kernel msg: ebtables bug: please report to author: Wrong len argument
==================================================================
BUG: KMSAN: uninit-value in lock_timer_base kernel/time/timer.c:939 [inline]
BUG: KMSAN: uninit-value in __mod_timer+0x42d/0x2bf0 kernel/time/timer.c:1010
CPU: 0 PID: 4452 Comm: udevd Not tainted 4.17.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kernel msg: ebtables bug: please report to author: Wrong len argument
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1125
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620
 lock_timer_base kernel/time/timer.c:939 [inline]
 __mod_timer+0x42d/0x2bf0 kernel/time/timer.c:1010
 mod_timer+0x70/0x80 kernel/time/timer.c:1102
 can_stat_update+0x15ec/0x1860 net/can/proc.c:179
 call_timer_fn+0x280/0x5d0 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0xd96/0x11b0 kernel/time/timer.c:1666
 run_timer_softirq+0x43/0x70 kernel/time/timer.c:1692
 __do_softirq+0x592/0x979 kernel/softirq.c:285
 invoke_softirq kernel/softirq.c:365 [inline]
 irq_exit+0x202/0x240 kernel/softirq.c:405
 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525
 smp_apic_timer_interrupt+0x64/0x90 arch/x86/kernel/apic/apic.c:1055
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:866
 </IRQ>
RIP: 0010:add_rchar include/linux/sched/xacct.h:14 [inline]
RIP: 0010:vfs_read+0x5f3/0x6b0 fs/read_write.c:455
RSP: 0018:ffff880198e0fdb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000002 RBX: ffff8801d36f0000 RCX: 0000000000011d8a
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000
RBP: ffff880198e0fe50 R08: 0000000001080020 R09: ffff88019923fd08
R10: 0000000000000000 R11: ffffffff82047b30 R12: ffff8801d36f08d8
R13: 0000000000000000 R14: 0000000000000001 R15: ffff8801d36f0768
 ksys_read fs/read_write.c:578 [inline]
 __do_sys_read fs/read_write.c:588 [inline]
 __se_sys_read fs/read_write.c:586 [inline]
 __x64_sys_read+0x1bf/0x3e0 fs/read_write.c:586
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fef8fec3310
RSP: 002b:00007ffd43a31788 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fef8fec3310
RDX: 0000000000001000 RSI: 00007ffd43a31c30 RDI: 0000000000000005
RBP: 000000000229b744 R08: 000000000229b744 R09: 00007fef8ff18c20
R10: 7269762f73656369 R11: 0000000000000246 R12: 0000000002299e80
R13: 0000000002299f70 R14: 0000000002281250 R15: 0000000002286e10

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline]
 kmsan_save_stack mm/kmsan/kmsan.c:297 [inline]
 kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689
 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464
 timer_set_idx kernel/time/timer.c:480 [inline]
 enqueue_timer kernel/time/timer.c:539 [inline]
 __internal_add_timer kernel/time/timer.c:548 [inline]
 internal_add_timer kernel/time/timer.c:590 [inline]
 __mod_timer+0x22a1/0x2bf0 kernel/time/timer.c:1055
 mod_timer+0x70/0x80 kernel/time/timer.c:1102
 can_stat_update+0x15ec/0x1860 net/can/proc.c:179
 call_timer_fn+0x280/0x5d0 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0xd96/0x11b0 kernel/time/timer.c:1666
 run_timer_softirq+0x43/0x70 kernel/time/timer.c:1692
 __do_softirq+0x592/0x979 kernel/softirq.c:285

xt_SECMARK: only valid in 'mangle' or 'security' table, not 'nat'
Local variable description: ----heads@__run_timers
Variable was created at:
 __run_timers+0x84/0x11b0 kernel/time/timer.c:1651
 run_timer_softirq+0x43/0x70 kernel/time/timer.c:1692
==================================================================