==================================================================
BUG: KASAN: slab-use-after-free in tcx_entry include/net/tcx.h:36 [inline]
BUG: KASAN: slab-use-after-free in sch_handle_ingress net/core/dev.c:3990 [inline]
BUG: KASAN: slab-use-after-free in __netif_receive_skb_core.constprop.0+0x3e0e/0x3f20 net/core/dev.c:5373
Read of size 8 at addr ffff888079099208 by task kworker/1:2/918

CPU: 1 PID: 918 Comm: kworker/1:2 Not tainted 6.5.0-rc2-syzkaller-00542-g2da6a8041699 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xc4/0x620 mm/kasan/report.c:475
 kasan_report+0xda/0x110 mm/kasan/report.c:588
 tcx_entry include/net/tcx.h:36 [inline]
 sch_handle_ingress net/core/dev.c:3990 [inline]
 __netif_receive_skb_core.constprop.0+0x3e0e/0x3f20 net/core/dev.c:5373
 __netif_receive_skb_one_core+0xaf/0x180 net/core/dev.c:5511
 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5627
 process_backlog+0x101/0x6c0 net/core/dev.c:5955
 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6517
 napi_poll net/core/dev.c:6584 [inline]
 net_rx_action+0x956/0xe90 net/core/dev.c:6717
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 do_softirq kernel/softirq.c:454 [inline]
 do_softirq+0xaa/0xe0 kernel/softirq.c:441
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381
 wg_socket_send_skb_to_peer+0x14c/0x210 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1ab/0x780 drivers/net/wireguard/send.c:276
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Allocated by task 5032:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 tcx_entry_create include/net/tcx.h:85 [inline]
 tcx_entry_fetch_or_create include/net/tcx.h:106 [inline]
 tcx_entry_fetch_or_create include/net/tcx.h:100 [inline]
 ingress_init+0x2e9/0x7d0 net/sched/sch_ingress.c:91
 qdisc_create+0x4f7/0x10a0 net/sched/sch_api.c:1326
 tc_modify_qdisc+0xab3/0x1bf0 net/sched/sch_api.c:1703
 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6423
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 918:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x15e/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:162 [inline]
 slab_free_hook mm/slub.c:1792 [inline]
 slab_free_freelist_hook+0x10b/0x1e0 mm/slub.c:1818
 slab_free mm/slub.c:3801 [inline]
 kmem_cache_free_bulk.part.0+0x256/0x6c0 mm/slub.c:3919
 kfree_bulk include/linux/slab.h:499 [inline]
 kvfree_rcu_bulk+0x446/0x570 kernel/rcu/tree.c:2958
 kvfree_rcu_drain_ready kernel/rcu/tree.c:3132 [inline]
 kfree_rcu_monitor+0x47b/0x12d0 kernel/rcu/tree.c:3150
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296

Last potentially related work creation:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
 kvfree_call_rcu+0x70/0xbe0 kernel/rcu/tree.c:3368
 tcx_entry_free include/net/tcx.h:96 [inline]
 ingress_destroy+0x39f/0x520 net/sched/sch_ingress.c:127
 __qdisc_destroy+0xc4/0x450 net/sched/sch_generic.c:1063
 qdisc_destroy+0x4f/0x60 net/sched/sch_generic.c:1078
 qdisc_graft+0x6f9/0x1680 net/sched/sch_api.c:1132
 tc_modify_qdisc+0xcd2/0x1bf0 net/sched/sch_api.c:1731
 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6423
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888079099000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 520 bytes inside of
 freed 2048-byte region [ffff888079099000, ffff888079099800)

The buggy address belongs to the physical page:
page:ffffea0001e42600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x79098
head:ffffea0001e42600 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000010200 ffff888012842000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 918, tgid 918 (kworker/1:2), ts 85482098578, free_ts 52634004031
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570
 prep_new_page mm/page_alloc.c:1577 [inline]
 get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2279
 alloc_slab_page mm/slub.c:1862 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2009
 new_slab mm/slub.c:2062 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3215
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3314
 __slab_alloc_node mm/slub.c:3367 [inline]
 slab_alloc_node mm/slub.c:3460 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3509
 __do_kmalloc_node mm/slab_common.c:984 [inline]
 __kmalloc_node_track_caller+0x4d/0x100 mm/slab_common.c:1005
 kmalloc_reserve+0xef/0x270 net/core/skbuff.c:575
 __alloc_skb+0x12b/0x330 net/core/skbuff.c:644
 alloc_skb include/linux/skbuff.h:1289 [inline]
 alloc_skb_with_frags+0x9d/0x700 net/core/skbuff.c:6233
 sock_alloc_send_pskb+0x7c8/0x950 net/core/sock.c:2773
 sock_alloc_send_skb include/net/sock.h:1871 [inline]
 mld_newpack.isra.0+0x1ee/0x790 net/ipv6/mcast.c:1746
 add_grhead+0x295/0x340 net/ipv6/mcast.c:1849
 add_grec+0x10bb/0x1680 net/ipv6/mcast.c:1987
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2348
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2443
 __unfreeze_partials+0x21d/0x240 mm/slub.c:2647
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x18b/0x1d0 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3470 [inline]
 kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3515
 __alloc_skb+0x287/0x330 net/core/skbuff.c:634
 alloc_skb include/linux/skbuff.h:1289 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1211 [inline]
 netlink_sendmsg+0x9c6/0xe30 net/netlink/af_netlink.c:1886
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Memory state around the buggy address:
 ffff888079099100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079099180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888079099200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff888079099280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888079099300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================