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| author | Wenwen Wang <wang6495@umn.edu> | 2019-04-29 12:45:40 -0500 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-04-29 19:56:41 +0200 |
| commit | cbb88db76a1536e02e93e5bd37ebbfbb6c4043a9 (patch) | |
| tree | df45aeaa58f1d3638549c8812049764e73a4b7f0 /CREDITS | |
| parent | b60ee2e281b6c67cbe0bb8412f3cae53903173c6 (diff) | |
| download | lwn-cbb88db76a1536e02e93e5bd37ebbfbb6c4043a9.tar.gz lwn-cbb88db76a1536e02e93e5bd37ebbfbb6c4043a9.zip | |
ALSA: usx2y: fix a double free bug
In usX2Y_In04_init(), a new urb is firstly created through usb_alloc_urb()
and saved to 'usX2Y->In04urb'. Then, a buffer is allocated through
kmalloc() and saved to 'usX2Y->In04Buf'. If the allocation of the buffer
fails, the error code ENOMEM is returned after usb_free_urb(), which frees
the created urb. However, the urb is actually freed at card->private_free
callback, i.e., snd_usX2Y_card_private_free(). So the free operation here
leads to a double free bug.
To fix the above issue, simply remove usb_free_urb().
Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'CREDITS')
0 files changed, 0 insertions, 0 deletions