Hay
Date
July 24, 2025, 4:41 a.m.

Environment
qemu-arm64
qemu-x86_64

[   34.708789] ==================================================================
[   34.708868] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x230/0x270
[   34.708938] Read of size 1 at addr ffffa667f2f8e68d by task kunit_try_catch/276
[   34.708994] 
[   34.709057] CPU: 1 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7-next-20250724 #1 PREEMPT 
[   34.709156] Tainted: [B]=BAD_PAGE, [N]=TEST
[   34.709194] Hardware name: linux,dummy-virt (DT)
[   34.709231] Call trace:
[   34.709267]  show_stack+0x20/0x38 (C)
[   34.709322]  dump_stack_lvl+0x8c/0xd0
[   34.709373]  print_report+0x310/0x5e8
[   34.709420]  kasan_report+0xdc/0x128
[   34.709474]  __asan_report_load1_noabort+0x20/0x30
[   34.709525]  kasan_global_oob_right+0x230/0x270
[   34.709574]  kunit_try_run_case+0x170/0x3f0
[   34.709625]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   34.709687]  kthread+0x328/0x630
[   34.709738]  ret_from_fork+0x10/0x20
[   34.710068] 
[   34.710364] The buggy address belongs to the variable:
[   34.710414]  global_array+0xd/0x40
[   34.710474] 
[   34.710534] The buggy address belongs to a vmalloc virtual mapping
[   34.712563] The buggy address belongs to the physical page:
[   34.712613] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x47d8e
[   34.712700] flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
[   34.712806] raw: 03fffe0000002000 ffffc1ffc01f6388 ffffc1ffc01f6388 0000000000000000
[   34.712859] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   34.713083] page dumped because: kasan: bad access detected
[   34.713167] 
[   34.713207] Memory state around the buggy address:
[   34.713249]  ffffa667f2f8e580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.713317]  ffffa667f2f8e600: 00 00 00 00 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9
[   34.713396] >ffffa667f2f8e680: 00 02 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 f9 f9 f9 f9
[   34.713528]                       ^
[   34.713592]  ffffa667f2f8e700: 00 f9 f9 f9 f9 f9 f9 f9 01 f9 f9 f9 f9 f9 f9 f9
[   34.713687]  ffffa667f2f8e780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   34.713779] ==================================================================

[   28.682505] ==================================================================
[   28.683313] BUG: KASAN: global-out-of-bounds in kasan_global_oob_right+0x286/0x2d0
[   28.683646] Read of size 1 at addr ffffffffab2cb00d by task kunit_try_catch/293
[   28.684064] 
[   28.684201] CPU: 0 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G    B   W        N  6.16.0-rc7-next-20250724 #1 PREEMPT(voluntary) 
[   28.684257] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   28.684271] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   28.684294] Call Trace:
[   28.684308]  <TASK>
[   28.684326]  dump_stack_lvl+0x73/0xb0
[   28.684356]  print_report+0xd1/0x640
[   28.684379]  ? __virt_addr_valid+0x1db/0x2d0
[   28.684405]  ? kasan_global_oob_right+0x286/0x2d0
[   28.684425]  ? kasan_addr_to_slab+0x11/0xa0
[   28.684446]  ? kasan_global_oob_right+0x286/0x2d0
[   28.684467]  kasan_report+0x141/0x180
[   28.684489]  ? kasan_global_oob_right+0x286/0x2d0
[   28.684515]  __asan_report_load1_noabort+0x18/0x20
[   28.684538]  kasan_global_oob_right+0x286/0x2d0
[   28.684560]  ? __pfx_kasan_global_oob_right+0x10/0x10
[   28.684597]  ? __schedule+0x10da/0x2b60
[   28.684622]  ? __pfx_read_tsc+0x10/0x10
[   28.684643]  ? ktime_get_ts64+0x86/0x230
[   28.684668]  kunit_try_run_case+0x1a5/0x480
[   28.684694]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.684716]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   28.684740]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.684764]  ? __kthread_parkme+0x82/0x180
[   28.684828]  ? preempt_count_sub+0x50/0x80
[   28.684855]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.684879]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.684903]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.684927]  kthread+0x337/0x6f0
[   28.684962]  ? trace_preempt_on+0x20/0xc0
[   28.684986]  ? __pfx_kthread+0x10/0x10
[   28.685006]  ? _raw_spin_unlock_irq+0x47/0x80
[   28.685031]  ? calculate_sigpending+0x7b/0xa0
[   28.685054]  ? __pfx_kthread+0x10/0x10
[   28.685075]  ret_from_fork+0x116/0x1d0
[   28.685094]  ? __pfx_kthread+0x10/0x10
[   28.685114]  ret_from_fork_asm+0x1a/0x30
[   28.685145]  </TASK>
[   28.685156] 
[   28.694741] The buggy address belongs to the variable:
[   28.695337]  global_array+0xd/0x40
[   28.695533] 
[   28.695701] The buggy address belongs to the physical page:
[   28.696219] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13e2cb
[   28.696516] flags: 0x200000000002000(reserved|node=0|zone=2)
[   28.696942] raw: 0200000000002000 ffffea0004f8b2c8 ffffea0004f8b2c8 0000000000000000
[   28.697260] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   28.697589] page dumped because: kasan: bad access detected
[   28.697819] 
[   28.698144] Memory state around the buggy address:
[   28.698322]  ffffffffab2caf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.698826]  ffffffffab2caf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.699238] >ffffffffab2cb000: 00 02 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
[   28.699523]                       ^
[   28.699820]  ffffffffab2cb080: 04 f9 f9 f9 f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9
[   28.700288]  ffffffffab2cb100: 01 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 00
[   28.700667] ==================================================================