[ 18.820070][ T249] ip (249) used greatest stack depth: 24192 bytes left
[ 21.776418][ T290] veth0: entered allmulticast mode
[ 21.777400][ T290] veth1: entered allmulticast mode
[ 21.778229][ T290] veth2: entered allmulticast mode
[ 21.778801][ T290] veth3: entered allmulticast mode
[ 21.779351][ T290] veth4: entered allmulticast mode
[ 21.779939][ T290] veth5: entered allmulticast mode
[ 38.618055][ T384] GACT probability NOT on
[ 38.654823][ T382] tc (382) used greatest stack depth: 24112 bytes left
[ 62.254639][ T646] ==================================================================
[ 62.255000][ T646] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 62.255316][ T646] Read of size 1 at addr ffff88800af3c6ac by task ip/646
[ 62.255557][ T646]
[ 62.255662][ T646] CPU: 0 UID: 0 PID: 646 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 62.255667][ T646] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 62.255669][ T646] Call Trace:
[ 62.255676][ T646]
[ 62.255677][ T646] dump_stack_lvl+0x82/0xc0
[ 62.255685][ T646] print_address_description.constprop.0+0x2c/0x3a0
[ 62.255693][ T646] ? kobject_put+0xbb/0xd0
[ 62.255697][ T646] print_report+0xb4/0x270
[ 62.255700][ T646] ? kobject_put+0xbb/0xd0
[ 62.255703][ T646] ? kasan_addr_to_slab+0x21/0x70
[ 62.255706][ T646] ? kobject_put+0xbb/0xd0
[ 62.255709][ T646] kasan_report+0xca/0x100
[ 62.255713][ T646] ? kobject_put+0xbb/0xd0
[ 62.255718][ T646] kobject_put+0xbb/0xd0
[ 62.255722][ T646] netdev_run_todo+0x5f0/0xc60
[ 62.255727][ T646] ? dev_ingress_queue_create+0x190/0x190
[ 62.255732][ T646] ? generic_xdp_install+0x410/0x410
[ 62.255737][ T646] ? vrf_dellink+0xff/0x150 [vrf]
[ 62.255743][ T646] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 62.255748][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.255758][ T646] rtnl_dellink+0x350/0xa30
[ 62.255764][ T646] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 62.255783][ T646] ? find_held_lock+0x2b/0x80
[ 62.255788][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.255793][ T646] ? find_held_lock+0x2b/0x80
[ 62.255797][ T646] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 62.255799][ T646] ? __lock_release+0x5d/0x170
[ 62.255804][ T646] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 62.255807][ T646] rtnetlink_rcv_msg+0x709/0xc00
[ 62.255811][ T646] ? rtnl_port_fill+0x850/0x850
[ 62.255814][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.255821][ T646] netlink_rcv_skb+0x121/0x340
[ 62.255827][ T646] ? rtnl_port_fill+0x850/0x850
[ 62.255831][ T646] ? netlink_ack+0xdd0/0xdd0
[ 62.255837][ T646] ? netlink_deliver_tap+0x13e/0x340
[ 62.255840][ T646] ? netlink_deliver_tap+0xc3/0x340
[ 62.255843][ T646] netlink_unicast+0x4aa/0x780
[ 62.255848][ T646] ? netlink_attachskb+0x810/0x810
[ 62.255852][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.255857][ T646] netlink_sendmsg+0x714/0xbd0
[ 62.255861][ T646] ? netlink_unicast+0x780/0x780
[ 62.255865][ T646] ? __import_iovec+0x230/0x3b0
[ 62.255876][ T646] ? netlink_unicast+0x780/0x780
[ 62.255879][ T646] ____sys_sendmsg+0x3dd/0x890
[ 62.255886][ T646] ? get_timestamp.constprop.0+0x380/0x380
[ 62.255889][ T646] ? __copy_msghdr+0x3c0/0x3c0
[ 62.255898][ T646] ___sys_sendmsg+0xed/0x170
[ 62.255901][ T646] ? kasan_record_aux_stack+0x8c/0xa0
[ 62.255904][ T646] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 62.255913][ T646] ? copy_msghdr_from_user+0x110/0x110
[ 62.255918][ T646] ? find_held_lock+0x2b/0x80
