From: Eric Biggers <ebiggers@kernel.org>
To: syzbot <syzbot+8f477ac014ff5b32d81f@syzkaller.appspotmail.com>
Cc: chao@kernel.org, jaegeuk@kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [f2fs?] KASAN: slab-use-after-free Read in kill_f2fs_super
Date: Fri, 12 Jan 2024 16:50:31 -0800 [thread overview]
Message-ID: <20240113005031.GA1147@sol.localdomain> (raw)
In-Reply-To: <000000000000ec3dd2060ec8e941@google.com>
On Fri, Jan 12, 2024 at 04:32:21PM -0800, syzbot wrote:
> loop0: detected capacity change from 0 to 63271
> F2FS-fs (loop0): Mismatch start address, segment0(512) cp_blkaddr(605)
> F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
> F2FS-fs (loop0): invalid crc value
> F2FS-fs (loop0): SIT is corrupted node# 0 vs 1
> F2FS-fs (loop0): Failed to initialize F2FS segment manager (-117)
> ==================================================================
> BUG: KASAN: slab-use-after-free in destroy_device_list fs/f2fs/super.c:1606 [inline]
> BUG: KASAN: slab-use-after-free in kill_f2fs_super+0x618/0x690 fs/f2fs/super.c:4932
> Read of size 4 at addr ffff888023bdd77c by task syz-executor275/5046
Sorry, this is my fault. I'll fix this.
- Eric
next prev parent reply other threads:[~2024-01-13 0:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-12 17:48 [syzbot] [f2fs?] KASAN: slab-use-after-free Read in kill_f2fs_super syzbot
2024-01-12 18:14 ` syzbot
2024-01-13 1:50 ` Hillf Danton
2024-01-13 2:14 ` syzbot
2024-01-13 0:32 ` syzbot
2024-01-13 0:50 ` Eric Biggers [this message]
2024-01-13 6:38 ` syzbot
2024-01-18 3:59 ` Eric Biggers
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