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CVE-2022-48904iommu/amd: Fix I/O page table memory leak

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix I/O page table memory leak The current logic updates the I/O page table mode for the domain before calling the logic to free memory used for the page table. This results in IOMMU page table memory leak, and can be observed when launching VM w/ pass-through devices. Fix by freeing the memory used for page table before updating the mode.

Timeline

  1. ID reserved

    By Linux

  2. · 1 day later

    Published

  3. · 21 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-48904, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected e42ba0633064ef23eb1c8c21edf96bac1541bd4b – < 378e2fe1eb58d5c2ed55c8fe5e11f9db5033cdd6
    • affected e42ba0633064ef23eb1c8c21edf96bac1541bd4b – < c78627f757e37c2cf386b59c700c4e1574988597
    • affected e42ba0633064ef23eb1c8c21edf96bac1541bd4b – < 6b0b2d9a6a308bcd9300c2d83000a82812c56cea

  • Linux · Linux

    • affected 5.12
    • unaffected < 5.12
    • unaffected 5.15.27 – ≤ 5.15.*
    • unaffected 5.16.13 – ≤ 5.16.*
    • unaffected 5.17 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .