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charset="UTF-8" X-Rspamd-Server: rspam06 X-Stat-Signature: hkeqgm61fjw9k36h6jcqn354cg5xfner X-Rspam-User: X-Rspamd-Queue-Id: 00D2840005 X-HE-Tag: 1790617316-895137 X-HE-Meta: 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 KlAT4jch 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: check_stack_object() assumes that the kernel stack size is THREAD_SIZE. The allocated kernel stack size may not be THREAD_SIZE anymore, rely on the newly introduced helper task_stack_{low, high}() Signed-off-by: Mostafa Saleh --- mm/usercopy.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/usercopy.c b/mm/usercopy.c index 5de7a518b1b1..f31a42b9f9c4 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -36,8 +36,8 @@ */ static noinline int check_stack_object(const void *obj, unsigned long len) { - const void * const stack = task_stack_page(current); - const void * const stackend = stack + THREAD_SIZE; + const void * const stack = task_stack_low(current); + const void * const stackend = task_stack_high(current); int ret; /* Object is not on the stack at all. */ -- 2.56.0.rc1.315.gc6ed9934b7-goog