[ 14.621754][ T313] mpls_gso: MPLS GSO support [ 15.647849][ T325] Mirror/redirect action on [ 22.965380][ T65] ================================================================== [ 22.965628][ T65] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 22.965837][ T65] Read of size 8 at addr ffff88800d2100f8 by task kworker/u16:1/65 [ 22.966038][ T65] [ 22.966110][ T65] CPU: 1 UID: 0 PID: 65 Comm: kworker/u16:1 Not tainted 6.12.0-virtme #1 [ 22.966325][ T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.966495][ T65] Workqueue: netns cleanup_net [ 22.966636][ T65] Call Trace: [ 22.966739][ T65] [ 22.966815][ T65] dump_stack_lvl+0x82/0xd0 [ 22.966955][ T65] print_address_description.constprop.0+0x2c/0x3b0 [ 22.967127][ T65] ? cleanup_net+0xa5d/0xb90 [ 22.967266][ T65] print_report+0xb4/0x270 [ 22.967397][ T65] ? kasan_addr_to_slab+0x25/0x80 [ 22.967536][ T65] kasan_report+0xbd/0xf0 [ 22.967643][ T65] ? cleanup_net+0xa5d/0xb90 [ 22.967782][ T65] cleanup_net+0xa5d/0xb90 [ 22.967917][ T65] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 22.968054][ T65] ? __pfx_cleanup_net+0x10/0x10 [ 22.968193][ T65] ? trace_lock_acquire+0x148/0x1f0 [ 22.968332][ T65] ? lock_acquire+0x32/0xc0 [ 22.968463][ T65] ? process_one_work+0xe0b/0x16d0 [ 22.968605][ T65] process_one_work+0xe55/0x16d0 [ 22.968747][ T65] ? __pfx___lock_release+0x10/0x10 [ 22.968884][ T65] ? __pfx_process_one_work+0x10/0x10 [ 22.969020][ T65] ? assign_work+0x16c/0x240 [ 22.969162][ T65] worker_thread+0x58c/0xce0 [ 22.969304][ T65] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 22.969482][ T65] ? __pfx_worker_thread+0x10/0x10 [ 22.969622][ T65] ? __pfx_worker_thread+0x10/0x10 [ 22.969755][ T65] kthread+0x28a/0x350 [ 22.969857][ T65] ? __pfx_kthread+0x10/0x10 [ 22.969993][ T65] ret_from_fork+0x31/0x70 [ 22.970127][ T65] ? __pfx_kthread+0x10/0x10 [ 22.970267][ T65] ret_from_fork_asm+0x1a/0x30 [ 22.970407][ T65] [ 22.970511][ T65] [ 22.970578][ T65] Allocated by task 257: [ 22.970682][ T65] kasan_save_stack+0x24/0x50 [ 22.970816][ T65] kasan_save_track+0x14/0x30 [ 22.970953][ T65] __kasan_slab_alloc+0x59/0x70 [ 22.971085][ T65] kmem_cache_alloc_noprof+0x10b/0x350 [ 22.971226][ T65] copy_net_ns+0xc6/0x540 [ 22.971333][ T65] create_new_namespaces+0x35f/0x920 [ 22.971475][ T65] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 22.971620][ T65] ksys_unshare+0x2c4/0x6e0 [ 22.971754][ T65] __x64_sys_unshare+0x31/0x40 [ 22.971888][ T65] do_syscall_64+0xc1/0x1d0 [ 22.972021][ T65] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.972190][ T65] [ 22.972259][ T65] Freed by task 65: [ 22.972361][ T65] kasan_save_stack+0x24/0x50 [ 22.972494][ T65] kasan_save_track+0x14/0x30 [ 22.972628][ T65] kasan_save_free_info+0x3b/0x60 [ 22.972772][ T65] __kasan_slab_free+0x38/0x50 [ 22.972903][ T65] kmem_cache_free+0xf8/0x330 [ 22.973036][ T65] cleanup_net+0x5a8/0xb90 [ 22.973173][ T65] process_one_work+0xe55/0x16d0 [ 22.973308][ T65] worker_thread+0x58c/0xce0 [ 22.973441][ T65] kthread+0x28a/0x350 [ 22.973542][ T65] ret_from_fork+0x31/0x70 [ 22.973673][ T65] ret_from_fork_asm+0x1a/0x30 [ 22.973806][ T65] [ 22.973874][ T65] Last potentially related work creation: [ 22.974007][ T65] kasan_save_stack+0x24/0x50 [ 22.974142][ T65] __kasan_record_aux_stack+0x8e/0xa0 [ 22.974285][ T65] insert_work+0x34/0x230 [ 22.974386][ T65] __queue_work+0x5fd/0xa40 [ 22.974517][ T65] queue_delayed_work_on+0x8c/0xa0 [ 22.974649][ T65] __inet_insert_ifa+0x751/0xb10 [ 22.974788][ T65] inet_rtm_newaddr+0x833/0xbd0 [ 22.974925][ T65] rtnetlink_rcv_msg+0x712/0xc10 [ 22.975059][ T65] netlink_rcv_skb+0x130/0x360 [ 22.975196][ T65] netlink_unicast+0x44b/0x710 [ 22.975332][ T65] netlink_sendmsg+0x723/0xbe0 [ 22.975466][ T65] ____sys_sendmsg+0x7ac/0xa10 [ 22.975600][ T65] ___sys_sendmsg+0xee/0x170 [ 22.975734][ T65] __sys_sendmsg+0x109/0x1a0 [ 22.975872][ T65] do_syscall_64+0xc1/0x1d0 [ 22.976003][ T65] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.976175][ T65] [ 22.976246][ T65] Second to last potentially related work creation: [ 22.976416][ T65] kasan_save_stack+0x24/0x50 [ 22.976554][ T65] __kasan_record_aux_stack+0x8e/0xa0 [ 22.976691][ T65] insert_work+0x34/0x230 [ 22.976798][ T65] __queue_work+0x5fd/0xa40 [ 22.976926][ T65] queue_delayed_work_on+0x8c/0xa0 [ 22.977062][ T65] __inet_insert_ifa+0x751/0xb10 [ 22.977200][ T65] inet_rtm_newaddr+0x833/0xbd0 [ 22.977335][ T65] rtnetlink_rcv_msg+0x712/0xc10 [ 22.977469][ T65] netlink_rcv_skb+0x130/0x360 [ 22.977607][ T65] netlink_unicast+0x44b/0x710 [ 22.977743][ T65] netlink_sendmsg+0x723/0xbe0 [ 22.977894][ T65] ____sys_sendmsg+0x7ac/0xa10 [ 22.978031][ T65] ___sys_sendmsg+0xee/0x170 [ 22.978169][ T65] __sys_sendmsg+0x109/0x1a0 [ 22.978306][ T65] do_syscall_64+0xc1/0x1d0 [ 22.978438][ T65] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.978606][ T65] [ 22.978680][ T65] The buggy address belongs to the object at ffff88800d210040 [ 22.978680][ T65] which belongs to the cache net_namespace of size 6528 [ 22.979023][ T65] The buggy address is located 184 bytes inside of [ 22.979023][ T65] freed 6528-byte region [ffff88800d210040, ffff88800d2119c0) [ 22.979347][ T65] [ 22.979419][ T65] The buggy address belongs to the physical page: [ 22.979584][ T65] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd210 [ 22.979823][ T65] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 22.980021][ T65] flags: 0x80000000000040(head|node=0|zone=1) [ 22.980195][ T65] page_type: f5(slab) [ 22.980298][ T65] raw: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 22.980537][ T65] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 22.980771][ T65] head: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 22.981004][ T65] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 22.981239][ T65] head: 0080000000000003 ffffea0000348401 ffffffffffffffff 0000000000000000 [ 22.981473][ T65] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 22.981703][ T65] page dumped because: kasan: bad access detected [ 22.981871][ T65] [ 22.981937][ T65] Memory state around the buggy address: [ 22.982058][ T65] ffff88800d20ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.982254][ T65] ffff88800d210000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 22.982449][ T65] >ffff88800d210080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.982650][ T65] ^ [ 22.982845][ T65] ffff88800d210100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.983034][ T65] ffff88800d210180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.983227][ T65] ================================================================== [ 22.983437][ T65] Disabling lock debugging due to kernel taint