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Date
July 20, 2025, 11:12 p.m.

Environment
qemu-arm64
qemu-x86_64 

[   18.776584] ==================================================================
[   18.776647] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340
[   18.776703] Read of size 1 at addr ffff8000809f7b4a by task kunit_try_catch/253
[   18.776756] 
[   18.776787] CPU: 1 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT 
[   18.776872] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.776918] Hardware name: linux,dummy-virt (DT)
[   18.776954] Call trace:
[   18.777221]  show_stack+0x20/0x38 (C)
[   18.777706]  dump_stack_lvl+0x8c/0xd0
[   18.778055]  print_report+0x310/0x5d0
[   18.778106]  kasan_report+0xdc/0x128
[   18.778154]  __asan_report_load1_noabort+0x20/0x30
[   18.778208]  kasan_alloca_oob_right+0x2dc/0x340
[   18.778260]  kunit_try_run_case+0x170/0x3f0
[   18.778309]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.778365]  kthread+0x328/0x630
[   18.778780]  ret_from_fork+0x10/0x20
[   18.779067] 
[   18.779091] The buggy address belongs to stack of task kunit_try_catch/253
[   18.779212] 
[   18.779319] The buggy address ffff8000809f7b4a belongs to a vmalloc virtual mapping
[   18.779500] The buggy address belongs to the physical page:
[   18.779535] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107836
[   18.779636] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.779784] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   18.779975] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   18.780064] page dumped because: kasan: bad access detected
[   18.780209] 
[   18.780232] Memory state around the buggy address:
[   18.780277]  ffff8000809f7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.780335]  ffff8000809f7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.780381] >ffff8000809f7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   18.780422]                                               ^
[   18.780495]  ffff8000809f7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   18.780701]  ffff8000809f7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   18.780891] ==================================================================
Metadata Full log Test run details 

[   18.969968] ==================================================================
[   18.970037] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340
[   18.970097] Read of size 1 at addr ffff800080a77b4a by task kunit_try_catch/253
[   18.970151] 
[   18.970684] CPU: 1 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT 
[   18.971142] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.971456] Hardware name: linux,dummy-virt (DT)
[   18.971576] Call trace:
[   18.971750]  show_stack+0x20/0x38 (C)
[   18.971940]  dump_stack_lvl+0x8c/0xd0
[   18.971993]  print_report+0x310/0x5d0
[   18.972043]  kasan_report+0xdc/0x128
[   18.972091]  __asan_report_load1_noabort+0x20/0x30
[   18.972146]  kasan_alloca_oob_right+0x2dc/0x340
[   18.972197]  kunit_try_run_case+0x170/0x3f0
[   18.972758]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.973305]  kthread+0x328/0x630
[   18.973408]  ret_from_fork+0x10/0x20
[   18.973600] 
[   18.973636] The buggy address belongs to stack of task kunit_try_catch/253
[   18.973989] 
[   18.974022] The buggy address ffff800080a77b4a belongs to a vmalloc virtual mapping
[   18.974347] The buggy address belongs to the physical page:
[   18.974507] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065c4
[   18.974708] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.975187] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   18.975370] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   18.975673] page dumped because: kasan: bad access detected
[   18.975713] 
[   18.975734] Memory state around the buggy address:
[   18.975771]  ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.975818]  ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.975866] >ffff800080a77b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   18.976256]                                               ^
[   18.976646]  ffff800080a77b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   18.976746]  ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   18.976962] ==================================================================
Metadata Full log Test run details 

