rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (142 ticks this GP) idle=259/1/0x4000000000000002 softirq=22057/22058 fqs=5247 
	(detected by 1, t=10502 jiffies, g=29577, q=1291)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9733 Comm: syz.3.1537 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__srcu_read_lock+0x2/0x80 kernel/rcu/srcutree.c:401
Code: c1 03 38 c1 0f 8c e1 fa ff ff 48 c7 c7 f0 58 89 8d e8 22 93 59 00 e9 d0 fa ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 57 <41> 56 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df 48 81 c7 08 02 00
RSP: 0018:ffffc900000078e8 EFLAGS: 00000002
RAX: ffffffff817f3d1c RBX: 0000000000000000 RCX: ffff888024cdbb80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffffffff8c35bf00
RBP: 0000000000000000 R08: ffffffff8d8956ef R09: 1ffffffff1b12add
R10: dffffc0000000000 R11: fffffbfff1b12ade R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff89e00e46 R15: 0000000000000000
FS:  00007fef2877d6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000ed00000000 CR3: 0000000079256000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 srcu_read_lock_notrace include/linux/srcu.h:174 [inline]
 trace_irq_enable_rcuidle+0xbf/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 12 ff 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900000079e0 EFLAGS: 00000206
RAX: 0568746a1a7eea00 RBX: 1ffff92000000f40 RCX: 0568746a1a7eea00
RDX: dffffc0000000000 RSI: ffffffff8a2b1c00 RDI: ffffffff8a79e740
RBP: ffffc90000007ac0 R08: ffffffff901b71bf R09: 1ffffffff2036e37
R10: dffffc0000000000 R11: fffffbfff2036e38 R12: ffffffff8c320c00
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 hsr_announce+0x29a/0x310 net/hsr/hsr_device.c:410
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x53a/0x7f0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:core_kernel_text kernel/extable.c:104 [inline]
RIP: 0010:kernel_text_address kernel/extable.c:125 [inline]
RIP: 0010:__kernel_text_address+0x3/0x100 kernel/extable.c:105
Code: b1 66 0f 1f 44 00 00 48 81 ff 00 00 00 8c 0f 93 c0 48 81 ff 00 61 8b 8d 0f 92 c1 20 c1 0f b6 c1 c3 66 0f 1f 44 00 00 55 41 57 <41> 56 53 48 81 ff 00 00 00 81 0f 93 c0 48 81 ff c3 7d 00 8a 0f 92
RSP: 0018:ffffc9000341f5d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000341f650 RCX: 0000000080000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff81bdf5df
RBP: ffffc9000341f690 R08: ffffc9000341f667 R09: ffffc9000341f658
R10: dffffc0000000000 R11: fffff52000683ecd R12: ffff888024cdbb80
R13: 1ffff1100499b820 R14: dffffc0000000000 R15: 1ffff92000683eca
 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+0xa6/0xf0 kernel/stacktrace.c:122
 save_stack+0x121/0x230 mm/page_owner.c:119
 __reset_page_owner+0x51/0x180 mm/page_owner.c:140
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
 free_unref_page+0x8f/0x2a0 mm/page_alloc.c:3396
 free_slab mm/slub.c:2020 [inline]
 discard_slab mm/slub.c:2026 [inline]
 __unfreeze_partials+0x1a5/0x200 mm/slub.c:2512
 put_cpu_partial+0x12d/0x190 mm/slub.c:2592
 qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
 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
 sock_alloc_inode+0x17/0xb0 net/socket.c:305
 alloc_inode fs/inode.c:261 [inline]
 new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
 sock_alloc net/socket.c:628 [inline]
 __sock_create+0x129/0x900 net/socket.c:1460
 sock_create net/socket.c:1552 [inline]
 __sys_socket+0xe2/0x170 net/socket.c:1594
 __do_sys_socket net/socket.c:1603 [inline]
 __se_sys_socket net/socket.c:1601 [inline]
 __x64_sys_socket+0x76/0x80 net/socket.c:1601
 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: 0033:0x7fef2a521cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fef2877d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fef2a79cfa0 RCX: 00007fef2a521cb9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fef2a58fbf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fef2a79d038 R14: 00007fef2a79cfa0 R15: 00007fffc45553d8
 </TASK>