CVE-2026-43290

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43290", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.999Z", "datePublished": "2026-05-08T13:11:14.646Z", "dateUpdated": "2026-08-05T12:27:05.626Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:27:05.626Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Return queued buffers on start_streaming() failure\n\nReturn buffers if streaming fails to start due to uvc_pm_get() error.\n\nThis bug may be responsible for a warning I got running\n\n while :; do yavta -c3 /dev/video0; done\n\non an xHCI controller which failed under this workload.\nI had no luck reproducing this warning again to confirm.\n\nxhci_hcd 0000:09:00.0: HC died; cleaning up\nusb 13-2: USB disconnect, device number 2\nWARNING: CPU: 2 PID: 29386 at drivers/media/common/videobuf2/videobuf2-core.c:1803 vb2_start_streaming+0xac/0x120"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is reached through local V4L2 ioctls such as VIDIOC_REQBUFS, VIDIOC_QBUF, and VIDIOC_STREAMON on a UVC /dev/video node. Although the device is USB-backed, the triggering interface is a local device-file ioctl path.\nAC:L - There is no race or probabilistic timing requirement in the cleanup bug; once start_streaming fails, the stale queued-buffer state is deterministic. A controlled failing/disconnecting UVC device or repeated stream-start attempts can trigger the path.\nPR:L - The attacker needs permission to open and issue ioctls on the video device node, but no kernel capability or administrative privilege is checked in the UVC/V4L2 path. This is basic local device access.\nUI:N - A local attacker can perform the required ioctl sequence directly without requiring another user to take action. The vulnerable cleanup occurs in the attacker\u2019s own stream-start attempt.\nS:U - The vulnerability affects kernel media/USB buffer management within the same security authority. It does not inherently cross a VM, IOMMU, or other separate security boundary.\nC:H - The missed UVC buffer return can leave stale driver-private irqqueue entries after vb2 force-reclaims buffers, creating a plausible use-after-free/list-corruption condition. Under the scoring rule for memory corruption and uncertainty, confidentiality impact is High.\nI:H - The stale buffer/list state can lead to kernel memory corruption when the queue is later reused or cancelled. Under the required conservative scoring, this is treated as potentially exploitable for arbitrary modification/control-flow impact.\nA:H - The known manifestation is a kernel WARN in videobuf2, and the stale queue state can progress to list corruption, UAF, oops, or panic on affected systems. This supports High availability impact."}]}], "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_queue.c"], "versions": [{"version": "7dd56c47784a466b03df62ca766207f483353cdc", "lessThan": "69c32df23bed6001864779b965fa009bcd9a26de", "status": "affected", "versionType": "git"}, {"version": "7dd56c47784a466b03df62ca766207f483353cdc", "lessThan": "a5c01f15809d1d2c319d8bfb11d071df11ab731c", "status": "affected", "versionType": "git"}, {"version": "7dd56c47784a466b03df62ca766207f483353cdc", "lessThan": "4cf3b6fd54ebb1ebc977bdc47fb6cfcf9a471a22", "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_queue.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.17", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/69c32df23bed6001864779b965fa009bcd9a26de"}, {"url": "https://git.kernel.org/stable/c/a5c01f15809d1d2c319d8bfb11d071df11ab731c"}, {"url": "https://git.kernel.org/stable/c/4cf3b6fd54ebb1ebc977bdc47fb6cfcf9a471a22"}], "title": "media: uvcvideo: Return queued buffers on start_streaming() failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/usb/uvc/uvc_queue.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "69c32df23bed6001864779b965fa009bcd9a26de", "status": "affected", "version": "7dd56c47784a466b03df62ca766207f483353cdc", "versionType": "git"}, {"lessThan": "a5c01f15809d1d2c319d8bfb11d071df11ab731c", "status": "affected", "version": "7dd56c47784a466b03df62ca766207f483353cdc", "versionType": "git"}, {"lessThan": "4cf3b6fd54ebb1ebc977bdc47fb6cfcf9a471a22", "status": "affected", "version": "7dd56c47784a466b03df62ca766207f483353cdc", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/usb/uvc/uvc_queue.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.16", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "742E05BA-773A-4EF3-822F-A4A7DED31A65", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Return queued buffers on start_streaming() failure\n\nReturn buffers if streaming fails to start due to uvc_pm_get() error.\n\nThis bug may be responsible for a warning I got running\n\n while :; do yavta -c3 /dev/video0; done\n\non an xHCI controller which failed under this workload.\nI had no luck reproducing this warning again to confirm.\n\nxhci_hcd 0000:09:00.0: HC died; cleaning up\nusb 13-2: USB disconnect, device number 2\nWARNING: CPU: 2 PID: 29386 at drivers/media/common/videobuf2/videobuf2-core.c:1803 vb2_start_streaming+0xac/0x120"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: uvcvideo: Devolver b\u00faferes en cola en caso de fallo de start_streaming()\n\nDevolver b\u00faferes si la transmisi\u00f3n falla al iniciar debido a un error de uvc_pm_get().\n\nEste error puede ser responsable de una advertencia que obtuve al ejecutar\n\n while :; do yavta -c3 /dev/video0; done\n\nen un controlador xHCI que fall\u00f3 bajo esta carga de trabajo.\nNo tuve suerte reproduciendo esta advertencia de nuevo para confirmar.\n\nxhci_hcd 0000:09:00.0: HC died; cleaning up\nusb 13-2: USB disconnect, device number 2\nWARNING: CPU: 2 PID: 29386 at drivers/media/common/videobuf2/videobuf2-core.c:1803 vb2_start_streaming+0xac/0x120"}], "id": "CVE-2026-43290", "lastModified": "2026-11-11T20:10:00.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-08T14:16:36.010", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4cf3b6fd54ebb1ebc977bdc47fb6cfcf9a471a22"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/69c32df23bed6001864779b965fa009bcd9a26de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a5c01f15809d1d2c319d8bfb11d071df11ab731c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: media: uvcvideo: Return queued buffers on start_streaming() failure", "id": "2468089", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468089"}, "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-772", "details": ["A flaw was found in the Linux kernel's `uvcvideo` module. This vulnerability occurs when the `start_streaming()` function fails to return queued buffers due to an error in `uvc_pm_get()`. A local attacker could potentially trigger this condition, leading to system instability or a denial of service (DoS) by causing the USB host controller to fail and disconnect USB devices. This issue can result in unexpected system behavior and disruption of normal operations."], "name": "CVE-2026-43290", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43290\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43290\nhttps://lore.kernel.org/linux-cve-announce/2026050852-CVE-2026-43290-8c2b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7dd56c47784a466b03df62ca766207f483353cdc,69c32df23bed6001864779b965fa009bcd9a26de)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7dd56c47784a466b03df62ca766207f483353cdc,a5c01f15809d1d2c319d8bfb11d071df11ab731c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7dd56c47784a466b03df62ca766207f483353cdc,4cf3b6fd54ebb1ebc977bdc47fb6cfcf9a471a22)"}}], "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": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-08T15:15:10.523942+00:00", "updated": "2026-05-14T23:15:35.072986+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}