When ext4_find_entry() falls back to "searching the old fashioned way" due to a corrupt dx dir, it needs to reset the error code to NULL so that the nonstandard ERR_BAD_DX_DIR code isn't returned to userspace. https://bugzilla.kernel.org/show_bug.cgi?id=199947 Reported-by: Anatoly Trosinenko <anatoly.trosinenko@xxxxxxxxxx> Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> --- diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index b1f21e3a0763..559b2b9d392a 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1398,6 +1400,7 @@ static struct buffer_head * ext4_find_entry (struct inode *dir, goto cleanup_and_exit; dxtrace(printk(KERN_DEBUG "ext4_find_entry: dx failed, " "falling back\n")); + ret = NULL; } nblocks = dir->i_size >> EXT4_BLOCK_SIZE_BITS(sb); if (!nblocks) {
