CVE-2023-53543
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2025-10-04
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
Affected Software (13)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 447092100c7e71aa20469a270fcee441d807ed58 < baed19c108ac8287425b93a44985bbe9a0b1af8d |
| Linux | Linux | ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < ff71709445ac033e6e250d971683110e4781c068 |
| Linux | Linux | ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < ea65e8b5e6b1a34deda7564f09c90e9e80db436a |
| Linux | Linux | ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a < 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f |
| Linux | Linux | 5.15.198 < 5.15.209 |
| Linux | Linux | 5.16 |
| linux | linux_kernel | 5.15.198 – 5.15.209 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |
| linux | linux_kernel | 6.5 |