tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
CIFS: fix max ea value size
It should not be larger then the slab max buf size. If user
specifies a larger size, it passes this check and goes
straightly to SMB2_set_info_init performing an insecure memcpy.
Signed-off-by: Murphy Zhou <jencce.kernel@gmail.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
authored by
Murphy Zhou
and committed by
Steve French
63d37fb4
8559ad8e
+1
-1
+1
-1
fs/cifs/xattr.c
+1
-1
fs/cifs/xattr.c
···
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#include "cifs_fs_sb.h"
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#include "cifs_unicode.h"
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-
#define MAX_EA_VALUE_SIZE 65535
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+
#define MAX_EA_VALUE_SIZE CIFSMaxBufSize
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#define CIFS_XATTR_CIFS_ACL "system.cifs_acl"
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#define CIFS_XATTR_ATTRIB "cifs.dosattrib" /* full name: user.cifs.dosattrib */
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#define CIFS_XATTR_CREATETIME "cifs.creationtime" /* user.cifs.creationtime */