5.5

CVE-2022-48724: iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()

Modified
AliasesUBUNTU-CVE-2022-48724DEBIAN-CVE-2022-48724
Published 20-06-2024Last modified 23-05-2026

Vulnerability summary

CVE-2022-48724 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 7
SUSE-SU-2024:2362-1SUSE-SU-2024:2372-1SUSE-SU-2024:2384-1SUSE-SU-2024:2394-1SUSE-SU-2024:2902-1SUSE-SU-2024:2929-1

Timeline

  1. 20-06-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu89 products
  • linux< 4.15.0-176.185 | < 5.4.0-109.123
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1127.136 | < 5.4.0-1072.77
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 03992c88d71ba79d956f2ed54e370e630b8750f4, < a0c685ba99961b1dd894b2e470e692a539770f6d | ≥ c0c489e5430530a7021f4c889cd5931597e4b200, < a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9 | ≥ 36f7355545725c5e9400520ae33e6ee16cf78c0e, < 5c43d46daa0d2928234dd2792ebebc35d29ee2d1 | ≥ e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb, < 9d9995b0371e4e8c18d4f955479e5d47efe7b2d4 | ≥ e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb, < 336d096b62bdc673e852b6b80d5072d7888ce85d | ≥ e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb, < b62eceb5f8f08815fe3f945fc55bbf997c344ecd | ≥ e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb, < 99e675d473eb8cf2deac1376a0f840222fc1adcf | b4198ecddb87cd955aa9e024dd656af5ceaf6196 | ≥ 4.14.190, < 4.14.265 | ≥ 4.19.135, < 4.19.228 | ≥ 5.4.54, < 5.4.178 | ≥ 5.7.11, < 5.8 | 5.8
  • linux_kernel≥ 4.14.190, < 4.14.265 | ≥ 4.19.135, < 4.19.228 | ≥ 5.4.54, < 5.4.178 | ≥ 5.7.11, < 5.8 | ≥ 5.8, < 5.10.99 | ≥ 5.11, < 5.15.22 | ≥ 5.16, < 5.16.8 | 5.17:rc1 | 5.17:rc2
Debian1 product
  • linux< 5.16.10-1

3 vendors · 92 products

References

11 links
Show all 11 references