Re: [PATCH v2] ext4: validate ea_ino and size in check_xattrs

[Theodore Ts'o]

On Tue, 23 Sep 2025 19:02:45 +0530, Deepanshu Kartikey wrote:
> During xattr block validation, check_xattrs() processes xattr entries
> without validating that entries claiming to use EA inodes have non-zero
> sizes. Corrupted filesystems may contain xattr entries where e_value_size
> is zero but e_value_inum is non-zero, indicating invalid xattr data.
> 
> Add validation in check_xattrs() to detect this corruption pattern early
> and return -EFSCORRUPTED, preventing invalid xattr entries from causing
> issues throughout the ext4 codebase.
> 
> [...]

Applied, thanks!

[1/1] ext4: validate ea_ino and size in check_xattrs
      commit: 44d2a72f4d64655f906ba47a5e108733f59e6f28

Best regards,
-- 
Theodore Ts'o <tytso@xxxxxxx>