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authorZenghui Yu2021-07-27 10:52:31 +0800
committerKalle Valo2021-08-29 14:44:57 +0300
commitb63aed3ff195130fef12e0af590f4838cf0201d8 (patch)
tree83a21667fa4b292dc20cb3895e2a24f252b9f658 /drivers/bcma/host_soc.c
parentaee7c86a61c7b846ece6ee462a1145f2a209f24c (diff)
bcma: Fix memory leak for internally-handled cores
kmemleak reported that dev_name() of internally-handled cores were leaked on driver unbinding. Let's use device_initialize() to take refcounts for them and put_device() to properly free the related stuff. While looking at it, there's another potential issue for those which should be *registered* into driver core. If device_register() failed, we put device once and freed bcma_device structures. In bcma_unregister_cores(), they're treated as unregistered and we hit both UAF and double-free. That smells not good and has also been fixed now. Fixes: ab54bc8460b5 ("bcma: fill core details for every device") Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210727025232.663-2-yuzenghui@huawei.com
Diffstat (limited to 'drivers/bcma/host_soc.c')
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