Dead loop on virtual device ipvlan1, fix it urgently!
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BUG: KMSAN: uninit-value in schedule_debug kernel/sched/core.c:5819 [inline]
BUG: KMSAN: uninit-value in __schedule+0x8f3/0x8460 kernel/sched/core.c:6744
 schedule_debug kernel/sched/core.c:5819 [inline]
 __schedule+0x8f3/0x8460 kernel/sched/core.c:6744
 preempt_schedule_common kernel/sched/core.c:7051 [inline]
 __cond_resched+0x57/0xd0 kernel/sched/core.c:7378
 might_resched include/linux/kernel.h:61 [inline]
 might_alloc include/linux/sched/mm.h:323 [inline]
 slab_pre_alloc_hook mm/slub.c:4904 [inline]
 slab_alloc_node mm/slub.c:5239 [inline]
 __kmalloc_cache_noprof+0x107/0x1710 mm/slub.c:5775
 kmalloc_noprof include/linux/slab.h:957 [inline]
 sctp_datamsg_new net/sctp/chunk.c:50 [inline]
 sctp_datamsg_from_user+0x99/0x22d0 net/sctp/chunk.c:158
 sctp_sendmsg_to_asoc+0x19ca/0x2240 net/sctp/socket.c:1858
 sctp_sendmsg+0x38b2/0x5270 net/sctp/socket.c:2030
 inet_sendmsg+0x265/0x290 net/ipv4/af_inet.c:859
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xd6a/0x1080 net/socket.c:2592
 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2646
 __sys_sendmsg+0x1aa/0x300 net/socket.c:2678
 __compat_sys_sendmsg net/compat.c:346 [inline]
 __do_compat_sys_sendmsg net/compat.c:353 [inline]
 __se_compat_sys_sendmsg net/compat.c:350 [inline]
 __ia32_compat_sys_sendmsg+0xa4/0x100 net/compat.c:350
 ia32_sys_call+0x35f2/0x4340 arch/x86/include/generated/asm/syscalls_32.h:371
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x14a/0x310 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable __bpf_net_ctx.i created at:
 sch_handle_egress net/core/dev.c:4501 [inline]
 __dev_queue_xmit+0x40a1/0x5890 net/core/dev.c:4774
 dev_queue_xmit include/linux/netdevice.h:3381 [inline]
 neigh_hh_output include/net/neighbour.h:540 [inline]
 neigh_output include/net/neighbour.h:554 [inline]
 ip6_finish_output2+0x2475/0x2d10 net/ipv6/ip6_output.c:136

CPU: 0 UID: 0 PID: 12669 Comm: syz.3.1838 Tainted: G        W    L      syzkaller #0 PREEMPT(voluntary) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
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