CVE-2026-46232
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?
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4Patch
- https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0Patch
- https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051Patch
- https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9Patch
- https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.