• CVE-2025-21993

发布时间: 2025年4月25日

修改时间: 2025年5月9日

概要

In the Linux kernel, the following vulnerability has been resolved: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() When performing an iSCSI boot using IPv6, iscsistart still reads the /sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix length is 64, this causes the shift exponent to become negative, triggering a UBSAN warning. As the concept of a subnet mask does not apply to IPv6, the value is set to ~0 to suppress the warning message.

CVSS v3 指标

NVD openEuler
Confidentiality High High
Attack Vector Local Local
CVSS评分 7.1 7.1
Attack Complexity Low Low
Privileges Required Low Low
Scope Unchanged Unchanged
Integrity None None
User Interaction None None
Availability High High

安全公告

公告名 概要 发布时间
KylinSec-SA-2025-2722 kernel security update 2025年6月11日

影响产品

产品 状态
KY3.4-5A kernel Fixed
V6 kernel Fixed
KY3.5.3 kernel Fixed
KY3.5.2 kernel Fixed