================================================================== BUG: KASAN: use-after-free in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:643 [inline] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0xa65/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:687 Read of size 4 at addr ffff88807690c348 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.18.0-rc4-syzkaller-00050-g46cf2c613f4b #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_stream drivers/net/wireless/ath/ath9k/hif_usb.c:643 [inline] ath9k_hif_usb_rx_cb+0xa65/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:687 __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:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers+0x76a/0x980 kernel/time/timer.c:1737 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1750 __do_softirq+0x382/0x793 kernel/softirq.c:558 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 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:116 [inline] RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:556 [inline] RIP: 0010:acpi_idle_enter+0x42d/0x790 drivers/acpi/processor_idle.c:691 Code: fc 48 83 e3 08 44 8b 7c 24 04 0f 85 22 01 00 00 4c 8d 74 24 40 e8 13 00 01 fd eb 0c e8 2c 5c fa fc 0f 00 2d 95 a3 68 06 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 23 00 74 08 4c 89 f7 e8 ed 42 4b fd RSP: 0018:ffffc90000177c00 EFLAGS: 00000286 RAX: 95c366dec0b65d00 RBX: 0000000000000000 RCX: ffffffff90b7a603 RDX: dffffc0000000000 RSI: ffffffff8a8d0480 RDI: ffffffff8ae88b60 RBP: ffffc90000177cb0 R08: ffffffff818ca300 R09: ffffed1027fd73b1 R10: ffffed1027fd73b1 R11: 1ffff11027fd73b0 R12: dffffc0000000000 R13: ffff8880173c1064 R14: ffffc90000177c40 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 secondary_startup_64_no_verify+0xc4/0xcb The buggy address belongs to the physical page: page:ffffea0001da4300 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x7690c flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 3, migratetype Unmovable, gfp_mask 0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), pid 140, tgid 140 (kworker/1:2), ts 60190112626, free_ts 61236036271 prep_new_page mm/page_alloc.c:2441 [inline] get_page_from_freelist+0x72e/0x7a0 mm/page_alloc.c:4182 __alloc_pages+0x26c/0x5f0 mm/page_alloc.c:5408 kmalloc_order+0x41/0x150 mm/slab_common.c:953 kmalloc_order_trace+0x15/0x70 mm/slab_common.c:969 kmalloc_large include/linux/slab.h:510 [inline] __kmalloc+0x26b/0x370 mm/slub.c:4403 kmalloc include/linux/slab.h:586 [inline] kzalloc include/linux/slab.h:714 [inline] wiphy_new_nm+0x617/0x18f0 net/wireless/core.c:440 ieee80211_alloc_hw_nm+0x338/0x1e60 net/mac80211/main.c:585 ieee80211_alloc_hw include/net/mac80211.h:4344 [inline] ath9k_htc_probe_device+0xaa/0x2090 drivers/net/wireless/ath/ath9k/htc_drv_init.c:939 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:1246 request_firmware_work_func+0x198/0x270 drivers/base/firmware_loader/main.c:1022 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 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1356 [inline] free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1406 free_unref_page_prepare mm/page_alloc.c:3328 [inline] free_unref_page+0x7d/0x390 mm/page_alloc.c:3423 free_large_kmalloc+0xeb/0x1a0 mm/slub.c:3549 kfree+0x188/0x210 mm/slub.c:4548 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:1246 request_firmware_work_func+0x198/0x270 drivers/base/firmware_loader/main.c:1022 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: ffff88807690c200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807690c280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88807690c300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807690c380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807690c400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== ---------------- Code disassembly (best guess): 0: fc cld 1: 48 83 e3 08 and $0x8,%rbx 5: 44 8b 7c 24 04 mov 0x4(%rsp),%r15d a: 0f 85 22 01 00 00 jne 0x132 10: 4c 8d 74 24 40 lea 0x40(%rsp),%r14 15: e8 13 00 01 fd callq 0xfd01002d 1a: eb 0c jmp 0x28 1c: e8 2c 5c fa fc callq 0xfcfa5c4d 21: 0f 00 2d 95 a3 68 06 verw 0x668a395(%rip) # 0x668a3bd 28: fb sti 29: f4 hlt * 2a: 4c 89 f3 mov %r14,%rbx <-- trapping instruction 2d: 48 c1 eb 03 shr $0x3,%rbx 31: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1) 36: 74 08 je 0x40 38: 4c 89 f7 mov %r14,%rdi 3b: e8 ed 42 4b fd callq 0xfd4b432d