Hello: This patch was applied to netdev/net.git (master) by Jakub Kicinski <kuba@xxxxxxxxxx>: On Thu, 17 Mar 2022 15:09:53 -0700 you wrote: > From: Yonglong Li <liyonglong@xxxxxxxxxxxxxxx> > > Got crash when doing pressure test of mptcp: > > =========================================================================== > dst_release: dst:ffffa06ce6e5c058 refcnt:-1 > kernel tried to execute NX-protected page - exploit attempt? (uid: 0) > BUG: unable to handle kernel paging request at ffffa06ce6e5c058 > PGD 190a01067 P4D 190a01067 PUD 43fffb067 PMD 22e403063 PTE 8000000226e5c063 > Oops: 0011 [#1] SMP PTI > CPU: 7 PID: 7823 Comm: kworker/7:0 Kdump: loaded Tainted: G E > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.2.1 04/01/2014 > Call Trace: > ? skb_release_head_state+0x68/0x100 > ? skb_release_all+0xe/0x30 > ? kfree_skb+0x32/0xa0 > ? mptcp_sendmsg_frag+0x57e/0x750 > ? __mptcp_retrans+0x21b/0x3c0 > ? __switch_to_asm+0x35/0x70 > ? mptcp_worker+0x25e/0x320 > ? process_one_work+0x1a7/0x360 > ? worker_thread+0x30/0x390 > ? create_worker+0x1a0/0x1a0 > ? kthread+0x112/0x130 > ? kthread_flush_work_fn+0x10/0x10 > ? ret_from_fork+0x35/0x40 > =========================================================================== > > [...] Here is the summary with links: - [net] mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb https://git.kernel.org/netdev/net/c/3ef3905aa3b5 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html