] <... ioctl resumed>) = 0 [pid 7020] <... exit_group resumed>) = ? [pid 5073] lstat("./162/file0", [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7020] +++ exited with 0 +++ [pid 5072] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7020, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./157", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7022] close(4 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./157", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7022] <... close resumed>) = 0 [pid 5073] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] lstat("./160/binderfs", [pid 5069] <... openat resumed>) = 3 [pid 7022] mkdir(NULL, 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] fstat(3, [pid 7022] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] unlink("./160/binderfs" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./157/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./157/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./157/binderfs" [pid 7022] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7022] <... openat resumed>) = 4 [pid 5073] fstat(4, [pid 5072] <... unlink resumed>) = 0 [pid 7022] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(4, [pid 7022] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [ 223.066423][ T7022] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 223.101480][ T7025] REISERFS (device loop5): checking transaction log (loop5) [pid 7022] exit_group(0 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7022] <... exit_group resumed>) = ? [pid 5073] close(4) = 0 [pid 7022] +++ exited with 0 +++ [pid 5073] rmdir("./162/file0" [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./157/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./157/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./157/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./157/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./157") = 0 [pid 5069] mkdir("./158", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = 0 [pid 5069] close(3) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7032 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7022, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 7032 attached [pid 7032] chdir("./158" [pid 5073] close(3 [pid 7032] <... chdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] rmdir("./162" [pid 7032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7032] <... prctl resumed>) = 0 [pid 7025] <... mount resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 7032] setpgid(0, 0 [pid 7025] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] mkdir("./163", 0777 [pid 5071] fstat(3, [pid 7032] <... setpgid resumed>) = 0 [pid 7025] <... openat resumed>) = 3 [pid 5073] <... mkdir resumed>) = 0 [pid 7032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7025] chdir("./file0" [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7032] <... openat resumed>) = 3 [pid 7025] <... chdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5071] getdents64(3, [pid 7032] write(3, "1000", 4 [pid 7025] ioctl(4, LOOP_CLR_FD [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7025] <... ioctl resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 7032] <... write resumed>) = 4 [pid 7025] close(4 [ 223.135467][ T7025] REISERFS (device loop5): Using r5 hash to sort names [ 223.146688][ T7025] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 223.170478][ T7025] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7032] close(3 [pid 7025] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./161/binderfs", [pid 7032] <... close resumed>) = 0 [pid 5073] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7025] mkdir(NULL, 000 [pid 5073] <... close resumed>) = 0 [pid 7032] symlink("/dev/binderfs", "./binderfs" [pid 7025] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] unlink("./161/binderfs" [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7032] <... symlink resumed>) = 0 [pid 7025] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5071] <... unlink resumed>) = 0 [pid 5071] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7032] memfd_create("syzkaller", 0 [pid 7025] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7032] <... memfd_create resumed>) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7035 [pid 7032] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7025] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7025] mount(NULL, "./bus", NULL, 0, NULL [pid 7032] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7025] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 7035 attached [pid 7035] chdir("./163") = 0 [pid 7035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7035] setpgid(0, 0) = 0 [pid 7035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7025] exit_group(0) = ? [pid 7035] <... openat resumed>) = 3 [pid 7025] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7025, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 7035] write(3, "1000", 4) = 4 [pid 5074] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7035] close(3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7035] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, [pid 7035] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7035] <... symlink resumed>) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7035] memfd_create("syzkaller", 0 [pid 5074] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7035] <... memfd_create resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7035] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] lstat("./165/binderfs", [pid 7035] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./165/binderfs") = 0 [pid 5074] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./160/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./160/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... umount2 resumed>) = 0 [pid 5070] getdents64(4, [pid 5074] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4 [pid 5074] lstat("./165/file0", [pid 5070] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] rmdir("./160/file0" [pid 5074] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, [pid 5074] openat(AT_FDCWD, "./165/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5074] fstat(4, [pid 5070] close(3 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(4, [pid 5072] lstat("./160/file0", [pid 5070] rmdir("./160" [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] mkdir("./161", 0777 [pid 7032] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] close(4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... mkdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./160/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... openat resumed>) = 4 [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] rmdir("./165/file0" [pid 5072] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] <... openat resumed>) = 3 [pid 5074] <... rmdir resumed>) = 0 [pid 5072] getdents64(4, [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./160/file0" [pid 5074] getdents64(3, [pid 5072] <... rmdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] getdents64(3, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5072] close(3) = 0 [pid 7035] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] close(3 [pid 5072] rmdir("./160" [pid 5070] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] rmdir("./165" [pid 5072] mkdir("./161", 0777 [pid 5074] <... rmdir resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5074] mkdir("./166", 0777 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7036 [pid 5074] <... mkdir resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5074] <... openat resumed>) = 3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5072] close(3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] close(3) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7037 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7038 ./strace-static-x86_64: Process 7037 attached [pid 7037] chdir("./161") = 0 [pid 7037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 7038 attached ./strace-static-x86_64: Process 7036 attached [pid 7037] setpgid(0, 0 [pid 5071] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7037] <... setpgid resumed>) = 0 [pid 7037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7037] write(3, "1000", 4) = 4 [pid 7037] close(3) = 0 [pid 7037] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7038] chdir("./166" [pid 7037] memfd_create("syzkaller", 0 [pid 7038] <... chdir resumed>) = 0 [pid 7037] <... memfd_create resumed>) = 3 [pid 7036] chdir("./161" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7037] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7036] <... chdir resumed>) = 0 [pid 5071] lstat("./161/file0", [pid 7038] <... prctl resumed>) = 0 [pid 7037] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7036] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7038] setpgid(0, 0 [pid 7036] <... prctl resumed>) = 0 [pid 5071] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7038] <... setpgid resumed>) = 0 [pid 7036] setpgid(0, 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7036] <... setpgid resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 7036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] fstat(4, [pid 7038] <... openat resumed>) = 3 [pid 7036] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7038] write(3, "1000", 4) = 4 [pid 7036] write(3, "1000", 4 [pid 7032] <... write resumed>) = 4194304 [pid 5071] getdents64(4, [pid 7038] close(3 [pid 7036] <... write resumed>) = 4 [pid 7032] munmap(0x7f8a1b2e3000, 4194304 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7038] <... close resumed>) = 0 [pid 7036] close(3 [pid 7038] symlink("/dev/binderfs", "./binderfs" [pid 5071] getdents64(4, [pid 7036] <... close resumed>) = 0 [pid 7038] <... symlink resumed>) = 0 [pid 7036] symlink("/dev/binderfs", "./binderfs" [pid 7032] <... munmap resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7036] <... symlink resumed>) = 0 [pid 5071] close(4 [pid 7038] memfd_create("syzkaller", 0 [pid 5071] <... close resumed>) = 0 [pid 7036] memfd_create("syzkaller", 0 [pid 5071] rmdir("./161/file0" [pid 7038] <... memfd_create resumed>) = 3 [pid 7036] <... memfd_create resumed>) = 3 [pid 7032] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... rmdir resumed>) = 0 [pid 7038] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7036] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7032] <... openat resumed>) = 4 [pid 7038] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7036] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5071] getdents64(3, [pid 7032] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 7032] <... ioctl resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5071] rmdir("./161") = 0 [pid 5071] mkdir("./162", 0777) = 0 [pid 5071] 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) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7039 [pid 7032] close(3) = 0 [pid 7032] mkdir("./file0", 0777) = 0 [pid 7032] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 7039 attached [pid 7039] chdir("./162" [pid 7037] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7039] <... chdir resumed>) = 0 [pid 7039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7039] setpgid(0, 0) = 0 [ 223.498144][ T7032] loop0: detected capacity change from 0 to 8192 [pid 7039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7039] write(3, "1000", 4) = 4 [pid 7039] close(3) = 0 [pid 7039] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7039] memfd_create("syzkaller", 0) = 3 [pid 7039] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 223.548729][ T7032] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7036] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7035] <... write resumed>) = 4194304 [pid 7038] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7035] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7039] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7035] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7035] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7035] close(3) = 0 [pid 7035] mkdir("./file0", 0777) = 0 [ 223.590838][ T7032] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 223.626977][ T7035] loop4: detected capacity change from 0 to 8192 [ 223.633705][ T7032] REISERFS (device loop0): using ordered data mode [pid 7035] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7037] <... write resumed>) = 4194304 [pid 7037] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7037] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 223.656298][ T7032] reiserfs: using flush barriers [ 223.664370][ T7037] loop3: detected capacity change from 0 to 8192 [ 223.671750][ T7035] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 223.672254][ T7032] 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 7037] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7037] close(3) = 0 [pid 7037] mkdir("./file0", 0777) = 0 [pid 7036] <... write resumed>) = 4194304 [ 223.701299][ T7032] REISERFS (device loop0): checking transaction log (loop0) [ 223.709685][ T7032] REISERFS (device loop0): Using r5 hash to sort names [ 223.718328][ T7032] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 223.727885][ T7035] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 223.733013][ T7032] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 7037] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7038] <... write resumed>) = 4194304 [pid 7036] munmap(0x7f8a1b2e3000, 4194304 [pid 7032] <... mount resumed>) = 0 [pid 7036] <... munmap resumed>) = 0 [pid 7032] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7038] munmap(0x7f8a1b2e3000, 4194304 [pid 7036] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7032] <... openat resumed>) = 3 [ 223.752538][ T7035] REISERFS (device loop4): using ordered data mode [ 223.760811][ T7035] reiserfs: using flush barriers [ 223.766141][ T7037] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 223.780281][ T7035] 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 [ 223.796843][ T7037] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 7038] <... munmap resumed>) = 0 [pid 7036] <... openat resumed>) = 4 [pid 7032] chdir("./file0" [pid 7036] ioctl(4, LOOP_SET_FD, 3 [pid 7032] <... chdir resumed>) = 0 [pid 7038] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7032] ioctl(4, LOOP_CLR_FD [pid 7038] <... openat resumed>) = 4 [pid 7032] <... ioctl resumed>) = 0 [pid 7038] ioctl(4, LOOP_SET_FD, 3 [pid 7032] close(4 [pid 7038] <... ioctl resumed>) = 0 [pid 7032] <... close resumed>) = 0 [pid 7032] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7032] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7032] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7032] mount(NULL, "./bus", NULL, 0, NULL [pid 7038] close(3 [pid 7032] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7032] exit_group(0) = ? [pid 7032] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7032, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7038] <... close resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5069] umount2("./158", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7038] mkdir("./file0", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7038] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./158", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7039] <... write resumed>) = 4194304 [pid 7038] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./158/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./158/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 223.799472][ T7036] loop1: detected capacity change from 0 to 8192 [ 223.806194][ T7037] REISERFS (device loop3): using ordered data mode [ 223.816327][ T7038] loop5: detected capacity change from 0 to 8192 [ 223.819634][ T7037] reiserfs: using flush barriers [ 223.836726][ T7035] REISERFS (device loop4): checking transaction log (loop4) [ 223.845555][ T7035] REISERFS (device loop4): Using r5 hash to sort names [pid 5069] unlink("./158/binderfs") = 0 [pid 5069] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7039] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7036] <... ioctl resumed>) = 0 [pid 7036] close(3) = 0 [pid 7036] mkdir("./file0", 0777) = 0 [pid 7036] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7035] <... mount resumed>) = 0 [pid 7035] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7035] chdir("./file0") = 0 [pid 7035] ioctl(4, LOOP_CLR_FD) = 0 [pid 7035] close(4) = 0 [pid 7035] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7035] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7035] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7035] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7035] exit_group(0) = ? [pid 7035] +++ exited with 0 +++ [ 223.852936][ T7035] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 223.869502][ T7035] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 223.872363][ T7038] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7035, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5073] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7039] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7039] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7039] <... ioctl resumed>) = 0 [pid 5073] fstat(3, [pid 7039] close(3) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7039] mkdir("./file0", 0777 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7039] <... mkdir resumed>) = 0 [pid 5073] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./163/binderfs") = 0 [pid 5073] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 223.884669][ T7037] 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 [ 223.910815][ T7039] loop2: detected capacity change from 0 to 8192 [ 223.917681][ T7036] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 223.953614][ T7036] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 223.961867][ T7037] REISERFS (device loop3): checking transaction log (loop3) [ 223.978663][ T7038] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 223.988744][ T7039] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7039] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./158/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./158/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 224.003460][ T7037] REISERFS (device loop3): Using r5 hash to sort names [ 224.006457][ T7036] REISERFS (device loop1): using ordered data mode [ 224.014870][ T7037] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 224.022024][ T7039] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 224.031122][ T7038] REISERFS (device loop5): using ordered data mode [ 224.039697][ T7039] REISERFS (device loop2): using ordered data mode [pid 5069] openat(AT_FDCWD, "./158/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 5073] lstat("./163/file0", [pid 5069] fstat(4, [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7037] <... mount resumed>) = 0 [pid 7037] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7037] chdir("./file0") = 0 [pid 7037] ioctl(4, LOOP_CLR_FD) = 0 [pid 7037] close(4) = 0 [pid 7037] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7037] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7037] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7037] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7037] exit_group(0) = ? [pid 7037] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7037, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5072] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./161", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./161/binderfs") = 0 [pid 5072] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5069] getdents64(4, [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./163/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [ 224.047930][ T7036] reiserfs: using flush barriers [ 224.052466][ T7039] reiserfs: using flush barriers [ 224.058305][ T7038] reiserfs: using flush barriers [ 224.063539][ T7037] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 224.068386][ T7039] 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] close(3) = 0 [pid 5073] rmdir("./163") = 0 [pid 5073] mkdir("./164", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", 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 5069] getdents64(4, [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7046 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./158/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./158") = 0 [pid 5069] mkdir("./159", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", 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=0x555556cad5d0) = 7047 [ 224.096406][ T7036] 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 [ 224.135527][ T7039] REISERFS (device loop2): checking transaction log (loop2) ./strace-static-x86_64: Process 7047 attached ./strace-static-x86_64: Process 7046 attached [pid 7047] chdir("./159" [pid 7046] chdir("./164" [pid 7047] <... chdir resumed>) = 0 [pid 7046] <... chdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 7047] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7047] <... prctl resumed>) = 0 [pid 7046] <... prctl resumed>) = 0 [pid 7047] setpgid(0, 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7047] <... setpgid resumed>) = 0 [pid 7046] setpgid(0, 0 [pid 5072] lstat("./161/file0", [pid 7047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7046] <... setpgid resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7047] <... openat resumed>) = 3 [pid 7046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7047] write(3, "1000", 4 [pid 7046] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7047] <... write resumed>) = 4 [pid 7046] write(3, "1000", 4 [pid 5072] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7047] close(3 [pid 7046] <... write resumed>) = 4 [pid 5072] <... openat resumed>) = 4 [pid 7047] <... close resumed>) = 0 [pid 7046] close(3 [pid 5072] fstat(4, [pid 7047] symlink("/dev/binderfs", "./binderfs" [pid 7046] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7047] <... symlink resumed>) = 0 [pid 7046] symlink("/dev/binderfs", "./binderfs" [pid 5072] getdents64(4, [pid 7047] memfd_create("syzkaller", 0 [pid 7046] <... symlink resumed>) = 0 [pid 7047] <... memfd_create resumed>) = 3 [pid 7046] memfd_create("syzkaller", 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7047] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7046] <... memfd_create resumed>) = 3 [pid 5072] getdents64(4, [pid 7047] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7046] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7046] <... mmap resumed>) = 0x7f8a1b2e3000 [ 224.144522][ T7038] 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 [ 224.145911][ T7039] REISERFS (device loop2): Using r5 hash to sort names [ 224.184626][ T7039] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] close(4) = 0 [pid 5072] rmdir("./161/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./161") = 0 [pid 5072] mkdir("./162", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = 0 [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7048 ./strace-static-x86_64: Process 7048 attached [pid 7048] chdir("./162") = 0 [pid 7048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7048] setpgid(0, 0) = 0 [pid 7048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7048] write(3, "1000", 4) = 4 [ 224.199782][ T7036] REISERFS (device loop1): checking transaction log (loop1) [ 224.224559][ T7036] REISERFS (device loop1): Using r5 hash to sort names [ 224.232293][ T7038] REISERFS (device loop5): checking transaction log (loop5) [ 224.233149][ T7039] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 7048] close(3) = 0 [pid 7048] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7048] memfd_create("syzkaller", 0) = 3 [pid 7048] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7047] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7046] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7039] <... mount resumed>) = 0 [pid 7039] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7039] chdir("./file0") = 0 [pid 7039] ioctl(4, LOOP_CLR_FD) = 0 [pid 7039] close(4) = 0 [pid 7039] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7039] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 224.269677][ T7038] REISERFS (device loop5): Using r5 hash to sort names [ 224.288180][ T7036] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 224.291168][ T7038] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7039] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7039] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7039] exit_group(0) = ? [pid 7039] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7039, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 5071] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./162", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./162/binderfs") = 0 [pid 7048] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7036] <... mount resumed>) = 0 [pid 7036] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 224.351509][ T7036] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7036] chdir("./file0") = 0 [pid 7036] ioctl(4, LOOP_CLR_FD) = 0 [pid 7036] close(4) = 0 [pid 7036] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7036] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7036] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7046] <... write resumed>) = 4194304 [pid 7036] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7046] munmap(0x7f8a1b2e3000, 4194304 [pid 7036] exit_group(0) = ? [pid 7036] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7036, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5070] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, [pid 7046] <... munmap resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7046] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7038] <... mount resumed>) = 0 [pid 5070] getdents64(3, [ 224.402799][ T7038] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7046] <... openat resumed>) = 4 [pid 7038] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7046] ioctl(4, LOOP_SET_FD, 3 [pid 7038] <... openat resumed>) = 3 [pid 5070] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./161/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./161/binderfs") = 0 [pid 5070] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7038] chdir("./file0") = 0 [pid 7046] <... ioctl resumed>) = 0 [pid 7038] ioctl(4, LOOP_CLR_FD [pid 7046] close(3 [pid 7038] <... ioctl resumed>) = 0 [pid 7046] <... close resumed>) = 0 [pid 7038] close(4 [pid 5071] <... umount2 resumed>) = 0 [pid 7047] <... write resumed>) = 4194304 [pid 7046] mkdir("./file0", 0777 [pid 7038] <... close resumed>) = 0 [pid 7046] <... mkdir resumed>) = 0 [pid 7047] munmap(0x7f8a1b2e3000, 4194304 [pid 7038] mkdir(NULL, 000 [pid 5071] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7046] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7038] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7038] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] lstat("./162/file0", [pid 7038] <... openat resumed>) = 4 [pid 7038] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7047] <... munmap resumed>) = 0 [pid 7038] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7047] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7038] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7047] <... openat resumed>) = 4 [pid 7038] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7047] ioctl(4, LOOP_SET_FD, 3 [pid 7038] exit_group(0 [ 224.466097][ T7046] loop4: detected capacity change from 0 to 8192 [pid 5071] openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7038] <... exit_group resumed>) = ? [pid 5071] <... openat resumed>) = 4 [pid 7038] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7038, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5071] fstat(4, [pid 5074] <... restart_syscall resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5074] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(4, [pid 5074] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] fstat(3, [pid 5071] close(4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5071] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] rmdir("./162/file0" [pid 5074] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./166/binderfs", [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] getdents64(3, [pid 5074] unlink("./166/binderfs") = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(3) = 0 [pid 5071] rmdir("./162") = 0 [pid 5071] mkdir("./163", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5070] <... umount2 resumed>) = 0 [pid 7047] <... ioctl resumed>) = 0 [ 224.509918][ T7047] loop0: detected capacity change from 0 to 8192 [ 224.517595][ T7046] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7047] close(3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7047] <... close resumed>) = 0 [pid 5071] close(3 [pid 7047] mkdir("./file0", 0777 [pid 5071] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7050 [pid 7047] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 7050 attached [pid 7048] <... write resumed>) = 4194304 [pid 7047] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7050] chdir("./163" [pid 7048] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7048] <... munmap resumed>) = 0 [pid 7050] <... chdir resumed>) = 0 [pid 7048] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5070] lstat("./161/file0", [pid 7050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7048] <... openat resumed>) = 4 [pid 7050] <... prctl resumed>) = 0 [pid 7050] setpgid(0, 0 [pid 7048] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7050] <... setpgid resumed>) = 0 [pid 7050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... umount2 resumed>) = 0 [ 224.577572][ T7046] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 224.597429][ T7046] REISERFS (device loop4): using ordered data mode [ 224.607579][ T7047] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 224.622267][ T7048] loop3: detected capacity change from 0 to 8192 [pid 5074] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7050] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7050] write(3, "1000", 4) = 4 [pid 7050] close(3) = 0 [pid 7050] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7050] memfd_create("syzkaller", 0) = 3 [pid 7050] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5074] lstat("./166/file0", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... openat resumed>) = 4 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] fstat(4, [pid 5074] openat(AT_FDCWD, "./166/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5070] getdents64(4, [pid 5074] fstat(4, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5074] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [ 224.622684][ T7046] reiserfs: using flush barriers [ 224.636684][ T7047] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 224.646735][ T7047] REISERFS (device loop0): using ordered data mode [ 224.648700][ T7046] 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 [ 224.653905][ T7047] reiserfs: using flush barriers [pid 7050] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7048] <... ioctl resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] close(4 [pid 7048] close(3 [pid 5074] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 7048] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] rmdir("./161/file0" [pid 7048] mkdir("./file0", 0777 [pid 5074] close(4 [pid 7048] <... mkdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5074] rmdir("./166/file0" [pid 7048] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] getdents64(3, [pid 5074] <... rmdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(3, [pid 5070] close(3 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5074] close(3) = 0 [pid 5070] rmdir("./161" [pid 5074] rmdir("./166") = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5074] mkdir("./167", 0777 [pid 5070] mkdir("./162", 0777 [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] <... mkdir resumed>) = 0 [ 224.679720][ T7047] 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 [ 224.693427][ T7046] REISERFS (device loop4): checking transaction log (loop4) [ 224.715481][ T7047] REISERFS (device loop0): checking transaction log (loop0) [pid 5074] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7050] <... write resumed>) = 4194304 [pid 5074] close(3 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7050] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... close resumed>) = 0 [pid 5070] close(3 [pid 7050] <... munmap resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... close resumed>) = 0 [pid 7050] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7050] <... openat resumed>) = 4 [ 224.728064][ T7048] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 224.743346][ T7047] REISERFS (device loop0): Using r5 hash to sort names [ 224.747305][ T7048] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 224.751561][ T7046] REISERFS (device loop4): Using r5 hash to sort names [ 224.759591][ T7048] REISERFS (device loop3): using ordered data mode [ 224.773165][ T7048] reiserfs: using flush barriers [pid 7050] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7053 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7054 ./strace-static-x86_64: Process 7053 attached [pid 7050] <... ioctl resumed>) = 0 [pid 7050] close(3) = 0 [pid 7053] chdir("./167" [pid 7050] mkdir("./file0", 0777 [pid 7053] <... chdir resumed>) = 0 [pid 7050] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 7054 attached [pid 7053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7050] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7054] chdir("./162" [pid 7053] <... prctl resumed>) = 0 [pid 7053] setpgid(0, 0) = 0 [pid 7053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7054] <... chdir resumed>) = 0 [ 224.785741][ T7050] loop2: detected capacity change from 0 to 8192 [ 224.786369][ T7048] 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 [ 224.812439][ T7048] REISERFS (device loop3): checking transaction log (loop3) [ 224.821540][ T7050] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7053] <... openat resumed>) = 3 [pid 7053] write(3, "1000", 4) = 4 [pid 7053] close(3) = 0 [pid 7053] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7054] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7053] memfd_create("syzkaller", 0) = 3 [pid 7054] <... prctl resumed>) = 0 [pid 7053] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 224.821831][ T7048] REISERFS (device loop3): Using r5 hash to sort names [ 224.842413][ T7048] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 224.844956][ T7047] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 224.855396][ T7046] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7054] setpgid(0, 0) = 0 [pid 7054] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7054] write(3, "1000", 4 [pid 7046] <... mount resumed>) = 0 [pid 7054] <... write resumed>) = 4 [pid 7046] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7054] close(3 [pid 7046] <... openat resumed>) = 3 [pid 7054] <... close resumed>) = 0 [pid 7046] chdir("./file0" [pid 7054] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7054] memfd_create("syzkaller", 0) = 3 [pid 7054] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7046] <... chdir resumed>) = 0 [ 224.880737][ T7046] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 224.900944][ T7050] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 224.911180][ T7050] REISERFS (device loop2): using ordered data mode [ 224.918043][ T7050] reiserfs: using flush barriers [pid 7046] ioctl(4, LOOP_CLR_FD) = 0 [pid 7046] close(4) = 0 [pid 7046] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7053] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7046] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7046] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [ 224.924380][ T7050] 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 [ 224.932119][ T7048] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 224.941110][ T7050] REISERFS (device loop2): checking transaction log (loop2) [ 224.966373][ T7050] REISERFS (device loop2): Using r5 hash to sort names [ 224.973627][ T7050] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7046] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7046] exit_group(0 [pid 7054] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7050] <... mount resumed>) = 0 [pid 7048] <... mount resumed>) = 0 [pid 7046] <... exit_group resumed>) = ? [pid 7050] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7048] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7050] <... openat resumed>) = 3 [pid 7048] <... openat resumed>) = 3 [pid 7046] +++ exited with 0 +++ [pid 7050] chdir("./file0" [pid 7048] chdir("./file0" [pid 7050] <... chdir resumed>) = 0 [pid 7048] <... chdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7046, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 7050] ioctl(4, LOOP_CLR_FD [pid 7048] ioctl(4, LOOP_CLR_FD [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 7050] <... ioctl resumed>) = 0 [pid 7048] <... ioctl resumed>) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 7053] <... write resumed>) = 4194304 [pid 7050] close(4 [pid 7048] close(4 [pid 7047] <... mount resumed>) = 0 [pid 7053] munmap(0x7f8a1b2e3000, 4194304 [pid 7050] <... close resumed>) = 0 [pid 7053] <... munmap resumed>) = 0 [pid 7050] mkdir(NULL, 000 [pid 7048] <... close resumed>) = 0 [pid 7047] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7053] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7050] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7048] mkdir(NULL, 000 [pid 7047] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7053] <... openat resumed>) = 4 [pid 7050] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7048] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7047] chdir("./file0" [pid 5073] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7053] ioctl(4, LOOP_SET_FD, 3 [pid 7050] <... openat resumed>) = 4 [pid 7048] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7047] <... chdir resumed>) = 0 [ 225.001805][ T7047] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 225.003313][ T7050] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] <... openat resumed>) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./164/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7053] <... ioctl resumed>) = 0 [pid 5073] unlink("./164/binderfs" [pid 7050] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7048] <... openat resumed>) = 4 [pid 7047] ioctl(4, LOOP_CLR_FD [pid 5073] <... unlink resumed>) = 0 [pid 7050] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7048] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7047] <... ioctl resumed>) = 0 [pid 5073] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7053] close(3 [pid 7050] mount(NULL, "./bus", NULL, 0, NULL [pid 7048] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7047] close(4 [pid 7053] <... close resumed>) = 0 [pid 7050] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7048] mount(NULL, "./bus", NULL, 0, NULL [pid 7047] <... close resumed>) = 0 [pid 7053] mkdir("./file0", 0777 [pid 7050] exit_group(0 [pid 7048] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7047] mkdir(NULL, 000 [pid 7050] <... exit_group resumed>) = ? [pid 7048] exit_group(0 [pid 7047] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7053] <... mkdir resumed>) = 0 [pid 7053] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7050] +++ exited with 0 +++ [pid 7048] <... exit_group resumed>) = ? [pid 7047] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7050, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 7048] +++ exited with 0 +++ [pid 7047] <... openat resumed>) = 4 [pid 5071] <... restart_syscall resumed>) = 0 [pid 7047] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7048, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 7047] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7047] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7047] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7047] exit_group(0 [ 225.058629][ T7053] loop5: detected capacity change from 0 to 8192 [pid 5071] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7047] <... exit_group resumed>) = ? [pid 5071] <... openat resumed>) = 3 [pid 5072] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(3, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] getdents64(3, [pid 5072] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] fstat(3, [pid 5071] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 5071] lstat("./163/binderfs", [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] unlink("./163/binderfs" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... unlink resumed>) = 0 [pid 5072] lstat("./162/binderfs", [pid 5071] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7054] <... write resumed>) = 4194304 [pid 7047] +++ exited with 0 +++ [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7054] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] unlink("./162/binderfs" [pid 7054] <... munmap resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7047, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 7054] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7054] <... openat resumed>) = 4 [ 225.104949][ T7053] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 225.125577][ T7053] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 225.135426][ T7053] REISERFS (device loop5): using ordered data mode [pid 7054] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 7054] <... ioctl resumed>) = 0 [pid 5073] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7054] close(3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./159", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7054] <... close resumed>) = 0 [pid 5073] lstat("./164/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7054] mkdir("./file0", 0777 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./159", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7054] <... mkdir resumed>) = 0 [pid 5073] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 7054] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(3, [pid 5073] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] getdents64(3, [pid 5073] fstat(4, [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./159/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] lstat("./159/binderfs", [pid 5073] getdents64(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] unlink("./159/binderfs" [pid 5073] close(4 [pid 5069] <... unlink resumed>) = 0 [ 225.152643][ T7054] loop1: detected capacity change from 0 to 8192 [ 225.168197][ T7053] reiserfs: using flush barriers [pid 5073] <... close resumed>) = 0 [pid 5069] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./164/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [ 225.194469][ T7053] 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 [ 225.241628][ T7054] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] rmdir("./164") = 0 [pid 5073] mkdir("./165", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", 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=0x555556cad5d0) = 7059 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./162/file0", ./strace-static-x86_64: Process 7059 attached [pid 7059] chdir("./165") = 0 [pid 7059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7059] <... prctl resumed>) = 0 [pid 7059] setpgid(0, 0) = 0 [pid 7059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7059] write(3, "1000", 4) = 4 [pid 7059] close(3) = 0 [pid 7059] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7059] memfd_create("syzkaller", 0) = 3 [pid 7059] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 225.241735][ T7053] REISERFS (device loop5): checking transaction log (loop5) [ 225.268088][ T7053] REISERFS (device loop5): Using r5 hash to sort names [ 225.287009][ T7053] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5072] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./162/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./162/file0") = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./162") = 0 [pid 5072] mkdir("./163", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5071] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(3 [pid 5071] lstat("./163/file0", [pid 5072] <... close resumed>) = 0 [ 225.317792][ T7054] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 225.353878][ T7053] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7053] <... mount resumed>) = 0 [pid 5071] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7059] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7053] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7060 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./159/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./159/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./159/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, ./strace-static-x86_64: Process 7060 attached 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7060] chdir("./163" [pid 5069] getdents64(4, [pid 7060] <... chdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] close(4 [pid 7060] <... prctl resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 7060] setpgid(0, 0 [pid 5069] rmdir("./159/file0" [pid 7060] <... setpgid resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 7060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] getdents64(3, [pid 7060] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7060] write(3, "1000", 4 [pid 7053] <... openat resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] close(3 [pid 7060] <... write resumed>) = 4 [pid 7053] chdir("./file0" [pid 5071] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 7060] close(3 [pid 7053] <... chdir resumed>) = 0 [pid 5071] fstat(4, [pid 5069] rmdir("./159" [pid 7060] <... close resumed>) = 0 [pid 7053] ioctl(4, LOOP_CLR_FD [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 7060] symlink("/dev/binderfs", "./binderfs" [pid 7053] <... ioctl resumed>) = 0 [pid 5071] getdents64(4, [pid 5069] mkdir("./160", 0777 [pid 7060] <... symlink resumed>) = 0 [pid 7053] close(4 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... mkdir resumed>) = 0 [pid 7060] memfd_create("syzkaller", 0 [pid 7053] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7060] <... memfd_create resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 7060] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7060] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7053] mkdir(NULL, 000 [pid 5071] getdents64(4, [pid 5069] close(3 [pid 7053] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7053] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7053] <... openat resumed>) = 4 [pid 5071] close(4 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7061 [pid 7053] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] <... close resumed>) = 0 [pid 7053] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [ 225.388330][ T7054] REISERFS (device loop1): using ordered data mode [ 225.394918][ T7054] reiserfs: using flush barriers [ 225.404605][ T7054] 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] rmdir("./163/file0"./strace-static-x86_64: Process 7061 attached [pid 7053] mount(NULL, "./bus", NULL, 0, NULL [pid 7061] chdir("./160" [pid 7053] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... rmdir resumed>) = 0 [pid 7061] <... chdir resumed>) = 0 [pid 7053] exit_group(0 [pid 5071] getdents64(3, [pid 7061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7053] <... exit_group resumed>) = ? [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7061] <... prctl resumed>) = 0 [pid 7061] setpgid(0, 0 [pid 7053] +++ exited with 0 +++ [pid 5071] close(3 [pid 7061] <... setpgid resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7053, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5071] <... close resumed>) = 0 [pid 7061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] rmdir("./163" [pid 7061] <... openat resumed>) = 3 [pid 7061] write(3, "1000", 4 [pid 5071] <... rmdir resumed>) = 0 [pid 7061] <... write resumed>) = 4 [pid 7061] close(3) = 0 [pid 5074] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7061] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7061] <... symlink resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7061] memfd_create("syzkaller", 0 [pid 5074] <... openat resumed>) = 3 [pid 7061] <... memfd_create resumed>) = 3 [pid 5074] fstat(3, [pid 5071] mkdir("./164", 0777 [pid 7061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7061] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] getdents64(3, [pid 5071] <... mkdir resumed>) = 0 [pid 7059] <... write resumed>) = 4194304 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7059] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./167/binderfs") = 0 [pid 5074] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7059] <... munmap resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [ 225.480259][ T7054] REISERFS (device loop1): checking transaction log (loop1) [ 225.507887][ T7054] REISERFS (device loop1): Using r5 hash to sort names [ 225.515052][ T7054] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7059] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7060] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7059] <... openat resumed>) = 4 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7059] ioctl(4, LOOP_SET_FD, 3 [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7062 [pid 7059] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 7062 attached [pid 7059] close(3 [pid 7062] chdir("./164") = 0 [pid 7062] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7059] <... close resumed>) = 0 [pid 7062] setpgid(0, 0 [pid 7059] mkdir("./file0", 0777 [pid 7062] <... setpgid resumed>) = 0 [pid 7062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7059] <... mkdir resumed>) = 0 [pid 7062] <... openat resumed>) = 3 [pid 7061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7059] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7062] write(3, "1000", 4) = 4 [pid 7062] close(3) = 0 [pid 7054] <... mount resumed>) = 0 [ 225.530037][ T7054] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 225.542430][ T7059] loop4: detected capacity change from 0 to 8192 [pid 7062] symlink("/dev/binderfs", "./binderfs" [pid 7054] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7062] <... symlink resumed>) = 0 [pid 7054] <... openat resumed>) = 3 [pid 7062] memfd_create("syzkaller", 0 [pid 7054] chdir("./file0" [pid 7062] <... memfd_create resumed>) = 3 [pid 7054] <... chdir resumed>) = 0 [pid 7062] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7054] ioctl(4, LOOP_CLR_FD) = 0 [pid 7054] close(4) = 0 [pid 7054] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7054] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7054] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7054] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7054] exit_group(0 [pid 5074] <... umount2 resumed>) = 0 [pid 7054] <... exit_group resumed>) = ? [pid 7054] +++ exited with 0 +++ [pid 5074] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./167/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 225.609289][ T7059] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7062] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] getdents64(4, [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7054, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./167/file0") = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./167") = 0 [pid 5074] mkdir("./168", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7064 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 7064 attached [pid 5070] openat(AT_FDCWD, "./162", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7064] chdir("./168" [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, [pid 7064] <... chdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7064] setpgid(0, 0 [pid 5070] getdents64(3, [pid 7064] <... setpgid resumed>) = 0 [pid 7064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7064] <... openat resumed>) = 3 [pid 7064] write(3, "1000", 4 [pid 5070] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7064] <... write resumed>) = 4 [pid 7064] close(3) = 0 [pid 7064] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7064] memfd_create("syzkaller", 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7064] <... memfd_create resumed>) = 3 [pid 7064] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5070] lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7062] <... write resumed>) = 4194304 [pid 7060] <... write resumed>) = 4194304 [pid 5070] unlink("./162/binderfs" [pid 7062] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] <... unlink resumed>) = 0 [ 225.651407][ T7059] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 225.679550][ T7059] REISERFS (device loop4): using ordered data mode [ 225.686118][ T7059] reiserfs: using flush barriers [pid 5070] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7062] <... munmap resumed>) = 0 [pid 7062] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7062] ioctl(4, LOOP_SET_FD, 3 [pid 7060] munmap(0x7f8a1b2e3000, 4194304 [pid 7062] <... ioctl resumed>) = 0 [pid 7061] <... write resumed>) = 4194304 [pid 7060] <... munmap resumed>) = 0 [pid 7060] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7060] ioctl(4, LOOP_SET_FD, 3 [pid 7062] close(3 [ 225.742623][ T7059] 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 [ 225.743158][ T7062] loop2: detected capacity change from 0 to 8192 [ 225.771486][ T7059] REISERFS (device loop4): checking transaction log (loop4) [ 225.774472][ T7060] loop3: detected capacity change from 0 to 8192 [pid 7061] munmap(0x7f8a1b2e3000, 4194304 [pid 7064] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7062] <... close resumed>) = 0 [pid 7061] <... munmap resumed>) = 0 [pid 7060] <... ioctl resumed>) = 0 [pid 7062] mkdir("./file0", 0777 [pid 7061] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7060] close(3 [pid 7062] <... mkdir resumed>) = 0 [pid 7061] <... openat resumed>) = 4 [pid 7060] <... close resumed>) = 0 [ 225.790534][ T7059] REISERFS (device loop4): Using r5 hash to sort names [pid 7062] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7060] mkdir("./file0", 0777 [pid 7061] ioctl(4, LOOP_SET_FD, 3 [pid 7060] <... mkdir resumed>) = 0 [pid 7061] <... ioctl resumed>) = 0 [pid 7060] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... umount2 resumed>) = 0 [pid 7061] close(3) = 0 [pid 5070] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7061] mkdir("./file0", 0777 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7061] <... mkdir resumed>) = 0 [pid 7059] <... mount resumed>) = 0 [pid 7059] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7059] chdir("./file0") = 0 [pid 7059] ioctl(4, LOOP_CLR_FD) = 0 [pid 7059] close(4 [pid 5070] lstat("./162/file0", [pid 7061] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./162/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5070] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 225.820764][ T7061] loop0: detected capacity change from 0 to 8192 [ 225.821702][ T7059] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 225.841756][ T7059] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 225.853813][ T7062] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] getdents64(4, [pid 7064] <... write resumed>) = 4194304 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./162/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./162") = 0 [pid 7064] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] mkdir("./163", 0777 [pid 7059] <... close resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 7059] mkdir(NULL, 000 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7059] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5070] <... openat resumed>) = 3 [ 225.876825][ T7060] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 225.883888][ T7062] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 225.900151][ T7062] REISERFS (device loop2): using ordered data mode [ 225.907078][ T7062] reiserfs: using flush barriers [ 225.913957][ T7060] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 7059] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7064] <... munmap resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7064] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7059] <... openat resumed>) = 4 [pid 5070] close(3 [pid 7064] <... openat resumed>) = 4 [ 225.914411][ T7061] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 225.923768][ T7060] REISERFS (device loop3): using ordered data mode [ 225.937780][ T7062] 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 [ 225.943014][ T7060] reiserfs: using flush barriers [pid 7059] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5070] <... close resumed>) = 0 [pid 7064] ioctl(4, LOOP_SET_FD, 3 [pid 7059] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7059] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7068 ./strace-static-x86_64: Process 7068 attached [pid 7059] exit_group(0) = ? [pid 7059] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7059, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5073] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7068] chdir("./163" [pid 5073] fstat(3, [pid 7068] <... chdir resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./165/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./165/binderfs" [pid 7068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7064] <... ioctl resumed>) = 0 [pid 7064] close(3) = 0 [pid 7068] <... prctl resumed>) = 0 [ 225.944307][ T7060] 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 [ 225.969736][ T7064] loop5: detected capacity change from 0 to 8192 [ 225.995988][ T7061] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 226.006964][ T7060] REISERFS (device loop3): checking transaction log (loop3) [ 226.015462][ T7060] REISERFS (device loop3): Using r5 hash to sort names [pid 7064] mkdir("./file0", 0777 [pid 7068] setpgid(0, 0) = 0 [pid 7064] <... mkdir resumed>) = 0 [pid 7068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7064] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7068] <... openat resumed>) = 3 [pid 7068] write(3, "1000", 4) = 4 [ 226.023271][ T7062] REISERFS (device loop2): checking transaction log (loop2) [ 226.031381][ T7061] REISERFS (device loop0): using ordered data mode [ 226.038152][ T7060] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 226.051378][ T7061] reiserfs: using flush barriers [ 226.056061][ T7060] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 226.057673][ T7062] REISERFS (device loop2): Using r5 hash to sort names [pid 7068] close(3) = 0 [ 226.073841][ T7064] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 226.073990][ T7061] 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 [ 226.095494][ T7062] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 226.103508][ T7061] REISERFS (device loop0): checking transaction log (loop0) [pid 7068] symlink("/dev/binderfs", "./binderfs" [pid 7060] <... mount resumed>) = 0 [pid 7068] <... symlink resumed>) = 0 [pid 7060] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7068] memfd_create("syzkaller", 0 [ 226.123891][ T7064] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 226.127970][ T7061] REISERFS (device loop0): Using r5 hash to sort names [ 226.133232][ T7064] REISERFS (device loop5): using ordered data mode [ 226.147003][ T7064] reiserfs: using flush barriers [ 226.153606][ T7064] 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 7060] chdir("./file0" [pid 7068] <... memfd_create resumed>) = 3 [pid 7060] <... chdir resumed>) = 0 [pid 7068] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7060] ioctl(4, LOOP_CLR_FD [pid 7068] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7060] <... ioctl resumed>) = 0 [pid 7060] close(4) = 0 [pid 7060] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7060] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7060] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7061] <... mount resumed>) = 0 [pid 7060] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7060] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [ 226.156678][ T7062] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 226.170343][ T7064] REISERFS (device loop5): checking transaction log (loop5) [ 226.186676][ T7061] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 226.199849][ T7061] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 226.209396][ T7064] REISERFS (device loop5): Using r5 hash to sort names [pid 7064] <... mount resumed>) = 0 [pid 7062] <... mount resumed>) = 0 [pid 7061] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7060] exit_group(0 [pid 