linux-kernel - fs/btrfs/inode.c:6039: warning: ‘bio’ is used uninitialized in this function

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Tue, 19 Apr 2011 13:00:30 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Josef Bacik <josef@...hat.com>,
	Chris Mason <chris.mason@...cle.com>
Cc:	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org
Subject: fs/btrfs/inode.c:6039: warning: ‘bio’ is used uninitialized in this function

fs/btrfs/inode.c: In function ‘btrfs_submit_direct_hook’:
fs/btrfs/inode.c:6039: warning: ‘bio’ is used uninitialized in this function

`BIO_BUG_ON(!atomic_read(&bio->bi_cnt))' in bio_put() later will blow up nicely
when passed a random pointer on the stack.

Introduced by commit 02f57c7aedef1a537f4b16db7061cdd8efa3bb4e
("Btrfs: don't split dio bios if we don't have to").

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/