CVE-2026-80571

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80571", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.768Z", "datePublished": "2026-08-26T14:37:32.541Z", "dateUpdated": "2026-08-26T14:37:32.541Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-26T14:37:32.541Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak\n\nIn papr_phy_attest_create_handle(), the params->cmd.length is not\nvalidated before use, which can result in a buffer overlow. Check it and\nreturn -EINVAL if it is either 0 or exceeds sizeof(params->cmd).\n\nAlso, params is freed on the success path but not error. Free it on\nerrors after memory allocation. And free it on negative fd."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/platforms/pseries/papr-phy-attest.c"], "versions": [{"version": "86900ab620a42396a749b506d4a187820fc3fabe", "lessThan": "828a8d1a9107aec6353d896882df8383accf7e80", "status": "affected", "versionType": "git"}, {"version": "86900ab620a42396a749b506d4a187820fc3fabe", "lessThan": "ed98ce338f9a65c90cb930b088f1eb36de7181af", "status": "affected", "versionType": "git"}, {"version": "86900ab620a42396a749b506d4a187820fc3fabe", "lessThan": "5b17f3f34391372faf03e79d947e0c50ab6dd258", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/platforms/pseries/papr-phy-attest.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "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": "6.16", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80"}, {"url": "https://git.kernel.org/stable/c/ed98ce338f9a65c90cb930b088f1eb36de7181af"}, {"url": "https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258"}], "title": "powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/powerpc/platforms/pseries/papr-phy-attest.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "828a8d1a9107aec6353d896882df8383accf7e80", "status": "affected", "version": "86900ab620a42396a749b506d4a187820fc3fabe", "versionType": "git"}, {"lessThan": "ed98ce338f9a65c90cb930b088f1eb36de7181af", "status": "affected", "version": "86900ab620a42396a749b506d4a187820fc3fabe", "versionType": "git"}, {"lessThan": "5b17f3f34391372faf03e79d947e0c50ab6dd258", "status": "affected", "version": "86900ab620a42396a749b506d4a187820fc3fabe", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/powerpc/platforms/pseries/papr-phy-attest.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "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\npowerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak\n\nIn papr_phy_attest_create_handle(), the params->cmd.length is not\nvalidated before use, which can result in a buffer overlow. Check it and\nreturn -EINVAL if it is either 0 or exceeds sizeof(params->cmd).\n\nAlso, params is freed on the success path but not error. Free it on\nerrors after memory allocation. And free it on negative fd."}], "id": "CVE-2026-80571", "lastModified": "2026-08-26T15:17:13.020", "metrics": {}, "published": "2026-08-26T15:17:13.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ed98ce338f9a65c90cb930b088f1eb36de7181af"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak", "id": "2524458", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524458"}, "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-805", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npowerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak\nIn papr_phy_attest_create_handle(), the params->cmd.length is not\nvalidated before use, which can result in a buffer overlow. Check it and\nreturn -EINVAL if it is either 0 or exceeds sizeof(params->cmd).\nAlso, params is freed on the success path but not error. Free it on\nerrors after memory allocation. And free it on negative fd.", "A flaw was found in the Linux kernel's `powerpc/pseries: papr-phy-attest` component. This vulnerability arises from insufficient validation of a command length parameter, which can lead to a buffer overflow. Such an overflow could be exploited by a local attacker to potentially execute arbitrary code or cause a system crash (denial of service). Additionally, improper memory deallocation in error handling paths could result in a memory leak, further contributing to system instability."], "name": "CVE-2026-80571", "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-2026-80571\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80571\nhttps://lore.kernel.org/linux-cve-announce/2026082612-CVE-2026-80571-b189@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[86900ab620a42396a749b506d4a187820fc3fabe,828a8d1a9107aec6353d896882df8383accf7e80)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[86900ab620a42396a749b506d4a187820fc3fabe,ed98ce338f9a65c90cb930b088f1eb36de7181af)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[86900ab620a42396a749b506d4a187820fc3fabe,5b17f3f34391372faf03e79d947e0c50ab6dd258)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.46,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.10,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-26T16:30:09.773859+00:00", "updated": "2026-08-28T17:45:04.129884+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}