Hay
Date
July 8, 2025, 7:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   21.528292] ==================================================================
[   21.528698] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   21.528904] Read of size 1 at addr ffff800080a57c2a by task kunit_try_catch/249
[   21.528957] 
[   21.529125] CPU: 0 UID: 0 PID: 249 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT 
[   21.529212] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.529316] Hardware name: linux,dummy-virt (DT)
[   21.529364] Call trace:
[   21.529434]  show_stack+0x20/0x38 (C)
[   21.529486]  dump_stack_lvl+0x8c/0xd0
[   21.529683]  print_report+0x310/0x608
[   21.529917]  kasan_report+0xdc/0x128
[   21.529990]  __asan_report_load1_noabort+0x20/0x30
[   21.530041]  kasan_stack_oob+0x238/0x270
[   21.530180]  kunit_try_run_case+0x170/0x3f0
[   21.530264]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.530318]  kthread+0x328/0x630
[   21.530412]  ret_from_fork+0x10/0x20
[   21.530670] 
[   21.530765] The buggy address belongs to stack of task kunit_try_catch/249
[   21.530876]  and is located at offset 138 in frame:
[   21.531244]  kasan_stack_oob+0x0/0x270
[   21.531604] 
[   21.531769] This frame has 4 objects:
[   21.532448]  [48, 49) '__assertion'
[   21.532787]  [64, 72) 'array'
[   21.533172]  [96, 112) '__assertion'
[   21.533446]  [128, 138) 'stack_array'
[   21.533638] 
[   21.533767] The buggy address belongs to the virtual mapping at
[   21.533767]  [ffff800080a50000, ffff800080a59000) created by:
[   21.533767]  kernel_clone+0x150/0x7a8
[   21.533893] 
[   21.533956] The buggy address belongs to the physical page:
[   21.534129] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xfff00000c6481948 pfn:0x106481
[   21.534196] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   21.534304] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   21.534449] raw: fff00000c6481948 0000000000000000 00000001ffffffff 0000000000000000
[   21.534545] page dumped because: kasan: bad access detected
[   21.534723] 
[   21.534754] Memory state around the buggy address:
[   21.534818]  ffff800080a57b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.534871]  ffff800080a57b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   21.534916] >ffff800080a57c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   21.534956]                                   ^
[   21.534991]  ffff800080a57c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   21.535053]  ffff800080a57d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   21.535094] ==================================================================

[   14.809345] ==================================================================
[   14.810366] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300
[   14.810713] Read of size 1 at addr ffff888103a7fd02 by task kunit_try_catch/266
[   14.811120] 
[   14.811511] CPU: 1 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   14.811561] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.811573] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.811597] Call Trace:
[   14.811611]  <TASK>
[   14.811628]  dump_stack_lvl+0x73/0xb0
[   14.811658]  print_report+0xd1/0x650
[   14.811681]  ? __virt_addr_valid+0x1db/0x2d0
[   14.811704]  ? kasan_stack_oob+0x2b5/0x300
[   14.811723]  ? kasan_addr_to_slab+0x11/0xa0
[   14.811744]  ? kasan_stack_oob+0x2b5/0x300
[   14.811764]  kasan_report+0x141/0x180
[   14.811786]  ? kasan_stack_oob+0x2b5/0x300
[   14.811810]  __asan_report_load1_noabort+0x18/0x20
[   14.811834]  kasan_stack_oob+0x2b5/0x300
[   14.811854]  ? __pfx_kasan_stack_oob+0x10/0x10
[   14.811872]  ? finish_task_switch.isra.0+0x153/0x700
[   14.811895]  ? __switch_to+0x47/0xf50
[   14.811922]  ? __schedule+0x10cc/0x2b60
[   14.811945]  ? __pfx_read_tsc+0x10/0x10
[   14.811966]  ? ktime_get_ts64+0x86/0x230
[   14.811991]  kunit_try_run_case+0x1a5/0x480
[   14.812014]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.812036]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.812073]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.812097]  ? __kthread_parkme+0x82/0x180
[   14.812116]  ? preempt_count_sub+0x50/0x80
[   14.812140]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.812162]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.812186]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.812208]  kthread+0x337/0x6f0
[   14.812227]  ? trace_preempt_on+0x20/0xc0
[   14.812251]  ? __pfx_kthread+0x10/0x10
[   14.812271]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.812292]  ? calculate_sigpending+0x7b/0xa0
[   14.812316]  ? __pfx_kthread+0x10/0x10
[   14.812337]  ret_from_fork+0x116/0x1d0
[   14.812356]  ? __pfx_kthread+0x10/0x10
[   14.812375]  ret_from_fork_asm+0x1a/0x30
[   14.812407]  </TASK>
[   14.812420] 
[   14.827438] The buggy address belongs to stack of task kunit_try_catch/266
[   14.827941]  and is located at offset 138 in frame:
[   14.828521]  kasan_stack_oob+0x0/0x300
[   14.829289] 
[   14.829504] This frame has 4 objects:
[   14.830279]  [48, 49) '__assertion'
[   14.830316]  [64, 72) 'array'
[   14.830861]  [96, 112) '__assertion'
[   14.831112]  [128, 138) 'stack_array'
[   14.831656] 
[   14.831859] The buggy address belongs to the physical page:
[   14.832054] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a7f
[   14.833442] flags: 0x200000000000000(node=0|zone=2)
[   14.833969] raw: 0200000000000000 ffffea00040e9fc8 ffffea00040e9fc8 0000000000000000
[   14.834990] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   14.835433] page dumped because: kasan: bad access detected
[   14.835678] 
[   14.835780] Memory state around the buggy address:
[   14.835997]  ffff888103a7fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.836292]  ffff888103a7fc80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   14.836621] >ffff888103a7fd00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.836882]                    ^
[   14.837547]  ffff888103a7fd80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   14.837999]  ffff888103a7fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.838509] ==================================================================