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Wed, 15 May 2024 16:15:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id X5OxNqrfRGYaFAAAD6G6ig (envelope-from ); Wed, 15 May 2024 16:15:38 +0000 Date: Wed, 15 May 2024 18:15:37 +0200 From: David Sterba To: syzbot Cc: axboe@kernel.dk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org, oleg@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Subject: Re: kernel BUG at fs/inode.c:LINE! (2) Message-ID: <20240515161537.GP4449@suse.cz> Reply-To: dsterba@suse.cz References: <20240515161314.GO4449@twin.jikos.cz> <0000000000007147c206188065ca@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000007147c206188065ca@google.com> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) X-Spam-Flag: NO X-Spam-Score: 0.27 X-Spam-Level: X-Spamd-Result: default: False [0.27 / 50.00]; SUSPICIOUS_RECIPS(1.50)[]; BAYES_HAM(-1.23)[89.45%]; NEURAL_HAM_LONG(-1.00)[-1.000]; URI_HIDDEN_PATH(1.00)[https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650]; HAS_REPLYTO(0.30)[dsterba@suse.cz]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_TLS_ALL(0.00)[]; TAGGED_RCPT(0.00)[c92c93d1f1aaaacdb9db]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; FUZZY_BLOCKED(0.00)[rspamd.com]; SUBJECT_HAS_EXCLAIM(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_SEVEN(0.00)[9]; REPLYTO_ADDR_EQ_FROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; DBL_BLOCKED_OPENRESOLVER(0.00)[appspotmail.com:email,syzkaller.appspot.com:url,imap1.dmz-prg2.suse.org:helo,suse.cz:replyto] On Wed, May 15, 2024 at 09:13:17AM -0700, syzbot wrote: > > On Fri, Aug 28, 2020 at 06:18:17AM -0700, syzbot wrote: > >> Hello, > >> > >> syzbot found the following issue on: > >> > >> HEAD commit: d012a719 Linux 5.9-rc2 > >> git tree: upstream > >> console output: https://syzkaller.appspot.com/x/log.txt?x=15aa650e900000 > >> kernel config: https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650 > >> dashboard link: https://syzkaller.appspot.com/bug?extid=c92c93d1f1aaaacdb9db > >> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) > >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12ecb939900000 > >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=140a19a9900000 > >> > >> The issue was bisected to: > >> > >> commit a9ed4a6560b8562b7e2e2bed9527e88001f7b682 > >> Author: Marc Zyngier > >> Date: Wed Aug 19 16:12:17 2020 +0000 > >> > >> epoll: Keep a reference on files added to the check list > >> > >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16a50519900000 > >> final oops: https://syzkaller.appspot.com/x/report.txt?x=15a50519900000 > >> console output: https://syzkaller.appspot.com/x/log.txt?x=11a50519900000 > >> > >> IMPORTANT: if you fix the issue, please add the following tag to the commit: > >> Reported-by: syzbot+c92c93d1f1aaaacdb9db@syzkaller.appspotmail.com > >> Fixes: a9ed4a6560b8 ("epoll: Keep a reference on files added to the check list") > >> > >> ------------[ cut here ]------------ > >> kernel BUG at fs/inode.c:1668! > > > > #syz set subsystem: fs > > The specified label "subsystem" is unknown. > Please use one of the supported labels. #syz set subsystems: fs