Hay
Date
July 5, 2025, 11:09 a.m.

Environment
qemu-arm64
qemu-x86_64

[   18.530971] ==================================================================
[   18.531093] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x40c/0x488
[   18.531197] Write of size 1 at addr fff00000c56f1678 by task kunit_try_catch/143
[   18.531294] 
[   18.531352] CPU: 0 UID: 0 PID: 143 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT 
[   18.531522] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.531575] Hardware name: linux,dummy-virt (DT)
[   18.531634] Call trace:
[   18.531677]  show_stack+0x20/0x38 (C)
[   18.531776]  dump_stack_lvl+0x8c/0xd0
[   18.531891]  print_report+0x118/0x608
[   18.531995]  kasan_report+0xdc/0x128
[   18.532095]  __asan_report_store1_noabort+0x20/0x30
[   18.532202]  kmalloc_track_caller_oob_right+0x40c/0x488
[   18.532587]  kunit_try_run_case+0x170/0x3f0
[   18.532727]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.533121]  kthread+0x328/0x630
[   18.534066]  ret_from_fork+0x10/0x20
[   18.534156] 
[   18.534194] Allocated by task 143:
[   18.534256]  kasan_save_stack+0x3c/0x68
[   18.534678]  kasan_save_track+0x20/0x40
[   18.534762]  kasan_save_alloc_info+0x40/0x58
[   18.534846]  __kasan_kmalloc+0xd4/0xd8
[   18.534925]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   18.535040]  kmalloc_track_caller_oob_right+0xa8/0x488
[   18.535131]  kunit_try_run_case+0x170/0x3f0
[   18.535222]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.535315]  kthread+0x328/0x630
[   18.535405]  ret_from_fork+0x10/0x20
[   18.535470] 
[   18.535503] The buggy address belongs to the object at fff00000c56f1600
[   18.535503]  which belongs to the cache kmalloc-128 of size 128
[   18.535606] The buggy address is located 0 bytes to the right of
[   18.535606]  allocated 120-byte region [fff00000c56f1600, fff00000c56f1678)
[   18.535736] 
[   18.535788] The buggy address belongs to the physical page:
[   18.535860] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056f1
[   18.535973] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.536076] page_type: f5(slab)
[   18.536157] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.536266] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.536377] page dumped because: kasan: bad access detected
[   18.536437] 
[   18.536472] Memory state around the buggy address:
[   18.536533]  fff00000c56f1500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.536679]  fff00000c56f1580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.536921] >fff00000c56f1600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.537006]                                                                 ^
[   18.537111]  fff00000c56f1680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.537200]  fff00000c56f1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.537479] ==================================================================

