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

Environment
e850-96
qemu-arm64
qemu-x86_64

[   45.096505] ==================================================================
[   45.105973] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   45.113176] Write of size 8 at addr ffff0008019acb71 by task kunit_try_catch/260
[   45.120550] 
[   45.122036] CPU: 3 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   45.122091] Tainted: [B]=BAD_PAGE, [N]=TEST
[   45.122107] Hardware name: WinLink E850-96 board (DT)
[   45.122130] Call trace:
[   45.122144]  show_stack+0x20/0x38 (C)
[   45.122176]  dump_stack_lvl+0x8c/0xd0
[   45.122209]  print_report+0x118/0x5d0
[   45.122238]  kasan_report+0xdc/0x128
[   45.122264]  kasan_check_range+0x100/0x1a8
[   45.122293]  __asan_memset+0x34/0x78
[   45.122322]  kmalloc_oob_memset_8+0x150/0x2f8
[   45.122354]  kunit_try_run_case+0x170/0x3f0
[   45.122391]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   45.122423]  kthread+0x328/0x630
[   45.122453]  ret_from_fork+0x10/0x20
[   45.122489] 
[   45.189126] Allocated by task 260:
[   45.192513]  kasan_save_stack+0x3c/0x68
[   45.196330]  kasan_save_track+0x20/0x40
[   45.200150]  kasan_save_alloc_info+0x40/0x58
[   45.204402]  __kasan_kmalloc+0xd4/0xd8
[   45.208134]  __kmalloc_cache_noprof+0x16c/0x3c0
[   45.212648]  kmalloc_oob_memset_8+0xb0/0x2f8
[   45.216901]  kunit_try_run_case+0x170/0x3f0
[   45.221068]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   45.226537]  kthread+0x328/0x630
[   45.229749]  ret_from_fork+0x10/0x20
[   45.233308] 
[   45.234785] The buggy address belongs to the object at ffff0008019acb00
[   45.234785]  which belongs to the cache kmalloc-128 of size 128
[   45.247287] The buggy address is located 113 bytes inside of
[   45.247287]  allocated 120-byte region [ffff0008019acb00, ffff0008019acb78)
[   45.259870] 
[   45.261350] The buggy address belongs to the physical page:
[   45.266906] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8819ac
[   45.274889] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   45.282530] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   45.289471] page_type: f5(slab)
[   45.292609] raw: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   45.300327] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   45.308054] head: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   45.315865] head: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   45.323678] head: 0bfffe0000000001 fffffdffe0066b01 00000000ffffffff 00000000ffffffff
[   45.331490] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   45.339296] page dumped because: kasan: bad access detected
[   45.344851] 
[   45.346326] Memory state around the buggy address:
[   45.351108]  ffff0008019aca00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   45.358310]  ffff0008019aca80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   45.365516] >ffff0008019acb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   45.372715]                                                                 ^
[   45.379837]  ffff0008019acb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   45.387043]  ffff0008019acc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   45.394244] ==================================================================

[   30.419916] ==================================================================
[   30.420165] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   30.420332] Write of size 8 at addr fff00000c91b3a71 by task kunit_try_catch/207
[   30.420382] 
[   30.420418] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT 
[   30.420502] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.420527] Hardware name: linux,dummy-virt (DT)
[   30.420557] Call trace:
[   30.420579]  show_stack+0x20/0x38 (C)
[   30.420626]  dump_stack_lvl+0x8c/0xd0
[   30.420670]  print_report+0x118/0x5d0
[   30.421138]  kasan_report+0xdc/0x128
[   30.421541]  kasan_check_range+0x100/0x1a8
[   30.421695]  __asan_memset+0x34/0x78
[   30.421738]  kmalloc_oob_memset_8+0x150/0x2f8
[   30.421784]  kunit_try_run_case+0x170/0x3f0
[   30.421832]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.421880]  kthread+0x328/0x630
[   30.421922]  ret_from_fork+0x10/0x20
[   30.421969] 
[   30.421986] Allocated by task 207:
[   30.422536]  kasan_save_stack+0x3c/0x68
[   30.422589]  kasan_save_track+0x20/0x40
[   30.422954]  kasan_save_alloc_info+0x40/0x58
[   30.422992]  __kasan_kmalloc+0xd4/0xd8
[   30.423033]  __kmalloc_cache_noprof+0x16c/0x3c0
[   30.423077]  kmalloc_oob_memset_8+0xb0/0x2f8
[   30.423115]  kunit_try_run_case+0x170/0x3f0
[   30.423154]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.423205]  kthread+0x328/0x630
[   30.423238]  ret_from_fork+0x10/0x20
[   30.423272] 
[   30.423610] The buggy address belongs to the object at fff00000c91b3a00
[   30.423610]  which belongs to the cache kmalloc-128 of size 128
[   30.423669] The buggy address is located 113 bytes inside of
[   30.423669]  allocated 120-byte region [fff00000c91b3a00, fff00000c91b3a78)
[   30.423731] 
[   30.423754] The buggy address belongs to the physical page:
[   30.424116] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1091b3
[   30.424205] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   30.424257] page_type: f5(slab)
[   30.424299] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   30.424632] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   30.424829] page dumped because: kasan: bad access detected
[   30.424863] 
[   30.424911] Memory state around the buggy address:
[   30.424945]  fff00000c91b3900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   30.425031]  fff00000c91b3980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.425193] >fff00000c91b3a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   30.425229]                                                                 ^
[   30.425267]  fff00000c91b3a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.425345]  fff00000c91b3b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.425407] ==================================================================

