================================================================== 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 ffff8881179e42e8 by task syz-executor.2/25979 CPU: 0 PID: 25979 Comm: syz-executor.2 Not tainted 5.19.0-rc7-syzkaller-00199-g8288c99fc263 #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.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+0x380/0x430 drivers/usb/core/hcd.c:1753 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+0x288/0x9a5 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+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0033:0x7ffb238d7730 Code: 10 64 48 8b 3c 25 00 03 00 00 e8 3b 0c f9 ff f4 66 2e 0f 1f 84 00 00 00 00 00 f7 c7 02 00 00 00 75 27 64 8b 04 25 08 03 00 00 <41> 89 c3 41 83 e3 fd f0 64 44 0f b1 1c 25 08 03 00 00 75 ec 44 89 RSP: 002b:00007ffcf0b579a8 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 00007ffb239c6f60 RCX: 00007ffb238d8f31 RDX: 00007ffcf0b579f0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffb239c8960 R08: 0000000000000000 R09: 00007ffcf0bb0080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000001daf8f R13: 00007ffcf0b57b00 R14: 00007ffb239c7100 R15: 0000000000000bea Allocated by task 0: (stack is not available) The buggy address belongs to the object at ffff8881179e4000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 744 bytes inside of 4096-byte region [ffff8881179e4000, ffff8881179e5000) The buggy address belongs to the physical page: page:ffffea00045e7800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1179e0 head:ffffea00045e7800 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x200000000010200(slab|head|node=0|zone=2) raw: 0200000000010200 0000000000000000 dead000000000122 ffff888100042140 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 25976, tgid 25976 (syz-executor.4), ts 1943309535416, free_ts 1943223416419 prep_new_page mm/page_alloc.c:2456 [inline] get_page_from_freelist+0x138c/0x27a0 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+0x98f/0xda0 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_trace+0x2fd/0x3b0 mm/slub.c:3282 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] kobject_uevent_env+0x235/0x1660 lib/kobject_uevent.c:524 gadget_unbind_driver+0x7e/0x430 drivers/usb/gadget/udc/core.c:1530 device_remove+0xc8/0x170 drivers/base/dd.c:543 __device_release_driver drivers/base/dd.c:1222 [inline] device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1248 driver_detach+0xd5/0x1a0 drivers/base/dd.c:1311 bus_remove_driver+0x109/0x300 drivers/base/bus.c:677 driver_unregister+0x73/0xb0 drivers/base/driver.c:268 usb_gadget_unregister_driver+0x48/0x70 drivers/usb/gadget/udc/core.c:1590 raw_release+0x18b/0x290 drivers/usb/gadget/legacy/raw_gadget.c:413 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+0x537/0xb80 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page+0x19/0x5a0 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+0x2ef/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Memory state around the buggy address: ffff8881179e4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881179e4200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8881179e4280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881179e4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881179e4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================