=====================================================
BUG: KMSAN: uninit-value in rcu_core+0xc08/0x2000
 rcu_core+0xc08/0x2000
 rcu_core_si+0xe/0x10
 __do_softirq+0x1dd/0x7f6
 invoke_softirq+0x8f/0x100
 irq_exit_rcu+0x50/0x100
 sysvec_apic_timer_interrupt+0x95/0xb0
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 acpi_idle_enter+0x4f7/0x5c0
 cpuidle_enter_state+0x64b/0x14b0
 cpuidle_enter+0x7b/0xf0
 do_idle+0x5e1/0x7d0
 cpu_startup_entry+0x1d/0x20
 start_secondary+0x103/0x130
 secondary_startup_64_no_verify+0xcf/0xdb

Local variable rcl.i created at:
 rcu_core+0x671/0x2000
 rcu_core_si+0xe/0x10

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.0.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
=====================================================
=====================================================
BUG: KMSAN: uninit-value in rcu_core+0xc14/0x2000
 rcu_core+0xc14/0x2000
 rcu_core_si+0xe/0x10
 __do_softirq+0x1dd/0x7f6
 invoke_softirq+0x8f/0x100
 irq_exit_rcu+0x50/0x100
 sysvec_apic_timer_interrupt+0x95/0xb0
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 acpi_idle_enter+0x4f7/0x5c0
 cpuidle_enter_state+0x64b/0x14b0
 cpuidle_enter+0x7b/0xf0
 do_idle+0x5e1/0x7d0
 cpu_startup_entry+0x1d/0x20
 start_secondary+0x103/0x130
 secondary_startup_64_no_verify+0xcf/0xdb

Local variable rcl.i created at:
 rcu_core+0x671/0x2000
 rcu_core_si+0xe/0x10

CPU: 1 PID: 0 Comm: swapper/1 Tainted: G    B              6.0.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
=====================================================
=====================================================
BUG: KMSAN: uninit-value in rcu_core+0xc20/0x2000
 rcu_core+0xc20/0x2000
 rcu_core_si+0xe/0x10
 __do_softirq+0x1dd/0x7f6
 invoke_softirq+0x8f/0x100
 irq_exit_rcu+0x50/0x100
 sysvec_apic_timer_interrupt+0x95/0xb0
 asm_sysvec_apic_timer_interrupt+0x1b/0x20
 acpi_idle_enter+0x4f7/0x5c0
 cpuidle_enter_state+0x64b/0x14b0
 cpuidle_enter+0x7b/0xf0
 do_idle+0x5e1/0x7d0
 cpu_startup_entry+0x1d/0x20
 start_secondary+0x103/0x130
 secondary_startup_64_no_verify+0xcf/0xdb

Local variable rcl.i created at:
 rcu_core+0x671/0x2000
 rcu_core_si+0xe/0x10

CPU: 1 PID: 0 Comm: swapper/1 Tainted: G    B              6.0.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
=====================================================