7064] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7062] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7061] <... openat resumed>) = 3 [pid 7060] <... exit_group resumed>) = ? [pid 7068] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7064] <... openat resumed>) = 3 [pid 7062] <... openat resumed>) = 3 [pid 7061] chdir("./file0" [pid 7060] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7060, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7064] chdir("./file0" [pid 7062] chdir("./file0" [pid 7061] <... chdir resumed>) = 0 [pid 5072] getdents64(3, [pid 7064] <... chdir resumed>) = 0 [pid 7062] <... chdir resumed>) = 0 [pid 7061] ioctl(4, LOOP_CLR_FD [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7064] ioctl(4, LOOP_CLR_FD [pid 7062] ioctl(4, LOOP_CLR_FD [pid 7061] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5072] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7064] <... ioctl resumed>) = 0 [pid 7062] <... ioctl resumed>) = 0 [pid 7061] close(4 [pid 5073] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7064] close(4 [pid 7062] close(4 [pid 7061] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./163/binderfs", [pid 5073] lstat("./165/file0", [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] unlink("./163/binderfs" [pid 5073] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... unlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 226.216902][ T7064] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 226.229819][ T7064] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7064] <... close resumed>) = 0 [pid 7062] <... close resumed>) = 0 [pid 7061] mkdir(NULL, 000 [pid 5073] openat(AT_FDCWD, "./165/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7068] <... write resumed>) = 4194304 [pid 7064] mkdir(NULL, 000 [pid 7062] mkdir(NULL, 000 [pid 7061] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... openat resumed>) = 4 [pid 7068] munmap(0x7f8a1b2e3000, 4194304 [pid 7064] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7062] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7061] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 7068] <... munmap resumed>) = 0 [pid 7064] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7062] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7064] <... openat resumed>) = 4 [pid 7061] <... openat resumed>) = 4 [pid 5073] getdents64(4, [pid 7068] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7064] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7062] <... openat resumed>) = 4 [pid 7061] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7068] <... openat resumed>) = 4 [pid 7064] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7062] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7061] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(4 [pid 7068] ioctl(4, LOOP_SET_FD, 3 [pid 7064] mount(NULL, "./bus", NULL, 0, NULL [pid 7062] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7061] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./165/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./165" [pid 7068] <... ioctl resumed>) = 0 [pid 7064] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7062] mount(NULL, "./bus", NULL, 0, NULL [pid 7061] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... rmdir resumed>) = 0 [pid 7064] exit_group(0 [pid 7062] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7061] exit_group(0 [pid 5073] mkdir("./166", 0777 [pid 7068] close(3 [pid 7064] <... exit_group resumed>) = ? [pid 7062] exit_group(0 [pid 7061] <... exit_group resumed>) = ? [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7064] +++ exited with 0 +++ [pid 7062] <... exit_group resumed>) = ? [pid 5073] <... openat resumed>) = 3 [pid 7068] <... close resumed>) = 0 [pid 7062] +++ exited with 0 +++ [pid 7061] +++ exited with 0 +++ [pid 5073] ioctl(3, LOOP_CLR_FD [pid 7068] mkdir("./file0", 0777 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7064, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7061, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5074] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] close(3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7062, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 5069] <... restart_syscall resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... restart_syscall resumed>) = 0 [pid 7068] <... mkdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 7068] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] fstat(3, [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7070 [pid 5069] umount2("./160", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./160", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 5074] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 3 [pid 5069] fstat(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 7070 attached [pid 5074] lstat("./168/binderfs", [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 7070] chdir("./166" [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] getdents64(3, [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7070] <... chdir resumed>) = 0 [pid 5074] unlink("./168/binderfs" [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./160/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7070] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... unlink resumed>) = 0 [pid 5071] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7070] <... prctl resumed>) = 0 [ 226.339199][ T7068] loop1: detected capacity change from 0 to 8192 [ 226.373102][ T7068] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./160/binderfs", [pid 7070] setpgid(0, 0 [pid 5071] lstat("./164/binderfs", [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7070] <... setpgid resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./160/binderfs" [pid 7070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] unlink("./164/binderfs" [pid 5069] <... unlink resumed>) = 0 [pid 7070] <... openat resumed>) = 3 [pid 5071] <... unlink resumed>) = 0 [pid 5069] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7070] write(3, "1000", 4 [pid 5071] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7070] <... write resumed>) = 4 [pid 5072] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7070] close(3) = 0 [pid 7070] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7070] memfd_create("syzkaller", 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./163/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./163/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./163/file0") = 0 [pid 5072] getdents64(3, [pid 7070] <... memfd_create resumed>) = 3 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./163" [pid 7070] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./164", 0777 [pid 7070] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7072 [ 226.401098][ T7068] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 226.411053][ T7068] REISERFS (device loop1): using ordered data mode [ 226.419669][ T7068] reiserfs: using flush barriers ./strace-static-x86_64: Process 7072 attached [pid 7072] chdir("./164") = 0 [pid 7072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7072] setpgid(0, 0) = 0 [pid 7072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7070] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7072] write(3, "1000", 4) = 4 [pid 7072] close(3) = 0 [ 226.450451][ T7068] 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 [ 226.467569][ T7068] REISERFS (device loop1): checking transaction log (loop1) [ 226.478379][ T7068] REISERFS (device loop1): Using r5 hash to sort names [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./168/file0", [pid 7072] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7072] <... symlink resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7072] memfd_create("syzkaller", 0 [pid 5074] <... openat resumed>) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, [pid 7072] <... memfd_create resumed>) = 3 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4 [pid 7072] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./168/file0" [pid 7072] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... rmdir resumed>) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./168") = 0 [pid 5074] mkdir("./169", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7073 ./strace-static-x86_64: Process 7073 attached [pid 7073] chdir("./169") = 0 [pid 7073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7073] setpgid(0, 0) = 0 [pid 7073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] <... umount2 resumed>) = 0 [pid 7073] write(3, "1000", 4) = 4 [pid 7073] close(3) = 0 [pid 7073] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7073] memfd_create("syzkaller", 0) = 3 [pid 7073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./164/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 226.577681][ T7068] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] lstat("./160/file0", [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] umount2("./160/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./160/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./160/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] fstat(4, [pid 5069] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 5071] getdents64(4, [pid 5069] rmdir("./160" [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... rmdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5069] mkdir("./161", 0777 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5071] close(4 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 7072] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./164/file0" [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5071] <... rmdir resumed>) = 0 [pid 5069] close(3 [pid 7068] <... mount resumed>) = 0 [pid 5071] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 7068] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7068] <... openat resumed>) = 3 [pid 5071] close(3 [pid 7070] <... write resumed>) = 4194304 [pid 7068] chdir("./file0" [pid 5071] <... close resumed>) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7074 [pid 7070] munmap(0x7f8a1b2e3000, 4194304 [pid 7068] <... chdir resumed>) = 0 ./strace-static-x86_64: Process 7074 attached [pid 7068] ioctl(4, LOOP_CLR_FD [pid 5071] rmdir("./164" [pid 7074] chdir("./161" [pid 7068] <... ioctl resumed>) = 0 [pid 7074] <... chdir resumed>) = 0 [pid 7068] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 7074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7070] <... munmap resumed>) = 0 [pid 7068] <... close resumed>) = 0 [ 226.646799][ T7068] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] mkdir("./165", 0777 [pid 7074] <... prctl resumed>) = 0 [pid 7070] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7068] mkdir(NULL, 000 [pid 7074] setpgid(0, 0 [pid 7070] <... openat resumed>) = 4 [pid 7068] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... mkdir resumed>) = 0 [pid 7074] <... setpgid resumed>) = 0 [pid 7070] ioctl(4, LOOP_SET_FD, 3 [pid 7068] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7074] write(3, "1000", 4 [pid 7073] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7074] <... write resumed>) = 4 [pid 7074] close(3) = 0 [pid 7074] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7074] memfd_create("syzkaller", 0 [pid 7068] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 3 [pid 7074] <... memfd_create resumed>) = 3 [pid 7070] <... ioctl resumed>) = 0 [pid 7068] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7074] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7070] close(3 [pid 7068] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7074] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7070] <... close resumed>) = 0 [pid 7068] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] close(3 [pid 7072] <... write resumed>) = 4194304 [pid 7070] mkdir("./file0", 0777 [pid 7068] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... close resumed>) = 0 [pid 7070] <... mkdir resumed>) = 0 [pid 7072] munmap(0x7f8a1b2e3000, 4194304 [pid 7070] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7068] exit_group(0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7068] <... exit_group resumed>) = ? [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7076 [pid 7068] +++ exited with 0 +++ [pid 7072] <... munmap resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7068, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 7072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [ 226.711201][ T7070] loop4: detected capacity change from 0 to 8192 [pid 7072] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7072] close(3 [pid 5070] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7072] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 7076 attached [pid 7072] mkdir("./file0", 0777 [pid 5070] openat(AT_FDCWD, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7076] chdir("./165" [pid 7072] <... mkdir resumed>) = 0 [pid 7076] <... chdir resumed>) = 0 [pid 7072] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] <... openat resumed>) = 3 [ 226.755311][ T7070] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 226.769063][ T7072] loop3: detected capacity change from 0 to 8192 [pid 7076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] fstat(3, [pid 7076] setpgid(0, 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7076] <... setpgid resumed>) = 0 [pid 5070] getdents64(3, [pid 7076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7076] <... openat resumed>) = 3 [pid 5070] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7076] write(3, "1000", 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7076] <... write resumed>) = 4 [pid 7076] close(3 [pid 7074] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7076] <... close resumed>) = 0 [pid 5070] unlink("./163/binderfs" [pid 7076] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... unlink resumed>) = 0 [pid 7076] <... symlink resumed>) = 0 [pid 5070] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7076] memfd_create("syzkaller", 0) = 3 [pid 7076] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7073] <... write resumed>) = 4194304 [ 226.797943][ T7070] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 226.814934][ T7072] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7073] munmap(0x7f8a1b2e3000, 4194304 [pid 7074] <... write resumed>) = 4194304 [pid 7073] <... munmap resumed>) = 0 [pid 7074] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7073] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7074] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7073] <... openat resumed>) = 4 [pid 7074] <... openat resumed>) = 4 [ 226.885059][ T7072] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 226.891717][ T7070] REISERFS (device loop4): using ordered data mode [ 226.896394][ T7072] REISERFS (device loop3): using ordered data mode [ 226.908097][ T7072] reiserfs: using flush barriers [ 226.915219][ T7072] 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 7073] ioctl(4, LOOP_SET_FD, 3 [pid 7074] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7074] close(3) = 0 [ 226.935410][ T7072] REISERFS (device loop3): checking transaction log (loop3) [ 226.936033][ T7073] loop5: detected capacity change from 0 to 8192 [ 226.951484][ T7074] loop0: detected capacity change from 0 to 8192 [ 226.951575][ T7072] REISERFS (device loop3): Using r5 hash to sort names [ 226.965495][ T7072] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 226.978847][ T7070] reiserfs: using flush barriers [pid 7074] mkdir("./file0", 0777 [pid 5070] <... umount2 resumed>) = 0 [pid 7074] <... mkdir resumed>) = 0 [pid 7073] <... ioctl resumed>) = 0 [pid 7072] <... mount resumed>) = 0 [pid 7074] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7073] close(3 [pid 7076] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./163/file0", [pid 7072] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7073] <... close resumed>) = 0 [pid 7072] <... openat resumed>) = 3 [pid 5070] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 7073] mkdir("./file0", 0777 [pid 7072] chdir("./file0" [pid 5070] fstat(4, [ 226.979127][ T7072] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 226.995372][ T7070] 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 [ 227.013987][ T7070] REISERFS (device loop4): checking transaction log (loop4) [pid 7073] <... mkdir resumed>) = 0 [pid 7072] <... chdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./163/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 7073] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7072] ioctl(4, LOOP_CLR_FD [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./163") = 0 [pid 5070] mkdir("./164", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7072] <... ioctl resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 7072] close(4 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7072] <... close resumed>) = 0 [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=0x555556cad5d0) = 7080 [pid 7072] mkdir(NULL, 000) = -1 EFAULT (Bad address) [ 227.024596][ T7074] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 227.024829][ T7070] REISERFS (device loop4): Using r5 hash to sort names [ 227.046471][ T7070] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 227.067605][ T7073] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7072] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7072] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7072] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7072] exit_group(0) = ? [pid 7072] +++ exited with 0 +++ [pid 7070] <... mount resumed>) = 0 ./strace-static-x86_64: Process 7080 attached [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7072, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 7080] chdir("./164" [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 7080] <... chdir resumed>) = 0 [pid 5072] <... restart_syscall resumed>) = 0 [pid 7080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7080] setpgid(0, 0) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] <... openat resumed>) = 3 [pid 7080] write(3, "1000", 4 [pid 5072] fstat(3, [pid 7080] <... write resumed>) = 4 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7080] close(3 [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7080] <... close resumed>) = 0 [pid 5072] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7080] symlink("/dev/binderfs", "./binderfs" [pid 7070] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7080] <... symlink resumed>) = 0 [pid 7070] <... openat resumed>) = 3 [pid 5072] lstat("./164/binderfs", [ 227.069303][ T7070] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 7070] chdir("./file0" [pid 7080] memfd_create("syzkaller", 0 [pid 7076] <... write resumed>) = 4194304 [pid 7070] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7070] ioctl(4, LOOP_CLR_FD) = 0 [pid 7070] close(4) = 0 [pid 7070] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7070] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7080] <... memfd_create resumed>) = 3 [pid 7076] munmap(0x7f8a1b2e3000, 4194304 [pid 7070] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] unlink("./164/binderfs" [pid 7070] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7070] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7070] exit_group(0) = ? [pid 7080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7070] +++ exited with 0 +++ [pid 7076] <... munmap resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7070, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5072] <... unlink resumed>) = 0 [pid 7080] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./166", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./166/binderfs") = 0 [ 227.113075][ T7074] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 227.121108][ T7073] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 227.132377][ T7073] REISERFS (device loop5): using ordered data mode [ 227.156460][ T7073] reiserfs: using flush barriers [pid 5073] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7076] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7076] <... openat resumed>) = 4 [pid 7076] ioctl(4, LOOP_SET_FD, 3 [pid 7080] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7076] <... ioctl resumed>) = 0 [pid 7076] close(3) = 0 [pid 7076] mkdir("./file0", 0777) = 0 [ 227.164508][ T7073] 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 [ 227.165727][ T7074] REISERFS (device loop0): using ordered data mode [ 227.190218][ T7076] loop2: detected capacity change from 0 to 8192 [ 227.213021][ T7076] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 227.238976][ T7073] REISERFS (device loop5): checking transaction log (loop5) [pid 7076] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./166/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./166/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [ 227.264987][ T7076] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 227.274888][ T7076] REISERFS (device loop2): using ordered data mode [ 227.282072][ T7076] reiserfs: using flush barriers [ 227.289905][ T7076] 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 [ 227.306824][ T7076] REISERFS (device loop2): checking transaction log (loop2) [pid 5073] close(4) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5073] rmdir("./166/file0" [pid 5072] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7080] <... write resumed>) = 4194304 [pid 7080] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7080] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [ 227.306853][ T7073] REISERFS (device loop5): Using r5 hash to sort names [ 227.314347][ T7074] reiserfs: using flush barriers [ 227.322311][ T7076] REISERFS (device loop2): Using r5 hash to sort names [ 227.334826][ T7074] 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 [ 227.344936][ T7076] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7080] ioctl(4, LOOP_SET_FD, 3 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(3, [pid 5072] lstat("./164/file0", [pid 7080] <... ioctl resumed>) = 0 [pid 7080] close(3) = 0 [pid 7080] mkdir("./file0", 0777) = 0 [pid 7080] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7076] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7076] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] close(3 [pid 5072] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7076] <... openat resumed>) = 3 [pid 5073] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7076] chdir("./file0" [pid 5073] rmdir("./166" [pid 5072] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7076] <... chdir resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 7076] ioctl(4, LOOP_CLR_FD [pid 5073] mkdir("./167", 0777 [pid 5072] fstat(4, [pid 7076] <... ioctl resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 227.356830][ T7080] loop1: detected capacity change from 0 to 8192 [ 227.370428][ T7073] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 227.371385][ T7074] REISERFS (device loop0): checking transaction log (loop0) [ 227.384431][ T7076] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 227.394498][ T7073] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7076] close(4 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] getdents64(4, [pid 7076] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7076] mkdir(NULL, 000 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] getdents64(4, [pid 7076] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7076] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] close(3 [pid 5072] close(4 [pid 7076] <... openat resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 7076] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] rmdir("./164/file0" [pid 7076] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... rmdir resumed>) = 0 [pid 7076] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7083 [pid 5072] getdents64(3, [pid 7076] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7076] exit_group(0 [pid 5072] close(3 [pid 7076] <... exit_group resumed>) = ? [pid 5072] <... close resumed>) = 0 [pid 7076] +++ exited with 0 +++ [pid 5072] rmdir("./164") = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7076, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=16 /* 0.16 s */} --- ./strace-static-x86_64: Process 7083 attached [pid 5072] mkdir("./165", 0777 [pid 7083] chdir("./167" [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [ 227.409887][ T7080] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 227.423344][ T7074] REISERFS (device loop0): Using r5 hash to sort names [ 227.432786][ T7074] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 227.453299][ T7080] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5071] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7083] <... chdir resumed>) = 0 [pid 7073] <... mount resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7083] setpgid(0, 0) = 0 [pid 7083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7083] write(3, "1000", 4) = 4 [pid 7083] close(3) = 0 [pid 7083] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7083] memfd_create("syzkaller", 0) = 3 [pid 7083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7074] <... mount resumed>) = 0 [pid 7073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] close(3 [pid 5071] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7074] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7073] <... openat resumed>) = 3 [pid 5072] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 7074] chdir("./file0" [pid 7073] chdir("./file0" [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] fstat(3, [pid 7074] <... chdir resumed>) = 0 [pid 7073] <... chdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7074] ioctl(4, LOOP_CLR_FD [pid 7073] ioctl(4, LOOP_CLR_FD [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7084 [pid 5071] getdents64(3, [pid 7074] <... ioctl resumed>) = 0 [pid 7073] <... ioctl resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7074] close(4 [pid 7073] close(4 [pid 5071] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7074] <... close resumed>) = 0 [pid 7073] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7074] mkdir(NULL, 000 [pid 7073] mkdir(NULL, 000 [pid 5071] lstat("./165/binderfs", [pid 7074] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7073] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7074] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7073] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] unlink("./165/binderfs" [pid 7074] <... openat resumed>) = 4 [pid 7073] <... openat resumed>) = 4 [pid 5071] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 7084 attached [pid 7074] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7073] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7084] chdir("./165" [pid 7074] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7073] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7084] <... chdir resumed>) = 0 [pid 7074] mount(NULL, "./bus", NULL, 0, NULL [pid 7073] mount(NULL, "./bus", NULL, 0, NULL [pid 7084] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7074] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7073] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7084] <... prctl resumed>) = 0 [pid 7074] exit_group(0 [pid 7073] exit_group(0 [pid 7084] setpgid(0, 0 [pid 7074] <... exit_group resumed>) = ? [pid 7073] <... exit_group resumed>) = ? [pid 7084] <... setpgid resumed>) = 0 [pid 7083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7074] +++ exited with 0 +++ [pid 7073] +++ exited with 0 +++ [pid 7084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7073, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 7084] <... openat resumed>) = 3 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7074, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 7084] write(3, "1000", 4 [pid 5074] <... restart_syscall resumed>) = 0 [ 227.463114][ T7074] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 227.474407][ T7080] REISERFS (device loop1): using ordered data mode [ 227.482679][ T7080] reiserfs: using flush barriers [ 227.490819][ T7080] 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 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7084] <... write resumed>) = 4 [pid 5069] <... restart_syscall resumed>) = 0 [pid 7084] close(3) = 0 [pid 5074] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7084] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./161", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7084] <... symlink resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7084] memfd_create("syzkaller", 0 [pid 7083] <... write resumed>) = 4194304 [pid 5074] <... openat resumed>) = 3 [pid 7084] <... memfd_create resumed>) = 3 [pid 7083] munmap(0x7f8a1b2e3000, 4194304 [pid 7084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7083] <... munmap resumed>) = 0 [pid 7084] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7083] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] fstat(3, [pid 5071] <... umount2 resumed>) = 0 [ 227.567595][ T7080] REISERFS (device loop1): checking transaction log (loop1) [ 227.592278][ T7080] REISERFS (device loop1): Using r5 hash to sort names [pid 5069] openat(AT_FDCWD, "./161", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7083] <... openat resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 7083] ioctl(4, LOOP_SET_FD, 3 [pid 5074] getdents64(3, [pid 5069] fstat(3, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] lstat("./169/binderfs", [pid 5069] umount2("./161/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] unlink("./169/binderfs" [pid 5069] lstat("./161/binderfs", [pid 5074] <... unlink resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] unlink("./161/binderfs") = 0 [pid 5069] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./165/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./165/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./165") = 0 [pid 5071] mkdir("./166", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 227.606023][ T7080] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 227.622580][ T7083] loop4: detected capacity change from 0 to 8192 [pid 5071] close(3 [pid 7083] <... ioctl resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 7083] close(3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7083] <... close resumed>) = 0 [pid 7083] mkdir("./file0", 0777) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7085 [pid 7083] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 7085 attached [pid 7085] chdir("./166" [pid 7084] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7080] <... mount resumed>) = 0 [ 227.665600][ T7080] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 227.683854][ T7083] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7085] <... chdir resumed>) = 0 [pid 7080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7085] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7080] <... openat resumed>) = 3 [pid 7085] <... prctl resumed>) = 0 [pid 7080] chdir("./file0" [pid 7085] setpgid(0, 0 [pid 7080] <... chdir resumed>) = 0 [pid 7085] <... setpgid resumed>) = 0 [pid 7080] ioctl(4, LOOP_CLR_FD [pid 7085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7080] <... ioctl resumed>) = 0 [pid 7085] <... openat resumed>) = 3 [pid 7080] close(4 [pid 7085] write(3, "1000", 4 [pid 7080] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7085] <... write resumed>) = 4 [pid 7080] mkdir(NULL, 000 [pid 7085] close(3 [pid 7080] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7085] <... close resumed>) = 0 [pid 7080] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 227.707720][ T7083] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 227.717143][ T7083] REISERFS (device loop4): using ordered data mode [ 227.724115][ T7083] reiserfs: using flush barriers [ 227.733295][ T7083] 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 7085] symlink("/dev/binderfs", "./binderfs" [pid 7084] <... write resumed>) = 4194304 [pid 7080] <... openat resumed>) = 4 [pid 7085] <... symlink resumed>) = 0 [pid 7080] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7085] memfd_create("syzkaller", 0 [pid 7080] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7085] <... memfd_create resumed>) = 3 [pid 7080] mount(NULL, "./bus", NULL, 0, NULL [pid 7085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7080] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7085] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7080] exit_group(0 [pid 7084] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7080] <... exit_group resumed>) = ? [pid 5069] lstat("./161/file0", [pid 7084] <... munmap resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7084] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] lstat("./169/file0", [pid 5069] umount2("./161/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7084] <... openat resumed>) = 4 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7084] ioctl(4, LOOP_SET_FD, 3 [pid 7080] +++ exited with 0 +++ [pid 5074] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] openat(AT_FDCWD, "./161/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7084] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... openat resumed>) = 4 [pid 7084] close(3 [pid 5074] openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7080, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=8 /* 0.08 s */} --- [pid 5069] fstat(4, [pid 7084] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5070] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7084] mkdir("./file0", 0777 [pid 5074] fstat(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 7084] <... mkdir resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7084] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] getdents64(4, [pid 5070] <... openat resumed>) = 3 [pid 5069] getdents64(4, [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] fstat(3, [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] close(4 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5074] close(4 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] rmdir("./161/file0" [pid 5074] <... close resumed>) = 0 [pid 5070] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5074] rmdir("./169/file0" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(3, [pid 5074] <... rmdir resumed>) = 0 [pid 5070] lstat("./164/binderfs", [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(3, [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] close(3 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] unlink("./164/binderfs" [pid 5069] <... close resumed>) = 0 [pid 5074] close(3 [pid 5070] <... unlink resumed>) = 0 [pid 5069] rmdir("./161" [pid 5074] <... close resumed>) = 0 [pid 5070] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 5074] rmdir("./169" [ 227.775725][ T7083] REISERFS (device loop4): checking transaction log (loop4) [ 227.787357][ T7083] REISERFS (device loop4): Using r5 hash to sort names [ 227.799711][ T7084] loop3: detected capacity change from 0 to 8192 [ 227.807829][ T7083] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] mkdir("./162", 0777 [pid 5074] <... rmdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5074] mkdir("./170", 0777 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... mkdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5074] <... openat resumed>) = 3 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5069] close(3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... close resumed>) = 0 [pid 5074] close(3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7088 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7089 ./strace-static-x86_64: Process 7089 attached ./strace-static-x86_64: Process 7088 attached [pid 7089] chdir("./170" [pid 7088] chdir("./162" [pid 7089] <... chdir resumed>) = 0 [pid 7089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7088] <... chdir resumed>) = 0 [pid 7089] <... prctl resumed>) = 0 [pid 7088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7089] setpgid(0, 0 [pid 7088] <... prctl resumed>) = 0 [pid 7089] <... setpgid resumed>) = 0 [pid 7088] setpgid(0, 0 [pid 7089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7088] <... setpgid resumed>) = 0 [pid 7089] <... openat resumed>) = 3 [pid 7088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7089] write(3, "1000", 4 [pid 7088] <... openat resumed>) = 3 [pid 7089] <... write resumed>) = 4 [pid 7088] write(3, "1000", 4 [pid 7089] close(3 [pid 7088] <... write resumed>) = 4 [pid 7089] <... close resumed>) = 0 [pid 7088] close(3 [pid 7089] symlink("/dev/binderfs", "./binderfs" [pid 7088] <... close resumed>) = 0 [pid 7089] <... symlink resumed>) = 0 [pid 7088] symlink("/dev/binderfs", "./binderfs" [pid 7089] memfd_create("syzkaller", 0 [pid 7088] <... symlink resumed>) = 0 [pid 7089] <... memfd_create resumed>) = 3 [pid 7088] memfd_create("syzkaller", 0 [pid 7089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7088] <... memfd_create resumed>) = 3 [pid 7089] <... mmap resumed>) = 0x7f8a1b2e3000 [ 227.822414][ T7084] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7085] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7088] <... mmap resumed>) = 0x7f8a1b2e3000 [ 227.876691][ T7084] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 227.885982][ T7084] REISERFS (device loop3): using ordered data mode [ 227.887727][ T7083] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 227.893833][ T7084] reiserfs: using flush barriers [pid 7088] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7083] <... mount resumed>) = 0 [pid 5070] <... umount2 resumed>) = 0 [pid 7089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5070] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7083] chdir("./file0" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7083] <... chdir resumed>) = 0 [pid 5070] lstat("./164/file0", [pid 7083] ioctl(4, LOOP_CLR_FD [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7083] <... ioctl resumed>) = 0 [pid 5070] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7083] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7083] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7083] mkdir(NULL, 000 [pid 5070] <... openat resumed>) = 4 [pid 7083] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5070] fstat(4, [pid 7083] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7083] <... openat resumed>) = 4 [pid 7083] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7088] <... write resumed>) = 4194304 [pid 5070] getdents64(4, [pid 7088] munmap(0x7f8a1b2e3000, 4194304 [pid 7083] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [ 227.943914][ T7084] 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 7088] <... munmap resumed>) = 0 [pid 7083] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] getdents64(4, [pid 7088] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7083] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7088] <... openat resumed>) = 4 [pid 7085] <... write resumed>) = 4194304 [pid 7083] exit_group(0 [pid 7088] ioctl(4, LOOP_SET_FD, 3 [pid 7085] munmap(0x7f8a1b2e3000, 4194304 [pid 7083] <... exit_group resumed>) = ? [pid 5070] close(4 [pid 7083] +++ exited with 0 +++ [pid 5070] <... close resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7083, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5070] rmdir("./164/file0" [pid 7085] <... munmap resumed>) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 7085] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] <... rmdir resumed>) = 0 [pid 7088] <... ioctl resumed>) = 0 [pid 7085] <... openat resumed>) = 4 [pid 7088] close(3 [pid 7085] ioctl(4, LOOP_SET_FD, 3 [pid 5073] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] getdents64(3, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 228.004001][ T7084] REISERFS (device loop3): checking transaction log (loop3) [ 228.021287][ T7084] REISERFS (device loop3): Using r5 hash to sort names [ 228.021707][ T7088] loop0: detected capacity change from 0 to 8192 [ 228.043984][ T7085] loop2: detected capacity change from 0 to 8192 [pid 7088] <... close resumed>) = 0 [pid 7085] <... ioctl resumed>) = 0 [pid 5073] unlink("./167/binderfs" [pid 5070] close(3 [pid 7088] mkdir("./file0", 0777 [pid 7085] close(3 [pid 5073] <... unlink resumed>) = 0 [pid 7088] <... mkdir resumed>) = 0 [pid 7085] <... close resumed>) = 0 [pid 5073] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 7089] <... write resumed>) = 4194304 [pid 7088] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7085] mkdir("./file0", 0777 [pid 7089] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] rmdir("./164" [pid 7085] <... mkdir resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 7089] <... munmap resumed>) = 0 [pid 7089] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7085] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] mkdir("./165", 0777 [pid 7089] <... openat resumed>) = 4 [pid 5070] <... mkdir resumed>) = 0 [ 228.047429][ T7084] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 228.072344][ T7084] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 228.088824][ T7089] loop5: detected capacity change from 0 to 8192 [pid 7089] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7084] <... mount resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7089] close(3 [pid 7084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... openat resumed>) = 3 [pid 7089] <... close resumed>) = 0 [pid 7084] <... openat resumed>) = 3 [pid 7089] mkdir("./file0", 0777 [pid 7084] chdir("./file0" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7089] <... mkdir resumed>) = 0 [pid 7084] <... chdir resumed>) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7089] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7084] ioctl(4, LOOP_CLR_FD [pid 5070] close(3 [pid 7084] <... ioctl resumed>) = 0 [pid 7084] close(4 [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 7084] <... close resumed>) = 0 [pid 5073] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7084] mkdir(NULL, 000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7084] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] lstat("./167/file0", [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7093 [ 228.097166][ T7088] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.097368][ T7085] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.136458][ T7085] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 7084] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 7093 attached [pid 7084] <... openat resumed>) = 4 [pid 5073] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7093] chdir("./165" [pid 7084] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7084] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7093] <... chdir resumed>) = 0 [pid 7084] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... openat resumed>) = 4 [pid 7093] prctl(PR_SET_PDEATHSIG, SIGKILL [ 228.150623][ T7088] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 228.160625][ T7089] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.160985][ T7088] REISERFS (device loop0): using ordered data mode [ 228.180287][ T7085] REISERFS (device loop2): using ordered data mode [ 228.182087][ T7088] reiserfs: using flush barriers [pid 7084] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] fstat(4, [pid 7093] <... prctl resumed>) = 0 [pid 7084] exit_group(0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7084] <... exit_group resumed>) = ? [pid 5073] getdents64(4, [pid 7084] +++ exited with 0 +++ [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7084, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5072] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./167/file0" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... rmdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(3, [pid 5072] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] fstat(3, [pid 5073] close(3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] getdents64(3, [pid 5073] rmdir("./167" [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] mkdir("./168", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7093] setpgid(0, 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5072] lstat("./165/binderfs", [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5072] unlink("./165/binderfs" [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] <... unlink resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] close(3 [pid 7093] <... setpgid resumed>) = 0 [pid 5073] <... close resumed>) = 0 [ 228.196904][ T7088] 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 [ 228.214405][ T7089] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 228.224326][ T7085] reiserfs: using flush barriers [ 228.230776][ T7088] REISERFS (device loop0): checking transaction log (loop0) [ 228.240333][ T7089] REISERFS (device loop5): using ordered data mode [ 228.240819][ T7088] REISERFS (device loop0): Using r5 hash to sort names [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7094 attached [pid 7093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7094] chdir("./168" [pid 7093] <... openat resumed>) = 3 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7094 [pid 7094] <... chdir resumed>) = 0 [pid 7093] write(3, "1000", 4 [pid 7094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7094] setpgid(0, 0) = 0 [pid 7094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7094] write(3, "1000", 4) = 4 [pid 7094] close(3) = 0 [pid 7094] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7094] memfd_create("syzkaller", 0) = 3 [pid 7094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7093] <... write resumed>) = 4 [pid 7093] close(3) = 0 [pid 7093] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7093] memfd_create("syzkaller", 0) = 3 [pid 7093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 228.247189][ T7089] reiserfs: using flush barriers [ 228.263622][ T7089] 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 [ 228.280644][ T7085] 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] <... umount2 resumed>) = 0 [pid 5072] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7094] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./165/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./165/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./165") = 0 [pid 5072] mkdir("./166", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [ 228.316620][ T7088] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 228.350585][ T7089] REISERFS (device loop5): checking transaction log (loop5) [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=0x555556cad5d0) = 7095 ./strace-static-x86_64: Process 7095 attached [pid 7095] chdir("./166") = 0 [pid 7093] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7088] <... mount resumed>) = 0 [pid 7095] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7095] <... prctl resumed>) = 0 [pid 7088] <... openat resumed>) = 3 [pid 7095] setpgid(0, 0 [pid 7088] chdir("./file0" [pid 7095] <... setpgid resumed>) = 0 [pid 7088] <... chdir resumed>) = 0 [pid 7095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7088] ioctl(4, LOOP_CLR_FD [pid 7095] <... openat resumed>) = 3 [pid 7088] <... ioctl resumed>) = 0 [pid 7095] write(3, "1000", 4 [pid 7088] close(4 [pid 7095] <... write resumed>) = 4 [pid 7088] <... close resumed>) = 0 [pid 7095] close(3 [pid 7088] mkdir(NULL, 000 [pid 7095] <... close resumed>) = 0 [pid 7095] symlink("/dev/binderfs", "./binderfs" [pid 7088] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7095] <... symlink resumed>) = 0 [pid 7088] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7095] memfd_create("syzkaller", 0) = 3 [pid 7088] <... openat resumed>) = 4 [ 228.366979][ T7085] REISERFS (device loop2): checking transaction log (loop2) [ 228.386664][ T7088] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 228.398987][ T7089] REISERFS (device loop5): Using r5 hash to sort names [pid 7095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7088] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7095] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7088] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7088] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7094] <... write resumed>) = 4194304 [pid 7088] exit_group(0) = ? [pid 7094] munmap(0x7f8a1b2e3000, 4194304 [pid 7088] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7088, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5069] umount2("./162", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./162", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./162/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./162/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./162/binderfs") = 0 [pid 5069] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7094] <... munmap resumed>) = 0 [pid 7094] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 228.423596][ T7089] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 228.452340][ T7085] REISERFS (device loop2): Using r5 hash to sort names [pid 7094] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7094] close(3) = 0 [pid 7094] mkdir("./file0", 0777) = 0 [ 228.470194][ T7094] loop4: detected capacity change from 0 to 8192 [ 228.480689][ T7085] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 228.494073][ T7089] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7094] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7093] <... write resumed>) = 4194304 [pid 7093] munmap(0x7f8a1b2e3000, 4194304 [pid 7089] <... mount resumed>) = 0 [pid 7095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7093] <... munmap resumed>) = 0 [ 228.521891][ T7094] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.558926][ T7094] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 7089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7093] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7089] <... openat resumed>) = 3 [pid 7089] chdir("./file0" [pid 7093] <... openat resumed>) = 4 [pid 7089] <... chdir resumed>) = 0 [pid 7093] ioctl(4, LOOP_SET_FD, 3 [pid 7089] ioctl(4, LOOP_CLR_FD) = 0 [pid 7089] close(4) = 0 [pid 7089] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7089] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7089] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7089] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7093] <... ioctl resumed>) = 0 [pid 7089] exit_group(0 [pid 7093] close(3 [pid 7089] <... exit_group resumed>) = ? [pid 7093] <... close resumed>) = 0 [pid 7089] +++ exited with 0 +++ [pid 7093] mkdir("./file0", 0777) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7089, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} --- [pid 7093] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] <... umount2 resumed>) = 0 [pid 5074] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 228.568507][ T7094] REISERFS (device loop4): using ordered data mode [ 228.571415][ T7085] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 228.584636][ T7094] reiserfs: using flush barriers [ 228.592295][ T7093] loop1: detected capacity change from 0 to 8192 [ 228.599506][ T7094] 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 5074] unlink("./170/binderfs" [pid 5069] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./162/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./162/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./162/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./162/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./162" [pid 5074] <... unlink resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5074] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7095] <... write resumed>) = 4194304 [pid 7085] <... mount resumed>) = 0 [pid 5069] mkdir("./163", 0777 [pid 7085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7095] munmap(0x7f8a1b2e3000, 4194304 [pid 7085] chdir("./file0" [pid 5069] <... mkdir resumed>) = 0 [pid 7095] <... munmap resumed>) = 0 [pid 7085] <... chdir resumed>) = 0 [pid 7095] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7085] ioctl(4, LOOP_CLR_FD [pid 7095] <... openat resumed>) = 4 [pid 7085] <... ioctl resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [ 228.642458][ T7093] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.660158][ T7093] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 228.671011][ T7093] REISERFS (device loop1): using ordered data mode [ 228.673346][ T7094] REISERFS (device loop4): checking transaction log (loop4) [ 228.678021][ T7093] reiserfs: using flush barriers [pid 7095] ioctl(4, LOOP_SET_FD, 3 [pid 7085] close(4 [pid 5069] <... openat resumed>) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 7085] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7098 [pid 7095] <... ioctl resumed>) = 0 [pid 7085] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7085] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7085] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [ 228.691717][ T7093] 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 [ 228.694419][ T7095] loop3: detected capacity change from 0 to 8192 [ 228.716131][ T7094] REISERFS (device loop4): Using r5 hash to sort names [ 228.723354][ T7094] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7095] close(3 [pid 7085] mount(NULL, "./bus", NULL, 0, NULL./strace-static-x86_64: Process 7098 attached [pid 7095] <... close resumed>) = 0 [pid 7094] <... mount resumed>) = 0 [pid 7085] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... umount2 resumed>) = 0 [pid 7098] chdir("./163" [pid 7095] mkdir("./file0", 0777 [pid 7094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7085] exit_group(0 [pid 5074] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7098] <... chdir resumed>) = 0 [pid 7095] <... mkdir resumed>) = 0 [pid 7094] <... openat resumed>) = 3 [pid 7085] <... exit_group resumed>) = ? [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7095] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7094] chdir("./file0" [pid 7085] +++ exited with 0 +++ [pid 5074] lstat("./170/file0", [pid 7098] <... prctl resumed>) = 0 [pid 7094] <... chdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7085, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 7098] setpgid(0, 0 [pid 7094] ioctl(4, LOOP_CLR_FD [pid 5074] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] restart_syscall(<... resuming interrupted clone ...> [pid 7098] <... setpgid resumed>) = 0 [pid 7094] <... ioctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... restart_syscall resumed>) = 0 [ 228.736749][ T7093] REISERFS (device loop1): checking transaction log (loop1) [ 228.744593][ T7094] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 228.747067][ T7093] REISERFS (device loop1): Using r5 hash to sort names [pid 7098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7094] close(4 [pid 5074] openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7098] <... openat resumed>) = 3 [pid 7094] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 7098] write(3, "1000", 4 [pid 7094] mkdir(NULL, 000 [pid 5074] fstat(4, [pid 7098] <... write resumed>) = 4 [pid 7094] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7098] close(3 [pid 7094] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] getdents64(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7098] <... close resumed>) = 0 [pid 7094] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7098] symlink("/dev/binderfs", "./binderfs" [pid 7094] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] getdents64(4, [pid 5071] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7098] <... symlink resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 7094] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7098] memfd_create("syzkaller", 0 [pid 5074] close(4 [pid 5071] fstat(3, [pid 7094] mount(NULL, "./bus", NULL, 0, NULL [pid 7098] <... memfd_create resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7094] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] rmdir("./170/file0" [pid 5071] getdents64(3, [pid 7098] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7094] exit_group(0 [pid 5074] getdents64(3, [pid 5071] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7093] <... mount resumed>) = 0 [pid 7093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7094] <... exit_group resumed>) = ? [pid 5071] lstat("./166/binderfs", [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7093] <... openat resumed>) = 3 [pid 7093] chdir("./file0" [pid 7094] +++ exited with 0 +++ [pid 5074] close(3 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] <... close resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7094, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- [pid 5071] unlink("./166/binderfs" [pid 5074] rmdir("./170" [pid 5071] <... unlink resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5073] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] mkdir("./171", 0777 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7093] <... chdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7093] ioctl(4, LOOP_CLR_FD [pid 5074] <... mkdir resumed>) = 0 [pid 5073] fstat(3, [pid 7093] <... ioctl resumed>) = 0 [ 228.782910][ T7093] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 228.788325][ T7095] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 228.798194][ T7093] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7093] close(4) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7093] mkdir(NULL, 000 [pid 5074] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 7093] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7093] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7093] <... openat resumed>) = 4 [pid 5074] close(3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7093] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... close resumed>) = 0 [pid 5073] lstat("./168/binderfs", [pid 7093] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7093] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] unlink("./168/binderfs" [pid 7093] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7100 [pid 5073] <... unlink resumed>) = 0 [pid 7093] exit_group(0 [pid 5073] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7093] <... exit_group resumed>) = ? [pid 7093] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7093, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- ./strace-static-x86_64: Process 7100 attached [pid 5070] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7100] chdir("./171" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7100] <... chdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 228.836550][ T7095] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 228.846033][ T7095] REISERFS (device loop3): using ordered data mode [ 228.852674][ T7095] reiserfs: using flush barriers [ 228.860090][ T7095] 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 7100] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... openat resumed>) = 3 [pid 7100] <... prctl resumed>) = 0 [pid 5070] fstat(3, [pid 7100] setpgid(0, 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7100] <... setpgid resumed>) = 0 [pid 5070] getdents64(3, [pid 7100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7100] <... openat resumed>) = 3 [pid 5070] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7100] write(3, "1000", 4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7100] <... write resumed>) = 4 [pid 5070] lstat("./165/binderfs", [pid 7100] close(3 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7100] <... close resumed>) = 0 [pid 5070] unlink("./165/binderfs" [pid 7100] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... unlink resumed>) = 0 [pid 7100] <... symlink resumed>) = 0 [pid 5070] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7100] memfd_create("syzkaller", 0) = 3 [pid 7100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7098] <... write resumed>) = 4194304 [pid 7100] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7098] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 7098] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7098] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7098] ioctl(4, LOOP_SET_FD, 3 [pid 5071] lstat("./166/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 228.951544][ T7095] REISERFS (device loop3): checking transaction log (loop3) [ 228.967666][ T7095] REISERFS (device loop3): Using r5 hash to sort names [ 228.991675][ T7098] loop0: detected capacity change from 0 to 8192 [pid 7098] <... ioctl resumed>) = 0 [pid 5071] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7098] close(3) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./166/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7098] mkdir("./file0", 0777) = 0 [pid 5071] <... openat resumed>) = 4 [pid 7098] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./166/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./166") = 0 [pid 5071] mkdir("./167", 0777) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] <... umount2 resumed>) = 0 [pid 5071] close(3) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7102 ./strace-static-x86_64: Process 7102 attached [pid 7102] chdir("./167") = 0 [pid 7102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7102] setpgid(0, 0) = 0 [pid 7102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7102] write(3, "1000", 4 [pid 5073] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7102] <... write resumed>) = 4 [pid 7100] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7102] close(3 [ 228.994723][ T7095] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] lstat("./168/file0", [pid 7102] <... close resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7102] symlink("/dev/binderfs", "./binderfs" [pid 5073] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7102] <... symlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7102] memfd_create("syzkaller", 0) = 3 [pid 5073] openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... openat resumed>) = 4 [pid 7102] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] fstat(4, [pid 5070] <... umount2 resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./168/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./168") = 0 [pid 5073] mkdir("./169", 0777 [pid 7095] <... mount resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "/dev/loop4", 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=0x555556cad5d0) = 7103 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 7103 attached [pid 5070] openat(AT_FDCWD, "./165/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7103] chdir("./169") = 0 [pid 7103] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... openat resumed>) = 4 [pid 7103] <... prctl resumed>) = 0 [pid 7103] setpgid(0, 0 [pid 5070] fstat(4, [pid 7103] <... setpgid resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7103] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 7095] <... openat resumed>) = 3 [pid 7103] write(3, "1000", 4 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7103] <... write resumed>) = 4 [ 229.065959][ T7098] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.080396][ T7095] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 229.093995][ T7098] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 5070] getdents64(4, [pid 7095] chdir("./file0" [pid 7103] close(3) = 0 [pid 7103] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7103] memfd_create("syzkaller", 0) = 3 [pid 7103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7095] <... chdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7095] ioctl(4, LOOP_CLR_FD [pid 5070] close(4 [pid 7095] <... ioctl resumed>) = 0 [pid 7095] close(4 [pid 5070] <... close resumed>) = 0 [pid 7095] <... close resumed>) = 0 [pid 5070] rmdir("./165/file0" [pid 7095] mkdir(NULL, 000 [pid 5070] <... rmdir resumed>) = 0 [pid 7095] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7102] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 229.128902][ T7098] REISERFS (device loop0): using ordered data mode [ 229.135480][ T7098] reiserfs: using flush barriers [ 229.143148][ T7098] 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 7095] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] getdents64(3, [pid 7095] <... openat resumed>) = 4 [pid 7095] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7095] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7095] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] close(3 [pid 7095] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... close resumed>) = 0 [pid 7095] exit_group(0 [pid 5070] rmdir("./165" [pid 7095] <... exit_group resumed>) = ? [pid 5070] <... rmdir resumed>) = 0 [pid 7095] +++ exited with 0 +++ [pid 5070] mkdir("./166", 0777 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7095, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5070] <... mkdir resumed>) = 0 [pid 5072] restart_syscall(<... resuming interrupted clone ...