Messages in this thread | | | From | Vincent MAILHOL <> | Date | Wed, 27 Oct 2021 17:48:21 +0900 | Subject | Re: [PATCH v1] can: etas_es58x: es58x_rx_err_msg: fix memory leak in error path |
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On Wed. 27 Oct 2021 at 16:39, Marc Kleine-Budde <mkl@pengutronix.de> wrote: > On 27.10.2021 03:07:40, Vincent Mailhol wrote: > > In es58x_rx_err_msg(), if can->do_set_mode() fails, the function > > directly returns without calling netif_rx(skb). This means that the > > skb previously allocated by alloc_can_err_skb() is not freed. In other > > terms, this is a memory leak. > > > > This patch simply removes the return statement in the error branch and > > let the function continue. > > > > * Appendix: how the issue was found * > > Thanks for the explanation, but I think I'll remove the appendix while > applying.
The commit will have a link to this thread so if you don't mind, I suggest to replace the full appendix with:
Issue was found with GCC -fanalyzer, please follow the link below for details.
You can of course do the same for the m_can patch.
Yours sincerely, Vincent Mailhol
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