UBSAN: shift-out-of-bounds in mceusb_dev

UBSAN: shift-out-of-bounds in mceusb_dev_printdata
Status: upstream: reported C repro on 2020/12/16 16:14
Reported-by: syzbot+6d31bf169a8265204b8d@syzkaller.appspotmail.com
First crash: 39d, last: 13d

Patch testing requests:
Created	Duration	User	Patch	Repo	Result
2021/01/08 14:02	8m	anant.thazhemadam@gmail.com		upstream	report log

Sample crash report:

================================================================================
UBSAN: shift-out-of-bounds in drivers/media/rc/mceusb.c:704:13
shift exponent 230 is too large for 32-bit type 'unsigned int'
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148
 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395
 mceusb_dev_printdata.cold+0x19/0x1e drivers/media/rc/mceusb.c:704
 mceusb_process_ir_data drivers/media/rc/mceusb.c:1275 [inline]
 mceusb_dev_recv+0x3cb/0x1990 drivers/media/rc/mceusb.c:1376
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657
 usb_hcd_giveback_urb+0x38c/0x430 drivers/usb/core/hcd.c:1728
 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971
 call_timer_fn+0x1a5/0x690 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x692/0xa50 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0x80/0x120 kernel/time/timer.c:1744
 __do_softirq+0x1b7/0x9c5 kernel/softirq.c:343
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu+0x119/0x1b0 kernel/softirq.c:420
 irq_exit_rcu+0x5/0x10 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:169 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline]
RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 drivers/acpi/processor_idle.c:516
Code: 8d 61 7f fb 84 db 75 ac e8 04 5b 7f fb e8 4f 0f 85 fb e9 0c 00 00 00 e8 f5 5a 7f fb 0f 00 2d ce 86 87 00 e8 e9 5a 7f fb fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 c4 62 7f fb 48 85 db
RSP: 0018:ffffffff87407d60 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffffff87431940 RSI: ffffffff85c0eb77 RDI: ffffffff85c0eb61
RBP: ffff8881037c3064 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8145fae8 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8881037c3000 R14: ffff8881037c3064 R15: ffff888105c7d804
 acpi_idle_enter+0x355/0x4f0 drivers/acpi/processor_idle.c:647
 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x3df/0x580 kernel/sched/idle.c:299
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:396
 start_kernel+0x498/0x4b9 init/main.c:1061
 secondary_startup_64_no_verify+0xb0/0xbb
================================================================================

Crashes (116):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Maintainers
ci2-upstream-usb	2020/12/16 11:09	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	5e60366d	649595c6	.config	log	report	syz	C		linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci-upstream-kasan-gce	2020/12/17 07:05	upstream	5e60366d	04201c06	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/11 08:32	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/11 05:23	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 19:56	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 17:43	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 16:05	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 11:49	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 09:35	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 06:29	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 03:42	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/10 02:01	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2021/01/09 23:33	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	2c1f2513	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 23:35	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 21:32	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 18:59	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 17:35	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 16:24	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 15:06	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 13:56	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f838f8d2	2242f77f	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 10:01	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 06:21	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 03:26	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/27 01:48	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 22:27	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 20:11	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 17:45	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 11:44	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 09:50	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 06:29	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 05:28	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/26 02:53	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 22:46	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	821e0b09	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 20:36	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	b982b3ea	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 14:25	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	b982b3ea	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 09:24	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	b982b3ea	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 07:30	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 04:57	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 03:06	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/25 01:16	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/24 13:54	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/24 11:50	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/24 10:25	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/24 07:20	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/24 01:59	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/23 22:09	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/23 16:35	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3644e2d2	c2c1d1dd	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org
ci2-upstream-usb	2020/12/16 10:15	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	5e60366d	649595c6	.config	log	report			info	linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, sean@mess.org