• CVE-2021-47372

发布时间: 2024年6月13日

修改时间: 2024年12月28日

概要

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80

CVSS v3 指标

NVD openEuler
Confidentiality High Low
Attack Vector Local Local
CVSS评分 7.8 3.9
Attack Complexity Low High
Privileges Required Low High
Scope Unchanged Unchanged
Integrity High Low
User Interaction None None
Availability High Low

安全公告

公告名 概要 发布时间
KylinSec-SA-2024-2717 In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80 2024年6月13日
KylinSec-SA-2024-4787 kernel security update 2024年6月21日

影响产品

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