[   13.305365] ==================================================================
[   13.306203] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0
[   13.306666] Read of size 1 at addr ffff8881029bd000 by task kunit_try_catch/158
[   13.307215] 
[   13.307448] CPU: 0 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) 
[   13.307549] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.307575] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.307615] Call Trace:
[   13.307643]  <TASK>
[   13.307682]  dump_stack_lvl+0x73/0xb0
[   13.307748]  print_report+0xd1/0x650
[   13.307787]  ? __virt_addr_valid+0x1db/0x2d0
[   13.307827]  ? kmalloc_node_oob_right+0x369/0x3c0
[   13.308057]  ? kasan_complete_mode_report_info+0x2a/0x200
[   13.308100]  ? kmalloc_node_oob_right+0x369/0x3c0
[   13.308147]  kasan_report+0x141/0x180
[   13.308438]  ? kmalloc_node_oob_right+0x369/0x3c0
[   13.308552]  __asan_report_load1_noabort+0x18/0x20
[   13.308591]  kmalloc_node_oob_right+0x369/0x3c0
[   13.308636]  ? __pfx_kmalloc_node_oob_right+0x10/0x10
[   13.308662]  ? __schedule+0x10cc/0x2b60
[   13.308687]  ? __pfx_read_tsc+0x10/0x10
[   13.308710]  ? ktime_get_ts64+0x86/0x230
[   13.308736]  kunit_try_run_case+0x1a5/0x480
[   13.308764]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.308786]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.308809]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.308831]  ? __kthread_parkme+0x82/0x180
[   13.308853]  ? preempt_count_sub+0x50/0x80
[   13.308878]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.308901]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.308923]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.308945]  kthread+0x337/0x6f0
[   13.308965]  ? trace_preempt_on+0x20/0xc0
[   13.308989]  ? __pfx_kthread+0x10/0x10
[   13.309009]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.309029]  ? calculate_sigpending+0x7b/0xa0
[   13.309055]  ? __pfx_kthread+0x10/0x10
[   13.309076]  ret_from_fork+0x116/0x1d0
[   13.309094]  ? __pfx_kthread+0x10/0x10
[   13.309115]  ret_from_fork_asm+0x1a/0x30
[   13.309148]  </TASK>
[   13.309161] 
[   13.321505] Allocated by task 158:
[   13.322013]  kasan_save_stack+0x45/0x70
[   13.322641]  kasan_save_track+0x18/0x40
[   13.322940]  kasan_save_alloc_info+0x3b/0x50
[   13.323106]  __kasan_kmalloc+0xb7/0xc0
[   13.323420]  __kmalloc_cache_node_noprof+0x188/0x420
[   13.324018]  kmalloc_node_oob_right+0xab/0x3c0
[   13.324414]  kunit_try_run_case+0x1a5/0x480
[   13.324881]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.325118]  kthread+0x337/0x6f0
[   13.325424]  ret_from_fork+0x116/0x1d0
[   13.325872]  ret_from_fork_asm+0x1a/0x30
[   13.326275] 
[   13.326431] The buggy address belongs to the object at ffff8881029bc000
[   13.326431]  which belongs to the cache kmalloc-4k of size 4096
[   13.327406] The buggy address is located 0 bytes to the right of
[   13.327406]  allocated 4096-byte region [ffff8881029bc000, ffff8881029bd000)
[   13.328248] 
[   13.328653] The buggy address belongs to the physical page:
[   13.329123] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029b8
[   13.330121] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   13.330504] flags: 0x200000000000040(head|node=0|zone=2)
[   13.330918] page_type: f5(slab)
[   13.331724] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   13.331966] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   13.332206] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   13.333027] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   13.333351] head: 0200000000000003 ffffea00040a6e01 00000000ffffffff 00000000ffffffff
[   13.334019] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   13.334365] page dumped because: kasan: bad access detected
[   13.334645] 
[   13.335202] Memory state around the buggy address:
[   13.335463]  ffff8881029bcf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.336032]  ffff8881029bcf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.336248] >ffff8881029bd000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.337245]                    ^
[   13.337440]  ffff8881029bd080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.338129]  ffff8881029bd100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.338700] ==================================================================