summaryrefslogtreecommitdiffstats
path: root/net/ax25/ax25_dev.c
diff options
context:
space:
mode:
authorMathias Krause <minipli@googlemail.com>2013-04-07 01:51:48 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-07 16:28:00 -0400
commitef3313e84acbf349caecae942ab3ab731471f1a1 (patch)
tree9b2fd9a7ce55f7e08fd9d51a5e8525d6bbb9e4c6 /net/ax25/ax25_dev.c
parent9b3e617f3df53822345a8573b6d358f6b9e5ed87 (diff)
downloadblackbird-op-linux-ef3313e84acbf349caecae942ab3ab731471f1a1.tar.gz
blackbird-op-linux-ef3313e84acbf349caecae942ab3ab731471f1a1.zip
ax25: fix info leak via msg_name in ax25_recvmsg()
When msg_namelen is non-zero the sockaddr info gets filled out, as requested, but the code fails to initialize the padding bytes of struct sockaddr_ax25 inserted by the compiler for alignment. Additionally the msg_namelen value is updated to sizeof(struct full_sockaddr_ax25) but is not always filled up to this size. Both issues lead to the fact that the code will leak uninitialized kernel stack bytes in net/socket.c. Fix both issues by initializing the memory with memset(0). Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ax25/ax25_dev.c')
0 files changed, 0 insertions, 0 deletions
OpenPOWER on IntegriCloud