On Mon, 29 Apr 2019 19:45:40 +0200, Wenwen Wang wrote: > > 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@xxxxxxx> Applied now. Thanks. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
