T68] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 29.060645][ T68] ? __pfx_cleanup_net+0x10/0x10 [ 29.060767][ T68] ? trace_lock_acquire+0x148/0x1f0 [ 29.060892][ T68] ? lock_acquire+0x32/0xc0 [ 29.061015][ T68] ? process_one_work+0xe0b/0x16d0 [ 29.061140][ T68] process_one_work+0xe55/0x16d0 [ 29.061265][ T68] ? __pfx___lock_release+0x10/0x10 [ 29.061391][ T68] ? __pfx_process_one_work+0x10/0x10 [ 29.061517][ T68] ? assign_work+0x16c/0x240 [ 29.061641][ T68] worker_thread+0x58c/0xce0 [ 29.061769][ T68] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.061929][ T68] ? __pfx_worker_thread+0x10/0x10 [ 29.062054][ T68] ? __pfx_worker_thread+0x10/0x10 [ 29.062175][ T68] kthread+0x28a/0x350 [ 29.062268][ T68] ? __pfx_kthread+0x10/0x10 [ 29.062388][ T68] ret_from_fork+0x31/0x70 [ 29.062509][ T68] ? __pfx_kthread+0x10/0x10 [ 29.062629][ T68] ret_from_fork_asm+0x1a/0x30 [ 29.062756][ T68] </TASK> [ 29.062861][ T68] [ 29.062925][ T68] Allocated by task 249: [ 29.063020][ T68] kasan_save_stack+0x24/0x50 [ 29.063146][ T68] kasan_save_track+0x14/0x30 [ 29.063265][ T68] __kasan_slab_alloc+0x59/0x70 [ 29.063385][ T68] kmem_cache_alloc_noprof+0x10b/0x350 [ 29.063509][ T68] copy_net_ns+0xc6/0x340 [ 29.063601][ T68] create_new_namespaces+0x35f/0x920 [ 29.063726][ T68] unshare_nsproxy_namespaces+0x8d/0x130 [ 29.063847][ T68] ksys_unshare+0x2a9/0x660 [ 29.063971][ T68] __x64_sys_unshare+0x31/0x40 [ 29.064091][ T68] do_syscall_64+0xc1/0x1d0 [ 29.064213][ T68] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.064362][ T68] [ 29.064426][ T68] Freed by task 68: [ 29.064529][ T68] kasan_save_stack+0x24/0x50 [ 29.064657][ T68] kasan_save_track+0x14/0x30 [ 29.064779][ T68] kasan_save_free_info+0x3b/0x60 [ 29.064904][ T68] __kasan_slab_free+0x38/0x50 [ 29.065024][ T68] kmem_cache_free+0xf8/0x330 [ 29.065143][ T68] cleanup_net+0x5a8/0xa40 [ 29.065263][ T68] process_one_work+0xe55/0x16d0 [ 29.065383][ T68] worker_thread+0x58c/0xce0 [ 29.065504][ T68] kthread+0x28a/0x350 [ 29.065595][ T68] ret_from_fork+0x31/0x70 [ 29.065718][ T68] ret_from_fork_asm+0x1a/0x30 [ 29.065839][ T68] [ 29.065902][ T68] Last potentially related work creation: [ 29.066022][ T68] kasan_save_stack+0x24/0x50 [ 29.066145][ T68] __kasan_record_aux_stack+0x8e/0xa0 [ 29.066265][ T68] insert_work+0x34/0x230 [ 29.066357][ T68] __queue_work+0x5fd/0xa40 [ 29.066479][ T68] queue_delayed_work_on+0x8c/0xa0 [ 29.066602][ T68] __inet_insert_ifa+0x751/0xb10 [ 29.066725][ T68] inet_rtm_newaddr+0x833/0xbd0 [ 29.066846][ T68] rtnetlink_rcv_msg+0x712/0xc10 [ 29.066969][ T68] netlink_rcv_skb+0x130/0x360 [ 29.067091][ T68] netlink_unicast+0x44b/0x710 [ 29.067211][ T68] netlink_sendmsg+0x723/0xbe0 [ 29.067334][ T68] ____sys_sendmsg+0x7ac/0xa10 [ 29.067456][ T68] ___sys_sendmsg+0xee/0x170 [ 29.067582][ T68] __sys_sendmsg+0x109/0x1a0 [ 29.067703][ T68] do_syscall_64+0xc1/0x1d0 [ 29.067825][ T68] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.067976][ T68] [ 29.068039][ T68] Second to last potentially related work creation: [ 29.068186][ T68] kasan_save_stack+0x24/0x50 [ 29.068312][ T68] __kasan_record_aux_stack+0x8e/0xa0 [ 29.068436][ T68] insert_work+0x34/0x230 [ 29.068527][ T68] __queue_work+0x5fd/0xa40 [ 29.068647][ T68] queue_delayed_work_on+0x8c/0xa0 [ 29.068767][ T68] __inet_insert_ifa+0x751/0xb10 [ 29.068891][ T68] inet_rtm_newaddr+0x833/0xbd0 [ 29.069011][ T68] rtnetlink_rcv_msg+0x712/0xc10 [ 29.069131][ T68] netlink_rcv_skb+0x130/0x360 [ 29.069255][ T68] netlink_unicast+0x44b/0x710 [ 29.069381][ T68] netlink_sendmsg+0x723/0xbe0 [ 29.069500][ T68] ____sys_sendmsg+0x7ac/0xa10 [ 29.069623][ T68] ___sys_sendmsg+0xee/0x170 [ 29.069746][ T68] __sys_sendmsg+0x109/0x1a0 [ 29.069869][ T68] do_syscall_64+0xc1/0x1d0 [ 29.069992][ T68] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.070144][ T68] [ 29.070206][ T68] The buggy address belongs to the object at ffff88800a650040 [ 29.070206][ T68] which belongs to the cache net_namespace of size 6592 [ 29.070528][ T68] The buggy address is located 184 bytes inside of [ 29.070528][ T68] freed 6592-byte region [ffff88800a650040, ffff88800a651a00) [ 29.070820][ T68] [ 29.070883][ T68] The buggy address belongs to the physical page: [ 29.071030][ T68] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800a6536c0 pfn:0xa650 [ 29.071276][ T68] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 29.071458][ T68] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 29.071616][ T68] page_type: f5(slab) [ 29.071714][ T68] raw: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 29.071934][ T68] raw: ffff88800a6536c0 0000000000040002 00000001f5000000 0000000000000000 [ 29.072148][ T68] head: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 29.072364][ T68] head: ffff88800a6536c0 0000000000040002 00000001f5000000 0000000000000000 [ 29.072577][ T68] head: 0080000000000003 ffffea0000299401 ffffffffffffffff 0000000000000000 [ 29.072791][ T68] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 29.073117][ T68] page dumped because: kasan: bad access detected [ 29.073265][ T68] [ 29.073327][ T68] Memory state around the buggy address: [ 29.073445][ T68] ffff88800a64ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.073621][ T68] ffff88800a650000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 29.073799][ T68] >ffff88800a650080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.073976][ T68] ^ [ 29.074150][ T68] ffff88800a650100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.074326][ T68] ffff88800a650180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.074503][ T68] ================================================================== [ 29.074700][ T68] Disabling lock debugging due to kernel taint [ 36.568223][ T441] ipip: IPv4 and MPLS over IPv4 tunneling driver