[ 21.910317][ T306] 8021q: 802.1Q VLAN Support v1.8 [ 27.445571][ T376] GACT probability NOT on [ 27.486622][ T374] tc (374) used greatest stack depth: 24448 bytes left [ 29.650603][ T411] br10: port 1(veth1.10) entered blocking state [ 29.651216][ T411] br10: port 1(veth1.10) entered disabled state [ 29.651810][ T411] veth1.10: entered allmulticast mode [ 29.652169][ T411] veth1: entered allmulticast mode [ 29.658080][ T411] veth1.10: entered promiscuous mode [ 29.658635][ T411] veth1: entered promiscuous mode [ 30.574556][ T428] br11: port 1(veth1.11) entered blocking state [ 30.577370][ T428] br11: port 1(veth1.11) entered disabled state [ 30.578091][ T428] veth1.11: entered allmulticast mode [ 30.583425][ T428] veth1.11: entered promiscuous mode [ 32.134649][ T458] br10: port 2(veth2.10) entered blocking state [ 32.135497][ T458] br10: port 2(veth2.10) entered disabled state [ 32.136353][ T458] veth2.10: entered allmulticast mode [ 32.136925][ T458] veth2: entered allmulticast mode [ 32.143241][ T458] veth2.10: entered promiscuous mode [ 32.143871][ T458] veth2: entered promiscuous mode [ 33.073369][ T475] br11: port 2(veth2.11) entered blocking state [ 33.074610][ T475] br11: port 2(veth2.11) entered disabled state [ 33.075114][ T475] veth2.11: entered allmulticast mode [ 33.079065][ T475] veth2.11: entered promiscuous mode [ 33.824674][ T487] br10: port 2(veth2.10) entered blocking state [ 33.825416][ T487] br10: port 2(veth2.10) entered forwarding state [ 33.826941][ T487] br10: port 1(veth1.10) entered blocking state [ 33.827501][ T487] br10: port 1(veth1.10) entered forwarding state [ 34.042114][ T492] br11: port 2(veth2.11) entered blocking state [ 34.042608][ T492] br11: port 2(veth2.11) entered forwarding state [ 34.043401][ T492] br11: port 1(veth1.11) entered blocking state [ 34.043845][ T492] br11: port 1(veth1.11) entered forwarding state [ 120.734808][ T838] br11: port 2(veth2.11) entered disabled state [ 120.735947][ T838] br11: port 1(veth1.11) entered disabled state [ 120.907313][ T840] br10: port 2(veth2.10) entered disabled state [ 120.909148][ T840] br10: port 1(veth1.10) entered disabled state [ 121.262031][ T844] veth2.11: left allmulticast mode [ 121.262526][ T844] veth2.11: left promiscuous mode [ 121.263673][ T844] br11: port 2(veth2.11) entered disabled state [ 121.433941][ T846] ================================================================== [ 121.434333][ T846] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0 [ 121.434765][ T846] Read of size 1 at addr ffff88800a1846ac by task ip/846 [ 121.435021][ T846] [ 121.435128][ T846] CPU: 2 UID: 0 PID: 846 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) [ 121.435164][ T846] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 121.435167][ T846] Call Trace: [ 121.435169][ T846] [ 121.435172][ T846] dump_stack_lvl+0x82/0xc0 [ 121.435182][ T846] print_address_description.constprop.0+0x2c/0x3a0 [ 121.435194][ T846] ? kobject_put+0xbb/0xd0 [ 121.435198][ T846] print_report+0xb4/0x270 [ 121.435201][ T846] ? kobject_put+0xbb/0xd0 [ 121.435204][ T846] ? kasan_addr_to_slab+0x21/0x70 [ 121.435208][ T846] ? kobject_put+0xbb/0xd0 [ 121.435211][ T846] kasan_report+0xca/0x100 [ 121.435216][ T846] ? kobject_put+0xbb/0xd0 [ 121.435225][ T846] kobject_put+0xbb/0xd0 [ 121.435230][ T846] netdev_run_todo+0x5f0/0xc60 [ 121.435237][ T846] ? dev_ingress_queue_create+0x190/0x190 [ 121.435242][ T846] ? vlan_vid_del+0x30c/0x5e0 [ 121.435249][ T846] ? generic_xdp_install+0x410/0x410 [ 121.435254][ T846] ? vlan_vid_del+0x30c/0x5e0 [ 121.435258][ T846] rtnl_dellink+0x350/0xa30 [ 121.435263][ T846] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.435283][ T846] ? find_held_lock+0x2b/0x80 [ 121.435298][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.435307][ T846] ? find_held_lock+0x2b/0x80 [ 121.435312][ T846] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 121.435316][ T846] ? __lock_release+0x5d/0x170 [ 121.435323][ T846] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.435327][ T846] rtnetlink_rcv_msg+0x709/0xc00 [ 121.435332][ T846] ? rtnl_port_fill+0x850/0x850 [ 121.435336][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.435345][ T846] netlink_rcv_skb+0x121/0x340 [ 121.435352][ T846] ? rtnl_port_fill+0x850/0x850 [ 121.435357][ T846] ? netlink_ack+0xdd0/0xdd0 [ 121.435370][ T846] ? netlink_deliver_tap+0x13e/0x340 [ 121.435374][ T846] ? netlink_deliver_tap+0xc3/0x340 [ 121.435379][ T846] netlink_unicast+0x4aa/0x780 [ 121.435384][ T846] ? netlink_attachskb+0x810/0x810 [ 121.435388][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.435394][ T846] netlink_sendmsg+0x714/0xbd0 [ 121.435398][ T846] ? netlink_unicast+0x780/0x780 [ 121.435402][ T846] ? __import_iovec+0x230/0x3b0 [ 121.435409][ T846] ? netlink_unicast+0x780/0x780 [ 121.435413][ T846] ____sys_sendmsg+0x3dd/0x890 [ 121.435420][ T846] ? get_timestamp.constprop.0+0x380/0x380 [ 121.435423][ T846] ? __copy_msghdr+0x3c0/0x3c0 [ 121.435431][ T846] ___sys_sendmsg+0xed/0x170 [ 121.435434][ T846] ? kasan_record_aux_stack+0x8c/0xa0 [ 121.435437][ T846] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 121.435450][ T846] ? copy_msghdr_from_user+0x110/0x110 [ 121.435455][ T846] ? find_held_lock+0x2b/0x80 [ 121.435459][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.435465][ T846] ? find_held_lock+0x2b/0x80 [ 121.435468][ T846] ? __virt_addr_valid+0x22a/0x450 [ 121.435482][ T846] ? __lock_release+0x5d/0x170 [ 121.435488][ T846] __sys_sendmsg+0x10b/0x1a0 [ 121.435491][ T846] ? __call_rcu_common.constprop.0+0x318/0x630 [ 121.435496][ T846] ? __sys_sendmsg_sock+0x20/0x20 [ 121.435503][ T846] ? rcu_is_watching+0x12/0xb0 [ 121.435508][ T846] do_syscall_64+0xc1/0xfd0 [ 121.435515][ T846] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.435519][ T846] RIP: 0033:0x7f888f1b51d7 [ 121.435526][ T846] 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 [ 121.435529][ T846] RSP: 002b:00007fff06d8d468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.435533][ T846] RAX: ffffffffffffffda RBX: 00007fff06d8db90 RCX: 00007f888f1b51d7 [ 121.435536][ T846] RDX: 0000000000000000 RSI: 00007fff06d8d4d0 RDI: 0000000000000005 [ 121.435539][ T846] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 121.435541][ T846] R10: 00007f888f0b1f60 R11: 0000000000000246 R12: 0000000000000002 [ 121.435545][ T846] R13: 00000000690deb12 R14: 0000000000499600 R15: 0000000000000000 [ 121.435555][ T846] [ 121.435557][ T846] [ 121.453136][ T846] Allocated