[ 16.704275][ T252] ip (252) used greatest stack depth: 23984 bytes left
[ 33.019476][ T369] GACT probability NOT on
[ 37.960080][ T433] ==================================================================
[ 37.960429][ T433] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 37.960756][ T433] Read of size 1 at addr ffff888008d8c6ac by task ip/433
[ 37.960974][ T433]
[ 37.961066][ T433] CPU: 1 UID: 0 PID: 433 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 37.961074][ T433] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.961077][ T433] Call Trace:
[ 37.961079][ T433]
[ 37.961081][ T433] dump_stack_lvl+0x82/0xc0
[ 37.961088][ T433] print_address_description.constprop.0+0x2c/0x3a0
[ 37.961097][ T433] ? kobject_put+0xbb/0xd0
[ 37.961101][ T433] print_report+0xb4/0x270
[ 37.961104][ T433] ? kobject_put+0xbb/0xd0
[ 37.961107][ T433] ? kasan_addr_to_slab+0x21/0x70
[ 37.961110][ T433] ? kobject_put+0xbb/0xd0
[ 37.961113][ T433] kasan_report+0xca/0x100
[ 37.961117][ T433] ? kobject_put+0xbb/0xd0
[ 37.961122][ T433] kobject_put+0xbb/0xd0
[ 37.961126][ T433] netdev_run_todo+0x5f0/0xc60
[ 37.961130][ T433] ? dev_ingress_queue_create+0x190/0x190
[ 37.961133][ T433] ? generic_xdp_install+0x410/0x410
[ 37.961138][ T433] ? vrf_dellink+0xff/0x150 [vrf]
[ 37.961145][ T433] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 37.961150][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.961157][ T433] rtnl_dellink+0x350/0xa30
[ 37.961165][ T433] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 37.961184][ T433] ? find_held_lock+0x2b/0x80
[ 37.961188][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.961194][ T433] ? find_held_lock+0x2b/0x80
[ 37.961198][ T433] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 37.961200][ T433] ? __lock_release+0x5d/0x170
[ 37.961205][ T433] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 37.961208][ T433] rtnetlink_rcv_msg+0x709/0xc00
[ 37.961212][ T433] ? rtnl_port_fill+0x850/0x850
[ 37.961215][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.961222][ T433] netlink_rcv_skb+0x121/0x340
[ 37.961226][ T433] ? rtnl_port_fill+0x850/0x850
[ 37.961230][ T433] ? netlink_ack+0xdd0/0xdd0
[ 37.961236][ T433] ? netlink_deliver_tap+0x13e/0x340
[ 37.961239][ T433] ? netlink_deliver_tap+0xc3/0x340
[ 37.961242][ T433] netlink_unicast+0x4aa/0x780
[ 37.961246][ T433] ? netlink_attachskb+0x810/0x810
[ 37.961250][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.961256][ T433] netlink_sendmsg+0x714/0xbd0
[ 37.961260][ T433] ? netlink_unicast+0x780/0x780
[ 37.961264][ T433] ? __import_iovec+0x230/0x3b0
[ 37.961272][ T433] ? netlink_unicast+0x780/0x780
[ 37.961275][ T433] ____sys_sendmsg+0x3dd/0x890
[ 37.961280][ T433] ? get_timestamp.constprop.0+0x380/0x380
[ 37.961284][ T433] ? __copy_msghdr+0x3c0/0x3c0
[ 37.961291][ T433] ___sys_sendmsg+0xed/0x170
[ 37.961294][ T433] ? kasan_record_aux_stack+0x8c/0xa0
[ 37.961297][ T433] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 37.961307][ T433] ? copy_msghdr_from_user+0x110/0x110
[ 37.961312][ T433] ? find_held_lock+0x2b/0x80
[ 37.961316][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.961322][ T433] ? find_held_lock+0x2b/0x80
[ 37.961325][ T433] ? __virt_addr_valid+0x22a/0x450
[ 37.961331][ T433] ? __lock_release+0x5d/0x170
[ 37.961340][ T433] __sys_sendmsg+0x10b/0x1a0
