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Fri, 13 Feb 2026 01:21:38 -0800 (PST) From: Qing Wang To: syzbot+cff8e1b82d7911dd051c@syzkaller.appspotmail.com Cc: agruenba@redhat.com, gfs2@lists.linux.dev, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [gfs2?] general protection fault in gfs2_remove_from_journal (2) Date: Fri, 13 Feb 2026 17:21:33 +0800 Message-Id: <20260213092133.2440431-1-wangqing7171@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <693b73ba.a70a0220.33cd7b.0044.GAE@google.com> References: <693b73ba.a70a0220.33cd7b.0044.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index e4356198d8d8..3a60a8bd80f7 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -349,7 +349,8 @@ void gfs2_remove_from_journal(struct buffer_head *bh, int meta) if (test_clear_buffer_pinned(bh)) { trace_gfs2_pin(bd, 0); atomic_dec(&sdp->sd_log_pinned); - list_del_init(&bd->bd_list); + if (bd) + list_del_init(&bd->bd_list); if (meta == REMOVE_META) tr->tr_num_buf_rm++; else