Hay
Date
May 23, 2025, 11:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   30.735591] ==================================================================
[   30.735947] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   30.736204] Read of size 1 at addr ffffa3ab961f14ed by task kunit_try_catch/247
[   30.736483] 
[   30.736649] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc7 #1 PREEMPT 
[   30.736913] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.736982] Hardware name: linux,dummy-virt (DT)
[   30.737057] Call trace:
[   30.737144]  show_stack+0x20/0x38 (C)
[   30.737294]  dump_stack_lvl+0x8c/0xd0
[   30.737513]  print_report+0x310/0x608
[   30.737641]  kasan_report+0xdc/0x128
[   30.737787]  __asan_report_load1_noabort+0x20/0x30
[   30.737969]  kasan_global_oob_right+0x230/0x270
[   30.738160]  kunit_try_run_case+0x170/0x3f0
[   30.738438]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.738777]  kthread+0x328/0x630
[   30.739205]  ret_from_fork+0x10/0x20
[   30.739652] 
[   30.739797] The buggy address belongs to the variable:
[   30.740307]  global_array+0xd/0x40
[   30.740640] 
[   30.741043] The buggy address belongs to the virtual mapping at
[   30.741043]  [ffffa3ab94410000, ffffa3ab962a1000) created by:
[   30.741043]  paging_init+0x66c/0x7d0
[   30.741481] 
[   30.742004] The buggy address belongs to the physical page:
[   30.742202] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47bf1
[   30.742644] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   30.743029] raw: 03fffe0000002000 ffffc1ffc01efc48 ffffc1ffc01efc48 0000000000000000
[   30.743590] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.744163] page dumped because: kasan: bad access detected
[   30.744217] 
[   30.744247] Memory state around the buggy address:
[   30.744321]  ffffa3ab961f1380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.744472]  ffffa3ab961f1400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.744610] >ffffa3ab961f1480: 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9 00 02 f9 f9
[   30.744731]                                                           ^
[   30.744849]  ffffa3ab961f1500: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
[   30.744957]  ffffa3ab961f1580: f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
[   30.745237] ==================================================================

[   14.395949] ==================================================================
[   14.396522] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   14.396841] Read of size 1 at addr ffffffffa50422ad by task kunit_try_catch/264
[   14.397252] 
[   14.397412] CPU: 1 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc7 #1 PREEMPT(voluntary) 
[   14.397461] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.397474] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.397496] Call Trace:
[   14.397508]  <TASK>
[   14.397524]  dump_stack_lvl+0x73/0xb0
[   14.397553]  print_report+0xd1/0x650
[   14.397576]  ? __virt_addr_valid+0x1db/0x2d0
[   14.397599]  ? kasan_global_oob_right+0x286/0x2d0
[   14.397621]  ? kasan_addr_to_slab+0x11/0xa0
[   14.397642]  ? kasan_global_oob_right+0x286/0x2d0
[   14.397665]  kasan_report+0x141/0x180
[   14.397688]  ? kasan_global_oob_right+0x286/0x2d0
[   14.397715]  __asan_report_load1_noabort+0x18/0x20
[   14.397736]  kasan_global_oob_right+0x286/0x2d0
[   14.397758]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   14.397783]  ? __schedule+0x10cc/0x2b30
[   14.397807]  ? __pfx_read_tsc+0x10/0x10
[   14.397827]  ? ktime_get_ts64+0x86/0x230
[   14.397853]  kunit_try_run_case+0x1a5/0x480
[   14.397931]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.397958]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.397982]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.398005]  ? __kthread_parkme+0x82/0x180
[   14.398027]  ? preempt_count_sub+0x50/0x80
[   14.398053]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.398077]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.398100]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.398123]  kthread+0x337/0x6f0
[   14.398140]  ? trace_preempt_on+0x20/0xc0
[   14.398162]  ? __pfx_kthread+0x10/0x10
[   14.398180]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.398201]  ? calculate_sigpending+0x7b/0xa0
[   14.398222]  ? __pfx_kthread+0x10/0x10
[   14.398240]  ret_from_fork+0x41/0x80
[   14.398262]  ? __pfx_kthread+0x10/0x10
[   14.398280]  ret_from_fork_asm+0x1a/0x30
[   14.398325]  </TASK>
[   14.398338] 
[   14.406082] The buggy address belongs to the variable:
[   14.406526]  global_array+0xd/0x40
[   14.406692] 
[   14.406785] The buggy address belongs to the physical page:
[   14.407042] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x159242
[   14.407565] flags: 0x200000000002000(reserved|node=0|zone=2)
[   14.407853] raw: 0200000000002000 ffffea0005649088 ffffea0005649088 0000000000000000
[   14.408209] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   14.408494] page dumped because: kasan: bad access detected
[   14.408670] 
[   14.408741] Memory state around the buggy address:
[   14.408964]  ffffffffa5042180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.409286]  ffffffffa5042200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.409685] >ffffffffa5042280: 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9
[   14.410002]                                   ^
[   14.410235]  ffffffffa5042300: f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9
[   14.410745]  ffffffffa5042380: f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
[   14.411088] ==================================================================