From: Matthew Wilcox <willy@infradead.org>
To: Edward Adam Davis <eadavis@qq.com>
Cc: guohui.study@gmail.com, brauner@kernel.org, jack@suse.cz,
jfs-discussion@lists.sourceforge.net,
linux-kernel@vger.kernel.org, lizhi.xu@windriver.com,
shaggy@kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH] jfs: Fix null-ptr-deref in write_special_inodes
Date: Tue, 22 Oct 2024 13:13:59 +0100 [thread overview]
Message-ID: <ZxeXBwLCsIwNYmlP@casper.infradead.org> (raw)
In-Reply-To: <tencent_7C86DFB364837BA979A3B0A44CF768577205@qq.com>
On Tue, Oct 15, 2024 at 12:50:05PM +0800, Edward Adam Davis wrote:
> There is a race condition when accessing ipimap and ipbmap.
>
> CPU1 CPU2
> ==== ====
> jfs_umount
> sbi->ipimap = NULL; lmLogSync
how are we unmounting the filesystem while still writing to it?
next prev parent reply other threads:[~2024-10-22 12:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-12 9:13 BUG: unable to handle kernel NULL pointer dereference " Hui Guo
2024-10-14 14:22 ` Jan Kara
2024-10-14 14:28 ` Dave Kleikamp
2024-10-15 4:50 ` [PATCH] jfs: Fix null-ptr-deref " Edward Adam Davis
2024-10-22 12:13 ` Matthew Wilcox [this message]
2024-10-22 15:28 ` Edward Adam Davis
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