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Date
June 3, 2025, 7:38 a.m.

Environment
qemu-arm64
qemu-x86_64
x86 

[   18.147492] ==================================================================
[   18.147601] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   18.147975] Free of addr fff00000c6478001 by task kunit_try_catch/150
[   18.148083] 
[   18.148128] CPU: 1 UID: 0 PID: 150 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250603 #1 PREEMPT 
[   18.148403] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.148588] Hardware name: linux,dummy-virt (DT)
[   18.148669] Call trace:
[   18.148713]  show_stack+0x20/0x38 (C)
[   18.148776]  dump_stack_lvl+0x8c/0xd0
[   18.148852]  print_report+0x118/0x608
[   18.148918]  kasan_report_invalid_free+0xc0/0xe8
[   18.148967]  __kasan_kfree_large+0x5c/0xa8
[   18.149028]  free_large_kmalloc+0x64/0x190
[   18.149081]  kfree+0x270/0x3c8
[   18.149122]  kmalloc_large_invalid_free+0x108/0x270
[   18.149179]  kunit_try_run_case+0x170/0x3f0
[   18.149246]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.149297]  kthread+0x328/0x630
[   18.149349]  ret_from_fork+0x10/0x20
[   18.149415] 
[   18.149446] The buggy address belongs to the physical page:
[   18.149818] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106478
[   18.149913] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   18.150057] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   18.150218] page_type: f8(unknown)
[   18.150402] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   18.150587] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   18.150679] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   18.150773] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   18.150821] head: 0bfffe0000000002 ffffc1ffc3191e01 00000000ffffffff 00000000ffffffff
[   18.151017] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   18.151225] page dumped because: kasan: bad access detected
[   18.151314] 
[   18.151445] Memory state around the buggy address:
[   18.151481]  fff00000c6477f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.151542]  fff00000c6477f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.151697] >fff00000c6478000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.151736]                    ^
[   18.151765]  fff00000c6478080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.151805]  fff00000c6478100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.151920] ==================================================================
Metadata Full log Test run details 

[   13.754157] ==================================================================
[   13.754837] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   13.756035] Free of addr ffff888103948001 by task kunit_try_catch/167
[   13.756325] 
[   13.756471] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250603 #1 PREEMPT(voluntary) 
[   13.756562] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.756585] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.756617] Call Trace:
[   13.756635]  <TASK>
[   13.756661]  dump_stack_lvl+0x73/0xb0
[   13.756702]  print_report+0xd1/0x650
[   13.756729]  ? __virt_addr_valid+0x1db/0x2d0
[   13.756757]  ? kasan_addr_to_slab+0x11/0xa0
[   13.756779]  ? kfree+0x274/0x3f0
[   13.756898]  kasan_report_invalid_free+0x10a/0x130
[   13.756959]  ? kfree+0x274/0x3f0
[   13.757003]  ? kfree+0x274/0x3f0
[   13.757036]  __kasan_kfree_large+0x86/0xd0
[   13.757078]  free_large_kmalloc+0x4b/0x110
[   13.757130]  kfree+0x274/0x3f0
[   13.757176]  kmalloc_large_invalid_free+0x120/0x2b0
[   13.757239]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   13.757295]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   13.757356]  kunit_try_run_case+0x1a5/0x480
[   13.757406]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.757441]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.757531]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.757584]  ? __kthread_parkme+0x82/0x180
[   13.757633]  ? preempt_count_sub+0x50/0x80
[   13.757697]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.757747]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.757803]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.757855]  kthread+0x337/0x6f0
[   13.757901]  ? trace_preempt_on+0x20/0xc0
[   13.757957]  ? __pfx_kthread+0x10/0x10
[   13.757997]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.758037]  ? calculate_sigpending+0x7b/0xa0
[   13.758108]  ? __pfx_kthread+0x10/0x10
[   13.758148]  ret_from_fork+0x116/0x1d0
[   13.758186]  ? __pfx_kthread+0x10/0x10
[   13.758256]  ret_from_fork_asm+0x1a/0x30
[   13.758297]  </TASK>
[   13.758311] 
[   13.770631] The buggy address belongs to the physical page:
[   13.771054] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103948
[   13.771418] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   13.771712] flags: 0x200000000000040(head|node=0|zone=2)
[   13.772119] page_type: f8(unknown)
[   13.772441] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.773143] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.773883] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   13.774699] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   13.775004] head: 0200000000000002 ffffea00040e5201 00000000ffffffff 00000000ffffffff
[   13.775354] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   13.775991] page dumped because: kasan: bad access detected
[   13.776426] 
[   13.776657] Memory state around the buggy address:
[   13.777070]  ffff888103947f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   13.777484]  ffff888103947f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   13.777766] >ffff888103948000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.778297]                    ^
[   13.778657]  ffff888103948080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.779122]  ffff888103948100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.779524] ==================================================================
Metadata Full log Test run details 

