[ 18.949093][ T250] ip (250) used greatest stack depth: 24688 bytes left
[ 25.272752][ T313] ip (313) used greatest stack depth: 24664 bytes left
[ 31.436275][ T355] 8021q: 802.1Q VLAN Support v1.8
[ 32.370007][ T361] gre: GRE over IPv4 demultiplexer driver
[ 32.436800][ T361] ip6_gre: GRE over IPv6 tunneling driver
[ 37.305122][ T401] ip (401) used greatest stack depth: 24456 bytes left
[ 46.120000][ T445] GACT probability NOT on
[ 74.216215][ T658] ==================================================================
[ 74.216763][ T658] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 74.217214][ T658] Read of size 1 at addr ffff888004e716ac by task ip/658
[ 74.217562][ T658]
[ 74.217718][ T658] CPU: 1 UID: 0 PID: 658 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 74.217727][ T658] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.217731][ T658] Call Trace:
[ 74.217738][ T658]
[ 74.217741][ T658] dump_stack_lvl+0x82/0xc0
[ 74.217751][ T658] print_address_description.constprop.0+0x2c/0x3a0
[ 74.217768][ T658] ? kobject_put+0xbb/0xd0
[ 74.217775][ T658] print_report+0xb4/0x270
[ 74.217779][ T658] ? kobject_put+0xbb/0xd0
[ 74.217784][ T658] ? kasan_addr_to_slab+0x21/0x70
[ 74.217790][ T658] ? kobject_put+0xbb/0xd0
[ 74.217795][ T658] kasan_report+0xca/0x100
[ 74.217801][ T658] ? kobject_put+0xbb/0xd0
[ 74.217811][ T658] kobject_put+0xbb/0xd0
[ 74.217817][ T658] netdev_run_todo+0x5f0/0xc60
[ 74.217831][ T658] ? dev_ingress_queue_create+0x190/0x190
[ 74.217837][ T658] ? generic_xdp_install+0x410/0x410
[ 74.217846][ T658] ? unregister_netdevice_many+0x20/0x20
[ 74.217855][ T658] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 74.217868][ T658] rtnl_dellink+0x350/0xa30
[ 74.217876][ T658] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 74.217915][ T658] ? find_held_lock+0x2b/0x80
[ 74.217929][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.217939][ T658] ? find_held_lock+0x2b/0x80
[ 74.217945][ T658] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 74.217949][ T658] ? __lock_release+0x5d/0x170
[ 74.217956][ T658] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 74.217962][ T658] rtnetlink_rcv_msg+0x709/0xc00
[ 74.217968][ T658] ? rtnl_port_fill+0x850/0x850
[ 74.217972][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.217985][ T658] netlink_rcv_skb+0x121/0x340
[ 74.217997][ T658] ? rtnl_port_fill+0x850/0x850
[ 74.218004][ T658] ? netlink_ack+0xdd0/0xdd0
[ 74.218017][ T658] ? netlink_deliver_tap+0x13e/0x340
[ 74.218022][ T658] ? netlink_deliver_tap+0xc3/0x340
[ 74.218029][ T658] netlink_unicast+0x4aa/0x780
[ 74.218037][ T658] ? netlink_attachskb+0x810/0x810
[ 74.218045][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.218055][ T658] netlink_sendmsg+0x714/0xbd0
[ 74.218066][ T658] ? netlink_unicast+0x780/0x780
[ 74.218071][ T658] ? __import_iovec+0x230/0x3b0
[ 74.218085][ T658] ? netlink_unicast+0x780/0x780
[ 74.218092][ T658] ____sys_sendmsg+0x3dd/0x890
[ 74.218107][ T658] ? get_timestamp.constprop.0+0x380/0x380
[ 74.218112][ T658] ? __copy_msghdr+0x3c0/0x3c0
[ 74.218130][ T658] ___sys_sendmsg+0xed/0x170
[ 74.218135][ T658] ? kasan_record_aux_stack+0x8c/0xa0
[ 74.218140][ T658] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 74.218154][ T658] ? copy_msghdr_from_user+0x110/0x110
[ 74.218162][ T658] ? find_held_lock+0x2b/0x80
