Hay
Date
May 12, 2025, 6:12 p.m.

Environment
qemu-arm64
qemu-x86_64

[   22.672938] ==================================================================
[   22.673254] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x270/0x2a0
[   22.673847] Write of size 1 at addr fff00000c6649478 by task kunit_try_catch/274
[   22.674152] 
[   22.674280] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   22.674385] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.674424] Hardware name: linux,dummy-virt (DT)
[   22.674498] Call trace:
[   22.674533]  show_stack+0x20/0x38 (C)
[   22.674595]  dump_stack_lvl+0x8c/0xd0
[   22.674684]  print_report+0x118/0x608
[   22.674768]  kasan_report+0xdc/0x128
[   22.674824]  __asan_report_store1_noabort+0x20/0x30
[   22.674909]  strncpy_from_user+0x270/0x2a0
[   22.674995]  copy_user_test_oob+0x5c0/0xec0
[   22.675054]  kunit_try_run_case+0x170/0x3f0
[   22.675110]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.675177]  kthread+0x318/0x620
[   22.675230]  ret_from_fork+0x10/0x20
[   22.675290] 
[   22.678233] Allocated by task 274:
[   22.678387]  kasan_save_stack+0x3c/0x68
[   22.678787]  kasan_save_track+0x20/0x40
[   22.679135]  kasan_save_alloc_info+0x40/0x58
[   22.679307]  __kasan_kmalloc+0xd4/0xd8
[   22.679688]  __kmalloc_noprof+0x190/0x4d0
[   22.679972]  kunit_kmalloc_array+0x34/0x88
[   22.680255]  copy_user_test_oob+0xac/0xec0
[   22.680482]  kunit_try_run_case+0x170/0x3f0
[   22.680702]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.681024]  kthread+0x318/0x620
[   22.681231]  ret_from_fork+0x10/0x20
[   22.681458] 
[   22.681585] The buggy address belongs to the object at fff00000c6649400
[   22.681585]  which belongs to the cache kmalloc-128 of size 128
[   22.681976] The buggy address is located 0 bytes to the right of
[   22.681976]  allocated 120-byte region [fff00000c6649400, fff00000c6649478)
[   22.682314] 
[   22.682419] The buggy address belongs to the physical page:
[   22.682873] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106649
[   22.683563] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   22.683987] page_type: f5(slab)
[   22.684148] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   22.684774] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   22.685309] page dumped because: kasan: bad access detected
[   22.685607] 
[   22.685721] Memory state around the buggy address:
[   22.686171]  fff00000c6649300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   22.686530]  fff00000c6649380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.686810] >fff00000c6649400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   22.687143]                                                                 ^
[   22.687467]  fff00000c6649480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.687819]  fff00000c6649500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.688086] ==================================================================
[   22.654983] ==================================================================
[   22.655661] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x3c/0x2a0
[   22.656149] Write of size 121 at addr fff00000c6649400 by task kunit_try_catch/274
[   22.656748] 
[   22.656930] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   22.657030] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.657082] Hardware name: linux,dummy-virt (DT)
[   22.657131] Call trace:
[   22.657166]  show_stack+0x20/0x38 (C)
[   22.657227]  dump_stack_lvl+0x8c/0xd0
[   22.657283]  print_report+0x118/0x608
[   22.657336]  kasan_report+0xdc/0x128
[   22.657416]  kasan_check_range+0x100/0x1a8
[   22.657507]  __kasan_check_write+0x20/0x30
[   22.657572]  strncpy_from_user+0x3c/0x2a0
[   22.657631]  copy_user_test_oob+0x5c0/0xec0
[   22.657685]  kunit_try_run_case+0x170/0x3f0
[   22.657753]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.657821]  kthread+0x318/0x620
[   22.657874]  ret_from_fork+0x10/0x20
[   22.657934] 
[   22.661320] Allocated by task 274:
[   22.661576]  kasan_save_stack+0x3c/0x68
[   22.661758]  kasan_save_track+0x20/0x40
[   22.662140]  kasan_save_alloc_info+0x40/0x58
[   22.662556]  __kasan_kmalloc+0xd4/0xd8
[   22.662805]  __kmalloc_noprof+0x190/0x4d0
[   22.663059]  kunit_kmalloc_array+0x34/0x88
[   22.663308]  copy_user_test_oob+0xac/0xec0
[   22.663558]  kunit_try_run_case+0x170/0x3f0
[   22.663772]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   22.664036]  kthread+0x318/0x620
[   22.664267]  ret_from_fork+0x10/0x20
[   22.664487] 
[   22.664593] The buggy address belongs to the object at fff00000c6649400
[   22.664593]  which belongs to the cache kmalloc-128 of size 128
[   22.665178] The buggy address is located 0 bytes inside of
[   22.665178]  allocated 120-byte region [fff00000c6649400, fff00000c6649478)
