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| author | Cathy Avery <cathy.avery@oracle.com> | 2015-10-02 09:35:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-11-09 10:12:58 -0800 |
| commit | c69cba6c93d95bb70ea7914f47e520aa99022a27 (patch) | |
| tree | 6bb06e66e802cd8a0a0c7712823f812147b83b1d /crypto/algapi.c | |
| parent | ff19840adcd4e1c86513adbcfa4f602813a3c568 (diff) | |
xen-blkfront: check for null drvdata in blkback_changed (XenbusStateClosing)
commit a54c8f0f2d7df525ff997e2afe71866a1a013064 upstream.
xen-blkfront will crash if the check to talk_to_blkback()
in blkback_changed()(XenbusStateInitWait) returns an error.
The driver data is freed and info is set to NULL. Later during
the close process via talk_to_blkback's call to xenbus_dev_fatal()
the null pointer is passed to and dereference in blkfront_closing.
Signed-off-by: Cathy Avery <cathy.avery@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto/algapi.c')
0 files changed, 0 insertions, 0 deletions