Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.289808] ================================================================== [ 30.290476] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 30.290667] Read of size 1 at addr fff00000c779c2bb by task kunit_try_catch/227 [ 30.290813] [ 30.290907] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 30.291158] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.291241] Hardware name: linux,dummy-virt (DT) [ 30.291338] Call trace: [ 30.292013] show_stack+0x20/0x38 (C) [ 30.292816] dump_stack_lvl+0x8c/0xd0 [ 30.293083] print_report+0x118/0x608 [ 30.293240] kasan_report+0xdc/0x128 [ 30.293370] __asan_report_load1_noabort+0x20/0x30 [ 30.293540] mempool_oob_right_helper+0x2ac/0x2f0 [ 30.293813] mempool_slab_oob_right+0xc0/0x118 [ 30.294475] kunit_try_run_case+0x170/0x3f0 [ 30.294778] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.295044] kthread+0x328/0x630 [ 30.295218] ret_from_fork+0x10/0x20 [ 30.295855] [ 30.296049] Allocated by task 227: [ 30.296161] kasan_save_stack+0x3c/0x68 [ 30.296402] kasan_save_track+0x20/0x40 [ 30.296944] kasan_save_alloc_info+0x40/0x58 [ 30.297087] __kasan_mempool_unpoison_object+0xbc/0x180 [ 30.297218] remove_element+0x16c/0x1f8 [ 30.297420] mempool_alloc_preallocated+0x58/0xc0 [ 30.297710] mempool_oob_right_helper+0x98/0x2f0 [ 30.297972] mempool_slab_oob_right+0xc0/0x118 [ 30.298204] kunit_try_run_case+0x170/0x3f0 [ 30.298341] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.298492] kthread+0x328/0x630 [ 30.299053] ret_from_fork+0x10/0x20 [ 30.299208] [ 30.299270] The buggy address belongs to the object at fff00000c779c240 [ 30.299270] which belongs to the cache test_cache of size 123 [ 30.299535] The buggy address is located 0 bytes to the right of [ 30.299535] allocated 123-byte region [fff00000c779c240, fff00000c779c2bb) [ 30.300352] [ 30.300552] The buggy address belongs to the physical page: [ 30.300674] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10779c [ 30.300946] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.301093] page_type: f5(slab) [ 30.301192] raw: 0bfffe0000000000 fff00000c11fdb40 dead000000000122 0000000000000000 [ 30.301501] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 30.301644] page dumped because: kasan: bad access detected [ 30.301959] [ 30.302043] Memory state around the buggy address: [ 30.303576] fff00000c779c180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.303742] fff00000c779c200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 30.303883] >fff00000c779c280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 30.303989] ^ [ 30.304074] fff00000c779c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.304178] fff00000c779c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.304286] ================================================================== [ 30.251703] ================================================================== [ 30.251909] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 30.252108] Read of size 1 at addr fff00000c788e001 by task kunit_try_catch/225 [ 30.252714] [ 30.252810] CPU: 0 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 30.253366] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.253461] Hardware name: linux,dummy-virt (DT) [ 30.253554] Call trace: [ 30.253620] show_stack+0x20/0x38 (C) [ 30.254044] dump_stack_lvl+0x8c/0xd0 [ 30.254251] print_report+0x118/0x608 [ 30.254436] kasan_report+0xdc/0x128 [ 30.254619] __asan_report_load1_noabort+0x20/0x30 [ 30.254780] mempool_oob_right_helper+0x2ac/0x2f0 [ 30.254938] mempool_kmalloc_large_oob_right+0xc4/0x120 [ 30.255096] kunit_try_run_case+0x170/0x3f0 [ 30.255246] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.255414] kthread+0x328/0x630 [ 30.255558] ret_from_fork+0x10/0x20 [ 30.256030] [ 30.256159] The buggy address belongs to the physical page: [ 30.256578] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10788c [ 30.256840] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 30.256957] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 30.257105] page_type: f8(unknown) [ 30.257204] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 30.257329] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 30.257471] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 30.257605] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 30.258124] head: 0bfffe0000000002 ffffc1ffc31e2301 00000000ffffffff 00000000ffffffff [ 30.258326] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 30.258497] page dumped because: kasan: bad access detected [ 30.258638] [ 30.258709] Memory state around the buggy address: [ 30.258841] fff00000c788df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.258974] fff00000c788df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.259136] >fff00000c788e000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 30.259297] ^ [ 30.259426] fff00000c788e080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 30.259627] fff00000c788e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 