AZL-64211
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-64211.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-64211
- Upstream
- Published
- 2025-06-20T12:15:21Z
- Modified
- 2026-04-01T05:20:49.296631Z
- Summary
- CVE-2025-38083 affecting package kernel for versions less than 6.6.96.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netsched: prio: fix a race in priotune()
Gerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer fires at the wrong time.
The race is as follows:
CPU 0 CPU 1 | | [5]: lock root | [6]: rehash | [7]: qdisctreereduce_backlog() | This can be abused to underflow a parent's qlen.
Calling qdiscpurgequeue() instead of qdisctreeflush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
- References