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RDMA/cxgb3: Fix stack info leak in iwch_create_cq()

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The "uresp.reserved" field isn't initialized on this path so it could
leak uninitialized stack information to the user.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Dan Carpenter
2013-07-29 22:19:14 +03:00
committed by Roland Dreier
parent 3b2f64d00c
commit 246fcdbc9d
1 changed files with 1 additions and 0 deletions
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drivers/infiniband/hw/cxgb3/iwch_provider.c
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@@ -226,6 +226,7 @@ static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int ve
mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) * mm->len = PAGE_ALIGN(((1UL << uresp.size_log2) + 1) *
sizeof(struct t3_cqe)); sizeof(struct t3_cqe));
uresp.memsize = mm->len; uresp.memsize = mm->len;
uresp.reserved = 0;
resplen = sizeof uresp; resplen = sizeof uresp;
} }
if (ib_copy_to_udata(udata, &uresp, resplen)) { if (ib_copy_to_udata(udata, &uresp, resplen)) {