Hay
Date
April 22, 2025, 11:09 a.m.

Environment
qemu-arm64
qemu-x86_64
rk3399-rock-pi-4b

[   17.323588] ==================================================================
[   17.323715] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   17.323780] Write of size 1 at addr fff00000c6bedf00 by task kunit_try_catch/146
[   17.323828] 
[   17.323867] CPU: 1 UID: 0 PID: 146 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   17.323946] Tainted: [B]=BAD_PAGE, [N]=TEST
[   17.323971] Hardware name: linux,dummy-virt (DT)
[   17.324001] Call trace:
[   17.324025]  show_stack+0x20/0x38 (C)
[   17.324073]  dump_stack_lvl+0x8c/0xd0
[   17.324116]  print_report+0x118/0x608
[   17.324157]  kasan_report+0xdc/0x128
[   17.324197]  __asan_report_store1_noabort+0x20/0x30
[   17.324243]  kmalloc_big_oob_right+0x2a4/0x2f0
[   17.324288]  kunit_try_run_case+0x170/0x3f0
[   17.324332]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.324380]  kthread+0x328/0x630
[   17.324423]  ret_from_fork+0x10/0x20
[   17.324468] 
[   17.324486] Allocated by task 146:
[   17.324513]  kasan_save_stack+0x3c/0x68
[   17.324634]  kasan_save_track+0x20/0x40
[   17.324703]  kasan_save_alloc_info+0x40/0x58
[   17.324765]  __kasan_kmalloc+0xd4/0xd8
[   17.324861]  __kmalloc_cache_noprof+0x15c/0x3c0
[   17.324956]  kmalloc_big_oob_right+0xb8/0x2f0
[   17.325035]  kunit_try_run_case+0x170/0x3f0
[   17.325113]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.325296]  kthread+0x328/0x630
[   17.325379]  ret_from_fork+0x10/0x20
[   17.325449] 
[   17.325522] The buggy address belongs to the object at fff00000c6bec000
[   17.325522]  which belongs to the cache kmalloc-8k of size 8192
[   17.325724] The buggy address is located 0 bytes to the right of
[   17.325724]  allocated 7936-byte region [fff00000c6bec000, fff00000c6bedf00)
[   17.325867] 
[   17.325923] The buggy address belongs to the physical page:
[   17.326011] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106be8
[   17.326118] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   17.326218] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   17.326352] page_type: f5(slab)
[   17.326450] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   17.326572] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   17.326691] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000
[   17.326838] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   17.326969] head: 0bfffe0000000003 ffffc1ffc31afa01 00000000ffffffff 00000000ffffffff
[   17.327093] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   17.327217] page dumped because: kasan: bad access detected
[   17.327297] 
[   17.327329] Memory state around the buggy address:
[   17.327393]  fff00000c6bede00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.327904]  fff00000c6bede80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.328008] >fff00000c6bedf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   17.328092]                    ^
[   17.328152]  fff00000c6bedf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   17.328242]  fff00000c6bee000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   17.328317] ==================================================================

[   16.897193] ==================================================================
[   16.898158] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370
[   16.899780] Write of size 1 at addr ffff888102db1f00 by task kunit_try_catch/164
[   16.900680] 
[   16.900846] CPU: 1 UID: 0 PID: 164 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   16.900914] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.900931] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.900960] Call Trace:
[   16.900982]  <TASK>
[   16.901008]  dump_stack_lvl+0x73/0xb0
[   16.901049]  print_report+0xd1/0x650
[   16.901082]  ? __virt_addr_valid+0x1db/0x2d0
[   16.901113]  ? kmalloc_big_oob_right+0x316/0x370
[   16.901143]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.901173]  ? kmalloc_big_oob_right+0x316/0x370
[   16.901204]  kasan_report+0x141/0x180
[   16.901234]  ? kmalloc_big_oob_right+0x316/0x370
[   16.901271]  __asan_report_store1_noabort+0x1b/0x30
[   16.901298]  kmalloc_big_oob_right+0x316/0x370
[   16.901332]  ? __pfx_kmalloc_big_oob_right+0x10/0x10
[   16.901365]  ? __schedule+0x10cc/0x2b30
[   16.901398]  ? __pfx_read_tsc+0x10/0x10
[   16.901425]  ? ktime_get_ts64+0x86/0x230
[   16.901522]  kunit_try_run_case+0x1a5/0x480
[   16.901620]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.901708]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.901816]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.901894]  ? __kthread_parkme+0x82/0x180
[   16.901972]  ? preempt_count_sub+0x50/0x80
[   16.902038]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.902097]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.902157]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.902213]  kthread+0x337/0x6f0
[   16.902271]  ? trace_preempt_on+0x20/0xc0
[   16.902333]  ? __pfx_kthread+0x10/0x10
[   16.902388]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.902450]  ? calculate_sigpending+0x7b/0xa0
[   16.902535]  ? __pfx_kthread+0x10/0x10
[   16.902610]  ret_from_fork+0x41/0x80
[   16.902680]  ? __pfx_kthread+0x10/0x10
[   16.902776]  ret_from_fork_asm+0x1a/0x30
[   16.902907]  </TASK>
[   16.902942] 
[   16.921925] Allocated by task 164:
[   16.922259]  kasan_save_stack+0x45/0x70
[   16.923385]  kasan_save_track+0x18/0x40
[   16.924166]  kasan_save_alloc_info+0x3b/0x50
[   16.924838]  __kasan_kmalloc+0xb7/0xc0
[   16.925351]  __kmalloc_cache_noprof+0x189/0x420
[   16.926075]  kmalloc_big_oob_right+0xa9/0x370
[   16.926856]  kunit_try_run_case+0x1a5/0x480
[   16.927144]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.928327]  kthread+0x337/0x6f0
[   16.928714]  ret_from_fork+0x41/0x80
[   16.929199]  ret_from_fork_asm+0x1a/0x30
[   16.929660] 
[   16.929887] The buggy address belongs to the object at ffff888102db0000
[   16.929887]  which belongs to the cache kmalloc-8k of size 8192
[   16.930778] The buggy address is located 0 bytes to the right of
[   16.930778]  allocated 7936-byte region [ffff888102db0000, ffff888102db1f00)
[   16.931810] 
[   16.932395] The buggy address belongs to the physical page:
[   16.932959] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102db0
[   16.935121] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   16.935841] flags: 0x200000000000040(head|node=0|zone=2)
[   16.936716] page_type: f5(slab)
[   16.937038] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   16.938220] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   16.938949] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000
[   16.939714] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   16.940880] head: 0200000000000003 ffffea00040b6c01 00000000ffffffff 00000000ffffffff
[   16.941422] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   16.942363] page dumped because: kasan: bad access detected
[   16.943043] 
[   16.943257] Memory state around the buggy address:
[   16.943825]  ffff888102db1e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.944867]  ffff888102db1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.945746] >ffff888102db1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.946341]                    ^
[   16.946826]  ffff888102db1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.947406]  ffff888102db2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.948086] ==================================================================

