[   15.629799] ==================================================================
[   15.629921] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0
[   15.630017] Read of size 18446744073709551614 at addr fff00000c636b384 by task kunit_try_catch/185
[   15.630154] 
[   15.630222] CPU: 0 UID: 0 PID: 185 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT 
[   15.630527] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.630578] Hardware name: linux,dummy-virt (DT)
[   15.630619] Call trace:
[   15.630660]  show_stack+0x20/0x38 (C)
[   15.630826]  dump_stack_lvl+0x8c/0xd0
[   15.630928]  print_report+0x118/0x608
[   15.631103]  kasan_report+0xdc/0x128
[   15.631146]  kasan_check_range+0x100/0x1a8
[   15.631190]  __asan_memmove+0x3c/0x98
[   15.631250]  kmalloc_memmove_negative_size+0x154/0x2e0
[   15.631302]  kunit_try_run_case+0x170/0x3f0
[   15.631348]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.631399]  kthread+0x328/0x630
[   15.631527]  ret_from_fork+0x10/0x20
[   15.631613] 
[   15.631738] Allocated by task 185:
[   15.631783]  kasan_save_stack+0x3c/0x68
[   15.631957]  kasan_save_track+0x20/0x40
[   15.632029]  kasan_save_alloc_info+0x40/0x58
[   15.632248]  __kasan_kmalloc+0xd4/0xd8
[   15.632470]  __kmalloc_cache_noprof+0x16c/0x3c0
[   15.632519]  kmalloc_memmove_negative_size+0xb0/0x2e0
[   15.633178]  kunit_try_run_case+0x170/0x3f0
[   15.633444]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.633504]  kthread+0x328/0x630
[   15.633684]  ret_from_fork+0x10/0x20
[   15.633794] 
[   15.633898] The buggy address belongs to the object at fff00000c636b380
[   15.633898]  which belongs to the cache kmalloc-64 of size 64
[   15.634217] The buggy address is located 4 bytes inside of
[   15.634217]  64-byte region [fff00000c636b380, fff00000c636b3c0)
[   15.634303] 
[   15.634430] The buggy address belongs to the physical page:
[   15.634526] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10636b
[   15.634786] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   15.634949] page_type: f5(slab)
[   15.635016] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000
[   15.635157] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   15.635274] page dumped because: kasan: bad access detected
[   15.635580] 
[   15.635751] Memory state around the buggy address:
[   15.635859]  fff00000c636b280: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc
[   15.636105]  fff00000c636b300: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   15.636518] >fff00000c636b380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   15.636656]                    ^
[   15.636761]  fff00000c636b400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.636812]  fff00000c636b480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.636850] ==================================================================

[   14.488550] ==================================================================
[   14.489181] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x171/0x330
[   14.490683] Read of size 18446744073709551614 at addr ffff8881029f1004 by task kunit_try_catch/201
[   14.491122] 
[   14.491422] CPU: 1 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT(voluntary) 
[   14.491526] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.491553] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.491600] Call Trace:
[   14.491622]  <TASK>
[   14.491649]  dump_stack_lvl+0x73/0xb0
[   14.491694]  print_report+0xd1/0x650
[   14.491720]  ? __virt_addr_valid+0x1db/0x2d0
[   14.491747]  ? kmalloc_memmove_negative_size+0x171/0x330
[   14.491781]  ? kasan_complete_mode_report_info+0x2a/0x200
[   14.491817]  ? kmalloc_memmove_negative_size+0x171/0x330
[   14.491852]  kasan_report+0x141/0x180
[   14.491893]  ? kmalloc_memmove_negative_size+0x171/0x330
[   14.491946]  kasan_check_range+0x10c/0x1c0
[   14.491991]  __asan_memmove+0x27/0x70
[   14.492037]  kmalloc_memmove_negative_size+0x171/0x330
[   14.492081]  ? __pfx_kmalloc_memmove_negative_size+0x10/0x10
[   14.492125]  ? __schedule+0x10cc/0x2b60
[   14.492174]  ? __pfx_read_tsc+0x10/0x10
[   14.492218]  ? ktime_get_ts64+0x86/0x230
[   14.492276]  kunit_try_run_case+0x1a5/0x480
[   14.492331]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.492392]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.492446]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.492497]  ? __kthread_parkme+0x82/0x180
[   14.492531]  ? preempt_count_sub+0x50/0x80
[   14.492559]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.492584]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.492608]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.492633]  kthread+0x337/0x6f0
[   14.492651]  ? trace_preempt_on+0x20/0xc0
[   14.492677]  ? __pfx_kthread+0x10/0x10
[   14.492696]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.492717]  ? calculate_sigpending+0x7b/0xa0
[   14.492741]  ? __pfx_kthread+0x10/0x10
[   14.492761]  ret_from_fork+0x41/0x80
[   14.492782]  ? __pfx_kthread+0x10/0x10
[   14.492801]  ret_from_fork_asm+0x1a/0x30
[   14.492835]  </TASK>
[   14.492847] 
[   14.505184] Allocated by task 201:
[   14.505677]  kasan_save_stack+0x45/0x70
[   14.506056]  kasan_save_track+0x18/0x40
[   14.506413]  kasan_save_alloc_info+0x3b/0x50
[   14.506707]  __kasan_kmalloc+0xb7/0xc0
[   14.507037]  __kmalloc_cache_noprof+0x189/0x420
[   14.507489]  kmalloc_memmove_negative_size+0xac/0x330
[   14.507693]  kunit_try_run_case+0x1a5/0x480
[   14.508116]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.508497]  kthread+0x337/0x6f0
[   14.508828]  ret_from_fork+0x41/0x80
[   14.509042]  ret_from_fork_asm+0x1a/0x30
[   14.509371] 
[   14.509563] The buggy address belongs to the object at ffff8881029f1000
[   14.509563]  which belongs to the cache kmalloc-64 of size 64
[   14.510226] The buggy address is located 4 bytes inside of
[   14.510226]  64-byte region [ffff8881029f1000, ffff8881029f1040)
[   14.510832] 
[   14.511050] The buggy address belongs to the physical page:
[   14.511542] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f1
[   14.512051] flags: 0x200000000000000(node=0|zone=2)
[   14.512461] page_type: f5(slab)
[   14.512737] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000
[   14.513298] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   14.513904] page dumped because: kasan: bad access detected
[   14.514200] 
[   14.514401] Memory state around the buggy address:
[   14.514818]  ffff8881029f0f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.515318]  ffff8881029f0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.515695] >ffff8881029f1000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   14.516193]                    ^
[   14.516521]  ffff8881029f1080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.516963]  ffff8881029f1100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.517438] ==================================================================