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Date: Mon, 26 Sep 2022 12:12:33 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, "Darrick J. Wong" <darrick.wong@...cle.com>, Dave Chinner <dchinner@...hat.com>, Christoph Hellwig <hch@....de>, "Darrick J. Wong" <djwong@...nel.org>, Chandan Babu R <chandan.babu@...cle.com> Subject: [PATCH 5.4 120/120] xfs: fix use-after-free when aborting corrupt attr inactivation From: "Darrick J. Wong" <darrick.wong@...cle.com> commit 496b9bcd62b0b3a160be61e3265a086f97adcbd3 upstream. Log the corrupt buffer before we release the buffer. Fixes: a5155b870d687 ("xfs: always log corruption errors") Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com> Reviewed-by: Dave Chinner <dchinner@...hat.com> Reviewed-by: Christoph Hellwig <hch@....de> Acked-by: Darrick J. Wong <djwong@...nel.org> Signed-off-by: Chandan Babu R <chandan.babu@...cle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- fs/xfs/xfs_attr_inactive.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/xfs/xfs_attr_inactive.c +++ b/fs/xfs/xfs_attr_inactive.c @@ -209,8 +209,8 @@ xfs_attr3_node_inactive( * Since this code is recursive (gasp!) we must protect ourselves. */ if (level > XFS_DA_NODE_MAXDEPTH) { - xfs_trans_brelse(*trans, bp); /* no locks for later trans */ xfs_buf_corruption_error(bp); + xfs_trans_brelse(*trans, bp); /* no locks for later trans */ return -EFSCORRUPTED; }
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