Unverified Commit 39df8474 authored Jul 19, 2024 by openeuler-ci-bot Committed by Gitee Jul 19, 2024

!10104 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/53ASMKKTNVUEGPV7K2YUB5PDVOTJHZWL/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6S9H 
 
Link:https://gitee.com/openeuler/kernel/pulls/10104

 

Reviewed-by: Zucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

parents ed16c732 cbb45758

fs/ecryptfs/keystore.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -300,9 +300,11 @@ 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) {