Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 05/24] misc: vexpress: Off by one in vexpress_syscfg_exec() | Date | Wed, 13 Feb 2019 19:38:02 +0100 |
| |
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dan Carpenter <dan.carpenter@oracle.com>
commit f8a70d8b889f180e6860cb1f85fed43d37844c5a upstream.
The > comparison should be >= to prevent reading beyond the end of the func->template[] array.
(The func->template array is allocated in vexpress_syscfg_regmap_init() and it has func->num_templates elements.)
Fixes: 974cc7b93441 ("mfd: vexpress: Define the device as MFD cells") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/misc/vexpress-syscfg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/misc/vexpress-syscfg.c +++ b/drivers/misc/vexpress-syscfg.c @@ -61,7 +61,7 @@ static int vexpress_syscfg_exec(struct v int tries; long timeout; - if (WARN_ON(index > func->num_templates)) + if (WARN_ON(index >= func->num_templates)) return -EINVAL; command = readl(syscfg->base + SYS_CFGCTRL);
| |