{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49436", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.570Z", "datePublished": "2025-02-26T02:12:52.044Z", "dateUpdated": "2025-05-04T08:37:37.674Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:37:37.674Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/papr_scm: Fix leaking nvdimm_events_map elements\n\nRight now 'char *' elements allocated for individual 'stat_id' in\n'papr_scm_priv.nvdimm_events_map[]' during papr_scm_pmu_check_events(), get\nleaked in papr_scm_remove() and papr_scm_pmu_register(),\npapr_scm_pmu_check_events() error paths.\n\nAlso individual 'stat_id' arent NULL terminated 'char *' instead they are fixed\n8-byte sized identifiers. However papr_scm_pmu_register() assumes it to be a\nNULL terminated 'char *' and at other places it assumes it to be a\n'papr_scm_perf_stat.stat_id' sized string which is 8-byes in size.\n\nFix this by allocating the memory for papr_scm_priv.nvdimm_events_map to also\ninclude space for 'stat_id' entries. This is possible since number of available\nevents/stat_ids are known upfront. This saves some memory and one extra level of\nindirection from 'nvdimm_events_map' to 'stat_id'. Also rest of the code\ncan continue to call 'kfree(papr_scm_priv.nvdimm_events_map)' without needing to\niterate over the array and free up individual elements."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/powerpc/platforms/pseries/papr_scm.c"], "versions": [{"version": "4c08d4bbc089a95f3f38389c2b79dbc6ab24f10b", "lessThan": "b073096df4dec70d0436321b7093bad27ae91f9e", "status": "affected", "versionType": "git"}, {"version": "4c08d4bbc089a95f3f38389c2b79dbc6ab24f10b", "lessThan": "0e0946e22f3665d27325d389ff45ade6e93f3678", "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/powerpc/platforms/pseries/papr_scm.c"], "versions": [{"version": "5.18", "status": "affected"}, {"version": "0", "lessThan": "5.18", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "5.18", "versionEndExcluding": "5.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b073096df4dec70d0436321b7093bad27ae91f9e"}, {"url": "https://git.kernel.org/stable/c/0e0946e22f3665d27325d389ff45ade6e93f3678"}], "title": "powerpc/papr_scm: Fix leaking nvdimm_events_map elements", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/papr_scm: Fix leaking nvdimm_events_map elements\n\nRight now 'char *' elements allocated for individual 'stat_id' in\n'papr_scm_priv.nvdimm_events_map[]' during papr_scm_pmu_check_events(), get\nleaked in papr_scm_remove() and papr_scm_pmu_register(),\npapr_scm_pmu_check_events() error paths.\n\nAlso individual 'stat_id' arent NULL terminated 'char *' instead they are fixed\n8-byte sized identifiers. However papr_scm_pmu_register() assumes it to be a\nNULL terminated 'char *' and at other places it assumes it to be a\n'papr_scm_perf_stat.stat_id' sized string which is 8-byes in size.\n\nFix this by allocating the memory for papr_scm_priv.nvdimm_events_map to also\ninclude space for 'stat_id' entries. This is possible since number of available\nevents/stat_ids are known upfront. This saves some memory and one extra level of\nindirection from 'nvdimm_events_map' to 'stat_id'. Also rest of the code\ncan continue to call 'kfree(papr_scm_priv.nvdimm_events_map)' without needing to\niterate over the array and free up individual elements."}], "id": "CVE-2022-49436", "lastModified": "2025-02-26T07:01:20.057", "metrics": {}, "published": "2025-02-26T07:01:20.057", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e0946e22f3665d27325d389ff45ade6e93f3678"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b073096df4dec70d0436321b7093bad27ae91f9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: powerpc/papr_scm: Fix leaking nvdimm_events_map elements", "id": "2348241", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348241"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\npowerpc/papr_scm: Fix leaking nvdimm_events_map elements\nRight now 'char *' elements allocated for individual 'stat_id' in\n'papr_scm_priv.nvdimm_events_map[]' during papr_scm_pmu_check_events(), get\nleaked in papr_scm_remove() and papr_scm_pmu_register(),\npapr_scm_pmu_check_events() error paths.\nAlso individual 'stat_id' arent NULL terminated 'char *' instead they are fixed\n8-byte sized identifiers. However papr_scm_pmu_register() assumes it to be a\nNULL terminated 'char *' and at other places it assumes it to be a\n'papr_scm_perf_stat.stat_id' sized string which is 8-byes in size.\nFix this by allocating the memory for papr_scm_priv.nvdimm_events_map to also\ninclude space for 'stat_id' entries. This is possible since number of available\nevents/stat_ids are known upfront. This saves some memory and one extra level of\nindirection from 'nvdimm_events_map' to 'stat_id'. Also rest of the code\ncan continue to call 'kfree(papr_scm_priv.nvdimm_events_map)' without needing to\niterate over the array and free up individual elements."], "name": "CVE-2022-49436", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49436\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49436\nhttps://lore.kernel.org/linux-cve-announce/2025022656-CVE-2022-49436-e924@gregkh/T"], "threat_severity": "Low"}