[   14.551804] ==================================================================
[   14.552347] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390
[   14.552781] Read of size 1 at addr ffff8881038e7c4a by task kunit_try_catch/271
[   14.554147] 
[   14.554250] CPU: 1 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT(voluntary) 
[   14.554298] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.554310] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.554332] Call Trace:
[   14.554347]  <TASK>
[   14.554366]  dump_stack_lvl+0x73/0xb0
[   14.554414]  print_report+0xd1/0x610
[   14.554438]  ? __virt_addr_valid+0x1db/0x2d0
[   14.554463]  ? kasan_alloca_oob_right+0x329/0x390
[   14.554486]  ? kasan_addr_to_slab+0x11/0xa0
[   14.554507]  ? kasan_alloca_oob_right+0x329/0x390
[   14.554530]  kasan_report+0x141/0x180
[   14.554552]  ? kasan_alloca_oob_right+0x329/0x390
[   14.554581]  __asan_report_load1_noabort+0x18/0x20
[   14.554605]  kasan_alloca_oob_right+0x329/0x390
[   14.554628]  ? __pfx_sched_clock_cpu+0x10/0x10
[   14.554652]  ? finish_task_switch.isra.0+0x153/0x700
[   14.554676]  ? rt_mutex_adjust_prio_chain+0x195e/0x20e0
[   14.554699]  ? trace_hardirqs_on+0x37/0xe0
[   14.554725]  ? __pfx_kasan_alloca_oob_right+0x10/0x10
[   14.554751]  ? __schedule+0x10c6/0x2b60
[   14.554773]  ? __pfx_read_tsc+0x10/0x10
[   14.554794]  ? ktime_get_ts64+0x86/0x230
[   14.554819]  kunit_try_run_case+0x1a5/0x480
[   14.554847]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.554870]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.554894]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.554918]  ? __kthread_parkme+0x82/0x180
[   14.554939]  ? preempt_count_sub+0x50/0x80
[   14.554964]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.554989]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.555012]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.555049]  kthread+0x337/0x6f0
[   14.555069]  ? trace_preempt_on+0x20/0xc0
[   14.555091]  ? __pfx_kthread+0x10/0x10
[   14.555112]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.555210]  ? calculate_sigpending+0x7b/0xa0
[   14.555237]  ? __pfx_kthread+0x10/0x10
[   14.555299]  ret_from_fork+0x116/0x1d0
[   14.555321]  ? __pfx_kthread+0x10/0x10
[   14.555343]  ret_from_fork_asm+0x1a/0x30
[   14.555387]  </TASK>
[   14.555408] 
[   14.570881] The buggy address belongs to stack of task kunit_try_catch/271
[   14.571496] 
[   14.571577] The buggy address belongs to the physical page:
[   14.571756] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038e7
[   14.572003] flags: 0x200000000000000(node=0|zone=2)
[   14.572646] raw: 0200000000000000 ffffea00040e39c8 ffffea00040e39c8 0000000000000000
[   14.573440] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   14.574182] page dumped because: kasan: bad access detected
[   14.574886] 
[   14.575131] Memory state around the buggy address:
[   14.575602]  ffff8881038e7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.575827]  ffff8881038e7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.576046] >ffff8881038e7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   14.576261]                                               ^
[   14.576580]  ffff8881038e7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   14.577331]  ffff8881038e7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.578102] ==================================================================
Metadata Full log Test run details 

[   14.643525] ==================================================================
[   14.645009] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390
[   14.645563] Read of size 1 at addr ffff888103a1fc4a by task kunit_try_catch/271
[   14.646171] 
[   14.646507] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT(voluntary) 
[   14.646559] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.646571] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.646690] Call Trace:
[   14.646706]  <TASK>
[   14.646723]  dump_stack_lvl+0x73/0xb0
[   14.646756]  print_report+0xd1/0x610
[   14.646779]  ? __virt_addr_valid+0x1db/0x2d0
[   14.646803]  ? kasan_alloca_oob_right+0x329/0x390
[   14.646825]  ? kasan_addr_to_slab+0x11/0xa0
[   14.646846]  ? kasan_alloca_oob_right+0x329/0x390
[   14.646920]  kasan_report+0x141/0x180
[   14.646943]  ? kasan_alloca_oob_right+0x329/0x390
[   14.646971]  __asan_report_load1_noabort+0x18/0x20
[   14.646995]  kasan_alloca_oob_right+0x329/0x390
[   14.647018]  ? __pfx_sched_clock_cpu+0x10/0x10
[   14.647040]  ? finish_task_switch.isra.0+0x153/0x700
[   14.647064]  ? rt_mutex_adjust_prio_chain+0x195e/0x20e0
[   14.647088]  ? trace_hardirqs_on+0x37/0xe0
[   14.647112]  ? __pfx_kasan_alloca_oob_right+0x10/0x10
[   14.647138]  ? __schedule+0x10c6/0x2b60
[   14.647171]  ? __pfx_read_tsc+0x10/0x10
[   14.647193]  ? ktime_get_ts64+0x86/0x230
[   14.647217]  kunit_try_run_case+0x1a5/0x480
[   14.647243]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.647266]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.647290]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.647327]  ? __kthread_parkme+0x82/0x180
[   14.647348]  ? preempt_count_sub+0x50/0x80
[   14.647371]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.647395]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.647418]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.647442]  kthread+0x337/0x6f0
[   14.647461]  ? trace_preempt_on+0x20/0xc0
[   14.647482]  ? __pfx_kthread+0x10/0x10
[   14.647502]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.647524]  ? calculate_sigpending+0x7b/0xa0
[   14.647548]  ? __pfx_kthread+0x10/0x10
[   14.647569]  ret_from_fork+0x116/0x1d0
[   14.647587]  ? __pfx_kthread+0x10/0x10
[   14.647607]  ret_from_fork_asm+0x1a/0x30
[   14.647638]  </TASK>
[   14.647649] 
[   14.659725] The buggy address belongs to stack of task kunit_try_catch/271
[   14.660165] 
[   14.660270] The buggy address belongs to the physical page:
[   14.660594] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a1f
[   14.660921] flags: 0x200000000000000(node=0|zone=2)
[   14.661565] raw: 0200000000000000 ffffea00040e87c8 ffffea00040e87c8 0000000000000000
[   14.661887] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   14.662302] page dumped because: kasan: bad access detected
[   14.662645] 
[   14.662874] Memory state around the buggy address:
[   14.663079]  ffff888103a1fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.663565]  ffff888103a1fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.663981] >ffff888103a1fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   14.664419]                                               ^
[   14.664751]  ffff888103a1fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   14.665220]  ffff888103a1fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   14.665584] ==================================================================
Metadata Full log Test run details