CVE-2026-74352

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74352", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.886Z", "datePublished": "2026-08-15T05:58:38.710Z", "dateUpdated": "2026-08-17T05:17:45.878Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:17:45.878Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer 'reserved_mem' continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/of/of_reserved_mem.c"], "versions": [{"version": "b6ae53301eb41f0f59f83c161248b186bca7da70", "lessThan": "6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b", "status": "affected", "versionType": "git"}, {"version": "00c9a452a235c61f099504783badd9a7675ff5a5", "lessThan": "9af58d10d0d8c08b822de5fc99e61f31a87ede8d", "status": "affected", "versionType": "git"}, {"version": "00c9a452a235c61f099504783badd9a7675ff5a5", "lessThan": "cbd3102fe27bc87da244bf4c3ba670ea4698b0a8", "status": "affected", "versionType": "git"}, {"version": "00c9a452a235c61f099504783badd9a7675ff5a5", "lessThan": "e1686ca81dbf3edbde589b7daf312b45cbf76e03", "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/of/of_reserved_mem.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "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": "6.13", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b"}, {"url": "https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d"}, {"url": "https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8"}, {"url": "https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"}], "title": "of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/of/of_reserved_mem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b", "status": "affected", "version": "b6ae53301eb41f0f59f83c161248b186bca7da70", "versionType": "git"}, {"lessThan": "9af58d10d0d8c08b822de5fc99e61f31a87ede8d", "status": "affected", "version": "00c9a452a235c61f099504783badd9a7675ff5a5", "versionType": "git"}, {"lessThan": "cbd3102fe27bc87da244bf4c3ba670ea4698b0a8", "status": "affected", "version": "00c9a452a235c61f099504783badd9a7675ff5a5", "versionType": "git"}, {"lessThan": "e1686ca81dbf3edbde589b7daf312b45cbf76e03", "status": "affected", "version": "00c9a452a235c61f099504783badd9a7675ff5a5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/of/of_reserved_mem.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "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\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer 'reserved_mem' continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails."}], "id": "CVE-2026-74352", "lastModified": "2026-08-17T06:19:29.907", "metrics": {}, "published": "2026-08-15T06:22:36.543", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails", "id": "2516825", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516825"}, "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-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\nThe global pointer 'reserved_mem' continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails.", "A flaw was found in the Linux kernel's reserved memory management. During initialization, if the allocation of the reserved memory array fails, a global pointer may still reference the freed memory. A subsequent operation, such as looking up reserved memory, could then attempt to access this freed memory, leading to a use-after-free vulnerability. This could result in system instability or a denial of service."], "name": "CVE-2026-74352", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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-2026-74352\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74352\nhttps://lore.kernel.org/linux-cve-announce/2026081559-CVE-2026-74352-fec6@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b6ae53301eb41f0f59f83c161248b186bca7da70,6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[00c9a452a235c61f099504783badd9a7675ff5a5,9af58d10d0d8c08b822de5fc99e61f31a87ede8d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[00c9a452a235c61f099504783badd9a7675ff5a5,cbd3102fe27bc87da244bf4c3ba670ea4698b0a8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[00c9a452a235c61f099504783badd9a7675ff5a5,e1686ca81dbf3edbde589b7daf312b45cbf76e03)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "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": "2026-08-15T13:00:05.627864+00:00", "updated": "2026-08-22T03:30:16.792083+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}