[ 20.046261][ T309] 8021q: 802.1Q VLAN Support v1.8
[ 21.190700][ T320] gre: GRE over IPv4 demultiplexer driver
[ 21.207795][ T320] ip_gre: GRE over IPv4 tunneling driver
[ 27.316447][ T378] GACT probability NOT on
[ 73.041215][ T534] ==================================================================
[ 73.041531][ T534] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 73.041825][ T534] Read of size 1 at addr ffff8880025a46ac by task ip/534
[ 73.042045][ T534]
[ 73.042156][ T534] CPU: 1 UID: 0 PID: 534 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 73.042162][ T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.042170][ T534] Call Trace:
[ 73.042174][ T534]
[ 73.042176][ T534] dump_stack_lvl+0x82/0xc0
[ 73.042184][ T534] print_address_description.constprop.0+0x2c/0x3a0
[ 73.042203][ T534] ? kobject_put+0xbb/0xd0
[ 73.042207][ T534] print_report+0xb4/0x270
[ 73.042210][ T534] ? kobject_put+0xbb/0xd0
[ 73.042213][ T534] ? kasan_addr_to_slab+0x21/0x70
[ 73.042217][ T534] ? kobject_put+0xbb/0xd0
[ 73.042220][ T534] kasan_report+0xca/0x100
[ 73.042224][ T534] ? kobject_put+0xbb/0xd0
[ 73.042229][ T534] kobject_put+0xbb/0xd0
[ 73.042233][ T534] netdev_run_todo+0x5f0/0xc60
[ 73.042240][ T534] ? dev_ingress_queue_create+0x190/0x190
[ 73.042243][ T534] ? generic_xdp_install+0x410/0x410
[ 73.042247][ T534] ? vrf_dellink+0xff/0x150 [vrf]
[ 73.042255][ T534] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 73.042262][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.042274][ T534] rtnl_dellink+0x350/0xa30
[ 73.042280][ T534] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 73.042299][ T534] ? find_held_lock+0x2b/0x80
[ 73.042303][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.042309][ T534] ? find_held_lock+0x2b/0x80
[ 73.042313][ T534] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 73.042316][ T534] ? __lock_release+0x5d/0x170
[ 73.042320][ T534] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 73.042324][ T534] rtnetlink_rcv_msg+0x709/0xc00
[ 73.042327][ T534] ? rtnl_port_fill+0x850/0x850
[ 73.042330][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.042337][ T534] netlink_rcv_skb+0x121/0x340
[ 73.042344][ T534] ? rtnl_port_fill+0x850/0x850
[ 73.042347][ T534] ? netlink_ack+0xdd0/0xdd0
[ 73.042354][ T534] ? netlink_deliver_tap+0x13e/0x340
[ 73.042356][ T534] ? netlink_deliver_tap+0xc3/0x340
[ 73.042360][ T534] netlink_unicast+0x4aa/0x780
[ 73.042364][ T534] ? netlink_attachskb+0x810/0x810
[ 73.042369][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.042375][ T534] netlink_sendmsg+0x714/0xbd0
[ 73.042379][ T534] ? netlink_unicast+0x780/0x780
[ 73.042383][ T534] ? __import_iovec+0x230/0x3b0
[ 73.042398][ T534] ? netlink_unicast+0x780/0x780
[ 73.042402][ T534] ____sys_sendmsg+0x3dd/0x890
[ 73.042407][ T534] ? get_timestamp.constprop.0+0x380/0x380
[ 73.042410][ T534] ? __copy_msghdr+0x3c0/0x3c0
[ 73.042417][ T534] ___sys_sendmsg+0xed/0x170
[ 73.042420][ T534] ? kasan_record_aux_stack+0x8c/0xa0
[ 73.042423][ T534] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 73.042436][ T534] ? copy_msghdr_from_user+0x110/0x110
[ 73.042441][ T534] ? find_held_lock+0x2b/0x80
[ 73.042445][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.042451][ T534] ? find_held_lock+0x2b/0x80
[ 73.042454][ T534] ? __virt_addr_valid+0x22a/0x450
