[ 59.097739][ T875] ip (875) used greatest stack depth: 22960 bytes left [ 63.407166][ T936] br1: port 1(vx1) entered blocking state [ 63.407525][ T936] br1: port 1(vx1) entered disabled state [ 63.407849][ T936] vx1: entered allmulticast mode [ 63.410246][ T936] vx1: entered promiscuous mode [ 63.411748][ T936] br1: port 1(vx1) entered blocking state [ 63.412071][ T936] br1: port 1(vx1) entered forwarding state [ 63.538801][ T937] br1: port 2(veth1) entered blocking state [ 63.539254][ T937] br1: port 2(veth1) entered disabled state [ 63.539663][ T937] veth1: entered allmulticast mode [ 63.542334][ T937] veth1: entered promiscuous mode [ 63.658784][ T150] br1: port 2(veth1) entered blocking state [ 63.659361][ T150] br1: port 2(veth1) entered forwarding state [ 63.938208][ T940] br1: port 3(veth2) entered blocking state [ 63.939693][ T940] br1: port 3(veth2) entered disabled state [ 63.939983][ T940] veth2: entered allmulticast mode [ 63.941956][ T940] veth2: entered promiscuous mode [ 64.046999][ T150] br1: port 3(veth2) entered blocking state [ 64.047303][ T150] br1: port 3(veth2) entered forwarding state [ 67.581882][ T987] br2: port 1(w1) entered blocking state [ 67.582190][ T987] br2: port 1(w1) entered disabled state [ 67.582462][ T987] w1: entered allmulticast mode [ 67.584975][ T987] w1: entered promiscuous mode [ 68.158130][ T993] br2: port 2(vx2) entered blocking state [ 68.158789][ T993] br2: port 2(vx2) entered disabled state [ 68.159054][ T993] vx2: entered allmulticast mode [ 68.161134][ T993] vx2: entered promiscuous mode [ 68.162101][ T993] br2: port 2(vx2) entered blocking state [ 68.162342][ T993] br2: port 2(vx2) entered forwarding state [ 68.859898][ T44] br2: port 1(w1) entered blocking state [ 68.860667][ T44] br2: port 1(w1) entered forwarding state [ 70.880093][ T1026] br2: port 1(w1) entered blocking state [ 70.880559][ T1026] br2: port 1(w1) entered disabled state [ 70.880950][ T1026] w1: entered allmulticast mode [ 70.884191][ T1026] w1: entered promiscuous mode [ 71.443870][ T1032] br2: port 2(vx2) entered blocking state [ 71.444149][ T1032] br2: port 2(vx2) entered disabled state [ 71.444398][ T1032] vx2: entered allmulticast mode [ 71.447453][ T1032] vx2: entered promiscuous mode [ 71.448372][ T1032] br2: port 2(vx2) entered blocking state [ 71.449013][ T1032] br2: port 2(vx2) entered forwarding state [ 72.137284][ T150] br2: port 1(w1) entered blocking state [ 72.137559][ T150] br2: port 1(w1) entered forwarding state [ 137.555058][ T1369] veth3: entered promiscuous mode [ 164.688300][ T1858] veth3: left promiscuous mode [ 188.004797][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.106470][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.207596][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.308917][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.410253][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.511220][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.612165][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.713143][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.814146][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 188.915104][ C2] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.099724][ C3] net_ratelimit: 3 callbacks suppressed [ 193.099733][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.200736][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.301627][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.402560][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.503581][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.604489][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 193.705388][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 251.773219][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 251.874671][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 251.975533][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.076366][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.177243][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.278143][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.379064][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.480031][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.580955][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 