From f09bd695af3b8ab46fc24e5d6954a24104c38387 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 14 Oct 2022 18:50:20 -0500 Subject: [PATCH] smb3: must initialize two ACL struct fields to zero Coverity spotted that we were not initalizing Stbz1 and Stbz2 to zero in create_sd_buf. Addresses-Coverity: 1513848 ("Uninitialized scalar variable") Cc: Reviewed-by: Paulo Alcantara (SUSE) Signed-off-by: Steve French --- fs/cifs/smb2pdu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index e1162217ad1a..f8f89ff96c5d 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2420,7 +2420,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len) unsigned int acelen, acl_size, ace_count; unsigned int owner_offset = 0; unsigned int group_offset = 0; - struct smb3_acl acl; + struct smb3_acl acl = {}; *len = round_up(sizeof(struct crt_sd_ctxt) + (sizeof(struct cifs_ace) * 4), 8); @@ -2493,6 +2493,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len) acl.AclRevision = ACL_REVISION; /* See 2.4.4.1 of MS-DTYP */ acl.AclSize = cpu_to_le16(acl_size); acl.AceCount = cpu_to_le16(ace_count); + /* acl.Sbz1 and Sbz2 MBZ so are not set here, but initialized above */ memcpy(aclptr, &acl, sizeof(struct smb3_acl)); buf->ccontext.DataLength = cpu_to_le32(ptr - (__u8 *)&buf->sd);