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Thu, 10 Oct 2024 06:55:00 +0200 Message-ID: Date: Thu, 10 Oct 2024 15:24:53 +1030 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [btrfs?] general protection fault in getname_kernel (2) To: syzbot , clm@fb.com, dsterba@suse.com, eadavis@qq.com, fdmanana@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, wqu@suse.com References: <6707584b.050a0220.67064.0059.GAE@google.com> Content-Language: en-US From: Qu Wenruo Autocrypt: addr=quwenruo.btrfs@gmx.com; keydata= xsBNBFnVga8BCACyhFP3ExcTIuB73jDIBA/vSoYcTyysFQzPvez64TUSCv1SgXEByR7fju3o 8RfaWuHCnkkea5luuTZMqfgTXrun2dqNVYDNOV6RIVrc4YuG20yhC1epnV55fJCThqij0MRL 1NxPKXIlEdHvN0Kov3CtWA+R1iNN0RCeVun7rmOrrjBK573aWC5sgP7YsBOLK79H3tmUtz6b 9Imuj0ZyEsa76Xg9PX9Hn2myKj1hfWGS+5og9Va4hrwQC8ipjXik6NKR5GDV+hOZkktU81G5 gkQtGB9jOAYRs86QG/b7PtIlbd3+pppT0gaS+wvwMs8cuNG+Pu6KO1oC4jgdseFLu7NpABEB AAHNIlF1IFdlbnJ1byA8cXV3ZW5ydW8uYnRyZnNAZ214LmNvbT7CwJQEEwEIAD4CGwMFCwkI BwIGFQgJCgsCBBYCAwECHgECF4AWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00iVQUJDToH pgAKCRDCPZHzoSX+qNKACACkjDLzCvcFuDlgqCiS4ajHAo6twGra3uGgY2klo3S4JespWifr BLPPak74oOShqNZ8yWzB1Bkz1u93Ifx3c3H0r2vLWrImoP5eQdymVqMWmDAq+sV1Koyt8gXQ XPD2jQCrfR9nUuV1F3Z4Lgo+6I5LjuXBVEayFdz/VYK63+YLEAlSowCF72Lkz06TmaI0XMyj jgRNGM2MRgfxbprCcsgUypaDfmhY2nrhIzPUICURfp9t/65+/PLlV4nYs+DtSwPyNjkPX72+ LdyIdY+BqS8cZbPG5spCyJIlZonADojLDYQq4QnufARU51zyVjzTXMg5gAttDZwTH+8LbNI4 mm2YzsBNBFnVga8BCACqU+th4Esy/c8BnvliFAjAfpzhI1wH76FD1MJPmAhA3DnX5JDORcga CbPEwhLj1xlwTgpeT+QfDmGJ5B5BlrrQFZVE1fChEjiJvyiSAO4yQPkrPVYTI7Xj34FnscPj /IrRUUka68MlHxPtFnAHr25VIuOS41lmYKYNwPNLRz9Ik6DmeTG3WJO2BQRNvXA0pXrJH1fN GSsRb+pKEKHKtL1803x71zQxCwLh+zLP1iXHVM5j8gX9zqupigQR/Cel2XPS44zWcDW8r7B0 q1eW4Jrv0x19p4P923voqn+joIAostyNTUjCeSrUdKth9jcdlam9X2DziA/DHDFfS5eq4fEv ABEBAAHCwHwEGAEIACYCGwwWIQQt33LlpaVbqJ2qQuHCPZHzoSX+qAUCY00ibgUJDToHvwAK CRDCPZHzoSX+qK6vB/9yyZlsS+ijtsvwYDjGA2WhVhN07Xa5SBBvGCAycyGGzSMkOJcOtUUf tD+ADyrLbLuVSfRN1ke738UojphwkSFj4t9scG5A+U8GgOZtrlYOsY2+cG3R5vjoXUgXMP37 INfWh0KbJodf0G48xouesn08cbfUdlphSMXujCA8y5TcNyRuNv2q5Nizl8sKhUZzh4BascoK DChBuznBsucCTAGrwPgG4/ul6HnWE8DipMKvkV9ob1xJS2W4WJRPp6QdVrBWJ9cCdtpR6GbL iQi22uZXoSPv/0oUrGU+U5X4IvdnvT+8viPzszL5wXswJZfqfy8tmHM85yjObVdIG6AlnrrD In-Reply-To: <6707584b.050a0220.67064.0059.GAE@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:fZ/lA9ujWxCZTkY0+gLwwnLwdAHQkrFMs5mg4JvRid0sIHsCvsN