IPVS: ftp: loaded support on port[0] = 21
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BUG: KMSAN: uninit-value in do_error_trap+0x39b/0x600 arch/x86/kernel/traps.c:297
CPU: 0 PID: 4514 Comm: 3 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 do_error_trap+0x39b/0x600 arch/x86/kernel/traps.c:297
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:316
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986
RIP: 0010:task_participate_group_stop+0x344/0x570 kernel/signal.c:351
RSP: 0018:ffff8801a00ef850 EFLAGS: 00010093
RAX: ffffffff8125f384 RBX: 0000000000000000 RCX: ffff8801b4b81d80
RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000
RBP: ffff8801a00ef8d0 R08: 0000000001080020 R09: 0000000000000002
R10: ffff88019a6a8000 R11: 000000018040003f R12: 0000000000000000
R13: ffff8801a722a068 R14: 00000000ffffffff R15: 0000000000000000
 do_signal_stop+0xbd3/0x1080 kernel/signal.c:2176
 get_signal+0xbdd/0x1f20 kernel/signal.c:2353
 do_signal+0xb8/0x1c80 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x700 arch/x86/entry/common.c:265
 do_syscall_64+0x36d/0x430 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x127
RSP: 002b:00007ffe94ddc1d0 EFLAGS: 00000200 ORIG_RAX: 000000000000003b
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Local variable description: ----oldbit.i.i.i@kfree
Variable was created at:
 kfree+0xcb/0x29e0 mm/slub.c:3931
 load_elf_binary+0x6c5/0x8f90 fs/binfmt_elf.c:1161
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