[ 19.063897][ T287] 8021q: 802.1Q VLAN Support v1.8
[ 22.622556][ T315] br1: port 1(veth1) entered blocking state
[ 22.623456][ T315] br1: port 1(veth1) entered disabled state
[ 22.624473][ T315] veth1: entered allmulticast mode
[ 22.628098][ T315] veth1: entered promiscuous mode
[ 22.752433][ T37] br1: port 1(veth1) entered blocking state
[ 22.752990][ T37] br1: port 1(veth1) entered forwarding state
[ 34.660798][ T375] ==================================================================
[ 34.661255][ T375] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 34.661631][ T375] Read of size 1 at addr ffff888009bbc6ac by task ip/375
[ 34.661970][ T375]
[ 34.662110][ T375] CPU: 3 UID: 0 PID: 375 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.662117][ T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.662120][ T375] Call Trace:
[ 34.662123][ T375]
[ 34.662126][ T375] dump_stack_lvl+0x82/0xc0
[ 34.662139][ T375] print_address_description.constprop.0+0x2c/0x3a0
[ 34.662149][ T375] ? kobject_put+0xbb/0xd0
[ 34.662155][ T375] print_report+0xb4/0x270
[ 34.662159][ T375] ? kobject_put+0xbb/0xd0
[ 34.662163][ T375] ? kasan_addr_to_slab+0x21/0x70
[ 34.662168][ T375] ? kobject_put+0xbb/0xd0
[ 34.662173][ T375] kasan_report+0xca/0x100
[ 34.662180][ T375] ? kobject_put+0xbb/0xd0
[ 34.662188][ T375] kobject_put+0xbb/0xd0
[ 34.662193][ T375] netdev_run_todo+0x5f0/0xc60
[ 34.662200][ T375] ? dev_ingress_queue_create+0x190/0x190
[ 34.662205][ T375] ? generic_xdp_install+0x410/0x410
[ 34.662213][ T375] ? lockdep_hardirqs_on+0x7c/0x110
[ 34.662224][ T375] rtnl_dellink+0x350/0xa30
[ 34.662233][ T375] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.662271][ T375] ? find_held_lock+0x2b/0x80
[ 34.662281][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.662292][ T375] ? find_held_lock+0x2b/0x80
[ 34.662298][ T375] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.662302][ T375] ? __lock_release+0x5d/0x170
[ 34.662309][ T375] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.662315][ T375] rtnetlink_rcv_msg+0x709/0xc00
[ 34.662321][ T375] ? rtnl_port_fill+0x850/0x850
[ 34.662325][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.662337][ T375] netlink_rcv_skb+0x121/0x340
[ 34.662344][ T375] ? rtnl_port_fill+0x850/0x850
[ 34.662350][ T375] ? netlink_ack+0xdd0/0xdd0
[ 34.662363][ T375] ? netlink_deliver_tap+0x13e/0x340
[ 34.662368][ T375] ? netlink_deliver_tap+0xc3/0x340
[ 34.662375][ T375] netlink_unicast+0x4aa/0x780
[ 34.662383][ T375] ? netlink_attachskb+0x810/0x810
[ 34.662390][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.662400][ T375] netlink_sendmsg+0x714/0xbd0
[ 34.662408][ T375] ? netlink_unicast+0x780/0x780
[ 34.662413][ T375] ? __import_iovec+0x230/0x3b0
[ 34.662423][ T375] ? netlink_unicast+0x780/0x780
[ 34.662428][ T375] ____sys_sendmsg+0x3dd/0x890
[ 34.662438][ T375] ? get_timestamp.constprop.0+0x380/0x380
[ 34.662444][ T375] ? __copy_msghdr+0x3c0/0x3c0
[ 34.662458][ T375] ___sys_sendmsg+0xed/0x170
[ 34.662463][ T375] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.662469][ T375] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.662488][ T375] ? copy_msghdr_from_user+0x110/0x110
[ 34.662496][ T375] ? find_held_lock+0x2b/0x80
[ 34.662505][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.662515][ T375] ? find_held_lock+0x2b/0x80
[ 34.662520][ T375] ? __virt_addr_valid+0x22a/0x450
[ 34.662528][ T375] ? __lock_release+0x5d/0x170
[ 34.662538][ T375] __sys_sendmsg+0x10b/0x1a0
[ 34.662543][ T375] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.662549][ T375] ? __sys_sendmsg_sock+0x20/0x20
[ 34.662562][ T375] ? rcu_is_watching+0x12/0xb0
[ 34.662569][ T375] do_syscall_64+0xc1/0xfd0
[ 34.662577][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.662584][ T375] RIP: 0033:0x7faeac8511d7
[ 34.662591][ T375] 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
[ 34.662595][ T375] RSP: 002b:00007ffee0e42b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.662602][ T375] RAX: ffffffffffffffda RBX: 00007ffee0e43280 RCX: 00007faeac8511d7
[ 34.662605][ T375] RDX: 0000000000000000 RSI: 00007ffee0e42bc0 RDI: 0000000000000005
[ 34.662607][ T375] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.662610][ T375] R10: 00007faeac74df60 R11: 0000000000000246 R12: 0000000000000002
[ 34.662612][ T375] R13: 00000000690def67 R14: 0000000000499600 R15: 0000000000000000
[ 34.662621][ T375]
[ 34.662623][ T375]
[ 34.682593][ T375] Allocated by task 368:
[ 34.682811][ T375] kasan_save_stack+0x24/0x40
[ 34.683100][ T375] kasan_save_track+0x14/0x30
[ 34.683371][ T375] __kasan_kmalloc+0x7b/0x90
[ 34.683629][ T375] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 34.683892][ T375] alloc_netdev_mqs+0x7d/0x1370
[ 34.684189][ T375] rtnl_create_link+0xa9e/0xe20
[ 34.684437][ T375] rtnl_newlink_create+0x203/0x770
[ 34.684684][ T375] __rtnl_newlink+0x231/0xa30
[ 34.684927][ T375] rtnl_newlink+0x693/0xa60
[ 34.685173][ T375] rtnetlink_rcv_msg+0x709/0xc00
[ 34.685434][ T375] netlink_rcv_skb+0x121/0x340
[ 34.685669][ T375] netlink_unicast+0x4aa/0x780
[ 34.685889][ T375] netlink_sendmsg+0x714/0xbd0
[ 34.686174][ T375] ____sys_sendmsg+0x3dd/0x890
[ 34.686444][ T375] ___sys_sendmsg+0xed/0x170
[ 34.686728][ T375] __sys_sendmsg+0x10b/0x1a0
[ 34.687013][ T375] do_syscall_64+0xc1/0xfd0
[ 34.687298][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.687660][ T375]
[ 34.687813][ T375] Freed by task 375:
[ 34.688026][ T375] kasan_save_stack+0x24/0x40
[ 34.688321][ T375] kasan_save_track+0x14/0x30
[ 34.688618][ T375] __kasan_save_free_info+0x3b/0x60
[ 34.688896][ T375] __kasan_slab_free+0x3f/0x60
[ 34.689168][ T375] kfree+0x21d/0x540
[ 34.689373][ T375] device_release+0x9c/0x210
[ 34.689660][ T375] kobject_cleanup+0xfe/0x360
[ 34.689947][ T375] netdev_run_todo+0x81f/0xc60
[ 34.690231][ T375] rtnl_dellink+0x350/0xa30
[ 34.690519][ T375] rtnetlink_rcv_msg+0x709/0xc00
[ 34.690781][ T375] netlink_rcv_skb+0x121/0x340
[ 34.691050][ T375] netlink_unicast+0x4aa/0x780
[ 34.691318][ T375] netlink_sendmsg+0x714/0xbd0
[ 34.691582][ T375] ____sys_sendmsg+0x3dd/0x890
[ 34.691864][ T375] ___sys_sendmsg+0xed/0x170
[ 34.692147][ T375] __sys_sendmsg+0x10b/0x1a0
[ 34.692416][ T375] do_syscall_64+0xc1/0xfd0
[ 34.692696][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.693048][ T375]
[ 34.693192][ T375] The buggy address belongs to the object at ffff888009bbc000
[ 34.693192][ T375] which belongs to the cache kmalloc-4k of size 4096
[ 34.693864][ T375] The buggy address is located 1708 bytes inside of
[ 34.693864][ T375] freed 4096-byte region [ffff888009bbc000, ffff888009bbd000)
[ 34.694512][ T375]
[ 34.694651][ T375] The buggy address belongs to the physical page:
