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| author | Kris Shannon <kris@shannon.id.au> | 2009-03-02 19:47:37 +1100 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-03-05 12:04:57 +0100 |
| commit | a1a15ac5f9aeee521c048a88fc1aec848e623de7 (patch) | |
| tree | 964c1fe343bbc8edc24003df15dd475f1255e7e5 /block/ioctl.c | |
| parent | 559595a985e106d2fa9f0c79b7f5805453fed593 (diff) | |
| download | linux-a1a15ac5f9aeee521c048a88fc1aec848e623de7.tar.gz linux-a1a15ac5f9aeee521c048a88fc1aec848e623de7.tar.bz2 linux-a1a15ac5f9aeee521c048a88fc1aec848e623de7.zip | |
Fix kernel NULL pointer dereference in xen-blkfront
When booting Xen Dom0 on a pre-release 3.2.1 hypervisor the system Oopses on a
"Unable to handle kernel NULL pointer dereference" in xenwatch.
From the backtrace it looks like backend_changed is calling bdget_disk
with a NULL pointer. Checking for NULL and returning ENODEV instead
allows the kernel to boot.
Diffstat (limited to 'block/ioctl.c')
0 files changed, 0 insertions, 0 deletions