Hay
Date
July 14, 2025, 10:38 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64

[   55.264777] ==================================================================
[   55.273946] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   55.281407] Read of size 1 at addr ffff800089617b5f by task kunit_try_catch/335
[   55.288698] 
[   55.290185] CPU: 6 UID: 0 PID: 335 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   55.290241] Tainted: [B]=BAD_PAGE, [N]=TEST
[   55.290260] Hardware name: WinLink E850-96 board (DT)
[   55.290281] Call trace:
[   55.290295]  show_stack+0x20/0x38 (C)
[   55.290337]  dump_stack_lvl+0x8c/0xd0
[   55.290372]  print_report+0x310/0x5d0
[   55.290401]  kasan_report+0xdc/0x128
[   55.290429]  __asan_report_load1_noabort+0x20/0x30
[   55.290462]  kasan_alloca_oob_left+0x2b8/0x310
[   55.290494]  kunit_try_run_case+0x170/0x3f0
[   55.290531]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   55.290566]  kthread+0x328/0x630
[   55.290597]  ret_from_fork+0x10/0x20
[   55.290635] 
[   55.354496] The buggy address belongs to stack of task kunit_try_catch/335
[   55.361377] 
[   55.362829] The buggy address ffff800089617b5f belongs to a vmalloc virtual mapping
[   55.370471] The buggy address belongs to the physical page:
[   55.376027] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x88479d
[   55.384012] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   55.390532] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   55.398252] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   55.405972] page dumped because: kasan: bad access detected
[   55.411525] 
[   55.413001] Memory state around the buggy address:
[   55.417782]  ffff800089617a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   55.424984]  ffff800089617a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   55.432190] >ffff800089617b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   55.439390]                                                     ^
[   55.445470]  ffff800089617b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   55.452676]  ffff800089617c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   55.459877] ==================================================================

[   31.907536] ==================================================================
[   31.907612] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   31.907670] Read of size 1 at addr ffff800080b77b5f by task kunit_try_catch/282
[   31.907722] 
[   31.907756] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6-next-20250714 #1 PREEMPT 
[   31.907870] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.907899] Hardware name: linux,dummy-virt (DT)
[   31.907933] Call trace:
[   31.907965]  show_stack+0x20/0x38 (C)
[   31.908017]  dump_stack_lvl+0x8c/0xd0
[   31.908923]  print_report+0x310/0x5d0
[   31.909399]  kasan_report+0xdc/0x128
[   31.909583]  __asan_report_load1_noabort+0x20/0x30
[   31.909718]  kasan_alloca_oob_left+0x2b8/0x310
[   31.909772]  kunit_try_run_case+0x170/0x3f0
[   31.910008]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.910131]  kthread+0x328/0x630
[   31.910302]  ret_from_fork+0x10/0x20
[   31.910445] 
[   31.910516] The buggy address belongs to stack of task kunit_try_catch/282
[   31.910664] 
[   31.910706] The buggy address ffff800080b77b5f belongs to a vmalloc virtual mapping
[   31.911071] The buggy address belongs to the physical page:
[   31.911152] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b1d
[   31.911277] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   31.911395] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   31.911551] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   31.911640] page dumped because: kasan: bad access detected
[   31.911965] 
[   31.912098] Memory state around the buggy address:
[   31.912164]  ffff800080b77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.912308]  ffff800080b77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.912390] >ffff800080b77b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   31.912554]                                                     ^
[   31.912763]  ffff800080b77b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   31.912828]  ffff800080b77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   31.913156] ==================================================================

[   26.185456] ==================================================================
[   26.185933] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   26.186637] Read of size 1 at addr ffff8881061a7c3f by task kunit_try_catch/300
[   26.187160] 
[   26.187306] CPU: 0 UID: 0 PID: 300 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc6-next-20250714 #1 PREEMPT(voluntary) 
[   26.187379] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   26.187408] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.187432] Call Trace:
[   26.187444]  <TASK>
[   26.187464]  dump_stack_lvl+0x73/0xb0
[   26.187510]  print_report+0xd1/0x610
[   26.187533]  ? __virt_addr_valid+0x1db/0x2d0
[   26.187558]  ? kasan_alloca_oob_left+0x320/0x380
[   26.187590]  ? kasan_addr_to_slab+0x11/0xa0
[   26.187611]  ? kasan_alloca_oob_left+0x320/0x380
[   26.187632]  kasan_report+0x141/0x180
[   26.187663]  ? kasan_alloca_oob_left+0x320/0x380
[   26.187689]  __asan_report_load1_noabort+0x18/0x20
[   26.187713]  kasan_alloca_oob_left+0x320/0x380
[   26.187733]  ? update_curr+0x7d/0x7f0
[   26.187769]  ? finish_task_switch.isra.0+0x153/0x700
[   26.187792]  ? __mutex_lock.constprop.0+0x10ee/0x1280
[   26.187846]  ? trace_hardirqs_on+0x37/0xe0
[   26.187871]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   26.187906]  ? __schedule+0x10cc/0x2b60
[   26.187930]  ? __pfx_read_tsc+0x10/0x10
[   26.188028]  ? ktime_get_ts64+0x86/0x230
[   26.188055]  kunit_try_run_case+0x1a5/0x480
[   26.188078]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.188125]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   26.188148]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.188172]  ? __kthread_parkme+0x82/0x180
[   26.188193]  ? preempt_count_sub+0x50/0x80
[   26.188216]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.188238]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.188263]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.188288]  kthread+0x337/0x6f0
[   26.188308]  ? trace_preempt_on+0x20/0xc0
[   26.188329]  ? __pfx_kthread+0x10/0x10
[   26.188349]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.188371]  ? calculate_sigpending+0x7b/0xa0
[   26.188394]  ? __pfx_kthread+0x10/0x10
[   26.188415]  ret_from_fork+0x116/0x1d0
[   26.188433]  ? __pfx_kthread+0x10/0x10
[   26.188454]  ret_from_fork_asm+0x1a/0x30
[   26.188484]  </TASK>
[   26.188496] 
[   26.198290] The buggy address belongs to stack of task kunit_try_catch/300
[   26.198753] 
[   26.198823] The buggy address belongs to the physical page:
[   26.199123] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061a7
[   26.199685] flags: 0x200000000000000(node=0|zone=2)
[   26.199941] raw: 0200000000000000 ffffea00041869c8 ffffea00041869c8 0000000000000000
[   26.200164] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   26.200426] page dumped because: kasan: bad access detected
[   26.200739] 
[   26.200832] Memory state around the buggy address:
[   26.201111]  ffff8881061a7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.201371]  ffff8881061a7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.201745] >ffff8881061a7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   26.202068]                                         ^
[   26.202539]  ffff8881061a7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   26.202988]  ffff8881061a7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   26.203432] ==================================================================