From: Pan Bian <bianpan2016@xxxxxxx> [ Upstream commit da046d5f895fca18d63b15ac8faebd5bf784e23a ] Release variable dst after logging dst->error to avoid possible use after free. Link: https://lore.kernel.org/r/1573022651-37171-1-git-send-email-bianpan2016@xxxxxxx Signed-off-by: Pan Bian <bianpan2016@xxxxxxx> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 880c63579ba88..adec03412506d 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_cm.c +++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c @@ -2052,9 +2052,9 @@ 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; } -- 2.25.1
