CVE-2026-74437

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74437", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.897Z", "datePublished": "2026-08-15T05:59:35.297Z", "dateUpdated": "2026-08-17T05:19:23.869Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:19:23.869Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\n\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\n\nuvc_ctrl_status_event_work()\n uvc_ctrl_status_event()\n uvc_ctrl_clear_handle()\n\t uvc_pm_put()\n\t uvc_status_put()\n\t\t uvc_status_stop()\n\t\t cancel_work_sync()\n\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\n\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won't resubmit\nthe URB."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/usb/uvc/uvc_status.c"], "versions": [{"version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "lessThan": "3659deaf7bf690510899a73906b772740d94342c", "status": "affected", "versionType": "git"}, {"version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "lessThan": "7f6c5fe1633272c926361b73d83dfc6ae01b1504", "status": "affected", "versionType": "git"}, {"version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "lessThan": "6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2", "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/media/usb/uvc/uvc_status.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.16", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c"}, {"url": "https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504"}, {"url": "https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"}], "title": "media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/usb/uvc/uvc_status.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3659deaf7bf690510899a73906b772740d94342c", "status": "affected", "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "versionType": "git"}, {"lessThan": "7f6c5fe1633272c926361b73d83dfc6ae01b1504", "status": "affected", "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "versionType": "git"}, {"lessThan": "6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2", "status": "affected", "version": "a32d9c41bdb86e09ce731aa5fd3add89ac2103a5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/usb/uvc/uvc_status.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nmedia: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\n\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\n\nuvc_ctrl_status_event_work()\n uvc_ctrl_status_event()\n uvc_ctrl_clear_handle()\n\t uvc_pm_put()\n\t uvc_status_put()\n\t\t uvc_status_stop()\n\t\t cancel_work_sync()\n\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\n\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won't resubmit\nthe URB."}], "id": "CVE-2026-74437", "lastModified": "2026-08-17T06:19:39.390", "metrics": {}, "published": "2026-08-15T06:22:45.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3659deaf7bf690510899a73906b772740d94342c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7f6c5fe1633272c926361b73d83dfc6ae01b1504"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: media: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work", "id": "2516795", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516795"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-833", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: uvcvideo: Fix deadlock if uvc_status_stop is called from async_ctrl.work\nIf a UVC camera has an asynchronous control, uvc_status_stop may be\ncalled from async_ctrl.work:\nuvc_ctrl_status_event_work()\nuvc_ctrl_status_event()\nuvc_ctrl_clear_handle()\nuvc_pm_put()\nuvc_status_put()\nuvc_status_stop()\ncancel_work_sync()\nThis will cause a deadlock, since cancel_work_sync will wait for\nuvc_ctrl_status_event_work to complete before returning.\nFix this by returning early from uvc_status_stop if we are currently in\nthe work function. flush_status now remains false until uvc_status_start\nis called again, ensuring that uvc_ctrl_status_event_work won't resubmit\nthe URB.", "A flaw was found in the Linux kernel's uvcvideo module, which manages USB Video Class (UVC) devices. When a UVC camera with asynchronous control is in use, a specific sequence of operations can lead to a deadlock within the kernel. This vulnerability could allow a local attacker to cause a system-wide denial of service."], "name": "CVE-2026-74437", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74437\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74437\nhttps://lore.kernel.org/linux-cve-announce/2026081516-CVE-2026-74437-cf86@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a32d9c41bdb86e09ce731aa5fd3add89ac2103a5,3659deaf7bf690510899a73906b772740d94342c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a32d9c41bdb86e09ce731aa5fd3add89ac2103a5,7f6c5fe1633272c926361b73d83dfc6ae01b1504)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[a32d9c41bdb86e09ce731aa5fd3add89ac2103a5,6d27f92c54ce28cfbd2a8a479a96d6f4a781b7d2)"}}], "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": "semver", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-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": "2026-08-15T16:00:07.797919+00:00", "updated": "2026-08-21T22:30:17.639439+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}