Hay
Date
June 2, 2025, 2:11 p.m.

Environment
e850-96
qemu-arm64
qemu-x86_64

[   25.252973] ==================================================================
[   25.262512] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8
[   25.269713] Write of size 2 at addr ffff000801dd0077 by task kunit_try_catch/219
[   25.277089] 
[   25.278576] CPU: 6 UID: 0 PID: 219 Comm: kunit_try_catch Tainted: G    B            N  6.15.1-rc1 #1 PREEMPT 
[   25.278621] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.278635] Hardware name: WinLink E850-96 board (DT)
[   25.278652] Call trace:
[   25.278666]  show_stack+0x20/0x38 (C)
[   25.278698]  dump_stack_lvl+0x8c/0xd0
[   25.278731]  print_report+0x118/0x608
[   25.278761]  kasan_report+0xdc/0x128
[   25.278786]  kasan_check_range+0x100/0x1a8
[   25.278815]  __asan_memset+0x34/0x78
[   25.278843]  kmalloc_oob_memset_2+0x150/0x2f8
[   25.278877]  kunit_try_run_case+0x170/0x3f0
[   25.278914]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.278952]  kthread+0x328/0x630
[   25.278988]  ret_from_fork+0x10/0x20
[   25.279023] 
[   25.344451] Allocated by task 219:
[   25.347837]  kasan_save_stack+0x3c/0x68
[   25.351654]  kasan_save_track+0x20/0x40
[   25.355474]  kasan_save_alloc_info+0x40/0x58
[   25.359727]  __kasan_kmalloc+0xd4/0xd8
[   25.363459]  __kmalloc_cache_noprof+0x16c/0x3c0
[   25.367974]  kmalloc_oob_memset_2+0xb0/0x2f8
[   25.372228]  kunit_try_run_case+0x170/0x3f0
[   25.376395]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.381862]  kthread+0x328/0x630
[   25.385074]  ret_from_fork+0x10/0x20
[   25.388632] 
[   25.390110] The buggy address belongs to the object at ffff000801dd0000
[   25.390110]  which belongs to the cache kmalloc-128 of size 128
[   25.402610] The buggy address is located 119 bytes inside of
[   25.402610]  allocated 120-byte region [ffff000801dd0000, ffff000801dd0078)
[   25.415195] 
[   25.416673] The buggy address belongs to the physical page:
[   25.422231] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x881dd0
[   25.430215] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   25.437854] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   25.444797] page_type: f5(slab)
[   25.447933] raw: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   25.455652] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   25.463378] head: 0bfffe0000000040 ffff000800002a00 dead000000000122 0000000000000000
[   25.471190] head: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   25.479003] head: 0bfffe0000000001 fffffdffe0077401 00000000ffffffff 00000000ffffffff
[   25.486815] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   25.494620] page dumped because: kasan: bad access detected
[   25.500176] 
[   25.501652] Memory state around the buggy address:
[   25.506433]  ffff000801dcff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.513634]  ffff000801dcff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.520841] >ffff000801dd0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   25.528040]                                                                 ^
[   25.535162]  ffff000801dd0080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.542366]  ffff000801dd0100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   25.549569] ==================================================================

[   18.010531] ==================================================================
[   18.010620] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8
[   18.010696] Write of size 2 at addr fff00000c3f75477 by task kunit_try_catch/175
[   18.010745] 
[   18.010785] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G    B            N  6.15.1-rc1 #1 PREEMPT 
[   18.010870] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.010896] Hardware name: linux,dummy-virt (DT)
[   18.010928] Call trace:
[   18.010953]  show_stack+0x20/0x38 (C)
[   18.011004]  dump_stack_lvl+0x8c/0xd0
[   18.011060]  print_report+0x118/0x608
[   18.011104]  kasan_report+0xdc/0x128
[   18.011151]  kasan_check_range+0x100/0x1a8
[   18.011199]  __asan_memset+0x34/0x78
[   18.011243]  kmalloc_oob_memset_2+0x150/0x2f8
[   18.011292]  kunit_try_run_case+0x170/0x3f0
[   18.011342]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.011692]  kthread+0x328/0x630
[   18.011741]  ret_from_fork+0x10/0x20
[   18.011793] 
[   18.011812] Allocated by task 175:
[   18.013893]  kasan_save_stack+0x3c/0x68
[   18.013959]  kasan_save_track+0x20/0x40
[   18.013996]  kasan_save_alloc_info+0x40/0x58
[   18.014037]  __kasan_kmalloc+0xd4/0xd8
[   18.014122]  __kmalloc_cache_noprof+0x16c/0x3c0
[   18.014217]  kmalloc_oob_memset_2+0xb0/0x2f8
[   18.014286]  kunit_try_run_case+0x170/0x3f0
[   18.015100]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.015190]  kthread+0x328/0x630
[   18.015264]  ret_from_fork+0x10/0x20
[   18.015389] 
[   18.015446] The buggy address belongs to the object at fff00000c3f75400
[   18.015446]  which belongs to the cache kmalloc-128 of size 128
[   18.015538] The buggy address is located 119 bytes inside of
[   18.015538]  allocated 120-byte region [fff00000c3f75400, fff00000c3f75478)
[   18.017401] 
[   18.018257] The buggy address belongs to the physical page:
[   18.018987] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f75
[   18.022685] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.022811] page_type: f5(slab)
[   18.023327] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.023404] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.024379] page dumped because: kasan: bad access detected
[   18.024434] 
[   18.024453] Memory state around the buggy address:
[   18.025866]  fff00000c3f75300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.026065]  fff00000c3f75380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.026114] >fff00000c3f75400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.026151]                                                                 ^
[   18.027461]  fff00000c3f75480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.027530]  fff00000c3f75500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.027568] ==================================================================

