netdev - Re: [PATCH net-next v2] net: dst: fix missing initialization of rt

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Date:   Sat, 22 Apr 2023 03:30:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Maxime Bizon <mbizon@...ebox.fr>
Cc:     davem@...emloft.net, edumazet@...gle.com, tglx@...utronix.de,
        wangyang.guo@...el.com, netdev@...r.kernel.org,
        oliver.sang@...el.com, dsahern@...nel.org, leon@...nel.org
Subject: Re: [PATCH net-next v2] net: dst: fix missing initialization of
 rt_uncached

Hello:

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

On Thu, 20 Apr 2023 20:25:08 +0200 you wrote:
> xfrm_alloc_dst() followed by xfrm4_dst_destroy(), without a
> xfrm4_fill_dst() call in between, causes the following BUG:
> 
>  BUG: spinlock bad magic on CPU#0, fbxhostapd/732
>   lock: 0x890b7668, .magic: 890b7668, .owner: <none>/-1, .owner_cpu: 0
>  CPU: 0 PID: 732 Comm: fbxhostapd Not tainted 6.3.0-rc6-next-20230414-00613-ge8de66369925-dirty #9
>  Hardware name: Marvell Kirkwood (Flattened Device Tree)
>   unwind_backtrace from show_stack+0x10/0x14
>   show_stack from dump_stack_lvl+0x28/0x30
>   dump_stack_lvl from do_raw_spin_lock+0x20/0x80
>   do_raw_spin_lock from rt_del_uncached_list+0x30/0x64
>   rt_del_uncached_list from xfrm4_dst_destroy+0x3c/0xbc
>   xfrm4_dst_destroy from dst_destroy+0x5c/0xb0
>   dst_destroy from rcu_process_callbacks+0xc4/0xec
>   rcu_process_callbacks from __do_softirq+0xb4/0x22c
>   __do_softirq from call_with_stack+0x1c/0x24
>   call_with_stack from do_softirq+0x60/0x6c
>   do_softirq from __local_bh_enable_ip+0xa0/0xcc
> 
> [...]

Here is the summary with links:
  - [net-next,v2] net: dst: fix missing initialization of rt_uncached
    https://git.kernel.org/netdev/net-next/c/418a73074da9

You are awesome, thank you!
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