{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80945", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.803Z", "datePublished": "2026-09-11T19:42:16.824Z", "dateUpdated": "2026-09-11T19:42:16.824Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:42:16.824Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: iaa - unmap dst before software fallback on decompress\n\nOn a hardware analytics error, decompress retries through the software\nfallback, which writes req->dst with the CPU while it is still mapped\nDMA_FROM_DEVICE. With SWIOTLB active the later dma_unmap_sg() copies the\nstale bounce buffer over req->dst, corrupting the result.\n\nUnmap before the fallback runs. The async path unmaps inline; the sync\npath signals the retry with -EAGAIN so iaa_comp_adecompress() runs the\nfallback after unmapping."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/intel/iaa/iaa_crypto_main.c"], "versions": [{"version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "lessThan": "fc933a4a419ba8a75da28666a018602c44846953", "status": "affected", "versionType": "git"}, {"version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "lessThan": "fcd86180ef78b0e41763faef7c6d2de7dfb50c1a", "status": "affected", "versionType": "git"}, {"version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "lessThan": "94a25930477113730372e0fa2985da4c5ac95c9a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/intel/iaa/iaa_crypto_main.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953"}, {"url": "https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a"}, {"url": "https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a"}], "title": "crypto: iaa - unmap dst before software fallback on decompress", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/crypto/intel/iaa/iaa_crypto_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fc933a4a419ba8a75da28666a018602c44846953", "status": "affected", "version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "versionType": "git"}, {"lessThan": "fcd86180ef78b0e41763faef7c6d2de7dfb50c1a", "status": "affected", "version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "versionType": "git"}, {"lessThan": "94a25930477113730372e0fa2985da4c5ac95c9a", "status": "affected", "version": "2ec6761df889fdf896fde761abd447596dd8f8c2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/crypto/intel/iaa/iaa_crypto_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.8"}, {"lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: iaa - unmap dst before software fallback on decompress\n\nOn a hardware analytics error, decompress retries through the software\nfallback, which writes req->dst with the CPU while it is still mapped\nDMA_FROM_DEVICE. With SWIOTLB active the later dma_unmap_sg() copies the\nstale bounce buffer over req->dst, corrupting the result.\n\nUnmap before the fallback runs. The async path unmaps inline; the sync\npath signals the retry with -EAGAIN so iaa_comp_adecompress() runs the\nfallback after unmapping."}], "id": "CVE-2026-80945", "lastModified": "2026-09-11T20:19:00.057", "metrics": {}, "published": "2026-09-11T20:19:00.057", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Data corruption in Intel Analytics Accelerator (IAA) driver during decompression", "id": "2532217", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532217"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in the Linux kernel's cryptography module, specifically within the Intel Analytics Accelerator (IAA) driver. When a hardware error occurs during data decompression, the system attempts to use a software-based fallback. However, due to improper handling of memory buffers during this fallback, particularly when the Software I/O Translation Lookaside Buffer (SWIOTLB) is active, the decompression process can corrupt the resulting data. This could lead to data integrity issues for a local user or process."], "name": "CVE-2026-80945", "public_date": "2026-09-11T19:42:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80945\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80945\nhttps://git.kernel.org/stable/c/94a25930477113730372e0fa2985da4c5ac95c9a\nhttps://git.kernel.org/stable/c/fc933a4a419ba8a75da28666a018602c44846953\nhttps://git.kernel.org/stable/c/fcd86180ef78b0e41763faef7c6d2de7dfb50c1a"], "threat_severity": "Moderate"}

{}