Hay
Date
July 3, 2025, 3:13 p.m.

Environment
qemu-arm64
qemu-x86_64

[   17.721078] ==================================================================
[   17.721139] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   17.721192] Read of size 1 at addr ffffa3b0e8e035ad by task kunit_try_catch/248
[   17.721280] 
[   17.721317] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc1 #1 PREEMPT 
[   17.721396] Tainted: [B]=BAD_PAGE, [N]=TEST
[   17.721423] Hardware name: linux,dummy-virt (DT)
[   17.721453] Call trace:
[   17.721473]  show_stack+0x20/0x38 (C)
[   17.721619]  dump_stack_lvl+0x8c/0xd0
[   17.721775]  print_report+0x310/0x608
[   17.721840]  kasan_report+0xdc/0x128
[   17.721893]  __asan_report_load1_noabort+0x20/0x30
[   17.722140]  kasan_global_oob_right+0x230/0x270
[   17.722548]  kunit_try_run_case+0x170/0x3f0
[   17.722607]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.722660]  kthread+0x328/0x630
[   17.722705]  ret_from_fork+0x10/0x20
[   17.722763] 
[   17.722816] The buggy address belongs to the variable:
[   17.723201]  global_array+0xd/0x40
[   17.723321] 
[   17.723448] The buggy address belongs to the virtual mapping at
[   17.723448]  [ffffa3b0e7020000, ffffa3b0e8ec1000) created by:
[   17.723448]  paging_init+0x66c/0x7d0
[   17.723555] 
[   17.723723] The buggy address belongs to the physical page:
[   17.723759] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47c03
[   17.723812] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   17.723887] raw: 03fffe0000002000 ffffc1ffc01f00c8 ffffc1ffc01f00c8 0000000000000000
[   17.723966] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   17.724008] page dumped because: kasan: bad access detected
[   17.724040] 
[   17.724085] Memory state around the buggy address:
[   17.724140]  ffffa3b0e8e03480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.724190]  ffffa3b0e8e03500: 00 00 00 00 00 00 00 00 00 00 00 00 02 f9 f9 f9
[   17.724233] >ffffa3b0e8e03580: f9 f9 f9 f9 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9
[   17.724270]                                   ^
[   17.724301]  ffffa3b0e8e03600: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9
[   17.724343]  ffffa3b0e8e03680: f9 f9 f9 f9 00 00 00 00 00 00 00 00 00 00 00 00
[   17.724382] ==================================================================

[   12.956944] ==================================================================
[   12.957847] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   12.958109] Read of size 1 at addr ffffffff9764332d by task kunit_try_catch/264
[   12.958349] 
[   12.958470] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc1 #1 PREEMPT(voluntary) 
[   12.958520] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.958534] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.958558] Call Trace:
[   12.958572]  <TASK>
[   12.958592]  dump_stack_lvl+0x73/0xb0
[   12.958620]  print_report+0xd1/0x650
[   12.958644]  ? __virt_addr_valid+0x1db/0x2d0
[   12.958667]  ? kasan_global_oob_right+0x286/0x2d0
[   12.958688]  ? kasan_addr_to_slab+0x11/0xa0
[   12.958710]  ? kasan_global_oob_right+0x286/0x2d0
[   12.958732]  kasan_report+0x141/0x180
[   12.958755]  ? kasan_global_oob_right+0x286/0x2d0
[   12.958782]  __asan_report_load1_noabort+0x18/0x20
[   12.958803]  kasan_global_oob_right+0x286/0x2d0
[   12.958825]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   12.958851]  ? __schedule+0x10cc/0x2b60
[   12.958874]  ? __pfx_read_tsc+0x10/0x10
[   12.958894]  ? ktime_get_ts64+0x86/0x230
[   12.958921]  kunit_try_run_case+0x1a5/0x480
[   12.958945]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.958967]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.958992]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.959015]  ? __kthread_parkme+0x82/0x180
[   12.959037]  ? preempt_count_sub+0x50/0x80
[   12.959063]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.959086]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.959109]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.959133]  kthread+0x337/0x6f0
[   12.959149]  ? trace_preempt_on+0x20/0xc0
[   12.959173]  ? __pfx_kthread+0x10/0x10
[   12.959190]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.959212]  ? calculate_sigpending+0x7b/0xa0
[   12.959260]  ? __pfx_kthread+0x10/0x10
[   12.959279]  ret_from_fork+0x41/0x80
[   12.959299]  ? __pfx_kthread+0x10/0x10
[   12.959317]  ret_from_fork_asm+0x1a/0x30
[   12.959348]  </TASK>
[   12.959360] 
[   12.974964] The buggy address belongs to the variable:
[   12.975221]  global_array+0xd/0x40
[   12.975997] 
[   12.976446] The buggy address belongs to the physical page:
[   12.976819] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12bc43
[   12.977448] flags: 0x200000000002000(reserved|node=0|zone=2)
[   12.977887] raw: 0200000000002000 ffffea0004af10c8 ffffea0004af10c8 0000000000000000
[   12.978216] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   12.978894] page dumped because: kasan: bad access detected
[   12.979244] 
[   12.979410] Memory state around the buggy address:
[   12.979625]  ffffffff97643200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   12.980189]  ffffffff97643280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   12.980734] >ffffffff97643300: 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
[   12.981499]                                   ^
[   12.981805]  ffffffff97643380: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9
[   12.982107]  ffffffff97643400: f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
[   12.982713] ==================================================================