Hi Rasmus,
I have trouble booting my test machine with this patch in -mm:
commit bb2e066c6943e62e9650bb129f416dacf138f8b1
Author: Rasmus Villemoes <li...@rasmusvillemoes.dk>
Date: Wed Jan 14 01:00:44 2015 +0000
lib/vsprintf.c: don't try to fix pointer wrap-around
Actual kernel buffers can't wrap into the user address space. If someone
manages to pass a buf/size combination that wraps, it is most likely due
to a bug in the caller. Instead of trying to fix it by using a smaller
part of the buffer, bail out.
Signed-off-by: Rasmus Villemoes <li...@rasmusvillemoes.dk>
Cc: Jiri Kosina <jkos...@suse.cz>
Cc: Randy Dunlap <rdun...@infradead.org>
Signed-off-by: Andrew Morton <a...@linux-foundation.org>
After I get "Loading bzImage-new... ok" from the bootloader, the
serial console remains quiet.
A WARN_ON_ONCE() inside vsnprintf() looks like it would deadlock
instantly when triggering this overflow from printk(), no?
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