Re: [patch] cpmac: use after free

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

 



Wed, Mar 03, 2010 at 09:46:10AM CET, error27@xxxxxxxxx wrote:
>The original code dereferenced "cpmac_mii" after calling 
>"mdiobus_free(cpmac_mii);"
>
>Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
>---
>Found by a static checker and not tested.  Sorry.  :/
>
>diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
>index b85c81f..9d48942 100644
>--- a/drivers/net/cpmac.c
>+++ b/drivers/net/cpmac.c
>@@ -1290,8 +1290,8 @@ void __devexit cpmac_exit(void)
> {
> 	platform_driver_unregister(&cpmac_driver);
> 	mdiobus_unregister(cpmac_mii);
>-	mdiobus_free(cpmac_mii);
> 	iounmap(cpmac_mii->priv);
>+	mdiobus_free(cpmac_mii);
> }
> 
> module_init(cpmac_init);

Looks good. Thanks.

Reviewed-by: Jiri Pirko <jpirko@xxxxxxxxxx>

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

[Index of Archives]     [Kernel Development]     [Kernel Announce]     [Kernel Newbies]     [Linux Networking Development]     [Share Photos]     [IDE]     [Security]     [Git]     [Netfilter]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Device Mapper]

  Powered by Linux