Hay
Date
July 2, 2025, 11:10 a.m.

Environment
qemu-arm64
qemu-x86_64

[   30.861862] ==================================================================
[   30.862121] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   30.862341] Write of size 8 at addr fff00000c404ff71 by task kunit_try_catch/209
[   30.862404] 
[   30.862452] CPU: 0 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT 
[   30.862568] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.862595] Hardware name: linux,dummy-virt (DT)
[   30.862669] Call trace:
[   30.862711]  show_stack+0x20/0x38 (C)
[   30.862768]  dump_stack_lvl+0x8c/0xd0
[   30.862882]  print_report+0x118/0x608
[   30.862991]  kasan_report+0xdc/0x128
[   30.863040]  kasan_check_range+0x100/0x1a8
[   30.863316]  __asan_memset+0x34/0x78
[   30.863439]  kmalloc_oob_memset_8+0x150/0x2f8
[   30.863509]  kunit_try_run_case+0x170/0x3f0
[   30.863629]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.863719]  kthread+0x328/0x630
[   30.863787]  ret_from_fork+0x10/0x20
[   30.863976] 
[   30.864025] Allocated by task 209:
[   30.864074]  kasan_save_stack+0x3c/0x68
[   30.864124]  kasan_save_track+0x20/0x40
[   30.864359]  kasan_save_alloc_info+0x40/0x58
[   30.864590]  __kasan_kmalloc+0xd4/0xd8
[   30.864670]  __kmalloc_cache_noprof+0x16c/0x3c0
[   30.864790]  kmalloc_oob_memset_8+0xb0/0x2f8
[   30.864858]  kunit_try_run_case+0x170/0x3f0
[   30.864996]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.865054]  kthread+0x328/0x630
[   30.865086]  ret_from_fork+0x10/0x20
[   30.865155] 
[   30.865308] The buggy address belongs to the object at fff00000c404ff00
[   30.865308]  which belongs to the cache kmalloc-128 of size 128
[   30.865638] The buggy address is located 113 bytes inside of
[   30.865638]  allocated 120-byte region [fff00000c404ff00, fff00000c404ff78)
[   30.865757] 
[   30.865806] The buggy address belongs to the physical page:
[   30.865954] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10404f
[   30.866055] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   30.866253] page_type: f5(slab)
[   30.866415] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   30.866576] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   30.866718] page dumped because: kasan: bad access detected
[   30.866777] 
[   30.866826] Memory state around the buggy address:
[   30.866954]  fff00000c404fe00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   30.867026]  fff00000c404fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.867085] >fff00000c404ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   30.867277]                                                                 ^
[   30.867452]  fff00000c404ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.867632]  fff00000c4050000: 00 06 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc
[   30.867694] ==================================================================

[   32.630309] ==================================================================
[   32.630369] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8
[   32.630798] Write of size 8 at addr fff00000c63fba71 by task kunit_try_catch/207
[   32.630875] 
[   32.631148] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT 
[   32.631497] Tainted: [B]=BAD_PAGE, [N]=TEST
[   32.631525] Hardware name: linux,dummy-virt (DT)
[   32.631574] Call trace:
[   32.631597]  show_stack+0x20/0x38 (C)
[   32.631647]  dump_stack_lvl+0x8c/0xd0
[   32.631696]  print_report+0x118/0x608
[   32.631742]  kasan_report+0xdc/0x128
[   32.631789]  kasan_check_range+0x100/0x1a8
[   32.631833]  __asan_memset+0x34/0x78
[   32.631876]  kmalloc_oob_memset_8+0x150/0x2f8
[   32.632153]  kunit_try_run_case+0x170/0x3f0
[   32.632226]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.632279]  kthread+0x328/0x630
[   32.632320]  ret_from_fork+0x10/0x20
[   32.632748] 
[   32.632836] Allocated by task 207:
[   32.632919]  kasan_save_stack+0x3c/0x68
[   32.632963]  kasan_save_track+0x20/0x40
[   32.633007]  kasan_save_alloc_info+0x40/0x58
[   32.633049]  __kasan_kmalloc+0xd4/0xd8
[   32.633220]  __kmalloc_cache_noprof+0x16c/0x3c0
[   32.633280]  kmalloc_oob_memset_8+0xb0/0x2f8
[   32.633419]  kunit_try_run_case+0x170/0x3f0
[   32.633457]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.633503]  kthread+0x328/0x630
[   32.633550]  ret_from_fork+0x10/0x20
[   32.633585] 
[   32.633661] The buggy address belongs to the object at fff00000c63fba00
[   32.633661]  which belongs to the cache kmalloc-128 of size 128
[   32.633717] The buggy address is located 113 bytes inside of
[   32.633717]  allocated 120-byte region [fff00000c63fba00, fff00000c63fba78)
[   32.633817] 
[   32.633895] The buggy address belongs to the physical page:
[   32.633984] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063fb
[   32.634034] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   32.634080] page_type: f5(slab)
[   32.634174] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   32.634224] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   32.634263] page dumped because: kasan: bad access detected
[   32.634293] 
[   32.634311] Memory state around the buggy address:
[   32.634340]  fff00000c63fb900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.634381]  fff00000c63fb980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.634474] >fff00000c63fba00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   32.634511]                                                                 ^
[   32.634550]  fff00000c63fba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.634590]  fff00000c63fbb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.634627] ==================================================================

