From: Jens Axboe <axboe@kernel.dk>
To: Edward Adam Davis <eadavis@qq.com>
Cc: hare@suse.de, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org,
syzbot+fcee6b76cf2e261c51a4@syzkaller.appspotmail.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH V3] block: no show partitions if partno corrupted
Date: Tue, 14 Jan 2025 08:02:15 -0700 [thread overview]
Message-ID: <813564af-a67a-4feb-ab32-1ca3bb41edfb@kernel.dk> (raw)
In-Reply-To: <tencent_7C8CA167C306EFD2EAC6590982EEC5AEE406@qq.com>
On 1/14/25 7:58 AM, Edward Adam Davis wrote:
> diff --git a/block/genhd.c b/block/genhd.c
> index 9130e163e191..3a9c36ad6bbd 100644
> --- a/block/genhd.c
> +++ b/block/genhd.c
> @@ -890,6 +890,9 @@ static int show_partition(struct seq_file *seqf, void *v)
>
> rcu_read_lock();
> xa_for_each(&sgp->part_tbl, idx, part) {
> + int partno = bdev_partno(part);
> +
> + WARN_ON_ONCE(partno >= DISK_MAX_PARTS);
> if (!bdev_nr_sectors(part))
> continue;
> seq_printf(seqf, "%4d %7d %10llu %pg\n",
Surely you still want to continue for that condition?
--
Jens Axboe
next prev parent reply other threads:[~2025-01-14 15:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <67841058.050a0220.216c54.0034.GAE@google.com>
2025-01-14 2:28 ` [PATCH] block: no show partitions if partno corrupted Edward Adam Davis
2025-01-14 7:21 ` Hannes Reinecke
2025-01-14 8:51 ` [PATCH V2] " Edward Adam Davis
2025-01-14 14:16 ` Jens Axboe
2025-01-14 14:58 ` [PATCH V3] " Edward Adam Davis
2025-01-14 15:02 ` Jens Axboe [this message]
2025-01-14 15:15 ` Edward Adam Davis
2025-01-14 15:25 ` Jens Axboe
2025-01-14 15:34 ` [PATCH V4] " Edward Adam Davis
2025-01-14 16:21 ` [PATCH V3] " Edward Adam Davis
2025-01-15 6:46 ` [PATCH V2] " Christoph Hellwig
2025-01-14 5:29 ` [syzbot] [fs?] KASAN: global-out-of-bounds Read in number syzbot
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