skbuff: skb_under_panic: text:ffffffff8a83963b len:-1812854176 put:-1812854252 head:ffff88807dd0e000 data:ffff887fe9ded6ac tail:0x10c end:0x6c0 dev:bond1 ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:209! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 6174 Comm: kworker/u8:17 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: bond1 bond_resend_igmp_join_requests_delayed RIP: 0010:skb_panic net/core/skbuff.c:209 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:219 Code: 2e 8d 48 c7 c6 63 5b 4c 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 6a da 62 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000b9e7390 EFLAGS: 00010286 RAX: 0000000000000099 RBX: dffffc0000000000 RCX: 59d8478883545400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff888033464290 R08: ffffffff81a1358c R09: 1ffff9200173ce08 R10: dffffc0000000000 R11: fffff5200173ce09 R12: 00000000000006c0 R13: ffff88807dd0e000 R14: ffff887fe9ded6ac R15: 000000000000010c FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555926fc808 CR3: 0000000024020000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_push+0xe5/0x100 net/core/skbuff.c:2546 ipgre_header+0x6b/0x290 net/ipv4/ip_gre.c:891 dev_hard_header include/linux/netdevice.h:3365 [inline] neigh_connected_output+0x27f/0x450 net/core/neighbour.c:1538 neigh_output include/net/neighbour.h:539 [inline] ip6_finish_output2+0x12bc/0x17c0 net/ipv6/ip6_output.c:141 ip6_finish_output+0x41e/0x840 net/ipv6/ip6_output.c:226 NF_HOOK+0x9e/0x430 include/linux/netfilter.h:314 mld_sendpack+0x843/0xdb0 net/ipv6/mcast.c:1868 ipv6_mc_rejoin_groups net/ipv6/mcast.c:2878 [inline] ipv6_mc_netdev_event+0x1cf/0x5d0 net/ipv6/mcast.c:2893 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2244 [inline] call_netdevice_notifiers+0xb6/0xf0 net/core/dev.c:2258 bond_resend_igmp_join_requests_delayed+0x63/0x180 drivers/net/bonding/bond_main.c:970 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319 worker_thread+0x870/0xd30 kernel/workqueue.c:3400 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_panic net/core/skbuff.c:209 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:219 Code: 2e 8d 48 c7 c6 63 5b 4c 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 6a da 62 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc9000b9e7390 EFLAGS: 00010286 RAX: 0000000000000099 RBX: dffffc0000000000 RCX: 59d8478883545400 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff888033464290 R08: ffffffff81a1358c R09: 1ffff9200173ce08 R10: dffffc0000000000 R11: fffff5200173ce09 R12: 00000000000006c0 R13: ffff88807dd0e000 R14: ffff887fe9ded6ac R15: 000000000000010c FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b383a6b950 CR3: 000000007e674000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400