Critical· 9.8official fix available
CVE-2022-50373
A critical race condition in the Linux kernel's dlm module (CVE-2022-50373) could lead to memory corruption. The vulnerability was resolved by adding a reference count to prevent improper memory access.
publishedSep 17, 2025
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
29th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 3, 2026
An official fix is available, so this entry is kept for 30 days and then removed automatically.
01
Who is affected
Linux kernel users
02
Real-world impact
Potential memory corruption leading to system instability or security breaches.
03
Why this severity
CVSS 9.8 (critical): High risk of exploitation and severe impact on confidentiality, integrity, and availability.
04
What to do about it
official fix available
recommended steps
- 01Apply the kernel patch that adds a reference count between dlm_lowcomms_new_msg() and dlm_lowcomms_commit_msg() to prevent the race condition.
NVD-referenced vendor advisory
05
Timeline
- Sep 17, 2025 · Sep 17, 2025PublishedDisclosed and added to the National Vulnerability Database.
- Aug 4, 2026 · 1d agoAdvisory updatedThe NVD record was last revised.
- Aug 4, 2026 · 1d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.
06
How it’s attacked
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07
References & advisories
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →