CVE-2022-49962

MEDIUM EPSS 7.7%
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: xhci: Fix null pointer dereference in remove if xHC has only one roothub The remove path in xhci platform driver tries to remove and put both main and shared hcds even if only a main hcd exists (one roothub) This causes a null pointer dereference in reboot for those controllers. Check that the shared_hcd exists before trying to remove it.

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
7.7% 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/4a593a62a9e3a25ab4bc37f612e4edec144f7f43
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4a593a62a9e3a25ab4bc37f612e4edec144f7f43
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7081b2f34ff291ada012bd6abacaf7d51c4cf73f
    Patch