------------[ cut here ]------------
WARNING: kernel/rcu/tree_stall.h:1049 at rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:1049, CPU#0: syz.0.910/9852
Modules linked in:
CPU: 0 UID: 0 PID: 9852 Comm: syz.0.910 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:1049
Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 c0 32 bc 9a e8 50 f0 84 00 b8 01 00 00 00 87 05 85 42 19 19 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 c7 c3 74 81 87 90 48 81 fd 40 44 3d 8e 74 5a 48 b8 00
RSP: 0000:ffffc9000c6b7d28 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff81a2f030
RDX: fffffbfff3578658 RSI: 0000000000000004 RDI: ffffffff9abc32c0
RBP: ffffffff8e3d4440 R08: 0000000000000001 R09: fffffbfff3578658
R10: 0000000000000003 R11: 00000000ffffffff R12: 1ffffffff1c02250
R13: 0000000000000246 R14: ffffffff8e3d4440 R15: ffff8880b843bc52
FS:  00007f0322bcd6c0(0000) GS:ffff888124956000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c28e83f98 CR3: 0000000058462000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_check_gp_start_stall kernel/rcu/tree_stall.h:1012 [inline]
 rcu_core+0x4cf/0x1500 kernel/rcu/tree.c:2852
 handle_softirqs+0x219/0x8b0 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1056
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0033:0x7f032498f749
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:00007f0322bcd0e8 EFLAGS: 00000246
RAX: ffffffffffffffda RBX: 00007f0324be6098 RCX: 00007f032498f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0324be6098
RBP: 00007f0324be6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0324be6128 R14: 00007ffd62696280 R15: 00007ffd62696368
 </TASK>