> [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7100] <... write resumed>) = 4194304 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5072] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7103] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./166/binderfs") = 0 [pid 5072] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 229.183859][ T7098] REISERFS (device loop0): checking transaction log (loop0) [ 229.209295][ T7098] REISERFS (device loop0): Using r5 hash to sort names [ 229.217529][ T7098] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7100] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [pid 7100] <... munmap resumed>) = 0 [pid 7100] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 7100] ioctl(4, LOOP_SET_FD, 3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7104 ./strace-static-x86_64: Process 7104 attached [pid 7104] chdir("./166") = 0 [pid 7104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7098] <... mount resumed>) = 0 [pid 7104] <... prctl resumed>) = 0 [pid 7098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7104] setpgid(0, 0) = 0 [pid 7104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7098] <... openat resumed>) = 3 [pid 7104] <... openat resumed>) = 3 [pid 7100] <... ioctl resumed>) = 0 [pid 7098] chdir("./file0" [pid 7104] write(3, "1000", 4 [pid 7100] close(3 [pid 7104] <... write resumed>) = 4 [pid 7100] <... close resumed>) = 0 [pid 7104] close(3 [pid 7100] mkdir("./file0", 0777 [pid 7104] <... close resumed>) = 0 [pid 7100] <... mkdir resumed>) = 0 [pid 7098] <... chdir resumed>) = 0 [pid 7104] symlink("/dev/binderfs", "./binderfs" [pid 7100] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7104] <... symlink resumed>) = 0 [pid 7098] ioctl(4, LOOP_CLR_FD [pid 7104] memfd_create("syzkaller", 0 [pid 7098] <... ioctl resumed>) = 0 [pid 7104] <... memfd_create resumed>) = 3 [pid 7104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 229.231591][ T7098] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 229.243701][ T7100] loop5: detected capacity change from 0 to 8192 [pid 7098] close(4) = 0 [pid 7098] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7098] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7098] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7098] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7098] exit_group(0) = ? [pid 7098] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7098, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5069] umount2("./163", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./166/file0", 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, "./163", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] lstat("./166/file0", [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./163/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./163/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./163/binderfs" [pid 5072] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [ 229.310415][ T7100] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5072] openat(AT_FDCWD, "./166/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [ 229.353094][ T7100] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 229.376351][ T7100] REISERFS (device loop5): using ordered data mode [ 229.383728][ T7100] reiserfs: using flush barriers [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7102] <... write resumed>) = 4194304 [pid 5072] close(4 [pid 7102] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./166/file0" [pid 7102] <... munmap resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7102] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5072] close(3 [pid 7103] <... write resumed>) = 4194304 [pid 7102] <... openat resumed>) = 4 [pid 5072] <... close resumed>) = 0 [pid 7102] ioctl(4, LOOP_SET_FD, 3 [pid 5072] rmdir("./166" [pid 7103] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7103] <... munmap resumed>) = 0 [pid 5072] mkdir("./167", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7103] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] <... openat resumed>) = 3 [pid 7103] <... openat resumed>) = 4 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 7103] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7104] <... write resumed>) = 4194304 [pid 7102] <... ioctl resumed>) = 0 [pid 5072] close(3 [pid 5069] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 229.397668][ T7100] 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 [ 229.431439][ T7102] loop2: detected capacity change from 0 to 8192 [ 229.432446][ T7100] REISERFS (device loop5): checking transaction log (loop5) [ 229.447082][ T7103] loop4: detected capacity change from 0 to 8192 [pid 7104] munmap(0x7f8a1b2e3000, 4194304 [pid 7103] <... ioctl resumed>) = 0 [pid 7102] close(3 [pid 5072] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7104] <... munmap resumed>) = 0 [pid 7103] close(3 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7103] <... close resumed>) = 0 [pid 7103] mkdir("./file0", 0777 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7106 [pid 7103] <... mkdir resumed>) = 0 [pid 7103] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 7106 attached [pid 7106] chdir("./167") = 0 [pid 7102] <... close resumed>) = 0 [pid 7102] mkdir("./file0", 0777 [pid 7104] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7102] <... mkdir resumed>) = 0 [pid 5069] lstat("./163/file0", [pid 7102] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7106] setpgid(0, 0) = 0 [pid 7106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7104] <... openat resumed>) = 4 [ 229.458576][ T7100] REISERFS (device loop5): Using r5 hash to sort names [ 229.465685][ T7100] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 229.478815][ T7100] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 229.490509][ T7104] loop1: detected capacity change from 0 to 8192 [pid 7106] <... openat resumed>) = 3 [pid 7104] ioctl(4, LOOP_SET_FD, 3 [pid 7100] <... mount resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] umount2("./163/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7100] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7100] chdir("./file0" [pid 5069] openat(AT_FDCWD, "./163/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7104] <... ioctl resumed>) = 0 [pid 7100] <... chdir resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 7104] close(3 [pid 7100] ioctl(4, LOOP_CLR_FD [pid 5069] fstat(4, [pid 7104] <... close resumed>) = 0 [pid 7100] <... ioctl resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7104] mkdir("./file0", 0777 [pid 7100] close(4 [pid 5069] getdents64(4, [pid 7104] <... mkdir resumed>) = 0 [pid 7100] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7104] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7100] mkdir(NULL, 000 [pid 5069] getdents64(4, [pid 7100] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7100] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] close(4 [pid 7100] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 7100] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5069] rmdir("./163/file0" [pid 7100] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... rmdir resumed>) = 0 [pid 7100] mount(NULL, "./bus", NULL, 0, NULL [pid 5069] getdents64(3, [pid 7100] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7100] exit_group(0 [pid 5069] close(3 [pid 7100] <... exit_group resumed>) = ? [pid 5069] <... close resumed>) = 0 [pid 7100] +++ exited with 0 +++ [pid 5069] rmdir("./163") = 0 [pid 5069] mkdir("./164", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", 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=0x555556cad5d0) = 7109 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7100, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} --- [pid 5074] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./171/binderfs") = 0 [pid 5074] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7106] write(3, "1000", 4) = 4 [pid 7106] close(3) = 0 [pid 7106] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7106] memfd_create("syzkaller", 0) = 3 [pid 7106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 229.490510][ T7103] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.490533][ T7103] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 229.510777][ T7102] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.532831][ T7102] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 229.543007][ T7102] REISERFS (device loop2): using ordered data mode ./strace-static-x86_64: Process 7109 attached [pid 7109] chdir("./164") = 0 [ 229.543621][ T7104] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 229.549793][ T7102] reiserfs: using flush barriers [ 229.569508][ T7103] REISERFS (device loop4): using ordered data mode [ 229.576083][ T7103] reiserfs: using flush barriers [ 229.582331][ T7103] 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 [ 229.599592][ T7103] REISERFS (device loop4): checking transaction log (loop4) [pid 7109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7109] setpgid(0, 0) = 0 [pid 7109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7109] write(3, "1000", 4) = 4 [pid 7109] close(3) = 0 [pid 7109] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7109] memfd_create("syzkaller", 0) = 3 [pid 7109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 229.606359][ T7102] 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 [ 229.624108][ T7102] REISERFS (device loop2): checking transaction log (loop2) [ 229.633005][ T7102] REISERFS (device loop2): Using r5 hash to sort names [ 229.636316][ T7103] REISERFS (device loop4): Using r5 hash to sort names [ 229.640215][ T7102] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7102] <... mount resumed>) = 0 [pid 7102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7102] chdir("./file0") = 0 [pid 7102] ioctl(4, LOOP_CLR_FD) = 0 [pid 7102] close(4) = 0 [pid 7102] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7102] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7102] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7102] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7106] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 229.659805][ T7102] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 229.690143][ T7104] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 7102] exit_group(0) = ? [pid 7102] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7102, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5071] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./167", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./167/binderfs") = 0 [ 229.696834][ T7103] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7106] <... write resumed>) = 4194304 [pid 7106] munmap(0x7f8a1b2e3000, 4194304 [pid 7103] <... mount resumed>) = 0 [pid 7109] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7106] <... munmap resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7106] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5071] lstat("./167/file0", [pid 7106] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7106] close(3 [pid 7103] <... openat resumed>) = 3 [pid 5071] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7106] <... close resumed>) = 0 [pid 7103] chdir("./file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 229.746457][ T7104] REISERFS (device loop1): using ordered data mode [ 229.748291][ T7103] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 229.752987][ T7104] reiserfs: using flush barriers [ 229.770551][ T7104] 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 [ 229.782078][ T7106] loop3: detected capacity change from 0 to 8192 [pid 7106] mkdir("./file0", 0777 [pid 7103] <... chdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7106] <... mkdir resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 7106] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7103] ioctl(4, LOOP_CLR_FD [pid 5071] fstat(4, [pid 7103] <... ioctl resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7109] <... write resumed>) = 4194304 [pid 7103] close(4 [pid 5071] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./167/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./167") = 0 [pid 5071] mkdir("./168", 0777) = 0 [pid 5071] 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 7109] munmap(0x7f8a1b2e3000, 4194304 [pid 7103] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 7109] <... munmap resumed>) = 0 [pid 7103] mkdir(NULL, 000 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7109] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7103] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7109] <... openat resumed>) = 4 [pid 7103] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7112 [pid 7109] ioctl(4, LOOP_SET_FD, 3 [pid 7103] <... openat resumed>) = 4 [ 229.810300][ T7104] REISERFS (device loop1): checking transaction log (loop1) [ 229.827222][ T7106] REISERFS warning: read_super_block: Using r5 hash to sort names [ 229.827222][ T7106] [ 229.827231][ T7104] REISERFS (device loop1): Using r5 hash to sort names [ 229.827429][ T7104] 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 7112 attached [pid 7109] <... ioctl resumed>) = 0 [pid 7103] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... umount2 resumed>) = 0 [pid 7112] chdir("./168" [pid 7109] close(3 [pid 7112] <... chdir resumed>) = 0 [pid 7104] <... mount resumed>) = 0 [pid 7103] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7109] <... close resumed>) = 0 [pid 7112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7112] <... prctl resumed>) = 0 [pid 7109] mkdir("./file0", 0777 [pid 7103] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7112] setpgid(0, 0 [pid 7109] <... mkdir resumed>) = 0 [pid 7104] <... openat resumed>) = 3 [pid 7103] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] lstat("./171/file0", [pid 7112] <... setpgid resumed>) = 0 [pid 7109] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7104] chdir("./file0" [pid 7103] exit_group(0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 229.872062][ T7109] loop0: detected capacity change from 0 to 8192 [ 229.876414][ T7106] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 229.882382][ T7104] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 229.897869][ T7106] REISERFS (device loop3): using ordered data mode [ 229.904835][ T7106] reiserfs: using flush barriers [pid 7112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7104] <... chdir resumed>) = 0 [pid 7103] <... exit_group resumed>) = ? [pid 5074] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7112] write(3, "1000", 4 [pid 7104] ioctl(4, LOOP_CLR_FD [pid 7112] <... write resumed>) = 4 [pid 7104] <... ioctl resumed>) = 0 [pid 7103] +++ exited with 0 +++ [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7112] close(3 [pid 7104] close(4 [pid 5074] openat(AT_FDCWD, "./171/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7103, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 7112] <... close resumed>) = 0 [pid 7104] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 7104] mkdir(NULL, 000 [pid 5074] fstat(4, [pid 7104] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7104] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] getdents64(4, [pid 7104] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7104] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] getdents64(4, [pid 7104] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7104] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] close(4 [pid 7104] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... close resumed>) = 0 [pid 7104] exit_group(0 [pid 5074] rmdir("./171/file0" [pid 7104] <... exit_group resumed>) = ? [pid 5074] <... rmdir resumed>) = 0 [pid 7104] +++ exited with 0 +++ [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7104, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] close(3) = 0 [pid 5074] rmdir("./171") = 0 [pid 5074] mkdir("./172", 0777 [pid 7112] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7112] <... symlink resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5070] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7112] memfd_create("syzkaller", 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7112] <... memfd_create resumed>) = 3 [pid 5074] close(3 [pid 5070] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] fstat(3, [pid 7112] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7114 [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./166/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./166/binderfs") = 0 [ 229.912720][ T7106] 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 [ 229.937554][ T7109] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5070] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./169", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./169/binderfs") = 0 [ 229.968583][ T7106] REISERFS (device loop3): checking transaction log (loop3) [ 229.976427][ T7109] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 229.985927][ T7109] REISERFS (device loop0): using ordered data mode [ 229.992863][ T7109] reiserfs: using flush barriers [ 229.998091][ T7106] REISERFS (device loop3): Using r5 hash to sort names [ 230.005181][ T7106] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7114 attached [pid 7106] <... mount resumed>) = 0 [pid 7114] chdir("./172" [pid 7106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7114] <... chdir resumed>) = 0 [pid 7106] <... openat resumed>) = 3 [pid 7114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7106] chdir("./file0" [pid 7114] <... prctl resumed>) = 0 [pid 7106] <... chdir resumed>) = 0 [pid 7114] setpgid(0, 0 [pid 7106] ioctl(4, LOOP_CLR_FD [pid 7114] <... setpgid resumed>) = 0 [pid 7106] <... ioctl resumed>) = 0 [pid 7114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7106] close(4 [pid 7114] <... openat resumed>) = 3 [pid 7106] <... close resumed>) = 0 [pid 7114] write(3, "1000", 4 [pid 7106] mkdir(NULL, 000 [pid 7114] <... write resumed>) = 4 [pid 7112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7106] <... mkdir resumed>) = -1 EFAULT (Bad address) [ 230.018587][ T7106] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 7114] close(3) = 0 [pid 7106] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7114] symlink("/dev/binderfs", "./binderfs" [pid 7106] <... openat resumed>) = 4 [pid 7114] <... symlink resumed>) = 0 [pid 7106] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7114] memfd_create("syzkaller", 0 [pid 7106] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7114] <... memfd_create resumed>) = 3 [pid 7112] <... write resumed>) = 4194304 [pid 7106] mount(NULL, "./bus", NULL, 0, NULL [pid 7114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7112] munmap(0x7f8a1b2e3000, 4194304 [pid 7106] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7114] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7112] <... munmap resumed>) = 0 [pid 7106] exit_group(0 [pid 7112] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7106] <... exit_group resumed>) = ? [pid 7112] <... openat resumed>) = 4 [ 230.054099][ T7109] 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 7112] ioctl(4, LOOP_SET_FD, 3 [pid 7106] +++ exited with 0 +++ [pid 7112] <... ioctl resumed>) = 0 [pid 7112] close(3 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7106, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 7112] <... close resumed>) = 0 [pid 5072] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7112] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7112] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./167", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7112] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... openat resumed>) = 3 [pid 5070] <... umount2 resumed>) = 0 [pid 5072] fstat(3, [pid 5070] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7114] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./167/binderfs") = 0 [ 230.116691][ T7112] loop2: detected capacity change from 0 to 8192 [ 230.149805][ T7109] REISERFS (device loop0): checking transaction log (loop0) [pid 5072] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5070] lstat("./166/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./166/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./169/file0", [pid 5070] close(4 [ 230.158066][ T7112] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.178062][ T7109] REISERFS (device loop0): Using r5 hash to sort names [ 230.186539][ T7112] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 230.203033][ T7109] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./169/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, [pid 5070] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] rmdir("./166/file0" [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] close(4 [pid 5070] getdents64(3, [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./169/file0" [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7114] <... write resumed>) = 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 5070] close(3 [pid 7114] munmap(0x7f8a1b2e3000, 4194304 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./169") = 0 [pid 5073] mkdir("./170", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 230.215984][ T7112] REISERFS (device loop2): using ordered data mode [ 230.241581][ T7112] reiserfs: using flush barriers [ 230.248209][ T7112] 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] close(3 [pid 5070] <... close resumed>) = 0 [pid 7114] <... munmap resumed>) = 0 [pid 7109] <... mount resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] rmdir("./166" [pid 7114] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7116 ./strace-static-x86_64: Process 7116 attached [pid 7116] chdir("./170" [pid 5072] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7116] <... chdir resumed>) = 0 [pid 7114] <... openat resumed>) = 4 [pid 7109] <... openat resumed>) = 3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... rmdir resumed>) = 0 [pid 7114] ioctl(4, LOOP_SET_FD, 3 [pid 7109] chdir("./file0" [pid 5072] lstat("./167/file0", [pid 5070] mkdir("./167", 0777 [pid 7114] <... ioctl resumed>) = 0 [pid 7109] <... chdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... mkdir resumed>) = 0 [pid 7116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7109] ioctl(4, LOOP_CLR_FD [pid 5072] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7116] <... prctl resumed>) = 0 [pid 7109] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 7116] setpgid(0, 0 [pid 7114] close(3 [ 230.265509][ T7109] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 230.288687][ T7112] REISERFS (device loop2): checking transaction log (loop2) [ 230.298787][ T7114] loop5: detected capacity change from 0 to 8192 [ 230.299307][ T7112] REISERFS (device loop2): Using r5 hash to sort names [pid 7109] close(4 [pid 5072] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7116] <... setpgid resumed>) = 0 [pid 7114] <... close resumed>) = 0 [pid 7109] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7114] mkdir("./file0", 0777 [pid 7109] mkdir(NULL, 000 [pid 5072] fstat(4, [pid 5070] close(3 [pid 7116] <... openat resumed>) = 3 [pid 7114] <... mkdir resumed>) = 0 [pid 7109] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... close resumed>) = 0 [pid 7116] write(3, "1000", 4 [pid 7114] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7109] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] getdents64(4, [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7116] <... write resumed>) = 4 [pid 7109] <... openat resumed>) = 4 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 ./strace-static-x86_64: Process 7118 attached [pid 7116] close(3 [pid 7109] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] getdents64(4, [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7118 [pid 7116] <... close resumed>) = 0 [pid 7109] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7116] symlink("/dev/binderfs", "./binderfs" [pid 7109] mount(NULL, "./bus", NULL, 0, NULL [pid 5072] close(4 [pid 7116] <... symlink resumed>) = 0 [pid 7109] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7118] chdir("./167" [pid 5072] <... close resumed>) = 0 [pid 7118] <... chdir resumed>) = 0 [pid 7116] memfd_create("syzkaller", 0 [pid 7112] <... mount resumed>) = 0 [pid 7109] exit_group(0 [pid 5072] rmdir("./167/file0" [pid 7118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7116] <... memfd_create resumed>) = 3 [pid 7112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7109] <... exit_group resumed>) = ? [pid 7118] <... prctl resumed>) = 0 [pid 7116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7112] <... openat resumed>) = 3 [pid 5072] <... rmdir resumed>) = 0 [pid 7118] setpgid(0, 0 [pid 7116] <... mmap resumed>) = 0x7f8a1b2e3000 [ 230.313786][ T7112] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.328262][ T7112] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 230.331428][ T7114] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7112] chdir("./file0" [pid 7109] +++ exited with 0 +++ [pid 5072] getdents64(3, [pid 7118] <... setpgid resumed>) = 0 [pid 7112] <... chdir resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7109, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 7118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7112] ioctl(4, LOOP_CLR_FD [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7118] <... openat resumed>) = 3 [pid 7112] <... ioctl resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 7118] write(3, "1000", 4 [pid 7112] close(4 [pid 7118] <... write resumed>) = 4 [pid 7112] <... close resumed>) = 0 [pid 7118] close(3 [pid 7112] mkdir(NULL, 000 [pid 5069] umount2("./164", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7118] <... close resumed>) = 0 [pid 7112] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7118] symlink("/dev/binderfs", "./binderfs" [pid 7112] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] openat(AT_FDCWD, "./164", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7118] <... symlink resumed>) = 0 [pid 7112] <... openat resumed>) = 4 [pid 5069] <... openat resumed>) = 3 [pid 7118] memfd_create("syzkaller", 0 [pid 7112] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] fstat(3, [pid 7118] <... memfd_create resumed>) = 3 [pid 7112] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(3 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7112] mount(NULL, "./bus", NULL, 0, NULL [pid 5072] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 7118] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7112] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] rmdir("./167" [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7112] exit_group(0 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] umount2("./164/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7112] <... exit_group resumed>) = ? [pid 5072] mkdir("./168", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7112] +++ exited with 0 +++ [pid 5069] lstat("./164/binderfs", [pid 5072] <... mkdir resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7112, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] unlink("./164/binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5069] <... unlink resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5071] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(3 [pid 5071] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] <... close resumed>) = 0 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 230.368017][ T7114] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] unlink("./168/binderfs" [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7119 ./strace-static-x86_64: Process 7119 attached [pid 7119] chdir("./168") = 0 [pid 7119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7119] setpgid(0, 0) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 7119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7119] <... openat resumed>) = 3 [ 230.426631][ T7114] REISERFS (device loop5): using ordered data mode [ 230.433212][ T7114] reiserfs: using flush barriers [ 230.444114][ T7114] 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 [ 230.461533][ T7114] REISERFS (device loop5): checking transaction log (loop5) [pid 7119] write(3, "1000", 4) = 4 [pid 7119] close(3) = 0 [pid 7119] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7119] memfd_create("syzkaller", 0) = 3 [pid 7119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7116] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 230.476963][ T7114] REISERFS (device loop5): Using r5 hash to sort names [ 230.506507][ T7114] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7116] <... write resumed>) = 4194304 [pid 7114] <... mount resumed>) = 0 [pid 5069] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7116] munmap(0x7f8a1b2e3000, 4194304 [pid 7114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7116] <... munmap resumed>) = 0 [pid 7114] <... openat resumed>) = 3 [pid 7116] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7114] chdir("./file0" [pid 5069] lstat("./164/file0", [pid 7116] <... openat resumed>) = 4 [pid 7114] <... chdir resumed>) = 0 [pid 7116] ioctl(4, LOOP_SET_FD, 3 [pid 7114] ioctl(4, LOOP_CLR_FD [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7114] <... ioctl resumed>) = 0 [pid 5069] umount2("./164/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7114] close(4 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7114] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./164/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7114] mkdir(NULL, 000 [pid 7116] <... ioctl resumed>) = 0 [pid 7114] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... umount2 resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 7116] close(3 [pid 7114] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(4, [pid 7114] <... openat resumed>) = 4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7116] <... close resumed>) = 0 [pid 7114] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7116] mkdir("./file0", 0777 [pid 7114] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./168/file0", [pid 5069] getdents64(4, [pid 7114] mount(NULL, "./bus", NULL, 0, NULL [pid 7116] <... mkdir resumed>) = 0 [pid 7114] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7116] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7114] exit_group(0 [pid 5071] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] getdents64(4, [pid 7114] <... exit_group resumed>) = ? [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7114] +++ exited with 0 +++ [pid 5071] openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [ 230.541644][ T7114] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 230.576100][ T7116] loop4: detected capacity change from 0 to 8192 [pid 5069] close(4 [pid 5071] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5074] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7119] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] fstat(4, [pid 5074] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] rmdir("./164/file0" [pid 5074] fstat(3, [pid 5071] getdents64(4, [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... rmdir resumed>) = 0 [pid 7118] <... write resumed>) = 4194304 [pid 5074] getdents64(3, [pid 5071] getdents64(4, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./172/binderfs" [pid 7118] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... unlink resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 7118] <... munmap resumed>) = 0 [pid 5074] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(4 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7118] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5069] close(3 [pid 7118] <... openat resumed>) = 4 [pid 5071] rmdir("./168/file0" [pid 5069] <... close resumed>) = 0 [pid 7118] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... rmdir resumed>) = 0 [ 230.609113][ T7116] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.627856][ T7116] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 230.638418][ T7116] REISERFS (device loop4): using ordered data mode [ 230.644730][ T7118] loop1: detected capacity change from 0 to 8192 [ 230.645880][ T7116] reiserfs: using flush barriers [pid 5069] rmdir("./164" [pid 5071] getdents64(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] mkdir("./165", 0777 [pid 5071] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5071] rmdir("./168" [pid 5069] <... openat resumed>) = 3 [pid 7118] <... ioctl resumed>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7118] close(3 [pid 5071] mkdir("./169", 0777 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7118] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [ 230.661900][ T7116] 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 [ 230.679155][ T7116] REISERFS (device loop4): checking transaction log (loop4) [ 230.689484][ T7116] REISERFS (device loop4): Using r5 hash to sort names [ 230.696969][ T7116] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] close(3 [pid 7118] mkdir("./file0", 0777 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 7118] <... mkdir resumed>) = 0 [pid 7116] <... mount resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7118] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7116] <... openat resumed>) = 3 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7121 [pid 7116] chdir("./file0" [pid 5071] close(3 [pid 7116] <... chdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 7116] ioctl(4, LOOP_CLR_FD [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7116] <... ioctl resumed>) = 0 [pid 7116] close(4 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7123 [pid 7116] <... close resumed>) = 0 ./strace-static-x86_64: Process 7123 attached ./strace-static-x86_64: Process 7121 attached [pid 7119] <... write resumed>) = 4194304 [pid 7116] mkdir(NULL, 000 [pid 5074] <... umount2 resumed>) = 0 [pid 7123] chdir("./169" [pid 7119] munmap(0x7f8a1b2e3000, 4194304 [pid 7116] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7123] <... chdir resumed>) = 0 [pid 7119] <... munmap resumed>) = 0 [pid 7116] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7119] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7116] <... openat resumed>) = 4 [pid 5074] lstat("./172/file0", [pid 7123] <... prctl resumed>) = 0 [pid 7121] chdir("./165" [pid 7119] <... openat resumed>) = 4 [pid 7116] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7123] setpgid(0, 0 [pid 7119] ioctl(4, LOOP_SET_FD, 3 [pid 7116] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7123] <... setpgid resumed>) = 0 [pid 7121] <... chdir resumed>) = 0 [pid 7119] <... ioctl resumed>) = 0 [pid 7116] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7119] close(3 [pid 7116] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7123] <... openat resumed>) = 3 [pid 7121] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7119] <... close resumed>) = 0 [pid 7116] exit_group(0 [pid 5074] <... openat resumed>) = 4 [pid 7123] write(3, "1000", 4 [pid 7121] <... prctl resumed>) = 0 [ 230.711831][ T7116] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 230.731924][ T7118] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.747670][ T7119] loop3: detected capacity change from 0 to 8192 [pid 7119] mkdir("./file0", 0777 [pid 7116] <... exit_group resumed>) = ? [pid 5074] fstat(4, [pid 7123] <... write resumed>) = 4 [pid 7121] setpgid(0, 0 [pid 7119] <... mkdir resumed>) = 0 [pid 7116] +++ exited with 0 +++ [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7123] close(3 [pid 7119] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] getdents64(4, [pid 7123] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7123] symlink("/dev/binderfs", "./binderfs" [pid 5074] getdents64(4, [pid 7123] <... symlink resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7123] memfd_create("syzkaller", 0 [pid 5074] close(4 [pid 7123] <... memfd_create resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 7123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] rmdir("./172/file0" [pid 7123] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... rmdir resumed>) = 0 [ 230.764953][ T7118] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 230.781069][ T7118] REISERFS (device loop1): using ordered data mode [ 230.788894][ T7118] reiserfs: using flush barriers [ 230.795450][ T7118] 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 7121] <... setpgid resumed>) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./172" [pid 7121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... rmdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7116, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] mkdir("./173", 0777 [pid 7121] <... openat resumed>) = 3 [pid 5074] <... mkdir resumed>) = 0 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7121] write(3, "1000", 4 [pid 5074] <... openat resumed>) = 3 [pid 5073] <... restart_syscall resumed>) = 0 [pid 7121] <... write resumed>) = 4 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7121] close(3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 7121] <... close resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7121] symlink("/dev/binderfs", "./binderfs" [pid 5073] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7125 [pid 7121] <... symlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7121] memfd_create("syzkaller", 0 [pid 5073] <... openat resumed>) = 3 [pid 7121] <... memfd_create resumed>) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7121] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./170/binderfs") = 0 [pid 5073] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7123] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7125 attached [pid 7125] chdir("./173") = 0 [pid 7125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7125] setpgid(0, 0) = 0 [ 230.804913][ T7119] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 230.812050][ T7118] REISERFS (device loop1): checking transaction log (loop1) [ 230.837984][ T7118] REISERFS (device loop1): Using r5 hash to sort names [pid 7125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7125] write(3, "1000", 4) = 4 [pid 7125] close(3) = 0 [pid 7125] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7125] memfd_create("syzkaller", 0) = 3 [pid 7125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 230.904987][ T7118] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 230.933723][ T7119] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 230.943128][ T7119] REISERFS (device loop3): using ordered data mode [ 230.949805][ T7119] reiserfs: using flush barriers [pid 7123] <... write resumed>) = 4194304 [pid 7123] munmap(0x7f8a1b2e3000, 4194304 [pid 7121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7118] <... mount resumed>) = 0 [pid 7123] <... munmap resumed>) = 0 [pid 7118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7123] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7118] <... openat resumed>) = 3 [pid 7123] <... openat resumed>) = 4 [pid 7118] chdir("./file0" [pid 7123] ioctl(4, LOOP_SET_FD, 3 [pid 7118] <... chdir resumed>) = 0 [pid 7123] <... ioctl resumed>) = 0 [pid 7118] ioctl(4, LOOP_CLR_FD) = 0 [pid 7118] close(4) = 0 [pid 7118] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7118] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5073] <... umount2 resumed>) = 0 [pid 7118] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7118] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7123] close(3 [pid 7118] exit_group(0 [pid 7123] <... close resumed>) = 0 [pid 7118] <... exit_group resumed>) = ? [pid 7123] mkdir("./file0", 0777 [pid 7118] +++ exited with 0 +++ [pid 7123] <... mkdir resumed>) = 0 [pid 7123] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7118, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5070] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./167", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [ 230.956032][ T7118] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 230.957325][ T7119] 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 [ 230.988231][ T7123] loop2: detected capacity change from 0 to 8192 [pid 5070] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./167/binderfs") = 0 [pid 5070] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./170/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./170/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, [pid 5070] <... umount2 resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] close(4 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5070] lstat("./167/file0", [ 231.038280][ T7123] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7125] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./170/file0" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7121] <... write resumed>) = 4194304 [pid 5073] <... rmdir resumed>) = 0 [pid 5070] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] getdents64(3, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] openat(AT_FDCWD, "./167/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] close(3 [pid 5070] <... openat resumed>) = 4 [pid 5073] <... close resumed>) = 0 [pid 5070] fstat(4, [pid 5073] rmdir("./170") = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] mkdir("./171", 0777 [pid 5070] getdents64(4, [pid 5073] <... mkdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] getdents64(4, [pid 5073] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] close(4 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 231.079319][ T7119] REISERFS (device loop3): checking transaction log (loop3) [ 231.096113][ T7123] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 231.121266][ T7119] REISERFS (device loop3): Using r5 hash to sort names [pid 7125] <... write resumed>) = 4194304 [pid 5070] <... close resumed>) = 0 [pid 7121] munmap(0x7f8a1b2e3000, 4194304 [pid 5073] close(3 [pid 7121] <... munmap resumed>) = 0 [pid 7121] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7121] ioctl(4, LOOP_SET_FD, 3 [pid 7125] munmap(0x7f8a1b2e3000, 4194304 [pid 7119] <... mount resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] rmdir("./167/file0" [pid 7119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7125] <... munmap resumed>) = 0 [pid 7119] <... openat resumed>) = 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... rmdir resumed>) = 0 [pid 7119] chdir("./file0" [pid 7125] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7119] <... chdir resumed>) = 0 [pid 5070] getdents64(3, [pid 7125] <... openat resumed>) = 4 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7127 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [ 231.126400][ T7123] REISERFS (device loop2): using ordered data mode [ 231.128879][ T7119] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.137482][ T7121] loop0: detected capacity change from 0 to 8192 [ 231.147564][ T7119] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 231.169681][ T7123] reiserfs: using flush barriers [pid 7125] ioctl(4, LOOP_SET_FD, 3 [pid 5070] close(3./strace-static-x86_64: Process 7127 attached [pid 7119] ioctl(4, LOOP_CLR_FD [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./167") = 0 [pid 5070] mkdir("./168", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", 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=0x555556cad5d0) = 7128 [pid 7127] chdir("./171" [pid 7119] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 7128 attached [pid 7128] chdir("./168") = 0 [pid 7128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7128] setpgid(0, 0 [pid 7127] <... chdir resumed>) = 0 [pid 7125] <... ioctl resumed>) = 0 [pid 7119] close(4 [pid 7128] <... setpgid resumed>) = 0 [pid 7127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7125] close(3 [pid 7121] <... ioctl resumed>) = 0 [pid 7119] <... close resumed>) = 0 [pid 7128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7127] <... prctl resumed>) = 0 [pid 7125] <... close resumed>) = 0 [pid 7121] close(3 [pid 7119] mkdir(NULL, 000 [pid 7128] <... openat resumed>) = 3 [pid 7127] setpgid(0, 0 [pid 7125] mkdir("./file0", 0777 [pid 7121] <... close resumed>) = 0 [pid 7119] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7128] write(3, "1000", 4 [pid 7127] <... setpgid resumed>) = 0 [pid 7125] <... mkdir resumed>) = 0 [pid 7121] mkdir("./file0", 0777 [pid 7119] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7128] <... write resumed>) = 4 [pid 7127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7125] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7121] <... mkdir resumed>) = 0 [pid 7128] close(3 [pid 7127] <... openat resumed>) = 3 [pid 7121] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7119] <... openat resumed>) = 4 [ 231.173667][ T7125] loop5: detected capacity change from 0 to 8192 [ 231.175899][ T7123] 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 [ 231.198220][ T7123] REISERFS (device loop2): checking transaction log (loop2) [ 231.213578][ T7123] REISERFS (device loop2): Using r5 hash to sort names [pid 7128] <... close resumed>) = 0 [pid 7127] write(3, "1000", 4 [pid 7119] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7127] <... write resumed>) = 4 [pid 7119] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7127] close(3 [pid 7119] mount(NULL, "./bus", NULL, 0, NULL [pid 7127] <... close resumed>) = 0 [pid 7119] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7127] symlink("/dev/binderfs", "./binderfs" [pid 7119] exit_group(0 [pid 7127] <... symlink resumed>) = 0 [pid 7119] <... exit_group resumed>) = ? [pid 7127] memfd_create("syzkaller", 0 [pid 7119] +++ exited with 0 +++ [pid 7127] <... memfd_create resumed>) = 3 [pid 7127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7128] symlink("/dev/binderfs", "./binderfs" [pid 7127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7119, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 7128] <... symlink resumed>) = 0 [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7128] memfd_create("syzkaller", 0 [pid 5072] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7128] <... memfd_create resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7128] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./168/binderfs") = 0 [ 231.237422][ T7123] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.251349][ T7121] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.265339][ T7125] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7127] <... write resumed>) = 4194304 [pid 7127] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7127] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7127] ioctl(4, LOOP_SET_FD, 3 [pid 7128] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7127] <... ioctl resumed>) = 0 [pid 7123] <... mount resumed>) = 0 [pid 7123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7123] chdir("./file0") = 0 [pid 7123] ioctl(4, LOOP_CLR_FD) = 0 [pid 7123] close(4) = 0 [pid 7123] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7123] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7123] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7123] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7123] exit_group(0) = ? [pid 7127] close(3) = 0 [pid 7127] mkdir("./file0", 0777 [pid 7123] +++ exited with 0 +++ [ 231.322060][ T7121] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 231.326883][ T7127] loop4: detected capacity change from 0 to 8192 [ 231.338540][ T7125] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 231.338746][ T7123] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 231.354212][ T7121] REISERFS (device loop0): using ordered data mode [pid 7127] <... mkdir resumed>) = 0 [pid 7127] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7123, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./169", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./169/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./169/binderfs") = 0 [ 231.372755][ T7121] reiserfs: using flush barriers [ 231.374393][ T7125] REISERFS (device loop5): using ordered data mode [ 231.384593][ T7121] 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 [ 231.427387][ T7121] REISERFS (device loop0): checking transaction log (loop0) [ 231.428225][ T7125] reiserfs: using flush barriers [ 231.441174][ T7121] REISERFS (device loop0): Using r5 hash to sort names [ 231.449501][ T7127] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.463533][ T7121] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 7128] <... write resumed>) = 4194304 [pid 7128] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7128] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7128] ioctl(4, LOOP_SET_FD, 3 [pid 5072] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7128] <... ioctl resumed>) = 0 [pid 7128] close(3) = 0 [pid 7128] mkdir("./file0", 0777) = 0 [pid 7128] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./168/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./168/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./168/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./168") = 0 [pid 5072] mkdir("./169", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7133 [ 231.465576][ T7127] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 231.481011][ T7128] loop1: detected capacity change from 0 to 8192 [ 231.487340][ T7125] 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 [ 231.502183][ T7121] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 231.523505][ T7125] REISERFS (device loop5): checking transaction log (loop5) [ 231.532024][ T7128] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.533027][ T7127] REISERFS (device loop4): using ordered data mode [ 231.552609][ T7127] reiserfs: using flush barriers [ 231.558339][ T7125] REISERFS (device loop5): Using r5 hash to sort names ./strace-static-x86_64: Process 7133 attached [pid 7133] chdir("./169") = 0 [pid 7133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7133] setpgid(0, 0) = 0 [pid 7133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7133] write(3, "1000", 4) = 4 [pid 7133] close(3) = 0 [pid 7133] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7133] memfd_create("syzkaller", 0) = 3 [pid 7133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 231.567979][ T7125] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.581466][ T7127] 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 [ 231.599083][ T7125] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 231.617791][ T7127] REISERFS (device loop4): checking transaction log (loop4) [pid 7125] <... mount resumed>) = 0 [pid 7125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7125] chdir("./file0") = 0 [pid 7125] ioctl(4, LOOP_CLR_FD) = 0 [pid 7125] close(4 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./169/file0", [pid 7125] <... close resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7125] mkdir(NULL, 000 [pid 7121] <... mount resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7125] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7125] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7121] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 7125] <... openat resumed>) = 4 [pid 7121] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7133] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(4 [ 231.627469][ T7127] REISERFS (device loop4): Using r5 hash to sort names [ 231.634589][ T7127] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 231.637227][ T7128] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 7125] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7121] chdir("./file0" [pid 7125] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7121] <... chdir resumed>) = 0 [pid 7125] mount(NULL, "./bus", NULL, 0, NULL [pid 7121] ioctl(4, LOOP_CLR_FD [pid 7125] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7121] <... ioctl resumed>) = 0 [pid 7125] exit_group(0 [pid 7121] close(4 [pid 7125] <... exit_group resumed>) = ? [pid 7121] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 7125] +++ exited with 0 +++ [pid 7121] mkdir(NULL, 000 [pid 5071] rmdir("./169/file0" [pid 7121] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7121] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7125, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5071] <... rmdir resumed>) = 0 [pid 7121] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7121] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7121] exit_group(0) = ? [pid 7121] +++ exited with 0 +++ [pid 5074] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7121, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] close(3 [pid 5074] <... openat resumed>) = 3 [pid 5071] <... close resumed>) = 0 [pid 5074] fstat(3, [pid 5071] rmdir("./169" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./165", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] mkdir("./170", 0777 [pid 5069] openat(AT_FDCWD, "./165", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... mkdir resumed>) = 0 [pid 5074] lstat("./173/binderfs", [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... openat resumed>) = 3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5074] unlink("./173/binderfs" [pid 5069] fstat(3, [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] getdents64(3, [pid 5074] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(3 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] <... close resumed>) = 0 [pid 5069] umount2("./165/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./165/binderfs", [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7134 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./165/binderfs") = 0 [pid 7127] <... mount resumed>) = 0 [pid 7127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7127] chdir("./file0") = 0 [pid 7127] ioctl(4, LOOP_CLR_FD) = 0 [pid 5069] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7127] close(4) = 0 ./strace-static-x86_64: Process 7134 attached [pid 7127] mkdir(NULL, 000) = -1 EFAULT (Bad address) [ 231.677837][ T7128] REISERFS (device loop1): using ordered data mode [ 231.688610][ T7128] reiserfs: using flush barriers [ 231.697745][ T7128] 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 [ 231.706993][ T7127] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 7134] chdir("./170" [pid 7127] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7134] <... chdir resumed>) = 0 [pid 7134] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7127] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7134] <... prctl resumed>) = 0 [pid 7134] setpgid(0, 0 [pid 7127] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7134] <... setpgid resumed>) = 0 [pid 7134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7127] mount(NULL, "./bus", NULL, 0, NULL [pid 7134] <... openat resumed>) = 3 [pid 7127] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7134] write(3, "1000", 4 [pid 7127] exit_group(0 [pid 7134] <... write resumed>) = 4 [pid 7127] <... exit_group resumed>) = ? [pid 7134] close(3 [pid 7127] +++ exited with 0 +++ [pid 7134] <... close resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7127, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 7134] symlink("/dev/binderfs", "./binderfs" [pid 7133] <... write resumed>) = 4194304 [pid 7134] <... symlink resumed>) = 0 [pid 7133] munmap(0x7f8a1b2e3000, 4194304 [pid 7134] memfd_create("syzkaller", 0) = 3 [pid 7133] <... munmap resumed>) = 0 [pid 7134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7133] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5073] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7134] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7133] <... openat resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7133] ioctl(4, LOOP_SET_FD, 3 [pid 5073] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, [pid 7133] <... ioctl resumed>) = 0 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7133] close(3) = 0 [pid 5073] getdents64(3, [pid 7133] mkdir("./file0", 0777 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7133] <... mkdir resumed>) = 0 [pid 5073] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7133] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./171/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./171/binderfs") = 0 [ 231.790812][ T7128] REISERFS (device loop1): checking transaction log (loop1) [ 231.817909][ T7133] loop3: detected capacity change from 0 to 8192 [pid 5073] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = 0 [ 231.848517][ T7128] REISERFS (device loop1): Using r5 hash to sort names [ 231.860040][ T7133] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 231.878127][ T7128] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./165/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./165/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./165/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./165/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] <... umount2 resumed>) = 0 [ 231.886344][ T7133] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./173/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7128] <... mount