linux-kernel - [PATCH 0/2] nilfs2: protect busy buffer heads from being force-cleared

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Message-ID: <20250107200202.6432-1-konishi.ryusuke@gmail.com>
Date: Wed,  8 Jan 2025 05:00:45 +0900
From: Ryusuke Konishi <konishi.ryusuke@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-nilfs@...r.kernel.org,
	syzbot+b2b14916b77acf8626d7@...kaller.appspotmail.com,
	syzbot+d98fd19acd08b36ff422@...kaller.appspotmail.com,
	syzkaller-bugs@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] nilfs2: protect busy buffer heads from being force-cleared

Hi Andrew, please queue this series for the next cycle.

This series fixes the buffer head state inconsistency issues reported by
syzbot that occurs when the filesystem is corrupted and falls back to
read-only, and the associated buffer head use-after-free issue.

Thanks,
Ryusuke Konishi

Ryusuke Konishi (2):
  nilfs2: do not force clear folio if buffer is referenced
  nilfs2: protect access to buffers with no active references

 fs/nilfs2/page.c    | 31 +++++++++++++++++++++++++++----
 fs/nilfs2/segment.c |  4 +++-
 2 files changed, 30 insertions(+), 5 deletions(-)

-- 
2.43.0