Hay
Date
June 23, 2025, 7:07 a.m.

Environment
qemu-arm64
qemu-x86_64

[   35.816332] ==================================================================
[   35.816453] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   35.816570] Read of size 1 at addr ffffa42cff05668d by task kunit_try_catch/257
[   35.816683] 
[   35.816757] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT 
[   35.816948] Tainted: [B]=BAD_PAGE, [N]=TEST
[   35.817009] Hardware name: linux,dummy-virt (DT)
[   35.821809] Call trace:
[   35.821914]  show_stack+0x20/0x38 (C)
[   35.822617]  dump_stack_lvl+0x8c/0xd0
[   35.822799]  print_report+0x310/0x608
[   35.823696]  kasan_report+0xdc/0x128
[   35.823825]  __asan_report_load1_noabort+0x20/0x30
[   35.824460]  kasan_global_oob_right+0x230/0x270
[   35.825166]  kunit_try_run_case+0x170/0x3f0
[   35.825305]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   35.825649]  kthread+0x328/0x630
[   35.825995]  ret_from_fork+0x10/0x20
[   35.826232] 
[   35.826717] The buggy address belongs to the variable:
[   35.826818]  global_array+0xd/0x40
[   35.826912] 
[   35.827007] The buggy address belongs to the virtual mapping at
[   35.827007]  [ffffa42cfd210000, ffffa42cff111000) created by:
[   35.827007]  paging_init+0x66c/0x7d0
[   35.827260] 
[   35.827588] The buggy address belongs to the physical page:
[   35.827674] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47c56
[   35.827859] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   35.828046] raw: 03fffe0000002000 ffffc1ffc01f1588 ffffc1ffc01f1588 0000000000000000
[   35.828196] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   35.828294] page dumped because: kasan: bad access detected
[   35.828366] 
[   35.828416] Memory state around the buggy address:
[   35.828509]  ffffa42cff056580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.828616]  ffffa42cff056600: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   35.828721] >ffffa42cff056680: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   35.828812]                       ^
[   35.828892]  ffffa42cff056700: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   35.828997]  ffffa42cff056780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   35.829128] ==================================================================

[   23.677579] ==================================================================
[   23.678466] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   23.678906] Read of size 1 at addr ffffffffbbc82ecd by task kunit_try_catch/274
[   23.679621] 
[   23.679817] CPU: 0 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) 
[   23.679880] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.679893] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.679912] Call Trace:
[   23.679926]  <TASK>
[   23.679942]  dump_stack_lvl+0x73/0xb0
[   23.679972]  print_report+0xd1/0x650
[   23.679992]  ? __virt_addr_valid+0x1db/0x2d0
[   23.680012]  ? kasan_global_oob_right+0x286/0x2d0
[   23.680030]  ? kasan_addr_to_slab+0x11/0xa0
[   23.680051]  ? kasan_global_oob_right+0x286/0x2d0
[   23.680079]  kasan_report+0x141/0x180
[   23.680108]  ? kasan_global_oob_right+0x286/0x2d0
[   23.680143]  __asan_report_load1_noabort+0x18/0x20
[   23.680174]  kasan_global_oob_right+0x286/0x2d0
[   23.680203]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   23.680225]  ? __schedule+0x10cc/0x2b60
[   23.680245]  ? __pfx_read_tsc+0x10/0x10
[   23.680264]  ? ktime_get_ts64+0x86/0x230
[   23.680285]  kunit_try_run_case+0x1a5/0x480
[   23.680307]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.680327]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.680346]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.680366]  ? __kthread_parkme+0x82/0x180
[   23.680404]  ? preempt_count_sub+0x50/0x80
[   23.680438]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.680474]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.680511]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.680544]  kthread+0x337/0x6f0
[   23.680768]  ? trace_preempt_on+0x20/0xc0
[   23.680861]  ? __pfx_kthread+0x10/0x10
[   23.680924]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.680967]  ? calculate_sigpending+0x7b/0xa0
[   23.681010]  ? __pfx_kthread+0x10/0x10
[   23.681043]  ret_from_fork+0x116/0x1d0
[   23.681082]  ? __pfx_kthread+0x10/0x10
[   23.681113]  ret_from_fork_asm+0x1a/0x30
[   23.681153]  </TASK>
[   23.681170] 
[   23.690998] The buggy address belongs to the variable:
[   23.691694]  global_array+0xd/0x40
[   23.692024] 
[   23.692418] The buggy address belongs to the physical page:
[   23.692798] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14682
[   23.693320] flags: 0x100000000002000(reserved|node=0|zone=1)
[   23.693699] raw: 0100000000002000 ffffea000051a088 ffffea000051a088 0000000000000000
[   23.694105] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   23.694535] page dumped because: kasan: bad access detected
[   23.694849] 
[   23.694955] Memory state around the buggy address:
[   23.695115]  ffffffffbbc82d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.695859]  ffffffffbbc82e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.696399] >ffffffffbbc82e80: 00 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9
[   23.696672]                                               ^
[   23.697062]  ffffffffbbc82f00: 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   23.697660]  ffffffffbbc82f80: 02 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   23.698259] ==================================================================