Date
July 9, 2025, 2:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.297503] ================================================================== [ 19.297572] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 19.298143] Free of addr fff00000c789c000 by task kunit_try_catch/239 [ 19.298225] [ 19.298268] CPU: 1 UID: 0 PID: 239 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5 #1 PREEMPT [ 19.298361] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 19.298395] Hardware name: linux,dummy-virt (DT) [ 19.298639] Call trace: [ 19.298897] show_stack+0x20/0x38 (C) [ 19.299022] dump_stack_lvl+0x8c/0xd0 [ 19.299188] print_report+0x118/0x608 [ 19.299613] kasan_report_invalid_free+0xc0/0xe8 [ 19.299757] __kasan_mempool_poison_pages+0xe0/0xe8 [ 19.299916] mempool_free+0x24c/0x328 [ 19.300161] mempool_double_free_helper+0x150/0x2e8 [ 19.300252] mempool_page_alloc_double_free+0xbc/0x118 [ 19.300442] kunit_try_run_case+0x170/0x3f0 [ 19.300727] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.300891] kthread+0x328/0x630 [ 19.301114] ret_from_fork+0x10/0x20 [ 19.301184] [ 19.301207] The buggy address belongs to the physical page: [ 19.301626] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10789c [ 19.301708] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.301787] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.302139] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.302306] page dumped because: kasan: bad access detected [ 19.302481] [ 19.302560] Memory state around the buggy address: [ 19.302648] fff00000c789bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.302700] fff00000c789bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.303154] >fff00000c789c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.303254] ^ [ 19.303417] fff00000c789c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.303512] fff00000c789c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.303596] ================================================================== [ 19.262099] ================================================================== [ 19.262161] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 19.262217] Free of addr fff00000c5a52100 by task kunit_try_catch/235 [ 19.262263] [ 19.262296] CPU: 1 UID: 0 PID: 235 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5 #1 PREEMPT [ 19.262386] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 19.262418] Hardware name: linux,dummy-virt (DT) [ 19.262451] Call trace: [ 19.262475] show_stack+0x20/0x38 (C) [ 19.262525] dump_stack_lvl+0x8c/0xd0 [ 19.262576] print_report+0x118/0x608 [ 19.262623] kasan_report_invalid_free+0xc0/0xe8 [ 19.262675] check_slab_allocation+0xd4/0x108 [ 19.262723] __kasan_mempool_poison_object+0x78/0x150 [ 19.262796] mempool_free+0x28c/0x328 [ 19.262846] mempool_double_free_helper+0x150/0x2e8 [ 19.262898] mempool_kmalloc_double_free+0xc0/0x118 [ 19.262952] kunit_try_run_case+0x170/0x3f0 [ 19.263003] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.263057] kthread+0x328/0x630 [ 19.263110] ret_from_fork+0x10/0x20 [ 19.263889] [ 19.263933] Allocated by task 235: [ 19.263986] kasan_save_stack+0x3c/0x68 [ 19.264060] kasan_save_track+0x20/0x40 [ 19.264555] kasan_save_alloc_info+0x40/0x58 [ 19.264625] __kasan_mempool_unpoison_object+0x11c/0x180 [ 19.264679] remove_element+0x130/0x1f8 [ 19.264717] mempool_alloc_preallocated+0x58/0xc0 [ 19.264950] mempool_double_free_helper+0x94/0x2e8 [ 19.265057] mempool_kmalloc_double_free+0xc0/0x118 [ 19.265451] kunit_try_run_case+0x170/0x3f0 [ 19.265585] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.265688] kthread+0x328/0x630 [ 19.265733] ret_from_fork+0x10/0x20 [ 19.266110] [ 19.266256] Freed by task 235: [ 19.266377] kasan_save_stack+0x3c/0x68 [ 19.266529] kasan_save_track+0x20/0x40 [ 19.266704] kasan_save_free_info+0x4c/0x78 [ 19.266782] __kasan_mempool_poison_object+0xc0/0x150 [ 19.266844] mempool_free+0x28c/0x328 [ 19.267109] mempool_double_free_helper+0x100/0x2e8 [ 19.267328] mempool_kmalloc_double_free+0xc0/0x118 [ 19.267425] kunit_try_run_case+0x170/0x3f0 [ 19.267592] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.267666] kthread+0x328/0x630 [ 19.267700] ret_from_fork+0x10/0x20 [ 19.267914] [ 19.268047] The buggy address belongs to the object at fff00000c5a52100 [ 19.268047] which belongs to the cache kmalloc-128 of size 128 [ 19.268529] The buggy address is located 0 bytes inside of [ 19.268529] 128-byte region [fff00000c5a52100, fff00000c5a52180) [ 19.268708] [ 19.268746] The buggy address belongs to the physical page: [ 19.268797] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a52 [ 19.268950] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.269067] page_type: f5(slab) [ 19.269137] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.269382] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.269551] page dumped because: kasan: bad access detected [ 19.269612] [ 19.269744] Memory