================================ WARNING: inconsistent lock state 6.9.0-rc5-syzkaller-00184-gba1cb99b559e #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.3/5208 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b95387e8 (lock#10){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b95387e8 (lock#10){?.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x630 mm/mmap_lock.c:237 {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_acquire_returned+0xa8/0x630 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_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 78 hardirqs last enabled at (77): [] seqcount_lockdep_reader_access+0x13b/0x1e0 include/linux/seqlock.h:74 hardirqs last disabled at (78): [] 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:2259 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.3/5208: #0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420 #1: ffff88801dc094a0 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #1: ffff88801dc094a0 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x237/0x9d0 kernel/bpf/stackmap.c:141 stack backtrace: CPU: 1 PID: 5208 Comm: syz-executor.3 Not tainted 6.9.0-rc5-syzkaller-00184-gba1cb99b559e #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+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_acquire_returned+0xa8/0x630 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+0x118/0x140 include/trace/events/tlb.h:38 flush_tlb_func+0x4e7/0x630 arch/x86/mm/tlb.c:892 csd_do_func kernel/smp.c:133 [inline] __flush_smp_call_function_queue+0x3fc/0x1690 kernel/smp.c:511 __sysvec_call_function_single+0xb8/0x430 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:__sanitizer_cov_trace_switch+0x90/0x120 kernel/kcov.c:340 Code: 85 d2 75 14 e9 9a 00 00 00 41 b8 05 00 00 00 4d 85 d2 0f 84 8b 00 00 00 4c 8b 4c 24 20 65 4c 8b 1c 25 c0 d3 03 00 31 d2 eb 08 <48> ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 a4 cd 6d 7e a9 00 RSP: 0018:ffffc90003d1e760 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888073ef0000 RDX: 0000000000000004 RSI: ffffffff8e1a2f20 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000005 R09: ffffffff8141472e R10: 0000000000000008 R11: ffff888073ef0000 R12: ffffffff8fbe3b94 R13: dffffc0000000000 R14: 0000000000000006 R15: 1ffff920007a3d0c unwind_next_frame+0x7be/0x2a00 arch/x86/kernel/unwind_orc.c:515 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 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+0x1fd/0x3a0 mm/slub.c:4009 kmalloc_node include/linux/slab.h:644 [inline] kzalloc_node include/linux/slab.h:760 [inline] __get_vm_area_node+0x125/0x3c0 mm/vmalloc.c:3086 __vmalloc_node_range+0x3df/0x1490 mm/vmalloc.c:3778 __vmalloc_node mm/vmalloc.c:3883 [inline] vmalloc+0x79/0x90 mm/vmalloc.c:3916 bpf_prog_calc_tag+0xcf/0x900 kernel/bpf/core.c:301 resolve_pseudo_ldimm64+0xdf/0x1690 kernel/bpf/verifier.c:18211 bpf_check+0x6195/0x19a20 kernel/bpf/verifier.c:21292 bpf_prog_load+0x1667/0x20f0 kernel/bpf/syscall.c:2895 __sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5660 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5765 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8ce4e7dea9 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:00007f8ce5baa0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f8ce4fabf80 RCX: 00007f8ce4e7dea9 RDX: 0000000000000090 RSI: 0000000020000280 RDI: 0000000000000005 RBP: 00007f8ce4eca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8ce4fabf80 R15: 00007ffe1186b508 ---------------- Code disassembly (best guess): 0: 85 d2 test %edx,%edx 2: 75 14 jne 0x18 4: e9 9a 00 00 00 jmp 0xa3 9: 41 b8 05 00 00 00 mov $0x5,%r8d f: 4d 85 d2 test %r10,%r10 12: 0f 84 8b 00 00 00 je 0xa3 18: 4c 8b 4c 24 20 mov 0x20(%rsp),%r9 1d: 65 4c 8b 1c 25 c0 d3 mov %gs:0x3d3c0,%r11 24: 03 00 26: 31 d2 xor %edx,%edx 28: eb 08 jmp 0x32 * 2a: 48 ff c2 inc %rdx <-- trapping instruction 2d: 49 39 d2 cmp %rdx,%r10 30: 74 71 je 0xa3 32: 4c 8b 74 d6 10 mov 0x10(%rsi,%rdx,8),%r14 37: 65 8b 05 a4 cd 6d 7e mov %gs:0x7e6dcda4(%rip),%eax # 0x7e6dcde2 3e: a9 .byte 0xa9