[ 17.845721][ T252] ip (252) used greatest stack depth: 23776 bytes left [ 21.889310][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 27.545318][ T378] GACT probability NOT on [ 30.036852][ T413] br10: port 1(veth1.10) entered blocking state [ 30.037786][ T413] br10: port 1(veth1.10) entered disabled state [ 30.038775][ T413] veth1.10: entered allmulticast mode [ 30.039289][ T413] veth1: entered allmulticast mode [ 30.045364][ T413] veth1.10: entered promiscuous mode [ 30.045941][ T413] veth1: entered promiscuous mode [ 30.962729][ T430] br11: port 1(veth1.11) entered blocking state [ 30.963563][ T430] br11: port 1(veth1.11) entered disabled state [ 30.964345][ T430] veth1.11: entered allmulticast mode [ 30.970458][ T430] veth1.11: entered promiscuous mode [ 32.400055][ T460] br10: port 2(veth2.10) entered blocking state [ 32.401462][ T460] br10: port 2(veth2.10) entered disabled state [ 32.402245][ T460] veth2.10: entered allmulticast mode [ 32.402582][ T460] veth2: entered allmulticast mode [ 32.407198][ T460] veth2.10: entered promiscuous mode [ 32.407597][ T460] veth2: entered promiscuous mode [ 33.201414][ T477] br11: port 2(veth2.11) entered blocking state [ 33.201967][ T477] br11: port 2(veth2.11) entered disabled state [ 33.202493][ T477] veth2.11: entered allmulticast mode [ 33.208027][ T477] veth2.11: entered promiscuous mode [ 33.826500][ T489] br10: port 2(veth2.10) entered blocking state [ 33.827142][ T489] br10: port 2(veth2.10) entered forwarding state [ 33.828212][ T489] br10: port 1(veth1.10) entered blocking state [ 33.828728][ T489] br10: port 1(veth1.10) entered forwarding state [ 34.059758][ T494] br11: port 2(veth2.11) entered blocking state [ 34.060560][ T494] br11: port 2(veth2.11) entered forwarding state [ 34.061819][ T494] br11: port 1(veth1.11) entered blocking state [ 34.062611][ T494] br11: port 1(veth1.11) entered forwarding state [ 120.756998][ T840] br11: port 2(veth2.11) entered disabled state [ 120.758032][ T840] br11: port 1(veth1.11) entered disabled state [ 120.903486][ T842] br10: port 2(veth2.10) entered disabled state [ 120.904926][ T842] br10: port 1(veth1.10) entered disabled state [ 121.228816][ T846] veth2.11: left allmulticast mode [ 121.229256][ T846] veth2.11: left promiscuous mode [ 121.230121][ T846] br11: port 2(veth2.11) entered disabled state [ 121.456872][ T848] ================================================================== [ 121.457425][ T848] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 121.457864][ T848] Read of size 1 at addr ffff8880090096ac by task ip/848 [ 121.458237][ T848] [ 121.458442][ T848] CPU: 2 UID: 0 PID: 848 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 121.458450][ T848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 121.458454][ T848] Call Trace: [ 121.458457][ T848] [ 121.458461][ T848] dump_stack_lvl+0x82/0xc0 [ 121.458473][ T848] print_address_description.constprop.0+0x2c/0x3a0 [ 121.458484][ T848] ? kobject_put+0xbb/0xd0 [ 121.458490][ T848] print_report+0xb4/0x270 [ 121.458495][ T848] ? kobject_put+0xbb/0xd0 [ 121.458500][ T848] ? kasan_addr_to_slab+0x21/0x70 [ 121.458506][ T848] ? kobject_put+0xbb/0xd0 [ 121.458511][ T848] kasan_report+0xca/0x100 [ 121.458518][ T848] ? kobject_put+0xbb/0xd0 [ 121.458527][ T848] kobject_put+0xbb/0xd0 [ 121.458533][ T848] netdev_run_todo+0x5f0/0xc60 [ 121.458542][ T848] ? dev_ingress_queue_create+0x190/0x190 [ 121.458547][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 121.458555][ T848] ? generic_xdp_install+0x410/0x410 [ 121.458562][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 121.458569][ T848] rtnl_dellink+0x350/0xa30 [ 121.458577][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.458615][ T848] ? find_held_lock+0x2b/0x80 [ 121.458627][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.458638][ T848] ? find_held_lock+0x2b/0x80 [ 121.458645][ T848] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 121.458649][ T848] ? __lock_release+0x5d/0x170 [ 