syzbot

Dead loop on virtual device ipvlan1, fix it urgently!
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BUG: KMSAN: uninit-value in schedule_debug kernel/sched/core.c:5887 [inline]
BUG: KMSAN: uninit-value in __schedule+0x71b/0x6990 kernel/sched/core.c:6564
 schedule_debug kernel/sched/core.c:5887 [inline]
 __schedule+0x71b/0x6990 kernel/sched/core.c:6564
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x13d/0x380 kernel/sched/core.c:6782
 exit_to_user_mode_loop kernel/entry/common.c:102 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xaf/0x170 kernel/entry/common.c:218
 do_syscall_64+0xda/0x1e0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable acpar created at:
 ip6t_do_table+0x70/0x23b0 net/ipv6/netfilter/ip6_tables.c:261
 ip6table_mangle_hook+0x779/0x9c0 net/ipv6/netfilter/ip6table_mangle.c:73

CPU: 0 UID: 0 PID: 6686 Comm: syz.3.374 Tainted: G        W          6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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