==================================================================
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline]
BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0xea7/0x10d0 drivers/net/wireless/ath/ath9k/hif_usb.c:686
Read of size 4 at addr ffff8880785542e8 by task udevd/2974

CPU: 1 PID: 2974 Comm: udevd Not tainted 5.19.0-rc8-syzkaller-00146-ge65c6a46df94 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313
 print_report mm/kasan/report.c:429 [inline]
 kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline]
 ath9k_hif_usb_rx_cb+0xea7/0x10d0 drivers/net/wireless/ath/ath9k/hif_usb.c:686
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1670
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747
 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474
 expire_timers kernel/time/timer.c:1519 [inline]
 __run_timers.part.0+0x679/0xa80 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+0x29b/0x9c2 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:write_comp_data+0x7/0x90 kernel/kcov.c:223
Code: ff 00 75 10 65 48 8b 04 25 80 6f 02 00 48 8b 80 98 15 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 65 8b 05 79 09 88 7e <49> 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25
RSP: 0018:ffffc90002d9fdc8 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 0000000000000040 RCX: ffffffff81dd9117
RDX: 0000000000000040 RSI: 0000000000000009 RDI: 0000000000000004
RBP: 0000000000000009 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807ecdb120
R13: 0000000000004000 R14: 00007ffc26603910 R15: 0000000000000000
 files_lookup_fd_raw include/linux/fdtable.h:87 [inline]
 __fget_light+0x147/0x270 fs/file.c:1006
 fdget include/linux/file.h:63 [inline]
 sockfd_lookup_light+0x20/0x180 net/socket.c:548
 __sys_recvmsg net/socket.c:2775 [inline]
 __do_sys_recvmsg net/socket.c:2789 [inline]
 __se_sys_recvmsg net/socket.c:2786 [inline]
 __x64_sys_recvmsg+0x108/0x220 net/socket.c:2786
 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: 0033:0x7fe5cf9c3003
Code: 8b 15 79 fe 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 89 54 24 1c 48
RSP: 002b:00007ffc26603848 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe5cf9c3003
RDX: 0000000000000040 RSI: 00007ffc26603910 RDI: 0000000000000009
RBP: 00007ffc26603910 R08: 0000000051554d02 R09: 00007ffc2676b080
R10: 00007ffc2676b090 R11: 0000000000000246 R12: 0000000000000000
R13: 000055af3bc7ec00 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff888078553300
 which belongs to the cache names_cache of size 4096
The buggy address is located 4072 bytes inside of
 4096-byte region [ffff888078553300, ffff888078554300)

The buggy address belongs to the physical page:
page:ffffea0001e15400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x78550
head:ffffea0001e15400 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888140007500
raw: 0000000000000000 0000000080070007 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 9750, tgid 9750 (udevd), ts 1364568770901, free_ts 1364528708591
 prep_new_page mm/page_alloc.c:2456 [inline]
 get_page_from_freelist+0x1290/0x3b70 mm/page_alloc.c:4198
 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5426
 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2272
 alloc_slab_page mm/slub.c:1824 [inline]
 allocate_slab+0x26c/0x3c0 mm/slub.c:1969
 new_slab mm/slub.c:2029 [inline]
 ___slab_alloc+0x9c4/0xe20 mm/slub.c:3031
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3118
 slab_alloc_node mm/slub.c:3209 [inline]
 slab_alloc mm/slub.c:3251 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3258 [inline]
 kmem_cache_alloc+0x360/0x3b0 mm/slub.c:3268
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:139
 getname_flags+0x9a/0xe0 include/linux/audit.h:323
 vfs_fstatat+0x73/0xb0 fs/stat.c:254
 __do_sys_newfstatat+0x91/0x110 fs/stat.c:425
 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
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1371 [inline]
 free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421
 free_unref_page_prepare mm/page_alloc.c:3343 [inline]
 free_unref_page+0x19/0x6a0 mm/page_alloc.c:3438
 device_release+0x9f/0x240 drivers/base/core.c:2241
 kobject_cleanup lib/kobject.c:673 [inline]
 kobject_release lib/kobject.c:704 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1c8/0x540 lib/kobject.c:721
 put_device+0x1b/0x30 drivers/base/core.c:3535
 ath9k_htc_probe_device+0x1c7/0x1f00 drivers/net/wireless/ath/ath9k/htc_drv_init.c:976
 ath9k_htc_hw_init+0x31/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:508
 ath9k_hif_usb_firmware_cb+0x274/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1245
 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1107
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

Memory state around the buggy address:
 ffff888078554180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888078554200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888078554280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                          ^
 ffff888078554300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888078554380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
   0:	ff 00                	incl   (%rax)
   2:	75 10                	jne    0x14
   4:	65 48 8b 04 25 80 6f 	mov    %gs:0x26f80,%rax
   b:	02 00
   d:	48 8b 80 98 15 00 00 	mov    0x1598(%rax),%rax
  14:	c3                   	retq
  15:	66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  1c:	00 00 00 00
  20:	0f 1f 00             	nopl   (%rax)
  23:	65 8b 05 79 09 88 7e 	mov    %gs:0x7e880979(%rip),%eax        # 0x7e8809a3
* 2a:	49 89 f1             	mov    %rsi,%r9 <-- trapping instruction
  2d:	89 c6                	mov    %eax,%esi
  2f:	49 89 d2             	mov    %rdx,%r10
  32:	81 e6 00 01 00 00    	and    $0x100,%esi
  38:	49 89 f8             	mov    %rdi,%r8
  3b:	65                   	gs
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	14 25                	adc    $0x25,%al