linux-kernel - Re: [PATCH net V4] mptcp: pm: Fix uaf in __timer_delete

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: 
 <172609683476.1105624.7683534378726526616.git-patchwork-notify@kernel.org>
Date: Wed, 11 Sep 2024 23:20:34 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Edward Adam Davis <eadavis@...com>
Cc: davem@...emloft.net, edumazet@...gle.com, geliang@...nel.org,
 kuba@...nel.org, linux-kernel@...r.kernel.org, martineau@...nel.org,
 matttbe@...nel.org, mptcp@...ts.linux.dev, netdev@...r.kernel.org,
 pabeni@...hat.com, syzbot+f3a31fb909db9b2a5c4d@...kaller.appspotmail.com,
 syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH net V4] mptcp: pm: Fix uaf in __timer_delete_sync

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Tue, 10 Sep 2024 17:58:56 +0800 you wrote:
> There are two paths to access mptcp_pm_del_add_timer, result in a race
> condition:
> 
>      CPU1				CPU2
>      ====                               ====
>      net_rx_action
>      napi_poll                          netlink_sendmsg
>      __napi_poll                        netlink_unicast
>      process_backlog                    netlink_unicast_kernel
>      __netif_receive_skb                genl_rcv
>      __netif_receive_skb_one_core       netlink_rcv_skb
>      NF_HOOK                            genl_rcv_msg
>      ip_local_deliver_finish            genl_family_rcv_msg
>      ip_protocol_deliver_rcu            genl_family_rcv_msg_doit
>      tcp_v4_rcv                         mptcp_pm_nl_flush_addrs_doit
>      tcp_v4_do_rcv                      mptcp_nl_remove_addrs_list
>      tcp_rcv_established                mptcp_pm_remove_addrs_and_subflows
>      tcp_data_queue                     remove_anno_list_by_saddr
>      mptcp_incoming_options             mptcp_pm_del_add_timer
>      mptcp_pm_del_add_timer             kfree(entry)
> 
> [...]

Here is the summary with links:
  - [net,V4] mptcp: pm: Fix uaf in __timer_delete_sync
    https://git.kernel.org/netdev/net/c/b4cd80b03389

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html