CVE-2022-49089

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

26/02/2025

Last modified:

23/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition The documentation of the function rvt_error_qp says both r_lock and s_lock need to be held when calling that function. It also asserts using lockdep that both of those locks are held. However, the commit I referenced in Fixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no longer covered by r_lock. This results in the lockdep assertion failing and also possibly in a race condition.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

4.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.0.4 (including)	5.4.189 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.111 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.34 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.16.20 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.17 (including)	5.17.3 (excluding)
cpe:2.3:o:linux:linux_kernel:5.18:rc1::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49089

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools