{"id":"CVE-2026-89925","state":"PUBLISHED","title":"KVM: s390: Fix memory leak in guest debug handling","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Fix memory leak in guest debug handling\n\nbp_data is freed only for the error case by kfree(bp_data).\nEvery successful KVM_SET_GUEST_DEBUG will leak bp_data.","publishedAt":"2026-09-16T10:32:18.111Z","updatedAt":"2026-10-19T08:55:00.155Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"39e7cebb889839b5762c9ad22e2d715b5883b288","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"58b1b729a9f90c80b508fc3e2174cbc0ee50859e","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"9071f75cbde3bf46119cb28e92cfbef830c4bf97","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"5940418e4232a2ff1d30ba12e0d213dbf48f0a83","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"fc2034c431adcbaabf5f8a01912358f07355349e","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"44bf3792c10f4bb3de507391f1837e020d92eaa2","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"581be9f6085834188cef1ad2f07babf3b421e409","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"121ea1de927c8b9bfdf53c31cad27b86d5de0293","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/guestdbg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/guestdbg.c"]}],"references":["https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288","https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e","https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97","https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83","https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e","https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2","https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409","https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89925.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89925","state":"PUBLISHED","datePublished":"2026-09-16T10:32:18.111Z","dateUpdated":"2026-10-19T08:55:00.155Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.775Z"},"containers":{"cna":{"title":"KVM: s390: Fix memory leak in guest debug handling","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Fix memory leak in guest debug handling\n\nbp_data is freed only for the error case by kfree(bp_data).\nEvery successful KVM_SET_GUEST_DEBUG will leak bp_data."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"39e7cebb889839b5762c9ad22e2d715b5883b288","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"58b1b729a9f90c80b508fc3e2174cbc0ee50859e","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"9071f75cbde3bf46119cb28e92cfbef830c4bf97","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"5940418e4232a2ff1d30ba12e0d213dbf48f0a83","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"fc2034c431adcbaabf5f8a01912358f07355349e","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"44bf3792c10f4bb3de507391f1837e020d92eaa2","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"581be9f6085834188cef1ad2f07babf3b421e409","versionType":"git"},{"version":"27291e2165b6de70c476b7b675308113edd69a60","status":"affected","lessThan":"121ea1de927c8b9bfdf53c31cad27b86d5de0293","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/guestdbg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/guestdbg.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288"},{"url":"https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e"},{"url":"https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97"},{"url":"https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83"},{"url":"https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e"},{"url":"https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2"},{"url":"https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409"},{"url":"https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:55:00.155Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}