Hay
Date
July 10, 2025, 11:10 p.m.

Environment
qemu-arm64
qemu-x86_64

[   18.121783] ==================================================================
[   18.121948] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   18.122122] Free of addr fff00000c6454401 by task kunit_try_catch/241
[   18.122221] 
[   18.122257] CPU: 0 UID: 0 PID: 241 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT 
[   18.122675] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.122768] Hardware name: linux,dummy-virt (DT)
[   18.122873] Call trace:
[   18.122898]  show_stack+0x20/0x38 (C)
[   18.122993]  dump_stack_lvl+0x8c/0xd0
[   18.123894]  print_report+0x118/0x608
[   18.124549]  kasan_report_invalid_free+0xc0/0xe8
[   18.124610]  check_slab_allocation+0xfc/0x108
[   18.125018]  __kasan_mempool_poison_object+0x78/0x150
[   18.125161]  mempool_free+0x28c/0x328
[   18.125242]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   18.125471]  mempool_kmalloc_invalid_free+0xc0/0x118
[   18.125647]  kunit_try_run_case+0x170/0x3f0
[   18.126143]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.126290]  kthread+0x328/0x630
[   18.126444]  ret_from_fork+0x10/0x20
[   18.126522] 
[   18.126542] Allocated by task 241:
[   18.126599]  kasan_save_stack+0x3c/0x68
[   18.126964]  kasan_save_track+0x20/0x40
[   18.127200]  kasan_save_alloc_info+0x40/0x58
[   18.127407]  __kasan_mempool_unpoison_object+0x11c/0x180
[   18.127527]  remove_element+0x130/0x1f8
[   18.127590]  mempool_alloc_preallocated+0x58/0xc0
[   18.127684]  mempool_kmalloc_invalid_free_helper+0x94/0x2a8
[   18.127942]  mempool_kmalloc_invalid_free+0xc0/0x118
[   18.128209]  kunit_try_run_case+0x170/0x3f0
[   18.128388]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.128486]  kthread+0x328/0x630
[   18.128616]  ret_from_fork+0x10/0x20
[   18.128714] 
[   18.129093] The buggy address belongs to the object at fff00000c6454400
[   18.129093]  which belongs to the cache kmalloc-128 of size 128
[   18.129319] The buggy address is located 1 bytes inside of
[   18.129319]  128-byte region [fff00000c6454400, fff00000c6454480)
[   18.129424] 
[   18.129707] The buggy address belongs to the physical page:
[   18.129851] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106454
[   18.129956] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.130046] page_type: f5(slab)
[   18.130211] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.130288] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.130477] page dumped because: kasan: bad access detected
[   18.130881] 
[   18.130903] Memory state around the buggy address:
[   18.130940]  fff00000c6454300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.131015]  fff00000c6454380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.131279] >fff00000c6454400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.131525]                    ^
[   18.131673]  fff00000c6454480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.131887]  fff00000c6454500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.131973] ==================================================================
[   18.143798] ==================================================================
[   18.143881] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   18.144394] Free of addr fff00000c78a4001 by task kunit_try_catch/243
[   18.144740] 
[   18.144811] CPU: 0 UID: 0 PID: 243 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT 
[   18.144899] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.144927] Hardware name: linux,dummy-virt (DT)
[   18.144969] Call trace:
[   18.144996]  show_stack+0x20/0x38 (C)
[   18.145181]  dump_stack_lvl+0x8c/0xd0
[   18.145413]  print_report+0x118/0x608
[   18.145477]  kasan_report_invalid_free+0xc0/0xe8
[   18.145529]  __kasan_mempool_poison_object+0xfc/0x150
[   18.145583]  mempool_free+0x28c/0x328
[   18.145629]  mempool_kmalloc_invalid_free_helper+0x118/0x2a8
[   18.146240]  mempool_kmalloc_large_invalid_free+0xc0/0x118
[   18.146389]  kunit_try_run_case+0x170/0x3f0
[   18.146462]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.146519]  kthread+0x328/0x630
[   18.146562]  ret_from_fork+0x10/0x20
[   18.146747] 
[   18.146960] The buggy address belongs to the physical page:
[   18.147022] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078a4
[   18.147371] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   18.147497] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   18.147601] page_type: f8(unknown)
[   18.147707] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   18.147786] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   18.147911] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   18.147996] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   18.148144] head: 0bfffe0000000002 ffffc1ffc31e2901 00000000ffffffff 00000000ffffffff
