xfs: check di_forkoff correctly in scrub

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The di_forkoff check in xchk_dinode is incorrect, according to LOLLM.
XFS_DFORK_BOFF returns a byte count relative to the start of the literal
area, not the start of the inode.  Therefore, this check won't flag
di_forkoff values that are larger than the literal area but not the
inode size itself.  Fix this check; sadly the old APTR code was correct.

Cc: stable@vger.kernel.org # v6.8
Fixes: 6b5d917780 ("xfs: dont cast to char * for XFS_DFORK_*PTR macros")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Assisted-by: LOLLM # finding obvious bugs
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

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Darrick J. Wong 2026-09-10 22:54:58 -07:00 • committed by Carlos Maiolino

parent c54110d814

commit e9193f2f1c

1 changed files with 1 additions and 1 deletions

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fs/xfs/scrub/inode.c

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