diff options
Diffstat (limited to 'source3/locking')
| -rw-r--r-- | source3/locking/brlock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/source3/locking/brlock.c b/source3/locking/brlock.c index b021293c7b..22c6c9e5b3 100644 --- a/source3/locking/brlock.c +++ b/source3/locking/brlock.c @@ -333,6 +333,11 @@ NTSTATUS brl_lock_windows_default(struct byte_range_lock *br_lck, SMB_ASSERT(plock->lock_type != UNLOCK_LOCK); for (i=0; i < br_lck->num_locks; i++) { + if (locks[i].start + locks[i].size < locks[i].start) { + /* 64-bit wrap. Error. */ + return NT_STATUS_INVALID_LOCK_RANGE; + } + /* Do any Windows or POSIX locks conflict ? */ if (brl_conflict(&locks[i], plock)) { /* Remember who blocked us. */ |