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| author | Wenwen Wang <wang6495@umn.edu> | 2019-04-27 09:06:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-22 08:39:47 +0300 |
| commit | 5d981f0b09f385322737bc2eb7af627e40fe95b9 (patch) | |
| tree | 7e91474697dc9a699a23df909bdab9f92de72e24 /sound/pci | |
| parent | 2c37e50c717676502dfbc67c83ea721ab84b6baa (diff) | |
| download | linux-5d981f0b09f385322737bc2eb7af627e40fe95b9.tar.xz | |
ALSA: usb-audio: Fix a memory leak bug
commit cb5173594d50c72b7bfa14113dfc5084b4d2f726 upstream.
In parse_audio_selector_unit(), the string array 'namelist' is allocated
through kmalloc_array(), and each string pointer in this array, i.e.,
'namelist[]', is allocated through kmalloc() in the following for loop.
Then, a control instance 'kctl' is created by invoking snd_ctl_new1(). If
an error occurs during the creation process, the string array 'namelist',
including all string pointers in the array 'namelist[]', should be freed,
before the error code ENOMEM is returned. However, the current code does
not free 'namelist[]', resulting in memory leaks.
To fix the above issue, free all string pointers 'namelist[]' in a loop.
Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/pci')
0 files changed, 0 insertions, 0 deletions