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BUG: KASAN: slab-out-of-bounds in htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443
Write of size 2 at addr ffff8881c88fe7f0 by task syz-executor.4/9919
CPU: 1 PID: 9919 Comm: syz-executor.4 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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+0xd3/0x415 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
RIP: 0010:lock_acquire+0x1d1/0x7c0 kernel/locking/lockdep.c:4906
Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 63 05 00 00 83 ab 7c 08 00 00 01 0f 85 02 04 00 00 ff 34 24 9d <48> b8 00 00 00 00 00 fc ff df 48 03 44 24 08 48 c7 00 00 00 00 00
RSP: 0018:ffff8881d2cdf730 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: ffff8881d416e300 RCX: ffffffff812694b8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d416eb7c
RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff126c8c2
R10: ffffffff8936460f R11: fffffbfff126c8c1 R12: 0000000000000001
R13: ffff8881c4906d28 R14: 0000000000000001 R15: 0000000000000000
down_read_trylock kernel/locking/rwsem.c:1520 [inline]
down_read_trylock+0x193/0x350 kernel/locking/rwsem.c:1515
do_user_addr_fault arch/x86/mm/fault.c:1405 [inline]
do_page_fault+0x30b/0x127d arch/x86/mm/fault.c:1535
page_fault+0x34/0x40 arch/x86/entry/entry_64.S:1203
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffff8881d2cdf9f0 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000001000 RCX: 0000000000000200
RDX: 0000000000001000 RSI: ffff8881a80aae00 RDI: 000000002064a000
RBP: 0000000020649200 R08: ffffed1035015600 R09: 0000000000000000
R10: ffff8881a80aafff R11: ffffed10350155ff R12: ffff8881a80aa000
R13: 000000002064a200 R14: 00007ffffffff000 R15: 0000000000000000
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:74 [inline]
copyout+0x107/0x140 lib/iov_iter.c:142
copy_page_to_iter_iovec lib/iov_iter.c:211 [inline]
copy_page_to_iter+0x447/0xed0 lib/iov_iter.c:920
generic_file_buffered_read mm/filemap.c:2129 [inline]
generic_file_read_iter+0xfef/0x2a20 mm/filemap.c:2309
ext4_file_read_iter fs/ext4/file.c:131 [inline]
ext4_file_read_iter+0x181/0x430 fs/ext4/file.c:114
call_read_iter include/linux/fs.h:1901 [inline]
new_sync_read+0x41e/0x6d0 fs/read_write.c:415
__vfs_read+0xc9/0x100 fs/read_write.c:428
vfs_read+0x1f0/0x420 fs/read_write.c:462
ksys_read+0x12d/0x250 fs/read_write.c:588
do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca69
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb8e67f1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000004fb780 RCX: 000000000045ca69
RDX: 00000000ffffffad RSI: 0000000020003200 RDI: 0000000000000007
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000089a R14: 00000000004cb7d3 R15: 00007fb8e67f26d4
Allocated by task 22:
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_set_configuration+0x2c4/0x1850 drivers/usb/core/message.c:1854
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 17:
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
remove_intf_ep_devs+0x108/0x1d0 drivers/usb/core/message.c:1120
usb_disable_device+0x235/0x790 drivers/usb/core/message.c:1244
usb_disconnect+0x293/0x900 drivers/usb/core/hub.c:2217
hub_port_connect drivers/usb/core/hub.c:5059 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]
port_event drivers/usb/core/hub.c:5494 [inline]
hub_event+0x1abf/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 ffff8881c88fe000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 2032 bytes inside of
2048-byte region [ffff8881c88fe000, ffff8881c88fe800)
The buggy address belongs to the page:
page:ffffea0007223e00 refcount:1 mapcount:0 mapping:00000000b72663e8 index:0xffff8881c88fa000 head:ffffea0007223e00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head)
raw: 0200000000010200 ffffea00073efe00 0000000200000002 ffff8881da00c000
raw: ffff8881c88fa000 0000000080080006 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881c88fe680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8881c88fe700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881c88fe780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8881c88fe800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8881c88fe880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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