Re: [PATCH next 1/2] sound: usb: fix NULL ptr dereference in usb_audio_probe

2021-03-08 Thread Takashi Iwai
On Mon, 08 Mar 2021 23:30:36 +0100, Pavel Skripkin wrote: > > syzbot reported null pointer dereference in usb_audio_probe. > The problem was in case, when quirk == NULL. It's not an > error condition, so quirk must be checked before dereferencing. > > Call Trace: > usb_probe_interface+0x315/0x7f

[PATCH next 1/2] sound: usb: fix NULL ptr dereference in usb_audio_probe

2021-03-08 Thread Pavel Skripkin
syzbot reported null pointer dereference in usb_audio_probe. The problem was in case, when quirk == NULL. It's not an error condition, so quirk must be checked before dereferencing. Call Trace: usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 really_probe+0x291/0xe60 drivers/base/dd