CVE-2026-68325
iommu/amd: Bound the early ACPI HID map
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Bound the early ACPI HID map The ivrs_acpihid command-line parser appends entries to a fixed four-element early_acpihid_map array. Unlike the sibling IOAPIC and HPET parsers, it does not reject a fifth entry before incrementing the map size. Check the capacity at the common found label before parsing the HID and UID or writing the entry.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < 9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bb (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < e5e0098f8cd82f8b3c8687a8f686309565d51745 (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < afe7ea0520c49586703f210865ace2d70b017e48 (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < 1e31d2394e0db69541b1591d46c5ad6431c81db3 (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < abe5d7962f09adada9c4fb25b816dddd3f97c55d (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < e5ebe8544df1a1c3611739a8622156094fe470df (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < 030a8e84f8f1b6e96f469c84a13a225c3699910b (affected, git) ≥ ca3bf5d47cec8b7614bcb2e9132c40081d6d81db; < fb80117fddb5b477218dc99bb53911b72c3847f8 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
4.7 (affected) ≥ 0; < 4.7 (unaffected, semver) ≥ 5.10.265; ≤ 5.10.* (unaffected, semver) ≥ 5.15.216; ≤ 5.15.* (unaffected, semver) ≥ 6.1.183; ≤ 6.1.* (unaffected, semver) ≥ 6.6.148; ≤ 6.6.* (unaffected, semver) ≥ 6.12.101; ≤ 6.12.* (unaffected, semver) ≥ 6.18.42; ≤ 6.18.* (unaffected, semver) ≥ 7.1.6; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/9ae6b1b972ce01d3316c8a5f7f58c8b3668cc6bbCNA: Linux
- https://git.kernel.org/stable/c/e5e0098f8cd82f8b3c8687a8f686309565d51745CNA: Linux
- https://git.kernel.org/stable/c/afe7ea0520c49586703f210865ace2d70b017e48CNA: Linux
- https://git.kernel.org/stable/c/1e31d2394e0db69541b1591d46c5ad6431c81db3CNA: Linux
- https://git.kernel.org/stable/c/abe5d7962f09adada9c4fb25b816dddd3f97c55dCNA: Linux
- https://git.kernel.org/stable/c/e5ebe8544df1a1c3611739a8622156094fe470dfCNA: Linux
- https://git.kernel.org/stable/c/030a8e84f8f1b6e96f469c84a13a225c3699910bCNA: Linux
- https://git.kernel.org/stable/c/fb80117fddb5b477218dc99bb53911b72c3847f8CNA: Linux
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