rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (1 GPs behind) idle=d454/1/0x4000000000000002 softirq=42666/42668 fqs=2098
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12207
(detected by 1, t=10503 jiffies, g=60445, q=2747 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12207 Comm: syz.4.2116 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:match_held_lock+0x77/0xb0 kernel/locking/lockdep.c:5153
Code: 00 48 c7 c1 00 a1 49 90 48 29 c8 48 c1 f8 06 48 be ab aa aa aa aa aa aa aa 48 0f af f0 b9 01 00 00 00 48 39 d6 74 02 31 c9 5b <89> c8 c3 e8 b1 c0 e1 f9 85 c0 74 f1 83 3d 6e 5f f0 03 00 75 e8 48
RSP: 0018:ffffc90003ce77d8 EFLAGS: 00000046
RAX: 000000000000000a RBX: 000000000000000a RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8cb2db60 RDI: ffff8880545d2930
RBP: ffffc90003ce78f0 R08: ffffffff8e2118af R09: 1ffffffff1c42315
R10: dffffc0000000000 R11: fffffbfff1c42316 R12: ffff8880545d2930
R13: dffffc0000000000 R14: 0000000000000002 R15: 0000000000000002
FS: 0000555560df7500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30215ff8 CR3: 000000007e6bf000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
find_held_lock kernel/locking/lockdep.c:5166 [inline]
__lock_release kernel/locking/lockdep.c:5351 [inline]
lock_release+0x217/0x920 kernel/locking/lockdep.c:5696
rcu_lock_release include/linux/rcupdate.h:355 [inline]
rcu_read_unlock include/linux/rcupdate.h:824 [inline]
trace_call_bpf+0x5ca/0x6b0 kernel/trace/bpf_trace.c:137
perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10027
perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 12 7c 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90003ce7c20 EFLAGS: 00000206
RAX: 7713eca1e6b5f700 RBX: 1ffff9200079cf8c RCX: 7713eca1e6b5f700
RDX: dffffc0000000000 RSI: ffffffff8a8c1820 RDI: ffffffff8adf5fa0
RBP: ffffc90003ce7d18 R08: ffffffff90b1224f R09: 1ffffffff2162449
R10: dffffc0000000000 R11: fffffbfff216244a R12: 0000000000000246
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff8cb33198
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock+0x85/0xa0 include/linux/rcupdate.h:823
dput+0xe2/0x1d0 fs/dcache.c:911
__fput+0x597/0x8b0 fs/file_table.c:328
task_work_run+0x1d0/0x260 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5c43f9e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe486c7f48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffe486c8030 RCX: 00007f5c43f9e0d9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000069ee5 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2f020000 R11: 0000000000000246 R12: 00007ffe486c8070
R13: 00007f5c44225fac R14: 0000000000069fb9 R15: 00007f5c44225fa0
task:syz.4.2116 state:R running task stack:26288 pid:12207 ppid:4274 flags:0x0000400c
Call Trace: