==================================================================
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 ffff8881d98462d0 by task systemd-cgroups/4789

CPU: 0 PID: 4789 Comm: systemd-cgroups Not tainted 5.7.0-rc6-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+0xd3/0x415 mm/kasan/report.c:382
 __kasan_report.cold+0x37/0x7d 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+0x29a/0x550 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716
 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1967
 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:up_write+0x0/0x470 kernel/locking/rwsem.c:1582
Code: e8 75 0c 44 00 e9 4d fe ff ff 48 89 ef e8 68 0c 44 00 e9 1d fe ff ff 4c 89 ef e8 5b 0c 44 00 e9 c2 fd ff ff 66 0f 1f 44 00 00 <41> 57 41 56 41 55 41 54 55 48 89 fd 48 83 c7 70 53 48 c7 c3 b0 9b
RSP: 0018:ffff8881c338fd78 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 00007fbd6f6db000 RBX: 1ffff11038671fb8 RCX: ffffffff815fc8cb
RDX: 0000000000000000 RSI: ffffffff815fc620 RDI: ffff8881d22965f8
RBP: ffff8881cb124780 R08: ffff8881d2988000 R09: fffffbfff0fd127d
R10: ffffffff87e893e7 R11: fffffbfff0fd127c R12: 0000000000000003
R13: 0000000000000012 R14: ffff8881c338fe00 R15: 00007fbd6f6db000
 vm_mmap_pgoff+0x1a2/0x1f0 mm/util.c:508
 ksys_mmap_pgoff+0x457/0x5b0 mm/mmap.c:1595
 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x7fbd70c4f30a
Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00
RSP: 002b:00007ffeaa9e2828 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd70c4f30a
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007fbd6f6db000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000007000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007fbd6f6db000
R13: 0000000000002000 R14: 0000000000000812 R15: 0000000000007000

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
 slab_post_alloc_hook mm/slab.h:586 [inline]
 slab_alloc_node mm/slub.c:2797 [inline]
 __kmalloc_node_track_caller+0xfc/0x400 mm/slub.c:4434
 __kmalloc_reserve.isra.0+0x39/0xe0 net/core/skbuff.c:142
 pskb_expand_head+0x148/0x1020 net/core/skbuff.c:1627
 netlink_trim+0x1ea/0x240 net/netlink/af_netlink.c:1285
 netlink_broadcast_filtered+0x5f/0xd40 net/netlink/af_netlink.c:1490
 netlink_broadcast net/netlink/af_netlink.c:1535 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0x90/0x250 net/netlink/af_netlink.c:2512
 rtnl_notify net/core/rtnetlink.c:737 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:3719 [inline]
 rtmsg_ifinfo_event.part.0+0xb6/0xe0 net/core/rtnetlink.c:3734
 rtmsg_ifinfo_event net/core/rtnetlink.c:3742 [inline]
 rtmsg_ifinfo+0x7f/0xa0 net/core/rtnetlink.c:3740
 register_netdevice+0xe69/0x10b0 net/core/dev.c:9439
 register_netdev+0x2d/0x50 net/core/dev.c:9518
 prism2sta_probe_usb.cold+0x1d0/0x49e drivers/staging/wlan-ng/prism2usb.c:114
 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 usb_set_configuration+0xed4/0x1850 drivers/usb/core/message.c:2032
 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241
 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 usb_new_device.cold+0x552/0xf6e drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5576
 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
 skb_free_head+0x8b/0xa0 net/core/skbuff.c:590
 skb_release_data+0x41f/0x7c0 net/core/skbuff.c:610
 skb_release_all+0x46/0x60 net/core/skbuff.c:664
 __kfree_skb net/core/skbuff.c:678 [inline]
 consume_skb net/core/skbuff.c:837 [inline]
 consume_skb+0xf3/0x3c0 net/core/skbuff.c:831
 netlink_broadcast_filtered+0x34f/0xd40 net/netlink/af_netlink.c:1513
 netlink_broadcast net/netlink/af_netlink.c:1535 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0x90/0x250 net/netlink/af_netlink.c:2512
 rtnl_notify net/core/rtnetlink.c:737 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:3719 [inline]
 rtmsg_ifinfo_event.part.0+0xb6/0xe0 net/core/rtnetlink.c:3734
 rtmsg_ifinfo_event net/core/rtnetlink.c:3742 [inline]
 rtmsg_ifinfo+0x7f/0xa0 net/core/rtnetlink.c:3740
 register_netdevice+0xe69/0x10b0 net/core/dev.c:9439
 register_netdev+0x2d/0x50 net/core/dev.c:9518
 prism2sta_probe_usb.cold+0x1d0/0x49e drivers/staging/wlan-ng/prism2usb.c:114
 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 usb_set_configuration+0xed4/0x1850 drivers/usb/core/message.c:2032
 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241
 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272
 really_probe+0x290/0xac0 drivers/base/dd.c:520
 driver_probe_device+0x223/0x350 drivers/base/dd.c:697
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x21a/0x390 drivers/base/dd.c:870
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1367/0x1c40 drivers/base/core.c:2538
 usb_new_device.cold+0x552/0xf6e drivers/usb/core/hub.c:2554
 hub_port_connect drivers/usb/core/hub.c:5208 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
 port_event drivers/usb/core/hub.c:5494 [inline]
 hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5576
 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 ffff8881d9846000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 720 bytes inside of
 2048-byte region [ffff8881d9846000, ffff8881d9846800)
The buggy address belongs to the page:
page:ffffea0007661000 refcount:1 mapcount:0 mapping:00000000117013f5 index:0x0 head:ffffea0007661000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 0000000000000000 0000000100000001 ffff8881da00c000
raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881d9846180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881d9846200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881d9846280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff8881d9846300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881d9846380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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