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(parent: a95116b) | patch
i2c: Fix a potential use after free
authorXu Wang <vulab@iscas.ac.cn>
Fri, 27 Dec 2019 09:34:32 +0000 (09:34 +0000)
committerWolfram Sang <wsa@kernel.org>
Thu, 16 Jun 2022 19:39:40 +0000 (21:39 +0200)
commit07c2a9e4a0f7f51fa9b67a67744ce620fda18544
treebea84d2a77eb97f4a861e6e9e3a31babdac91a02tree | snapshot
parenta95116b5c6d7e93ba5338bc28d7d6f132680e8a4commit | diff
i2c: Fix a potential use after free

Free the adap structure only after we are done using it.
This patch just moves the put_device() down a bit to avoid the
use after free.

Fixes: f53eb995e73c ("i2c: core: manage i2c bus device refcount in i2c_[get|put]_adapter")
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
[wsa: added comment to the code, added Fixes tag]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
drivers/i2c/i2c-core-base.c diff | blob | history
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