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| author | Michael S. Tsirkin <mst@redhat.com> | 2015-09-18 10:41:09 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-21 05:44:39 (GMT) |
| commit | 3ea79249e81e5ed051f2e6480cbde896d99046e8 (patch) | |
| tree | 815fb31a10d3f01f8db8094a8a8efcd7077b8b35 /net/netlink/af_netlink.h | |
| parent | 83cf9a2521b0934a5f9d04082c9bb4f554fddcd4 (diff) | |
| download | linux-3ea79249e81e5ed051f2e6480cbde896d99046e8.tar.xz | |
macvtap: fix TUNSETSNDBUF values > 64k
Upon TUNSETSNDBUF, macvtap reads the requested sndbuf size into
a local variable u.
commit 39ec7de7092b ("macvtap: fix uninitialized access on
TUNSETIFF") changed its type to u16 (which is the right thing to
do for all other macvtap ioctls), breaking all values > 64k.
The value of TUNSETSNDBUF is actually a signed 32 bit integer, so
the right thing to do is to read it into an int.
Cc: David S. Miller <davem@davemloft.net>
Fixes: 39ec7de7092b ("macvtap: fix uninitialized access on TUNSETIFF")
Reported-by: Mark A. Peloquin
Bisected-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink/af_netlink.h')
0 files changed, 0 insertions, 0 deletions