iommu/amd: Do not reallocate GA log buffers on resume
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.
CVE-2026-98003
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98003
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b",
"lessThan": "8b95269d7a43b737c2c0e2fa77bf00cc8a3a4434",
"versionType": "git"
},
{
"status": "affected",
"version": "c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b",
"lessThan": "ff85cdc2889e1c885eed218ee5bc0b59e0235b3f",
"versionType": "git"
},
{
"status": "affected",
"version": "c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b",
"lessThan": "94458b80d3b203c1c9e2c98aa7319b7713e006c0",
"versionType": "git"
},
{
"status": "affected",
"version": "c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b",
"lessThan": "b6be275d19cee01f8f1f08a2ff18337103d05d40",
"versionType": "git"
},
{
"status": "affected",
"version": "c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b",
"lessThan": "00a7dd64888d6dd72110b40e2824a088cf7b7386",
"versionType": "git"
}
],
"programFiles": [
"drivers/iommu/amd/init.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iommu/amd/init.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98003
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48827 · Revision 1
- Added to Heist Feed
- Publisher date