[ 18.109058][ T287] 8021q: 802.1Q VLAN Support v1.8
[ 21.063323][ T313] br1: port 1(veth1) entered blocking state
[ 21.064002][ T313] br1: port 1(veth1) entered disabled state
[ 21.064686][ T313] veth1: entered allmulticast mode
[ 21.068395][ T313] veth1: entered promiscuous mode
[ 21.205039][ T36] br1: port 1(veth1) entered blocking state
[ 21.205597][ T36] br1: port 1(veth1) entered forwarding state
[ 22.071203][ T321] ip (321) used greatest stack depth: 23952 bytes left
[ 40.508833][ T444] ==================================================================
[ 40.509189][ T444] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 40.509514][ T444] Read of size 1 at addr ffff88800819c6ac by task ip/444
[ 40.509724][ T444]
[ 40.509823][ T444] CPU: 0 UID: 0 PID: 444 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 40.509829][ T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.509834][ T444] Call Trace:
[ 40.509838][ T444]
[ 40.509840][ T444] dump_stack_lvl+0x82/0xc0
[ 40.509846][ T444] print_address_description.constprop.0+0x2c/0x3a0
[ 40.509857][ T444] ? kobject_put+0xbb/0xd0
[ 40.509861][ T444] print_report+0xb4/0x270
[ 40.509864][ T444] ? kobject_put+0xbb/0xd0
[ 40.509867][ T444] ? kasan_addr_to_slab+0x21/0x70
[ 40.509870][ T444] ? kobject_put+0xbb/0xd0
[ 40.509873][ T444] kasan_report+0xca/0x100
[ 40.509877][ T444] ? kobject_put+0xbb/0xd0
[ 40.509882][ T444] kobject_put+0xbb/0xd0
[ 40.509886][ T444] netdev_run_todo+0x5f0/0xc60
[ 40.509897][ T444] ? dev_ingress_queue_create+0x190/0x190
[ 40.509900][ T444] ? generic_xdp_install+0x410/0x410
[ 40.509904][ T444] ? lockdep_hardirqs_on+0x7c/0x110
[ 40.509911][ T444] rtnl_dellink+0x350/0xa30
[ 40.509917][ T444] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 40.509936][ T444] ? find_held_lock+0x2b/0x80
[ 40.509943][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.509950][ T444] ? find_held_lock+0x2b/0x80
[ 40.509954][ T444] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 40.509956][ T444] ? __lock_release+0x5d/0x170
[ 40.509961][ T444] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 40.509965][ T444] rtnetlink_rcv_msg+0x709/0xc00
[ 40.509969][ T444] ? rtnl_port_fill+0x850/0x850
[ 40.509971][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.509979][ T444] netlink_rcv_skb+0x121/0x340
[ 40.509984][ T444] ? rtnl_port_fill+0x850/0x850
[ 40.509988][ T444] ? netlink_ack+0xdd0/0xdd0
[ 40.509995][ T444] ? netlink_deliver_tap+0x13e/0x340
[ 40.509998][ T444] ? netlink_deliver_tap+0xc3/0x340
[ 40.510001][ T444] netlink_unicast+0x4aa/0x780
[ 40.510006][ T444] ? netlink_attachskb+0x810/0x810
[ 40.510009][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.510017][ T444] netlink_sendmsg+0x714/0xbd0
[ 40.510022][ T444] ? netlink_unicast+0x780/0x780
[ 40.510025][ T444] ? __import_iovec+0x230/0x3b0
[ 40.510034][ T444] ? netlink_unicast+0x780/0x780
[ 40.510038][ T444] ____sys_sendmsg+0x3dd/0x890
[ 40.510047][ T444] ? get_timestamp.constprop.0+0x380/0x380
[ 40.510050][ T444] ? __copy_msghdr+0x3c0/0x3c0
[ 40.510059][ T444] ___sys_sendmsg+0xed/0x170
[ 40.510062][ T444] ? kasan_record_aux_stack+0x8c/0xa0
[ 40.510065][ T444] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 40.510071][ T444] ? copy_msghdr_from_user+0x110/0x110
[ 40.510076][ T444] ? find_held_lock+0x2b/0x80
[ 40.510081][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.510086][ T444] ? find_held_lock+0x2b/0x80
