Linux kernel: null pointer crash in owl_emac_netdev_ops with NET_SHAPER
CVE-2026-99198 Published on October 28, 2026
net: ethernet: actions: Move setting of netops to fix crash
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: actions: Move setting of netops to fix crash
owl_emac_probe() calls owl_emac_phy_init(), which connects the PHY,
before netdev->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").
Products Associated with CVE-2026-99198
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Affected Versions
Linux:- Version ded86da4bbb78cad74cecc368fee3ae3a296e2ca and below d2eca3a54f415081711cd102d0db733de5abf170 is affected.
- Version ded86da4bbb78cad74cecc368fee3ae3a296e2ca and below c2c4824319850c87e77d26aeb8f860bc310a64d7 is affected.
- Version 7.2 is affected.
- Before 7.2 is unaffected.
- Version 7.2.13, <= 7.2.* is unaffected.
- Version 7.3, <= * is unaffected.