linux-kernel - Re: [syzbot] BUG: scheduling while atomic: syz-executor/ADDR

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Date:   Thu, 1 Jul 2021 08:00:07 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     syzbot <syzbot+20191dc583eff8602d2d@...kaller.appspotmail.com>
Cc:     ardb@...nel.org, bp@...en8.de, dave.hansen@...el.com,
        davem@...emloft.net, hpa@...or.com, jpa@....mail.kapsi.fi,
        kan.liang@...ux.intel.com, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...hat.com,
        netdev@...r.kernel.org, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: [syzbot] BUG: scheduling while atomic: syz-executor/ADDR

On Wed, Jun 30, 2021 at 11:37:20AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    ff8744b5 Merge branch '100GbE' of git://git.kernel.org/pub..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=163cc5dc300000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7cf9abab1592f017
> dashboard link: https://syzkaller.appspot.com/bug?extid=20191dc583eff8602d2d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14a81190300000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1417f5bfd00000
> 
> The issue was bisected to:
> 
> commit 2481104fe98d5b016fdd95d649b1235f21e491ba
> Author: Ard Biesheuvel <ardb@...nel.org>
> Date:   Thu Dec 31 16:41:55 2020 +0000
> 
>     crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper

Hi Ard:

This looks like the same issue we discussed yesterday.

> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=164ee60c300000
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=154ee60c300000
> console output: https://syzkaller.appspot.com/x/log.txt?x=114ee60c300000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+20191dc583eff8602d2d@...kaller.appspotmail.com
> Fixes: 2481104fe98d ("crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper")

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt