Hay
Date
July 2, 2025, 11:10 a.m.

Environment
qemu-arm64
qemu-x86_64

[   30.583586] ==================================================================
[   30.584032] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   30.584252] Write of size 1 at addr fff00000c99ce00a by task kunit_try_catch/179
[   30.584354] 
[   30.584413] CPU: 0 UID: 0 PID: 179 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT 
[   30.584945] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.584982] Hardware name: linux,dummy-virt (DT)
[   30.585144] Call trace:
[   30.585212]  show_stack+0x20/0x38 (C)
[   30.585400]  dump_stack_lvl+0x8c/0xd0
[   30.585570]  print_report+0x118/0x608
[   30.585647]  kasan_report+0xdc/0x128
[   30.585704]  __asan_report_store1_noabort+0x20/0x30
[   30.585996]  kmalloc_large_oob_right+0x278/0x2b8
[   30.586398]  kunit_try_run_case+0x170/0x3f0
[   30.586561]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.586684]  kthread+0x328/0x630
[   30.586741]  ret_from_fork+0x10/0x20
[   30.586953] 
[   30.587022] The buggy address belongs to the physical page:
[   30.587279] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099cc
[   30.587477] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   30.587658] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   30.587769] page_type: f8(unknown)
[   30.587976] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.588257] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   30.588343] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.588399] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   30.588448] head: 0bfffe0000000002 ffffc1ffc3267301 00000000ffffffff 00000000ffffffff
[   30.588495] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   30.588821] page dumped because: kasan: bad access detected
[   30.588988] 
[   30.589040] Memory state around the buggy address:
[   30.589099]  fff00000c99cdf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.589249]  fff00000c99cdf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.589310] >fff00000c99ce000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.589581]                       ^
[   30.589797]  fff00000c99ce080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.589882]  fff00000c99ce100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.590025] ==================================================================

[   32.402564] ==================================================================
[   32.402631] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   32.402887] Write of size 1 at addr fff00000c99ea00a by task kunit_try_catch/177
[   32.403121] 
[   32.403321] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT 
[   32.403412] Tainted: [B]=BAD_PAGE, [N]=TEST
[   32.403437] Hardware name: linux,dummy-virt (DT)
[   32.403481] Call trace:
[   32.403641]  show_stack+0x20/0x38 (C)
[   32.403795]  dump_stack_lvl+0x8c/0xd0
[   32.403865]  print_report+0x118/0x608
[   32.403962]  kasan_report+0xdc/0x128
[   32.404039]  __asan_report_store1_noabort+0x20/0x30
[   32.404089]  kmalloc_large_oob_right+0x278/0x2b8
[   32.404138]  kunit_try_run_case+0x170/0x3f0
[   32.404198]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.404333]  kthread+0x328/0x630
[   32.404415]  ret_from_fork+0x10/0x20
[   32.404463] 
[   32.404503] The buggy address belongs to the physical page:
[   32.404561] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099e8
[   32.404719] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   32.404765] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   32.404821] page_type: f8(unknown)
[   32.404859] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   32.404908] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   32.405096] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   32.405146] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   32.405247] head: 0bfffe0000000002 ffffc1ffc3267a01 00000000ffffffff 00000000ffffffff
[   32.405429] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   32.405474] page dumped because: kasan: bad access detected
[   32.405554] 
[   32.405572] Memory state around the buggy address:
[   32.405604]  fff00000c99e9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   32.405645]  fff00000c99e9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   32.405851] >fff00000c99ea000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   32.405954]                       ^
[   32.406014]  fff00000c99ea080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   32.406088]  fff00000c99ea100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   32.406139] ==================================================================

