{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23259","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.990Z","datePublished":"2026-03-18T17:41:05.827Z","dateUpdated":"2026-11-05T21:33:34.031Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-21T12:39:03.826Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/rw: free potentially allocated iovec on cache put failure\n\nIf a read/write request goes through io_req_rw_cleanup() and has an\nallocated iovec attached and fails to put to the rw_cache, then it may\nend up with an unaccounted iovec pointer. Have io_rw_recycle() return\nwhether it recycled the request or not, and use that to gauge whether to\nfree a potential iovec or not."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/rw.c"],"versions":[{"version":"a9165b83c1937eeed1f0c731468216d6371d647f","lessThan":"41cda4c66846c3bfcdeaf28444ccabbb55e64cf1","status":"affected","versionType":"git"},{"version":"a9165b83c1937eeed1f0c731468216d6371d647f","lessThan":"1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c","status":"affected","versionType":"git"},{"version":"a9165b83c1937eeed1f0c731468216d6371d647f","lessThan":"4b9748055457ac3a0710bf210c229d01ea1b01b9","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/rw.c"],"versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.12.114","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.10","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"6.10","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/41cda4c66846c3bfcdeaf28444ccabbb55e64cf1"},{"url":"https://git.kernel.org/stable/c/1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c"},{"url":"https://git.kernel.org/stable/c/4b9748055457ac3a0710bf210c229d01ea1b01b9"}],"title":"io_uring/rw: free potentially allocated iovec on cache put failure","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-23259","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-11-05T21:24:08.498519Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-05T21:33:34.031Z"}}]}}