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(parent: 41f079a) | patch
net/tun: fix ioctl() based info leaks
authorMathias Krause <minipli@googlemail.com>
Sun, 29 Jul 2012 19:45:14 +0000 (19:45 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Aug 2012 15:27:53 +0000 (08:27 -0700)
commit4e98953723643ac9db9191381f52973a8f113902
tree50e1d8b4a84cadf2f98d7edda6d1882b9d58a71ftree | snapshot
parent41f079a0e1089bf0ed2b795cc427bf40b72efe0ecommit | diff
net/tun: fix ioctl() based info leaks

[ Upstream commits a117dacde0288f3ec60b6e5bcedae8fa37ee0dfc
  and 8bbb181308bc348e02bfdbebdedd4e4ec9d452ce ]

The tun module leaks up to 36 bytes of memory by not fully initializing
a structure located on the stack that gets copied to user memory by the
TUNGETIFF and SIOCGIFHWADDR ioctl()s.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/tun.c diff | blob | history
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