haley: skb 0xffff8881d25cc500, ath9k_wmi_ctrl_rx, 235
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BUG: KASAN: use-after-free in ath9k_wmi_ctrl_rx+0x5e/0x444 drivers/net/wireless/ath/ath9k/wmi.c:237
Read of size 1 at addr ffff8881d26ca17c by task kworker/0:1/12
CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events request_firmware_work_func
Call Trace:
__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:374
__kasan_report.cold+0x37/0x77 mm/kasan/report.c:506
kasan_report+0xe/0x20 mm/kasan/common.c:641
ath9k_wmi_ctrl_rx+0x5e/0x444 drivers/net/wireless/ath/ath9k/wmi.c:237
ath9k_htc_rx_msg+0x2d9/0xb00 drivers/net/wireless/ath/ath9k/htc_hst.c:462
ath9k_hif_usb_reg_in_cb+0x1a6/0x620 drivers/net/wireless/ath/ath9k/hif_usb.c:724
__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+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966
call_timer_fn+0x195/0x6f0 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1786
__do_softirq+0x21e/0x950 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:1146
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline]
RIP: 0010:console_unlock+0xa6b/0xca0 kernel/printk/printk.c:2481
Code: 00 89 ee 48 c7 c7 60 43 14 87 e8 10 c3 03 00 65 ff 0d c1 ed d8 7e e9 b5 f9 ff ff e8 0f 37 16 00 e8 0a 7f 1b 00 ff 74 24 30 9d fd fd ff ff e8 fb 36 16 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42
RSP: 0018:ffff8881da2277e0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881da2120cc
RBP: 0000000000000000 R08: ffff8881da211880 R09: fffffbfff1267085
R10: fffffbfff1267084 R11: ffffffff89338427 R12: ffffffff82a092f0
R13: ffffffff874d4830 R14: 000000000000004f R15: dffffc0000000000
vprintk_emit+0x171/0x3d0 kernel/printk/printk.c:1996
vprintk_func+0x75/0x113 kernel/printk/printk_safe.c:386
printk+0xba/0xed kernel/printk/printk.c:2056
htc_connect_service+0x5a1/0x840 drivers/net/wireless/ath/ath9k/htc_hst.c:275
ath9k_wmi_connect+0xec/0x22b drivers/net/wireless/ath/ath9k/wmi.c:289
ath9k_init_htc_services.constprop.0+0x5b/0xa0 drivers/net/wireless/ath/ath9k/htc_drv_init.c:146
ath9k_htc_probe_device.cold+0x35/0x2103 drivers/net/wireless/ath/ath9k/htc_drv_init.c:961
ath9k_htc_hw_init+0x31/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:504
ath9k_hif_usb_firmware_cb+0x26b/0x500 drivers/net/wireless/ath/ath9k/hif_usb.c:1218
request_firmware_work_func+0x126/0x242 drivers/base/firmware_loader/main.c:976
process_one_work+0x94b/0x1620 kernel/workqueue.c:2266
worker_thread+0x96/0xe20 kernel/workqueue.c:2412
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Allocated by task 164:
save_stack+0x1b/0x80 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
__kasan_kmalloc mm/kasan/common.c:515 [inline]
__kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:488
kmalloc include/linux/slab.h:555 [inline]
kzalloc include/linux/slab.h:669 [inline]
ath9k_init_wmi+0x40/0x310 drivers/net/wireless/ath/ath9k/wmi.c:95
ath9k_htc_probe_device+0x21b/0x300 drivers/net/wireless/ath/ath9k/htc_drv_init.c:953
ath9k_htc_hw_init+0x31/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:504
ath9k_hif_usb_firmware_cb+0x26b/0x500 drivers/net/wireless/ath/ath9k/hif_usb.c:1218
request_firmware_work_func+0x126/0x242 drivers/base/firmware_loader/main.c:976
process_one_work+0x94b/0x1620 kernel/workqueue.c:2266
worker_thread+0x96/0xe20 kernel/workqueue.c:2412
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Freed by task 164:
save_stack+0x1b/0x80 mm/kasan/common.c:72
set_track mm/kasan/common.c:80 [inline]
kasan_set_free_info mm/kasan/common.c:337 [inline]
__kasan_slab_free+0x117/0x160 mm/kasan/common.c:476
slab_free_hook mm/slub.c:1444 [inline]
slab_free_freelist_hook mm/slub.c:1477 [inline]
slab_free mm/slub.c:3034 [inline]
kfree+0xd5/0x300 mm/slub.c:3995
ath9k_htc_probe_device.cold+0x53/0x2103 drivers/net/wireless/ath/ath9k/htc_drv_init.c:975
ath9k_htc_hw_init+0x31/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:504
ath9k_hif_usb_firmware_cb+0x26b/0x500 drivers/net/wireless/ath/ath9k/hif_usb.c:1218
request_firmware_work_func+0x126/0x242 drivers/base/firmware_loader/main.c:976
process_one_work+0x94b/0x1620 kernel/workqueue.c:2266
worker_thread+0x96/0xe20 kernel/workqueue.c:2412
kthread+0x318/0x420 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
The buggy address belongs to the object at ffff8881d26ca000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 380 bytes inside of
2048-byte region [ffff8881d26ca000, ffff8881d26ca800)
The buggy address belongs to the page:
page:ffffea000749b200 refcount:1 mapcount:0 mapping:ffff8881da00c000 index:0x0 compound_mapcount: 0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 0000000000000000 0000000400000001 ffff8881da00c000
raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881d26ca000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881d26ca080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881d26ca100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8881d26ca180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8881d26ca200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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