From: Wang ShaoBo bobo.shaobowang@huawei.com
hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8EF0Z
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Fix buffer overflow in mpam_handle_error_irq(): mpam_handle_error_irq() error: buffer overflow 'mpam_msc_err_str' 8 <= 8
Fixes: 44513976e11e ("arm64/mpam: Enabling registering and logging error interrupts") Signed-off-by: Wang ShaoBo bobo.shaobowang@huawei.com Signed-off-by: Jialin Zhang zhangjialin11@huawei.com --- arch/arm64/kernel/mpam/mpam_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/mpam/mpam_device.c b/arch/arm64/kernel/mpam/mpam_device.c index b3de7f518423..19c49f76d0e5 100644 --- a/arch/arm64/kernel/mpam/mpam_device.c +++ b/arch/arm64/kernel/mpam/mpam_device.c @@ -439,7 +439,7 @@ static irqreturn_t mpam_handle_error_irq(int irq, void *data) return IRQ_NONE;
/* No-one expects MPAM errors! */ - if (device_errcode <= _MPAM_NUM_ERRCODE) + if (device_errcode < _MPAM_NUM_ERRCODE) pr_err_ratelimited("unexpected error '%s' [esr:%x]\n", mpam_msc_err_str[device_errcode], device_esr);