Hay
Date
May 12, 2025, 6:12 p.m.

Environment
qemu-arm64
qemu-x86_64

[   20.637179] ==================================================================
[   20.637766] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   20.638366] Read of size 1 at addr ffffac220aa8910d by task kunit_try_catch/234
[   20.639190] 
[   20.639546] CPU: 1 UID: 0 PID: 234 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   20.639669] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.639703] Hardware name: linux,dummy-virt (DT)
[   20.639755] Call trace:
[   20.640260]  show_stack+0x20/0x38 (C)
[   20.640350]  dump_stack_lvl+0x8c/0xd0
[   20.640424]  print_report+0x310/0x608
[   20.640484]  kasan_report+0xdc/0x128
[   20.640539]  __asan_report_load1_noabort+0x20/0x30
[   20.640592]  kasan_global_oob_right+0x230/0x270
[   20.640646]  kunit_try_run_case+0x170/0x3f0
[   20.640701]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.640777]  kthread+0x318/0x620
[   20.640832]  ret_from_fork+0x10/0x20
[   20.640914] 
[   20.643680] The buggy address belongs to the variable:
[   20.643987]  global_array+0xd/0x40
[   20.644288] 
[   20.644588] The buggy address belongs to the virtual mapping at
[   20.644588]  [ffffac2208d10000, ffffac220ab41000) created by:
[   20.644588]  paging_init+0x66c/0x7d0
[   20.645303] 
[   20.645627] The buggy address belongs to the physical page:
[   20.645860] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47a89
[   20.646342] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   20.646957] raw: 03fffe0000002000 ffffc1ffc01ea248 ffffc1ffc01ea248 0000000000000000
[   20.647375] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.647760] page dumped because: kasan: bad access detected
[   20.648202] 
[   20.648361] Memory state around the buggy address:
[   20.648588]  ffffac220aa89000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.648957]  ffffac220aa89080: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   20.649362] >ffffac220aa89100: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   20.649701]                       ^
[   20.650027]  ffffac220aa89180: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   20.650355]  ffffac220aa89200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.650758] ==================================================================

[   14.174432] ==================================================================
[   14.176426] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x288/0x2d0
[   14.177592] Read of size 1 at addr ffffffffa681ed4d by task kunit_try_catch/253
[   14.177965] 
[   14.178402] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N 6.14.7-rc1 #1
[   14.178556] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.178572] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.178597] Call Trace:
[   14.178618]  <TASK>
[   14.178640]  dump_stack_lvl+0x73/0xb0
[   14.178675]  print_report+0xd1/0x650
[   14.178700]  ? __virt_addr_valid+0x1db/0x2d0
[   14.178724]  ? kasan_global_oob_right+0x288/0x2d0
[   14.178745]  ? kasan_addr_to_slab+0x11/0xa0
[   14.178766]  ? kasan_global_oob_right+0x288/0x2d0
[   14.178786]  kasan_report+0x140/0x180
[   14.178808]  ? kasan_global_oob_right+0x288/0x2d0
[   14.178833]  __asan_report_load1_noabort+0x18/0x20
[   14.178871]  kasan_global_oob_right+0x288/0x2d0
[   14.178892]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   14.178916]  ? __schedule+0xce8/0x2840
[   14.178942]  ? __pfx_read_tsc+0x10/0x10
[   14.178965]  ? ktime_get_ts64+0x86/0x230
[   14.178992]  kunit_try_run_case+0x1a6/0x480
[   14.179074]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.179096]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   14.179117]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.179143]  ? __kthread_parkme+0x82/0x160
[   14.179166]  ? preempt_count_sub+0x50/0x80
[   14.179192]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.179214]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.179240]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.179266]  kthread+0x324/0x6e0
[   14.179287]  ? trace_preempt_on+0x20/0xc0
[   14.179311]  ? __pfx_kthread+0x10/0x10
[   14.179332]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.179356]  ? calculate_sigpending+0x7b/0xa0
[   14.179378]  ? __pfx_kthread+0x10/0x10
[   14.179400]  ret_from_fork+0x41/0x80
[   14.179422]  ? __pfx_kthread+0x10/0x10
[   14.179444]  ret_from_fork_asm+0x1a/0x30
[   14.179478]  </TASK>
[   14.179490] 
[   14.190375] The buggy address belongs to the variable:
[   14.190640]  global_array+0xd/0x40
[   14.190948] 
[   14.191325] The buggy address belongs to the physical page:
[   14.191966] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16a21e
[   14.192382] flags: 0x200000000002000(reserved|node=0|zone=2)
[   14.192716] raw: 0200000000002000 ffffea0005a88788 ffffea0005a88788 0000000000000000
[   14.193105] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   14.193414] page dumped because: kasan: bad access detected
[   14.193765] 
[   14.193923] Memory state around the buggy address:
[   14.194182]  ffffffffa681ec00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.194626]  ffffffffa681ec80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.194953] >ffffffffa681ed00: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   14.195357]                                               ^
[   14.195688]  ffffffffa681ed80: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   14.195965]  ffffffffa681ee00: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   14.196381] ==================================================================