Hay
Date
July 20, 2025, 11:12 a.m.

Environment
qemu-arm64
qemu-x86_64

[   17.482977] ==================================================================
[   17.483953] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   17.484111] Read of size 1 at addr ffff9f28a9b4f58d by task kunit_try_catch/245
[   17.484162] 
[   17.484710] CPU: 0 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   17.485255] Tainted: [B]=BAD_PAGE, [N]=TEST
[   17.485291] Hardware name: linux,dummy-virt (DT)
[   17.485323] Call trace:
[   17.485346]  show_stack+0x20/0x38 (C)
[   17.485479]  dump_stack_lvl+0x8c/0xd0
[   17.486182]  print_report+0x310/0x5d0
[   17.486370]  kasan_report+0xdc/0x128
[   17.486558]  __asan_report_load1_noabort+0x20/0x30
[   17.486722]  kasan_global_oob_right+0x230/0x270
[   17.487017]  kunit_try_run_case+0x170/0x3f0
[   17.487250]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.487358]  kthread+0x328/0x630
[   17.487403]  ret_from_fork+0x10/0x20
[   17.487462] 
[   17.487599] The buggy address belongs to the variable:
[   17.487640]  global_array+0xd/0x40
[   17.487706] 
[   17.487761] The buggy address ffff9f28a9b4f58d belongs to a vmalloc virtual mapping
[   17.488094] The buggy address belongs to the physical page:
[   17.488203] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d4f
[   17.488277] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   17.488370] raw: 03fffe0000002000 ffffc1ffc01f53c8 ffffc1ffc01f53c8 0000000000000000
[   17.488492] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   17.488821] page dumped because: kasan: bad access detected
[   17.488883] 
[   17.488946] Memory state around the buggy address:
[   17.488990]  ffff9f28a9b4f480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.489041]  ffff9f28a9b4f500: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   17.489365] >ffff9f28a9b4f580: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   17.489403]                       ^
[   17.489433]  ffff9f28a9b4f600: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   17.489475]  ffff9f28a9b4f680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.489864] ==================================================================

[   14.073621] ==================================================================
[   14.074627] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   14.075679] Read of size 1 at addr ffffffff97063e8d by task kunit_try_catch/262
[   14.076325] 
[   14.076589] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   14.076637] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.076649] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.076669] Call Trace:
[   14.076684]  <TASK>
[   14.076698]  dump_stack_lvl+0x73/0xb0
[   14.076728]  print_report+0xd1/0x610
[   14.076749]  ? __virt_addr_valid+0x1db/0x2d0
[   14.076771]  ? kasan_global_oob_right+0x286/0x2d0
[   14.076791]  ? kasan_addr_to_slab+0x11/0xa0
[   14.076810]  ? kasan_global_oob_right+0x286/0x2d0
[   14.076831]  kasan_report+0x141/0x180
[   14.076852]  ? kasan_global_oob_right+0x286/0x2d0
[   14.076877]  __asan_report_load1_noabort+0x18/0x20
[   14.076901]  kasan_global_oob_right+0x286/0x2d0
[   14.076935]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   14.076959]  ? __schedule+0x10cc/0x2b60
[   14.076980]  ? __pfx_read_tsc+0x10/0x10
[   14.077000]  ? ktime_get_ts64+0x86/0x230
[   14.077023]  kunit_try_run_case+0x1a5/0x480
[   14.077047]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.077068]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.077090]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.077112]  ? __kthread_parkme+0x82/0x180
[   14.077132]  ? preempt_count_sub+0x50/0x80
[   14.077154]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.077177]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.077200]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.077223]  kthread+0x337/0x6f0
[   14.077241]  ? trace_preempt_on+0x20/0xc0
[   14.077264]  ? __pfx_kthread+0x10/0x10
[   14.077283]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.077303]  ? calculate_sigpending+0x7b/0xa0
[   14.077326]  ? __pfx_kthread+0x10/0x10
[   14.077452]  ret_from_fork+0x116/0x1d0
[   14.077474]  ? __pfx_kthread+0x10/0x10
[   14.077494]  ret_from_fork_asm+0x1a/0x30
[   14.077537]  </TASK>
[   14.077547] 
[   14.092471] The buggy address belongs to the variable:
[   14.092802]  global_array+0xd/0x40
[   14.092974] 
[   14.093098] The buggy address belongs to the physical page:
[   14.093399] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51e63
[   14.093648] flags: 0x100000000002000(reserved|node=0|zone=1)
[   14.093935] raw: 0100000000002000 ffffea00014798c8 ffffea00014798c8 0000000000000000
[   14.094285] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   14.094713] page dumped because: kasan: bad access detected
[   14.094979] 
[   14.095074] Memory state around the buggy address:
[   14.095266]  ffffffff97063d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.095693]  ffffffff97063e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.096061] >ffffffff97063e80: 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   14.096297]                       ^
[   14.096553]  ffffffff97063f00: 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9
[   14.096856]  ffffffff97063f80: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   14.097102] ==================================================================