make -C tools/testing/selftests TARGETS=net TEST_PROGS=pmtu.sh TEST_GEN_PRROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# timeout set to 6000
# selftests: net: pmtu.sh
# TEST: ipv4: PMTU exceptions [ OK ]
# TEST: ipv4: PMTU exceptions - nexthop objects [ OK ]
# TEST: ipv6: PMTU exceptions [ OK ]
# TEST: ipv6: PMTU exceptions - nexthop objects [ OK ]
# TEST: ICMPv4 with DSCP and ECN: PMTU exceptions [ OK ]
# TEST: ICMPv4 with DSCP and ECN: PMTU exceptions - nexthop objects [ OK ]
# TEST: UDPv4 with DSCP and ECN: PMTU exceptions [ OK ]
# TEST: UDPv4 with DSCP and ECN: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over vxlan4: PMTU exceptions [ OK ]
[ 644.998462][ T11] ==================================================================
[ 644.998988][ T11] BUG: KASAN: slab-use-after-free in vxlan_netdevice_event+0x32f/0x340 [vxlan]
[ 644.999523][ T11] Read of size 8 at addr ffff888004bf8bf0 by task kworker/u8:0/11
[ 644.999932][ T11]
[ 645.000065][ T11] CPU: 1 PID: 11 Comm: kworker/u8:0 Not tainted 6.8.0-rc2-virtme #1
[ 645.000489][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 645.001142][ T11] Workqueue: netns cleanup_net
[ 645.001411][ T11] Call Trace:
[ 645.001598][ T11]
[ 645.001756][ T11] dump_stack_lvl+0x64/0xb0
[ 645.002007][ T11] print_address_description.constprop.0+0x2c/0x3b0
[ 645.002363][ T11] ? vxlan_netdevice_event+0x32f/0x340 [vxlan]
[ 645.002706][ T11] print_report+0xb5/0x270
[ 645.002948][ T11] ? kasan_addr_to_slab+0x4e/0x90
[ 645.003216][ T11] kasan_report+0xbe/0xf0
[ 645.003454][ T11] ? vxlan_netdevice_event+0x32f/0x340 [vxlan]
[ 645.003811][ T11] vxlan_netdevice_event+0x32f/0x340 [vxlan]
[ 645.004146][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan]
[ 645.004509][ T11] ? nft_offload_netdev_event+0x158/0x3b0 [nf_tables]
[ 645.004964][ T11] ? mirred_device_event+0x185/0x210 [act_mirred]
[ 645.005372][ T11] notifier_call_chain+0x9a/0x290
[ 645.005650][ T11] unregister_netdevice_many_notify+0x55a/0x1180
[ 645.006040][ T11] ? mutex_is_locked+0x17/0x50
[ 645.006337][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 645.006742][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 645.007122][ T11] default_device_exit_batch+0x228/0x2c0
[ 645.007450][ T11] ? __pfx_default_device_exit_batch+0x10/0x10
[ 645.007798][ T11] ? mutex_is_locked+0x17/0x50
[ 645.008115][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210
[ 645.008491][ T11] cleanup_net+0x4f3/0xb50
[ 645.008767][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 645.009084][ T11] ? __pfx_cleanup_net+0x10/0x10
[ 645.009400][ T11] ? lock_acquire+0x1c1/0x220
[ 645.009651][ T11] ? process_one_work+0x714/0x1310
[ 645.009969][ T11] process_one_work+0x78c/0x1310
[ 645.010261][ T11] ? hlock_class+0x4e/0x130
[ 645.010495][ T11] ? __pfx_process_one_work+0x10/0x10
[ 645.010795][ T11] ? assign_work+0x16c/0x240
[ 645.011066][ T11] worker_thread+0x73d/0x1010
[ 645.011358][ T11] ? __pfx_worker_thread+0x10/0x10
[ 645.011622][ T11] kthread+0x28f/0x360
