[   29.300434] ==================================================================
[   29.301223] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x3c/0x70
[   29.301817] Read of size 121 at addr ffff888104975500 by task kunit_try_catch/333
[   29.302568] 
[   29.302780] CPU: 0 UID: 0 PID: 333 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) 
[   29.302841] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.302856] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.302880] Call Trace:
[   29.302894]  <TASK>
[   29.302913]  dump_stack_lvl+0x73/0xb0
[   29.302942]  print_report+0xd1/0x640
[   29.302966]  ? __virt_addr_valid+0x1db/0x2d0
[   29.302992]  ? _copy_to_user+0x3c/0x70
[   29.303013]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.303041]  ? _copy_to_user+0x3c/0x70
[   29.303063]  kasan_report+0x141/0x180
[   29.303087]  ? _copy_to_user+0x3c/0x70
[   29.303113]  kasan_check_range+0x10c/0x1c0
[   29.303139]  __kasan_check_read+0x15/0x20
[   29.303166]  _copy_to_user+0x3c/0x70
[   29.303188]  copy_user_test_oob+0x364/0x10f0
[   29.303216]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.303240]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   29.303275]  ? __pfx_copy_user_test_oob+0x10/0x10
[   29.303304]  kunit_try_run_case+0x1a5/0x480
[   29.303331]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.303355]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.303383]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.303410]  ? __kthread_parkme+0x82/0x180
[   29.303432]  ? preempt_count_sub+0x50/0x80
[   29.303458]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.303485]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.303510]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.303536]  kthread+0x337/0x6f0
[   29.303559]  ? trace_preempt_on+0x20/0xc0
[   29.303584]  ? __pfx_kthread+0x10/0x10
[   29.303606]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.303645]  ? calculate_sigpending+0x7b/0xa0
[   29.303671]  ? __pfx_kthread+0x10/0x10
[   29.303694]  ret_from_fork+0x116/0x1d0
[   29.303716]  ? __pfx_kthread+0x10/0x10
[   29.303739]  ret_from_fork_asm+0x1a/0x30
[   29.303771]  </TASK>
[   29.303784] 
[   29.314887] Allocated by task 333:
[   29.315171]  kasan_save_stack+0x45/0x70
[   29.315454]  kasan_save_track+0x18/0x40
[   29.315788]  kasan_save_alloc_info+0x3b/0x50
[   29.316070]  __kasan_kmalloc+0xb7/0xc0
[   29.316420]  __kmalloc_noprof+0x1ca/0x510
[   29.316878]  kunit_kmalloc_array+0x25/0x60
[   29.317316]  copy_user_test_oob+0xab/0x10f0
[   29.317675]  kunit_try_run_case+0x1a5/0x480
[   29.317828]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.318018]  kthread+0x337/0x6f0
[   29.318348]  ret_from_fork+0x116/0x1d0
[   29.318759]  ret_from_fork_asm+0x1a/0x30
[   29.319185] 
[   29.319355] The buggy address belongs to the object at ffff888104975500
[   29.319355]  which belongs to the cache kmalloc-128 of size 128
[   29.320575] The buggy address is located 0 bytes inside of
[   29.320575]  allocated 120-byte region [ffff888104975500, ffff888104975578)
[   29.321593] 
[   29.321668] The buggy address belongs to the physical page:
[   29.321859] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104975
[   29.322106] flags: 0x200000000000000(node=0|zone=2)
[   29.322287] page_type: f5(slab)
[   29.322410] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.322739] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.323286] page dumped because: kasan: bad access detected
[   29.323849] 
[   29.324020] Memory state around the buggy address:
[   29.324472]  ffff888104975400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.324939]  ffff888104975480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.325171] >ffff888104975500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.325890]                                                                 ^
[   29.326601]  ffff888104975580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.327274]  ffff888104975600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.327932] ==================================================================