BUG: TASK stack guard page was hit at ffffc9000385ff38 (stack is ffffc90003860000..ffffc90003868000) Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 11217 Comm: syz.0.1163 Not tainted 6.14.0-rc4-syzkaller-00210-gccc2f5a436fb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:validate_chain+0x1f/0x5920 kernel/locking/lockdep.c:3862 Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 02 00 00 49 89 ce <89> 54 24 58 48 89 bc 24 80 00 00 00 65 48 8b 04 25 28 00 00 00 48 RSP: 0018:ffffc9000385ff40 EFLAGS: 00010082 RAX: 1ffffffff27d86d0 RBX: ffffffff93ec3680 RCX: 52c2f5d96211ef35 RDX: 0000000000000000 RSI: ffff88802dfc8f78 RDI: ffff88802dfc8000 RBP: ffffc90003860240 R08: ffffffff94549847 R09: 1ffffffff28a9308 R10: dffffc0000000000 R11: fffffbfff28a9309 R12: ffff88802dfc8000 R13: ffff88802dfc8000 R14: 52c2f5d96211ef35 R15: 0000000000000000 FS: 00007f4e6812b6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000385ff38 CR3: 000000003314c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <#DF> __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 __raw_spin_trylock include/linux/spinlock_api_smp.h:90 [inline] _raw_spin_trylock+0x46/0x80 kernel/locking/spinlock.c:138 spin_trylock include/linux/spinlock.h:361 [inline] rmqueue_pcplist mm/page_alloc.c:3033 [inline] rmqueue mm/page_alloc.c:3077 [inline] get_page_from_freelist+0x7d3/0x37a0 mm/page_alloc.c:3474 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline] alloc_pages_noprof+0x121/0x190 mm/mempolicy.c:2361 stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627 save_stack+0x109/0x1f0 mm/page_owner.c:157 __set_page_owner+0x89/0x530 mm/page_owner.c:320 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551 prep_new_page mm/page_alloc.c:1559 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline] alloc_pages_noprof+0x121/0x190 mm/mempolicy.c:2361 stack_depot_save_flags+0x72d/0x940 lib/stackdepot.c:627 kasan_save_stack mm/kasan/common.c:48 [inline] kasan_save_track+0x51/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2353 [inline] slab_free mm/slub.c:4609 [inline] kfree+0x196/0x430 mm/slub.c:4757 skb_kfree_head net/core/skbuff.c:996 [inline] skb_free_head net/core/skbuff.c:1008 [inline] skb_release_data+0x6a0/0x8a0 net/core/skbuff.c:1035 skb_release_all net/core/skbuff.c:1100 [inline] kfree_skb_add_bulk net/core/skbuff.c:1173 [inline] kfree_skb_list_reason+0x2ee/0x750 net/core/skbuff.c:1195 kfree_skb_list include/linux/skbuff.h:1291 [inline] ip6_fragment+0x1c86/0x22c0 net/ipv6/ip6_output.c:987 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x1adc/0x22c0 net/ipv6/ip6_output.c:967 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:511 [inline] ipvlan_process_outbound drivers/net/ipvlan/ipvlan_core.c:552 [inline] ipvlan_xmit_mode_l3 drivers/net/ipvlan/ipvlan_core.c:616 [inline] ipvlan_queue_xmit+0xb5e/0x13f0 drivers/net/ipvlan/ipvlan_core.c:682 ipvlan_start_xmit+0x4a/0x150 drivers/net/ipvlan/ipvlan_main.c:223 __netdev_start_xmit include/linux/netdevice.h:5151 [inline] netdev_start_xmit include/linux/netdevice.h:5160 [inline] xmit_one net/core/dev.c:3800 [inline] dev_hard_start_xmit+0x27a/0x7d0 net/core/dev.c:3816 __dev_queue_xmit+0x1b73/0x3f50 net/core/dev.c:4649 dev_queue_xmit include/linux/netdevice.h:3313 [inline] neigh_hh_output include/net/neighbour.h:523 [inline] neigh_output include/net/neighbour.h:537 [inline] ip6_finish_output2+0x127d/0x17c0 net/ipv6/ip6_output.c:141 ip6_fragment+0x164e/0x22c0 net/ipv6/ip6_output.c:1028 __ip6_finish_output net/ipv6/ip6_output.c:213 [inline] ip6_finish_output+0x2b8/0x840 net/ipv6/ip6_output.c:226 NF_HOOK include/linux/netfilter.h:314 [inline] ip6_xmit+0x1108/0x1a20 net/ipv6/ip6_output.c:366 sctp_v6_xmit+0xa60/0x14a0 net/sctp/ipv6.c:248 sctp_packet_transmit+0x26d6/0x2cc0 net/sctp/output.c:653 sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783 sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline] sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212 sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline] sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169 sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73 sctp_sendmsg_to_asoc+0xfa5/0x1800 net/sctp/socket.c:1841 sctp_sendmsg+0x242e/0x35d0 net/sctp/socket.c:2031 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x1a6/0x270 net/socket.c:733 ____sys_sendmsg+0x53a/0x860 net/socket.c:2573 ___sys_sendmsg net/socket.c:2627 [inline] __sys_sendmmsg+0x36a/0x720 net/socket.c:2716 __do_sys_sendmmsg net/socket.c:2743 [inline] __se_sys_sendmmsg net/socket.c:2740 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2740 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4e6738d169 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:00007f4e6812b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f4e675a6080 RCX: 00007f4e6738d169 RDX: 0000000000000001 RSI: 00004000000025c0 RDI: 0000000000000005 RBP: 00007f4e6740e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4e675a6080 R15: 00007ffd6ccf98c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:validate_chain+0x1f/0x5920 kernel/locking/lockdep.c:3862 Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec c0 02 00 00 49 89 ce <89> 54 24 58 48 89 bc 24 80 00 00 00 65 48 8b 04 25 28 00 00 00 48 RSP: 0018:ffffc9000385ff40 EFLAGS: 00010082 RAX: 1ffffffff27d86d0 RBX: ffffffff93ec3680 RCX: 52c2f5d96211ef35 RDX: 0000000000000000 RSI: ffff88802dfc8f78 RDI: ffff88802dfc8000 RBP: ffffc90003860240 R08: ffffffff94549847 R09: 1ffffffff28a9308 R10: dffffc0000000000 R11: fffffbfff28a9309 R12: ffff88802dfc8000 R13: ffff88802dfc8000 R14: 52c2f5d96211ef35 R15: 0000000000000000 FS: 00007f4e6812b6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000385ff38 CR3: 000000003314c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: f3 0f 1e fa endbr64 f: 55 push %rbp 10: 48 89 e5 mov %rsp,%rbp 13: 41 57 push %r15 15: 41 56 push %r14 17: 41 55 push %r13 19: 41 54 push %r12 1b: 53 push %rbx 1c: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp 20: 48 81 ec c0 02 00 00 sub $0x2c0,%rsp 27: 49 89 ce mov %rcx,%r14 * 2a: 89 54 24 58 mov %edx,0x58(%rsp) <-- trapping instruction 2e: 48 89 bc 24 80 00 00 mov %rdi,0x80(%rsp) 35: 00 36: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 3d: 00 00 3f: 48 rex.W