Hay
Date
July 9, 2025, 2:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   19.349442] ==================================================================
[   19.349866] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   19.350002] Read of size 1 at addr ffffa8ee9a94f58d by task kunit_try_catch/245
[   19.350239] 
[   19.350396] CPU: 1 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc5 #1 PREEMPT 
[   19.350578] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   19.350626] Hardware name: linux,dummy-virt (DT)
[   19.350660] Call trace:
[   19.350694]  show_stack+0x20/0x38 (C)
[   19.350757]  dump_stack_lvl+0x8c/0xd0
[   19.351078]  print_report+0x310/0x608
[   19.351223]  kasan_report+0xdc/0x128
[   19.351560]  __asan_report_load1_noabort+0x20/0x30
[   19.351725]  kasan_global_oob_right+0x230/0x270
[   19.351830]  kunit_try_run_case+0x170/0x3f0
[   19.351886]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   19.351961]  kthread+0x328/0x630
[   19.352028]  ret_from_fork+0x10/0x20
[   19.352117] 
[   19.352608] The buggy address belongs to the variable:
[   19.352972]  global_array+0xd/0x40
[   19.353122] 
[   19.353565] The buggy address belongs to the virtual mapping at
[   19.353565]  [ffffa8ee98b00000, ffffa8ee9aa01000) created by:
[   19.353565]  paging_init+0x66c/0x7d0
[   19.353688] 
[   19.354153] The buggy address belongs to the physical page:
[   19.354200] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d4f
[   19.354352] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   19.354453] raw: 03fffe0000002000 ffffc1ffc01f53c8 ffffc1ffc01f53c8 0000000000000000
[   19.354813] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   19.354893] page dumped because: kasan: bad access detected
[   19.355135] 
[   19.355320] Memory state around the buggy address:
[   19.355419]  ffffa8ee9a94f480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.355827]  ffffa8ee9a94f500: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   19.355915] >ffffa8ee9a94f580: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   19.356016]                       ^
[   19.356152]  ffffa8ee9a94f600: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   19.356266]  ffffa8ee9a94f680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.356330] ==================================================================

[   14.539934] ==================================================================
[   14.540623] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   14.541027] Read of size 1 at addr ffffffffa4a63e8d by task kunit_try_catch/262
[   14.541297] 
[   14.541450] CPU: 1 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   14.541501] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.541512] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.541534] Call Trace:
[   14.541548]  <TASK>
[   14.541566]  dump_stack_lvl+0x73/0xb0
[   14.541613]  print_report+0xd1/0x650
[   14.541637]  ? __virt_addr_valid+0x1db/0x2d0
[   14.541663]  ? kasan_global_oob_right+0x286/0x2d0
[   14.541685]  ? kasan_addr_to_slab+0x11/0xa0
[   14.541706]  ? kasan_global_oob_right+0x286/0x2d0
[   14.541728]  kasan_report+0x141/0x180
[   14.541749]  ? kasan_global_oob_right+0x286/0x2d0
[   14.541776]  __asan_report_load1_noabort+0x18/0x20
[   14.541961]  kasan_global_oob_right+0x286/0x2d0
[   14.541986]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   14.542009]  ? __kasan_check_write+0x18/0x20
[   14.542028]  ? queued_spin_lock_slowpath+0x116/0xb40
[   14.542057]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[   14.542084]  ? __pfx_read_tsc+0x10/0x10
[   14.542110]  ? ktime_get_ts64+0x86/0x230
[   14.542141]  kunit_try_run_case+0x1a5/0x480
[   14.542170]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.542193]  ? _raw_spin_lock_irqsave+0xf9/0x100
[   14.542217]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.542241]  ? __kthread_parkme+0x82/0x180
[   14.542264]  ? preempt_count_sub+0x50/0x80
[   14.542290]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.542315]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.542341]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.542366]  kthread+0x337/0x6f0
[   14.542387]  ? trace_preempt_on+0x20/0xc0
[   14.542412]  ? __pfx_kthread+0x10/0x10
[   14.542432]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.542454]  ? calculate_sigpending+0x7b/0xa0
[   14.542478]  ? __pfx_kthread+0x10/0x10
[   14.542499]  ret_from_fork+0x116/0x1d0
[   14.542518]  ? __pfx_kthread+0x10/0x10
[   14.542539]  ret_from_fork_asm+0x1a/0x30
[   14.542570]  </TASK>
[   14.542581] 
[   14.550488] The buggy address belongs to the variable:
[   14.550769]  global_array+0xd/0x40
[   14.551029] 
[   14.551442] The buggy address belongs to the physical page:
[   14.551669] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x36863
[   14.552184] flags: 0x100000000002000(reserved|node=0|zone=1)
[   14.552423] raw: 0100000000002000 ffffea0000da18c8 ffffea0000da18c8 0000000000000000
[   14.552670] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   14.553297] page dumped because: kasan: bad access detected
[   14.553566] 
[   14.553675] Memory state around the buggy address:
[   14.553963]  ffffffffa4a63d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.554263]  ffffffffa4a63e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.554480] >ffffffffa4a63e80: 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   14.554808]                       ^
[   14.555212]  ffffffffa4a63f00: 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9
[   14.555457]  ffffffffa4a63f80: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   14.555748] ==================================================================