Hay
Date
June 2, 2025, 2:10 p.m.

Environment
qemu-arm64
qemu-x86_64

[   21.909180] ==================================================================
[   21.910404] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x240/0x278
[   21.911102] Read of size 1 at addr ffff800080ba7cba by task kunit_try_catch/236
[   21.912169] 
[   21.912561] CPU: 1 UID: 0 PID: 236 Comm: kunit_try_catch Tainted: G    B            N 6.12.32-rc1 #1
[   21.912783] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.912856] Hardware name: linux,dummy-virt (DT)
[   21.912937] Call trace:
[   21.913091]  dump_backtrace+0x9c/0x128
[   21.913235]  show_stack+0x20/0x38
[   21.913342]  dump_stack_lvl+0x8c/0xd0
[   21.913397]  print_report+0x310/0x5f0
[   21.913443]  kasan_report+0xdc/0x128
[   21.913533]  __asan_report_load1_noabort+0x20/0x30
[   21.913586]  kasan_stack_oob+0x240/0x278
[   21.913631]  kunit_try_run_case+0x170/0x3f0
[   21.913677]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.913726]  kthread+0x24c/0x2d0
[   21.913769]  ret_from_fork+0x10/0x20
[   21.913817] 
[   21.920040] The buggy address belongs to stack of task kunit_try_catch/236
[   21.920782]  and is located at offset 138 in frame:
[   21.921251]  kasan_stack_oob+0x0/0x278
[   21.921957] 
[   21.922233] This frame has 4 objects:
[   21.922686]  [48, 49) '__assertion'
[   21.922831]  [64, 72) 'array'
[   21.923499]  [96, 112) '__assertion'
[   21.923926]  [128, 138) 'stack_array'
[   21.924445] 
[   21.925090] The buggy address belongs to the virtual mapping at
[   21.925090]  [ffff800080ba0000, ffff800080ba9000) created by:
[   21.925090]  kernel_clone+0x150/0x7a8
[   21.926209] 
[   21.926502] The buggy address belongs to the physical page:
[   21.927044] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106d24
[   21.928071] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   21.929080] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   21.929507] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.929862] page dumped because: kasan: bad access detected
[   21.930161] 
[   21.930339] Memory state around the buggy address:
[   21.930626]  ffff800080ba7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.931579]  ffff800080ba7c00: 00 00 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2
[   21.932619] >ffff800080ba7c80: f2 f2 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00
[   21.932874]                                         ^
[   21.933067]  ffff800080ba7d00: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00
[   21.933395]  ffff800080ba7d80: f2 f2 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00
[   21.934267] ==================================================================

[   13.934755] ==================================================================
[   13.935380] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b7/0x300
[   13.935712] Read of size 1 at addr ffff888102a77d72 by task kunit_try_catch/254
[   13.935900] 
[   13.936033] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G    B            N 6.12.32-rc1 #1
[   13.936079] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.936092] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.936111] Call Trace:
[   13.936125]  <TASK>
[   13.936144]  dump_stack_lvl+0x73/0xb0
[   13.936171]  print_report+0xd1/0x640
[   13.936193]  ? __virt_addr_valid+0x1db/0x2d0
[   13.936216]  ? kasan_stack_oob+0x2b7/0x300
[   13.936236]  ? kasan_addr_to_slab+0x11/0xa0
[   13.936256]  ? kasan_stack_oob+0x2b7/0x300
[   13.936276]  kasan_report+0x140/0x180
[   13.936297]  ? kasan_stack_oob+0x2b7/0x300
[   13.936322]  __asan_report_load1_noabort+0x18/0x20
[   13.936341]  kasan_stack_oob+0x2b7/0x300
[   13.936362]  ? __pfx_kasan_stack_oob+0x10/0x10
[   13.936380]  ? finish_task_switch.isra.0+0x153/0x700
[   13.936400]  ? __switch_to+0x5d9/0xf60
[   13.936424]  ? __schedule+0xc49/0x27a0
[   13.936444]  ? __pfx_read_tsc+0x10/0x10
[   13.936462]  ? ktime_get_ts64+0x84/0x230
[   13.936486]  kunit_try_run_case+0x1a6/0x480
[   13.936507]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.936527]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   13.936565]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.936587]  ? __kthread_parkme+0x82/0x160
[   13.936605]  ? preempt_count_sub+0x50/0x80
[   13.936643]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.936670]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.936695]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.936719]  kthread+0x257/0x310
[   13.936737]  ? __pfx_kthread+0x10/0x10
[   13.936754]  ret_from_fork+0x41/0x80
[   13.936772]  ? __pfx_kthread+0x10/0x10
[   13.936789]  ret_from_fork_asm+0x1a/0x30
[   13.936820]  </TASK>
[   13.936830] 
[   13.942883] The buggy address belongs to stack of task kunit_try_catch/254
[   13.943612]  and is located at offset 138 in frame:
[   13.943927]  kasan_stack_oob+0x0/0x300
[   13.944251] 
[   13.944319] This frame has 4 objects:
[   13.944564]  [48, 49) '__assertion'
[   13.944594]  [64, 72) 'array'
[   13.944843]  [96, 112) '__assertion'
[   13.945102]  [128, 138) 'stack_array'
[   13.945330] 
[   13.945533] The buggy address belongs to the physical page:
[   13.945845] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a77
[   13.946389] flags: 0x200000000000000(node=0|zone=2)
[   13.946510] raw: 0200000000000000 ffffea00040a9dc8 ffffea00040a9dc8 0000000000000000
[   13.947095] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   13.947549] page dumped because: kasan: bad access detected
[   13.947743] 
[   13.947870] Memory state around the buggy address:
[   13.948083]  ffff888102a77c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.948301]  ffff888102a77c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
[   13.948555] >ffff888102a77d00: f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00 02 f3
[   13.948871]                                                              ^
[   13.949024]  ffff888102a77d80: f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
[   13.949461]  ffff888102a77e00: f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00 00 00
[   13.949742] ==================================================================