[ 645.011863][ T11] ? __pfx_kthread+0x10/0x10
[ 645.012122][ T11] ret_from_fork+0x31/0x70
[ 645.012354][ T11] ? __pfx_kthread+0x10/0x10
[ 645.012624][ T11] ret_from_fork_asm+0x1b/0x30
[ 645.012927][ T11]
[ 645.013088][ T11]
[ 645.013210][ T11] Allocated by task 11:
[ 645.013472][ T11] kasan_save_stack+0x24/0x50
[ 645.013745][ T11] kasan_save_track+0x14/0x30
[ 645.013986][ T11] __kasan_kmalloc+0x7f/0x90
[ 645.014265][ T11] __kmalloc_node_track_caller+0x1fb/0x440
[ 645.014618][ T11] kmalloc_reserve+0xbc/0x1f0
[ 645.014887][ T11] pskb_expand_head+0x1f4/0xff0
[ 645.015137][ T11] netlink_trim+0x198/0x200
[ 645.015391][ T11] netlink_broadcast_filtered+0xcb/0x340
[ 645.015707][ T11] nlmsg_notify+0x6e/0x1e0
[ 645.015977][ T11] rtmsg_ifinfo+0x5b/0xa0
[ 645.016204][ T11] dev_close_many+0x2bd/0x650
[ 645.016482][ T11] unregister_netdevice_many_notify+0x3d5/0x1180
[ 645.016817][ T11] default_device_exit_batch+0x228/0x2c0
[ 645.017146][ T11] cleanup_net+0x4f3/0xb50
[ 645.017376][ T11] process_one_work+0x78c/0x1310
[ 645.017680][ T11] worker_thread+0x73d/0x1010
[ 645.017951][ T11] kthread+0x28f/0x360
[ 645.018162][ T11] ret_from_fork+0x31/0x70
[ 645.018420][ T11] ret_from_fork_asm+0x1b/0x30
[ 645.018713][ T11]
[ 645.018837][ T11] Freed by task 11:
[ 645.019037][ T11] kasan_save_stack+0x24/0x50
[ 645.019323][ T11] kasan_save_track+0x14/0x30
[ 645.019604][ T11] kasan_save_free_info+0x3f/0x60
[ 645.019866][ T11] __kasan_slab_free+0xfc/0x1c0
[ 645.020132][ T11] kfree+0xf2/0x2d0
[ 645.020380][ T11] skb_release_data+0x56b/0x770
[ 645.020631][ T11] consume_skb+0xad/0x110
[ 645.020900][ T11] netlink_broadcast_filtered+0x224/0x340
[ 645.021238][ T11] nlmsg_notify+0x6e/0x1e0
[ 645.021467][ T11] rtmsg_ifinfo+0x5b/0xa0
[ 645.021706][ T11] dev_close_many+0x2bd/0x650
[ 645.021957][ T11] unregister_netdevice_many_notify+0x3d5/0x1180
[ 645.022290][ T11] default_device_exit_batch+0x228/0x2c0
[ 645.022587][ T11] cleanup_net+0x4f3/0xb50
[ 645.022823][ T11] process_one_work+0x78c/0x1310
[ 645.023083][ T11] worker_thread+0x73d/0x1010
[ 645.023337][ T11] kthread+0x28f/0x360
[ 645.023554][ T11] ret_from_fork+0x31/0x70
[ 645.023808][ T11] ret_from_fork_asm+0x1b/0x30
[ 645.024058][ T11]
[ 645.024187][ T11] The buggy address belongs to the object at ffff888004bf8800
[ 645.024187][ T11] which belongs to the cache kmalloc-2k of size 2048
[ 645.024927][ T11] The buggy address is located 1008 bytes inside of
[ 645.024927][ T11] freed 2048-byte region [ffff888004bf8800, ffff888004bf9000)
[ 645.025653][ T11]
[ 645.025782][ T11] The buggy address belongs to the physical page:
[ 645.026122][ T11] page:ffffea000012fe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888004bfe800 pfn:0x4bf8
[ 645.026771][ T11] head:ffffea000012fe00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 645.027292][ T11] flags: 0x80000000000a40(workingset|slab|head|node=0|zone=1)
[ 645.027746][ T11] page_type: 0xffffffff()
[ 645.028025][ T11] raw: 0080000000000a40 ffff888001043540 ffffea0000166c10 ffff8880010418d0
