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Date
July 14, 2025, 10:38 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64 

[   55.693497] ==================================================================
[   55.703798] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8
[   55.709787] Read of size 1 at addr ffff000805f39f58 by task kunit_try_catch/341
[   55.717077] 
[   55.718564] CPU: 7 UID: 0 PID: 341 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   55.718622] Tainted: [B]=BAD_PAGE, [N]=TEST
[   55.718643] Hardware name: WinLink E850-96 board (DT)
[   55.718664] Call trace:
[   55.718678]  show_stack+0x20/0x38 (C)
[   55.718717]  dump_stack_lvl+0x8c/0xd0
[   55.718750]  print_report+0x118/0x5d0
[   55.718784]  kasan_report+0xdc/0x128
[   55.718814]  __asan_report_load1_noabort+0x20/0x30
[   55.718852]  memcmp+0x198/0x1d8
[   55.718886]  kasan_memcmp+0x16c/0x300
[   55.718919]  kunit_try_run_case+0x170/0x3f0
[   55.718962]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   55.718995]  kthread+0x328/0x630
[   55.719026]  ret_from_fork+0x10/0x20
[   55.719067] 
[   55.785220] Allocated by task 341:
[   55.788605]  kasan_save_stack+0x3c/0x68
[   55.792422]  kasan_save_track+0x20/0x40
[   55.796242]  kasan_save_alloc_info+0x40/0x58
[   55.800495]  __kasan_kmalloc+0xd4/0xd8
[   55.804228]  __kmalloc_cache_noprof+0x16c/0x3c0
[   55.808742]  kasan_memcmp+0xbc/0x300
[   55.812301]  kunit_try_run_case+0x170/0x3f0
[   55.816467]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   55.821936]  kthread+0x328/0x630
[   55.825148]  ret_from_fork+0x10/0x20
[   55.828710] 
[   55.830184] The buggy address belongs to the object at ffff000805f39f40
[   55.830184]  which belongs to the cache kmalloc-32 of size 32
[   55.842512] The buggy address is located 0 bytes to the right of
[   55.842512]  allocated 24-byte region [ffff000805f39f40, ffff000805f39f58)
[   55.855356] 
[   55.856835] The buggy address belongs to the physical page:
[   55.862391] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x885f39
[   55.870377] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   55.876886] page_type: f5(slab)
[   55.880022] raw: 0bfffe0000000000 ffff000800002780 dead000000000122 0000000000000000
[   55.887741] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   55.895461] page dumped because: kasan: bad access detected
[   55.901015] 
[   55.902492] Memory state around the buggy address:
[   55.907274]  ffff000805f39e00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   55.914475]  ffff000805f39e80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   55.921679] >ffff000805f39f00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
[   55.928880]                                                     ^
[   55.934959]  ffff000805f39f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   55.942165]  ffff000805f3a000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   55.949366] ==================================================================
Metadata Full log Test run details 

[   31.947794] ==================================================================
[   31.948011] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8
[   31.948125] Read of size 1 at addr fff00000c6534218 by task kunit_try_catch/288
[   31.948283] 
[   31.948327] CPU: 0 UID: 0 PID: 288 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   31.948435] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.948465] Hardware name: linux,dummy-virt (DT)
[   31.948509] Call trace:
[   31.948536]  show_stack+0x20/0x38 (C)
[   31.948941]  dump_stack_lvl+0x8c/0xd0
[   31.949120]  print_report+0x118/0x5d0
[   31.949237]  kasan_report+0xdc/0x128
[   31.949381]  __asan_report_load1_noabort+0x20/0x30
[   31.949494]  memcmp+0x198/0x1d8
[   31.949584]  kasan_memcmp+0x16c/0x300
[   31.949852]  kunit_try_run_case+0x170/0x3f0
[   31.950029]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.950165]  kthread+0x328/0x630
[   31.950212]  ret_from_fork+0x10/0x20
[   31.950274] 
[   31.950303] Allocated by task 288:
[   31.950343]  kasan_save_stack+0x3c/0x68
[   31.950390]  kasan_save_track+0x20/0x40
[   31.950439]  kasan_save_alloc_info+0x40/0x58
[   31.950477]  __kasan_kmalloc+0xd4/0xd8
[   31.950526]  __kmalloc_cache_noprof+0x16c/0x3c0
[   31.950573]  kasan_memcmp+0xbc/0x300
[   31.950619]  kunit_try_run_case+0x170/0x3f0
[   31.950659]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.950726]  kthread+0x328/0x630
[   31.950760]  ret_from_fork+0x10/0x20
[   31.950798] 
[   31.950828] The buggy address belongs to the object at fff00000c6534200
[   31.950828]  which belongs to the cache kmalloc-32 of size 32
[   31.950897] The buggy address is located 0 bytes to the right of
[   31.950897]  allocated 24-byte region [fff00000c6534200, fff00000c6534218)
[   31.950968] 
[   31.951008] The buggy address belongs to the physical page:
[   31.951069] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106534
[   31.951401] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   31.951732] page_type: f5(slab)
[   31.951852] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000
[   31.951967] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   31.952198] page dumped because: kasan: bad access detected
[   31.952600] 
[   31.952665] Memory state around the buggy address:
[   31.952794]  fff00000c6534100: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc
[   31.952871]  fff00000c6534180: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   31.952937] >fff00000c6534200: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.953128]                             ^
[   31.953315]  fff00000c6534280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.953367]  fff00000c6534300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.953499] ==================================================================
Metadata Full log Test run details 

