mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-04-08 12:02:33 +02:00
[ Upstream commit9c573cd313] The kstack_offset variable was really only ever using the low bits for kernel stack offset entropy. Add a ror32() to increase bit diffusion. Suggested-by: Arnd Bergmann <arnd@arndb.de> Fixes:39218ff4c6("stack: Optionally randomize kernel stack offset each syscall") Link: https://lore.kernel.org/r/20240309202445.work.165-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org>