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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-06-21 11:53:28 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-06-21 11:53:28 +1000 |
| commit | 128f24d5d9def3c47b6b659b2454f0426a347144 (patch) | |
| tree | d710ea5064f2301990475e8f6081e9e8313aaa74 | |
| parent | 479c641273df632478cda7fe76b833df64e319bc (diff) | |
| download | linux-128f24d5d9def3c47b6b659b2454f0426a347144.tar.bz2 | |
xfs: check for a valid error_tag in errortag_add
Currently we don't check the error_tag when someone's trying to set up
error injection testing. If userspace passes in a value we don't know
about, send back an error. This will help xfstests to _notrun a test
that uses error injection to test things like log replay.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
| -rw-r--r-- | fs/xfs/xfs_error.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c index 88693a98fac5..355619ae5e3e 100644 --- a/fs/xfs/xfs_error.c +++ b/fs/xfs/xfs_error.c @@ -61,6 +61,9 @@ xfs_errortag_add(int error_tag, xfs_mount_t *mp) int len; int64_t fsid; + if (error_tag >= XFS_ERRTAG_MAX) + return -EINVAL; + memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |