🛡️ CVE-2022-48724 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()

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

iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()

After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node

unconditionally allocated"). For tear down scenario, fn is only freed

after fail to allocate ir_domain, though it also should be freed in case

dmar_enable_qi returns error.

Besides free fn, irq_domain and ir_msi_domain need to be removed as well

if intel_setup_irq_remapping fails to enable queued invalidation.

Improve the rewinding path by add out_free_ir_domain and out_free_fwnode

lables per Baolu's suggestion.

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 none, integrity none, availability high.

Affected software

CVE-2022-48724 is recorded against 2 packages.

  • kernel (from 5.11.0 up to 5.16.8)
  • linux-kernel

Timeline and source

Published on 20 June 2024 and last revised on 15 July 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)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2022-48724 on other distributions

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

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-06-20
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 5.11.0 5.16.8
linux-kernel — —

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