[ 62.255922][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.255946][ T646] ? find_held_lock+0x2b/0x80
[ 62.255951][ T646] ? __virt_addr_valid+0x22a/0x450
[ 62.255964][ T646] ? __lock_release+0x5d/0x170
[ 62.255971][ T646] __sys_sendmsg+0x10b/0x1a0
[ 62.255974][ T646] ? __call_rcu_common.constprop.0+0x318/0x630
[ 62.255978][ T646] ? __sys_sendmsg_sock+0x20/0x20
[ 62.255985][ T646] ? rcu_is_watching+0x12/0xb0
[ 62.255989][ T646] do_syscall_64+0xc1/0xfd0
[ 62.255996][ T646] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 62.256005][ T646] RIP: 0033:0x7ff2a02461d7
[ 62.256010][ T646] 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
[ 62.256013][ T646] RSP: 002b:00007ffd22c51fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 62.256018][ T646] RAX: ffffffffffffffda RBX: 00007ffd22c52700 RCX: 00007ff2a02461d7
[ 62.256020][ T646] RDX: 0000000000000000 RSI: 00007ffd22c52040 RDI: 0000000000000005
[ 62.256022][ T646] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 62.256023][ T646] R10: 00007ff2a0142f60 R11: 0000000000000246 R12: 0000000000000002
[ 62.256025][ T646] R13: 00000000690dee2b R14: 0000000000499600 R15: 0000000000000000
[ 62.256032][ T646]
[ 62.256033][ T646]
[ 62.270809][ T646] Allocated by task 332:
[ 62.270959][ T646] kasan_save_stack+0x24/0x40
[ 62.271163][ T646] kasan_save_track+0x14/0x30
[ 62.271360][ T646] __kasan_kmalloc+0x7b/0x90
[ 62.271559][ T646] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 62.271757][ T646] alloc_netdev_mqs+0x7d/0x1370
[ 62.271953][ T646] rtnl_create_link+0xa9e/0xe20
[ 62.272148][ T646] rtnl_newlink_create+0x203/0x770
[ 62.272346][ T646] __rtnl_newlink+0x231/0xa30
[ 62.272543][ T646] rtnl_newlink+0x693/0xa60
[ 62.272738][ T646] rtnetlink_rcv_msg+0x709/0xc00
[ 62.272931][ T646] netlink_rcv_skb+0x121/0x340
[ 62.273133][ T646] netlink_unicast+0x4aa/0x780
[ 62.273326][ T646] netlink_sendmsg+0x714/0xbd0
[ 62.273522][ T646] ____sys_sendmsg+0x3dd/0x890
[ 62.273716][ T646] ___sys_sendmsg+0xed/0x170
[ 62.273912][ T646] __sys_sendmsg+0x10b/0x1a0
[ 62.274109][ T646] do_syscall_64+0xc1/0xfd0
[ 62.274308][ T646] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 62.274556][ T646]
[ 62.274663][ T646] Freed by task 646:
[ 62.274810][ T646] kasan_save_stack+0x24/0x40
[ 62.275003][ T646] kasan_save_track+0x14/0x30
[ 62.275197][ T646] __kasan_save_free_info+0x3b/0x60
[ 62.275395][ T646] __kasan_slab_free+0x3f/0x60
[ 62.275588][ T646] kfree+0x21d/0x540
[ 62.275735][ T646] device_release+0x9c/0x210
[ 62.275941][ T646] kobject_cleanup+0xfe/0x360
[ 62.276142][ T646] netdev_run_todo+0x81f/0xc60
[ 62.276334][ T646] rtnl_dellink+0x350/0xa30
[ 62.276529][ T646] rtnetlink_rcv_msg+0x709/0xc00
[ 62.276718][ T646] netlink_rcv_skb+0x121/0x340
[ 62.276907][ T646] netlink_unicast+0x4aa/0x780
[ 62.277098][ T646] netlink_sendmsg+0x714/0xbd0
[ 62.277294][ T646] ____sys_sendmsg+0x3dd/0x890
[ 62.277488][ T646] ___sys_sendmsg+0xed/0x170
[ 62.277681][ T646] __sys_sendmsg+0x10b/0x1a0
[ 62.277877][ T646] do_syscall_64+0xc1/0xfd0
[ 62.278069][ T646] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 62.278308][ T646]
[ 62.278408][ T646] The buggy address belongs to the object at ffff88800af3c000
[ 62.278408][ T646] which belongs to the cache kmalloc-4k of size 4096
[ 62.278879][ T646] The buggy address is located 1708 bytes inside of
[ 62.278879][ T646] freed 4096-byte region [ffff88800af3c000, ffff88800af3d000)
[ 62.279354][ T646]
[ 62.279453][ T646] The buggy address belongs to the physical page:
