============================================
WARNING: possible recursive locking detected
5.15.164-syzkaller #0 Not tainted
--------------------------------------------
syz.4.90/3988 is trying to acquire lock:
ffff8880b9b35bb8 (lock#9){+.+.}-{2:2}, at: local_lock_acquire+0xd/0x170 include/linux/local_lock_internal.h:28

but task is already holding lock:
ffff8880b9b35bb8 (lock#9){+.+.}-{2:2}, at: local_lock_acquire+0xd/0x170 include/linux/local_lock_internal.h:28

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(lock#9);
  lock(lock#9);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

5 locks held by syz.4.90/3988:
 #0: ffff88807dea0128 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 #0: ffff88807dea0128 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1298 [inline]
 #0: ffff88807dea0128 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 #0: ffff88807dea0128 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x181/0x700 arch/x86/mm/fault.c:1501
 #1: ffff8880b9b35bb8 (lock#9){+.+.}-{2:2}
, at: local_lock_acquire+0xd/0x170 include/linux/local_lock_internal.h:28
 #2: ffffffff8c91fb20
 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
 #3: ffffffff8c91fb20 (rcu_read_lock){....}-{1:2}
, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311
 #4: ffff88807dea0128
 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x23e/0x930 kernel/bpf/stackmap.c:185

stack backtrace:
CPU: 1 PID: 3988 Comm: syz.4.90 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 print_deadlock_bug kernel/locking/lockdep.c:2946 [inline]
 check_deadlock kernel/locking/lockdep.c:2989 [inline]
 validate_chain+0x46d2/0x5930 kernel/locking/lockdep.c:3775
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012
 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/0x694
 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_run4+0x1ea/0x390 kernel/trace/bpf_trace.c:1919
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:44 [inline]
 __mmap_lock_do_trace_acquire_returned+0x2d6/0x340 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]
 do_user_addr_fault arch/x86/mm/fault.c:1298 [inline]
 handle_page_fault arch/x86/mm/fault.c:1445 [inline]
 exc_page_fault+0x564/0x700 arch/x86/mm/fault.c:1501
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7f638d7cd596
Code: 00 48 89 df 48 89 54 24 10 83 c5 01 e8 23 c0 fe ff 48 8b 43 38 48 8b 54 24 10 41 83 c7 01 83 43 28 08 48 8d 48 f8 48 89 4b 38 <48> 89 50 f8 45 3b 7d 04 0f 82 68 fe ff ff e9 00 ff ff ff 0f 1f 80
RSP: 002b:00007ffe87a198e0 EFLAGS: 00010202

RAX: 0000001b3351f000 RBX: 00007f638e5ba720 RCX: 0000001b3351eff8
RDX: ffffffff84300ae2 RSI: 0000000000000008 RDI: 00007f638e5ba720
RBP: 00000000000001f3 R08: 00007f638da75000 R09: 00007f638da77000
R10: 0000000084300ae6 R11: 0000000000000005 R12: ffffffff84300750
R13: 00007f638da8b018 R14: 0000000000000008 R15: 0000000000000340
 </TASK>