From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+5abecb17ba9299033d79@syzkaller.appspotmail.com>
Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
tytso@mit.edu
Subject: Re: [syzbot] [ext4?] WARNING: locking bug in get_page_from_freelist
Date: Mon, 25 Nov 2024 18:52:20 +0800 [thread overview]
Message-ID: <20241125105220.1566-1-hdanton@sina.com> (raw)
In-Reply-To: <6743e5af.050a0220.1cc393.0055.GAE@google.com>
On Sun, 24 Nov 2024 18:49:19 -0800
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 9f16d5e6f220 Merge tag 'for-linus' of git://git.kernel.org..
> git tree: upstream
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=177ab75f980000
Test the idea [1]
[1] https://lore.kernel.org/lkml/20241122155451.Mb2pmeyJ@linutronix.de/
#syz test
--- x/mm/kasan/generic.c
+++ y/mm/kasan/generic.c
@@ -538,7 +538,7 @@ static void __kasan_record_aux_stack(voi
return;
alloc_meta->aux_stack[1] = alloc_meta->aux_stack[0];
- alloc_meta->aux_stack[0] = kasan_save_stack(0, depot_flags);
+ alloc_meta->aux_stack[0] = kasan_save_stack(0, 0);
}
void kasan_record_aux_stack(void *addr)
--
next prev parent reply other threads:[~2024-11-25 10:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-04 17:56 [syzbot] [ext4?] WARNING: locking bug in get_page_from_freelist syzbot
2024-11-25 2:49 ` syzbot
2024-11-25 10:52 ` Hillf Danton [this message]
2024-11-25 11:10 ` syzbot
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