resumed>) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5073] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] close(3 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./173/file0") = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... close resumed>) = 0 [pid 7128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] getdents64(3, [pid 5073] lstat("./171/file0", [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./173") = 0 [pid 7128] <... openat resumed>) = 3 [pid 5074] mkdir("./174", 0777 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] rmdir("./165" [pid 7128] chdir("./file0" [pid 5074] <... mkdir resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 7128] <... chdir resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5073] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... rmdir resumed>) = 0 [pid 7134] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7128] ioctl(4, LOOP_CLR_FD [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./166", 0777 [pid 7128] <... ioctl resumed>) = 0 [ 231.925443][ T7128] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 231.935587][ T7133] REISERFS (device loop3): using ordered data mode [ 231.942857][ T7133] reiserfs: using flush barriers [ 231.950193][ T7133] 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 [ 231.967945][ T7133] REISERFS (device loop3): checking transaction log (loop3) [pid 5074] close(3 [pid 5073] openat(AT_FDCWD, "./171/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... mkdir resumed>) = 0 [pid 7128] close(4 [pid 5074] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 4 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7128] <... close resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] fstat(4, [pid 5069] <... openat resumed>) = 3 [pid 7128] mkdir(NULL, 000 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 7136 attached [pid 7134] <... write resumed>) = 4194304 [pid 7133] <... mount resumed>) = 0 [pid 7128] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7136 [pid 5073] getdents64(4, [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7136] chdir("./174" [pid 7134] munmap(0x7f8a1b2e3000, 4194304 [pid 7133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7128] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7136] <... chdir resumed>) = 0 [pid 7134] <... munmap resumed>) = 0 [pid 7133] <... openat resumed>) = 3 [pid 7128] <... openat resumed>) = 4 [pid 5073] getdents64(4, [pid 5069] close(3 [pid 7136] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7134] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7133] chdir("./file0" [pid 7128] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 7136] <... prctl resumed>) = 0 [pid 7134] <... openat resumed>) = 4 [pid 7133] <... chdir resumed>) = 0 [pid 7128] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7136] setpgid(0, 0 [pid 7134] ioctl(4, LOOP_SET_FD, 3 [pid 7133] ioctl(4, LOOP_CLR_FD [pid 7128] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... close resumed>) = 0 [ 231.977881][ T7133] REISERFS (device loop3): Using r5 hash to sort names [ 231.985004][ T7133] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.005201][ T7133] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 7136] <... setpgid resumed>) = 0 [pid 7128] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] rmdir("./171/file0" [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7137 [pid 7128] exit_group(0 [pid 5073] <... rmdir resumed>) = 0 [pid 7128] <... exit_group resumed>) = ? [pid 5073] getdents64(3, [pid 7128] +++ exited with 0 +++ [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7128, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5073] <... close resumed>) = 0 [pid 5070] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 7137 attached [pid 7136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7134] <... ioctl resumed>) = 0 [pid 7133] <... ioctl resumed>) = 0 [pid 5073] rmdir("./171" [pid 5070] <... restart_syscall resumed>) = 0 [pid 7137] chdir("./166" [pid 7136] <... openat resumed>) = 3 [pid 7134] close(3 [pid 7133] close(4 [pid 5073] <... rmdir resumed>) = 0 [pid 7137] <... chdir resumed>) = 0 [pid 7136] write(3, "1000", 4 [pid 7134] <... close resumed>) = 0 [pid 7133] <... close resumed>) = 0 [pid 5073] mkdir("./172", 0777 [pid 7137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7136] <... write resumed>) = 4 [pid 7134] mkdir("./file0", 0777 [pid 7133] mkdir(NULL, 000 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7136] close(3 [pid 7133] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7134] <... mkdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7137] <... prctl resumed>) = 0 [pid 7136] <... close resumed>) = 0 [pid 7133] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./168", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7136] symlink("/dev/binderfs", "./binderfs" [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 7136] <... symlink resumed>) = 0 [pid 7134] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7133] <... openat resumed>) = 4 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] fstat(3, [pid 7136] memfd_create("syzkaller", 0 [pid 7133] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] close(3 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7136] <... memfd_create resumed>) = 3 [pid 7133] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 7137] setpgid(0, 0 [pid 7136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7133] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7137] <... setpgid resumed>) = 0 [pid 7136] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7133] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7139 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./168/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./168/binderfs") = 0 [pid 5070] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7133] exit_group(0) = ? ./strace-static-x86_64: Process 7139 attached [pid 7137] <... openat resumed>) = 3 [pid 7139] chdir("./172" [pid 7137] write(3, "1000", 4 [pid 7133] +++ exited with 0 +++ [pid 7139] <... chdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7133, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 7137] <... write resumed>) = 4 [pid 7139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7137] close(3 [pid 7139] setpgid(0, 0 [pid 7137] <... close resumed>) = 0 [pid 5072] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7139] <... setpgid resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7137] symlink("/dev/binderfs", "./binderfs" [pid 5072] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7139] <... openat resumed>) = 3 [pid 7137] <... symlink resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 7139] write(3, "1000", 4 [pid 7137] memfd_create("syzkaller", 0 [pid 5072] fstat(3, [pid 7139] <... write resumed>) = 4 [pid 7137] <... memfd_create resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 232.033660][ T7134] loop2: detected capacity change from 0 to 8192 [ 232.069991][ T7134] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7139] close(3 [pid 7137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] getdents64(3, [pid 7139] <... close resumed>) = 0 [pid 7137] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7139] symlink("/dev/binderfs", "./binderfs" [pid 5072] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7139] <... symlink resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7139] memfd_create("syzkaller", 0 [pid 5072] lstat("./169/binderfs", [pid 7139] <... memfd_create resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] unlink("./169/binderfs" [pid 7139] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] <... unlink resumed>) = 0 [pid 5072] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7136] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./168/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./168/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 7139] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./168/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [ 232.157034][ T7134] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5070] close(3 [pid 7136] <... write resumed>) = 4194304 [pid 5070] <... close resumed>) = 0 [pid 7136] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] rmdir("./168" [pid 7136] <... munmap resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 7136] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5070] mkdir("./169", 0777 [pid 7136] <... openat resumed>) = 4 [pid 7137] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7136] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] <... mkdir resumed>) = 0 [ 232.218399][ T7134] REISERFS (device loop2): using ordered data mode [ 232.224961][ T7134] reiserfs: using flush barriers [ 232.235317][ T7134] 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 [ 232.256524][ T7136] loop5: detected capacity change from 0 to 8192 [pid 7136] <... ioctl resumed>) = 0 [pid 5072] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7136] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 3 [pid 5072] lstat("./169/file0", [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7136] <... close resumed>) = 0 [pid 5072] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 7136] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 7136] <... mkdir resumed>) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] fstat(4, [pid 7136] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7140 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 ./strace-static-x86_64: Process 7140 attached [pid 5072] rmdir("./169/file0" [pid 7140] chdir("./169" [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 7140] <... chdir resumed>) = 0 [pid 5072] rmdir("./169" [pid 7140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./170", 0777 [ 232.259509][ T7134] REISERFS (device loop2): checking transaction log (loop2) [pid 7140] <... prctl resumed>) = 0 [pid 7140] setpgid(0, 0) = 0 [pid 7140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7140] write(3, "1000", 4) = 4 [pid 7140] close(3) = 0 [pid 7140] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7140] memfd_create("syzkaller", 0) = 3 [pid 7140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7142 ./strace-static-x86_64: Process 7142 attached [pid 7142] chdir("./170") = 0 [pid 7142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7142] setpgid(0, 0) = 0 [pid 7142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7142] write(3, "1000", 4) = 4 [pid 7142] close(3) = 0 [pid 7142] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7142] memfd_create("syzkaller", 0) = 3 [ 232.298602][ T7136] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.313713][ T7134] REISERFS (device loop2): Using r5 hash to sort names [pid 7142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7139] <... write resumed>) = 4194304 [pid 7142] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7140] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7137] <... write resumed>) = 4194304 [pid 7139] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7139] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [ 232.361435][ T7134] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.365068][ T7136] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 232.400592][ T7139] loop4: detected capacity change from 0 to 8192 [pid 7139] ioctl(4, LOOP_SET_FD, 3 [pid 7142] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7137] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7137] close(3) = 0 [pid 7137] mkdir("./file0", 0777) = 0 [pid 7137] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7139] <... ioctl resumed>) = 0 [pid 7139] close(3) = 0 [pid 7139] mkdir("./file0", 0777) = 0 [ 232.408962][ T7134] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 232.417152][ T7137] loop0: detected capacity change from 0 to 8192 [ 232.445440][ T7136] REISERFS (device loop5): using ordered data mode [pid 7139] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7142] <... write resumed>) = 4194304 [pid 7134] <... mount resumed>) = 0 [pid 7142] munmap(0x7f8a1b2e3000, 4194304 [pid 7134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7142] <... munmap resumed>) = 0 [pid 7140] <... write resumed>) = 4194304 [pid 7134] <... openat resumed>) = 3 [pid 7142] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7140] munmap(0x7f8a1b2e3000, 4194304 [pid 7134] chdir("./file0" [pid 7142] <... openat resumed>) = 4 [pid 7140] <... munmap resumed>) = 0 [pid 7134] <... chdir resumed>) = 0 [ 232.452918][ T7137] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.466111][ T7139] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.481032][ T7136] reiserfs: using flush barriers [ 232.487354][ T7137] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 232.491774][ T7139] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 232.498389][ T7137] REISERFS (device loop0): using ordered data mode [pid 7142] ioctl(4, LOOP_SET_FD, 3 [pid 7140] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 232.507823][ T7136] 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 [ 232.512919][ T7137] reiserfs: using flush barriers [ 232.530862][ T7139] REISERFS (device loop4): using ordered data mode [ 232.533854][ T7142] loop3: detected capacity change from 0 to 8192 [ 232.542219][ T7139] reiserfs: using flush barriers [pid 7134] ioctl(4, LOOP_CLR_FD [pid 7140] <... openat resumed>) = 4 [pid 7134] <... ioctl resumed>) = 0 [pid 7140] ioctl(4, LOOP_SET_FD, 3 [pid 7134] close(4) = 0 [pid 7134] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7134] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7134] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7134] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7134] exit_group(0) = ? [pid 7134] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7134, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 232.547701][ T7137] 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 [ 232.558633][ T7136] REISERFS (device loop5): checking transaction log (loop5) [ 232.567777][ T7137] REISERFS (device loop0): checking transaction log (loop0) [ 232.582481][ T7139] 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 [ 232.597928][ T7140] loop1: detected capacity change from 0 to 8192 [ 232.601374][ T7139] REISERFS (device loop4): checking transaction log (loop4) [pid 7140] <... ioctl resumed>) = 0 [pid 5071] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7140] close(3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7140] <... close resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7140] mkdir("./file0", 0777 [pid 5071] <... openat resumed>) = 3 [pid 7142] <... ioctl resumed>) = 0 [pid 7140] <... mkdir resumed>) = 0 [pid 5071] fstat(3, [pid 7142] close(3 [pid 7140] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7142] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 7142] mkdir("./file0", 0777 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7142] <... mkdir resumed>) = 0 [pid 5071] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7142] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./170/binderfs") = 0 [ 232.613825][ T7137] REISERFS (device loop0): Using r5 hash to sort names [ 232.621191][ T7139] REISERFS (device loop4): Using r5 hash to sort names [ 232.628525][ T7137] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.641996][ T7139] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.655390][ T7137] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 232.658624][ T7140] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.665254][ T7139] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 232.678813][ T7142] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 232.688353][ T7136] REISERFS (device loop5): Using r5 hash to sort names [pid 5071] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7139] <... mount resumed>) = 0 [pid 7137] <... mount resumed>) = 0 [pid 7139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7139] <... openat resumed>) = 3 [pid 7137] <... openat resumed>) = 3 [pid 7136] <... mount resumed>) = 0 [pid 7139] chdir("./file0" [pid 7137] chdir("./file0" [pid 7136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7139] <... chdir resumed>) = 0 [pid 7137] <... chdir resumed>) = 0 [pid 7139] ioctl(4, LOOP_CLR_FD [pid 7137] ioctl(4, LOOP_CLR_FD [pid 7136] <... openat resumed>) = 3 [pid 7139] <... ioctl resumed>) = 0 [pid 7137] <... ioctl resumed>) = 0 [pid 7139] close(4 [pid 7136] chdir("./file0" [pid 7137] close(4 [pid 7139] <... close resumed>) = 0 [pid 7136] <... chdir resumed>) = 0 [pid 7139] mkdir(NULL, 000 [pid 7137] <... close resumed>) = 0 [pid 7136] ioctl(4, LOOP_CLR_FD [pid 7139] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7137] mkdir(NULL, 000 [pid 7139] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7136] <... ioctl resumed>) = 0 [pid 7137] <... mkdir resumed>) = -1 EFAULT (Bad address) [ 232.706925][ T7136] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.719871][ T7136] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 232.727061][ T7140] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 232.729701][ T7142] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 232.747591][ T7142] REISERFS (device loop3): using ordered data mode [ 232.754117][ T7142] reiserfs: using flush barriers [pid 7139] <... openat resumed>) = 4 [pid 7137] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7136] close(4 [pid 7139] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7137] <... openat resumed>) = 4 [pid 7136] <... close resumed>) = 0 [pid 7139] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7137] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7136] mkdir(NULL, 000 [pid 7139] mount(NULL, "./bus", NULL, 0, NULL [pid 7137] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7139] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7137] mount(NULL, "./bus", NULL, 0, NULL [pid 7136] <... mkdir resumed>) = -1 EFAULT (Bad address) [ 232.762339][ T7140] REISERFS (device loop1): using ordered data mode [ 232.769814][ T7140] reiserfs: using flush barriers [ 232.788018][ T7140] 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] <... umount2 resumed>) = 0 [pid 7139] exit_group(0 [pid 7137] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7136] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7139] <... exit_group resumed>) = ? [pid 7137] exit_group(0 [pid 7136] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7139] +++ exited with 0 +++ [pid 7137] <... exit_group resumed>) = ? [pid 7136] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] lstat("./170/file0", [pid 7137] +++ exited with 0 +++ [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7136] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7139, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5071] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7137, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 7136] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7136] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7136] exit_group(0 [pid 5073] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5069] umount2("./166", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7136] <... exit_group resumed>) = ? [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7136] +++ exited with 0 +++ [pid 5073] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] openat(AT_FDCWD, "./166", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7136, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5073] <... openat resumed>) = 3 [pid 5071] getdents64(4, [pid 5069] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] fstat(3, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 232.803344][ T7142] 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 [ 232.821536][ T7142] REISERFS (device loop3): checking transaction log (loop3) [ 232.829776][ T7140] REISERFS (device loop1): checking transaction log (loop1) [ 232.854639][ T7140] REISERFS (device loop1): Using r5 hash to sort names [pid 5073] getdents64(3, [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] getdents64(3, [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] close(4 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5069] umount2("./166/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./170/file0" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] lstat("./172/binderfs", [pid 5071] <... rmdir resumed>) = 0 [pid 5069] lstat("./166/binderfs", [pid 5074] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] getdents64(3, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] fstat(3, [pid 5073] unlink("./172/binderfs" [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] unlink("./166/binderfs" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... unlink resumed>) = 0 [pid 5071] close(3 [pid 5069] <... unlink resumed>) = 0 [pid 5074] getdents64(3, [pid 5073] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5069] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] rmdir("./170" [pid 5074] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] mkdir("./171", 0777 [pid 5074] lstat("./174/binderfs", [pid 5071] <... mkdir resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] unlink("./174/binderfs" [pid 5071] <... openat resumed>) = 3 [pid 5074] <... unlink resumed>) = 0 [ 232.861893][ T7142] REISERFS (device loop3): Using r5 hash to sort names [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5074] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [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=0x555556cad5d0) = 7147 ./strace-static-x86_64: Process 7147 attached [pid 7147] chdir("./171") = 0 [pid 7147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7147] setpgid(0, 0) = 0 [pid 7147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7147] write(3, "1000", 4) = 4 [pid 7147] close(3) = 0 [pid 7147] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7147] memfd_create("syzkaller", 0) = 3 [pid 7147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./172/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./172/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [ 232.899787][ T7142] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 232.914359][ T7140] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] rmdir("./172/file0") = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./172") = 0 [pid 5073] mkdir("./173", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [pid 5069] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] lstat("./166/file0", [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7148 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./166/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./166/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 7148 attached ) = 4 [pid 7148] chdir("./173" [pid 5069] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7148] <... chdir resumed>) = 0 [pid 5069] getdents64(4, [pid 7148] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7148] <... prctl resumed>) = 0 [pid 5069] getdents64(4, [pid 7148] setpgid(0, 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7148] <... setpgid resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [ 232.988743][ T7140] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 233.001507][ T7142] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] close(4 [pid 7148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7142] <... mount resumed>) = 0 [pid 7140] <... mount resumed>) = 0 [pid 5074] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 7148] <... openat resumed>) = 3 [pid 7142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./166/file0" [pid 7148] write(3, "1000", 4 [pid 7142] <... openat resumed>) = 3 [pid 7140] <... openat resumed>) = 3 [pid 5074] lstat("./174/file0", [pid 5069] <... rmdir resumed>) = 0 [pid 7148] <... write resumed>) = 4 [pid 7142] chdir("./file0" [pid 7140] chdir("./file0" [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 7148] close(3 [pid 7142] <... chdir resumed>) = 0 [pid 7140] <... chdir resumed>) = 0 [pid 5074] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7148] <... close resumed>) = 0 [pid 7147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7142] ioctl(4, LOOP_CLR_FD [pid 7140] ioctl(4, LOOP_CLR_FD [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(3 [pid 7148] symlink("/dev/binderfs", "./binderfs" [pid 7142] <... ioctl resumed>) = 0 [pid 7140] <... ioctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 7148] <... symlink resumed>) = 0 [pid 7142] close(4 [pid 7140] close(4 [pid 5074] <... openat resumed>) = 4 [pid 5069] rmdir("./166" [pid 7148] memfd_create("syzkaller", 0 [pid 7142] <... close resumed>) = 0 [pid 7140] <... close resumed>) = 0 [pid 5074] fstat(4, [pid 5069] <... rmdir resumed>) = 0 [pid 7148] <... memfd_create resumed>) = 3 [pid 7142] mkdir(NULL, 000 [pid 7140] mkdir(NULL, 000 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] mkdir("./167", 0777 [pid 7148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7142] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7140] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] getdents64(4, [pid 5069] <... mkdir resumed>) = 0 [pid 7148] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7142] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7140] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7142] <... openat resumed>) = 4 [pid 7140] <... openat resumed>) = 4 [pid 5074] getdents64(4, [pid 5069] <... openat resumed>) = 3 [pid 7142] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7140] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7142] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7140] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] close(4 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7142] mount(NULL, "./bus", NULL, 0, NULL [pid 7140] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... close resumed>) = 0 [pid 5069] close(3 [pid 7142] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7140] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] rmdir("./174/file0" [pid 5069] <... close resumed>) = 0 [pid 7142] exit_group(0 [pid 7140] exit_group(0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7142] <... exit_group resumed>) = ? [pid 7140] <... exit_group resumed>) = ? [pid 5074] <... rmdir resumed>) = 0 [pid 7142] +++ exited with 0 +++ [pid 7140] +++ exited with 0 +++ [pid 5074] getdents64(3, [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7149 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7140, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5074] close(3 [pid 5072] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 7149 attached [pid 5074] <... close resumed>) = 0 [pid 5072] <... restart_syscall resumed>) = 0 [pid 5074] rmdir("./174" [pid 7149] chdir("./167" [pid 5074] <... rmdir resumed>) = 0 [pid 7149] <... chdir resumed>) = 0 [pid 5074] mkdir("./175", 0777 [pid 5072] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7149] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5074] <... mkdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7149] <... prctl resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7149] setpgid(0, 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7149] <... setpgid resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5072] fstat(3, [pid 5070] <... openat resumed>) = 3 [pid 7147] <... write resumed>) = 4194304 [pid 7149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] fstat(3, [pid 7149] <... openat resumed>) = 3 [pid 7147] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] close(3 [pid 5072] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7149] write(3, "1000", 4 [pid 7147] <... munmap resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, [pid 7149] <... write resumed>) = 4 [pid 7147] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7149] close(3 [pid 7147] <... openat resumed>) = 4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7149] <... close resumed>) = 0 [pid 7147] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7150 [pid 5072] lstat("./170/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7149] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] lstat("./169/binderfs", [pid 5072] unlink("./170/binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] unlink("./169/binderfs" [pid 5072] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 ./strace-static-x86_64: Process 7150 attached [pid 7149] <... symlink resumed>) = 0 [pid 5070] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7150] chdir("./175" [pid 7149] memfd_create("syzkaller", 0 [pid 7150] <... chdir resumed>) = 0 [pid 7149] <... memfd_create resumed>) = 3 [pid 7150] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7150] <... prctl resumed>) = 0 [pid 7150] setpgid(0, 0 [pid 7149] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7150] <... setpgid resumed>) = 0 [pid 7150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7150] write(3, "1000", 4 [pid 7148] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7150] <... write resumed>) = 4 [pid 7150] close(3) = 0 [pid 7150] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7150] memfd_create("syzkaller", 0) = 3 [pid 7150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7147] <... ioctl resumed>) = 0 [pid 7147] close(3) = 0 [pid 7147] mkdir("./file0", 0777) = 0 [ 233.152121][ T7147] loop2: detected capacity change from 0 to 8192 [ 233.205343][ T7147] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7147] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7149] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./169/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./169/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./169/file0" [pid 5072] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(3, [pid 5072] lstat("./170/file0", [ 233.281315][ T7147] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] close(3 [pid 7149] <... write resumed>) = 4194304 [pid 5072] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [pid 7149] munmap(0x7f8a1b2e3000, 4194304 [pid 7148] <... write resumed>) = 4194304 [pid 5072] openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7148] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] <... openat resumed>) = 4 [pid 7149] <... munmap resumed>) = 0 [pid 7148] <... munmap resumed>) = 0 [pid 5072] fstat(4, [pid 5070] rmdir("./169" [pid 7148] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7148] <... openat resumed>) = 4 [pid 5072] getdents64(4, [pid 7148] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7149] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] getdents64(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./170/file0") = 0 [ 233.343926][ T7147] REISERFS (device loop2): using ordered data mode [ 233.350872][ T7147] reiserfs: using flush barriers [ 233.357908][ T7147] 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 [ 233.364020][ T7148] loop4: detected capacity change from 0 to 8192 [ 233.375287][ T7147] REISERFS (device loop2): checking transaction log (loop2) [pid 7149] <... openat resumed>) = 4 [pid 5072] getdents64(3, [pid 5070] mkdir("./170", 0777 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./170") = 0 [pid 5072] mkdir("./171", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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 7149] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... mkdir resumed>) = 0 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7152 ./strace-static-x86_64: Process 7152 attached [pid 7152] chdir("./171") = 0 [pid 7152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7152] setpgid(0, 0) = 0 [pid 7152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7152] write(3, "1000", 4) = 4 [pid 7152] close(3) = 0 [pid 7152] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7152] memfd_create("syzkaller", 0) = 3 [pid 7152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7149] <... ioctl resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7150] <... write resumed>) = 4194304 [pid 7149] close(3 [pid 7148] <... ioctl resumed>) = 0 [pid 7149] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 7149] mkdir("./file0", 0777 [pid 7148] close(3 [pid 7147] <... mount resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7150] munmap(0x7f8a1b2e3000, 4194304 [pid 7149] <... mkdir resumed>) = 0 [pid 7147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7148] <... close resumed>) = 0 [pid 7149] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7147] <... openat resumed>) = 3 [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7153 [pid 7148] mkdir("./file0", 0777) = 0 [pid 7148] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 7153 attached [pid 7153] chdir("./170") = 0 [pid 7153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7147] chdir("./file0" [pid 7153] setpgid(0, 0) = 0 [pid 7147] <... chdir resumed>) = 0 [ 233.389446][ T7147] REISERFS (device loop2): Using r5 hash to sort names [ 233.396688][ T7147] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.416541][ T7149] loop0: detected capacity change from 0 to 8192 [ 233.432675][ T7147] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 7153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7147] ioctl(4, LOOP_CLR_FD [pid 7153] <... openat resumed>) = 3 [pid 7153] write(3, "1000", 4) = 4 [pid 7153] close(3) = 0 [pid 7153] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7153] memfd_create("syzkaller", 0) = 3 [pid 7153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7150] <... munmap resumed>) = 0 [pid 7147] <... ioctl resumed>) = 0 [pid 7150] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7147] close(4 [pid 7150] <... openat resumed>) = 4 [pid 7147] <... close resumed>) = 0 [pid 7147] mkdir(NULL, 000 [pid 7150] ioctl(4, LOOP_SET_FD, 3 [pid 7147] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7147] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 233.464998][ T7149] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.490710][ T7148] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.492426][ T7150] loop5: detected capacity change from 0 to 8192 [pid 7147] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7147] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7147] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [ 233.512421][ T7149] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 233.517900][ T7148] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 233.532824][ T7148] REISERFS (device loop4): using ordered data mode [ 233.539976][ T7148] reiserfs: using flush barriers [ 233.546922][ T7149] REISERFS (device loop0): using ordered data mode [pid 7147] exit_group(0 [pid 7152] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7147] <... exit_group resumed>) = ? [pid 7147] +++ exited with 0 +++ [ 233.547052][ T7148] 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 [ 233.553440][ T7149] reiserfs: using flush barriers [ 233.576106][ T7148] REISERFS (device loop4): checking transaction log (loop4) [ 233.587064][ T7148] REISERFS (device loop4): Using r5 hash to sort names [ 233.594700][ T7148] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7147, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5071] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./171", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7150] <... ioctl resumed>) = 0 [pid 7148] <... mount resumed>) = 0 [pid 5071] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7150] close(3 [pid 7148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7150] <... close resumed>) = 0 [pid 7148] <... openat resumed>) = 3 [pid 5071] lstat("./171/binderfs", [pid 7153] <... write resumed>) = 4194304 [pid 7150] mkdir("./file0", 0777 [pid 7148] chdir("./file0" [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7153] munmap(0x7f8a1b2e3000, 4194304 [pid 7150] <... mkdir resumed>) = 0 [pid 7148] <... chdir resumed>) = 0 [pid 5071] unlink("./171/binderfs" [pid 7153] <... munmap resumed>) = 0 [pid 7150] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7148] ioctl(4, LOOP_CLR_FD [pid 5071] <... unlink resumed>) = 0 [pid 7153] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7148] <... ioctl resumed>) = 0 [pid 5071] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7153] <... openat resumed>) = 4 [pid 7148] close(4 [pid 7153] ioctl(4, LOOP_SET_FD, 3 [pid 7148] <... close resumed>) = 0 [ 233.599305][ T7149] 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 [ 233.607531][ T7148] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [pid 7148] mkdir(NULL, 000 [pid 7152] <... write resumed>) = 4194304 [pid 7148] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7148] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7152] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7152] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7152] ioctl(4, LOOP_SET_FD, 3 [pid 7153] <... ioctl resumed>) = 0 [pid 7148] <... openat resumed>) = 4 [ 233.668839][ T7153] loop1: detected capacity change from 0 to 8192 [ 233.676038][ T7150] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.698582][ T7149] REISERFS (device loop0): checking transaction log (loop0) [ 233.699332][ T7152] loop3: detected capacity change from 0 to 8192 [ 233.709398][ T7149] REISERFS (device loop0): Using r5 hash to sort names [pid 7153] close(3 [pid 7148] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7153] <... close resumed>) = 0 [pid 7148] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7153] mkdir("./file0", 0777 [pid 7148] mount(NULL, "./bus", NULL, 0, NULL [pid 7153] <... mkdir resumed>) = 0 [pid 7148] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7148] exit_group(0 [pid 7153] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7148] <... exit_group resumed>) = ? [pid 7152] <... ioctl resumed>) = 0 [pid 7148] +++ exited with 0 +++ [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7148, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 7152] close(3) = 0 [pid 5073] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./173", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./173/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 233.713332][ T7150] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 233.722145][ T7149] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.745283][ T7149] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] unlink("./173/binderfs" [pid 7152] mkdir("./file0", 0777 [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7152] <... mkdir resumed>) = 0 [pid 7152] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7149] <... mount resumed>) = 0 [pid 7149] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7149] chdir("./file0") = 0 [pid 7149] ioctl(4, LOOP_CLR_FD) = 0 [pid 7149] close(4) = 0 [pid 7149] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7149] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7149] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7149] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7149] exit_group(0) = ? [pid 7149] +++ exited with 0 +++ [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 233.763845][ T7150] REISERFS (device loop5): using ordered data mode [ 233.772979][ T7150] reiserfs: using flush barriers [ 233.779435][ T7152] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.796507][ T7150] 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 5071] openat(AT_FDCWD, "./171/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./171/file0") = 0 [pid 5071] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7149, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./171" [pid 5069] umount2("./167", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./167", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./167/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./167/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./167/binderfs") = 0 [pid 5069] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5071] mkdir("./172", 0777) = 0 [pid 5071] 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) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7159 [ 233.798848][ T7153] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 233.845652][ T7150] REISERFS (device loop5): checking transaction log (loop5) [ 233.853314][ T7152] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 233.861318][ T7150] REISERFS (device loop5): Using r5 hash to sort names ./strace-static-x86_64: Process 7159 attached [pid 7159] chdir("./172") = 0 [ 233.862890][ T7152] REISERFS (device loop3): using ordered data mode [ 233.876026][ T7152] reiserfs: using flush barriers [ 233.882347][ T7153] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 233.891648][ T7152] 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 [ 233.910411][ T7153] REISERFS (device loop1): using ordered data mode [pid 7159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7159] setpgid(0, 0) = 0 [pid 7159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7159] write(3, "1000", 4) = 4 [pid 7159] close(3) = 0 [pid 7159] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7159] memfd_create("syzkaller", 0) = 3 [pid 7159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 233.917436][ T7152] REISERFS (device loop3): checking transaction log (loop3) [ 233.924953][ T7153] reiserfs: using flush barriers [ 233.931302][ T7152] REISERFS (device loop3): Using r5 hash to sort names [ 233.942158][ T7153] 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 [ 233.957461][ T7150] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.958917][ T7152] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 233.999184][ T7153] REISERFS (device loop1): checking transaction log (loop1) [pid 7159] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./173/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./173/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./173/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./173") = 0 [pid 5073] mkdir("./174", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 234.020843][ T7153] REISERFS (device loop1): Using r5 hash to sort names [ 234.034142][ T7150] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 234.034832][ T7152] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] close(3) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7160 ./strace-static-x86_64: Process 7160 attached [pid 7160] chdir("./174" [pid 7150] <... mount resumed>) = 0 [pid 7150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5069] <... umount2 resumed>) = 0 [pid 7150] chdir("./file0") = 0 [pid 7150] ioctl(4, LOOP_CLR_FD) = 0 [pid 7150] close(4 [pid 7160] <... chdir resumed>) = 0 [pid 7152] <... mount resumed>) = 0 [pid 7150] <... close resumed>) = 0 [pid 7160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7160] <... prctl resumed>) = 0 [pid 7152] <... openat resumed>) = 3 [pid 7160] setpgid(0, 0) = 0 [pid 7152] chdir("./file0" [pid 7150] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7152] <... chdir resumed>) = 0 [pid 7150] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7160] <... openat resumed>) = 3 [pid 7152] ioctl(4, LOOP_CLR_FD [pid 7150] <... openat resumed>) = 4 [pid 7150] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7160] write(3, "1000", 4) = 4 [pid 7152] <... ioctl resumed>) = 0 [pid 7150] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7160] close(3 [pid 7152] close(4 [pid 7150] mount(NULL, "./bus", NULL, 0, NULL [pid 7160] <... close resumed>) = 0 [pid 7152] <... close resumed>) = 0 [pid 7150] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7160] symlink("/dev/binderfs", "./binderfs" [pid 7150] exit_group(0 [pid 7160] <... symlink resumed>) = 0 [pid 7159] <... write resumed>) = 4194304 [pid 7153] <... mount resumed>) = 0 [pid 7152] mkdir(NULL, 000 [pid 7150] <... exit_group resumed>) = ? [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7160] memfd_create("syzkaller", 0 [pid 7159] munmap(0x7f8a1b2e3000, 4194304 [pid 7153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7152] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7150] +++ exited with 0 +++ [pid 5069] lstat("./167/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./167/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./167/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./167/file0" [pid 7152] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 7152] <... openat resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7150, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5069] <... close resumed>) = 0 [pid 7160] <... memfd_create resumed>) = 3 [pid 7153] <... openat resumed>) = 3 [pid 5074] restart_syscall(<... resuming interrupted clone ...> [ 234.076448][ T7153] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.099610][ T7153] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] rmdir("./167" [pid 7160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7159] <... munmap resumed>) = 0 [pid 7153] chdir("./file0" [pid 7152] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 7160] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7152] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7153] <... chdir resumed>) = 0 [pid 7159] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] mkdir("./168", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", 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 7159] <... openat resumed>) = 4 [pid 7153] ioctl(4, LOOP_CLR_FD [pid 7152] mount(NULL, "./bus", NULL, 0, NULL [pid 7159] ioctl(4, LOOP_SET_FD, 3 [pid 7153] <... ioctl resumed>) = 0 [pid 7152] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7161 [pid 7153] close(4 [pid 7152] exit_group(0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7153] <... close resumed>) = 0 [pid 7152] <... exit_group resumed>) = ? [pid 5074] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7153] mkdir(NULL, 000./strace-static-x86_64: Process 7161 attached [pid 7161] chdir("./168" [pid 7152] +++ exited with 0 +++ [pid 7161] <... chdir resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7152, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] fstat(3, [pid 7153] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7161] setpgid(0, 0) = 0 [pid 7161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7161] write(3, "1000", 4) = 4 [pid 7161] close(3) = 0 [pid 7161] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7153] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] getdents64(3, [pid 7161] memfd_create("syzkaller", 0) = 3 [pid 7161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7153] <... openat resumed>) = 4 [pid 5072] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7153] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7161] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7153] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7153] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7153] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] lstat("./175/binderfs", [pid 5072] <... openat resumed>) = 3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] unlink("./175/binderfs" [pid 7153] exit_group(0 [pid 5072] getdents64(3, [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7153] <... exit_group resumed>) = ? [pid 5072] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7153] +++ exited with 0 +++ [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7153, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=12 /* 0.12 s */} --- [pid 5072] lstat("./171/binderfs", [pid 5070] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] unlink("./171/binderfs" [pid 5070] openat(AT_FDCWD, "./170", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5072] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./170/binderfs") = 0 [pid 5070] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7159] <... ioctl resumed>) = 0 [pid 7159] close(3) = 0 [pid 7159] mkdir("./file0", 0777) = 0 [ 234.150737][ T7159] loop2: detected capacity change from 0 to 8192 [pid 7159] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7161] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./171/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./171/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./171") = 0 [pid 5072] mkdir("./172", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 234.229055][ T7159] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] close(3) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7163 ./strace-static-x86_64: Process 7163 attached [pid 7163] chdir("./172") = 0 [pid 7163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7163] setpgid(0, 0) = 0 [pid 7163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7163] write(3, "1000", 4) = 4 [pid 7163] close(3) = 0 [pid 7163] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7163] memfd_create("syzkaller", 0) = 3 [pid 7163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 234.274369][ T7159] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./170/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./170/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./170/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./170") = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5070] mkdir("./171", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3) = 0 [ 234.324516][ T7159] REISERFS (device loop2): using ordered data mode [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7164 [pid 5074] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./175/file0", ./strace-static-x86_64: Process 7164 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7164] chdir("./171" [pid 5074] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7164] <... chdir resumed>) = 0 [pid 7164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7164] setpgid(0, 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7164] <... setpgid resumed>) = 0 [pid 7164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5074] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7164] write(3, "1000", 4) = 4 [pid 5074] <... openat resumed>) = 4 [pid 7164] close(3 [pid 5074] fstat(4, [pid 7164] <... close resumed>) = 0 [pid 7164] symlink("/dev/binderfs", "./binderfs") = 0 [ 234.369611][ T7159] reiserfs: using flush barriers [pid 7164] memfd_create("syzkaller", 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7164] <... memfd_create resumed>) = 3 [pid 7163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7161] <... write resumed>) = 4194304 [pid 7160] <... write resumed>) = 4194304 [pid 5074] getdents64(4, [pid 7164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7161] munmap(0x7f8a1b2e3000, 4194304 [pid 7160] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [ 234.393446][ T7159] 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 [ 234.417409][ T7159] REISERFS (device loop2): checking transaction log (loop2) [ 234.427436][ T7159] REISERFS (device loop2): Using r5 hash to sort names [pid 7161] <... munmap resumed>) = 0 [pid 7160] <... munmap resumed>) = 0 [pid 5074] getdents64(4, [pid 7161] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7160] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7161] <... openat resumed>) = 4 [pid 7160] <... openat resumed>) = 4 [pid 7161] ioctl(4, LOOP_SET_FD, 3 [pid 5074] close(4 [pid 7160] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./175/file0" [pid 7163] <... write resumed>) = 4194304 [pid 7161] <... ioctl resumed>) = 0 [pid 7160] <... ioctl resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 7161] close(3 [pid 7160] close(3 [pid 7163] munmap(0x7f8a1b2e3000, 4194304 [pid 7161] <... close resumed>) = 0 [pid 5074] getdents64(3, [pid 7161] mkdir("./file0", 0777 [pid 7160] <... close resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7161] <... mkdir resumed>) = 0 [pid 7160] mkdir("./file0", 0777 [pid 5074] close(3 [pid 7160] <... mkdir resumed>) = 0 [pid 7161] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7160] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./175") = 0 [pid 5074] mkdir("./176", 0777 [pid 7163] <... munmap resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [ 234.447887][ T7159] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.469831][ T7161] loop0: detected capacity change from 0 to 8192 [ 234.477246][ T7160] loop4: detected capacity change from 0 to 8192 [ 234.480937][ T7159] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 7163] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7159] <... mount resumed>) = 0 [pid 7159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7159] chdir("./file0") = 0 [pid 7159] ioctl(4, LOOP_CLR_FD) = 0 [pid 7159] close(4) = 0 [pid 7159] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7159] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7159] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7164] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7163] <... openat resumed>) = 4 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 7163] ioctl(4, LOOP_SET_FD, 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7167 attached , child_tidptr=0x555556cad5d0) = 7167 [pid 7159] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7159] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7159] exit_group(0) = ? [pid 7159] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7159, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=9 /* 0.09 s */} --- [pid 7167] chdir("./176") = 0 [pid 5071] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 234.509166][ T7161] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.523242][ T7160] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.529585][ T7163] loop3: detected capacity change from 0 to 8192 [ 234.536466][ T7160] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5071] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] getdents64(3, [pid 7167] <... prctl resumed>) = 0 [pid 7167] setpgid(0, 0) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7167] write(3, "1000", 4) = 4 [pid 7167] close(3) = 0 [pid 7167] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7167] memfd_create("syzkaller", 0) = 3 [pid 7167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 234.553348][ T7161] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 234.562770][ T7160] REISERFS (device loop4): using ordered data mode [ 234.570627][ T7160] reiserfs: using flush barriers [ 234.577570][ T7160] 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 5071] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7164] <... write resumed>) = 4194304 [pid 7163] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./172/binderfs") = 0 [pid 5071] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7167] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7164] munmap(0x7f8a1b2e3000, 4194304 [pid 7163] close(3 [pid 7164] <... munmap resumed>) = 0 [pid 7163] <... close resumed>) = 0 [ 234.606469][ T7161] REISERFS (device loop0): using ordered data mode [ 234.613128][ T7161] reiserfs: using flush barriers [ 234.619310][ T7160] REISERFS (device loop4): checking transaction log (loop4) [ 234.634522][ T7160] REISERFS (device loop4): Using r5 hash to sort names [ 234.642120][ T7160] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7164] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7163] mkdir("./file0", 0777 [pid 7160] <... mount resumed>) = 0 [pid 7164] <... openat resumed>) = 4 [pid 7163] <... mkdir resumed>) = 0 [pid 7160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7164] ioctl(4, LOOP_SET_FD, 3 [pid 7163] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7160] <... openat resumed>) = 3 [pid 7160] chdir("./file0") = 0 [pid 7160] ioctl(4, LOOP_CLR_FD) = 0 [pid 7160] close(4) = 0 [pid 7160] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7160] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7160] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7164] <... ioctl resumed>) = 0 [pid 7160] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7164] close(3 [pid 7160] mount(NULL, "./bus", NULL, 0, NULL [pid 7164] <... close resumed>) = 0 [pid 7160] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7160] exit_group(0 [pid 7164] mkdir("./file0", 0777 [pid 7160] <... exit_group resumed>) = ? [pid 7160] +++ exited with 0 +++ [pid 7164] <... mkdir resumed>) = 0 [ 234.655741][ T7160] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 234.658978][ T7161] 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 [ 234.684177][ T7164] loop1: detected capacity change from 0 to 8192 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7160, 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("./174", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, [pid 7164] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./174/binderfs") = 0 [ 234.716126][ T7163] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.737547][ T7161] REISERFS (device loop0): checking transaction log (loop0) [ 234.745921][ T7161] REISERFS (device loop0): Using r5 hash to sort names [pid 5073] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7167] <... write resumed>) = 4194304 [pid 7167] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7167] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 234.753900][ T7164] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.764883][ T7163] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 234.767190][ T7164] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 234.785731][ T7164] REISERFS (device loop1): using ordered data mode [ 234.792879][ T7164] reiserfs: using flush barriers [ 234.799127][ T7163] REISERFS (device loop3): using ordered data mode [pid 7167] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 7167] close(3 [pid 5071] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7167] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7167] mkdir("./file0", 0777) = 0 [pid 7167] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 234.805868][ T7164] 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 [ 234.809532][ T7167] loop5: detected capacity change from 0 to 8192 [ 234.822451][ T7164] REISERFS (device loop1): checking transaction log (loop1) [ 234.830107][ T7161] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.837585][ T7163] reiserfs: using flush barriers [ 234.851212][ T7161] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] lstat("./172/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7161] <... mount resumed>) = 0 [pid 7161] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7161] chdir("./file0") = 0 [pid 7161] ioctl(4, LOOP_CLR_FD) = 0 [pid 7161] close(4) = 0 [pid 7161] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7161] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7161] <... openat resumed>) = 4 [pid 7161] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [ 234.871301][ T7164] REISERFS (device loop1): Using r5 hash to sort names [ 234.875566][ T7163] 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 [ 234.888708][ T7164] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7161] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7161] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] getdents64(4, [pid 7161] exit_group(0 [pid 5073] <... umount2 resumed>) = 0 [pid 7161] <... exit_group resumed>) = ? [pid 7161] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7161, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./168", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./168", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./168/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7164] <... mount resumed>) = 0 [pid 5073] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./168/binderfs", [pid 7164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7164] <... openat resumed>) = 3 [pid 5073] lstat("./174/file0", [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] unlink("./168/binderfs" [pid 7164] chdir("./file0" [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] close(4 [pid 5069] <... unlink resumed>) = 0 [pid 7164] <... chdir resumed>) = 0 [pid 5073] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5069] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7164] ioctl(4, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./172/file0" [pid 7164] <... ioctl resumed>) = 0 [ 234.917214][ T7167] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 234.937876][ T7164] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 234.953843][ T7163] REISERFS (device loop3): checking transaction log (loop3) [ 234.961607][ T7167] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5073] openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... rmdir resumed>) = 0 [pid 7164] close(4 [pid 5073] <... openat resumed>) = 4 [pid 5071] getdents64(3, [pid 7164] <... close resumed>) = 0 [pid 5073] fstat(4, [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7164] mkdir(NULL, 000 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 234.971183][ T7167] REISERFS (device loop5): using ordered data mode [ 234.978383][ T7167] reiserfs: using flush barriers [ 234.983409][ T7163] REISERFS (device loop3): Using r5 hash to sort names [ 234.990705][ T7163] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 234.993142][ T7167] 