[ 18.376747][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 22.928276][ T378] GACT probability NOT on [ 24.844293][ T413] br10: port 1(veth1.10) entered blocking state [ 24.845160][ T413] br10: port 1(veth1.10) entered disabled state [ 24.845723][ T413] veth1.10: entered allmulticast mode [ 24.846042][ T413] veth1: entered allmulticast mode [ 24.849657][ T413] veth1.10: entered promiscuous mode [ 24.850389][ T413] veth1: entered promiscuous mode [ 25.500050][ T430] br11: port 1(veth1.11) entered blocking state [ 25.500554][ T430] br11: port 1(veth1.11) entered disabled state [ 25.501664][ T430] veth1.11: entered allmulticast mode [ 25.505277][ T430] veth1.11: entered promiscuous mode [ 26.727216][ T460] br10: port 2(veth2.10) entered blocking state [ 26.727727][ T460] br10: port 2(veth2.10) entered disabled state [ 26.728188][ T460] veth2.10: entered allmulticast mode [ 26.728496][ T460] veth2: entered allmulticast mode [ 26.731972][ T460] veth2.10: entered promiscuous mode [ 26.732325][ T460] veth2: entered promiscuous mode [ 27.074723][ T470] ip (470) used greatest stack depth: 24168 bytes left [ 27.353206][ T477] br11: port 2(veth2.11) entered blocking state [ 27.353680][ T477] br11: port 2(veth2.11) entered disabled state [ 27.354172][ T477] veth2.11: entered allmulticast mode [ 27.357729][ T477] veth2.11: entered promiscuous mode [ 27.913494][ T489] br10: port 2(veth2.10) entered blocking state [ 27.914102][ T489] br10: port 2(veth2.10) entered forwarding state [ 27.915173][ T489] br10: port 1(veth1.10) entered blocking state [ 27.915607][ T489] br10: port 1(veth1.10) entered forwarding state [ 28.095867][ T494] br11: port 2(veth2.11) entered blocking state [ 28.096352][ T494] br11: port 2(veth2.11) entered forwarding state [ 28.097085][ T494] br11: port 1(veth1.11) entered blocking state [ 28.097510][ T494] br11: port 1(veth1.11) entered forwarding state [ 112.341329][ T840] br11: port 2(veth2.11) entered disabled state [ 112.342411][ T840] br11: port 1(veth1.11) entered disabled state [ 112.486105][ T842] br10: port 2(veth2.10) entered disabled state [ 112.486891][ T842] br10: port 1(veth1.10) entered disabled state [ 112.757850][ T846] veth2.11: left allmulticast mode [ 112.758227][ T846] veth2.11: left promiscuous mode [ 112.759367][ T846] br11: port 2(veth2.11) entered disabled state [ 112.915987][ T848] ================================================================== [ 112.916297][ T848] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 112.916579][ T848] Read of size 1 at addr ffff8880051116ac by task ip/848 [ 112.916812][ T848] [ 112.916909][ T848] CPU: 3 UID: 0 PID: 848 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 112.916915][ T848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 112.916918][ T848] Call Trace: [ 112.916920][ T848] [ 112.916922][ T848] dump_stack_lvl+0x82/0xc0 [ 112.916930][ T848] print_address_description.constprop.0+0x2c/0x3a0 [ 112.916937][ T848] ? kobject_put+0xbb/0xd0 [ 112.916941][ T848] print_report+0xb4/0x270 [ 112.916944][ T848] ? kobject_put+0xbb/0xd0 [ 112.916948][ T848] ? kasan_addr_to_slab+0x21/0x70 [ 112.916951][ T848] ? kobject_put+0xbb/0xd0 [ 112.916954][ T848] kasan_report+0xca/0x100 [ 112.916958][ T848] ? kobject_put+0xbb/0xd0 [ 112.916963][ T848] kobject_put+0xbb/0xd0 [ 112.916967][ T848] netdev_run_todo+0x5f0/0xc60 [ 112.916973][ T848] ? dev_ingress_queue_create+0x190/0x190 [ 112.916975][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 112.916981][ T848] ? generic_xdp_install+0x410/0x410 [ 112.916985][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 112.916989][ T848] rtnl_dellink+0x350/0xa30 [ 112.916995][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 112.917013][ T848] ? find_held_lock+0x2b/0x80 [ 112.917021][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.917028][ T848] ? find_held_lock+0x2b/0x80 [ 112.917032][ T848] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 112.917035][ T848] ? __lock_release+0x5d/0x170 [ 112.917039][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 