linux-kernel - [syzbot] [sound?] [usb?] UBSAN: shift-out-of-bounds in parse_audio

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Message-ID: <0000000000000adac5061d3c7355@google.com>
Date: Sun, 14 Jul 2024 15:15:25 -0700
From: syzbot <syzbot+78d5b129a762182225aa@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, linux-sound@...r.kernel.org, 
	linux-usb@...r.kernel.org, perex@...ex.cz, syzkaller-bugs@...glegroups.com, 
	tiwai@...e.com
Subject: [syzbot] [sound?] [usb?] UBSAN: shift-out-of-bounds in parse_audio_unit

Hello,

syzbot found the following issue on:

HEAD commit:    a19ea421490d Merge tag 'platform-drivers-x86-v6.10-6' of g..
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=173c2e9e980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b63b35269462a0e0
dashboard link: https://syzkaller.appspot.com/bug?extid=78d5b129a762182225aa
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15773776980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1373427e980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ea993841f842/disk-a19ea421.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/eef900c478c0/vmlinux-a19ea421.xz
kernel image: https://storage.googleapis.com/syzbot-assets/deecea0553fd/bzImage-a19ea421.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+78d5b129a762182225aa@...kaller.appspotmail.com

usb 1-1: 0:2 : does not exist
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in sound/usb/mixer.c:2057:20
shift exponent 42 is too large for 32-bit type 'int'
CPU: 1 PID: 45 Comm: kworker/1:1 Not tainted 6.10.0-rc7-syzkaller-00025-ga19ea421490d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468
 parse_audio_feature_unit sound/usb/mixer.c:2057 [inline]
 parse_audio_unit+0x277d/0x3f10 sound/usb/mixer.c:2907
 snd_usb_mixer_controls sound/usb/mixer.c:3252 [inline]
 snd_usb_create_mixer+0x1365/0x2fa0 sound/usb/mixer.c:3599
 usb_audio_probe+0x1688/0x2100 sound/usb/card.c:888
 usb_probe_interface+0x645/0xbb0 drivers/usb/core/driver.c:399
 really_probe+0x2b8/0xad0 drivers/base/dd.c:656
 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798
 driver_probe_device+0x50/0x430 drivers/base/dd.c:828
 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956
 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457
 __device_attach+0x333/0x520 drivers/base/dd.c:1028
 bus_probe_device+0x189/0x260 drivers/base/bus.c:532
 device_add+0x856/0xbf0 drivers/base/core.c:3679
 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254
 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:294
 really_probe+0x2b8/0xad0 drivers/base/dd.c:656
 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798
 driver_probe_device+0x50/0x430 drivers/base/dd.c:828
 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956
 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457
 __device_attach+0x333/0x520 drivers/base/dd.c:1028
 bus_probe_device+0x189/0x260 drivers/base/bus.c:532
 device_add+0x856/0xbf0 drivers/base/core.c:3679
 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651
 hub_port_connect drivers/usb/core/hub.c:5521 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5903
 process_one_work kernel/workqueue.c:3248 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
---[ end trace ]---


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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