[ 62.279695][ T646] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xaf38
[ 62.280043][ T646] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 62.280335][ T646] flags: 0x80000000000040(head|node=0|zone=1)
[ 62.280585][ T646] page_type: f5(slab)
[ 62.280747][ T646] raw: 0080000000000040 ffff888001043700 ffffea0000208210 ffffea00001d9410
[ 62.281097][ T646] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 62.281443][ T646] head: 0080000000000040 ffff888001043700 ffffea0000208210 ffffea00001d9410
[ 62.281790][ T646] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 62.282134][ T646] head: 0080000000000003 ffffea00002bce01 00000000ffffffff 00000000ffffffff
[ 62.282473][ T646] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 62.282811][ T646] page dumped because: kasan: bad access detected
[ 62.283050][ T646]
[ 62.283145][ T646] Memory state around the buggy address:
[ 62.283341][ T646] ffff88800af3c580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.283639][ T646] ffff88800af3c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.283921][ T646] >ffff88800af3c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.284205][ T646] ^
[ 62.284393][ T646] ffff88800af3c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.284673][ T646] ffff88800af3c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 62.284957][ T646] ==================================================================
[ 62.285704][ T646] Disabling lock debugging due to kernel taint
[ 62.286019][ T646] ------------[ cut here ]------------
[ 62.286208][ T646] refcount_t: underflow; use-after-free.
[ 62.286424][ T646] WARNING: CPU: 0 PID: 646 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 62.286782][ T646] Modules linked in: act_gact cls_flower sch_ingress vrf veth
[ 62.287090][ T646] CPU: 0 UID: 0 PID: 646 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 62.287478][ T646] Tainted: [B]=BAD_PAGE
[ 62.287628][ T646] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 62.287876][ T646] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 62.288128][ T646] 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 65 a1 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
[ 62.288805][ T646] RSP: 0018:ffffc900010571f0 EFLAGS: 00010286
[ 62.289050][ T646] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 62.289345][ T646] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 62.289628][ T646] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff43fe134
[ 62.289922][ T646] R10: 0000000000000003 R11: ffffc90001056d80 R12: 0000000000000001
[ 62.290217][ T646] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 62.290515][ T646] FS: 00007ff2a0078800(0000) GS:ffff88808d1f2000(0000) knlGS:0000000000000000
[ 62.290858][ T646] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 62.291103][ T646] CR2: 00000000004e73d8 CR3: 0000000004e4d003 CR4: 0000000000772ef0
[ 62.291389][ T646] PKRU: 55555554
[ 62.291535][ T646] Call Trace:
[ 62.291681][ T646]
[ 62.291787][ T646] netdev_run_todo+0x5f0/0xc60
[ 62.291988][ T646] ? dev_ingress_queue_create+0x190/0x190
[ 62.292188][ T646] ? generic_xdp_install+0x410/0x410
[ 62.292376][ T646] ? vrf_dellink+0xff/0x150 [vrf]
[ 62.292566][ T646] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 62.292811][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.293006][ T646] rtnl_dellink+0x350/0xa30
[ 62.293197][ T646] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 62.293452][ T646] ? find_held_lock+0x2b/0x80
[ 62.293641][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.293839][ T646] ? find_held_lock+0x2b/0x80
[ 62.294027][ T646] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 62.294212][ T646] ? __lock_release+0x5d/0x170
[ 62.294399][ T646] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 62.294635][ T646] rtnetlink_rcv_msg+0x709/0xc00
[ 62.294835][ T646] ? rtnl_port_fill+0x850/0x850
[ 62.295025][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.295221][ T646] netlink_rcv_skb+0x121/0x340
[ 62.295434][ T646] ? rtnl_port_fill+0x850/0x850
[ 62.295623][ T646] ? netlink_ack+0xdd0/0xdd0
[ 62.295823][ T646] ? netlink_deliver_tap+0x13e/0x340
[ 62.296028][ T646] ? netlink_deliver_tap+0xc3/0x340
[ 62.296220][ T646] netlink_unicast+0x4aa/0x780
[ 62.296420][ T646] ? netlink_attachskb+0x810/0x810
[ 62.296610][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.296807][ T646] netlink_sendmsg+0x714/0xbd0
[ 62.297000][ T646] ? netlink_unicast+0x780/0x780
[ 62.297189][ T646] ? __import_iovec+0x230/0x3b0
[ 62.297383][ T646] ? netlink_unicast+0x780/0x780
[ 62.297571][ T646] ____sys_sendmsg+0x3dd/0x890
[ 62.297762][ T646] ? get_timestamp.constprop.0+0x380/0x380
[ 62.298016][ T646] ? __copy_msghdr+0x3c0/0x3c0
[ 62.298213][ T646] ___sys_sendmsg+0xed/0x170
[ 62.298411][ T646] ? kasan_record_aux_stack+0x8c/0xa0
[ 62.298609][ T646] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 62.298866][ T646] ? copy_msghdr_from_user+0x110/0x110
[ 62.299060][ T646] ? find_held_lock+0x2b/0x80
[ 62.299252][ T646] ? __lock_acquire+0x449/0x7e0
[ 62.299464][ T646] ? find_held_lock+0x2b/0x80
[ 62.299656][ T646] ? __virt_addr_valid+0x22a/0x450
[ 62.299859][ T646] ? __lock_release+0x5d/0x170
[ 62.300055][ T646] __sys_sendmsg+0x10b/0x1a0
[ 62.300247][ T646] ? __call_rcu_common.constprop.0+0x318/0x630
[ 62.300489][ T646] ? __sys_sendmsg_sock+0x20/0x20
[ 62.300681][ T646] ? rcu_is_watching+0x12/0xb0
[ 62.300880][ T646] do_syscall_64+0xc1/0xfd0
[ 62.301086][ T646] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 62.301326][ T646] RIP: 0033:0x7ff2a02461d7
[ 62.301528][ T646] 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
[ 62.302228][ T646] RSP: 002b:00007ffd22c51fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 62.302534][ T646] RAX: ffffffffffffffda RBX: 00007ffd22c52700 RCX: 00007ff2a02461d7
[ 62.302825][ T646] RDX: 0000000000000000 RSI: 00007ffd22c52040 RDI: 0000000000000005
[ 62.303106][ T646] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 62.303393][ T646] R10: 00007ff2a0142f60 R11: 0000000000000246 R12: 0000000000000002
[ 62.303688][ T646] R13: 00000000690dee2b R14: 0000000000499600 R15: 0000000000000000
[ 62.303988][ T646]
[ 62.304136][ T646] irq event stamp: 43201
[ 62.304383][ T646] hardirqs last enabled at (43201): [] finish_task_switch.isra.0+0x245/0x960
[ 62.304831][ T646] hardirqs last disabled at (43200): [] __schedule+0x94a/0x1b10
[ 62.305454][ T646] softirqs last enabled at (42536): [] handle_softirqs+0x352/0x610
[ 62.305902][ T646] softirqs last disabled at (42529): [] irq_exit_rcu+0xab/0x100
[ 62.306257][ T646] ---[ end trace 0000000000000000 ]---
[ 64.759293][ T290] veth0: left allmulticast mode
[ 64.759648][ T290] veth1: left allmulticast mode
[ 64.759906][ T290] veth2: left allmulticast mode
[ 64.760156][ T290] veth3: left allmulticast mode
[ 64.760419][ T290] veth4: left allmulticast mode
[ 64.760674][ T290] veth5: left allmulticast mode