syzbot

Dead loop on virtual device ipvlan1, fix it urgently!
=====================================================
BUG: KMSAN: uninit-value in schedule_debug kernel/sched/core.c:5947 [inline]
BUG: KMSAN: uninit-value in __schedule+0xaa4/0x6c00 kernel/sched/core.c:6662
 schedule_debug kernel/sched/core.c:5947 [inline]
 __schedule+0xaa4/0x6c00 kernel/sched/core.c:6662
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x13d/0x380 kernel/sched/core.c:6856
 exit_to_user_mode_loop kernel/entry/common.c:102 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x4a/0x160 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
 ip6t_mangle_out net/ipv6/netfilter/ip6table_mangle.c:49 [inline]
 ip6table_mangle_hook+0x23b/0x9c0 net/ipv6/netfilter/ip6table_mangle.c:72

CPU: 1 UID: 0 PID: 10345 Comm: syz.8.970 Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
=====================================================
Kernel panic - not syncing: kmsan.panic set ...
CPU: 1 UID: 0 PID: 10345 Comm: syz.8.970 Tainted: G    B              6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x216/0x2d0 lib/dump_stack.c:120
 dump_stack+0x1e/0x24 lib/dump_stack.c:129
 panic+0x4e2/0xcf0 kernel/panic.c:354
 kmsan_report+0x2c7/0x2d0 mm/kmsan/report.c:218
 __msan_warning+0x95/0x120 mm/kmsan/instrumentation.c:318
 schedule_debug kernel/sched/core.c:5947 [inline]
 __schedule+0xaa4/0x6c00 kernel/sched/core.c:6662
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0x13d/0x380 kernel/sched/core.c:6856
 exit_to_user_mode_loop kernel/entry/common.c:102 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x4a/0x160 kernel/entry/common.c:218
 do_syscall_64+0xda/0x1e0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdda778cde9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdda8514038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffff8d RBX: 00007fdda79a5fa0 RCX: 00007fdda778cde9
RDX: 000000000000001c RSI: 0000400000000100 RDI: 0000000000000003
RBP: 00007fdda780e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdda79a5fa0 R15: 00007ffc775c5b78
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..