Critical· 9.8official fix available
CVE-2022-49201
A race condition exists in the Linux kernel's ibmvnic driver. This flaw occurs when the system attempts to transmit data at the same time a reset is being performed, leading to memory access errors.
publishedFeb 26, 2025
last modifiedAug 4, 2026
sourcesNVD
severity · cvss
9.8
critical · how bad it is
exploitation · epss
<1%
39th 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
Users running the Linux kernel with the ibmvnic driver enabled.
02
Real-world impact
An attacker could trigger a system crash, resulting in a denial of service (DoS) by causing a kernel panic.
03
Why this severity
The critical score is due to the vulnerability's ability to cause a complete system crash (denial of service) via a NULL pointer dereference, which can be triggered remotely over a network.
04
What to do about it
official fix available
recommended steps
- 01Update the Linux kernel to the version containing the fix for the ibmvnic race condition.
NVD-referenced vendor advisory
05
Timeline
- Feb 26, 2025 · Feb 26, 2025PublishedDisclosed and added to the National Vulnerability Database.
- Aug 4, 2026 · 2d 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 →