提交 de3997a7 编写于 作者: J J. Bruce Fields

nfsd4: buffer-length check for SUPPATTR_EXCLCREAT

This was an omission from 8c18f205
"nfsd41: SUPPATTR_EXCLCREAT attribute".

Cc: Benny Halevy <bhalevy@primarydata.com>
Cc: stable@vger.kernel.org
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
上级 1406b916
......@@ -2483,6 +2483,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
goto out;
}
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
if ((buflen -= 16) < 0)
goto out_resource;
WRITE32(3);
WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD0);
WRITE32(NFSD_SUPPATTR_EXCLCREAT_WORD1);
......
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