================================ WARNING: inconsistent lock state 6.1.93-syzkaller #0 Not tainted -------------------------------- inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. syz-executor.0/4491 [HC1[1]:SC0[0]:HE0:SE1] takes: ffff8880b9835e90 (lock#10){?.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline] ffff8880b9835e90 (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_write_lock_killable include/linux/mmap_lock.h:88 [inline] dup_mmap kernel/fork.c:593 [inline] dup_mm kernel/fork.c:1540 [inline] copy_mm+0x192e/0x19c0 kernel/fork.c:1589 copy_process+0x19d5/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2807 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): [] kasan_quarantine_put+0xd4/0x220 mm/kasan/quarantine.c:242 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 *** 3 locks held by syz-executor.0/4491: #0: ffffffff8d718ea8 (tomoyo_ss){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d718ea8 (tomoyo_ss){....}-{0:0}, at: srcu_read_lock include/linux/srcu.h:165 [inline] #0: ffffffff8d718ea8 (tomoyo_ss){....}-{0:0}, at: tomoyo_read_lock security/tomoyo/common.h:1110 [inline] #0: ffffffff8d718ea8 (tomoyo_ss){....}-{0:0}, at: tomoyo_path_number_perm+0x1f2/0x7f0 security/tomoyo/file.c:722 #1: ffffffff8d12acc0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #1: ffffffff8d12acc0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #1: ffffffff8d12acc0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2272 [inline] #1: ffffffff8d12acc0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x110/0x410 kernel/trace/bpf_trace.c:2312 #2: ffff88807db426d8 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline] #2: ffff88807db426d8 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x232/0x9c0 kernel/bpf/stackmap.c:144 stack backtrace: CPU: 0 PID: 4491 Comm: syz-executor.0 Not tainted 6.1.93-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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_ec3b2eefa702d8d3+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 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:number+0x76c/0xf80 lib/vsprintf.c:546 Code: e9 e5 01 00 00 e8 84 d7 04 f7 48 8b 04 24 29 d8 83 c0 fe 48 89 04 24 49 ff c7 49 bd 00 00 00 00 00 fc ff df 8b 5c 24 20 eb 33 5f d7 04 f7 89 d8 48 89 04 24 49 bd 00 00 00 00 00 fc ff df e9 RSP: 0018:ffffc900031ef8e0 EFLAGS: 00000287 RAX: 0000000000000000 RBX: 00000000fffffff9 RCX: ffff8880787b0000 RDX: ffff8880787b0000 RSI: 00000000fffffff9 RDI: 00000000ffffffff RBP: ffffc900031ef9f0 R08: ffffffff8a85bad1 R09: ffffc900031ef960 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000004 R13: 00000000fffffffa R14: 0000000000000004 R15: ffffc900031efc82 vsnprintf+0x12b6/0x1c70 lib/vsprintf.c:2871 snprintf+0xd6/0x120 lib/vsprintf.c:2940 tomoyo_audit_path_number_log security/tomoyo/file.c:233 [inline] tomoyo_path_number_perm+0x4b1/0x7f0 security/tomoyo/file.c:734 security_file_ioctl+0x6d/0xa0 security/security.c:1568 __do_sys_ioctl fs/ioctl.c:864 [inline] __se_sys_ioctl+0x47/0x160 fs/ioctl.c:856 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: 0033:0x7f907de7cc0b 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:00007f907c9f60f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f907de7cc0b RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000d8 RBP: 00007f907dfb3f80 R08: 0000000000000000 R09: 00007ffcb95d4d27 R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffb0 R13: 000000000000000b R14: 00007ffcb95d4c40 R15: 00007ffcb95d4d28 ---------------- Code disassembly (best guess): 0: e9 e5 01 00 00 jmp 0x1ea 5: e8 84 d7 04 f7 call 0xf704d78e a: 48 8b 04 24 mov (%rsp),%rax e: 29 d8 sub %ebx,%eax 10: 83 c0 fe add $0xfffffffe,%eax 13: 48 89 04 24 mov %rax,(%rsp) 17: 49 ff c7 inc %r15 1a: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 21: fc ff df 24: 8b 5c 24 20 mov 0x20(%rsp),%ebx 28: eb 33 jmp 0x5d * 2a: e8 5f d7 04 f7 call 0xf704d78e <-- trapping instruction 2f: 89 d8 mov %ebx,%eax 31: 48 89 04 24 mov %rax,(%rsp) 35: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3c: fc ff df 3f: e9 .byte 0xe9