Hay
Date
July 8, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64

[   21.414301] ==================================================================
[   21.414414] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   21.414477] Read of size 1 at addr ffff800080a37c2a by task kunit_try_catch/249
[   21.414778] 
[   21.415052] CPU: 0 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT 
[   21.415186] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.415236] Hardware name: linux,dummy-virt (DT)
[   21.415271] Call trace:
[   21.415312]  show_stack+0x20/0x38 (C)
[   21.415436]  dump_stack_lvl+0x8c/0xd0
[   21.415520]  print_report+0x310/0x608
[   21.415657]  kasan_report+0xdc/0x128
[   21.415774]  __asan_report_load1_noabort+0x20/0x30
[   21.415827]  kasan_stack_oob+0x238/0x270
[   21.415871]  kunit_try_run_case+0x170/0x3f0
[   21.416227]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.416300]  kthread+0x328/0x630
[   21.416379]  ret_from_fork+0x10/0x20
[   21.416453] 
[   21.416565] The buggy address belongs to stack of task kunit_try_catch/249
[   21.416908]  and is located at offset 138 in frame:
[   21.416958]  kasan_stack_oob+0x0/0x270
[   21.417654] 
[   21.417696] This frame has 4 objects:
[   21.418178]  [48, 49) '__assertion'
[   21.418512]  [64, 72) 'array'
[   21.418594]  [96, 112) '__assertion'
[   21.418655]  [128, 138) 'stack_array'
[   21.419153] 
[   21.419309] The buggy address belongs to the virtual mapping at
[   21.419309]  [ffff800080a30000, ffff800080a39000) created by:
[   21.419309]  kernel_clone+0x150/0x7a8
[   21.419573] 
[   21.419623] The buggy address belongs to the physical page:
[   21.419663] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106357
[   21.419716] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   21.420061] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   21.420255] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.420365] page dumped because: kasan: bad access detected
[   21.420545] 
[   21.420586] Memory state around the buggy address:
[   21.420623]  ffff800080a37b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.420675]  ffff800080a37b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   21.420948] >ffff800080a37c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   21.421077]                                   ^
[   21.421210]  ffff800080a37c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   21.421278]  ffff800080a37d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   21.421319] ==================================================================

[   14.343261] ==================================================================
[   14.343911] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300
[   14.344432] Read of size 1 at addr ffff888103abfd02 by task kunit_try_catch/267
[   14.344934] 
[   14.345049] CPU: 1 UID: 0 PID: 267 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   14.345102] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.345115] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.345138] Call Trace:
[   14.345152]  <TASK>
[   14.345171]  dump_stack_lvl+0x73/0xb0
[   14.345208]  print_report+0xd1/0x650
[   14.345233]  ? __virt_addr_valid+0x1db/0x2d0
[   14.345260]  ? kasan_stack_oob+0x2b5/0x300
[   14.345280]  ? kasan_addr_to_slab+0x11/0xa0
[   14.345301]  ? kasan_stack_oob+0x2b5/0x300
[   14.345321]  kasan_report+0x141/0x180
[   14.345344]  ? kasan_stack_oob+0x2b5/0x300
[   14.345368]  __asan_report_load1_noabort+0x18/0x20
[   14.345394]  kasan_stack_oob+0x2b5/0x300
[   14.345415]  ? __pfx_kasan_stack_oob+0x10/0x10
[   14.345435]  ? finish_task_switch.isra.0+0x153/0x700
[   14.345460]  ? __switch_to+0x47/0xf50
[   14.345488]  ? __schedule+0x10cc/0x2b60
[   14.345626]  ? __pfx_read_tsc+0x10/0x10
[   14.345650]  ? ktime_get_ts64+0x86/0x230
[   14.345677]  kunit_try_run_case+0x1a5/0x480
[   14.345709]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.345733]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.345759]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.345784]  ? __kthread_parkme+0x82/0x180
[   14.345807]  ? preempt_count_sub+0x50/0x80
[   14.345831]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.345855]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.345880]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.345906]  kthread+0x337/0x6f0
[   14.345971]  ? trace_preempt_on+0x20/0xc0
[   14.345998]  ? __pfx_kthread+0x10/0x10
[   14.346019]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.346041]  ? calculate_sigpending+0x7b/0xa0
[   14.346067]  ? __pfx_kthread+0x10/0x10
[   14.346088]  ret_from_fork+0x116/0x1d0
[   14.346107]  ? __pfx_kthread+0x10/0x10
[   14.346127]  ret_from_fork_asm+0x1a/0x30
[   14.346159]  </TASK>
[   14.346171] 
[   14.353873] The buggy address belongs to stack of task kunit_try_catch/267
[   14.354465]  and is located at offset 138 in frame:
[   14.354714]  kasan_stack_oob+0x0/0x300
[   14.355006] 
[   14.355132] This frame has 4 objects:
[   14.355391]  [48, 49) '__assertion'
[   14.355414]  [64, 72) 'array'
[   14.355663]  [96, 112) '__assertion'
[   14.355819]  [128, 138) 'stack_array'
[   14.355962] 
[   14.356186] The buggy address belongs to the physical page:
[   14.356454] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103abf
[   14.356821] flags: 0x200000000000000(node=0|zone=2)
[   14.357049] raw: 0200000000000000 ffffea00040eafc8 ffffea00040eafc8 0000000000000000
[   14.357365] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   14.357692] page dumped because: kasan: bad access detected
[   14.357965] 
[   14.358036] Memory state around the buggy address:
[   14.358191]  ffff888103abfc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.358404]  ffff888103abfc80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   14.358763] >ffff888103abfd00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.359076]                    ^
[   14.359238]  ffff888103abfd80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   14.359507]  ffff888103abfe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.359729] ==================================================================