Jann Horn cdc1b9b47b tee: Prevent size calculation wraparound on 32-bit kernels ... [ Upstream commit 39bb67edcc ] The current code around TEE_IOCTL_PARAM_SIZE() is a bit wrong on 32-bit kernels: Multiplying a user-provided 32-bit value with the size of a structure can wrap around on such platforms. Fix it by using saturating arithmetic for the size calculation. This has no security consequences because, in all users of TEE_IOCTL_PARAM_SIZE(), the subsequent kcalloc() implicitly checks for wrapping. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> Tested-by: Rouven Czerwinski <rouven.czerwinski@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-06-27 11:08:57 +01:00
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amdtee
optee
Kconfig
Makefile
tee_core.c	tee: Prevent size calculation wraparound on 32-bit kernels	2025-06-27 11:08:57 +01:00
tee_private.h
tee_shm_pool.c
tee_shm.c