[   18.148367] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   18.148685] page dumped because: kasan: bad access detected
[   18.148763] 
[   18.148844] Memory state around the buggy address:
[   18.148883]  fff00000c78a3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   18.149153]  fff00000c78a3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   18.149317] >fff00000c78a4000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.149434]                    ^
[   18.149490]  fff00000c78a4080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.149558]  fff00000c78a4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   18.149723] ==================================================================

[   14.410434] ==================================================================
[   14.411728] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412005] Free of addr ffff8881027a3d01 by task kunit_try_catch/259
[   14.412217] 
[   14.412302] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   14.412344] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.412386] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.412406] Call Trace:
[   14.412418]  <TASK>
[   14.412432]  dump_stack_lvl+0x73/0xb0
[   14.412460]  print_report+0xd1/0x650
[   14.412483]  ? __virt_addr_valid+0x1db/0x2d0
[   14.412508]  ? kasan_complete_mode_report_info+0x2a/0x200
[   14.412531]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412558]  kasan_report_invalid_free+0x10a/0x130
[   14.412583]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412611]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412648]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412674]  check_slab_allocation+0x11f/0x130
[   14.412696]  __kasan_mempool_poison_object+0x91/0x1d0
[   14.412721]  mempool_free+0x2ec/0x380
[   14.412744]  ? mempool_alloc_preallocated+0x5b/0x90
[   14.412768]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.412795]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   14.412821]  ? update_load_avg+0x1be/0x21b0
[   14.412848]  ? finish_task_switch.isra.0+0x153/0x700
[   14.412874]  mempool_kmalloc_invalid_free+0xed/0x140
[   14.412897]  ? __pfx_mempool_kmalloc_invalid_free+0x10/0x10
[   14.412925]  ? __pfx_mempool_kmalloc+0x10/0x10
[   14.412948]  ? __pfx_mempool_kfree+0x10/0x10
[   14.412973]  ? __pfx_read_tsc+0x10/0x10
[   14.412994]  ? ktime_get_ts64+0x86/0x230
[   14.413018]  kunit_try_run_case+0x1a5/0x480
[   14.413042]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.413064]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.413088]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.413111]  ? __kthread_parkme+0x82/0x180
[   14.413133]  ? preempt_count_sub+0x50/0x80
[   14.413155]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.413179]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.413204]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.413229]  kthread+0x337/0x6f0
[   14.413247]  ? trace_preempt_on+0x20/0xc0
[   14.413270]  ? __pfx_kthread+0x10/0x10
[   14.413290]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.413312]  ? calculate_sigpending+0x7b/0xa0
[   14.413336]  ? __pfx_kthread+0x10/0x10
[   14.413374]  ret_from_fork+0x116/0x1d0
[   14.413393]  ? __pfx_kthread+0x10/0x10
[   14.413413]  ret_from_fork_asm+0x1a/0x30
[   14.413444]  </TASK>
[   14.413455] 
[   14.427961] Allocated by task 259:
[   14.428125]  kasan_save_stack+0x45/0x70
[   14.428331]  kasan_save_track+0x18/0x40
[   14.428685]  kasan_save_alloc_info+0x3b/0x50
[   14.428845]  __kasan_mempool_unpoison_object+0x1a9/0x200
[   14.429018]  remove_element+0x11e/0x190
[   14.429208]  mempool_alloc_preallocated+0x4d/0x90
[   14.429444]  mempool_kmalloc_invalid_free_helper+0x83/0x2e0
[   14.429720]  mempool_kmalloc_invalid_free+0xed/0x140
[   14.429956]  kunit_try_run_case+0x1a5/0x480
[   14.430107]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.430382]  kthread+0x337/0x6f0
[   14.430759]  ret_from_fork+0x116/0x1d0
[   14.431015]  ret_from_fork_asm+0x1a/0x30
[   14.431219] 
[   14.431313] The buggy address belongs to the object at ffff8881027a3d00
[   14.431313]  which belongs to the cache kmalloc-128 of size 128
[   14.431911] The buggy address is located 1 bytes inside of
[   14.431911]  128-byte region [ffff8881027a3d00, ffff8881027a3d80)
[   14.432392] 
[   14.432488] The buggy address belongs to the physical page:
[   14.432660] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027a3
[   14.432970] flags: 0x200000000000000(node=0|zone=2)
[   14.433201] page_type: f5(slab)
