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(parent: 789e0ed) | patch
net/tun: fix ioctl() based info leaks
authorMathias Krause <minipli@googlemail.com>
Sun, 29 Jul 2012 19:45:14 +0000 (19:45 +0000)
committerBen Hutchings <ben@decadent.org.uk>
Sun, 19 Aug 2012 17:15:26 +0000 (18:15 +0100)
commit9deaafcd3ee894ef714c44e0414e85db36e62641
tree431279852b92727e152930756165c1198859550btree | snapshot
parent789e0ed6c1132db40b4e6349113516ea0f700710commit | 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: Ben Hutchings <ben@decadent.org.uk>
drivers/net/tun.c diff | blob | history
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