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Vulnerability CVE-2021-47519
Published: 2024-05-24
| Description: |
In the Linux kernel, the following vulnerability has been resolved:
can: m_can: m_can_read_fifo: fix memory leak in error branch
In 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 calling
m_can_receive_skb(). This means that the skb previously allocated by
alloc_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 for
details. |
References: |
https://git.kernel.org/stable/c/75a422165477dd12d2d20aa7c9ee7c9a281c9908
https://git.kernel.org/stable/c/31cb32a590d62b18f69a9a6d433f4e69c74fdd56
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