Description
In the Linux kernel, the following vulnerability has been resolved: HID: hidpp: fix potential UAF in hidpp_connect_event() If input_register_device() fails, we call input_free_device(), but keep stale pointer to the old device in hidpp->input, which could potentially lead to UAF. Fix that by resetting it to NULL before returning from hidpp_connect_event().
References5
- git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3
- git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133
- git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060
- git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893b
- git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276e
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 14 · as of 9 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.