| author | Joe Perches <joe@perches.com> | |
| Wed, 14 Oct 2015 08:09:40 +0000 (01:09 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Tue, 27 Oct 2015 00:45:55 +0000 (09:45 +0900) | ||
| commit | 8c7a0e4993937c47b7584ce98e67dede323f29f6 | |
| tree | 6a1956fbc0673c409fc5e5ed30880290cf762c74 | tree | snapshot (tar.xz tar.gz zip) |
| parent | 321e117944dd09975ec42bd3da57894fe38d893a | commit | diff |
ethtool: Use kcalloc instead of kmalloc for ethtool_get_strings
[ Upstream commit 077cb37fcf6f00a45f375161200b5ee0cd4e937b ]
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 077cb37fcf6f00a45f375161200b5ee0cd4e937b ]
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| net/core/ethtool.c | diff | blob | history |