general protection fault, probably for non-canonical address 0xdffffc00000001f5: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000fa8-0x0000000000000faf] CPU: 0 PID: 19545 Comm: syz-executor.2 Not tainted 5.19.0-rc7-syzkaller-00139-g4ba1329cbb94 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline] RIP: 0010:ath9k_hif_usb_rx_cb+0x827/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:686 Code: 80 3c 08 00 74 08 48 89 df e8 95 6b 31 fc 4c 8b 23 b8 a8 0f 00 00 49 01 c4 4c 89 e0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df <0f> b6 04 10 84 c0 0f 85 16 02 00 00 41 ff 04 24 48 8b 84 24 98 00 RSP: 0018:ffffc90000007680 EFLAGS: 00010006 RAX: 00000000000001f5 RBX: ffff888045d75008 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: 000000000000001e RDI: ffff8880339caac8 RBP: ffffc90000007820 R08: dffffc0000000000 R09: ffffed10038e2e9d R10: ffffed10038e2e9d R11: 1ffff110038e2e9c R12: 0000000000000fa8 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880339caa00 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c015cdd000 CR3: 0000000031b76000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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+0x16/0x20 RIP: 0010:unwind_next_frame+0x6c9/0x24c0 arch/x86/kernel/unwind_orc.c:470 Code: 24 40 48 89 d8 48 c1 e8 03 42 80 3c 08 00 74 12 48 89 df e8 69 a7 9e 00 49 b9 00 00 00 00 00 fc ff df 48 8b 03 48 89 44 24 08 <49> 8d 5e 01 4c 89 f0 48 c1 e8 03 42 8a 04 08 84 c0 0f 85 5b 18 00 RSP: 0018:ffffc9000f756d20 EFLAGS: 00000246 RAX: ffffc9000f7570a8 RBX: ffffc9000f756e40 RCX: ffffffff8e1a27c4 RDX: ffffffff8e8f228c RSI: ffffffff81e31795 RDI: ffffffff813bbc73 RBP: 0000000000000000 R08: 0000000000000001 R09: dffffc0000000000 R10: fffff52001eeadcc R11: 1ffff92001eeadca R12: ffffc9000f756e00 R13: ffffffff8e8f2290 R14: ffffffff8e8f228c R15: 1ffffffff1d1e452 arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122 save_stack+0xf5/0x1e0 mm/page_owner.c:127 __reset_page_owner+0x52/0x190 mm/page_owner.c:148 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page_list+0x12c/0x890 mm/page_alloc.c:3475 release_pages+0x2a04/0x2cb0 mm/swap.c:980 tlb_batch_pages_flush mm/mmu_gather.c:58 [inline] tlb_flush_mmu_free mm/mmu_gather.c:255 [inline] tlb_flush_mmu+0x850/0xa70 mm/mmu_gather.c:262 zap_pte_range+0x18e9/0x19b0 mm/memory.c:1518 zap_pmd_range+0x587/0x690 mm/memory.c:1567 zap_pud_range mm/memory.c:1596 [inline] zap_p4d_range mm/memory.c:1617 [inline] unmap_page_range+0x466/0x7a0 mm/memory.c:1638 unmap_vmas+0x227/0x3b0 mm/memory.c:1723 exit_mmap+0x1c5/0x530 mm/mmap.c:3162 __mmput+0x111/0x3a0 kernel/fork.c:1187 exit_mm+0x211/0x2f0 kernel/exit.c:510 do_exit+0x4b0/0x1eb0 kernel/exit.c:782 do_group_exit+0x23b/0x2f0 kernel/exit.c:925 get_signal+0x172f/0x1780 kernel/signal.c:2857 arch_do_signal_or_restart+0x8d/0x750 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x74/0x160 kernel/entry/common.c:166 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4e4ca89209 Code: Unable to access opcode bytes at RIP 0x7f4e4ca891df. RSP: 002b:00007f4e4dbba218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f4e4cb9c108 RCX: 00007f4e4ca89209 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4e4cb9c108 RBP: 00007f4e4cb9c100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4e4cb9c10c R13: 00007fff0a782c1f R14: 00007f4e4dbba300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline] RIP: 0010:ath9k_hif_usb_rx_cb+0x827/0x1130 drivers/net/wireless/ath/ath9k/hif_usb.c:686 Code: 80 3c 08 00 74 08 48 89 df e8 95 6b 31 fc 4c 8b 23 b8 a8 0f 00 00 49 01 c4 4c 89 e0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df <0f> b6 04 10 84 c0 0f 85 16 02 00 00 41 ff 04 24 48 8b 84 24 98 00 RSP: 0018:ffffc90000007680 EFLAGS: 00010006 RAX: 00000000000001f5 RBX: ffff888045d75008 RCX: dffffc0000000000 RDX: dffffc0000000000 RSI: 000000000000001e RDI: ffff8880339caac8 RBP: ffffc90000007820 R08: dffffc0000000000 R09: ffffed10038e2e9d R10: ffffed10038e2e9d R11: 1ffff110038e2e9c R12: 0000000000000fa8 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880339caa00 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c015cdd000 CR3: 0000000031b76000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) 4: 74 08 je 0xe 6: 48 89 df mov %rbx,%rdi 9: e8 95 6b 31 fc callq 0xfc316ba3 e: 4c 8b 23 mov (%rbx),%r12 11: b8 a8 0f 00 00 mov $0xfa8,%eax 16: 49 01 c4 add %rax,%r12 19: 4c 89 e0 mov %r12,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 27: fc ff df * 2a: 0f b6 04 10 movzbl (%rax,%rdx,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 16 02 00 00 jne 0x24c 36: 41 ff 04 24 incl (%r12) 3a: 48 rex.W 3b: 8b .byte 0x8b 3c: 84 24 98 test %ah,(%rax,%rbx,4)