[   14.433457] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   14.433697] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   14.433968] page dumped because: kasan: bad access detected
[   14.434215] 
[   14.434306] Memory state around the buggy address:
[   14.434844]  ffff8881027a3c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   14.435120]  ffff8881027a3c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.435528] >ffff8881027a3d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.435751]                    ^
[   14.435867]  ffff8881027a3d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   14.436131]  ffff8881027a3e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.436471] ==================================================================
[   14.441523] ==================================================================
[   14.441997] BUG: KASAN: invalid-free in mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.442310] Free of addr ffff888102a50001 by task kunit_try_catch/261
[   14.442613] 
[   14.442769] CPU: 1 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc5 #1 PREEMPT(voluntary) 
[   14.442812] Tainted: [B]=BAD_PAGE, [N]=TEST
[   14.442824] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   14.442845] Call Trace:
[   14.442856]  <TASK>
[   14.442872]  dump_stack_lvl+0x73/0xb0
[   14.442901]  print_report+0xd1/0x650
[   14.442923]  ? __virt_addr_valid+0x1db/0x2d0
[   14.442945]  ? kasan_addr_to_slab+0x11/0xa0
[   14.442966]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.442995]  kasan_report_invalid_free+0x10a/0x130
[   14.443027]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.443058]  ? mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.443085]  __kasan_mempool_poison_object+0x102/0x1d0
[   14.443111]  mempool_free+0x2ec/0x380
[   14.443136]  mempool_kmalloc_invalid_free_helper+0x132/0x2e0
[   14.443163]  ? __pfx_mempool_kmalloc_invalid_free_helper+0x10/0x10
[   14.443190]  ? __kasan_check_write+0x18/0x20
[   14.443222]  ? __pfx_sched_clock_cpu+0x10/0x10
[   14.443243]  ? irqentry_exit+0x2a/0x60
[   14.443266]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   14.443292]  mempool_kmalloc_large_invalid_free+0xed/0x140
[   14.443319]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   14.443348]  ? __pfx_mempool_kmalloc+0x10/0x10
[   14.443383]  ? __pfx_mempool_kfree+0x10/0x10
[   14.443407]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   14.443448]  ? __pfx_mempool_kmalloc_large_invalid_free+0x10/0x10
[   14.443618]  kunit_try_run_case+0x1a5/0x480
[   14.443653]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.443676]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   14.443700]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   14.443724]  ? __kthread_parkme+0x82/0x180
[   14.443744]  ? preempt_count_sub+0x50/0x80
[   14.443767]  ? __pfx_kunit_try_run_case+0x10/0x10
[   14.443791]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   14.443815]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   14.443840]  kthread+0x337/0x6f0
[   14.443859]  ? trace_preempt_on+0x20/0xc0
[   14.443882]  ? __pfx_kthread+0x10/0x10
[   14.443902]  ? _raw_spin_unlock_irq+0x47/0x80
[   14.443923]  ? calculate_sigpending+0x7b/0xa0
[   14.443947]  ? __pfx_kthread+0x10/0x10
[   14.443968]  ret_from_fork+0x116/0x1d0
[   14.443987]  ? __pfx_kthread+0x10/0x10
[   14.444007]  ret_from_fork_asm+0x1a/0x30
[   14.444037]  </TASK>
[   14.444047] 
[   14.453674] The buggy address belongs to the physical page:
[   14.453931] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a50
[   14.454221] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   14.454786] flags: 0x200000000000040(head|node=0|zone=2)
[   14.455087] page_type: f8(unknown)
[   14.455214] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   14.455459] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   14.455795] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   14.456146] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000
[   14.456500] head: 0200000000000002 ffffea00040a9401 00000000ffffffff 00000000ffffffff
[   14.456876] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004
[   14.457107] page dumped because: kasan: bad access detected
[   14.457405] 
[   14.457515] Memory state around the buggy address:
[   14.457746]  ffff888102a4ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   14.458048]  ffff888102a4ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   14.458300] >ffff888102a50000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.458954]                    ^
[   14.459091]  ffff888102a50080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.459424]  ffff888102a50100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   14.459707] ==================================================================