rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6232/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=14165, q=574 ncpus=2)
task:dhcpcd          state:R  running task     stack:24568 pid:6232  tgid:6232  ppid:5496   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5258 [inline]
 __schedule+0x150e/0x5070 kernel/sched/core.c:6866
 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7193
 irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:110 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:238 [inline]
RIP: 0010:unwind_next_frame+0x2b4/0x23d0 arch/x86/kernel/unwind_orc.c:510
Code: 00 00 fc ff df 0f 84 1c 04 00 00 4a 8d 14 ad 24 f3 b3 8f 45 29 e8 4a 8d 1c 82 48 83 c3 fc 49 89 d5 48 39 da 0f 86 21 02 00 00 <49> 29 d5 49 c1 fd 02 4a 8d 04 6d 00 00 00 00 4c 01 e8 48 8d 14 46
RSP: 0018:ffffc90003f5f818 EFLAGS: 00000202
RAX: ffffffff9012a694 RBX: ffffffff9012a698 RCX: ffffffff9012a69c
RDX: ffffffff9012a698 RSI: ffffffff90ba839e RDI: ffffffff8be07900
RBP: ffffffff9012a69c R08: 0000000000000009 R09: ffffffff8e13f2e0
R10: ffffc90003f5f938 R11: ffffffff81ad9d50 R12: ffffffff8931e920
R13: ffffffff9012a698 R14: ffffc90003f5f8e8 R15: ffffffff9012a698
 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5661 [inline]
 __kmalloc_noprof+0x41d/0x800 mm/slub.c:5673
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 lsm_blob_alloc security/security.c:192 [inline]
 lsm_sock_alloc security/security.c:4375 [inline]
 security_sk_alloc+0x52/0x390 security/security.c:4391
 sk_prot_alloc+0x101/0x220 net/core/sock.c:2248
 sk_alloc+0x3a/0x390 net/core/sock.c:2301
 packet_create+0xff/0x780 net/packet/af_packet.c:3348
 __sock_create+0x4e4/0x960 net/socket.c:1620
 sock_create net/socket.c:1678 [inline]
 __sys_socket_create net/socket.c:1715 [inline]
 __sys_socket+0xda/0x310 net/socket.c:1762
 __do_sys_socket net/socket.c:1776 [inline]
 __se_sys_socket net/socket.c:1774 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1774
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa646a3a707
RSP: 002b:00007ffff9ace668 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00005600826e6670 RCX: 00007fa646a3a707
RDX: 0000000000000300 RSI: 0000000000080803 RDI: 0000000000000011
RBP: 00005600674274b0 R08: 00007fa646b09ac0 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000206 R12: 0000000000000000
R13: 00005600826e08a0 R14: 0000000000000000 R15: 000056006743cac0
 </TASK>
rcu: rcu_preempt kthread starved for 10542 jiffies! g14165 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27480 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5258 [inline]
 __schedule+0x150e/0x5070 kernel/sched/core.c:6866
 __schedule_loop kernel/sched/core.c:6948 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6963
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:82
Code: cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 9e 2a 00 f3 0f 1e fa fb f4 <e9> 48 ee 02 00 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff8de07d80 EFLAGS: 000002c6
RAX: d6bfb500e11f5600 RBX: ffffffff819786ba RCX: d6bfb500e11f5600
RDX: 0000000000000001 RSI: ffffffff8d997e54 RDI: ffffffff8be07960
RBP: ffffffff8de07ea8 R08: ffff8880b86336db R09: 1ffff110170c66db
R10: dffffc0000000000 R11: ffffed10170c66dc R12: ffffffff8fa22f70
R13: 1ffffffff1bd29b8 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa646a8f040 CR3: 0000000072976000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x73/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1ea/0x520 kernel/sched/idle.c:332
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:430
 rest_init+0x2de/0x300 init/main.c:758
 start_kernel+0x3ac/0x400 init/main.c:1208
 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x143/0x1c0 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x147
 </TASK>