Unverified Commit 22aee869 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!6970 ALSA: usb-audio: Fix an out-of-bounds bug in __snd_usb_parse_audio_interface() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Lin Yujun <linyujun809@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/VO47ZGTRGLT2QTA7EUV5ZLRT5WAKUSXL/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9LKC3 
 
Link:https://gitee.com/openeuler/kernel/pulls/6970

 

Reviewed-by: default avatarZhang Jianhua <chris.zjh@huawei.com>
Reviewed-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents 5fb63ca4 d7be29a4

sound/usb/stream.c

+1 −1
Original line number Diff line number Diff line
@@ -1110,7 +1110,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) 
	 * Dallas DS4201 workaround: It presents 5 altsettings, but the last

	 * one misses syncpipe, and does not produce any sound.

	 */

	if (chip->usb_id == USB_ID(0x04fa, 0x4201))

	if (chip->usb_id == USB_ID(0x04fa, 0x4201) && num >= 4)

		num = 4;



	for (i = 0; i < num; i++) {