==================================================================
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x1120/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:686
Read of size 4 at addr ffff888026a84374 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-syzkaller-10037-g7e284070abe5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_address_description+0x65/0x4b0 mm/kasan/report.c:313
print_report+0xf4/0x210 mm/kasan/report.c:429
kasan_report+0xfb/0x130 mm/kasan/report.c:491
ath9k_hif_usb_rx_cb+0x1120/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:686
__usb_hcd_giveback_urb+0x369/0x530 drivers/usb/core/hcd.c:1670
dummy_timer+0x86b/0x3110 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0xf5/0x210 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers+0x76a/0x980 kernel/time/timer.c:1790
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
__do_softirq+0x382/0x793 kernel/softirq.c:571
__irq_exit_rcu+0xec/0x170 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:554 [inline]
RIP: 0010:acpi_idle_enter+0x43d/0x7c0 drivers/acpi/processor_idle.c:691
Code: ff e8 f7 f7 f4 fc 48 83 e3 08 44 8b 7c 24 04 0f 85 21 01 00 00 e8 23 9a fb fc eb 0c e8 1c f3 f4 fc 0f 00 2d 95 e8 62 06 fb f4 <4c> 89 e3 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 e7 e8 4d c4 47 fd
RSP: 0018:ffffffff8c807ba0 EFLAGS: 00000286
RAX: d9e1d6cf7137a300 RBX: 0000000000000000 RCX: ffffffff90bc3603
RDX: dffffc0000000000 RSI: ffffffff8a8d2180 RDI: ffffffff8ae99260
RBP: ffffffff8c807c50 R08: ffffffff818e1610 R09: fffffbfff1917701
R10: fffffbfff1917701 R11: 1ffffffff1917700 R12: ffffffff8c807be0
R13: dffffc0000000000 R14: ffff888016ceb800 R15: 0000000000000001
cpuidle_enter_state+0x517/0xed0 drivers/cpuidle/cpuidle.c:237
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:351
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3d2/0x640 kernel/sched/idle.c:303
cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
rest_init+0x24f/0x270 init/main.c:726
arch_call_rest_init+0xa/0xa init/main.c:882
start_kernel+0x4ac/0x55b init/main.c:1137
secondary_startup_64_no_verify+0xcf/0xdb
Allocated by task 0:
(stack is not available)
The buggy address belongs to the object at ffff888026a84000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 884 bytes inside of
4096-byte region [ffff888026a84000, ffff888026a85000)
The buggy address belongs to the physical page:
page:ffffea00009aa000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26a80
head:ffffea00009aa000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011442140
raw: 0000000000000000 0000000080040004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2952, tgid 2952 (syslogd), ts 45904957462, free_ts 45894622294
prep_new_page mm/page_alloc.c:2436 [inline]
get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4178
__alloc_pages+0x259/0x560 mm/page_alloc.c:5406
alloc_slab_page+0x70/0xf0 mm/slub.c:1797
allocate_slab+0x5e/0x520 mm/slub.c:1942
new_slab mm/slub.c:2002 [inline]
___slab_alloc+0x41e/0xcd0 mm/slub.c:3002
__slab_alloc mm/slub.c:3089 [inline]
slab_alloc_node mm/slub.c:3180 [inline]
slab_alloc mm/slub.c:3222 [inline]
__kmalloc+0x2ba/0x370 mm/slub.c:4413
kmalloc include/linux/slab.h:605 [inline]
tomoyo_realpath_from_path+0xd8/0x5f0 security/tomoyo/realpath.c:254
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x270/0x6b0 security/tomoyo/file.c:822
security_inode_getattr+0xc0/0x140 security/security.c:1344
vfs_getattr+0x26/0x360 fs/stat.c:157
vfs_statx+0x183/0x3f0 fs/stat.c:232
vfs_fstatat fs/stat.c:255 [inline]
__do_sys_newfstatat fs/stat.c:425 [inline]
__se_sys_newfstatat+0xf6/0x790 fs/stat.c:419
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1351 [inline]
free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1401
free_unref_page_prepare mm/page_alloc.c:3323 [inline]
free_unref_page+0x7d/0x390 mm/page_alloc.c:3418
free_large_kmalloc+0xeb/0x1a0 mm/slub.c:3546
kfree+0x188/0x210 mm/slub.c:4551
device_release+0x98/0x1c0
kobject_cleanup+0x235/0x470 lib/kobject.c:673
ath9k_htc_probe_device+0xfe8/0x2090 drivers/net/wireless/ath/ath9k/htc_drv_init.c:976
ath9k_htc_hw_init+0x30/0x70 drivers/net/wireless/ath/ath9k/htc_hst.c:508
ath9k_hif_usb_firmware_cb+0x250/0x4e0 drivers/net/wireless/ath/ath9k/hif_usb.c:1245
request_firmware_work_func+0x198/0x270 drivers/base/firmware_loader/main.c:1039
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Memory state around the buggy address:
ffff888026a84200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888026a84280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888026a84300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff888026a84380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888026a84400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e8 f7 f7 f4 fc callq 0xfcf4f7fc
5: 48 83 e3 08 and $0x8,%rbx
9: 44 8b 7c 24 04 mov 0x4(%rsp),%r15d
e: 0f 85 21 01 00 00 jne 0x135
14: e8 23 9a fb fc callq 0xfcfb9a3c
19: eb 0c jmp 0x27
1b: e8 1c f3 f4 fc callq 0xfcf4f33c
20: 0f 00 2d 95 e8 62 06 verw 0x662e895(%rip) # 0x662e8bc
27: fb sti
28: f4 hlt
* 29: 4c 89 e3 mov %r12,%rbx <-- trapping instruction
2c: 48 c1 eb 03 shr $0x3,%rbx
30: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1)
35: 74 08 je 0x3f
37: 4c 89 e7 mov %r12,%rdi
3a: e8 4d c4 47 fd callq 0xfd47c48c