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From: syzbot <syzbot+7ea0b96c4ddb49fd1a70@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [ocfs2?] KMSAN: uninit-value in _find_next_bit
Date: Sun, 23 Mar 2025 18:01:43 -0700	[thread overview]
Message-ID: <67e0aef7.050a0220.a7ebc.0007.GAE@google.com> (raw)
In-Reply-To: <67ddd191.050a0220.25ae54.006a.GAE@google.com>

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***

Subject: Re: [syzbot] [ocfs2?] KMSAN: uninit-value in _find_next_bit
Author: lizhi.xu@windriver.com

#syz test

diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 2956d888c131..cc8bb0650b8f 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -309,6 +309,9 @@ static int ocfs2_add_recovery_chunk(struct super_block *sb,
 	}
 	memcpy(rc->rc_bitmap, dchunk->dqc_bitmap,
 	       (ol_chunk_entries(sb) + 7) >> 3);
+	printk("bitmap has been memcpy to rc, %s\n", __func__);
+	for_each_set_bit(bit, rc->rc_bitmap, ol_chunk_entries(sb));
+	printk("bitmap has been inited, %s\n", __func__);
 	list_add_tail(&rc->rc_list, head);
 	return 0;
 }

  parent reply	other threads:[~2025-03-24  1:01 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-21 20:52 [syzbot] [ocfs2?] KMSAN: uninit-value in _find_next_bit syzbot
2025-03-22  1:40 ` Edward Adam Davis
2025-03-22  6:02   ` syzbot
2025-03-22  8:41 ` Edward Adam Davis
2025-03-22  9:05   ` syzbot
2025-03-23  2:36 ` Edward Adam Davis
2025-03-23  9:52   ` syzbot
2025-03-23 10:17 ` Edward Adam Davis
2025-03-23 10:43   ` syzbot
2025-03-24  1:01 ` syzbot [this message]
2025-03-24  1:39 ` [syzbot] " syzbot
2025-03-26  1:09 ` [PATCH] " I Hsin Cheng
2025-03-26  1:23 ` I Hsin Cheng
2025-03-26  1:59   ` syzbot
2025-03-26  2:19 ` I Hsin Cheng
2025-03-26  2:43   ` syzbot
2025-03-26  3:04 ` I Hsin Cheng
2025-03-26  3:58   ` syzbot
2025-03-26  3:20 ` [syzbot] " syzbot
2026-04-17 10:12 ` Forwarded: [PATCH] ocfs2: zero-initialize quota recovery bitmap allocation syzbot
2026-04-17 16:21 ` Forwarded: Re: [syzbot] KMSAN: uninit-value in ocfs2_recover_local_quota_file syzbot

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