lkml.org 
[lkml]   [2020]   [Jun]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] [drivers/x86] fix bound check in pmc_core_mphy_pg_show
Date
Check bounds before accessing map[].

Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
---
drivers/platform/x86/intel_pmc_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 7c8bdab078cf..f571f9cf7217 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -795,7 +795,7 @@ static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused)
msleep(10);
val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);

- for (index = 0; map[index].name && index < 8; index++) {
+ for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
map[index].name,
map[index].bit_mask & val_low ? "Not power gated" :
--
2.17.1
\
 
 \ /
  Last update: 2020-06-24 05:32    [W:0.052 / U:2.704 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site