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Date: Mon, 24 Aug 2020 17:48:24 -0700 From: Yonghong Song <yhs@...com> To: syzbot <syzbot+f07cc9be8d1d226947ed@...kaller.appspotmail.com>, <andriin@...com>, <ast@...nel.org>, <bpf@...r.kernel.org>, <daniel@...earbox.net>, <jmorris@...ei.org>, <john.fastabend@...il.com>, <kafai@...com>, <kpsingh@...omium.org>, <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-security-module@...r.kernel.org>, <linux-unionfs@...r.kernel.org>, <miklos@...redi.hu>, <netdev@...r.kernel.org>, <omosnace@...hat.com>, <serge@...lyn.com>, <songliubraving@...com>, <syzkaller-bugs@...glegroups.com> Subject: Re: general protection fault in security_inode_getattr On 8/24/20 5:32 PM, syzbot wrote: > syzbot has bisected this issue to: > > commit 35697c12d7ffd31a56d3c9604066a166b75d0169 > Author: Yonghong Song <yhs@...com> > Date: Thu Jan 16 17:40:04 2020 +0000 > > selftests/bpf: Fix test_progs send_signal flakiness with nmi mode The above patch changed file: tools/testing/selftests/bpf/prog_tests/send_signal.c It is unlikely it caused the issue. > > bisection log: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_bisect.txt-3Fx-3D13032139900000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=Le6D_jfzkec28_qNhbUwMesaUeBGaKEG6RLN3ZCzE1s&e= > start commit: d012a719 Linux 5.9-rc2 > git tree: upstream > final oops: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_report.txt-3Fx-3D10832139900000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=VbLXb22TgxAtiPQTEq0t5r0WgNDiFwstWKnme0tWBLE&e= > console output: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_log.txt-3Fx-3D17032139900000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=yu72HnqjHzOTtJ5dyD7q0QW9sOwEO6pPHjeYTTutKdc&e= > kernel config: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_.config-3Fx-3D891ca5711a9f1650&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=6cylIRBZjHQmgkJQoofuLN2XSifb-13qrrj58PQpBYs&e= > dashboard link: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_bug-3Fextid-3Df07cc9be8d1d226947ed&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=siCrm2aO-fzR3Nym_zaPQQnmxMlJo0bRj87zgm7o5mY&e= > syz repro: https://urldefense.proofpoint.com/v2/url?u=https-3A__syzkaller.appspot.com_x_repro.syz-3Fx-3D104a650e900000&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=yNEvyRe2bO4AKgq2UuJc32katp4k4UGKwMUDEBlhM7E&e= > > Reported-by: syzbot+f07cc9be8d1d226947ed@...kaller.appspotmail.com > Fixes: 35697c12d7ff ("selftests/bpf: Fix test_progs send_signal flakiness with nmi mode") > > For information about bisection process see: https://urldefense.proofpoint.com/v2/url?u=https-3A__goo.gl_tpsmEJ-23bisection&d=DwIBaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=DA8e1B5r073vIqRrFz7MRA&m=854z77F3pbTpgGUCFUwM1OSEUj4NbiNIZsaad0Xg4qc&s=K4KdZK8rBgxDv4M9uwEndkCB4mCatTH-opwefN-0b-M&e= >
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