159 lines
8.7 KiB
JSON
159 lines
8.7 KiB
JSON
{
|
||
"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’s 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"
|
||
}
|
||
}
|
||
}
|
||
} |