[ 34.694976][ T375] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9bb8
[ 34.695453][ T375] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 34.695832][ T375] flags: 0x80000000000040(head|node=0|zone=1)
[ 34.696151][ T375] page_type: f5(slab)
[ 34.696350][ T375] raw: 0080000000000040 ffff888001043700 ffffea0000294e10 ffffea0000172e10
[ 34.696855][ T375] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.697323][ T375] head: 0080000000000040 ffff888001043700 ffffea0000294e10 ffffea0000172e10
[ 34.697842][ T375] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 34.698348][ T375] head: 0080000000000003 ffffea000026ee01 00000000ffffffff 00000000ffffffff
[ 34.698864][ T375] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 34.699366][ T375] page dumped because: kasan: bad access detected
[ 34.699711][ T375]
[ 34.699846][ T375] Memory state around the buggy address:
[ 34.700123][ T375] ffff888009bbc580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.700531][ T375] ffff888009bbc600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.700939][ T375] >ffff888009bbc680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.701336][ T375] ^
[ 34.701577][ T375] ffff888009bbc700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.701959][ T375] ffff888009bbc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 34.702355][ T375] ==================================================================
[ 34.703588][ T375] Disabling lock debugging due to kernel taint
[ 34.703869][ T375] ------------[ cut here ]------------
[ 34.704077][ T375] refcount_t: underflow; use-after-free.
[ 34.704324][ T375] WARNING: CPU: 0 PID: 375 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 34.704729][ T375] Modules linked in: bridge stp llc 8021q vrf veth
[ 34.704995][ T375] CPU: 0 UID: 0 PID: 375 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 34.705374][ T375] Tainted: [B]=BAD_PAGE
[ 34.705542][ T375] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.705787][ T375] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 34.706031][ T375] 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 e5 ab 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
[ 34.706722][ T375] RSP: 0018:ffffc900005271f0 EFLAGS: 00010286
[ 34.706991][ T375] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 34.707307][ T375] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 34.707646][ T375] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff58fe134
[ 34.707996][ T375] R10: 0000000000000003 R11: ffffc90000526d80 R12: 0000000000000001
[ 34.708331][ T375] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 34.708691][ T375] FS: 00007faeac683800(0000) GS:ffff888082bf2000(0000) knlGS:0000000000000000
[ 34.709071][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 34.709353][ T375] CR2: 00007fc2bfc055f0 CR3: 000000000bf39003 CR4: 0000000000772ef0
[ 34.709681][ T375] PKRU: 55555554
[ 34.709839][ T375] Call Trace:
[ 34.710007][ T375]
[ 34.710133][ T375] netdev_run_todo+0x5f0/0xc60
[ 34.710344][ T375] ? dev_ingress_queue_create+0x190/0x190
[ 34.710539][ T375] ? generic_xdp_install+0x410/0x410
[ 34.710720][ T375] ? lockdep_hardirqs_on+0x7c/0x110
[ 34.710902][ T375] rtnl_dellink+0x350/0xa30
[ 34.711085][ T375] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.711335][ T375] ? find_held_lock+0x2b/0x80
