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isdn/gigaset: fix zero size border case in debug dump
authorTilman Schmidt <tilman@imap.cc>
Mon, 21 Jan 2013 11:57:21 +0000 (11:57 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 14 Feb 2013 18:49:04 +0000 (10:49 -0800)
commit3a2593d54499ec5d2ac5682503ae1973bfcd3bcb
tree681e4735af1c20ebac6caf2cf1d55733fca3fcbctree | snapshot
parent37c1a8504945755e6e0f39449023e250eb2c2618commit | diff
isdn/gigaset: fix zero size border case in debug dump

[ Upstream commit d721a1752ba544df8d7d36959038b26bc92bdf80 ]

If subtracting 12 from l leaves zero we'd do a zero size allocation,
leading to an oops later when we try to set the NUL terminator.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/isdn/gigaset/capi.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git