GHSA-59F3-F666-RHR8
Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32In the Linux kernel, the following vulnerability has been resolved:
media: cedrus: skip invalid H.264 reference list entries
Cedrus consumes H.264 ref_pic_list0/ref_pic_list1 entries from the stateless slice control and later uses their indices to look up decode->dpb[] in _cedrus_write_ref_list().
Rejecting such controls in cedrus_try_ctrl() would break existing userspace, since stateless H.264 reference lists may legitimately carry out-of-range indices for missing references. Instead, guard the actual DPB lookup in Cedrus and skip entries whose indices do not fit the fixed V4L2_H264_NUM_DPB_ENTRIES array.
This keeps the fix local to the driver use site and avoids out-of-bounds reads from malformed or unsupported reference list entries.
{
"affected": [],
"aliases": [
"CVE-2026-68229"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-10T13:20:11Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cedrus: skip invalid H.264 reference list entries\n\nCedrus consumes H.264 ref_pic_list0/ref_pic_list1 entries from the\nstateless slice control and later uses their indices to look up\ndecode-\u003edpb[] in _cedrus_write_ref_list().\n\nRejecting such controls in cedrus_try_ctrl() would break existing\nuserspace, since stateless H.264 reference lists may legitimately carry\nout-of-range indices for missing references. Instead, guard the actual\nDPB lookup in Cedrus and skip entries whose indices do not fit the fixed\nV4L2_H264_NUM_DPB_ENTRIES array.\n\nThis keeps the fix local to the driver use site and avoids out-of-bounds\nreads from malformed or unsupported reference list entries.",
"id": "GHSA-59f3-f666-rhr8",
"modified": "2026-08-19T18:32:11Z",
"published": "2026-08-10T15:33:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68229"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0af8945fcae742d099f59f3c725eb67235953a31"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/10358ea986c3c85516d1c8206486464f79d36e76"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1db34683b0fbbcb3bc162380c11514ea0a44e8ab"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2ee8327c85b3ac7b532d2d6a1e3a295d5ad7414a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7ff6f728a2433b420bb372cb0e8a4eea3f2e1a4b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9924cb548ee7753a6473997949c3ec48092de0b0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6a109771c51920beb620f30778c29da823cc34c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e53112c2de88982e66c369aee2120d5efd78df30"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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