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xfs: dquot recovery does not validate the recovered dquot 

commit 9c235dfc3d upstream.

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>
Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
Acked-by: Chandan Babu R <chandanbabu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Darrick J. Wong 2024-02-08 15:20:52 -08:00 committed by Greg Kroah-Hartman
parent d744e57880
commit 3581868f51
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;