Hay
Date
June 24, 2025, 11:37 a.m.

Environment
dragonboard-845c
qemu-arm64
qemu-x86_64

[   36.886759] ==================================================================
[   36.897705] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0
[   36.905111] Write of size 128 at addr ffff0000822c2600 by task kunit_try_catch/268
[   36.912787] 
[   36.914322] CPU: 3 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT 
[   36.914353] Tainted: [B]=BAD_PAGE, [N]=TEST
[   36.914363] Hardware name: Thundercomm Dragonboard 845c (DT)
[   36.914374] Call trace:
[   36.914382]  show_stack+0x20/0x38 (C)
[   36.914400]  dump_stack_lvl+0x8c/0xd0
[   36.914419]  print_report+0x118/0x608
[   36.914440]  kasan_report+0xdc/0x128
[   36.914459]  kasan_check_range+0x100/0x1a8
[   36.914481]  __asan_memset+0x34/0x78
[   36.914497]  kmalloc_oob_in_memset+0x144/0x2d0
[   36.914515]  kunit_try_run_case+0x170/0x3f0
[   36.914535]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   36.914557]  kthread+0x328/0x630
[   36.914572]  ret_from_fork+0x10/0x20
[   36.914590] 
[   36.983472] Allocated by task 268:
[   36.986937]  kasan_save_stack+0x3c/0x68
[   36.990845]  kasan_save_track+0x20/0x40
[   36.994752]  kasan_save_alloc_info+0x40/0x58
[   36.999096]  __kasan_kmalloc+0xd4/0xd8
[   37.002914]  __kmalloc_cache_noprof+0x16c/0x3c0
[   37.007521]  kmalloc_oob_in_memset+0xb0/0x2d0
[   37.011954]  kunit_try_run_case+0x170/0x3f0
[   37.016214]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   37.021785]  kthread+0x328/0x630
[   37.025071]  ret_from_fork+0x10/0x20
[   37.028716] 
[   37.030247] The buggy address belongs to the object at ffff0000822c2600
[   37.030247]  which belongs to the cache kmalloc-128 of size 128
[   37.042908] The buggy address is located 0 bytes inside of
[   37.042908]  allocated 120-byte region [ffff0000822c2600, ffff0000822c2678)
[   37.055487] 
[   37.057018] The buggy address belongs to the physical page:
[   37.062664] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1022c2
[   37.070768] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   37.078527] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   37.085585] page_type: f5(slab)
[   37.088784] raw: 0bfffe0000000040 ffff000080002a00 dead000000000122 0000000000000000
[   37.096632] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   37.104479] head: 0bfffe0000000040 ffff000080002a00 dead000000000122 0000000000000000
[   37.112413] head: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000
[   37.120346] head: 0bfffe0000000001 fffffdffc208b081 00000000ffffffff 00000000ffffffff
[   37.128280] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
[   37.136210] page dumped because: kasan: bad access detected
[   37.141856] 
[   37.143386] Memory state around the buggy address:
[   37.148245]  ffff0000822c2500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   37.155559]  ffff0000822c2580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   37.162875] >ffff0000822c2600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   37.170188]                                                                 ^
[   37.177414]  ffff0000822c2680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   37.184730]  ffff0000822c2700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   37.192042] ==================================================================

[   32.965241] ==================================================================
[   32.965378] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0
[   32.965620] Write of size 128 at addr fff00000c7732000 by task kunit_try_catch/181
[   32.965799] 
[   32.965906] CPU: 0 UID: 0 PID: 181 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT 
[   32.966205] Tainted: [B]=BAD_PAGE, [N]=TEST
[   32.966390] Hardware name: linux,dummy-virt (DT)
[   32.966493] Call trace:
[   32.966549]  show_stack+0x20/0x38 (C)
[   32.966667]  dump_stack_lvl+0x8c/0xd0
[   32.966779]  print_report+0x118/0x608
[   32.966907]  kasan_report+0xdc/0x128
[   32.967023]  kasan_check_range+0x100/0x1a8
[   32.969025]  __asan_memset+0x34/0x78
[   32.969559]  kmalloc_oob_in_memset+0x144/0x2d0
[   32.969794]  kunit_try_run_case+0x170/0x3f0
[   32.969955]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.970640]  kthread+0x328/0x630
[   32.970862]  ret_from_fork+0x10/0x20
[   32.971809] 
[   32.971955] Allocated by task 181:
[   32.972533]  kasan_save_stack+0x3c/0x68
[   32.973018]  kasan_save_track+0x20/0x40
[   32.973390]  kasan_save_alloc_info+0x40/0x58
[   32.974136]  __kasan_kmalloc+0xd4/0xd8
[   32.974416]  __kmalloc_cache_noprof+0x16c/0x3c0
[   32.975424]  kmalloc_oob_in_memset+0xb0/0x2d0
[   32.975561]  kunit_try_run_case+0x170/0x3f0
[   32.976371]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.976483]  kthread+0x328/0x630
[   32.976944]  ret_from_fork+0x10/0x20
[   32.977461] 
[   32.977647] The buggy address belongs to the object at fff00000c7732000
[   32.977647]  which belongs to the cache kmalloc-128 of size 128
[   32.977778] The buggy address is located 0 bytes inside of
[   32.977778]  allocated 120-byte region [fff00000c7732000, fff00000c7732078)
[   32.978396] 
[   32.978771] The buggy address belongs to the physical page:
[   32.978847] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107732
[   32.980089] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   32.980564] page_type: f5(slab)
[   32.981201] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   32.981644] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   32.981741] page dumped because: kasan: bad access detected
[   32.982780] 
[   32.982958] Memory state around the buggy address:
[   32.983328]  fff00000c7731f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.983518]  fff00000c7731f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.983618] >fff00000c7732000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   32.983709]                                                                 ^
[   32.983813]  fff00000c7732080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.983933]  fff00000c7732100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   32.984021] ==================================================================