[   22.611953] ==================================================================
[   22.612401] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2e9/0x330
[   22.612761] Write of size 1 at addr ffff8881060c200a by task kunit_try_catch/194
[   22.613044] 
[   22.613134] CPU: 0 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) 
[   22.613183] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.613196] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   22.613217] Call Trace:
[   22.613229]  <TASK>
[   22.613247]  dump_stack_lvl+0x73/0xb0
[   22.613276]  print_report+0xd1/0x650
[   22.613298]  ? __virt_addr_valid+0x1db/0x2d0
[   22.613334]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.613355]  ? kasan_addr_to_slab+0x11/0xa0
[   22.613374]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.613395]  kasan_report+0x141/0x180
[   22.613417]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.613443]  __asan_report_store1_noabort+0x1b/0x30
[   22.613467]  kmalloc_large_oob_right+0x2e9/0x330
[   22.613488]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   22.613521]  ? __schedule+0x10cc/0x2b60
[   22.613542]  ? __pfx_read_tsc+0x10/0x10
[   22.613563]  ? ktime_get_ts64+0x86/0x230
[   22.613588]  kunit_try_run_case+0x1a5/0x480
[   22.613613]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.613636]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   22.613657]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   22.613689]  ? __kthread_parkme+0x82/0x180
[   22.613709]  ? preempt_count_sub+0x50/0x80
[   22.613732]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.613764]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   22.613787]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   22.613811]  kthread+0x337/0x6f0
[   22.613830]  ? trace_preempt_on+0x20/0xc0
[   22.613854]  ? __pfx_kthread+0x10/0x10
[   22.613874]  ? _raw_spin_unlock_irq+0x47/0x80
[   22.613897]  ? calculate_sigpending+0x7b/0xa0
[   22.613921]  ? __pfx_kthread+0x10/0x10
[   22.613942]  ret_from_fork+0x116/0x1d0
[   22.613960]  ? __pfx_kthread+0x10/0x10
[   22.613980]  ret_from_fork_asm+0x1a/0x30
[   22.614011]  </TASK>
[   22.614023] 
[   22.621069] The buggy address belongs to the physical page:
[   22.621396] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060c0
[   22.621766] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   22.622027] flags: 0x200000000000040(head|node=0|zone=2)
[   22.622291] page_type: f8(unknown)
[   22.622464] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   22.623023] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   22.623300] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   22.623548] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   22.623898] head: 0200000000000002 ffffea0004183001 00000000ffffffff 00000000ffffffff
[   22.624259] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   22.625030] page dumped because: kasan: bad access detected
[   22.625276] 
[   22.625383] Memory state around the buggy address:
[   22.625903]  ffff8881060c1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.626207]  ffff8881060c1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.626789] >ffff8881060c2000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.627107]                       ^
[   22.627257]  ffff8881060c2080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.627901]  ffff8881060c2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.628168] ==================================================================

[   22.801402] ==================================================================
[   22.801957] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2e9/0x330
[   22.803097] Write of size 1 at addr ffff8881057a200a by task kunit_try_catch/195
[   22.804083] 
[   22.804287] CPU: 0 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) 
[   22.804345] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.804360] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   22.804383] Call Trace:
[   22.804397]  <TASK>
[   22.804419]  dump_stack_lvl+0x73/0xb0
[   22.804455]  print_report+0xd1/0x650
[   22.804479]  ? __virt_addr_valid+0x1db/0x2d0
[   22.804503]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.804524]  ? kasan_addr_to_slab+0x11/0xa0
[   22.804544]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.804566]  kasan_report+0x141/0x180
[   22.804587]  ? kmalloc_large_oob_right+0x2e9/0x330
[   22.804613]  __asan_report_store1_noabort+0x1b/0x30
[   22.804637]  kmalloc_large_oob_right+0x2e9/0x330
[   22.804658]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   22.804682]  ? __schedule+0x10cc/0x2b60
[   22.804704]  ? __pfx_read_tsc+0x10/0x10
[   22.804726]  ? ktime_get_ts64+0x86/0x230
[   22.804751]  kunit_try_run_case+0x1a5/0x480
[   22.804778]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.804801]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   22.804823]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   22.804844]  ? __kthread_parkme+0x82/0x180
[   22.804864]  ? preempt_count_sub+0x50/0x80
[   22.804887]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.804912]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   22.804953]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   22.804977]  kthread+0x337/0x6f0
[   22.804997]  ? trace_preempt_on+0x20/0xc0
[   22.805020]  ? __pfx_kthread+0x10/0x10
[   22.805041]  ? _raw_spin_unlock_irq+0x47/0x80
[   22.805074]  ? calculate_sigpending+0x7b/0xa0
[   22.805098]  ? __pfx_kthread+0x10/0x10
[   22.805119]  ret_from_fork+0x116/0x1d0
[   22.805137]  ? __pfx_kthread+0x10/0x10
[   22.805158]  ret_from_fork_asm+0x1a/0x30
[   22.805220]  </TASK>
[   22.805234] 
[   22.817613] The buggy address belongs to the physical page:
[   22.818177] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1057a0
[   22.818767] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   22.819084] flags: 0x200000000000040(head|node=0|zone=2)
[   22.819642] page_type: f8(unknown)
[   22.820119] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   22.820849] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   22.821308] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   22.821981] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   22.822665] head: 0200000000000002 ffffea000415e801 00000000ffffffff 00000000ffffffff
[   22.823432] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   22.824104] page dumped because: kasan: bad access detected
[   22.824417] 
[   22.824605] Memory state around the buggy address:
[   22.824813]  ffff8881057a1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.825080]  ffff8881057a1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   22.825745] >ffff8881057a2000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.826484]                       ^
[   22.826845]  ffff8881057a2080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.827588]  ffff8881057a2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   22.828275] ==================================================================