Hay
Date
June 26, 2025, 11:12 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64

[   27.679827] ==================================================================
[   27.689237] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300
[   27.696440] Write of size 4 at addr ffff000801ed6575 by task kunit_try_catch/223
[   27.703816] 
[   27.705306] CPU: 7 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   27.705362] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.705378] Hardware name: WinLink E850-96 board (DT)
[   27.705398] Call trace:
[   27.705410]  show_stack+0x20/0x38 (C)
[   27.705447]  dump_stack_lvl+0x8c/0xd0
[   27.705487]  print_report+0x118/0x608
[   27.705517]  kasan_report+0xdc/0x128
[   27.705547]  kasan_check_range+0x100/0x1a8
[   27.705581]  __asan_memset+0x34/0x78
[   27.705611]  kmalloc_oob_memset_4+0x150/0x300
[   27.705643]  kunit_try_run_case+0x170/0x3f0
[   27.705683]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   27.705722]  kthread+0x328/0x630
[   27.705757]  ret_from_fork+0x10/0x20
[   27.705794] 
[   27.771176] Allocated by task 223:
[   27.774565]  kasan_save_stack+0x3c/0x68
[   27.778380]  kasan_save_track+0x20/0x40
[   27.782200]  kasan_save_alloc_info+0x40/0x58
[   27.786453]  __kasan_kmalloc+0xd4/0xd8
[   27.790187]  __kmalloc_cache_noprof+0x16c/0x3c0
[   27.794700]  kmalloc_oob_memset_4+0xb0/0x300
[   27.798953]  kunit_try_run_case+0x170/0x3f0
[   27.803121]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   27.808588]  kthread+0x328/0x630
[   27.811800]  ret_from_fork+0x10/0x20
[   27.815359] 
[   27.816837] The buggy address belongs to the object at ffff000801ed6500
[   27.816837]  which belongs to the cache kmalloc-128 of size 128
[   27.829337] The buggy address is located 117 bytes inside of
[   27.829337]  allocated 120-byte region [ffff000801ed6500, ffff000801ed6578)
[   27.841921] 
[   27.843402] The buggy address belongs to the physical page:
[   27.848955] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x881ed6
[   27.856940] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   27.864579] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   27.871524] page_type: f5(slab)
[   27.874662] raw: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   27.882379] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   27.890107] head: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   27.897917] head: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   27.905729] head: 0bfffe0000000001 fffffdffe007b581 00000000ffffffff 00000000ffffffff
[   27.913542] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   27.921347] page dumped because: kasan: bad access detected
[   27.926902] 
[   27.928378] Memory state around the buggy address:
[   27.933161]  ffff000801ed6400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.940361]  ffff000801ed6480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.947567] >ffff000801ed6500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   27.954767]                                                                 ^
[   27.961889]  ffff000801ed6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.969094]  ffff000801ed6600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.976296] ==================================================================

[   18.033963] ==================================================================
[   18.034057] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300
[   18.034155] Write of size 4 at addr fff00000c5bdc975 by task kunit_try_catch/176
[   18.034210] 
[   18.034257] CPU: 0 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   18.034447] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.034487] Hardware name: linux,dummy-virt (DT)
[   18.034517] Call trace:
[   18.034551]  show_stack+0x20/0x38 (C)
[   18.034600]  dump_stack_lvl+0x8c/0xd0
[   18.034698]  print_report+0x118/0x608
[   18.034753]  kasan_report+0xdc/0x128
[   18.034797]  kasan_check_range+0x100/0x1a8
[   18.034842]  __asan_memset+0x34/0x78
[   18.034954]  kmalloc_oob_memset_4+0x150/0x300
[   18.035030]  kunit_try_run_case+0x170/0x3f0
[   18.035100]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.035186]  kthread+0x328/0x630
[   18.035231]  ret_from_fork+0x10/0x20
[   18.035296] 
[   18.035342] Allocated by task 176:
[   18.035456]  kasan_save_stack+0x3c/0x68
[   18.035566]  kasan_save_track+0x20/0x40
[   18.035603]  kasan_save_alloc_info+0x40/0x58
[   18.035646]  __kasan_kmalloc+0xd4/0xd8
[   18.035687]  __kmalloc_cache_noprof+0x16c/0x3c0
[   18.035776]  kmalloc_oob_memset_4+0xb0/0x300
[   18.035842]  kunit_try_run_case+0x170/0x3f0
[   18.035922]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.036000]  kthread+0x328/0x630
[   18.036048]  ret_from_fork+0x10/0x20
[   18.036125] 
[   18.036144] The buggy address belongs to the object at fff00000c5bdc900
[   18.036144]  which belongs to the cache kmalloc-128 of size 128
[   18.036211] The buggy address is located 117 bytes inside of
[   18.036211]  allocated 120-byte region [fff00000c5bdc900, fff00000c5bdc978)
[   18.036274] 
[   18.036293] The buggy address belongs to the physical page:
[   18.036322] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105bdc
[   18.036639] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.036687] page_type: f5(slab)
[   18.036778] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.036956] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.037047] page dumped because: kasan: bad access detected
[   18.037105] 
[   18.037195] Memory state around the buggy address:
[   18.037303]  fff00000c5bdc800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.037347]  fff00000c5bdc880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.037585] >fff00000c5bdc900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.037769]                                                                 ^
[   18.037896]  fff00000c5bdc980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.037999]  fff00000c5bdca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.038106] ==================================================================

