Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 447092100c7e71aa20469a270fcee441d807ed58 before baed19c108ac8287425b93a44985bbe9a0b1af8d; affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a before ff71709445ac033e6e250d971683110e4781c068; affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a before ea65e8b5e6b1a34deda7564f09c90e9e80db436a; affected ad69dd0bf26b88ec6ab26f8bbe5cd74fbed7672a before 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f; affected 5.15.198 before 5.15.209 |
| Linux / Linux | affected 5.16; unaffected 0 before 5.16; unaffected 5.15.209 through 5.15.*; unaffected 6.1.47 through 6.1.*; unaffected 6.4.12 through 6.4.*; unaffected 6.5 through * |
CWE
No CWE identifiers supplied.