[ 37.961344][ T433] ? __call_rcu_common.constprop.0+0x318/0x630
[ 37.961350][ T433] ? __sys_sendmsg_sock+0x20/0x20
[ 37.961362][ T433] ? rcu_is_watching+0x12/0xb0
[ 37.961369][ T433] do_syscall_64+0xc1/0xfd0
[ 37.961376][ T433] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 37.961381][ T433] RIP: 0033:0x7fc451c561d7
[ 37.961386][ T433] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 37.961391][ T433] RSP: 002b:00007ffc2d711608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 37.961397][ T433] RAX: ffffffffffffffda RBX: 00007ffc2d711d30 RCX: 00007fc451c561d7
[ 37.961400][ T433] RDX: 0000000000000000 RSI: 00007ffc2d711670 RDI: 0000000000000005
[ 37.961401][ T433] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 37.961403][ T433] R10: 00007fc451b52f60 R11: 0000000000000246 R12: 0000000000000002
[ 37.961405][ T433] R13: 00000000690def70 R14: 0000000000499600 R15: 0000000000000000
[ 37.961411][ T433]
[ 37.961412][ T433]
[ 37.974169][ T433] Allocated by task 341:
[ 37.974301][ T433] kasan_save_stack+0x24/0x40
[ 37.974478][ T433] kasan_save_track+0x14/0x30
[ 37.974641][ T433] __kasan_kmalloc+0x7b/0x90
[ 37.974821][ T433] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 37.974995][ T433] alloc_netdev_mqs+0x7d/0x1370
[ 37.975169][ T433] rtnl_create_link+0xa9e/0xe20
[ 37.975335][ T433] rtnl_newlink_create+0x203/0x770
[ 37.975500][ T433] __rtnl_newlink+0x231/0xa30
[ 37.975663][ T433] rtnl_newlink+0x693/0xa60
[ 37.975838][ T433] rtnetlink_rcv_msg+0x709/0xc00
[ 37.976003][ T433] netlink_rcv_skb+0x121/0x340
[ 37.976175][ T433] netlink_unicast+0x4aa/0x780
[ 37.976345][ T433] netlink_sendmsg+0x714/0xbd0
[ 37.976510][ T433] ____sys_sendmsg+0x3dd/0x890
[ 37.976676][ T433] ___sys_sendmsg+0xed/0x170
[ 37.976856][ T433] __sys_sendmsg+0x10b/0x1a0
[ 37.977019][ T433] do_syscall_64+0xc1/0xfd0
[ 37.977191][ T433] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 37.977398][ T433]
[ 37.977486][ T433] Freed by task 433:
[ 37.977618][ T433] kasan_save_stack+0x24/0x40
[ 37.977786][ T433] kasan_save_track+0x14/0x30
[ 37.977964][ T433] __kasan_save_free_info+0x3b/0x60
[ 37.978133][ T433] __kasan_slab_free+0x3f/0x60
[ 37.978296][ T433] kfree+0x21d/0x540
[ 37.978420][ T433] device_release+0x9c/0x210
[ 37.978592][ T433] kobject_cleanup+0xfe/0x360
[ 37.978760][ T433] netdev_run_todo+0x81f/0xc60
[ 37.978968][ T433] rtnl_dellink+0x350/0xa30
[ 37.979133][ T433] rtnetlink_rcv_msg+0x709/0xc00
[ 37.979302][ T433] netlink_rcv_skb+0x121/0x340
[ 37.979467][ T433] netlink_unicast+0x4aa/0x780
[ 37.979632][ T433] netlink_sendmsg+0x714/0xbd0
[ 37.979795][ T433] ____sys_sendmsg+0x3dd/0x890
[ 37.979973][ T433] ___sys_sendmsg+0xed/0x170
[ 37.980138][ T433] __sys_sendmsg+0x10b/0x1a0
[ 37.980314][ T433] do_syscall_64+0xc1/0xfd0
[ 37.980478][ T433] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 37.980683][ T433]
[ 37.980771][ T433] The buggy address belongs to the object at ffff888008d8c000
[ 37.980771][ T433] which belongs to the cache kmalloc-4k of size 4096
[ 37.981198][ T433] The buggy address is located 1708 bytes inside of
[ 37.981198][ T433] freed 4096-byte region [ffff888008d8c000, ffff888008d8d000)
[ 37.981616][ T433]
[ 37.981703][ T433] The buggy address belongs to the physical page:
[ 37.981911][ T433] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8d88
