rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5628/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=18189, q=1377 ncpus=2)
task:syz-executor    state:R  running task     stack:21496 pid:5628  tgid:5628  ppid:5622   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:839 [inline]
RIP: 0010:is_bpf_text_address+0x66/0x2b0 kernel/bpf/core.c:747
Code: 48 89 44 24 08 50 e8 d9 f7 cb ff 48 83 c4 08 e8 70 be d1 09 89 c5 31 ff 89 c6 e8 a5 0e f0 ff 85 ed 74 10 e8 ac 20 d5 ff 84 c0 <74> 0e e8 53 0a f0 ff eb 56 e8 4c 0a f0 ff eb 4f e8 45 be d1 09 89
RSP: 0018:ffffc900030a77b0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 00007fc2a235d68e RCX: 0000000080000001
RDX: ffff88807a64be00 RSI: ffffffff8c28b8c0 RDI: ffffffff8c28b880
RBP: 0000000000000001 R08: ffffffff81d5ac06 R09: ffffffff8e95cc20
R10: dffffc0000000000 R11: ffffffff81b0e0e0 R12: ffff88807a64be00
R13: 0000000000000000 R14: 00007fc2a235d68e R15: 1ffff92000614f12
 kernel_text_address+0xa5/0xe0 kernel/extable.c:125
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:385
 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
 __call_rcu_common kernel/rcu/tree.c:3131 [inline]
 call_rcu+0xee/0x890 kernel/rcu/tree.c:3251
 slab_free_hook mm/slub.c:2653 [inline]
 slab_free mm/slub.c:6251 [inline]
 kmem_cache_free+0x462/0x650 mm/slub.c:6378
 sk_prot_free net/core/sock.c:2284 [inline]
 __sk_destruct+0x739/0x9d0 net/core/sock.c:2386
 inet_release+0x143/0x190 net/ipv4/af_inet.c:442
 __sock_release net/socket.c:722 [inline]
 sock_close+0xc3/0x240 net/socket.c:1514
 __fput+0x44f/0xa60 fs/file_table.c:510
 fput_close_sync+0x11f/0x240 fs/file_table.c:615
 __do_sys_close fs/open.c:1507 [inline]
 __se_sys_close fs/open.c:1492 [inline]
 __x64_sys_close+0x7e/0x110 fs/open.c:1492
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc2a235d68e
RSP: 002b:00007ffecba5f788 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000555558110500 RCX: 00007fc2a235d68e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffecba5f82c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001b
R13: 00000000000927c0 R14: 0000000000024cf6 R15: 00007ffecba5f880
 </TASK>
rcu: rcu_preempt kthread starved for 10541 jiffies! g18189 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27544 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7283
 schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
 kthread+0x389/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6377 Comm: syz.5.119 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:check_preemption_disabled+0x14/0xe0 lib/smp_processor_id.c:16
Code: 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 53 65 8b 05 27 be 90 07 65 8b 0d 1c be 90 07 <f7> c1 ff ff ff 7f 74 0c 5b 41 5e 41 5f 5d e9 e4 be 68 f5 cc 9c 59
RSP: 0018:ffffc90007f37870 EFLAGS: 00000087
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000080000003
RDX: 0000000000000000 RSI: ffffffff8c28b8c0 RDI: ffffffff8c28b880
RBP: ffffc90007f37b50 R08: ffffffff90302af7 R09: 1ffffffff206055e
R10: dffffc0000000000 R11: fffffbfff206055f R12: dffffc0000000000
R13: ffff88802c5dcd68 R14: ffff888076469d40 R15: ffff88802c5dcd70
FS:  00007f31790096c0(0000) GS:ffff88812539c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a347ea540 CR3: 0000000077c0e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
 rcu_is_watching+0x15/0xb0 kernel/rcu/tree.c:752
 trace_irq_enable+0x3b/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x18/0x40 kernel/trace/trace_preemptirq.c:73
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline]
 _raw_spin_unlock_irqrestore+0x30/0x80 kernel/locking/spinlock.c:198
 unix_stream_data_wait net/unix/af_unix.c:2744 [inline]
 unix_stream_read_generic+0x198c/0x2300 net/unix/af_unix.c:3000
 unix_stream_recvmsg+0x16b/0x1d0 net/unix/af_unix.c:3162
 sock_recvmsg_nosec net/socket.c:1137 [inline]
 sock_recvmsg+0x172/0x1b0 net/socket.c:1159
 __sys_recvfrom+0x240/0x3c0 net/socket.c:2315
 __do_sys_recvfrom net/socket.c:2330 [inline]
 __se_sys_recvfrom net/socket.c:2326 [inline]
 __x64_sys_recvfrom+0xde/0x100 net/socket.c:2326
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f317819ce59
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:00007f3179009028 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 00007f3178415fa0 RCX: 00007f317819ce59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007f3178232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010102 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3178416038 R14: 00007f3178415fa0 R15: 00007ffd1ef739a8
 </TASK>