Hay
Date
June 7, 2025, 10:40 a.m.

Environment
qemu-arm64
qemu-x86_64

[   25.754660] ==================================================================
[   25.759629] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   25.760781] Read of size 1 at addr ffff800080b87c2a by task kunit_try_catch/238
[   25.763908] 
[   25.764357] CPU: 1 UID: 0 PID: 238 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   25.764553] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.764614] Hardware name: linux,dummy-virt (DT)
[   25.764690] Call trace:
[   25.764743]  show_stack+0x20/0x38 (C)
[   25.765477]  dump_stack_lvl+0x8c/0xd0
[   25.765619]  print_report+0x310/0x608
[   25.765730]  kasan_report+0xdc/0x128
[   25.765842]  __asan_report_load1_noabort+0x20/0x30
[   25.765976]  kasan_stack_oob+0x238/0x270
[   25.766086]  kunit_try_run_case+0x170/0x3f0
[   25.766212]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.766339]  kthread+0x318/0x620
[   25.766442]  ret_from_fork+0x10/0x20
[   25.766557] 
[   25.779196] The buggy address belongs to stack of task kunit_try_catch/238
[   25.779847]  and is located at offset 138 in frame:
[   25.780621]  kasan_stack_oob+0x0/0x270
[   25.783041] 
[   25.783864] This frame has 4 objects:
[   25.784546]  [48, 49) '__assertion'
[   25.784681]  [64, 72) 'array'
[   25.786504]  [96, 112) '__assertion'
[   25.787604]  [128, 138) 'stack_array'
[   25.788781] 
[   25.791098] The buggy address belongs to the virtual mapping at
[   25.791098]  [ffff800080b80000, ffff800080b89000) created by:
[   25.791098]  kernel_clone+0x150/0x7a8
[   25.793781] 
[   25.794045] The buggy address belongs to the physical page:
[   25.794492] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065dc
[   25.795103] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   25.795655] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   25.799309] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.800920] page dumped because: kasan: bad access detected
[   25.802999] 
[   25.803880] Memory state around the buggy address:
[   25.804775]  ffff800080b87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.805580]  ffff800080b87b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   25.807254] >ffff800080b87c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   25.808361]                                   ^
[   25.810388]  ffff800080b87c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   25.811594]  ffff800080b87d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   25.812184] ==================================================================

[   20.027385] ==================================================================
[   20.028515] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b7/0x300
[   20.029043] Read of size 1 at addr ffff888102dbfd02 by task kunit_try_catch/257
[   20.029548] 
[   20.029763] CPU: 1 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G    B            N 6.14.11-rc1 #1
[   20.029880] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.029918] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.029966] Call Trace:
[   20.030011]  <TASK>
[   20.030049]  dump_stack_lvl+0x73/0xb0
[   20.030118]  print_report+0xd1/0x650
[   20.030171]  ? __virt_addr_valid+0x1db/0x2d0
[   20.030229]  ? kasan_stack_oob+0x2b7/0x300
[   20.030281]  ? kasan_addr_to_slab+0x11/0xa0
[   20.030331]  ? kasan_stack_oob+0x2b7/0x300
[   20.030385]  kasan_report+0x140/0x180
[   20.030443]  ? kasan_stack_oob+0x2b7/0x300
[   20.030509]  __asan_report_load1_noabort+0x18/0x20
[   20.030573]  kasan_stack_oob+0x2b7/0x300
[   20.030628]  ? __pfx_kasan_stack_oob+0x10/0x10
[   20.030672]  ? finish_task_switch.isra.0+0x153/0x700
[   20.030727]  ? __switch_to+0x5d9/0xf60
[   20.030793]  ? __schedule+0xce8/0x2840
[   20.030850]  ? __pfx_read_tsc+0x10/0x10
[   20.030926]  ? ktime_get_ts64+0x86/0x230
[   20.030985]  kunit_try_run_case+0x1a6/0x480
[   20.031041]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.031088]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   20.031139]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.031193]  ? __kthread_parkme+0x82/0x160
[   20.031248]  ? preempt_count_sub+0x50/0x80
[   20.031302]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.031357]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.031424]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.031482]  kthread+0x324/0x6e0
[   20.031530]  ? trace_preempt_on+0x20/0xc0
[   20.031589]  ? __pfx_kthread+0x10/0x10
[   20.031631]  ? _raw_spin_unlock_irq+0x47/0x80
[   20.031664]  ? calculate_sigpending+0x7b/0xa0
[   20.031707]  ? __pfx_kthread+0x10/0x10
[   20.031736]  ret_from_fork+0x41/0x80
[   20.031762]  ? __pfx_kthread+0x10/0x10
[   20.031790]  ret_from_fork_asm+0x1a/0x30
[   20.031831]  </TASK>
[   20.031848] 
[   20.046304] The buggy address belongs to stack of task kunit_try_catch/257
[   20.047162]  and is located at offset 138 in frame:
[   20.047650]  kasan_stack_oob+0x0/0x300
[   20.049135] 
[   20.049243] This frame has 4 objects:
[   20.049939]  [48, 49) '__assertion'
[   20.050091]  [64, 72) 'array'
[   20.050490]  [96, 112) '__assertion'
[   20.050767]  [128, 138) 'stack_array'
[   20.051053] 
[   20.052203] The buggy address belongs to the physical page:
[   20.052527] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102dbf
[   20.053175] flags: 0x200000000000000(node=0|zone=2)
[   20.053495] raw: 0200000000000000 ffffea00040b6fc8 ffffea00040b6fc8 0000000000000000
[   20.054072] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   20.054950] page dumped because: kasan: bad access detected
[   20.056117] 
[   20.056594] Memory state around the buggy address:
[   20.057297]  ffff888102dbfc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   20.058018]  ffff888102dbfc80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   20.058754] >ffff888102dbfd00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   20.059340]                    ^
[   20.059678]  ffff888102dbfd80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   20.060256]  ffff888102dbfe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.061085] ==================================================================