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CVE-2026-93826

HID: hidpp: fix potential UAF in hidpp_connect_event()

HIGH
7.5
CVSS Score
Published: September 24, 2026 at 04:03 PM UTC
Updated: October 3, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.2%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
3.19 ≤ v < 6.1.1893.19 ≤ v < 6.12.1113.19 ≤ v < 6.18.533.19 ≤ v < 6.6.1583.19 ≤ v < 7.23.19c39e3d5fc9dd3e16c6f59dd94d827540040de66d
Vendor states this is fixed in 3303398cc2aa255ba251650a30024e11d48ea6c3 (fixed)
Vendor states this is fixed in 3b8b2e58b078cd30e121401535541bb8a6d57133 (fixed)
Vendor states this is fixed in 5d7637f4d050d105177217e64b869f56f9825060 (fixed)
Vendor states this is fixed in 6df6b1f2c49678211f65647c300bc51dda02893b (fixed)
Vendor states this is fixed in e03fd646adad7f97fa4429ec5f38cee9bde5276e (fixed)
Vendor states this is fixed in 3.19 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Source: cverecord
https://git.kernel.org/stable/c/3b8b2e58b078cd30e121401535541bb8a6d57133
Source: cverecord
https://git.kernel.org/stable/c/3303398cc2aa255ba251650a30024e11d48ea6c3
Source: cverecord
https://git.kernel.org/stable/c/6df6b1f2c49678211f65647c300bc51dda02893b
Source: cverecord
https://git.kernel.org/stable/c/e03fd646adad7f97fa4429ec5f38cee9bde5276e
Source: cverecord
https://git.kernel.org/stable/c/5d7637f4d050d105177217e64b869f56f9825060

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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