112.917042][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 112.917046][ T848] ? rtnl_port_fill+0x850/0x850 [ 112.917049][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.917056][ T848] netlink_rcv_skb+0x121/0x340 [ 112.917062][ T848] ? rtnl_port_fill+0x850/0x850 [ 112.917065][ T848] ? netlink_ack+0xdd0/0xdd0 [ 112.917072][ T848] ? netlink_deliver_tap+0x13e/0x340 [ 112.917074][ T848] ? netlink_deliver_tap+0xc3/0x340 [ 112.917078][ T848] netlink_unicast+0x4aa/0x780 [ 112.917082][ T848] ? netlink_attachskb+0x810/0x810 [ 112.917086][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.917092][ T848] netlink_sendmsg+0x714/0xbd0 [ 112.917096][ T848] ? netlink_unicast+0x780/0x780 [ 112.917099][ T848] ? __import_iovec+0x230/0x3b0 [ 112.917107][ T848] ? netlink_unicast+0x780/0x780 [ 112.917110][ T848] ____sys_sendmsg+0x3dd/0x890 [ 112.917117][ T848] ? get_timestamp.constprop.0+0x380/0x380 [ 112.917120][ T848] ? __copy_msghdr+0x3c0/0x3c0 [ 112.917128][ T848] ___sys_sendmsg+0xed/0x170 [ 112.917131][ T848] ? kasan_record_aux_stack+0x8c/0xa0 [ 112.917134][ T848] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 112.917140][ T848] ? copy_msghdr_from_user+0x110/0x110 [ 112.917145][ T848] ? find_held_lock+0x2b/0x80 [ 112.917149][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.917155][ T848] ? find_held_lock+0x2b/0x80 [ 112.917159][ T848] ? __virt_addr_valid+0x22a/0x450 [ 112.917165][ T848] ? __lock_release+0x5d/0x170 [ 112.917171][ T848] __sys_sendmsg+0x10b/0x1a0 [ 112.917174][ T848] ? __call_rcu_common.constprop.0+0x318/0x630 [ 112.917178][ T848] ? __sys_sendmsg_sock+0x20/0x20 [ 112.917185][ T848] ? rcu_is_watching+0x12/0xb0 [ 112.917189][ T848] do_syscall_64+0xc1/0xfd0 [ 112.917195][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 112.917200][ T848] RIP: 0033:0x7fe327ed01d7 [ 112.917205][ T848] 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 [ 112.917208][ T848] RSP: 002b:00007ffeaaec1308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 112.917213][ T848] RAX: ffffffffffffffda RBX: 00007ffeaaec1a30 RCX: 00007fe327ed01d7 [ 112.917215][ T848] RDX: 0000000000000000 RSI: 00007ffeaaec1370 RDI: 0000000000000005 [ 112.917216][ T848] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 112.917218][ T848] R10: 00007fe327dccf60 R11: 0000000000000246 R12: 0000000000000002 [ 112.917220][ T848] R13: 00000000690df59e R14: 0000000000499600 R15: 0000000000000000 [ 112.917226][ T848] [ 112.917227][ T848] [ 112.930375][ T848] Allocated by task 470: [ 112.930517][ T848] kasan_save_stack+0x24/0x40 [ 112.930693][ T848] kasan_save_track+0x14/0x30 [ 112.930864][ T848] __kasan_kmalloc+0x7b/0x90 [ 112.931040][ T848] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 112.931244][ T848] alloc_netdev_mqs+0x7d/0x1370 [ 112.931417][ T848] rtnl_create_link+0xa9e/0xe20 [ 112.931586][ T848] rtnl_newlink_create+0x203/0x770 [ 112.931746][ T848] __rtnl_newlink+0x231/0xa30 [ 112.931933][ T848] rtnl_newlink+0x693/0xa60 [ 112.932117][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 112.932288][ T848] netlink_rcv_skb+0x121/0x340 [ 112.932467][ T848] netlink_unicast+0x4aa/0x780 [ 112.932634][ T848] netlink_sendmsg+0x714/0xbd0 [ 112.932800][ T848] ____sys_sendmsg+0x3dd/0x890 [ 112.932977][ T848] ___sys_sendmsg+0xed/0x170 [ 112.933155][ T848] __sys_sendmsg+0x10b/0x1a0 [ 112.933333][ T848] do_syscall_64+0xc1/0xfd0 [ 112.933507][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 112.933724][ T848] [ 112.933814][ T848] Freed by task 848: [ 112.933938][ T848] kasan_save_stack+0x24/0x40 [ 112.934122][ T848] kasan_save_track+0x14/0x30 [ 112.934287][ T848] __kasan_save_free_info+0x3b/0x60 [ 112.934451][ T848] __kasan_slab_free+0x3f/0x60 [ 112.934626][ T848] kfree+0x21d/0x540 [ 112.934749][ T848] device_release+0x9c/0x210 [ 112.934928][ T848] kobject_cleanup+0xfe/0x360 [ 112.935114][ T848] netdev_run_todo+0x81f/0xc60 [ 112.935282][ T848] rtnl_dellink+0x350/0xa30 [ 112.935445][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 112.935608][ T848] netlink_rcv_skb+0x121/0x340 [ 112.935772][ T848] netlink_unicast+0x4aa/0x780 [ 