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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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-28 | Updated 2026-05-30 | Assigner Linux




HIGH: 8.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Product status

Default status
unaffected

752038248808a7ff176bbdb668f19ae7d2a9816b (git) before 0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4
affected

752038248808a7ff176bbdb668f19ae7d2a9816b (git) before 9c031b24aed6733b6dcc5d98527875b8654a04e9
affected

752038248808a7ff176bbdb668f19ae7d2a9816b (git) before 7812694752a5f295eaa05a093b90a2c332666051
affected

752038248808a7ff176bbdb668f19ae7d2a9816b (git) before 208f6d5b1dfd6399bc6af9e11f27f1f496243ed0
affected

752038248808a7ff176bbdb668f19ae7d2a9816b (git) before cac61b58a3b6340c52afa06bb15eac033158db2f
affected

Default status
affected

6.2
affected

Any version before 6.2
unaffected

6.6.140 (semver)
unaffected

6.12.90 (semver)
unaffected

6.18.32 (semver)
unaffected

7.0.9 (semver)
unaffected

7.1-rc4 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4

git.kernel.org/...c/9c031b24aed6733b6dcc5d98527875b8654a04e9

git.kernel.org/...c/7812694752a5f295eaa05a093b90a2c332666051

git.kernel.org/...c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0

git.kernel.org/...c/cac61b58a3b6340c52afa06bb15eac033158db2f

cve.org (CVE-2026-46232)

nvd.nist.gov (CVE-2026-46232)

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