[ 17.950149][ T251] ip (251) used greatest stack depth: 23824 bytes left [ 24.694164][ T313] gre: GRE over IPv4 demultiplexer driver [ 24.718645][ T313] ip_gre: GRE over IPv4 tunneling driver [ 25.876377][ T323] GACT probability NOT on [ 26.215723][ T325] ip6_gre: GRE over IPv6 tunneling driver [ 26.423784][ T63] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 26.470316][ T63] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 26.685227][ T63] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 27.286243][ T63] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 27.287192][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 28.245048][ T340] br1: port 1(veth1) entered blocking state [ 28.245713][ T340] br1: port 1(veth1) entered disabled state [ 28.246525][ T340] veth1: entered allmulticast mode [ 28.250446][ T340] veth1: entered promiscuous mode [ 28.310809][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 28.312514][ T12] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 28.436685][ T46] br1: port 1(veth1) entered blocking state [ 28.437452][ T46] br1: port 1(veth1) entered forwarding state [ 28.582429][ T342] br1: port 2(veth2) entered blocking state [ 28.583369][ T342] br1: port 2(veth2) entered disabled state [ 28.584008][ T342] veth2: entered allmulticast mode [ 28.589049][ T342] veth2: entered promiscuous mode [ 28.757762][ T46] br1: port 2(veth2) entered blocking state [ 28.758842][ T46] br1: port 2(veth2) entered forwarding state [ 29.081064][ T63] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 29.601447][ T60] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 29.734338][ T351] br1: port 2(veth2) entered disabled state [ 29.735961][ T351] br1: port 1(veth1) entered disabled state [ 29.866566][ T352] br1: port 3(veth4) entered blocking state [ 29.867548][ T352] br1: port 3(veth4) entered disabled state [ 29.868106][ T352] veth4: entered allmulticast mode [ 29.872109][ T352] veth4: entered promiscuous mode [ 29.951246][ T60] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 30.115427][ T354] br1: port 3(veth4) entered blocking state [ 30.115994][ T354] br1: port 3(veth4) entered forwarding state [ 30.116987][ T354] br1: port 2(veth2) entered blocking state [ 30.117446][ T354] br1: port 2(veth2) entered forwarding state [ 30.118175][ T354] br1: port 1(veth1) entered blocking state [ 30.118628][ T354] br1: port 1(veth1) entered forwarding state [ 31.070392][ T360] 8021q: 802.1Q VLAN Support v1.8 [ 31.511077][ T12] ip6_tnl_xmit_ctl: 1 callbacks suppressed [ 31.511088][ T12] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 31.513456][ T12] ip6_tunnel: gt6 xmit: Local address not yet configured! [ 32.727325][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 39.233640][ T394] Mirror/redirect action on [ 40.918630][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 56.791192][ C3] ip6_tunnel: h3-gt6 xmit: Local address not yet configured! [ 84.029390][ T586] veth4: left allmulticast mode [ 84.029833][ T586] veth4: left promiscuous mode [ 84.031067][ T586] br1: port 3(veth4) entered disabled state [ 84.219304][ T587] ================================================================== [ 84.219654][ T587] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 84.220006][ T587] Read of size 1 at addr ffff888004dbc6ac by task ip/587 [ 84.220276][ T587] [ 84.220388][ T587] CPU: 2 UID: 0 PID: 587 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 84.220394][ T587] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 84.220397][ T587] Call Trace: [ 84.220399][ T587] [ 84.220401][ T587] dump_stack_lvl+0x82/0xc0 [ 84.220413][ T587] print_address_description.constprop.0+0x2c/0x3a0 [ 84.220423][ T587] ? kobject_put+0xbb/0xd0 [ 84.220430][ T587] print_report+0xb4/0x270 [ 84.220435][ T587] ? kobject_put+0xbb/0xd0 [ 84.220443][ T587] ? kasan_addr_to_slab+0x21/0x70 [ 84.220450][ T587] ? kobject_put+0xbb/0xd0 [ 84.220455][ T587] kasan_report+0xca/0x100 [ 84.220461][ T587] ? kobject_put+0xbb/0xd0 [ 84.220469][ T587] kobject_put+0xbb/0xd0 [ 84.220473][ T587] netdev_run_todo+0x5f0/0xc60 [ 84.220478][ T587] ? dev_ingress_queue_create+0x190/0x190 [ 84.220482][ T587] ? generic_xdp_install+0x410/0x410 [ 84.220486][ T587] ? lockdep_hardirqs_on+0x7c/0x110 [ 84.220494][ T587] rtnl_dellink+0x350/0xa30 [ 84.220500][ T587] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 84.220519][ T587] ? find_held_lock+0x2b/0x80 [ 84.220526][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.220534][ T587] ? find_held_lock+0x2b/0x80 [ 84.220537][ T587] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 84.220540][ T587] ? __lock_release+0x5d/0x170 [ 84.220545][ T587] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 84.220549][ T587] rtnetlink_rcv_msg+0x709/0xc00 [ 84.220552][ T587] ? rtnl_port_fill+0x850/0x850 [ 84.220555][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.220562][ T587] netlink_rcv_skb+0x121/0x340 [ 84.220568][ T587] ? rtnl_port_fill+0x850/0x850 [ 84.220574][ T587] ? netlink_ack+0xdd0/0xdd0 [ 84.220585][ T587] ? netlink_deliver_tap+0x13e/0x340 [ 84.220591][ T587] ? netlink_deliver_tap+0xc3/0x340 [ 84.220598][ T587] netlink_unicast+0x4aa/0x780 [ 84.220607][ T587] ? netlink_attachskb+0x810/0x810 [ 84.220614][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.220625][ T587] netlink_sendmsg+0x714/0xbd0 [ 84.220630][ T587] ? netlink_unicast+0x780/0x780 [ 84.220633][ T587] ? __import_iovec+0x230/0x3b0 [ 84.220641][ T587] ? netlink_unicast+0x780/0x780 [ 84.220645][ T587] ____sys_sendmsg+0x3dd/0x890 [ 84.220652][ T587] ? get_timestamp.constprop.0+0x380/0x380 [ 84.220655][ T587] ? __copy_msghdr+0x3c0/0x3c0 [ 84.220663][ T587] ___sys_sendmsg+0xed/0x170 [ 84.220667][ T587] ? kasan_record_aux_stack+0x8c/0xa0 [ 84.220670][ T587] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 84.220679][ T587] ? copy_msghdr_from_user+0x110/0x110 [ 84.220683][ T587] ? find_held_lock+0x2b/0x80 [ 84.220688][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.220712][ T587] ? find_held_lock+0x2b/0x80 [ 84.220718][ T587] ? __virt_addr_valid+0x22a/0x450 [ 84.220727][ T587] ? __lock_release+0x5d/0x170 [ 84.220741][ T587] __sys_sendmsg+0x10b/0x1a0 [ 84.220750][ T587] ? __call_rcu_common.constprop.0+0x318/0x630 [ 84.220758][ T587] ? __sys_sendmsg_sock+0x20/0x20 [ 84.220767][ T587] ? rcu_is_watching+0x12/0xb0 [ 84.220772][ T587] do_syscall_64+0xc1/0xfd0 [ 84.220778][ T587] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 84.220783][ T587] RIP: 0033:0x7fe5156081d7 [ 84.220790][ T587] 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 [ 84.220793][ T587] RSP: 002b:00007ffdbdf671c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.220798][ T587] RAX: ffffffffffffffda RBX: 00007ffdbdf678f0 RCX: 00007fe5156081d7 [ 84.220801][ T587] RDX: 0000000000000000 RSI: 00007ffdbdf67230 RDI: 0000000000000005 [ 84.220802][ T587] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 84.220804][ T587] R10: 00007fe515504f60 R11: 0000000000000246 R12: 0000000000000002 [ 84.220806][ T587] R13: 00000000690dec22 R14: 0000000000499600 R15: 0000000000000000 [ 84.220813][ T587] [ 84.220814][ T587] [ 84.236350][ T587] Allocated by task 359: [ 84.236494][ T587] kasan_save_stack+0x24/0x40 [ 84.236708][ T587] kasan_save_track+0x14/0x30 [ 84.237016][ T587] __kasan_kmalloc+0x7b/0x90 [ 84.237195][ T587] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 84.237389][ T587] alloc_netdev_mqs+0x7d/0x1370 [ 84.237615][ T587] rtnl_create_link+0xa9e/0xe20 [ 84.237917][ T587] rtnl_newlink_create+0x203/0x770 [ 84.238116][ T587] __rtnl_newlink+0x231/0xa30 [ 84.238322][ T587] rtnl_newlink+0x693/0xa60 [ 84.238628][ T587] rtnetlink_rcv_msg+0x709/0xc00 [ 84.238941][ T587] netlink_rcv_skb+0x121/0x340 [ 84.239137][ T587] netlink_unicast+0x4aa/0x780 [ 84.239329][ T587] netlink_sendmsg+0x714/0xbd0 [ 84.239528][ T587] ____sys_sendmsg+0x3dd/0x890 [ 84.239748][ T587] ___sys_sendmsg+0xed/0x170 [ 84.239944][ T587] __sys_sendmsg+0x10b/0x1a0 [ 84.240143][ T587] do_syscall_64+0xc1/0xfd0 [ 84.240341][ T587] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 84.240643][ T587] [ 84.240797][ T587] Freed by task 587: [ 84.240947][ T587] kasan_save_stack+0x24/0x40 [ 84.241131][ T587] kasan_save_track+0x14/0x30 [ 84.241305][ T587] __kasan_save_free_info+0x3b/0x60 [ 84.241482][ T587] __kasan_slab_free+0x3f/0x60 [ 84.241665][ T587] kfree+0x21d/0x540 [ 84.241806][ T587] device_release+0x9c/0x210 [ 84.241987][ T587] kobject_cleanup+0xfe/0x360 [ 84.242378][ T587] netdev_run_todo+0x81f/0xc60 [ 84.242545][ T587] rtnl_dellink+0x350/0xa30 [ 84.242812][ T587] rtnetlink_rcv_msg+0x709/0xc00 [ 84.243039][ T587] netlink_rcv_skb+0x121/0x340 [ 84.243232][ T587] netlink_unicast+0x4aa/0x780 [ 84.243423][ T587] netlink_sendmsg+0x714/0xbd0 [ 84.243644][ T587] ____sys_sendmsg+0x3dd/0x890 [ 84.243851][ T587] ___sys_sendmsg+0xed/0x170 [ 84.244074][ T587] __sys_sendmsg+0x10b/0x1a0 [ 84.244260][ T587] do_syscall_64+0xc1/0xfd0 [ 84.244459][ T587] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 84.244731][ T587] [ 84.244957][ T587] The buggy address belongs to the object at ffff888004dbc000 [ 84.244957][ T587] which belongs to the cache kmalloc-4k of size 4096 [ 84.245463][ T587] The buggy address is located 1708 bytes inside of [ 84.245463][ T587] freed 4096-byte region [ffff888004dbc000, ffff888004dbd000) [ 84.246063][ T587] [ 84.246173][ T587] The buggy address belongs to the physical page: [ 84.246411][ T587] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4db8 [ 84.246884][ T587] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 84.247161][ T587] flags: 0x80000000000040(head|node=0|zone=1) [ 84.247400][ T587] page_type: f5(slab) [ 84.247656][ T587] raw: 0080000000000040 ffff888001043700 ffffea000028de10 ffffea0000300410 [ 84.248039][ T587] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 84.248368][ T587] head: 0080000000000040 ffff888001043700 ffffea000028de10 ffffea0000300410 [ 84.248822][ T587] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 84.249153][ T587] head: 0080000000000003 ffffea0000136e01 00000000ffffffff 00000000ffffffff [ 84.249595][ T587] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 84.249941][ T587] page dumped because: kasan: bad access detected [ 84.250169][ T587] [ 84.250365][ T587] Memory state around the buggy address: [ 84.250539][ T587] ffff888004dbc580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.250841][ T587] ffff888004dbc600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.251209][ T587] >ffff888004dbc680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.251471][ T587] ^ [ 84.251669][ T587] ffff888004dbc700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.252051][ T587] ffff888004dbc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.252297][ T587] ================================================================== [ 84.253101][ T587] Disabling lock debugging due to kernel taint [ 84.253401][ T587] ------------[ cut here ]------------ [ 84.253618][ T587] refcount_t: underflow; use-after-free. [ 84.253845][ T587] WARNING: CPU: 3 PID: 587 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 84.254226][ T587] 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 [ 84.254784][ T587] CPU: 3 UID: 0 PID: 587 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 84.255212][ T587] Tainted: [B]=BAD_PAGE [ 84.255358][ T587] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 84.255608][ T587] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 84.255872][ T587] 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 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 [ 84.256593][ T587] RSP: 0018:ffffc90000f771f0 EFLAGS: 00010286 [ 84.256848][ T587] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 84.257158][ T587] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 84.257441][ T587] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff533e134 [ 84.257734][ T587] R10: 0000000000000003 R11: ffffc90000f76d80 R12: 0000000000000001 [ 84.258044][ T587] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 84.258330][ T587] FS: 00007fe51543a800(0000) GS:ffff88808b572000(0000) knlGS:0000000000000000 [ 84.258676][ T587] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.258913][ T587] CR2: 00000000004061e9 