Date: Mon, 1 Jun 1998 16:18:32 -0400 (EDT) From: Peter Dufault <dufault@hda.com> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/6820: cd9660_mount NULL pointer deref for no CDROM drive Message-ID: <199806012018.QAA05579@hda.hda.com>
index | next in thread | raw e-mail
>Number: 6820
>Category: kern
>Synopsis: cd9660_mount NULL pointer deref for no CDROM drive
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jun 1 13:50:00 PDT 1998
>Last-Modified:
>Originator: Peter Dufault
>Organization:
Peter Dufault (dufault@hda.com) Realtime development, Machine control,
HD Associates, Inc. Safety critical systems, Agency approval
>Release: FreeBSD 3.0-Current Sun May 31
>Environment:
>Description:
>How-To-Repeat:
>Fix:
>Audit-Trail:
>Unformatted:
I tried to mount a CD on my crash box. Unfortunately I don't have a
CDROM drive there. cd9660_mount crashes with a NULL pointer dereference
of bdevsw[major(devvp->v_rdev)]:
> if ((mp->mnt_flag & MNT_UPDATE) == 0) {
> if (bdevsw[major(devvp->v_rdev)]->d_flags & D_NOCLUSTERR)
> mp->mnt_flag |= MNT_NOCLUSTERR;
> error = iso_mountfs(devvp, mp, p, &args);
> } else {
This may have been added in 1.29 in the CLUSTERRING commit.
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
help
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199806012018.QAA05579>