================================ WARNING: inconsistent lock state 5.15.164-syzkaller #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz.1.857/7000 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9a35bb8 (lock#11){?.+.}-{2:2}, at: local_lock_acquire+0xd/0x170 include/linux/local_lock_internal.h:28 {HARDIRQ-ON-W} state was registered at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 local_lock_acquire+0x29/0x170 include/linux/local_lock_internal.h:29 __mmap_lock_do_trace_acquire_returned+0x7c/0x340 mm/mmap_lock.c:237 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline] mmap_write_lock_killable include/linux/mmap_lock.h:88 [inline] vm_mmap_pgoff+0x2b0/0x2d0 mm/util.c:549 ksys_mmap_pgoff+0x13e/0x780 mm/mmap.c:1624 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 irq event stamp: 26 hardirqs last enabled at (25): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (25): [] _raw_spin_unlock_irqrestore+0x8b/0x130 kernel/locking/spinlock.c:194 hardirqs last disabled at (26): [] sysvec_call_function_single+0xa/0xb0 arch/x86/kernel/smp.c:243 softirqs last enabled at (0): [] copy_process+0x13b9/0x3ef0 kernel/fork.c:2151 softirqs last disabled at (0): [<0000000000000000>] 0x0 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(lock#11); lock(lock#11); *** DEADLOCK *** 3 locks held by syz.1.857/7000: #0: ffffffff8cea9878 (tomoyo_ss){....}-{0:0}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311 #1: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311 #2: ffff88807e074e28 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #2: ffff88807e074e28 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x23e/0x930 kernel/bpf/stackmap.c:185 stack backtrace: CPU: 0 PID: 7000 Comm: syz.1.857 Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 valid_state+0x134/0x1c0 kernel/locking/lockdep.c:3932 mark_lock_irq+0xa8/0xba0 kernel/locking/lockdep.c:4135 mark_lock+0x21a/0x340 kernel/locking/lockdep.c:4591 mark_usage kernel/locking/lockdep.c:4483 [inline] __lock_acquire+0xb5c/0x1ff0 kernel/locking/lockdep.c:4966 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 local_lock_acquire+0x29/0x170 include/linux/local_lock_internal.h:29 __mmap_lock_do_trace_acquire_returned+0x7c/0x340 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+0x612/0x930 kernel/bpf/stackmap.c:185 __bpf_get_stack+0x495/0x570 kernel/bpf/stackmap.c:496 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1490 [inline] bpf_get_stack_raw_tp+0x1b2/0x220 kernel/trace/bpf_trace.c:1480 bpf_prog_ec3b2eefa702d8d3+0x3a/0xa44 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run2+0x19e/0x340 kernel/trace/bpf_trace.c:1917 trace_tlb_flush+0xed/0x110 include/trace/events/tlb.h:38 flush_tlb_func+0x480/0x590 arch/x86/mm/tlb.c:851 flush_smp_call_function_queue+0x2b5/0x760 kernel/smp.c:628 __sysvec_call_function_single+0x9a/0x250 arch/x86/kernel/smp.c:248 sysvec_call_function_single+0x89/0xb0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x16/0x20 arch/x86/include/asm/idtentry.h:646 RIP: 0010:unwind_next_frame+0xa2/0x1fa0 Code: 8b 67 38 4c 89 fb 48 c1 eb 03 0f b6 04 03 84 c0 0f 85 68 17 00 00 41 8b 07 85 c0 0f 84 4e 16 00 00 89 44 24 74 48 89 6c 24 40 <4c> 89 64 24 78 4c 89 74 24 50 48 89 5c 24 38 bf 01 00 00 00 e8 d5 RSP: 0018:ffffc90003367688 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 1ffff9200066cee8 RCX: 1ffff9200066ceef RDX: dffffc0000000000 RSI: ffffffff8a4000ca RDI: ffffc90003367740 RBP: ffffc90003367778 R08: 0000000000000009 R09: ffffc90003367830 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90003367f58 R13: ffffffff816dfa30 R14: ffffffff8a4000ca R15: ffffc90003367740 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4b/0x80 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0xf1/0x270 mm/slub.c:4559 tomoyo_path_number_perm+0x648/0x810 security/tomoyo/file.c:736 security_file_ioctl+0x6d/0xa0 security/security.c:1555 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl+0x47/0x160 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f208d8d55fb Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 RSP: 002b:00007f208bd54060 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f208d8d55fb RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8 RBP: 00007f208da63f80 R08: 0000000000000000 R09: 00007ffd37612dd7 R10: 0000000000000008 R11: 0000000000000246 R12: 00007f208da63f8c R13: 0000000000000001 R14: 00007ffd37612cf0 R15: 00007ffd37612dd8 ---------------- Code disassembly (best guess): 0: 8b 67 38 mov 0x38(%rdi),%esp 3: 4c 89 fb mov %r15,%rbx 6: 48 c1 eb 03 shr $0x3,%rbx a: 0f b6 04 03 movzbl (%rbx,%rax,1),%eax e: 84 c0 test %al,%al 10: 0f 85 68 17 00 00 jne 0x177e 16: 41 8b 07 mov (%r15),%eax 19: 85 c0 test %eax,%eax 1b: 0f 84 4e 16 00 00 je 0x166f 21: 89 44 24 74 mov %eax,0x74(%rsp) 25: 48 89 6c 24 40 mov %rbp,0x40(%rsp) * 2a: 4c 89 64 24 78 mov %r12,0x78(%rsp) <-- trapping instruction 2f: 4c 89 74 24 50 mov %r14,0x50(%rsp) 34: 48 89 5c 24 38 mov %rbx,0x38(%rsp) 39: bf 01 00 00 00 mov $0x1,%edi 3e: e8 .byte 0xe8 3f: d5 (bad)