CVE-2026-46232
What it is
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.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of data exposure, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 6.6.140
- Linux Kernel < 6.12.90
- Linux Kernel < 6.18.32
- Linux Kernel < 7.0.9
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Fix and advisories
- https://git.kernel.org/stable/c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4
- https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0
- https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051
- https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9
- https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2f
References
- https://git.kernel.org/stable/c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4
- https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0
- https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051
- https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9
- https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2f