On Fri, 30 Sep 2022 11:23:21 +0200, Takashi Iwai wrote:
On Fri, 30 Sep 2022 04:23:23 +0200, Sabri N. Ferreiro wrote:
Hi,
When I used fuzz testing to test Linux kernel 6.0.0-rc6, the kernel triggered the following error: HEAD commit: 521a547ced6477c54b4b0cc206000406c221b4d6 git tree: upstream
Could you retest with 6.0-rc7 or later? A commit reverting the change might influence on the behavior significantly.
And if it's reproducible on 6.0-rc7, please try the following fix.
thanks,
Takashi
-- 8< -- --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -95,12 +95,13 @@ static inline unsigned get_usb_high_speed_rate(unsigned int rate) */ static void release_urb_ctx(struct snd_urb_ctx *u) { - if (u->buffer_size) + if (u->urb && u->buffer_size) usb_free_coherent(u->ep->chip->dev, u->buffer_size, u->urb->transfer_buffer, u->urb->transfer_dma); usb_free_urb(u->urb); u->urb = NULL; + u->buffer_size = 0; }
static const char *usb_error_string(int err)