Hay
Date
June 3, 2025, 7:38 a.m.

Environment
qemu-arm64
qemu-x86_64

[   20.568545] ==================================================================
[   20.568632] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   20.568704] Read of size 1 at addr ffff9fc3021b558d by task kunit_try_catch/245
[   20.568755] 
[   20.568801] CPU: 1 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250603 #1 PREEMPT 
[   20.568894] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.568922] Hardware name: linux,dummy-virt (DT)
[   20.568957] Call trace:
[   20.573217]  show_stack+0x20/0x38 (C)
[   20.573655]  dump_stack_lvl+0x8c/0xd0
[   20.574276]  print_report+0x310/0x608
[   20.574646]  kasan_report+0xdc/0x128
[   20.574713]  __asan_report_load1_noabort+0x20/0x30
[   20.575526]  kasan_global_oob_right+0x230/0x270
[   20.575609]  kunit_try_run_case+0x170/0x3f0
[   20.575659]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.576350]  kthread+0x328/0x630
[   20.577097]  ret_from_fork+0x10/0x20
[   20.577662] 
[   20.578024] The buggy address belongs to the variable:
[   20.578327]  global_array+0xd/0x40
[   20.578390] 
[   20.579689] The buggy address belongs to the virtual mapping at
[   20.579689]  [ffff9fc300350000, ffff9fc302271000) created by:
[   20.579689]  paging_init+0x66c/0x7d0
[   20.580275] 
[   20.580792] The buggy address belongs to the physical page:
[   20.581337] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47db5
[   20.581416] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   20.581969] raw: 03fffe0000002000 ffffc1ffc01f6d48 ffffc1ffc01f6d48 0000000000000000
[   20.582508] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.582834] page dumped because: kasan: bad access detected
[   20.583143] 
[   20.583352] Memory state around the buggy address:
[   20.583800]  ffff9fc3021b5480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.584070]  ffff9fc3021b5500: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   20.584475] >ffff9fc3021b5580: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   20.584692]                       ^
[   20.585144]  ffff9fc3021b5600: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   20.585540]  ffff9fc3021b5680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.586124] ==================================================================


[   16.674666] ==================================================================
[   16.675540] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   16.676052] Read of size 1 at addr ffffffff8f47ae4d by task kunit_try_catch/262
[   16.676616] 
[   16.676859] CPU: 1 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250603 #1 PREEMPT(voluntary) 
[   16.676929] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.676947] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.676974] Call Trace:
[   16.676993]  <TASK>
[   16.677020]  dump_stack_lvl+0x73/0xb0
[   16.677057]  print_report+0xd1/0x650
[   16.677093]  ? __virt_addr_valid+0x1db/0x2d0
[   16.677127]  ? kasan_global_oob_right+0x286/0x2d0
[   16.677152]  ? kasan_addr_to_slab+0x11/0xa0
[   16.677210]  ? kasan_global_oob_right+0x286/0x2d0
[   16.677250]  kasan_report+0x141/0x180
[   16.677277]  ? kasan_global_oob_right+0x286/0x2d0
[   16.677322]  __asan_report_load1_noabort+0x18/0x20
[   16.677347]  kasan_global_oob_right+0x286/0x2d0
[   16.677372]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   16.677401]  ? __schedule+0x10cc/0x2b60
[   16.677429]  ? __pfx_read_tsc+0x10/0x10
[   16.677466]  ? ktime_get_ts64+0x86/0x230
[   16.677499]  kunit_try_run_case+0x1a5/0x480
[   16.677525]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.677551]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.677579]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.677606]  ? __kthread_parkme+0x82/0x180
[   16.677643]  ? preempt_count_sub+0x50/0x80
[   16.677672]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.677710]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.677741]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.677770]  kthread+0x337/0x6f0
[   16.677791]  ? trace_preempt_on+0x20/0xc0
[   16.677819]  ? __pfx_kthread+0x10/0x10
[   16.677842]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.677868]  ? calculate_sigpending+0x7b/0xa0
[   16.677897]  ? __pfx_kthread+0x10/0x10
[   16.677921]  ret_from_fork+0x116/0x1d0
[   16.677941]  ? __pfx_kthread+0x10/0x10
[   16.677964]  ret_from_fork_asm+0x1a/0x30
[   16.678001]  </TASK>
[   16.678017] 
[   16.685766] The buggy address belongs to the variable:
[   16.686007]  global_array+0xd/0x40
[   16.686137] 
[   16.686355] The buggy address belongs to the physical page:
[   16.686748] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7947a
[   16.687041] flags: 0x100000000002000(reserved|node=0|zone=1)
[   16.687236] raw: 0100000000002000 ffffea0001e51e88 ffffea0001e51e88 0000000000000000
[   16.687770] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   16.687998] page dumped because: kasan: bad access detected
[   16.688397] 
[   16.688471] Memory state around the buggy address:
[   16.688598]  ffffffff8f47ad00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.688757]  ffffffff8f47ad80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.689189] >ffffffff8f47ae00: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   16.689706]                                               ^
[   16.690099]  ffffffff8f47ae80: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   16.690301]  ffffffff8f47af00: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   16.690467] ==================================================================