121.458657][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.458663][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 121.458669][ T848] ? rtnl_port_fill+0x850/0x850 [ 121.458674][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.458687][ T848] netlink_rcv_skb+0x121/0x340 [ 121.458693][ T848] ? rtnl_port_fill+0x850/0x850 [ 121.458699][ T848] ? netlink_ack+0xdd0/0xdd0 [ 121.458712][ T848] ? netlink_deliver_tap+0x13e/0x340 [ 121.458717][ T848] ? netlink_deliver_tap+0xc3/0x340 [ 121.458724][ T848] netlink_unicast+0x4aa/0x780 [ 121.458732][ T848] ? netlink_attachskb+0x810/0x810 [ 121.458739][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.458749][ T848] netlink_sendmsg+0x714/0xbd0 [ 121.458756][ T848] ? netlink_unicast+0x780/0x780 [ 121.458760][ T848] ? __import_iovec+0x230/0x3b0 [ 121.458768][ T848] ? netlink_unicast+0x780/0x780 [ 121.458773][ T848] ____sys_sendmsg+0x3dd/0x890 [ 121.458782][ T848] ? get_timestamp.constprop.0+0x380/0x380 [ 121.458786][ T848] ? __copy_msghdr+0x3c0/0x3c0 [ 121.458797][ T848] ___sys_sendmsg+0xed/0x170 [ 121.458801][ T848] ? kasan_record_aux_stack+0x8c/0xa0 [ 121.458805][ T848] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 121.458816][ T848] ? copy_msghdr_from_user+0x110/0x110 [ 121.458824][ T848] ? find_held_lock+0x2b/0x80 [ 121.458831][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.458840][ T848] ? find_held_lock+0x2b/0x80 [ 121.458845][ T848] ? __virt_addr_valid+0x22a/0x450 [ 121.458854][ T848] ? __lock_release+0x5d/0x170 [ 121.458864][ T848] __sys_sendmsg+0x10b/0x1a0 [ 121.458868][ T848] ? __call_rcu_common.constprop.0+0x318/0x630 [ 121.458874][ T848] ? __sys_sendmsg_sock+0x20/0x20 [ 121.458886][ T848] ? rcu_is_watching+0x12/0xb0 [ 121.458893][ T848] do_syscall_64+0xc1/0xfd0 [ 121.458901][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.458908][ T848] RIP: 0033:0x7fe542f951d7 [ 121.458915][ 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 [ 121.458920][ T848] RSP: 002b:00007fffeaa61518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.458927][ T848] RAX: ffffffffffffffda RBX: 00007fffeaa61c40 RCX: 00007fe542f951d7 [ 121.458930][ T848] RDX: 0000000000000000 RSI: 00007fffeaa61580 RDI: 0000000000000005 [ 121.458933][ T848] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 121.458935][ T848] R10: 00007fe542e91f60 R11: 0000000000000246 R12: 0000000000000002 [ 121.458938][ T848] R13: 00000000690deb31 R14: 0000000000499600 R15: 0000000000000000 [ 121.458949][ T848] [ 121.458951][ T848] [ 121.476704][ T848] Allocated by task 470: [ 121.476844][ T848] kasan_save_stack+0x24/0x40 [ 121.477051][ T848] kasan_save_track+0x14/0x30 [ 121.477229][ T848] __kasan_kmalloc+0x7b/0x90 [ 121.477500][ T848] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 121.477671][ T848] alloc_netdev_mqs+0x7d/0x1370 [ 121.477847][ T848] rtnl_create_link+0xa9e/0xe20 [ 121.478161][ T848] rtnl_newlink_create+0x203/0x770 [ 121.478452][ T848] __rtnl_newlink+0x231/0xa30 [ 121.478727][ T848] rtnl_newlink+0x693/0xa60 [ 121.478949][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 121.479134][ T848] netlink_rcv_skb+0x121/0x340 [ 121.479325][ T848] netlink_unicast+0x4aa/0x780 [ 121.479497][ T848] netlink_sendmsg+0x714/0xbd0 [ 121.479670][ T848] ____sys_sendmsg+0x3dd/0x890 [ 121.479850][ T848] ___sys_sendmsg+0xed/0x170 [ 121.480062][ T848] __sys_sendmsg+0x10b/0x1a0 [ 121.480348][ T848] do_syscall_64+0xc1/0xfd0 [ 121.480835][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.481089][ T848] [ 121.481211][ T848] Freed by task 848: [ 121.481348][ T848] kasan_save_stack+0x24/0x40 [ 121.481520][ T848] kasan_save_track+0x14/0x30 [ 121.481714][ T848] __kasan_save_free_info+0x3b/0x60 [ 121.481890][ T848] __kasan_slab_free+0x3f/0x60 [ 121.482112][ T848] kfree+0x21d/0x540 [ 121.482252][ T848] device_release+0x9c/0x210 [ 121.482452][ T848] kobject_cleanup+0xfe/0x360 [ 121.482629][ T848] netdev_run_todo+0x81f/0xc60 [ 121.482797][ T848] rtnl_dellink+0x350/0xa30 [ 121.483012][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 121.483199][ T848] netlink_rcv_skb+0x121/0x340 [ 121.483373][ T848] netlink_unicast+0x4aa/0x780 [ 121.483544][ T848] netlink_sendmsg+0x714/0xbd0 [ 121.483722][ T848] ____sys_sendmsg+0x3dd/0x890 [ 121.483895][ T848] ___sys_sendmsg+0xed/0x170 [ 121.484108][ T848] __sys_sendmsg+0x10b/0x1a0 [ 121.484404][ T848] do_syscall_64+0xc1/0xfd0 [ 121.484577][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.484807][ T848] [ 121.484895][ T848] The buggy address belongs to the object at ffff888009009000 [ 121.484895][ T848] which belongs to the cache kmalloc-4k of size 4096 [ 121.485358][ T848] The buggy address is located 1708 bytes inside of [ 121.485358][ T848] freed 4096-byte region [ffff888009009000, ffff88800900a000) [ 121.485971][ T848] [ 121.486072][ T848] The buggy address belongs to the physical page: [ 121.486278][ T848] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x9008 [ 121.486625][ T848] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 121.486991][ T848] flags: 0x80000000000040(head|node=0|zone=1) [ 121.487236][ T848] page_type: f5(slab) [ 121.487370][ T848] raw: 0080000000000040 ffff888001043700 ffffea00002eee10 ffffea000039cc10 [ 121.487681][ T848] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 121.487992][ T848] head: 0080000000000040 ffff888001043700 ffffea00002eee10 ffffea000039cc10 [ 121.488307][ T848] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 121.488735][ T848] head: 0080000000000003 ffffea0000240201 00000000ffffffff 00000000ffffffff [ 121.489161][ T848] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 121.489576][ T848] page dumped because: kasan: bad access detected [ 121.489791][ T848] [ 121.489881][ T848] Memory state around the buggy address: [ 121.490060][ T848] ffff888009009580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.490306][ T848] ffff888009009600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.490557][ T848] >ffff888009009680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.490817][ T848] ^ [ 121.491099][ T848] ffff888009009700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.491341][ T848] ffff888009009780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.491685][ T848] ================================================================== [ 121.492657][ T848] Disabling lock debugging due to kernel taint [ 121.492961][ T848] ------------[ cut here ]------------ [ 121.493134][ T848] refcount_t: underflow; use-after-free. [ 121.493343][ T848] WARNING: CPU: 1 PID: 848 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 121.493762][ T848] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth [ 121.494328][ T848] CPU: 1 UID: 0 PID: 848 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 121.494730][ T848] Tainted: [B]=BAD_PAGE [ 121.494873][ T848] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 121.495252][ T848] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 121.495490][ 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 45 b4 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 [ 121.496163][ T848] RSP: 0018:ffffc900011971f0 EFLAGS: 00010286 [ 121.496450][ T848] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 121.496830][ T848] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 121.497117][ T848] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff69be134 [ 121.497404][ T848] R10: 0000000000000003 R11: ffffc90001196d80 R12: 0000000000000001 [ 121.497673][ T848] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 121.497956][ T848] FS: 00007fe542dc7800(0000) GS:ffff888080072000(0000) knlGS:0000000000000000 [ 121.498447][ T848] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.498685][ T848] CR2: 00007f4073e7a000 CR3: 00000000105db002 CR4: 0000000000772ef0 [ 121.498973][ T848] PKRU: 55555554 [ 121.499141][ T848] Call Trace: [ 121.499401][ T848] [ 121.499487][ T848] netdev_run_todo+0x5f0/0xc60 [ 121.499679][ T848] ? dev_ingress_queue_create+0x190/0x190 [ 121.499863][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 121.500036][ T848] ? generic_xdp_install+0x410/0x410 [ 121.500229][ T848] ? vlan_vid_del+0x30c/0x5e0 [ 121.500418][ T848] rtnl_dellink+0x350/0xa30 [ 121.500680][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.500943][ T848] ? find_held_lock+0x2b/0x80 [ 121.501149][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.501350][ T848] ? find_held_lock+0x2b/0x80 [ 121.501542][ T848] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 121.501817][ T848] ? __lock_release+0x5d/0x170 [ 121.502024][ T848] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.502272][ T848] rtnetlink_rcv_msg+0x709/0xc00 [ 121.502454][ T848] ? rtnl_port_fill+0x850/0x850 [ 121.502736][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.502931][ T848] netlink_rcv_skb+0x121/0x340 [ 121.503145][ T848] ? rtnl_port_fill+0x850/0x850 [ 121.503363][ T848] ? netlink_ack+0xdd0/0xdd0 [ 121.503744][ T848] ? netlink_deliver_tap+0x13e/0x340 [ 121.503972][ T848] ? netlink_deliver_tap+0xc3/0x340 [ 121.504183][ T848] netlink_unicast+0x4aa/0x780 [ 121.504364][ T848] ? netlink_attachskb+0x810/0x810 [ 121.504617][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.504859][ T848] netlink_sendmsg+0x714/0xbd0 [ 121.505048][ T848] ? netlink_unicast+0x780/0x780 [ 121.505261][ T848] ? __import_iovec+0x230/0x3b0 [ 121.505501][ T848] ? netlink_unicast+0x780/0x780 [ 121.505775][ T848] ____sys_sendmsg+0x3dd/0x890 [ 121.505953][ T848] ? get_timestamp.constprop.0+0x380/0x380 [ 121.506185][ T848] ? __copy_msghdr+0x3c0/0x3c0 [ 121.506376][ T848] ___sys_sendmsg+0xed/0x170 [ 121.506626][ T848] ? kasan_record_aux_stack+0x8c/0xa0 [ 121.506806][ T848] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 121.507033][ T848] ? copy_msghdr_from_user+0x110/0x110 [ 121.507258][ T848] ? find_held_lock+0x2b/0x80 [ 121.507462][ T848] ? __lock_acquire+0x449/0x7e0 [ 121.507710][ T848] ? find_held_lock+0x2b/0x80 [ 121.507904][ T848] ? __virt_addr_valid+0x22a/0x450 [ 121.508124][ T848] ? __lock_release+0x5d/0x170 [ 121.508342][ T848] __sys_sendmsg+0x10b/0x1a0 [ 121.508718][ T848] ? __call_rcu_common.constprop.0+0x318/0x630 [ 121.509061][ T848] ? __sys_sendmsg_sock+0x20/0x20 [ 121.509346][ T848] ? rcu_is_watching+0x12/0xb0 [ 121.509765][ T848] do_syscall_64+0xc1/0xfd0 [ 121.510060][ T848] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.510410][ T848] RIP: 0033:0x7fe542f951d7 [ 121.510841][ 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 [ 121.511868][ T848] RSP: 002b:00007fffeaa61518 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.512293][ T848] RAX: ffffffffffffffda RBX: 00007fffeaa61c40 RCX: 00007fe542f951d7 [ 121.512745][ T848] RDX: 0000000000000000 RSI: 00007fffeaa61580 RDI: 0000000000000005 [ 121.513161][ T848] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 121.513611][ T848] R10: 00007fe542e91f60 R11: 0000000000000246 R12: 0000000000000002 [ 121.514036][ T848] R13: 00000000690deb31 R14: 0000000000499600 R15: 0000000000000000 [ 121.514531][ T848] [ 121.514764][ T848] irq event stamp: 42131 [ 121.515004][ T848] hardirqs last enabled at (42131): [] kasan_quarantine_put+0xf9/0x210 [ 121.515493][ T848] hardirqs last disabled at (42130): [] kasan_quarantine_put+0xac/0x210 [ 121.515962][ T848] softirqs last enabled at (41966): [] handle_softirqs+0x352/0x610 [ 121.516451][ T848] softirqs last disabled at (41957): [] irq_exit_rcu+0xab/0x100 [ 121.516948][ T848] ---[ end trace 0000000000000000 ]--- [ 121.713230][ T854] veth2.10: left allmulticast mode [ 121.713541][ T854] veth2: left allmulticast mode [ 121.713761][ T854] veth2.10: left promiscuous mode [ 121.713965][ T854] veth2: left promiscuous mode [ 121.714504][ T854] br10: port 2(veth2.10) entered disabled state [ 122.198701][ T864] veth1.11: left allmulticast mode [ 122.198933][ T864] veth1.11: left promiscuous mode [ 122.199450][ T864] br11: port 1(veth1.11) entered disabled state [ 122.502200][ T870] veth1.10: left allmulticast mode [ 122.502628][ T870] veth1: left allmulticast mode [ 122.502980][ T870] veth1.10: left promiscuous mode [ 122.503313][ T870] veth1: left promiscuous mode [ 122.504026][ T870] br10: port 1(veth1.10) entered disabled state