Riskcovery

CVE-2026-97580

media: rkvdec: bound HEVC tile loops and PPS id to the array capacity

State
Published
Severity
7.8 High
Published
Sep 25, 2026
Updated
Oct 19, 2026
Reserved
Sep 24, 2026

Read the record on cve.org

Description

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

media: rkvdec: bound HEVC tile loops and PPS id to the array capacity

compute_tiles_uniform() and compute_tiles_non_uniform() loop over num_tile_columns_minus1 + 1 / num_tile_rows_minus1 + 1 entries, and assemble_hw_pps() writes one COLUMN_WIDTH / ROW_HEIGHT register per tile and indexes priv_tbl->param_set[] by pic_parameter_set_id, all taken from the untrusted PPS. Use the bounded v4l2_hevc_pps_num_tile_columns() / v4l2_hevc_pps_num_tile_rows() helpers for the tile loops, and bail out of assemble_hw_pps() before indexing priv_tbl->param_set[] with an out-of-range pic_parameter_set_id, so the writes stay within the hardware tables.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 3595375c2301653d5440d54b396df03499686c20 to before 03beb248d8a7bab30559a60d4df81f167e63b9e3Affected
  • 3595375c2301653d5440d54b396df03499686c20 to before 81ad46bb33d8fd279aaa33af5296c648814c964bAffected
LinuxLinux
  • 6.19Affected
  • before 6.19Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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