CVE-2024-42116 Information

Description

In the Linux kernel the following vulnerability has been resolved:

igc: fix a log entry using uninitialized netdev

During successful probe igc logs this:

[ 5.133667] igc 0000:01:00.0 (unnamed net_device) (uninitialized): PHC added ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The reason is that igc_ptp_init() is called very early even before register_netdev() has been called. So the netdev_info() call works on a partially uninitialized netdev.

Fix this by calling igc_ptp_init() after register_netdev() right after the media autosense check just as in igb. Add a comment just as in igb.

Now the log message is fine:

[ 5.200987] igc 0000:01:00.0 eth0: PHC added

Reference

https://git.kernel.org/stable/c/96839f3f588236593de36465f142b0126267f8b6 https://git.kernel.org/stable/c/98c8958980e829f023a490b9a9816ca1fe2f8b79 https://git.kernel.org/stable/c/991f036cabc3d13e886a37faeea1b6800181fdda https://git.kernel.org/stable/c/d478ec838cf2b1e1051a8709cfc744fe1c03110f https://git.kernel.org/stable/c/86167183a17e03ec77198897975e9fdfbd53cb0b