Unverified Commit fa213da1 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10114 v2 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/XXSGQAHUGD3U4P2CE3CYM6F6WBBB3PFY/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6S9H 
 
Link:https://gitee.com/openeuler/kernel/pulls/10114

 

Reviewed-by: default avatarZucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 90bd060f 6d719165

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) {