=====================================================
BUG: KMSAN: uninit-value in skb_orphan_frags include/linux/skbuff.h:3395 [inline]
BUG: KMSAN: uninit-value in skb_clone+0x51d/0x580 net/core/skbuff.c:2038
 skb_orphan_frags include/linux/skbuff.h:3395 [inline]
 skb_clone+0x51d/0x580 net/core/skbuff.c:2038
 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:386 [inline]
 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:419 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x9ea/0xde0 net/batman-adv/bat_iv_ogm.c:1697
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3346
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3427
 kthread+0xd5c/0xf00 kernel/kthread.c:463
 ret_from_fork+0x1f5/0x4c0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was created at:
 __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:5201
 __alloc_pages_noprof+0x41/0xd0 mm/page_alloc.c:5212
 __page_frag_cache_refill+0x57/0x2a0 mm/page_frag_cache.c:59
 __page_frag_alloc_align+0xca/0x6e0 mm/page_frag_cache.c:103
 page_frag_alloc include/linux/page_frag_cache.h:56 [inline]
 __netdev_alloc_skb+0x626/0x6a0 net/core/skbuff.c:754
 __netdev_alloc_skb_ip_align include/linux/skbuff.h:3504 [inline]
 netdev_alloc_skb_ip_align include/linux/skbuff.h:3514 [inline]
 batadv_iv_ogm_aggregate_new net/batman-adv/bat_iv_ogm.c:566 [inline]
 batadv_iv_ogm_queue_add+0x1198/0x1aa0 net/batman-adv/bat_iv_ogm.c:677
 batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:854 [inline]
 batadv_iv_ogm_schedule+0xfa9/0x1570 net/batman-adv/bat_iv_ogm.c:873
 batadv_iv_send_outstanding_bat_ogm_packet+0xc16/0xde0 net/batman-adv/bat_iv_ogm.c:1709
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xb91/0x1d80 kernel/workqueue.c:3346
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3427
 kthread+0xd5c/0xf00 kernel/kthread.c:463
 ret_from_fork+0x1f5/0x4c0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

CPU: 1 UID: 0 PID: 59 Comm: kworker/u8:4 Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
=====================================================