================================ WARNING: inconsistent lock state 6.1.86-syzkaller #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.0/3795 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9935e90 (lock#10){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b9935e90 (lock#10){?.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x84/0x670 mm/mmap_lock.c:237 {HARDIRQ-ON-W} state was registered at: lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0x9d/0x670 mm/mmap_lock.c:237 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] get_mmap_lock_carefully mm/memory.c:5304 [inline] lock_mm_and_find_vma+0x219/0x2e0 mm/memory.c:5366 do_user_addr_fault arch/x86/mm/fault.c:1343 [inline] handle_page_fault arch/x86/mm/fault.c:1462 [inline] exc_page_fault+0x169/0x660 arch/x86/mm/fault.c:1518 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 strncpy_from_user+0x159/0x360 lib/strncpy_from_user.c:139 strncpy_from_bpfptr include/linux/bpfptr.h:85 [inline] bpf_prog_load+0x188/0x1bb0 kernel/bpf/syscall.c:2515 __sys_bpf+0x382/0x6c0 kernel/bpf/syscall.c:5005 __do_sys_bpf kernel/bpf/syscall.c:5109 [inline] __se_sys_bpf kernel/bpf/syscall.c:5107 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 irq event stamp: 32 hardirqs last enabled at (31): [] refill_stock+0x26b/0x470 mm/memcontrol.c:2315 hardirqs last disabled at (32): [] sysvec_call_function_single+0xa/0xb0 arch/x86/kernel/smp.c:262 softirqs last enabled at (0): [] rcu_lock_acquire include/linux/rcupdate.h:350 [inline] softirqs last enabled at (0): [] rcu_read_lock include/linux/rcupdate.h:791 [inline] softirqs last enabled at (0): [] copy_process+0x9e1/0x4060 kernel/fork.c:2132 softirqs last disabled at (0): [<0000000000000000>] 0x0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(lock#10); lock(lock#10); *** DEADLOCK *** 2 locks held by syz-executor.0/3795: #0: ffffffff8d12ac40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d12ac40 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d12ac40 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2272 [inline] #0: ffffffff8d12ac40 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x110/0x410 kernel/trace/bpf_trace.c:2312 #1: ffff8880163b53d8 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #1: ffff8880163b53d8 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x232/0x9c0 kernel/bpf/stackmap.c:144 stack backtrace: CPU: 1 PID: 3795 Comm: syz-executor.0 Not tainted 6.1.86-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 valid_state+0x136/0x1c0 kernel/locking/lockdep.c:3969 mark_lock_irq+0xa8/0xba0 kernel/locking/lockdep.c:4172 mark_lock+0x21c/0x340 kernel/locking/lockdep.c:4628 mark_usage kernel/locking/lockdep.c:4520 [inline] __lock_acquire+0xb40/0x1f80 kernel/locking/lockdep.c:5003 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0x9d/0x670 mm/mmap_lock.c:237 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_trylock include/linux/mmap_lock.h:137 [inline] stack_map_get_build_id_offset+0x99e/0x9c0 kernel/bpf/stackmap.c:144 __bpf_get_stack+0x495/0x570 kernel/bpf/stackmap.c:452 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1877 [inline] bpf_get_stack_raw_tp+0x1b2/0x220 kernel/trace/bpf_trace.c:1867 bpf_prog_e6cf5f9c69743609+0x3a/0x3e bpf_dispatcher_nop_func include/linux/bpf.h:989 [inline] __bpf_prog_run include/linux/filter.h:603 [inline] bpf_prog_run include/linux/filter.h:610 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2273 [inline] bpf_trace_run2+0x1fd/0x410 kernel/trace/bpf_trace.c:2312 __traceiter_tlb_flush+0x6c/0xc0 include/trace/events/tlb.h:38 trace_tlb_flush+0x151/0x1a0 include/trace/events/tlb.h:38 flush_tlb_func+0x4e3/0x620 arch/x86/mm/tlb.c:875 __flush_smp_call_function_queue+0x2d9/0xd00 kernel/smp.c:641 __sysvec_call_function_single+0xbb/0x360 arch/x86/kernel/smp.c:267 sysvec_call_function_single+0x89/0xb0 arch/x86/kernel/smp.c:262 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:661 RIP: 0010:refill_stock+0x2b8/0x470 mm/memcontrol.c:2316 Code: 40 42 80 3c 2b 00 74 08 4c 89 f7 e8 02 78 f8 ff f6 44 24 41 02 75 50 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 66 43 c7 44 25 09 00 00 43 c6 44 25 0b RSP: 0018:ffffc90004fff2e0 EFLAGS: 00000206 RAX: a5c6d121fbdcfb00 RBX: 1ffff920009ffe64 RCX: ffffffff91c92103 RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffffffff8b3d42e0 RBP: ffffc90004fff3b0 R08: dffffc0000000000 R09: fffffbfff1ce6ede R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920009ffe60 R13: dffffc0000000000 R14: ffffc90004fff320 R15: 0000000000000246 try_charge_memcg+0x1369/0x1880 mm/memcontrol.c:2765 obj_cgroup_charge_pages mm/memcontrol.c:3096 [inline] __memcg_kmem_charge_page+0x244/0x3b0 mm/memcontrol.c:3122 __alloc_pages+0x2c4/0x770 mm/page_alloc.c:5564 __alloc_pages_bulk+0x74a/0xd60 mm/page_alloc.c:5495 vm_area_alloc_pages mm/vmalloc.c:2955 [inline] __vmalloc_area_node mm/vmalloc.c:3051 [inline] __vmalloc_node_range+0x743/0x1460 mm/vmalloc.c:3223 __vmalloc_node mm/vmalloc.c:3288 [inline] __vmalloc+0x75/0x80 mm/vmalloc.c:3302 bpf_prog_alloc_no_stats+0x34/0x3f0 kernel/bpf/core.c:92 bpf_prog_alloc+0x1c/0x1b0 kernel/bpf/core.c:130 bpf_prog_load+0x803/0x1bb0 kernel/bpf/syscall.c:2577 __sys_bpf+0x382/0x6c0 kernel/bpf/syscall.c:5005 __do_sys_bpf kernel/bpf/syscall.c:5109 [inline] __se_sys_bpf kernel/bpf/syscall.c:5107 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5107 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f822267de69 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:00007f82233610c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f82227abf80 RCX: 00007f822267de69 RDX: 0000000000000090 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 00007f82226ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f82227abf80 R15: 00007ffd7abb77b8 ---------------- Code disassembly (best guess): 0: 40 rex 1: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1) 6: 74 08 je 0x10 8: 4c 89 f7 mov %r14,%rdi b: e8 02 78 f8 ff call 0xfff87812 10: f6 44 24 41 02 testb $0x2,0x41(%rsp) 15: 75 50 jne 0x67 17: 41 f7 c7 00 02 00 00 test $0x200,%r15d 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp) 28: e0 45 * 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction 31: 00 00 33: 66 43 c7 44 25 09 00 movw $0x0,0x9(%r13,%r12,1) 3a: 00 3b: 43 rex.XB 3c: c6 .byte 0xc6 3d: 44 rex.R 3e: 25 .byte 0x25 3f: 0b .byte 0xb