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BUG: KMSAN: uninit-value in __hlist_del include/linux/list.h:812 [inline]
BUG: KMSAN: uninit-value in detach_timer kernel/time/timer.c:814 [inline]
BUG: KMSAN: uninit-value in expire_timers kernel/time/timer.c:1438 [inline]
BUG: KMSAN: uninit-value in __run_timers+0xbd9/0x11c0 kernel/time/timer.c:1773
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1df/0x240 lib/dump_stack.c:118
kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121
__msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
__hlist_del include/linux/list.h:812 [inline]
detach_timer kernel/time/timer.c:814 [inline]
expire_timers kernel/time/timer.c:1438 [inline]
__run_timers+0xbd9/0x11c0 kernel/time/timer.c:1773
run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1786
__do_softirq+0x311/0x83d kernel/softirq.c:293
asm_call_on_stack+0x12/0x20 arch/x86/entry/entry_64.S:711
__run_on_irqstack arch/x86/include/asm/irq_stack.h:23 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:50 [inline]
do_softirq_own_stack+0x7c/0xa0 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:390 [inline]
__irq_exit_rcu+0x226/0x270 kernel/softirq.c:420
irq_exit_rcu+0xe/0x10 kernel/softirq.c:432
sysvec_apic_timer_interrupt+0x107/0x130 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:593
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:525 [inline]
RIP: 0010:acpi_idle_enter+0x6de/0xb90 drivers/acpi/processor_idle.c:651
Code: 58 a5 e8 85 87 e3 fc 83 38 00 4c 8b 65 b0 0f 85 3d 01 00 00 85 db 0f 8e 44 01 00 00 e8 8b 8a 76 fc 0f 00 2d 8e 3d ea 09 fb f4 eb 57 e8 7a 8a 76 fc 4c 8b 65 b0 eb 4c 84 d2 8b bd 7c ff ff ff
RSP: 0018:ffffffffa4a03b78 EFLAGS: 00000293
RAX: ffffffff99ed92d9 RBX: 0000000000000000 RCX: ffffffffa4a2cf40
RDX: 0000000000000000 RSI: 00000000000006a0 RDI: ffffffffa558d788
RBP: ffffffffa4a03c40 R08: ffffe199c000000f R09: ffff98762fffb000
R10: 0000000000000ed2 R11: ffffffff99ed8ac0 R12: 0000000000000001
R13: 0000000000000001 R14: ffff987625404064 R15: 0000000000000000
cpuidle_enter_state+0x69b/0xf50 drivers/cpuidle/cpuidle.c:235
cpuidle_enter+0xe3/0x170 drivers/cpuidle/cpuidle.c:346
call_cpuidle kernel/sched/idle.c:126 [inline]
cpuidle_idle_call kernel/sched/idle.c:214 [inline]
do_idle+0x668/0x810 kernel/sched/idle.c:276
cpu_startup_entry+0x45/0x50 kernel/sched/idle.c:372
rest_init+0x1be/0x1f0 init/main.c:706
arch_call_rest_init+0x13/0x15
start_kernel+0x993/0xb5f init/main.c:1046
x86_64_start_reservations+0x18/0x28 arch/x86/kernel/head64.c:490
x86_64_start_kernel+0x83/0x86 arch/x86/kernel/head64.c:471
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
kmsan_internal_poison_shadow+0x66/0xd0 mm/kmsan/kmsan.c:127
kmsan_slab_alloc+0x8a/0xe0 mm/kmsan/kmsan_hooks.c:80
slab_alloc_node mm/slub.c:2839 [inline]
slab_alloc mm/slub.c:2848 [inline]
__kmalloc_track_caller+0x8ce/0xef0 mm/slub.c:4447
kmemdup+0x95/0x140 mm/util.c:127
__devinet_sysctl_register+0xe4/0x770 net/ipv4/devinet.c:2560
devinet_sysctl_register+0x2ef/0x3a0 net/ipv4/devinet.c:2612
inetdev_init+0x580/0xad0 net/ipv4/devinet.c:276
inetdev_event+0x3dd/0x1e80 net/ipv4/devinet.c:1531
notifier_call_chain kernel/notifier.c:83 [inline]
__raw_notifier_call_chain kernel/notifier.c:361 [inline]
raw_notifier_call_chain+0x130/0x250 kernel/notifier.c:368
call_netdevice_notifiers_info net/core/dev.c:2027 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
call_netdevice_notifiers net/core/dev.c:2053 [inline]
register_netdevice+0x2c5d/0x3290 net/core/dev.c:9545
veth_newlink+0xad9/0x1430 drivers/net/veth.c:1366
__rtnl_newlink net/core/rtnetlink.c:3339 [inline]
rtnl_newlink+0x2973/0x3900 net/core/rtnetlink.c:3397
rtnetlink_rcv_msg+0x1184/0x15c0 net/core/rtnetlink.c:5460
netlink_rcv_skb+0x451/0x650 net/netlink/af_netlink.c:2469
rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:5478
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0xf9e/0x1100 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x1246/0x14d0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg net/socket.c:672 [inline]
__sys_sendto+0xc56/0xc90 net/socket.c:1995
__do_sys_sendto net/socket.c:2007 [inline]
__se_sys_sendto+0x107/0x130 net/socket.c:2003
__x64_sys_sendto+0x6e/0x90 net/socket.c:2003
do_syscall_64+0xb0/0x150 arch/x86/entry/common.c:386
entry_SYSCALL_64_after_hwframe+0x44/0xa9
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