* [PATCH] RDMA/i40iw: fix potential use after free
@ 2019-11-06 6:44 Pan Bian
2019-11-06 7:44 ` Leon Romanovsky
2019-11-14 15:53 ` Jason Gunthorpe
0 siblings, 2 replies; 3+ messages in thread
From: Pan Bian @ 2019-11-06 6:44 UTC (permalink / raw)
To: Faisal Latif, Shiraz Saleem, Doug Ledford, Jason Gunthorpe
Cc: linux-rdma, linux-kernel, Pan Bian
Release variable dst after logging dst->error to avoid possible use after
free.
Signed-off-by: Pan Bian <bianpan2016@163.com>
---
drivers/infiniband/hw/i40iw/i40iw_cm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c
index 2d6a378e8560..bb78d3280acc 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_cm.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -2079,9 +2079,9 @@ static int i40iw_addr_resolve_neigh_ipv6(struct i40iw_device *iwdev,
dst = i40iw_get_dst_ipv6(&src_addr, &dst_addr);
if (!dst || dst->error) {
if (dst) {
- dst_release(dst);
i40iw_pr_err("ip6_route_output returned dst->error = %d\n",
dst->error);
+ dst_release(dst);
}
return rc;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] RDMA/i40iw: fix potential use after free
2019-11-06 6:44 [PATCH] RDMA/i40iw: fix potential use after free Pan Bian
@ 2019-11-06 7:44 ` Leon Romanovsky
2019-11-14 15:53 ` Jason Gunthorpe
1 sibling, 0 replies; 3+ messages in thread
From: Leon Romanovsky @ 2019-11-06 7:44 UTC (permalink / raw)
To: Pan Bian
Cc: Faisal Latif, Shiraz Saleem, Doug Ledford, Jason Gunthorpe,
linux-rdma, linux-kernel
On Wed, Nov 06, 2019 at 02:44:11PM +0800, Pan Bian wrote:
> Release variable dst after logging dst->error to avoid possible use after
> free.
>
> Signed-off-by: Pan Bian <bianpan2016@163.com>
> ---
> drivers/infiniband/hw/i40iw/i40iw_cm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c
> index 2d6a378e8560..bb78d3280acc 100644
> --- a/drivers/infiniband/hw/i40iw/i40iw_cm.c
> +++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
> @@ -2079,9 +2079,9 @@ static int i40iw_addr_resolve_neigh_ipv6(struct i40iw_device *iwdev,
> dst = i40iw_get_dst_ipv6(&src_addr, &dst_addr);
> if (!dst || dst->error) {
> if (dst) {
> - dst_release(dst);
> i40iw_pr_err("ip6_route_output returned dst->error = %d\n",
> dst->error);
I suggest to remove those prints together with "if (dst)" check because
dst_release() already has such check.
Thanks
> + dst_release(dst);
> }
> return rc;
> }
> --
> 2.7.4
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] RDMA/i40iw: fix potential use after free
2019-11-06 6:44 [PATCH] RDMA/i40iw: fix potential use after free Pan Bian
2019-11-06 7:44 ` Leon Romanovsky
@ 2019-11-14 15:53 ` Jason Gunthorpe
1 sibling, 0 replies; 3+ messages in thread
From: Jason Gunthorpe @ 2019-11-14 15:53 UTC (permalink / raw)
To: Pan Bian
Cc: Faisal Latif, Shiraz Saleem, Doug Ledford, linux-rdma, linux-kernel
On Wed, Nov 06, 2019 at 02:44:11PM +0800, Pan Bian wrote:
> Release variable dst after logging dst->error to avoid possible use after
> free.
>
> Signed-off-by: Pan Bian <bianpan2016@163.com>
> ---
> drivers/infiniband/hw/i40iw/i40iw_cm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied to for-next, thanks
Jason
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-11-14 15:53 UTC | newest]
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2019-11-06 6:44 [PATCH] RDMA/i40iw: fix potential use after free Pan Bian
2019-11-06 7:44 ` Leon Romanovsky
2019-11-14 15:53 ` Jason Gunthorpe
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