CVE-2022-49944

MEDIUM EPSS 7.2%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()" The recent commit 87d0e2f41b8c ("usb: typec: ucsi: add a common function ucsi_unregister_connectors()") introduced a regression that caused NULL dereference at reading the power supply sysfs. It's a stale sysfs entry that should have been removed but remains with NULL ops. The commit changed the error handling to skip the entries after a NULL con->wq, and this leaves the power device unreleased. For addressing the regression, the straight revert is applied here. Further code improvements can be done from the scratch again.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.19  –  <5.19.8
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f73aa2cf8bef4a39baa1591c3144ede4788826e
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3d4044c9e6d2e3f11f1f8b5e0ee8647d3eb1afad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f73aa2cf8bef4a39baa1591c3144ede4788826e
    Patch