==================================================================
BUG: KASAN: use-after-free in ar5523_cmd_tx_cb+0x220/0x240 drivers/net/wireless/ath/ar5523/ar5523.c:228
Read of size 8 at addr ffff88813d81f450 by task syz-executor.2/26459
CPU: 0 PID: 26459 Comm: syz-executor.2 Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:317 [inline]
print_report.cold+0x2ba/0x719 mm/kasan/report.c:433
kasan_report+0xb1/0x1e0 mm/kasan/report.c:495
ar5523_cmd_tx_cb+0x220/0x240 drivers/net/wireless/ath/ar5523/ar5523.c:228
__usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671
usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754
dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x1c0/0x9a9 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x113/0x170 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_is_held_type+0xff/0x140 kernel/locking/lockdep.c:5714
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 34 06 0f 7a 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 0f 0b 48
RSP: 0018:ffffc9000f82f8f0 EFLAGS: 00000296
RAX: 0000000000000046 RBX: 0000000000000004 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff87ad7df8 R08: 0000000000000000 R09: ffffffff8b0736c7
R10: fffffbfff160e6d8 R11: 0000000000000000 R12: ffff888112adb900
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888112adc370
lock_is_held include/linux/lockdep.h:283 [inline]
task_css include/linux/cgroup.h:495 [inline]
mem_cgroup_from_task+0x8c/0x130 mm/memcontrol.c:914
get_obj_cgroup_from_current+0x10e/0x250 mm/memcontrol.c:2964
memcg_slab_pre_alloc_hook mm/slab.h:480 [inline]
slab_pre_alloc_hook mm/slab.h:705 [inline]
slab_alloc_node mm/slub.c:3157 [inline]
slab_alloc mm/slub.c:3251 [inline]
__kmem_cache_alloc_lru mm/slub.c:3258 [inline]
kmem_cache_alloc+0x82/0x4a0 mm/slub.c:3268
anon_vma_chain_alloc mm/rmap.c:140 [inline]
anon_vma_clone+0xe0/0x5f0 mm/rmap.c:286
anon_vma_fork+0x82/0x630 mm/rmap.c:349
dup_mmap kernel/fork.c:658 [inline]
dup_mm+0x8f0/0x1230 kernel/fork.c:1524
copy_mm kernel/fork.c:1576 [inline]
copy_process+0x3bb2/0x6de0 kernel/fork.c:2256
kernel_clone+0xe7/0xab0 kernel/fork.c:2673
__do_sys_clone+0xba/0x100 kernel/fork.c:2807
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f62dcf2a86b
Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00
RSP: 002b:00007ffd023e4390 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f62dcf2a86b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555563ba400
R10: 00005555563ba6d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd023e4470
The buggy address belongs to the physical page:
page:ffffea0004f607c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13d81f
flags: 0x200000000000000(node=0|zone=2)
raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x140dc0(GFP_USER|__GFP_COMP|__GFP_ZERO), pid 18916, tgid 18916 (kworker/0:1), ts 2666823446624, free_ts 2668935512865
prep_new_page mm/page_alloc.c:2532 [inline]
get_page_from_freelist+0x11cc/0x2a20 mm/page_alloc.c:4283
__alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515
alloc_pages+0x1a6/0x270 mm/mempolicy.c:2270
kmalloc_order+0x34/0xf0 mm/slab_common.c:917
kmalloc_order_trace+0x13/0x120 mm/slab_common.c:933
kmalloc include/linux/slab.h:605 [inline]
kzalloc include/linux/slab.h:733 [inline]
wiphy_new_nm+0x6fc/0x2090 net/wireless/core.c:440
ieee80211_alloc_hw_nm+0x44b/0x2450 net/mac80211/main.c:668
ieee80211_alloc_hw include/net/mac80211.h:4511 [inline]
ar5523_probe+0x11a/0x1d10 drivers/net/wireless/ath/ar5523/ar5523.c:1595
usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:530 [inline]
really_probe+0x249/0xb90 drivers/base/dd.c:609
__driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778
__device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x1e4/0x530 drivers/base/dd.c:973
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1449 [inline]
free_pcp_prepare+0x5d2/0xb80 mm/page_alloc.c:1499
free_unref_page_prepare mm/page_alloc.c:3380 [inline]
free_unref_page+0x19/0x420 mm/page_alloc.c:3476
device_release+0x9f/0x240 drivers/base/core.c:2330
kobject_cleanup lib/kobject.c:673 [inline]
kobject_release lib/kobject.c:704 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x1be/0x4c0 lib/kobject.c:721
put_device+0x1b/0x30 drivers/base/core.c:3624
ar5523_probe+0xe38/0x1d10 drivers/net/wireless/ath/ar5523/ar5523.c:1719
usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:530 [inline]
really_probe+0x249/0xb90 drivers/base/dd.c:609
__driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778
__device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x1e4/0x530 drivers/base/dd.c:973
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xbd5/0x1e90 drivers/base/core.c:3517
usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170
Memory state around the buggy address:
ffff88813d81f300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88813d81f380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88813d81f400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
^
ffff88813d81f480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
ffff88813d81f500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: b8 ff ff ff ff mov $0xffffffff,%eax
7: 65 0f c1 05 34 06 0f xadd %eax,%gs:0x7a0f0634(%rip) # 0x7a0f0643
e: 7a
f: 83 f8 01 cmp $0x1,%eax
12: 75 29 jne 0x3d
14: 9c pushfq
15: 58 pop %rax
16: f6 c4 02 test $0x2,%ah
19: 75 3d jne 0x58
1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp)
22: 00
23: 74 01 je 0x26
25: fb sti
26: 48 83 c4 08 add $0x8,%rsp
* 2a: 44 89 e8 mov %r13d,%eax <-- trapping instruction
2d: 5b pop %rbx
2e: 5d pop %rbp
2f: 41 5c pop %r12
31: 41 5d pop %r13
33: 41 5e pop %r14
35: 41 5f pop %r15
37: c3 retq
38: 45 31 ed xor %r13d,%r13d
3b: eb b9 jmp 0xfffffff6
3d: 0f 0b ud2
3f: 48 rex.W