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-rw-r--r--fs/cifs/smb2file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index f9e766f464be..b2aff0c6f22c 100644
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -260,7 +260,7 @@ smb2_push_mandatory_locks(struct cifsFileInfo *cfile)
* and check it for zero before using.
*/
max_buf = tlink_tcon(cfile->tlink)->ses->server->maxBuf;
- if (!max_buf) {
+ if (max_buf < sizeof(struct smb2_lock_element)) {
free_xid(xid);
return -EINVAL;
}