cbcvebase.
CVE-2023-54031
published 2025-12-24

CVE-2023-54031: In the Linux kernel, the following vulnerability has been resolved: vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy…

PriorityP416medium4.4
EPSS
0.17%
6.1th percentile
In the Linux kernel, the following vulnerability has been resolved: vdpa: Add queue index 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 queue index attr to avoid such bugs.

Affected

6 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.52-1 (bookworm)linux 6.1.52-1 (bookworm)
linuxlinux_kernel>= 0 < 6.1.52-16.1.52-1
linuxlinux_kernel>= 0 < 6.4.13-16.4.13-1
linuxlinux_kernel>= 0 < 6.4.13-16.4.13-1
linuxlinux_kernel>= 5.19.0 < 6.1.476.1.47
linuxlinux_kernel>= 6.2.0 < 6.4.126.4.12

CVSS provenance

nvd4.4MEDIUM
osv4.4MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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