[   27.193554] ==================================================================
[   27.194189] BUG: KASAN: slab-out-of-bounds in _copy_from_user+0x32/0x90
[   27.194585] Write of size 121 at addr ffff88810611db00 by task kunit_try_catch/334
[   27.195129] 
[   27.195252] CPU: 0 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) 
[   27.195311] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.195337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.195364] Call Trace:
[   27.195379]  <TASK>
[   27.195401]  dump_stack_lvl+0x73/0xb0
[   27.195439]  print_report+0xd1/0x610
[   27.195466]  ? __virt_addr_valid+0x1db/0x2d0
[   27.195494]  ? _copy_from_user+0x32/0x90
[   27.195518]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.195546]  ? _copy_from_user+0x32/0x90
[   27.195571]  kasan_report+0x141/0x180
[   27.195595]  ? _copy_from_user+0x32/0x90
[   27.195648]  kasan_check_range+0x10c/0x1c0
[   27.195675]  __kasan_check_write+0x18/0x20
[   27.195700]  _copy_from_user+0x32/0x90
[   27.195725]  copy_user_test_oob+0x2be/0x10f0
[   27.195753]  ? __pfx_copy_user_test_oob+0x10/0x10
[   27.195779]  ? finish_task_switch.isra.0+0x153/0x700
[   27.195804]  ? __switch_to+0x47/0xf80
[   27.195832]  ? __schedule+0x10c6/0x2b60
[   27.195856]  ? __pfx_read_tsc+0x10/0x10
[   27.195880]  ? ktime_get_ts64+0x86/0x230
[   27.195907]  kunit_try_run_case+0x1a5/0x480
[   27.195932]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.195956]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   27.195979]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.196003]  ? __kthread_parkme+0x82/0x180
[   27.196026]  ? preempt_count_sub+0x50/0x80
[   27.196049]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.196074]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.196102]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.196130]  kthread+0x337/0x6f0
[   27.196151]  ? trace_preempt_on+0x20/0xc0
[   27.196176]  ? __pfx_kthread+0x10/0x10
[   27.196198]  ? _raw_spin_unlock_irq+0x47/0x80
[   27.196220]  ? calculate_sigpending+0x7b/0xa0
[   27.196247]  ? __pfx_kthread+0x10/0x10
[   27.196270]  ret_from_fork+0x116/0x1d0
[   27.196289]  ? __pfx_kthread+0x10/0x10
[   27.196311]  ret_from_fork_asm+0x1a/0x30
[   27.196355]  </TASK>
[   27.196369] 
[   27.203871] Allocated by task 334:
[   27.204015]  kasan_save_stack+0x45/0x70
[   27.204152]  kasan_save_track+0x18/0x40
[   27.204314]  kasan_save_alloc_info+0x3b/0x50
[   27.204547]  __kasan_kmalloc+0xb7/0xc0
[   27.204896]  __kmalloc_noprof+0x1c9/0x500
[   27.205041]  kunit_kmalloc_array+0x25/0x60
[   27.205175]  copy_user_test_oob+0xab/0x10f0
[   27.205311]  kunit_try_run_case+0x1a5/0x480
[   27.205504]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.205955]  kthread+0x337/0x6f0
[   27.206119]  ret_from_fork+0x116/0x1d0
[   27.206339]  ret_from_fork_asm+0x1a/0x30
[   27.206535] 
[   27.206643] The buggy address belongs to the object at ffff88810611db00
[   27.206643]  which belongs to the cache kmalloc-128 of size 128
[   27.207159] The buggy address is located 0 bytes inside of
[   27.207159]  allocated 120-byte region [ffff88810611db00, ffff88810611db78)
[   27.207719] 
[   27.207814] The buggy address belongs to the physical page:
[   27.208060] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10611d
[   27.208415] flags: 0x200000000000000(node=0|zone=2)
[   27.208704] page_type: f5(slab)
[   27.208868] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   27.209124] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   27.209352] page dumped because: kasan: bad access detected
[   27.209518] 
[   27.209581] Memory state around the buggy address:
[   27.209825]  ffff88810611da00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.210157]  ffff88810611da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.210505] >ffff88810611db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   27.211102]                                                                 ^
[   27.211392]  ffff88810611db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.211763]  ffff88810611dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.212013] ==================================================================