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xfs: dquot recovery does not validate the recovered dquot 

When we're recovering ondisk quota records from the log, we need to
validate the recovered buffer contents before writing them to disk.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
This commit is contained in:
Darrick J. Wong 2023-11-20 10:31:44 -08:00 committed by Chandan Babu R
parent ed17f7da5f
commit 9c235dfc3d
1 changed files with 14 additions and 0 deletions
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14
fs/xfs/xfs_dquot_item_recover.c
View File

@ -19,6 +19,7 @@
#include "xfs_log.h"
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"
#include "xfs_error.h"
STATIC void
xlog_recover_dquot_ra_pass2(
@ -152,6 +153,19 @@ xlog_recover_dquot_commit_pass2(
XFS_DQUOT_CRC_OFF);
}
/* Validate the recovered dquot. */
fa = xfs_dqblk_verify(log->l_mp, dqb, dq_f->qlf_id);
if (fa) {
XFS_CORRUPTION_ERROR("Bad dquot after recovery",
XFS_ERRLEVEL_LOW, mp, dqb,
sizeof(struct xfs_dqblk));
xfs_alert(mp,
"Metadata corruption detected at %pS, dquot 0x%x",
fa, dq_f->qlf_id);
error = -EFSCORRUPTED;
goto out_release;
}
ASSERT(dq_f->qlf_size == 2);
ASSERT(bp->b_mount == mp);
bp->b_flags |= _XBF_LOGRECOVERY;