KASAN: slab-out-of-bounds Write in usb_hcd_poll_rh

KASAN: slab-out-of-bounds Write in usb_hcd_poll_rh_status (2)
Status: upstream: reported on 2020/09/08 07:37
Reported-by: syzbot+3ae6a2b06f131ab9849f@syzkaller.appspotmail.com
First crash: 139d, last: 6d12h

similar bugs (3):
Kernel	Title	Count	Last	Reported	Patched	Status
linux-4.14	KASAN: slab-out-of-bounds Write in usb_hcd_poll_rh_status	1	14d	14d	0/1	upstream: reported on 2021/01/05 09:57
linux-4.19	KASAN: slab-out-of-bounds Write in usb_hcd_poll_rh_status	2	137d	139d	0/1	auto-closed as invalid on 2021/01/02 08:21
upstream	KASAN: slab-out-of-bounds Write in usb_hcd_poll_rh_status	3	503d	509d	0/17	auto-closed as invalid on 2020/01/01 21:24

Sample crash report:

==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:447 [inline]
BUG: KASAN: slab-out-of-bounds in usb_hcd_poll_rh_status+0x376/0x780 drivers/usb/core/hcd.c:774
Write of size 2 at addr ffff88801c30c190 by task syz-fuzzer/8470

CPU: 1 PID: 8470 Comm: syz-fuzzer Not tainted 5.11.0-rc3-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
 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:230
 __kasan_report mm/kasan/report.c:396 [inline]
 kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413
 check_memory_region_inline mm/kasan/generic.c:179 [inline]
 check_memory_region+0x13d/0x180 mm/kasan/generic.c:185
 memcpy+0x39/0x60 mm/kasan/shadow.c:65
 memcpy include/linux/string.h:447 [inline]
 usb_hcd_poll_rh_status+0x376/0x780 drivers/usb/core/hcd.c:774
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
 __do_softirq+0x2bc/0xa29 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+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:226 [inline]
 __irq_exit_rcu kernel/softirq.c:420 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:199
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 de 13 5d f8 48 89 ef e8 a6 c8 5d f8 e8 f1 ea 7c f8 fb bf 01 00 00 00 <e8> 56 cf 51 f8 65 8b 05 5f 3e 06 77 85 c0 74 02 5d c3 e8 cb 93 04
RSP: 0018:ffffc900017ffb58 EFLAGS: 00000202
RAX: 000000000030787f RBX: 0000000000000000 RCX: 1ffffffff1a067d1
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffff8880b9f34c40 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff81789c78 R11: 000000000000003f R12: ffff8880b9f34c40
R13: ffff88807285d340 R14: 0000000000000000 R15: ffff888021831bc0
 finish_lock_switch kernel/sched/core.c:4065 [inline]
 finish_task_switch.isra.0+0x158/0x7e0 kernel/sched/core.c:4182
 context_switch kernel/sched/core.c:4316 [inline]
 __schedule+0x914/0x21a0 kernel/sched/core.c:5064
 schedule+0xcf/0x270 kernel/sched/core.c:5143
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x268/0x6a0 kernel/time/hrtimer.c:1878
 hrtimer_nanosleep+0x1f9/0x430 kernel/time/hrtimer.c:1931
 __do_sys_nanosleep kernel/time/hrtimer.c:1965 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1952 [inline]
 __x64_sys_nanosleep+0x1dc/0x260 kernel/time/hrtimer.c:1952
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x46607d
Code: 8b 44 24 20 b9 40 42 0f 00 f7 f1 48 89 04 24 b8 e8 03 00 00 f7 e2 48 89 44 24 08 48 89 e7 be 00 00 00 00 b8 23 00 00 00 0f 05 <48> 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc cc cc cc b8 ba 00
RSP: 002b:000000c00003df18 EFLAGS: 00000212 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 000000000046607d
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000c00003df18
RBP: 000000c00003df28 R08: 000000000009863f R09: 00007ffc8feff090
R10: 000000000001bc0c R11: 0000000000000212 R12: 00000000004388f0
R13: 0000000000000000 R14: 0000000000b3591c R15: 0000000000000000

Allocated by task 24027:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:401 [inline]
 ____kasan_kmalloc.constprop.0+0x82/0xa0 mm/kasan/common.c:429
 kmalloc include/linux/slab.h:557 [inline]
 proc_do_submiturb+0x2a69/0x3600 drivers/usb/core/devio.c:1733
 proc_submiturb drivers/usb/core/devio.c:1892 [inline]
 usbdev_do_ioctl drivers/usb/core/devio.c:2588 [inline]
 usbdev_ioctl+0x692/0x36c0 drivers/usb/core/devio.c:2708
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

The buggy address belongs to the object at ffff88801c30c190
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
 8-byte region [ffff88801c30c190, ffff88801c30c198)
The buggy address belongs to the page:
page:000000008fcbe67e refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c30c
flags: 0xfff00000000200(slab)
raw: 00fff00000000200 ffffea000043e180 0000000e0000000e ffff888010041c80
raw: 0000000000000000 0000000080660066 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88801c30c080: fc fc fc fc fb fc fc fc fc fb fc fc fc fc 00 fc
 ffff88801c30c100: fc fc fc fb fc fc fc fc fb fc fc fc fc 00 fc fc
>ffff88801c30c180: fc fc 01 fc fc fc fc fb fc fc fc fc 00 fc fc fc
                         ^
 ffff88801c30c200: fc fb fc fc fc fc fb fc fc fc fc 00 fc fc fc fc
 ffff88801c30c280: 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00
==================================================================

Crashes (4):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Maintainers
ci-upstream-kasan-gce-root	2021/01/12 23:39	upstream	e609571b	0cdd6185	.config	log	report	info	a.darwish@linutronix.de, allen.lkml@gmail.com, andreyknvl@google.com, dvyukov@google.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, romain.perier@gmail.com
ci-upstream-kasan-gce	2020/09/28 09:32	upstream	a1b8638b	6bfdbe89	.config	log	report	info	andreyknvl@google.com, dvyukov@google.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, noring@nocrew.org
ci-upstream-kasan-gce-root	2020/09/27 06:41	upstream	eeddbe68	5dd8aee8	.config	log	report	info	andreyknvl@google.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, noring@nocrew.org
ci-upstream-kasan-gce-root	2020/09/01 15:14	upstream	b51594df	d5a3ae1f	.config	log	report		akpm@linux-foundation.org, andreyknvl@google.com, dvyukov@google.com, gregkh@linuxfoundation.org, gustavoars@kernel.org, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, m.szyprowski@samsung.com, noring@nocrew.org