CVE-2022-2308 Information disclosure in Linux kernel

What is CVE-2022-2308?

CVE-2022-2308 is a medium-severity vulnerability in Linux kernel, published on 1 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in vDPA with VDUSE backend. There are currently no checks in VDUSE kernel driver to ensure the size of the device config space is in line with the features advertised by the VDUSE userspace application. In case of a mismatch, Virtio drivers config read helpers do not initialize the memory indirectly passed to vduse_vdpa_get_config() returning uninitialized memory from the stack. This could cause undefined behavior or data leaks in Virtio drivers.

Weakness: CWE-908, CWE-457

Which versions are affected by CVE-2022-2308?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-2308?

Apply the vendor's patch.

Is CVE-2022-2308 being exploited?

There is no known exploitation of CVE-2022-2308 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-2308, GHSA-6q37-hh76-6rv4, UBUNTU-CVE-2022-2308, openSUSE-SU-2024:12320-1.