In the Linux kernel, the following vulnerability has been resolved:can: m_can: m_can_read_fifo: fix memory leak in error branchIn m_can_read_fifo(), if the second call to m_can_fifo_read() fails,the function jump to the out_fail label and returns without callingm_can_receive_skb(). This means that the skb previously allocated byalloc_can_skb() is not freed. In other terms, this is a memory leak.This patch adds a goto label to destroy the skb if an error occurs.Issue was found with GCC -fanalyzer, please follow the link below fordetails.
CWE-401 Missing Release of Memory after Effective Lifetime