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 5071] close(3 [pid 7164] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] getdents64(4, [pid 5071] <... close resumed>) = 0 [pid 7164] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] rmdir("./172" [pid 7164] <... openat resumed>) = 4 [pid 7163] <... mount resumed>) = 0 [pid 5073] getdents64(4, [pid 5071] <... rmdir resumed>) = 0 [pid 7164] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] mkdir("./173", 0777 [pid 7164] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(4 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7164] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... close resumed>) = 0 [ 235.003841][ T7163] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 235.029575][ T7167] REISERFS (device loop5): checking transaction log (loop5) [ 235.047060][ T7167] REISERFS (device loop5): Using r5 hash to sort names [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7164] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] rmdir("./174/file0" [pid 5071] <... openat resumed>) = 3 [pid 7164] exit_group(0 [pid 7163] <... openat resumed>) = 3 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7164] <... exit_group resumed>) = ? [pid 5073] getdents64(3, [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7164] +++ exited with 0 +++ [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 7167] <... mount resumed>) = 0 [pid 7163] chdir("./file0" [pid 5073] close(3 [pid 5071] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... close resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7164, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5069] lstat("./168/file0", [pid 7167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7163] <... chdir resumed>) = 0 [pid 5073] rmdir("./174" [pid 5070] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 7171 attached [pid 7167] <... openat resumed>) = 3 [pid 7163] ioctl(4, LOOP_CLR_FD [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7171 [pid 5070] <... restart_syscall resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7171] chdir("./173" [pid 7167] chdir("./file0" [pid 7163] <... ioctl resumed>) = 0 [pid 5069] umount2("./168/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7171] <... chdir resumed>) = 0 [pid 7167] <... chdir resumed>) = 0 [pid 7163] close(4 [pid 5073] mkdir("./175", 0777 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7167] ioctl(4, LOOP_CLR_FD [pid 7163] <... close resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./168/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7171] <... prctl resumed>) = 0 [pid 7167] <... ioctl resumed>) = 0 [pid 7163] mkdir(NULL, 000 [pid 5069] <... openat resumed>) = 4 [pid 7171] setpgid(0, 0 [pid 7167] close(4 [pid 7163] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5069] fstat(4, [pid 7171] <... setpgid resumed>) = 0 [pid 7167] <... close resumed>) = 0 [pid 7163] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7167] mkdir(NULL, 000 [pid 7163] <... openat resumed>) = 4 [pid 5073] <... openat resumed>) = 3 [pid 5069] getdents64(4, [pid 7171] <... openat resumed>) = 3 [pid 7167] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7163] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7171] write(3, "1000", 4 [pid 7167] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7163] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 7171] <... write resumed>) = 4 [pid 7167] <... openat resumed>) = 4 [pid 7163] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7171] close(3 [pid 7167] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7163] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] close(3 [pid 5070] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] close(4 [pid 7171] <... close resumed>) = 0 [pid 7167] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7163] exit_group(0 [pid 5073] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] <... close resumed>) = 0 [pid 7171] symlink("/dev/binderfs", "./binderfs" [ 235.062996][ T7167] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.076039][ T7167] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7167] mount(NULL, "./bus", NULL, 0, NULL [pid 7163] <... exit_group resumed>) = ? [pid 5069] rmdir("./168/file0" [pid 7171] <... symlink resumed>) = 0 [pid 7167] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7163] +++ exited with 0 +++ [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] fstat(3, [pid 5069] <... rmdir resumed>) = 0 [pid 7171] memfd_create("syzkaller", 0 [pid 7167] exit_group(0 [pid 5069] getdents64(3, [pid 7171] <... memfd_create resumed>) = 3 [pid 7167] <... exit_group resumed>) = ? [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7167] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7163, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] close(3 [pid 7171] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7172 [pid 5070] getdents64(3, [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7167, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} --- ./strace-static-x86_64: Process 7172 attached [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./168") = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5072] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] mkdir("./169", 0777 [pid 5070] lstat("./171/binderfs", [pid 5072] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7172] chdir("./175" [pid 5072] fstat(3, [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] unlink("./171/binderfs" [pid 5069] <... openat resumed>) = 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=0x555556cad5d0) = 7173 [pid 5070] <... unlink resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7172] <... chdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5074] <... openat resumed>) = 3 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(3, [pid 5072] lstat("./172/binderfs", [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7172] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] unlink("./172/binderfs" [pid 7172] <... prctl resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... unlink resumed>) = 0 [pid 7172] setpgid(0, 0 [pid 5074] lstat("./176/binderfs", [pid 5072] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./176/binderfs" [pid 7172] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 7173 attached [pid 7173] chdir("./169") = 0 [pid 7173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... unlink resumed>) = 0 [pid 5074] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7173] <... prctl resumed>) = 0 [pid 7172] <... openat resumed>) = 3 [pid 7173] setpgid(0, 0) = 0 [pid 7172] write(3, "1000", 4 [pid 7173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7172] <... write resumed>) = 4 [pid 7173] <... openat resumed>) = 3 [pid 7173] write(3, "1000", 4) = 4 [pid 7173] close(3) = 0 [pid 7173] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7173] memfd_create("syzkaller", 0) = 3 [pid 7173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7172] close(3) = 0 [pid 7172] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7172] memfd_create("syzkaller", 0) = 3 [pid 7172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7171] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./172/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./172/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... umount2 resumed>) = 0 [pid 5072] getdents64(4, [pid 5074] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(4 [pid 7173] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] lstat("./176/file0", [pid 5072] <... close resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./172/file0" [pid 5074] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... rmdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(3, [pid 5074] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 4 [pid 5072] close(3 [pid 5074] fstat(4, [pid 5072] <... close resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./172") = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] mkdir("./173", 0777 [pid 5074] getdents64(4, [pid 5072] <... mkdir resumed>) = 0 [pid 7172] <... write resumed>) = 4194304 [pid 7172] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5074] close(4 [pid 5072] <... openat resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7172] <... munmap resumed>) = 0 [pid 5074] rmdir("./176/file0" [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... rmdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] close(3 [pid 5070] openat(AT_FDCWD, "./171/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, [pid 5072] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./171/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] getdents64(3, [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] close(3 [pid 7172] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] <... close resumed>) = 0 [pid 5070] rmdir("./171") = 0 [pid 7172] <... openat resumed>) = 4 [pid 5070] mkdir("./172", 0777 [pid 7172] ioctl(4, LOOP_SET_FD, 3 [pid 5074] close(3 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7174 [pid 5070] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", 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./strace-static-x86_64: Process 7174 attached [pid 5074] <... close resumed>) = 0 [pid 7174] chdir("./173") = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7175 [pid 7174] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7174] setpgid(0, 0) = 0 [pid 7174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7174] write(3, "1000", 4) = 4 [pid 7174] close(3) = 0 [pid 7174] symlink("/dev/binderfs", "./binderfs") = 0 ./strace-static-x86_64: Process 7175 attached [pid 7174] memfd_create("syzkaller", 0 [pid 5074] rmdir("./176" [pid 7175] chdir("./172" [pid 7174] <... memfd_create resumed>) = 3 [pid 5074] <... rmdir resumed>) = 0 [pid 7175] <... chdir resumed>) = 0 [pid 7174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] mkdir("./177", 0777 [pid 7175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7174] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7172] <... ioctl resumed>) = 0 [pid 7171] <... write resumed>) = 4194304 [pid 5074] <... mkdir resumed>) = 0 [pid 7175] <... prctl resumed>) = 0 [pid 7172] close(3 [pid 7171] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7175] setpgid(0, 0) = 0 [pid 7175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7172] <... close resumed>) = 0 [pid 7175] write(3, "1000", 4) = 4 [pid 7175] close(3 [pid 7171] <... munmap resumed>) = 0 [pid 7175] <... close resumed>) = 0 [pid 7172] mkdir("./file0", 0777 [pid 7171] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... openat resumed>) = 3 [pid 7175] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7175] memfd_create("syzkaller", 0) = 3 [pid 7172] <... mkdir resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7171] <... openat resumed>) = 4 [pid 7175] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7173] <... write resumed>) = 4194304 [pid 7172] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7171] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [ 235.385367][ T7172] loop4: detected capacity change from 0 to 8192 [pid 7173] munmap(0x7f8a1b2e3000, 4194304 [pid 7171] <... ioctl resumed>) = 0 [pid 5074] close(3 [pid 7173] <... munmap resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 7173] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7171] close(3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7174] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7173] <... openat resumed>) = 4 [pid 7171] <... close resumed>) = 0 [ 235.438073][ T7171] loop2: detected capacity change from 0 to 8192 [ 235.457470][ T7172] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.470920][ T7172] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 235.477268][ T7173] loop0: detected capacity change from 0 to 8192 ./strace-static-x86_64: Process 7177 attached [pid 7173] ioctl(4, LOOP_SET_FD, 3 [pid 7171] mkdir("./file0", 0777 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7177 [pid 7177] chdir("./177" [pid 7173] <... ioctl resumed>) = 0 [pid 7171] <... mkdir resumed>) = 0 [pid 7177] <... chdir resumed>) = 0 [pid 7177] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7173] close(3 [pid 7177] <... prctl resumed>) = 0 [pid 7173] <... close resumed>) = 0 [pid 7173] mkdir("./file0", 0777 [pid 7177] setpgid(0, 0) = 0 [pid 7171] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7173] <... mkdir resumed>) = 0 [pid 7173] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7177] <... openat resumed>) = 3 [pid 7177] write(3, "1000", 4) = 4 [pid 7177] close(3) = 0 [pid 7177] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7177] memfd_create("syzkaller", 0) = 3 [ 235.481568][ T7172] REISERFS (device loop4): using ordered data mode [ 235.501241][ T7172] reiserfs: using flush barriers [ 235.508049][ T7171] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.509923][ T7172] 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 7177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 235.539941][ T7173] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.566894][ T7172] REISERFS (device loop4): checking transaction log (loop4) [ 235.574630][ T7171] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 7175] <... write resumed>) = 4194304 [pid 7175] munmap(0x7f8a1b2e3000, 4194304) = 0 [ 235.575905][ T7172] REISERFS (device loop4): Using r5 hash to sort names [ 235.584615][ T7171] REISERFS (device loop2): using ordered data mode [ 235.598170][ T7171] reiserfs: using flush barriers [ 235.604424][ T7173] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 235.604627][ T7171] 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 7175] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7175] ioctl(4, LOOP_SET_FD, 3 [pid 7172] <... mount resumed>) = 0 [pid 7172] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7177] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7172] <... openat resumed>) = 3 [pid 7174] <... write resumed>) = 4194304 [pid 7174] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7174] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7174] ioctl(4, LOOP_SET_FD, 3 [pid 7175] <... ioctl resumed>) = 0 [pid 7175] close(3) = 0 [ 235.614573][ T7172] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.642611][ T7173] REISERFS (device loop0): using ordered data mode [ 235.642830][ T7172] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 235.653353][ T7175] loop1: detected capacity change from 0 to 8192 [ 235.668377][ T7171] REISERFS (device loop2): checking transaction log (loop2) [ 235.680074][ T7174] loop3: detected capacity change from 0 to 8192 [pid 7175] mkdir("./file0", 0777) = 0 [pid 7172] chdir("./file0" [pid 7175] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7172] <... chdir resumed>) = 0 [pid 7172] ioctl(4, LOOP_CLR_FD) = 0 [ 235.687430][ T7173] reiserfs: using flush barriers [ 235.694172][ T7171] REISERFS (device loop2): Using r5 hash to sort names [ 235.710061][ T7171] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.710301][ T7175] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7172] close(4 [pid 7177] <... write resumed>) = 4194304 [pid 7174] <... ioctl resumed>) = 0 [pid 7172] <... close resumed>) = 0 [pid 7177] munmap(0x7f8a1b2e3000, 4194304 [pid 7174] close(3 [pid 7172] mkdir(NULL, 000 [pid 7177] <... munmap resumed>) = 0 [pid 7174] <... close resumed>) = 0 [pid 7172] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7171] <... mount resumed>) = 0 [pid 7177] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7174] mkdir("./file0", 0777 [pid 7172] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7171] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7177] <... openat resumed>) = 4 [pid 7174] <... mkdir resumed>) = 0 [pid 7177] ioctl(4, LOOP_SET_FD, 3 [pid 7174] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7172] <... openat resumed>) = 4 [pid 7171] <... openat resumed>) = 3 [ 235.722893][ T7171] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 235.751956][ T7175] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 235.761300][ T7173] 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 [ 235.771116][ T7175] REISERFS (device loop1): using ordered data mode [ 235.778819][ T7173] REISERFS (device loop0): checking transaction log (loop0) [pid 7172] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7171] chdir("./file0" [pid 7172] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7171] <... chdir resumed>) = 0 [pid 7172] mount(NULL, "./bus", NULL, 0, NULL [pid 7171] ioctl(4, LOOP_CLR_FD [pid 7172] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7171] <... ioctl resumed>) = 0 [pid 7172] exit_group(0 [pid 7171] close(4 [pid 7172] <... exit_group resumed>) = ? [pid 7171] <... close resumed>) = 0 [pid 7172] +++ exited with 0 +++ [pid 7171] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7171] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7172, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 7171] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 7171] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7171] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [ 235.785113][ T7177] loop5: detected capacity change from 0 to 8192 [ 235.794171][ T7175] reiserfs: using flush barriers [ 235.804790][ T7173] REISERFS (device loop0): Using r5 hash to sort names [ 235.813812][ T7173] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7171] exit_group(0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7171] <... exit_group resumed>) = ? [pid 5073] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7171] +++ exited with 0 +++ [pid 5073] <... openat resumed>) = 3 [pid 5073] fstat(3, [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7171, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=14 /* 0.14 s */} --- [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] restart_syscall(<... resuming interrupted clone ...> [ 235.826551][ T7175] 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 [ 235.826992][ T7173] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 235.854120][ T7175] REISERFS (device loop1): checking transaction log (loop1) [ 235.862556][ T7174] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.870312][ T7175] REISERFS (device loop1): Using r5 hash to sort names [pid 5073] getdents64(3, [pid 5071] <... restart_syscall resumed>) = 0 [pid 7177] <... ioctl resumed>) = 0 [pid 7173] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7177] close(3 [pid 7173] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7177] <... close resumed>) = 0 [pid 7173] <... openat resumed>) = 3 [pid 7177] mkdir("./file0", 0777 [pid 7173] chdir("./file0" [pid 7177] <... mkdir resumed>) = 0 [pid 7173] <... chdir resumed>) = 0 [pid 7177] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7173] ioctl(4, LOOP_CLR_FD) = 0 [pid 7173] close(4) = 0 [pid 7173] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7173] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7173] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7173] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7173] exit_group(0) = ? [pid 7173] +++ exited with 0 +++ [pid 5073] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7173, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5073] lstat("./175/binderfs", [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./169", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./175/binderfs" [pid 5071] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... unlink resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [ 235.883550][ T7177] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 235.907870][ T7174] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 235.916051][ T7175] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 235.918663][ T7177] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5069] openat(AT_FDCWD, "./169", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] fstat(3, [pid 5069] <... openat resumed>) = 3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(3, [pid 5071] getdents64(3, [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] getdents64(3, [pid 5071] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./169/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./173/binderfs", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] lstat("./169/binderfs", [pid 5071] unlink("./173/binderfs" [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5069] unlink("./169/binderfs" [pid 5071] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... unlink resumed>) = 0 [pid 5069] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7175] <... mount resumed>) = 0 [ 235.932038][ T7175] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 235.940066][ T7177] REISERFS (device loop5): using ordered data mode [ 235.955789][ T7177] reiserfs: using flush barriers [ 235.962464][ T7177] 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 [ 235.969520][ T7174] REISERFS (device loop3): using ordered data mode [ 235.980118][ T7177] REISERFS (device loop5): checking transaction log (loop5) [pid 7175] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7175] chdir("./file0") = 0 [pid 7175] ioctl(4, LOOP_CLR_FD) = 0 [pid 7175] close(4 [pid 7177] <... mount resumed>) = 0 [pid 7175] <... close resumed>) = 0 [pid 7175] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7175] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7175] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [ 235.987939][ T7174] reiserfs: using flush barriers [ 235.994344][ T7177] REISERFS (device loop5): Using r5 hash to sort names [ 236.005415][ T7177] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.018687][ T7177] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7175] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7177] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7175] exit_group(0) = ? [pid 7175] +++ exited with 0 +++ [pid 7177] <... openat resumed>) = 3 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7175, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 7177] chdir("./file0") = 0 [pid 7177] ioctl(4, LOOP_CLR_FD) = 0 [pid 5070] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 236.028298][ T7174] 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 [ 236.045903][ T7174] REISERFS (device loop3): checking transaction log (loop3) [ 236.058621][ T7174] REISERFS (device loop3): Using r5 hash to sort names [ 236.065886][ T7174] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] getdents64(3, [pid 7177] close(4 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7177] <... close resumed>) = 0 [pid 7174] <... mount resumed>) = 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5070] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7177] mkdir(NULL, 000 [pid 7174] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5071] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7177] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7174] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./172/binderfs", [pid 7177] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7174] chdir("./file0" [pid 5071] lstat("./173/file0", [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7177] <... openat resumed>) = 4 [pid 7174] <... chdir resumed>) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] unlink("./172/binderfs" [pid 7177] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7174] ioctl(4, LOOP_CLR_FD [pid 5071] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 7177] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7174] <... ioctl resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7177] mount(NULL, "./bus", NULL, 0, NULL [pid 7174] close(4 [pid 5071] openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7177] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7174] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 7177] exit_group(0 [pid 7174] mkdir(NULL, 000 [pid 7177] <... exit_group resumed>) = ? [pid 7174] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] fstat(4, [pid 7177] +++ exited with 0 +++ [pid 7174] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7177, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [ 236.096484][ T7174] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, [pid 7174] <... openat resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 7174] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] getdents64(3, [pid 5073] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7174] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7174] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5069] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] lstat("./177/binderfs", [pid 7174] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] lstat("./175/file0", [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7174] exit_group(0 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./169/file0", [pid 5071] close(4 [pid 7174] <... exit_group resumed>) = ? [pid 5074] unlink("./177/binderfs") = 0 [pid 5073] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... close resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7174] +++ exited with 0 +++ [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] rmdir("./173/file0" [pid 5073] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7174, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=11 /* 0.11 s */} --- [pid 5069] umount2("./169/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 4 [pid 5072] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 5073] fstat(4, [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] openat(AT_FDCWD, "./169/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] getdents64(4, [pid 5072] <... openat resumed>) = 3 [pid 5071] close(3 [pid 5069] <... openat resumed>) = 4 [pid 5072] fstat(3, [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] fstat(4, [pid 5073] getdents64(4, [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] rmdir("./173" [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./173/binderfs", [pid 5073] close(4 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./173/binderfs") = 0 [pid 5072] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... rmdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] getdents64(4, [pid 5071] mkdir("./174", 0777 [pid 5073] rmdir("./175/file0" [pid 5071] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] getdents64(4, [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] close(4 [pid 5073] <... close resumed>) = 0 [pid 5073] rmdir("./175" [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./169/file0" [pid 5073] <... rmdir resumed>) = 0 [pid 5071] close(3 [pid 5069] <... rmdir resumed>) = 0 [pid 5073] mkdir("./176", 0777) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] getdents64(3, [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 ./strace-static-x86_64: Process 7183 attached [pid 5073] <... openat resumed>) = 3 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7183 [pid 5070] <... umount2 resumed>) = 0 [pid 5069] close(3 [pid 7183] chdir("./174" [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 7183] <... chdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./169") = 0 [pid 5073] close(3 [pid 7183] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5073] <... close resumed>) = 0 [pid 5069] mkdir("./170", 0777 [pid 5070] lstat("./172/file0", [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7183] <... prctl resumed>) = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7184 [pid 5069] <... openat resumed>) = 3 [pid 7183] setpgid(0, 0) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 7183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5069] <... close resumed>) = 0 [pid 7183] <... openat resumed>) = 3 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7183] write(3, "1000", 4./strace-static-x86_64: Process 7184 attached [pid 7184] chdir("./176" [pid 7183] <... write resumed>) = 4 [pid 7183] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7185 [pid 7183] <... close resumed>) = 0 [pid 7183] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7184] <... chdir resumed>) = 0 [pid 7184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7183] memfd_create("syzkaller", 0 [pid 7184] <... prctl resumed>) = 0 [pid 7184] setpgid(0, 0 [pid 7183] <... memfd_create resumed>) = 3 [pid 7184] <... setpgid resumed>) = 0 [pid 7183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7184] write(3, "1000", 4 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7184] <... write resumed>) = 4 [pid 7184] close(3) = 0 [pid 7184] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5070] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7184] memfd_create("syzkaller", 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7184] <... memfd_create resumed>) = 3 [pid 5070] openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, ./strace-static-x86_64: Process 7185 attached {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7185] chdir("./170" [pid 5074] <... umount2 resumed>) = 0 [pid 5070] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 7185] <... chdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 7185] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... close resumed>) = 0 [pid 7185] <... prctl resumed>) = 0 [pid 5070] rmdir("./172/file0" [pid 7185] setpgid(0, 0 [pid 5074] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./177/file0", [pid 5070] <... rmdir resumed>) = 0 [pid 7185] <... setpgid resumed>) = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 7185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] rmdir("./172" [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./173", 0777 [pid 7185] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 7185] write(3, "1000", 4 [pid 5070] <... mkdir resumed>) = 0 [pid 7185] <... write resumed>) = 4 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7185] close(3) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7185] symlink("/dev/binderfs", "./binderfs" [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 7185] <... symlink resumed>) = 0 [pid 5074] getdents64(4, [pid 5070] close(3 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7185] memfd_create("syzkaller", 0 [pid 5074] getdents64(4, [pid 5070] <... close resumed>) = 0 [pid 7185] <... memfd_create resumed>) = 3 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] close(4 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7185] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... close resumed>) = 0 [pid 5074] rmdir("./177/file0" [pid 5072] <... umount2 resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7186 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... close resumed>) = 0 [pid 5072] lstat("./173/file0", [pid 5074] rmdir("./177" [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 7186 attached [pid 7184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5072] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7186] chdir("./173" [pid 5074] mkdir("./178", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7186] <... chdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... openat resumed>) = 4 [pid 7186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] fstat(4, [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] getdents64(4, [pid 7186] setpgid(0, 0 [pid 5074] close(3 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7186] <... setpgid resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5072] getdents64(4, [pid 7186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7186] <... openat resumed>) = 3 [pid 5072] close(4 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7187 [pid 5072] <... close resumed>) = 0 [pid 5072] rmdir("./173/file0") = 0 [pid 7186] write(3, "1000", 4 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7186] <... write resumed>) = 4 [pid 5072] close(3 [pid 7186] close(3 [pid 5072] <... close resumed>) = 0 [pid 7186] <... close resumed>) = 0 [pid 5072] rmdir("./173" [pid 7186] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./174", 0777 [pid 7186] <... symlink resumed>) = 0 [pid 7183] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... mkdir resumed>) = 0 [pid 7186] memfd_create("syzkaller", 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7186] <... memfd_create resumed>) = 3 [pid 5072] <... openat resumed>) = 3 [pid 7186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 7186] <... mmap resumed>) = 0x7f8a1b2e3000 [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=0x555556cad5d0) = 7188 ./strace-static-x86_64: Process 7188 attached [pid 7188] chdir("./174") = 0 [pid 7188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7188] setpgid(0, 0) = 0 [pid 7188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7188] write(3, "1000", 4) = 4 [pid 7188] close(3./strace-static-x86_64: Process 7187 attached ) = 0 [pid 7188] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7187] chdir("./178" [pid 7188] memfd_create("syzkaller", 0 [pid 7187] <... chdir resumed>) = 0 [pid 7188] <... memfd_create resumed>) = 3 [pid 7188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7185] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7187] <... prctl resumed>) = 0 [pid 7187] setpgid(0, 0) = 0 [pid 7187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7187] write(3, "1000", 4) = 4 [pid 7187] close(3) = 0 [pid 7187] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7187] memfd_create("syzkaller", 0) = 3 [pid 7187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7186] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7187] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7184] <... write resumed>) = 4194304 [pid 7184] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7183] <... write resumed>) = 4194304 [pid 7184] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7184] ioctl(4, LOOP_SET_FD, 3 [pid 7188] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7183] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7183] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7183] ioctl(4, LOOP_SET_FD, 3 [pid 7184] <... ioctl resumed>) = 0 [pid 7184] close(3) = 0 [pid 7184] mkdir("./file0", 0777) = 0 [ 236.515276][ T7184] loop4: detected capacity change from 0 to 8192 [ 236.549981][ T7183] loop2: detected capacity change from 0 to 8192 [pid 7184] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7185] <... write resumed>) = 4194304 [pid 7185] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7183] <... ioctl resumed>) = 0 [pid 7185] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7183] close(3 [pid 7185] <... openat resumed>) = 4 [pid 7183] <... close resumed>) = 0 [pid 7186] <... write resumed>) = 4194304 [pid 7185] ioctl(4, LOOP_SET_FD, 3 [pid 7183] mkdir("./file0", 0777 [pid 7186] munmap(0x7f8a1b2e3000, 4194304 [pid 7183] <... mkdir resumed>) = 0 [pid 7183] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7186] <... munmap resumed>) = 0 [pid 7185] <... ioctl resumed>) = 0 [pid 7186] openat(AT_FDCWD, "/dev/loop1", O_RDWR [ 236.567217][ T7184] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.599330][ T7185] loop0: detected capacity change from 0 to 8192 [pid 7185] close(3 [pid 7186] <... openat resumed>) = 4 [pid 7185] <... close resumed>) = 0 [pid 7187] <... write resumed>) = 4194304 [pid 7186] ioctl(4, LOOP_SET_FD, 3 [pid 7185] mkdir("./file0", 0777 [pid 7187] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7185] <... mkdir resumed>) = 0 [pid 7187] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7186] <... ioctl resumed>) = 0 [pid 7185] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7187] <... openat resumed>) = 4 [pid 7187] ioctl(4, LOOP_SET_FD, 3 [pid 7186] close(3 [pid 7187] <... ioctl resumed>) = 0 [ 236.610679][ T7183] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.625255][ T7184] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 236.635140][ T7184] REISERFS (device loop4): using ordered data mode [ 236.642007][ T7186] loop1: detected capacity change from 0 to 8192 [ 236.648534][ T7183] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 236.653998][ T7187] loop5: detected capacity change from 0 to 8192 [pid 7187] close(3) = 0 [pid 7187] mkdir("./file0", 0777 [pid 7186] <... close resumed>) = 0 [pid 7187] <... mkdir resumed>) = 0 [pid 7187] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7186] mkdir("./file0", 0777 [pid 7188] <... write resumed>) = 4194304 [pid 7186] <... mkdir resumed>) = 0 [pid 7188] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7188] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7188] ioctl(4, LOOP_SET_FD, 3 [ 236.658202][ T7183] REISERFS (device loop2): using ordered data mode [ 236.670680][ T7183] reiserfs: using flush barriers [ 236.677598][ T7183] 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 [ 236.687895][ T7184] reiserfs: using flush barriers [ 236.694491][ T7185] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.710220][ T7188] loop3: detected capacity change from 0 to 8192 [pid 7186] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7188] <... ioctl resumed>) = 0 [pid 7188] close(3) = 0 [pid 7188] mkdir("./file0", 0777) = 0 [ 236.711918][ T7185] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 236.728722][ T7187] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.728809][ T7183] REISERFS (device loop2): checking transaction log (loop2) [ 236.743732][ T7184] 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 [ 236.767473][ T7186] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 236.768582][ T7185] REISERFS (device loop0): using ordered data mode [ 236.780696][ T7186] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 236.796415][ T7186] REISERFS (device loop1): using ordered data mode [ 236.797208][ T7183] REISERFS (device loop2): Using r5 hash to sort names [ 236.803278][ T7186] reiserfs: using flush barriers [ 236.815128][ T7187] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 236.816336][ T7184] REISERFS (device loop4): checking transaction log (loop4) [ 236.826409][ T7186] 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 [ 236.831798][ T7185] reiserfs: using flush barriers [ 236.850888][ T7188] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7188] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7183] <... mount resumed>) = 0 [ 236.854969][ T7183] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.866923][ T7185] 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 [ 236.879247][ T7183] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 236.898361][ T7187] REISERFS (device loop5): using ordered data mode [pid 7183] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7183] chdir("./file0") = 0 [pid 7183] ioctl(4, LOOP_CLR_FD) = 0 [pid 7183] close(4) = 0 [ 236.905515][ T7186] REISERFS (device loop1): checking transaction log (loop1) [ 236.916899][ T7188] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 236.921544][ T7184] REISERFS (device loop4): Using r5 hash to sort names [ 236.938202][ T7184] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.951920][ T7186] REISERFS (device loop1): Using r5 hash to sort names [pid 7183] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7183] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 236.959273][ T7186] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 236.962222][ T7185] REISERFS (device loop0): checking transaction log (loop0) [ 236.977608][ T7188] REISERFS (device loop3): using ordered data mode [ 236.987266][ T7187] reiserfs: using flush barriers [ 236.991442][ T7188] reiserfs: using flush barriers [ 237.004318][ T7185] REISERFS (device loop0): Using r5 hash to sort names [pid 7183] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [ 237.007832][ T7184] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 237.016784][ T7188] 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 [ 237.020570][ T7187] 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 [ 237.039007][ T7185] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7186] <... mount resumed>) = 0 [pid 7184] <... mount resumed>) = 0 [pid 7183] mount(NULL, "./bus", NULL, 0, NULL [pid 7186] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7184] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7183] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7186] <... openat resumed>) = 3 [pid 7186] chdir("./file0") = 0 [pid 7186] ioctl(4, LOOP_CLR_FD) = 0 [pid 7184] <... openat resumed>) = 3 [pid 7186] close(4 [pid 7183] exit_group(0 [pid 7184] chdir("./file0" [pid 7183] <... exit_group resumed>) = ? [pid 7186] <... close resumed>) = 0 [pid 7186] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7186] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7186] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7186] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7186] exit_group(0) = ? [pid 7186] +++ exited with 0 +++ [pid 7184] <... chdir resumed>) = 0 [pid 7183] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7186, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7183, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=19 /* 0.19 s */} --- [pid 7184] ioctl(4, LOOP_CLR_FD) = 0 [pid 7184] close(4 [pid 5071] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW [ 237.053538][ T7186] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 237.068095][ T7188] REISERFS (device loop3): checking transaction log (loop3) [ 237.076757][ T7187] REISERFS (device loop5): checking transaction log (loop5) [ 237.098652][ T7188] REISERFS (device loop3): Using r5 hash to sort names [ 237.106924][ T7188] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7184] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7184] mkdir(NULL, 000 [pid 5071] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7184] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 7184] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] fstat(3, [pid 5070] fstat(3, [pid 7184] <... openat resumed>) = 4 [pid 5071] <... 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 7184] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] getdents64(3, [pid 5070] getdents64(3, [pid 7184] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7184] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7184] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] lstat("./174/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7184] exit_group(0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] lstat("./173/binderfs", [pid 7184] <... exit_group resumed>) = ? [pid 5071] unlink("./174/binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7188] <... mount resumed>) = 0 [pid 7184] +++ exited with 0 +++ [pid 5071] <... unlink resumed>) = 0 [pid 5070] unlink("./173/binderfs" [pid 5071] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... unlink resumed>) = 0 [pid 7188] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7184, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=18 /* 0.18 s */} --- [pid 5070] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7188] <... openat resumed>) = 3 [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 7188] chdir("./file0" [pid 5073] <... restart_syscall resumed>) = 0 [pid 7188] <... chdir resumed>) = 0 [pid 7188] ioctl(4, LOOP_CLR_FD) = 0 [pid 5073] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7188] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7188] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./176", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7188] mkdir(NULL, 000 [pid 5073] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7188] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7188] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] lstat("./176/binderfs", [pid 7188] <... openat resumed>) = 4 [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./176/binderfs" [pid 7188] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... unlink resumed>) = 0 [pid 7188] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7188] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7188] exit_group(0) = ? [pid 7188] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7188, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5072] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 237.119906][ T7188] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 237.148873][ T7185] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5072] openat(AT_FDCWD, "./174", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./174/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./174/binderfs") = 0 [pid 5072] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7185] <... mount resumed>) = 0 [pid 7185] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7185] chdir("./file0") = 0 [pid 7185] ioctl(4, LOOP_CLR_FD) = 0 [pid 7185] close(4) = 0 [pid 7185] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7185] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 237.190104][ T7187] REISERFS (device loop5): Using r5 hash to sort names [pid 7185] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7185] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7185] exit_group(0) = ? [pid 7185] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7185, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} --- [pid 5069] umount2("./170", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./170", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./170/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./170/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./170/binderfs") = 0 [pid 5069] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [ 237.252203][ T7187] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./174/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./174/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 resumed>) = 0 [pid 5070] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./173/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./173/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5071] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] <... close resumed>) = 0 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] rmdir("./173/file0" [pid 5073] <... umount2 resumed>) = 0 [pid 5071] close(4 [pid 5070] <... rmdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] getdents64(3, [pid 5071] rmdir("./174/file0" [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] rmdir("./173" [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5070] mkdir("./174", 0777 [pid 5071] close(3 [pid 5070] <... mkdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5071] rmdir("./174" [pid 5070] <... openat resumed>) = 3 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5071] mkdir("./175", 0777 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [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, child_tidptr=0x555556cad5d0) = 7195 [pid 5073] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./176/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./176/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, [pid 5072] <... umount2 resumed>) = 0 [ 237.321400][ T7187] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 7195 attached [pid 7187] <... mount resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] <... openat resumed>) = 3 [pid 7195] chdir("./174" [pid 7187] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] getdents64(4, [pid 5072] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7195] <... chdir resumed>) = 0 [pid 7187] <... openat resumed>) = 3 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7187] chdir("./file0" [pid 5073] close(4 [pid 5071] close(3 [pid 5072] lstat("./174/file0", [pid 7195] <... prctl resumed>) = 0 [pid 7187] <... chdir resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7195] setpgid(0, 0 [pid 7187] ioctl(4, LOOP_CLR_FD [pid 5073] rmdir("./176/file0" [pid 5072] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7195] <... setpgid resumed>) = 0 [pid 7187] <... ioctl resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7187] close(4 [pid 5073] getdents64(3, [pid 5072] openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7195] <... openat resumed>) = 3 [pid 7187] <... close resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... openat resumed>) = 4 [pid 5069] lstat("./170/file0", [pid 7195] write(3, "1000", 4 [pid 7187] mkdir(NULL, 000 [pid 5073] close(3 [pid 5072] fstat(4, [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7196 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7195] <... write resumed>) = 4 [pid 7187] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... close resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./170/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7195] close(3 [pid 7187] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] rmdir("./176" [pid 5072] getdents64(4, [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7195] <... close resumed>) = 0 [pid 7187] <... openat resumed>) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] openat(AT_FDCWD, "./170/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY./strace-static-x86_64: Process 7196 attached [pid 7195] symlink("/dev/binderfs", "./binderfs" [pid 7187] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] mkdir("./177", 0777 [pid 5072] getdents64(4, [pid 5069] <... openat resumed>) = 4 [pid 7196] chdir("./175" [pid 7195] <... symlink resumed>) = 0 [pid 7187] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... mkdir resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] fstat(4, [pid 7196] <... chdir resumed>) = 0 [pid 7195] memfd_create("syzkaller", 0 [pid 7187] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5072] close(4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7195] <... memfd_create resumed>) = 3 [pid 7187] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... openat resumed>) = 3 [pid 5072] <... close resumed>) = 0 [pid 5069] getdents64(4, [pid 7196] <... prctl resumed>) = 0 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5072] rmdir("./174/file0" [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7196] setpgid(0, 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... rmdir resumed>) = 0 [pid 5069] getdents64(4, [pid 7196] <... setpgid resumed>) = 0 [pid 7195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7187] exit_group(0 [pid 5073] close(3 [pid 5072] getdents64(3, [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7195] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7187] <... exit_group resumed>) = ? [pid 5073] <... close resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(4 [pid 7196] <... openat resumed>) = 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] close(3 [pid 5069] <... close resumed>) = 0 [pid 7196] write(3, "1000", 4 [pid 7187] +++ exited with 0 +++ [pid 5072] <... close resumed>) = 0 [pid 5069] rmdir("./170/file0" [pid 7196] <... write resumed>) = 4 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7187, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=14 /* 0.14 s */} --- [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7197 [pid 5072] rmdir("./174" [pid 5069] <... rmdir resumed>) = 0 [pid 7196] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 7196] <... close resumed>) = 0 [pid 5072] mkdir("./175", 0777 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7196] symlink("/dev/binderfs", "./binderfs" [pid 5074] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... mkdir resumed>) = 0 [pid 5069] close(3 [pid 7196] <... symlink resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 7197 attached [pid 7196] memfd_create("syzkaller", 0 [pid 5074] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... openat resumed>) = 3 [pid 5069] rmdir("./170" [pid 7197] chdir("./177" [pid 7196] <... memfd_create resumed>) = 3 [pid 5074] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5069] <... rmdir resumed>) = 0 [pid 7197] <... chdir resumed>) = 0 [pid 7196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] fstat(3, [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] mkdir("./171", 0777 [pid 7197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7196] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] close(3 [pid 5069] <... mkdir resumed>) = 0 [pid 7197] <... prctl resumed>) = 0 [pid 5074] getdents64(3, [pid 5072] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7197] setpgid(0, 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... openat resumed>) = 3 [pid 7197] <... setpgid resumed>) = 0 [pid 5074] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7198 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7197] <... openat resumed>) = 3 [pid 5074] lstat("./178/binderfs", [pid 5069] close(3 [pid 7197] write(3, "1000", 4 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] <... close resumed>) = 0 [pid 7197] <... write resumed>) = 4 [pid 5074] unlink("./178/binderfs" [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7197] close(3 [pid 5074] <... unlink resumed>) = 0 [pid 7197] <... close resumed>) = 0 [pid 5074] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7199 ./strace-static-x86_64: Process 7198 attached [pid 7197] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7197] memfd_create("syzkaller", 0) = 3 [pid 7197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 7199 attached ) = 0x7f8a1b2e3000 [pid 7199] chdir("./171" [pid 7198] chdir("./175" [pid 7195] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7199] <... chdir resumed>) = 0 [pid 7198] <... chdir resumed>) = 0 [pid 7199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7199] <... prctl resumed>) = 0 [pid 7198] <... prctl resumed>) = 0 [pid 7199] setpgid(0, 0 [pid 7198] setpgid(0, 0 [pid 7199] <... setpgid resumed>) = 0 [pid 7198] <... setpgid resumed>) = 0 [pid 7199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7199] <... openat resumed>) = 3 [pid 7198] <... openat resumed>) = 3 [pid 7199] write(3, "1000", 4 [pid 7198] write(3, "1000", 4 [pid 7199] <... write resumed>) = 4 [pid 7198] <... write resumed>) = 4 [pid 7199] close(3 [pid 7198] close(3 [pid 7199] <... close resumed>) = 0 [pid 7198] <... close resumed>) = 0 [pid 7199] symlink("/dev/binderfs", "./binderfs" [pid 7198] symlink("/dev/binderfs", "./binderfs" [pid 7199] <... symlink resumed>) = 0 [pid 7198] <... symlink resumed>) = 0 [pid 7199] memfd_create("syzkaller", 0 [pid 7198] memfd_create("syzkaller", 0 [pid 7199] <... memfd_create resumed>) = 3 [pid 7198] <... memfd_create resumed>) = 3 [pid 7199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7199] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7198] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7197] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 7199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./178/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7198] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./178/file0") = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./178") = 0 [pid 5074] mkdir("./179", 0777 [pid 7196] <... write resumed>) = 4194304 [pid 7195] <... write resumed>) = 4194304 [pid 5074] <... mkdir resumed>) = 0 [pid 7196] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7196] <... munmap resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 7196] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7198] <... write resumed>) = 4194304 [pid 7198] munmap(0x7f8a1b2e3000, 4194304 [pid 7196] <... openat resumed>) = 4 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7198] <... munmap resumed>) = 0 [pid 7195] munmap(0x7f8a1b2e3000, 4194304 [pid 7198] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7196] ioctl(4, LOOP_SET_FD, 3 [pid 5074] close(3 [pid 7198] <... openat resumed>) = 4 [pid 7195] <... munmap resumed>) = 0 [pid 7195] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7195] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... close resumed>) = 0 [pid 7198] ioctl(4, LOOP_SET_FD, 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7195] <... ioctl resumed>) = 0 [pid 7195] close(3) = 0 [pid 7195] mkdir("./file0", 0777) = 0 [pid 7195] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7197] <... write resumed>) = 4194304 [pid 7196] <... ioctl resumed>) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7200 [pid 7198] <... ioctl resumed>) = 0 [pid 7197] munmap(0x7f8a1b2e3000, 4194304 [pid 7196] close(3./strace-static-x86_64: Process 7200 attached [pid 7198] close(3 [pid 7197] <... munmap resumed>) = 0 [pid 7196] <... close resumed>) = 0 [pid 7200] chdir("./179" [pid 7198] <... close resumed>) = 0 [pid 7197] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7196] mkdir("./file0", 0777 [pid 7200] <... chdir resumed>) = 0 [pid 7198] mkdir("./file0", 0777 [pid 7197] <... openat resumed>) = 4 [pid 7196] <... mkdir resumed>) = 0 [pid 7200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7198] <... mkdir resumed>) = 0 [pid 7197] ioctl(4, LOOP_SET_FD, 3 [pid 7196] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7200] <... prctl resumed>) = 0 [pid 7199] <... write resumed>) = 4194304 [pid 7198] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7199] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7199] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7200] setpgid(0, 0 [pid 7199] <... openat resumed>) = 4 [pid 7197] <... ioctl resumed>) = 0 [ 237.689888][ T7196] loop2: detected capacity change from 0 to 8192 [ 237.695568][ T7195] loop1: detected capacity change from 0 to 8192 [ 237.704603][ T7198] loop3: detected capacity change from 0 to 8192 [ 237.728877][ T7197] loop4: detected capacity change from 0 to 8192 [pid 7199] ioctl(4, LOOP_SET_FD, 3 [pid 7200] <... setpgid resumed>) = 0 [pid 7199] <... ioctl resumed>) = 0 [pid 7199] close(3) = 0 [pid 7199] mkdir("./file0", 0777) = 0 [pid 7199] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 237.738771][ T7195] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.740881][ T7199] loop0: detected capacity change from 0 to 8192 [ 237.753328][ T7196] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.766140][ T7195] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 237.781482][ T7195] REISERFS (device loop1): using ordered data mode [pid 7200] write(3, "1000", 4 [ 237.782106][ T7198] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.788735][ T7195] reiserfs: using flush barriers [ 237.806169][ T7196] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 237.808320][ T7198] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 237.816462][ T7196] REISERFS (device loop2): using ordered data mode [pid 7197] close(3 [pid 7200] <... write resumed>) = 4 [pid 7197] <... close resumed>) = 0 [pid 7200] close(3 [ 237.825037][ T7195] 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 [ 237.831160][ T7196] reiserfs: using flush barriers [ 237.848117][ T7199] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 237.853236][ T7198] REISERFS (device loop3): using ordered data mode [ 237.865072][ T7196] 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 7197] mkdir("./file0", 0777 [pid 7200] <... close resumed>) = 0 [pid 7197] <... mkdir resumed>) = 0 [pid 7200] symlink("/dev/binderfs", "./binderfs" [ 237.871620][ T7198] reiserfs: using flush barriers [ 237.890021][ T7199] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 237.895033][ T7195] REISERFS (device loop1): checking transaction log (loop1) [ 237.904493][ T7196] REISERFS (device loop2): checking transaction log (loop2) [ 237.909480][ T7198] 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 [ 237.918866][ T7199] REISERFS (device loop0): using ordered data mode [pid 7197] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7200] <... symlink resumed>) = 0 [ 237.934552][ T7198] REISERFS (device loop3): checking transaction log (loop3) [ 237.947914][ T7199] reiserfs: using flush barriers [ 237.948941][ T7196] REISERFS (device loop2): Using r5 hash to sort names [ 237.959990][ T7198] REISERFS (device loop3): Using r5 hash to sort names [ 237.962097][ T7196] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 237.967258][ T7195] REISERFS (device loop1): Using r5 hash to sort names [pid 7200] memfd_create("syzkaller", 0 [pid 7196] <... mount resumed>) = 0 [pid 7196] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7196] chdir("./file0") = 0 [pid 7196] ioctl(4, LOOP_CLR_FD) = 0 [pid 7196] close(4 [pid 7200] <... memfd_create resumed>) = 3 [pid 7200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 237.981264][ T7196] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 237.986480][ T7199] 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 [ 237.986838][ T7199] REISERFS (device loop0): checking transaction log (loop0) [ 238.020551][ T7197] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7200] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7196] <... close resumed>) = 0 [pid 7196] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7196] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7196] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7195] <... mount resumed>) = 0 [pid 7196] mount(NULL, "./bus", NULL, 0, NULL [pid 7195] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7196] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7195] <... openat