[ 645.028506][ T11] raw: ffff888004bfe800 0000000000050004 00000001ffffffff 0000000000000000
[ 645.028993][ T11] page dumped because: kasan: bad access detected
[ 645.029371][ T11]
[ 645.029520][ T11] Memory state around the buggy address:
[ 645.029829][ T11] ffff888004bf8a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 645.030314][ T11] ffff888004bf8b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 645.030781][ T11] >ffff888004bf8b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 645.031235][ T11] ^
[ 645.031660][ T11] ffff888004bf8c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 645.032145][ T11] ffff888004bf8c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 645.032588][ T11] ==================================================================
[ 645.033906][ T11] Disabling lock debugging due to kernel taint
[ 645.034317][ T11] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 645.035004][ T11] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[ 645.035541][ T11] CPU: 1 PID: 11 Comm: kworker/u8:0 Tainted: G B 6.8.0-rc2-virtme #1
[ 645.036092][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 645.036809][ T11] Workqueue: netns cleanup_net
[ 645.037103][ T11] RIP: 0010:vxlan_netdevice_event+0x19e/0x340 [vxlan]
[ 645.037507][ T11] Code: 00 00 00 48 b9 00 00 00 00 00 fc ff df 49 89 c0 48 89 44 24 08 49 c1 e8 03 4d 8d 24 08 eb 2c 48 8d 53 30 48 89 d0 48 c1 e8 03 <80> 3c 08 00 0f 85 e0 00 00 00 48 8b 43 30 49 89 dd 48 83 e8 30 49
[ 645.038663][ T11] RSP: 0018:ffffc900000bf980 EFLAGS: 00010246
[ 645.039027][ T11] RAX: 0000000000000000 RBX: ffffffffffffffd1 RCX: dffffc0000000000
[ 645.039493][ T11] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888004bf8c44
[ 645.039950][ T11] RBP: 1ffff92000017f33 R08: 1ffff1100160321a R09: ffffc900000bf9b8
[ 645.040423][ T11] R10: ffffffffa9034a07 R11: 205d313154202020 R12: ffffed100160321a
[ 645.040898][ T11] R13: ffff888004bf8bc0 R14: ffff888009d81000 R15: ffff88800b019000
[ 645.041370][ T11] FS: 0000000000000000(0000) GS:ffff88802ea00000(0000) knlGS:0000000000000000
[ 645.041926][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 645.042283][ T11] CR2: 00007f563e468000 CR3: 000000003c134001 CR4: 0000000000770ef0
[ 645.042718][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 645.043142][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 645.043584][ T11] PKRU: 55555554
[ 645.043783][ T11] Call Trace:
[ 645.043957][ T11]
[ 645.044127][ T11] ? die_addr+0x41/0xa0
[ 645.044358][ T11] ? exc_general_protection+0x149/0x220
[ 645.044667][ T11] ? asm_exc_general_protection+0x26/0x30
[ 645.044989][ T11] ? vxlan_netdevice_event+0x19e/0x340 [vxlan]
[ 645.045325][ T11] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan]
[ 645.045673][ T11] ? nft_offload_netdev_event+0x158/0x3b0 [nf_tables]
[ 645.046067][ T11] ? mirred_device_event+0x185/0x210 [act_mirred]
[ 645.046433][ T11] notifier_call_chain+0x9a/0x290
[ 645.046771][ T11] unregister_netdevice_many_notify+0x55a/0x1180