[   22.665580] 
[   22.665790] The buggy address belongs to the physical page:
[   22.666271] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106649
[   22.666666] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   22.667071] page_type: f5(slab)
[   22.667238] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   22.667478] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   22.668050] page dumped because: kasan: bad access detected
[   22.668518] 
[   22.668733] Memory state around the buggy address:
[   22.669085]  fff00000c6649300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   22.669514]  fff00000c6649380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.669752] >fff00000c6649400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   22.670424]                                                                 ^
[   22.670795]  fff00000c6649480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.671266]  fff00000c6649500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.671701] ==================================================================

[   16.362892] ==================================================================
[   16.364133] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x2e/0x1d0
[   16.364524] Write of size 121 at addr ffff888102adde00 by task kunit_try_catch/293
[   16.365217] 
[   16.365439] CPU: 0 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   16.365497] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.365511] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.365535] Call Trace:
[   16.365558]  <TASK>
[   16.365624]  dump_stack_lvl+0x73/0xb0
[   16.365657]  print_report+0xd1/0x650
[   16.365683]  ? __virt_addr_valid+0x1db/0x2d0
[   16.365708]  ? strncpy_from_user+0x2e/0x1d0
[   16.365728]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.365762]  ? strncpy_from_user+0x2e/0x1d0
[   16.365783]  kasan_report+0x140/0x180
[   16.365806]  ? strncpy_from_user+0x2e/0x1d0
[   16.365832]  kasan_check_range+0x10c/0x1c0
[   16.365867]  __kasan_check_write+0x18/0x20
[   16.365890]  strncpy_from_user+0x2e/0x1d0
[   16.365910]  ? __kasan_check_read+0x15/0x20
[   16.365935]  copy_user_test_oob+0x761/0x10f0
[   16.365962]  ? __pfx_copy_user_test_oob+0x10/0x10
[   16.365985]  ? finish_task_switch.isra.0+0x153/0x700
[   16.366010]  ? __switch_to+0x5d9/0xf60
[   16.366038]  ? __schedule+0xce8/0x2840
[   16.366065]  ? __pfx_read_tsc+0x10/0x10
[   16.366088]  ? ktime_get_ts64+0x86/0x230
[   16.366114]  kunit_try_run_case+0x1a6/0x480
[   16.366139]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.366161]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   16.366183]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.366210]  ? __kthread_parkme+0x82/0x160
[   16.366233]  ? preempt_count_sub+0x50/0x80
[   16.366258]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.366281]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.366309]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.366336]  kthread+0x324/0x6e0
[   16.366358]  ? trace_preempt_on+0x20/0xc0
[   16.366383]  ? __pfx_kthread+0x10/0x10
[   16.366405]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.366430]  ? calculate_sigpending+0x7b/0xa0
[   16.366453]  ? __pfx_kthread+0x10/0x10
[   16.366476]  ret_from_fork+0x41/0x80
[   16.366496]  ? __pfx_kthread+0x10/0x10
[   16.366519]  ret_from_fork_asm+0x1a/0x30
[   16.366552]  </TASK>
[   16.366564] 
[   16.377712] Allocated by task 293:
[   16.377955]  kasan_save_stack+0x45/0x70
[   16.378345]  kasan_save_track+0x18/0x40
[   16.378648]  kasan_save_alloc_info+0x3b/0x50
[   16.378866]  __kasan_kmalloc+0xb7/0xc0
[   16.379229]  __kmalloc_noprof+0x1ca/0x500
[   16.379476]  kunit_kmalloc_array+0x25/0x60
[   16.379787]  copy_user_test_oob+0xac/0x10f0
[   16.380133]  kunit_try_run_case+0x1a6/0x480
[   16.380473]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.380711]  kthread+0x324/0x6e0
[   16.380882]  ret_from_fork+0x41/0x80
[   16.381253]  ret_from_fork_asm+0x1a/0x30
[   16.381495] 
[   16.381592] The buggy address belongs to the object at ffff888102adde00
[   16.381592]  which belongs to the cache kmalloc-128 of size 128
[   16.382627] The buggy address is located 0 bytes inside of
[   16.382627]  allocated 120-byte region [ffff888102adde00, ffff888102adde78)
[   16.383327] 
[   16.383560] The buggy address belongs to the physical page:
[   16.383937] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102add
[   16.384460] flags: 0x200000000000000(node=0|zone=2)
[   16.384806] page_type: f5(slab)
[   16.384996] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   16.385655] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.386180] page dumped because: kasan: bad access detected
[   16.386441] 
