Hay
Date
July 2, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64

[   20.295723] ==================================================================
[   20.295835] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   20.295895] Read of size 1 at addr ffff9689b754f5cd by task kunit_try_catch/245
[   20.295946] 
[   20.295992] CPU: 0 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT 
[   20.296079] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.296107] Hardware name: linux,dummy-virt (DT)
[   20.296141] Call trace:
[   20.296666]  show_stack+0x20/0x38 (C)
[   20.296929]  dump_stack_lvl+0x8c/0xd0
[   20.297107]  print_report+0x310/0x608
[   20.297268]  kasan_report+0xdc/0x128
[   20.297319]  __asan_report_load1_noabort+0x20/0x30
[   20.297607]  kasan_global_oob_right+0x230/0x270
[   20.297811]  kunit_try_run_case+0x170/0x3f0
[   20.297945]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.298114]  kthread+0x328/0x630
[   20.298209]  ret_from_fork+0x10/0x20
[   20.298697] 
[   20.298950] The buggy address belongs to the variable:
[   20.299188]  global_array+0xd/0x40
[   20.299341] 
[   20.299901] The buggy address belongs to the virtual mapping at
[   20.299901]  [ffff9689b5700000, ffff9689b7601000) created by:
[   20.299901]  paging_init+0x66c/0x7d0
[   20.300170] 
[   20.300565] The buggy address belongs to the physical page:
[   20.300769] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d4f
[   20.300917] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   20.301114] raw: 03fffe0000002000 ffffc1ffc01f53c8 ffffc1ffc01f53c8 0000000000000000
[   20.301298] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.301341] page dumped because: kasan: bad access detected
[   20.301383] 
[   20.301402] Memory state around the buggy address:
[   20.301657]  ffff9689b754f480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.301850]  ffff9689b754f500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.301997] >ffff9689b754f580: 02 f9 f9 f9 f9 f9 f9 f9 00 02 f9 f9 f9 f9 f9 f9
[   20.302083]                                               ^
[   20.302260]  ffff9689b754f600: 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   20.302339]  ffff9689b754f680: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   20.302378] ==================================================================

[   13.213682] ==================================================================
[   13.214294] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   13.214845] Read of size 1 at addr ffffffff8ce61e8d by task kunit_try_catch/264
[   13.215196] 
[   13.215586] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[   13.215640] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.215653] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.215681] Call Trace:
[   13.215693]  <TASK>
[   13.215711]  dump_stack_lvl+0x73/0xb0
[   13.215741]  print_report+0xd1/0x650
[   13.215765]  ? __virt_addr_valid+0x1db/0x2d0
[   13.215788]  ? kasan_global_oob_right+0x286/0x2d0
[   13.215808]  ? kasan_addr_to_slab+0x11/0xa0
[   13.215828]  ? kasan_global_oob_right+0x286/0x2d0
[   13.215849]  kasan_report+0x141/0x180
[   13.215871]  ? kasan_global_oob_right+0x286/0x2d0
[   13.215896]  __asan_report_load1_noabort+0x18/0x20
[   13.215920]  kasan_global_oob_right+0x286/0x2d0
[   13.215941]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   13.215964]  ? __schedule+0x10cc/0x2b60
[   13.215986]  ? __pfx_read_tsc+0x10/0x10
[   13.216007]  ? ktime_get_ts64+0x86/0x230
[   13.216030]  kunit_try_run_case+0x1a5/0x480
[   13.216055]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.216076]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.216099]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.216120]  ? __kthread_parkme+0x82/0x180
[   13.216141]  ? preempt_count_sub+0x50/0x80
[   13.216165]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.216187]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.216210]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.216232]  kthread+0x337/0x6f0
[   13.216251]  ? trace_preempt_on+0x20/0xc0
[   13.216274]  ? __pfx_kthread+0x10/0x10
[   13.216295]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.216315]  ? calculate_sigpending+0x7b/0xa0
[   13.216338]  ? __pfx_kthread+0x10/0x10
[   13.216371]  ret_from_fork+0x116/0x1d0
[   13.216389]  ? __pfx_kthread+0x10/0x10
[   13.216409]  ret_from_fork_asm+0x1a/0x30
[   13.216439]  </TASK>
[   13.216451] 
[   13.228723] The buggy address belongs to the variable:
[   13.229165]  global_array+0xd/0x40
[   13.229516] 
[   13.229895] The buggy address belongs to the physical page:
[   13.230143] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x136a61
[   13.230482] flags: 0x200000000002000(reserved|node=0|zone=2)
[   13.230750] raw: 0200000000002000 ffffea0004da9848 ffffea0004da9848 0000000000000000
[   13.231333] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   13.231743] page dumped because: kasan: bad access detected
[   13.232165] 
[   13.232247] Memory state around the buggy address:
[   13.232663]  ffffffff8ce61d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.233175]  ffffffff8ce61e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.233650] >ffffffff8ce61e80: 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   13.234091]                       ^
[   13.234225]  ffffffff8ce61f00: 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9
[   13.234691]  ffffffff8ce61f80: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   13.235160] ==================================================================