Hay
Date
July 20, 2025, 11:12 p.m.

Environment
qemu-arm64
qemu-x86_64

[   16.637622] ==================================================================
[   16.637683] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   16.638085] Write of size 8 at addr fff00000c3edd771 by task kunit_try_catch/176
[   16.638273] 
[   16.638485] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT 
[   16.638950] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.638997] Hardware name: linux,dummy-virt (DT)
[   16.639029] Call trace:
[   16.639070]  show_stack+0x20/0x38 (C)
[   16.639124]  dump_stack_lvl+0x8c/0xd0
[   16.639170]  print_report+0x118/0x5d0
[   16.639217]  kasan_report+0xdc/0x128
[   16.639278]  kasan_check_range+0x100/0x1a8
[   16.639326]  __asan_memset+0x34/0x78
[   16.639370]  kmalloc_oob_memset_8+0x150/0x2f8
[   16.639429]  kunit_try_run_case+0x170/0x3f0
[   16.639486]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.639538]  kthread+0x328/0x630
[   16.639588]  ret_from_fork+0x10/0x20
[   16.639643] 
[   16.639662] Allocated by task 176:
[   16.639701]  kasan_save_stack+0x3c/0x68
[   16.639743]  kasan_save_track+0x20/0x40
[   16.639787]  kasan_save_alloc_info+0x40/0x58
[   16.639838]  __kasan_kmalloc+0xd4/0xd8
[   16.639877]  __kmalloc_cache_noprof+0x16c/0x3c0
[   16.639929]  kmalloc_oob_memset_8+0xb0/0x2f8
[   16.639966]  kunit_try_run_case+0x170/0x3f0
[   16.640003]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.640062]  kthread+0x328/0x630
[   16.640094]  ret_from_fork+0x10/0x20
[   16.640147] 
[   16.640167] The buggy address belongs to the object at fff00000c3edd700
[   16.640167]  which belongs to the cache kmalloc-128 of size 128
[   16.640223] The buggy address is located 113 bytes inside of
[   16.640223]  allocated 120-byte region [fff00000c3edd700, fff00000c3edd778)
[   16.640284] 
[   16.640314] The buggy address belongs to the physical page:
[   16.640353] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103edd
[   16.640405] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.640453] page_type: f5(slab)
[   16.640492] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   16.640542] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.640582] page dumped because: kasan: bad access detected
[   16.640614] 
[   16.640632] Memory state around the buggy address:
[   16.640672]  fff00000c3edd600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.640714]  fff00000c3edd680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.640756] >fff00000c3edd700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.640792]                                                                 ^
[   16.640830]  fff00000c3edd780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.640882]  fff00000c3edd800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.641201] ==================================================================

[   16.620419] ==================================================================
[   16.620907] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   16.621004] Write of size 8 at addr fff00000c58dcb71 by task kunit_try_catch/176
[   16.621062] 
[   16.621099] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT 
[   16.621386] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.621524] Hardware name: linux,dummy-virt (DT)
[   16.621914] Call trace:
[   16.622106]  show_stack+0x20/0x38 (C)
[   16.622230]  dump_stack_lvl+0x8c/0xd0
[   16.622396]  print_report+0x118/0x5d0
[   16.622493]  kasan_report+0xdc/0x128
[   16.622543]  kasan_check_range+0x100/0x1a8
[   16.622597]  __asan_memset+0x34/0x78
[   16.622653]  kmalloc_oob_memset_8+0x150/0x2f8
[   16.622700]  kunit_try_run_case+0x170/0x3f0
[   16.622749]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.622801]  kthread+0x328/0x630
[   16.622848]  ret_from_fork+0x10/0x20
[   16.622898] 
[   16.622918] Allocated by task 176:
[   16.622946]  kasan_save_stack+0x3c/0x68
[   16.623005]  kasan_save_track+0x20/0x40
[   16.623058]  kasan_save_alloc_info+0x40/0x58
[   16.623105]  __kasan_kmalloc+0xd4/0xd8
[   16.623141]  __kmalloc_cache_noprof+0x16c/0x3c0
[   16.623189]  kmalloc_oob_memset_8+0xb0/0x2f8
[   16.623226]  kunit_try_run_case+0x170/0x3f0
[   16.623263]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.623321]  kthread+0x328/0x630
[   16.623353]  ret_from_fork+0x10/0x20
[   16.623397] 
[   16.623416] The buggy address belongs to the object at fff00000c58dcb00
[   16.623416]  which belongs to the cache kmalloc-128 of size 128
[   16.623487] The buggy address is located 113 bytes inside of
[   16.623487]  allocated 120-byte region [fff00000c58dcb00, fff00000c58dcb78)
[   16.623549] 
[   16.623579] The buggy address belongs to the physical page:
[   16.623611] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058dc
[   16.623689] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.623738] page_type: f5(slab)
[   16.623778] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   16.623828] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.623886] page dumped because: kasan: bad access detected
[   16.623935] 
[   16.623953] Memory state around the buggy address:
[   16.623990]  fff00000c58dca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.624038]  fff00000c58dca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.624107] >fff00000c58dcb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.624143]                                                                 ^
[   16.624184]  fff00000c58dcb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.624225]  fff00000c58dcc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.624278] ==================================================================

