INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 PID: 1177 Comm: udevd Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 assign_lock_key kernel/locking/lockdep.c:979 [inline] register_lock_class+0xf1b/0x1120 kernel/locking/lockdep.c:1292 __lock_acquire+0x109/0x56d0 kernel/locking/lockdep.c:4932 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 skb_queue_tail+0x21/0x140 net/core/skbuff.c:3503 ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712 ath9k_htc_txcompletion_cb+0x1cd/0x2e0 drivers/net/wireless/ath/ath9k/htc_hst.c:353 hif_usb_regout_cb+0x115/0x1c0 drivers/net/wireless/ath/ath9k/hif_usb.c:90 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 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+0x1bd/0x9ab 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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__orc_find+0x86/0xf0 arch/x86/kernel/unwind_orc.c:52 Code: d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 48 01 d8 <48> 39 c1 73 b0 4c 8d 63 fc 49 39 ec 73 b3 4d 29 ee 49 c1 fe 02 4b RSP: 0018:ffffc90000527570 EFLAGS: 00000297 RAX: ffffffff85f65e44 RBX: ffffffff892a5278 RCX: ffffffff85f65e74 RDX: 0000000000000000 RSI: ffffffff89908562 RDI: ffffffff892a5260 RBP: ffffffff892a5260 R08: ffffffff879260e0 R09: ffffc9000052765c R10: fffff520000a4ed0 R11: 0000000000052040 R12: ffffffff892a5290 R13: ffffffff892a5260 R14: ffffffff892a5260 R15: dffffc0000000000 orc_find arch/x86/kernel/unwind_orc.c:178 [inline] unwind_next_frame+0x2a3/0x1cc0 arch/x86/kernel/unwind_orc.c:448 arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:367 [inline] ____kasan_slab_free+0x14a/0x1b0 mm/kasan/common.c:329 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1759 [inline] slab_free_freelist_hook mm/slub.c:1785 [inline] slab_free mm/slub.c:3539 [inline] kfree+0xca/0x5c0 mm/slub.c:4567 tomoyo_realpath_from_path+0x18c/0x600 security/tomoyo/realpath.c:286 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1345 vfs_getattr fs/stat.c:158 [inline] vfs_statx+0x16e/0x430 fs/stat.c:233 vfs_fstatat+0x8c/0xb0 fs/stat.c:267 __do_sys_newfstatat+0x94/0x120 fs/stat.c:437 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: 0033:0x7febc624a1da Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7 RSP: 002b:00007ffd8a2d23c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000557d6d81ac70 RCX: 00007febc624a1da RDX: 00007ffd8a2d23d0 RSI: 00007febc62e075a RDI: 000000000000000c RBP: 000000000000000c R08: 0000000000090800 R09: 0000557d6d7db210 R10: 0000000000001000 R11: 0000000000000206 R12: 00007ffd8a2d23d0 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000000000 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 1177 Comm: udevd Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:__skb_insert include/linux/skbuff.h:2165 [inline] RIP: 0010:__skb_queue_before include/linux/skbuff.h:2271 [inline] RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2304 [inline] RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3504 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 4c 89 e2 4c 89 65 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 6b 08 <80> 3c 02 00 75 4f 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc900001889e0 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff888113c23890 RCX: ffffffff812a9b40 RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffff88810f99b288 RBP: ffff88810f99b280 R08: 0000000000000001 R09: 0000000000000003 R10: fffff5200003112a R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff888113c238a8 R14: 000000010003717f R15: ffffffff83308020 FS: 00007febc60f3840(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc67a5b98 CR3: 000000010f16c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ath9k_htc_txep+0x287/0x400 