Bug#637122: general: Realtek RTL8111 with r8169 module causes kernel panic on large packets
Package: general
Severity: normal
The kernel panics when it receives a packet on an interface running the r8169
module that is of sufficient size.
To reproduce, have another host on the interface with MTU of 9000 to send a
ICMP ping packet of size 9000, and then the driver will cause a panic. It seems
the crash depends somewhat on the MTU of the r8169 interface as well as
under some conditions there is no crash. I haven't had a chance to play around
with this much because my only machine to test this with is running our
file-server during business hours. Googling around seems to suggest that bugs
like this have existed before:
http://www.cvedetails.com/cve/CVE-2009-4537/
Is there any way to mitigate this problem? I can't exactly use my gigabit
network to the fullest when all the machines have 1.5k MTUs to prevent this
crash.
-- System Information:
Debian Release: 6.0.2
APT prefers stable
APT policy: (700, 'stable'), (600, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/6 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
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