[ 74.218170][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.218181][ T658] ? find_held_lock+0x2b/0x80
[ 74.218187][ T658] ? __virt_addr_valid+0x22a/0x450
[ 74.218200][ T658] ? __lock_release+0x5d/0x170
[ 74.218211][ T658] __sys_sendmsg+0x10b/0x1a0
[ 74.218216][ T658] ? __call_rcu_common.constprop.0+0x318/0x630
[ 74.218222][ T658] ? __sys_sendmsg_sock+0x20/0x20
[ 74.218237][ T658] ? rcu_is_watching+0x12/0xb0
[ 74.218245][ T658] do_syscall_64+0xc1/0xfd0
[ 74.218256][ T658] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 74.218270][ T658] RIP: 0033:0x7f5e109951d7
[ 74.218278][ T658] 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
[ 74.218283][ T658] RSP: 002b:00007ffeb9be7378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 74.218295][ T658] RAX: ffffffffffffffda RBX: 00007ffeb9be7aa0 RCX: 00007f5e109951d7
[ 74.218299][ T658] RDX: 0000000000000000 RSI: 00007ffeb9be73e0 RDI: 0000000000000005
[ 74.218302][ T658] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 74.218305][ T658] R10: 00007f5e10891f60 R11: 0000000000000246 R12: 0000000000000002
[ 74.218309][ T658] R13: 00000000690dece7 R14: 0000000000499600 R15: 0000000000000000
[ 74.218320][ T658]
[ 74.218322][ T658]
[ 74.237441][ T658] Allocated by task 398:
[ 74.237580][ T658] kasan_save_stack+0x24/0x40
[ 74.237763][ T658] kasan_save_track+0x14/0x30
[ 74.237950][ T658] __kasan_kmalloc+0x7b/0x90
[ 74.238198][ T658] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 74.238370][ T658] alloc_netdev_mqs+0x7d/0x1370
[ 74.238556][ T658] rtnl_create_link+0xa9e/0xe20
[ 74.238841][ T658] rtnl_newlink_create+0x203/0x770
[ 74.239026][ T658] __rtnl_newlink+0x231/0xa30
[ 74.239193][ T658] rtnl_newlink+0x693/0xa60
[ 74.239357][ T658] rtnetlink_rcv_msg+0x709/0xc00
[ 74.239624][ T658] netlink_rcv_skb+0x121/0x340
[ 74.239806][ T658] netlink_unicast+0x4aa/0x780
[ 74.240003][ T658] netlink_sendmsg+0x714/0xbd0
[ 74.240168][ T658] ____sys_sendmsg+0x3dd/0x890
[ 74.240451][ T658] ___sys_sendmsg+0xed/0x170
[ 74.240629][ T658] __sys_sendmsg+0x10b/0x1a0
[ 74.240802][ T658] do_syscall_64+0xc1/0xfd0
[ 74.240991][ T658] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 74.241308][ T658]
[ 74.241430][ T658] Freed by task 658:
[ 74.241554][ T658] kasan_save_stack+0x24/0x40
[ 74.241734][ T658] kasan_save_track+0x14/0x30
[ 74.242017][ T658] __kasan_save_free_info+0x3b/0x60
[ 74.242185][ T658] __kasan_slab_free+0x3f/0x60
[ 74.242395][ T658] kfree+0x21d/0x540
[ 74.242548][ T658] device_release+0x9c/0x210
[ 74.242828][ T658] kobject_cleanup+0xfe/0x360
[ 74.243015][ T658] netdev_run_todo+0x81f/0xc60
[ 74.243183][ T658] rtnl_dellink+0x350/0xa30
[ 74.243357][ T658] rtnetlink_rcv_msg+0x709/0xc00
[ 74.243623][ T658] netlink_rcv_skb+0x121/0x340
[ 74.243799][ T658] netlink_unicast+0x4aa/0x780
[ 74.243971][ T658] netlink_sendmsg+0x714/0xbd0
[ 74.244138][ T658] ____sys_sendmsg+0x3dd/0x890
[ 74.244405][ T658] ___sys_sendmsg+0xed/0x170
[ 74.244574][ T658] __sys_sendmsg+0x10b/0x1a0
[ 74.244756][ T658] do_syscall_64+0xc1/0xfd0
[ 74.244930][ T658] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 74.245247][ T658]
[ 74.245336][ T658] The buggy address belongs to the object at ffff888004e71000
[ 74.245336][ T658] which belongs to the cache kmalloc-4k of size 4096
[ 74.245755][ T658] The buggy address is located 1708 bytes inside of
[ 74.245755][ T658] freed 4096-byte region [ffff888004e71000, ffff888004e72000)
[ 74.246276][ T658]
[ 74.246365][ T658] The buggy address belongs to the physical page:
[ 74.246574][ T658] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4e70
[ 74.247002][ T658] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 74.247265][ T658] flags: 0x80000000000040(head|node=0|zone=1)
[ 74.247603][ T658] page_type: f5(slab)
[ 74.247740][ T658] raw: 0080000000000040 ffff888001043700 ffffea000015f810 ffffea00002f3610
[ 74.248056][ T658] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 74.248449][ T658] head: 0080000000000040 ffff888001043700 ffffea000015f810 ffffea00002f3610
[ 74.248750][ T658] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 74.249071][ T658] head: 0080000000000003 ffffea0000139c01 00000000ffffffff 00000000ffffffff
[ 74.249467][ T658] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 74.249778][ T658] page dumped because: kasan: bad access detected
[ 74.250092][ T658]
[ 74.250176][ T658] Memory state around the buggy address:
[ 74.250343][ T658] ffff888004e71580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.250584][ T658] ffff888004e71600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.250926][ T658] >ffff888004e71680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.251175][ T658] ^
[ 74.251352][ T658] ffff888004e71700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.251691][ T658] ffff888004e71780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 74.251927][ T658] ==================================================================
[ 74.252463][ T658] Disabling lock debugging due to kernel taint
[ 74.252714][ T658] ------------[ cut here ]------------
[ 74.253029][ T658] refcount_t: underflow; use-after-free.
[ 74.253295][ T658] WARNING: CPU: 1 PID: 658 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 74.253890][ T658] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth
[ 74.254319][ T658] CPU: 1 UID: 0 PID: 658 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 74.254755][ T658] Tainted: [B]=BAD_PAGE
[ 74.254902][ T658] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.255132][ T658] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 74.255380][ T658] 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 05 ad 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
[ 74.256229][ T658] RSP: 0018:ffffc90000f871f0 EFLAGS: 00010286
[ 74.256455][ T658] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 74.256789][ T658] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 74.257063][ T658] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff5b3e134
[ 74.257313][ T658] R10: 0000000000000003 R11: ffffc90000f86d80 R12: 0000000000000001
[ 74.257648][ T658] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 74.257951][ T658] FS: 00007f5e107c7800(0000) GS:ffff888081872000(0000) knlGS:0000000000000000
[ 74.258261][ T658] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 74.258565][ T658] CR2: 00007fe565320eb0 CR3: 000000000bf45004 CR4: 0000000000772ef0
[ 74.258834][ T658] PKRU: 55555554
[ 74.258987][ T658] Call Trace:
[ 74.259114][ T658]
[ 74.259297][ T658] netdev_run_todo+0x5f0/0xc60
[ 74.259462][ T658] ? dev_ingress_queue_create+0x190/0x190
[ 74.259625][ T658] ? generic_xdp_install+0x410/0x410
[ 74.259794][ T658] ? unregister_netdevice_many+0x20/0x20
[ 74.260067][ T658] ? net_generic+0xbb/0x1f0 [ip6_gre]
