From: syzbot <syzbot+41453ea05ab61c075f1f@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Forwarded: Re: [syzbot] [ext4?] general protection fault in __bh_submit
Date: Wed, 02 Sep 2026 13:11:51 -0700 [thread overview]
Message-ID: <6a988307.9266084e.bf0d7.000e.GAE@google.com> (raw)
In-Reply-To: <6a964b83.99c12218.408a8.0001.GAE@google.com>
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Subject: Re: [syzbot] [ext4?] general protection fault in __bh_submit
Author: pavankumaryalagada@gmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 8b72f6626dc39b9e7e82b2721d4f7c3b86286012
diff --git a/fs/buffer.c b/fs/buffer.c
index 427d8a817cd5..f46fa6413032 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1106,7 +1106,8 @@ static void __bh_submit(struct buffer_head *bh, blk_opf_t opf,
bio = bio_alloc(bh->b_bdev, 1, opf, GFP_NOIO);
- if (folio_test_dropbehind(bh->b_folio) && op_is_write(opf))
+ if (bh->b_folio && folio_test_dropbehind(bh->b_folio) &&
+ op_is_write(opf))
bio_set_flag(bio, BIO_COMPLETE_IN_TASK);
if (IS_ENABLED(CONFIG_FS_ENCRYPTION))
next prev parent reply other threads:[~2026-09-02 20:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 3:50 syzbot
2026-09-02 20:11 ` syzbot [this message]
2026-09-04 12:04 ` syzbot
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