Re: [PATCH] [RFC PATCH] ALSA: usb-audio: endpoint: Prevent NULL pointer deference in snd_usb_endpoint_close

On Fri, 26 Apr 2024 14:25:11 +0200, Rajashekar kuruva wrote:

When multiple plug-in and plug-out events occur, there is a risk of encountering a NULL pointer dereference leading to a kernel panic during a headset use-case. this issue arises in the snd_usb_endpoint_close function

Such a scenario can't happen: ep->iface_ref is changed only in chip->mutex lock, hence it can't be NULL there.

thanks,

Takashi