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

Environment
qemu-arm64
qemu-x86_64

[   23.760559] ==================================================================
[   23.761942] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x240/0x278
[   23.762692] Read of size 1 at addr ffff800080ba7cba by task kunit_try_catch/237
[   23.763429] 
[   23.763951] CPU: 1 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   23.764155] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.764236] Hardware name: linux,dummy-virt (DT)
[   23.764319] Call trace:
[   23.764389]  dump_backtrace+0x9c/0x128
[   23.764509]  show_stack+0x20/0x38
[   23.764618]  dump_stack_lvl+0x8c/0xd0
[   23.764736]  print_report+0x310/0x5f0
[   23.764861]  kasan_report+0xdc/0x128
[   23.764990]  __asan_report_load1_noabort+0x20/0x30
[   23.765113]  kasan_stack_oob+0x240/0x278
[   23.765171]  kunit_try_run_case+0x170/0x3f0
[   23.765219]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.765273]  kthread+0x24c/0x2d0
[   23.765319]  ret_from_fork+0x10/0x20
[   23.765365] 
[   23.773066] The buggy address belongs to stack of task kunit_try_catch/237
[   23.773973]  and is located at offset 138 in frame:
[   23.774578]  kasan_stack_oob+0x0/0x278
[   23.775330] 
[   23.776253] This frame has 4 objects:
[   23.777169]  [48, 49) '__assertion'
[   23.777282]  [64, 72) 'array'
[   23.777657]  [96, 112) '__assertion'
[   23.778125]  [128, 138) 'stack_array'
[   23.778635] 
[   23.779291] The buggy address belongs to the virtual mapping at
[   23.779291]  [ffff800080ba0000, ffff800080ba9000) created by:
[   23.779291]  kernel_clone+0x150/0x7a8
[   23.780809] 
[   23.781193] The buggy address belongs to the physical page:
[   23.781849] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104206
[   23.782703] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   23.783469] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   23.785054] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   23.785927] page dumped because: kasan: bad access detected
[   23.786557] 
[   23.786909] Memory state around the buggy address:
[   23.787750]  ffff800080ba7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.788612]  ffff800080ba7c00: 00 00 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2
[   23.789442] >ffff800080ba7c80: f2 f2 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00
[   23.790205]                                         ^
[   23.790848]  ffff800080ba7d00: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00
[   23.791629]  ffff800080ba7d80: f2 f2 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00
[   23.793029] ==================================================================

[   20.423787] ==================================================================
[   20.425798] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b7/0x300
[   20.426757] Read of size 1 at addr ffff888102ce7d72 by task kunit_try_catch/254
[   20.428093] 
[   20.428584] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G    B            N 6.12.33-rc1 #1
[   20.428705] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.428742] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.428801] Call Trace:
[   20.428839]  <TASK>
[   20.428939]  dump_stack_lvl+0x73/0xb0
[   20.429050]  print_report+0xd1/0x640
[   20.429129]  ? __virt_addr_valid+0x1db/0x2d0
[   20.429167]  ? kasan_stack_oob+0x2b7/0x300
[   20.429198]  ? kasan_addr_to_slab+0x11/0xa0
[   20.429256]  ? kasan_stack_oob+0x2b7/0x300
[   20.429291]  kasan_report+0x140/0x180
[   20.429327]  ? kasan_stack_oob+0x2b7/0x300
[   20.429365]  __asan_report_load1_noabort+0x18/0x20
[   20.429398]  kasan_stack_oob+0x2b7/0x300
[   20.429429]  ? __pfx_kasan_stack_oob+0x10/0x10
[   20.429509]  ? finish_task_switch.isra.0+0x153/0x700
[   20.429577]  ? __switch_to+0x5d9/0xf60
[   20.429662]  ? __schedule+0xc49/0x27a0
[   20.429733]  ? __pfx_read_tsc+0x10/0x10
[   20.429780]  ? ktime_get_ts64+0x84/0x230
[   20.429824]  kunit_try_run_case+0x1a6/0x480
[   20.429889]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.429918]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   20.429947]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.429983]  ? __kthread_parkme+0x82/0x160
[   20.430013]  ? preempt_count_sub+0x50/0x80
[   20.430042]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.430070]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.430106]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.430143]  kthread+0x257/0x310
[   20.430169]  ? __pfx_kthread+0x10/0x10
[   20.430196]  ret_from_fork+0x41/0x80
[   20.430248]  ? __pfx_kthread+0x10/0x10
[   20.430276]  ret_from_fork_asm+0x1a/0x30
[   20.430317]  </TASK>
[   20.430332] 
[   20.450787] The buggy address belongs to stack of task kunit_try_catch/254
[   20.452162]  and is located at offset 138 in frame:
[   20.452557]  kasan_stack_oob+0x0/0x300
[   20.453320] 
[   20.453645] This frame has 4 objects:
[   20.454086]  [48, 49) '__assertion'
[   20.454156]  [64, 72) 'array'
[   20.454598]  [96, 112) '__assertion'
[   20.455030]  [128, 138) 'stack_array'
[   20.455688] 
[   20.456959] The buggy address belongs to the physical page:
[   20.457455] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ce7
[   20.458529] flags: 0x200000000000000(node=0|zone=2)
[   20.459084] raw: 0200000000000000 ffffea00040b39c8 ffffea00040b39c8 0000000000000000
[   20.460155] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   20.461137] page dumped because: kasan: bad access detected
[   20.461590] 
[   20.462182] Memory state around the buggy address:
[   20.462502]  ffff888102ce7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.463129]  ffff888102ce7c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
[   20.464390] >ffff888102ce7d00: f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00 02 f3
[   20.465150]                                                              ^
[   20.466168]  ffff888102ce7d80: f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
[   20.467106]  ffff888102ce7e00: f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00 00 00
[   20.467749] ==================================================================