CVE-2026-89734

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89734", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.760Z", "datePublished": "2026-09-11T19:46:43.261Z", "dateUpdated": "2026-10-19T08:51:47.513Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:51:47.513Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "versions": [{"version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "lessThan": "dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2", "status": "affected", "versionType": "git"}, {"version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "lessThan": "d511e015d06767f52bb18d48371cab6d7cb88433", "status": "affected", "versionType": "git"}, {"version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "lessThan": "5b1da38592efdc1a263d4c0353298cba19e9d6fc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.13", "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"}]}]}], "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"}], "title": "usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2", "status": "affected", "version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "versionType": "git"}, {"lessThan": "d511e015d06767f52bb18d48371cab6d7cb88433", "status": "affected", "version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "versionType": "git"}, {"lessThan": "5b1da38592efdc1a263d4c0353298cba19e9d6fc", "status": "affected", "version": "f0bbfbd16b3b67106535299d6a9ca3a5565494a6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/gadget/function/uvc_video.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-89734", "lastModified": "2026-10-19T09:18:16.140", "metrics": {}, "published": "2026-09-11T20:20:03.860", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5b1da38592efdc1a263d4c0353298cba19e9d6fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d511e015d06767f52bb18d48371cab6d7cb88433"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Denial of Service due to null pointer dereference in USB Video Class gadget driver", "id": "2532458", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532458"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's USB Video Class (UVC) gadget driver. This vulnerability occurs in the `uvcg_video_init()` function when the `kthread_run_worker()` function fails. In such a scenario, an error logging mechanism attempts to access an uninitialized pointer, leading to a null pointer dereference. This can result in a system crash, causing a Denial of Service (DoS)."], "name": "CVE-2026-89734", "public_date": "2026-09-11T19:46:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89734\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89734\nhttps://git.kernel.org/stable/c/5b1da38592efdc1a263d4c0353298cba19e9d6fc\nhttps://git.kernel.org/stable/c/d511e015d06767f52bb18d48371cab6d7cb88433\nhttps://git.kernel.org/stable/c/dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f0bbfbd16b3b67106535299d6a9ca3a5565494a6,dbe2762ae8e543b06c57f1ac6512b02fd3fd09b2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f0bbfbd16b3b67106535299d6a9ca3a5565494a6,d511e015d06767f52bb18d48371cab6d7cb88433)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f0bbfbd16b3b67106535299d6a9ca3a5565494a6,5b1da38592efdc1a263d4c0353298cba19e9d6fc)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-12T09:30:13.015667+00:00", "updated": "2026-09-15T19:30:12.133359+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}