CVE-2026-97577

/// Technical description

In 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 alrea

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References