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THREAT OPS › Threat News › [NVD] CVE-2026-80945 (CRITICAL 9.1) — In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - unmap dst before software fallback on decompress On a hardware analytics error, decompress retries through the software fallback, which writes req->dst with the CPU while it is still mapped DMA_FR

[NVD] CVE-2026-80945 (CRITICAL 9.1) — In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - unmap dst before software fallback on decompress On a hardware analytics error, decompress retries through the software fallback, which writes req->dst with the CPU while it is still mapped DMA_FR

mednvdPublished 2026-09-11

CVE-2026-80945 CVSS: 9.1 CRITICAL Published: 2026-09-11T20:19:00.057

In the Linux kernel, the following vulnerability has been resolved:

crypto: iaa - unmap dst before software fallback on decompress

On a hardware analytics error, decompress retries through the software fallback, which writes req->dst with the CPU while it is still mapped DMA_FROM_DEVICE. With SWIOTLB active the later dma_unmap

Indicators of compromise

CVE-2026-80945cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80945