[   23.888017] ==================================================================
[   23.888643] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330
[   23.888983] Write of size 8 at addr ffff888104cac371 by task kunit_try_catch/226
[   23.889265] 
[   23.889489] CPU: 0 UID: 0 PID: 226 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) 
[   23.889543] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.889554] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.889577] Call Trace:
[   23.889590]  <TASK>
[   23.889607]  dump_stack_lvl+0x73/0xb0
[   23.889640]  print_report+0xd1/0x610
[   23.889662]  ? __virt_addr_valid+0x1db/0x2d0
[   23.889688]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.889709]  ? kasan_complete_mode_report_info+0x2a/0x200
[   23.889749]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.889770]  kasan_report+0x141/0x180
[   23.889792]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.889817]  kasan_check_range+0x10c/0x1c0
[   23.889839]  __asan_memset+0x27/0x50
[   23.889862]  kmalloc_oob_memset_8+0x166/0x330
[   23.889884]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   23.889906]  ? __schedule+0x10cc/0x2b60
[   23.889930]  ? __pfx_read_tsc+0x10/0x10
[   23.889952]  ? ktime_get_ts64+0x86/0x230
[   23.889978]  kunit_try_run_case+0x1a5/0x480
[   23.890001]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.890021]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.890044]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.890067]  ? __kthread_parkme+0x82/0x180
[   23.890088]  ? preempt_count_sub+0x50/0x80
[   23.890112]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.890133]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.890158]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.890182]  kthread+0x337/0x6f0
[   23.890202]  ? trace_preempt_on+0x20/0xc0
[   23.890226]  ? __pfx_kthread+0x10/0x10
[   23.890246]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.890310]  ? calculate_sigpending+0x7b/0xa0
[   23.890340]  ? __pfx_kthread+0x10/0x10
[   23.890361]  ret_from_fork+0x116/0x1d0
[   23.890381]  ? __pfx_kthread+0x10/0x10
[   23.890402]  ret_from_fork_asm+0x1a/0x30
[   23.890445]  </TASK>
[   23.890456] 
[   23.899965] Allocated by task 226:
[   23.900161]  kasan_save_stack+0x45/0x70
[   23.900703]  kasan_save_track+0x18/0x40
[   23.900920]  kasan_save_alloc_info+0x3b/0x50
[   23.901117]  __kasan_kmalloc+0xb7/0xc0
[   23.901566]  __kmalloc_cache_noprof+0x189/0x420
[   23.901935]  kmalloc_oob_memset_8+0xac/0x330
[   23.902337]  kunit_try_run_case+0x1a5/0x480
[   23.902883]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.903203]  kthread+0x337/0x6f0
[   23.903553]  ret_from_fork+0x116/0x1d0
[   23.903761]  ret_from_fork_asm+0x1a/0x30
[   23.903938] 
[   23.904023] The buggy address belongs to the object at ffff888104cac300
[   23.904023]  which belongs to the cache kmalloc-128 of size 128
[   23.905252] The buggy address is located 113 bytes inside of
[   23.905252]  allocated 120-byte region [ffff888104cac300, ffff888104cac378)
[   23.905923] 
[   23.906006] The buggy address belongs to the physical page:
[   23.906173] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104cac
[   23.906410] flags: 0x200000000000000(node=0|zone=2)
[   23.906566] page_type: f5(slab)
[   23.906679] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   23.906911] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.907122] page dumped because: kasan: bad access detected
[   23.907282] 
[   23.907345] Memory state around the buggy address:
[   23.907489]  ffff888104cac200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.908112]  ffff888104cac280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.908743] >ffff888104cac300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   23.908953]                                                                 ^
[   23.909181]  ffff888104cac380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.909982]  ffff888104cac400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.910793] ==================================================================