[   16.603427] ==================================================================
[   16.604067] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330
[   16.604865] Write of size 2 at addr ffff888102b25e77 by task kunit_try_catch/193
[   16.605396] 
[   16.605565] CPU: 0 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G    B            N  6.15.1-rc1 #1 PREEMPT(voluntary) 
[   16.605859] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.605904] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.605957] Call Trace:
[   16.605992]  <TASK>
[   16.606032]  dump_stack_lvl+0x73/0xb0
[   16.606123]  print_report+0xd1/0x650
[   16.606176]  ? __virt_addr_valid+0x1db/0x2d0
[   16.606233]  ? kmalloc_oob_memset_2+0x166/0x330
[   16.606280]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.606324]  ? kmalloc_oob_memset_2+0x166/0x330
[   16.606366]  kasan_report+0x141/0x180
[   16.606407]  ? kmalloc_oob_memset_2+0x166/0x330
[   16.606463]  kasan_check_range+0x10c/0x1c0
[   16.606509]  __asan_memset+0x27/0x50
[   16.606557]  kmalloc_oob_memset_2+0x166/0x330
[   16.606609]  ? __pfx_kmalloc_oob_memset_2+0x10/0x10
[   16.606676]  ? __schedule+0x10cc/0x2b30
[   16.606714]  ? __pfx_read_tsc+0x10/0x10
[   16.606740]  ? ktime_get_ts64+0x86/0x230
[   16.606805]  kunit_try_run_case+0x1a5/0x480
[   16.606837]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.606861]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.606889]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.606915]  ? __kthread_parkme+0x82/0x180
[   16.606941]  ? preempt_count_sub+0x50/0x80
[   16.606970]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.606996]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.607022]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.607046]  kthread+0x337/0x6f0
[   16.607066]  ? trace_preempt_on+0x20/0xc0
[   16.607094]  ? __pfx_kthread+0x10/0x10
[   16.607141]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.607169]  ? calculate_sigpending+0x7b/0xa0
[   16.607195]  ? __pfx_kthread+0x10/0x10
[   16.607216]  ret_from_fork+0x41/0x80
[   16.607240]  ? __pfx_kthread+0x10/0x10
[   16.607260]  ret_from_fork_asm+0x1a/0x30
[   16.607297]  </TASK>
[   16.607312] 
[   16.616680] Allocated by task 193:
[   16.616974]  kasan_save_stack+0x45/0x70
[   16.617347]  kasan_save_track+0x18/0x40
[   16.617709]  kasan_save_alloc_info+0x3b/0x50
[   16.618079]  __kasan_kmalloc+0xb7/0xc0
[   16.618439]  __kmalloc_cache_noprof+0x189/0x420
[   16.618849]  kmalloc_oob_memset_2+0xac/0x330
[   16.619230]  kunit_try_run_case+0x1a5/0x480
[   16.619551]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.619932]  kthread+0x337/0x6f0
[   16.620136]  ret_from_fork+0x41/0x80
[   16.620472]  ret_from_fork_asm+0x1a/0x30
[   16.620832] 
[   16.621011] The buggy address belongs to the object at ffff888102b25e00
[   16.621011]  which belongs to the cache kmalloc-128 of size 128
[   16.621535] The buggy address is located 119 bytes inside of
[   16.621535]  allocated 120-byte region [ffff888102b25e00, ffff888102b25e78)
[   16.621994] 
[   16.622128] The buggy address belongs to the physical page:
[   16.622368] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b25
[   16.622927] flags: 0x200000000000000(node=0|zone=2)
[   16.623376] page_type: f5(slab)
[   16.623825] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   16.624531] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.625150] page dumped because: kasan: bad access detected
[   16.625587] 
[   16.625778] Memory state around the buggy address:
[   16.626195]  ffff888102b25d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.626593]  ffff888102b25d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.627003] >ffff888102b25e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.627688]                                                                 ^
[   16.628135]  ffff888102b25e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.628447]  ffff888102b25f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.628717] ==================================================================