[ 37.875764][ T608] mpls_gso: MPLS GSO support [ 38.928274][ T620] Mirror/redirect action on [ 46.701857][ T11] ================================================================== [ 46.702154][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0xa5d/0xb90 [ 46.702405][ T11] Read of size 8 at addr ffff888008d2b6f8 by task kworker/u16:0/11 [ 46.702635][ T11] [ 46.702718][ T11] CPU: 0 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 46.702961][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 46.703161][ T11] Workqueue: netns cleanup_net [ 46.703327][ T11] Call Trace: [ 46.703441][ T11] [ 46.703535][ T11] dump_stack_lvl+0x82/0xd0 [ 46.703700][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 46.703894][ T11] ? cleanup_net+0xa5d/0xb90 [ 46.704049][ T11] print_report+0xb4/0x270 [ 46.704204][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 46.704358][ T11] kasan_report+0xbd/0xf0 [ 46.704478][ T11] ? cleanup_net+0xa5d/0xb90 [ 46.704633][ T11] cleanup_net+0xa5d/0xb90 [ 46.704784][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 46.704946][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 46.705103][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 46.705269][ T11] ? lock_acquire+0x32/0xc0 [ 46.705425][ T11] ? process_one_work+0xe0b/0x16d0 [ 46.705586][ T11] process_one_work+0xe55/0x16d0 [ 46.705746][ T11] ? __pfx___lock_release+0x10/0x10 [ 46.705896][ T11] ? __pfx_process_one_work+0x10/0x10 [ 46.706047][ T11] ? assign_work+0x16c/0x240 [ 46.706206][ T11] worker_thread+0x58c/0xce0 [ 46.706364][ T11] ? __pfx_worker_thread+0x10/0x10 [ 46.706528][ T11] kthread+0x28a/0x350 [ 46.706644][ T11] ? __pfx_kthread+0x10/0x10 [ 46.706797][ T11] ret_from_fork+0x31/0x70 [ 46.706953][ T11] ? __pfx_kthread+0x10/0x10 [ 46.707114][ T11] ret_from_fork_asm+0x1a/0x30 [ 46.707277][ T11] [ 46.707399][ T11] [ 46.707478][ T11] Allocated by task 552: [ 46.707596][ T11] kasan_save_stack+0x24/0x50 [ 46.707753][ T11] kasan_save_track+0x14/0x30 [ 46.707910][ T11] __kasan_slab_alloc+0x59/0x70 [ 46.708082][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 46.708234][ T11] copy_net_ns+0xc6/0x540 [ 46.708350][ T11] create_new_namespaces+0x35f/0x920 [ 46.708508][ T11] unshare_nsproxy_namespaces+0x8a/0x1b0 [ 46.708660][ T11] ksys_unshare+0x2c4/0x6e0 [ 46.708815][ T11] __x64_sys_unshare+0x31/0x40 [ 46.708966][ T11] do_syscall_64+0xc1/0x1d0 [ 46.709127][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.709317][ T11] [ 46.709413][ T11] Freed by task 11: [ 46.709524][ T11] kasan_save_stack+0x24/0x50 [ 46.709680][ T11] kasan_save_track+0x14/0x30 [ 46.709833][ T11] kasan_save_free_info+0x3b/0x60 [ 46.709986][ T11] __kasan_slab_free+0x38/0x50 [ 46.710137][ T11] kmem_cache_free+0xf8/0x330 [ 46.710293][ T11] cleanup_net+0x5a8/0xb90 [ 46.710445][ T11] process_one_work+0xe55/0x16d0 [ 46.710609][ T11] worker_thread+0x58c/0xce0 [ 46.710759][ T11] kthread+0x28a/0x350 [ 46.710877][ T11] ret_from_fork+0x31/0x70 [ 46.711042][ T11] ret_from_fork_asm+0x1a/0x30 [ 46.711188][ T11] [ 46.711269][ T11] Last potentially related work creation: [ 46.711427][ T11] kasan_save_stack+0x24/0x50 [ 46.711586][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 46.711738][ T11] insert_work+0x34/0x230 [ 46.711857][ T11] __queue_work+0x5fd/0xa40 [ 46.712012][ T11] queue_delayed_work_on+0x8c/0xa0 [ 46.712169][ T11] __inet_insert_ifa+0x751/0xb10 [ 46.712324][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 46.712483][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 46.712649][ T11] netlink_rcv_skb+0x130/0x360 [ 46.712807][ T11] netlink_unicast+0x44b/0x710 [ 46.712960][ T11] netlink_sendmsg+0x723/0xbe0 [ 46.713119][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 46.713272][ T11] ___sys_sendmsg+0xee/0x170 [ 46.713422][ T11] __sys_sendmsg+0x109/0x1a0 [ 46.713577][ T11] do_syscall_64+0xc1/0x1d0 [ 46.713734][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.713930][ T11] [ 46.714016][ T11] Second to last potentially related work creation: [ 46.714211][ T11] kasan_save_stack+0x24/0x50 [ 46.714370][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 46.714527][ T11] insert_work+0x34/0x230 [ 46.714645][ T11] __queue_work+0x5fd/0xa40 [ 46.714799][ T11] queue_delayed_work_on+0x8c/0xa0 [ 46.714950][ T11] __inet_insert_ifa+0x751/0xb10 [ 46.715112][ T11] inet_rtm_newaddr+0x833/0xbd0 [ 46.715267][ T11] rtnetlink_rcv_msg+0x712/0xc10 [ 46.715422][ T11] netlink_rcv_skb+0x130/0x360 [ 46.715578][ T11] netlink_unicast+0x44b/0x710 [ 46.715752][ T11] netlink_sendmsg+0x723/0xbe0 [ 46.715902][ T11] ____sys_sendmsg+0x7ac/0xa10 [ 46.716053][ T11] ___sys_sendmsg+0xee/0x170 [ 46.716210][ T11] __sys_sendmsg+0x109/0x1a0 [ 46.716369][ T11] do_syscall_64+0xc1/0x1d0 [ 46.716517][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.716709][ T11] [ 46.716786][ T11] The buggy address belongs to the object at ffff888008d2b640 [ 46.716786][ T11] which belongs to the cache net_namespace of size 6528 [ 46.717188][ T11] The buggy address is located 184 bytes inside of [ 46.717188][ T11] freed 6528-byte region [ffff888008d2b640, ffff888008d2cfc0) [ 46.717554][ T11] [ 46.717634][ T11] The buggy address belongs to the physical page: [ 46.717822][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8d28 [ 46.718087][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 46.718317][ T11] flags: 0x80000000000040(head|node=0|zone=1) [ 46.718521][ T11] page_type: f5(slab) [ 46.718642][ T11] raw: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 46.718912][ T11] raw: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 46.719183][ T11] head: 0080000000000040 ffff888001975240 ffff88800197a0a8 ffff88800197a0a8 [ 46.719452][ T11] head: 0000000000000000 0000000000040004 00000001f5000000 0000000000000000 [ 46.719725][ T11] head: 0080000000000003 ffffea0000234a01 ffffffffffffffff 0000000000000000 [ 46.719993][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 46.720263][ T11] page dumped because: kasan: bad access detected [ 46.720453][ T11] [ 46.720528][ T11] Memory state around the buggy address: [ 46.720679][ T11] ffff888008d2b580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 46.720903][ T11] ffff888008d2b600: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 46.721125][ T11] >ffff888008d2b680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.721371][ T11] ^ [ 46.721591][ T11] ffff888008d2b700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.721812][ T11] ffff888008d2b780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.722018][ T11] ================================================================== [ 46.722278][ T11] Disabling lock debugging due to kernel taint