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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: <stable@vger.kernel.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2022-10-14 18:50:20 -05:00
parent b854b4ee66
commit f09bd695af
1 changed files with 2 additions and 1 deletions
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3
fs/cifs/smb2pdu.c
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@ -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);