diff mbox series

[05/12] xfs: assert a valid limit in xfs_rtfind_forw

Message ID 172530105798.3325146.17687169972955086973.stgit@frogsfrogsfrogs (mailing list archive)
State Accepted, archived
Headers show
Series [01/12] xfs: remove xfs_validate_rtextents | expand

Commit Message

Darrick J. Wong Sept. 2, 2024, 6:25 p.m. UTC 
From: Christoph Hellwig <hch@lst.de>

Protect against developers passing stupid limits when refactoring the
RT code once again.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/xfs/libxfs/xfs_rtbitmap.c |    2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index 9feeefe53948..4de97c4e8ebd 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -315,6 +315,8 @@  xfs_rtfind_forw(
 	xfs_rtword_t		incore;
 	unsigned int		word;	/* word number in the buffer */
 
+	ASSERT(start <= limit);
+
 	/*
 	 * Compute and read in starting bitmap block for starting block.
 	 */