re(4) use-after-free

From: Shawn Webb <lattera_at_gmail.com>
Date: Tue, 9 Dec 2014 11:36:38 -0500
Hey FreeBSD Peeps,

I just got a new laptop (Lenovo Y50-70) that has a Realtek RTL8111/8168B
NIC in it. When running `dhclient re0`, I get a message on the console from
the kernel:

Memory modified after free 0xfffff8001bd85800(2048) val=ffffffff _at_
0xfffff8001bd85800

re0 fails to grab an IP via DHCP. And if I set it statically, I get 100%
packet drops. Nothing comes in and nothing goes out.

Thanks,

Shawn
Received on Tue Dec 09 2014 - 15:36:39 UTC

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