diff options
| author | Roland Dreier <rolandd@cisco.com> | 2005-10-27 20:33:43 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2005-10-27 20:33:43 -0700 |
| commit | 089a1bedd84be16a4f49a319e7ccb4a128da5ce9 (patch) | |
| tree | d2bad46f16a76769b1f8d87aad369d50b4966cb6 | |
| parent | 3d155f8cd0d077938d271225d26ee52f8eb26082 (diff) | |
[IB] ib_umad: fix crash when freeing send buffers
The conversion of user_mad.c to the new MAD send API was slightly off:
in a few places, we used packet->msg instead of packet->msg->mad when
referring to the actual data buffer, which ended up corrupting the
underlying data structure and crashing when we free an invalid pointer.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
| -rw-r--r-- | drivers/infiniband/core/user_mad.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index fc5519a3de9..a48166a8e04 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -398,12 +398,12 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf, * transaction ID matches the agent being used to send the * MAD. */ - method = ((struct ib_mad_hdr *) packet->msg)->method; + method = ((struct ib_mad_hdr *) packet->msg->mad)->method; if (!(method & IB_MGMT_METHOD_RESP) && method != IB_MGMT_METHOD_TRAP_REPRESS && method != IB_MGMT_METHOD_SEND) { - tid = &((struct ib_mad_hdr *) packet->msg)->tid; + tid = &((struct ib_mad_hdr *) packet->msg->mad)->tid; *tid = cpu_to_be64(((u64) agent->hi_tid) << 32 | (be64_to_cpup(tid) & 0xffffffff)); } |