[   12.782095] ==================================================================
[   12.782593] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330
[   12.782901] Write of size 8 at addr ffff888101bc1571 by task kunit_try_catch/194
[   12.783416] 
[   12.783516] CPU: 1 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT(voluntary) 
[   12.783560] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.783572] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.783593] Call Trace:
[   12.783605]  <TASK>
[   12.783622]  dump_stack_lvl+0x73/0xb0
[   12.783652]  print_report+0xd1/0x610
[   12.783675]  ? __virt_addr_valid+0x1db/0x2d0
[   12.783699]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.783720]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.783742]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.783764]  kasan_report+0x141/0x180
[   12.783786]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.783814]  kasan_check_range+0x10c/0x1c0
[   12.783837]  __asan_memset+0x27/0x50
[   12.783856]  kmalloc_oob_memset_8+0x166/0x330
[   12.783879]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   12.783901]  ? __schedule+0x10c6/0x2b60
[   12.783924]  ? __pfx_read_tsc+0x10/0x10
[   12.783944]  ? ktime_get_ts64+0x86/0x230
[   12.783971]  kunit_try_run_case+0x1a5/0x480
[   12.783995]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.784017]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.784040]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.784063]  ? __kthread_parkme+0x82/0x180
[   12.784258]  ? preempt_count_sub+0x50/0x80
[   12.784284]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.784308]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.784332]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.784356]  kthread+0x337/0x6f0
[   12.784375]  ? trace_preempt_on+0x20/0xc0
[   12.784413]  ? __pfx_kthread+0x10/0x10
[   12.784434]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.784456]  ? calculate_sigpending+0x7b/0xa0
[   12.784480]  ? __pfx_kthread+0x10/0x10
[   12.784501]  ret_from_fork+0x116/0x1d0
[   12.784520]  ? __pfx_kthread+0x10/0x10
[   12.784540]  ret_from_fork_asm+0x1a/0x30
[   12.784574]  </TASK>
[   12.784584] 
[   12.792271] Allocated by task 194:
[   12.792466]  kasan_save_stack+0x45/0x70
[   12.792752]  kasan_save_track+0x18/0x40
[   12.792923]  kasan_save_alloc_info+0x3b/0x50
[   12.793074]  __kasan_kmalloc+0xb7/0xc0
[   12.793213]  __kmalloc_cache_noprof+0x189/0x420
[   12.793448]  kmalloc_oob_memset_8+0xac/0x330
[   12.793795]  kunit_try_run_case+0x1a5/0x480
[   12.794307]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.794566]  kthread+0x337/0x6f0
[   12.794742]  ret_from_fork+0x116/0x1d0
[   12.794907]  ret_from_fork_asm+0x1a/0x30
[   12.795158] 
[   12.795253] The buggy address belongs to the object at ffff888101bc1500
[   12.795253]  which belongs to the cache kmalloc-128 of size 128
[   12.795821] The buggy address is located 113 bytes inside of
[   12.795821]  allocated 120-byte region [ffff888101bc1500, ffff888101bc1578)
[   12.796430] 
[   12.796541] The buggy address belongs to the physical page:
[   12.796759] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101bc1
[   12.796996] flags: 0x200000000000000(node=0|zone=2)
[   12.797189] page_type: f5(slab)
[   12.797361] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   12.797710] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   12.798041] page dumped because: kasan: bad access detected
[   12.798282] 
[   12.798587] Memory state around the buggy address:
[   12.798773]  ffff888101bc1400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   12.798986]  ffff888101bc1480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.799749] >ffff888101bc1500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   12.800013]                                                                 ^
[   12.800390]  ffff888101bc1580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.800745]  ffff888101bc1600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.801058] ==================================================================