252.681799][ C3] vxlan: non-ECT from 2001:0db8:0004:0000:0000:0000:0000:0001 [ 254.250500][ T2827] vx1: left allmulticast mode [ 254.250729][ T2827] vx1: left promiscuous mode [ 254.251034][ T2827] br1: port 1(vx1) entered disabled state [ 259.625694][ T2832] br1: port 1(vx1) entered blocking state [ 259.626035][ T2832] br1: port 1(vx1) entered disabled state [ 259.626381][ T2832] vx1: entered allmulticast mode [ 259.630911][ T2832] vx1: entered promiscuous mode [ 259.631720][ T2832] br1: port 1(vx1) entered blocking state [ 259.631912][ T2832] br1: port 1(vx1) entered forwarding state [ 322.691640][ T3119] veth3: entered promiscuous mode [ 349.915626][ T3609] veth3: left promiscuous mode [ 350.674964][ T11] vx2: left allmulticast mode [ 350.675268][ T11] vx2: left promiscuous mode [ 350.675637][ T11] br2: port 2(vx2) entered disabled state [ 350.679285][ T11] w1: left allmulticast mode [ 350.679526][ T11] w1: left promiscuous mode [ 350.679845][ T11] br2: port 1(w1) entered disabled state [ 351.098850][ T11] vx2: left allmulticast mode [ 351.099095][ T11] vx2: left promiscuous mode [ 351.099417][ T11] br2: port 2(vx2) entered disabled state [ 351.102209][ T11] w1: left allmulticast mode [ 351.102468][ T11] w1: left promiscuous mode [ 351.102783][ T11] br2: port 1(w1) entered disabled state [ 351.397465][ T11] ================================================================== [ 351.397716][ T11] BUG: KASAN: slab-use-after-free in cleanup_net+0x932/0xa40 [ 351.397917][ T11] Read of size 8 at addr ffff888016011a38 by task kworker/u16:0/11 [ 351.398123][ T11] [ 351.398200][ T11] CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.12.0-virtme #1 [ 351.398424][ T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 351.398590][ T11] Workqueue: netns cleanup_net [ 351.398741][ T11] Call Trace: [ 351.398850][ T11] [ 351.398921][ T11] dump_stack_lvl+0x82/0xd0 [ 351.399061][ T11] print_address_description.constprop.0+0x2c/0x3b0 [ 351.399225][ T11] ? cleanup_net+0x932/0xa40 [ 351.399358][ T11] print_report+0xb4/0x270 [ 351.399491][ T11] ? kasan_addr_to_slab+0x25/0x80 [ 351.399631][ T11] kasan_report+0xbd/0xf0 [ 351.399732][ T11] ? cleanup_net+0x932/0xa40 [ 351.399871][ T11] cleanup_net+0x932/0xa40 [ 351.400004][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 351.400151][ T11] ? __pfx_cleanup_net+0x10/0x10 [ 351.400293][ T11] ? trace_lock_acquire+0x148/0x1f0 [ 351.400435][ T11] ? lock_acquire+0x32/0xc0 [ 351.400564][ T11] ? process_one_work+0xe0b/0x16d0 [ 351.400699][ T11] process_one_work+0xe55/0x16d0 [ 351.400836][ T11] ? __pfx___lock_release+0x10/0x10 [ 351.400968][ T11] ? __pfx_process_one_work+0x10/0x10 [ 351.401105][ T11] ? assign_work+0x16c/0x240 [ 351.401237][ T11] worker_thread+0x58c/0xce0 [ 351.401369][ T11] ? __pfx_worker_thread+0x10/0x10 [ 351.401501][ T11] kthread+0x28a/0x350 [ 351.401602][ T11] ? __pfx_kthread+0x10/0x10 [ 351.401733][ T11] ret_from_fork+0x31/0x70 [ 351.401868][ T11] ? __pfx_kthread+0x10/0x10 [ 351.402003][ T11] ret_from_fork_asm+0x1a/0x30 [ 351.402144][ T11] [ 351.402246][ T11] [ 351.402313][ T11] Allocated by task 1005: [ 351.402412][ T11] kasan_save_stack+0x24/0x50 [ 351.402546][ T11] kasan_save_track+0x14/0x30 [ 351.402679][ T11] __kasan_slab_alloc+0x59/0x70 [ 351.402809][ T11] kmem_cache_alloc_noprof+0x10b/0x350 [ 351.402943][ T11] copy_net_ns+0xc6/0x340 [ 351.403046][ T11] create_new_namespaces+0x35f/0x920 [ 351.403175][ T11] unshare_nsproxy_namespaces+0x8d/0x130 [ 351.403306][ T11] ksys_unshare+0x2a9/0x660 [ 351.403438][ T11] __x64_sys_unshare+0x31/0x40 [ 351.403569][ T11] do_syscall_64+0xc1/0x1d0 [ 351.403702][ T11] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 351.403868][ T11] [ 351.403934][ T11] Freed by task 11: [ 351.404037][ T11] kasan_save_stack+0x24/0x50 [ 351.404169][ T11] kasan_save_track+0x14/0x30 [ 351.404298][ T11] kasan_save_free_info+0x3b/0x60 [ 351.404429][ T11] __kasan_slab_free+0x38/0x50 [ 351.404565][ T11] kmem_cache_free+0xf8/0x330 [ 351.404697][ T11] cleanup_net+0x5a8/0xa40 [ 351.404851][ T11] process_one_work+0xe55/0x16d0 [ 351.404989][ T11] worker_thread+0x58c/0xce0 [ 351.405135][ T11] kthread+0x28a/0x350 [ 351.405241][ T11] ret_from_fork+0x31/0x70 [ 351.405387][ T11] ret_from_fork_asm+0x1a/0x30 [ 351.405516][ T11] [ 351.405587][ T11] Last potentially related work creation: [ 351.405721][ T11] kasan_save_stack+0x24/0x50 [ 351.405860][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 351.405993][ T11] insert_work+0x34/0x230 [ 351.406105][ T11] __queue_work+0x5fd/0xa40 [ 351.406235][ T11] call_timer_fn+0x13b/0x230 [ 351.406385][ T11] __run_timers+0x3ff/0x810 [ 351.406529][ T11] run_timer_softirq+0x154/0x1c0 [ 351.406669][ T11] handle_softirqs+0x1f6/0x5c0 [ 351.406800][ T11] __irq_exit_rcu+0xc4/0x100 [ 351.406937][ T11] irq_exit_rcu+0xe/0x20 [ 351.407046][ T11] sysvec_apic_timer_interrupt+0x78/0x90 [ 351.407186][ T11] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 351.407353][ T11] [ 351.407426][ T11] Second to last potentially related work creation: [ 351.407600][ T11] kasan_save_stack+0x24/0x50 [ 351.407750][ T11] __kasan_record_aux_stack+0x8e/0xa0 [ 351.407896][ T11] insert_work+0x34/0x230 [ 351.408007][ T11] __queue_work+0x5fd/0xa40 [ 351.408147][ T11] call_timer_fn+0x13b/0x230 [ 351.408282][ T11] __run_timers+0x3ff/0x810 [ 351.408416][ T11] run_timer_softirq+0x154/0x1c0 [ 351.408550][ T11] handle_softirqs+0x1f6/0x5c0 [ 351.408690][ T11] __irq_exit_rcu+0xc4/0x100 [ 351.408830][ T11] irq_exit_rcu+0xe/0x20 [ 351.408942][ T11] sysvec_apic_timer_interrupt+0x78/0x90 [ 351.409087][ T11] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 351.409258][ T11] [ 351.409324][ T11] The buggy address belongs to the object at ffff888016011980 [ 351.409324][ T11] which belongs to the cache net_namespace of size 6080 [ 351.409681][ T11] The buggy address is located 184 bytes inside of [ 351.409681][ T11] freed 6080-byte region [ffff888016011980, ffff888016013140) [ 351.410016][ T11] [ 351.410089][ T11] The buggy address belongs to the physical page: [ 351.410270][ T11] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880160132c0 pfn:0x16010 [ 351.410561][ T11] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 351.410760][ T11] flags: 0x80000000000240(workingset|head|node=0|zone=1) [ 351.410940][ T11] page_type: f5(slab) [ 351.411049][ T11] raw: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 351.411300][ T11] raw: ffff8880160132c0 0000000000050002 00000001f5000000 0000000000000000 [ 351.411535][ T11] head: 0080000000000240 ffff888001963240 ffff888001968088 ffff888001968088 [ 351.411791][ T11] head: ffff8880160132c0 0000000000050002 00000001f5000000 0000000000000000 [ 351.412054][ T11] head: 0080000000000003 ffffea0000580401 ffffffffffffffff 0000000000000000 [ 351.412298][ T11] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 351.412533][ T11] page dumped because: kasan: bad access detected [ 351.412701][ T11] [ 351.412769][ T11] Memory state around the buggy address: [ 351.412909][ T11] ffff888016011900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 351.413184][ T11] ffff888016011980: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 351.413375][ T11] >ffff888016011a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 351.413631][ T11] ^ [ 351.413795][ T11] ffff888016011a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 351.413989][ T11] ffff888016011b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 351.414244][ T11] ================================================================== [ 351.414514][ T11] Disabling lock debugging due to kernel taint [ 352.567349][ T3649] br1: port 3(veth2) entered disabled state [ 352.621402][ T3650] veth2: left allmulticast mode [ 352.621668][ T3650] veth2: left promiscuous mode [ 352.621961][ T3650] br1: port 3(veth2) entered disabled state [ 352.784160][ T3652] br1: port 2(veth1) entered disabled state [ 352.836060][ T3653] veth1: left allmulticast mode [ 352.836249][ T3653] veth1: left promiscuous mode [ 352.837117][ T3653] br1: port 2(veth1) entered disabled state [ 352.920603][ T3654] vx1: left allmulticast mode [ 352.920807][ T3654] vx1: left promiscuous mode [ 352.921079][ T3654] br1: port 1(vx1) entered disabled state