From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dongxiang Ke <kdx.glider@gmail.com>, Takashi Iwai <tiwai@suse.de>,
Sasha Levin <sashal@kernel.org>,
perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org
Subject: [PATCH AUTOSEL 5.19 14/22] ALSA: usb-audio: Fix an out-of-bounds bug in __snd_usb_parse_audio_interface()
Date: Wed, 14 Sep 2022 05:00:55 -0400 [thread overview]
Message-ID: <20220914090103.470630-14-sashal@kernel.org> (raw)
In-Reply-To: <20220914090103.470630-1-sashal@kernel.org>
From: Dongxiang Ke <kdx.glider@gmail.com>
[ Upstream commit e53f47f6c1a56d2af728909f1cb894da6b43d9bf ]
There may be a bad USB audio device with a USB ID of (0x04fa, 0x4201) and
the number of it's interfaces less than 4, an out-of-bounds read bug occurs
when parsing the interface descriptor for this device.
Fix this by checking the number of interfaces.
Signed-off-by: Dongxiang Ke <kdx.glider@gmail.com>
Link: https://lore.kernel.org/r/20220906024928.10951-1-kdx.glider@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/usb/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index ceb93d798182c..40ce8a1cb318a 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -1105,7 +1105,7 @@ static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
* 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++) {
--
2.35.1
next prev parent reply other threads:[~2022-09-14 9:03 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-14 9:00 [PATCH AUTOSEL 5.19 01/22] arm64: dts: juno: Add missing MHU secure-irq Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 02/22] spi: cadence-quadspi: Disable irqs during indirect reads Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 03/22] ASoC: nau8824: Fix semaphore unbalance at error paths Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 04/22] regulator: pfuze100: Fix the global-out-of-bounds access in pfuze100_regulator_probe() Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 05/22] ASoC: fsl_aud2htx: register platform component before registering cpu dai Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 06/22] ASoC: fsl_aud2htx: Add error handler for pm_runtime_enable Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 07/22] scsi: lpfc: Return DID_TRANSPORT_DISRUPTED instead of DID_REQUEUE Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 08/22] rxrpc: Fix local destruction being repeated Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 09/22] rxrpc: Fix calc of resend age Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 10/22] wifi: mac80211_hwsim: check length for virtio packets Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 11/22] ALSA: hda/sigmatel: Keep power up while beep is enabled Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 12/22] erofs: avoid the potentially wrong m_plen for big pcluster Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 13/22] ALSA: hda/tegra: Align BDL entry to 4KB boundary Sasha Levin
2022-09-14 9:00 ` Sasha Levin [this message]
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 15/22] drm/ttm: update bulk move object of ghost BO Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 16/22] net: usb: qmi_wwan: add Quectel RM520N Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 17/22] afs: Return -EAGAIN, not -EREMOTEIO, when a file already locked Sasha Levin
2022-09-14 9:00 ` [PATCH AUTOSEL 5.19 18/22] scsi: mpt3sas: Fix use-after-free warning Sasha Levin
2022-09-14 9:01 ` [PATCH AUTOSEL 5.19 19/22] MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping() Sasha Levin
2022-09-14 9:01 ` [PATCH AUTOSEL 5.19 20/22] drm/amdgpu: prevent toc firmware memory leak Sasha Levin
2022-09-14 9:01 ` [PATCH AUTOSEL 5.19 21/22] drm/panfrost: devfreq: set opp to the recommended one to configure regulator Sasha Levin
2022-09-14 9:01 ` [PATCH AUTOSEL 5.19 22/22] mksysmap: Fix the mismatch of 'L0' symbols in System.map Sasha Levin
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