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ALSA: 6fire: Fix UAF at error handling during probe

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Although 6fire driver had a few fixes for dealing with the early error
handling during the probe phase, it forgot a pending URB before
freeing the resources, which may lead to a UAF.

This patch addresses it by doing the almost same cleanup procedure
like the normal disconnect phase at the error path.

Reported-and-tested-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Closes: https://lore.kernel.org/20260724030900.1984491-1-shuangpeng.kernel@gmail.com
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20260726074821.2288158-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2026-07-26 09:48:19 +02:00
parent 0970274613
commit a54bf16965
1 changed files with 4 additions and 0 deletions
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4
sound/usb/6fire/chip.c
View File

@ -150,6 +150,10 @@ static int usb6fire_chip_probe(struct usb_interface *intf,
return 0;
destroy_chip:
chip->shutdown = true;
if (card)
snd_card_disconnect(card);
usb6fire_chip_abort(chip);
snd_card_free(card);
return ret;
}