{"api_version":"1","generated_at":"2026-04-22T17:48:17+00:00","cve":"CVE-2026-31529","urls":{"html":"https://cve.report/CVE-2026-31529","api":"https://cve.report/api/cve/CVE-2026-31529.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31529","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31529"},"summary":{"title":"cxl/region: Fix leakage in __construct_region()","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-22 14:16:53","updated_at":"2026-04-22 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d6602e25819dea2c239972e98e09ba5db4aebd22 f1b4741adf08b0063291ec1b0dfa9c3d55644933 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d6602e25819dea2c239972e98e09ba5db4aebd22 77b310bb7b5ff8c017524df83292e0242ba89791 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.11 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/cxl/core/region.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f1b4741adf08b0063291ec1b0dfa9c3d55644933","status":"affected","version":"d6602e25819dea2c239972e98e09ba5db4aebd22","versionType":"git"},{"lessThan":"77b310bb7b5ff8c017524df83292e0242ba89791","status":"affected","version":"d6602e25819dea2c239972e98e09ba5db4aebd22","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/cxl/core/region.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.11","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-04-22T13:54:41.853Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31529","datePublished":"2026-04-22T13:54:41.853Z","dateReserved":"2026-03-09T15:48:24.111Z","dateUpdated":"2026-04-22T13:54:41.853Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-22 14:16:53","lastModifiedDate":"2026-04-22 14:16:53","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31529","Ordinal":"1","Title":"cxl/region: Fix leakage in __construct_region()","CVE":"CVE-2026-31529","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31529","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"cxl/region: Fix leakage in __construct_region()"}]}}}