Commit f6749da1 authored by Alexander Gordeev's avatar Alexander Gordeev
Browse files

s390/crash: fix incorrect number of bytes to copy to user space 



The number of bytes in a chunk is correctly calculated, but instead
the total number of bytes is passed to copy_to_user_real() function.

Reported-by: default avatarMatthew Wilcox <willy@infradead.org>
Fixes: df9694c7 ("s390/dump: streamline oldmem copy functions")
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
parent 86caa4b6

arch/s390/kernel/crash_dump.c

+1 −1
Original line number Diff line number Diff line
@@ -199,7 +199,7 @@ static int copy_oldmem_user(void __user *dst, unsigned long src, size_t count) 
			} else {

				len = count;

			}

			rc = copy_to_user_real(dst, src, count);

			rc = copy_to_user_real(dst, src, len);

			if (rc)

				return rc;

		}