resumed>) = 3 [pid 7196] exit_group(0 [pid 7195] chdir("./file0") = 0 [pid 7196] <... exit_group resumed>) = ? [pid 7195] ioctl(4, LOOP_CLR_FD [pid 7196] +++ exited with 0 +++ [pid 7195] <... ioctl resumed>) = 0 [ 238.032507][ T7198] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.043214][ T7197] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 238.057078][ T7195] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.069418][ T7198] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 238.071214][ T7195] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7195] close(4 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7196, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 7198] <... mount resumed>) = 0 [pid 7195] <... close resumed>) = 0 [pid 5071] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./175", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./175/binderfs") = 0 [pid 5071] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7198] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7195] mkdir(NULL, 000 [pid 7198] <... openat resumed>) = 3 [pid 7195] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7198] chdir("./file0" [pid 7195] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7198] <... chdir resumed>) = 0 [pid 7195] <... openat resumed>) = 4 [ 238.097656][ T7197] REISERFS (device loop4): using ordered data mode [ 238.104341][ T7197] reiserfs: using flush barriers [ 238.108485][ T7199] REISERFS (device loop0): Using r5 hash to sort names [ 238.117122][ T7197] 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 7200] <... write resumed>) = 4194304 [pid 7198] ioctl(4, LOOP_CLR_FD [pid 7195] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7200] munmap(0x7f8a1b2e3000, 4194304 [pid 7198] <... ioctl resumed>) = 0 [pid 7195] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7200] <... munmap resumed>) = 0 [pid 7199] <... mount resumed>) = 0 [pid 7198] close(4 [pid 7195] mount(NULL, "./bus", NULL, 0, NULL [pid 7200] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7198] <... close resumed>) = 0 [pid 7195] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7200] <... openat resumed>) = 4 [pid 7198] mkdir(NULL, 000 [pid 7195] exit_group(0 [pid 7200] ioctl(4, LOOP_SET_FD, 3 [pid 7198] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7195] <... exit_group resumed>) = ? [pid 7198] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7195] +++ exited with 0 +++ [pid 7198] <... openat resumed>) = 4 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7195, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=20 /* 0.20 s */} --- [pid 7198] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7198] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [ 238.144771][ T7199] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.150635][ T7197] REISERFS (device loop4): checking transaction log (loop4) [ 238.165990][ T7199] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 238.171054][ T7197] REISERFS (device loop4): Using r5 hash to sort names [ 238.185086][ T7200] loop5: detected capacity change from 0 to 8192 [pid 7198] exit_group(0) = ? [pid 7198] +++ exited with 0 +++ [pid 5070] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7198, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7199] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7199] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 7199] chdir("./file0" [pid 5070] fstat(3, [pid 7200] <... ioctl resumed>) = 0 [pid 7199] <... chdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7200] close(3 [pid 7199] ioctl(4, LOOP_CLR_FD [pid 5070] getdents64(3, [pid 7200] <... close resumed>) = 0 [pid 7199] <... ioctl resumed>) = 0 [pid 5072] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7200] mkdir("./file0", 0777 [pid 7199] close(4 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7200] <... mkdir resumed>) = 0 [pid 7199] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7200] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7199] mkdir(NULL, 000 [pid 5072] <... openat resumed>) = 3 [pid 5070] lstat("./174/binderfs", [pid 7199] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5072] fstat(3, [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7199] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] unlink("./174/binderfs" [pid 7199] <... openat resumed>) = 4 [pid 5072] getdents64(3, [pid 5070] <... unlink resumed>) = 0 [pid 7199] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7199] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7199] mount(NULL, "./bus", NULL, 0, NULL [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7199] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5072] lstat("./175/binderfs", [pid 7199] exit_group(0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7199] <... exit_group resumed>) = ? [ 238.206653][ T7197] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.232264][ T7200] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] unlink("./175/binderfs" [pid 7199] +++ exited with 0 +++ [pid 7197] <... mount resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 7197] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7197] <... openat resumed>) = 3 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7199, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 7197] chdir("./file0" [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7197] <... chdir resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 7197] ioctl(4, LOOP_CLR_FD) = 0 [pid 7197] close(4 [pid 5069] umount2("./171", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7197] <... close resumed>) = 0 [pid 7197] mkdir(NULL, 000 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7197] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5069] openat(AT_FDCWD, "./171", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7197] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5069] <... openat resumed>) = 3 [pid 5069] fstat(3, [pid 7197] <... openat resumed>) = 4 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7197] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5069] getdents64(3, [pid 7197] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7197] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7197] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] umount2("./171/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7197] exit_group(0 [pid 5071] lstat("./175/file0", [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7197] <... exit_group resumed>) = ? [pid 7197] +++ exited with 0 +++ [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] lstat("./171/binderfs", [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7197, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5071] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 238.253032][ T7197] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 238.273737][ T7200] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 238.284570][ T7200] REISERFS (device loop5): using ordered data mode [ 238.291303][ T7200] reiserfs: using flush barriers [pid 5072] <... umount2 resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] unlink("./171/binderfs" [pid 5073] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... openat resumed>) = 4 [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] fstat(4, [pid 5070] <... umount2 resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] lstat("./175/file0", [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, [pid 5072] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] fstat(3, [pid 5070] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] getdents64(4, [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./171/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./171/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./171/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 5073] getdents64(3, [pid 5072] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] lstat("./174/file0", [pid 5071] close(4 [pid 5072] <... openat resumed>) = 4 [pid 5071] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] fstat(4, [pid 5071] rmdir("./175/file0" [pid 5070] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] getdents64(4, [pid 5071] <... rmdir resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] lstat("./177/binderfs", [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(3, [pid 5070] openat(AT_FDCWD, "./174/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] getdents64(4, [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] unlink("./177/binderfs" [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(3 [pid 5070] <... openat resumed>) = 4 [pid 5073] <... unlink resumed>) = 0 [pid 5072] close(4 [pid 5071] <... close resumed>) = 0 [pid 5070] fstat(4, [pid 5069] getdents64(4, [pid 5073] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... close resumed>) = 0 [pid 5071] rmdir("./175" [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] rmdir("./175/file0" [pid 5071] <... rmdir resumed>) = 0 [pid 5070] getdents64(4, [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5071] mkdir("./176", 0777 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, [pid 5072] getdents64(3, [pid 5069] close(4 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] close(3 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] close(4 [pid 5069] rmdir("./171/file0" [ 238.326693][ T7200] 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 [ 238.364046][ T7200] REISERFS (device loop5): checking transaction log (loop5) [pid 5072] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./171") = 0 [pid 5069] mkdir("./172", 0777 [pid 5072] rmdir("./175" [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5070] rmdir("./174/file0" [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... rmdir resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5072] mkdir("./176", 0777 [pid 5071] close(3 [pid 5070] getdents64(3, [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] <... mkdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5071] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 5072] <... openat resumed>) = 3 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] close(3 [pid 5069] <... close resumed>) = 0 ./strace-static-x86_64: Process 7207 attached [pid 7200] <... mount resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 5070] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7207] chdir("./176" [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7207 [pid 5070] rmdir("./174" [pid 7207] <... chdir resumed>) = 0 [pid 5072] close(3 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7208 [pid 7207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 7207] <... prctl resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] mkdir("./175", 0777 [pid 7207] setpgid(0, 0 [pid 7200] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY./strace-static-x86_64: Process 7209 attached ./strace-static-x86_64: Process 7208 attached [pid 7207] <... setpgid resumed>) = 0 [pid 7200] <... openat resumed>) = 3 [pid 5070] <... mkdir resumed>) = 0 [pid 7209] chdir("./176" [pid 7208] chdir("./172" [pid 7207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7200] chdir("./file0" [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7209 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7209] <... chdir resumed>) = 0 [pid 7208] <... chdir resumed>) = 0 [pid 7209] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7209] <... prctl resumed>) = 0 [pid 7208] <... prctl resumed>) = 0 [pid 7209] setpgid(0, 0 [pid 7208] setpgid(0, 0 [pid 7207] <... openat resumed>) = 3 [pid 7200] <... chdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 7209] <... setpgid resumed>) = 0 [pid 7208] <... setpgid resumed>) = 0 [pid 7207] write(3, "1000", 4 [pid 7200] ioctl(4, LOOP_CLR_FD [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7207] <... write resumed>) = 4 [pid 7200] <... ioctl resumed>) = 0 [pid 7209] <... openat resumed>) = 3 [pid 7208] <... openat resumed>) = 3 [pid 7207] close(3 [pid 7200] close(4 [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7209] write(3, "1000", 4 [pid 7208] write(3, "1000", 4 [pid 7207] <... close resumed>) = 0 [pid 7200] <... close resumed>) = 0 [pid 5070] close(3 [pid 7209] <... write resumed>) = 4 [pid 7208] <... write resumed>) = 4 [pid 7207] symlink("/dev/binderfs", "./binderfs" [pid 7200] mkdir(NULL, 000 [pid 5070] <... close resumed>) = 0 [pid 7209] close(3 [ 238.400176][ T7200] REISERFS (device loop5): Using r5 hash to sort names [ 238.417819][ T7200] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.431263][ T7200] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7208] close(3 [pid 7207] <... symlink resumed>) = 0 [pid 7200] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7209] <... close resumed>) = 0 [pid 7208] <... close resumed>) = 0 [pid 7207] memfd_create("syzkaller", 0 [pid 7200] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 7210 attached [pid 7209] symlink("/dev/binderfs", "./binderfs" [pid 7208] symlink("/dev/binderfs", "./binderfs" [pid 7207] <... memfd_create resumed>) = 3 [pid 7200] <... openat resumed>) = 4 [pid 7209] <... symlink resumed>) = 0 [pid 7208] <... symlink resumed>) = 0 [pid 7207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7200] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7210] chdir("./175" [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7210 [pid 7210] <... chdir resumed>) = 0 [pid 7209] memfd_create("syzkaller", 0 [pid 7208] memfd_create("syzkaller", 0 [pid 7207] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7200] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7209] <... memfd_create resumed>) = 3 [pid 7208] <... memfd_create resumed>) = 3 [pid 7209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7209] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7208] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] <... umount2 resumed>) = 0 [pid 7210] <... prctl resumed>) = 0 [pid 7200] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7210] setpgid(0, 0 [pid 7200] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7210] <... setpgid resumed>) = 0 [pid 7200] exit_group(0 [pid 5073] lstat("./177/file0", [pid 7210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7200] <... exit_group resumed>) = ? [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7210] <... openat resumed>) = 3 [pid 5073] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7210] write(3, "1000", 4 [pid 7200] +++ exited with 0 +++ [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7210] <... write resumed>) = 4 [pid 5073] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7210] close(3 [pid 7207] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7200, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5073] <... openat resumed>) = 4 [pid 7210] <... close resumed>) = 0 [pid 5073] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./177/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./177" [pid 7210] symlink("/dev/binderfs", "./binderfs" [pid 5074] restart_syscall(<... resuming interrupted clone ...> [pid 5073] <... rmdir resumed>) = 0 [pid 7210] <... symlink resumed>) = 0 [pid 5074] <... restart_syscall resumed>) = 0 [pid 5073] mkdir("./178", 0777 [pid 7210] memfd_create("syzkaller", 0 [pid 5073] <... mkdir resumed>) = 0 [pid 7210] <... memfd_create resumed>) = 3 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... openat resumed>) = 3 [pid 7210] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [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 5074] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7211 ./strace-static-x86_64: Process 7211 attached [pid 7211] chdir("./178") = 0 [pid 7211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7211] setpgid(0, 0) = 0 [pid 7211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... openat resumed>) = 3 [pid 7211] <... openat resumed>) = 3 [pid 5074] fstat(3, [pid 7211] write(3, "1000", 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7211] <... write resumed>) = 4 [pid 5074] getdents64(3, [pid 7211] close(3 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7211] <... close resumed>) = 0 [pid 5074] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7211] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7211] <... symlink resumed>) = 0 [pid 5074] lstat("./179/binderfs", [pid 7211] memfd_create("syzkaller", 0 [pid 7208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7211] <... memfd_create resumed>) = 3 [pid 5074] unlink("./179/binderfs" [pid 7211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... unlink resumed>) = 0 [pid 7211] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7209] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7211] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7207] <... write resumed>) = 4194304 [pid 7210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7207] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7207] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7207] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7207] close(3) = 0 [pid 7208] <... write resumed>) = 4194304 [pid 7207] mkdir("./file0", 0777 [pid 5074] <... umount2 resumed>) = 0 [pid 7208] munmap(0x7f8a1b2e3000, 4194304 [pid 7207] <... mkdir resumed>) = 0 [pid 7208] <... munmap resumed>) = 0 [pid 7207] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7208] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7208] <... openat resumed>) = 4 [ 238.710685][ T7207] loop2: detected capacity change from 0 to 8192 [pid 5074] lstat("./179/file0", [pid 7209] <... write resumed>) = 4194304 [pid 7208] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7211] <... write resumed>) = 4194304 [pid 7210] <... write resumed>) = 4194304 [pid 7208] <... ioctl resumed>) = 0 [pid 7209] munmap(0x7f8a1b2e3000, 4194304 [pid 7208] close(3) = 0 [pid 7208] mkdir("./file0", 0777 [pid 7209] <... munmap resumed>) = 0 [pid 5074] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7211] munmap(0x7f8a1b2e3000, 4194304 [pid 7210] munmap(0x7f8a1b2e3000, 4194304 [pid 7209] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7208] <... mkdir resumed>) = 0 [pid 7209] ioctl(4, LOOP_SET_FD, 3 [ 238.752078][ T7207] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.768633][ T7208] loop0: detected capacity change from 0 to 8192 [ 238.770968][ T7207] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 238.784784][ T7207] REISERFS (device loop2): using ordered data mode [ 238.790937][ T7209] loop3: detected capacity change from 0 to 8192 [pid 7211] <... munmap resumed>) = 0 [pid 7210] <... munmap resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7211] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7210] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7209] <... ioctl resumed>) = 0 [pid 7208] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] openat(AT_FDCWD, "./179/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7211] <... openat resumed>) = 4 [pid 7210] <... openat resumed>) = 4 [pid 5074] <... openat resumed>) = 4 [pid 7211] ioctl(4, LOOP_SET_FD, 3 [pid 7210] ioctl(4, LOOP_SET_FD, 3 [pid 7209] close(3 [pid 5074] fstat(4, [pid 7211] <... ioctl resumed>) = 0 [pid 7209] <... close resumed>) = 0 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7211] close(3 [pid 7209] mkdir("./file0", 0777 [pid 5074] getdents64(4, [pid 7211] <... close resumed>) = 0 [pid 7209] <... mkdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7211] mkdir("./file0", 0777 [pid 7209] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] getdents64(4, [pid 7211] <... mkdir resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7211] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] close(4) = 0 [pid 5074] rmdir("./179/file0") = 0 [ 238.793024][ T7207] reiserfs: using flush barriers [ 238.804420][ T7207] 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 [ 238.807258][ T7211] loop4: detected capacity change from 0 to 8192 [ 238.822030][ T7207] REISERFS (device loop2): checking transaction log (loop2) [ 238.827903][ T7210] loop1: detected capacity change from 0 to 8192 [ 238.835829][ T7207] REISERFS (device loop2): Using r5 hash to sort names [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./179") = 0 [pid 5074] mkdir("./180", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 238.848560][ T7208] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.849386][ T7207] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 238.875707][ T7211] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.880391][ T7207] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] close(3 [pid 7207] <... mount resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 7207] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7207] <... openat resumed>) = 3 [pid 7207] chdir("./file0" [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7216 [pid 7207] <... chdir resumed>) = 0 [pid 7207] ioctl(4, LOOP_CLR_FD) = 0 [pid 7207] close(4) = 0 [pid 7207] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7207] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 7216 attached ) = 4 [pid 7210] <... ioctl resumed>) = 0 [pid 7207] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7207] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7207] exit_group(0 [pid 7216] chdir("./180" [pid 7210] close(3 [pid 7207] <... exit_group resumed>) = ? [pid 7207] +++ exited with 0 +++ [ 238.889107][ T7209] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 238.917733][ T7208] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 238.920347][ T7211] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 238.928414][ T7208] REISERFS (device loop0): using ordered data mode [ 238.936593][ T7211] REISERFS (device loop4): using ordered data mode [pid 7216] <... chdir resumed>) = 0 [pid 7210] <... close resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7207, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 7216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7210] mkdir("./file0", 0777 [pid 7216] <... prctl resumed>) = 0 [pid 7210] <... mkdir resumed>) = 0 [pid 7216] setpgid(0, 0 [pid 7210] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5071] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7216] <... setpgid resumed>) = 0 [pid 7216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7216] write(3, "1000", 4) = 4 [pid 7216] close(3) = 0 [ 238.943327][ T7209] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 238.950274][ T7211] reiserfs: using flush barriers [ 238.960030][ T7208] reiserfs: using flush barriers [ 238.965275][ T7209] REISERFS (device loop3): using ordered data mode [ 238.970629][ T7211] 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 [ 238.975680][ T7209] reiserfs: using flush barriers [pid 7216] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7216] memfd_create("syzkaller", 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7216] <... memfd_create resumed>) = 3 [pid 5071] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5071] <... openat resumed>) = 3 [ 238.993079][ T7211] REISERFS (device loop4): checking transaction log (loop4) [ 239.006486][ T7210] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.017040][ T7208] 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 [ 239.037397][ T7211] REISERFS (device loop4): Using r5 hash to sort names [pid 5071] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./176/binderfs") = 0 [pid 5071] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7211] <... mount resumed>) = 0 [pid 7211] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 239.038260][ T7209] 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 [ 239.044966][ T7210] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 239.070571][ T7211] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.084252][ T7211] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 239.094761][ T7208] REISERFS (device loop0): checking transaction log (loop0) [pid 7211] chdir("./file0") = 0 [pid 7211] ioctl(4, LOOP_CLR_FD) = 0 [pid 7211] close(4) = 0 [pid 7208] <... mount resumed>) = 0 [pid 7211] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7211] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7208] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7211] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7211] mount(NULL, "./bus", NULL, 0, NULL [pid 7208] <... openat resumed>) = 3 [pid 7211] <... mount resumed>) = -1 ENOENT (No such file or directory) [ 239.103865][ T7208] REISERFS (device loop0): Using r5 hash to sort names [ 239.111559][ T7208] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.124629][ T7208] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 239.134585][ T7209] REISERFS (device loop3): checking transaction log (loop3) [ 239.142690][ T7210] REISERFS (device loop1): using ordered data mode [pid 7211] exit_group(0) = ? [pid 7208] chdir("./file0" [pid 7216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7211] +++ exited with 0 +++ [pid 7208] <... chdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7211, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} --- [pid 5073] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 239.149820][ T7210] reiserfs: using flush barriers [ 239.153425][ T7209] REISERFS (device loop3): Using r5 hash to sort names [ 239.161808][ T7210] 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 [ 239.178887][ T7210] REISERFS (device loop1): checking transaction log (loop1) [ 239.182622][ T7209] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5073] fstat(3, [pid 7208] ioctl(4, LOOP_CLR_FD [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./178/binderfs") = 0 [pid 5073] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7208] <... ioctl resumed>) = 0 [pid 7208] close(4) = 0 [pid 7208] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7208] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7208] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7208] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7208] exit_group(0) = ? [pid 7208] +++ exited with 0 +++ [ 239.187767][ T7210] REISERFS (device loop1): Using r5 hash to sort names [ 239.206432][ T7210] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.220541][ T7210] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7208, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5069] umount2("./172", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7210] <... mount resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./172", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7210] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... openat resumed>) = 3 [pid 7210] <... openat resumed>) = 3 [pid 7209] <... mount resumed>) = 0 [pid 5069] fstat(3, [pid 7210] chdir("./file0" [pid 7209] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7210] <... chdir resumed>) = 0 [pid 7209] <... openat resumed>) = 3 [pid 5069] getdents64(3, [pid 7210] ioctl(4, LOOP_CLR_FD [pid 7209] chdir("./file0" [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7210] <... ioctl resumed>) = 0 [pid 7209] <... chdir resumed>) = 0 [pid 5069] umount2("./172/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7210] close(4 [pid 7209] ioctl(4, LOOP_CLR_FD [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7210] <... close resumed>) = 0 [pid 7209] <... ioctl resumed>) = 0 [pid 5069] lstat("./172/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./172/binderfs" [pid 7210] mkdir(NULL, 000 [pid 7209] close(4 [pid 5069] <... unlink resumed>) = 0 [pid 7210] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7209] <... close resumed>) = 0 [pid 5069] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7210] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7209] mkdir(NULL, 000 [pid 7210] <... openat resumed>) = 4 [pid 7210] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7209] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7210] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7209] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7210] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7209] <... openat resumed>) = 4 [pid 7210] exit_group(0 [pid 7209] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7210] <... exit_group resumed>) = ? [pid 7209] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7210] +++ exited with 0 +++ [pid 7209] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7210, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=19 /* 0.19 s */} --- [pid 7209] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7209] exit_group(0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7209] <... exit_group resumed>) = ? [pid 5070] openat(AT_FDCWD, "./175", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7209] +++ exited with 0 +++ [pid 5070] fstat(3, [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7209, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=17 /* 0.17 s */} --- [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 239.287339][ T7209] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./175/binderfs", [pid 7216] <... write resumed>) = 4194304 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] unlink("./175/binderfs" [pid 5072] <... openat resumed>) = 3 [pid 5070] <... unlink resumed>) = 0 [pid 5072] fstat(3, [pid 5070] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] lstat("./176/file0", [pid 5072] unlink("./176/binderfs") = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7216] munmap(0x7f8a1b2e3000, 4194304 [pid 5071] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7216] <... munmap resumed>) = 0 [pid 7216] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] <... umount2 resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7216] <... openat resumed>) = 4 [pid 5071] <... openat resumed>) = 4 [pid 7216] ioctl(4, LOOP_SET_FD, 3 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(4, [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] lstat("./178/file0", [pid 5071] getdents64(4, [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] rmdir("./176/file0" [pid 5073] <... openat resumed>) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 5073] fstat(4, [pid 5071] getdents64(3, [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] getdents64(4, [pid 5071] close(3 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] <... close resumed>) = 0 [pid 5073] getdents64(4, [pid 5071] rmdir("./176" [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] <... rmdir resumed>) = 0 [pid 5073] close(4 [pid 5071] mkdir("./177", 0777 [pid 5073] <... close resumed>) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5073] rmdir("./178/file0" [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] <... rmdir resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [pid 5073] getdents64(3, [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5071] close(3 [pid 5073] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5073] rmdir("./178" [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./179", 0777 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7218 [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", 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=0x555556cad5d0) = 7219 ./strace-static-x86_64: Process 7218 attached [pid 7218] chdir("./177") = 0 [pid 7218] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7218] setpgid(0, 0) = 0 [pid 7218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7216] <... ioctl resumed>) = 0 [pid 7218] write(3, "1000", 4) = 4 [pid 7218] close(3) = 0 [pid 7218] symlink("/dev/binderfs", "./binderfs" [pid 7216] close(3 [pid 7218] <... symlink resumed>) = 0 [pid 7218] memfd_create("syzkaller", 0./strace-static-x86_64: Process 7219 attached ) = 3 [pid 7216] <... close resumed>) = 0 [pid 7219] chdir("./179" [pid 7218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7216] mkdir("./file0", 0777 [pid 7218] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7219] <... chdir resumed>) = 0 [pid 7216] <... mkdir resumed>) = 0 [pid 7219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7216] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7219] <... prctl resumed>) = 0 [ 239.399246][ T7216] loop5: detected capacity change from 0 to 8192 [pid 7219] setpgid(0, 0) = 0 [pid 7219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7219] write(3, "1000", 4) = 4 [pid 7219] close(3) = 0 [pid 7219] symlink("/dev/binderfs", "./binderfs" [pid 5069] <... umount2 resumed>) = 0 [pid 7219] <... symlink resumed>) = 0 [pid 7219] memfd_create("syzkaller", 0) = 3 [pid 5069] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 7219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7219] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5070] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./175/file0", [pid 5069] lstat("./172/file0", [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 5070] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./172/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./172/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5069] <... openat resumed>) = 4 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(4, [pid 5070] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [ 239.467562][ T7216] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.506583][ T7216] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] getdents64(4, [pid 5069] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./172/file0") = 0 [pid 5069] getdents64(3, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7219] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 239.516137][ T7216] REISERFS (device loop5): using ordered data mode [ 239.523900][ T7216] reiserfs: using flush barriers [ 239.536605][ T7216] 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 7218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(4 [pid 5069] close(3) = 0 [pid 5069] rmdir("./172" [pid 5070] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5069] mkdir("./173", 0777 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./175/file0" [pid 5069] <... mkdir resumed>) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(3 [pid 5072] lstat("./176/file0", [pid 5070] getdents64(3, [pid 5069] <... close resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7221 [pid 5072] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 239.561907][ T7216] REISERFS (device loop5): checking transaction log (loop5) [pid 5070] <... close resumed>) = 0 ./strace-static-x86_64: Process 7221 attached [pid 5072] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] rmdir("./175" [pid 7221] chdir("./173" [pid 5072] <... openat resumed>) = 4 [pid 7221] <... chdir resumed>) = 0 [pid 5072] fstat(4, [pid 5070] <... rmdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] getdents64(4, [pid 7221] setpgid(0, 0 [pid 5070] mkdir("./176", 0777 [pid 7221] <... setpgid resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 5070] <... mkdir resumed>) = 0 [pid 7221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7221] <... openat resumed>) = 3 [pid 5072] close(4 [pid 7221] write(3, "1000", 4 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5072] <... close resumed>) = 0 [pid 7221] <... write resumed>) = 4 [pid 5072] rmdir("./176/file0" [pid 5070] <... openat resumed>) = 3 [pid 7221] close(3) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7221] symlink("/dev/binderfs", "./binderfs" [pid 5072] getdents64(3, [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7221] <... symlink resumed>) = 0 [pid 5072] close(3 [pid 5070] close(3 [pid 7221] memfd_create("syzkaller", 0 [pid 5072] <... close resumed>) = 0 [pid 7221] <... memfd_create resumed>) = 3 [pid 7218] <... write resumed>) = 4194304 [pid 5070] <... close resumed>) = 0 [pid 7221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7218] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] rmdir("./176" [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7221] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7218] <... munmap resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] mkdir("./177", 0777 [pid 7218] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7222 ./strace-static-x86_64: Process 7222 attached [ 239.594610][ T7216] REISERFS (device loop5): Using r5 hash to sort names [ 239.615675][ T7216] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.629619][ T7216] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 7222] chdir("./176" [pid 5072] <... mkdir resumed>) = 0 [pid 7222] <... chdir resumed>) = 0 [pid 7218] <... openat resumed>) = 4 [pid 7218] ioctl(4, LOOP_SET_FD, 3 [pid 7222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7222] setpgid(0, 0) = 0 [pid 7222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7222] write(3, "1000", 4) = 4 [pid 7222] close(3) = 0 [pid 7222] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7222] memfd_create("syzkaller", 0 [pid 7219] <... write resumed>) = 4194304 [pid 7222] <... memfd_create resumed>) = 3 [pid 7219] munmap(0x7f8a1b2e3000, 4194304 [pid 7218] <... ioctl resumed>) = 0 [pid 7222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5072] close(3 [pid 7218] close(3 [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7218] <... close resumed>) = 0 [pid 7219] <... munmap resumed>) = 0 [pid 7218] mkdir("./file0", 0777 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7223 [pid 7218] <... mkdir resumed>) = 0 ./strace-static-x86_64: Process 7223 attached [pid 7219] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7218] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7223] chdir("./177" [pid 7219] <... openat resumed>) = 4 [ 239.648867][ T7218] loop2: detected capacity change from 0 to 8192 [ 239.683494][ T7219] loop4: detected capacity change from 0 to 8192 [pid 7219] ioctl(4, LOOP_SET_FD, 3 [pid 7223] <... chdir resumed>) = 0 [pid 7221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7216] <... mount resumed>) = 0 [pid 7223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7219] <... ioctl resumed>) = 0 [pid 7219] close(3) = 0 [pid 7219] mkdir("./file0", 0777) = 0 [pid 7219] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7223] <... prctl resumed>) = 0 [pid 7216] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7223] setpgid(0, 0 [pid 7216] <... openat resumed>) = 3 [pid 7223] <... setpgid resumed>) = 0 [pid 7216] chdir("./file0" [pid 7223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7216] <... chdir resumed>) = 0 [pid 7216] ioctl(4, LOOP_CLR_FD [pid 7223] <... openat resumed>) = 3 [pid 7216] <... ioctl resumed>) = 0 [pid 7223] write(3, "1000", 4 [pid 7216] close(4) = 0 [pid 7223] <... write resumed>) = 4 [pid 7216] mkdir(NULL, 000 [pid 7223] close(3 [pid 7216] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7223] <... close resumed>) = 0 [pid 7216] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7223] symlink("/dev/binderfs", "./binderfs" [pid 7216] <... openat resumed>) = 4 [pid 7223] <... symlink resumed>) = 0 [pid 7222] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 239.690816][ T7218] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.710254][ T7218] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 239.725045][ T7219] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.741113][ T7218] REISERFS (device loop2): using ordered data mode [pid 7216] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7223] memfd_create("syzkaller", 0 [pid 7216] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7223] <... memfd_create resumed>) = 3 [pid 7216] mount(NULL, "./bus", NULL, 0, NULL [pid 7223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7216] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7223] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7216] exit_group(0) = ? [pid 7216] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7216, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5074] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 7221] <... write resumed>) = 4194304 [pid 7221] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7221] <... munmap resumed>) = 0 [ 239.748390][ T7218] reiserfs: using flush barriers [ 239.756162][ T7218] 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 [ 239.787289][ T7219] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5074] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7221] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7221] <... openat resumed>) = 4 [pid 5074] lstat("./180/binderfs", [pid 7221] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7221] <... ioctl resumed>) = 0 [pid 5074] unlink("./180/binderfs" [pid 7221] close(3 [pid 5074] <... unlink resumed>) = 0 [ 239.797900][ T7219] REISERFS (device loop4): using ordered data mode [ 239.804992][ T7219] reiserfs: using flush barriers [ 239.812658][ T7219] 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 [ 239.829408][ T7221] loop0: detected capacity change from 0 to 8192 [ 239.836779][ T7218] REISERFS (device loop2): checking transaction log (loop2) [pid 7221] <... close resumed>) = 0 [pid 5074] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7223] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7221] mkdir("./file0", 0777) = 0 [pid 7221] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7218] <... mount resumed>) = 0 [pid 7222] <... write resumed>) = 4194304 [pid 7218] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7222] munmap(0x7f8a1b2e3000, 4194304) = 0 [ 239.845567][ T7219] REISERFS (device loop4): checking transaction log (loop4) [ 239.853852][ T7218] REISERFS (device loop2): Using r5 hash to sort names [ 239.863775][ T7218] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.877172][ T7218] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 239.889792][ T7219] REISERFS (device loop4): Using r5 hash to sort names [pid 7222] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7222] ioctl(4, LOOP_SET_FD, 3 [pid 7218] <... openat resumed>) = 3 [pid 7218] chdir("./file0") = 0 [ 239.897861][ T7221] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 239.909945][ T7222] loop1: detected capacity change from 0 to 8192 [ 239.911770][ T7219] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 239.930186][ T7221] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 239.940127][ T7221] REISERFS (device loop0): using ordered data mode [pid 7222] <... ioctl resumed>) = 0 [pid 7222] close(3) = 0 [pid 7222] mkdir("./file0", 0777 [pid 7218] ioctl(4, LOOP_CLR_FD [pid 7222] <... mkdir resumed>) = 0 [pid 7222] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7218] <... ioctl resumed>) = 0 [pid 7218] close(4) = 0 [pid 7219] <... mount resumed>) = 0 [pid 7218] mkdir(NULL, 000 [pid 7219] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7219] chdir("./file0") = 0 [pid 7219] ioctl(4, LOOP_CLR_FD) = 0 [pid 7219] close(4) = 0 [pid 7219] mkdir(NULL, 000 [pid 7218] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7218] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7219] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7218] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7218] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7219] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7218] exit_group(0 [pid 7219] <... openat resumed>) = 4 [pid 7218] <... exit_group resumed>) = ? [pid 7218] +++ exited with 0 +++ [ 239.947333][ T7219] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 239.957093][ T7221] reiserfs: using flush barriers [pid 7219] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7219] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7218, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=9 /* 0.09 s */} --- [pid 7219] exit_group(0) = ? [pid 7219] +++ exited with 0 +++ [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./180/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./180/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, [pid 5071] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7219, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./180/file0") = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 5071] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... restart_syscall resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [ 239.987488][ T7221] 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 [ 240.005002][ T7222] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.031606][ T7221] REISERFS (device loop0): checking transaction log (loop0) [ 240.039526][ T7222] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [pid 5071] fstat(3, [pid 5074] rmdir("./180") = 0 [pid 5074] mkdir("./181", 0777) = 0 [pid 7223] <... write resumed>) = 4194304 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7223] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... openat resumed>) = 3 [pid 5073] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] getdents64(3, [pid 7223] <... munmap resumed>) = 0 [pid 7223] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7223] ioctl(4, LOOP_SET_FD, 3 [pid 7221] <... mount resumed>) = 0 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] close(3 [pid 5073] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 240.050781][ T7221] REISERFS (device loop0): Using r5 hash to sort names [ 240.057971][ T7222] REISERFS (device loop1): using ordered data mode [ 240.061480][ T7221] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.065984][ T7222] reiserfs: using flush barriers [ 240.077772][ T7221] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 240.090675][ T7223] loop3: detected capacity change from 0 to 8192 [pid 5074] <... close resumed>) = 0 [pid 5073] fstat(3, [pid 5071] lstat("./177/binderfs", [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5073] <... 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 5073] getdents64(3, [pid 5071] unlink("./177/binderfs" [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7228 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5071] <... unlink resumed>) = 0 [pid 5073] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./179/binderfs") = 0 [pid 5073] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7223] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 7228 attached [pid 7223] close(3 [pid 7221] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7228] chdir("./181" [pid 7223] <... close resumed>) = 0 [pid 7221] <... openat resumed>) = 3 [pid 7228] <... chdir resumed>) = 0 [pid 7223] mkdir("./file0", 0777 [pid 7221] chdir("./file0" [pid 7228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7228] setpgid(0, 0) = 0 [pid 7223] <... mkdir resumed>) = 0 [pid 7221] <... chdir resumed>) = 0 [ 240.098161][ T7222] 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 [ 240.115609][ T7222] REISERFS (device loop1): checking transaction log (loop1) [ 240.124920][ T7222] REISERFS (device loop1): Using r5 hash to sort names [ 240.135035][ T7222] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7223] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7221] ioctl(4, LOOP_CLR_FD [pid 7222] <... mount resumed>) = 0 [pid 7222] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7228] <... openat resumed>) = 3 [pid 7221] <... ioctl resumed>) = 0 [pid 7228] write(3, "1000", 4 [pid 7221] close(4) = 0 [pid 7228] <... write resumed>) = 4 [pid 7228] close(3 [pid 7221] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7228] <... close resumed>) = 0 [pid 7221] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7228] symlink("/dev/binderfs", "./binderfs" [pid 7221] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7222] <... openat resumed>) = 3 [pid 7228] <... symlink resumed>) = 0 [pid 7228] memfd_create("syzkaller", 0 [pid 7221] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7228] <... memfd_create resumed>) = 3 [pid 7228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7221] mount(NULL, "./bus", NULL, 0, NULL [pid 7222] chdir("./file0" [pid 7228] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7221] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7222] <... chdir resumed>) = 0 [pid 7222] ioctl(4, LOOP_CLR_FD) = 0 [pid 7222] close(4 [pid 7221] exit_group(0) = ? [pid 7222] <... close resumed>) = 0 [pid 7222] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7222] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7221] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7221, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=12 /* 0.12 s */} --- [pid 7222] <... openat resumed>) = 4 [pid 5069] umount2("./173", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./173", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7222] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5069] <... openat resumed>) = 3 [pid 7222] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5069] fstat(3, [pid 7222] mount(NULL, "./bus", NULL, 0, NULL [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 7222] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./173/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./173/binderfs", [pid 7222] exit_group(0 [ 240.149314][ T7222] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 240.192658][ T7223] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7222] <... exit_group resumed>) = ? [pid 5069] unlink("./173/binderfs" [pid 7222] +++ exited with 0 +++ [pid 5069] <... unlink resumed>) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7222, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} --- [pid 5070] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./176", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./176/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] unlink("./176/binderfs" [pid 5073] <... umount2 resumed>) = 0 [pid 5073] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./179/file0", [pid 5070] <... unlink resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./179/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] close(4) = 0 [pid 5073] rmdir("./179/file0" [pid 5070] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... rmdir resumed>) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3) = 0 [pid 5073] rmdir("./179") = 0 [pid 5073] mkdir("./180", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 5071] <... umount2 resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7230 [pid 5071] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./177/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7230 attached ) = -1 EINVAL (Invalid argument) [pid 7230] chdir("./180" [pid 5071] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7230] <... chdir resumed>) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./177/file0") = 0 [pid 7230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] getdents64(3, [pid 7230] <... prctl resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7230] setpgid(0, 0 [pid 5071] close(3 [pid 7230] <... setpgid resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 7230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5071] rmdir("./177" [pid 7230] <... openat resumed>) = 3 [pid 5071] <... rmdir resumed>) = 0 [pid 7230] write(3, "1000", 4 [pid 5071] mkdir("./178", 0777 [pid 7230] <... write resumed>) = 4 [pid 5071] <... mkdir resumed>) = 0 [pid 7230] close(3 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7230] <... close resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [ 240.266346][ T7223] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 240.276110][ T7223] REISERFS (device loop3): using ordered data mode [ 240.283082][ T7223] reiserfs: using flush barriers [ 240.290328][ T7223] 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 7230] symlink("/dev/binderfs", "./binderfs" [pid 5071] ioctl(3, LOOP_CLR_FD [pid 7230] <... symlink resumed>) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7230] memfd_create("syzkaller", 0 [pid 5071] close(3 [pid 7230] <... memfd_create resumed>) = 3 [pid 7228] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7230] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7230] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7231 ./strace-static-x86_64: Process 7231 attached [ 240.328007][ T7223] REISERFS (device loop3): checking transaction log (loop3) [ 240.346146][ T7223] REISERFS (device loop3): Using r5 hash to sort names [pid 7231] chdir("./178") = 0 [pid 7231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7231] setpgid(0, 0) = 0 [pid 7231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7231] write(3, "1000", 4) = 4 [ 240.366522][ T7223] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7231] close(3) = 0 [pid 7231] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7231] memfd_create("syzkaller", 0) = 3 [pid 7231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5070] <... umount2 resumed>) = 0 [pid 7228] <... write resumed>) = 4194304 [pid 5070] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7230] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7228] munmap(0x7f8a1b2e3000, 4194304 [pid 7223] <... mount resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7228] <... munmap resumed>) = 0 [pid 7223] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] lstat("./176/file0", [pid 7228] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7223] <... openat resumed>) = 3 [pid 7228] <... openat resumed>) = 4 [pid 7223] chdir("./file0" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7228] ioctl(4, LOOP_SET_FD, 3 [pid 7223] <... chdir resumed>) = 0 [ 240.405901][ T7223] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5070] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7228] <... ioctl resumed>) = 0 [pid 7223] ioctl(4, LOOP_CLR_FD [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7228] close(3 [pid 7223] <... ioctl resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7228] <... close resumed>) = 0 [pid 7223] close(4 [pid 7228] mkdir("./file0", 0777 [pid 7223] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 4 [pid 5070] fstat(4, [pid 5069] <... umount2 resumed>) = 0 [pid 7228] <... mkdir resumed>) = 0 [pid 7223] mkdir(NULL, 000 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7228] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7223] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5070] getdents64(4, [pid 5069] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7223] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7223] <... openat resumed>) = 4 [pid 5070] getdents64(4, [pid 7223] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] lstat("./173/file0", [pid 7223] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5070] close(4 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7223] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] <... close resumed>) = 0 [pid 5069] umount2("./173/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7223] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] rmdir("./176/file0" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7223] exit_group(0 [pid 5069] openat(AT_FDCWD, "./173/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7223] <... exit_group resumed>) = ? [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... openat resumed>) = 4 [pid 5069] fstat(4, [pid 7223] +++ exited with 0 +++ [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7223, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} --- [pid 5070] getdents64(3, [pid 5069] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] close(3 [pid 5069] getdents64(4, [pid 5072] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [ 240.456766][ T7228] loop5: detected capacity change from 0 to 8192 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] close(4 [pid 5072] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... close resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5069] rmdir("./173/file0" [pid 5072] fstat(3, [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] getdents64(3, [pid 5072] getdents64(3, [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] close(3 [pid 5072] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] rmdir("./173" [pid 5072] lstat("./177/binderfs", [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] rmdir("./176" [pid 5069] mkdir("./174", 0777 [pid 5072] unlink("./177/binderfs" [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5072] <... unlink resumed>) = 0 [pid 5070] mkdir("./177", 0777 [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... openat resumed>) = 3 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7230] <... write resumed>) = 4194304 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [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 [pid 7230] munmap(0x7f8a1b2e3000, 4194304 [pid 5070] <... openat resumed>) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7233 [pid 7230] <... munmap resumed>) = 0 [pid 5070] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 7233 attached [pid 7233] chdir("./174") = 0 [pid 7233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [ 240.506066][ T7228] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.529629][ T7228] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 240.539888][ T7228] REISERFS (device loop5): using ordered data mode [ 240.547622][ T7228] reiserfs: using flush barriers [pid 7233] setpgid(0, 0) = 0 [pid 7230] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7230] <... openat resumed>) = 4 [pid 5070] close(3 [pid 7233] <... openat resumed>) = 3 [pid 7231] <... write resumed>) = 4194304 [pid 7230] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... close resumed>) = 0 [pid 7233] write(3, "1000", 4 [pid 7231] munmap(0x7f8a1b2e3000, 4194304 [pid 7233] <... write resumed>) = 4 [pid 7233] close(3) = 0 [pid 7233] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7233] memfd_create("syzkaller", 0) = 3 [ 240.554749][ T7228] 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 [ 240.590435][ T7230] loop4: detected capacity change from 0 to 8192 [ 240.597942][ T7228] REISERFS (device loop5): checking transaction log (loop5) [pid 7233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7231] <... munmap resumed>) = 0 [pid 7230] <... ioctl resumed>) = 0 [pid 5072] <... umount2 resumed>) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7233] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7231] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7230] close(3) = 0 [pid 7230] mkdir("./file0", 0777) = 0 [pid 7230] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7231] <... openat resumed>) = 4 ./strace-static-x86_64: Process 7234 attached [pid 7231] ioctl(4, LOOP_SET_FD, 3 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7234 [pid 7234] chdir("./177") = 0 [pid 7234] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7234] setpgid(0, 0) = 0 [pid 7234] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7234] write(3, "1000", 4) = 4 [pid 7234] close(3) = 0 [pid 7234] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7234] memfd_create("syzkaller", 0) = 3 [pid 7234] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7234] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7231] <... ioctl resumed>) = 0 [pid 7231] close(3) = 0 [pid 7231] mkdir("./file0", 0777) = 0 [pid 7231] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./177/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 240.609454][ T7231] loop2: detected capacity change from 0 to 8192 [ 240.616694][ T7230] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.644263][ T7228] REISERFS (device loop5): Using r5 hash to sort names [pid 5072] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./177/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./177") = 0 [pid 5072] mkdir("./178", 0777 [pid 7234] <... write resumed>) = 4194304 [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7237 [pid 7234] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7234] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7234] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7234] close(3) = 0 [pid 7234] mkdir("./file0", 0777) = 0 [ 240.690050][ T7231] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 240.692748][ T7230] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 240.713648][ T7228] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.725725][ T7234] loop1: detected capacity change from 0 to 8192 [pid 7234] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, ""./strace-static-x86_64: Process 7237 attached [pid 7228] <... mount resumed>) = 0 [pid 7228] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7228] chdir("./file0") = 0 [pid 7228] ioctl(4, LOOP_CLR_FD) = 0 [pid 7228] close(4) = 0 [pid 7228] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7228] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7228] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7228] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7228] exit_group(0) = ? [pid 7228] +++ exited with 0 +++ [pid 7233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7228, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5074] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7237] chdir("./178" [pid 5074] unlink("./181/binderfs") = 0 [pid 5074] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7237] <... chdir resumed>) = 0 [pid 7237] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7237] setpgid(0, 0) = 0 [pid 7237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 240.735155][ T7230] REISERFS (device loop4): using ordered data mode [ 240.741886][ T7231] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 240.741983][ T7231] REISERFS (device loop2): using ordered data mode [ 240.751771][ T7228] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 240.770117][ T7234] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7237] write(3, "1000", 4) = 4 [pid 7237] close(3) = 0 [pid 7237] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7237] memfd_create("syzkaller", 0) = 3 [pid 7237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 240.810334][ T7234] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 240.820073][ T7234] REISERFS (device loop1): using ordered data mode [ 240.826984][ T7234] reiserfs: using flush barriers [ 240.833112][ T7234] 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 [ 240.850803][ T7234] REISERFS (device loop1): checking transaction log (loop1) [ 240.858690][ T7230] reiserfs: using flush barriers [ 240.873842][ T7234] REISERFS (device loop1): Using r5 hash to sort names [ 240.875157][ T7230] 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 [ 240.897829][ T7230] REISERFS (device loop4): checking transaction log (loop4) [ 240.905366][ T7231] reiserfs: using flush barriers [ 240.911531][ T7230] REISERFS (device loop4): Using r5 hash to sort names [ 240.919881][ T7230] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.921712][ T7234] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 240.932938][ T7231] 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 7237] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7233] <... write resumed>) = 4194304 [pid 7230] <... mount resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 7230] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7230] <... openat resumed>) = 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7230] chdir("./file0" [pid 7233] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7230] <... chdir resumed>) = 0 [ 240.961679][ T7230] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 240.978781][ T7231] REISERFS (device loop2): checking transaction log (loop2) [ 240.987723][ T7231] REISERFS (device loop2): Using r5 hash to sort names [ 240.994955][ T7231] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7230] ioctl(4, LOOP_CLR_FD [pid 5074] lstat("./181/file0", [pid 7233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7230] <... ioctl resumed>) = 0 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7231] <... mount resumed>) = 0 [pid 7233] ioctl(4, LOOP_SET_FD, 3 [pid 7234] <... mount resumed>) = 0 [pid 7231] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7230] close(4 [pid 5074] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7234] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7231] <... openat resumed>) = 3 [pid 7230] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7234] <... openat resumed>) = 3 [pid 7231] chdir("./file0" [pid 7230] mkdir(NULL, 000 [pid 5074] openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7237] <... write resumed>) = 4194304 [pid 7234] chdir("./file0" [pid 7233] <... ioctl resumed>) = 0 [pid 7231] <... chdir resumed>) = 0 [pid 7230] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] <... openat resumed>) = 4 [pid 7237] munmap(0x7f8a1b2e3000, 4194304 [pid 7234] <... chdir resumed>) = 0 [pid 7233] close(3 [pid 7231] ioctl(4, LOOP_CLR_FD [pid 7230] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] fstat(4, [pid 7237] <... munmap resumed>) = 0 [pid 7234] ioctl(4, LOOP_CLR_FD [pid 7233] <... close resumed>) = 0 [pid 7231] <... ioctl resumed>) = 0 [pid 7230] <... openat resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7237] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7234] <... ioctl resumed>) = 0 [pid 7233] mkdir("./file0", 0777 [ 241.008401][ T7231] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 241.018748][ T7234] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 241.021353][ T7233] loop0: detected capacity change from 0 to 8192 [pid 7231] close(4 [pid 7230] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] getdents64(4, [pid 7237] <... openat resumed>) = 4 [pid 7234] close(4 [pid 7233] <... mkdir resumed>) = 0 [pid 7231] <... close resumed>) = 0 [pid 7230] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7237] ioctl(4, LOOP_SET_FD, 3 [pid 7234] <... close resumed>) = 0 [pid 7233] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7231] mkdir(NULL, 000 [pid 7230] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] getdents64(4, [pid 7231] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7234] mkdir(NULL, 000 [pid 7230] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7234] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] close(4 [pid 7237] <... ioctl resumed>) = 0 [pid 7234] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7231] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7230] exit_group(0 [pid 5074] <... close resumed>) = 0 [pid 7237] close(3 [pid 7234] <... openat resumed>) = 4 [pid 7230] <... exit_group resumed>) = ? [pid 5074] rmdir("./181/file0" [pid 7230] +++ exited with 0 +++ [pid 7237] <... close resumed>) = 0 [pid 7234] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7231] <... openat resumed>) = 4 [pid 5074] <... rmdir resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7230, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} --- [pid 7237] mkdir("./file0", 0777 [pid 7234] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7231] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] getdents64(3, [pid 5073] restart_syscall(<... resuming interrupted clone ...