{"id":"CVE-2022-4696","state":"PUBLISHED","title":"There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which","description":"There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above\n","publishedAt":"2023-01-11T12:33:41.024Z","updatedAt":"2024-08-03T01:48:40.470Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Google"},"assigner":"Google","products":["Linux Linux Kernel"],"affected":[{"vendor":"Linux","product":"Linux Kernel","packageName":"kernel","defaultStatus":"unaffected","versions":[{"version":"5.7-rc1","status":"affected","lessThanOrEqual":"5.10.159","versionType":"custom"}],"repo":"https://git.kernel.org"}],"references":["https://kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a","https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=75454b4bbfc7e6a4dd8338556f36ea9107ddf61a","https://security.netapp.com/advisory/ntap-20230223-0003/"],"weaknesses":["CWE-763"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/4xxx/CVE-2022-4696.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-4696","state":"PUBLISHED","datePublished":"2023-01-11T12:33:41.024Z","dateUpdated":"2024-08-03T01:48:40.470Z","assignerShortName":"Google","assignerOrgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateReserved":"2022-12-23T13:11:04.948Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling io_splice on specific files will call the get_uts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above\n"}],"affected":[{"vendor":"Linux","product":"Linux Kernel","packageName":"kernel","defaultStatus":"unaffected","versions":[{"version":"5.7-rc1","status":"affected","lessThanOrEqual":"5.10.159","versionType":"custom"}],"repo":"https://git.kernel.org"}],"references":[{"url":"https://kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=75454b4bbfc7e6a4dd8338556f36ea9107ddf61a"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-763","description":"CWE-763 Release of Invalid Pointer or Reference","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Google","orgId":"14ed7db2-1595-443d-9d34-6215bf890778","dateUpdated":"2023-01-11T12:33:41.024Z"},"credits":[{"lang":"en","type":"finder","user":"00000000-0000-4000-9000-000000000000","value":"Bing-Jhong Billy Jheng of Starlabs"}],"datePublic":"2022-12-15T05:43:00.000Z","impacts":[{"capecId":"CAPEC-251","descriptions":[{"lang":"en","value":"CAPEC-251 Local Code Inclusion"}]}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://security.netapp.com/advisory/ntap-20230223-0003/"},{"url":"https://kernel.dance/#75454b4bbfc7e6a4dd8338556f36ea9107ddf61a","tags":["x_transferred"]},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=75454b4bbfc7e6a4dd8338556f36ea9107ddf61a","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T01:48:40.470Z"}},{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"linux","product":"linux_kernel","defaultStatus":"unknown","versions":[{"version":"5.7-rc1","status":"affected","lessThanOrEqual":"5.10.159","versionType":"custom"}],"cpes":["cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-01T13:26:32.245783Z","id":"CVE-2022-4696","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-08-01T13:27:43.575Z"}}]}}}