Date: Thu, 8 Feb 2001 15:00:25 -0800 (PST) From: Luigi Rizzo <luigi@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/ed if_ed.c Message-ID: <200102082300.f18N0PJ33884@freefall.freebsd.org>
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luigi 2001/02/08 15:00:24 PST
Modified files: (Branch: RELENG_4)
sys/dev/ed if_ed.c
Log:
MFC: fix a serious bug in the ed driver when very short packets are
received (with bpf or bridging active). Some code was erroneously
assuming that the packet contained at least the ethernet header,
and as a result a negative length was later written into the mbuf
header, eventually resulting in random panics.
This bug has been reported for some time, but i was never able to
reproduce it locally because I had the code fixed in my sources
a couple of weeks ago, and just forgot to commit the fix.
Revision Changes Path
1.173.2.10 +12 -6 src/sys/dev/ed/if_ed.c
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