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| author | Wenwen Wang <wang6495@umn.edu> | 2019-04-27 09:06:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 13:23:35 +0300 |
| commit | 2d8956305ae8529b15e492029c1b50bbfdf30ba5 (patch) | |
| tree | 5ad17aa4c7bca8037dde816bea4f2af9d14c9a05 /sound/pci/hda | |
| parent | b1c1888ad6c930ee7cdc7ca01069027462dfb37f (diff) | |
| download | linux-2d8956305ae8529b15e492029c1b50bbfdf30ba5.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/hda')
0 files changed, 0 insertions, 0 deletions