diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2014-01-28 16:05:15 -0500 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-05-15 09:55:06 +0200 |
| commit | 0500e9a3b487fd8de16315a687a58c179b1354e7 (patch) | |
| tree | e96739a817814f25e92336c1ab8676755e0d7ab1 /fs | |
| parent | 0ca6add471b10cc5a3570fe1c5c8093032a5b88b (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: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'fs')
| -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 ecc735e30bea..0407ba4990e0 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2502,6 +2502,8 @@ out_acl: 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); |