{"id":"CVE-2026-23096","state":"PUBLISHED","title":"uacce: fix cdev handling in the cleanup path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: fix cdev handling in the cleanup path\n\nWhen cdev_device_add fails, it internally releases the cdev memory,\nand if cdev_device_del is then executed, it will cause a hang error.\nTo fix it, we check the return value of cdev_device_add() and clear\nuacce->cdev to avoid calling cdev_device_del in the uacce_remove.","publishedAt":"2026-02-04T16:08:18.785Z","updatedAt":"2026-05-11T21:59:55.485Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"c94c7188d325bc5137d447d67a2f18f7d4f2f4a3","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"1bc3e51367c420e6db31f41efa874c7a8e12194a","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"819d647406200d0e83e56fd2df8f451b11290559","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"d9031575a2f8aabc53af3025dd79af313a2e046b","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"98d67a1bd6caddd0a8b8c82a0b925742cf500936","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"bd2393ed7712513e7e2dbcb6e21464a67ff9e702","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"a3bece3678f6c88db1f44c602b2a63e84b4040ac","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/uacce/uacce.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/uacce/uacce.c"]}],"references":["https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3","https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a","https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559","https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b","https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936","https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702","https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23096.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23096","state":"PUBLISHED","datePublished":"2026-02-04T16:08:18.785Z","dateUpdated":"2026-05-11T21:59:55.485Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.964Z"},"containers":{"cna":{"title":"uacce: fix cdev handling in the cleanup path","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: fix cdev handling in the cleanup path\n\nWhen cdev_device_add fails, it internally releases the cdev memory,\nand if cdev_device_del is then executed, it will cause a hang error.\nTo fix it, we check the return value of cdev_device_add() and clear\nuacce->cdev to avoid calling cdev_device_del in the uacce_remove."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"c94c7188d325bc5137d447d67a2f18f7d4f2f4a3","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"1bc3e51367c420e6db31f41efa874c7a8e12194a","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"819d647406200d0e83e56fd2df8f451b11290559","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"d9031575a2f8aabc53af3025dd79af313a2e046b","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"98d67a1bd6caddd0a8b8c82a0b925742cf500936","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"bd2393ed7712513e7e2dbcb6e21464a67ff9e702","versionType":"git"},{"version":"015d239ac0142ad0e26567fd890ef8d171f13709","status":"affected","lessThan":"a3bece3678f6c88db1f44c602b2a63e84b4040ac","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/uacce/uacce.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/uacce/uacce.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3"},{"url":"https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a"},{"url":"https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559"},{"url":"https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b"},{"url":"https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936"},{"url":"https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702"},{"url":"https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:59:55.485Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}