rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8430/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=21497, q=3261 ncpus=2)
task:syz.6.603       state:R  running task     stack:23512 pid:8430  tgid:8427  ppid:6742   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x184f/0x4c30 kernel/sched/core.c:6690
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7012
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__local_bh_disable_ip+0xa/0x220 kernel/softirq.c:304
Code: f3 0f 1e fa e9 f7 37 49 00 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 00 41 89 f7 48
RSP: 0018:ffffc9000f5bf8e8 EFLAGS: 00000246
RAX: 1ffff92001eb7f5a RBX: ffffc9000f5bfa90 RCX: 0000000000040000
RDX: ffffc900184eb000 RSI: 0000000000000200 RDI: ffffffff89d5e970
RBP: ffffc9000f5bf8f0 R08: ffffffff89d6450b R09: 1ffff11004468780
R10: dffffc0000000000 R11: ffffed1004468781 R12: ffff888022345408
R13: dffffc0000000000 R14: 1ffff11004468a81 R15: ffffc9000f60b030
 local_bh_disable include/linux/bottom_half.h:20 [inline]
 bpf_test_run+0x404/0xa90 net/bpf/test_run.c:428
 bpf_prog_test_run_skb+0xca2/0x1820 net/bpf/test_run.c:1095
 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4266
 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5671
 __do_sys_bpf kernel/bpf/syscall.c:5760 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5758 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5758
 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: 0033:0x7f0adbb7e719
RSP: 002b:00007f0adc8e1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f0adbd36058 RCX: 00007f0adbb7e719
RDX: 0000000000000050 RSI: 00000000200002c0 RDI: 000000000000000a
RBP: 00007f0adbbf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0adbd36058 R15: 00007fff6a022738
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10504 jiffies! g21497 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=10656
rcu: rcu_preempt kthread starved for 10536 jiffies! g21497 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24496 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x184f/0x4c30 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 8433 Comm: syz.6.603 Not tainted 6.12.0-rc6-syzkaller-01561-ga71c69f51d11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:xas_store+0x9f/0x1890 lib/xarray.c:790
Code: 48 81 fd 01 10 00 00 0f 92 c1 48 81 fd 06 04 00 00 0f 95 c2 08 c1 20 d1 0f b6 f1 4c 89 e7 e8 78 e4 ff ff eb 0d e8 51 07 d0 f5 <4c> 89 e7 e8 19 cc ff ff 48 89 44 24 60 4d 8d 7c 24 18 4c 89 fd 48
RSP: 0018:ffffc9000efaf850 EFLAGS: 00000246
RAX: ffffffff8bc4d30f RBX: 1ffff92001df5f24 RCX: 0000000000040000
RDX: ffffc90018b99000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffc9000efaf957 R09: 0000000000000000
R10: ffffc9000efaf940 R11: fffff52001df5f2b R12: ffffc9000efaf920
R13: dffffc0000000000 R14: ffffc9000efaf920 R15: ffffc9000efaf938
FS:  00007f0adc8c06c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002c80 CR3: 0000000064900000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 __xa_erase+0x135/0x220 lib/xarray.c:1511
 sock_devmem_dontneed+0x37b/0x740 net/core/sock.c:1084
 sk_setsockopt+0x73c/0x33b0 net/core/sock.c:1275
 do_sock_setsockopt+0x2fb/0x720 net/socket.c:2332
 __sys_setsockopt+0x1a2/0x250 net/socket.c:2359
 __do_sys_setsockopt net/socket.c:2368 [inline]
 __se_sys_setsockopt net/socket.c:2365 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2365
 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: 0033:0x7f0adbb7e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0adc8c0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f0adbd36130 RCX: 00007f0adbb7e719
RDX: 0000000000000050 RSI: 0000000000000001 RDI: 0000000000000007
RBP: 00007f0adbbf175e R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0adbd36130 R15: 00007fff6a022738
 </TASK>