lib/vsprintf.c: improve sanity check in vsnprintf()
authorRasmus Villemoes <linux@rasmusvillemoes.dk>
Thu, 12 Feb 2015 23:01:39 +0000 (15:01 -0800)
committerBen Hutchings <ben@decadent.org.uk>
Thu, 16 Mar 2017 02:18:51 +0000 (02:18 +0000)
commit 2aa2f9e21e4eb25c720b2e7d80f8929638f6ad73 upstream.

On 64 bit, size may very well be huge even if bit 31 happens to be 0.
Somehow it doesn't feel right that one can pass a 5 GiB buffer but not a
3 GiB one.  So cap at INT_MAX as was probably the intention all along.
This is also the made-up value passed by sprintf and vsprintf.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Willy Tarreau <w@1wt.eu>
lib/vsprintf.c

diff --cc lib/vsprintf.c
Simple merge