[ 40.510090][ T444] ? __virt_addr_valid+0x22a/0x450
[ 40.510099][ T444] ? __lock_release+0x5d/0x170
[ 40.510109][ T444] __sys_sendmsg+0x10b/0x1a0
[ 40.510114][ T444] ? __call_rcu_common.constprop.0+0x318/0x630
[ 40.510119][ T444] ? __sys_sendmsg_sock+0x20/0x20
[ 40.510131][ T444] ? rcu_is_watching+0x12/0xb0
[ 40.510135][ T444] do_syscall_64+0xc1/0xfd0
[ 40.510142][ T444] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 40.510146][ T444] RIP: 0033:0x7f646dc701d7
[ 40.510152][ T444] 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
[ 40.510155][ T444] RSP: 002b:00007ffd13138698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 40.510163][ T444] RAX: ffffffffffffffda RBX: 00007ffd13138dc0 RCX: 00007f646dc701d7
[ 40.510165][ T444] RDX: 0000000000000000 RSI: 00007ffd13138700 RDI: 0000000000000005
[ 40.510167][ T444] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 40.510169][ T444] R10: 00007f646db6cf60 R11: 0000000000000246 R12: 0000000000000002
[ 40.510171][ T444] R13: 00000000690dfa5e R14: 0000000000499600 R15: 0000000000000000
[ 40.510177][ T444]
[ 40.510179][ T444]
[ 40.523127][ T444] Allocated by task 320:
[ 40.523270][ T444] kasan_save_stack+0x24/0x40
[ 40.523583][ T444] kasan_save_track+0x14/0x30
[ 40.523751][ T444] __kasan_kmalloc+0x7b/0x90
[ 40.523921][ T444] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 40.524098][ T444] alloc_netdev_mqs+0x7d/0x1370
[ 40.524298][ T444] rtnl_create_link+0xa9e/0xe20
[ 40.524470][ T444] rtnl_newlink_create+0x203/0x770
[ 40.524650][ T444] __rtnl_newlink+0x231/0xa30
[ 40.524819][ T444] rtnl_newlink+0x693/0xa60
[ 40.524988][ T444] rtnetlink_rcv_msg+0x709/0xc00
[ 40.525167][ T444] netlink_rcv_skb+0x121/0x340
[ 40.525351][ T444] netlink_unicast+0x4aa/0x780
[ 40.525515][ T444] netlink_sendmsg+0x714/0xbd0
[ 40.525694][ T444] ____sys_sendmsg+0x3dd/0x890
[ 40.525866][ T444] ___sys_sendmsg+0xed/0x170
[ 40.526044][ T444] __sys_sendmsg+0x10b/0x1a0
[ 40.526226][ T444] do_syscall_64+0xc1/0xfd0
[ 40.526413][ T444] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 40.526633][ T444]
[ 40.526720][ T444] Freed by task 444:
[ 40.526848][ T444] kasan_save_stack+0x24/0x40
[ 40.527024][ T444] kasan_save_track+0x14/0x30
[ 40.527199][ T444] __kasan_save_free_info+0x3b/0x60
[ 40.527391][ T444] __kasan_slab_free+0x3f/0x60
[ 40.527562][ T444] kfree+0x21d/0x540
[ 40.527692][ T444] device_release+0x9c/0x210
[ 40.527865][ T444] kobject_cleanup+0xfe/0x360
[ 40.528046][ T444] netdev_run_todo+0x81f/0xc60
[ 40.528230][ T444] rtnl_dellink+0x350/0xa30
[ 40.528608][ T444] rtnetlink_rcv_msg+0x709/0xc00
[ 40.528780][ T444] netlink_rcv_skb+0x121/0x340
[ 40.528957][ T444] netlink_unicast+0x4aa/0x780
[ 40.529139][ T444] netlink_sendmsg+0x714/0xbd0
[ 40.529415][ T444] ____sys_sendmsg+0x3dd/0x890
[ 40.529586][ T444] ___sys_sendmsg+0xed/0x170
[ 40.529756][ T444] __sys_sendmsg+0x10b/0x1a0
[ 40.529929][ T444] do_syscall_64+0xc1/0xfd0
[ 40.530203][ T444] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 40.530431][ T444]
[ 40.530523][ T444] The buggy address belongs to the object at ffff88800819c000
[ 40.530523][ T444] which belongs to the cache kmalloc-4k of size 4096
[ 40.531034][ T444] The buggy address is located 1708 bytes inside of
[ 40.531034][ T444] freed 4096-byte region [ffff88800819c000, ffff88800819d000)
[ 40.531452][ T444]
