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HSI: core: Fix return freed object in hsi_new_client
authorChengfeng Ye <cyeaa@connect.ust.hk>
Fri, 5 Nov 2021 13:45:07 +0000 (06:45 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Jan 2022 07:47:37 +0000 (08:47 +0100)
commitfd95bb02e0fbed1852fcd746eee736a187c7cdd5
tree1cadb00cb00709050fdbae4f3496a7711a2e708ftree | snapshot
parent0e2705a3f9b7190fabc068bd3db687032c1a589ccommit | diff
HSI: core: Fix return freed object in hsi_new_client

[ Upstream commit a1ee1c08fcd5af03187dcd41dcab12fd5b379555 ]

cl is freed on error of calling device_register, but this
object is return later, which will cause uaf issue. Fix it
by return NULL on error.

Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/hsi/hsi_core.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git