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author | Mathias Krause <minipli@googlemail.com> | 2013-04-07 01:51:57 +0000 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-01 08:56:39 -0700 |
commit | 6ccd06ead508da8351bae3aab57a2efba954cb2d (patch) | |
tree | 250ed54f932067ee585817c7a527b0d17e9079ea /fs/ncpfs/Makefile | |
parent | af9659917d0547ebb4233635d2dc496d29fd5d7c (diff) | |
download | kernel_samsung_smdk4412-6ccd06ead508da8351bae3aab57a2efba954cb2d.zip kernel_samsung_smdk4412-6ccd06ead508da8351bae3aab57a2efba954cb2d.tar.gz kernel_samsung_smdk4412-6ccd06ead508da8351bae3aab57a2efba954cb2d.tar.bz2 |
netrom: fix info leak via msg_name in nr_recvmsg()
[ Upstream commits 3ce5efad47b62c57a4f5c54248347085a750ce0e and
c802d759623acbd6e1ee9fbdabae89159a513913 ]
In case msg_name is set 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. Also
the sax25_ndigis member does not get assigned, leaking four more
bytes.
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).
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ncpfs/Makefile')
0 files changed, 0 insertions, 0 deletions