Hay
Date
June 5, 2025, 7:08 a.m.

Environment
qemu-arm64
qemu-x86_64

[   28.585636] ==================================================================
[   28.585769] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   28.585882] Read of size 1 at addr ffff9ca72a3b558d by task kunit_try_catch/245
[   28.586003] 
[   28.586078] CPU: 0 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT 
[   28.586276] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.586385] Hardware name: linux,dummy-virt (DT)
[   28.586481] Call trace:
[   28.587089]  show_stack+0x20/0x38 (C)
[   28.587533]  dump_stack_lvl+0x8c/0xd0
[   28.587706]  print_report+0x310/0x608
[   28.588023]  kasan_report+0xdc/0x128
[   28.588547]  __asan_report_load1_noabort+0x20/0x30
[   28.588807]  kasan_global_oob_right+0x230/0x270
[   28.588973]  kunit_try_run_case+0x170/0x3f0
[   28.589117]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.589268]  kthread+0x328/0x630
[   28.589417]  ret_from_fork+0x10/0x20
[   28.589947] 
[   28.590083] The buggy address belongs to the variable:
[   28.590234]  global_array+0xd/0x40
[   28.590579] 
[   28.590834] The buggy address belongs to the virtual mapping at
[   28.590834]  [ffff9ca728550000, ffff9ca72a471000) created by:
[   28.590834]  paging_init+0x66c/0x7d0
[   28.591049] 
[   28.591311] The buggy address belongs to the physical page:
[   28.591415] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47db5
[   28.591542] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   28.591802] raw: 03fffe0000002000 ffffc1ffc01f6d48 ffffc1ffc01f6d48 0000000000000000
[   28.592405] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   28.592614] page dumped because: kasan: bad access detected
[   28.592702] 
[   28.592755] Memory state around the buggy address:
[   28.592844]  ffff9ca72a3b5480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.592966]  ffff9ca72a3b5500: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   28.593079] >ffff9ca72a3b5580: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   28.593179]                       ^
[   28.593256]  ffff9ca72a3b5600: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   28.593588]  ffff9ca72a3b5680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.593709] ==================================================================


[   13.193913] ==================================================================
[   13.194720] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   13.195125] Read of size 1 at addr ffffffffbae78e4d by task kunit_try_catch/262
[   13.195438] 
[   13.195565] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250605 #1 PREEMPT(voluntary) 
[   13.195608] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.195620] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.195640] Call Trace:
[   13.195653]  <TASK>
[   13.195667]  dump_stack_lvl+0x73/0xb0
[   13.195694]  print_report+0xd1/0x650
[   13.195716]  ? __virt_addr_valid+0x1db/0x2d0
[   13.195740]  ? kasan_global_oob_right+0x286/0x2d0
[   13.195762]  ? kasan_addr_to_slab+0x11/0xa0
[   13.195783]  ? kasan_global_oob_right+0x286/0x2d0
[   13.195806]  kasan_report+0x141/0x180
[   13.195827]  ? kasan_global_oob_right+0x286/0x2d0
[   13.195854]  __asan_report_load1_noabort+0x18/0x20
[   13.195878]  kasan_global_oob_right+0x286/0x2d0
[   13.195914]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   13.195940]  ? __schedule+0x10cc/0x2b60
[   13.195964]  ? __pfx_read_tsc+0x10/0x10
[   13.195985]  ? ktime_get_ts64+0x86/0x230
[   13.196010]  kunit_try_run_case+0x1a5/0x480
[   13.196033]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.196052]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.196077]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.196101]  ? __kthread_parkme+0x82/0x180
[   13.196122]  ? preempt_count_sub+0x50/0x80
[   13.196145]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.196167]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.196192]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.196217]  kthread+0x337/0x6f0
[   13.196236]  ? trace_preempt_on+0x20/0xc0
[   13.196259]  ? __pfx_kthread+0x10/0x10
[   13.196279]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.196301]  ? calculate_sigpending+0x7b/0xa0
[   13.196325]  ? __pfx_kthread+0x10/0x10
[   13.196347]  ret_from_fork+0x116/0x1d0
[   13.196365]  ? __pfx_kthread+0x10/0x10
[   13.196386]  ret_from_fork_asm+0x1a/0x30
[   13.196416]  </TASK>
[   13.196426] 
[   13.204238] The buggy address belongs to the variable:
[   13.204494]  global_array+0xd/0x40
[   13.204751] 
[   13.204846] The buggy address belongs to the physical page:
[   13.205255] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x149678
[   13.205557] flags: 0x200000000002000(reserved|node=0|zone=2)
[   13.205750] raw: 0200000000002000 ffffea0005259e08 ffffea0005259e08 0000000000000000
[   13.205997] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   13.206434] page dumped because: kasan: bad access detected
[   13.206685] 
[   13.206780] Memory state around the buggy address:
[   13.207001]  ffffffffbae78d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.207327]  ffffffffbae78d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.207565] >ffffffffbae78e00: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   13.207980]                                               ^
[   13.208188]  ffffffffbae78e80: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   13.208404]  ffffffffbae78f00: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   13.208762] ==================================================================