[   26.234472] ==================================================================
[   26.235029] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0
[   26.235344] Read of size 1 at addr ffff888103eba018 by task kunit_try_catch/306
[   26.235670] 
[   26.235798] CPU: 0 UID: 0 PID: 306 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc6-next-20250714 #1 PREEMPT(voluntary) 
[   26.235886] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   26.235901] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.235937] Call Trace:
[   26.235949]  <TASK>
[   26.235968]  dump_stack_lvl+0x73/0xb0
[   26.236000]  print_report+0xd1/0x610
[   26.236043]  ? __virt_addr_valid+0x1db/0x2d0
[   26.236088]  ? memcmp+0x1b4/0x1d0
[   26.236106]  ? kasan_complete_mode_report_info+0x2a/0x200
[   26.236161]  ? memcmp+0x1b4/0x1d0
[   26.236180]  kasan_report+0x141/0x180
[   26.236218]  ? memcmp+0x1b4/0x1d0
[   26.236247]  __asan_report_load1_noabort+0x18/0x20
[   26.236271]  memcmp+0x1b4/0x1d0
[   26.236290]  kasan_memcmp+0x18f/0x390
[   26.236310]  ? trace_hardirqs_on+0x37/0xe0
[   26.236333]  ? __pfx_kasan_memcmp+0x10/0x10
[   26.236352]  ? finish_task_switch.isra.0+0x153/0x700
[   26.236374]  ? __switch_to+0x47/0xf80
[   26.236402]  ? __pfx_read_tsc+0x10/0x10
[   26.236424]  ? ktime_get_ts64+0x86/0x230
[   26.236457]  kunit_try_run_case+0x1a5/0x480
[   26.236480]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.236500]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   26.236524]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.236547]  ? __kthread_parkme+0x82/0x180
[   26.236593]  ? preempt_count_sub+0x50/0x80
[   26.236615]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.236636]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.236694]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.236719]  kthread+0x337/0x6f0
[   26.236738]  ? trace_preempt_on+0x20/0xc0
[   26.236779]  ? __pfx_kthread+0x10/0x10
[   26.236799]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.236820]  ? calculate_sigpending+0x7b/0xa0
[   26.236844]  ? __pfx_kthread+0x10/0x10
[   26.236866]  ret_from_fork+0x116/0x1d0
[   26.236885]  ? __pfx_kthread+0x10/0x10
[   26.236905]  ret_from_fork_asm+0x1a/0x30
[   26.236935]  </TASK>
[   26.237009] 
[   26.249062] Allocated by task 306:
[   26.249481]  kasan_save_stack+0x45/0x70
[   26.249701]  kasan_save_track+0x18/0x40
[   26.250037]  kasan_save_alloc_info+0x3b/0x50
[   26.250233]  __kasan_kmalloc+0xb7/0xc0
[   26.250398]  __kmalloc_cache_noprof+0x189/0x420
[   26.250597]  kasan_memcmp+0xb7/0x390
[   26.251354]  kunit_try_run_case+0x1a5/0x480
[   26.251739]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.252448]  kthread+0x337/0x6f0
[   26.252811]  ret_from_fork+0x116/0x1d0
[   26.253053]  ret_from_fork_asm+0x1a/0x30
[   26.253235] 
[   26.253321] The buggy address belongs to the object at ffff888103eba000
[   26.253321]  which belongs to the cache kmalloc-32 of size 32
[   26.253903] The buggy address is located 0 bytes to the right of
[   26.253903]  allocated 24-byte region [ffff888103eba000, ffff888103eba018)
[   26.254408] 
[   26.254495] The buggy address belongs to the physical page:
[   26.255318] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103eba
[   26.255785] flags: 0x200000000000000(node=0|zone=2)
[   26.256411] page_type: f5(slab)
[   26.256634] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   26.257585] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   26.258369] page dumped because: kasan: bad access detected
[   26.258708] 
[   26.259041] Memory state around the buggy address:
[   26.259265]  ffff888103eb9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.259550]  ffff888103eb9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.260279] >ffff888103eba000: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.260726]                             ^
[   26.261082]  ffff888103eba080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.261378]  ffff888103eba100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.261668] ==================================================================
Metadata Full log Test run details