[ 37.982221][ T433] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 37.982496][ T433] flags: 0x80000000000040(head|node=0|zone=1)
[ 37.982724][ T433] page_type: f5(slab)
[ 37.982853][ T433] raw: 0080000000000040 ffff888001043700 ffffea000016b610 ffffea00001db010
[ 37.983181][ T433] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 37.983482][ T433] head: 0080000000000040 ffff888001043700 ffffea000016b610 ffffea00001db010
[ 37.983775][ T433] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 37.984085][ T433] head: 0080000000000003 ffffea0000236201 00000000ffffffff 00000000ffffffff
[ 37.984385][ T433] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 37.984674][ T433] page dumped because: kasan: bad access detected
[ 37.984881][ T433]
[ 37.984965][ T433] Memory state around the buggy address:
[ 37.985165][ T433] ffff888008d8c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 37.985419][ T433] ffff888008d8c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 37.985750][ T433] >ffff888008d8c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 37.985993][ T433] ^
[ 37.986171][ T433] ffff888008d8c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 37.986520][ T433] ffff888008d8c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 37.986754][ T433] ==================================================================
[ 37.987256][ T433] Disabling lock debugging due to kernel taint
[ 37.987512][ T433] ------------[ cut here ]------------
[ 37.987664][ T433] refcount_t: underflow; use-after-free.
[ 37.987902][ T433] WARNING: CPU: 3 PID: 433 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 37.988203][ T433] Modules linked in: act_tunnel_key cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel vrf veth
[ 37.988600][ T433] CPU: 3 UID: 0 PID: 433 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 37.988932][ T433] Tainted: [B]=BAD_PAGE
[ 37.989056][ T433] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.989263][ T433] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 37.989487][ T433] Code: 7d 93 02 80 fb 01 0f 87 bb 99 d9 fe 83 e3 01 0f 85 51 ff ff ff c6 05 a8 7d 93 02 01 90 48 c7 c7 60 8d 25 ba e8 32 bf 18 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 b0 63 a1 ff e9 ba fe ff ff
[ 37.990071][ T433] RSP: 0018:ffffc9000094f1f0 EFLAGS: 00010286
[ 37.990280][ T433] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 37.990535][ T433] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 37.990780][ T433] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff757e134
[ 37.991043][ T433] R10: 0000000000000003 R11: ffffc9000094ed80 R12: 0000000000000001
[ 37.991291][ T433] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 37.991574][ T433] FS: 00007fc451a88800(0000) GS:ffff88807a372000(0000) knlGS:0000000000000000
[ 37.991881][ T433] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 37.992096][ T433] CR2: 00005622b861b000 CR3: 000000000e37f006 CR4: 0000000000772ef0
[ 37.992373][ T433] PKRU: 55555554
[ 37.992527][ T433] Call Trace:
[ 37.992685][ T433]
[ 37.992772][ T433] netdev_run_todo+0x5f0/0xc60
[ 37.992944][ T433] ? dev_ingress_queue_create+0x190/0x190
[ 37.993143][ T433] ? generic_xdp_install+0x410/0x410
[ 37.993307][ T433] ? vrf_dellink+0xff/0x150 [vrf]
