Hay
Date
June 26, 2025, 9:10 a.m.

Environment
dragonboard-845c
qemu-arm64
qemu-x86_64

[   50.968079] ==================================================================
[   50.983311] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   50.990285] Read of size 1 at addr ffff8000841b7c2a by task kunit_try_catch/335
[   50.997695] 
[   50.999229] CPU: 0 UID: 0 PID: 335 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250626 #1 PREEMPT 
[   50.999261] Tainted: [B]=BAD_PAGE, [N]=TEST
[   50.999271] Hardware name: Thundercomm Dragonboard 845c (DT)
[   50.999283] Call trace:
[   50.999290]  show_stack+0x20/0x38 (C)
[   50.999311]  dump_stack_lvl+0x8c/0xd0
[   50.999332]  print_report+0x310/0x608
[   50.999352]  kasan_report+0xdc/0x128
[   50.999372]  __asan_report_load1_noabort+0x20/0x30
[   50.999391]  kasan_stack_oob+0x238/0x270
[   50.999409]  kunit_try_run_case+0x170/0x3f0
[   50.999430]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   50.999453]  kthread+0x328/0x630
[   50.999468]  ret_from_fork+0x10/0x20
[   50.999489] 
[   51.064944] The buggy address belongs to stack of task kunit_try_catch/335
[   51.071911]  and is located at offset 138 in frame:
[   51.076857]  kasan_stack_oob+0x0/0x270
[   51.080686] 
[   51.082217] This frame has 4 objects:
[   51.085949]  [48, 49) '__assertion'
[   51.085964]  [64, 72) 'array'
[   51.089511]  [96, 112) '__assertion'
[   51.092540]  [128, 138) 'stack_array'
[   51.096174] 
[   51.101409] The buggy address belongs to the virtual mapping at
[   51.101409]  [ffff8000841b0000, ffff8000841b9000) created by:
[   51.101409]  kernel_clone+0x150/0x7a8
[   51.116891] 
[   51.118426] The buggy address belongs to the physical page:
[   51.124072] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x116e86
[   51.132187] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   51.138814] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   51.146662] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   51.154505] page dumped because: kasan: bad access detected
[   51.160150] 
[   51.161680] Memory state around the buggy address:
[   51.166544]  ffff8000841b7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   51.173868]  ffff8000841b7b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   51.181193] >ffff8000841b7c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   51.188506]                                   ^
[   51.193112]  ffff8000841b7c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   51.200426]  ffff8000841b7d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   51.207743] ==================================================================

[   29.031773] ==================================================================
[   29.031851] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   29.031909] Read of size 1 at addr ffff800080b17c2a by task kunit_try_catch/261
[   29.031972] 
[   29.032001] CPU: 0 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250626 #1 PREEMPT 
[   29.032103] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.032130] Hardware name: linux,dummy-virt (DT)
[   29.032158] Call trace:
[   29.032445]  show_stack+0x20/0x38 (C)
[   29.032592]  dump_stack_lvl+0x8c/0xd0
[   29.032714]  print_report+0x310/0x608
[   29.032849]  kasan_report+0xdc/0x128
[   29.033014]  __asan_report_load1_noabort+0x20/0x30
[   29.033124]  kasan_stack_oob+0x238/0x270
[   29.033209]  kunit_try_run_case+0x170/0x3f0
[   29.033257]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.033465]  kthread+0x328/0x630
[   29.033601]  ret_from_fork+0x10/0x20
[   29.033656] 
[   29.033748] The buggy address belongs to stack of task kunit_try_catch/261
[   29.033892]  and is located at offset 138 in frame:
[   29.033960]  kasan_stack_oob+0x0/0x270
[   29.034168] 
[   29.034221] This frame has 4 objects:
[   29.034332]  [48, 49) '__assertion'
[   29.034371]  [64, 72) 'array'
[   29.034423]  [96, 112) '__assertion'
[   29.034479]  [128, 138) 'stack_array'
[   29.034532] 
[   29.034565] The buggy address belongs to the virtual mapping at
[   29.034565]  [ffff800080b10000, ffff800080b19000) created by:
[   29.034565]  kernel_clone+0x150/0x7a8
[   29.034646] 
[   29.034676] The buggy address belongs to the physical page:
[   29.034720] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105785
[   29.034774] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   29.034845] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   29.034909] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.034961] page dumped because: kasan: bad access detected
[   29.035000] 
[   29.035027] Memory state around the buggy address:
[   29.035071]  ffff800080b17b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.035115]  ffff800080b17b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   29.035160] >ffff800080b17c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   29.035239]                                   ^
[   29.035276]  ffff800080b17c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   29.035650]  ffff800080b17d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   29.035833] ==================================================================

