CVE-2026-98003iommu/amd: Do not reallocate GA log buffers on resume
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Do not reallocate GA log buffers on resume Commit c5e1a1eb9279 ("iommu/amd: Simplify and Consolidate Virtual APIC (AVIC) Enablement") moved the GA log allocation from iommu_init_pci() to enable_iommus_vapic(), which is called on every resume. iommu_init_ga_log() assigns iommu->ga_log and iommu->ga_log_tail unconditionally. Each resume therefore replaces the boot-time pointers and leaks both old allocations. The function also uses GFP_KERNEL from a syscore resume callback, where interrupts are disabled and the non-boot CPUs are offline. Return early if both buffers are already allocated. Clear the pointers in free_ga_log() so a partial allocation failure cannot leave ga_log dangling.
Timeline
ID reserved
By Linux
Published
- 26 days later
· 26 days 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b – < 8b95269d7a43b737c2c0e2fa77bf00cc8a3a4434
- affected c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b – < ff85cdc2889e1c885eed218ee5bc0b59e0235b3f
- affected c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b – < 94458b80d3b203c1c9e2c98aa7319b7713e006c0
- affected c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b – < b6be275d19cee01f8f1f08a2ff18337103d05d40
- affected c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b – < 00a7dd64888d6dd72110b40e2824a088cf7b7386
- affected 6.0
- unaffected < 6.0
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/8b95269d7a43b737c2c0e2fa77bf00cc8a3a4434 (opens in a new tab)
- https://git.kernel.org/stable/c/ff85cdc2889e1c885eed218ee5bc0b59e0235b3f (opens in a new tab)
- https://git.kernel.org/stable/c/94458b80d3b203c1c9e2c98aa7319b7713e006c0 (opens in a new tab)
- https://git.kernel.org/stable/c/b6be275d19cee01f8f1f08a2ff18337103d05d40 (opens in a new tab)
- https://git.kernel.org/stable/c/00a7dd64888d6dd72110b40e2824a088cf7b7386 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86656 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98003)Record last updated .