diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2015-09-18 13:41:09 +0300 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-01-01 20:52:02 +0000 |
| commit | bae44deed2ab8704a5102919de7fac2a5193a046 (patch) | |
| tree | cc1e457e47332959c86cce70eab3ac434b04cd77 /include | |
| parent | dc66b10f907649ca66974942eb9d745fb9c81ae1 (diff) | |
macvtap: fix TUNSETSNDBUF values > 64k
commit 3ea79249e81e5ed051f2e6480cbde896d99046e8 upstream.
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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions