[ Upstream commit e02a53d92e197706cad1627bd84705d4aa20a145 ]
iattr is passed to v9fs_vfs_setattr_dotl which does send various values from iattr over the wire, even if it tells the server to only look at iattr.ia_valid fields this could leak some stack data.
Link: http://lkml.kernel.org/r/1536339057-21974-2-git-send-email-asmadeus@codewrec... Addresses-Coverity-ID: 1195601 ("Uninitalized scalar variable") Signed-off-by: Dominique Martinet dominique.martinet@cea.fr Signed-off-by: Sasha Levin sashal@kernel.org --- fs/9p/acl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/9p/acl.c b/fs/9p/acl.c index c30c6ceac2c4..d02ee4026e32 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -282,7 +282,7 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, switch (handler->flags) { case ACL_TYPE_ACCESS: if (acl) { - struct iattr iattr; + struct iattr iattr = { 0 }; struct posix_acl *old_acl = acl;
retval = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);