[ 19.023293][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 23.562520][ T380] GACT probability NOT on [ 25.406691][ T416] br10: port 1(veth1.10) entered blocking state [ 25.407519][ T416] br10: port 1(veth1.10) entered disabled state [ 25.408070][ T416] veth1.10: entered allmulticast mode [ 25.408368][ T416] veth1: entered allmulticast mode [ 25.411820][ T416] veth1.10: entered promiscuous mode [ 25.412272][ T416] veth1: entered promiscuous mode [ 26.099852][ T433] br11: port 1(veth1.11) entered blocking state [ 26.100468][ T433] br11: port 1(veth1.11) entered disabled state [ 26.100892][ T433] veth1.11: entered allmulticast mode [ 26.104473][ T433] veth1.11: entered promiscuous mode [ 27.293690][ T463] br10: port 2(veth2.10) entered blocking state [ 27.294177][ T463] br10: port 2(veth2.10) entered disabled state [ 27.294604][ T463] veth2.10: entered allmulticast mode [ 27.294903][ T463] veth2: entered allmulticast mode [ 27.298414][ T463] veth2.10: entered promiscuous mode [ 27.298774][ T463] veth2: entered promiscuous mode [ 27.974565][ T480] br11: port 2(veth2.11) entered blocking state [ 27.975324][ T480] br11: port 2(veth2.11) entered disabled state [ 27.976062][ T480] veth2.11: entered allmulticast mode [ 27.982182][ T480] veth2.11: entered promiscuous mode [ 28.642113][ T492] br10: port 2(veth2.10) entered blocking state [ 28.642705][ T492] br10: port 2(veth2.10) entered forwarding state [ 28.643800][ T492] br10: port 1(veth1.10) entered blocking state [ 28.644265][ T492] br10: port 1(veth1.10) entered forwarding state [ 28.837289][ T497] br11: port 2(veth2.11) entered blocking state [ 28.837736][ T497] br11: port 2(veth2.11) entered forwarding state [ 28.838472][ T497] br11: port 1(veth1.11) entered blocking state [ 28.838914][ T497] br11: port 1(veth1.11) entered forwarding state [ 113.126896][ T843] br11: port 2(veth2.11) entered disabled state [ 113.127920][ T843] br11: port 1(veth1.11) entered disabled state [ 113.297302][ T845] br10: port 2(veth2.10) entered disabled state [ 113.299089][ T845] br10: port 1(veth1.10) entered disabled state [ 113.561977][ T849] veth2.11: left allmulticast mode [ 113.562346][ T849] veth2.11: left promiscuous mode [ 113.563154][ T849] br11: port 2(veth2.11) entered disabled state [ 113.701688][ T851] ================================================================== [ 113.702005][ T851] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 113.702258][ T851] Read of size 1 at addr ffff88800a4696ac by task ip/851 [ 113.702461][ T851] [ 113.702552][ T851] CPU: 0 UID: 0 PID: 851 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 113.702560][ T851] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 113.702562][ T851] Call Trace: [ 113.702566][ T851] [ 113.702568][ T851] dump_stack_lvl+0x82/0xc0 [ 113.702573][ T851] print_address_description.constprop.0+0x2c/0x3a0 [ 113.702579][ T851] ? kobject_put+0xbb/0xd0 [ 113.702585][ T851] print_report+0xb4/0x270 [ 113.702588][ T851] ? kobject_put+0xbb/0xd0 [ 113.702591][ T851] ? kasan_addr_to_slab+0x21/0x70 [ 113.702594][ T851] ? kobject_put+0xbb/0xd0 [ 113.702597][ T851] kasan_report+0xca/0x100 [ 113.702601][ T851] ? kobject_put+0xbb/0xd0 [ 113.702606][ T851] kobject_put+0xbb/0xd0 [ 113.702610][ T851] netdev_run_todo+0x5f0/0xc60 [ 113.702614][ T851] ? dev_ingress_queue_create+0x190/0x190 [ 113.702617][ T851] ? vlan_vid_del+0x30c/0x5e0 [ 113.702621][ T851] ? generic_xdp_install+0x410/0x410 [ 113.702625][ T851] ? vlan_vid_del+0x30c/0x5e0 [ 113.702629][ T851] rtnl_dellink+0x350/0xa30 [ 113.702634][ T851] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 113.702653][ T851] ? find_held_lock+0x2b/0x80 [ 113.702659][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.702666][ T851] ? find_held_lock+0x2b/0x80 [ 113.702669][ T851] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 113.702672][ T851] ? __lock_release+0x5d/0x170 [ 113.702676][ T851] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 113.702679][ T851] rtnetlink_rcv_msg+0x709/0xc00 [ 113.702683][ T851] ? rtnl_port_fill+0x850/0x850 [ 113.702686][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.702693][ T851] netlink_rcv_skb+0x121/0x340 [ 113.702697][ T851] ? rtnl_port_fill+0x850/0x850 [ 113.702701][ T851] ? netlink_ack+0xdd0/0xdd0 [ 113.702707][ T851] ? netlink_deliver_tap+0x13e/0x340 [ 113.702710][ T851] ? netlink_deliver_tap+0xc3/0x340 [ 113.702713][ T851] netlink_unicast+0x4aa/0x780 [ 113.702718][ T851] ? netlink_attachskb+0x810/0x810 [ 113.702722][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.702731][ T851] netlink_sendmsg+0x714/0xbd0 [ 113.702738][ T851] ? netlink_unicast+0x780/0x780 [ 113.702743][ T851] ? __import_iovec+0x230/0x3b0 [ 113.702749][ T851] ? netlink_unicast+0x780/0x780 [ 113.702753][ T851] ____sys_sendmsg+0x3dd/0x890 [ 113.702758][ T851] ? get_timestamp.constprop.0+0x380/0x380 [ 113.702761][ T851] ? __copy_msghdr+0x3c0/0x3c0 [ 113.702769][ T851] ___sys_sendmsg+0xed/0x170 [ 113.702772][ T851] ? kasan_record_aux_stack+0x8c/0xa0 [ 113.702775][ T851] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 113.702782][ T851] ? copy_msghdr_from_user+0x110/0x110 [ 113.702787][ T851] ? find_held_lock+0x2b/0x80 [ 113.702792][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.702797][ T851] ? find_held_lock+0x2b/0x80 [ 113.702801][ T851] ? __virt_addr_valid+0x22a/0x450 [ 113.702809][ T851] ? __lock_release+0x5d/0x170 [ 113.702816][ T851] __sys_sendmsg+0x10b/0x1a0 [ 113.702819][ T851] ? __call_rcu_common.constprop.0+0x318/0x630 [ 113.702823][ T851] ? __sys_sendmsg_sock+0x20/0x20 [ 113.702830][ T851] ? rcu_is_watching+0x12/0xb0 [ 113.702835][ T851] do_syscall_64+0xc1/0xfd0 [ 113.702840][ T851] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.702845][ T851] RIP: 0033:0x7fb01baa41d7 [ 113.702849][ T851] 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 [ 113.702852][ T851] RSP: 002b:00007ffd7d82df58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.702859][ T851] RAX: ffffffffffffffda RBX: 00007ffd7d82e680 RCX: 00007fb01baa41d7 [ 113.702861][ T851] RDX: 0000000000000000 RSI: 00007ffd7d82dfc0 RDI: 0000000000000005 [ 113.702864][ T851] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 113.702866][ T851] R10: 00007fb01b9a0f60 R11: 0000000000000246 R12: 0000000000000002 [ 113.702868][ T851] R13: 00000000690df66f R14: 0000000000499600 R15: 0000000000000000 [ 113.702874][ T851] [ 113.702875][ T851] [ 113.716059][ T851] Allocated by task 473: [ 113.716184][ T851] kasan_save_stack+0x24/0x40 [ 113.716357][ T851] kasan_save_track+0x14/0x30 [ 113.716627][ T851] __kasan_kmalloc+0x7b/0x90 [ 113.716793][ T851] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 113.716956][ T851] alloc_netdev_mqs+0x7d/0x1370 [ 113.717131][ T851] rtnl_create_link+0xa9e/0xe20 [ 113.717401][ T851] rtnl_newlink_create+0x203/0x770 [ 113.717573][ T851] __rtnl_newlink+0x231/0xa30 [ 113.717746][ T851] rtnl_newlink+0x693/0xa60 [ 113.717910][ T851] rtnetlink_rcv_msg+0x709/0xc00 [ 113.718087][ T851] netlink_rcv_skb+0x121/0x340 [ 113.718260][ T851] netlink_unicast+0x4aa/0x780 [ 113.718429][ T851] netlink_sendmsg+0x714/0xbd0 [ 113.718593][ T851] ____sys_sendmsg+0x3dd/0x890 [ 113.718873][ T851] ___sys_sendmsg+0xed/0x170 [ 113.719048][ T851] __sys_sendmsg+0x10b/0x1a0 [ 113.719210][ T851] do_syscall_64+0xc1/0xfd0 [ 113.719374][ T851] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.719678][ T851] [ 113.719773][ T851] Freed by task 851: [ 113.719894][ T851] kasan_save_stack+0x24/0x40 [ 113.720069][ T851] kasan_save_track+0x14/0x30 [ 113.720329][ T851] __kasan_save_free_info+0x3b/0x60 [ 113.720502][ T851] __kasan_slab_free+0x3f/0x60 [ 113.720668][ T851] kfree+0x21d/0x540 [ 113.720828][ T851] device_release+0x9c/0x210 [ 113.721004][ T851] kobject_cleanup+0xfe/0x360 [ 113.721190][ T851] netdev_run_todo+0x81f/0xc60 [ 113.721355][ T851] rtnl_dellink+0x350/0xa30 [ 113.721529][ T851] rtnetlink_rcv_msg+0x709/0xc00 [ 113.721696][ T851] netlink_rcv_skb+0x121/0x340 [ 113.722021][ T851] netlink_unicast+0x4aa/0x780 [ 113.722189][ T851] netlink_sendmsg+0x714/0xbd0 [ 113.722355][ T851] ____sys_sendmsg+0x3dd/0x890 [ 113.722520][ T851] ___sys_sendmsg+0xed/0x170 [ 113.722789][ T851] __sys_sendmsg+0x10b/0x1a0 [ 113.722950][ T851] do_syscall_64+0xc1/0xfd0 [ 113.723129][ T851] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.723433][ T851] [ 113.723520][ T851] The buggy address belongs to the object at ffff88800a469000 [ 113.723520][ T851] which belongs to the cache kmalloc-4k of size 4096 [ 113.723923][ T851] The buggy address is located 1708 bytes inside of [ 113.723923][ T851] freed 4096-byte region [ffff88800a469000, ffff88800a46a000) [ 113.724419][ T851] [ 113.724502][ T851] The buggy address belongs to the physical page: [ 113.724708][ T851] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa468 [ 113.725120][ T851] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 113.725369][ T851] flags: 0x80000000000040(head|node=0|zone=1) [ 113.725586][ T851] page_type: f5(slab) [ 113.725826][ T851] raw: 0080000000000040 ffff888001043700 ffffea0000135e10 ffffea0000279c10 [ 113.726130][ T851] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 113.726421][ T851] head: 0080000000000040 ffff888001043700 ffffea0000135e10 ffffea0000279c10 [ 113.726827][ T851] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 113.727129][ T851] head: 0080000000000003 ffffea0000291a01 00000000ffffffff 00000000ffffffff [ 113.727427][ T851] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 113.727720][ T851] page dumped because: kasan: bad access detected [ 113.728071][ T851] [ 113.728152][ T851] Memory state around the buggy address: [ 113.728317][ T851] ffff88800a469580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 113.728584][ T851] ffff88800a469600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 113.728928][ T851] >ffff88800a469680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 113.729192][ T851] ^ [ 113.729350][ T851] ffff88800a469700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 113.729610][ T851] ffff88800a469780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 113.729954][ T851] ================================================================== [ 113.730462][ T851] Disabling lock debugging due to kernel taint [ 113.730804][ T851] ------------[ cut here ]------------ [ 113.731068][ T851] refcount_t: underflow; use-after-free. [ 113.731359][ T851] WARNING: CPU: 3 PID: 851 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 113.731840][ T851] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth [ 113.732431][ T851] CPU: 3 UID: 0 PID: 851 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 113.732974][ T851] Tainted: [B]=BAD_PAGE [ 113.733191][ T851] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 113.733506][ T851] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 113.733862][ T851] 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 83 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 [ 113.734844][ T851] RSP: 0018:ffffc900011a71f0 EFLAGS: 00010286 [ 113.735205][ T851] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 113.735630][ T851] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 113.736047][ T851] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff08be134 [ 113.736462][ T851] R10: 0000000000000003 R11: ffffc900011a6d80 R12: 0000000000000001 [ 113.736870][ T851] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 113.737288][ T851] FS: 00007fb01b8d6800(0000) GS:ffff8880b0972000(0000) knlGS:0000000000000000 [ 113.737774][ T851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 113.738123][ T851] CR2: 00007f4f69f42000 CR3: 000000000aa54003 CR4: 0000000000772ef0 [ 113.738532][ T851] PKRU: 55555554 [ 113.738736][ T851] Call Trace: [ 113.738939][ T851] [ 113.739098][ T851] netdev_run_todo+0x5f0/0xc60 [ 113.739561][ T851] ? dev_ingress_queue_create+0x190/0x190 [ 113.739833][ T851] ? vlan_vid_del+0x30c/0x5e0 [ 113.740119][ T851] ? generic_xdp_install+0x410/0x410 [ 113.740391][ T851] ? vlan_vid_del+0x30c/0x5e0 [ 113.740851][ T851] rtnl_dellink+0x350/0xa30 [ 