IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
8021q: adding VLAN 0 to HW filter on device team0
==================================================================
BUG: KASAN: slab-out-of-bounds in tick_sched_handle+0x16c/0x180 kernel/time/tick-sched.c:161
Read of size 8 at addr ffff8881b67dd970 by task syz-executor222/6021

CPU: 0 PID: 6021 Comm: syz-executor222 Not tainted 4.20.0-rc6-next-20181217+ #172
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
kasan: CONFIG_KASAN_INLINE enabled
 print_address_description.cold.4+0x9/0x1ff mm/kasan/report.c:187
 kasan_report.cold.5+0x1b/0x39 mm/kasan/report.c:317
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135
 tick_sched_handle+0x16c/0x180 kernel/time/tick-sched.c:161
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>

Allocated by task 5885:
kasan: GPF could be caused by NULL-ptr deref or user memory access
 save_stack+0x43/0xd0 mm/kasan/common.c:73
general protection fault: 0000 [#1] PREEMPT SMP KASAN
 set_track mm/kasan/common.c:85 [inline]
 kasan_kmalloc+0xcb/0xd0 mm/kasan/common.c:482
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0-rc6-next-20181217+ #172
 kmem_cache_alloc_trace+0x154/0x740 mm/slab.c:3607
 kmalloc include/linux/slab.h:545 [inline]
 kzalloc include/linux/slab.h:740 [inline]
 ima_calc_file_hash_tfm+0x2ee/0x450 security/integrity/ima/ima_crypto.c:349
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lookup_object lib/debugobjects.c:156 [inline]
RIP: 0010:debug_object_deactivate+0x191/0x450 lib/debugobjects.c:542
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:385 [inline]
 ima_calc_file_hash+0x222/0x570 security/integrity/ima/ima_crypto.c:450
 ima_collect_measurement+0x619/0x730 security/integrity/ima/ima_api.c:231
Code: 02 00 00 48 8b 1b 41 bf 01 00 00 00 48 85 db 74 46 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 41 83 c7 01 48 89 fe 48 c1 ee 03 <80> 3c 06 00 0f 85 04 02 00 00 48 3b 53 18 0f 84 53 01 00 00 48 89
 process_measurement+0x11fd/0x1bf0 security/integrity/ima/ima_main.c:286
 ima_bprm_check+0x11e/0x2e0 security/integrity/ima/ima_main.c:368
RSP: 0018:ffff8881dad078b0 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000040 RCX: ffffffff8394ea68
 security_bprm_check+0x85/0xb0 security/security.c:364
 search_binary_handler+0x77/0x570 fs/exec.c:1644
RDX: ffff8881c1b92158 RSI: 000000000000000b RDI: 0000000000000058
RBP: ffff8881dad07968 R08: ffffed103b5a0f03 R09: ffffed103b5a0f02
 exec_binprm fs/exec.c:1698 [inline]
 __do_execve_file.isra.35+0x178c/0x2760 fs/exec.c:1818
R10: ffffed103b5a0f02 R11: 0000000000000003 R12: 1ffff1103b5a0f18
R13: ffffffff8b4396c8 R14: ffffffff897ab5a0 R15: 0000000000000004
 do_execveat_common fs/exec.c:1865 [inline]
 do_execve fs/exec.c:1882 [inline]
 __do_sys_execve fs/exec.c:1963 [inline]
 __se_sys_execve fs/exec.c:1958 [inline]
 __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958
FS:  0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
CR2: 0000000000619570 CR3: 00000001c361b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000

Freed by task 5885:
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 save_stack+0x43/0xd0 mm/kasan/common.c:73
Call Trace:
 <IRQ>
 set_track mm/kasan/common.c:85 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/common.c:444
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:452
 __cache_free mm/slab.c:3485 [inline]
 kfree+0xcf/0x230 mm/slab.c:3804
 ima_calc_file_hash_tfm+0x3c7/0x450 security/integrity/ima/ima_crypto.c:369
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:385 [inline]
 ima_calc_file_hash+0x222/0x570 security/integrity/ima/ima_crypto.c:450
 ima_collect_measurement+0x619/0x730 security/integrity/ima/ima_api.c:231
 debug_timer_deactivate kernel/time/timer.c:713 [inline]
 debug_deactivate kernel/time/timer.c:769 [inline]
 detach_timer kernel/time/timer.c:814 [inline]
 expire_timers kernel/time/timer.c:1352 [inline]
 __run_timers+0x56f/0xc70 kernel/time/timer.c:1681
 process_measurement+0x11fd/0x1bf0 security/integrity/ima/ima_main.c:286
 ima_bprm_check+0x11e/0x2e0 security/integrity/ima/ima_main.c:368
 security_bprm_check+0x85/0xb0 security/security.c:364
 search_binary_handler+0x77/0x570 fs/exec.c:1644
 exec_binprm fs/exec.c:1698 [inline]
 __do_execve_file.isra.35+0x178c/0x2760 fs/exec.c:1818
 do_execveat_common fs/exec.c:1865 [inline]
 do_execve fs/exec.c:1882 [inline]
 __do_sys_execve fs/exec.c:1963 [inline]
 __se_sys_execve fs/exec.c:1958 [inline]
 __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8881b67dc3c0
 which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 1456 bytes to the right of
 4096-byte region [ffff8881b67dc3c0, ffff8881b67dd3c0)
The buggy address belongs to the page:
page:ffffea0006d9f700 count:1 mapcount:0 mapping:ffff8881da800dc0 index:0x0 compound_mapcount: 0
flags: 0x2fffc0000010200(slab|head)
raw: 02fffc0000010200 ffffea0006d98d88 ffffea00072a9508 ffff8881da800dc0
raw: 0000000000000000 ffff8881b67dc3c0 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected

 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694
Memory state around the buggy address:
 ffff8881b67dd800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 __do_softirq+0x308/0xb7e kernel/softirq.c:292
 ffff8881b67dd880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881b67dd900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                             ^
 ffff8881b67dd980: fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00
 ffff8881b67dda00: 00 00 00 f1 f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00
==================================================================