This is a note to let you know that I've just added the patch titled xfs: fix xfs_bmap_validate_extent_raw when checking attr fork of rt files to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: xfs-fix-xfs_bmap_validate_extent_raw-when-checking-a.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b53a3bdf2d01bf35afb850197184e6773fbdb455 Author: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Date: Wed Sep 2 10:47:02 2020 -0700 xfs: fix xfs_bmap_validate_extent_raw when checking attr fork of rt files [ Upstream commit d0c20d38af135b2b4b90aa59df7878ef0c8fbef4 ] The realtime flag only applies to the data fork, so don't use the realtime block number checks on the attr fork of a realtime file. Fixes: 30b0984d9117 ("xfs: refactor bmap record validation") Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 0b7145fdb8aa1..f35e1801f1c90 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -6130,7 +6130,7 @@ xfs_bmap_validate_extent( isrt = XFS_IS_REALTIME_INODE(ip); endfsb = irec->br_startblock + irec->br_blockcount - 1; - if (isrt) { + if (isrt && whichfork == XFS_DATA_FORK) { if (!xfs_verify_rtbno(mp, irec->br_startblock)) return __this_address; if (!xfs_verify_rtbno(mp, endfsb))