linux-kernel - syztest

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Message-ID: <20250427155717.69658-1-contact@arnaud-lcm.com>
Date: Sun, 27 Apr 2025 17:57:17 +0200
From: Arnaud Lecomte <contact@...aud-lcm.com>
To: syzbot+3291296495fc970e4b1c@...kaller.appspotmail.com
Cc: axboe@...nel.dk,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: syztest

#syz test

--- a/block/bio.c
+++ b/block/bio.c
@@ -691,6 +691,9 @@ static void bio_truncate(struct bio *bio, unsigned new_size)
  */
 void guard_bio_eod(struct bio *bio)
 {
+	if (unlikely(!bio->bi_bdev)
+		return;
+
 	sector_t maxsector = bdev_nr_sectors(bio->bi_bdev);
 
 	if (!maxsector)
-- 
2.43.0