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[S390] keyboard: integer underflow bug
authorDan Carpenter <error27@gmail.com>
Thu, 3 Mar 2011 16:56:06 +0000 (17:56 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Thu, 3 Mar 2011 16:56:14 +0000 (17:56 +0100)
commitb652277b09d3d030cb074cc6a98ba80b34244c03
tree3e83ec35774580a151fa7e59ec32f7c5786c689ctree | snapshot (tar.gz zip)
parent0c0db0355bc070b4c623622248d3f577642536b9commit | diff
[S390] keyboard: integer underflow bug

The "ct" variable should be an unsigned int.  Both struct kbdiacrs
->kb_cnt and struct kbd_data ->accent_table_size are unsigned ints.

Making it signed causes a problem in KBDIACRUC because the user could
set the signed bit and cause a buffer overflow.

Cc: <stable@kernel.org>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/char/keyboard.c diff | blob | blame | history