[ 73.042465][ T534] ? __lock_release+0x5d/0x170
[ 73.042472][ T534] __sys_sendmsg+0x10b/0x1a0
[ 73.042475][ T534] ? __call_rcu_common.constprop.0+0x318/0x630
[ 73.042479][ T534] ? __sys_sendmsg_sock+0x20/0x20
[ 73.042486][ T534] ? rcu_is_watching+0x12/0xb0
[ 73.042490][ T534] do_syscall_64+0xc1/0xfd0
[ 73.042497][ T534] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 73.042503][ T534] RIP: 0033:0x7f142876f1d7
[ 73.042508][ T534] 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
[ 73.042511][ T534] RSP: 002b:00007ffff5553ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 73.042517][ T534] RAX: ffffffffffffffda RBX: 00007ffff55541e0 RCX: 00007f142876f1d7
[ 73.042519][ T534] RDX: 0000000000000000 RSI: 00007ffff5553b20 RDI: 0000000000000005
[ 73.042521][ T534] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 73.042523][ T534] R10: 00007f142866bf60 R11: 0000000000000246 R12: 0000000000000002
[ 73.042525][ T534] R13: 00000000690df70e R14: 0000000000499600 R15: 0000000000000000
[ 73.042531][ T534]
[ 73.042533][ T534]
[ 73.057790][ T534] Allocated by task 380:
[ 73.057940][ T534] kasan_save_stack+0x24/0x40
[ 73.058242][ T534] kasan_save_track+0x14/0x30
[ 73.058426][ T534] __kasan_kmalloc+0x7b/0x90
[ 73.058604][ T534] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 73.058789][ T534] alloc_netdev_mqs+0x7d/0x1370
[ 73.059070][ T534] rtnl_create_link+0xa9e/0xe20
[ 73.059266][ T534] rtnl_newlink_create+0x203/0x770
[ 73.059455][ T534] __rtnl_newlink+0x231/0xa30
[ 73.059640][ T534] rtnl_newlink+0x693/0xa60
[ 73.059916][ T534] rtnetlink_rcv_msg+0x709/0xc00
[ 73.060104][ T534] netlink_rcv_skb+0x121/0x340
[ 73.060294][ T534] netlink_unicast+0x4aa/0x780
[ 73.060479][ T534] netlink_sendmsg+0x714/0xbd0
[ 73.060756][ T534] ____sys_sendmsg+0x3dd/0x890
[ 73.060940][ T534] ___sys_sendmsg+0xed/0x170
[ 73.061143][ T534] __sys_sendmsg+0x10b/0x1a0
[ 73.061326][ T534] do_syscall_64+0xc1/0xfd0
[ 73.061614][ T534] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 73.061843][ T534]
[ 73.061935][ T534] Freed by task 534:
[ 73.062072][ T534] kasan_save_stack+0x24/0x40
[ 73.062268][ T534] kasan_save_track+0x14/0x30
[ 73.062543][ T534] __kasan_save_free_info+0x3b/0x60
[ 73.062733][ T534] __kasan_slab_free+0x3f/0x60
[ 73.062909][ T534] kfree+0x21d/0x540
[ 73.063045][ T534] device_release+0x9c/0x210
[ 73.063340][ T534] kobject_cleanup+0xfe/0x360
[ 73.063525][ T534] netdev_run_todo+0x81f/0xc60
[ 73.063705][ T534] rtnl_dellink+0x350/0xa30
[ 73.063882][ T534] rtnetlink_rcv_msg+0x709/0xc00
[ 73.064181][ T534] netlink_rcv_skb+0x121/0x340
[ 73.064360][ T534] netlink_unicast+0x4aa/0x780
[ 73.064551][ T534] netlink_sendmsg+0x714/0xbd0
[ 73.064734][ T534] ____sys_sendmsg+0x3dd/0x890
[ 73.065013][ T534] ___sys_sendmsg+0xed/0x170
[ 73.065209][ T534] __sys_sendmsg+0x10b/0x1a0
[ 73.065390][ T534] do_syscall_64+0xc1/0xfd0
[ 73.065568][ T534] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 73.065891][ T534]
[ 73.065985][ T534] The buggy address belongs to the object at ffff8880025a4000
[ 73.065985][ T534] which belongs to the cache kmalloc-4k of size 4096
[ 73.066444][ T534] The buggy address is located 1708 bytes inside of
[ 73.066444][ T534] freed 4096-byte region [ffff8880025a4000, ffff8880025a5000)
[ 73.066969][ T534]
[ 73.067062][ T534] The buggy address belongs to the physical page:
