CVE-2022-49186

clk: visconti: prevent array overflow in visconti_clk_register_gates()

State: Published
Severity: 7.8 High
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

Description

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

clk: visconti: prevent array overflow in visconti_clk_register_gates()

This code was using -1 to represent that there was no reset function. Unfortunately, the -1 was stored in u8 so the if (clks[i].rs_id >= 0) condition was always true. This lead to an out of bounds access in visconti_clk_register_gates().

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	CISA-ADP

Weaknesses

CWE-129 Improper Validation of Array Index

Affected Products

Product	Versions
LinuxLinux	b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa to before 2723543c1d60278d5aef1c4ad732dbad24b84a81Affected b4cbe606dc3674b25cb661e7cd1a1c6ddaaafaaa to before c5601e0720ce1a3ad895f94a5838530edde01ed3Affected
LinuxLinux	5.17Affected before 5.17Not affected 5.17.2 through 5.17.*Not affected 5.18 and laterNot affected

References

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