lkml.org 
[lkml]   [2019]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.1 115/121] cfg80211: fix memory leak of wiphy device name
Date
From: Eric Biggers <ebiggers@google.com>

commit 4f488fbca2a86cc7714a128952eead92cac279ab upstream.

In wiphy_new_nm(), if an error occurs after dev_set_name() and
device_initialize() have already been called, it's necessary to call
put_device() (via wiphy_free()) to avoid a memory leak.

Reported-by: syzbot+7fddca22578bc67c3fe4@syzkaller.appspotmail.com
Fixes: 1f87f7d3a3b4 ("cfg80211: add rfkill support")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/wireless/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -513,7 +513,7 @@ use_default_name:
&rdev->rfkill_ops, rdev);

if (!rdev->rfkill) {
- kfree(rdev);
+ wiphy_free(&rdev->wiphy);
return NULL;
}


\
 
 \ /
  Last update: 2019-06-24 12:22    [W:3.147 / U:0.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site