[ 74.260236][ T658] rtnl_dellink+0x350/0xa30
[ 74.260399][ T658] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 74.260607][ T658] ? find_held_lock+0x2b/0x80
[ 74.260906][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.261098][ T658] ? find_held_lock+0x2b/0x80
[ 74.261278][ T658] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 74.261487][ T658] ? __lock_release+0x5d/0x170
[ 74.261776][ T658] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 74.262015][ T658] rtnetlink_rcv_msg+0x709/0xc00
[ 74.262196][ T658] ? rtnl_port_fill+0x850/0x850
[ 74.262377][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.262650][ T658] netlink_rcv_skb+0x121/0x340
[ 74.262842][ T658] ? rtnl_port_fill+0x850/0x850
[ 74.263033][ T658] ? netlink_ack+0xdd0/0xdd0
[ 74.263220][ T658] ? netlink_deliver_tap+0x13e/0x340
[ 74.263475][ T658] ? netlink_deliver_tap+0xc3/0x340
[ 74.263638][ T658] netlink_unicast+0x4aa/0x780
[ 74.263822][ T658] ? netlink_attachskb+0x810/0x810
[ 74.264007][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.264268][ T658] netlink_sendmsg+0x714/0xbd0
[ 74.264437][ T658] ? netlink_unicast+0x780/0x780
[ 74.264604][ T658] ? __import_iovec+0x230/0x3b0
[ 74.264783][ T658] ? netlink_unicast+0x780/0x780
[ 74.265048][ T658] ____sys_sendmsg+0x3dd/0x890
[ 74.265210][ T658] ? get_timestamp.constprop.0+0x380/0x380
[ 74.265404][ T658] ? __copy_msghdr+0x3c0/0x3c0
[ 74.265571][ T658] ___sys_sendmsg+0xed/0x170
[ 74.265843][ T658] ? kasan_record_aux_stack+0x8c/0xa0
[ 74.266013][ T658] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 74.266225][ T658] ? copy_msghdr_from_user+0x110/0x110
[ 74.266480][ T658] ? find_held_lock+0x2b/0x80
[ 74.266640][ T658] ? __lock_acquire+0x449/0x7e0
[ 74.266817][ T658] ? find_held_lock+0x2b/0x80
[ 74.267005][ T658] ? __virt_addr_valid+0x22a/0x450
[ 74.267270][ T658] ? __lock_release+0x5d/0x170
[ 74.267440][ T658] __sys_sendmsg+0x10b/0x1a0
[ 74.267613][ T658] ? __call_rcu_common.constprop.0+0x318/0x630
[ 74.267837][ T658] ? __sys_sendmsg_sock+0x20/0x20
[ 74.268148][ T658] ? rcu_is_watching+0x12/0xb0
[ 74.268319][ T658] do_syscall_64+0xc1/0xfd0
[ 74.268494][ T658] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 74.268732][ T658] RIP: 0033:0x7f5e109951d7
[ 74.269040][ T658] 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
[ 74.269784][ T658] RSP: 002b:00007ffeb9be7378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 74.270055][ T658] RAX: ffffffffffffffda RBX: 00007ffeb9be7aa0 RCX: 00007f5e109951d7
[ 74.270306][ T658] RDX: 0000000000000000 RSI: 00007ffeb9be73e0 RDI: 0000000000000005
[ 74.270665][ T658] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 74.270922][ T658] R10: 00007f5e10891f60 R11: 0000000000000246 R12: 0000000000000002
[ 74.271186][ T658] R13: 00000000690dece7 R14: 0000000000499600 R15: 0000000000000000
[ 74.271564][ T658]
[ 74.271700][ T658] irq event stamp: 51227
[ 74.271838][ T658] hardirqs last enabled at (51227): [] finish_task_switch.isra.0+0x245/0x960
[ 74.272301][ T658] hardirqs last disabled at (51226): [] __schedule+0x94a/0x1b10
[ 74.272634][ T658] softirqs last enabled at (51106): [] handle_softirqs+0x352/0x610
[ 74.273061][ T658] softirqs last disabled at (51097): [] irq_exit_rcu+0xab/0x100
[ 74.273377][ T658] ---[ end trace 0000000000000000 ]---
[ 74.284582][ T658] ip (658) used greatest stack depth: 24232 bytes left