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fs/ntfs3: Break dir enumeration if directory contents error

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commit 302e9dca84 upstream.

If we somehow attempt to read beyond the directory size, an error
is supposed to be returned.

However, in some cases, read requests do not stop and instead enter
into a loop.

To avoid this, we set the position in the directory to the end.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konstantin Komarov 2024-04-23 17:21:58 +03:00 committed by Greg Kroah-Hartman
parent 84906740dc
commit 579a0c6979
1 changed files with 1 additions and 0 deletions
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fs/ntfs3/dir.c
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@ -475,6 +475,7 @@ static int ntfs_readdir(struct file *file, struct dir_context *ctx)
vbo = (u64)bit << index_bits;
if (vbo >= i_size) {
ntfs_inode_err(dir, "Looks like your dir is corrupt");
ctx->pos = eod;
err = -EINVAL;
goto out;
}