bridge_slave_1: left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
bridge_slave_0: left allmulticast mode
bridge_slave_0: left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
==================================================================
BUG: KASAN: slab-use-after-free in tcx_entry include/net/tcx.h:36 [inline]
BUG: KASAN: slab-use-after-free in tcx_miniq_set_active include/net/tcx.h:136 [inline]
BUG: KASAN: slab-use-after-free in ingress_destroy+0x4d4/0x520 net/sched/sch_ingress.c:124
Read of size 8 at addr ffff8880697f7208 by task kworker/u4:7/5154

CPU: 1 PID: 5154 Comm: kworker/u4:7 Not tainted 6.5.0-rc2-next-20230720-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __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]
 tcx_miniq_set_active include/net/tcx.h:136 [inline]
 ingress_destroy+0x4d4/0x520 net/sched/sch_ingress.c:124
 __qdisc_destroy+0xc4/0x450 net/sched/sch_generic.c:1063
 qdisc_put+0xd1/0xf0 net/sched/sch_generic.c:1090
 shutdown_scheduler_queue+0xa5/0x160 net/sched/sch_generic.c:1143
 dev_shutdown+0x17e/0x430 net/sched/sch_generic.c:1477
 unregister_netdevice_many_notify+0x5bd/0x1a20 net/core/dev.c:10898
 unregister_netdevice_many net/core/dev.c:10964 [inline]
 default_device_exit_batch+0x584/0x740 net/core/dev.c:11417
 ops_exit_list+0x125/0x170 net/core/net_namespace.c:175
 cleanup_net+0x505/0xb20 net/core/net_namespace.c:614
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600
 worker_thread+0x687/0x1110 kernel/workqueue.c:2751
 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 4472:
 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:599 [inline]
 syslog_print+0xf9/0x5d0 kernel/printk/printk.c:1553
 do_syslog+0x2d4/0x580 kernel/printk/printk.c:1732
 __do_sys_syslog kernel/printk/printk.c:1824 [inline]
 __se_sys_syslog kernel/printk/printk.c:1822 [inline]
 __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1822
 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 4472:
 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:164 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
 slab_free mm/slub.c:3809 [inline]
 __kmem_cache_free+0xb8/0x2f0 mm/slub.c:3822
 syslog_print+0x2bb/0x5d0 kernel/printk/printk.c:1645
 do_syslog+0x2d4/0x580 kernel/printk/printk.c:1732
 __do_sys_syslog kernel/printk/printk.c:1824 [inline]
 __se_sys_syslog kernel/printk/printk.c:1822 [inline]
 __x64_sys_syslog+0x74/0xb0 kernel/printk/printk.c:1822
 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

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:3372
 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

Second to 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
 __call_rcu_common.constprop.0+0x9a/0x790 kernel/rcu/tree.c:2653
 netlink_release+0xea3/0x1f80 net/netlink/af_netlink.c:828
 __sock_release net/socket.c:654 [inline]
 sock_release+0x8b/0x1d0 net/socket.c:682
 netlink_kernel_release+0x4e/0x60 net/netlink/af_netlink.c:2096
 uevent_net_exit+0xc1/0x290 lib/kobject_uevent.c:799
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:170
 setup_net+0x64d/0xa40 net/core/net_namespace.c:362
 copy_net_ns+0x2fa/0x670 net/core/net_namespace.c:491
 create_new_namespaces+0x3ea/0xb10 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:228
 ksys_unshare+0x3da/0x930 kernel/fork.c:3446
 __do_sys_unshare kernel/fork.c:3517 [inline]
 __se_sys_unshare kernel/fork.c:3515 [inline]
 __x64_sys_unshare+0x31/0x40 kernel/fork.c:3515
 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 ffff8880697f7000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 520 bytes inside of
 freed 2048-byte region [ffff8880697f7000, ffff8880697f7800)

The buggy address belongs to the physical page:
page:ffffea0001a5fc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x697f0
head:ffffea0001a5fc00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000010200 ffff888012842000 0000000000000000 dead000000000001
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 5069, tgid 5069 (syz-executor.3), ts 164773585905, free_ts 163898979142
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1569
 prep_new_page mm/page_alloc.c:1576 [inline]
 get_page_from_freelist+0x10d7/0x31b0 mm/page_alloc.c:3256
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4512
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2279
 alloc_slab_page mm/slub.c:1870 [inline]
 allocate_slab+0x24e/0x380 mm/slub.c:2017
 new_slab mm/slub.c:2070 [inline]
 ___slab_alloc+0x8bc/0x1570 mm/slub.c:3223
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
 __slab_alloc_node mm/slub.c:3375 [inline]
 slab_alloc_node mm/slub.c:3468 [inline]
 __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3517
 __do_kmalloc_node mm/slab_common.c:1023 [inline]
 __kmalloc_node+0x52/0x110 mm/slab_common.c:1031
 kmalloc_node include/linux/slab.h:619 [inline]
 kzalloc_node include/linux/slab.h:731 [inline]
 qdisc_alloc+0xb3/0xa90 net/sched/sch_generic.c:938
 qdisc_create_dflt+0x73/0x3e0 net/sched/sch_generic.c:996
 attach_one_default_qdisc net/sched/sch_generic.c:1159 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2515 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1177 [inline]
 dev_activate+0x66c/0x1310 net/sched/sch_generic.c:1236
 __dev_open+0x388/0x4d0 net/core/dev.c:1451
 __dev_change_flags+0x56f/0x730 net/core/dev.c:8587
 dev_change_flags+0x9a/0x170 net/core/dev.c:8659
 do_setlink+0x1a2a/0x3fa0 net/core/rtnetlink.c:2866
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1160 [inline]
 free_unref_page_prepare+0x508/0xb90 mm/page_alloc.c:2383
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2478
 __unfreeze_partials+0x21d/0x240 mm/slub.c:2655
 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:188 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3523
 __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_sendto+0x255/0x340 net/socket.c:2134
 __do_sys_sendto net/socket.c:2146 [inline]
 __se_sys_sendto net/socket.c:2142 [inline]
 __x64_sys_sendto+0xe0/0x1b0 net/socket.c:2142
 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:
 ffff8880697f7100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880697f7180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880697f7200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff8880697f7280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880697f7300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================