Thermal/int340x_ Thermal：当值为 ZERO_SIZE_PTR 时处理 data_vault (CVE-2022-48703)

CVE编号

CVE-2022-48703

利用情况

暂无

补丁情况

N/A

披露时间

2024-05-04
漏洞描述
In the Linux kernel, the following vulnerability has been resolved:

thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR

In some case, the GDDV returns a package with a buffer which has
zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10).

Then the data_vault_read() got NULL point dereference problem when
accessing the 0x10 value in data_vault.

[ 71.024560] BUG: kernel NULL pointer dereference, address:
0000000000000010

This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or
NULL value in data_vault.
解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接
https://git.kernel.org/stable/c/7931e28098a4c1a2a6802510b0cbe57546d2049d
https://git.kernel.org/stable/c/dae42083b045a4ddf71c57cf350cb2412b5915c2
受影响软件情况
# 类型 厂商 产品 版本 影响面
1
运行在以下环境
系统 debian_12 linux * Up to
(excluding)
5.19.11-1
CVSS3评分
N/A
  • 攻击路径
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  • 攻击复杂度
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  • 权限要求
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  • 用户交互
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  • 可用性
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  • 保密性
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  • 完整性
    N/A
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CWE-ID 漏洞类型
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