media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
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 already enforces.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97577
- 2026-10-03 Alias added: GHSA-jj87-p9c8-ffw2
- 2026-10-03 Fix available: Linux/[email protected], Linux/Linux@95ee48eb17c91bd4859b65e0a54e7722f370d0e5 · CNA
- 2026-10-03 1 new reference · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/95ee48eb17c91bd4859b65e0a54e7722f370d0e5
- https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c
- https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0
- https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401
- https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49
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Sources
- CVE-2026-97577 · CVE Program
- CVE-2026-97577 · NVD
- FIRST EPSS
- GHSA-jj87-p9c8-ffw2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97577 · Red Hat security data · CC BY 4.0
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