[   10.984783] ==================================================================
[   10.986175] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330
[   10.987678] Write of size 4 at addr ffff888102f60775 by task kunit_try_catch/193
[   10.988269] 
[   10.989048] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT(voluntary) 
[   10.989107] Tainted: [B]=BAD_PAGE, [N]=TEST
[   10.989120] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   10.989142] Call Trace:
[   10.989156]  <TASK>
[   10.989176]  dump_stack_lvl+0x73/0xb0
[   10.989205]  print_report+0xd1/0x650
[   10.989228]  ? __virt_addr_valid+0x1db/0x2d0
[   10.989252]  ? kmalloc_oob_memset_4+0x166/0x330
[   10.989274]  ? kasan_complete_mode_report_info+0x2a/0x200
[   10.989297]  ? kmalloc_oob_memset_4+0x166/0x330
[   10.989319]  kasan_report+0x141/0x180
[   10.989341]  ? kmalloc_oob_memset_4+0x166/0x330
[   10.989368]  kasan_check_range+0x10c/0x1c0
[   10.989387]  __asan_memset+0x27/0x50
[   10.989407]  kmalloc_oob_memset_4+0x166/0x330
[   10.989430]  ? __pfx_kmalloc_oob_memset_4+0x10/0x10
[   10.989452]  ? __schedule+0x10cc/0x2b60
[   10.989475]  ? __pfx_read_tsc+0x10/0x10
[   10.989496]  ? ktime_get_ts64+0x86/0x230
[   10.989521]  kunit_try_run_case+0x1a5/0x480
[   10.989546]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.989633]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   10.989657]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   10.989680]  ? __kthread_parkme+0x82/0x180
[   10.989701]  ? preempt_count_sub+0x50/0x80
[   10.989745]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.989769]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.989792]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   10.989815]  kthread+0x337/0x6f0
[   10.989831]  ? trace_preempt_on+0x20/0xc0
[   10.989855]  ? __pfx_kthread+0x10/0x10
[   10.989872]  ? _raw_spin_unlock_irq+0x47/0x80
[   10.989893]  ? calculate_sigpending+0x7b/0xa0
[   10.989914]  ? __pfx_kthread+0x10/0x10
[   10.989941]  ret_from_fork+0x41/0x80
[   10.989962]  ? __pfx_kthread+0x10/0x10
[   10.989979]  ret_from_fork_asm+0x1a/0x30
[   10.990011]  </TASK>
[   10.990023] 
[   11.006449] Allocated by task 193:
[   11.006644]  kasan_save_stack+0x45/0x70
[   11.007438]  kasan_save_track+0x18/0x40
[   11.008015]  kasan_save_alloc_info+0x3b/0x50
[   11.008466]  __kasan_kmalloc+0xb7/0xc0
[   11.008618]  __kmalloc_cache_noprof+0x189/0x420
[   11.009317]  kmalloc_oob_memset_4+0xac/0x330
[   11.009851]  kunit_try_run_case+0x1a5/0x480
[   11.010307]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.010488]  kthread+0x337/0x6f0
[   11.010740]  ret_from_fork+0x41/0x80
[   11.011152]  ret_from_fork_asm+0x1a/0x30
[   11.011582] 
[   11.011812] The buggy address belongs to the object at ffff888102f60700
[   11.011812]  which belongs to the cache kmalloc-128 of size 128
[   11.012554] The buggy address is located 117 bytes inside of
[   11.012554]  allocated 120-byte region [ffff888102f60700, ffff888102f60778)
[   11.013481] 
[   11.013677] The buggy address belongs to the physical page:
[   11.014322] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f60
[   11.015099] flags: 0x200000000000000(node=0|zone=2)
[   11.015265] page_type: f5(slab)
[   11.015387] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   11.015629] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   11.016463] page dumped because: kasan: bad access detected
[   11.017111] 
[   11.017301] Memory state around the buggy address:
[   11.017826]  ffff888102f60600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   11.018530]  ffff888102f60680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.019380] >ffff888102f60700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   11.019912]                                                                 ^
[   11.020345]  ffff888102f60780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.020556]  ffff888102f60800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.020959] ==================================================================