{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31529", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.111Z", "datePublished": "2026-04-22T13:54:41.853Z", "dateUpdated": "2026-04-22T13:54:41.853Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-22T13:54:41.853Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix leakage in __construct_region()\n\nFailing the first sysfs_update_group() needs to explicitly\nkfree the resource as it is too early for cxl_region_iomem_release()\nto do so."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cxl/core/region.c"], "versions": [{"version": "d6602e25819dea2c239972e98e09ba5db4aebd22", "lessThan": "f1b4741adf08b0063291ec1b0dfa9c3d55644933", "status": "affected", "versionType": "git"}, {"version": "d6602e25819dea2c239972e98e09ba5db4aebd22", "lessThan": "77b310bb7b5ff8c017524df83292e0242ba89791", "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/cxl/core/region.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.19", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f1b4741adf08b0063291ec1b0dfa9c3d55644933"}, {"url": "https://git.kernel.org/stable/c/77b310bb7b5ff8c017524df83292e0242ba89791"}], "title": "cxl/region: Fix leakage in __construct_region()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix leakage in __construct_region()\n\nFailing the first sysfs_update_group() needs to explicitly\nkfree the resource as it is too early for cxl_region_iomem_release()\nto do so."}], "id": "CVE-2026-31529", "lastModified": "2026-04-23T16:17:41.280", "metrics": {}, "published": "2026-04-22T14:16:53.183", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/77b310bb7b5ff8c017524df83292e0242ba89791"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1b4741adf08b0063291ec1b0dfa9c3d55644933"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: cxl/region: Fix leakage in __construct_region()", "id": "2460716", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460716"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `cxl/region` component. This vulnerability involves a resource leakage within the `__construct_region()` function. When `sysfs_update_group()` fails, the resource is not explicitly freed, leading to a memory leak. This could potentially allow a local attacker to cause a Denial of Service (DoS) by exhausting system resources."], "name": "CVE-2026-31529", "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": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31529\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31529\nhttps://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31529-f32e@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6602e25819dea2c239972e98e09ba5db4aebd22,f1b4741adf08b0063291ec1b0dfa9c3d55644933)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d6602e25819dea2c239972e98e09ba5db4aebd22,77b310bb7b5ff8c017524df83292e0242ba89791)"}}], "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": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.11,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-04-22T19:00:07.808639+00:00", "updated": "2026-04-22T19:00:07.808735+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}