lkml.org 
[lkml]   [2021]   [Dec]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] s390/3215: fix the array may be out of bounds
Date
if the variable 'line' is NR_3215,
the 'raw3215[line]' will be invalid

Signed-off-by: Yin Xiujiang <yinxiujiang@kylinos.cn>
---
drivers/s390/char/con3215.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index f356607835d8..29409d4ca4d5 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -687,7 +687,8 @@ static void raw3215_remove (struct ccw_device *cdev)
for (line = 0; line < NR_3215; line++)
if (raw3215[line] == raw)
break;
- raw3215[line] = NULL;
+ if (line < NR_3215)
+ raw3215[line] = NULL;
spin_unlock(&raw3215_device_lock);
dev_set_drvdata(&cdev->dev, NULL);
raw3215_free_info(raw);
--
2.30.0
\
 
 \ /
  Last update: 2021-12-10 08:02    [W:0.035 / U:0.412 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site