[   12.895726] ==================================================================
[   12.896531] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4b1/0x520
[   12.897090] Write of size 1 at addr ffff8881029df678 by task kunit_try_catch/159
[   12.897459] 
[   12.897594] CPU: 0 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[   12.897658] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.897673] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.897698] Call Trace:
[   12.897714]  <TASK>
[   12.897736]  dump_stack_lvl+0x73/0xb0
[   12.897771]  print_report+0xd1/0x650
[   12.897796]  ? __virt_addr_valid+0x1db/0x2d0
[   12.897824]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   12.897852]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.897877]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   12.897906]  kasan_report+0x141/0x180
[   12.897931]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   12.897965]  __asan_report_store1_noabort+0x1b/0x30
[   12.897989]  kmalloc_track_caller_oob_right+0x4b1/0x520
[   12.898017]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   12.898047]  ? __schedule+0x10cc/0x2b60
[   12.898073]  ? __pfx_read_tsc+0x10/0x10
[   12.898098]  ? ktime_get_ts64+0x86/0x230
[   12.898127]  kunit_try_run_case+0x1a5/0x480
[   12.898156]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.898184]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.898211]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.898237]  ? __kthread_parkme+0x82/0x180
[   12.898261]  ? preempt_count_sub+0x50/0x80
[   12.898288]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.898315]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.898341]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.898367]  kthread+0x337/0x6f0
[   12.898389]  ? trace_preempt_on+0x20/0xc0
[   12.898416]  ? __pfx_kthread+0x10/0x10
[   12.898450]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.898473]  ? calculate_sigpending+0x7b/0xa0
[   12.898501]  ? __pfx_kthread+0x10/0x10
[   12.898526]  ret_from_fork+0x116/0x1d0
[   12.898547]  ? __pfx_kthread+0x10/0x10
[   12.898570]  ret_from_fork_asm+0x1a/0x30
[   12.898605]  </TASK>
[   12.898618] 
[   12.909525] Allocated by task 159:
[   12.910251]  kasan_save_stack+0x45/0x70
[   12.910527]  kasan_save_track+0x18/0x40
[   12.910742]  kasan_save_alloc_info+0x3b/0x50
[   12.911256]  __kasan_kmalloc+0xb7/0xc0
[   12.911482]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   12.911788]  kmalloc_track_caller_oob_right+0x19a/0x520
[   12.912064]  kunit_try_run_case+0x1a5/0x480
[   12.912315]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.912594]  kthread+0x337/0x6f0
[   12.913321]  ret_from_fork+0x116/0x1d0
[   12.913552]  ret_from_fork_asm+0x1a/0x30
[   12.914009] 
[   12.914134] The buggy address belongs to the object at ffff8881029df600
[   12.914134]  which belongs to the cache kmalloc-128 of size 128
[   12.915185] The buggy address is located 0 bytes to the right of
[   12.915185]  allocated 120-byte region [ffff8881029df600, ffff8881029df678)
[   12.915978] 
[   12.916091] The buggy address belongs to the physical page:
[   12.916398] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df
[   12.917199] flags: 0x200000000000000(node=0|zone=2)
[   12.917462] page_type: f5(slab)
[   12.918013] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   12.918410] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   12.919108] page dumped because: kasan: bad access detected
[   12.919344] 
[   12.919716] Memory state around the buggy address:
[   12.920300]  ffff8881029df500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   12.920767]  ffff8881029df580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.921371] >ffff8881029df600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   12.921864]                                                                 ^
[   12.922429]  ffff8881029df680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.923223]  ffff8881029df700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.923530] ==================================================================
[   12.855272] ==================================================================
[   12.856411] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4c8/0x520
[   12.857015] Write of size 1 at addr ffff8881029df578 by task kunit_try_catch/159
[   12.857302] 
[   12.857422] CPU: 0 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[   12.857482] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.857498] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.857527] Call Trace:
[   12.857543]  <TASK>
[   12.857569]  dump_stack_lvl+0x73/0xb0
[   12.857607]  print_report+0xd1/0x650
[   12.857634]  ? __virt_addr_valid+0x1db/0x2d0
[   12.857677]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   12.857707]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.857732]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   12.857761]  kasan_report+0x141/0x180
[   12.857786]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   12.857820]  __asan_report_store1_noabort+0x1b/0x30
[   12.857844]  kmalloc_track_caller_oob_right+0x4c8/0x520
[   12.857871]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   12.857901]  ? __schedule+0x10cc/0x2b60
[   12.857927]  ? __pfx_read_tsc+0x10/0x10
[   12.857952]  ? ktime_get_ts64+0x86/0x230
[   12.857982]  kunit_try_run_case+0x1a5/0x480
[   12.858013]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.858038]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.858066]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.858092]  ? __kthread_parkme+0x82/0x180
[   12.858117]  ? preempt_count_sub+0x50/0x80
[   12.858144]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.858172]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.858197]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.858223]  kthread+0x337/0x6f0
[   12.858246]  ? trace_preempt_on+0x20/0xc0
[   12.858273]  ? __pfx_kthread+0x10/0x10
[   12.858296]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.858320]  ? calculate_sigpending+0x7b/0xa0
[   12.858349]  ? __pfx_kthread+0x10/0x10
[   12.858373]  ret_from_fork+0x116/0x1d0
[   12.858394]  ? __pfx_kthread+0x10/0x10
[   12.858417]  ret_from_fork_asm+0x1a/0x30
[   12.858461]  </TASK>
[   12.858475] 
[   12.873124] Allocated by task 159:
[   12.873315]  kasan_save_stack+0x45/0x70
[   12.873503]  kasan_save_track+0x18/0x40
[   12.873675]  kasan_save_alloc_info+0x3b/0x50
[   12.874564]  __kasan_kmalloc+0xb7/0xc0
[   12.875625]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   12.876825]  kmalloc_track_caller_oob_right+0x99/0x520
[   12.877944]  kunit_try_run_case+0x1a5/0x480
[   12.878616]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.879459]  kthread+0x337/0x6f0
[   12.879622]  ret_from_fork+0x116/0x1d0
[   12.879796]  ret_from_fork_asm+0x1a/0x30
[   12.880421] 
[   12.880821] The buggy address belongs to the object at ffff8881029df500
[   12.880821]  which belongs to the cache kmalloc-128 of size 128
[   12.882734] The buggy address is located 0 bytes to the right of
[   12.882734]  allocated 120-byte region [ffff8881029df500, ffff8881029df578)
[   12.884595] 
[   12.885060] The buggy address belongs to the physical page:
[   12.885287] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df
[   12.885585] flags: 0x200000000000000(node=0|zone=2)
[   12.886139] page_type: f5(slab)
[   12.886909] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   12.888004] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   12.889272] page dumped because: kasan: bad access detected
[   12.889986] 
[   12.890349] Memory state around the buggy address:
[   12.891171]  ffff8881029df400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   12.891453]  ffff8881029df480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.891737] >ffff8881029df500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   12.892504]                                                                 ^
[   12.893377]  ffff8881029df580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.893761]  ffff8881029df600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.894611] ==================================================================