[ 15.564233][ T252] ip (252) used greatest stack depth: 24144 bytes left [ 21.146718][ T315] gre: GRE over IPv4 demultiplexer driver [ 21.163325][ T315] ip_gre: GRE over IPv4 tunneling driver [ 22.129383][ T325] GACT probability NOT on [ 22.425758][ T327] ip6_gre: GRE over IPv6 tunneling driver [ 22.687993][ T69] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 22.823632][ T69] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 22.872781][ T69] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 23.494824][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 24.206644][ T341] br1: port 1(veth1) entered blocking state [ 24.207264][ T341] br1: port 1(veth1) entered disabled state [ 24.207906][ T341] veth1: entered allmulticast mode [ 24.211659][ T341] veth1: entered promiscuous mode [ 24.359362][ T37] br1: port 1(veth1) entered blocking state [ 24.360025][ T37] br1: port 1(veth1) entered forwarding state [ 24.482708][ T343] br1: port 2(veth2) entered blocking state [ 24.483247][ T343] br1: port 2(veth2) entered disabled state [ 24.484394][ T343] veth2: entered allmulticast mode [ 24.487931][ T343] veth2: entered promiscuous mode [ 24.521611][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 24.523187][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 24.535719][ T69] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 24.608961][ T45] br1: port 2(veth2) entered blocking state [ 24.609476][ T45] br1: port 2(veth2) entered forwarding state [ 25.439663][ T61] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 25.783663][ T61] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 26.056468][ T12] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 26.161020][ T359] 8021q: 802.1Q VLAN Support v1.8 [ 26.430970][ T362] br2: port 1(veth4.555) entered blocking state [ 26.431481][ T362] br2: port 1(veth4.555) entered disabled state [ 26.431930][ T362] veth4.555: entered allmulticast mode [ 26.432233][ T362] veth4: entered allmulticast mode [ 26.435869][ T362] veth4.555: entered promiscuous mode [ 26.436214][ T362] veth4: entered promiscuous mode [ 26.437491][ T362] br2: port 1(veth4.555) entered blocking state [ 26.438006][ T362] br2: port 1(veth4.555) entered forwarding state [ 28.038624][ T69] ip6_tnl_xmit_ctl: 2 callbacks suppressed [ 28.038636][ T69] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 28.551596][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 34.249229][ T396] Mirror/redirect action on [ 36.808563][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 53.190753][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 87.495826][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 91.213825][ T654] br2: port 1(veth4.555) entered disabled state [ 97.400930][ T676] br2: port 1(veth4.555) entered forwarding state [ 109.670785][ T736] br2: port 1(veth4.555) entered disabled state [ 115.785201][ T758] br2: port 1(veth4.555) entered forwarding state [ 122.318250][ T788] ================================================================== [ 122.318549][ T788] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 122.318824][ T788] Read of size 1 at addr ffff8880086416ac by task ip/788 [ 122.319039][ T788] [ 122.319137][ T788] CPU: 3 UID: 0 PID: 788 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 122.319142][ T788] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 122.319149][ T788] Call Trace: [ 122.319154][ T788] [ 122.319156][ T788] dump_stack_lvl+0x82/0xc0 [ 122.319162][ T788] print_address_description.constprop.0+0x2c/0x3a0 [ 122.319169][ T788] ? kobject_put+0xbb/0xd0 [ 122.319173][ T788] print_report+0xb4/0x270 [ 122.319176][ T788] ? kobject_put+0xbb/0xd0 [ 122.319180][ T788] ? kasan_addr_to_slab+0x21/0x70 [ 122.319183][ T788] ? kobject_put+0xbb/0xd0 [ 122.319186][ T788] kasan_report+0xca/0x100 [ 122.319190][ T788] ? kobject_put+0xbb/0xd0 [ 122.319195][ T788] kobject_put+0xbb/0xd0 [ 122.319199][ T788] netdev_run_todo+0x5f0/0xc60 [ 122.319204][ T788] ? dev_ingress_queue_create+0x190/0x190 [ 122.319208][ T788] ? generic_xdp_install+0x410/0x410 [ 122.319212][ T788] ? lockdep_hardirqs_on+0x7c/0x110 [ 122.319219][ T788] rtnl_dellink+0x350/0xa30 [ 122.319224][ T788] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 122.319243][ T788] ? find_held_lock+0x2b/0x80 [ 122.319250][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.319257][ T788] ? find_held_lock+0x2b/0x80 [ 122.319261][ T788] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 122.319263][ T788] ? __lock_release+0x5d/0x170 [ 122.319268][ T788] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 122.319271][ T788] rtnetlink_rcv_msg+0x709/0xc00 [ 122.319275][ T788] ? rtnl_port_fill+0x850/0x850 [ 122.319278][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.319285][ T788] netlink_rcv_skb+0x121/0x340 [ 122.319290][ T788] ? rtnl_port_fill+0x850/0x850 [ 122.319294][ T788] ? netlink_ack+0xdd0/0xdd0 [ 122.319300][ T788] ? netlink_deliver_tap+0x13e/0x340 [ 122.319303][ T788] ? netlink_deliver_tap+0xc3/0x340 [ 122.319307][ T788] netlink_unicast+0x4aa/0x780 [ 122.319312][ T788] ? netlink_attachskb+0x810/0x810 [ 122.319316][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.319321][ T788] netlink_sendmsg+0x714/0xbd0 [ 122.319325][ T788] ? netlink_unicast+0x780/0x780 [ 122.319329][ T788] ? __import_iovec+0x230/0x3b0 [ 122.319336][ T788] ? netlink_unicast+0x780/0x780 [ 122.319339][ T788] ____sys_sendmsg+0x3dd/0x890 [ 122.319346][ T788] ? get_timestamp.constprop.0+0x380/0x380 [ 122.319349][ T788] ? __copy_msghdr+0x3c0/0x3c0 [ 122.319357][ T788] ___sys_sendmsg+0xed/0x170 [ 122.319361][ T788] ? kasan_record_aux_stack+0x8c/0xa0 [ 122.319364][ T788] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 122.319370][ T788] ? copy_msghdr_from_user+0x110/0x110 [ 122.319375][ T788] ? find_held_lock+0x2b/0x80 [ 122.319379][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.319385][ T788] ? find_held_lock+0x2b/0x80 [ 122.319388][ T788] ? __virt_addr_valid+0x22a/0x450 [ 122.319393][ T788] ? __lock_release+0x5d/0x170 [ 122.319399][ T788] __sys_sendmsg+0x10b/0x1a0 [ 122.319402][ T788] ? __call_rcu_common.constprop.0+0x318/0x630 [ 122.319406][ T788] ? __sys_sendmsg_sock+0x20/0x20 [ 122.319413][ T788] ? rcu_is_watching+0x12/0xb0 [ 122.319417][ T788] do_syscall_64+0xc1/0xfd0 [ 122.319422][ T788] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 122.319426][ T788] RIP: 0033:0x7f84731e91d7 [ 122.319431][ T788] 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 [ 122.319434][ T788] RSP: 002b:00007ffe21fd1e58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.319438][ T788] RAX: ffffffffffffffda RBX: 00007ffe21fd2580 RCX: 00007f84731e91d7 [ 122.319440][ T788] RDX: 0000000000000000 RSI: 00007ffe21fd1ec0 RDI: 0000000000000005 [ 122.319442][ T788] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 122.319443][ T788] R10: 00007f84730e5f60 R11: 0000000000000246 R12: 0000000000000002 [ 122.319445][ T788] R13: 00000000690df56e R14: 0000000000499600 R15: 0000000000000000 [ 122.319451][ T788] [ 122.319453][ T788] [ 122.332259][ T788] Allocated by task 367: [ 122.332405][ T788] kasan_save_stack+0x24/0x40 [ 122.332594][ T788] kasan_save_track+0x14/0x30 [ 122.332777][ T788] __kasan_kmalloc+0x7b/0x90 [ 122.332950][ T788] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 122.333123][ T788] alloc_netdev_mqs+0x7d/0x1370 [ 122.333299][ T788] rtnl_create_link+0xa9e/0xe20 [ 122.333473][ T788] rtnl_newlink_create+0x203/0x770 [ 122.333640][ T788] __rtnl_newlink+0x231/0xa30 [ 122.333812][ T788] rtnl_newlink+0x693/0xa60 [ 122.333999][ T788] rtnetlink_rcv_msg+0x709/0xc00 [ 122.334172][ T788] netlink_rcv_skb+0x121/0x340 [ 122.334353][ T788] netlink_unicast+0x4aa/0x780 [ 122.334525][ T788] netlink_sendmsg+0x714/0xbd0 [ 122.334693][ T788] ____sys_sendmsg+0x3dd/0x890 [ 122.334866][ T788] ___sys_sendmsg+0xed/0x170 [ 122.335038][ T788] __sys_sendmsg+0x10b/0x1a0 [ 122.335211][ T788] do_syscall_64+0xc1/0xfd0 [ 122.335387][ T788] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 122.335607][ T788] [ 122.335693][ T788] Freed by task 788: [ 122.335826][ T788] kasan_save_stack+0x24/0x40 [ 122.336001][ T788] kasan_save_track+0x14/0x30 [ 122.336176][ T788] __kasan_save_free_info+0x3b/0x60 [ 122.336347][ T788] __kasan_slab_free+0x3f/0x60 [ 122.336520][ T788] kfree+0x21d/0x540 [ 122.336647][ T788] device_release+0x9c/0x210 [ 122.336828][ T788] kobject_cleanup+0xfe/0x360 [ 122.337001][ T788] netdev_run_todo+0x81f/0xc60 [ 122.337189][ T788] rtnl_dellink+0x350/0xa30 [ 122.337360][ T788] rtnetlink_rcv_msg+0x709/0xc00 [ 122.337528][ T788] netlink_rcv_skb+0x121/0x340 [ 122.337698][ T788] netlink_unicast+0x4aa/0x780 [ 122.337869][ T788] netlink_sendmsg+0x714/0xbd0 [ 122.338038][ T788] ____sys_sendmsg+0x3dd/0x890 [ 122.338227][ T788] ___sys_sendmsg+0xed/0x170 [ 122.338399][ T788] __sys_sendmsg+0x10b/0x1a0 [ 122.338572][ T788] do_syscall_64+0xc1/0xfd0 [ 122.338751][ T788] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 122.338968][ T788] [ 122.339053][ T788] The buggy address belongs to the object at ffff888008641000 [ 122.339053][ T788] which belongs to the cache kmalloc-4k of size 4096 [ 122.339478][ T788] The buggy address is located 1708 bytes inside of [ 122.339478][ T788] freed 4096-byte region [ffff888008641000, ffff888008642000) [ 122.339889][ T788] [ 122.339978][ T788] The buggy address belongs to the physical page: [ 122.340190][ T788] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8640 [ 122.340624][ T788] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 122.341019][ T788] flags: 0x80000000000040(head|node=0|zone=1) [ 122.341245][ T788] page_type: f5(slab) [ 122.341393][ T788] raw: 0080000000000040 ffff888001043700 ffffea00002ff210 ffffea0000224410 [ 122.341930][ T788] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 122.342270][ T788] head: 0080000000000040 ffff888001043700 ffffea00002ff210 ffffea0000224410 [ 122.342602][ T788] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 122.343119][ T788] head: 0080000000000003 ffffea0000219001 00000000ffffffff 00000000ffffffff [ 122.343432][ T788] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 122.343875][ T788] page dumped because: kasan: bad access detected [ 122.344137][ T788] [ 122.344238][ T788] Memory state around the buggy address: [ 122.344529][ T788] ffff888008641580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.344814][ T788] ffff888008641600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.345094][ T788] >ffff888008641680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.345378][ T788] ^ [ 122.345576][ T788] ffff888008641700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.345864][ T788] ffff888008641780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 122.346235][ T788] ================================================================== [ 122.346550][ T788] Disabling lock debugging due to kernel taint [ 122.346809][ T788] ------------[ cut here ]------------ [ 122.347077][ T788] refcount_t: underflow; use-after-free. [ 122.347306][ T788] WARNING: CPU: 3 PID: 788 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 122.347654][ T788] Modules linked in: cls_flower act_mirred 8021q bridge stp llc ip6_gre ip6_tunnel tunnel6 act_gact cls_matchall ip_gre gre sch_ingress vrf veth [ 122.348221][ T788] CPU: 3 UID: 0 PID: 788 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 122.348610][ T788] Tainted: [B]=BAD_PAGE [ 122.348778][ T788] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 122.349022][ T788] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 122.349269][ T788] 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 25 88 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 [ 122.350178][ T788] RSP: 0018:ffffc9000150f1f0 EFLAGS: 00010286 [ 122.350435][ T788] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 122.350830][ T788] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 122.351109][ T788] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff117e134 [ 122.351395][ T788] R10: 0000000000000003 R11: ffffc9000150ed80 R12: 0000000000000001 [ 122.351785][ T788] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 122.352063][ T788] FS: 00007f847301b800(0000) GS:ffff8880ac372000(0000) knlGS:0000000000000000 [ 122.352508][ T788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.352851][ T788] CR2: 00000000004e6e70 CR3: 000000000be74002 CR4: 0000000000772ef0 [ 122.353128][ T788] PKRU: 55555554 [ 122.353467][ T788] Call Trace: [ 122.353607][ T788] [ 122.353701][ T788] netdev_run_todo+0x5f0/0xc60 [ 122.353993][ T788] ? dev_ingress_queue_create+0x190/0x190 [ 122.354174][ T788] ? generic_xdp_install+0x410/0x410 [ 122.354463][ T788] ? lockdep_hardirqs_on+0x7c/0x110 [ 122.354659][ T788] rtnl_dellink+0x350/0xa30 [ 122.354839][ T788] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 122.355069][ T788] ? find_held_lock+0x2b/0x80 [ 122.355345][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.355525][ T788] ? find_held_lock+0x2b/0x80 [ 122.355705][ T788] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 122.355891][ T788] ? __lock_release+0x5d/0x170 [ 122.356166][ T788] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 122.356391][ T788] rtnetlink_rcv_msg+0x709/0xc00 [ 122.356567][ T788] ? rtnl_port_fill+0x850/0x850 [ 122.356853][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.357043][ T788] netlink_rcv_skb+0x121/0x340 [ 122.357226][ T788] ? rtnl_port_fill+0x850/0x850 [ 122.357410][ T788] ? netlink_ack+0xdd0/0xdd0 [ 122.357702][ T788] ? netlink_deliver_tap+0x13e/0x340 [ 122.357880][ T788] ? netlink_deliver_tap+0xc3/0x340 [ 122.358058][ T788] netlink_unicast+0x4aa/0x780 [ 122.358242][ T788] ? netlink_attachskb+0x810/0x810 [ 122.358518][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.358697][ T788] netlink_sendmsg+0x714/0xbd0 [ 122.358879][ T788] ? netlink_unicast+0x780/0x780 [ 122.359069][ T788] ? __import_iovec+0x230/0x3b0 [ 122.359357][ T788] ? netlink_unicast+0x780/0x780 [ 122.359533][ T788] ____sys_sendmsg+0x3dd/0x890 [ 122.359717][ T788] ? get_timestamp.constprop.0+0x380/0x380 [ 122.359950][ T788] ? __copy_msghdr+0x3c0/0x3c0 [ 122.360226][ T788] ___sys_sendmsg+0xed/0x170 [ 122.360412][ T788] ? kasan_record_aux_stack+0x8c/0xa0 [ 122.360589][ T788] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 122.360818][ T788] ? copy_msghdr_from_user+0x110/0x110 [ 122.361108][ T788] ? find_held_lock+0x2b/0x80 [ 122.361286][ T788] ? __lock_acquire+0x449/0x7e0 [ 122.361471][ T788] ? find_held_lock+0x2b/0x80 [ 122.361646][ T788] ? __virt_addr_valid+0x22a/0x450 [ 122.361947][ T788] ? __lock_release+0x5d/0x170 [ 122.362193][ T788] __sys_sendmsg+0x10b/0x1a0 [ 122.362387][ T788] ? __call_rcu_common.constprop.0+0x318/0x630 [ 122.362624][ T788] ? __sys_sendmsg_sock+0x20/0x20 [ 122.362901][ T788] ? rcu_is_watching+0x12/0xb0 [ 122.363094][ T788] do_syscall_64+0xc1/0xfd0 [ 122.363305][ T788] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 122.363640][ T788] RIP: 0033:0x7f84731e91d7 [ 122.363846][ T788] 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 [ 122.364531][ T788] RSP: 002b:00007ffe21fd1e58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 122.364835][ T788] RAX: ffffffffffffffda RBX: 00007ffe21fd2580 RCX: 00007f84731e91d7 [ 122.365130][ T788] RDX: 0000000000000000 RSI: 00007ffe21fd1ec0 RDI: 0000000000000005 [ 122.365512][ T788] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 122.365803][ T788] R10: 00007f84730e5f60 R11: 0000000000000246 R12: 0000000000000002 [ 122.366105][ T788] R13: 00000000690df56e R14: 0000000000499600 R15: 0000000000000000 [ 122.366384][ T788] [ 122.366526][ T788] irq event stamp: 47073 [ 122.366676][ T788] hardirqs last enabled at (47073): [] irqentry_exit+0x3b/0x80 [ 122.367004][ T788] hardirqs last disabled at (47072): [] handle_softirqs+0x47f/0x610 [ 122.367455][ T788] softirqs last enabled at (46992): [] handle_softirqs+0x352/0x610 [ 122.367891][ T788] softirqs last disabled at (46985): [] irq_exit_rcu+0xab/0x100 [ 122.368205][ T788] ---[ end trace 0000000000000000 ]--- [ 122.437402][ T790] veth4.555: left allmulticast mode [ 122.437711][ T790] veth4: left allmulticast mode [ 122.437948][ T790] veth4.555: left promiscuous mode [ 122.438169][ T790] veth4: left promiscuous mode [ 122.439349][ T790] br2: port 1(veth4.555) entered disabled state [ 122.951659][ T796] br1: port 1(veth1) entered disabled state [ 123.028198][ T797] br1: port 2(veth2) entered disabled state [ 123.101174][ T798] veth2: left allmulticast mode [ 123.101473][ T798] veth2: left promiscuous mode [ 123.101805][ T798] br1: port 2(veth2) entered disabled state [ 123.103107][ T798] veth1: left allmulticast mode [ 123.103365][ T798] veth1: left promiscuous mode [ 123.103703][ T798] br1: port 1(veth1) entered disabled state