Hay
Date
July 10, 2025, 9:07 a.m.

Environment
qemu-arm64
qemu-x86_64

[   31.701466] ==================================================================
[   31.701557] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   31.701614] Read of size 1 at addr ffff800080a97c2a by task kunit_try_catch/280
[   31.701669] 
[   31.701701] CPU: 0 UID: 0 PID: 280 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250710 #1 PREEMPT 
[   31.701792] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.701822] Hardware name: linux,dummy-virt (DT)
[   31.701855] Call trace:
[   31.701881]  show_stack+0x20/0x38 (C)
[   31.701931]  dump_stack_lvl+0x8c/0xd0
[   31.701979]  print_report+0x310/0x5d0
[   31.702033]  kasan_report+0xdc/0x128
[   31.702092]  __asan_report_load1_noabort+0x20/0x30
[   31.702170]  kasan_stack_oob+0x238/0x270
[   31.702229]  kunit_try_run_case+0x170/0x3f0
[   31.702281]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.702337]  kthread+0x328/0x630
[   31.702390]  ret_from_fork+0x10/0x20
[   31.702447] 
[   31.702508] The buggy address belongs to stack of task kunit_try_catch/280
[   31.702614]  and is located at offset 138 in frame:
[   31.702652]  kasan_stack_oob+0x0/0x270
[   31.703081] 
[   31.703536] This frame has 4 objects:
[   31.703865]  [48, 49) '__assertion'
[   31.704006]  [64, 72) 'array'
[   31.704075]  [96, 112) '__assertion'
[   31.704120]  [128, 138) 'stack_array'
[   31.704454] 
[   31.704528] The buggy address ffff800080a97c2a belongs to a vmalloc virtual mapping
[   31.704595] The buggy address belongs to the physical page:
[   31.704692] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xfff00000c3f530c8 pfn:0x103f53
[   31.704781] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   31.704944] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   31.705022] raw: fff00000c3f530c8 0000000000000000 00000001ffffffff 0000000000000000
[   31.705154] page dumped because: kasan: bad access detected
[   31.705191] 
[   31.705429] Memory state around the buggy address:
[   31.705595]  ffff800080a97b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.705685]  ffff800080a97b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   31.705830] >ffff800080a97c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   31.705908]                                   ^
[   31.706032]  ffff800080a97c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   31.706198]  ffff800080a97d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   31.706244] ==================================================================

[   26.950617] ==================================================================
[   26.951485] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300
[   26.951951] Read of size 1 at addr ffff888106087d02 by task kunit_try_catch/297
[   26.952458] 
[   26.952611] CPU: 0 UID: 0 PID: 297 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) 
[   26.952661] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.952673] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.952695] Call Trace:
[   26.952720]  <TASK>
[   26.952738]  dump_stack_lvl+0x73/0xb0
[   26.952768]  print_report+0xd1/0x610
[   26.952801]  ? __virt_addr_valid+0x1db/0x2d0
[   26.952825]  ? kasan_stack_oob+0x2b5/0x300
[   26.952846]  ? kasan_addr_to_slab+0x11/0xa0
[   26.952877]  ? kasan_stack_oob+0x2b5/0x300
[   26.952898]  kasan_report+0x141/0x180
[   26.952920]  ? kasan_stack_oob+0x2b5/0x300
[   26.952944]  __asan_report_load1_noabort+0x18/0x20
[   26.952968]  kasan_stack_oob+0x2b5/0x300
[   26.952989]  ? __pfx_kasan_stack_oob+0x10/0x10
[   26.953066]  ? __kasan_check_write+0x18/0x20
[   26.953095]  ? queued_spin_lock_slowpath+0x116/0xb40
[   26.953122]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[   26.953146]  ? trace_hardirqs_on+0x37/0xe0
[   26.953168]  ? __pfx_read_tsc+0x10/0x10
[   26.953190]  ? ktime_get_ts64+0x86/0x230
[   26.953215]  kunit_try_run_case+0x1a5/0x480
[   26.953238]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.953259]  ? _raw_spin_lock_irqsave+0xf9/0x100
[   26.953281]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.953305]  ? __kthread_parkme+0x82/0x180
[   26.953326]  ? preempt_count_sub+0x50/0x80
[   26.953350]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.953372]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.953398]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.953424]  kthread+0x337/0x6f0
[   26.953444]  ? trace_preempt_on+0x20/0xc0
[   26.953466]  ? __pfx_kthread+0x10/0x10
[   26.953487]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.953521]  ? calculate_sigpending+0x7b/0xa0
[   26.953545]  ? __pfx_kthread+0x10/0x10
[   26.953568]  ret_from_fork+0x116/0x1d0
[   26.953588]  ? __pfx_kthread+0x10/0x10
[   26.953608]  ret_from_fork_asm+0x1a/0x30
[   26.953640]  </TASK>
[   26.953651] 
[   26.965395] The buggy address belongs to stack of task kunit_try_catch/297
[   26.966167]  and is located at offset 138 in frame:
[   26.966905]  kasan_stack_oob+0x0/0x300
[   26.967182] 
[   26.967278] This frame has 4 objects:
[   26.967475]  [48, 49) '__assertion'
[   26.967511]  [64, 72) 'array'
[   26.967835]  [96, 112) '__assertion'
[   26.968130]  [128, 138) 'stack_array'
[   26.968542] 
[   26.969095] The buggy address belongs to the physical page:
[   26.969586] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106087
[   26.970338] flags: 0x200000000000000(node=0|zone=2)
[   26.971005] raw: 0200000000000000 ffffea00041821c8 ffffea00041821c8 0000000000000000
[   26.971339] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   26.971716] page dumped because: kasan: bad access detected
[   26.972342] 
[   26.972514] Memory state around the buggy address:
[   26.973012]  ffff888106087c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   26.973708]  ffff888106087c80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   26.974114] >ffff888106087d00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   26.974805]                    ^
[   26.974993]  ffff888106087d80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   26.975211]  ffff888106087e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.975422] ==================================================================