dCXLvEg4bdhCwKWdEYIKIascA2UsmAnXWEPOESaUEU2VK4wpO8cLZ/5j2yCdZ3hXlG05dHQ fDAjovaG4NIbK27hl2ccTg8r+JuLwEIndCzOg66gf4hewz73RR9Hv/FEt4lhHink+vo8njY wnFXSE5Me2fdmVKIR9fDQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:gJZTiGUB0mE=;y7/47/b8ES6/Y1kzzsHZ/TVIXJO r3GCk9ZWFDiYnpQ3HV0JlwvOSPYo6HICoP/gqfuHX92f1QhoRfcPZHcDw0R90I6qgDC0rO39U FKxrsUsegcbgn41u+9IsQsiWg68jQwc6X4/QZJYo8hqQNfFxZxsLSGskNFfgEuLewEGXhCOxy 8gRdTz+FYCaLkylWoWdAkTRf5ceafKuOtfMirhMXRe0FJNX3oX2NV/7mCdTMY7pzZ8gEFXfek PFwpbz7t5cvSYAC6VmeNSyviEqYeZwOhJiTQQgV9UofFqPJodc5kT2AHzvFF7eeE7zKJSQXOy LbURN4xVSWq0ytunTZascSJvMTjeOwql+sZBjIvD8+rdzynwsH1KKYKtbtFO1oyuvlCvo6O47 v2UG6o68itf4mudQl+2fGZbwhc12hPIGoXUdLQG+GznigiXcS/lflf9BgOBXI33Brpjt3OFqD ZWXogJx9H5Y+zDjaL9/SE3ivOwebvn8ojoLZ4kSJOYwvG1XqSYPGo8AzboPnVURQMqiAFbCof G/PlLz/Cz8PVPd6rHgLY6s+IC98XTRfjiTy0JNOsT7TuLD4rOnpg8YQSJNJvvyQWmXRZFq1GW UnKXUiIco39GNy/fql59Sg0I8g7CYT1fJaS1mhTp40b5wLSV8PR6009vAPJp81UkpkDsrfdmh dwSrmBCki7JuHSRah1LT+dlLpKa4SxIZKH1aJHeZERIuIs8wbSPpMaU3o2h703EHvyjcL+iPE SOhDgWb0RclietxomcGGGp1uotX0L6/gnVYvxiB2ljUGXTgmS5M79LsnhYgcq8Z57VG/lqOgY NVGjwH680TX6KpfTBfGDgRleCRIit0KilIRN64UhnY9Gk= #syz test: https://github.com/adam900710/linux.git subpage_read =E5=9C=A8 2024/10/10 15:00, syzbot =E5=86=99=E9=81=93: > syzbot has bisected this issue to: > > commit b4b3fb6c00f37a9da91022adcd83555bc339e044 > Author: Qu Wenruo > Date: Tue Sep 24 04:57:07 2024 +0000 > > btrfs: canonicalize the device path before adding it > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D15744f079= 80000 > start commit: 33ce24234fca Add linux-next specific files for 20241008 > git tree: linux-next > final oops: https://syzkaller.appspot.com/x/report.txt?x=3D17744f079= 80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=3D13744f079800= 00 > kernel config: https://syzkaller.appspot.com/x/.config?x=3D4750ca93740b= 938d > dashboard link: https://syzkaller.appspot.com/bug?extid=3Dcee29f5a48caf1= 0cd475 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D160ce32798= 0000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D15ea77079800= 00 > > Reported-by: syzbot+cee29f5a48caf10cd475@syzkaller.appspotmail.com > Fixes: b4b3fb6c00f3 ("btrfs: canonicalize the device path before adding = it") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisec= tion >