CVE-2026-97578

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer

rockchip_vpu981_av1_dec_set_tile_info() divides context_update_tile_id by tile_info->tile_cols and writes one descriptor per tile into the tile_info DMA buffer, which holds AV1_MAX_TILES entries; tile_cols and tile_rows come from the bitstream. Guard the division against a zero tile_cols by initialising the context-update values to zero and computing them only when tile_cols is non-zero, and stop the descriptor writes once the tile_info buffer is full. The tile geometry written to the hardware registers is left unmodified; the per-dimension and total tile bounds are enforced by the control validation.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux727a400686a2c0d25015c9e44916a59b72882f83 < 7baa7bb1b784c19170df8c99466fa412040eb431affected
LinuxLinux727a400686a2c0d25015c9e44916a59b72882f83 < 8f19d869a9f6800547c9ad7ebaf3b94f973dab50affected
LinuxLinux727a400686a2c0d25015c9e44916a59b72882f83 < 6b7a281a815ae7c5e7bb2aad039ffea9bc933157affected
LinuxLinux727a400686a2c0d25015c9e44916a59b72882f83 < b84f6533a8ed2fd7b282fc7ab4b8efadc745a89caffected
LinuxLinux6.5affected
LinuxLinux0 < 6.5unaffected
LinuxLinux6.12.111 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References