[   12.908502] ==================================================================
[   12.908895] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330
[   12.909131] Write of size 8 at addr ffff8881027a1b71 by task kunit_try_catch/193
[   12.909790] 
[   12.910358] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc7 #1 PREEMPT(voluntary) 
[   12.910445] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.910461] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.910483] Call Trace:
[   12.910496]  <TASK>
[   12.910513]  dump_stack_lvl+0x73/0xb0
[   12.910547]  print_report+0xd1/0x610
[   12.910569]  ? __virt_addr_valid+0x1db/0x2d0
[   12.910592]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.910614]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.910635]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.910656]  kasan_report+0x141/0x180
[   12.910677]  ? kmalloc_oob_memset_8+0x166/0x330
[   12.910703]  kasan_check_range+0x10c/0x1c0
[   12.910725]  __asan_memset+0x27/0x50
[   12.910744]  kmalloc_oob_memset_8+0x166/0x330
[   12.910765]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   12.910787]  ? __schedule+0x10c6/0x2b60
[   12.910809]  ? __pfx_read_tsc+0x10/0x10
[   12.910830]  ? ktime_get_ts64+0x86/0x230
[   12.910854]  kunit_try_run_case+0x1a5/0x480
[   12.910878]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.910900]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.910923]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.910945]  ? __kthread_parkme+0x82/0x180
[   12.910966]  ? preempt_count_sub+0x50/0x80
[   12.911065]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.911089]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.911124]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.911164]  kthread+0x337/0x6f0
[   12.911183]  ? trace_preempt_on+0x20/0xc0
[   12.911207]  ? __pfx_kthread+0x10/0x10
[   12.911228]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.911260]  ? calculate_sigpending+0x7b/0xa0
[   12.911284]  ? __pfx_kthread+0x10/0x10
[   12.911305]  ret_from_fork+0x116/0x1d0
[   12.911323]  ? __pfx_kthread+0x10/0x10
[   12.911343]  ret_from_fork_asm+0x1a/0x30
[   12.911372]  </TASK>
[   12.911383] 
[   12.922106] Allocated by task 193:
[   12.922493]  kasan_save_stack+0x45/0x70
[   12.922679]  kasan_save_track+0x18/0x40
[   12.922837]  kasan_save_alloc_info+0x3b/0x50
[   12.923315]  __kasan_kmalloc+0xb7/0xc0
[   12.923516]  __kmalloc_cache_noprof+0x189/0x420
[   12.923758]  kmalloc_oob_memset_8+0xac/0x330
[   12.924311]  kunit_try_run_case+0x1a5/0x480
[   12.924491]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.925002]  kthread+0x337/0x6f0
[   12.925179]  ret_from_fork+0x116/0x1d0
[   12.925603]  ret_from_fork_asm+0x1a/0x30
[   12.925898] 
[   12.926201] The buggy address belongs to the object at ffff8881027a1b00
[   12.926201]  which belongs to the cache kmalloc-128 of size 128
[   12.926801] The buggy address is located 113 bytes inside of
[   12.926801]  allocated 120-byte region [ffff8881027a1b00, ffff8881027a1b78)
[   12.927793] 
[   12.927896] The buggy address belongs to the physical page:
[   12.928135] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027a1
[   12.928545] flags: 0x200000000000000(node=0|zone=2)
[   12.928849] page_type: f5(slab)
[   12.929049] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   12.929441] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   12.930010] page dumped because: kasan: bad access detected
[   12.930303] 
[   12.930402] Memory state around the buggy address:
[   12.930683]  ffff8881027a1a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   12.930959]  ffff8881027a1a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.931445] >ffff8881027a1b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   12.931770]                                                                 ^
[   12.932218]  ffff8881027a1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.932623]  ffff8881027a1c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.932917] ==================================================================