> [pid 7237] <... mkdir resumed>) = 0 [pid 7234] mount(NULL, "./bus", NULL, 0, NULL [pid 7231] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] <... restart_syscall resumed>) = 0 [pid 7237] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7234] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7231] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] close(3 [pid 7234] exit_group(0 [pid 7231] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] <... close resumed>) = 0 [pid 5073] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./180", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./180/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./180/binderfs") = 0 [pid 5073] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7234] <... exit_group resumed>) = ? [pid 7231] exit_group(0 [ 241.086785][ T7237] loop3: detected capacity change from 0 to 8192 [ 241.105847][ T7233] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.119814][ T7237] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5074] rmdir("./181" [pid 7234] +++ exited with 0 +++ [pid 7231] <... exit_group resumed>) = ? [pid 5074] <... rmdir resumed>) = 0 [pid 7231] +++ exited with 0 +++ [pid 5074] mkdir("./182", 0777 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7234, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5074] <... mkdir resumed>) = 0 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7231, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 3 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5071] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 5071] <... openat resumed>) = 3 [pid 5070] <... openat resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5071] fstat(3, [pid 5074] 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 5070] fstat(3, [pid 5071] getdents64(3, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7241 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] getdents64(3, ./strace-static-x86_64: Process 7241 attached [pid 7241] chdir("./182") = 0 [pid 7241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7241] setpgid(0, 0) = 0 [pid 7241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7241] write(3, "1000", 4) = 4 [pid 7241] close(3 [pid 5071] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7241] <... close resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] lstat("./178/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] lstat("./177/binderfs", [pid 5071] unlink("./178/binderfs" [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7241] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] unlink("./177/binderfs" [pid 7241] memfd_create("syzkaller", 0) = 3 [pid 7241] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... unlink resumed>) = 0 [pid 5071] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7241] <... mmap resumed>) = 0x7f8a1b2e3000 [ 241.121048][ T7233] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 241.151793][ T7233] REISERFS (device loop0): using ordered data mode [ 241.159450][ T7233] reiserfs: using flush barriers [pid 5070] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 241.185457][ T7233] 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 [ 241.216391][ T7237] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 241.226188][ T7237] REISERFS (device loop3): using ordered data mode [ 241.232796][ T7237] reiserfs: using flush barriers [ 241.241175][ T7233] REISERFS (device loop0): checking transaction log (loop0) [ 241.248763][ T7237] 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 [ 241.267395][ T7233] REISERFS (device loop0): Using r5 hash to sort names [ 241.275151][ T7233] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7241] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7233] <... mount resumed>) = 0 [pid 5073] <... umount2 resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7233] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] lstat("./177/file0", [pid 7233] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7233] chdir("./file0" [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7233] <... chdir resumed>) = 0 [pid 5073] lstat("./180/file0", [pid 5070] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7233] ioctl(4, LOOP_CLR_FD [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7233] <... ioctl resumed>) = 0 [pid 5073] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./177/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7233] close(4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7233] <... close resumed>) = 0 [pid 5073] openat(AT_FDCWD, "./180/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... openat resumed>) = 4 [pid 7233] mkdir(NULL, 000 [pid 5073] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = 0 [pid 5070] fstat(4, [pid 7233] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] fstat(4, [pid 7233] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7233] <... openat resumed>) = 4 [pid 5073] getdents64(4, [pid 5070] getdents64(4, [pid 7233] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [ 241.288193][ T7237] REISERFS (device loop3): checking transaction log (loop3) [ 241.297420][ T7237] REISERFS (device loop3): Using r5 hash to sort names [ 241.304513][ T7237] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 241.326655][ T7233] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7233] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] getdents64(4, [pid 5071] lstat("./178/file0", [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7233] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] getdents64(4, [pid 7241] <... write resumed>) = 4194304 [pid 7233] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] close(4 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7241] munmap(0x7f8a1b2e3000, 4194304 [pid 7233] exit_group(0 [pid 5073] <... close resumed>) = 0 [pid 5071] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] close(4 [pid 7233] <... exit_group resumed>) = ? [pid 5073] rmdir("./180/file0" [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7241] <... munmap resumed>) = 0 [pid 7233] +++ exited with 0 +++ [pid 5073] <... rmdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7233, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=11 /* 0.11 s */} --- [pid 7241] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5073] getdents64(3, [pid 5071] <... openat resumed>) = 4 [pid 7241] <... openat resumed>) = 4 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] fstat(4, [pid 5070] rmdir("./177/file0" [pid 7241] ioctl(4, LOOP_SET_FD, 3 [pid 5073] close(3 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] <... rmdir resumed>) = 0 [pid 5073] rmdir("./180" [pid 5071] getdents64(4, [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./181", 0777) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 7241] <... ioctl resumed>) = 0 [pid 7237] <... mount resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, [pid 5069] umount2("./174", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7241] close(3 [pid 7237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] getdents64(4, [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7241] <... close resumed>) = 0 [pid 7237] <... openat resumed>) = 3 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] openat(AT_FDCWD, "./174", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7241] mkdir("./file0", 0777 [pid 7237] chdir("./file0" [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7242 [pid 5071] close(4 [pid 5070] <... close resumed>) = 0 [pid 5069] <... openat resumed>) = 3 ./strace-static-x86_64: Process 7242 attached [pid 7241] <... mkdir resumed>) = 0 [pid 7237] <... chdir resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5070] rmdir("./177" [pid 5069] fstat(3, [pid 7241] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7237] ioctl(4, LOOP_CLR_FD [pid 5071] rmdir("./178/file0" [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7242] chdir("./181" [pid 7237] <... ioctl resumed>) = 0 [pid 7242] <... chdir resumed>) = 0 [pid 7242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7242] setpgid(0, 0) = 0 [pid 7242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 241.371636][ T7237] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 241.391322][ T7241] loop5: detected capacity change from 0 to 8192 [pid 7242] write(3, "1000", 4) = 4 [pid 7242] close(3) = 0 [pid 7242] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7242] memfd_create("syzkaller", 0) = 3 [pid 7242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7237] close(4 [pid 5071] <... rmdir resumed>) = 0 [pid 5070] mkdir("./178", 0777 [pid 5069] getdents64(3, [pid 7237] <... close resumed>) = 0 [pid 5071] getdents64(3, [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7237] mkdir(NULL, 000 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] umount2("./174/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7237] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] close(3 [pid 7237] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... close resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7237] <... openat resumed>) = 4 [pid 5071] rmdir("./178" [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] lstat("./174/binderfs", [pid 7237] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 5071] <... rmdir 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 5071] mkdir("./179", 0777 [pid 5070] close(3 [pid 5069] unlink("./174/binderfs" [pid 7237] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] <... mkdir resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] <... unlink resumed>) = 0 [pid 7237] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7237] exit_group(0 [pid 5071] <... openat resumed>) = 3 [pid 7237] <... exit_group resumed>) = ? [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7244 ./strace-static-x86_64: Process 7244 attached [pid 7237] +++ exited with 0 +++ [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7244] chdir("./178" [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7237, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 5071] close(3) = 0 [pid 7244] <... chdir resumed>) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7245 [pid 5072] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7244] <... prctl resumed>) = 0 [ 241.416793][ T7241] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.430837][ T7241] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 241.442674][ T7241] REISERFS (device loop5): using ordered data mode [ 241.450043][ T7241] reiserfs: using flush barriers [pid 5072] fstat(3, ./strace-static-x86_64: Process 7245 attached [pid 7244] setpgid(0, 0 [pid 7242] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7245] chdir("./179" [pid 7244] <... setpgid resumed>) = 0 [pid 5072] getdents64(3, [pid 7245] <... chdir resumed>) = 0 [pid 7244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7245] <... prctl resumed>) = 0 [pid 5072] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7245] setpgid(0, 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7245] <... setpgid resumed>) = 0 [pid 5072] lstat("./178/binderfs", [pid 7245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./178/binderfs") = 0 [pid 7245] <... openat resumed>) = 3 [ 241.493437][ T7241] 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 [ 241.517179][ T7241] REISERFS (device loop5): checking transaction log (loop5) [ 241.528215][ T7241] REISERFS (device loop5): Using r5 hash to sort names [pid 7245] write(3, "1000", 4 [pid 7244] <... openat resumed>) = 3 [pid 7242] <... write resumed>) = 4194304 [pid 5072] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7244] write(3, "1000", 4 [pid 7241] <... mount resumed>) = 0 [pid 7241] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7241] chdir("./file0") = 0 [pid 7241] ioctl(4, LOOP_CLR_FD) = 0 [pid 7241] close(4 [pid 7244] <... write resumed>) = 4 [pid 7242] munmap(0x7f8a1b2e3000, 4194304 [pid 7244] close(3) = 0 [pid 7244] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7244] memfd_create("syzkaller", 0 [pid 7241] <... close resumed>) = 0 [pid 7241] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7241] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7244] <... memfd_create resumed>) = 3 [pid 7244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7241] <... openat resumed>) = 4 [pid 7241] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7241] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7241] exit_group(0) = ? [pid 7241] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7241, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- [pid 5074] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./182/binderfs") = 0 [pid 7242] <... munmap resumed>) = 0 [ 241.535345][ T7241] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 241.549928][ T7241] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7245] <... write resumed>) = 4 [pid 7242] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7245] close(3 [pid 7242] <... openat resumed>) = 4 [pid 7245] <... close resumed>) = 0 [pid 7242] ioctl(4, LOOP_SET_FD, 3 [pid 7245] symlink("/dev/binderfs", "./binderfs" [pid 7242] <... ioctl resumed>) = 0 [pid 7245] <... symlink resumed>) = 0 [pid 7242] close(3) = 0 [pid 7245] memfd_create("syzkaller", 0 [pid 7242] mkdir("./file0", 0777) = 0 [pid 7245] <... memfd_create resumed>) = 3 [pid 7245] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7242] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7245] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./174/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./174/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./174/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./174/file0") = 0 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./174") = 0 [pid 5069] mkdir("./175", 0777) = 0 [pid 5069] openat(AT_FDCWD, "/dev/loop0", 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 7247 attached [pid 7247] chdir("./175") = 0 [pid 7247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7247 [pid 7247] <... prctl resumed>) = 0 [pid 7247] setpgid(0, 0) = 0 [pid 7247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7247] write(3, "1000", 4) = 4 [pid 7247] close(3) = 0 [pid 7247] symlink("/dev/binderfs", "./binderfs") = 0 [ 241.607928][ T7242] loop4: detected capacity change from 0 to 8192 [ 241.637082][ T7242] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7247] memfd_create("syzkaller", 0) = 3 [pid 7247] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7244] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./182/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [ 241.697043][ T7242] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 241.707621][ T7242] REISERFS (device loop4): using ordered data mode [ 241.714167][ T7242] reiserfs: using flush barriers [ 241.720649][ T7242] 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 7245] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5072] <... umount2 resumed>) = 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./178/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] getdents64(4, [pid 5072] <... openat resumed>) = 4 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] fstat(4, [pid 5074] close(4 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... close resumed>) = 0 [ 241.769363][ T7242] REISERFS (device loop4): checking transaction log (loop4) [ 241.795239][ T7242] REISERFS (device loop4): Using r5 hash to sort names [pid 5072] getdents64(4, [pid 7247] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4 [pid 5074] rmdir("./182/file0" [pid 5072] <... close resumed>) = 0 [pid 7245] <... write resumed>) = 4194304 [pid 5074] <... rmdir resumed>) = 0 [pid 5072] rmdir("./178/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./178") = 0 [pid 5072] mkdir("./179", 0777) = 0 [pid 7245] munmap(0x7f8a1b2e3000, 4194304 [pid 7242] <... mount resumed>) = 0 [pid 5074] getdents64(3, [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7245] <... munmap resumed>) = 0 [pid 7242] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] <... openat resumed>) = 3 [pid 7245] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7242] <... openat resumed>) = 3 [pid 5074] close(3 [pid 5072] ioctl(3, LOOP_CLR_FD [pid 7245] <... openat resumed>) = 4 [pid 7242] chdir("./file0" [pid 5074] <... close resumed>) = 0 [pid 5072] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7245] ioctl(4, LOOP_SET_FD, 3 [pid 7242] <... chdir resumed>) = 0 [pid 5074] rmdir("./182" [pid 5072] close(3 [pid 7245] <... ioctl resumed>) = 0 [pid 7242] ioctl(4, LOOP_CLR_FD [pid 5074] <... rmdir resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 7245] close(3 [pid 7242] <... ioctl resumed>) = 0 [pid 5074] mkdir("./183", 0777 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 7248 attached [pid 7245] <... close resumed>) = 0 [pid 7244] <... write resumed>) = 4194304 [pid 7242] close(4 [pid 5074] <... mkdir resumed>) = 0 [pid 7245] mkdir("./file0", 0777 [pid 7244] munmap(0x7f8a1b2e3000, 4194304 [pid 7242] <... close resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7248 [pid 7245] <... mkdir resumed>) = 0 [pid 7244] <... munmap resumed>) = 0 [pid 7242] mkdir(NULL, 000 [pid 5074] <... openat resumed>) = 3 [pid 7248] chdir("./179" [pid 7245] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7244] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7242] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] ioctl(3, LOOP_CLR_FD [pid 7242] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7248] <... chdir resumed>) = 0 [pid 7244] <... openat resumed>) = 4 [pid 7242] <... openat resumed>) = 4 [pid 5074] close(3 [pid 7248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7244] ioctl(4, LOOP_SET_FD, 3 [pid 7242] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... close resumed>) = 0 [ 241.816590][ T7242] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 241.832034][ T7242] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 241.850018][ T7245] loop2: detected capacity change from 0 to 8192 [pid 7248] <... prctl resumed>) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7242] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7248] setpgid(0, 0 [pid 7242] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7250 [pid 7248] <... setpgid resumed>) = 0 [pid 7242] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7242] exit_group(0 [pid 7248] <... openat resumed>) = 3 [pid 7242] <... exit_group resumed>) = ? [pid 7248] write(3, "1000", 4 [pid 7242] +++ exited with 0 +++ [pid 7248] <... write resumed>) = 4 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7242, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} --- ./strace-static-x86_64: Process 7250 attached [pid 7248] close(3 [pid 7244] <... ioctl resumed>) = 0 [pid 7250] chdir("./183" [pid 7248] <... close resumed>) = 0 [pid 7244] close(3 [pid 7250] <... chdir resumed>) = 0 [pid 7248] symlink("/dev/binderfs", "./binderfs" [pid 7244] <... close resumed>) = 0 [pid 7250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7248] <... symlink resumed>) = 0 [pid 7244] mkdir("./file0", 0777 [pid 7250] <... prctl resumed>) = 0 [pid 7248] memfd_create("syzkaller", 0 [pid 7250] setpgid(0, 0 [pid 7248] <... memfd_create resumed>) = 3 [pid 7244] <... mkdir resumed>) = 0 [ 241.879892][ T7244] loop1: detected capacity change from 0 to 8192 [ 241.888111][ T7245] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5073] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7250] <... setpgid resumed>) = 0 [pid 7248] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7244] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 7250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7248] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] fstat(3, [pid 7250] <... openat resumed>) = 3 [pid 7250] write(3, "1000", 4) = 4 [pid 7250] close(3) = 0 [pid 7250] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7250] memfd_create("syzkaller", 0) = 3 [ 241.930080][ T7245] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 241.945356][ T7245] REISERFS (device loop2): using ordered data mode [ 241.946819][ T7244] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 241.952211][ T7245] reiserfs: using flush barriers [pid 7250] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./181/binderfs" [pid 7247] <... write resumed>) = 4194304 [pid 5073] <... unlink resumed>) = 0 [pid 7247] munmap(0x7f8a1b2e3000, 4194304 [pid 5073] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7247] <... munmap resumed>) = 0 [ 241.972204][ T7245] 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 [ 242.001050][ T7244] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 242.008021][ T7245] REISERFS (device loop2): checking transaction log (loop2) [ 242.010860][ T7244] REISERFS (device loop1): using ordered data mode [ 242.025824][ T7244] reiserfs: using flush barriers [pid 7247] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 7250] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7248] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [ 242.034334][ T7244] 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 [ 242.050376][ T7245] REISERFS (device loop2): Using r5 hash to sort names [ 242.053985][ T7244] REISERFS (device loop1): checking transaction log (loop1) [ 242.057833][ T7245] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7247] ioctl(4, LOOP_SET_FD, 3 [pid 7245] <... mount resumed>) = 0 [pid 7245] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 242.077617][ T7245] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 242.086067][ T7247] loop0: detected capacity change from 0 to 8192 [ 242.097234][ T7244] REISERFS (device loop1): Using r5 hash to sort names [ 242.104503][ T7244] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7245] chdir("./file0") = 0 [pid 7244] <... mount resumed>) = 0 [pid 7250] <... write resumed>) = 4194304 [pid 7247] <... ioctl resumed>) = 0 [pid 7245] ioctl(4, LOOP_CLR_FD [pid 7250] munmap(0x7f8a1b2e3000, 4194304 [pid 7247] close(3 [pid 7245] <... ioctl resumed>) = 0 [pid 7244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7250] <... munmap resumed>) = 0 [pid 7247] <... close resumed>) = 0 [pid 7245] close(4 [pid 7244] <... openat resumed>) = 3 [pid 7250] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7247] mkdir("./file0", 0777 [pid 7245] <... close resumed>) = 0 [pid 7244] chdir("./file0" [pid 7250] <... openat resumed>) = 4 [pid 7247] <... mkdir resumed>) = 0 [pid 7245] mkdir(NULL, 000 [pid 7244] <... chdir resumed>) = 0 [pid 7250] ioctl(4, LOOP_SET_FD, 3 [pid 7248] <... write resumed>) = 4194304 [ 242.136392][ T7244] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7247] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7245] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7244] ioctl(4, LOOP_CLR_FD [pid 5073] <... umount2 resumed>) = 0 [pid 7248] munmap(0x7f8a1b2e3000, 4194304 [pid 7245] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7244] <... ioctl resumed>) = 0 [pid 7250] <... ioctl resumed>) = 0 [pid 7248] <... munmap resumed>) = 0 [pid 7245] <... openat resumed>) = 4 [pid 7244] close(4 [pid 5073] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7250] close(3 [pid 7248] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7245] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7244] <... close resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7250] <... close resumed>) = 0 [pid 7248] <... openat resumed>) = 4 [pid 7245] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7244] mkdir(NULL, 000 [pid 5073] lstat("./181/file0", [pid 7250] mkdir("./file0", 0777 [pid 7248] ioctl(4, LOOP_SET_FD, 3 [pid 7245] mount(NULL, "./bus", NULL, 0, NULL [pid 7244] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7250] <... mkdir resumed>) = 0 [pid 7248] <... ioctl resumed>) = 0 [pid 7245] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7244] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5073] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7250] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7248] close(3 [pid 7245] exit_group(0 [pid 7244] <... openat resumed>) = 4 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7248] <... close resumed>) = 0 [pid 7245] <... exit_group resumed>) = ? [pid 7244] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7248] mkdir("./file0", 0777 [pid 7245] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7245, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 5071] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./179", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7244] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 4 [pid 5071] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [ 242.184763][ T7250] loop5: detected capacity change from 0 to 8192 [ 242.194113][ T7247] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.208717][ T7248] loop3: detected capacity change from 0 to 8192 [ 242.225412][ T7247] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [pid 7244] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] fstat(4, [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./179/binderfs") = 0 [pid 5071] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7244] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7244] exit_group(0 [pid 5073] getdents64(4, [pid 7244] <... exit_group resumed>) = ? [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7244] +++ exited with 0 +++ [pid 5073] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7244, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=17 /* 0.17 s */} --- [pid 5073] close(4) = 0 [pid 5073] rmdir("./181/file0") = 0 [pid 5073] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] close(3 [pid 5070] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] rmdir("./181" [pid 5070] openat(AT_FDCWD, "./178", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... rmdir resumed>) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5073] mkdir("./182", 0777 [pid 5070] fstat(3, [pid 7248] <... mkdir resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] getdents64(3, [pid 5073] <... openat resumed>) = 3 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] close(3 [pid 5070] lstat("./178/binderfs", [pid 7248] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] unlink("./178/binderfs") = 0 [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7254 [ 242.237667][ T7250] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.244292][ T7247] REISERFS (device loop0): using ordered data mode [ 242.259224][ T7247] reiserfs: using flush barriers [ 242.268658][ T7250] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 242.278614][ T7250] REISERFS (device loop5): using ordered data mode [ 242.287975][ T7248] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.290831][ T7247] 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 [ 242.309524][ T7250] reiserfs: using flush barriers [ 242.317656][ T7247] REISERFS (device loop0): checking transaction log (loop0) [pid 5070] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7254 attached [pid 7247] <... mount resumed>) = 0 [pid 7247] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7247] chdir("./file0") = 0 [pid 7247] ioctl(4, LOOP_CLR_FD) = 0 [pid 7247] close(4) = 0 [pid 7247] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7247] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7247] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7247] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7247] exit_group(0) = ? [pid 7254] chdir("./182" [pid 7247] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7247, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [ 242.329932][ T7248] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 242.332695][ T7247] REISERFS (device loop0): Using r5 hash to sort names [ 242.339281][ T7248] REISERFS (device loop3): using ordered data mode [ 242.352520][ T7247] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.352604][ T7247] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 242.375235][ T7248] reiserfs: using flush barriers [pid 5069] restart_syscall(<... resuming interrupted clone ...> [pid 7254] <... chdir resumed>) = 0 [pid 5069] <... restart_syscall resumed>) = 0 [pid 5069] umount2("./175", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./175", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7254] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] umount2("./175/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./175/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./175/binderfs") = 0 [pid 5069] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7254] <... prctl resumed>) = 0 [ 242.384489][ T7248] 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 [ 242.401482][ T7250] 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 [ 242.418965][ T7248] REISERFS (device loop3): checking transaction log (loop3) [ 242.426783][ T7250] REISERFS (device loop5): checking transaction log (loop5) [pid 7254] setpgid(0, 0) = 0 [pid 7254] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7254] write(3, "1000", 4) = 4 [pid 7254] close(3) = 0 [pid 7254] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7254] memfd_create("syzkaller", 0) = 3 [pid 7254] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5071] <... umount2 resumed>) = 0 [pid 5071] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./179/file0", [pid 7254] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./179/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./179/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./179" [pid 5069] <... umount2 resumed>) = 0 [pid 5069] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./175/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./175/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./175/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5071] <... rmdir resumed>) = 0 [pid 5069] fstat(4, [pid 5071] mkdir("./180", 0777 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... mkdir resumed>) = 0 [pid 5069] getdents64(4, [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] <... openat resumed>) = 3 [ 242.438119][ T7250] REISERFS (device loop5): Using r5 hash to sort names [ 242.449885][ T7248] REISERFS (device loop3): Using r5 hash to sort names [ 242.464718][ T7250] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5069] getdents64(4, [pid 5071] ioctl(3, LOOP_CLR_FD [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] close(4 [pid 5071] close(3 [pid 5069] <... close resumed>) = 0 [pid 5071] <... close resumed>) = 0 [pid 5069] rmdir("./175/file0" [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5069] <... rmdir resumed>) = 0 [pid 5069] getdents64(3, [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7256 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3) = 0 [pid 5069] rmdir("./175") = 0 [pid 5069] mkdir("./176", 0777) = 0 ./strace-static-x86_64: Process 7256 attached [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 7256] chdir("./180" [pid 5069] <... openat resumed>) = 3 [pid 7256] <... chdir resumed>) = 0 [ 242.504297][ T7248] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5070] <... umount2 resumed>) = 0 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 7256] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 7256] <... prctl resumed>) = 0 [pid 5069] close(3 [pid 7256] setpgid(0, 0 [pid 5069] <... close resumed>) = 0 [pid 7256] <... setpgid resumed>) = 0 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7257 [pid 7256] write(3, "1000", 4) = 4 [pid 7256] close(3) = 0 [pid 7256] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7256] memfd_create("syzkaller", 0) = 3 [pid 7256] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5070] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./178/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 7257 attached [pid 5070] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7257] chdir("./176" [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7257] <... chdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5070] <... openat resumed>) = 4 [pid 7257] <... prctl resumed>) = 0 [pid 5070] fstat(4, [pid 7257] setpgid(0, 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7257] <... setpgid resumed>) = 0 [pid 5070] getdents64(4, [pid 7257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7257] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 7257] write(3, "1000", 4 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7257] <... write resumed>) = 4 [pid 5070] close(4 [pid 7257] close(3 [pid 5070] <... close resumed>) = 0 [pid 7257] <... close resumed>) = 0 [pid 5070] rmdir("./178/file0" [pid 7257] symlink("/dev/binderfs", "./binderfs" [pid 5070] <... rmdir resumed>) = 0 [pid 7257] <... symlink resumed>) = 0 [pid 5070] getdents64(3, [pid 7257] memfd_create("syzkaller", 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7257] <... memfd_create resumed>) = 3 [pid 5070] close(3 [pid 7257] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5070] <... close resumed>) = 0 [pid 7257] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5070] rmdir("./178") = 0 [pid 5070] mkdir("./179", 0777) = 0 [pid 7254] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7250] <... mount resumed>) = 0 [pid 7248] <... mount resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 7256] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7250] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7248] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5070] <... close resumed>) = 0 [ 242.545869][ T7250] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 242.574946][ T7248] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 7250] <... openat resumed>) = 3 [pid 7248] <... openat resumed>) = 3 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7250] chdir("./file0" [pid 7248] chdir("./file0" [pid 7250] <... chdir resumed>) = 0 [pid 7248] <... chdir resumed>) = 0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7258 ./strace-static-x86_64: Process 7258 attached [pid 7250] ioctl(4, LOOP_CLR_FD [pid 7248] ioctl(4, LOOP_CLR_FD [pid 7250] <... ioctl resumed>) = 0 [pid 7248] <... ioctl resumed>) = 0 [pid 7248] close(4 [pid 7250] close(4) = 0 [pid 7248] <... close resumed>) = 0 [pid 7258] chdir("./179" [pid 7254] <... write resumed>) = 4194304 [pid 7250] mkdir(NULL, 000 [pid 7258] <... chdir resumed>) = 0 [pid 7254] munmap(0x7f8a1b2e3000, 4194304 [pid 7248] mkdir(NULL, 000 [pid 7258] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7250] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7248] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7258] <... prctl resumed>) = 0 [pid 7254] <... munmap resumed>) = 0 [pid 7250] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7248] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7250] <... openat resumed>) = 4 [pid 7258] setpgid(0, 0 [pid 7250] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7248] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7254] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7258] <... setpgid resumed>) = 0 [pid 7254] <... openat resumed>) = 4 [pid 7250] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7248] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7258] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7257] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7254] ioctl(4, LOOP_SET_FD, 3 [pid 7250] mount(NULL, "./bus", NULL, 0, NULL [pid 7248] mount(NULL, "./bus", NULL, 0, NULL [pid 7258] <... openat resumed>) = 3 [pid 7254] <... ioctl resumed>) = 0 [pid 7250] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7258] write(3, "1000", 4 [pid 7248] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7248] exit_group(0 [pid 7250] exit_group(0 [pid 7248] <... exit_group resumed>) = ? [pid 7258] <... write resumed>) = 4 [pid 7250] <... exit_group resumed>) = ? [pid 7248] +++ exited with 0 +++ [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7248, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=18 /* 0.18 s */} --- [pid 5072] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 7258] close(3 [pid 7250] +++ exited with 0 +++ [pid 7258] <... close resumed>) = 0 [pid 5072] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7258] symlink("/dev/binderfs", "./binderfs" [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7250, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7258] <... symlink resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] umount2("./183", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 7258] memfd_create("syzkaller", 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] fstat(3, [pid 7258] <... memfd_create resumed>) = 3 [pid 5074] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7258] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] getdents64(3, [pid 7258] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] fstat(3, [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./179/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./179/binderfs") = 0 [pid 5074] getdents64(3, [pid 5072] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] umount2("./183/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7254] close(3 [pid 5074] unlink("./183/binderfs" [pid 7254] <... close resumed>) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 7254] mkdir("./file0", 0777 [pid 5074] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7254] <... mkdir resumed>) = 0 [ 242.668230][ T7254] loop4: detected capacity change from 0 to 8192 [pid 7254] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7258] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7256] <... write resumed>) = 4194304 [pid 7256] munmap(0x7f8a1b2e3000, 4194304) = 0 [ 242.735863][ T7254] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 242.768573][ T7254] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 7258] <... write resumed>) = 4194304 [pid 7256] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7258] munmap(0x7f8a1b2e3000, 4194304 [pid 7256] <... openat resumed>) = 4 [pid 7258] <... munmap resumed>) = 0 [pid 7256] ioctl(4, LOOP_SET_FD, 3 [pid 7258] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7256] <... ioctl resumed>) = 0 [pid 7258] ioctl(4, LOOP_SET_FD, 3 [pid 7256] close(3) = 0 [ 242.806525][ T7254] REISERFS (device loop4): using ordered data mode [ 242.821646][ T7256] loop2: detected capacity change from 0 to 8192 [ 242.829295][ T7254] reiserfs: using flush barriers [ 242.837987][ T7258] loop1: detected capacity change from 0 to 8192 [pid 7258] <... ioctl resumed>) = 0 [pid 7256] mkdir("./file0", 0777 [pid 5072] <... umount2 resumed>) = 0 [pid 5072] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] lstat("./179/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./179/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./179/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./179") = 0 [pid 5072] mkdir("./180", 0777 [pid 7258] close(3 [pid 7256] <... mkdir resumed>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5072] <... mkdir resumed>) = 0 [pid 7258] <... close resumed>) = 0 [pid 7256] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7258] mkdir("./file0", 0777 [pid 5072] <... openat resumed>) = 3 [pid 7258] <... mkdir resumed>) = 0 [pid 7257] <... write resumed>) = 4194304 [pid 5074] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7257] munmap(0x7f8a1b2e3000, 4194304 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7257] <... munmap resumed>) = 0 [pid 5074] lstat("./183/file0", [pid 7257] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7257] <... openat resumed>) = 4 [pid 5074] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7257] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7258] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7257] <... ioctl resumed>) = 0 [pid 5072] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 242.844874][ T7254] 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 [ 242.864065][ T7254] REISERFS (device loop4): checking transaction log (loop4) [ 242.875038][ T7254] REISERFS (device loop4): Using r5 hash to sort names [ 242.878401][ T7257] loop0: detected capacity change from 0 to 8192 [ 242.883264][ T7256] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 5072] close(3 [pid 7257] close(3 [pid 7254] <... mount resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./183/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5072] <... close resumed>) = 0 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7262 [pid 7257] <... close resumed>) = 0 [pid 7254] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5074] <... openat resumed>) = 4 [pid 7257] mkdir("./file0", 0777 [pid 7254] <... openat resumed>) = 3 [pid 5074] fstat(4, ./strace-static-x86_64: Process 7262 attached [ 242.888834][ T7254] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 242.914694][ T7254] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 242.924198][ T7256] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 242.933873][ T7256] REISERFS (device loop2): using ordered data mode [ 242.939195][ T7258] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7262] chdir("./180" [pid 7257] <... mkdir resumed>) = 0 [pid 7254] chdir("./file0" [pid 7262] <... chdir resumed>) = 0 [pid 7257] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7262] setpgid(0, 0) = 0 [pid 7262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7262] write(3, "1000", 4) = 4 [pid 7262] close(3) = 0 [pid 7254] <... chdir resumed>) = 0 [pid 5074] getdents64(4, [pid 7254] ioctl(4, LOOP_CLR_FD [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7254] <... ioctl resumed>) = 0 [pid 5074] getdents64(4, [ 242.940799][ T7256] reiserfs: using flush barriers [ 242.960483][ T7258] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 242.969867][ T7256] 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 [ 242.970240][ T7258] REISERFS (device loop1): using ordered data mode [ 242.992994][ T7258] reiserfs: using flush barriers [pid 7254] close(4 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7262] symlink("/dev/binderfs", "./binderfs" [pid 7254] <... close resumed>) = 0 [pid 5074] close(4 [pid 7254] mkdir(NULL, 000 [pid 5074] <... close resumed>) = 0 [pid 7254] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] rmdir("./183/file0" [pid 7254] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... rmdir resumed>) = 0 [pid 7254] <... openat resumed>) = 4 [pid 5074] getdents64(3, [pid 7254] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7254] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] close(3 [pid 7254] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... close resumed>) = 0 [pid 7254] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] rmdir("./183" [pid 7254] exit_group(0 [pid 5074] <... rmdir resumed>) = 0 [pid 7254] <... exit_group resumed>) = ? [pid 5074] mkdir("./184", 0777 [pid 7254] +++ exited with 0 +++ [pid 5074] <... mkdir resumed>) = 0 [pid 7262] <... symlink resumed>) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7254, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} --- [pid 7262] memfd_create("syzkaller", 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5074] close(3 [pid 7262] <... memfd_create resumed>) = 3 [pid 5074] <... close resumed>) = 0 [pid 5073] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7264 [pid 7262] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7262] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5073] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 ./strace-static-x86_64: Process 7264 attached [ 243.001083][ T7258] 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 [ 243.020315][ T7257] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.021117][ T7258] REISERFS (device loop1): checking transaction log (loop1) [ 243.043421][ T7258] REISERFS (device loop1): Using r5 hash to sort names [pid 5073] fstat(3, [pid 7264] chdir("./184") = 0 [pid 7264] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7264] setpgid(0, 0) = 0 [pid 7264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 7264] write(3, "1000", 4) = 4 [pid 7264] close(3) = 0 [pid 7264] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7264] <... symlink resumed>) = 0 [pid 5073] getdents64(3, [pid 7264] memfd_create("syzkaller", 0) = 3 [pid 7264] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./182/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [ 243.057287][ T7256] REISERFS (device loop2): checking transaction log (loop2) [ 243.064863][ T7257] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 243.076694][ T7257] REISERFS (device loop0): using ordered data mode [ 243.078947][ T7258] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.083277][ T7256] REISERFS (device loop2): Using r5 hash to sort names [pid 5073] unlink("./182/binderfs") = 0 [pid 5073] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7256] <... mount resumed>) = 0 [pid 7256] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7258] <... mount resumed>) = 0 [pid 7256] <... openat resumed>) = 3 [pid 7258] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7256] chdir("./file0" [pid 7258] <... openat resumed>) = 3 [pid 7256] <... chdir resumed>) = 0 [pid 7258] chdir("./file0" [pid 7256] ioctl(4, LOOP_CLR_FD [pid 7258] <... chdir resumed>) = 0 [pid 7258] ioctl(4, LOOP_CLR_FD [pid 7256] <... ioctl resumed>) = 0 [pid 7258] <... ioctl resumed>) = 0 [pid 7256] close(4 [pid 7264] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7258] close(4 [pid 7256] <... close resumed>) = 0 [pid 7258] <... close resumed>) = 0 [ 243.103720][ T7256] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.106954][ T7257] reiserfs: using flush barriers [ 243.116474][ T7256] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 243.131381][ T7258] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7256] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7256] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7256] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7256] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7256] exit_group(0) = ? [pid 7256] +++ exited with 0 +++ [pid 7258] mkdir(NULL, 000 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7256, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} --- [pid 7258] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7258] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7258] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7258] mount(NULL, "./bus", NULL, 0, NULL [ 243.176537][ T7257] 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 [ 243.206701][ T7257] REISERFS (device loop0): checking transaction log (loop0) [pid 7262] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7264] <... write resumed>) = 4194304 [pid 7258] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7264] munmap(0x7f8a1b2e3000, 4194304 [pid 7258] exit_group(0 [pid 5071] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7264] <... munmap resumed>) = 0 [pid 7258] <... exit_group resumed>) = ? [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7264] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7258] +++ exited with 0 +++ [pid 7257] <... mount resumed>) = 0 [pid 5071] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7264] <... openat resumed>) = 4 [pid 7257] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7264] ioctl(4, LOOP_SET_FD, 3 [pid 5071] <... openat resumed>) = 3 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7258, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 7257] <... openat resumed>) = 3 [ 243.225566][ T7257] REISERFS (device loop0): Using r5 hash to sort names [ 243.233534][ T7257] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.248887][ T7257] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 7264] <... ioctl resumed>) = 0 [pid 7257] chdir("./file0" [pid 5071] fstat(3, [pid 7264] close(3 [pid 7257] <... chdir resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7264] <... close resumed>) = 0 [pid 7257] ioctl(4, LOOP_CLR_FD [pid 7264] mkdir("./file0", 0777 [pid 7257] <... ioctl resumed>) = 0 [pid 5071] getdents64(3, [pid 7264] <... mkdir resumed>) = 0 [pid 7257] close(4 [pid 7264] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7257] <... close resumed>) = 0 [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7257] mkdir(NULL, 000 [pid 5071] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7257] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7257] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] umount2("./179", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7257] <... openat resumed>) = 4 [pid 5071] lstat("./180/binderfs", [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7262] <... write resumed>) = 4194304 [pid 7257] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7262] munmap(0x7f8a1b2e3000, 4194304 [pid 7257] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [ 243.273831][ T7264] loop5: detected capacity change from 0 to 8192 [pid 5070] openat(AT_FDCWD, "./179", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7257] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] unlink("./180/binderfs" [pid 7262] <... munmap resumed>) = 0 [pid 7257] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] <... openat resumed>) = 3 [pid 7262] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7257] exit_group(0 [pid 5071] <... unlink resumed>) = 0 [pid 5070] fstat(3, [pid 7262] <... openat resumed>) = 4 [pid 7257] <... exit_group resumed>) = ? [pid 5071] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7262] ioctl(4, LOOP_SET_FD, 3 [pid 7257] +++ exited with 0 +++ [pid 5070] getdents64(3, [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7257, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} --- [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./179/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7262] <... ioctl resumed>) = 0 [ 243.301127][ T7264] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.321708][ T7262] loop3: detected capacity change from 0 to 8192 [ 243.336333][ T7264] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./179/binderfs", [pid 7262] close(3 [pid 5069] umount2("./176", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7262] <... close resumed>) = 0 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7262] mkdir("./file0", 0777 [pid 5073] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7262] <... mkdir resumed>) = 0 [pid 5073] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] unlink("./179/binderfs" [pid 5069] openat(AT_FDCWD, "./176", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7262] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./182/file0", [pid 5070] <... unlink resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] fstat(3, [pid 5073] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] getdents64(3, [pid 5073] <... openat resumed>) = 4 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] fstat(4, [pid 5069] umount2("./176/binderfs", 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, [ 243.345864][ T7264] REISERFS (device loop5): using ordered data mode [ 243.356742][ T7264] reiserfs: using flush barriers [ 243.367352][ T7264] 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 [ 243.386133][ T7264] REISERFS (device loop5): checking transaction log (loop5) [pid 5069] lstat("./176/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] getdents64(4, [pid 5071] <... umount2 resumed>) = 0 [pid 5069] unlink("./176/binderfs" [pid 5071] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./180/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./180/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] <... openat resumed>) = 4 [pid 5071] fstat(4, [pid 5073] close(4 [pid 5069] <... unlink resumed>) = 0 [pid 5073] <... close resumed>) = 0 [pid 5069] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] rmdir("./182/file0" [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./180/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./180") = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5071] mkdir("./181", 0777 [pid 5073] getdents64(3, [pid 5071] <... mkdir resumed>) = 0 [ 243.395501][ T7262] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.409833][ T7262] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 243.416627][ T7264] REISERFS (device loop5): Using r5 hash to sort names [ 243.419753][ T7262] REISERFS (device loop3): using ordered data mode [ 243.432695][ T7262] reiserfs: using flush barriers [ 243.434299][ T7264] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5073] <... getdents64 resumed>0x555556cae620 /* 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 [pid 5073] close(3) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7267 [pid 5073] rmdir("./182") = 0 [pid 5073] mkdir("./183", 0777 [pid 7264] <... mount resumed>) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 7264] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3) = 0 [ 243.458545][ T7262] 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 [ 243.478889][ T7262] REISERFS (device loop3): checking transaction log (loop3) [ 243.487645][ T7264] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 243.499384][ T7262] 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=0x555556cad5d0) = 7268 [pid 7264] <... openat resumed>) = 3 [pid 7264] chdir("./file0") = 0 [pid 7264] ioctl(4, LOOP_CLR_FD) = 0 [pid 7264] close(4) = 0 ./strace-static-x86_64: Process 7268 attached ./strace-static-x86_64: Process 7267 attached [pid 7264] mkdir(NULL, 000 [pid 7262] <... mount resumed>) = 0 [pid 7268] chdir("./183" [pid 7264] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 7262] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7268] <... chdir resumed>) = 0 [pid 7267] chdir("./181" [pid 7264] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7262] <... openat resumed>) = 3 [pid 7268] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7267] <... chdir resumed>) = 0 [pid 7264] <... openat resumed>) = 4 [pid 7262] chdir("./file0" [pid 7268] <... prctl resumed>) = 0 [pid 7267] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7264] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 7262] <... chdir resumed>) = 0 [pid 7268] setpgid(0, 0 [pid 7267] <... prctl resumed>) = 0 [pid 7264] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7262] ioctl(4, LOOP_CLR_FD [pid 7268] <... setpgid resumed>) = 0 [pid 7267] setpgid(0, 0 [pid 7264] mount(NULL, "./bus", NULL, 0, NULL [pid 7262] <... ioctl resumed>) = 0 [pid 7268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7267] <... setpgid resumed>) = 0 [pid 7264] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7262] close(4 [pid 7268] <... openat resumed>) = 3 [pid 7267] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7264] exit_group(0 [pid 7262] <... close resumed>) = 0 [pid 7268] write(3, "1000", 4 [pid 7267] <... openat resumed>) = 3 [pid 7264] <... exit_group resumed>) = ? [pid 7262] mkdir(NULL, 000 [pid 7268] <... write resumed>) = 4 [pid 7267] write(3, "1000", 4 [pid 7264] +++ exited with 0 +++ [pid 7268] close(3 [pid 7267] <... write resumed>) = 4 [pid 7262] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7264, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} --- [pid 7268] <... close resumed>) = 0 [pid 7267] close(3 [pid 7262] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 7268] symlink("/dev/binderfs", "./binderfs" [pid 7267] <... close resumed>) = 0 [pid 7268] <... symlink resumed>) = 0 [ 243.507281][ T7262] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 243.520900][ T7262] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 7267] symlink("/dev/binderfs", "./binderfs" [pid 7262] <... openat resumed>) = 4 [pid 5074] umount2("./184", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7268] memfd_create("syzkaller", 0 [pid 7267] <... symlink resumed>) = 0 [pid 7262] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7268] <... memfd_create resumed>) = 3 [pid 7267] memfd_create("syzkaller", 0 [pid 7262] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./184", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7268] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7267] <... memfd_create resumed>) = 3 [pid 7262] mount(NULL, "./bus", NULL, 0, NULL [pid 5074] <... openat resumed>) = 3 [pid 7268] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7267] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7262] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5074] fstat(3, [pid 5070] <... umount2 resumed>) = 0 [pid 5069] <... umount2 resumed>) = 0 [pid 7267] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7262] exit_group(0 [pid 5070] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7262] <... exit_group resumed>) = ? [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7262] +++ exited with 0 +++ [pid 5074] getdents64(3, [pid 5070] lstat("./179/file0", [pid 5069] lstat("./176/file0", [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7262, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [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 5074] umount2("./184/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] umount2("./179/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] umount2("./176/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./184/binderfs", [pid 5072] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] openat(AT_FDCWD, "./179/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] openat(AT_FDCWD, "./176/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] <... openat resumed>) = 4 [pid 5069] <... openat resumed>) = 4 [pid 5074] unlink("./184/binderfs" [pid 5072] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] fstat(4, [pid 5069] fstat(4, [pid 5074] <... unlink resumed>) = 0 [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 5074] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... openat resumed>) = 3 [pid 5070] getdents64(4, [pid 5069] getdents64(4, [pid 5072] fstat(3, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] getdents64(4, [pid 5069] getdents64(4, [pid 5072] getdents64(3, [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] close(4 [pid 5069] close(4 [pid 5072] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] rmdir("./179/file0" [pid 5069] rmdir("./176/file0" [pid 5072] lstat("./180/binderfs", [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] getdents64(3, [pid 5069] getdents64(3, [pid 5072] unlink("./180/binderfs" [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3 [pid 5069] close(3 [pid 5072] <... unlink resumed>) = 0 [pid 5070] <... close resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] rmdir("./179" [pid 5069] rmdir("./176" [pid 5070] <... rmdir resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5070] mkdir("./180", 0777 [pid 5069] mkdir("./177", 0777 [pid 5070] <... mkdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5070] <... openat resumed>) = 3 [pid 5069] <... openat resumed>) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] close(3 [pid 5069] close(3 [pid 5070] <... close resumed>) = 0 [pid 5069] <... 