CVE-2023-53543
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 447092100c7e71aa20469a270fcee441d807ed58 – < baed19c108ac8287425b93a44985bbe9a0b1af8d
- affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a – < ff71709445ac033e6e250d971683110e4781c068
- affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a – < ea65e8b5e6b1a34deda7564f09c90e9e80db436a
- affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a – < 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f
- affected 5.15.198 – < 5.15.209
- affected 5.16
- unaffected < 5.16
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.47 – ≤ 6.1.*
- unaffected 6.4.12 – ≤ 6.4.*
- unaffected 6.5 – ≤ *
References (4)
- https://git.kernel.org/stable/c/baed19c108ac8287425b93a44985bbe9a0b1af8d (opens in a new tab)
- https://git.kernel.org/stable/c/ff71709445ac033e6e250d971683110e4781c068 (opens in a new tab)
- https://git.kernel.org/stable/c/ea65e8b5e6b1a34deda7564f09c90e9e80db436a (opens in a new tab)
- https://git.kernel.org/stable/c/5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53543)Record last updated .