rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=38145, q=213 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295006554-4294996052), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g38145 f0x2 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:26488 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </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 PID: 9693 Comm: syz-executor.4 Not tainted 6.4.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x85/0x290 mm/kasan/generic.c:187
Code: df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 0f 85 c4 01 00 00 <49> ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf 41 83 e7 07 0f 84
RSP: 0018:ffffc900001e0738 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff2065671 RCX: ffffffff816bd189
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9032b388
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff2065671
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807ee80b10 R14: fffffbfff2065672 R15: ffff88807ee80b10
FS:  00007fc14437e700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002057eff8 CR3: 0000000038fca000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3759 [inline]
 validate_chain+0x119/0x58f0 kernel/locking/lockdep.c:3815
 __lock_acquire+0x1316/0x2070 kernel/locking/lockdep.c:5088
 lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5705
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:350 [inline]
 advance_sched+0xae/0xc80 net/sched/sch_taprio.c:932
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x59f/0xd10 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:memcg_list_lru_alloc+0x4f1/0xd20 mm/list_lru.c:496
Code: 18 00 4c 89 3b 4c 8b 7c 24 70 49 81 c7 10 01 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 82 72 18 00 4d 8b 3f <48> 8b 44 24 30 ff c0 48 89 44 24 30 4d 85 ff 48 8d 9c 24 c0 00 00
RSP: 0018:ffffc90005aff920 EFLAGS: 00000246
RAX: 1ffff1100f77e822 RBX: ffff8880196b0a00 RCX: 0000000000040000
RDX: ffffc90013044000 RSI: 0000000000006eba RDI: 0000000000006ebb
RBP: ffffc90005affa88 R08: ffffffff81caf4dd R09: fffffbfff1cabbc6
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffffc90005aff9f8 R14: 0000000000000003 R15: ffff888015a54000
 memcg_slab_pre_alloc_hook mm/slab.h:457 [inline]
 slab_pre_alloc_hook+0x247/0x2b0 mm/slab.h:675
 slab_alloc_node mm/slub.c:3433 [inline]
 slab_alloc mm/slub.c:3459 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3466 [inline]
 kmem_cache_alloc_lru+0x4e/0x2e0 mm/slub.c:3482
 alloc_inode_sb include/linux/fs.h:2705 [inline]
 v9fs_alloc_inode+0x52/0xc0 fs/9p/vfs_inode.c:229
 alloc_inode fs/inode.c:260 [inline]
 new_inode_pseudo+0x65/0x1d0 fs/inode.c:1018
 new_inode+0x29/0x1d0 fs/inode.c:1046
 v9fs_get_inode+0x4d/0x100 fs/9p/vfs_inode.c:352
 v9fs_mount+0x6dd/0xc60 fs/9p/vfs_super.c:143
 legacy_get_tree+0xef/0x190 fs/fs_context.c:610
 vfs_get_tree+0x8c/0x270 fs/super.c:1510
 do_new_mount+0x28f/0xae0 fs/namespace.c:3039
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc14368c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc14437e168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc1437abf80 RCX: 00007fc14368c389
RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000
RBP: 00007fc1436d7493 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1242859f R14: 00007fc14437e300 R15: 0000000000022000
 </TASK>