Hay
Date
June 24, 2025, 11:37 a.m.

Environment
dragonboard-845c
qemu-x86_64

[   49.367750] ==================================================================
[   49.380462] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   49.388141] Read of size 1 at addr ffffae1d640c668d by task kunit_try_catch/343
[   49.395553] 
[   49.397087] CPU: 3 UID: 0 PID: 343 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT 
[   49.397120] Tainted: [B]=BAD_PAGE, [N]=TEST
[   49.397130] Hardware name: Thundercomm Dragonboard 845c (DT)
[   49.397148] Call trace:
[   49.397156]  show_stack+0x20/0x38 (C)
[   49.397176]  dump_stack_lvl+0x8c/0xd0
[   49.397198]  print_report+0x310/0x608
[   49.397219]  kasan_report+0xdc/0x128
[   49.397240]  __asan_report_load1_noabort+0x20/0x30
[   49.397259]  kasan_global_oob_right+0x230/0x270
[   49.397279]  kunit_try_run_case+0x170/0x3f0
[   49.397302]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   49.397326]  kthread+0x328/0x630
[   49.397345]  ret_from_fork+0x10/0x20
[   49.397366] 
[   49.463436] The buggy address belongs to the variable:
[   49.468651]  global_array+0xd/0x40
[   49.472125] 
[   49.473673] The buggy address belongs to the virtual mapping at
[   49.473673]  [ffffae1d62260000, ffffae1d64181000) created by:
[   49.473673]  paging_init+0x66c/0x7d0
[   49.489068] 
[   49.490604] The buggy address belongs to the physical page:
[   49.496260] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa7ac6
[   49.504281] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   49.511696] raw: 03fffe0000002000 fffffdffc09eb188 fffffdffc09eb188 0000000000000000
[   49.519545] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   49.527385] page dumped because: kasan: bad access detected
[   49.533032] 
[   49.534562] Memory state around the buggy address:
[   49.539425]  ffffae1d640c6580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   49.546739]  ffffae1d640c6600: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   49.554066] >ffffae1d640c6680: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   49.561389]                       ^
[   49.564934]  ffffae1d640c6700: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   49.572257]  ffffae1d640c6780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   49.579572] ==================================================================

[   31.415728] ==================================================================
[   31.416531] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   31.417091] Read of size 1 at addr ffffffffa1aa8ecd by task kunit_try_catch/275
[   31.417650] 
[   31.417905] CPU: 0 UID: 0 PID: 275 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[   31.418029] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.418060] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   31.418108] Call Trace:
[   31.418137]  <TASK>
[   31.418176]  dump_stack_lvl+0x73/0xb0
[   31.418287]  print_report+0xd1/0x650
[   31.418367]  ? __virt_addr_valid+0x1db/0x2d0
[   31.418434]  ? kasan_global_oob_right+0x286/0x2d0
[   31.418516]  ? kasan_addr_to_slab+0x11/0xa0
[   31.418595]  ? kasan_global_oob_right+0x286/0x2d0
[   31.418683]  kasan_report+0x141/0x180
[   31.418717]  ? kasan_global_oob_right+0x286/0x2d0
[   31.418753]  __asan_report_load1_noabort+0x18/0x20
[   31.418804]  kasan_global_oob_right+0x286/0x2d0
[   31.418844]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   31.418877]  ? __schedule+0x10cc/0x2b60
[   31.418913]  ? __pfx_read_tsc+0x10/0x10
[   31.418943]  ? ktime_get_ts64+0x86/0x230
[   31.418977]  kunit_try_run_case+0x1a5/0x480
[   31.419010]  ? __pfx_kunit_try_run_case+0x10/0x10
[   31.419041]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   31.419073]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   31.419104]  ? __kthread_parkme+0x82/0x180
[   31.419133]  ? preempt_count_sub+0x50/0x80
[   31.419164]  ? __pfx_kunit_try_run_case+0x10/0x10
[   31.419196]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   31.419228]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   31.419259]  kthread+0x337/0x6f0
[   31.419285]  ? trace_preempt_on+0x20/0xc0
[   31.419317]  ? __pfx_kthread+0x10/0x10
[   31.419344]  ? _raw_spin_unlock_irq+0x47/0x80
[   31.419374]  ? calculate_sigpending+0x7b/0xa0
[   31.419405]  ? __pfx_kthread+0x10/0x10
[   31.419433]  ret_from_fork+0x116/0x1d0
[   31.419458]  ? __pfx_kthread+0x10/0x10
[   31.419485]  ret_from_fork_asm+0x1a/0x30
[   31.419525]  </TASK>
[   31.419558] 
[   31.431757] The buggy address belongs to the variable:
[   31.432288]  global_array+0xd/0x40
[   31.432774] 
[   31.433028] The buggy address belongs to the physical page:
[   31.433561] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2daa8
[   31.434049] flags: 0x100000000002000(reserved|node=0|zone=1)
[   31.434432] raw: 0100000000002000 ffffea0000b6aa08 ffffea0000b6aa08 0000000000000000
[   31.435160] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   31.435874] page dumped because: kasan: bad access detected
[   31.436364] 
[   31.436582] Memory state around the buggy address:
[   31.437003]  ffffffffa1aa8d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.437453]  ffffffffa1aa8e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.438159] >ffffffffa1aa8e80: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   31.438722]                                               ^
[   31.439118]  ffffffffa1aa8f00: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   31.439801]  ffffffffa1aa8f80: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   31.440342] ==================================================================