{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74423", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.894Z", "datePublished": "2026-08-15T05:59:26.568Z", "dateUpdated": "2026-08-17T05:19:08.522Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:19:08.522Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/amdxdna/amdxdna_ubuf.c"], "versions": [{"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "lessThan": "68dc52f308a17c3103a349f722dd5dea32c50a88", "status": "affected", "versionType": "git"}, {"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "lessThan": "5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7", "status": "affected", "versionType": "git"}, {"version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "lessThan": "d946347edc4f0a7b846325323d77e936a4c90d0f", "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/accel/amdxdna/amdxdna_ubuf.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "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": "6.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88"}, {"url": "https://git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7"}, {"url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f"}], "title": "accel/amdxdna: Fix leak when pinning ubuf pages", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/accel/amdxdna/amdxdna_ubuf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "68dc52f308a17c3103a349f722dd5dea32c50a88", "status": "affected", "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "versionType": "git"}, {"lessThan": "5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7", "status": "affected", "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "versionType": "git"}, {"lessThan": "d946347edc4f0a7b846325323d77e936a4c90d0f", "status": "affected", "version": "bd72d4acda1069579b35123e3cc0b21ec1193a21", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/accel/amdxdna/amdxdna_ubuf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\naccel/amdxdna: Fix leak when pinning ubuf pages\n\nWhen pin_user_pages_fast() returns fewer pages than requested, the pages\nthat were successfully pinned are not released, leading to a leak.\n\nFix this by unpinning any partially pinned pages before returning failure."}], "id": "CVE-2026-74423", "lastModified": "2026-08-17T06:19:37.727", "metrics": {}, "published": "2026-08-15T06:22:44.387", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: accel/amdxdna: Fix leak when pinning ubuf pages", "id": "2516754", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516754"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's accel/amdxdna component. This vulnerability occurs when the `pin_user_pages_fast()` function, responsible for pinning user buffer (ubuf) pages, returns fewer pages than requested. In such cases, the pages that were successfully pinned are not properly released, leading to a resource leak. This can potentially lead to system instability or denial of service over time due to resource exhaustion."], "name": "CVE-2026-74423", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74423\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74423\nhttps://lore.kernel.org/linux-cve-announce/2026081513-CVE-2026-74423-8ed6@gregkh/T"], "threat_severity": "Low"}