CR3: 000000000c754006 CR4: 0000000000772ef0 [ 84.259205][ T587] PKRU: 55555554 [ 84.259343][ T587] Call Trace: [ 84.259492][ T587] [ 84.259587][ T587] netdev_run_todo+0x5f0/0xc60 [ 84.259815][ T587] ? dev_ingress_queue_create+0x190/0x190 [ 84.260128][ T587] ? generic_xdp_install+0x410/0x410 [ 84.260311][ T587] ? lockdep_hardirqs_on+0x7c/0x110 [ 84.260509][ T587] rtnl_dellink+0x350/0xa30 [ 84.260726][ T587] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 84.261004][ T587] ? find_held_lock+0x2b/0x80 [ 84.261211][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.261426][ T587] ? find_held_lock+0x2b/0x80 [ 84.261628][ T587] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 84.261828][ T587] ? __lock_release+0x5d/0x170 [ 84.262048][ T587] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 84.262287][ T587] rtnetlink_rcv_msg+0x709/0xc00 [ 84.262490][ T587] ? rtnl_port_fill+0x850/0x850 [ 84.262684][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.262993][ T587] netlink_rcv_skb+0x121/0x340 [ 84.263201][ T587] ? rtnl_port_fill+0x850/0x850 [ 84.263384][ T587] ? netlink_ack+0xdd0/0xdd0 [ 84.263582][ T587] ? netlink_deliver_tap+0x13e/0x340 [ 84.263781][ T587] ? netlink_deliver_tap+0xc3/0x340 [ 84.263991][ T587] netlink_unicast+0x4aa/0x780 [ 84.264285][ T587] ? netlink_attachskb+0x810/0x810 [ 84.264471][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.264667][ T587] netlink_sendmsg+0x714/0xbd0 [ 84.264846][ T587] ? netlink_unicast+0x780/0x780 [ 84.265041][ T587] ? __import_iovec+0x230/0x3b0 [ 84.265231][ T587] ? netlink_unicast+0x780/0x780 [ 84.265413][ T587] ____sys_sendmsg+0x3dd/0x890 [ 84.265600][ T587] ? get_timestamp.constprop.0+0x380/0x380 [ 84.265831][ T587] ? __copy_msghdr+0x3c0/0x3c0 [ 84.266034][ T587] ___sys_sendmsg+0xed/0x170 [ 84.266237][ T587] ? kasan_record_aux_stack+0x8c/0xa0 [ 84.266448][ T587] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 84.266747][ T587] ? copy_msghdr_from_user+0x110/0x110 [ 84.266951][ T587] ? find_held_lock+0x2b/0x80 [ 84.267149][ T587] ? __lock_acquire+0x449/0x7e0 [ 84.267329][ T587] ? find_held_lock+0x2b/0x80 [ 84.267522][ T587] ? __virt_addr_valid+0x22a/0x450 [ 84.267774][ T587] ? __lock_release+0x5d/0x170 [ 84.268013][ T587] __sys_sendmsg+0x10b/0x1a0 [ 84.268196][ T587] ? __call_rcu_common.constprop.0+0x318/0x630 [ 84.268457][ T587] ? __sys_sendmsg_sock+0x20/0x20 [ 84.268671][ T587] ? rcu_is_watching+0x12/0xb0 [ 84.268853][ T587] do_syscall_64+0xc1/0xfd0 [ 84.269093][ T587] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 84.269309][ T587] RIP: 0033:0x7fe5156081d7 [ 84.269500][ T587] 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 [ 84.270194][ T587] RSP: 002b:00007ffdbdf671c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.270457][ T587] RAX: ffffffffffffffda RBX: 00007ffdbdf678f0 RCX: 00007fe5156081d7 [ 84.270743][ T587] RDX: 0000000000000000 RSI: 00007ffdbdf67230 RDI: 0000000000000005 [ 84.271047][ T587] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 84.271325][ T587] R10: 00007fe515504f60 R11: 0000000000000246 R12: 0000000000000002 [ 84.271623][ T587] R13: 00000000690dec22 R14: 0000000000499600 R15: 0000000000000000 [ 84.271936][ T587] [ 84.272086][ T587] irq event stamp: 47945 [ 84.272231][ T587] hardirqs last enabled at (47945): [] kasan_quarantine_put+0xf9/0x210 [ 84.272571][ T587] hardirqs last disabled at (47944): [] kasan_quarantine_put+0xac/0x210 [ 84.272903][ T587] softirqs last enabled at (47678): [] handle_softirqs+0x352/0x610 [ 84.273257][ T587] softirqs last disabled at (47671): [] irq_exit_rcu+0xab/0x100 [ 84.273587][ T587] ---[ end trace 0000000000000000 ]--- [ 84.665692][ T593] br1: port 1(veth1) entered disabled state [ 84.733104][ T594] br1: port 2(veth2) entered disabled state [ 84.812690][ T595] veth2: left allmulticast mode [ 84.812957][ T595] veth2: left promiscuous mode [ 84.813319][ T595] br1: port 2(veth2) entered disabled state [ 84.814601][ T595] veth1: left allmulticast mode [ 84.814849][ T595] veth1: left promiscuous mode [ 84.815237][ T595] br1: port 1(veth1) entered disabled state