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From: syzbot <syzbot+345b75652b1d24227443@syzkaller.appspotmail.com>
To: adilger.kernel@dilger.ca, clang-built-linux@googlegroups.com,
	linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
	natechancellor@gmail.com, ndesaulniers@google.com,
	syzkaller-bugs@googlegroups.com, tytso@mit.edu
Subject: Re: UBSAN: shift-out-of-bounds in ext4_fill_super
Date: Wed, 09 Dec 2020 19:50:03 -0800	[thread overview]
Message-ID: <00000000000024030c05b61412e6@google.com> (raw)
In-Reply-To: <20201210023638.GP52960@mit.edu>

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to checkout kernel repo git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git on commit e360ba58d067a30a4e3e7d55ebdd919885a058d6: failed to run ["git" "fetch" "--tags" "d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8"]: exit status 1
From git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
 * [new branch]                bisect-test-ext4-035     -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/bisect-test-ext4-035
 * [new branch]                bisect-test-generic-307  -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/bisect-test-generic-307
 * [new branch]                dev                      -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/dev
 * [new branch]                ext4-3.18                -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-3.18
 * [new branch]                ext4-4.1                 -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-4.1
 * [new branch]                ext4-4.4                 -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-4.4
 * [new branch]                ext4-4.9                 -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-4.9
 * [new branch]                ext4-dax                 -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-dax
 * [new branch]                ext4-tools               -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/ext4-tools
 * [new branch]                fix-bz-206443            -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/fix-bz-206443
 * [new branch]                for-stable               -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/for-stable
 * [new branch]                fsverity                 -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/fsverity
 * [new branch]                lazy_journal             -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/lazy_journal
 * [new branch]                master                   -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/master
 * [new branch]                origin                   -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/origin
 * [new branch]                pu                       -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/pu
 * [new branch]                test                     -> d06f7b29746c7f0a52f349ff7fbf2a3f22d27cf8/test
 * [new tag]                   ext4-for-linus-5.8-rc1-2 -> ext4-for-linus-5.8-rc1-2
 ! [rejected]                  ext4_for_linus           -> ext4_for_linus  (would clobber existing tag)
 * [new tag]                   ext4_for_linus_bugfixes  -> ext4_for_linus_bugfixes
 * [new tag]                   ext4_for_linus_cleanups  -> ext4_for_linus_cleanups
 * [new tag]                   ext4_for_linus_fixes     -> ext4_for_linus_fixes
 * [new tag]                   ext4_for_linus_fixes2    -> ext4_for_linus_fixes2



Tested on:

commit:         [unknown 
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git e360ba58d067a30a4e3e7d55ebdd919885a058d6
dashboard link: https://syzkaller.appspot.com/bug?extid=345b75652b1d24227443
compiler:       gcc (GCC) 10.1.0-syz 20200507
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1499c287500000


  reply	other threads:[~2020-12-10  3:51 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-09  7:33 UBSAN: shift-out-of-bounds in ext4_fill_super syzbot
2020-12-10  2:36 ` Theodore Y. Ts'o
2020-12-10  3:50   ` syzbot [this message]
2020-12-10  8:09     ` Dmitry Vyukov
2020-12-10 13:56       ` Dmitry Vyukov
2020-12-10 19:24         ` syzbot
2020-12-10 18:28       ` Theodore Y. Ts'o
2020-12-14 14:37         ` Dmitry Vyukov
2020-12-14 20:36           ` Theodore Y. Ts'o
2020-12-15 10:09             ` Dmitry Vyukov

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