Messages in this thread Patch in this message | | | From | Emil Goode <> | Subject | [PATCH] staging: tidspbridge: Fix potential NULL pointer dereference | Date | Wed, 12 Jun 2013 16:33:15 +0200 |
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We free dcd_key on line 897 and then dereference it a few lines below. This patch adds a NULL check to make sure we can use dcd_key.
Signed-off-by: Emil Goode <emilgoode@gmail.com> --- drivers/staging/tidspbridge/rmgr/dbdcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/tidspbridge/rmgr/dbdcd.c b/drivers/staging/tidspbridge/rmgr/dbdcd.c index 3d2a26f..21ce3b7 100644 --- a/drivers/staging/tidspbridge/rmgr/dbdcd.c +++ b/drivers/staging/tidspbridge/rmgr/dbdcd.c @@ -899,7 +899,7 @@ int dcd_register_object(struct dsp_uuid *uuid_obj, } } spin_unlock(&dbdcd_lock); - if (&dcd_key->link == ®_key_list) + if (dcd_key && (&dcd_key->link == ®_key_list)) status = -EPERM; } -- 1.7.10.4
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