[   29.024802] ==================================================================
[   29.025675] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320
[   29.026295] Write of size 128 at addr ffff888100aae700 by task kunit_try_catch/200
[   29.026899] 
[   29.027230] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[   29.027341] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.027372] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   29.027420] Call Trace:
[   29.027488]  <TASK>
[   29.027560]  dump_stack_lvl+0x73/0xb0
[   29.027678]  print_report+0xd1/0x650
[   29.027761]  ? __virt_addr_valid+0x1db/0x2d0
[   29.027866]  ? kmalloc_oob_in_memset+0x15f/0x320
[   29.027945]  ? kasan_complete_mode_report_info+0x2a/0x200
[   29.028009]  ? kmalloc_oob_in_memset+0x15f/0x320
[   29.028068]  kasan_report+0x141/0x180
[   29.028161]  ? kmalloc_oob_in_memset+0x15f/0x320
[   29.028254]  kasan_check_range+0x10c/0x1c0
[   29.028313]  __asan_memset+0x27/0x50
[   29.028358]  kmalloc_oob_in_memset+0x15f/0x320
[   29.028389]  ? __pfx_kmalloc_oob_in_memset+0x10/0x10
[   29.028420]  ? __schedule+0x10cc/0x2b60
[   29.028453]  ? __pfx_read_tsc+0x10/0x10
[   29.028482]  ? ktime_get_ts64+0x86/0x230
[   29.028513]  kunit_try_run_case+0x1a5/0x480
[   29.028566]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.028597]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   29.028642]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   29.028693]  ? __kthread_parkme+0x82/0x180
[   29.028722]  ? preempt_count_sub+0x50/0x80
[   29.028752]  ? __pfx_kunit_try_run_case+0x10/0x10
[   29.028783]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.028814]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   29.028844]  kthread+0x337/0x6f0
[   29.028869]  ? trace_preempt_on+0x20/0xc0
[   29.028899]  ? __pfx_kthread+0x10/0x10
[   29.028926]  ? _raw_spin_unlock_irq+0x47/0x80
[   29.028955]  ? calculate_sigpending+0x7b/0xa0
[   29.028985]  ? __pfx_kthread+0x10/0x10
[   29.029013]  ret_from_fork+0x116/0x1d0
[   29.029037]  ? __pfx_kthread+0x10/0x10
[   29.029063]  ret_from_fork_asm+0x1a/0x30
[   29.029102]  </TASK>
[   29.029116] 
[   29.042291] Allocated by task 200:
[   29.042686]  kasan_save_stack+0x45/0x70
[   29.043065]  kasan_save_track+0x18/0x40
[   29.043458]  kasan_save_alloc_info+0x3b/0x50
[   29.043938]  __kasan_kmalloc+0xb7/0xc0
[   29.044284]  __kmalloc_cache_noprof+0x189/0x420
[   29.044808]  kmalloc_oob_in_memset+0xac/0x320
[   29.045214]  kunit_try_run_case+0x1a5/0x480
[   29.045653]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   29.046104]  kthread+0x337/0x6f0
[   29.046462]  ret_from_fork+0x116/0x1d0
[   29.046963]  ret_from_fork_asm+0x1a/0x30
[   29.047223] 
[   29.047350] The buggy address belongs to the object at ffff888100aae700
[   29.047350]  which belongs to the cache kmalloc-128 of size 128
[   29.047908] The buggy address is located 0 bytes inside of
[   29.047908]  allocated 120-byte region [ffff888100aae700, ffff888100aae778)
[   29.049144] 
[   29.049414] The buggy address belongs to the physical page:
[   29.050009] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100aae
[   29.050790] flags: 0x200000000000000(node=0|zone=2)
[   29.051327] page_type: f5(slab)
[   29.051736] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   29.052365] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   29.052992] page dumped because: kasan: bad access detected
[   29.053424] 
[   29.053650] Memory state around the buggy address:
[   29.053959]  ffff888100aae600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   29.054296]  ffff888100aae680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.055632] >ffff888100aae700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   29.056165]                                                                 ^
[   29.056681]  ffff888100aae780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.057367]  ffff888100aae800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.058136] ==================================================================