tree 132cc06300eee66d5e29905a652e79bf585416f6
parent 5e9965c15ba88319500284e590733f4a4629a288
author Jesper Juhl <jj@chaosbits.net> 1342957040 +0000
committer David S. Miller <davem@davemloft.net> 1343004649 -0700

net: Fix references to out-of-scope variables in put_cmsg_compat()

In net/compat.c::put_cmsg_compat() we may assign 'data' the address of
either the 'ctv' or 'cts' local variables inside the 'if
(!COMPAT_USE_64BIT_TIME)' branch.

Those variables go out of scope at the end of the 'if' statement, so
when we use 'data' further down in 'copy_to_user(CMSG_COMPAT_DATA(cm),
data, cmlen - sizeof(struct compat_cmsghdr))' there's no telling what
it may be refering to - not good.

Fix the problem by simply giving 'ctv' and 'cts' function scope.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>