lkml.org 
[lkml]   [2021]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ASoC: core: Fix Null-point-dereference in fmt_single_name()
Date
Check the return value of devm_kstrdup() in case of
Null-point-dereference.

Fixes: 45dd9943fce0 ("ASoC: core: remove artificial component and DAI name constraint")
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
sound/soc/soc-core.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 1c0904acb935..a76974ccfce1 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2225,6 +2225,8 @@ static char *fmt_single_name(struct device *dev, int *id)
return NULL;

name = devm_kstrdup(dev, devname, GFP_KERNEL);
+ if (!name)
+ return NULL;

/* are we a "%s.%d" name (platform and SPI components) */
found = strstr(name, dev->driver->name);
--
2.26.2
\
 
 \ /
  Last update: 2021-05-24 04:40    [W:0.060 / U:0.764 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site