rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P4645/1:b..l
	(detected by 0, t=10502 jiffies, g=8401, q=342)
task:syz.4.99        state:R  running task     stack:24096 pid: 4645 ppid:  4184 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6799
 irqentry_exit+0x63/0x70 kernel/entry/common.c:432
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:lock_release+0x584/0x870 kernel/locking/lockdep.c:5647
Code: 00 00 00 00 9c 8f 84 24 80 00 00 00 f6 84 24 81 00 00 00 02 75 75 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 66 43 c7 44 2f 09 00 00 43 c6 44 2f 0b 00
RSP: 0018:ffffc9000333e980 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 9be2421a50ef4013 RCX: 0746c7e95af32a00
RDX: 0000000000000001 RSI: ffffffff8a0b2f00 RDI: ffffffff8a59e580
RBP: ffffc9000333ea90 R08: dffffc0000000000 R09: fffffbfff1ad33a6
R10: fffffbfff1ad33a6 R11: 1ffffffff1ad33a5 R12: ffff88807d17a8d8
R13: dffffc0000000000 R14: ffff88807d17a8a0 R15: 1ffff92000667d3c
 rcu_read_unlock include/linux/rcupdate.h:773 [inline]
 is_bpf_text_address+0x254/0x270 kernel/bpf/core.c:727
 kernel_text_address kernel/extable.c:151 [inline]
 __kernel_text_address+0x9a/0x100 kernel/extable.c:105
 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
 arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x9c/0xd0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3225 [inline]
 slab_alloc mm/slub.c:3233 [inline]
 kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
 kmem_cache_zalloc include/linux/slab.h:728 [inline]
 xfrm_state_alloc+0x1e/0x2a0 net/xfrm/xfrm_state.c:635
 xfrm_state_find+0x1de3/0x2a80 net/xfrm/xfrm_state.c:1145
 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2420 [inline]
 xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:2465 [inline]
 xfrm_resolve_and_create_bundle+0x723/0x2b00 net/xfrm/xfrm_policy.c:2760
 xfrm_lookup_with_ifid+0x268/0x1fd0 net/xfrm/xfrm_policy.c:3094
 xfrm_lookup net/xfrm/xfrm_policy.c:3223 [inline]
 xfrm_lookup_route+0x38/0x1a0 net/xfrm/xfrm_policy.c:3234
 rawv6_sendmsg+0xc1c/0x1710 net/ipv6/raw.c:933
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 ____sys_sendmsg+0x5a2/0x8c0 net/socket.c:2446
 ___sys_sendmsg+0x1f0/0x260 net/socket.c:2500
 __sys_sendmmsg+0x27c/0x4a0 net/socket.c:2586
 __do_sys_sendmmsg net/socket.c:2615 [inline]
 __se_sys_sendmmsg net/socket.c:2612 [inline]
 __x64_sys_sendmmsg+0x9c/0xb0 net/socket.c:2612
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f96fa6ee749
RSP: 002b:00007f96f8955038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f96fa944fa0 RCX: 00007f96fa6ee749
RDX: 00000000000002e9 RSI: 0000200000000480 RDI: 0000000000000004
RBP: 00007f96fa772f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f96fa945038 R14: 00007f96fa944fa0 R15: 00007ffc80237fa8
 </TASK>
rcu: rcu_preempt kthread starved for 9794 jiffies! g8401 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:27808 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x29e/0x11b0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x98/0x350 kernel/rcu/tree.c:2145
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10 arch/x86/kernel/process.c:729