[   23.186864] ==================================================================
[   23.187369] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330
[   23.187924] Write of size 8 at addr ffff888105887f71 by task kunit_try_catch/224
[   23.188217] 
[   23.188331] CPU: 0 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) 
[   23.188403] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.188415] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.188435] Call Trace:
[   23.188447]  <TASK>
[   23.188479]  dump_stack_lvl+0x73/0xb0
[   23.188518]  print_report+0xd1/0x650
[   23.188540]  ? __virt_addr_valid+0x1db/0x2d0
[   23.188562]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.188583]  ? kasan_complete_mode_report_info+0x2a/0x200
[   23.188608]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.188629]  kasan_report+0x141/0x180
[   23.188650]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.188719]  kasan_check_range+0x10c/0x1c0
[   23.188745]  __asan_memset+0x27/0x50
[   23.188789]  kmalloc_oob_memset_8+0x166/0x330
[   23.188812]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   23.188834]  ? __schedule+0x10cc/0x2b60
[   23.188855]  ? __pfx_read_tsc+0x10/0x10
[   23.188877]  ? ktime_get_ts64+0x86/0x230
[   23.188901]  kunit_try_run_case+0x1a5/0x480
[   23.188925]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.188948]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.188969]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.188991]  ? __kthread_parkme+0x82/0x180
[   23.189010]  ? preempt_count_sub+0x50/0x80
[   23.189033]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.189058]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.189098]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.189124]  kthread+0x337/0x6f0
[   23.189143]  ? trace_preempt_on+0x20/0xc0
[   23.189166]  ? __pfx_kthread+0x10/0x10
[   23.189187]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.189211]  ? calculate_sigpending+0x7b/0xa0
[   23.189234]  ? __pfx_kthread+0x10/0x10
[   23.189272]  ret_from_fork+0x116/0x1d0
[   23.189290]  ? __pfx_kthread+0x10/0x10
[   23.189322]  ret_from_fork_asm+0x1a/0x30
[   23.189352]  </TASK>
[   23.189364] 
[   23.197258] Allocated by task 224:
[   23.197474]  kasan_save_stack+0x45/0x70
[   23.197806]  kasan_save_track+0x18/0x40
[   23.198024]  kasan_save_alloc_info+0x3b/0x50
[   23.198234]  __kasan_kmalloc+0xb7/0xc0
[   23.198432]  __kmalloc_cache_noprof+0x189/0x420
[   23.198728]  kmalloc_oob_memset_8+0xac/0x330
[   23.198962]  kunit_try_run_case+0x1a5/0x480
[   23.199121]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.199338]  kthread+0x337/0x6f0
[   23.199510]  ret_from_fork+0x116/0x1d0
[   23.199757]  ret_from_fork_asm+0x1a/0x30
[   23.199996] 
[   23.200098] The buggy address belongs to the object at ffff888105887f00
[   23.200098]  which belongs to the cache kmalloc-128 of size 128
[   23.200581] The buggy address is located 113 bytes inside of
[   23.200581]  allocated 120-byte region [ffff888105887f00, ffff888105887f78)
[   23.201105] 
[   23.201172] The buggy address belongs to the physical page:
[   23.201394] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105887
[   23.202063] flags: 0x200000000000000(node=0|zone=2)
[   23.202243] page_type: f5(slab)
[   23.202452] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   23.202978] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.203281] page dumped because: kasan: bad access detected
[   23.203542] 
[   23.203699] Memory state around the buggy address:
[   23.203930]  ffff888105887e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.204223]  ffff888105887e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.204590] >ffff888105887f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   23.204947]                                                                 ^
[   23.205220]  ffff888105887f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.205554]  ffff888105888000: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
[   23.205981] ==================================================================

