CVE-2026-72179

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72179", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.910Z", "datePublished": "2026-08-15T05:53:42.980Z", "dateUpdated": "2026-08-17T05:09:41.910Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:09:41.910Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: cacheinfo: Fix node reference leak in populate_cache_leaves\n\nCurrently, the while loop drops the reference to prev in each iteration.\nIf the loop terminates early due to a break, the final of_node_put(np)\ncorrectly drops the reference to the current node.\n\nHowever, if the loop terminates naturally because np == NULL, calling\nof_node_put(np) is a no-op. This leaves the last valid node stored in\nprev without its reference dropped, resulting in a node reference leak.\n\nFix this by changing the final `of_node_put(np)` to `of_node_put(prev)`."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/riscv/kernel/cacheinfo.c"], "versions": [{"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "2560c97f63bb99b26d9f19b23a4f66ea24c9dc14", "status": "affected", "versionType": "git"}, {"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "51afb7da697b698996351740b4f39fb05ce2afd4", "status": "affected", "versionType": "git"}, {"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "880ac50b0bfae06d7ab5f1843253adfb86aa173a", "status": "affected", "versionType": "git"}, {"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "f322955d9a1c344ed943752f05aacea7bc22e025", "status": "affected", "versionType": "git"}, {"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "36e4843fe39ea2f17f4de6d59fba26271916c184", "status": "affected", "versionType": "git"}, {"version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "lessThan": "bf4a195f063b0a0805c1417f6aad1dd32ea48f0f", "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/riscv/kernel/cacheinfo.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "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": "5.0", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2560c97f63bb99b26d9f19b23a4f66ea24c9dc14"}, {"url": "https://git.kernel.org/stable/c/51afb7da697b698996351740b4f39fb05ce2afd4"}, {"url": "https://git.kernel.org/stable/c/880ac50b0bfae06d7ab5f1843253adfb86aa173a"}, {"url": "https://git.kernel.org/stable/c/f322955d9a1c344ed943752f05aacea7bc22e025"}, {"url": "https://git.kernel.org/stable/c/36e4843fe39ea2f17f4de6d59fba26271916c184"}, {"url": "https://git.kernel.org/stable/c/bf4a195f063b0a0805c1417f6aad1dd32ea48f0f"}], "title": "riscv: cacheinfo: Fix node reference leak in populate_cache_leaves", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/riscv/kernel/cacheinfo.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2560c97f63bb99b26d9f19b23a4f66ea24c9dc14", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}, {"lessThan": "51afb7da697b698996351740b4f39fb05ce2afd4", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}, {"lessThan": "880ac50b0bfae06d7ab5f1843253adfb86aa173a", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}, {"lessThan": "f322955d9a1c344ed943752f05aacea7bc22e025", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}, {"lessThan": "36e4843fe39ea2f17f4de6d59fba26271916c184", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}, {"lessThan": "bf4a195f063b0a0805c1417f6aad1dd32ea48f0f", "status": "affected", "version": "94f9bf118f1e294b3f2092f8bde02860f5e3ea3f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/riscv/kernel/cacheinfo.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.0"}, {"lessThan": "5.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "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\nriscv: cacheinfo: Fix node reference leak in populate_cache_leaves\n\nCurrently, the while loop drops the reference to prev in each iteration.\nIf the loop terminates early due to a break, the final of_node_put(np)\ncorrectly drops the reference to the current node.\n\nHowever, if the loop terminates naturally because np == NULL, calling\nof_node_put(np) is a no-op. This leaves the last valid node stored in\nprev without its reference dropped, resulting in a node reference leak.\n\nFix this by changing the final `of_node_put(np)` to `of_node_put(prev)`."}], "id": "CVE-2026-72179", "lastModified": "2026-08-17T06:18:18.393", "metrics": {}, "published": "2026-08-15T06:21:36.180", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2560c97f63bb99b26d9f19b23a4f66ea24c9dc14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/36e4843fe39ea2f17f4de6d59fba26271916c184"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/51afb7da697b698996351740b4f39fb05ce2afd4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/880ac50b0bfae06d7ab5f1843253adfb86aa173a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf4a195f063b0a0805c1417f6aad1dd32ea48f0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f322955d9a1c344ed943752f05aacea7bc22e025"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: riscv: cacheinfo: Fix node reference leak in populate_cache_leaves", "id": "2516342", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516342"}, "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 handling of cache information. This vulnerability occurs when the system fails to properly release memory references during certain operations. This oversight results in a memory leak, which can lead to resource exhaustion and potentially impact system stability."], "name": "CVE-2026-72179", "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-2026-72179\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72179\nhttps://lore.kernel.org/linux-cve-announce/2026081539-CVE-2026-72179-825f@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,2560c97f63bb99b26d9f19b23a4f66ea24c9dc14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,51afb7da697b698996351740b4f39fb05ce2afd4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,880ac50b0bfae06d7ab5f1843253adfb86aa173a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,f322955d9a1c344ed943752f05aacea7bc22e025)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,36e4843fe39ea2f17f4de6d59fba26271916c184)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,bf4a195f063b0a0805c1417f6aad1dd32ea48f0f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[94f9bf118f1e294b3f2092f8bde02860f5e3ea3f,2560c97f63bb99b26d9f19b23a4f66ea24c9dc14)"}}], "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": "generic", "value": "[5.0,5.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"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": "2026-08-15T15:45:06.624569+00:00", "updated": "2026-08-18T14:15:07.938422+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}