{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64051", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.029Z", "datePublished": "2026-07-19T15:39:34.608Z", "dateUpdated": "2026-07-20T13:42:50.752Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-20T13:42:50.752Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Add overflow check to remap_pfn_range during mmap\n\nThe call to remap_pfn_range in qaic_gem_object_mmap is susceptible to\n(re)mapping beyond the VMA if the BO is too large. This can cause use\nafter free issues when munmap() unmaps only the VMA region and not the\nadditional mappings. To prevent this, check the remaining size of the\nVMA before remapping and truncate the remapped length if sg->length is\ntoo large.\n\n[jhugo: fix braces from checkpatch --strict]"}], "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"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/qaic/qaic_data.c"], "versions": [{"version": "ff13be8303336ead5621712f2c55012d738878b5", "lessThan": "9baafc2fea096279e75480f93fd5942e8336b510", "status": "affected", "versionType": "git"}, {"version": "ff13be8303336ead5621712f2c55012d738878b5", "lessThan": "8dd6edbe26770df147136c3f2ac976c873b82650", "status": "affected", "versionType": "git"}, {"version": "ff13be8303336ead5621712f2c55012d738878b5", "lessThan": "97a8e89cdef36207a8776edc03d6931763a06ad0", "status": "affected", "versionType": "git"}, {"version": "ff13be8303336ead5621712f2c55012d738878b5", "lessThan": "8c795012d0e06b7740e40319b86ff8d2a435098d", "status": "affected", "versionType": "git"}, {"version": "ff13be8303336ead5621712f2c55012d738878b5", "lessThan": "aa16b2bc0f02709919e2435f531406531e5bcc69", "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/qaic/qaic_data.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.142", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.92", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.34", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.4", "versionEndExcluding": "6.6.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.92"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9baafc2fea096279e75480f93fd5942e8336b510"}, {"url": "https://git.kernel.org/stable/c/8dd6edbe26770df147136c3f2ac976c873b82650"}, {"url": "https://git.kernel.org/stable/c/97a8e89cdef36207a8776edc03d6931763a06ad0"}, {"url": "https://git.kernel.org/stable/c/8c795012d0e06b7740e40319b86ff8d2a435098d"}, {"url": "https://git.kernel.org/stable/c/aa16b2bc0f02709919e2435f531406531e5bcc69"}], "title": "accel/qaic: Add overflow check to remap_pfn_range during mmap", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: accel/qaic: Add overflow check to remap_pfn_range during mmap", "id": "2502613", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502613"}, "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": ["A flaw was found in the Linux kernel's `accel/qaic` driver. This vulnerability allows for memory to be mapped beyond its intended boundaries during certain memory allocation operations. A local attacker could exploit this flaw, leading to a use-after-free condition. This could potentially result in privilege escalation or a denial of service."], "name": "CVE-2026-64051", "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": "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"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "impact": "important", "package_name": "erlang27", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64051\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64051\nhttps://lore.kernel.org/linux-cve-announce/2026071908-CVE-2026-64051-c665@gregkh/T"], "threat_severity": "Important"}

{}