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

Environment
e850-96
qemu-arm64
qemu-x86_64 

[   21.211214] ==================================================================
[   21.220757] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   21.228220] Write of size 1 at addr ffff00080332200a by task kunit_try_catch/195
[   21.235598] 
[   21.237083] CPU: 7 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   21.237139] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.237155] Hardware name: WinLink E850-96 board (DT)
[   21.237178] Call trace:
[   21.237191]  show_stack+0x20/0x38 (C)
[   21.237229]  dump_stack_lvl+0x8c/0xd0
[   21.237267]  print_report+0x118/0x608
[   21.237298]  kasan_report+0xdc/0x128
[   21.237327]  __asan_report_store1_noabort+0x20/0x30
[   21.237363]  kmalloc_large_oob_right+0x278/0x2b8
[   21.237396]  kunit_try_run_case+0x170/0x3f0
[   21.237431]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.237470]  kthread+0x328/0x630
[   21.237505]  ret_from_fork+0x10/0x20
[   21.237543] 
[   21.300443] The buggy address belongs to the physical page:
[   21.306000] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x883320
[   21.313983] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   21.321622] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   21.328566] page_type: f8(unknown)
[   21.331964] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   21.339682] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   21.347408] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   21.355219] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   21.363033] head: 0bfffe0000000002 fffffdffe00cc801 00000000ffffffff 00000000ffffffff
[   21.370845] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   21.378650] page dumped because: kasan: bad access detected
[   21.384205] 
[   21.385683] Memory state around the buggy address:
[   21.390461]  ffff000803321f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.397664]  ffff000803321f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.404870] >ffff000803322000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.412070]                       ^
[   21.415546]  ffff000803322080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.422751]  ffff000803322100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.429952] ==================================================================
Metadata Full log Test run details 

[   17.687296] ==================================================================
[   17.687421] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   17.687742] Write of size 1 at addr fff00000c790e00a by task kunit_try_catch/148
[   17.687941] 
[   17.688024] CPU: 0 UID: 0 PID: 148 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT 
[   17.688242] Tainted: [B]=BAD_PAGE, [N]=TEST
[   17.688330] Hardware name: linux,dummy-virt (DT)
[   17.688499] Call trace:
[   17.688549]  show_stack+0x20/0x38 (C)
[   17.688609]  dump_stack_lvl+0x8c/0xd0
[   17.688829]  print_report+0x118/0x608
[   17.689015]  kasan_report+0xdc/0x128
[   17.689091]  __asan_report_store1_noabort+0x20/0x30
[   17.689284]  kmalloc_large_oob_right+0x278/0x2b8
[   17.689425]  kunit_try_run_case+0x170/0x3f0
[   17.689541]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.689907]  kthread+0x328/0x630
[   17.689970]  ret_from_fork+0x10/0x20
[   17.690215] 
[   17.690517] The buggy address belongs to the physical page:
[   17.690646] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10790c
[   17.690700] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   17.690778] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   17.691010] page_type: f8(unknown)
[   17.691067] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   17.691153] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   17.691281] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   17.691411] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   17.691565] head: 0bfffe0000000002 ffffc1ffc31e4301 00000000ffffffff 00000000ffffffff
[   17.691674] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   17.691737] page dumped because: kasan: bad access detected
[   17.691934] 
[   17.691975] Memory state around the buggy address:
[   17.692008]  fff00000c790df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.692060]  fff00000c790df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   17.692199] >fff00000c790e000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   17.692341]                       ^
[   17.692380]  fff00000c790e080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   17.692424]  fff00000c790e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   17.692511] ==================================================================
Metadata Full log Test run details 

[   10.383711] ==================================================================
[   10.384936] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2e9/0x330
[   10.385302] Write of size 1 at addr ffff88810289200a by task kunit_try_catch/165
[   10.385530] 
[   10.385640] CPU: 1 UID: 0 PID: 165 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc3 #1 PREEMPT(voluntary) 
[   10.385688] Tainted: [B]=BAD_PAGE, [N]=TEST
[   10.385699] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   10.385752] Call Trace:
[   10.385784]  <TASK>
[   10.385802]  dump_stack_lvl+0x73/0xb0
[   10.385830]  print_report+0xd1/0x650
[   10.385853]  ? __virt_addr_valid+0x1db/0x2d0
[   10.385874]  ? kmalloc_large_oob_right+0x2e9/0x330
[   10.385896]  ? kasan_addr_to_slab+0x11/0xa0
[   10.385929]  ? kmalloc_large_oob_right+0x2e9/0x330
[   10.385951]  kasan_report+0x141/0x180
[   10.385973]  ? kmalloc_large_oob_right+0x2e9/0x330
[   10.386000]  __asan_report_store1_noabort+0x1b/0x30
[   10.386020]  kmalloc_large_oob_right+0x2e9/0x330
[   10.386042]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   10.386065]  ? __schedule+0x10cc/0x2b60
[   10.386087]  ? __pfx_read_tsc+0x10/0x10
[   10.386107]  ? ktime_get_ts64+0x86/0x230
[   10.386131]  kunit_try_run_case+0x1a5/0x480
[   10.386156]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.386177]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   10.386200]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   10.386223]  ? __kthread_parkme+0x82/0x180
[   10.386245]  ? preempt_count_sub+0x50/0x80
[   10.386271]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.386293]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.386315]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   10.386337]  kthread+0x337/0x6f0
[   10.386353]  ? trace_preempt_on+0x20/0xc0
[   10.386376]  ? __pfx_kthread+0x10/0x10
[   10.386393]  ? _raw_spin_unlock_irq+0x47/0x80
[   10.386414]  ? calculate_sigpending+0x7b/0xa0
[   10.386435]  ? __pfx_kthread+0x10/0x10
[   10.386452]  ret_from_fork+0x41/0x80
[   10.386472]  ? __pfx_kthread+0x10/0x10
[   10.386489]  ret_from_fork_asm+0x1a/0x30
[   10.386520]  </TASK>
[   10.386531] 
[   10.399808] The buggy address belongs to the physical page:
[   10.400019] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102890
[   10.400270] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   10.400489] flags: 0x200000000000040(head|node=0|zone=2)
[   10.401090] page_type: f8(unknown)
[   10.401551] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   10.402413] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   10.403430] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   10.404228] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   10.405067] head: 0200000000000002 ffffea00040a2401 00000000ffffffff 00000000ffffffff
[   10.405785] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   10.406161] page dumped because: kasan: bad access detected
[   10.406327] 
[   10.406394] Memory state around the buggy address:
[   10.406548]  ffff888102891f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   10.406762]  ffff888102891f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   10.407457] >ffff888102892000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   10.407856]                       ^
[   10.408113]  ffff888102892080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   10.408451]  ffff888102892100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   10.408700] ==================================================================
Metadata Full log Test run details