==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:181 [inline]
BUG: KASAN: use-after-free in usb_anchor_suspend_wakeups+0x24/0x40 drivers/usb/core/urb.c:940
Write of size 4 at addr ffff8880772e9110 by task kworker/0:6/3987
CPU: 0 PID: 3987 Comm: kworker/0:6 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: usb_hub_wq hub_event
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
print_address_description+0x63/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_inc include/linux/atomic/atomic-instrumented.h:181 [inline]
usb_anchor_suspend_wakeups+0x24/0x40 drivers/usb/core/urb.c:940
__usb_hcd_giveback_urb+0x25d/0x530 drivers/usb/core/hcd.c:1661
dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1987
call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451
expire_timers kernel/time/timer.c:1496 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1767
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
handle_softirqs+0x3a7/0x930 kernel/softirq.c:558
__do_softirq kernel/softirq.c:592 [inline]
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x157/0x240 kernel/softirq.c:641
irq_exit_rcu+0x5/0x20 kernel/softirq.c:653
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:console_unlock+0xe53/0x12b0 kernel/printk/printk.c:2749
Code: 00 48 83 7c 24 18 00 75 19 e8 f9 fc 19 00 eb 18 e8 f2 fc 19 00 e8 ed ef cd 08 48 83 7c 24 18 00 74 e7 e8 e0 fc 19 00 fb 31 ff <44> 89 f6 e8 35 00 1a 00 31 db 45 85 f6 0f 95 c0 89 c1 0a 4c 24 17
RSP: 0018:ffffc90003547260 EFLAGS: 00000246
RAX: ffffffff81665d90 RBX: 0000000000000000 RCX: ffff888029cc9dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900035474f0 R08: ffffffff81665d5b R09: fffffbfff20e2419
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1a4c616
R13: ffffffff8d2630e8 R14: 0000000000000000 R15: dffffc0000000000
vprintk_emit+0xbf/0x150 kernel/printk/printk.c:2274
dev_vprintk_emit+0x2aa/0x330 drivers/base/core.c:4621
dev_printk_emit+0xd9/0x120 drivers/base/core.c:4632
_dev_info+0x11e/0x170 drivers/base/core.c:4690
usb_disconnect+0xde/0x8c0 drivers/usb/core/hub.c:2230
hub_port_connect drivers/usb/core/hub.c:5299 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5595 [inline]
port_event drivers/usb/core/hub.c:5741 [inline]
hub_event+0x1d58/0x54c0 drivers/usb/core/hub.c:5823
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
process_scheduled_works kernel/workqueue.c:2373 [inline]
worker_thread+0xdcf/0x1280 kernel/workqueue.c:2459
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Allocated by task 4234:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
kasan_kmalloc include/linux/kasan.h:264 [inline]
kmem_cache_alloc_trace+0x143/0x290 mm/slub.c:3247
kmalloc include/linux/slab.h:591 [inline]
kzalloc include/linux/slab.h:721 [inline]
usbtmc_open+0x8f/0x880 drivers/usb/class/usbtmc.c:175
usb_open+0x21a/0x2f0 drivers/usb/core/file.c:48
chrdev_open+0x54a/0x630 fs/char_dev.c:414
do_dentry_open+0x807/0xfb0 fs/open.c:826
do_open fs/namei.c:3608 [inline]
path_openat+0x2705/0x2f20 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Freed by task 4234:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1705 [inline]
slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
slab_free mm/slub.c:3499 [inline]
kfree+0xf1/0x270 mm/slub.c:4559
usbtmc_release+0x24b/0x280 drivers/usb/class/usbtmc.c:261
__fput+0x3fe/0x8e0 fs/file_table.c:280
task_work_run+0x129/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
The buggy address belongs to the object at ffff8880772e9000
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
