Messages in this thread Patch in this message | | | From | Yin Xiujiang <> | Subject | [PATCH] s390/3215: fix the array may be out of bounds | Date | Fri, 10 Dec 2021 15:02:17 +0800 |
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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
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