Description
In the Linux kernel, the following vulnerability has been resolved: net: hisilicon: hisi_femac: Move setting of netops to fix crash hisi_femac_drv_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. phy_link_topo_add_phy from phy_attach_direct+0xec/0x37c of_phy_get_and_connect from hisi_femac_drv_probe+0x1f4/0x558 Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Assign netdev_ops before the PHY attach, as was done for emac in commit 7c9f391ec89c ("net: emac: move setting of netops to fix crash").
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ded86da4bbb78cad74cecc368fee3ae3a296e2ca to < 06ef5b084b150c538bc84148e5d710eee012413caffectedded86da4bbb78cad74cecc368fee3ae3a296e2ca to < 444889dfa27b54b39026e962464b1f8f9093e1eaaffected
Linux Linux
Default version status: affected
7.2affected0 to < 7.2unaffected7.2.13 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected