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| author |   Chao Yu <yuchao0@huawei.com> | 2019-01-08 10:21:24 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2019-01-22 15:31:25 -0800 |
| commit | ddf06b753a8573eb0323d91efeaffe397f7b673d (patch) | |
| tree | 10fffee6d58a376cbb2c0f641746fdd0bae42e92 /fs/f2fs | |
| parent | f2fs: no need to check return value of debugfs_create functions (diff) | |
| download | linux-dev-ddf06b753a8573eb0323d91efeaffe397f7b673d.tar.xz linux-dev-ddf06b753a8573eb0323d91efeaffe397f7b673d.zip | |
f2fs: fix to trigger fsck if dirent.name_len is zero
While traversing dirents in f2fs_fill_dentries(), if bitmap is valid,
filename length should not be zero, otherwise, directory structure
consistency could be corrupted, in this case, let's print related
info and set SBI_NEED_FSCK to trigger fsck for repairing.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/dir.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 50d0d36280fa..926166528cd4 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -800,6 +800,10 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d, if (de->name_len == 0) { bit_pos++; ctx->pos = start_pos + bit_pos; + printk_ratelimited( + "%s, invalid namelen(0), ino:%u, run fsck to fix.", + KERN_WARNING, le32_to_cpu(de->ino)); + set_sbi_flag(sbi, SBI_NEED_FSCK); continue; } |