Re: [PATCH v2] libibverb/examples: Protect against memory corruption

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 2018/4/12 3:06, Yuval Shaia wrote:
Make sure num_qp is less than MAX_QP so we will not overrun my_dest
array.

Signed-off-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
Reviewed-by: Zhu Yanjun <yanjun.zhu@xxxxxxxxxx>
---
v1 -> v2:
	* Accept comment from Ruhl, Michael J
---
  libibverbs/examples/srq_pingpong.c | 6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/libibverbs/examples/srq_pingpong.c b/libibverbs/examples/srq_pingpong.c
index c289b463..014d114f 100644
--- a/libibverbs/examples/srq_pingpong.c
+++ b/libibverbs/examples/srq_pingpong.c
@@ -759,6 +759,12 @@ int main(int argc, char *argv[])
  		return 1;
  	}
+ if (num_qp >= MAX_QP) {
+		fprintf(stderr, "num_qp %d must be less than %d\n", num_qp,
+			MAX_QP - 1);
+		return 1;
+	}
+
  	num_wc = num_qp + rx_depth;
  	wc     = alloca(num_wc * sizeof *wc);

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux