[Bugme-new] [Bug 10881] New: V7 FS: corrupted iso9660 fs recognized as V7 FS, causes BUG()

bugme-daemon at bugzilla.kernel.org bugme-daemon at bugzilla.kernel.org
Sat Jun 7 08:13:10 PDT 2008


http://bugzilla.kernel.org/show_bug.cgi?id=10881

           Summary: V7 FS: corrupted iso9660 fs recognized as V7 FS, causes
                    BUG()
           Product: File System
           Version: 2.5
     KernelVersion: 2.6.25.4
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: fs_other at kernel-bugs.osdl.org
        ReportedBy: sliedes at cc.hut.fi


Latest working kernel version:
Earliest failing kernel version:
Distribution: Debian sid (unstable)
Hardware Environment: qemu x86
Software Environment: Minimal Debian sid
Problem Description:

The attached files, which are actually (intentionally) corrupted iso9660
filesystems, are recognized as V7 FS, whatever that is. Attempts to use the
filesystem then results in an oops, which probably doesn't speak highly of that
filesystem's robustness against corrupted filesystems.

Steps to reproduce:

For hdb.10007430.gz:

1. gunzip the image
2. mount the image with mount hdb.10007430 /mnt -o loop (it should be
recognized as V7 FS)
3. umount /mnt - oops

For hdb.20005046.gz:

1. gunzip the image
2. mount the image with mount hdb.20005046 /mnt -o loop (it should be
recognized as V7 FS)
3. cd /mnt
4. cat a/b - oops


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