diff options
| author | Gary Lockyer <gary@catalyst.net.nz> | 2019-05-24 11:00:05 +1200 |
|---|---|---|
| committer | Gary Lockyer <gary@samba.org> | 2019-05-27 01:29:48 +0000 |
| commit | 412afb2aef100e09eb433b8f0cae064fc2a736b7 (patch) | |
| tree | 2a3eedf4bbb4bc450d31652a7d765762237c4807 /source4/ntvfs | |
| parent | da87fa998ab71328f30bcdf5b41aee8675aee48a (diff) | |
| download | samba-412afb2aef100e09eb433b8f0cae064fc2a736b7.tar.gz | |
Fix ubsan null pointer passed as argument 2
Fix ubsan warning null pointer passed as argument 2 when the source
pointer is NULL. The calls to memcpy are now guarded by an
if (len > 0)
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Gary Lockyer <gary@samba.org>
Autobuild-Date(master): Mon May 27 01:29:48 UTC 2019 on sn-devel-184
Diffstat (limited to 'source4/ntvfs')
| -rw-r--r-- | source4/ntvfs/common/brlock_tdb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/source4/ntvfs/common/brlock_tdb.c b/source4/ntvfs/common/brlock_tdb.c index 56cf26c70b9..77a864af328 100644 --- a/source4/ntvfs/common/brlock_tdb.c +++ b/source4/ntvfs/common/brlock_tdb.c @@ -365,7 +365,9 @@ static NTSTATUS brl_tdb_lock(struct brl_context *brl, status = NT_STATUS_NO_MEMORY; goto fail; } - memcpy(locks, dbuf.dptr, dbuf.dsize); + if (dbuf.dsize > 0) { + memcpy(locks, dbuf.dptr, dbuf.dsize); + } locks[count] = lock; dbuf.dptr = (unsigned char *)locks; |