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

Environment
dragonboard-845c
qemu-arm64
qemu-x86_64 

[   31.269289] ==================================================================
[   31.280409] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   31.285892] Free of addr ffff000086418001 by task kunit_try_catch/248
[   31.292418] 
[   31.293952] CPU: 3 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT 
[   31.293981] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.293990] Hardware name: Thundercomm Dragonboard 845c (DT)
[   31.294002] Call trace:
[   31.294009]  show_stack+0x20/0x38 (C)
[   31.294028]  dump_stack_lvl+0x8c/0xd0
[   31.294050]  print_report+0x118/0x608
[   31.294069]  kasan_report_invalid_free+0xc0/0xe8
[   31.294091]  __kasan_kfree_large+0x5c/0xa8
[   31.294111]  free_large_kmalloc+0x68/0x150
[   31.294129]  kfree+0x270/0x3c8
[   31.294145]  kmalloc_large_invalid_free+0x108/0x270
[   31.294163]  kunit_try_run_case+0x170/0x3f0
[   31.294182]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.294205]  kthread+0x328/0x630
[   31.294220]  ret_from_fork+0x10/0x20
[   31.294237] 
[   31.368222] The buggy address belongs to the physical page:
[   31.373868] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106418
[   31.381973] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   31.389731] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   31.396788] page_type: f8(unknown)
[   31.400258] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   31.408105] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   31.415951] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   31.423883] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   31.431815] head: 0bfffe0000000002 fffffdffc2190601 00000000ffffffff 00000000ffffffff
[   31.439748] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   31.447675] page dumped because: kasan: bad access detected
[   31.453320] 
[   31.454850] Memory state around the buggy address:
[   31.459709]  ffff000086417f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.467023]  ffff000086417f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.474338] >ffff000086418000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.481650]                    ^
[   31.484933]  ffff000086418080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.492247]  ffff000086418100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   31.499559] ==================================================================
Metadata Full log Test run details 

[   32.552677] ==================================================================
[   32.552807] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   32.552937] Free of addr fff00000c7758001 by task kunit_try_catch/161
[   32.553049] 
[   32.553132] CPU: 0 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT 
[   32.553331] Tainted: [B]=BAD_PAGE, [N]=TEST
[   32.553394] Hardware name: linux,dummy-virt (DT)
[   32.553466] Call trace:
[   32.553530]  show_stack+0x20/0x38 (C)
[   32.553652]  dump_stack_lvl+0x8c/0xd0
[   32.553787]  print_report+0x118/0x608
[   32.553922]  kasan_report_invalid_free+0xc0/0xe8
[   32.554044]  __kasan_kfree_large+0x5c/0xa8
[   32.554160]  free_large_kmalloc+0x68/0x150
[   32.554272]  kfree+0x270/0x3c8
[   32.554386]  kmalloc_large_invalid_free+0x108/0x270
[   32.554513]  kunit_try_run_case+0x170/0x3f0
[   32.554630]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.554755]  kthread+0x328/0x630
[   32.554864]  ret_from_fork+0x10/0x20
[   32.555017] 
[   32.555075] The buggy address belongs to the physical page:
[   32.555208] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107758
[   32.555343] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   32.555465] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   32.555607] page_type: f8(unknown)
[   32.555751] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   32.555869] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   32.556023] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   32.556154] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   32.556282] head: 0bfffe0000000002 ffffc1ffc31dd601 00000000ffffffff 00000000ffffffff
[   32.556406] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   32.556529] page dumped because: kasan: bad access detected
[   32.556683] 
[   32.556798] Memory state around the buggy address:
[   32.556964]  fff00000c7757f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   32.557071]  fff00000c7757f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   32.557186] >fff00000c7758000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   32.557355]                    ^
[   32.557435]  fff00000c7758080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   32.557540]  fff00000c7758100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   32.557698] ==================================================================
Metadata Full log Test run details 

[   28.181467] ==================================================================
[   28.182151] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   28.183140] Free of addr ffff888102d60001 by task kunit_try_catch/180
[   28.183905] 
[   28.184076] CPU: 0 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc3-next-20250624 #1 PREEMPT(voluntary) 
[   28.184223] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.184258] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   28.184302] Call Trace:
[   28.184331]  <TASK>
[   28.184369]  dump_stack_lvl+0x73/0xb0
[   28.184442]  print_report+0xd1/0x650
[   28.184495]  ? __virt_addr_valid+0x1db/0x2d0
[   28.184566]  ? kasan_addr_to_slab+0x11/0xa0
[   28.184618]  ? kfree+0x274/0x3f0
[   28.184674]  kasan_report_invalid_free+0x10a/0x130
[   28.184742]  ? kfree+0x274/0x3f0
[   28.184806]  ? kfree+0x274/0x3f0
[   28.184855]  __kasan_kfree_large+0x86/0xd0
[   28.184900]  free_large_kmalloc+0x52/0x110
[   28.184932]  kfree+0x274/0x3f0
[   28.184965]  kmalloc_large_invalid_free+0x120/0x2b0
[   28.184996]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   28.185029]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   28.185075]  kunit_try_run_case+0x1a5/0x480
[   28.185144]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.185185]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   28.185220]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   28.185253]  ? __kthread_parkme+0x82/0x180
[   28.185281]  ? preempt_count_sub+0x50/0x80
[   28.185312]  ? __pfx_kunit_try_run_case+0x10/0x10
[   28.185343]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   28.185374]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   28.185404]  kthread+0x337/0x6f0
[   28.185429]  ? trace_preempt_on+0x20/0xc0
[   28.185459]  ? __pfx_kthread+0x10/0x10
[   28.185485]  ? _raw_spin_unlock_irq+0x47/0x80
[   28.185514]  ? calculate_sigpending+0x7b/0xa0
[   28.185564]  ? __pfx_kthread+0x10/0x10
[   28.185593]  ret_from_fork+0x116/0x1d0
[   28.185619]  ? __pfx_kthread+0x10/0x10
[   28.185660]  ret_from_fork_asm+0x1a/0x30
[   28.185701]  </TASK>
[   28.185716] 
[   28.201741] The buggy address belongs to the physical page:
[   28.202333] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d60
[   28.203159] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   28.203857] flags: 0x200000000000040(head|node=0|zone=2)
[   28.204492] page_type: f8(unknown)
[   28.205017] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   28.205836] raw: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   28.206440] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   28.207419] head: 0000000000000000 0000000000000000 00000000f8000000 0000000000000000
[   28.207950] head: 0200000000000002 ffffea00040b5801 00000000ffffffff 00000000ffffffff
[   28.208675] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   28.209357] page dumped because: kasan: bad access detected
[   28.209880] 
[   28.210082] Memory state around the buggy address:
[   28.210726]  ffff888102d5ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.211112]  ffff888102d5ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   28.211755] >ffff888102d60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.212254]                    ^
[   28.212699]  ffff888102d60080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.213341]  ffff888102d60100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   28.214200] ==================================================================
Metadata Full log Test run details