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:712 ath9k_htc_txcompletion_cb+0x1cd/0x2e0 drivers/net/wireless/ath/ath9k/htc_hst.c:353 hif_usb_regout_cb+0x115/0x1c0 drivers/net/wireless/ath/ath9k/hif_usb.c:90 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 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+0x1bd/0x9ab 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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__orc_find+0x86/0xf0 arch/x86/kernel/unwind_orc.c:52 Code: d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 48 01 d8 <48> 39 c1 73 b0 4c 8d 63 fc 49 39 ec 73 b3 4d 29 ee 49 c1 fe 02 4b RSP: 0018:ffffc90000527570 EFLAGS: 00000297 RAX: ffffffff85f65e44 RBX: ffffffff892a5278 RCX: ffffffff85f65e74 RDX: 0000000000000000 RSI: ffffffff89908562 RDI: ffffffff892a5260 RBP: ffffffff892a5260 R08: ffffffff879260e0 R09: ffffc9000052765c R10: fffff520000a4ed0 R11: 0000000000052040 R12: ffffffff892a5290 R13: ffffffff892a5260 R14: ffffffff892a5260 R15: dffffc0000000000 orc_find arch/x86/kernel/unwind_orc.c:178 [inline] unwind_next_frame+0x2a3/0x1cc0 arch/x86/kernel/unwind_orc.c:448 arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:367 [inline] ____kasan_slab_free+0x14a/0x1b0 mm/kasan/common.c:329 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1759 [inline] slab_free_freelist_hook mm/slub.c:1785 [inline] slab_free mm/slub.c:3539 [inline] kfree+0xca/0x5c0 mm/slub.c:4567 tomoyo_realpath_from_path+0x18c/0x600 security/tomoyo/realpath.c:286 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1345 vfs_getattr fs/stat.c:158 [inline] vfs_statx+0x16e/0x430 fs/stat.c:233 vfs_fstatat+0x8c/0xb0 fs/stat.c:267 __do_sys_newfstatat+0x94/0x120 fs/stat.c:437 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: 0033:0x7febc624a1da Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7 RSP: 002b:00007ffd8a2d23c8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000557d6d81ac70 RCX: 00007febc624a1da RDX: 00007ffd8a2d23d0 RSI: 00007febc62e075a RDI: 000000000000000c RBP: 000000000000000c R08: 0000000000090800 R09: 0000557d6d7db210 R10: 0000000000001000 R11: 0000000000000206 R12: 00007ffd8a2d23d0 R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__skb_insert include/linux/skbuff.h:2165 [inline] RIP: 0010:__skb_queue_before include/linux/skbuff.h:2271 [inline] RIP: 0010:__skb_queue_tail include/linux/skbuff.h:2304 [inline] RIP: 0010:skb_queue_tail+0x9e/0x140 net/core/skbuff.c:3504 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 80 00 00 00 4c 89 e2 4c 89 65 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 6b 08 <80> 3c 02 00 75 4f 48 8d 7b 10 49 89 2c 24 48 b8 00 00 00 00 00 fc RSP: 0018:ffffc900001889e0 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff888113c23890 RCX: ffffffff812a9b40 RDX: 0000000000000000 RSI: 0000000000000016 RDI: ffff88810f99b288 RBP: ffff88810f99b280 R08: 0000000000000001 R09: 0000000000000003 R10: fffff5200003112a R11: 3e4b5341542f3c20 R12: 0000000000000000 R13: ffff888113c238a8 R14: 000000010003717f R15: ffffffff83308020 FS: 00007febc60f3840(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc67a5b98 CR3: 000000010f16c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: d1 f8 sar %eax 2: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 7: 48 89 d8 mov %rbx,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 13: 48 89 d8 mov %rbx,%rax 16: 83 e0 07 and $0x7,%eax 19: 83 c0 03 add $0x3,%eax 1c: 38 d0 cmp %dl,%al 1e: 7c 04 jl 0x24 20: 84 d2 test %dl,%dl 22: 75 48 jne 0x6c 24: 48 63 03 movslq (%rbx),%rax 27: 48 01 d8 add %rbx,%rax * 2a: 48 39 c1 cmp %rax,%rcx <-- trapping instruction 2d: 73 b0 jae 0xffffffdf 2f: 4c 8d 63 fc lea -0x4(%rbx),%r12 33: 49 39 ec cmp %rbp,%r12 36: 73 b3 jae 0xffffffeb 38: 4d 29 ee sub %r13,%r14 3b: 49 c1 fe 02 sar $0x2,%r14 3f: 4b rex.WXB