HID: hidpp: fix potential UAF in hidpp_connect_event() (CVE-2026-93826) | HOL Guard CVE

High · CVSS 7.5CVE-2026-93826

HID: hidpp: fix potential UAF in hidpp_connect_event()

Answer in brief

CVE-2026-93826 records a High severity (CVSS 7.5) vulnerability in HID: hidpp: fix potential UAF in hidpp_connect_event(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.5
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3b8b2e58b078cd30e121401535541bb8a6d57133 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3303398cc2aa255ba251650a30024e11d48ea6c3 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6df6b1f2c49678211f65647c300bc51dda02893b \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	3b8b2e58b078cd30e121401535541bb8a6d57133, 3303398cc2aa255ba251650a30024e11d48ea6c3, 6df6b1f2c49678211f65647c300bc51dda02893b, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to 3b8b2e58b078cd30e121401535541bb8a6d57133 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source 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().

Quoted source text, attributed separately from HOL analysis.