[   16.386534] Memory state around the buggy address:
[   16.386743]  ffff888102addd00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.387035]  ffff888102addd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.387323] >ffff888102adde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.387610]                                                                 ^
[   16.388252]  ffff888102adde80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.388756]  ffff888102addf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.389251] ==================================================================
[   16.390631] ==================================================================
[   16.391163] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x1a5/0x1d0
[   16.391522] Write of size 1 at addr ffff888102adde78 by task kunit_try_catch/293
[   16.391828] 
[   16.391929] CPU: 0 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   16.391975] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.391990] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.392013] Call Trace:
[   16.392036]  <TASK>
[   16.392059]  dump_stack_lvl+0x73/0xb0
[   16.392087]  print_report+0xd1/0x650
[   16.392110]  ? __virt_addr_valid+0x1db/0x2d0
[   16.392135]  ? strncpy_from_user+0x1a5/0x1d0
[   16.392156]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.392183]  ? strncpy_from_user+0x1a5/0x1d0
[   16.392204]  kasan_report+0x140/0x180
[   16.392226]  ? strncpy_from_user+0x1a5/0x1d0
[   16.392252]  __asan_report_store1_noabort+0x1b/0x30
[   16.392276]  strncpy_from_user+0x1a5/0x1d0
[   16.392299]  copy_user_test_oob+0x761/0x10f0
[   16.392325]  ? __pfx_copy_user_test_oob+0x10/0x10
[   16.392348]  ? finish_task_switch.isra.0+0x153/0x700
[   16.392373]  ? __switch_to+0x5d9/0xf60
[   16.392401]  ? __schedule+0xce8/0x2840
[   16.392427]  ? __pfx_read_tsc+0x10/0x10
[   16.392451]  ? ktime_get_ts64+0x86/0x230
[   16.392479]  kunit_try_run_case+0x1a6/0x480
[   16.392505]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.392528]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   16.392550]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.392576]  ? __kthread_parkme+0x82/0x160
[   16.392600]  ? preempt_count_sub+0x50/0x80
[   16.392626]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.392650]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.392677]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.392704]  kthread+0x324/0x6e0
[   16.392727]  ? trace_preempt_on+0x20/0xc0
[   16.392751]  ? __pfx_kthread+0x10/0x10
[   16.392775]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.392798]  ? calculate_sigpending+0x7b/0xa0
[   16.392821]  ? __pfx_kthread+0x10/0x10
[   16.392855]  ret_from_fork+0x41/0x80
[   16.392875]  ? __pfx_kthread+0x10/0x10
[   16.392897]  ret_from_fork_asm+0x1a/0x30
[   16.392930]  </TASK>
[   16.392942] 
[   16.400175] Allocated by task 293:
[   16.400320]  kasan_save_stack+0x45/0x70
[   16.400525]  kasan_save_track+0x18/0x40
[   16.400715]  kasan_save_alloc_info+0x3b/0x50
[   16.400933]  __kasan_kmalloc+0xb7/0xc0
[   16.401118]  __kmalloc_noprof+0x1ca/0x500
[   16.401361]  kunit_kmalloc_array+0x25/0x60
[   16.401507]  copy_user_test_oob+0xac/0x10f0
[   16.401654]  kunit_try_run_case+0x1a6/0x480
[   16.401806]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.402087]  kthread+0x324/0x6e0
[   16.402262]  ret_from_fork+0x41/0x80
[   16.402448]  ret_from_fork_asm+0x1a/0x30
[   16.402649] 
[   16.402746] The buggy address belongs to the object at ffff888102adde00
[   16.402746]  which belongs to the cache kmalloc-128 of size 128
[   16.403289] The buggy address is located 0 bytes to the right of
[   16.403289]  allocated 120-byte region [ffff888102adde00, ffff888102adde78)
[   16.403658] 
[   16.403733] The buggy address belongs to the physical page:
[   16.403995] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102add
[   16.404351] flags: 0x200000000000000(node=0|zone=2)
[   16.404601] page_type: f5(slab)
[   16.404771] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   16.405183] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.405471] page dumped because: kasan: bad access detected
[   16.405642] 
[   16.405713] Memory state around the buggy address:
[   16.405888]  ffff888102addd00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.406342]  ffff888102addd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.406661] >ffff888102adde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.406990]                                                                 ^
[   16.407466]  ffff888102adde80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.407752]  ffff888102addf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.408044] ==================================================================