Bug 2562744 (CVE-2026-99197) - CVE-2026-99197 kernel: net: mv643xx: move setting of netops to fix crash
Summary: CVE-2026-99197 kernel: net: mv643xx: move setting of netops to fix crash
Keywords:
Status: NEW
Alias: CVE-2026-99197
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-28 11:02 UTC by OSIDB Bzimport
Modified: 2026-10-28 12:03 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-10-28 11:02:08 UTC
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").


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