1024-byte region [ffff8880772e9000, ffff8880772e9400)
The buggy address belongs to the page:
page:ffffea0001dcba00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x772e8
head:ffffea0001dcba00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 0000000100000001 ffff888017041dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 3884, ts 72783958626, free_ts 72776517521
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
__alloc_pages+0x272/0x700 mm/page_alloc.c:5423
alloc_slab_page mm/slub.c:1775 [inline]
allocate_slab mm/slub.c:1912 [inline]
new_slab+0xbb/0x4b0 mm/slub.c:1975
___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
__slab_alloc mm/slub.c:3095 [inline]
slab_alloc_node mm/slub.c:3186 [inline]
__kmalloc_node+0x1fa/0x390 mm/slub.c:4451
kmalloc_node include/linux/slab.h:614 [inline]
kzalloc_node include/linux/slab.h:732 [inline]
qdisc_alloc+0x95/0xaf0 net/sched/sch_generic.c:888
qdisc_create_dflt+0x5e/0x460 net/sched/sch_generic.c:950
attach_one_default_qdisc net/sched/sch_generic.c:1113 [inline]
netdev_for_each_tx_queue include/linux/netdevice.h:2379 [inline]
attach_default_qdiscs net/sched/sch_generic.c:1131 [inline]
dev_activate+0x33c/0x12c0 net/sched/sch_generic.c:1190
__dev_open+0x3eb/0x500 net/core/dev.c:1515
__dev_change_flags+0x1db/0x6e0 net/core/dev.c:8813
dev_change_flags+0x87/0x190 net/core/dev.c:8884
do_setlink+0xc21/0x3d80 net/core/rtnetlink.c:2747
__rtnl_newlink net/core/rtnetlink.c:3418 [inline]
rtnl_newlink+0x17d6/0x2070 net/core/rtnetlink.c:3540
rtnetlink_rcv_msg+0x993/0xee0 net/core/rtnetlink.c:5618
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2503
netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1352
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396
free_slab mm/slub.c:2015 [inline]
discard_slab mm/slub.c:2021 [inline]
__unfreeze_partials+0x1b7/0x210 mm/slub.c:2507
put_cpu_partial+0x132/0x1a0 mm/slub.c:2587
do_slab_free mm/slub.c:3487 [inline]
___cache_free+0xe3/0x100 mm/slub.c:3506
qlist_free_all+0x36/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3220 [inline]
slab_alloc mm/slub.c:3228 [inline]
__kmalloc+0x120/0x300 mm/slub.c:4403
kmalloc include/linux/slab.h:596 [inline]
kzalloc include/linux/slab.h:721 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x26b/0x530 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x5a2/0x5e0 security/tomoyo/realpath.c:288
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_number_perm+0x225/0x810 security/tomoyo/file.c:723
security_file_ioctl+0x6d/0xa0 security/security.c:1555
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x47/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
Memory state around the buggy address:
ffff8880772e9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880772e9080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880772e9100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880772e9180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880772e9200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
0: 00 48 83 add %cl,-0x7d(%rax)
3: 7c 24 jl 0x29
5: 18 00 sbb %al,(%rax)
7: 75 19 jne 0x22
9: e8 f9 fc 19 00 call 0x19fd07
e: eb 18 jmp 0x28
10: e8 f2 fc 19 00 call 0x19fd07
15: e8 ed ef cd 08 call 0x8cdf007
1a: 48 83 7c 24 18 00 cmpq $0x0,0x18(%rsp)
20: 74 e7 je 0x9
22: e8 e0 fc 19 00 call 0x19fd07
27: fb sti
28: 31 ff xor %edi,%edi
* 2a: 44 89 f6 mov %r14d,%esi <-- trapping instruction
2d: e8 35 00 1a 00 call 0x1a0067
32: 31 db xor %ebx,%ebx
34: 45 85 f6 test %r14d,%r14d
37: 0f 95 c0 setne %al
3a: 89 c1 mov %eax,%ecx
3c: 0a 4c 24 17 or 0x17(%rsp),%cl