Live › vulnerability › CVE-2026-99193
Go to dashboardIn the Linux kernel's TI ICSSM PRU Ethernet driver, netdev operations are assigned after the PHY is attached, so probing dereferences a NULL pointer when CONFIG_NET_SHAPER is enabled. The impact described is a kernel crash (denial of service) during driver probe, with no code execution or data exposure stated.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-28 11:32 UTC. All times on this page are UTC.
Systems running a Linux kernel with CONFIG_NET_SHAPER enabled that use the TI ICSSM PRU Ethernet driver, typically embedded TI industrial or automation boards. Desktop, server and cloud systems without this driver are not affected, and teams without TI PRU hardware can skip it.
No product ranges from the sources yet.
CONFIG_NET_SHAPER=y and includes the TI icssm-prueth driver (grep CONFIG_NET_SHAPER /boot/config-$(uname -r))icssm-prueth driver (PRU-ICSS Ethernet on TI AM335x/AM57xx/AM65x class SoCs), for example with lsmod | grep pruethuname -rndev->netdev_ops assignment before of_phy_get_and_connect() in icssm_prueth_netdev_init() (version unknown from the sources)CONFIG_NET_SHAPER or avoid loading the icssm-prueth driver where it is not neededEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
In the Linux kernel, the following vulnerability has been resolved:
net: ti: icssm-prueth: Move setting of netops to fix crash
icssm_prueth_netdev_init() calls of_phy_get_and_connect() before ndev->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").
This page as .md · .json · in your agent: get_signal("CVE-2026-99193")
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