CVE-2026-46232

HID: playstation: Clamp num_touch_reports

State: Published
Severity: 8.1 High
Published: May 28, 2026
Updated: Aug 5, 2026
Reserved: May 13, 2026

Description

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

HID: playstation: Clamp num_touch_reports

A device would never lie about the number of touch reports would it?

If it does the loop in dualshock4_parse_report will read off the end of the touch_reports array, up to about 2 KiB for the maximum number of 256 loop iteraions. The data that is read is emitted via evdev if the DS4_TOUCH_POINT_INACTIVE bit happens to be set. Protect against this by clamping the num_touch_reports value provided by the device to the maximum size of the touch_reports array.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	752038248808a7ff176bbdb668f19ae7d2a9816b to before 0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4Affected 752038248808a7ff176bbdb668f19ae7d2a9816b to before 9c031b24aed6733b6dcc5d98527875b8654a04e9Affected 752038248808a7ff176bbdb668f19ae7d2a9816b to before 7812694752a5f295eaa05a093b90a2c332666051Affected 752038248808a7ff176bbdb668f19ae7d2a9816b to before 208f6d5b1dfd6399bc6af9e11f27f1f496243ed0Affected 752038248808a7ff176bbdb668f19ae7d2a9816b to before cac61b58a3b6340c52afa06bb15eac033158db2fAffected
LinuxLinux	6.2Affected before 6.2Not affected 6.6.140 through 6.6.Not affected 6.12.90 through 6.12.Not affected 6.18.32 through 6.18.Not affected 7.0.9 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

752038248808a7ff176bbdb668f19ae7d2a9816b to before 0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4Affected
752038248808a7ff176bbdb668f19ae7d2a9816b to before 9c031b24aed6733b6dcc5d98527875b8654a04e9Affected
752038248808a7ff176bbdb668f19ae7d2a9816b to before 7812694752a5f295eaa05a093b90a2c332666051Affected
752038248808a7ff176bbdb668f19ae7d2a9816b to before 208f6d5b1dfd6399bc6af9e11f27f1f496243ed0Affected
752038248808a7ff176bbdb668f19ae7d2a9816b to before cac61b58a3b6340c52afa06bb15eac033158db2fAffected

LinuxLinux

6.2Affected
before 6.2Not affected
6.6.140 through 6.6.*Not affected
6.12.90 through 6.12.*Not affected
6.18.32 through 6.18.*Not affected
7.0.9 through 7.0.*Not affected
7.1 and laterNot affected

References

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