CVE-2023-53543
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check Th...
Published: 2025-10-04 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-787
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa max vqp attr to avoid such bugs.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2023-53543
- [Patch]https://git.kernel.org/stable/c/5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f
- [Other]https://git.kernel.org/stable/c/baed19c108ac8287425b93a44985bbe9a0b1af8d
- [Patch]https://git.kernel.org/stable/c/ea65e8b5e6b1a34deda7564f09c90e9e80db436a
- [Patch]https://git.kernel.org/stable/c/ff71709445ac033e6e250d971683110e4781c068
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