GHSA-JJ87-P9C8-FFW2
Vulnerability from github – Published: 2026-09-25 12:31 – Updated: 2026-10-03 12:31In the Linux kernel, the following vulnerability has been resolved:
media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity
rockchip_vpu981_av1_dec_set_tile_info() indexes the tile group entry array by tile1 * tile_cols + tile0, reading up to tile_cols * tile_rows entries, lays out one descriptor per tile in the AV1_MAX_TILES tile_info buffer, and programs the real tile_cols / tile_rows into the hardware.
The tile group entry control is a dynamic array sized to the number of entries userspace submitted, independent of tile_cols / tile_rows, so a frame that claims more tiles than entries reads past the array. A frame that claims more than AV1_MAX_TILES tiles also leaves the hardware programmed for more tiles than the descriptor buffer holds.
Reject both in prepare_run(): tile_cols * tile_rows must not exceed the submitted entry count or AV1_MAX_TILES. The entry count is read via v4l2_ctrl_find() (ctrl->elems). This mirrors the bound the mediatek AV1 decoder already enforces.
{
"affected": [],
"aliases": [
"CVE-2026-97577"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T11:17:08Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity\n\nrockchip_vpu981_av1_dec_set_tile_info() indexes the tile group entry\narray by tile1 * tile_cols + tile0, reading up to tile_cols * tile_rows\nentries, lays out one descriptor per tile in the AV1_MAX_TILES tile_info\nbuffer, and programs the real tile_cols / tile_rows into the hardware.\n\nThe tile group entry control is a dynamic array sized to the number of\nentries userspace submitted, independent of tile_cols / tile_rows, so a\nframe that claims more tiles than entries reads past the array. A frame\nthat claims more than AV1_MAX_TILES tiles also leaves the hardware\nprogrammed for more tiles than the descriptor buffer holds.\n\nReject both in prepare_run(): tile_cols * tile_rows must not exceed the\nsubmitted entry count or AV1_MAX_TILES. The entry count is read via\nv4l2_ctrl_find() (ctrl-\u003eelems). This mirrors the bound the mediatek AV1\ndecoder already enforces.",
"id": "GHSA-jj87-p9c8-ffw2",
"modified": "2026-10-03T12:31:17Z",
"published": "2026-09-25T12:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97577"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95ee48eb17c91bd4859b65e0a54e7722f370d0e5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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