media: verisilicon: rockchip: guard VPU981 AV1 divisor and tile buffer
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.158, 6.12.111, 6.18.53, 7.2.7
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 727a400686a2c0d25015c9e44916a59b72882f83 · fixed in 8659e5fc21a82e00fb2db1557f2e06f0fca06b90; From 727a400686a2c0d25015c9e44916a59b72882f83 · fixed in 7baa7bb1b784c19170df8c99466fa412040eb431; From 727a400686a2c0d25015c9e44916a59b72882f83 · fixed in 8f19d869a9f6800547c9ad7ebaf3b94f973dab50; From 727a400686a2c0d25015c9e44916a59b72882f83 · fixed in 6b7a281a815ae7c5e7bb2aad039ffea9bc933157; From 727a400686a2c0d25015c9e44916a59b72882f83 · fixed in b84f6533a8ed2fd7b282fc7ab4b8efadc745a89c
- Linux Linux
6.5
- KernelLinux
From 6.5.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7