{"id":"CVE-2026-98003","title":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: Do not reallocate GA log buffers on resume\n\nCommit c5e1a1eb9279 (\"iommu/amd: Simplify and Consolidate Virtual APIC\n(AVIC) Enablement\") moved the GA log alloc…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: Do not reallocate GA log buffers on resume\n\nCommit c5e1a1eb9279 (\"iommu/amd: Simplify and Consolidate Virtual APIC\n(AVIC) Enablement\") moved the GA log alloc…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b < 94458b80d3b203c1c9e2c98aa7319b7713e006c0","Linux >= c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b < b6be275d19cee01f8f1f08a2ff18337103d05d40","Linux >= c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b < 00a7dd64888d6dd72110b40e2824a088cf7b7386","Linux 6.0"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:28.533","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98003","references":[{"url":"https://git.kernel.org/stable/c/00a7dd64888d6dd72110b40e2824a088cf7b7386","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/94458b80d3b203c1c9e2c98aa7319b7713e006c0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b6be275d19cee01f8f1f08a2ff18337103d05d40","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.861Z","slug":"CVE-2026-98003","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: Do not reallocate GA log buffers on resume\n\nCommit c5e1a1eb9279 (\"iommu/amd: Simplify and Consolidate Virtual APIC\n(AVIC) Enablement\") moved the GA log allocation from iommu_init_pci()\nto enable_iommus_vapic(), which is called on every resume.\n\niommu_init_ga_log() assigns iommu->ga_log and iommu->ga_log_tail\nunconditionally. Each resume therefore replaces the boot-time pointers\nand leaks both old allocations. The function also uses GFP_KERNEL from a\nsyscore resume callback, where interrupts are disabled and the non-boot\nCPUs are offline.\n\nReturn early if both buffers are already allocated. Clear the pointers\nin free_ga_log() so a partial allocation failure cannot leave ga_log\ndangling.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}