netdev - Re: [PATCH net v2] net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need

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Message-Id: 
 <175680480651.206615.13443256148780571715.git-patchwork-notify@kernel.org>
Date: Tue, 02 Sep 2025 09:20:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Liu Jian <liujian56@...wei.com>
Cc: alibuda@...ux.alibaba.com, dust.li@...ux.alibaba.com,
 sidraya@...ux.ibm.com, wenjia@...ux.ibm.com, mjambigi@...ux.ibm.com,
 tonylu@...ux.alibaba.com, guwen@...ux.alibaba.com, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
 guangguan.wang@...ux.alibaba.com, linux-rdma@...r.kernel.org,
 linux-s390@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net v2] net/smc: fix one NULL pointer dereference in
 smc_ib_is_sg_need_sync()

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Thu, 28 Aug 2025 20:41:17 +0800 you wrote:
> BUG: kernel NULL pointer dereference, address: 00000000000002ec
> PGD 0 P4D 0
> Oops: Oops: 0000 [#1] SMP PTI
> CPU: 28 UID: 0 PID: 343 Comm: kworker/28:1 Kdump: loaded Tainted: G        OE       6.17.0-rc2+ #9 NONE
> Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
> Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
> Workqueue: smc_hs_wq smc_listen_work [smc]
> RIP: 0010:smc_ib_is_sg_need_sync+0x9e/0xd0 [smc]
> ...
> Call Trace:
>  <TASK>
>  smcr_buf_map_link+0x211/0x2a0 [smc]
>  __smc_buf_create+0x522/0x970 [smc]
>  smc_buf_create+0x3a/0x110 [smc]
>  smc_find_rdma_v2_device_serv+0x18f/0x240 [smc]
>  ? smc_vlan_by_tcpsk+0x7e/0xe0 [smc]
>  smc_listen_find_device+0x1dd/0x2b0 [smc]
>  smc_listen_work+0x30f/0x580 [smc]
>  process_one_work+0x18c/0x340
>  worker_thread+0x242/0x360
>  kthread+0xe7/0x220
>  ret_from_fork+0x13a/0x160
>  ret_from_fork_asm+0x1a/0x30
>  </TASK>
> 
> [...]

Here is the summary with links:
  - [net,v2] net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()
    https://git.kernel.org/netdev/net/c/ba1e9421cf1a

You are awesome, thank you!
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