CVE-2026-72448: octeontx2-pf: Fix leak of SQ timestamp buffer on teardown
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-pf: Fix leak of SQ timestamp buffer on teardown
The send-queue timestamp ring is allocated with qmemalloc() when timestamping is used, but otx2freesqres() never freed sq->timestamps, leaking that memory across ifdown and device removal. Add the missing qmemfree() alongside the other SQ companion buffers.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Patch octeontx2-pf: Fix leak of SQ timestamp buffer on teardown
Event History
Frequently Asked Questions
What is the severity of CVE-2026-72448?
CVE-2026-72448 has a severity rating of 9, indicating critical risk.
How do I fix CVE-2026-72448?
To fix CVE-2026-72448, ensure that your Linux kernel is updated to the latest version that includes the fix.
What components are affected by CVE-2026-72448?
CVE-2026-72448 affects the send-queue timestamp buffer management in the Linux kernel.
What type of vulnerability is CVE-2026-72448?
CVE-2026-72448 is a memory leak vulnerability that occurs during the teardown process in the Linux kernel.
Can CVE-2026-72448 impact system performance?
Yes, if exploited, CVE-2026-72448 can lead to increased memory usage, potentially affecting system performance.