| Message ID | 20241014111527.2272428-3-quic_kuldsing@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | qcom_tzmem: Enhance Error Handling for shmbridge | expand |
diff --git a/drivers/firmware/qcom/qcom_tzmem.c b/drivers/firmware/qcom/qcom_tzmem.c index 92b365178235..977e48fec32f 100644 --- a/drivers/firmware/qcom/qcom_tzmem.c +++ b/drivers/firmware/qcom/qcom_tzmem.c @@ -203,6 +203,9 @@ qcom_tzmem_pool_new(const struct qcom_tzmem_pool_config *config) might_sleep(); + if (!config->policy) + return ERR_PTR(-EINVAL); + switch (config->policy) { case QCOM_TZMEM_POLICY_STATIC: if (!config->initial_size) @@ -412,6 +415,9 @@ void qcom_tzmem_free(void *vaddr) { struct qcom_tzmem_chunk *chunk; + if (!vaddr) + return; + scoped_guard(spinlock_irqsave, &qcom_tzmem_chunks_lock) chunk = radix_tree_delete_item(&qcom_tzmem_chunks, (unsigned long)vaddr, NULL);
The qcom_tzmem driver currently has exposed APIs that lack validations on required input parameters. This oversight can lead to unexpected null pointer dereference crashes. To address this issue, add sanity for required input parameters. Signed-off-by: Kuldeep Singh <quic_kuldsing@quicinc.com> --- drivers/firmware/qcom/qcom_tzmem.c | 6 ++++++ 1 file changed, 6 insertions(+)