diff options
| author | Kinglong Mee | 2014-05-24 11:19:57 +0800 |
|---|---|---|
| committer | J. Bruce Fields | 2014-05-30 17:32:25 -0400 |
| commit | be69da8052af38a9d72ed32fb765fd4446e4091c (patch) | |
| tree | b1b673b6f276a8eefbcaa984bd31cab5e5b2c62b | |
| parent | 1f53146da9cb2c941a3928320a6824d3b035455f (diff) | |
NFSD: Error out when getting more than one fsloc/secinfo/uuid
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/export.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index 788405107006..13b85f94d9e2 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -389,6 +389,10 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc) int len; int migrated, i, err; + /* more than one fsloc */ + if (fsloc->locations) + return -EINVAL; + /* listsize */ err = get_uint(mesg, &fsloc->locations_count); if (err) @@ -442,6 +446,10 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp) u32 listsize; int err; + /* more than one secinfo */ + if (exp->ex_nflavors) + return -EINVAL; + err = get_uint(mesg, &listsize); if (err) return err; @@ -481,6 +489,10 @@ uuid_parse(char **mesg, char *buf, unsigned char **puuid) { int len; + /* more than one uuid */ + if (*puuid) + return -EINVAL; + /* expect a 16 byte uuid encoded as \xXXXX... */ len = qword_get(mesg, buf, PAGE_SIZE); if (len != EX_UUID_LEN) |