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BUG: KASAN: use-after-free in htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline]
BUG: KASAN: use-after-free in ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443
Write of size 2 at addr ffff8881d96aa520 by task systemd-udevd/3414

CPU: 1 PID: 3414 Comm: systemd-udevd Not tainted 5.7.0-rc5-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:77 [inline]
 dump_stack+0xef/0x16e lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0xd3/0x314 mm/kasan/report.c:382
 __kasan_report.cold+0x37/0x92 mm/kasan/report.c:511
 kasan_report+0x33/0x50 mm/kasan/common.c:625
 htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline]
 ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443
 ath9k_hif_usb_reg_in_cb+0x1c0/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:718
 __usb_hcd_giveback_urb+0x1f2/0x470 drivers/usb/core/hcd.c:1648
 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1713
 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1966
 call_timer_fn+0x1ac/0x700 kernel/time/timer.c:1405
 expire_timers kernel/time/timer.c:1450 [inline]
 __run_timers kernel/time/timer.c:1774 [inline]
 __run_timers kernel/time/timer.c:1741 [inline]
 run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1787
 __do_softirq+0x21e/0x9aa kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x178/0x1a0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:546 [inline]
 smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1140
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline]
RIP: 0010:compound_head include/linux/page-flags.h:182 [inline]
RIP: 0010:mark_page_accessed+0x16/0x630 mm/swap.c:375
Code: e9 5a fe ff ff 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 55 48 89 fd 53 4c 8d 65 08 e8 7a dd eb ff <4c> 89 e2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f
RSP: 0018:ffff8881c5cf7968 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8881d93998c0 RBX: 0000000000000000 RCX: ffffffff815cfeaa
RDX: 0000000000000000 RSI: ffffffff81545ff6 RDI: ffffea0007693380
RBP: ffffea0007693380 R08: ffff8881d93998c0 R09: ffffed103b273319
R10: ffff8881d93998c7 R11: ffffed103b273318 R12: ffffea0007693388
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffea0007693380
 zap_pte_range mm/memory.c:1089 [inline]
 zap_pmd_range mm/memory.c:1196 [inline]
 zap_pud_range mm/memory.c:1225 [inline]
 zap_p4d_range mm/memory.c:1246 [inline]
 unmap_page_range+0xcfc/0x2120 mm/memory.c:1267
 unmap_single_vma+0x196/0x300 mm/memory.c:1312
 unmap_vmas+0x174/0x2f0 mm/memory.c:1344
 exit_mmap+0x278/0x4d0 mm/mmap.c:3150
 __mmput kernel/fork.c:1085 [inline]
 mmput+0xce/0x3d0 kernel/fork.c:1106
 exit_mm kernel/exit.c:480 [inline]
 do_exit+0xa83/0x2c80 kernel/exit.c:783
 do_group_exit+0x125/0x340 kernel/exit.c:894
 __do_sys_exit_group kernel/exit.c:905 [inline]
 __se_sys_exit_group kernel/exit.c:903 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:903
 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7f60ebf45618
Code: Bad RIP value.
RSP: 002b:00007fff42ea0738 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fff42ea0800 RCX: 00007f60ebf45618
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00007fff42ea08b0 R08: 00000000000000e7 R09: fffffffffffffe50
R10: 0000556e072d1150 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000e

Allocated by task 95:
 save_stack+0x1b/0x40 mm/kasan/common.c:49
 set_track mm/kasan/common.c:57 [inline]
 __kasan_kmalloc mm/kasan/common.c:495 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:468
 kmalloc include/linux/slab.h:555 [inline]
 kzalloc include/linux/slab.h:669 [inline]
 usb_create_ep_devs+0x49/0x2a0 drivers/usb/core/endpoint.c:183
 usb_new_device.cold+0xbbd/0xf6e drivers/usb/core/hub.c:2581
 hub_port_connect drivers/usb/core/hub.c:5207 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5347 [inline]
 port_event drivers/usb/core/hub.c:5493 [inline]
 hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5575
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x326/0x430 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351

Freed by task 95:
 save_stack+0x1b/0x40 mm/kasan/common.c:49
 set_track mm/kasan/common.c:57 [inline]
 kasan_set_free_info mm/kasan/common.c:317 [inline]
 __kasan_slab_free+0x117/0x160 mm/kasan/common.c:456
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1488 [inline]
 slab_free mm/slub.c:3045 [inline]
 kfree+0xd5/0x300 mm/slub.c:4026
 device_release+0x71/0x200 drivers/base/core.c:1375
 kobject_cleanup lib/kobject.c:693 [inline]
 kobject_release lib/kobject.c:722 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x256/0x550 lib/kobject.c:739
 put_device drivers/base/core.c:2637 [inline]
 device_unregister+0x34/0xc0 drivers/base/core.c:2748
 usb_remove_ep_devs+0x3e/0x80 drivers/usb/core/endpoint.c:215
 usb_disconnect+0x4bb/0x900 drivers/usb/core/hub.c:2235
 hub_port_connect drivers/usb/core/hub.c:5058 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5347 [inline]
 port_event drivers/usb/core/hub.c:5493 [inline]
 hub_event+0x1abf/0x43c0 drivers/usb/core/hub.c:5575
 process_one_work+0x965/0x1630 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x326/0x430 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351

The buggy address belongs to the object at ffff8881d96aa000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1312 bytes inside of
 2048-byte region [ffff8881d96aa000, ffff8881d96aa800)
The buggy address belongs to the page:
page:ffffea000765aa00 refcount:1 mapcount:0 mapping:00000000446699f6 index:0x0 head:ffffea000765aa00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c000
raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881d96aa400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881d96aa480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881d96aa500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff8881d96aa580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881d96aa600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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