[   34.092532] ==================================================================
[   34.093778] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0xeb/0x1f0
[   34.094755] Read of size 18446744073709551614 at addr ffff888102864084 by task kunit_try_catch/174
[   34.096017] 
[   34.096161] CPU: 0 PID: 174 Comm: kunit_try_catch Tainted: G    B            N 6.6.94-rc1 #1
[   34.097074] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   34.098141] Call Trace:
[   34.098449]  <TASK>
[   34.098877]  dump_stack_lvl+0x4e/0x90
[   34.099330]  print_report+0xd2/0x650
[   34.099871]  ? __virt_addr_valid+0x156/0x1e0
[   34.100353]  ? kmalloc_memmove_negative_size+0xeb/0x1f0
[   34.100721]  ? kasan_complete_mode_report_info+0x2a/0x200
[   34.101031]  ? kmalloc_memmove_negative_size+0xeb/0x1f0
[   34.101308]  kasan_report+0x147/0x180
[   34.101824]  ? kmalloc_memmove_negative_size+0xeb/0x1f0
[   34.102456]  kasan_check_range+0x10c/0x1c0
[   34.103477]  __asan_memmove+0x27/0x70
[   34.103968]  kmalloc_memmove_negative_size+0xeb/0x1f0
[   34.104604]  ? __pfx_kmalloc_memmove_negative_size+0x10/0x10
[   34.105261]  ? __schedule+0x715/0x11a0
[   34.105776]  ? ktime_get_ts64+0x118/0x140
[   34.106332]  kunit_try_run_case+0x120/0x290
[   34.106929]  ? __pfx_kunit_try_run_case+0x10/0x10
[   34.107557]  ? __kasan_check_write+0x18/0x20
[   34.108590]  ? trace_preempt_on+0x20/0xa0
[   34.108876]  ? __kthread_parkme+0x4f/0xd0
[   34.109105]  ? preempt_count_sub+0x50/0x80
[   34.109333]  ? __pfx_kunit_try_run_case+0x10/0x10
[   34.110225]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   34.111290]  kunit_generic_run_threadfn_adapter+0x33/0x50
[   34.112089]  kthread+0x19e/0x1e0
[   34.112748]  ? __pfx_kthread+0x10/0x10
[   34.113395]  ret_from_fork+0x41/0x70
[   34.113964]  ? __pfx_kthread+0x10/0x10
[   34.114647]  ret_from_fork_asm+0x1b/0x30
[   34.115245]  </TASK>
[   34.115541] 
[   34.115906] Allocated by task 174:
[   34.116470]  kasan_save_stack+0x44/0x70
[   34.117078]  kasan_set_track+0x29/0x40
[   34.117295]  kasan_save_alloc_info+0x22/0x30
[   34.118185]  __kasan_kmalloc+0xb7/0xc0
[   34.118822]  kmalloc_trace+0x4c/0xb0
[   34.119309]  kmalloc_memmove_negative_size+0x9f/0x1f0
[   34.119986]  kunit_try_run_case+0x120/0x290
[   34.120227]  kunit_generic_run_threadfn_adapter+0x33/0x50
[   34.120647]  kthread+0x19e/0x1e0
[   34.121087]  ret_from_fork+0x41/0x70
[   34.121480]  ret_from_fork_asm+0x1b/0x30
[   34.121996] 
[   34.122213] The buggy address belongs to the object at ffff888102864080
[   34.122213]  which belongs to the cache kmalloc-64 of size 64
[   34.123598] The buggy address is located 4 bytes inside of
[   34.123598]  64-byte region [ffff888102864080, ffff8881028640c0)
[   34.124164] 
[   34.124273] The buggy address belongs to the physical page:
[   34.124536] page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102864
[   34.125114] flags: 0x200000000000800(slab|node=0|zone=2)
[   34.125833] page_type: 0xffffffff()
[   34.126213] raw: 0200000000000800 ffff888100041640 dead000000000122 0000000000000000
[   34.126759] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[   34.127311] page dumped because: kasan: bad access detected
[   34.127762] 
[   34.128004] Memory state around the buggy address:
[   34.128386]  ffff888102863f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.128716]  ffff888102864000: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   34.129577] >ffff888102864080: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   34.130342]                    ^
[   34.130753]  ffff888102864100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.131617]  ffff888102864180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   34.132216] ==================================================================