[   23.935635] ==================================================================
[   23.937177] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300
[   23.937450] Read of size 1 at addr ffff888103b4fd02 by task kunit_try_catch/278
[   23.937671] 
[   23.937759] CPU: 1 UID: 0 PID: 278 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250626 #1 PREEMPT(voluntary) 
[   23.937811] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.937824] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.937849] Call Trace:
[   23.937866]  <TASK>
[   23.937886]  dump_stack_lvl+0x73/0xb0
[   23.937916]  print_report+0xd1/0x650
[   23.937938]  ? __virt_addr_valid+0x1db/0x2d0
[   23.937962]  ? kasan_stack_oob+0x2b5/0x300
[   23.937985]  ? kasan_addr_to_slab+0x11/0xa0
[   23.938004]  ? kasan_stack_oob+0x2b5/0x300
[   23.938027]  kasan_report+0x141/0x180
[   23.938048]  ? kasan_stack_oob+0x2b5/0x300
[   23.938075]  __asan_report_load1_noabort+0x18/0x20
[   23.938098]  kasan_stack_oob+0x2b5/0x300
[   23.938122]  ? __pfx_kasan_stack_oob+0x10/0x10
[   23.938144]  ? finish_task_switch.isra.0+0x153/0x700
[   23.938178]  ? __switch_to+0x47/0xf50
[   23.938275]  ? __schedule+0x10cc/0x2b60
[   23.938312]  ? __pfx_read_tsc+0x10/0x10
[   23.938334]  ? ktime_get_ts64+0x86/0x230
[   23.938360]  kunit_try_run_case+0x1a5/0x480
[   23.938386]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.938408]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.938432]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.938457]  ? __kthread_parkme+0x82/0x180
[   23.938477]  ? preempt_count_sub+0x50/0x80
[   23.938499]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.938522]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.938545]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.938568]  kthread+0x337/0x6f0
[   23.938587]  ? trace_preempt_on+0x20/0xc0
[   23.938612]  ? __pfx_kthread+0x10/0x10
[   23.938632]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.938655]  ? calculate_sigpending+0x7b/0xa0
[   23.938678]  ? __pfx_kthread+0x10/0x10
[   23.938699]  ret_from_fork+0x116/0x1d0
[   23.938718]  ? __pfx_kthread+0x10/0x10
[   23.938737]  ret_from_fork_asm+0x1a/0x30
[   23.938767]  </TASK>
[   23.938780] 
[   23.952300] The buggy address belongs to stack of task kunit_try_catch/278
[   23.952613]  and is located at offset 138 in frame:
[   23.952772]  kasan_stack_oob+0x0/0x300
[   23.953049] 
[   23.953569] This frame has 4 objects:
[   23.953884]  [48, 49) '__assertion'
[   23.953912]  [64, 72) 'array'
[   23.954128]  [96, 112) '__assertion'
[   23.954512]  [128, 138) 'stack_array'
[   23.954674] 
[   23.955252] The buggy address belongs to the physical page:
[   23.955740] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103b4f
[   23.956390] flags: 0x200000000000000(node=0|zone=2)
[   23.956577] raw: 0200000000000000 ffffea00040ed3c8 ffffea00040ed3c8 0000000000000000
[   23.956886] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   23.957692] page dumped because: kasan: bad access detected
[   23.958298] 
[   23.958454] Memory state around the buggy address:
[   23.958876]  ffff888103b4fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   23.959547]  ffff888103b4fc80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   23.960083] >ffff888103b4fd00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   23.960397]                    ^
[   23.960512]  ffff888103b4fd80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   23.960721]  ffff888103b4fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.961029] ==================================================================