[   35.051387] ==================================================================
[   35.051934] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   35.052517] Read of size 121 at addr ffff888102df6500 by task kunit_try_catch/315
[   35.053186] 
[   35.053382] CPU: 0 UID: 0 PID: 315 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[   35.053500] Tainted: [B]=BAD_PAGE, [N]=TEST
[   35.053559] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   35.053657] Call Trace:
[   35.053708]  <TASK>
[   35.053752]  dump_stack_lvl+0x73/0xb0
[   35.053866]  print_report+0xd1/0x650
[   35.053934]  ? __virt_addr_valid+0x1db/0x2d0
[   35.054004]  ? _copy_to_user+0x3c/0x70
[   35.054052]  ? kasan_complete_mode_report_info+0x2a/0x200
[   35.054123]  ? _copy_to_user+0x3c/0x70
[   35.054183]  kasan_report+0x141/0x180
[   35.054246]  ? _copy_to_user+0x3c/0x70
[   35.054362]  kasan_check_range+0x10c/0x1c0
[   35.054439]  __kasan_check_read+0x15/0x20
[   35.054522]  _copy_to_user+0x3c/0x70
[   35.054598]  copy_user_test_oob+0x364/0x10f0
[   35.054705]  ? __pfx_copy_user_test_oob+0x10/0x10
[   35.054778]  ? finish_task_switch.isra.0+0x153/0x700
[   35.054857]  ? __switch_to+0x47/0xf50
[   35.054929]  ? __schedule+0x10cc/0x2b60
[   35.054998]  ? __pfx_read_tsc+0x10/0x10
[   35.055067]  ? ktime_get_ts64+0x86/0x230
[   35.055151]  kunit_try_run_case+0x1a5/0x480
[   35.055227]  ? __pfx_kunit_try_run_case+0x10/0x10
[   35.055295]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   35.055364]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   35.055425]  ? __kthread_parkme+0x82/0x180
[   35.055460]  ? preempt_count_sub+0x50/0x80
[   35.055493]  ? __pfx_kunit_try_run_case+0x10/0x10
[   35.055527]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   35.055582]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   35.055616]  kthread+0x337/0x6f0
[   35.055671]  ? trace_preempt_on+0x20/0xc0
[   35.055707]  ? __pfx_kthread+0x10/0x10
[   35.055737]  ? _raw_spin_unlock_irq+0x47/0x80
[   35.055769]  ? calculate_sigpending+0x7b/0xa0
[   35.055802]  ? __pfx_kthread+0x10/0x10
[   35.055842]  ret_from_fork+0x116/0x1d0
[   35.055870]  ? __pfx_kthread+0x10/0x10
[   35.055899]  ret_from_fork_asm+0x1a/0x30
[   35.055940]  </TASK>
[   35.055956] 
[   35.069882] Allocated by task 315:
[   35.070332]  kasan_save_stack+0x45/0x70
[   35.070804]  kasan_save_track+0x18/0x40
[   35.071274]  kasan_save_alloc_info+0x3b/0x50
[   35.071826]  __kasan_kmalloc+0xb7/0xc0
[   35.072228]  __kmalloc_noprof+0x1c9/0x500
[   35.072583]  kunit_kmalloc_array+0x25/0x60
[   35.072895]  copy_user_test_oob+0xab/0x10f0
[   35.073152]  kunit_try_run_case+0x1a5/0x480
[   35.073663]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   35.074200]  kthread+0x337/0x6f0
[   35.074583]  ret_from_fork+0x116/0x1d0
[   35.075113]  ret_from_fork_asm+0x1a/0x30
[   35.075558] 
[   35.075861] The buggy address belongs to the object at ffff888102df6500
[   35.075861]  which belongs to the cache kmalloc-128 of size 128
[   35.076676] The buggy address is located 0 bytes inside of
[   35.076676]  allocated 120-byte region [ffff888102df6500, ffff888102df6578)
[   35.077810] 
[   35.078004] The buggy address belongs to the physical page:
[   35.078486] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102df6
[   35.078901] flags: 0x200000000000000(node=0|zone=2)
[   35.079382] page_type: f5(slab)
[   35.079911] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   35.080441] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   35.080847] page dumped because: kasan: bad access detected
[   35.081127] 
[   35.081254] Memory state around the buggy address:
[   35.082710]  ffff888102df6400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   35.083396]  ffff888102df6480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.084150] >ffff888102df6500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   35.084794]                                                                 ^
[   35.085338]  ffff888102df6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.085892]  ffff888102df6600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   35.086481] ==================================================================