Messages in this thread Patch in this message | | | From | Colin King <> | Subject | [PATCH] staging: vc04_services: fix NULL pointer dereference on pointer 'service' | Date | Mon, 20 Mar 2017 14:08:50 +0000 |
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From: Colin Ian King <colin.king@canonical.com>
Currently, if pservice is null then service is set to NULL and immediately afterwards service is dereferenced causing a null pointer dereference. Fix this by bailing out early of the function with a null return.
Detected by CoverityScan, CID#1419681 ("Explicit null dereferenced")
Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index dc9f85c2a5da..4f9e738abddf 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -2673,7 +2673,7 @@ vchiq_add_service_internal(VCHIQ_STATE_T *state, if (!pservice) { kfree(service); - service = NULL; + return NULL; } service_quota = &state->service_quotas[service->localport]; -- 2.11.0
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