[   20.122067] ==================================================================
[   20.133038] BUG: KASAN: invalid-free in kfree+0x274/0x3f0
[   20.138438] Free of addr ffff8881069c0001 by task kunit_try_catch/190
[   20.144876] 
[   20.146396] CPU: 3 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G S  B            N  6.15.0-next-20250603 #1 PREEMPT(voluntary) 
[   20.146405] Tainted: [S]=CPU_OUT_OF_SPEC, [B]=BAD_PAGE, [N]=TEST
[   20.146408] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021
[   20.146412] Call Trace:
[   20.146414]  <TASK>
[   20.146416]  dump_stack_lvl+0x73/0xb0
[   20.146432]  print_report+0xd1/0x650
[   20.146436]  ? __virt_addr_valid+0x1db/0x2d0
[   20.146441]  ? kasan_addr_to_slab+0x11/0xa0
[   20.146444]  ? kfree+0x274/0x3f0
[   20.146447]  kasan_report_invalid_free+0x10a/0x130
[   20.146452]  ? kfree+0x274/0x3f0
[   20.146455]  ? kfree+0x274/0x3f0
[   20.146458]  __kasan_kfree_large+0x86/0xd0
[   20.146462]  free_large_kmalloc+0x4b/0x110
[   20.146467]  kfree+0x274/0x3f0
[   20.146470]  kmalloc_large_invalid_free+0x120/0x2b0
[   20.146475]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   20.146479]  ? __schedule+0x10cc/0x2b60
[   20.146484]  ? ktime_get_ts64+0x83/0x230
[   20.146488]  kunit_try_run_case+0x1a2/0x480
[   20.146492]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.146495]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   20.146500]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.146504]  ? __kthread_parkme+0x82/0x180
[   20.146508]  ? preempt_count_sub+0x50/0x80
[   20.146512]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.146515]  kunit_generic_run_threadfn_adapter+0x82/0xf0
[   20.146520]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.146524]  kthread+0x334/0x6f0
[   20.146528]  ? trace_preempt_on+0x20/0xc0
[   20.146532]  ? __pfx_kthread+0x10/0x10
[   20.146536]  ? _raw_spin_unlock_irq+0x47/0x80
[   20.146540]  ? calculate_sigpending+0x7b/0xa0
[   20.146544]  ? __pfx_kthread+0x10/0x10
[   20.146548]  ret_from_fork+0x113/0x1d0
[   20.146551]  ? __pfx_kthread+0x10/0x10
[   20.146555]  ret_from_fork_asm+0x1a/0x30
[   20.146561]  </TASK>
[   20.146562] 
[   20.317064] The buggy address belongs to the physical page:
[   20.322635] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1069c0
[   20.330636] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   20.338298] flags: 0x200000000000040(head|node=0|zone=2)
[   20.343619] page_type: f8(unknown)
[   20.347026] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.354772] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   20.362510] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.370336] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   20.378198] head: 0200000000000002 ffffea00041a7001 00000000ffffffff 00000000ffffffff
[   20.386023] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   20.393849] page dumped because: kasan: bad access detected
[   20.399445] 
[   20.400936] Memory state around the buggy address:
[   20.405729]  ffff8881069bff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.412949]  ffff8881069bff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.420169] >ffff8881069c0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.427388]                    ^
[   20.430663]  ffff8881069c0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.437883]  ffff8881069c0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.445102] ==================================================================
Metadata Full log Test run details