------------[ cut here ]------------ WARNING: CPU: 0 PID: 8058 at kernel/rcu/tree_stall.h:1001 rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:993 Modules linked in: CPU: 0 PID: 8058 Comm: syz.1.437 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:rcu_check_gp_start_stall+0x2dc/0x460 kernel/rcu/tree_stall.h:1001 Code: ff ff ff 48 c7 c7 a0 14 ef 96 be 04 00 00 00 e8 7a bb 6c 00 48 89 df b8 01 00 00 00 87 05 cc e4 7e 15 85 c0 0f 85 19 ff ff ff <0f> 0b 48 81 ff 80 51 d3 8c 74 47 48 c7 c0 dc bf 4a 8e 48 c1 e8 03 RSP: 0018:ffffc90000007c58 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff8cd35180 RCX: ffffffff81702fc6 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8cd35180 RBP: ffffc90000007ed0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff2dde294 R12: 0000000000002904 R13: 1ffff110171c7a22 R14: 0000000000000a06 R15: dffffc0000000000 FS: 00007fbadae2f6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbadadaaf98 CR3: 00000000663d4000 CR4: 00000000003506f0 Call Trace: rcu_core+0x612/0x1720 kernel/rcu/tree.c:2462 handle_softirqs+0x280/0x820 kernel/softirq.c:578 do_softirq+0xed/0x180 kernel/softirq.c:479 __local_bh_enable_ip+0x178/0x1c0 kernel/softirq.c:406 handle_signal arch/x86/kernel/signal.c:283 [inline] arch_do_signal_or_restart+0x48b/0x7b0 arch/x86/kernel/signal.c:312 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fbad9fb7700 Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d ea 3b 08 00 e8 f5 8e f8 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 RSP: 002b:00007fbadae2ea78 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007fbada1e5fa0 RCX: 00007fbad9f8efc9 RDX: 00007fbadae2ea80 RSI: 00007fbadae2ebb0 RDI: 0000000000000021 RBP: 00007fbada011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbada1e6038 R14: 00007fbada1e5fa0 R15: 00007ffc07b1e358