linux-ext4 - Re: INFO: rcu detected stall in ext4_file_write

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 PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

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

Date:   Thu, 21 Mar 2019 10:30:00 -0700
From:   syzbot <syzbot+7d19c5fe6a3f1161abb7@...kaller.appspotmail.com>
To:     acme@...nel.org, adilger.kernel@...ger.ca, dvyukov@...gle.com,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, mingo@...hat.com,
        peterz@...radead.org, syzkaller-bugs@...glegroups.com,
        tytso@....edu
Subject: Re: INFO: rcu detected stall in ext4_file_write_iter

Bisection is inconclusive: the bug happens on the oldest tested release.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17b1becf200000
start commit:   [unknown
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=1471becf200000
console output: https://syzkaller.appspot.com/x/log.txt?x=1071becf200000
dashboard link: https://syzkaller.appspot.com/bug?extid=7d19c5fe6a3f1161abb7
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=103908f8c00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=105e5cd0c00000

For information about bisection process see: https://goo.gl/tpsmEJ#bisection