[   23.466411] ==================================================================
[   23.466837] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330
[   23.467237] Write of size 8 at addr ffff88810255e771 by task kunit_try_catch/225
[   23.467803] 
[   23.467925] CPU: 0 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250702 #1 PREEMPT(voluntary) 
[   23.467989] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.468002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   23.468035] Call Trace:
[   23.468068]  <TASK>
[   23.468088]  dump_stack_lvl+0x73/0xb0
[   23.468120]  print_report+0xd1/0x650
[   23.468143]  ? __virt_addr_valid+0x1db/0x2d0
[   23.468177]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.468198]  ? kasan_complete_mode_report_info+0x2a/0x200
[   23.468223]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.468255]  kasan_report+0x141/0x180
[   23.468329]  ? kmalloc_oob_memset_8+0x166/0x330
[   23.468360]  kasan_check_range+0x10c/0x1c0
[   23.468384]  __asan_memset+0x27/0x50
[   23.468407]  kmalloc_oob_memset_8+0x166/0x330
[   23.468429]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   23.468453]  ? __pfx_kmalloc_oob_memset_8+0x10/0x10
[   23.468478]  kunit_try_run_case+0x1a5/0x480
[   23.468506]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.468529]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   23.468563]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   23.468585]  ? __kthread_parkme+0x82/0x180
[   23.468607]  ? preempt_count_sub+0x50/0x80
[   23.468642]  ? __pfx_kunit_try_run_case+0x10/0x10
[   23.468667]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.468691]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   23.468717]  kthread+0x337/0x6f0
[   23.468737]  ? trace_preempt_on+0x20/0xc0
[   23.468761]  ? __pfx_kthread+0x10/0x10
[   23.468781]  ? _raw_spin_unlock_irq+0x47/0x80
[   23.468805]  ? calculate_sigpending+0x7b/0xa0
[   23.468829]  ? __pfx_kthread+0x10/0x10
[   23.468850]  ret_from_fork+0x116/0x1d0
[   23.468870]  ? __pfx_kthread+0x10/0x10
[   23.468890]  ret_from_fork_asm+0x1a/0x30
[   23.468921]  </TASK>
[   23.468935] 
[   23.478129] Allocated by task 225:
[   23.478519]  kasan_save_stack+0x45/0x70
[   23.478689]  kasan_save_track+0x18/0x40
[   23.478868]  kasan_save_alloc_info+0x3b/0x50
[   23.479282]  __kasan_kmalloc+0xb7/0xc0
[   23.479434]  __kmalloc_cache_noprof+0x189/0x420
[   23.479656]  kmalloc_oob_memset_8+0xac/0x330
[   23.479970]  kunit_try_run_case+0x1a5/0x480
[   23.480397]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   23.480781]  kthread+0x337/0x6f0
[   23.481078]  ret_from_fork+0x116/0x1d0
[   23.481326]  ret_from_fork_asm+0x1a/0x30
[   23.481709] 
[   23.481814] The buggy address belongs to the object at ffff88810255e700
[   23.481814]  which belongs to the cache kmalloc-128 of size 128
[   23.482517] The buggy address is located 113 bytes inside of
[   23.482517]  allocated 120-byte region [ffff88810255e700, ffff88810255e778)
[   23.483359] 
[   23.483440] The buggy address belongs to the physical page:
[   23.483682] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10255e
[   23.484052] flags: 0x200000000000000(node=0|zone=2)
[   23.484237] page_type: f5(slab)
[   23.484442] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   23.485140] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.485541] page dumped because: kasan: bad access detected
[   23.485812] 
[   23.485912] Memory state around the buggy address:
[   23.486219]  ffff88810255e600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.486627]  ffff88810255e680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.487005] >ffff88810255e700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   23.487368]                                                                 ^
[   23.487763]  ffff88810255e780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.488012]  ffff88810255e800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.488465] ==================================================================