HID: hidpp: fix potential UAF in hidpp_connect_event()
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
EPSS 0.00234 14th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.189, 6.6.158, 6.12.111 +2Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-93826
- 2026-10-03 Alias added: GHSA-3wpc-2mx8-q7f6
- 2026-10-03 Fix available: Linux/Linux@5d7637f4d050d105177217e64b869f56f9825060, Linux/[email protected], Linux/[email protected] +1 · CNA
- 2026-10-03 2 new references · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276e
- https://git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060
- https://git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133
- https://git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3
- https://git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893b
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-93826 · CVE Program
- CVE-2026-93826 · NVD
- FIRST EPSS
- GHSA-3wpc-2mx8-q7f6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-93826 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences