{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93163","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T16:02:15.089Z","datePublished":"2026-09-17T16:11:56.570Z","dateUpdated":"2026-09-17T16:11:56.570Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:56.570Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - fix rng list on registration error\n\nhwrng_register(rng) does the following:\n\n1. Checks if rng has name and read methods set\n2. Checks if the name already exists\n3. Adds rng to global rng_list\n4. May try to set rng to current_rng\n\nIf step 4 fails, it returns an error. However, it does not remove the\nrng from rng_list, causing a dangling reference which can result in\nuse-after-free if the caller frees rng, since registration failed.\n\nAdd a list_del_init() cleanup step."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/core.c"],"versions":[{"version":"2bbb6983887fefc8026beab01198d30f47b7bd22","lessThan":"de4f1bcb61a73cc896decdbd27d61a34add93b53","status":"affected","versionType":"git"},{"version":"2bbb6983887fefc8026beab01198d30f47b7bd22","lessThan":"cf293c9c7424de0d04b51367d07f40570ce80231","status":"affected","versionType":"git"},{"version":"2bbb6983887fefc8026beab01198d30f47b7bd22","lessThan":"bee8d1fcdc8f389b595b0a4cf6fe8440f499458a","status":"affected","versionType":"git"},{"version":"2bbb6983887fefc8026beab01198d30f47b7bd22","lessThan":"3a5834db2b1ce25649f330e78efe1ccde78967fd","status":"affected","versionType":"git"},{"version":"42802952a2725f85f7e36ee3b29593af5fe87197","status":"affected","versionType":"git"},{"version":"4.9.320","lessThan":"4.10","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/core.c"],"versions":[{"version":"4.14","status":"affected"},{"version":"0","lessThan":"4.14","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"4.14","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.320"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/de4f1bcb61a73cc896decdbd27d61a34add93b53"},{"url":"https://git.kernel.org/stable/c/cf293c9c7424de0d04b51367d07f40570ce80231"},{"url":"https://git.kernel.org/stable/c/bee8d1fcdc8f389b595b0a4cf6fe8440f499458a"},{"url":"https://git.kernel.org/stable/c/3a5834db2b1ce25649f330e78efe1ccde78967fd"}],"title":"hwrng: core - fix rng list on registration error","x_generator":{"engine":"bippy-1.2.0"}}}}