AZL-103652
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-103652.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-103652
- Upstream
- Published
- 2026-09-24T17:17:18Z
- Modified
- 2026-09-25T14:16:24Z
- Summary
- CVE-2026-97411 affecting package kernel 6.6.157.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: ibm: emac: mal: fix potential system hang in mal_remove()
napi_disable() is not idempotent and calling it on an already-disabled or unenabled NAPI context will cause the kernel to spin indefinitely waiting for the NAPI_STATE_SCHED bit to clear.
In mal_remove(), napi_disable() is called unconditionally. If no MACs were registered, NAPI was never enabled. Also, if they were registered but subsequently unregistered, NAPI was already disabled in mal_unregister_commac(). In either case, calling napi_disable() causes the kernel to hang upon module removal.
Fix this by only calling napi_disable() in mal_remove() if the commac list is not empty (which implies NAPI is enabled).
- References