linux-kernel - Re: [PATCH] RDMA/core: Fix null-ptr-deref in ib_core

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Message-Id: <166668346207.75287.12802762328335692637.b4-ty@kernel.org>
Date:   Tue, 25 Oct 2022 10:37:42 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     linux-kernel@...r.kernel.org,
        Chen Zhongjin <chenzhongjin@...wei.com>,
        linux-rdma@...r.kernel.org
Cc:     wsa+renesas@...g-engineering.com, dledford@...hat.com,
        matanb@...lanox.com, avihaih@...dia.com,
        penguin-kernel@...ove.SAKURA.ne.jp, jgg@...pe.ca, raeds@...dia.com
Subject: Re: [PATCH] RDMA/core: Fix null-ptr-deref in ib_core_cleanup()

On Tue, 25 Oct 2022 10:41:46 +0800, Chen Zhongjin wrote:
> KASAN reported a null-ptr-deref error:
> 
> KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]
> CPU: 1 PID: 379
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
> RIP: 0010:destroy_workqueue+0x2f/0x740
> RSP: 0018:ffff888016137df8 EFLAGS: 00000202
> ...
> Call Trace:
>  <TASK>
>  ib_core_cleanup+0xa/0xa1 [ib_core]
>  __do_sys_delete_module.constprop.0+0x34f/0x5b0
>  do_syscall_64+0x3a/0x90
>  entry_SYSCALL_64_after_hwframe+0x63/0xcd
> RIP: 0033:0x7fa1a0d221b7
> ...
>  </TASK>
> 
> [...]

Applied, thanks!

[1/1] RDMA/core: Fix null-ptr-deref in ib_core_cleanup()
      https://git.kernel.org/rdma/rdma/c/ad9394a3da3399

Best regards,
-- 
Leon Romanovsky <leon@...nel.org>