list_add corruption. next->prev should be prev (ffff0000ce522608), but was 0000000000000000. (next=ffff0000cde85e00). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3036 Comm: kworker/1:4 Not tainted 6.1.0-rc4-syzkaller-31872-g1621b6eaebf7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 Workqueue: mld mld_ifc_work pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __list_add_valid+0x9c/0xb8 lib/list_debug.c:27 lr : __list_add_valid+0x9c/0xb8 lib/list_debug.c:27 sp : ffff800012bfba40 x29: ffff800012bfba40 x28: 00007bfdfe1edc60 x27: 0000000000000015 x26: ffff0000ce5225b0 x25: ffff0000c3d82d70 x24: ffff0000ce522000 x23: ffff0000cde85e00 x22: ffff0000c3f5cd80 x21: ffff0000ce522608 x20: 0000000000000000 x19: ffff0000ce5225b8 x18: 00000000000000c0 x17: 3830363232356563 x16: ffff80000db1a158 x15: ffff0000c4f44ec0 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c4f44ec0 x11: ff808000081c06c8 x10: 0000000000000000 x9 : 6e082120c18aba00 x8 : 6e082120c18aba00 x7 : ffff80000c01775c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcc8 x1 : 0000000100000001 x0 : 0000000000000075 Call trace: __list_add_valid+0x9c/0xb8 lib/list_debug.c:27 __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] ref_tracker_alloc+0x118/0x280 lib/ref_tracker.c:95 __netdev_tracker_alloc include/linux/netdevice.h:3995 [inline] netdev_hold include/linux/netdevice.h:4024 [inline] dst_init+0x98/0x17c net/core/dst.c:52 dst_alloc+0x118/0x158 net/core/dst.c:96 ip6_dst_alloc net/ipv6/route.c:344 [inline] icmp6_dst_alloc+0x54/0x22c net/ipv6/route.c:3261 mld_sendpack+0x348/0x864 net/ipv6/mcast.c:1809 mld_send_cr+0x4e8/0x5a8 net/ipv6/mcast.c:2121 mld_ifc_work+0x38/0x290 net/ipv6/mcast.c:2653 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863 Code: b001b0e0 9132ac00 aa0803e1 94a8304b (d4210000) ---[ end trace 0000000000000000 ]---