crypto: iaa - unmap dst before software fallback on decompress
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.
CVE-2026-80945
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80945
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2ec6761df889fdf896fde761abd447596dd8f8c2",
"lessThan": "c0279e5ea2aad99d8b91f1a6579d751cc9eb2408",
"versionType": "git"
},
{
"status": "affected",
"version": "2ec6761df889fdf896fde761abd447596dd8f8c2",
"lessThan": "fc933a4a419ba8a75da28666a018602c44846953",
"versionType": "git"
},
{
"status": "affected",
"version": "2ec6761df889fdf896fde761abd447596dd8f8c2",
"lessThan": "fcd86180ef78b0e41763faef7c6d2de7dfb50c1a",
"versionType": "git"
},
{
"status": "affected",
"version": "2ec6761df889fdf896fde761abd447596dd8f8c2",
"lessThan": "94a25930477113730372e0fa2985da4c5ac95c9a",
"versionType": "git"
}
],
"programFiles": [
"drivers/crypto/intel/iaa/iaa_crypto_main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/crypto/intel/iaa/iaa_crypto_main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80945
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #34905 · Revision 1
- Added to Heist Feed
- Publisher date