From: Steve French Date: Fri, 14 Oct 2022 23:50:20 +0000 (-0500) Subject: smb3: must initialize two ACL struct fields to zero X-Git-Tag: baikal/aarch64/sdk6.1~2814^2~3 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=0156c6aedd435b56bded76637f663147e0d4f8a6;p=kernel.git 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 --- diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index e1162217ad1a6..f8f89ff96c5d1 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);