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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 09:54:12 +0000 (10:54 +0100)
commit240cf5d3cb5e4d3eb1b7abc83b54563fe992d306
treee426ed9afb6b5cbed9e902fc8e47f17d8ab29bd8tree
parentf4295b7dca8751a4d150eadb95d33671818e37b4commit | 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
Linux 6.x block layer and io_uring tree(s)