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H A D | raw.c | c275a176 Mon Aug 21 09:45:47 CDT 2023 Oliver Hartkopp <socketcan@hartkopp.net> can: raw: add missing refcount for memory leak fix
Commit ee8b94c8510c ("can: raw: fix receiver memory leak") introduced a new reference to the CAN netdevice that has assigned CAN filters. But this new ro->dev reference did not maintain its own refcount which lead to another KASAN use-after-free splat found by Eric Dumazet.
This patch ensures a proper refcount for the CAN nedevice.
Fixes: ee8b94c8510c ("can: raw: fix receiver memory leak") Reported-by: Eric Dumazet <edumazet@google.com> Cc: Ziyang Xuan <william.xuanziyang@huawei.com> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/r/20230821144547.6658-3-socketcan@hartkopp.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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