From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
The type of member softirqs in structure kernel_stat is unsigned int, its
accumulated value can easily overflow. Changing to unsigned long can safely
solve the problem on 64-bit processors.
struct kernel_stat {
unsigned long irqs_sum;
- unsigned int softirqs[NR_SOFTIRQS];
+ unsigned long softirqs[NR_SOFTIRQS];
Zhen Lei (2):
softirq: fix integer overflow in function show_stat()
softirq: redefine the type of kernel_stat.softirqs[] as unsigned long
fs/proc/softirqs.c | 2 +-
fs/proc/stat.c | 4 ++--
include/linux/kernel_stat.h | 8 ++++----
kernel/rcu/tree.h | 2 +-
kernel/rcu/tree_stall.h | 6 +++---
5 files changed, 11 insertions(+), 11 deletions(-)
--
2.25.1