112.935948][ T848] netlink_sendmsg+0x714/0xbd0 [ 112.936124][ T848] ____sys_sendmsg+0x3dd/0x890 [ 112.936292][ T848] ___sys_sendmsg+0xed/0x170 [ 112.936457][ T848] __sys_sendmsg+0x10b/0x1a0 [ 112.936630][ T848] do_syscall_64+0xc1/0xfd0 [ 112.936800][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 112.937007][ T848] [ 112.937092][ T848] The buggy address belongs to the object at ffff888005111000 [ 112.937092][ T848] which belongs to the cache kmalloc-4k of size 4096 [ 112.937511][ T848] The buggy address is located 1708 bytes inside of [ 112.937511][ T848] freed 4096-byte region [ffff888005111000, ffff888005112000) [ 112.937916][ T848] [ 112.938002][ T848] The buggy address belongs to the physical page: [ 112.938217][ T848] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5110 [ 112.938521][ T848] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 112.938773][ T848] flags: 0x80000000000040(head|node=0|zone=1) [ 112.938996][ T848] page_type: f5(slab) [ 112.939127][ T848] raw: 0080000000000040 ffff888001043700 ffffea00002e9210 ffffea0000272210 [ 112.939450][ T848] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 112.939763][ T848] head: 0080000000000040 ffff888001043700 ffffea00002e9210 ffffea0000272210 [ 112.940066][ T848] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 112.940376][ T848] head: 0080000000000003 ffffea0000144401 00000000ffffffff 00000000ffffffff [ 112.940667][ T848] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 112.940989][ T848] page dumped because: kasan: bad access detected [ 112.941210][ T848] [ 112.941310][ T848] Memory state around the buggy address: [ 112.941475][ T848] ffff888005111580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 112.941712][ T848] ffff888005111600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 112.941958][ T848] >ffff888005111680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 112.942207][ T848] ^ [ 112.942392][ T848] ffff888005111700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 112.942630][ T848] ffff888005111780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 112.942879][ T848] ================================================================== [ 112.943178][ T848] Disabling lock debugging due to kernel taint [ 112.943402][ T848] ------------[ cut here ]------------ [ 112.943558][ T848] refcount_t: underflow; use-after-free. [ 112.943758][ T848] WARNING: CPU: 3 PID: 848 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 112.944070][ T848] Modules linked in: sch_tbf sch_prio bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth [ 112.944436][ T848] CPU: 3 UID: 0 PID: 848 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 112.944789][ T848] Tainted: [B]=BAD_PAGE [ 112.944927][ T848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 112.945140][ T848] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 112.945361][ T848] 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 c5 9b 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 [ 112.945985][ T848] RSP: 0018:ffffc90000f9f1f0 EFLAGS: 00010286 [ 112.946196][ T848] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 112.946467][ T848] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 112.946726][ T848] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff38be134 [ 112.947002][ T848] R10: 0000000000000003 R11: ffffc90000f9ed80 R12: 0000000000000001 [ 112.947255][ T848] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 112.947518][ T848] FS: 00007fe327d02800(0000) GS:ffff888098972000(0000) knlGS:0000000000000000 [ 112.947839][ T848] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 112.948047][ T848] CR2: 00005628074b3ba8 CR3: 000000000f012004 CR4: 0000000000772ef0 [ 112.948297][ T848] PKRU: 55555554 [ 112.948425][ T848] Call Trace: [ 112.948562][ T848] [ 112.948649][ T848] netdev_run_todo+0x5f0/0xc60 [ 112.948844][ T848] ? dev_ingress_queue_create+0x190/0x190 [ 112.949018][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 112.949189][ T848] ? generic_xdp_install+0x410/0x410 [ 112.949352][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 