CVE-2026-93826
Published: September 26, 2026Last modified: October 6, 2026
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().
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3
- https://git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133
- https://git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060
- https://git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893b
- https://git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276e