================================ WARNING: inconsistent lock state 5.15.156-syzkaller #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.1/14889 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9a35bb8 (lock#9){?.+.}-{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+0x559/0x780 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: 36 hardirqs last enabled at (35): [] seqcount_lockdep_reader_access+0x149/0x220 include/linux/seqlock.h:104 hardirqs last disabled at (36): [] 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#9); lock(lock#9); *** DEADLOCK *** 4 locks held by syz-executor.1/14889: #0: ffffffff8cea9358 (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: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311 #3: ffff888078e3d528 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #3: ffff888078e3d528 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x23e/0x930 kernel/bpf/stackmap.c:185 stack backtrace: CPU: 0 PID: 14889 Comm: syz-executor.1 Not tainted 5.15.156-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+0x1e3/0x2d0 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_e6cf5f9c69743609+0x3a/0x6d8 bpf_dispatcher_nop_func include/linux/bpf.h:785 [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:native_irq_enable arch/x86/include/asm/irqflags.h:45 [inline] RIP: 0010:arch_local_irq_enable arch/x86/include/asm/irqflags.h:80 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:140 [inline] RIP: 0010:seqcount_lockdep_reader_access+0x1d2/0x220 include/linux/seqlock.h:105 Code: 5e e8 32 47 9c ff 4d 85 f6 48 bb 00 00 00 00 00 fc ff df 75 07 e8 1e 47 9c ff eb 06 e8 17 47 9c ff fb 48 c7 04 24 0e 36 e0 45 <4a> c7 04 23 00 00 00 00 66 42 c7 44 23 09 00 00 42 c6 44 23 0b 00 RSP: 0018:ffffc90002ca7820 EFLAGS: 00000293 RAX: ffffffff81e415c9 RBX: dffffc0000000000 RCX: ffff88801bd90000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002ca78d0 R08: ffffffff81e415a4 R09: fffffbfff1bc8b5e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000594f04 R13: ffffc90002ca7840 R14: 0000000000000200 R15: 0000000000000046 read_seqbegin include/linux/seqlock.h:840 [inline] read_seqbegin_or_lock include/linux/seqlock.h:1144 [inline] __dentry_path+0x13a/0x600 fs/d_path.c:343 dentry_path_raw+0x13d/0x210 fs/d_path.c:369 tomoyo_get_dentry_path security/tomoyo/realpath.c:131 [inline] tomoyo_get_local_path+0xce/0x7a0 security/tomoyo/realpath.c:157 tomoyo_realpath_from_path+0x2a2/0x5e0 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_number_perm+0x225/0x810 security/tomoyo/file.c:723 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: 0033:0x7ff12afb3c0b 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:00007ff1295260f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff12afb3c0b RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8 RBP: 00007ff12b0e1f80 R08: 0000000000000000 R09: 00007ffca32ada37 R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffb0 R13: 000000000000000b R14: 00007ffca32ad950 R15: 00007ffca32ada38 ---------------- Code disassembly (best guess): 0: 5e pop %rsi 1: e8 32 47 9c ff call 0xff9c4738 6: 4d 85 f6 test %r14,%r14 9: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx 10: fc ff df 13: 75 07 jne 0x1c 15: e8 1e 47 9c ff call 0xff9c4738 1a: eb 06 jmp 0x22 1c: e8 17 47 9c ff call 0xff9c4738 21: fb sti 22: 48 c7 04 24 0e 36 e0 movq $0x45e0360e,(%rsp) 29: 45 * 2a: 4a c7 04 23 00 00 00 movq $0x0,(%rbx,%r12,1) <-- trapping instruction 31: 00 32: 66 42 c7 44 23 09 00 movw $0x0,0x9(%rbx,%r12,1) 39: 00 3a: 42 c6 44 23 0b 00 movb $0x0,0xb(%rbx,%r12,1)