linux-kernel - Re: [syzbot] [rdma?] INFO: trying to register non-static key in skb

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <0d515e17-5386-61ba-8278-500620969497@linux.dev>
Date:   Tue, 23 May 2023 12:10:26 +0800
From:   Guoqing Jiang <guoqing.jiang@...ux.dev>
To:     Zhu Yanjun <zyjzyj2000@...il.com>
Cc:     syzbot <syzbot+eba589d8f49c73d356da@...kaller.appspotmail.com>,
        jgg@...pe.ca, leon@...nel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [rdma?] INFO: trying to register non-static key in
 skb_dequeue (2)



On 5/23/23 12:02, Zhu Yanjun wrote:
> On Tue, May 23, 2023 at 11:47 AM Zhu Yanjun <zyjzyj2000@...il.com> wrote:
>> On Tue, May 23, 2023 at 10:26 AM Guoqing Jiang <guoqing.jiang@...ux.dev> wrote:
>>>
>>>
>>> On 5/23/23 10:13, syzbot wrote:
>>>> Hello,
>>>>
>>>> syzbot tried to test the proposed patch but the build/boot failed:
>>>>
>>>> failed to apply patch:
>>>> checking file drivers/infiniband/sw/rxe/rxe_qp.c
>>>> patch: **** unexpected end of file in patch
>> This is not the root cause. The fix is not good.
> This problem is about "INFO: trying to register non-static key. The
> code is fine but needs lockdep annotation, or maybe"

Which is caused by  "skb_queue_head_init(&qp->resp_pkts)" is not called
given rxe_qp_init_resp returns error, but the cleanup still trigger the 
chain.

rxe_qp_do_cleanup -> rxe_completer -> drain_resp_pkts -> 
skb_dequeue(&qp->resp_pkts)

But I might misunderstood it ...

Thanks,
Guoqing