[   19.133811] ==================================================================
[   19.134994] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0
[   19.135692] Write of size 1 at addr ffff00000eb85f00 by task kunit_try_catch/202
[   19.136376] 
[   19.136542] CPU: 0 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   19.136591] Tainted: [B]=BAD_PAGE, [N]=TEST
[   19.136604] Hardware name: Radxa ROCK Pi 4B (DT)
[   19.136621] Call trace:
[   19.136633]  show_stack+0x20/0x38 (C)
[   19.136666]  dump_stack_lvl+0x8c/0xd0
[   19.136697]  print_report+0x118/0x608
[   19.136726]  kasan_report+0xdc/0x128
[   19.136754]  __asan_report_store1_noabort+0x20/0x30
[   19.136788]  kmalloc_big_oob_right+0x2a4/0x2f0
[   19.136822]  kunit_try_run_case+0x170/0x3f0
[   19.136857]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   19.136897]  kthread+0x328/0x630
[   19.136931]  ret_from_fork+0x10/0x20
[   19.136963] 
[   19.142599] Allocated by task 202:
[   19.142950]  kasan_save_stack+0x3c/0x68
[   19.143354]  kasan_save_track+0x20/0x40
[   19.143751]  kasan_save_alloc_info+0x40/0x58
[   19.144191]  __kasan_kmalloc+0xd4/0xd8
[   19.144580]  __kmalloc_cache_noprof+0x15c/0x3c0
[   19.145054]  kmalloc_big_oob_right+0xb8/0x2f0
[   19.145507]  kunit_try_run_case+0x170/0x3f0
[   19.145948]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   19.146505]  kthread+0x328/0x630
[   19.146858]  ret_from_fork+0x10/0x20
[   19.147235] 
[   19.147404] The buggy address belongs to the object at ffff00000eb84000
[   19.147404]  which belongs to the cache kmalloc-8k of size 8192
[   19.148569] The buggy address is located 0 bytes to the right of
[   19.148569]  allocated 7936-byte region [ffff00000eb84000, ffff00000eb85f00)
[   19.149786] 
[   19.149956] The buggy address belongs to the physical page:
[   19.150493] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xeb80
[   19.151245] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   19.151978] flags: 0x3fffe0000000040(head|node=0|zone=0|lastcpupid=0x1ffff)
[   19.152661] page_type: f5(slab)
[   19.153000] raw: 03fffe0000000040 ffff000000403180 dead000000000122 0000000000000000
[   19.153747] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   19.154494] head: 03fffe0000000040 ffff000000403180 dead000000000122 0000000000000000
[   19.155247] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000
[   19.156002] head: 03fffe0000000003 fffffdffc03ae001 00000000ffffffff 00000000ffffffff
[   19.156756] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   19.157494] page dumped because: kasan: bad access detected
[   19.158029] 
[   19.158196] Memory state around the buggy address:
[   19.158665]  ffff00000eb85e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.159358]  ffff00000eb85e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   19.160051] >ffff00000eb85f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.160736]                    ^
[   19.161067]  ffff00000eb85f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.161760]  ffff00000eb86000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   19.162445] ==================================================================