🛡️ CVE-2022-50167 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

bpf: fix potential 32-bit overflow when accessing ARRAY map element

In the Linux kernel, the following vulnerability has been resolved:

bpf: fix potential 32-bit overflow when accessing ARRAY map element

If BPF array map is bigger than 4GB, element pointer calculation can

overflow because both index and elem_size are u32. Fix this everywhere

by forcing 64-bit multiplication. Extract this formula into separate

small helper and use it consistently in various places.

Speculative-preventing formula utilizing index_mask trick is left as is,

but explicit u64 casts are added in both places.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2022-50167 is recorded against 2 packages.

  • kernel (from 5.19.0 up to 5.19.2)
  • linux-kernel (from 5.19 up to 5.19.2)

Timeline and source

Published on 18 June 2025 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2022-50167 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-06-18
Updated 2026-08-12
Modified 2026-08-06

Affected Packages

Software From version Fixed in
kernel 5.19.0 5.19.2
linux-kernel 5.19 5.19.2

Similar Threats

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