[ 40.531538][ T444] The buggy address belongs to the physical page:
[ 40.531850][ T444] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8198
[ 40.532164][ T444] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 40.532437][ T444] flags: 0x80000000000040(head|node=0|zone=1)
[ 40.532759][ T444] page_type: f5(slab)
[ 40.532894][ T444] raw: 0080000000000040 ffff888001043700 ffffea00001ff810 ffffea0000202410
[ 40.533219][ T444] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 40.533648][ T444] head: 0080000000000040 ffff888001043700 ffffea00001ff810 ffffea0000202410
[ 40.533955][ T444] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 40.534362][ T444] head: 0080000000000003 ffffea0000206601 00000000ffffffff 00000000ffffffff
[ 40.534654][ T444] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 40.535058][ T444] page dumped because: kasan: bad access detected
[ 40.535284][ T444]
[ 40.535369][ T444] Memory state around the buggy address:
[ 40.535531][ T444] ffff88800819c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 40.535869][ T444] ffff88800819c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 40.536124][ T444] >ffff88800819c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 40.536386][ T444] ^
[ 40.536654][ T444] ffff88800819c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 40.536897][ T444] ffff88800819c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 40.537144][ T444] ==================================================================
[ 40.537560][ T444] Disabling lock debugging due to kernel taint
[ 40.537766][ T444] ------------[ cut here ]------------
[ 40.537926][ T444] refcount_t: underflow; use-after-free.
[ 40.538953][ T444] WARNING: CPU: 0 PID: 444 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 40.539294][ T444] Modules linked in: bridge stp llc 8021q vrf veth
[ 40.539539][ T444] CPU: 0 UID: 0 PID: 444 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 40.539869][ T444] Tainted: [B]=BAD_PAGE
[ 40.539995][ T444] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.540219][ T444] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 40.540449][ T444] 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 a5 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
[ 40.541082][ T444] RSP: 0018:ffffc90000d071f0 EFLAGS: 00010286
[ 40.541328][ T444] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 40.541595][ T444] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 40.541845][ T444] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff767e134
[ 40.542096][ T444] R10: 0000000000000003 R11: ffffc90000d06d80 R12: 0000000000000001
[ 40.542375][ T444] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 40.542627][ T444] FS: 00007f646daa2800(0000) GS:ffff8880799f2000(0000) knlGS:0000000000000000
[ 40.542914][ T444] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 40.543147][ T444] CR2: 00000000004e5848 CR3: 0000000016407001 CR4: 0000000000772ef0
[ 40.543413][ T444] PKRU: 55555554
[ 40.543545][ T444] Call Trace:
[ 40.543670][ T444]
[ 40.543759][ T444] netdev_run_todo+0x5f0/0xc60
[ 40.543939][ T444] ? dev_ingress_queue_create+0x190/0x190
[ 40.544121][ T444] ? generic_xdp_install+0x410/0x410
[ 40.544311][ T444] ? lockdep_hardirqs_on+0x7c/0x110
[ 40.544480][ T444] rtnl_dellink+0x350/0xa30
[ 40.544645][ T444] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 40.544861][ T444] ? find_held_lock+0x2b/0x80
