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NFSD: Error out when getting more than one fsloc/secinfo/uuid

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Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2014-05-24 11:19:57 +08:00 committed by J. Bruce Fields
parent 1f53146da9
commit be69da8052
1 changed files with 12 additions and 0 deletions
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12
fs/nfsd/export.c
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@ -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)