CVE-2026-80945
- Source
- https://cve.org/CVERecord?id=CVE-2026-80945
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80945.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80945
- Downstream
- Published
- 2026-09-11T19:42:16Z
- Modified
- 2026-09-13T03:46:45Z
- Summary
- crypto: iaa - unmap dst before software fallback on decompress
- Details
-
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_sg() copies the stale bounce buffer over req->dst, corrupting the result.
Unmap before the fallback runs. The async path unmaps inline; the sync path signals the retry with -EAGAIN so iaa_comp_adecompress() runs the fallback after unmapping.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80945.json" }- References
-
- https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a
- https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953
- https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80945.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80945
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git