Unverified Commit ab5c423a authored Jul 03, 2024 by openeuler-ci-bot Committed by Gitee Jul 03, 2024

!9653 ecryptfs: Fix buffer size for tag 66 packet

Merge Pull Request from: @ci-robot 
 
PR sync from: Hui Tang <tanghui20@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/R7JPE767WCXE44PWLOM7Y4ROKUIX5M24/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6S9H 
 
Link:https://gitee.com/openeuler/kernel/pulls/9653

 

Reviewed-by: Zucheng Zheng <zhengzucheng@huawei.com>
Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>

parents e52c4ee3 dd5de9f6

fs/ecryptfs/keystore.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -314,9 +314,11 @@ write_tag_66_packet(char *signature, u8 cipher_code,
		* \| Key Identifier Size \| 1 or 2 bytes \|
		* \| Key Identifier \| arbitrary \|
		* \| File Encryption Key Size \| 1 or 2 bytes \|
		* \| Cipher Code \| 1 byte \|
		* \| File Encryption Key \| arbitrary \|
		* \| Checksum \| 2 bytes \|
		*/
		data_len = (5 + ECRYPTFS_SIG_SIZE_HEX + crypt_stat->key_size);
		data_len = (8 + ECRYPTFS_SIG_SIZE_HEX + crypt_stat->key_size);
		*packet = kmalloc(data_len, GFP_KERNEL);
		message = *packet;
		if (!message) {