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(parent: ce9e76c) | patch
isdn: fix information leak
authorDan Carpenter <error27@gmail.com>
Wed, 4 Aug 2010 23:38:06 +0000 (23:38 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 5 Aug 2010 20:21:25 +0000 (13:21 -0700)
commit4b030d4288a569d6bdeca884d7f102d951f097f2
tree90c999a27f71fa258db88e2b859d31930d112ba3tree | snapshot
parentce9e76c8450fc248d3e1fc16ef05e6eb50c02fa5commit | diff
isdn: fix information leak

The main motivation of this patch changing strcpy() to strlcpy().
We strcpy() to copy a 48 byte buffers into a 49 byte buffers.  So at
best the last byte has leaked information, or maybe there is an
overflow?  Anyway, this patch closes the information leaks by zeroing
the memory and the calls to strlcpy() prevent overflows.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/sc/ioctl.c diff | blob | history
Domain: System / Kernel;