{"id":"CVE-2026-98003","published":"2026-09-25T11:17:28.533","lastModified":"2026-09-25T11:17:28.533","description":"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 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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/00a7dd64888d6dd72110b40e2824a088cf7b7386","tags":[]},{"url":"https://git.kernel.org/stable/c/94458b80d3b203c1c9e2c98aa7319b7713e006c0","tags":[]},{"url":"https://git.kernel.org/stable/c/b6be275d19cee01f8f1f08a2ff18337103d05d40","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}