{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46087", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.096Z", "datePublished": "2026-05-27T12:58:30.611Z", "dateUpdated": "2026-06-14T17:53:23.838Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:53:23.838Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()\n\nDestroy the DAMON context and reset the global pointer when damon_start()\nfails. Otherwise, the context allocated by damon_stat_build_ctx() is\nleaked, and the stale damon_stat_context pointer will be overwritten on\nthe next enable attempt, making the old allocation permanently\nunreachable."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/stat.c"], "versions": [{"version": "369c415e60732b7c8ed33368891581246f580d7a", "lessThan": "8a62c58411cbd748d7aeab0e5b0963e33ff47a7a", "status": "affected", "versionType": "git"}, {"version": "369c415e60732b7c8ed33368891581246f580d7a", "lessThan": "50bc1d7e0f3bb6932c8dc5da0907eead0790176b", "status": "affected", "versionType": "git"}, {"version": "369c415e60732b7c8ed33368891581246f580d7a", "lessThan": "e04ed278d25bf15769800bf6e35c6737f137186f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/damon/stat.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "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": "6.17", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8a62c58411cbd748d7aeab0e5b0963e33ff47a7a"}, {"url": "https://git.kernel.org/stable/c/50bc1d7e0f3bb6932c8dc5da0907eead0790176b"}, {"url": "https://git.kernel.org/stable/c/e04ed278d25bf15769800bf6e35c6737f137186f"}], "title": "mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: mm/damon/stat: fix memory leak on damon_start() failure in damon_stat_start()", "id": "2482141", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482141"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's Data Access MONitor (DAMON) subsystem. When the `damon_start()` function fails during the `damon_stat_start()` operation, the system does not properly release the allocated memory context. This oversight leads to a memory leak, where previously allocated memory becomes permanently unreachable. Over time, this can result in resource exhaustion, potentially impacting system stability and performance."], "name": "CVE-2026-46087", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46087\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46087\nhttps://lore.kernel.org/linux-cve-announce/2026052702-CVE-2026-46087-c7c2@gregkh/T"]}

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