Vulnerability CVE-2024-42116
Published: 2024-07-30

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

 References:
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
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