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| author | David S. Miller | 2010-09-28 05:24:54 +0200 |
|---|---|---|
| committer | David S. Miller | 2010-09-28 05:24:54 +0200 |
| commit | 01db403cf99f739f86903314a489fb420e0e254f (patch) | |
| tree | bf04fbfb3ed88d6cf7abeea1ab5209be36907882 /net/ipv4/tcp_input.c | |
| parent | net/9p: Mount only matching virtio channels (diff) | |
| download | kernel-qcow2-linux-01db403cf99f739f86903314a489fb420e0e254f.tar.gz kernel-qcow2-linux-01db403cf99f739f86903314a489fb420e0e254f.tar.xz kernel-qcow2-linux-01db403cf99f739f86903314a489fb420e0e254f.zip | |
tcp: Fix >4GB writes on 64-bit.
Fixes kernel bugzilla #16603
tcp_sendmsg() truncates iov_len to an 'int' which a 4GB write to write
zero bytes, for example.
There is also the problem higher up of how verify_iovec() works. It
wants to prevent the total length from looking like an error return
value.
However it does this using 'int', but syscalls return 'long' (and
thus signed 64-bit on 64-bit machines). So it could trigger
false-positives on 64-bit as written. So fix it to use 'long'.
Reported-by: Olaf Bonorden <bono@onlinehome.de>
Reported-by: Daniel Büse <dbuese@gmx.de>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_input.c')
0 files changed, 0 insertions, 0 deletions