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 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7269 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7270 ./strace-static-x86_64: Process 7270 attached [pid 7268] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 7269 attached [pid 7269] chdir("./180") = 0 [pid 7269] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7269] setpgid(0, 0) = 0 [pid 7269] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7270] chdir("./177" [pid 7269] <... openat resumed>) = 3 [pid 7270] <... chdir resumed>) = 0 [pid 7269] write(3, "1000", 4 [pid 7270] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7269] <... write resumed>) = 4 [pid 7269] close(3 [pid 7270] <... prctl resumed>) = 0 [pid 7269] <... close resumed>) = 0 [pid 7269] symlink("/dev/binderfs", "./binderfs" [pid 7270] setpgid(0, 0 [pid 7269] <... symlink resumed>) = 0 [pid 7270] <... setpgid resumed>) = 0 [pid 7269] memfd_create("syzkaller", 0 [pid 7267] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7270] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7269] <... memfd_create resumed>) = 3 [pid 7269] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7270] <... openat resumed>) = 3 [pid 7269] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7270] write(3, "1000", 4) = 4 [pid 7270] close(3) = 0 [pid 7270] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7270] memfd_create("syzkaller", 0) = 3 [pid 7270] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7268] <... write resumed>) = 4194304 [pid 7268] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7268] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 7268] ioctl(4, LOOP_SET_FD, 3 [pid 5074] <... umount2 resumed>) = 0 [pid 5074] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./184/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5072] <... umount2 resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./184/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 5074] fstat(4, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] close(4) = 0 [pid 5074] rmdir("./184/file0") = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] close(3) = 0 [pid 5074] rmdir("./184") = 0 [pid 5074] mkdir("./185", 0777) = 0 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 5074] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5074] close(3) = 0 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7271 [pid 7268] <... ioctl resumed>) = 0 [pid 7268] close(3) = 0 [pid 7268] mkdir("./file0", 0777) = 0 [pid 7268] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7271 attached [pid 7271] chdir("./185") = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] lstat("./180/file0", [pid 7271] setpgid(0, 0) = 0 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 243.768783][ T7268] loop4: detected capacity change from 0 to 8192 [pid 7271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7271] write(3, "1000", 4) = 4 [pid 7271] close(3) = 0 [pid 7271] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7271] memfd_create("syzkaller", 0) = 3 [pid 7271] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5072] openat(AT_FDCWD, "./180/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, [pid 7269] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7270] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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] close(4) = 0 [ 243.827413][ T7268] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.867219][ T7268] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [pid 5072] rmdir("./180/file0" [pid 7267] <... write resumed>) = 4194304 [pid 7267] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7267] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 7267] ioctl(4, LOOP_SET_FD, 3 [pid 5072] <... rmdir resumed>) = 0 [pid 5072] getdents64(3, [pid 7267] <... ioctl resumed>) = 0 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 7267] close(3 [pid 5072] close(3 [pid 7267] <... close resumed>) = 0 [pid 5072] <... close resumed>) = 0 [pid 7267] mkdir("./file0", 0777 [pid 5072] rmdir("./180" [pid 7271] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7267] <... mkdir resumed>) = 0 [pid 5072] <... rmdir resumed>) = 0 [pid 7267] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5072] mkdir("./181", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7274 [ 243.875665][ T7267] loop2: detected capacity change from 0 to 8192 [ 243.876665][ T7268] REISERFS (device loop4): using ordered data mode [ 243.889414][ T7268] reiserfs: using flush barriers [ 243.905812][ T7268] 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 ./strace-static-x86_64: Process 7274 attached [pid 7271] <... write resumed>) = 4194304 [pid 7274] chdir("./181" [pid 7271] munmap(0x7f8a1b2e3000, 4194304 [pid 7269] <... write resumed>) = 4194304 [pid 7274] <... chdir resumed>) = 0 [pid 7271] <... munmap resumed>) = 0 [pid 7269] munmap(0x7f8a1b2e3000, 4194304 [pid 7274] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7271] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 7274] <... prctl resumed>) = 0 [pid 7271] <... openat resumed>) = 4 [pid 7269] <... munmap resumed>) = 0 [pid 7274] setpgid(0, 0 [pid 7271] ioctl(4, LOOP_SET_FD, 3 [pid 7269] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7274] <... setpgid resumed>) = 0 [pid 7271] <... ioctl resumed>) = 0 [pid 7269] <... openat resumed>) = 4 [pid 7274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7271] close(3 [ 243.944059][ T7268] REISERFS (device loop4): checking transaction log (loop4) [ 243.954668][ T7267] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 243.978458][ T7271] loop5: detected capacity change from 0 to 8192 [ 243.987911][ T7269] loop1: detected capacity change from 0 to 8192 [pid 7269] ioctl(4, LOOP_SET_FD, 3 [pid 7274] <... openat resumed>) = 3 [pid 7270] <... write resumed>) = 4194304 [pid 7269] <... ioctl resumed>) = 0 [pid 7274] write(3, "1000", 4) = 4 [pid 7274] close(3) = 0 [pid 7274] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7274] memfd_create("syzkaller", 0) = 3 [pid 7274] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7271] <... close resumed>) = 0 [pid 7271] mkdir("./file0", 0777) = 0 [pid 7270] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7271] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7269] close(3) = 0 [pid 7269] mkdir("./file0", 0777) = 0 [pid 7269] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7270] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 243.989609][ T7267] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [ 244.004590][ T7267] REISERFS (device loop2): using ordered data mode [ 244.004768][ T7268] REISERFS (device loop4): Using r5 hash to sort names [ 244.012690][ T7267] reiserfs: using flush barriers [ 244.024739][ T7270] loop0: detected capacity change from 0 to 8192 [ 244.024865][ T7271] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.033644][ T7268] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.056793][ T7269] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.056816][ T7269] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 244.056895][ T7269] REISERFS (device loop1): using ordered data mode [pid 7270] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7274] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7270] close(3) = 0 [ 244.069831][ T7267] 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 [ 244.070165][ T7267] REISERFS (device loop2): checking transaction log (loop2) [ 244.101763][ T7268] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 244.109844][ T7271] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 244.129199][ T7267] REISERFS (device loop2): Using r5 hash to sort names [ 244.129813][ T7269] reiserfs: using flush barriers [pid 7270] mkdir("./file0", 0777) = 0 [ 244.136533][ T7267] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.154211][ T7267] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [ 244.164354][ T7271] REISERFS (device loop5): using ordered data mode [ 244.164881][ T7269] 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 [ 244.187782][ T7271] reiserfs: using flush barriers [pid 7270] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7268] <... mount resumed>) = 0 [pid 7267] <... mount resumed>) = 0 [pid 7267] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7267] chdir("./file0") = 0 [pid 7267] ioctl(4, LOOP_CLR_FD) = 0 [pid 7267] close(4) = 0 [pid 7267] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7267] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7267] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7267] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7267] exit_group(0) = ? [pid 7267] +++ exited with 0 +++ [pid 7274] <... write resumed>) = 4194304 [pid 7274] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7274] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 7274] ioctl(4, LOOP_SET_FD, 3 [pid 7268] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7274] <... ioctl resumed>) = 0 [pid 7274] close(3) = 0 [pid 7274] mkdir("./file0", 0777) = 0 [pid 7274] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7268] <... openat resumed>) = 3 [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7267, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} --- [pid 7268] chdir("./file0" [pid 5071] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7268] <... chdir resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 244.193937][ T7270] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.204228][ T7274] loop3: detected capacity change from 0 to 8192 [ 244.217287][ T7269] REISERFS (device loop1): checking transaction log (loop1) [ 244.223366][ T7271] 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 7268] ioctl(4, LOOP_CLR_FD [pid 5071] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7268] <... ioctl resumed>) = 0 [pid 5071] <... openat resumed>) = 3 [ 244.226114][ T7269] REISERFS (device loop1): Using r5 hash to sort names [ 244.242967][ T7270] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 244.248881][ T7274] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.258784][ T7271] REISERFS (device loop5): checking transaction log (loop5) [ 244.270531][ T7269] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7268] close(4 [pid 5071] fstat(3, [pid 7268] <... close resumed>) = 0 [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7268] mkdir(NULL, 000 [pid 5071] getdents64(3, [pid 7268] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5071] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7268] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5071] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7268] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7268] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5071] lstat("./181/binderfs", [pid 7269] <... mount resumed>) = 0 [pid 7268] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5071] unlink("./181/binderfs" [pid 7268] mount(NULL, "./bus", NULL, 0, NULL [pid 5071] <... unlink resumed>) = 0 [pid 7268] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5071] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7268] exit_group(0) = ? [pid 7269] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7268] +++ exited with 0 +++ [pid 7269] <... openat resumed>) = 3 [ 244.278993][ T7270] REISERFS (device loop0): using ordered data mode [ 244.290580][ T7274] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 244.297047][ T7269] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [ 244.325684][ T7274] REISERFS (device loop3): using ordered data mode [ 244.332625][ T7274] reiserfs: using flush barriers [ 244.339565][ T7270] reiserfs: using flush barriers [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7268, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=13 /* 0.13 s */} --- [pid 5073] umount2("./183", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] openat(AT_FDCWD, "./183", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5073] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7269] chdir("./file0" [ 244.346695][ T7274] 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 [ 244.356510][ T7270] 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 [ 244.363775][ T7274] REISERFS (device loop3): checking transaction log (loop3) [ 244.382137][ T7271] REISERFS (device loop5): Using r5 hash to sort names [pid 5073] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7269] <... chdir resumed>) = 0 [pid 5073] umount2("./183/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./183/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./183/binderfs") = 0 [pid 5073] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7271] <... mount resumed>) = 0 [pid 7269] ioctl(4, LOOP_CLR_FD) = 0 [pid 7269] close(4) = 0 [pid 7269] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7269] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7269] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7269] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7269] exit_group(0) = ? [pid 7269] +++ exited with 0 +++ [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7269, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=11 /* 0.11 s */} --- [pid 5070] restart_syscall(<... resuming interrupted clone ...> [pid 7271] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5070] <... restart_syscall resumed>) = 0 [pid 7271] chdir("./file0") = 0 [pid 5070] umount2("./180", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./180", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7271] ioctl(4, LOOP_CLR_FD [pid 5070] <... openat resumed>) = 3 [pid 5070] fstat(3, [pid 7271] <... ioctl resumed>) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7271] close(4 [ 244.387930][ T7270] REISERFS (device loop0): checking transaction log (loop0) [ 244.401861][ T7271] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.416025][ T7271] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 244.416555][ T7270] REISERFS (device loop0): Using r5 hash to sort names [ 244.433347][ T7274] REISERFS (device loop3): Using r5 hash to sort names [pid 5070] getdents64(3, [pid 7271] <... close resumed>) = 0 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7271] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7271] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5070] umount2("./180/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./180/binderfs", [pid 7271] <... openat resumed>) = 4 [pid 5070] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7271] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5070] unlink("./180/binderfs" [pid 7271] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 7271] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] <... unlink resumed>) = 0 [pid 7271] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5070] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7271] exit_group(0) = ? [pid 7271] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7271, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} --- [pid 5074] umount2("./185", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] openat(AT_FDCWD, "./185", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5074] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [ 244.457560][ T7274] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 244.494534][ T7274] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [pid 5074] umount2("./185/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./185/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5074] unlink("./185/binderfs") = 0 [pid 5074] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = 0 [pid 5070] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./180/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./180/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./180/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] close(4) = 0 [pid 5070] rmdir("./180/file0") = 0 [pid 5070] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [pid 5070] rmdir("./180") = 0 [pid 5070] mkdir("./181", 0777) = 0 [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 5070] ioctl(3, LOOP_CLR_FD) = 0 [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7279 [pid 7274] <... mount resumed>) = 0 [pid 7274] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7274] chdir("./file0") = 0 [pid 7274] ioctl(4, LOOP_CLR_FD) = 0 [ 244.512755][ T7270] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7274] close(4 [pid 5071] <... umount2 resumed>) = 0 [pid 7274] <... close resumed>) = 0 [pid 7274] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7274] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7274] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7274] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 7279 attached [pid 7274] exit_group(0) = ? [pid 7279] chdir("./181" [pid 7274] +++ exited with 0 +++ [pid 7279] <... chdir resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7274, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 7279] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7279] setpgid(0, 0) = 0 [pid 5072] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7279] <... openat resumed>) = 3 [pid 5072] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7279] write(3, "1000", 4) = 4 [pid 5072] <... openat resumed>) = 3 [pid 5072] fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7279] close(3) = 0 [pid 5072] getdents64(3, [pid 7279] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7279] <... symlink resumed>) = 0 [pid 5072] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7279] memfd_create("syzkaller", 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7279] <... memfd_create resumed>) = 3 [pid 5072] lstat("./181/binderfs", [pid 7279] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] unlink("./181/binderfs") = 0 [pid 5072] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... umount2 resumed>) = 0 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5071] lstat("./181/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./181/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] close(4) = 0 [pid 5071] rmdir("./181/file0") = 0 [pid 5071] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] close(3) = 0 [pid 5071] rmdir("./181") = 0 [pid 5071] mkdir("./182", 0777) = 0 [pid 5071] 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) = 0 [pid 5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7280 [pid 7270] <... mount resumed>) = 0 [pid 7270] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5073] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7270] <... openat resumed>) = 3 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [ 244.608097][ T7270] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 7270] chdir("./file0" [pid 5073] lstat("./183/file0", [pid 7270] <... chdir resumed>) = 0 [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 ./strace-static-x86_64: Process 7280 attached [pid 7270] ioctl(4, LOOP_CLR_FD [pid 5074] <... umount2 resumed>) = 0 [pid 5073] umount2("./183/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7270] <... ioctl resumed>) = 0 [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7280] chdir("./182" [pid 7270] close(4 [pid 5074] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] openat(AT_FDCWD, "./183/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7280] <... chdir resumed>) = 0 [pid 7270] <... close resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... openat resumed>) = 4 [pid 7270] mkdir(NULL, 000 [pid 5073] fstat(4, [pid 7280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7270] <... mkdir resumed>) = -1 EFAULT (Bad address) [pid 5074] lstat("./185/file0", [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7280] <... prctl resumed>) = 0 [pid 7270] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 [pid 5074] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] getdents64(4, [pid 7280] setpgid(0, 0 [pid 7270] <... openat resumed>) = 4 [pid 5074] umount2("./185/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7270] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0 [pid 5073] getdents64(4, [pid 7280] <... setpgid resumed>) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7270] <... fsconfig resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7270] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] close(4 [pid 7270] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 5073] <... close resumed>) = 0 [pid 7280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7270] exit_group(0 [pid 5074] openat(AT_FDCWD, "./185/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] rmdir("./183/file0" [pid 7280] <... openat resumed>) = 3 [pid 7270] <... exit_group resumed>) = ? [pid 5074] <... openat resumed>) = 4 [pid 5073] <... rmdir resumed>) = 0 [pid 7280] write(3, "1000", 4 [pid 7270] +++ exited with 0 +++ [pid 5074] fstat(4, [pid 5073] getdents64(3, [pid 7280] <... write resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7270, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=16 /* 0.16 s */} --- [pid 5073] close(3 [pid 7280] close(3 [pid 5074] getdents64(4, [pid 5073] <... close resumed>) = 0 [pid 7280] <... close resumed>) = 0 [pid 5073] rmdir("./183" [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7280] symlink("/dev/binderfs", "./binderfs" [pid 5073] <... rmdir resumed>) = 0 [pid 5074] getdents64(4, [pid 7280] <... symlink resumed>) = 0 [pid 7279] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./184", 0777 [pid 7280] memfd_create("syzkaller", 0 [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5073] <... mkdir resumed>) = 0 [pid 5069] umount2("./177", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7280] <... memfd_create resumed>) = 3 [pid 5074] close(4 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7280] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5074] <... close resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5073] close(3 [pid 7280] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5074] rmdir("./185/file0" [pid 5073] <... close resumed>) = 0 [pid 5069] openat(AT_FDCWD, "./177", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556cad5d0) = 7281 [pid 5074] <... rmdir resumed>) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5074] getdents64(3, [pid 5069] fstat(3, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] close(3 [pid 5069] getdents64(3, [pid 5074] <... close resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5074] rmdir("./185" [pid 5069] umount2("./177/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7281 attached [pid 7281] chdir("./184" [pid 5074] <... rmdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7281] <... chdir resumed>) = 0 [pid 5074] mkdir("./186", 0777 [pid 5072] <... umount2 resumed>) = 0 [pid 5069] lstat("./177/binderfs", [pid 7281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7281] setpgid(0, 0) = 0 [pid 7281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5074] <... mkdir resumed>) = 0 [pid 5072] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7281] <... openat resumed>) = 3 [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] unlink("./177/binderfs" [pid 7281] write(3, "1000", 4) = 4 [pid 5072] lstat("./181/file0", [pid 7281] close(3 [pid 5069] <... unlink resumed>) = 0 [pid 7281] <... close resumed>) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5072] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7281] symlink("/dev/binderfs", "./binderfs" [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7281] <... symlink resumed>) = 0 [pid 5074] close(3 [pid 7281] memfd_create("syzkaller", 0 [pid 5074] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7281] <... memfd_create resumed>) = 3 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7281] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] <... openat resumed>) = 4 [pid 7281] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] fstat(4, [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7282 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5072] getdents64(4, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5072] close(4) = 0 [pid 5072] rmdir("./181/file0") = 0 [pid 5072] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [pid 5072] rmdir("./181") = 0 [pid 5072] mkdir("./182", 0777) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", 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=0x555556cad5d0) = 7283 ./strace-static-x86_64: Process 7282 attached [pid 7282] chdir("./186"./strace-static-x86_64: Process 7283 attached ) = 0 [pid 7283] chdir("./182" [pid 7282] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7283] <... chdir resumed>) = 0 [pid 7282] <... prctl resumed>) = 0 [pid 7282] setpgid(0, 0 [pid 7283] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7282] <... setpgid resumed>) = 0 [pid 7283] <... prctl resumed>) = 0 [pid 7282] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7280] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7283] setpgid(0, 0 [pid 7282] <... openat resumed>) = 3 [pid 7283] <... setpgid resumed>) = 0 [pid 7282] write(3, "1000", 4) = 4 [pid 7283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7282] close(3 [pid 7283] <... openat resumed>) = 3 [pid 7283] write(3, "1000", 4 [pid 7282] <... close resumed>) = 0 [pid 7283] <... write resumed>) = 4 [pid 7282] symlink("/dev/binderfs", "./binderfs" [pid 7283] close(3 [pid 7282] <... symlink resumed>) = 0 [pid 7283] <... close resumed>) = 0 [pid 7282] memfd_create("syzkaller", 0 [pid 7281] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7283] symlink("/dev/binderfs", "./binderfs" [pid 7282] <... memfd_create resumed>) = 3 [pid 7283] <... symlink resumed>) = 0 [pid 7282] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7283] memfd_create("syzkaller", 0) = 3 [pid 7283] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7279] <... write resumed>) = 4194304 [pid 7279] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 7279] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 7279] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... umount2 resumed>) = 0 [pid 7279] <... ioctl resumed>) = 0 [pid 7279] close(3) = 0 [pid 7279] mkdir("./file0", 0777 [pid 5069] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7279] <... mkdir resumed>) = 0 [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./177/file0", [pid 7279] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] umount2("./177/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./177/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, 0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] close(4) = 0 [pid 5069] rmdir("./177/file0") = 0 [ 244.888856][ T7279] loop1: detected capacity change from 0 to 8192 [pid 5069] getdents64(3, 0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] close(3 [pid 7280] <... write resumed>) = 4194304 [pid 7283] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7282] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7281] <... write resumed>) = 4194304 [pid 7280] munmap(0x7f8a1b2e3000, 4194304 [pid 5069] <... close resumed>) = 0 [pid 5069] rmdir("./177") = 0 [pid 5069] mkdir("./178", 0777) = 0 [ 244.931432][ T7279] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 244.956921][ T7279] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 244.966690][ T7279] REISERFS (device loop1): using ordered data mode [ 244.973226][ T7279] reiserfs: using flush barriers [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 5069] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 7281] munmap(0x7f8a1b2e3000, 4194304 [pid 7280] <... munmap resumed>) = 0 [pid 5069] close(3 [pid 7281] <... munmap resumed>) = 0 [pid 7280] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5069] <... close resumed>) = 0 [pid 7281] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 7280] <... openat resumed>) = 4 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7281] <... openat resumed>) = 4 [pid 7280] ioctl(4, LOOP_SET_FD, 3 [pid 7281] ioctl(4, LOOP_SET_FD, 3 [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7285 [pid 7280] <... ioctl resumed>) = 0 [pid 7281] <... ioctl resumed>) = 0 [pid 7280] close(3 [pid 7281] close(3 [pid 7280] <... close resumed>) = 0 [pid 7281] <... close resumed>) = 0 [pid 7280] mkdir("./file0", 0777./strace-static-x86_64: Process 7285 attached [ 244.979643][ T7279] 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 [ 245.010869][ T7280] loop2: detected capacity change from 0 to 8192 [ 245.013190][ T7279] REISERFS (device loop1): checking transaction log (loop1) [ 245.017758][ T7281] loop4: detected capacity change from 0 to 8192 [pid 7283] <... write resumed>) = 4194304 [pid 7281] mkdir("./file0", 0777 [pid 7280] <... mkdir resumed>) = 0 [pid 7285] chdir("./178" [pid 7280] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7285] <... chdir resumed>) = 0 [pid 7285] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 7283] munmap(0x7f8a1b2e3000, 4194304 [pid 7281] <... mkdir resumed>) = 0 [pid 7285] setpgid(0, 0 [pid 7283] <... munmap resumed>) = 0 [pid 7281] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7285] <... setpgid resumed>) = 0 [pid 7283] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 7285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7283] <... openat resumed>) = 4 [pid 7285] <... openat resumed>) = 3 [pid 7283] ioctl(4, LOOP_SET_FD, 3 [pid 7285] write(3, "1000", 4 [pid 7282] <... write resumed>) = 4194304 [pid 7285] <... write resumed>) = 4 [pid 7285] close(3) = 0 [pid 7285] symlink("/dev/binderfs", "./binderfs") = 0 [pid 7285] memfd_create("syzkaller", 0) = 3 [pid 7285] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [ 245.050164][ T7279] REISERFS (device loop1): Using r5 hash to sort names [ 245.058010][ T7279] REISERFS warning (device loop1): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.067212][ T7283] loop3: detected capacity change from 0 to 8192 [ 245.073270][ T7279] REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage. [pid 7283] <... ioctl resumed>) = 0 [pid 7279] <... mount resumed>) = 0 [pid 7279] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7279] chdir("./file0") = 0 [pid 7279] ioctl(4, LOOP_CLR_FD) = 0 [pid 7279] close(4) = 0 [pid 7279] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7279] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7279] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7279] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7279] exit_group(0) = ? [pid 7279] +++ exited with 0 +++ [pid 7283] close(3) = 0 [pid 7283] mkdir("./file0", 0777) = 0 [pid 7283] mount("/dev/loop3", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7282] munmap(0x7f8a1b2e3000, 4194304) = 0 [pid 5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7279, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=15 /* 0.15 s */} --- [pid 7282] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [ 245.096326][ T7280] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.096522][ T7281] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.123107][ T7281] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 245.124360][ T7283] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7282] ioctl(4, LOOP_SET_FD, 3 [pid 5070] umount2("./181", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5070] openat(AT_FDCWD, "./181", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7282] <... ioctl resumed>) = 0 [pid 7282] close(3 [pid 5070] <... openat resumed>) = 3 [pid 7282] <... close resumed>) = 0 [pid 5070] fstat(3, [pid 7282] mkdir("./file0", 0777) = 0 [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7282] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [ 245.146609][ T7283] REISERFS (device loop3): found reiserfs format "3.6" with non-standard journal [ 245.156504][ T7282] loop5: detected capacity change from 0 to 8192 [ 245.164220][ T7281] REISERFS (device loop4): using ordered data mode [ 245.164789][ T7283] REISERFS (device loop3): using ordered data mode [ 245.171877][ T7281] reiserfs: using flush barriers [ 245.178748][ T7280] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 5070] getdents64(3, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5070] umount2("./181/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 245.184053][ T7281] 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 [ 245.210036][ T7281] REISERFS (device loop4): checking transaction log (loop4) [ 245.210382][ T7283] reiserfs: using flush barriers [ 245.217962][ T7280] REISERFS (device loop2): using ordered data mode [ 245.227847][ T7281] REISERFS (device loop4): Using r5 hash to sort names [ 245.229218][ T7280] reiserfs: using flush barriers [pid 7285] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./181/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7281] <... mount resumed>) = 0 [pid 7281] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7281] chdir("./file0") = 0 [ 245.235972][ T7281] REISERFS warning (device loop4): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.254150][ T7280] 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 [ 245.256360][ T7281] REISERFS (device loop4): Created .reiserfs_priv - reserved for xattr storage. [ 245.270504][ T7283] 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 7281] ioctl(4, LOOP_CLR_FD) = 0 [pid 7281] close(4 [pid 5070] unlink("./181/binderfs") = 0 [pid 5070] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7285] <... write resumed>) = 4194304 [pid 7281] <... close resumed>) = 0 [pid 7281] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7281] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7281] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7281] mount(NULL, "./bus", NULL, 0, NULL [pid 7285] munmap(0x7f8a1b2e3000, 4194304 [pid 7281] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7281] exit_group(0) = ? [pid 7281] +++ exited with 0 +++ [pid 7285] <... munmap resumed>) = 0 [pid 5073] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7281, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [ 245.295923][ T7282] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 245.332223][ T7282] REISERFS (device loop5): found reiserfs format "3.6" with non-standard journal [ 245.341700][ T7282] REISERFS (device loop5): using ordered data mode [pid 5073] umount2("./184", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 7285] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5073] openat(AT_FDCWD, "./184", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] umount2("./184/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5073] lstat("./184/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5073] unlink("./184/binderfs" [pid 7285] <... openat resumed>) = 4 [pid 5073] <... unlink resumed>) = 0 [pid 5073] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7285] ioctl(4, LOOP_SET_FD, 3) = 0 [ 245.349318][ T7282] reiserfs: using flush barriers [ 245.356170][ T7282] 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 [ 245.373144][ T7282] REISERFS (device loop5): checking transaction log (loop5) [ 245.377390][ T7280] REISERFS (device loop2): checking transaction log (loop2) [ 245.381598][ T7282] REISERFS (device loop5): Using r5 hash to sort names [ 245.394978][ T7285] loop0: detected capacity change from 0 to 8192 [pid 7285] close(3) = 0 [pid 7285] mkdir("./file0", 0777 [pid 7282] <... mount resumed>) = 0 [pid 7285] <... mkdir resumed>) = 0 [pid 7282] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 7285] mount("/dev/loop0", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7282] <... openat resumed>) = 3 [pid 7282] chdir("./file0") = 0 [ 245.401968][ T7282] REISERFS warning (device loop5): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.415578][ T7282] REISERFS (device loop5): Created .reiserfs_priv - reserved for xattr storage. [ 245.426013][ T7283] REISERFS (device loop3): checking transaction log (loop3) [ 245.436013][ T7283] REISERFS (device loop3): Using r5 hash to sort names [pid 7282] ioctl(4, LOOP_CLR_FD) = 0 [pid 7282] close(4) = 0 [pid 7282] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7282] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7282] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7282] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 5070] <... umount2 resumed>) = 0 [ 245.451025][ T7280] REISERFS (device loop2): Using r5 hash to sort names [ 245.471277][ T7283] REISERFS warning (device loop3): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.487271][ T7285] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7282] exit_group(0 [pid 5073] <... umount2 resumed>) = 0 [pid 5070] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7282] <... exit_group resumed>) = ? [pid 5073] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7283] <... mount resumed>) = 0 [pid 7282] +++ exited with 0 +++ [pid 5074] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7282, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} --- [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] lstat("./181/file0", [pid 5073] lstat("./184/file0", [pid 5070] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./186", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5070] umount2("./181/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] umount2("./184/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] openat(AT_FDCWD, "./186", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5073] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] <... openat resumed>) = 3 [pid 5073] openat(AT_FDCWD, "./184/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5070] openat(AT_FDCWD, "./181/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] fstat(3, [pid 5073] <... openat resumed>) = 4 [pid 5070] <... openat resumed>) = 4 [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(3, [pid 5070] fstat(4, [pid 5074] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5073] fstat(4, [pid 5070] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./186/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5070] getdents64(4, [pid 5073] getdents64(4, [pid 5074] lstat("./186/binderfs", [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5070] getdents64(4, [pid 5073] getdents64(4, [pid 5074] unlink("./186/binderfs" [pid 5073] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5070] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... unlink resumed>) = 0 [pid 5073] close(4 [pid 5070] close(4 [pid 5074] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5073] <... close resumed>) = 0 [pid 7283] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7283] chdir("./file0") = 0 [pid 7283] ioctl(4, LOOP_CLR_FD) = 0 [pid 7283] close(4) = 0 [pid 7283] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7283] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7283] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 5070] <... close resumed>) = 0 [ 245.490955][ T7280] REISERFS warning (device loop2): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [ 245.506141][ T7285] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 245.514785][ T7283] REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage. [ 245.540873][ T7280] REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. [pid 5073] rmdir("./184/file0" [pid 7283] mount(NULL, "./bus", NULL, 0, NULL [pid 5073] <... rmdir resumed>) = 0 [pid 5070] rmdir("./181/file0" [pid 5073] getdents64(3, [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5070] getdents64(3, [pid 5073] close(3 [pid 5070] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5073] <... close resumed>) = 0 [pid 5070] close(3 [pid 5073] rmdir("./184" [pid 5070] <... close resumed>) = 0 [pid 5073] <... rmdir resumed>) = 0 [pid 5073] mkdir("./185", 0777 [pid 5070] rmdir("./181" [pid 5073] <... mkdir resumed>) = 0 [pid 5073] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5070] <... rmdir resumed>) = 0 [pid 5073] <... openat resumed>) = 3 [pid 5070] mkdir("./182", 0777 [pid 5073] ioctl(3, LOOP_CLR_FD [pid 5070] <... mkdir resumed>) = 0 [pid 5073] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5073] close(3) = 0 [pid 5070] <... openat resumed>) = 3 [pid 5073] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5070] ioctl(3, LOOP_CLR_FD [pid 7280] <... mount resumed>) = 0 [pid 7280] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 7280] chdir("./file0") = 0 [pid 7280] ioctl(4, LOOP_CLR_FD) = 0 [pid 7280] close(4) = 0 [pid 7280] mkdir(NULL, 000) = -1 EFAULT (Bad address) [ 245.551353][ T7285] REISERFS (device loop0): using ordered data mode [ 245.558416][ T7285] reiserfs: using flush barriers [ 245.564811][ T7285] 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 [ 245.585636][ T7285] REISERFS (device loop0): checking transaction log (loop0) [pid 7280] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7280] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7280] mount(NULL, "./bus", NULL, 0, NULL [pid 5070] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5073] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7291 [pid 5070] close(3) = 0 [pid 5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7280] <... mount resumed>) = -1 ENOENT (No such file or directory) ./strace-static-x86_64: Process 7292 attached ./strace-static-x86_64: Process 7291 attached [pid 7283] <... mount resumed>) = -1 ENOENT (No such file or directory) [pid 7280] exit_group(0 [pid 5070] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7292 [pid 7292] chdir("./182" [pid 7283] exit_group(0 [pid 7280] <... exit_group resumed>) = ? [pid 7291] chdir("./185" [pid 7280] +++ exited with 0 +++ [pid 5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7280, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=15 /* 0.15 s */} --- [pid 7283] <... exit_group resumed>) = ? [pid 7292] <... chdir resumed>) = 0 [pid 5071] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] openat(AT_FDCWD, "./182", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7292] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7291] <... chdir resumed>) = 0 [pid 7283] +++ exited with 0 +++ [pid 5071] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7292] <... prctl resumed>) = 0 [pid 5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7283, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} --- [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7292] setpgid(0, 0 [pid 7291] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5071] lstat("./182/binderfs", [pid 7292] <... setpgid resumed>) = 0 [pid 7291] <... prctl resumed>) = 0 [pid 5072] umount2("./182", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5071] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7291] setpgid(0, 0 [pid 5071] unlink("./182/binderfs" [pid 7291] <... setpgid resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./182", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] <... unlink resumed>) = 0 [pid 5072] <... openat resumed>) = 3 [pid 5071] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] fstat(3, [pid 7292] <... openat resumed>) = 3 [pid 7291] <... openat resumed>) = 3 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [ 245.599226][ T7285] REISERFS (device loop0): Using r5 hash to sort names [ 245.621728][ T7285] REISERFS warning (device loop0): jdm-13090 reiserfs_new_inode: ACLs aren't enabled in the fs, but vfs thinks they are! [pid 7292] write(3, "1000", 4 [pid 7291] write(3, "1000", 4 [pid 5072] getdents64(3, [pid 7292] <... write resumed>) = 4 [pid 7291] <... write resumed>) = 4 [pid 7292] close(3 [pid 7291] close(3 [pid 5072] <... getdents64 resumed>0x555556cae620 /* 4 entries */, 32768) = 112 [pid 7292] <... close resumed>) = 0 [pid 7291] <... close resumed>) = 0 [pid 5072] umount2("./182/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7292] symlink("/dev/binderfs", "./binderfs" [pid 7291] symlink("/dev/binderfs", "./binderfs" [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7292] <... symlink resumed>) = 0 [pid 7291] <... symlink resumed>) = 0 [pid 5072] lstat("./182/binderfs", [pid 7292] memfd_create("syzkaller", 0 [pid 5072] <... lstat resumed>{st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 7291] memfd_create("syzkaller", 0 [pid 5072] unlink("./182/binderfs" [pid 7292] <... memfd_create resumed>) = 3 [pid 7291] <... memfd_create resumed>) = 3 [pid 7285] <... mount resumed>) = 0 [pid 7292] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7291] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7285] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 5072] <... unlink resumed>) = 0 [pid 7292] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 7291] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7285] <... openat resumed>) = 3 [pid 7285] chdir("./file0") = 0 [pid 7285] ioctl(4, LOOP_CLR_FD) = 0 [ 245.644723][ T7285] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [pid 7285] close(4) = 0 [pid 7285] mkdir(NULL, 000) = -1 EFAULT (Bad address) [pid 7285] openat(AT_FDCWD, "blkio.bfq.io_service_bytes_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 7285] fsconfig(-1, FSCONFIG_SET_FLAG, "dirsync", NULL, 0) = -1 EINVAL (Invalid argument) [pid 7285] mount(NULL, "./bus", NULL, 0, NULL) = -1 ENOENT (No such file or directory) [pid 7285] exit_group(0) = ? [pid 7285] +++ exited with 0 +++ [pid 5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7285, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} --- [pid 5069] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 5074] <... umount2 resumed>) = 0 [pid 5069] umount2("./178", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./178", 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, 0x555556cae620 /* 4 entries */, 32768) = 112 [pid 5069] umount2("./178/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5069] lstat("./178/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 [pid 5069] unlink("./178/binderfs") = 0 [pid 5069] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5072] <... umount2 resumed>) = 0 [pid 5074] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5074] lstat("./186/file0", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] umount2("./186/file0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 5071] <... umount2 resumed>) = 0 [pid 5074] openat(AT_FDCWD, "./186/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5071] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... openat resumed>) = 4 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] fstat(4, [pid 5071] lstat("./182/file0", [pid 5074] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5071] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] getdents64(4, [pid 5071] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5074] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5071] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5074] getdents64(4, 0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5071] openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5074] close(4 [pid 5071] <... openat resumed>) = 4 [pid 5074] <... close resumed>) = 0 [pid 5071] fstat(4, [pid 5074] rmdir("./186/file0" [pid 5071] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] getdents64(4, [pid 5074] getdents64(3, [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5074] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5071] getdents64(4, [pid 5074] close(3 [pid 5071] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] close(4 [pid 5074] rmdir("./186" [pid 5071] <... close resumed>) = 0 [pid 5074] <... rmdir resumed>) = 0 [pid 5071] rmdir("./182/file0" [pid 5074] mkdir("./187", 0777 [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... mkdir resumed>) = 0 [pid 5071] getdents64(3, [pid 5074] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5071] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5074] <... openat resumed>) = 3 [pid 5071] close(3 [pid 5074] ioctl(3, LOOP_CLR_FD [pid 5071] <... close resumed>) = 0 [pid 5074] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5071] rmdir("./182" [pid 5074] close(3 [pid 5071] <... rmdir resumed>) = 0 [pid 5074] <... close resumed>) = 0 [pid 5071] mkdir("./183", 0777 [pid 5074] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5071] <... mkdir resumed>) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 5074] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7293 [pid 5071] <... openat resumed>) = 3 [pid 5071] ioctl(3, LOOP_CLR_FD) = 0 [pid 5071] close(3 [pid 7291] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 5069] <... umount2 resumed>) = 0 [pid 5071] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7294 ./strace-static-x86_64: Process 7293 attached [pid 5069] umount2("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW./strace-static-x86_64: Process 7294 attached [pid 7293] chdir("./187" [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7294] chdir("./183" [pid 7293] <... chdir resumed>) = 0 [pid 7294] <... chdir resumed>) = 0 [pid 7293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5069] lstat("./178/file0", [pid 7294] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7293] <... prctl resumed>) = 0 [pid 5069] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7294] <... prctl resumed>) = 0 [pid 7293] setpgid(0, 0 [pid 7292] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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("./178/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 7294] setpgid(0, 0 [pid 7293] <... setpgid resumed>) = 0 [pid 5072] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 7294] <... setpgid resumed>) = 0 [pid 7293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] openat(AT_FDCWD, "./178/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 7294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7293] <... openat resumed>) = 3 [pid 5072] lstat("./182/file0", [pid 5069] <... openat resumed>) = 4 [pid 7294] <... openat resumed>) = 3 [pid 7293] write(3, "1000", 4 [pid 5072] <... lstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] fstat(4, [pid 7294] write(3, "1000", 4 [pid 7293] <... write resumed>) = 4 [pid 5072] umount2("./182/file0", MNT_DETACH|UMOUNT_NOFOLLOW [pid 5069] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 7294] <... write resumed>) = 4 [pid 7293] close(3 [pid 5072] <... umount2 resumed>) = -1 EINVAL (Invalid argument) [pid 5069] getdents64(4, [pid 7294] close(3 [pid 7293] <... close resumed>) = 0 [pid 5072] openat(AT_FDCWD, "./182/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 7294] <... close resumed>) = 0 [pid 7293] symlink("/dev/binderfs", "./binderfs" [pid 5069] getdents64(4, [pid 7294] symlink("/dev/binderfs", "./binderfs" [pid 7293] <... symlink resumed>) = 0 [pid 5069] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 7294] <... symlink resumed>) = 0 [pid 7293] memfd_create("syzkaller", 0 [pid 5069] close(4 [pid 7294] memfd_create("syzkaller", 0 [pid 7293] <... memfd_create resumed>) = 3 [pid 5072] <... openat resumed>) = 4 [pid 5069] <... close resumed>) = 0 [pid 7294] <... memfd_create resumed>) = 3 [pid 7293] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5072] fstat(4, [pid 5069] rmdir("./178/file0" [pid 7294] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7293] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] <... fstat resumed>{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 7294] <... mmap resumed>) = 0x7f8a1b2e3000 [pid 5072] getdents64(4, [pid 5069] getdents64(3, [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 2 entries */, 32768) = 48 [pid 5069] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5072] getdents64(4, [pid 5069] close(3 [pid 5072] <... getdents64 resumed>0x555556cb6660 /* 0 entries */, 32768) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] close(4 [pid 5069] rmdir("./178" [pid 5072] <... close resumed>) = 0 [pid 5069] <... rmdir resumed>) = 0 [pid 5072] rmdir("./182/file0" [pid 5069] mkdir("./179", 0777 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... mkdir resumed>) = 0 [pid 5072] getdents64(3, [pid 5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5072] <... getdents64 resumed>0x555556cae620 /* 0 entries */, 32768) = 0 [pid 5069] <... openat resumed>) = 3 [pid 5072] close(3 [pid 5069] ioctl(3, LOOP_CLR_FD [pid 5072] <... close resumed>) = 0 [pid 5069] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5072] rmdir("./182" [pid 5069] close(3 [pid 5072] <... rmdir resumed>) = 0 [pid 5069] <... close resumed>) = 0 [pid 5072] mkdir("./183", 0777 [pid 5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5072] <... mkdir resumed>) = 0 [pid 5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5069] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7295 [pid 5072] <... openat resumed>) = 3 [pid 5072] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 7295 attached ) = -1 ENXIO (No such device or address) [pid 7295] chdir("./179" [pid 5072] close(3 [pid 7295] <... chdir resumed>) = 0 [pid 7291] <... write resumed>) = 4194304 [pid 5072] <... close resumed>) = 0 [pid 7295] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7291] munmap(0x7f8a1b2e3000, 4194304 [pid 5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 7295] <... prctl resumed>) = 0 [pid 7291] <... munmap resumed>) = 0 [pid 7295] setpgid(0, 0 [pid 7291] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 7296 attached [pid 7295] <... setpgid resumed>) = 0 [pid 7292] <... write resumed>) = 4194304 [pid 7291] <... openat resumed>) = 4 [pid 5072] <... clone resumed>, child_tidptr=0x555556cad5d0) = 7296 [pid 7296] chdir("./183" [pid 7295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7293] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7292] munmap(0x7f8a1b2e3000, 4194304 [pid 7291] ioctl(4, LOOP_SET_FD, 3 [pid 7296] <... chdir resumed>) = 0 [pid 7295] <... openat resumed>) = 3 [pid 7294] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7292] <... munmap resumed>) = 0 [pid 7291] <... ioctl resumed>) = 0 [pid 7296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 7295] write(3, "1000", 4 [pid 7292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 7291] close(3 [pid 7296] <... prctl resumed>) = 0 [pid 7295] <... write resumed>) = 4 [pid 7292] <... openat resumed>) = 4 [pid 7291] <... close resumed>) = 0 [pid 7296] setpgid(0, 0 [pid 7295] close(3 [pid 7292] ioctl(4, LOOP_SET_FD, 3 [pid 7291] mkdir("./file0", 0777 [pid 7296] <... setpgid resumed>) = 0 [pid 7295] <... close resumed>) = 0 [pid 7291] <... mkdir resumed>) = 0 [pid 7296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 7295] symlink("/dev/binderfs", "./binderfs" [pid 7292] <... ioctl resumed>) = 0 [pid 7291] mount("/dev/loop4", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7296] <... openat resumed>) = 3 [pid 7295] <... symlink resumed>) = 0 [pid 7292] close(3 [pid 7296] write(3, "1000", 4 [pid 7295] memfd_create("syzkaller", 0 [pid 7292] <... close resumed>) = 0 [pid 7296] <... write resumed>) = 4 [pid 7295] <... memfd_create resumed>) = 3 [pid 7292] mkdir("./file0", 0777 [pid 7296] close(3 [pid 7295] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 7292] <... mkdir resumed>) = 0 [pid 7296] <... close resumed>) = 0 [pid 7295] <... mmap resumed>) = 0x7f8a1b2e3000 [ 245.947576][ T7291] loop4: detected capacity change from 0 to 8192 [ 245.957917][ T7292] loop1: detected capacity change from 0 to 8192 [pid 7292] mount("/dev/loop1", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7296] symlink("/dev/binderfs", "./binderfs" [pid 7293] <... write resumed>) = 4194304 [pid 7296] <... symlink resumed>) = 0 [pid 7296] memfd_create("syzkaller", 0) = 3 [pid 7296] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8a1b2e3000 [pid 7294] <... write resumed>) = 4194304 [pid 7293] munmap(0x7f8a1b2e3000, 4194304 [pid 7294] munmap(0x7f8a1b2e3000, 4194304 [pid 7293] <... munmap resumed>) = 0 [pid 7294] <... munmap resumed>) = 0 [pid 7293] openat(AT_FDCWD, "/dev/loop5", O_RDWR [ 245.988052][ T7291] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.002077][ T7292] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [pid 7296] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7294] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 7293] <... openat resumed>) = 4 [pid 7294] <... openat resumed>) = 4 [pid 7293] ioctl(4, LOOP_SET_FD, 3 [pid 7294] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 7294] close(3) = 0 [pid 7294] mkdir("./file0", 0777) = 0 [pid 7294] mount("/dev/loop2", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7293] <... ioctl resumed>) = 0 [pid 7293] close(3) = 0 [ 246.042731][ T7292] REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal [ 246.047612][ T7293] loop5: detected capacity change from 0 to 8192 [ 246.059796][ T7294] loop2: detected capacity change from 0 to 8192 [pid 7296] <... write resumed>) = 4194304 [pid 7293] mkdir("./file0", 0777) = 0 [pid 7293] mount("/dev/loop5", "./file0", "reiserfs", MS_DIRSYNC|MS_POSIXACL, "" [pid 7295] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 4194304 [pid 7296] munmap(0x7f8a1b2e3000, 4194304) = 0 [ 246.081808][ T7294] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 246.082827][ T7291] REISERFS (device loop4): found reiserfs format "3.6" with non-standard journal [ 246.104714][ T7291] REISERFS (device loop4): using ordered data mode [ 246.108927][ T7292] REISERFS (device loop1): using ordered data mode [ 246.117866][ T7291] reiserfs: using flush barriers [ 246.123901][ T7294] REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal [pid 7296] openat(AT_FDCWD, "/dev/loop3", O_RDWR)