CVE-2026-99197 net: mv643xx: move setting of netops to fix crash
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-99197?
CVE-2026-99197 is a vulnerability in Linux, published on 28 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: mv643xx: move setting of netops to fix crash
mv643xx_eth_probe() connects the PHY before dev->netdev_ops is assigned. phy_attach_direct() -> phy_link_topo_add_phy() reads dev->netdev_ops through netdev_need_ops_lock() since the commit in question, so probing crashes with a NULL pointer dereference when CONFIG_NET_SHAPER is enabled.
Assign netdev_ops before the PHY attach, as was done for emac in commit 7c9f391ec89c ("net: emac: move setting of netops to fix crash").
Which versions are affected by CVE-2026-99197?
How do I fix CVE-2026-99197?
Upgrade to a fixed version.
Is CVE-2026-99197 being exploited?
There is no known exploitation of CVE-2026-99197 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-99197, GHSA-xp2p-g3gh-w84x, UBUNTU-CVE-2026-99197.