==================================================================
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 ffff8880840cfd48 by task syz-executor.3/19627
CPU: 0 PID: 19627 Comm: syz-executor.3 Not tainted 5.16.0-rc1-next-20211118-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/0x320 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:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
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:__sanitizer_cov_trace_const_cmp8+0x69/0x70 kernel/kcov.c:296
Code: 3c cd 28 00 00 00 48 39 fe 72 1f 48 83 c2 01 4c 89 44 38 e8 48 c7 44 38 e0 07 00 00 00 48 89 4c 38 f0 4e 89 54 c8 20 48 89 10 66 0f 1f 44 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 89 f1 65
RSP: 0018:ffffc90005c57a20 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00fff0000000203a RCX: 00fff0000000203a
RDX: 0000000000000000 RSI: ffff8880806657c0 RDI: 0000000000000003
RBP: ffffea00024eaf40 R08: ffffffffffffffff R09: 0000000000000000
R10: ffffffff81a03b02 R11: 0000000000000000 R12: 000000000000038c
R13: ffffea00024eaf40 R14: 0000000000000000 R15: 0000000000000000
PageHead include/linux/page-flags.h:687 [inline]
compound_nr include/linux/mm.h:962 [inline]
folio_nr_pages include/linux/mm.h:1643 [inline]
folio_file_page include/linux/pagemap.h:570 [inline]
pagecache_get_page+0xc2/0x1a0 mm/folio-compat.c:128
find_get_page_flags include/linux/pagemap.h:445 [inline]
__find_get_block_slow fs/buffer.c:202 [inline]
__find_get_block fs/buffer.c:1345 [inline]
__find_get_block+0x4ba/0xdb0 fs/buffer.c:1339
sb_find_get_block include/linux/buffer_head.h:340 [inline]
recently_deleted fs/ext4/ialloc.c:689 [inline]
find_inode_bit+0x230/0x580 fs/ext4/ialloc.c:731
__ext4_new_inode+0xc64/0x5ba0 fs/ext4/ialloc.c:1066
ext4_symlink+0x485/0xd40 fs/ext4/namei.c:3293
vfs_symlink fs/namei.c:4248 [inline]
vfs_symlink+0x45d/0x6c0 fs/namei.c:4233
do_symlinkat+0x261/0x2e0 fs/namei.c:4277
__do_sys_symlink fs/namei.c:4299 [inline]
__se_sys_symlink fs/namei.c:4297 [inline]
__x64_sys_symlink+0x75/0x90 fs/namei.c:4297
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
RIP: 0033:0x7f2ba7c203f7
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd92277388 EFLAGS: 00000202 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2ba7c203f7
RDX: ffffffffffffffbc RSI: 00007f2ba7c7b00e RDI: 00007f2ba7c7a1dd
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd92276e00
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffd92277450
Allocated by task 19626:
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+0xa9/0xd0 mm/kasan/common.c:522
kmalloc include/linux/slab.h:595 [inline]
proc_do_submiturb+0x2a7d/0x3630 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 ffff8880840cfd48
which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes inside of
8-byte region [ffff8880840cfd48, ffff8880840cfd50)
The buggy address belongs to the page:
page:ffffea00021033c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x840cf
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea00006b8b80 dead000000000002 ffff888010c41280
raw: 0000000000000000 0000000080660066 00000001ffffffff 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 0x12c00(GFP_NOIO|__GFP_NOWARN|__GFP_NORETRY), pid 9164, ts 232251446859, free_ts 232204870130
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+0x1a7/0x300 mm/mempolicy.c:2191
alloc_slab_page mm/slub.c:1793 [inline]
allocate_slab mm/slub.c:1930 [inline]
new_slab+0x32d/0x4a0 mm/slub.c:1993
___slab_alloc+0x918/0xfe0 mm/slub.c:3022
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
slab_alloc_node mm/slub.c:3200 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc_trace+0x289/0x2c0 mm/slub.c:3259
kmalloc include/linux/slab.h:590 [inline]
usb_control_msg+0xb9/0x4a0 drivers/usb/core/message.c:143
get_port_status drivers/usb/core/hub.c:580 [inline]
hub_ext_port_status+0x112/0x450 drivers/usb/core/hub.c:597
hub_port_status drivers/usb/core/hub.c:619 [inline]
hub_activate+0x4da/0x1a20 drivers/usb/core/hub.c:1126
hub_resume+0xab/0x3e0 drivers/usb/core/hub.c:3885
usb_resume_interface.part.0.isra.0+0x271/0x360 drivers/usb/core/driver.c:1358
usb_resume_interface drivers/usb/core/driver.c:1518 [inline]
usb_resume_both+0x2a7/0x8d0 drivers/usb/core/driver.c:1518
__rpm_callback+0xc9/0x330 drivers/base/power/runtime.c:377
rpm_callback+0x1da/0x220 drivers/base/power/runtime.c:504
rpm_resume+0xf5d/0x1bd0 drivers/base/power/runtime.c:879
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
mm_free_pgd kernel/fork.c:647 [inline]
__mmdrop+0xcb/0x3f0 kernel/fork.c:749
mmdrop include/linux/sched/mm.h:49 [inline]
__mmput+0x3f1/0x4b0 kernel/fork.c:1174
mmput+0x56/0x60 kernel/fork.c:1185
exit_mm kernel/exit.c:507 [inline]
do_exit+0xb27/0x2b40 kernel/exit.c:819
do_group_exit+0x125/0x310 kernel/exit.c:929
get_signal+0x34c/0x28b0 kernel/signal.c:2837
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/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
Memory state around the buggy address:
ffff8880840cfc00: fc 00 fc fc fc fc fa fc fc fc fc fa fc fc fc fc
ffff8880840cfc80: fa fc fc fc fc fa fc fc fc fc fb fc fc fc fc fa
>ffff8880840cfd00: fc fc fc fc fa fc fc fc fc 01 fc fc fc fc 00 fc
^
ffff8880840cfd80: fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc
ffff8880840cfe00: fc fc 00 fc fc fc fc 00 fc fc fc fc fa fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 3c cd cmp $0xcd,%al
2: 28 00 sub %al,(%rax)
4: 00 00 add %al,(%rax)
6: 48 39 fe cmp %rdi,%rsi
9: 72 1f jb 0x2a
b: 48 83 c2 01 add $0x1,%rdx
f: 4c 89 44 38 e8 mov %r8,-0x18(%rax,%rdi,1)
14: 48 c7 44 38 e0 07 00 movq $0x7,-0x20(%rax,%rdi,1)
1b: 00 00
1d: 48 89 4c 38 f0 mov %rcx,-0x10(%rax,%rdi,1)
22: 4e 89 54 c8 20 mov %r10,0x20(%rax,%r9,8)
27: 48 89 10 mov %rdx,(%rax)
* 2a: c3 retq <-- trapping instruction
2b: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
31: 41 89 f8 mov %edi,%r8d
34: bf 03 00 00 00 mov $0x3,%edi
39: 4c 8b 14 24 mov (%rsp),%r10
3d: 89 f1 mov %esi,%ecx
3f: 65 gs