Hay
Date
July 10, 2025, 9:07 a.m.

Environment
qemu-arm64
qemu-x86_64

[   31.684970] ==================================================================
[   31.685034] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   31.685268] Read of size 1 at addr ffff90902893b6cd by task kunit_try_catch/276
[   31.685402] 
[   31.685447] CPU: 0 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250710 #1 PREEMPT 
[   31.685536] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.685728] Hardware name: linux,dummy-virt (DT)
[   31.685855] Call trace:
[   31.685888]  show_stack+0x20/0x38 (C)
[   31.685941]  dump_stack_lvl+0x8c/0xd0
[   31.685986]  print_report+0x310/0x5d0
[   31.686065]  kasan_report+0xdc/0x128
[   31.686112]  __asan_report_load1_noabort+0x20/0x30
[   31.686171]  kasan_global_oob_right+0x230/0x270
[   31.686363]  kunit_try_run_case+0x170/0x3f0
[   31.686494]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.686558]  kthread+0x328/0x630
[   31.686607]  ret_from_fork+0x10/0x20
[   31.686710] 
[   31.686794] The buggy address belongs to the variable:
[   31.686842]  global_array+0xd/0x40
[   31.687026] 
[   31.687088] The buggy address ffff90902893b6cd belongs to a vmalloc virtual mapping
[   31.687566] The buggy address belongs to the physical page:
[   31.687693] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d3b
[   31.687963] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   31.688103] raw: 03fffe0000002000 ffffc1ffc01f4ec8 ffffc1ffc01f4ec8 0000000000000000
[   31.688250] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   31.688349] page dumped because: kasan: bad access detected
[   31.688422] 
[   31.688722] Memory state around the buggy address:
[   31.688862]  ffff90902893b580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.688930]  ffff90902893b600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.689046] >ffff90902893b680: 02 f9 f9 f9 f9 f9 f9 f9 00 02 f9 f9 f9 f9 f9 f9
[   31.689126]                                               ^
[   31.689268]  ffff90902893b700: 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   31.689315]  ffff90902893b780: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   31.689531] ==================================================================

[   26.928179] ==================================================================
[   26.928631] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   26.929480] Read of size 1 at addr ffffffff92ebaf4d by task kunit_try_catch/293
[   26.930509] 
[   26.930861] CPU: 1 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) 
[   26.930922] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.930936] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.930961] Call Trace:
[   26.930975]  <TASK>
[   26.930995]  dump_stack_lvl+0x73/0xb0
[   26.931030]  print_report+0xd1/0x610
[   26.931054]  ? __virt_addr_valid+0x1db/0x2d0
[   26.931083]  ? kasan_global_oob_right+0x286/0x2d0
[   26.931105]  ? kasan_addr_to_slab+0x11/0xa0
[   26.931150]  ? kasan_global_oob_right+0x286/0x2d0
[   26.931172]  kasan_report+0x141/0x180
[   26.931251]  ? kasan_global_oob_right+0x286/0x2d0
[   26.931279]  __asan_report_load1_noabort+0x18/0x20
[   26.931315]  kasan_global_oob_right+0x286/0x2d0
[   26.931338]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   26.931363]  ? __schedule+0x10cc/0x2b60
[   26.931387]  ? __pfx_read_tsc+0x10/0x10
[   26.931410]  ? ktime_get_ts64+0x86/0x230
[   26.931435]  kunit_try_run_case+0x1a5/0x480
[   26.931459]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.931479]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   26.931517]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.931540]  ? __kthread_parkme+0x82/0x180
[   26.931562]  ? preempt_count_sub+0x50/0x80
[   26.931587]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.931609]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.931634]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.931658]  kthread+0x337/0x6f0
[   26.931679]  ? trace_preempt_on+0x20/0xc0
[   26.931713]  ? __pfx_kthread+0x10/0x10
[   26.931734]  ? _raw_spin_unlock_irq+0x47/0x80
[   26.931756]  ? calculate_sigpending+0x7b/0xa0
[   26.931791]  ? __pfx_kthread+0x10/0x10
[   26.931813]  ret_from_fork+0x116/0x1d0
[   26.931832]  ? __pfx_kthread+0x10/0x10
[   26.931858]  ret_from_fork_asm+0x1a/0x30
[   26.931890]  </TASK>
[   26.931903] 
[   26.940324] The buggy address belongs to the variable:
[   26.940593]  global_array+0xd/0x40
[   26.940831] 
[   26.941021] The buggy address belongs to the physical page:
[   26.941360] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x124eba
[   26.941663] flags: 0x200000000002000(reserved|node=0|zone=2)
[   26.942075] raw: 0200000000002000 ffffea000493ae88 ffffea000493ae88 0000000000000000
[   26.942534] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.942956] page dumped because: kasan: bad access detected
[   26.943219] 
[   26.943296] Memory state around the buggy address:
[   26.943543]  ffffffff92ebae00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.943880]  ffffffff92ebae80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.944276] >ffffffff92ebaf00: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   26.944686]                                               ^
[   26.944933]  ffffffff92ebaf80: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   26.945407]  ffffffff92ebb000: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   26.945729] ==================================================================