[ 37.993495][ T433] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 37.993713][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.993881][ T433] rtnl_dellink+0x350/0xa30
[ 37.994046][ T433] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 37.994273][ T433] ? find_held_lock+0x2b/0x80
[ 37.994454][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.994629][ T433] ? find_held_lock+0x2b/0x80
[ 37.994796][ T433] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 37.994972][ T433] ? __lock_release+0x5d/0x170
[ 37.995144][ T433] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 37.995444][ T433] rtnetlink_rcv_msg+0x709/0xc00
[ 37.995619][ T433] ? rtnl_port_fill+0x850/0x850
[ 37.995787][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.995953][ T433] netlink_rcv_skb+0x121/0x340
[ 37.996231][ T433] ? rtnl_port_fill+0x850/0x850
[ 37.996541][ T433] ? netlink_ack+0xdd0/0xdd0
[ 37.996725][ T433] ? netlink_deliver_tap+0x13e/0x340
[ 37.996887][ T433] ? netlink_deliver_tap+0xc3/0x340
[ 37.997049][ T433] netlink_unicast+0x4aa/0x780
[ 37.997241][ T433] ? netlink_attachskb+0x810/0x810
[ 37.997404][ T433] ? __lock_acquire+0x449/0x7e0
[ 37.997574][ T433] netlink_sendmsg+0x714/0xbd0
[ 37.997843][ T433] ? netlink_unicast+0x780/0x780
[ 37.998008][ T433] ? __import_iovec+0x230/0x3b0
[ 37.998277][ T433] ? netlink_unicast+0x780/0x780
[ 37.998444][ T433] ____sys_sendmsg+0x3dd/0x890
[ 37.998624][ T433] ? get_timestamp.constprop.0+0x380/0x380
[ 37.998925][ T433] ? __copy_msghdr+0x3c0/0x3c0
[ 37.999099][ T433] ___sys_sendmsg+0xed/0x170
[ 37.999262][ T433] ? kasan_record_aux_stack+0x8c/0xa0
[ 37.999428][ T433] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 37.999745][ T433] ? copy_msghdr_from_user+0x110/0x110
[ 37.999909][ T433] ? find_held_lock+0x2b/0x80
[ 38.000079][ T433] ? __lock_acquire+0x449/0x7e0
[ 38.000253][ T433] ? find_held_lock+0x2b/0x80
[ 38.000512][ T433] ? __virt_addr_valid+0x22a/0x450
[ 38.000684][ T433] ? __lock_release+0x5d/0x170
[ 38.000848][ T433] __sys_sendmsg+0x10b/0x1a0
[ 38.001013][ T433] ? __call_rcu_common.constprop.0+0x318/0x630
[ 38.001314][ T433] ? __sys_sendmsg_sock+0x20/0x20
[ 38.001489][ T433] ? rcu_is_watching+0x12/0xb0
[ 38.001663][ T433] do_syscall_64+0xc1/0xfd0
[ 38.001827][ T433] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 38.002131][ T433] RIP: 0033:0x7fc451c561d7
[ 38.002316][ T433] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 38.003032][ T433] RSP: 002b:00007ffc2d711608 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 38.003296][ T433] RAX: ffffffffffffffda RBX: 00007ffc2d711d30 RCX: 00007fc451c561d7
[ 38.003552][ T433] RDX: 0000000000000000 RSI: 00007ffc2d711670 RDI: 0000000000000005
[ 38.003811][ T433] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 38.004058][ T433] R10: 00007fc451b52f60 R11: 0000000000000246 R12: 0000000000000002
[ 38.004404][ T433] R13: 00000000690def70 R14: 0000000000499600 R15: 0000000000000000
[ 38.004672][ T433]
[ 38.004802][ T433] irq event stamp: 51513
[ 38.005022][ T433] hardirqs last enabled at (51513): [] kasan_quarantine_put+0xf9/0x210
[ 38.005414][ T433] hardirqs last disabled at (51512): [] kasan_quarantine_put+0xac/0x210
[ 38.005710][ T433] softirqs last enabled at (50928): [] handle_softirqs+0x352/0x610
[ 38.006090][ T433] softirqs last disabled at (50919): [] irq_exit_rcu+0xab/0x100
[ 38.006398][ T433] ---[ end trace 0000000000000000 ]---