IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready 8021q: adding VLAN 0 to HW filter on device batadv0 ================================================================== BUG: KASAN: stack-out-of-bounds in debug_lockdep_rcu_enabled.part.0+0x50/0x60 kernel/rcu/update.c:249 Read of size 4 at addr ffff8880a94c8cbc by task è¤<‰ÿÿÿÿ0kÿÿÿÿÈ‹L©€ˆÿÿ^9hÿÿÿÿ³ŠµA/-2123883558 CPU: 1 PID: -2123883558 Comm: ÿO2ñÿÿÿýO2ñÿûÿÿ Not tainted 5.0.0-rc1+ #14 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Allocated by task 0: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] kasan_kmalloc mm/kasan/common.c:482 [inline] kasan_kmalloc+0xcf/0xe0 mm/kasan/common.c:455 __do_kmalloc_node mm/slab.c:3671 [inline] __kmalloc_node+0x4e/0x70 mm/slab.c:3678 kmalloc_node include/linux/slab.h:588 [inline] alloc_arraycache mm/slab.c:575 [inline] setup_kmem_cache_node+0x12a/0x420 mm/slab.c:916 setup_kmem_cache_nodes mm/slab.c:3819 [inline] __do_tune_cpucache+0x161/0x220 mm/slab.c:3889 do_tune_cpucache+0x25/0xd0 mm/slab.c:3898 enable_cpucache+0x3e/0xd0 mm/slab.c:3979 setup_cpu_cache+0xd4/0x1e0 mm/slab.c:1821 __kmem_cache_create+0x1bb/0x270 mm/slab.c:2134 create_cache+0xd4/0x200 mm/slab_common.c:391 kmem_cache_create_usercopy+0x1a5/0x260 mm/slab_common.c:489 kmem_cache_create+0x11/0x20 mm/slab_common.c:548 acpi_os_create_cache+0x2c/0x70 drivers/acpi/osl.c:1630 acpi_ut_create_caches+0xfc/0x10b drivers/acpi/acpica/utalloc.c:104 acpi_ut_init_globals+0x15/0xbcd drivers/acpi/acpica/utinit.c:94 acpi_initialize_subsystem+0x82/0x155 drivers/acpi/acpica/utxfinit.c:57 acpi_early_init+0x170/0x44f drivers/acpi/bus.c:1050 start_kernel+0x795/0x8bd init/main.c:702 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:470 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:451 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 Freed by task 2451541440: ------------[ cut here ]------------ Bad or missing usercopy whitelist? Kernel memory overwrite attempt detected to SLAB object 'task_struct' (offset 600, size 1)! ------------[ cut here ]------------ kernel BUG at mm/slab.c:4412! WARNING: CPU: 1 PID: -1454601544 at kernel/rcu/tree_plugin.h:444 __rcu_read_unlock+0x1af/0x210 kernel/rcu/tree_plugin.h:444