CVE-2026-64209: phy: qcom: qmp-usbc: Fix out-of-bounds array access in dp swing config

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-24 · updated 2026-08-12
Weakness: CWE-125

Description

In the Linux kernel, the following vulnerability has been resolved: phy: qcom: qmp-usbc: Fix out-of-bounds array access in dp swing config swing_tbl and pre_emphasis_tbl are 4x4 arrays (valid indices 0-3), but the boundary check uses "> 4" instead of ">= 4", allowing index 4 to cause an out-of-bounds access.

Affected products

Linux kernel: from 7.0 before 7.0.11; 7.1-rc1, 7.1-rc2, 7.1-rc3, 7.1-rc4 — fixed in 7.0.11

How to fix

Upgrade to a fixed version: Linux kernel 7.0.11. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/cb35af6e7f3d5628178b58c631e305b1def8edf7
https://git.kernel.org/stable/c/ea17fc4d7dc2ba6459b1a318962960520201baf1

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