112.949533][ T848] rtnl_dellink+0x350/0xa30 [ 112.949711][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 112.949957][ T848] ? find_held_lock+0x2b/0x80 [ 112.950127][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.950303][ T848] ? find_held_lock+0x2b/0x80 [ 112.950469][ T848] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 112.950662][ T848] ? __lock_release+0x5d/0x170 [ 112.950849][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 112.951055][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 112.951223][ T848] ? rtnl_port_fill+0x850/0x850 [ 112.951400][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.951591][ T848] netlink_rcv_skb+0x121/0x340 [ 112.951758][ T848] ? rtnl_port_fill+0x850/0x850 [ 112.951942][ T848] ? netlink_ack+0xdd0/0xdd0 [ 112.952117][ T848] ? netlink_deliver_tap+0x13e/0x340 [ 112.952280][ T848] ? netlink_deliver_tap+0xc3/0x340 [ 112.952467][ T848] netlink_unicast+0x4aa/0x780 [ 112.952770][ T848] ? netlink_attachskb+0x810/0x810 [ 112.953060][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.953241][ T848] netlink_sendmsg+0x714/0xbd0 [ 112.953412][ T848] ? netlink_unicast+0x780/0x780 [ 112.953696][ T848] ? __import_iovec+0x230/0x3b0 [ 112.953885][ T848] ? netlink_unicast+0x780/0x780 [ 112.954051][ T848] ____sys_sendmsg+0x3dd/0x890 [ 112.954218][ T848] ? get_timestamp.constprop.0+0x380/0x380 [ 112.954427][ T848] ? __copy_msghdr+0x3c0/0x3c0 [ 112.954712][ T848] ___sys_sendmsg+0xed/0x170 [ 112.955018][ T848] ? kasan_record_aux_stack+0x8c/0xa0 [ 112.955186][ T848] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 112.955396][ T848] ? copy_msghdr_from_user+0x110/0x110 [ 112.955668][ T848] ? find_held_lock+0x2b/0x80 [ 112.955847][ T848] ? __lock_acquire+0x449/0x7e0 [ 112.956019][ T848] ? find_held_lock+0x2b/0x80 [ 112.956186][ T848] ? __virt_addr_valid+0x22a/0x450 [ 112.956364][ T848] ? __lock_release+0x5d/0x170 [ 112.956633][ T848] __sys_sendmsg+0x10b/0x1a0 [ 112.956941][ T848] ? __call_rcu_common.constprop.0+0x318/0x630 [ 112.957149][ T848] ? __sys_sendmsg_sock+0x20/0x20 [ 112.957317][ T848] ? rcu_is_watching+0x12/0xb0 [ 112.957481][ T848] do_syscall_64+0xc1/0xfd0 [ 112.957651][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 112.957899][ T848] RIP: 0033:0x7fe327ed01d7 [ 112.958083][ T848] 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 [ 112.959025][ T848] RSP: 002b:00007ffeaaec1308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 112.959285][ T848] RAX: ffffffffffffffda RBX: 00007ffeaaec1a30 RCX: 00007fe327ed01d7 [ 112.959540][ T848] RDX: 0000000000000000 RSI: 00007ffeaaec1370 RDI: 0000000000000005 [ 112.959825][ T848] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 112.960072][ T848] R10: 00007fe327dccf60 R11: 0000000000000246 R12: 0000000000000002 [ 112.960422][ T848] R13: 00000000690df59e R14: 0000000000499600 R15: 0000000000000000 [ 112.960681][ T848] [ 112.960870][ T848] irq event stamp: 37241 [ 112.961008][ T848] hardirqs last enabled at (37241): [] irqentry_exit+0x3b/0x80 [ 112.961410][ T848] hardirqs last disabled at (37240): [] handle_softirqs+0x47f/0x610 [ 112.961726][ T848] softirqs last enabled at (36088): [] unregister_netdevice_many_notify+0x711/0x1b30 [ 112.962197][ T848] softirqs last disabled at (36086): [] dev_mc_flush+0x54/0x90 [ 112.962549][ T848] ---[ end trace 0000000000000000 ]--- [ 113.137673][ T854] veth2.10: left allmulticast mode [ 113.137922][ T854] veth2: left allmulticast mode [ 113.138134][ T854] veth2.10: left promiscuous mode [ 113.138326][ T854] veth2: left promiscuous mode [ 113.138863][ T854] br10: port 2(veth2.10) entered disabled state [ 113.555950][ T864] veth1.11: left allmulticast mode [ 113.556168][ T864] veth1.11: left promiscuous mode [ 113.556674][ T864] br11: port 1(veth1.11) entered disabled state [ 113.815716][ T870] veth1.10: left allmulticast mode [ 113.815982][ T870] veth1: left allmulticast mode [ 113.816185][ T870] veth1.10: left promiscuous mode [ 113.816369][ T870] veth1: left promiscuous mode [ 113.816892][ T870] br10: port 1(veth1.10) entered disabled state