| Message ID | 20210605023148.4124956-1-yangyingliang@huawei.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [net-next,v2] net: mscc: ocelot: check return value after calling platform_get_resource() | expand |
On Sat, Jun 05, 2021 at 10:31:48AM +0800, Yang Yingliang wrote: > It will cause null-ptr-deref if platform_get_resource() returns NULL, > we need check the return value. > > Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> > --- Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Hello: This patch was applied to netdev/net-next.git (refs/heads/master): On Sat, 5 Jun 2021 10:31:48 +0800 you wrote: > It will cause null-ptr-deref if platform_get_resource() returns NULL, > we need check the return value. > > Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> > --- > v2: > add missing goto err_alloc_felix > > [...] Here is the summary with links: - [net-next,v2] net: mscc: ocelot: check return value after calling platform_get_resource() https://git.kernel.org/netdev/net-next/c/f1fe19c2cb3f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c index 84f93a874d50..deae923c8b7a 100644 --- a/drivers/net/dsa/ocelot/seville_vsc9953.c +++ b/drivers/net/dsa/ocelot/seville_vsc9953.c @@ -1206,6 +1206,11 @@ static int seville_probe(struct platform_device *pdev) felix->info = &seville_info_vsc9953; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + err = -EINVAL; + dev_err(&pdev->dev, "Invalid resource\n"); + goto err_alloc_felix; + } felix->switch_base = res->start; ds = kzalloc(sizeof(struct dsa_switch), GFP_KERNEL);
It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- v2: add missing goto err_alloc_felix --- drivers/net/dsa/ocelot/seville_vsc9953.c | 5 +++++ 1 file changed, 5 insertions(+)