[ 73.067316][ T534] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x25a0
[ 73.067757][ T534] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 73.068035][ T534] flags: 0x80000000000040(head|node=0|zone=1)
[ 73.068384][ T534] page_type: f5(slab)
[ 73.068525][ T534] raw: 0080000000000040 ffff888001043700 ffffea000030cc10 ffffea0000150810
[ 73.068846][ T534] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 73.069293][ T534] head: 0080000000000040 ffff888001043700 ffffea000030cc10 ffffea0000150810
[ 73.069613][ T534] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 73.070034][ T534] head: 0080000000000003 ffffea0000096801 00000000ffffffff 00000000ffffffff
[ 73.070364][ T534] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 73.070694][ T534] page dumped because: kasan: bad access detected
[ 73.071012][ T534]
[ 73.071105][ T534] Memory state around the buggy address:
[ 73.071289][ T534] ffff8880025a4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.071553][ T534] ffff8880025a4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.071911][ T534] >ffff8880025a4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.072188][ T534] ^
[ 73.072360][ T534] ffff8880025a4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.072613][ T534] ffff8880025a4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 73.072869][ T534] ==================================================================
[ 73.074002][ T534] Disabling lock debugging due to kernel taint
[ 73.074268][ T534] ------------[ cut here ]------------
[ 73.074447][ T534] refcount_t: underflow; use-after-free.
[ 73.074653][ T534] WARNING: CPU: 1 PID: 534 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 73.074957][ T534] Modules linked in: act_gact cls_flower sch_ingress ip_gre gre 8021q vrf veth
[ 73.075312][ T534] CPU: 1 UID: 0 PID: 534 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 73.075684][ T534] Tainted: [B]=BAD_PAGE
[ 73.075818][ T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.076037][ T534] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 73.076387][ T534] 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 45 a9 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
[ 73.077142][ T534] RSP: 0018:ffffc90000dcf1f0 EFLAGS: 00010286
[ 73.078014][ T534] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 73.078300][ T534] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 73.078641][ T534] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff53be134
[ 73.078907][ T534] R10: 0000000000000003 R11: ffffc90000dced80 R12: 0000000000000001
[ 73.079182][ T534] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 73.079517][ T534] FS: 00007f14285a1800(0000) GS:ffff88808b072000(0000) knlGS:0000000000000000
[ 73.079824][ T534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 73.080054][ T534] CR2: 00000000004e7438 CR3: 000000000a6e5001 CR4: 0000000000772ef0
[ 73.080334][ T534] PKRU: 55555554
[ 73.080537][ T534] Call Trace:
[ 73.080672][ T534]
[ 73.080761][ T534] netdev_run_todo+0x5f0/0xc60
[ 73.080938][ T534] ? dev_ingress_queue_create+0x190/0x190
[ 73.081131][ T534] ? generic_xdp_install+0x410/0x410
[ 73.081312][ T534] ? vrf_dellink+0xff/0x150 [vrf]
[ 73.081564][ T534] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 73.081782][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.081960][ T534] rtnl_dellink+0x350/0xa30
