{"id":"CVE-2026-97578","summary":"media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer\n\nrockchip_vpu981_av1_dec_set_tile_info() divides context_update_tile_id by\ntile_info-\u003etile_cols and writes one descriptor per tile into the tile_info\nDMA buffer, which holds AV1_MAX_TILES entries; tile_cols and tile_rows\ncome from the bitstream. Guard the division against a zero tile_cols by\ninitialising the context-update values to zero and computing them only\nwhen tile_cols is non-zero, and stop the descriptor writes once the\ntile_info buffer is full. The tile geometry written to the hardware\nregisters is left unmodified; the per-dimension and total tile bounds are\nenforced by the control validation.","modified":"2026-09-26T03:48:36.143451588Z","published":"2026-09-25T10:22:00.541Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97578.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b7a281a815ae7c5e7bb2aad039ffea9bc933157"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7baa7bb1b784c19170df8c99466fa412040eb431"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8f19d869a9f6800547c9ad7ebaf3b94f973dab50"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b84f6533a8ed2fd7b282fc7ab4b8efadc745a89c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97578.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97578"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"727a400686a2c0d25015c9e44916a59b72882f83"},{"fixed":"7baa7bb1b784c19170df8c99466fa412040eb431"},{"fixed":"8f19d869a9f6800547c9ad7ebaf3b94f973dab50"},{"fixed":"6b7a281a815ae7c5e7bb2aad039ffea9bc933157"},{"fixed":"b84f6533a8ed2fd7b282fc7ab4b8efadc745a89c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97578.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.5.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97578.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}