[ 40.545033][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.545893][ T444] ? find_held_lock+0x2b/0x80
[ 40.546069][ T444] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 40.546334][ T444] ? __lock_release+0x5d/0x170
[ 40.546505][ T444] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 40.546707][ T444] rtnetlink_rcv_msg+0x709/0xc00
[ 40.546872][ T444] ? rtnl_port_fill+0x850/0x850
[ 40.547050][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.547306][ T444] netlink_rcv_skb+0x121/0x340
[ 40.547482][ T444] ? rtnl_port_fill+0x850/0x850
[ 40.547652][ T444] ? netlink_ack+0xdd0/0xdd0
[ 40.547833][ T444] ? netlink_deliver_tap+0x13e/0x340
[ 40.547995][ T444] ? netlink_deliver_tap+0xc3/0x340
[ 40.548241][ T444] netlink_unicast+0x4aa/0x780
[ 40.548427][ T444] ? netlink_attachskb+0x810/0x810
[ 40.548599][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.548769][ T444] netlink_sendmsg+0x714/0xbd0
[ 40.548968][ T444] ? netlink_unicast+0x780/0x780
[ 40.549255][ T444] ? __import_iovec+0x230/0x3b0
[ 40.549439][ T444] ? netlink_unicast+0x780/0x780
[ 40.549605][ T444] ____sys_sendmsg+0x3dd/0x890
[ 40.549774][ T444] ? get_timestamp.constprop.0+0x380/0x380
[ 40.549977][ T444] ? __copy_msghdr+0x3c0/0x3c0
[ 40.550230][ T444] ___sys_sendmsg+0xed/0x170
[ 40.550455][ T444] ? kasan_record_aux_stack+0x8c/0xa0
[ 40.550624][ T444] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 40.550840][ T444] ? copy_msghdr_from_user+0x110/0x110
[ 40.551026][ T444] ? find_held_lock+0x2b/0x80
[ 40.551294][ T444] ? __lock_acquire+0x449/0x7e0
[ 40.551486][ T444] ? find_held_lock+0x2b/0x80
[ 40.551651][ T444] ? __virt_addr_valid+0x22a/0x450
[ 40.551817][ T444] ? __lock_release+0x5d/0x170
[ 40.551991][ T444] __sys_sendmsg+0x10b/0x1a0
[ 40.552278][ T444] ? __call_rcu_common.constprop.0+0x318/0x630
[ 40.552495][ T444] ? __sys_sendmsg_sock+0x20/0x20
[ 40.552666][ T444] ? rcu_is_watching+0x12/0xb0
[ 40.552831][ T444] do_syscall_64+0xc1/0xfd0
[ 40.553019][ T444] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 40.553333][ T444] RIP: 0033:0x7f646dc701d7
[ 40.553541][ T444] 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
[ 40.554236][ T444] RSP: 002b:00007ffd13138698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 40.554527][ T444] RAX: ffffffffffffffda RBX: 00007ffd13138dc0 RCX: 00007f646dc701d7
[ 40.554781][ T444] RDX: 0000000000000000 RSI: 00007ffd13138700 RDI: 0000000000000005
[ 40.555279][ T444] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 40.555541][ T444] R10: 00007f646db6cf60 R11: 0000000000000246 R12: 0000000000000002
[ 40.555789][ T444] R13: 00000000690dfa5e R14: 0000000000499600 R15: 0000000000000000
[ 40.556232][ T444]
[ 40.556476][ T444] irq event stamp: 42417
[ 40.556613][ T444] hardirqs last enabled at (42417): [] finish_task_switch.isra.0+0x245/0x960
[ 40.556950][ T444] hardirqs last disabled at (42416): [] __schedule+0x94a/0x1b10
[ 40.557448][ T444] softirqs last enabled at (42310): [] handle_softirqs+0x352/0x610
[ 40.557838][ T444] softirqs last disabled at (42301): [] irq_exit_rcu+0xab/0x100
[ 40.558222][ T444] ---[ end trace 0000000000000000 ]---
[ 41.020010][ T452] br1: port 1(veth1) entered disabled state
[ 41.095437][ T454] veth1: left allmulticast mode
[ 41.095704][ T454] veth1: left promiscuous mode
[ 41.096046][ T454] br1: port 1(veth1) entered disabled state