[ 73.082146][ T534] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 73.082446][ T534] ? find_held_lock+0x2b/0x80
[ 73.082774][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.082951][ T534] ? find_held_lock+0x2b/0x80
[ 73.083148][ T534] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 73.083321][ T534] ? __lock_release+0x5d/0x170
[ 73.083568][ T534] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 73.083785][ T534] rtnetlink_rcv_msg+0x709/0xc00
[ 73.083956][ T534] ? rtnl_port_fill+0x850/0x850
[ 73.084145][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.084320][ T534] netlink_rcv_skb+0x121/0x340
[ 73.084566][ T534] ? rtnl_port_fill+0x850/0x850
[ 73.084750][ T534] ? netlink_ack+0xdd0/0xdd0
[ 73.084926][ T534] ? netlink_deliver_tap+0x13e/0x340
[ 73.085106][ T534] ? netlink_deliver_tap+0xc3/0x340
[ 73.085290][ T534] netlink_unicast+0x4aa/0x780
[ 73.085537][ T534] ? netlink_attachskb+0x810/0x810
[ 73.085714][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.085888][ T534] netlink_sendmsg+0x714/0xbd0
[ 73.086071][ T534] ? netlink_unicast+0x780/0x780
[ 73.086265][ T534] ? __import_iovec+0x230/0x3b0
[ 73.086512][ T534] ? netlink_unicast+0x780/0x780
[ 73.086690][ T534] ____sys_sendmsg+0x3dd/0x890
[ 73.086861][ T534] ? get_timestamp.constprop.0+0x380/0x380
[ 73.087075][ T534] ? __copy_msghdr+0x3c0/0x3c0
[ 73.087276][ T534] ___sys_sendmsg+0xed/0x170
[ 73.087521][ T534] ? kasan_record_aux_stack+0x8c/0xa0
[ 73.087712][ T534] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 73.087927][ T534] ? copy_msghdr_from_user+0x110/0x110
[ 73.088111][ T534] ? find_held_lock+0x2b/0x80
[ 73.088296][ T534] ? __lock_acquire+0x449/0x7e0
[ 73.088541][ T534] ? find_held_lock+0x2b/0x80
[ 73.088717][ T534] ? __virt_addr_valid+0x22a/0x450
[ 73.088889][ T534] ? __lock_release+0x5d/0x170
[ 73.089074][ T534] __sys_sendmsg+0x10b/0x1a0
[ 73.089266][ T534] ? __call_rcu_common.constprop.0+0x318/0x630
[ 73.089647][ T534] ? __sys_sendmsg_sock+0x20/0x20
[ 73.089822][ T534] ? rcu_is_watching+0x12/0xb0
[ 73.089993][ T534] do_syscall_64+0xc1/0xfd0
[ 73.090182][ T534] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 73.090465][ T534] RIP: 0033:0x7f142876f1d7
[ 73.090651][ T534] 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
[ 73.091461][ T534] RSP: 002b:00007ffff5553ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 73.091733][ T534] RAX: ffffffffffffffda RBX: 00007ffff55541e0 RCX: 00007f142876f1d7
[ 73.092001][ T534] RDX: 0000000000000000 RSI: 00007ffff5553b20 RDI: 0000000000000005
[ 73.092271][ T534] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 73.092703][ T534] R10: 00007f142866bf60 R11: 0000000000000246 R12: 0000000000000002
[ 73.092961][ T534] R13: 00000000690df70e R14: 0000000000499600 R15: 0000000000000000
[ 73.093236][ T534]
[ 73.093445][ T534] irq event stamp: 41351
[ 73.093579][ T534] hardirqs last enabled at (41351): [] finish_task_switch.isra.0+0x245/0x960
[ 73.093925][ T534] hardirqs last disabled at (41350): [] __schedule+0x94a/0x1b10
[ 73.094256][ T534] softirqs last enabled at (41070): [] handle_softirqs+0x352/0x610
[ 73.094721][ T534] softirqs last disabled at (41065): [] irq_exit_rcu+0xab/0x100
[ 73.095034][ T534] ---[ end trace 0000000000000000 ]---