Hay
Date
June 19, 2025, 12:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   33.190035] ==================================================================
[   33.190205] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   33.190349] Read of size 1 at addr ffffa8812967968d by task kunit_try_catch/256
[   33.190989] 
[   33.191601] CPU: 0 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250619 #1 PREEMPT 
[   33.191861] Tainted: [B]=BAD_PAGE, [N]=TEST
[   33.191941] Hardware name: linux,dummy-virt (DT)
[   33.192022] Call trace:
[   33.192080]  show_stack+0x20/0x38 (C)
[   33.192694]  dump_stack_lvl+0x8c/0xd0
[   33.193284]  print_report+0x310/0x608
[   33.193675]  kasan_report+0xdc/0x128
[   33.193815]  __asan_report_load1_noabort+0x20/0x30
[   33.193957]  kasan_global_oob_right+0x230/0x270
[   33.194021]  kunit_try_run_case+0x170/0x3f0
[   33.194082]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   33.194211]  kthread+0x328/0x630
[   33.194331]  ret_from_fork+0x10/0x20
[   33.194477] 
[   33.194587] The buggy address belongs to the variable:
[   33.194656]  global_array+0xd/0x40
[   33.194748] 
[   33.194907] The buggy address belongs to the virtual mapping at
[   33.194907]  [ffffa88127830000, ffffa88129731000) created by:
[   33.194907]  paging_init+0x66c/0x7d0
[   33.195097] 
[   33.195382] The buggy address belongs to the physical page:
[   33.195478] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47c79
[   33.195651] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   33.195910] raw: 03fffe0000002000 ffffc1ffc01f1e48 ffffc1ffc01f1e48 0000000000000000
[   33.196030] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   33.196137] page dumped because: kasan: bad access detected
[   33.196250] 
[   33.196290] Memory state around the buggy address:
[   33.196367]  ffffa88129679580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   33.196474]  ffffa88129679600: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   33.196582] >ffffa88129679680: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   33.196686]                       ^
[   33.196793]  ffffa88129679700: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   33.196951]  ffffa88129679780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   33.197053] ==================================================================

[   29.153672] ==================================================================
[   29.154669] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   29.155477] Read of size 1 at addr ffffffffa8878ecd by task kunit_try_catch/274
[   29.156286] 
[   29.156551] CPU: 0 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250619 #1 PREEMPT(voluntary) 
[   29.156624] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.156640] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.156667] Call Trace:
[   29.156686]  <TASK>
[   29.156711]  dump_stack_lvl+0x73/0xb0
[   29.156758]  print_report+0xd1/0x650
[   29.156784]  ? __virt_addr_valid+0x1db/0x2d0
[   29.156813]  ? kasan_global_oob_right+0x286/0x2d0
[   29.156837]  ? kasan_addr_to_slab+0x11/0xa0
[   29.156859]  ? kasan_global_oob_right+0x286/0x2d0
[   29.156884]  kasan_report+0x141/0x180
[   29.156914]  ? kasan_global_oob_right+0x286/0x2d0
[   29.157242]  __asan_report_load1_noabort+0x18/0x20
[   29.157388]  kasan_global_oob_right+0x286/0x2d0
[   29.157443]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   29.157499]  ? __schedule+0x10cc/0x2b60
[   29.157552]  ? __pfx_read_tsc+0x10/0x10
[   29.157594]  ? ktime_get_ts64+0x86/0x230
[   29.157634]  kunit_try_run_case+0x1a5/0x480
[   29.157664]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.157688]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.157715]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.157741]  ? __kthread_parkme+0x82/0x180
[   29.157764]  ? preempt_count_sub+0x50/0x80
[   29.157791]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.157817]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.157842]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.157868]  kthread+0x337/0x6f0
[   29.157890]  ? trace_preempt_on+0x20/0xc0
[   29.157943]  ? __pfx_kthread+0x10/0x10
[   29.157981]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.158019]  ? calculate_sigpending+0x7b/0xa0
[   29.158057]  ? __pfx_kthread+0x10/0x10
[   29.158096]  ret_from_fork+0x116/0x1d0
[   29.158140]  ? __pfx_kthread+0x10/0x10
[   29.158173]  ret_from_fork_asm+0x1a/0x30
[   29.158222]  </TASK>
[   29.158237] 
[   29.171030] The buggy address belongs to the variable:
[   29.172084]  global_array+0xd/0x40
[   29.172542] 
[   29.172761] The buggy address belongs to the physical page:
[   29.173258] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15a278
[   29.174309] flags: 0x200000000002000(reserved|node=0|zone=2)
[   29.174989] raw: 0200000000002000 ffffea0005689e08 ffffea0005689e08 0000000000000000
[   29.175596] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.175767] page dumped because: kasan: bad access detected
[   29.175877] 
[   29.176411] Memory state around the buggy address:
[   29.176675]  ffffffffa8878d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.177865]  ffffffffa8878e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.178736] >ffffffffa8878e80: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   29.179340]                                               ^
[   29.179647]  ffffffffa8878f00: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   29.180150]  ffffffffa8878f80: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   29.180516] ==================================================================