Threats Tagged 'ghsa-4g2w-hpr2-f26j'
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Threats Tagged 'ghsa-4g2w-hpr2-f26j'
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In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds… (CVE-2026-80891)CVE-2026-80891 0 In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a single page boundary, then reject the request as we cannot safely pin the guest AIBV. Similarly reject the request if the AISB address is not 8-byte aligned as the architecture requires doubleword alignment for the summary bit address. Since the AISBO can address up to 64 bits, the size of the AISB can only be 8 bytes for the function. This also ensures the AISB doesn't exceed a single page boundary. Join the discussion | GCVE Database | 09/04/2026, 18:31:33 UTC Added: 09/05/2026, 14:25:18 UTC |
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