{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80963", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.810Z", "datePublished": "2026-09-11T19:42:29.172Z", "dateUpdated": "2026-09-11T19:42:29.172Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:42:29.172Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-stats: fix a crash if allocation of per-cpu data fails\n\nIf \"dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))\" fails, the code\njumps to the \"out\" label and calls dm_stat_free. dm_stat_free does\n\"for_each_possible_cpu(cpu) { dm_kvfree(s->stat_percpu[cpu][0].histogram,\ns->histogram_alloc_size);\", which crashes with NULL pointer dereference\nif s->stat_percpu[cpu] is NULL.\n\nThis commit fixes the bug by testing s->stat_percpu[cpu] for NULL before\nusing it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-stats.c"], "versions": [{"version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "lessThan": "c3f211b7a277dd404b4e7d23095be964b5b46a27", "status": "affected", "versionType": "git"}, {"version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "lessThan": "74210fa072960a18bb0eead487585452af722e4f", "status": "affected", "versionType": "git"}, {"version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "lessThan": "0c8f7870ed3ebd512f090d7714cc2c556b9e5c75", "status": "affected", "versionType": "git"}, {"version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "lessThan": "cc87e26d9cce22061dc21e51e11afef29dbbc36a", "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/md/dm-stats.c"], "versions": [{"version": "3.12", "status": "affected"}, {"version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "3.12", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27"}, {"url": "https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f"}, {"url": "https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75"}, {"url": "https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a"}], "title": "dm-stats: fix a crash if allocation of per-cpu data fails", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/dm-stats.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c3f211b7a277dd404b4e7d23095be964b5b46a27", "status": "affected", "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "versionType": "git"}, {"lessThan": "74210fa072960a18bb0eead487585452af722e4f", "status": "affected", "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "versionType": "git"}, {"lessThan": "0c8f7870ed3ebd512f090d7714cc2c556b9e5c75", "status": "affected", "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "versionType": "git"}, {"lessThan": "cc87e26d9cce22061dc21e51e11afef29dbbc36a", "status": "affected", "version": "fd2ed4d252701d3bbed4cd3e3d267ad469bb832a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/dm-stats.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.12"}, {"lessThan": "3.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "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\ndm-stats: fix a crash if allocation of per-cpu data fails\n\nIf \"dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))\" fails, the code\njumps to the \"out\" label and calls dm_stat_free. dm_stat_free does\n\"for_each_possible_cpu(cpu) { dm_kvfree(s->stat_percpu[cpu][0].histogram,\ns->histogram_alloc_size);\", which crashes with NULL pointer dereference\nif s->stat_percpu[cpu] is NULL.\n\nThis commit fixes the bug by testing s->stat_percpu[cpu] for NULL before\nusing it."}], "id": "CVE-2026-80963", "lastModified": "2026-09-11T20:19:02.220", "metrics": {}, "published": "2026-09-11T20:19:02.220", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: dm-stats module crash due to null pointer dereference", "id": "2532397", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532397"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's `dm-stats` module. This vulnerability occurs when the allocation of per-CPU data fails, which can lead to a null pointer dereference during the subsequent cleanup operation. This issue can cause the system to crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-80963", "public_date": "2026-09-11T19:42:29Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80963\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80963\nhttps://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75\nhttps://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f\nhttps://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27\nhttps://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a"], "threat_severity": "Moderate"}

{}