state around the buggy address: [ 19.269802] fff00000c5a52000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.269944] fff00000c5a52080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.270050] >fff00000c5a52100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.270133] ^ [ 19.270442] fff00000c5a52180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.270533] fff00000c5a52200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.270622] ================================================================== [ 19.280205] ================================================================== [ 19.280275] BUG: KASAN: double-free in mempool_double_free_helper+0x150/0x2e8 [ 19.280334] Free of addr fff00000c789c000 by task kunit_try_catch/237 [ 19.280600] [ 19.280650] CPU: 1 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5 #1 PREEMPT [ 19.280916] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 19.280961] Hardware name: linux,dummy-virt (DT) [ 19.281348] Call trace: [ 19.281708] show_stack+0x20/0x38 (C) [ 19.281859] dump_stack_lvl+0x8c/0xd0 [ 19.282033] print_report+0x118/0x608 [ 19.282151] kasan_report_invalid_free+0xc0/0xe8 [ 19.282316] __kasan_mempool_poison_object+0x14c/0x150 [ 19.282474] mempool_free+0x28c/0x328 [ 19.282553] mempool_double_free_helper+0x150/0x2e8 [ 19.282655] mempool_kmalloc_large_double_free+0xc0/0x118 [ 19.282712] kunit_try_run_case+0x170/0x3f0 [ 19.282762] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.282817] kthread+0x328/0x630 [ 19.282860] ret_from_fork+0x10/0x20 [ 19.282911] [ 19.283251] The buggy address belongs to the physical page: [ 19.283297] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10789c [ 19.283534] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.284054] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.284256] page_type: f8(unknown) [ 19.284411] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.284575] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.284762] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.285030] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.285176] head: 0bfffe0000000002 ffffc1ffc31e2701 00000000ffffffff 00000000ffffffff [ 19.285302] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 19.285391] page dumped because: kasan: bad access detected [ 19.285426] [ 19.285461] Memory state around the buggy address: [ 19.285816] fff00000c789bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.285880] fff00000c789bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.285941] >fff00000c789c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.285985] ^ [ 19.286017] fff00000c789c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.286339] fff00000c789c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 19.286414] ==================================================================
[ 14.419153] ================================================================== [ 14.419660] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 14.420101] Free of addr ffff888103966200 by task kunit_try_catch/252 [ 14.420402] [ 14.420512] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.420558] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.420569] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.420589] Call Trace: [ 14.420618] <TASK> [ 14.420634] dump_stack_lvl+0x73/0xb0 [ 14.420666] print_report+0xd1/0x650 [ 14.420689] ? __virt_addr_valid+0x1db/0x2d0 [ 14.420715] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.420737] ? mempool_double_free_helper+0x184/0x370 [ 14.420762] kasan_report_invalid_free+0x10a/0x130 [ 14.420787] ? mempool_double_free_helper+0x184/0x370 [ 14.420813] ? mempool_double_free_helper+0x184/0x370 [ 14.420835] ? mempool_double_free_helper+0x184/0x370 [ 14.420859] check_slab_allocation+0x101/0x130 [ 14.420935] __kasan_mempool_poison_object+0x91/0x1d0 [ 14.420961] mempool_free+0x2ec/0x380 [ 14.420985] ? mempool_alloc_preallocated+0x5b/0x90 [ 14.421011] mempool_double_free_helper+0x184/0x370 [ 14.421038] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 14.421068] ? finish_task_switch.isra.0+0x153/0x700 [ 14.421099] mempool_kmalloc_double_free+0xed/0x140 [ 14.421124] ? __pfx_mempool_kmalloc_double_free+0x10/0x10 [ 14.421152] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.421175] ? __pfx_mempool_kfree+0x10/0x10 [ 14.421201] ? __pfx_read_tsc+0x10/0x10 [ 14.421223] ? ktime_get_ts64+0x86/0x230 [ 14.421249] kunit_try_run_case+0x1a5/0x480 [ 14.421275] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.421298] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.421324] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.421348] ? __kthread_parkme+0x82/0x180 [ 14.421370] ? preempt_count_sub+0x50/0x80 [ 14.421393] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.421418] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.421443] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.421468] kthread+0x337/0x6f0 [ 14.421487] ? trace_preempt_on+0x20/0xc0 [ 14.421511] ? __pfx_kthread+0x10/0x10 [ 14.421531] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.421553] ? calculate_sigpending+0x7b/0xa0 [ 14.421577] ? __pfx_kthread+0x10/0x10 [ 14.421609] ret_from_fork+0x116/0x1d0 [ 14.421628] ? __pfx_kthread+0x10/0x10 [ 14.421647] ret_from_fork_asm+0x1a/0x30 [ 14.421679] </TASK> [ 14.421690] [ 14.430741] Allocated by task 252: [ 14.431272] kasan_save_stack+0x45/0x70 [ 14.431512] kasan_save_track+0x18/0x40 [ 14.431704] kasan_save_alloc_info+0x3b/0x50 [ 14.432010] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 14.432260] remove_element+0x11e/0x190 [ 14.432434] mempool_alloc_preallocated+0x4d/0x90 [ 14.432640] mempool_double_free_helper+0x8a/0x370 [ 14.432990] mempool_kmalloc_double_free+0xed/0x140 [ 14.433191] kunit_try_run_case+0x1a5/0x480 [ 14.433369] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.433612] kthread+0x337/0x6f0 [ 14.433792] ret_from_fork+0x116/0x1d0 [ 14.433967] ret_from_fork_asm+0x1a/0x30 [ 14.434137] [ 14.434234] Freed by task 252: [ 14.434374] kasan_save_stack+0x45/0x70 [ 14.434552] kasan_save_track+0x18/0x40 [ 14.434790] kasan_save_free_info+0x3f/0x60 [ 14.435196] __kasan_mempool_poison_object+0x131/0x1d0 [ 14.435421] mempool_free+0x2ec/0x380 [ 14.435615] mempool_double_free_helper+0x109/0x370 [ 14.435803] mempool_kmalloc_double_free+0xed/0x140 [ 14.436107] kunit_try_run_case+0x1a5/0x480 [ 14.436285] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.436512] kthread+0x337/0x6f0 [ 14.436646] ret_from_fork+0x116/0x1d0 [ 14.436780] ret_from_fork_asm+0x1a/0x30 [ 14.436923] [ 14.436998] The buggy address belongs to the object at ffff888103966200 [ 14.436998] which belongs to the cache kmalloc-128 of size 128 [ 14.437443] The buggy address is located 0 bytes inside of [ 14.437443] 128-byte region [ffff888103966200, ffff888103966280) [ 14.438528] [ 14.438646] The buggy address belongs to the physical page: [ 14.438878] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103966 [ 14.439127] flags: 0x200000000000000(node=0|zone=2) [ 14.439293] page_type: f5(slab) [ 14.439417] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.439658] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.440475] page dumped because: kasan: bad access detected [ 14.440764] [ 14.440860] Memory state around the buggy address: [ 14.441167] ffff888103966100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.441430] ffff888103966180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.441768] >ffff888103966200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.441983] ^ [ 14.442098] ffff888103966280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.442764] ffff888103966300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.443132] ================================================================== [ 14.447769] ================================================================== [ 14.448286] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 14.448624] Free of addr ffff888102acc000 by task kunit_try_catch/254 [ 14.448908] [ 14.449019] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.449068] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.449136] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.449159] Call Trace: [ 14.449172] <TASK> [ 14.449189] dump_stack_lvl+0x73/0xb0 [ 14.449222] print_report+0xd1/0x650 [ 14.449244] ? __virt_addr_valid+0x1db/0x2d0 [ 14.449270] ? kasan_addr_to_slab+0x11/0xa0 [ 14.449290] ? mempool_double_free_helper+0x184/0x370 [ 14.449315] kasan_report_invalid_free+0x10a/0x130 [ 14.449341] ? mempool_double_free_helper+0x184/0x370 [ 14.449368] ? mempool_double_free_helper+0x184/0x370 [ 14.449392] __kasan_mempool_poison_object+0x1b3/0x1d0 [ 14.449417] mempool_free+0x2ec/0x380 [ 14.449444] mempool_double_free_helper+0x184/0x370 [ 14.449468] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 14.449496] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.449519] ? finish_task_switch.isra.0+0x153/0x700 [ 14.449546] mempool_kmalloc_large_double_free+0xed/0x140 [ 14.449571] ? __pfx_mempool_kmalloc_large_double_free+0x10/0x10 [ 14.449611] ? __kasan_check_write+0x18/0x20 [ 14.449632] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.449655] ? __pfx_mempool_kfree+0x10/0x10 [ 14.449681] ? __pfx_read_tsc+0x10/0x10 [ 14.449704] ? ktime_get_ts64+0x86/0x230 [ 14.449729] kunit_try_run_case+0x1a5/0x480 [ 14.449754] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.449777] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 14.449813] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.449877] ? __kthread_parkme+0x82/0x180 [ 14.449901] ? preempt_count_sub+0x50/0x80 [ 14.449925] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.449950] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.449975] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.450001] kthread+0x337/0x6f0 [ 14.450020] ? trace_preempt_on+0x20/0xc0 [ 14.450045] ? __pfx_kthread+0x10/0x10 [ 14.450065] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.450087] ? calculate_sigpending+0x7b/0xa0 [ 14.450113] ? __pfx_kthread+0x10/0x10 [ 14.450135] ret_from_fork+0x116/0x1d0 [ 14.450155] ? __pfx_kthread+0x10/0x10 [ 14.450176] ret_from_fork_asm+0x1a/0x30 [ 14.450208] </TASK> [ 14.450220] [ 14.459316] The buggy address belongs to the physical page: [ 14.459505] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102acc [ 14.460130] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 14.460491] flags: 0x200000000000040(head|node=0|zone=2) [ 14.460737] page_type: f8(unknown) [ 14.461051] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.461352] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.461675] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.462041] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.462279] head: 0200000000000002 ffffea00040ab301 00000000ffffffff 00000000ffffffff [ 14.462635] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 14.463211] page dumped because: kasan: bad access detected [ 14.463417] [ 14.463517] Memory state around the buggy address: [ 14.463744] ffff888102acbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.464157] ffff888102acbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.464389] >ffff888102acc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.464719] ^ [ 14.464894] ffff888102acc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.465417] ffff888102acc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.465649] ================================================================== [ 14.468994] ================================================================== [ 14.470373] BUG: KASAN: double-free in mempool_double_free_helper+0x184/0x370 [ 14.470742] Free of addr ffff888103a40000 by task kunit_try_catch/256 [ 14.471210] [ 14.471308] CPU: 0 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.471353] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.471364] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.471384] Call Trace: [ 14.471396] <TASK> [ 14.471411] dump_stack_lvl+0x73/0xb0 [ 14.471440] print_report+0xd1/0x650 [ 14.471463] ? __virt_addr_valid+0x1db/0x2d0 [ 14.471487] ? kasan_addr_to_slab+0x11/0xa0 [ 14.471507] ? mempool_double_free_helper+0x184/0x370 [ 14.471532] kasan_report_invalid_free+0x10a/0x130 [ 14.471557] ? mempool_double_free_helper+0x184/0x370 [ 14.471583] ? mempool_double_free_helper+0x184/0x370 [ 14.471618] __kasan_mempool_poison_pages+0x115/0x130 [ 14.471643] mempool_free+0x290/0x380 [ 14.471670] mempool_double_free_helper+0x184/0x370 [ 14.471694] ? __pfx_mempool_double_free_helper+0x10/0x10 [ 14.471719] ? update_load_avg+0x1be/0x21b0 [ 14.471746] ? finish_task_switch.isra.0+0x153/0x700 [ 14.471772] mempool_page_alloc_double_free+0xe8/0x140 [ 14.471798] ? __pfx_mempool_page_alloc_double_free+0x10/0x10 [ 14.471874] ? __pfx_mempool_alloc_pages+0x10/0x10 [ 14.471898] ? __pfx_mempool_free_pages+0x10/0x10 [ 14.471925] ? __pfx_read_tsc+0x10/0x10 [ 14.471946] ? ktime_get_ts64+0x86/0x230 [ 14.471970] kunit_try_run_case+0x1a5/0x480 [ 14.471995] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.472020] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.472044] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.472069] ? __kthread_parkme+0x82/0x180 [ 14.472091] ? preempt_count_sub+0x50/0x80 [ 14.472114] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.472138] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.472162] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.472189] kthread+0x337/0x6f0 [ 14.472208] ? trace_preempt_on+0x20/0xc0 [ 14.472233] ? __pfx_kthread+0x10/0x10 [ 14.472253] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.472275] ? calculate_sigpending+0x7b/0xa0 [ 14.472299] ? __pfx_kthread+0x10/0x10 [ 14.472320] ret_from_fork+0x116/0x1d0 [ 14.472338] ? __pfx_kthread+0x10/0x10 [ 14.472358] ret_from_fork_asm+0x1a/0x30 [ 14.472389] </TASK> [ 14.472399] [ 14.482434] The buggy address belongs to the physical page: [ 14.482730] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a40 [ 14.482982] flags: 0x200000000000000(node=0|zone=2) [ 14.484985] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000 [ 14.485234] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 14.485453] page dumped because: kasan: bad access detected [ 14.485633] [ 14.485701] Memory state around the buggy address: [ 14.486121] ffff888103a3ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.486336] ffff888103a3ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.486543] >ffff888103a40000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.486810] ^ [ 14.486994] ffff888103a40080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.487311] ffff888103a40100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 14.487526] ==================================================================