{"id":"CVE-2026-63839","state":"PUBLISHED","title":"platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()\n\nlwmi_dev_evaluate_int() leaks output.pointer when retval == NULL (found\nby sashiko.dev [1]).\n\nFix it by moving `ret_obj = output.pointer' outside of the `if (retval)'\nblock so that it is always freed by the __free cleanup callback.\n\nNo functional change intended.","publishedAt":"2026-07-19T14:04:35.146Z","updatedAt":"2026-09-07T15:45:02.719Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"ce493f9261cd3f4bffe2f72481d8c3ee01c559a3","versionType":"git"},{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"40a984dd0602e238ad893b167751620e751d1199","versionType":"git"},{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"0c3887a134f191723b53e2a47e501b534c8723ee","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/lenovo/wmi-helpers.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/lenovo/wmi-helpers.c"]}],"references":["https://git.kernel.org/stable/c/ce493f9261cd3f4bffe2f72481d8c3ee01c559a3","https://git.kernel.org/stable/c/40a984dd0602e238ad893b167751620e751d1199","https://git.kernel.org/stable/c/0c3887a134f191723b53e2a47e501b534c8723ee"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/63xxx/CVE-2026-63839.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63839","state":"PUBLISHED","datePublished":"2026-07-19T14:04:35.146Z","dateUpdated":"2026-09-07T15:45:02.719Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T07:54:57.015Z"},"containers":{"cna":{"title":"platform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: lenovo-wmi-helpers: Fix memory leak in lwmi_dev_evaluate_int()\n\nlwmi_dev_evaluate_int() leaks output.pointer when retval == NULL (found\nby sashiko.dev [1]).\n\nFix it by moving `ret_obj = output.pointer' outside of the `if (retval)'\nblock so that it is always freed by the __free cleanup callback.\n\nNo functional change intended."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"ce493f9261cd3f4bffe2f72481d8c3ee01c559a3","versionType":"git"},{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"40a984dd0602e238ad893b167751620e751d1199","versionType":"git"},{"version":"e521d16e76cd9ea99c585e064f4e7daf657b1451","status":"affected","lessThan":"0c3887a134f191723b53e2a47e501b534c8723ee","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/lenovo/wmi-helpers.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/lenovo/wmi-helpers.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ce493f9261cd3f4bffe2f72481d8c3ee01c559a3"},{"url":"https://git.kernel.org/stable/c/40a984dd0602e238ad893b167751620e751d1199"},{"url":"https://git.kernel.org/stable/c/0c3887a134f191723b53e2a47e501b534c8723ee"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-09-07T15:45:02.719Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}