Medium · CVSS 5.1CVE-2022-42895

Info Leak in l2cap_core in the Linux KernelCVE-2022-42895

Answer in brief

CVE-2022-42895 records a Medium severity (CVSS 5.1) vulnerability in Info Leak in l2cap_core in the Linux Kernel. The current sources do not mark it as known exploited. The current feed maps Linux/Linux Kernel (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (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 Nov 23, 2022Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.1
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 5.1. 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 Kernel (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linux Kernelgeneric	>=3.0.0 <=b1a2cd50c0357f243b7435a732b4e62ba3157a2e	Not reported
Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric	>=0 <V1.1	V1.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux Kernel, Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem.
Review the reported fix. Update Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem to V1.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Nov 23, 2022
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 14, 2026

Sources and claim methodology

Upstream source description

There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url

Quoted source text, attributed separately from HOL analysis.