diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2014-01-28 16:05:15 -0500 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-04-30 16:23:23 +0100 |
| commit | c674ae0967fa888e35c173a5026001dfdc0493c8 (patch) | |
| tree | fdf5975c7a1cd9f0cb38da0b41f6ad41f315a620 | |
| parent | 5bb8af45843a01663197cfc41afa9c30c350cc07 (diff) | |
nfsd4: buffer-length check for SUPPATTR_EXCLCREAT
commit de3997a7eeb9ea286b15879fdf8a95aae065b4f7 upstream.
This was an omission from 8c18f2052e756e7d5dea712fc6e7ed70c00e8a39
"nfsd41: SUPPATTR_EXCLCREAT attribute".
Cc: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index ade5316d0cf5..4835b90d4180 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2413,6 +2413,8 @@ out_acl: WRITE64(stat.ino); } 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); |