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From: syzbot <syzbot+912776840162c13db1a3@syzkaller.appspotmail.com>
To: hdanton@sina.com, linux-kernel@vger.kernel.org,
	syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] KASAN: use-after-free Read in xfs_qm_dqfree_one
Date: Mon, 05 Dec 2022 09:06:16 -0800	[thread overview]
Message-ID: <000000000000914b5f05ef17b451@google.com> (raw)
In-Reply-To: <20221205140422.7412-1-hdanton@sina.com>

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4111 } 2640 jiffies s: 2849 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):


Tested on:

commit:         0ba09b17 Revert "mm: align larger anonymous mappings o..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=135dc11d880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=912776840162c13db1a3
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1551f50f880000


       reply	other threads:[~2022-12-05 17:06 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20221205140422.7412-1-hdanton@sina.com>
2022-12-05 17:06 ` syzbot [this message]
2022-12-05  9:21 [syzbot] KASAN: use-after-free Read in xfs_qm_dqfree_one syzbot
2022-12-05 10:35 ` syzbot
2022-12-05 23:58   ` Dave Chinner
2022-12-06  3:12     ` syzbot
2022-12-06  3:34       ` Dave Chinner
2022-12-06 11:06         ` Dmitry Vyukov
2022-12-06 15:32           ` Paul E. McKenney
2022-12-06 16:19             ` Dmitry Vyukov
2022-12-06 17:47               ` Paul E. McKenney
2022-12-06 21:03               ` Dave Chinner
2022-12-06 20:58           ` Dave Chinner
     [not found]           ` <20221209034605.1801-1-hdanton@sina.com>
2022-12-09  4:14             ` Paul E. McKenney

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