[   28.118906] ==================================================================
[   28.119787] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330
[   28.120730] Read of size 18446744073709551614 at addr ffff888101ab3284 by task kunit_try_catch/187
[   28.122166] 
[   28.122520] CPU: 0 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   28.123801] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.124385] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   28.125343] Call Trace:
[   28.125599]  <TASK>
[   28.126107]  dump_stack_lvl+0x73/0xb0
[   28.126809]  print_report+0xd1/0x640
[   28.127357]  ? __virt_addr_valid+0x1db/0x2d0
[   28.127872]  ? kasan_complete_mode_report_info+0x2a/0x200
[   28.128332]  kasan_report+0x102/0x140
[   28.129103]  ? kmalloc_memmove_negative_size+0x172/0x330
[   28.129578]  ? kmalloc_memmove_negative_size+0x172/0x330
[   28.130248]  kasan_check_range+0x10c/0x1c0
[   28.130820]  __asan_memmove+0x27/0x70
[   28.131306]  kmalloc_memmove_negative_size+0x172/0x330
[   28.131862]  ? __pfx_kmalloc_memmove_negative_size+0x10/0x10
[   28.132566]  ? __schedule+0xc70/0x27e0
[   28.132952]  ? __pfx_read_tsc+0x10/0x10
[   28.133518]  ? ktime_get_ts64+0x86/0x230
[   28.134128]  kunit_try_run_case+0x1b3/0x490
[   28.134566]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.135074]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   28.135479]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.136067]  ? __kthread_parkme+0x82/0x160
[   28.136446]  ? preempt_count_sub+0x50/0x80
[   28.137165]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.137664]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.138504]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.139179]  kthread+0x257/0x310
[   28.139468]  ? __pfx_kthread+0x10/0x10
[   28.140134]  ret_from_fork+0x41/0x80
[   28.140547]  ? __pfx_kthread+0x10/0x10
[   28.141120]  ret_from_fork_asm+0x1a/0x30
[   28.141627]  </TASK>
[   28.141922] 
[   28.142300] Allocated by task 187:
[   28.142649]  kasan_save_stack+0x3d/0x60
[   28.143331]  kasan_save_track+0x18/0x40
[   28.143714]  kasan_save_alloc_info+0x3b/0x50
[   28.144368]  __kasan_kmalloc+0xb7/0xc0
[   28.144646]  __kmalloc_cache_noprof+0x184/0x410
[   28.145355]  kmalloc_memmove_negative_size+0xad/0x330
[   28.146107]  kunit_try_run_case+0x1b3/0x490
[   28.146432]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.147169]  kthread+0x257/0x310
[   28.147593]  ret_from_fork+0x41/0x80
[   28.148265]  ret_from_fork_asm+0x1a/0x30
[   28.148628] 
[   28.148852] The buggy address belongs to the object at ffff888101ab3280
[   28.148852]  which belongs to the cache kmalloc-64 of size 64
[   28.150006] The buggy address is located 4 bytes inside of
[   28.150006]  64-byte region [ffff888101ab3280, ffff888101ab32c0)
[   28.150975] 
[   28.151186] The buggy address belongs to the physical page:
[   28.151938] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101ab3
[   28.152742] flags: 0x200000000000000(node=0|zone=2)
[   28.153372] page_type: f5(slab)
[   28.153930] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000
[   28.155142] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   28.155798] page dumped because: kasan: bad access detected
[   28.156540] 
[   28.156826] Memory state around the buggy address:
[   28.157580]  ffff888101ab3180: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc
[   28.158334]  ffff888101ab3200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   28.159247] >ffff888101ab3280: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   28.159911]                    ^
[   28.160403]  ffff888101ab3300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.161282]  ffff888101ab3380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.162115] ==================================================================