==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/fortify-string.h:225 [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 ffff8880779b6100 by task syz-executor.2/3636
CPU: 1 PID: 3636 Comm: syz-executor.2 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description.constprop.0.cold+0x8d/0x2ed mm/kasan/report.c:247
__kasan_report mm/kasan/report.c:433 [inline]
kasan_report.cold+0x83/0xdf mm/kasan/report.c:450
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
memcpy+0x39/0x60 mm/kasan/shadow.c:66
memcpy include/linux/fortify-string.h:225 [inline]
usb_hcd_poll_rh_status+0x376/0x780 drivers/usb/core/hcd.c:774
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 7a be 13 f8 48 89 ef e8 c2 34 14 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 03 fd 06 f8 65 8b 05 fc 49 ba 76 85 c0 74 0a 5b 5d c3 e8 60 f7
RSP: 0018:ffffc900028f7c90 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1b21da1
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffffff906c5c30 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817d1da8 R11: 000000000008808a R12: ffff888018f03ac0
R13: dffffc0000000000 R14: 1ffff9200051ef97 R15: ffffffff89ad4fe0
debug_object_activate+0x287/0x3e0 lib/debugobjects.c:689
debug_object_activate+0x337/0x3e0 lib/debugobjects.c:707
debug_rcu_head_queue kernel/rcu/rcu.h:176 [inline]
__call_rcu kernel/rcu/tree.c:2969 [inline]
call_rcu+0x2c/0x740 kernel/rcu/tree.c:3065
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4634cafdb4
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007fffbb788280 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: fffffffffffffffe RBX: 00007fffbb788380 RCX: 00007f4634cafdb4
RDX: 0000000000000002 RSI: 00007fffbb7883c0 RDI: 00000000ffffff9c
RBP: 00007fffbb7883c0 R08: 0000000000000000 R09: 00007fffbb788190
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00000000000bc1a7 R14: 000000000000000c R15: 00007fffbb7883c0
Allocated by task 13053:
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc mm/kasan/common.c:513 [inline]
____kasan_kmalloc mm/kasan/common.c:472 [inline]
__kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:522
kasan_kmalloc include/linux/kasan.h:269 [inline]
__do_kmalloc mm/slab.c:3702 [inline]
__kmalloc+0x209/0x4d0 mm/slab.c:3711
kmalloc include/linux/slab.h:595 [inline]
proc_do_submiturb+0x2a49/0x35f0 drivers/usb/core/devio.c:1816
proc_submiturb drivers/usb/core/devio.c:1975 [inline]
usbdev_do_ioctl drivers/usb/core/devio.c:2671 [inline]
usbdev_ioctl+0x692/0x36c0 drivers/usb/core/devio.c:2791
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
The buggy address belongs to the object at ffff8880779b6100
which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
32-byte region [ffff8880779b6100, ffff8880779b6120)
The buggy address belongs to the page:
page:ffffea0001de6d80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880779b6fc1 pfn:0x779b6
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea0001218808 ffffea00006a3948 ffff888010c40100
raw: ffff8880779b6fc1 ffff8880779b6000 000000010000001b 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x3420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 10424, ts 614820311754, free_ts 555021014526
prep_new_page mm/page_alloc.c:2418 [inline]
get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4149
__alloc_pages+0x1b2/0x500 mm/page_alloc.c:5369
__alloc_pages_node include/linux/gfp.h:570 [inline]
kmem_getpages mm/slab.c:1377 [inline]
cache_grow_begin+0x75/0x470 mm/slab.c:2593
cache_alloc_refill+0x27f/0x380 mm/slab.c:2965
____cache_alloc mm/slab.c:3048 [inline]
____cache_alloc mm/slab.c:3031 [inline]
__do_cache_alloc mm/slab.c:3275 [inline]
slab_alloc mm/slab.c:3316 [inline]
__do_kmalloc mm/slab.c:3700 [inline]
__kmalloc_track_caller+0x3b0/0x4d0 mm/slab.c:3717
kstrdup+0x36/0x70 mm/util.c:60
kstrdup_const+0x53/0x80 mm/util.c:83
__kernfs_new_node+0x9d/0x8b0 fs/kernfs/dir.c:581
kernfs_new_node+0x93/0x120 fs/kernfs/dir.c:647
__kernfs_create_file+0x51/0x350 fs/kernfs/file.c:985
sysfs_add_file_mode_ns+0x20f/0x3f0 fs/sysfs/file.c:294
create_files fs/sysfs/group.c:64 [inline]
internal_create_group+0x322/0xb10 fs/sysfs/group.c:148
internal_create_groups.part.0+0x90/0x140 fs/sysfs/group.c:188
internal_create_groups fs/sysfs/group.c:184 [inline]
sysfs_create_groups+0x25/0x50 fs/sysfs/group.c:214
setup_gid_attrs drivers/infiniband/core/sysfs.c:1168 [inline]
ib_setup_port_attrs+0x3e7/0x5c0 drivers/infiniband/core/sysfs.c:1440
add_one_compat_dev+0x517/0x7f0 drivers/infiniband/core/device.c:968
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1338 [inline]
free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1389
free_unref_page_prepare mm/page_alloc.c:3309 [inline]
free_unref_page+0x19/0x690 mm/page_alloc.c:3388
slab_destroy mm/slab.c:1627 [inline]
slabs_destroy+0x89/0xc0 mm/slab.c:1647
cache_flusharray mm/slab.c:3418 [inline]
___cache_free+0x4cc/0x610 mm/slab.c:3480
qlink_free mm/kasan/quarantine.c:146 [inline]
qlist_free_all+0x4e/0x110 mm/kasan/quarantine.c:165
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
__kasan_slab_alloc+0x97/0xb0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc mm/slab.c:3323 [inline]
kmem_cache_alloc+0x265/0x560 mm/slab.c:3507
getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
getname_flags+0x9a/0xe0 include/linux/audit.h:323
user_path_at_empty+0x2b/0x60 fs/namei.c:2800
user_path_at include/linux/namei.h:57 [inline]
vfs_statx+0x142/0x390 fs/stat.c:221
vfs_fstatat fs/stat.c:243 [inline]
__do_sys_newfstatat+0x96/0x120 fs/stat.c:412
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Memory state around the buggy address:
ffff8880779b6000: fa fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
ffff8880779b6080: 00 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc
>ffff8880779b6100: 01 fc fc fc fc fc fc fc 00 00 00 00 fc fc fc fc
^
ffff8880779b6180: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
ffff8880779b6200: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 74 24 je 0x26
2: 10 e8 adc %ch,%al
4: 7a be jp 0xffffffc4
6: 13 f8 adc %eax,%edi
8: 48 89 ef mov %rbp,%rdi
b: e8 c2 34 14 f8 callq 0xf81434d2
10: 81 e3 00 02 00 00 and $0x200,%ebx
16: 75 25 jne 0x3d
18: 9c pushfq
19: 58 pop %rax
1a: f6 c4 02 test $0x2,%ah
1d: 75 2d jne 0x4c
1f: 48 85 db test %rbx,%rbx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 03 fd 06 f8 callq 0xf806fd32 <-- trapping instruction
2f: 65 8b 05 fc 49 ba 76 mov %gs:0x76ba49fc(%rip),%eax # 0x76ba4a32
36: 85 c0 test %eax,%eax
38: 74 0a je 0x44
3a: 5b pop %rbx
3b: 5d pop %rbp
3c: c3 retq
3d: e8 .byte 0xe8
3e: 60 (bad)
3f: f7 .byte 0xf7