{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-52895","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-08-21T06:07:11.013Z","datePublished":"2024-08-21T06:10:35.179Z","dateUpdated":"2025-05-04T07:45:28.206Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:45:28.206Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/poll: don't reissue in case of poll race on multishot request\n\nA previous commit fixed a poll race that can occur, but it's only\napplicable for multishot requests. For a multishot request, we can safely\nignore a spurious wakeup, as we never leave the waitqueue to begin with.\n\nA blunt reissue of a multishot armed request can cause us to leak a\nbuffer, if they are ring provided. While this seems like a bug in itself,\nit's not really defined behavior to reissue a multishot request directly.\nIt's less efficient to do so as well, and not required to rearm anything\nlike it is for singleshot poll requests."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/poll.c"],"versions":[{"version":"c06015ebc4367be38904b88582e13cc079672075","lessThan":"36fc7317cdb16cfeae0f879916995037bb615ac4","status":"affected","versionType":"git"},{"version":"6e5aedb9324aab1c14a23fae3d8eeb64a679c20e","lessThan":"8caa03f10bf92cb8657408a6ece6a8a73f96ce13","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/poll.c"],"versions":[{"version":"6.1.7","lessThan":"6.1.8","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.7","versionEndExcluding":"6.1.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/36fc7317cdb16cfeae0f879916995037bb615ac4"},{"url":"https://git.kernel.org/stable/c/8caa03f10bf92cb8657408a6ece6a8a73f96ce13"}],"title":"io_uring/poll: don't reissue in case of poll race on multishot request","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52895","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T16:03:46.864583Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-12T17:33:13.444Z"}}]}}