[ 34.711540][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.711721][ T375] ? find_held_lock+0x2b/0x80
[ 34.711903][ T375] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 34.712088][ T375] ? __lock_release+0x5d/0x170
[ 34.712343][ T375] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 34.712586][ T375] rtnetlink_rcv_msg+0x709/0xc00
[ 34.712835][ T375] ? rtnl_port_fill+0x850/0x850
[ 34.713086][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.713312][ T375] netlink_rcv_skb+0x121/0x340
[ 34.713509][ T375] ? rtnl_port_fill+0x850/0x850
[ 34.713724][ T375] ? netlink_ack+0xdd0/0xdd0
[ 34.713925][ T375] ? netlink_deliver_tap+0x13e/0x340
[ 34.714105][ T375] ? netlink_deliver_tap+0xc3/0x340
[ 34.714362][ T375] netlink_unicast+0x4aa/0x780
[ 34.714608][ T375] ? netlink_attachskb+0x810/0x810
[ 34.714845][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.715026][ T375] netlink_sendmsg+0x714/0xbd0
[ 34.715209][ T375] ? netlink_unicast+0x780/0x780
[ 34.715386][ T375] ? __import_iovec+0x230/0x3b0
[ 34.715576][ T375] ? netlink_unicast+0x780/0x780
[ 34.715753][ T375] ____sys_sendmsg+0x3dd/0x890
[ 34.715933][ T375] ? get_timestamp.constprop.0+0x380/0x380
[ 34.716151][ T375] ? __copy_msghdr+0x3c0/0x3c0
[ 34.716353][ T375] ___sys_sendmsg+0xed/0x170
[ 34.716544][ T375] ? kasan_record_aux_stack+0x8c/0xa0
[ 34.716725][ T375] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 34.716951][ T375] ? copy_msghdr_from_user+0x110/0x110
[ 34.717128][ T375] ? find_held_lock+0x2b/0x80
[ 34.717306][ T375] ? __lock_acquire+0x449/0x7e0
[ 34.717497][ T375] ? find_held_lock+0x2b/0x80
[ 34.717698][ T375] ? __virt_addr_valid+0x22a/0x450
[ 34.717881][ T375] ? __lock_release+0x5d/0x170
[ 34.718061][ T375] __sys_sendmsg+0x10b/0x1a0
[ 34.718240][ T375] ? __call_rcu_common.constprop.0+0x318/0x630
[ 34.718540][ T375] ? __sys_sendmsg_sock+0x20/0x20
[ 34.718787][ T375] ? rcu_is_watching+0x12/0xb0
[ 34.719027][ T375] do_syscall_64+0xc1/0xfd0
[ 34.719264][ T375] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 34.719542][ T375] RIP: 0033:0x7faeac8511d7
[ 34.719731][ T375] 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
[ 34.720443][ T375] RSP: 002b:00007ffee0e42b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 34.720793][ T375] RAX: ffffffffffffffda RBX: 00007ffee0e43280 RCX: 00007faeac8511d7
[ 34.721120][ T375] RDX: 0000000000000000 RSI: 00007ffee0e42bc0 RDI: 0000000000000005
[ 34.721520][ T375] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 34.721796][ T375] R10: 00007faeac74df60 R11: 0000000000000246 R12: 0000000000000002
[ 34.722072][ T375] R13: 00000000690def67 R14: 0000000000499600 R15: 0000000000000000
[ 34.722350][ T375]
[ 34.722502][ T375] irq event stamp: 48797
[ 34.722639][ T375] hardirqs last enabled at (48797): [] finish_task_switch.isra.0+0x245/0x960
[ 34.722988][ T375] hardirqs last disabled at (48796): [] __schedule+0x94a/0x1b10
[ 34.723312][ T375] softirqs last enabled at (48604): [] handle_softirqs+0x352/0x610
[ 34.723692][ T375] softirqs last disabled at (48597): [] irq_exit_rcu+0xab/0x100
[ 34.724024][ T375] ---[ end trace 0000000000000000 ]---
[ 37.974130][ T415] br1: port 1(veth1) entered disabled state
[ 38.043802][ T416] veth1: left allmulticast mode
[ 38.044030][ T416] veth1: left promiscuous mode
[ 38.044358][ T416] br1: port 1(veth1) entered disabled state