------------[ cut here ]------------
WARNING: kernel/rcu/tree_stall.h:1049 at rcu_check_gp_start_stall+0x2e4/0x470 kernel/rcu/tree_stall.h:1049, CPU#0: syz.0.62/6093
Modules linked in:
CPU: 0 UID: 0 PID: 6093 Comm: syz.0.62 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:rcu_check_gp_start_stall+0x2e4/0x470 kernel/rcu/tree_stall.h:1049
Code: ff ff 48 c7 c7 a0 65 8e 99 be 04 00 00 00 e8 93 e2 7f 00 4c 89 f7 b8 01 00 00 00 87 05 65 2b e6 17 85 c0 0f 85 17 ff ff ff 90 <0f> 0b 90 48 81 ff 40 6e f4 8d 74 47 48 c7 c0 a0 5a 82 8f 48 c1 e8
RSP: 0000:ffffc90003147ab8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000a06 RCX: ffffffff81a83a2d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8df46e40
RBP: ffffc90003147d70 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff331ccb4 R12: 0000000000002904
R13: 1ffff110170c771a R14: ffffffff8df46e40 R15: dffffc0000000000
FS:  00007fb54aec96c0(0000) GS:ffff888125e31000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb549f72a60 CR3: 0000000028c0e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rcu_core+0x6a9/0x1870 kernel/rcu/tree.c:2852
 handle_softirqs+0x27d/0x850 kernel/softirq.c:626
 __do_softirq kernel/softirq.c:660 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:727
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:743
 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: 0033:0x7fb549f8f749
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:00007fb54aec90e8 EFLAGS: 00000246
RAX: ffffffffffffffda RBX: 00007fb54a1e5fa8 RCX: 00007fb549f8f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb54a1e5fa8
RBP: 00007fb54a1e5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb54a1e6038 R14: 00007ffdbc5ca6b0 R15: 00007ffdbc5ca798
 </TASK>