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>
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@ -389,6 +389,10 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
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int len;
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int migrated, i, err;
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/* more than one fsloc */
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if (fsloc->locations)
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return -EINVAL;
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/* listsize */
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err = get_uint(mesg, &fsloc->locations_count);
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if (err)
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@ -442,6 +446,10 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
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u32 listsize;
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int err;
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/* more than one secinfo */
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if (exp->ex_nflavors)
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return -EINVAL;
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err = get_uint(mesg, &listsize);
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if (err)
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return err;
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@ -481,6 +489,10 @@ uuid_parse(char **mesg, char *buf, unsigned char **puuid)
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{
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int len;
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/* more than one uuid */
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if (*puuid)
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return -EINVAL;
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/* expect a 16 byte uuid encoded as \xXXXX... */
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len = qword_get(mesg, buf, PAGE_SIZE);
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if (len != EX_UUID_LEN)
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