CVEvulnerability
CVE-2026-97434
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
dpaa2-switch: fix handling of NAPI on the remove path
All the NAPI instances for a DPSW device are attached to the first
switch port's net_device but shared by all ports. The NAPI instances get
disabled only once the last port goes down.
This causes an issue on the .remove() path where each port is
unregistered and freed one at a time, causing the NAPI instances to be
deleted even though they are not disabled.
In order to avoid this, split up the unregister_netdev() calls from the
free_netdev() so that we make sure all ports go down before we attempt
a deletion of NAPI instances. Also, make the netif_napi_del() explicit
as it is on the .probe() path.
References
- https://git.kernel.org/stable/c/569df157eb874cb3b50554d73b89f31599397b42 git.kernel.org
- https://git.kernel.org/stable/c/6518f87771c8833e587bd9881346fa759651c2ae git.kernel.org
- https://git.kernel.org/stable/c/bd16f46d0796109d241d6311a7577f9956467c96 git.kernel.org
- https://git.kernel.org/stable/c/c996faba71fc465ad12c6d177bd1a9ad974f9ee8 git.kernel.org
- https://git.kernel.org/stable/c/d39603e21087e9ef9cd125e5895cdc70b2eb154d git.kernel.org
- https://git.kernel.org/stable/c/e23d7c8c1d4ba435c457d7ffb2669175ec819b07 git.kernel.org