by task 468: [ 121.453346][ T846] kasan_save_stack+0x24/0x40 [ 121.453644][ T846] kasan_save_track+0x14/0x30 [ 121.453921][ T846] __kasan_kmalloc+0x7b/0x90 [ 121.454194][ T846] __kvmalloc_node_noprof+0x2e5/0x8e0 [ 121.454452][ T846] alloc_netdev_mqs+0x7d/0x1370 [ 121.454737][ T846] rtnl_create_link+0xa9e/0xe20 [ 121.455041][ T846] rtnl_newlink_create+0x203/0x770 [ 121.455341][ T846] __rtnl_newlink+0x231/0xa30 [ 121.455634][ T846] rtnl_newlink+0x693/0xa60 [ 121.455917][ T846] rtnetlink_rcv_msg+0x709/0xc00 [ 121.456217][ T846] netlink_rcv_skb+0x121/0x340 [ 121.456514][ T846] netlink_unicast+0x4aa/0x780 [ 121.456808][ T846] netlink_sendmsg+0x714/0xbd0 [ 121.457100][ T846] ____sys_sendmsg+0x3dd/0x890 [ 121.457394][ T846] ___sys_sendmsg+0xed/0x170 [ 121.457694][ T846] __sys_sendmsg+0x10b/0x1a0 [ 121.457989][ T846] do_syscall_64+0xc1/0xfd0 [ 121.458278][ T846] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.458650][ T846] [ 121.458810][ T846] Freed by task 846: [ 121.459024][ T846] kasan_save_stack+0x24/0x40 [ 121.459321][ T846] kasan_save_track+0x14/0x30 [ 121.459607][ T846] __kasan_save_free_info+0x3b/0x60 [ 121.459911][ T846] __kasan_slab_free+0x3f/0x60 [ 121.460379][ T846] kfree+0x21d/0x540 [ 121.460596][ T846] device_release+0x9c/0x210 [ 121.460901][ T846] kobject_cleanup+0xfe/0x360 [ 121.461193][ T846] netdev_run_todo+0x81f/0xc60 [ 121.461527][ T846] rtnl_dellink+0x350/0xa30 [ 121.461826][ T846] rtnetlink_rcv_msg+0x709/0xc00 [ 121.462114][ T846] netlink_rcv_skb+0x121/0x340 [ 121.462418][ T846] netlink_unicast+0x4aa/0x780 [ 121.462700][ T846] netlink_sendmsg+0x714/0xbd0 [ 121.462996][ T846] ____sys_sendmsg+0x3dd/0x890 [ 121.463279][ T846] ___sys_sendmsg+0xed/0x170 [ 121.463619][ T846] __sys_sendmsg+0x10b/0x1a0 [ 121.463810][ T846] do_syscall_64+0xc1/0xfd0 [ 121.464000][ T846] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.464343][ T846] [ 121.464442][ T846] The buggy address belongs to the object at ffff88800a184000 [ 121.464442][ T846] which belongs to the cache kmalloc-4k of size 4096 [ 121.465096][ T846] The buggy address is located 1708 bytes inside of [ 121.465096][ T846] freed 4096-byte region [ffff88800a184000, ffff88800a185000) [ 121.465561][ T846] [ 121.465659][ T846] The buggy address belongs to the physical page: [ 121.465898][ T846] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa180 [ 121.466388][ T846] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 121.466784][ T846] flags: 0x80000000000040(head|node=0|zone=1) [ 121.467167][ T846] page_type: f5(slab) [ 121.467324][ T846] raw: 0080000000000040 ffff888001043700 ffffea00002c5c10 ffffea000029c010 [ 121.467683][ T846] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 121.468002][ T846] head: 0080000000000040 ffff888001043700 ffffea00002c5c10 ffffea000029c010 [ 121.468315][ T846] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000 [ 121.468615][ T846] head: 0080000000000003 ffffea0000286001 00000000ffffffff 00000000ffffffff [ 121.468917][ T846] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 121.469347][ T846] page dumped because: kasan: bad access detected [ 121.469563][ T846] [ 121.469649][ T846] Memory state around the buggy address: [ 121.469822][ T846] ffff88800a184580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.470114][ T846] ffff88800a184600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.470394][ T846] >ffff88800a184680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.470675][ T846] ^ [ 121.470939][ T846] ffff88800a184700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.471227][ T846] ffff88800a184780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 121.471496][ T846] ================================================================== [ 121.471961][ T846] Disabling lock debugging due to kernel taint [ 121.472235][ T846] ------------[ cut here ]------------ [ 121.472438][ T846] refcount_t: underflow; use-after-free. [ 121.472782][ T846] WARNING: CPU: 2 PID: 846 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0 [ 121.473143][ T846] Modules linked in: sch_tbf sch_prio bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth [ 121.473566][ T846] CPU: 2 UID: 0 PID: 846 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full) [ 121.473996][ T846] Tainted: [B]=BAD_PAGE [ 121.474156][ T846] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 121.474518][ T846] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0 [ 121.474800][ T846] 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 e5 a4 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 [ 121.475656][ T846] RSP: 0018:ffffc90000fef1f0 EFLAGS: 00010286 [ 121.475914][ T846] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 121.476254][ T846] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001 [ 121.476660][ T846] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff4afe134 [ 121.476972][ T846] R10: 0000000000000003 R11: ffffc90000feed80 R12: 0000000000000001 [ 121.477398][ T846] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100 [ 121.477685][ T846] FS: 00007f888efe7800(0000) GS:ffff88808f6f2000(0000) knlGS:0000000000000000 [ 121.478044][ T846] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 121.478407][ T846] CR2: 00005649bde71218 CR3: 000000000b068002 CR4: 0000000000772ef0 [ 121.478723][ T846] PKRU: 55555554 [ 121.478899][ T846] Call Trace: [ 121.479065][ T846] [ 121.479202][ T846] netdev_run_todo+0x5f0/0xc60 [ 121.479433][ T846] ? dev_ingress_queue_create+0x190/0x190 [ 121.479675][ T846] ? vlan_vid_del+0x30c/0x5e0 [ 121.479884][ T846] ? generic_xdp_install+0x410/0x410 [ 121.480219][ T846] ? vlan_vid_del+0x30c/0x5e0 [ 121.480436][ T846] rtnl_dellink+0x350/0xa30 [ 121.480668][ T846] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.480947][ T846] ? find_held_lock+0x2b/0x80 [ 121.481284][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.481494][ T846] ? find_held_lock+0x2b/0x80 [ 121.481703][ T846] ? rtnetlink_rcv_msg+0x6e6/0xc00 [ 121.481921][ T846] ? __lock_release+0x5d/0x170 [ 121.482229][ T846] ? valid_bridge_getlink_req.constprop.0+0x640/0x640 [ 121.482519][ T846] rtnetlink_rcv_msg+0x709/0xc00 [ 121.482737][ T846] ? rtnl_port_fill+0x850/0x850 [ 121.482947][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.483301][ T846] netlink_rcv_skb+0x121/0x340 [ 121.483523][ T846] ? rtnl_port_fill+0x850/0x850 [ 121.483759][ T846] ? netlink_ack+0xdd0/0xdd0 [ 121.483956][ T846] ? netlink_deliver_tap+0x13e/0x340 [ 121.484306][ T846] ? netlink_deliver_tap+0xc3/0x340 [ 121.484571][ T846] netlink_unicast+0x4aa/0x780 [ 121.484935][ T846] ? netlink_attachskb+0x810/0x810 [ 121.485259][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.485601][ T846] netlink_sendmsg+0x714/0xbd0 [ 121.485902][ T846] ? netlink_unicast+0x780/0x780 [ 121.486214][ T846] ? __import_iovec+0x230/0x3b0 [ 121.486532][ T846] ? netlink_unicast+0x780/0x780 [ 121.486879][ T846] ____sys_sendmsg+0x3dd/0x890 [ 121.487178][ T846] ? get_timestamp.constprop.0+0x380/0x380 [ 121.487600][ T846] ? __copy_msghdr+0x3c0/0x3c0 [ 121.487942][ T846] ___sys_sendmsg+0xed/0x170 [ 121.488425][ T846] ? kasan_record_aux_stack+0x8c/0xa0 [ 121.488777][ T846] ? __call_rcu_common.constprop.0+0xa8/0x630 [ 121.489338][ T846] ? copy_msghdr_from_user+0x110/0x110 [ 121.489869][ T846] ? find_held_lock+0x2b/0x80 [ 121.490181][ T846] ? __lock_acquire+0x449/0x7e0 [ 121.490536][ T846] ? find_held_lock+0x2b/0x80 [ 121.490882][ T846] ? __virt_addr_valid+0x22a/0x450 [ 121.491351][ T846] ? __lock_release+0x5d/0x170 [ 121.491667][ T846] __sys_sendmsg+0x10b/0x1a0 [ 121.491973][ T846] ? __call_rcu_common.constprop.0+0x318/0x630 [ 121.492325][ T846] ? __sys_sendmsg_sock+0x20/0x20 [ 121.492834][ T846] ? rcu_is_watching+0x12/0xb0 [ 121.493113][ T846] do_syscall_64+0xc1/0xfd0 [ 121.493407][ T846] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 121.493760][ T846] RIP: 0033:0x7f888f1b51d7 [ 121.494107][ T846] 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 [ 121.495276][ T846] RSP: 002b:00007fff06d8d468 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 121.495719][ T846] RAX: ffffffffffffffda RBX: 00007fff06d8db90 RCX: 00007f888f1b51d7 [ 121.496135][ T846] RDX: 0000000000000000 RSI: 00007fff06d8d4d0 RDI: 0000000000000005 [ 121.496738][ T846] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 121.497154][ T846] R10: 00007f888f0b1f60 R11: 0000000000000246 R12: 0000000000000002 [ 121.497577][ T846] R13: 00000000690deb12 R14: 0000000000499600 R15: 0000000000000000 [ 121.498232][ T846] [ 121.498510][ T846] irq event stamp: 42627 [ 121.498768][ T846] hardirqs last enabled at (42627): [] irqentry_exit+0x3b/0x80 [ 121.499456][ T846] hardirqs last disabled at (42626): [] handle_softirqs+0x47f/0x610 [ 121.500012][ T846] softirqs last enabled at (42060): [] handle_softirqs+0x352/0x610 [ 121.500672][ T846] softirqs last disabled at (42053): [] irq_exit_rcu+0xab/0x100 [ 121.501183][ T846] ---[ end trace 0000000000000000 ]--- [ 121.512255][ T846] ip (846) used greatest stack depth: 24232 bytes left [ 121.683081][ T852] veth2.10: left allmulticast mode [ 121.683463][ T852] veth2: left allmulticast mode [ 121.684852][ T852] veth2.10: left promiscuous mode [ 121.685358][ T852] veth2: left promiscuous mode [ 121.686192][ T852] br10: port 2(veth2.10) entered disabled state [ 122.202896][ T863] veth1.11: left allmulticast mode [ 122.203124][ T863] veth1.11: left promiscuous mode [ 122.203673][ T863] br11: port 1(veth1.11) entered disabled state [ 122.489234][ T869] veth1.10: left allmulticast mode [ 122.489526][ T869] veth1: left allmulticast mode [ 122.489756][ T869] veth1.10: left promiscuous mode [ 122.489991][ T869] veth1: left promiscuous mode [ 122.490501][ T869] br10: port 1(veth1.10) entered disabled state