{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80522", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.763Z", "datePublished": "2026-08-26T14:37:03.180Z", "dateUpdated": "2026-08-27T05:01:18.823Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-27T05:01:18.823Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()\n\nPerform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way\nit is done in tegra_ccm_crypt_init(). The current formulae may lead to a\ncrash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize\nremains zero. Then a decrypt operation with incorrect rctx->cryptlen will\nlead to a write beyound rctx->dst_sg buffer.\n\nAs a follow-up cleanup delete struct tegra_aead_ctx->authsize field since\nit appears to be completely unused. Also simplify tegra_ccm_setauthsize()\nand tegra_gcm_setauthsize() functions respectively."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The flaw is in the Tegra Security Engine gcm(aes) driver reached via the kernel crypto API (AF_ALG socket syscalls); major network consumers call setauthsize and are not affected, and the driver only exists on Tegra234 platforms with TEGRA_HOST1X.\nAC:L - On affected Tegra systems with tegra-se loaded, an attacker reliably triggers the bug by issuing a GCM decrypt through AF_ALG without calling ALG_SET_AEAD_AUTHSIZE, relying on the default 16-byte tag while ctx->authsize remains zero.\nPR:L - Triggering tegra GCM decrypt via AF_ALG requires only an unprivileged local user able to open AF_ALG sockets and bind to gcm(aes); no CAP_SYS_ADMIN, real root, or container-escaping capabilities are needed on standard configurations.\nUI:N - Exploitation requires no victim interaction such as mounting filesystems or opening files; the attacker directly submits crafted decrypt requests through the local crypto interface.\nS:U - Impact is kernel heap/memory corruption and potential privilege escalation within the same kernel security domain; it does not cross VM, container, or IOMMU boundaries.\nC:H - The out-of-bounds write corrupts memory adjacent to the destination scatterlist buffer; such heap corruption can expose kernel pointers or other sensitive data and is rated High per memory-corruption guidance.\nI:H - Decrypt uses an inflated cryptlen so scatterwalk_map_and_copy writes up to 16 bytes beyond the caller-allocated dst_sg buffer with no bounds checking, constituting an exploitable out-of-bounds write primitive.\nA:H - Writing past the destination scatterlist can corrupt adjacent kernel structures and cause kernel oops or panic; the fix commit explicitly describes this as a crash-causing out-of-bounds write condition."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/tegra/tegra-se-aes.c"], "versions": [{"version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "lessThan": "cd6991001bf0681ed0bcf21f9cc3d261d749b2bb", "status": "affected", "versionType": "git"}, {"version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "lessThan": "99a18e1d979e0fad3aaf9c65ae6696897c1d9869", "status": "affected", "versionType": "git"}, {"version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "lessThan": "c6237834d9994de209cb90c7a2c461247bce8e90", "status": "affected", "versionType": "git"}, {"version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "lessThan": "360f2974fcea49c61f6d6f81554741a9eeee7168", "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/tegra/tegra-se-aes.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.105", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.10", "versionEndExcluding": "6.12.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb"}, {"url": "https://git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869"}, {"url": "https://git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90"}, {"url": "https://git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168"}], "title": "crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/crypto/tegra/tegra-se-aes.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "cd6991001bf0681ed0bcf21f9cc3d261d749b2bb", "status": "affected", "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "versionType": "git"}, {"lessThan": "99a18e1d979e0fad3aaf9c65ae6696897c1d9869", "status": "affected", "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "versionType": "git"}, {"lessThan": "c6237834d9994de209cb90c7a2c461247bce8e90", "status": "affected", "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "versionType": "git"}, {"lessThan": "360f2974fcea49c61f6d6f81554741a9eeee7168", "status": "affected", "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/crypto/tegra/tegra-se-aes.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.105", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()\n\nPerform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way\nit is done in tegra_ccm_crypt_init(). The current formulae may lead to a\ncrash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize\nremains zero. Then a decrypt operation with incorrect rctx->cryptlen will\nlead to a write beyound rctx->dst_sg buffer.\n\nAs a follow-up cleanup delete struct tegra_aead_ctx->authsize field since\nit appears to be completely unused. Also simplify tegra_ccm_setauthsize()\nand tegra_gcm_setauthsize() functions respectively."}], "id": "CVE-2026-80522", "lastModified": "2026-08-27T06:17:31.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-26T15:17:05.800", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()", "id": "2524423", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524423"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncrypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()\nPerform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way\nit is done in tegra_ccm_crypt_init(). The current formulae may lead to a\ncrash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize\nremains zero. Then a decrypt operation with incorrect rctx->cryptlen will\nlead to a write beyound rctx->dst_sg buffer.\nAs a follow-up cleanup delete struct tegra_aead_ctx->authsize field since\nit appears to be completely unused. Also simplify tegra_ccm_setauthsize()\nand tegra_gcm_setauthsize() functions respectively.", "A flaw was found in the Linux kernel's Tegra cryptography module. An incorrect calculation in the 'tegra_gcm_do_one_req()' function, specifically when handling the 'cryptlen' parameter, can occur if a caller does not properly initialize the authentication size. This can lead to a write beyond the intended memory buffer during a decrypt operation, potentially causing a system crash (Denial of Service)."], "name": "CVE-2026-80522", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80522\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80522\nhttps://lore.kernel.org/linux-cve-announce/2026082601-CVE-2026-80522-a340@gregkh/T"], "threat_severity": "Important"}