================================ WARNING: inconsistent lock state 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.4/5204 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9438528 (lock#10){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b9438528 (lock#10){?.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x600 mm/mmap_lock.c:237 {HARDIRQ-ON-W} state was registered at: lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0xa8/0x600 mm/mmap_lock.c:237 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_read_lock include/linux/mmap_lock.h:147 [inline] process_vm_rw_single_vec mm/process_vm_access.c:105 [inline] process_vm_rw_core mm/process_vm_access.c:216 [inline] process_vm_rw+0xa46/0xcf0 mm/process_vm_access.c:284 __do_sys_process_vm_readv mm/process_vm_access.c:296 [inline] __se_sys_process_vm_readv mm/process_vm_access.c:292 [inline] __x64_sys_process_vm_readv+0xe0/0x100 mm/process_vm_access.c:292 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 irq event stamp: 26 hardirqs last enabled at (25): [] syscall_enter_from_user_mode include/linux/entry-common.h:197 [inline] hardirqs last enabled at (25): [] do_syscall_64+0xb6/0x240 arch/x86/entry/common.c:79 hardirqs last disabled at (26): [] sysvec_call_function_single+0xe/0xc0 arch/x86/kernel/smp.c:266 softirqs last enabled at (0): [] rcu_lock_acquire include/linux/rcupdate.h:329 [inline] softirqs last enabled at (0): [] rcu_read_lock include/linux/rcupdate.h:781 [inline] softirqs last enabled at (0): [] copy_process+0xa03/0x3df0 kernel/fork.c:2258 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.4/5204: #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #0: ffffffff8e131920 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420 #1: ffff88807b2981a0 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #1: ffff88807b2981a0 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x237/0x9d0 kernel/bpf/stackmap.c:141 stack backtrace: CPU: 0 PID: 5204 Comm: syz-executor.4 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #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+0x1e7/0x2e0 lib/dump_stack.c:106 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+0x1e4/0x530 kernel/locking/lockdep.c:5754 local_lock_acquire include/linux/local_lock_internal.h:29 [inline] __mmap_lock_do_trace_acquire_returned+0xa8/0x600 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:166 [inline] stack_map_get_build_id_offset+0x9b2/0x9d0 kernel/bpf/stackmap.c:141 __bpf_get_stack+0x4ad/0x5a0 kernel/bpf/stackmap.c:449 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1985 [inline] bpf_get_stack_raw_tp+0x1a3/0x240 kernel/trace/bpf_trace.c:1975 bpf_prog_e6cf5f9c69743609+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420 __traceiter_tlb_flush+0x77/0xd0 include/trace/events/tlb.h:38 trace_tlb_flush+0xfa/0x120 include/trace/events/tlb.h:38 flush_tlb_func+0x4e7/0x630 arch/x86/mm/tlb.c:895 csd_do_func kernel/smp.c:133 [inline] __flush_smp_call_function_queue+0x3ec/0x15b0 kernel/smp.c:511 __sysvec_call_function_single+0xa8/0x3e0 arch/x86/kernel/smp.c:271 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline] sysvec_call_function_single+0x9e/0xc0 arch/x86/kernel/smp.c:266 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709 RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:202 [inline] RIP: 0010:unwind_next_frame+0x1af/0x2a00 arch/x86/kernel/unwind_orc.c:494 Code: 00 48 0f be 2a 48 8b 44 24 30 42 80 3c 30 00 74 08 48 89 df e8 62 a5 b7 00 48 03 2b 48 8d 75 ff 31 ff e8 34 64 54 00 48 ff cd <4c> 89 24 24 4c 89 7c 24 70 4c 89 6c 24 48 0f 84 41 01 00 00 48 c7 RSP: 0018:ffffc90004b8f2e0 EFLAGS: 00000287 RAX: 0000000000000000 RBX: ffffc90004b8f468 RCX: ffff88802251bc00 RDX: ffffc90004b8f455 RSI: ffffffff813726d2 RDI: 0000000000000000 RBP: ffffffff813726d2 R08: ffffffff8140911c R09: ffffffff8140a8df R10: 0000000000000003 R11: ffff88802251bc00 R12: ffffc90004b8f420 R13: ffffc90004b8f470 R14: dffffc0000000000 R15: ffffffff813726d3 __unwind_start+0x641/0x7c0 arch/x86/kernel/unwind_orc.c:760 unwind_start arch/x86/include/asm/unwind.h:64 [inline] arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_node_trace+0x1fb/0x3a0 mm/slub.c:4024 kmalloc_node include/linux/slab.h:606 [inline] kzalloc_node include/linux/slab.h:722 [inline] __get_vm_area_node+0x125/0x370 mm/vmalloc.c:2660 __vmalloc_node_range+0x3df/0x14a0 mm/vmalloc.c:3352 __vmalloc_node mm/vmalloc.c:3457 [inline] __vmalloc+0x79/0x90 mm/vmalloc.c:3471 bpf_prog_alloc_no_stats+0x4d/0x4a0 kernel/bpf/core.c:103 bpf_prog_alloc+0x3b/0x1b0 kernel/bpf/core.c:144 bpf_prog_load+0x7f7/0x20f0 kernel/bpf/syscall.c:2805 __sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5631 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f934927de69 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:00007f934a0250c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f93493abf80 RCX: 00007f934927de69 RDX: 0000000000000090 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 00007f93492ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f93493abf80 R15: 00007ffe5cfc90e8 ---------------- Code disassembly (best guess): 0: 00 48 0f add %cl,0xf(%rax) 3: be 2a 48 8b 44 mov $0x448b482a,%esi 8: 24 30 and $0x30,%al a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) f: 74 08 je 0x19 11: 48 89 df mov %rbx,%rdi 14: e8 62 a5 b7 00 call 0xb7a57b 19: 48 03 2b add (%rbx),%rbp 1c: 48 8d 75 ff lea -0x1(%rbp),%rsi 20: 31 ff xor %edi,%edi 22: e8 34 64 54 00 call 0x54645b 27: 48 ff cd dec %rbp * 2a: 4c 89 24 24 mov %r12,(%rsp) <-- trapping instruction 2e: 4c 89 7c 24 70 mov %r15,0x70(%rsp) 33: 4c 89 6c 24 48 mov %r13,0x48(%rsp) 38: 0f 84 41 01 00 00 je 0x17f 3e: 48 rex.W 3f: c7 .byte 0xc7