rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=d67/1/0x4000000000000000 softirq=164186/164186 fqs=0 
	(detected by 0, t=10506 jiffies, g=230261, q=388)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2963 Comm: udevd Not tainted 5.15.139-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:__lock_acquire+0x41/0x1ff0 kernel/locking/lockdep.c:4878
Code: 41 89 ce 89 d3 89 f5 65 4c 8b 2d aa eb 9f 7e 48 c7 c0 44 c7 e3 8d 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 0f b6 04 10 84 c0 <48> 89 7c 24 08 0f 85 3f 16 00 00 83 3d 01 43 81 0c 00 0f 84 ec 14
RSP: 0018:ffffc90000dd0a60 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8c91f060
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff88807df23b80 R14: 0000000000000002 R15: 0000000000000000
FS:  00007fc6ded28c80(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000000242cc000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
 rcu_read_lock include/linux/rcupdate.h:696 [inline]
 advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:58 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:357 [inline]
RIP: 0010:unwind_next_frame+0xac4/0x1fa0 arch/x86/kernel/unwind_orc.c:539
Code: c1 e8 03 80 3c 10 00 74 0f e8 48 67 91 00 48 ba 00 00 00 00 00 fc ff df 48 89 5c 24 58 49 8b 6f 10 48 8b 44 24 38 0f b6 04 10 <84> c0 0f 85 80 0f 00 00 48 8b 04 24 48 8d 58 f8 41 83 3f 00 74 18
RSP: 0018:ffffc90002caf368 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8e642aa9 RCX: ffffffff8df94348
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90002caf430
RBP: ffffc90002cb0000 R08: 0000000000000001 R09: ffffc90002caf510
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1cc8555
R13: 1ffffffff1cc8555 R14: ffffc90002ca8000 R15: ffffc90002caf420
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 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+0x8e/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 lsm_file_alloc security/security.c:574 [inline]
 security_file_alloc+0x24/0x120 security/security.c:1530
 __alloc_file+0xc3/0x240 fs/file_table.c:106
 alloc_empty_file+0x92/0x180 fs/file_table.c:150
 path_openat+0xfc/0x2f20 fs/namei.c:3658
 do_filp_open+0x21c/0x460 fs/namei.c:3699
 do_sys_openat2+0x13b/0x500 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_openat fs/open.c:1243 [inline]
 __se_sys_openat fs/open.c:1238 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1238
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc6dee539a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe9109e430 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005565ab4c0040 RCX: 00007fc6dee539a4
RDX: 0000000000080141 RSI: 00005565ab4a30d8 RDI: 00000000ffffff9c
RBP: 00005565ab4a30d8 R08: 00000000ffffffff R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000246 R12: 0000000000080141
R13: ffffffffffffffff R14: 00000000ffffffff R15: 00000000ffffffff
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g230261 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=137084
rcu: rcu_preempt kthread starved for 10506 jiffies! g230261 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26936 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
 rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1959
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2132
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </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: 2963 Comm: udevd Not tainted 5.15.139-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:validate_chain+0xb8/0x58b0 kernel/locking/lockdep.c:3743
Code: f2 f2 f2 f2 f2 00 00 00 4a 89 44 21 17 48 b8 f2 f2 f2 f2 f2 00 f3 f3 4a 89 44 21 23 48 89 8c 24 98 00 00 00 42 c6 44 21 2b f3 <48> 89 b4 24 a8 00 00 00 4c 8d 6e 20 4c 89 e8 48 c1 e8 03 48 89 44
RSP: 0018:ffffc90000dd07a0 EFLAGS: 00000806
RAX: f3f300f2f2f2f2f2 RBX: ffffffff8f8c5f00 RCX: 1ffff920001ba114
RDX: 0000000000000001 RSI: ffff88807df24670 RDI: ffff88807df23b80
RBP: ffffc90000dd0a50 R08: dffffc0000000000 R09: fffffbfff1f79c21
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807df24668 R14: 8344e4648cc44188 R15: ffff88807df24690
FS:  00007fc6ded28c80(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000000242cc000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5011
 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
 rcu_read_lock include/linux/rcupdate.h:696 [inline]
 advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:58 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:357 [inline]
RIP: 0010:unwind_next_frame+0xac4/0x1fa0 arch/x86/kernel/unwind_orc.c:539
Code: c1 e8 03 80 3c 10 00 74 0f e8 48 67 91 00 48 ba 00 00 00 00 00 fc ff df 48 89 5c 24 58 49 8b 6f 10 48 8b 44 24 38 0f b6 04 10 <84> c0 0f 85 80 0f 00 00 48 8b 04 24 48 8d 58 f8 41 83 3f 00 74 18
RSP: 0018:ffffc90002caf368 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8e642aa9 RCX: ffffffff8df94348
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90002caf430
RBP: ffffc90002cb0000 R08: 0000000000000001 R09: ffffc90002caf510
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1cc8555
R13: 1ffffffff1cc8555 R14: ffffc90002ca8000 R15: ffffc90002caf420
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 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+0x8e/0xc0 mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x53/0x380 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 lsm_file_alloc security/security.c:574 [inline]
 security_file_alloc+0x24/0x120 security/security.c:1530
 __alloc_file+0xc3/0x240 fs/file_table.c:106
 alloc_empty_file+0x92/0x180 fs/file_table.c:150
 path_openat+0xfc/0x2f20 fs/namei.c:3658
 do_filp_open+0x21c/0x460 fs/namei.c:3699
 do_sys_openat2+0x13b/0x500 fs/open.c:1211
 do_sys_open fs/open.c:1227 [inline]
 __do_sys_openat fs/open.c:1243 [inline]
 __se_sys_openat fs/open.c:1238 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1238
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc6dee539a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe9109e430 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005565ab4c0040 RCX: 00007fc6dee539a4
RDX: 0000000000080141 RSI: 00005565ab4a30d8 RDI: 00000000ffffff9c
RBP: 00005565ab4a30d8 R08: 00000000ffffffff R09: 0000000000000000
R10: 00000000000001a4 R11: 0000000000000246 R12: 0000000000080141
R13: ffffffffffffffff R14: 00000000ffffffff R15: 00000000ffffffff
 </TASK>