make -C tools/testing/selftests TARGETS=net TEST_PROGS=test_vxlan_nolocalbbypass.sh TEST_GEN_PROGS="" 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: test_vxlan_nolocalbypass.sh [ 1188.907178][ T9156] GACT probability NOT on # TEST: localbypass enabled [ OK ] # TEST: Packet received by local VXLAN device - localbypass [ OK ] # TEST: localbypass disabled [ OK ] # TEST: Packet not received by local VXLAN device - nolocalbypass [ OK ] # TEST: localbypass enabled [ OK ] # TEST: Packet received by local VXLAN device - localbypass [ OK ] [ 1192.852010][ T71] ================================================================== [ 1192.852649][ T71] BUG: KASAN: use-after-free in vxlan_netdevice_event+0x32f/0x340 [vxlan] [ 1192.853316][ T71] Read of size 8 at addr ffff88800b658bf0 by task kworker/u8:1/71 [ 1192.853886][ T71] [ 1192.854081][ T71] CPU: 3 PID: 71 Comm: kworker/u8:1 Not tainted 6.8.0-rc2-virtme #1 [ 1192.854682][ T71] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1192.855592][ T71] Workqueue: netns cleanup_net [ 1192.855970][ T71] Call Trace: [ 1192.856220][ T71] [ 1192.856454][ T71] dump_stack_lvl+0x64/0xb0 [ 1192.856808][ T71] print_address_description.constprop.0+0x2c/0x3b0 [ 1192.857402][ T71] ? vxlan_netdevice_event+0x32f/0x340 [vxlan] [ 1192.857980][ T71] print_report+0xb5/0x270 [ 1192.858362][ T71] ? kasan_addr_to_slab+0x4e/0x90 [ 1192.858765][ T71] kasan_report+0xbe/0xf0 [ 1192.859136][ T71] ? vxlan_netdevice_event+0x32f/0x340 [vxlan] [ 1192.859708][ T71] vxlan_netdevice_event+0x32f/0x340 [vxlan] [ 1192.860201][ T71] ? __pfx_vxlan_netdevice_event+0x10/0x10 [vxlan] [ 1192.860793][ T71] ? netconsole_netdev_event+0x1b4/0x300 [ 1192.861258][ T71] notifier_call_chain+0x9a/0x290 [ 1192.861683][ T71] unregister_netdevice_many_notify+0x55a/0x1180 [ 1192.862209][ T71] ? mutex_is_locked+0x17/0x50 [ 1192.862595][ T71] ? mutex_is_locked+0x17/0x50 [ 1192.862996][ T71] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 1192.863533][ T71] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 1192.864035][ T71] default_device_exit_batch+0x228/0x2c0 [ 1192.864499][ T71] ? __pfx_default_device_exit_batch+0x10/0x10 [ 1192.865037][ T71] ? mutex_is_locked+0x17/0x50 [ 1192.865414][ T71] ? nexthop_net_exit_batch_rtnl+0x83/0x210 [ 1192.865928][ T71] cleanup_net+0x4f3/0xb50 [ 1192.866305][ T71] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1192.866758][ T71] ? __pfx_cleanup_net+0x10/0x10 [ 1192.867166][ T71] ? lock_acquire+0x1c1/0x220 [ 1192.867541][ T71] ? process_one_work+0x714/0x1310 [ 1192.867969][ T71] process_one_work+0x78c/0x1310 [ 1192.868366][ T71] ? hlock_class+0x4e/0x130 [ 1192.868745][ T71] ? __pfx_process_one_work+0x10/0x10 [ 1192.869184][ T71] ? assign_work+0x16c/0x240 [ 1192.869547][ T71] worker_thread+0x73d/0x1010 [ 1192.869937][ T71] ? lockdep_hardirqs_on_prepare.part.0+0x1b1/0x370 [ 1192.870521][ T71] ? __pfx_worker_thread+0x10/0x10 [ 1192.870928][ T71] ? __pfx_worker_thread+0x10/0x10 [ 1192.871375][ T71] kthread+0x28f/0x360 [ 1192.871691][ T71] ? __pfx_kthread+0x10/0x10 [ 1192.872047][ T71] ret_from_fork+0x31/0x70 [ 1192.872395][ T71] ? __pfx_kthread+0x10/0x10 [ 1192.872751][ T71] ret_from_fork_asm+0x1b/0x30 [ 1192.873125][ T71] [ 1192.873361][ T71] [ 1192.873541][ T71] The buggy address belongs to the physical page: [ 1192.874028][ T71] page:ffffea00002d9600 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xb658 [ 1192.874804][ T71] flags: 0x80000000000000(node=0|zone=1) [ 1192.875226][ T71] page_type: 0xffffffff() [ 1192.875552][ T71] raw: 0080000000000000 ffffea0000166608 ffff888036001c38 0000000000000000 [ 1192.876173][ T71] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 1192.876780][ T71] page dumped because: kasan: bad access detected [ 1192.877303][ T71] [ 1192.877493][ T71] Memory state around the buggy address: [ 1192.877920][ T71] ffff88800b658a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1192.878584][ T71] ffff88800b658b00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1192.879223][ T71] >ffff88800b658b80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1192.879868][ T71] ^ [ 1192.880477][ T71] ffff88800b658c00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1192.881143][ T71] ffff88800b658c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1192.881773][ T71] ================================================================== [ 1192.882488][ T71] Disabling lock debugging due to kernel taint # # Tests passed: 6 # Tests failed: 0 ok 1 selftests: net: test_vxlan_nolocalbypass.sh make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net' make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests' xx__-> echo $? 0 xx__->