linux/net/core/ethtool.c
Joe Perches d1a84d87c9 ethtool: Use kcalloc instead of kmalloc for ethtool_get_strings
commit 077cb37fcf upstream.

It seems that kernel memory can leak into userspace by a
kmalloc, ethtool_get_strings, then copy_to_user sequence.

Avoid this by using kcalloc to zero fill the copied buffer.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
2015-10-28 10:33:20 +00:00

1871 lines
45 KiB