{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49568","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T02:21:30.410Z","datePublished":"2025-02-26T02:23:12.722Z","dateUpdated":"2025-10-01T19:46:37.824Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-06-19T12:56:21.639Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: Don't null dereference ops->destroy\n\nA KVM device cleanup happens in either of two callbacks:\n1) destroy() which is called when the VM is being destroyed;\n2) release() which is called when a device fd is closed.\n\nMost KVM devices use 1) but Book3s's interrupt controller KVM devices\n(XICS, XIVE, XIVE-native) use 2) as they need to close and reopen during\nthe machine execution. The error handling in kvm_ioctl_create_device()\nassumes destroy() is always defined which leads to NULL dereference as\ndiscovered by Syzkaller.\n\nThis adds a checks for destroy!=NULL and adds a missing release().\n\nThis is not changing kvm_destroy_devices() as devices with defined\nrelease() should have been removed from the KVM devices list by then."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["virt/kvm/kvm_main.c"],"versions":[{"version":"852b6d57dc7fa378019786fa84727036e56839ea","lessThan":"170465715a60cbb7876e6b961b21bd3225469da8","status":"affected","versionType":"git"},{"version":"852b6d57dc7fa378019786fa84727036e56839ea","lessThan":"3616776bc51cd3262bb1be60cc01c72e0a1959cf","status":"affected","versionType":"git"},{"version":"852b6d57dc7fa378019786fa84727036e56839ea","lessThan":"e91665fbbf3ccb268b268a7d71a6513538d813ac","status":"affected","versionType":"git"},{"version":"852b6d57dc7fa378019786fa84727036e56839ea","lessThan":"d4a5a79b780891c5cbdfdc6124d46fdf8d13dba1","status":"affected","versionType":"git"},{"version":"852b6d57dc7fa378019786fa84727036e56839ea","lessThan":"e8bc2427018826e02add7b0ed0fc625a60390ae5","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["virt/kvm/kvm_main.c"],"versions":[{"version":"3.10","status":"affected"},{"version":"0","lessThan":"3.10","status":"unaffected","versionType":"semver"},{"version":"5.4.210","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.134","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.58","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.18.15","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":"3.10","versionEndExcluding":"5.4.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.18.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/170465715a60cbb7876e6b961b21bd3225469da8"},{"url":"https://git.kernel.org/stable/c/3616776bc51cd3262bb1be60cc01c72e0a1959cf"},{"url":"https://git.kernel.org/stable/c/e91665fbbf3ccb268b268a7d71a6513538d813ac"},{"url":"https://git.kernel.org/stable/c/d4a5a79b780891c5cbdfdc6124d46fdf8d13dba1"},{"url":"https://git.kernel.org/stable/c/e8bc2427018826e02add7b0ed0fc625a60390ae5"}],"title":"KVM: Don't null dereference ops->destroy","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-49568","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:36:56.420307Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T19:46:37.824Z"}}]}}