================================ WARNING: inconsistent lock state 6.10.0-rc2-syzkaller-00765-gbf977ee4a9e2 #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.3/6130 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b94387e8 (lock#10){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b94387e8 (lock#10){?.+.}-{2:2}, at: __mmap_lock_do_trace_released+0x83/0x620 mm/mmap_lock.c:243 {HARDIRQ-ON-W} state was registered at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_start_locking+0x9c/0x620 mm/mmap_lock.c:230 __mmap_lock_trace_start_locking include/linux/mmap_lock.h:29 [inline] mmap_read_trylock include/linux/mmap_lock.h:162 [inline] get_mmap_lock_carefully mm/memory.c:5715 [inline] lock_mm_and_find_vma+0x1f1/0x2f0 mm/memory.c:5775 do_user_addr_fault arch/x86/mm/fault.c:1361 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x1bf/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 __put_user_8+0x11/0x20 arch/x86/lib/putuser.S:105 clear_rseq_cs kernel/rseq.c:257 [inline] rseq_ip_fixup kernel/rseq.c:291 [inline] __rseq_handle_notify_resume+0x666/0x14e0 kernel/rseq.c:329 rseq_handle_notify_resume include/linux/rseq.h:38 [inline] resume_user_mode_work include/linux/resume_user_mode.h:62 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x114/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 528 hardirqs last enabled at (527): [] __text_poke+0x9bf/0xd30 arch/x86/kernel/alternative.c:1943 hardirqs last disabled at (528): [] sysvec_irq_work+0xe/0xc0 arch/x86/kernel/irq_work.c:17 softirqs last enabled at (454): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (454): [] bpf_link_alloc_id kernel/bpf/syscall.c:3187 [inline] softirqs last enabled at (454): [] bpf_link_prime+0x7a/0x240 kernel/bpf/syscall.c:3216 softirqs last disabled at (452): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (452): [] bpf_link_alloc_id kernel/bpf/syscall.c:3185 [inline] softirqs last disabled at (452): [] bpf_link_prime+0x4c/0x240 kernel/bpf/syscall.c:3216 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(lock#10); lock(lock#10); *** DEADLOCK *** 6 locks held by syz-executor.3/6130: #0: ffffffff8e380888 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 #1: ffffffff8e1ce5b0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_enable+0x12/0x20 kernel/jump_label.c:217 #2: ffffffff8e3e1a88 (jump_label_mutex){+.+.}-{3:3}, at: jump_label_lock kernel/jump_label.c:27 [inline] #2: ffffffff8e3e1a88 (jump_label_mutex){+.+.}-{3:3}, at: static_key_enable_cpuslocked+0xd7/0x260 kernel/jump_label.c:202 #3: ffffffff8e1e3688 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:145 #4: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #4: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #4: ffffffff8e333fa0 (rcu_read_lock){....}-{1:2}, at: __pte_offset_map+0x82/0x380 mm/pgtable-generic.c:287 #5: ffff88801507b078 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #5: ffff88801507b078 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: __pte_offset_map_lock+0x1ba/0x300 mm/pgtable-generic.c:375 stack backtrace: CPU: 0 PID: 6130 Comm: syz-executor.3 Not tainted 6.10.0-rc2-syzkaller-00765-gbf977ee4a9e2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4013 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4216 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4678 mark_usage kernel/locking/lockdep.c:4564 [inline] __lock_acquire+0xb8e/0x1fd0 kernel/locking/lockdep.c:5091 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_released+0x9c/0x620 mm/mmap_lock.c:243 __mmap_lock_trace_released include/linux/mmap_lock.h:42 [inline] mmap_read_unlock_non_owner include/linux/mmap_lock.h:176 [inline] do_mmap_read_unlock+0x5d/0x60 kernel/bpf/task_iter.c:1049 irq_work_single+0xe2/0x240 kernel/irq_work.c:221 irq_work_run_list kernel/irq_work.c:252 [inline] irq_work_run+0x18b/0x350 kernel/irq_work.c:261 __sysvec_irq_work+0xb8/0x430 arch/x86/kernel/irq_work.c:22 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x9e/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:__text_poke+0xa4a/0xd30 arch/x86/kernel/alternative.c:1944 Code: 7c 24 50 00 75 19 e8 45 03 61 00 eb 18 e8 3e 03 61 00 e8 09 27 51 0a 48 83 7c 24 50 00 74 e7 e8 2c 03 61 00 fb 48 8b 44 24 78 <42> 80 3c 28 00 74 0d 48 8d bc 24 60 01 00 00 e8 12 e0 c6 00 48 8b RSP: 0018:ffffc900132d76a0 EFLAGS: 00000283 RAX: 1ffff9200265af00 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000a4e3000 RSI: 0000000000000f85 RDI: 0000000000000f86 RBP: ffffc900132d7870 R08: ffffffff81352094 R09: 1ffffffff25f54b0 R10: dffffc0000000000 R11: fffffbfff25f54b1 R12: 1ffff9200265aee4 R13: dffffc0000000000 R14: 0000000000000046 R15: ffffffff814262a6 text_poke arch/x86/kernel/alternative.c:1968 [inline] text_poke_bp_batch+0x265/0xb30 arch/x86/kernel/alternative.c:2276 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2477 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361 tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:482 bpf_raw_tp_link_attach+0x48b/0x6e0 kernel/bpf/syscall.c:3896 bpf_raw_tracepoint_open+0x1c2/0x240 kernel/bpf/syscall.c:3927 __sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5752 __do_sys_bpf kernel/bpf/syscall.c:5817 [inline] __se_sys_bpf kernel/bpf/syscall.c:5815 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5815 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f865327cf29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8653f730c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f86533b3f80 RCX: 00007f865327cf29 RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000011 RBP: 00007f86532ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f86533b3f80 R15: 00007ffd173870c8 ---------------- Code disassembly (best guess): 0: 7c 24 jl 0x26 2: 50 push %rax 3: 00 75 19 add %dh,0x19(%rbp) 6: e8 45 03 61 00 call 0x610350 b: eb 18 jmp 0x25 d: e8 3e 03 61 00 call 0x610350 12: e8 09 27 51 0a call 0xa512720 17: 48 83 7c 24 50 00 cmpq $0x0,0x50(%rsp) 1d: 74 e7 je 0x6 1f: e8 2c 03 61 00 call 0x610350 24: fb sti 25: 48 8b 44 24 78 mov 0x78(%rsp),%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 0d je 0x3e 31: 48 8d bc 24 60 01 00 lea 0x160(%rsp),%rdi 38: 00 39: e8 12 e0 c6 00 call 0xc6e050 3e: 48 rex.W 3f: 8b .byte 0x8b