Hay
Date
May 13, 2025, 12:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   21.293414] ==================================================================
[   21.293529] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   21.294052] Read of size 1 at addr ffff99d6cad2e60d by task kunit_try_catch/245
[   21.294258] 
[   21.294341] CPU: 1 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT 
[   21.294444] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.294853] Hardware name: linux,dummy-virt (DT)
[   21.294894] Call trace:
[   21.294925]  show_stack+0x20/0x38 (C)
[   21.295153]  dump_stack_lvl+0x8c/0xd0
[   21.295222]  print_report+0x310/0x608
[   21.295279]  kasan_report+0xdc/0x128
[   21.295328]  __asan_report_load1_noabort+0x20/0x30
[   21.296015]  kasan_global_oob_right+0x230/0x270
[   21.296114]  kunit_try_run_case+0x170/0x3f0
[   21.296179]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.296459]  kthread+0x328/0x630
[   21.296686]  ret_from_fork+0x10/0x20
[   21.296773] 
[   21.297030] The buggy address belongs to the variable:
[   21.297193]  global_array+0xd/0x40
[   21.297535] 
[   21.297669] The buggy address belongs to the virtual mapping at
[   21.297669]  [ffff99d6c8ee0000, ffff99d6cade1000) created by:
[   21.297669]  paging_init+0x66c/0x7d0
[   21.297978] 
[   21.298621] The buggy address belongs to the physical page:
[   21.298834] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d2e
[   21.299032] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   21.299258] raw: 03fffe0000002000 ffffc1ffc01f4b88 ffffc1ffc01f4b88 0000000000000000
[   21.299462] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.299521] page dumped because: kasan: bad access detected
[   21.299564] 
[   21.299734] Memory state around the buggy address:
[   21.299784]  ffff99d6cad2e500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.299850]  ffff99d6cad2e580: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   21.300126] >ffff99d6cad2e600: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   21.300301]                       ^
[   21.300355]  ffff99d6cad2e680: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   21.300409]  ffff99d6cad2e700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.300451] ==================================================================

[   12.903330] ==================================================================
[   12.904106] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   12.904517] Read of size 1 at addr ffffffff9445ef0d by task kunit_try_catch/262
[   12.905009] 
[   12.905155] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) 
[   12.905218] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.905231] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.905253] Call Trace:
[   12.905267]  <TASK>
[   12.905283]  dump_stack_lvl+0x73/0xb0
[   12.905314]  print_report+0xd1/0x650
[   12.905338]  ? __virt_addr_valid+0x1db/0x2d0
[   12.905364]  ? kasan_global_oob_right+0x286/0x2d0
[   12.905387]  ? kasan_addr_to_slab+0x11/0xa0
[   12.905410]  ? kasan_global_oob_right+0x286/0x2d0
[   12.905432]  kasan_report+0x141/0x180
[   12.905455]  ? kasan_global_oob_right+0x286/0x2d0
[   12.905483]  __asan_report_load1_noabort+0x18/0x20
[   12.905504]  kasan_global_oob_right+0x286/0x2d0
[   12.905609]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   12.905650]  ? __kasan_check_write+0x18/0x20
[   12.905671]  ? queued_spin_lock_slowpath+0x116/0xb40
[   12.905697]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[   12.905722]  ? __pfx_read_tsc+0x10/0x10
[   12.905745]  ? ktime_get_ts64+0x86/0x230
[   12.905772]  kunit_try_run_case+0x1a5/0x480
[   12.905798]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.905820]  ? _raw_spin_lock_irqsave+0xf9/0x100
[   12.905842]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.905865]  ? __kthread_parkme+0x82/0x180
[   12.905887]  ? preempt_count_sub+0x50/0x80
[   12.905912]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.905937]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.905960]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.905984]  kthread+0x337/0x6f0
[   12.906004]  ? trace_preempt_on+0x20/0xc0
[   12.906029]  ? __pfx_kthread+0x10/0x10
[   12.906050]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.906071]  ? calculate_sigpending+0x7b/0xa0
[   12.906095]  ? __pfx_kthread+0x10/0x10
[   12.906117]  ret_from_fork+0x116/0x1d0
[   12.906135]  ? __pfx_kthread+0x10/0x10
[   12.906158]  ret_from_fork_asm+0x1a/0x30
[   12.906199]  </TASK>
[   12.906211] 
[   12.914506] The buggy address belongs to the variable:
[   12.914752]  global_array+0xd/0x40
[   12.914943] 
[   12.915035] The buggy address belongs to the physical page:
[   12.915399] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16e65e
[   12.915656] flags: 0x200000000002000(reserved|node=0|zone=2)
[   12.915933] raw: 0200000000002000 ffffea0005b99788 ffffea0005b99788 0000000000000000
[   12.916330] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   12.916558] page dumped because: kasan: bad access detected
[   12.916745] 
[   12.916839] Memory state around the buggy address:
[   12.917063]  ffffffff9445ee00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   12.917693]  ffffffff9445ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   12.917920] >ffffffff9445ef00: 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   12.918204]                       ^
[   12.918386]  ffffffff9445ef80: 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9
[   12.918994]  ffffffff9445f000: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   12.919461] ==================================================================