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

Environment
e850-96
qemu-arm64
qemu-x86_64

[   28.861701] ==================================================================
[   28.871684] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0
[   28.879583] Read of size 64 at addr ffff000800d61584 by task kunit_try_catch/231
[   28.886960] 
[   28.888447] CPU: 7 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   28.888504] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.888522] Hardware name: WinLink E850-96 board (DT)
[   28.888545] Call trace:
[   28.888559]  show_stack+0x20/0x38 (C)
[   28.888599]  dump_stack_lvl+0x8c/0xd0
[   28.888637]  print_report+0x118/0x608
[   28.888669]  kasan_report+0xdc/0x128
[   28.888698]  kasan_check_range+0x100/0x1a8
[   28.888732]  __asan_memmove+0x3c/0x98
[   28.888765]  kmalloc_memmove_invalid_size+0x154/0x2e0
[   28.888802]  kunit_try_run_case+0x170/0x3f0
[   28.888840]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.888880]  kthread+0x328/0x630
[   28.888916]  ret_from_fork+0x10/0x20
[   28.888949] 
[   28.955100] Allocated by task 231:
[   28.958489]  kasan_save_stack+0x3c/0x68
[   28.962304]  kasan_save_track+0x20/0x40
[   28.966123]  kasan_save_alloc_info+0x40/0x58
[   28.970377]  __kasan_kmalloc+0xd4/0xd8
[   28.974109]  __kmalloc_cache_noprof+0x16c/0x3c0
[   28.978623]  kmalloc_memmove_invalid_size+0xb0/0x2e0
[   28.983571]  kunit_try_run_case+0x170/0x3f0
[   28.987737]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.993206]  kthread+0x328/0x630
[   28.996418]  ret_from_fork+0x10/0x20
[   28.999977] 
[   29.001454] The buggy address belongs to the object at ffff000800d61580
[   29.001454]  which belongs to the cache kmalloc-64 of size 64
[   29.013782] The buggy address is located 4 bytes inside of
[   29.013782]  allocated 64-byte region [ffff000800d61580, ffff000800d615c0)
[   29.026105] 
[   29.027585] The buggy address belongs to the physical page:
[   29.033140] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x880d61
[   29.041124] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   29.047635] page_type: f5(slab)
[   29.050772] raw: 0bfffe0000000000 ffff0008000028c0 dead000000000122 0000000000000000
[   29.058490] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   29.066208] page dumped because: kasan: bad access detected
[   29.071765] 
[   29.073241] Memory state around the buggy address:
[   29.078020]  ffff000800d61480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   29.085223]  ffff000800d61500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   29.092428] >ffff000800d61580: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   29.099628]                                            ^
[   29.104927]  ffff000800d61600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.112132]  ffff000800d61680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.119333] ==================================================================

[   18.093784] ==================================================================
[   18.094137] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0
[   18.094366] Read of size 64 at addr fff00000c6759f84 by task kunit_try_catch/184
[   18.094419] 
[   18.094453] CPU: 0 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   18.094585] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.094612] Hardware name: linux,dummy-virt (DT)
[   18.094643] Call trace:
[   18.094907]  show_stack+0x20/0x38 (C)
[   18.095041]  dump_stack_lvl+0x8c/0xd0
[   18.095094]  print_report+0x118/0x608
[   18.095138]  kasan_report+0xdc/0x128
[   18.095274]  kasan_check_range+0x100/0x1a8
[   18.095361]  __asan_memmove+0x3c/0x98
[   18.095422]  kmalloc_memmove_invalid_size+0x154/0x2e0
[   18.095673]  kunit_try_run_case+0x170/0x3f0
[   18.095726]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.095840]  kthread+0x328/0x630
[   18.096494]  ret_from_fork+0x10/0x20
[   18.096581] 
[   18.096604] Allocated by task 184:
[   18.096947]  kasan_save_stack+0x3c/0x68
[   18.097024]  kasan_save_track+0x20/0x40
[   18.097090]  kasan_save_alloc_info+0x40/0x58
[   18.097289]  __kasan_kmalloc+0xd4/0xd8
[   18.097538]  __kmalloc_cache_noprof+0x16c/0x3c0
[   18.097610]  kmalloc_memmove_invalid_size+0xb0/0x2e0
[   18.098021]  kunit_try_run_case+0x170/0x3f0
[   18.098102]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.098190]  kthread+0x328/0x630
[   18.098409]  ret_from_fork+0x10/0x20
[   18.098492] 
[   18.098628] The buggy address belongs to the object at fff00000c6759f80
[   18.098628]  which belongs to the cache kmalloc-64 of size 64
[   18.098745] The buggy address is located 4 bytes inside of
[   18.098745]  allocated 64-byte region [fff00000c6759f80, fff00000c6759fc0)
[   18.099157] 
[   18.099211] The buggy address belongs to the physical page:
[   18.099395] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106759
[   18.099545] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.099658] page_type: f5(slab)
[   18.099706] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000
[   18.100092] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   18.100177] page dumped because: kasan: bad access detected
[   18.100342] 
[   18.100384] Memory state around the buggy address:
[   18.100435]  fff00000c6759e80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc
[   18.100536]  fff00000c6759f00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   18.100583] >fff00000c6759f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   18.100924]                                            ^
[   18.100990]  fff00000c675a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.101108]  fff00000c675a080: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.101196] ==================================================================

