============================================
WARNING: possible recursive locking detected
6.9.0-syzkaller-12122-g3f8fde319524 #0 Not tainted
--------------------------------------------
syz-executor151/5412 is trying to acquire lock:
ffff88807f5061d8 (&qs->lock){-.-.}-{2:2}, at: __stack_map_get+0x14b/0x4b0 kernel/bpf/queue_stack_maps.c:140
but task is already holding lock:
ffff888029e791d8 (&qs->lock){-.-.}-{2:2}, at: __stack_map_get+0x14b/0x4b0 kernel/bpf/queue_stack_maps.c:140
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(&qs->lock);
lock(&qs->lock);
*** DEADLOCK ***
May be due to missing lock nesting notation
5 locks held by syz-executor151/5412:
#0: ffffffff8e3808a8 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478
#1: ffffffff8e380860 (tracepoints_mutex.wait_lock){+.+.}-{2:2}, at: __mutex_lock_common kernel/locking/mutex.c:706 [inline]
#1: ffffffff8e380860 (tracepoints_mutex.wait_lock){+.+.}-{2:2}, at: __mutex_lock+0x7fc/0xd70 kernel/locking/mutex.c:752
#2: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#2: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#2: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline]
#2: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 kernel/trace/bpf_trace.c:2444
#3: ffff888029e791d8 (&qs->lock){-.-.}-{2:2}, at: __stack_map_get+0x14b/0x4b0 kernel/bpf/queue_stack_maps.c:140
#4: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#4: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#4: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline]
#4: ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 kernel/trace/bpf_trace.c:2444
stack backtrace:
CPU: 1 PID: 5412 Comm: syz-executor151 Not tainted 6.9.0-syzkaller-12122-g3f8fde319524 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_deadlock kernel/locking/lockdep.c:3062 [inline]
validate_chain+0x15d3/0x5900 kernel/locking/lockdep.c:3856
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
__stack_map_get+0x14b/0x4b0 kernel/bpf/queue_stack_maps.c:140
bpf_prog_00798911c748094f+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run2+0x2ec/0x540 kernel/trace/bpf_trace.c:2444
__traceiter_contention_end+0x7b/0xb0 include/trace/events/lock.h:122
trace_contention_end+0x114/0x140 include/trace/events/lock.h:122
__pv_queued_spin_lock_slowpath+0xb81/0xdc0 kernel/locking/qspinlock.c:557
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline]
_raw_spin_lock_irqsave+0xe1/0x120 kernel/locking/spinlock.c:162
__stack_map_get+0x14b/0x4b0 kernel/bpf/queue_stack_maps.c:140
bpf_prog_00798911c748094f+0x42/0x46
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run2+0x2ec/0x540 kernel/trace/bpf_trace.c:2444
__traceiter_contention_end+0x7b/0xb0 include/trace/events/lock.h:122
trace_contention_end+0xf5/0x120 include/trace/events/lock.h:122
__mutex_lock_common kernel/locking/mutex.c:727 [inline]
__mutex_lock+0x991/0xd70 kernel/locking/mutex.c:752
tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478
bpf_raw_tp_link_attach+0x48b/0x6e0 kernel/bpf/syscall.c:3895
bpf_raw_tracepoint_open+0x1c2/0x240 kernel/bpf/syscall.c:3926
__sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5751
__do_sys_bpf kernel/bpf/syscall.c:5816 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5814 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5814
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5eb76dae29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeb5ae09d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5eb76dae29
RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000011
RBP: 0000000000000000 R08: 00000000000000a0 R09: 00000000000000a0
R10: 00000000000000a0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>