CVE-2024-42117

drm/amd/display: ASSERT when failing to find index by plane/stream id

State: Published
Severity: 7.8 High
Published: Jul 30, 2024
Updated: Aug 5, 2026
Reserved: Jul 29, 2024

Description

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

drm/amd/display: ASSERT when failing to find index by plane/stream id

[WHY] find_disp_cfg_idx_by_plane_id and find_disp_cfg_idx_by_stream_id returns an array index and they return -1 when not found; however, -1 is not a valid index number.

[HOW] When this happens, call ASSERT(), and return a positive number (which is fewer than callers' array size) instead.

This fixes 4 OVERRUN and 2 NEGATIVE_RETURNS issues reported by Coverity.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7966f319c66d9468623c6a6a017ecbc0dd79be75 to before a9c047a5cf3135b8b66bd28fbe2c698b9cace0b3Affected 7966f319c66d9468623c6a6a017ecbc0dd79be75 to before 01eb50e53c1ce505bf449348d433181310288765Affected
LinuxLinux	6.7Affected before 6.7Not affected 6.9.9 through 6.9.*Not affected 6.10 and laterNot affected

References

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