{"id":"CVE-2026-89734","state":"PUBLISHED","title":"usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()\n\nIn uvcg_video_init(), if kthread_run_worker() fails,\nthe error logged uses uvcg_err(), however, the pointer it uses:\nvideo->uvc is not assigned at this point, triggering a null\npointer dereference. Fix this by directly using uvc->func which\nis assigned already.","publishedAt":"2026-09-11T19:46:43.261Z","updatedAt":"2026-10-19T08:51:47.513Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2","versionType":"git"},{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"d511e015d06767f52bb18d48371cab6d7cb88433","versionType":"git"},{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"5b1da38592efdc1a263d4c0353298cba19e9d6fc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/function/uvc_video.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/function/uvc_video.c"]}],"references":["https://git.kernel.org/stable/c/dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2","https://git.kernel.org/stable/c/d511e015d06767f52bb18d48371cab6d7cb88433","https://git.kernel.org/stable/c/5b1da38592efdc1a263d4c0353298cba19e9d6fc"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89734.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89734","state":"PUBLISHED","datePublished":"2026-09-11T19:46:43.261Z","dateUpdated":"2026-10-19T08:51:47.513Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.760Z"},"containers":{"cna":{"title":"usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()\n\nIn uvcg_video_init(), if kthread_run_worker() fails,\nthe error logged uses uvcg_err(), however, the pointer it uses:\nvideo->uvc is not assigned at this point, triggering a null\npointer dereference. Fix this by directly using uvc->func which\nis assigned already."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2","versionType":"git"},{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"d511e015d06767f52bb18d48371cab6d7cb88433","versionType":"git"},{"version":"f0bbfbd16b3b67106535299d6a9ca3a5565494a6","status":"affected","lessThan":"5b1da38592efdc1a263d4c0353298cba19e9d6fc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/function/uvc_video.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/function/uvc_video.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2"},{"url":"https://git.kernel.org/stable/c/d511e015d06767f52bb18d48371cab6d7cb88433"},{"url":"https://git.kernel.org/stable/c/5b1da38592efdc1a263d4c0353298cba19e9d6fc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:51:47.513Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}