lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 22 Mar 2020 13:43:56 -0700 From: Jakub Kicinski <kuba@...nel.org> To: Michal Kubecek <mkubecek@...e.cz> Cc: "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>, linux-kernel@...r.kernel.org Subject: Re: [PATCH net] ethtool: fix reference leak in some *_SET handlers On Sun, 22 Mar 2020 21:15:51 +0100 (CET) Michal Kubecek wrote: > Andrew noticed that some handlers for *_SET commands leak a netdev > reference if required ethtool_ops callbacks do not exist. A simple > reproducer would be e.g. > > ip link add veth1 type veth peer name veth2 > ethtool -s veth1 wol g > ip link del veth1 > > Make sure dev_put() is called when ethtool_ops check fails. Fixes: e54d04e3afea ("ethtool: set message mask with DEBUG_SET request") Fixes: a53f3d41e4d3 ("ethtool: set link settings with LINKINFO_SET request") Fixes: bfbcfe2032e7 ("ethtool: set link modes related data with LINKMODES_SET request") Fixes: 8d425b19b305 ("ethtool: set wake-on-lan settings with WOL_SET request") > Reported-by: Andrew Lunn <andrew@...n.ch> > Signed-off-by: Michal Kubecek <mkubecek@...e.cz> Reviewed-by: Jakub Kicinski <kuba@...nel.org>
Powered by blists - more mailing lists