CVE-2022-49089
Linux Kernel RDMavt Lock Desynchronization Buffer Overwrite
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.
INFO
Published Date :
Feb. 26, 2025, 7 a.m.
Last Modified :
Feb. 26, 2025, 7 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-49089.
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CVE-2022-49089 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49089 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0 Added Reference https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018 Added Reference https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0 Added Reference https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944 Added Reference https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666 Added Reference https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49089 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49089
weaknesses.