113.741135][ T851] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 113.741511][ T851] ? find_held_lock+0x2b/0x80 [ 113.741788][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.742085][ T851] ? find_held_lock+0x2b/0x80 [ 113.742371][ T851] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 113.742647][ T851] ? __lock_release+0x5d/0x170 [ 113.742916][ T851] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 113.743450][ T851] rtnetlink_rcv_msg+0x709/0xc00 [ 113.743725][ T851] ? rtnl_port_fill+0x850/0x850 [ 113.744012][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.744287][ T851] netlink_rcv_skb+0x121/0x340 [ 113.744702][ T851] ? rtnl_port_fill+0x850/0x850 [ 113.744997][ T851] ? netlink_ack+0xdd0/0xdd0 [ 113.745270][ T851] ? netlink_deliver_tap+0x13e/0x340 [ 113.745541][ T851] ? netlink_deliver_tap+0xc3/0x340 [ 113.745973][ T851] netlink_unicast+0x4aa/0x780 [ 113.746256][ T851] ? netlink_attachskb+0x810/0x810 [ 113.746534][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.746813][ T851] netlink_sendmsg+0x714/0xbd0 [ 113.747279][ T851] ? netlink_unicast+0x780/0x780 [ 113.747561][ T851] ? __import_iovec+0x230/0x3b0 [ 113.747836][ T851] ? netlink_unicast+0x780/0x780 [ 113.748302][ T851] ____sys_sendmsg+0x3dd/0x890 [ 113.748586][ T851] ? get_timestamp.constprop.0+0x380/0x380 [ 113.748926][ T851] ? __copy_msghdr+0x3c0/0x3c0 [ 113.749213][ T851] ___sys_sendmsg+0xed/0x170 [ 113.749486][ T851] ? kasan_record_aux_stack+0x8c/0xa0 [ 113.749932][ T851] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 113.750444][ T851] ? copy_msghdr_from_user+0x110/0x110 [ 113.750716][ T851] ? find_held_lock+0x2b/0x80 [ 113.751186][ T851] ? __lock_acquire+0x449/0x7e0 [ 113.751477][ T851] ? find_held_lock+0x2b/0x80 [ 113.751781][ T851] ? __virt_addr_valid+0x22a/0x450 [ 113.752262][ T851] ? __lock_release+0x5d/0x170 [ 113.752545][ T851] __sys_sendmsg+0x10b/0x1a0 [ 113.752820][ T851] ? __call_rcu_common.constprop.0+0x318/0x630 [ 113.753373][ T851] ? __sys_sendmsg_sock+0x20/0x20 [ 113.753664][ T851] ? rcu_is_watching+0x12/0xb0 [ 113.753932][ T851] do_syscall_64+0xc1/0xfd0 [ 113.754218][ T851] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 113.754750][ T851] RIP: 0033:0x7fb01baa41d7 [ 113.755234][ T851] 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 [ 113.756401][ T851] RSP: 002b:00007ffd7d82df58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 113.757204][ T851] RAX: ffffffffffffffda RBX: 00007ffd7d82e680 RCX: 00007fb01baa41d7 [ 113.757799][ T851] RDX: 0000000000000000 RSI: 00007ffd7d82dfc0 RDI: 0000000000000005 [ 113.758212][ T851] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 113.758638][ T851] R10: 00007fb01b9a0f60 R11: 0000000000000246 R12: 0000000000000002 [ 113.759064][ T851] R13: 00000000690df66f R14: 0000000000499600 R15: 0000000000000000 [ 113.759480][ T851] [ 113.759697][ T851] irq event stamp: 37417 [ 113.759902][ T851] hardirqs last enabled at (37417): [] kasan_quarantine_put+0xf9/0x210 [ 113.760402][ T851] hardirqs last disabled at (37416): [] kasan_quarantine_put+0xac/0x210 [ 113.761084][ T851] softirqs last enabled at (36258): [] unregister_netdevice_many_notify+0x711/0x1b30 [ 113.761634][ T851] softirqs last disabled at (36256): [] dev_mc_flush+0x54/0x90 [ 113.762315][ T851] ---[ end trace 0000000000000000 ]--- [ 113.950504][ T857] veth2.10: left allmulticast mode [ 113.950923][ T857] veth2: left allmulticast mode [ 113.951712][ T857] veth2.10: left promiscuous mode [ 113.952101][ T857] veth2: left promiscuous mode [ 113.952951][ T857] br10: port 2(veth2.10) entered disabled state [ 114.353656][ T867] veth1.11: left allmulticast mode [ 114.353873][ T867] veth1.11: left promiscuous mode [ 114.354351][ T867] br11: port 1(veth1.11) entered disabled state [ 114.618747][ T873] veth1.10: left allmulticast mode [ 114.618961][ T873] veth1: left allmulticast mode [ 114.619191][ T873] veth1.10: left promiscuous mode [ 114.619366][ T873] veth1: left promiscuous mode [ 114.619860][ T873] br10: port 1(veth1.10) entered disabled state