If mountd writes more fslocs or more uuids, just ignore and warn once.
Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
---
fs/nfsd/export.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 90d37b6..1d56ae3 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -394,6 +394,12 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
int len;
int migrated, i, err;
+ /* utils writes more fslocs than one */
+ if (fsloc->locations) {
+ WARN_ON_ONCE(1);
+ return 0;
+ }
+
/* listsize */
err = get_uint(mesg, &fsloc->locations_count);
if (err)
@@ -485,6 +491,12 @@ uuid_parse(char **mesg, char *buf, unsigned char **puuid)
{
int len;
+ /* utils writes more uuid than one */
+ if (*puuid) {
+ WARN_ON_ONCE(1);
+ return 0;
+ }
+
/* expect a 16 byte uuid encoded as \xXXXX... */
len = qword_get(mesg, buf, PAGE_SIZE);
if (len != EX_UUID_LEN)
--
1.9.0
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