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(parent: 1973650) | patch
net/tun: fix ioctl() based info leaks
authorMathias Krause <minipli@googlemail.com>
Sun, 29 Jul 2012 19:45:14 +0000 (19:45 +0000)
committerPaul Gortmaker <paul.gortmaker@windriver.com>
Mon, 10 Feb 2014 21:10:57 +0000 (16:10 -0500)
commitc1968274b39f8e5696baebcba04076678449628d
tree15a2e16647663cf3b8a6da1f0430b37effe0a71dtree | snapshot
parent197365095b482ed4f3ffef8d4534b4708b261137commit | diff
net/tun: fix ioctl() based info leaks

commit a117dacde0288f3ec60b6e5bcedae8fa37ee0dfc upstream.

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: Paul Gortmaker <paul.gortmaker@windriver.com>
drivers/net/tun.c diff | blob | history
wrapfs-2.6.34.y