netdev - Re: [syzbot] KASAN: slab-out-of-bounds Read in smc_fback_error

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Message-ID: <ab5a6be2-a678-0149-b2cc-112c40c05b82@linux.alibaba.com>
Date:   Fri, 11 Feb 2022 17:08:36 +0800
From:   Wen Gu <guwen@...ux.alibaba.com>
To:     syzbot <syzbot+b425899ed22c6943e00b@...kaller.appspotmail.com>,
        davem@...emloft.net, kgraul@...ux.ibm.com, kuba@...nel.org,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in smc_fback_error_report



On 2022/2/11 2:36 am, syzbot wrote:


> BUG: KASAN: slab-out-of-bounds in smc_fback_error_report+0x96/0xa0 net/smc/af_smc.c:664
> Read of size 8 at addr ffff88801ca31aa8 by task swapper/0/0

Thanks for the report.

I am working on fixing this. It looks like smc_sock has been freed during the
call to smc_fback_error_report().


Thanks,
Wen Gu