{"id":"CVE-2026-23094","state":"PUBLISHED","title":"uacce: fix isolate sysfs check condition","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: fix isolate sysfs check condition\n\nuacce supports the device isolation feature. If the driver\nimplements the isolate_err_threshold_read and\nisolate_err_threshold_write callback functions, uacce will create\nsysfs files now. Users can read and configure the isolation policy\nthrough sysfs. Currently, sysfs files are created as long as either\nisolate_err_threshold_read or isolate_err_threshold_write callback\nfunctions are present.\n\nHowever, accessing a non-existent callback function may cause the\nsystem to crash. Therefore, intercept the creation of sysfs if\nneither read nor write exists; create sysfs if either is supported,\nbut intercept unsupported operations at the call site.","publishedAt":"2026-02-04T16:08:17.061Z","updatedAt":"2026-05-11T21:59:53.127Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"9ab05cdcac354b1b1139918f49c6418b9005d042","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"fdbbb47d15ae17bf39fafec7e2028c1f8efba15e","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"82821a681d5dcce31475a65190fc39ea8f372cc0","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"98eec349259b1fd876f350b1c600403bcef8f85d","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":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","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/9ab05cdcac354b1b1139918f49c6418b9005d042","https://git.kernel.org/stable/c/fdbbb47d15ae17bf39fafec7e2028c1f8efba15e","https://git.kernel.org/stable/c/82821a681d5dcce31475a65190fc39ea8f372cc0","https://git.kernel.org/stable/c/98eec349259b1fd876f350b1c600403bcef8f85d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23094.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23094","state":"PUBLISHED","datePublished":"2026-02-04T16:08:17.061Z","dateUpdated":"2026-05-11T21:59:53.127Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.963Z"},"containers":{"cna":{"title":"uacce: fix isolate sysfs check condition","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nuacce: fix isolate sysfs check condition\n\nuacce supports the device isolation feature. If the driver\nimplements the isolate_err_threshold_read and\nisolate_err_threshold_write callback functions, uacce will create\nsysfs files now. Users can read and configure the isolation policy\nthrough sysfs. Currently, sysfs files are created as long as either\nisolate_err_threshold_read or isolate_err_threshold_write callback\nfunctions are present.\n\nHowever, accessing a non-existent callback function may cause the\nsystem to crash. Therefore, intercept the creation of sysfs if\nneither read nor write exists; create sysfs if either is supported,\nbut intercept unsupported operations at the call site."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"9ab05cdcac354b1b1139918f49c6418b9005d042","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"fdbbb47d15ae17bf39fafec7e2028c1f8efba15e","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"82821a681d5dcce31475a65190fc39ea8f372cc0","versionType":"git"},{"version":"e3e289fbc0b520cf469469e8cdba84a50424eb65","status":"affected","lessThan":"98eec349259b1fd876f350b1c600403bcef8f85d","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":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","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/9ab05cdcac354b1b1139918f49c6418b9005d042"},{"url":"https://git.kernel.org/stable/c/fdbbb47d15ae17bf39fafec7e2028c1f8efba15e"},{"url":"https://git.kernel.org/stable/c/82821a681d5dcce31475a65190fc39ea8f372cc0"},{"url":"https://git.kernel.org/stable/c/98eec349259b1fd876f350b1c600403bcef8f85d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:59:53.127Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}