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Date
July 13, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64 

[   15.981438] ==================================================================
[   15.981523] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0
[   15.981578] Read of size 64 at addr fff00000c654e404 by task kunit_try_catch/183
[   15.981653] 
[   15.981832] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   15.981948] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.982239] Hardware name: linux,dummy-virt (DT)
[   15.982284] Call trace:
[   15.982329]  show_stack+0x20/0x38 (C)
[   15.982451]  dump_stack_lvl+0x8c/0xd0
[   15.982502]  print_report+0x118/0x5d0
[   15.982548]  kasan_report+0xdc/0x128
[   15.982594]  kasan_check_range+0x100/0x1a8
[   15.982688]  __asan_memmove+0x3c/0x98
[   15.982753]  kmalloc_memmove_invalid_size+0x154/0x2e0
[   15.982820]  kunit_try_run_case+0x170/0x3f0
[   15.983014]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.983084]  kthread+0x328/0x630
[   15.983397]  ret_from_fork+0x10/0x20
[   15.983491] 
[   15.983522] Allocated by task 183:
[   15.983562]  kasan_save_stack+0x3c/0x68
[   15.983604]  kasan_save_track+0x20/0x40
[   15.983643]  kasan_save_alloc_info+0x40/0x58
[   15.983769]  __kasan_kmalloc+0xd4/0xd8
[   15.983828]  __kmalloc_cache_noprof+0x16c/0x3c0
[   15.983870]  kmalloc_memmove_invalid_size+0xb0/0x2e0
[   15.984040]  kunit_try_run_case+0x170/0x3f0
[   15.984083]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.984355]  kthread+0x328/0x630
[   15.984496]  ret_from_fork+0x10/0x20
[   15.984574] 
[   15.984646] The buggy address belongs to the object at fff00000c654e400
[   15.984646]  which belongs to the cache kmalloc-64 of size 64
[   15.984797] The buggy address is located 4 bytes inside of
[   15.984797]  allocated 64-byte region [fff00000c654e400, fff00000c654e440)
[   15.984910] 
[   15.985020] The buggy address belongs to the physical page:
[   15.985080] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10654e
[   15.985138] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   15.985186] page_type: f5(slab)
[   15.985532] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000
[   15.985705] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   15.985782] page dumped because: kasan: bad access detected
[   15.985854] 
[   15.985977] Memory state around the buggy address:
[   15.986035]  fff00000c654e300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc
[   15.986098]  fff00000c654e380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   15.986347] >fff00000c654e400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   15.986391]                                            ^
[   15.986425]  fff00000c654e480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.986805]  fff00000c654e500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.986997] ==================================================================
Metadata Full log Test run details 

[   16.745664] ==================================================================
[   16.745726] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0
[   16.745897] Read of size 64 at addr fff00000c5ab4c84 by task kunit_try_catch/183
[   16.746027] 
[   16.746062] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   16.746291] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.746323] Hardware name: linux,dummy-virt (DT)
[   16.746473] Call trace:
[   16.746510]  show_stack+0x20/0x38 (C)
[   16.746561]  dump_stack_lvl+0x8c/0xd0
[   16.746662]  print_report+0x118/0x5d0
[   16.746707]  kasan_report+0xdc/0x128
[   16.746752]  kasan_check_range+0x100/0x1a8
[   16.746818]  __asan_memmove+0x3c/0x98
[   16.746862]  kmalloc_memmove_invalid_size+0x154/0x2e0
[   16.746911]  kunit_try_run_case+0x170/0x3f0
[   16.746958]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.747009]  kthread+0x328/0x630
[   16.747225]  ret_from_fork+0x10/0x20
[   16.747291] 
[   16.747311] Allocated by task 183:
[   16.747459]  kasan_save_stack+0x3c/0x68
[   16.747678]  kasan_save_track+0x20/0x40
[   16.747879]  kasan_save_alloc_info+0x40/0x58
[   16.747998]  __kasan_kmalloc+0xd4/0xd8
[   16.748044]  __kmalloc_cache_noprof+0x16c/0x3c0
[   16.748082]  kmalloc_memmove_invalid_size+0xb0/0x2e0
[   16.748123]  kunit_try_run_case+0x170/0x3f0
[   16.748161]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.748369]  kthread+0x328/0x630
[   16.748458]  ret_from_fork+0x10/0x20
[   16.748606] 
[   16.748751] The buggy address belongs to the object at fff00000c5ab4c80
[   16.748751]  which belongs to the cache kmalloc-64 of size 64
[   16.748832] The buggy address is located 4 bytes inside of
[   16.748832]  allocated 64-byte region [fff00000c5ab4c80, fff00000c5ab4cc0)