[ 645.047176][ T11] ? mutex_is_locked+0x17/0x50
[ 645.047456][ T11] ? __pfx_unregister_netdevice_many_notify+0x10/0x10
[ 645.047838][ T11] ? __pfx_unregister_netdevice_queue+0x10/0x10
[ 645.048192][ T11] default_device_exit_batch+0x228/0x2c0
[ 645.048511][ T11] ? __pfx_default_device_exit_batch+0x10/0x10
[ 645.048903][ T11] ? mutex_is_locked+0x17/0x50
[ 645.049182][ T11] ? nexthop_net_exit_batch_rtnl+0x83/0x210
[ 645.049488][ T11] cleanup_net+0x4f3/0xb50
[ 645.049722][ T11] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 645.050011][ T11] ? __pfx_cleanup_net+0x10/0x10
[ 645.050268][ T11] ? lock_acquire+0x1c1/0x220
[ 645.050512][ T11] ? process_one_work+0x714/0x1310
[ 645.050781][ T11] process_one_work+0x78c/0x1310
[ 645.051040][ T11] ? hlock_class+0x4e/0x130
[ 645.051274][ T11] ? __pfx_process_one_work+0x10/0x10
[ 645.051552][ T11] ? assign_work+0x16c/0x240
[ 645.051789][ T11] worker_thread+0x73d/0x1010
[ 645.052035][ T11] ? __pfx_worker_thread+0x10/0x10
[ 645.052344][ T11] kthread+0x28f/0x360
[ 645.052594][ T11] ? __pfx_kthread+0x10/0x10
[ 645.052862][ T11] ret_from_fork+0x31/0x70
[ 645.053129][ T11] ? __pfx_kthread+0x10/0x10
[ 645.053366][ T11] ret_from_fork_asm+0x1b/0x30
[ 645.053628][ T11]
[ 645.053790][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel act_csum act_pedit cls_flower sch_prio xt_mark nft_compat nf_tables libcrc32c sch_ingress act_mirred cls_basic sch_fq_codel
[ 645.054906][ T11] ---[ end trace 0000000000000000 ]---
[ 645.055191][ T11] RIP: 0010:vxlan_netdevice_event+0x19e/0x340 [vxlan]
[ 645.055552][ T11] Code: 00 00 00 48 b9 00 00 00 00 00 fc ff df 49 89 c0 48 89 44 24 08 49 c1 e8 03 4d 8d 24 08 eb 2c 48 8d 53 30 48 89 d0 48 c1 e8 03 <80> 3c 08 00 0f 85 e0 00 00 00 48 8b 43 30 49 89 dd 48 83 e8 30 49
[ 645.056549][ T11] RSP: 0018:ffffc900000bf980 EFLAGS: 00010246
[ 645.056871][ T11] RAX: 0000000000000000 RBX: ffffffffffffffd1 RCX: dffffc0000000000
[ 645.057278][ T11] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888004bf8c44
[ 645.057682][ T11] RBP: 1ffff92000017f33 R08: 1ffff1100160321a R09: ffffc900000bf9b8
[ 645.058093][ T11] R10: ffffffffa9034a07 R11: 205d313154202020 R12: ffffed100160321a
[ 645.058499][ T11] R13: ffff888004bf8bc0 R14: ffff888009d81000 R15: ffff88800b019000
[ 645.058917][ T11] FS: 0000000000000000(0000) GS:ffff88802ea00000(0000) knlGS:0000000000000000
[ 645.059371][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 645.059731][ T11] CR2: 00007f563e468000 CR3: 000000003c134001 CR4: 0000000000770ef0
[ 645.060160][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 645.060576][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 645.060997][ T11] PKRU: 55555554
[ 645.061187][ T11] Kernel panic - not syncing: Fatal exception
[ 645.061601][ T11] Kernel Offset: 0x22600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 645.062210][ T11] ---[ end Kernel panic - not syncing: Fatal exception ]---
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