{"id":"CVE-2026-97577","published":"2026-09-25T11:17:08.447","lastModified":"2026-09-25T15:17:59.807","description":"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->elems). This mirrors the bound the mediatek AV1\ndecoder already enforces.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49","tags":[]},{"url":"https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c","tags":[]},{"url":"https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0","tags":[]},{"url":"https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}