[   16.748897] 
[   16.748917] The buggy address belongs to the physical page:
[   16.748949] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105ab4
[   16.749043] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.749170] page_type: f5(slab)
[   16.749242] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000
[   16.749358] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   16.749534] page dumped because: kasan: bad access detected
[   16.750724] 
[   16.750873] Memory state around the buggy address:
[   16.750914]  fff00000c5ab4b80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc
[   16.751532]  fff00000c5ab4c00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   16.753410] >fff00000c5ab4c80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   16.753932]                                            ^
[   16.753974]  fff00000c5ab4d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.754024]  fff00000c5ab4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.754064] ==================================================================
Metadata Full log Test run details 

[   12.844275] ==================================================================
[   12.844959] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330
[   12.845291] Read of size 64 at addr ffff88810342f784 by task kunit_try_catch/199
[   12.845664] 
[   12.845825] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   12.845871] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.845882] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.845901] Call Trace:
[   12.845914]  <TASK>
[   12.845929]  dump_stack_lvl+0x73/0xb0
[   12.845959]  print_report+0xd1/0x610
[   12.845981]  ? __virt_addr_valid+0x1db/0x2d0
[   12.846005]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   12.846030]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.846053]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   12.846078]  kasan_report+0x141/0x180
[   12.846100]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   12.846129]  kasan_check_range+0x10c/0x1c0
[   12.846153]  __asan_memmove+0x27/0x70
[   12.846172]  kmalloc_memmove_invalid_size+0x16f/0x330
[   12.846198]  ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10
[   12.846224]  ? __schedule+0x10cc/0x2b60
[   12.846246]  ? __pfx_read_tsc+0x10/0x10
[   12.846267]  ? ktime_get_ts64+0x86/0x230
[   12.846291]  kunit_try_run_case+0x1a5/0x480
[   12.846316]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.846339]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.846363]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.846387]  ? __kthread_parkme+0x82/0x180
[   12.846418]  ? preempt_count_sub+0x50/0x80
[   12.846442]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.846477]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.846501]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.846526]  kthread+0x337/0x6f0
[   12.846545]  ? trace_preempt_on+0x20/0xc0
[   12.846622]  ? __pfx_kthread+0x10/0x10
[   12.846644]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.846666]  ? calculate_sigpending+0x7b/0xa0
[   12.846691]  ? __pfx_kthread+0x10/0x10
[   12.846713]  ret_from_fork+0x116/0x1d0
[   12.846732]  ? __pfx_kthread+0x10/0x10
[   12.846752]  ret_from_fork_asm+0x1a/0x30
[   12.846783]  </TASK>
[   12.846793] 
[   12.856282] Allocated by task 199:
[   12.856418]  kasan_save_stack+0x45/0x70
[   12.856842]  kasan_save_track+0x18/0x40
[   12.857036]  kasan_save_alloc_info+0x3b/0x50
[   12.857240]  __kasan_kmalloc+0xb7/0xc0
[   12.857414]  __kmalloc_cache_noprof+0x189/0x420
[   12.858024]  kmalloc_memmove_invalid_size+0xac/0x330
[   12.858339]  kunit_try_run_case+0x1a5/0x480
[   12.858753]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.859102]  kthread+0x337/0x6f0
[   12.859373]  ret_from_fork+0x116/0x1d0
[   12.859573]  ret_from_fork_asm+0x1a/0x30
[   12.859916] 
[   12.860021] The buggy address belongs to the object at ffff88810342f780
[   12.860021]  which belongs to the cache kmalloc-64 of size 64
[   12.860538] The buggy address is located 4 bytes inside of
[   12.860538]  allocated 64-byte region [ffff88810342f780, ffff88810342f7c0)
[   12.861420] 
[   12.861525] The buggy address belongs to the physical page:
[   12.862027] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10342f
[   12.862501] flags: 0x200000000000000(node=0|zone=2)
[   12.862867] page_type: f5(slab)
[   12.863033] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000
[   12.863355] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   12.863940] page dumped because: kasan: bad access detected
[   12.864301] 
[   12.864377] Memory state around the buggy address:
[   12.864875]  ffff88810342f680: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   12.865138]  ffff88810342f700: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   12.865793] >ffff88810342f780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   12.866106]                                            ^
[   12.866400]  ffff88810342f800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.866937]  ffff88810342f880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.867308] ==================================================================
Metadata Full log Test run details 

[   13.070939] ==================================================================
[   13.071523] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330
[   13.071886] Read of size 64 at addr ffff88810259d504 by task kunit_try_catch/200
[   13.072439] 
[   13.072561] CPU: 0 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   13.072624] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.072639] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.072672] Call Trace:
[   13.072684]  <TASK>
[   13.072699]  dump_stack_lvl+0x73/0xb0
[   13.072734]  print_report+0xd1/0x610
[   13.072759]  ? __virt_addr_valid+0x1db/0x2d0
[   13.072787]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   13.072817]  ? kasan_complete_mode_report_info+0x2a/0x200
[   13.072845]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   13.072876]  kasan_report+0x141/0x180
[   13.072901]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   13.072935]  kasan_check_range+0x10c/0x1c0
[   13.072961]  __asan_memmove+0x27/0x70
[   13.072983]  kmalloc_memmove_invalid_size+0x16f/0x330
[   13.073013]  ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10
[   13.073044]  ? __schedule+0x10cc/0x2b60
[   13.073083]  ? __pfx_read_tsc+0x10/0x10
[   13.073108]  ? ktime_get_ts64+0x86/0x230
[   13.073157]  kunit_try_run_case+0x1a5/0x480
[   13.073185]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.073212]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.073240]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.073269]  ? __kthread_parkme+0x82/0x180
[   13.073293]  ? preempt_count_sub+0x50/0x80
[   13.073320]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.073348]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.073378]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.073409]  kthread+0x337/0x6f0
[   13.073430]  ? trace_preempt_on+0x20/0xc0
[   13.073457]  ? __pfx_kthread+0x10/0x10
[   13.073479]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.073504]  ? calculate_sigpending+0x7b/0xa0
[   13.073532]  ? __pfx_kthread+0x10/0x10
[   13.073555]  ret_from_fork+0x116/0x1d0
[   13.073577]  ? __pfx_kthread+0x10/0x10
[   13.073600]  ret_from_fork_asm+0x1a/0x30
[   13.073633]  </TASK>
[   13.073644] 
[   13.081211] Allocated by task 200:
[   13.081346]  kasan_save_stack+0x45/0x70
[   13.081522]  kasan_save_track+0x18/0x40
[   13.081933]  kasan_save_alloc_info+0x3b/0x50
[   13.082268]  __kasan_kmalloc+0xb7/0xc0
[   13.082464]  __kmalloc_cache_noprof+0x189/0x420
[   13.082754]  kmalloc_memmove_invalid_size+0xac/0x330
[   13.082966]  kunit_try_run_case+0x1a5/0x480
[   13.083186]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.083422]  kthread+0x337/0x6f0
[   13.083586]  ret_from_fork+0x116/0x1d0
[   13.083774]  ret_from_fork_asm+0x1a/0x30
[   13.083920] 
[   13.083992] The buggy address belongs to the object at ffff88810259d500
[   13.083992]  which belongs to the cache kmalloc-64 of size 64
[   13.084486] The buggy address is located 4 bytes inside of
[   13.084486]  allocated 64-byte region [ffff88810259d500, ffff88810259d540)
[   13.085162] 
[   13.085238] The buggy address belongs to the physical page:
[   13.085414] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10259d
[   13.085809] flags: 0x200000000000000(node=0|zone=2)
[   13.086070] page_type: f5(slab)
[   13.086242] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000
[   13.086760] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   13.087044] page dumped because: kasan: bad access detected
[   13.087372] 
[   13.087485] Memory state around the buggy address:
[   13.087837]  ffff88810259d400: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc
[   13.088234]  ffff88810259d480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   13.088462] >ffff88810259d500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   13.088783]                                            ^
[   13.089032]  ffff88810259d580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.089480]  ffff88810259d600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   13.089809] ==================================================================
Metadata Full log Test run details