Commit af50130d authored by Jens Wiklander's avatar Jens Wiklander Committed by Zheng Zengkai
Browse files

tee: fix memory leak in tee_shm_register()

stable inclusion
from stable-v5.10.138
commit 606fe84a41851ab8307bb6096189dc8f4c8ba16b
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60QFD

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=606fe84a41851ab8307bb6096189dc8f4c8ba16b



--------------------------------

Moves the access_ok() check for valid memory range from user space from
the function tee_shm_register() to tee_ioctl_shm_register(). With this
we error out early before anything is done that must be undone on error.

Fixes: 578c349570d2 ("tee: add overflow check in register_shm_helper()")
Cc: stable@vger.kernel.org # 5.10
Reported-by: default avatarPavel Machek <pavel@denx.de>
Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: default avatarWei Li <liwei391@huawei.com>
parent f4566002
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