On Tue, 06 May 2025 09:20:06 +0800, Zhang Yi wrote:
> Punching a hole with a start offset that exceeds max_end is not
> permitted and will result in a negative length in the
> truncate_inode_partial_folio() function while truncating the page cache,
> potentially leading to undesirable consequences.
>
> A simple reproducer:
>
> [...]
Applied, thanks!
[1/4] ext4: fix out of bounds punch offset
commit: b5e58bcd79625423487fa3ecba8e8411b5396327
[2/4] ext4: fix incorrect punch max_end
commit: 29ec9bed2395061350249ae356fb300dd82a78e7
[3/4] ext4: factor out ext4_get_maxbytes()
commit: dbe27f06fa38b9bfc598f8864ae1c5d5831d9992
[4/4] ext4: ensure i_size is smaller than maxbytes
commit: 1a77a028a392fab66dd637cdfac3f888450d00af
Best regards,
--
Theodore Ts'o <tytso@xxxxxxx>