[   11.125956] ==================================================================
[   11.127437] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330
[   11.128493] Read of size 64 at addr ffff8881029fb004 by task kunit_try_catch/201
[   11.129644] 
[   11.129841] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT(voluntary) 
[   11.129895] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.129908] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.129943] Call Trace:
[   11.129958]  <TASK>
[   11.129980]  dump_stack_lvl+0x73/0xb0
[   11.130014]  print_report+0xd1/0x650
[   11.130039]  ? __virt_addr_valid+0x1db/0x2d0
[   11.130063]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   11.130084]  ? kasan_complete_mode_report_info+0x2a/0x200
[   11.130113]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   11.130134]  kasan_report+0x141/0x180
[   11.130156]  ? kmalloc_memmove_invalid_size+0x16f/0x330
[   11.130351]  kasan_check_range+0x10c/0x1c0
[   11.130380]  __asan_memmove+0x27/0x70
[   11.130401]  kmalloc_memmove_invalid_size+0x16f/0x330
[   11.130422]  ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10
[   11.130443]  ? __schedule+0x10cc/0x2b60
[   11.130468]  ? __pfx_read_tsc+0x10/0x10
[   11.130489]  ? ktime_get_ts64+0x86/0x230
[   11.130516]  kunit_try_run_case+0x1a5/0x480
[   11.130543]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.130564]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.130589]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.130611]  ? __kthread_parkme+0x82/0x180
[   11.130634]  ? preempt_count_sub+0x50/0x80
[   11.130660]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.130685]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.130708]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.130730]  kthread+0x337/0x6f0
[   11.130747]  ? trace_preempt_on+0x20/0xc0
[   11.130771]  ? __pfx_kthread+0x10/0x10
[   11.130789]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.130810]  ? calculate_sigpending+0x7b/0xa0
[   11.130832]  ? __pfx_kthread+0x10/0x10
[   11.130849]  ret_from_fork+0x41/0x80
[   11.130870]  ? __pfx_kthread+0x10/0x10
[   11.130887]  ret_from_fork_asm+0x1a/0x30
[   11.130929]  </TASK>
[   11.130942] 
[   11.142744] Allocated by task 201:
[   11.143077]  kasan_save_stack+0x45/0x70
[   11.143458]  kasan_save_track+0x18/0x40
[   11.143824]  kasan_save_alloc_info+0x3b/0x50
[   11.144042]  __kasan_kmalloc+0xb7/0xc0
[   11.144221]  __kmalloc_cache_noprof+0x189/0x420
[   11.144439]  kmalloc_memmove_invalid_size+0xac/0x330
[   11.145056]  kunit_try_run_case+0x1a5/0x480
[   11.145374]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.145963]  kthread+0x337/0x6f0
[   11.146153]  ret_from_fork+0x41/0x80
[   11.146322]  ret_from_fork_asm+0x1a/0x30
[   11.146497] 
[   11.146869] The buggy address belongs to the object at ffff8881029fb000
[   11.146869]  which belongs to the cache kmalloc-64 of size 64
[   11.147602] The buggy address is located 4 bytes inside of
[   11.147602]  allocated 64-byte region [ffff8881029fb000, ffff8881029fb040)
[   11.148188] 
[   11.148291] The buggy address belongs to the physical page:
[   11.148525] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029fb
[   11.149316] flags: 0x200000000000000(node=0|zone=2)
[   11.149851] page_type: f5(slab)
[   11.150161] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000
[   11.150706] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   11.151323] page dumped because: kasan: bad access detected
[   11.151568] 
[   11.151656] Memory state around the buggy address:
[   11.152261]  ffff8881029faf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.152570]  ffff8881029faf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.152911] >ffff8881029fb000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[   11.153194]                                            ^
[   11.153419]  ffff8881029fb080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.154259]  ffff8881029fb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.154683] ==================================================================