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: Mon, 20 Jun 2022 08:56:49 -0700 From: Jakub Kicinski <kuba@...nel.org> To: jdmason@...zu.us Cc: patchwork-bot+netdevbpf@...nel.org, Wentao_Liang <Wentao_Liang_g@....com>, davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c On Sun, 19 Jun 2022 11:00:13 +0000 patchwork-bot+netdevbpf@...nel.org wrote: > Hello: > > This patch was applied to netdev/net.git (master) > by David S. Miller <davem@...emloft.net>: > > On Sun, 19 Jun 2022 22:14:54 +0800 you wrote: > > The pointer vdev points to a memory region adjacent to a net_device > > structure ndev, which is a field of hldev. At line 4740, the invocation > > to vxge_device_unregister unregisters device hldev, and it also releases > > the memory region pointed by vdev->bar0. At line 4743, the freed memory > > region is referenced (i.e., iounmap(vdev->bar0)), resulting in a > > use-after-free vulnerability. We can fix the bug by calling iounmap > > before vxge_device_unregister. > > > > [...] > > Here is the summary with links: > - drivers/net/ethernet/neterion/vxge: Fix a use-after-free bug in vxge-main.c > https://git.kernel.org/netdev/net/c/8fc74d18639a > > You are awesome, thank you! ðŸ˜ðŸ˜ðŸ˜ Jon, if you care about this driver staying upstream please send a correct fix (on top of this change since it's already merged).
Powered by blists - more mailing lists