30.259776] ================================================================== [ 30.219328] ================================================================== [ 30.219524] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 30.219639] Read of size 1 at addr fff00000c4621d73 by task kunit_try_catch/223 [ 30.219712] [ 30.219771] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 30.219896] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.219990] Hardware name: linux,dummy-virt (DT) [ 30.220078] Call trace: [ 30.220142] show_stack+0x20/0x38 (C) [ 30.220289] dump_stack_lvl+0x8c/0xd0 [ 30.220422] print_report+0x118/0x608 [ 30.220520] kasan_report+0xdc/0x128 [ 30.220587] __asan_report_load1_noabort+0x20/0x30 [ 30.220659] mempool_oob_right_helper+0x2ac/0x2f0 [ 30.220732] mempool_kmalloc_oob_right+0xc4/0x120 [ 30.220805] kunit_try_run_case+0x170/0x3f0 [ 30.220879] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.220953] kthread+0x328/0x630 [ 30.221018] ret_from_fork+0x10/0x20 [ 30.221089] [ 30.221116] Allocated by task 223: [ 30.221158] kasan_save_stack+0x3c/0x68 [ 30.221216] kasan_save_track+0x20/0x40 [ 30.221271] kasan_save_alloc_info+0x40/0x58 [ 30.221324] __kasan_mempool_unpoison_object+0x11c/0x180 [ 30.221385] remove_element+0x130/0x1f8 [ 30.221441] mempool_alloc_preallocated+0x58/0xc0 [ 30.221521] mempool_oob_right_helper+0x98/0x2f0 [ 30.221581] mempool_kmalloc_oob_right+0xc4/0x120 [ 30.221638] kunit_try_run_case+0x170/0x3f0 [ 30.221695] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.221759] kthread+0x328/0x630 [ 30.221809] ret_from_fork+0x10/0x20 [ 30.221862] [ 30.221890] The buggy address belongs to the object at fff00000c4621d00 [ 30.221890] which belongs to the cache kmalloc-128 of size 128 [ 30.221972] The buggy address is located 0 bytes to the right of [ 30.221972] allocated 115-byte region [fff00000c4621d00, fff00000c4621d73) [ 30.222061] [ 30.222091] The buggy address belongs to the physical page: [ 30.222139] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104621 [ 30.222215] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.222289] page_type: f5(slab) [ 30.222345] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 30.222418] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.222494] page dumped because: kasan: bad access detected [ 30.222537] [ 30.222565] Memory state around the buggy address: [ 30.222610] fff00000c4621c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.222671] fff00000c4621c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.222732] >fff00000c4621d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 30.222786] ^ [ 30.222843] fff00000c4621d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.222902] fff00000c4621e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 30.222957] ==================================================================
[ 14.107458] ================================================================== [ 14.107952] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 14.108372] Read of size 1 at addr ffff888103922001 by task kunit_try_catch/242 [ 14.108694] [ 14.108829] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 14.108882] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.108946] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.108968] Call Trace: [ 14.108983] <TASK> [ 14.109001] dump_stack_lvl+0x73/0xb0 [ 14.109033] print_report+0xd1/0x650 [ 14.109056] ? __virt_addr_valid+0x1db/0x2d0 [ 14.109079] ? mempool_oob_right_helper+0x318/0x380 [ 14.109102] ? kasan_addr_to_slab+0x11/0xa0 [ 14.109123] ? mempool_oob_right_helper+0x318/0x380 [ 14.109147] kasan_report+0x141/0x180 [ 14.109169] ? mempool_oob_right_helper+0x318/0x380 [ 14.109197] __asan_report_load1_noabort+0x18/0x20 [ 14.109219] mempool_oob_right_helper+0x318/0x380 [ 14.109244] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 14.109268] ? dequeue_entities+0x852/0x1740 [ 14.109293] ? finish_task_switch.isra.0+0x153/0x700 [ 14.109333] mempool_kmalloc_large_oob_right+0xf2/0x150 [ 14.109357] ? __pfx_mempool_kmalloc_large_oob_right+0x10/0x10 [ 14.109382] ? dequeue_task_fair+0x166/0x4e0 [ 14.109404] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.109424] ? __pfx_mempool_kfree+0x10/0x10 [ 14.109455] ? __pfx_read_tsc+0x10/0x10 [ 14.109476] ? ktime_get_ts64+0x86/0x230 [ 14.109502] kunit_try_run_case+0x1a5/0x480 [ 14.109526] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.109547] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.109571] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.109593] ? __kthread_parkme+0x82/0x180 [ 14.109615] ? preempt_count_sub+0x50/0x80 [ 14.109639] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.109662] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.109684] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.109707] kthread+0x337/0x6f0 [ 14.109723] ? trace_preempt_on+0x20/0xc0 [ 14.109747] ? __pfx_kthread+0x10/0x10 [ 14.109764] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.109785] ? calculate_sigpending+0x7b/0xa0 [ 14.109808] ? __pfx_kthread+0x10/0x10 [ 14.109826] ret_from_fork+0x41/0x80 [ 14.109846] ? __pfx_kthread+0x10/0x10 [ 14.109864] ret_from_fork_asm+0x1a/0x30 [ 14.109894] </TASK> [ 14.109906] [ 14.118533] The buggy address belongs to the physical page: [ 14.118843] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103920 [ 14.119314] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 14.119616] flags: 0x200000000000040(head|node=0|zone=2) [ 14.119841] page_type: f8(unknown) [ 14.120100] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.120379] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.120719] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 14.121114] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 14.121452] head: 0200000000000002 ffffea00040e4801 00000000ffffffff 00000000ffffffff [ 14.121804] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 14.122243] page dumped because: kasan: bad access detected [ 14.122557] [ 14.122655] Memory state around the buggy address: [ 14.122850] ffff888103921f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.123155] ffff888103921f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.123428] >ffff888103922000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 14.123744] ^ [ 14.123934] ffff888103922080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 14.124281] ffff888103922100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 14.124731] ================================================================== [ 14.077590] ================================================================== [ 14.078362] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 14.078741] Read of size 1 at addr ffff888102a2da73 by task kunit_try_catch/240 [ 14.079511] [ 14.079773] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 14.079854] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.079868] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.079892] Call Trace: [ 14.079907] <TASK> [ 14.079926] dump_stack_lvl+0x73/0xb0 [ 14.079961] print_report+0xd1/0x650 [ 14.080062] ? __virt_addr_valid+0x1db/0x2d0 [ 14.080092] ? mempool_oob_right_helper+0x318/0x380 [ 14.080115] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.080137] ? mempool_oob_right_helper+0x318/0x380 [ 14.080161] kasan_report+0x141/0x180 [ 14.080184] ? mempool_oob_right_helper+0x318/0x380 [ 14.080212] __asan_report_load1_noabort+0x18/0x20 [ 14.080232] mempool_oob_right_helper+0x318/0x380 [ 14.080257] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 14.080280] ? dequeue_entities+0x852/0x1740 [ 14.080323] ? finish_task_switch.isra.0+0x153/0x700 [ 14.080351] mempool_kmalloc_oob_right+0xf2/0x150 [ 14.080374] ? __pfx_mempool_kmalloc_oob_right+0x10/0x10 [ 14.080397] ? dequeue_task_fair+0x166/0x4e0 [ 14.080419] ? __pfx_mempool_kmalloc+0x10/0x10 [ 14.080463] ? __pfx_mempool_kfree+0x10/0x10 [ 14.080485] ? __pfx_read_tsc+0x10/0x10 [ 14.080506] ? ktime_get_ts64+0x86/0x230 [ 14.080533] kunit_try_run_case+0x1a5/0x480 [ 14.080558] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.080580] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.080605] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.080628] ? __kthread_parkme+0x82/0x180 [ 14.080651] ? preempt_count_sub+0x50/0x80 [ 14.080674] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.080698] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.080720] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.080742] kthread+0x337/0x6f0 [ 14.080759] ? trace_preempt_on+0x20/0xc0 [ 14.080784] ? __pfx_kthread+0x10/0x10 [ 14.080802] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.080822] ? calculate_sigpending+0x7b/0xa0 [ 14.080845] ? __pfx_kthread+0x10/0x10 [ 14.080864] ret_from_fork+0x41/0x80 [ 14.080884] ? __pfx_kthread+0x10/0x10 [ 14.080903] ret_from_fork_asm+0x1a/0x30 [ 14.080935] </TASK> [ 14.080947] [ 14.093604] Allocated by task 240: [ 14.094064] kasan_save_stack+0x45/0x70 [ 14.094292] kasan_save_track+0x18/0x40 [ 14.094698] kasan_save_alloc_info+0x3b/0x50 [ 14.095178] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 14.095469] remove_element+0x11e/0x190 [ 14.095620] mempool_alloc_preallocated+0x4d/0x90 [ 14.095864] mempool_oob_right_helper+0x8a/0x380 [ 14.096064] mempool_kmalloc_oob_right+0xf2/0x150 [ 14.096373] kunit_try_run_case+0x1a5/0x480 [ 14.096574] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.096855] kthread+0x337/0x6f0 [ 14.097048] ret_from_fork+0x41/0x80 [ 14.097273] ret_from_fork_asm+0x1a/0x30 [ 14.097492] [ 14.097570] The buggy address belongs to the object at ffff888102a2da00 [ 14.097570] which belongs to the cache kmalloc-128 of size 128 [ 14.098068] The buggy address is located 0 bytes to the right of [ 14.098068] allocated 115-byte region [ffff888102a2da00, ffff888102a2da73) [ 14.098721] [ 14.098842] The buggy address belongs to the physical page: [ 14.099101] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a2d [ 14.099676] flags: 0x200000000000000(node=0|zone=2) [ 14.100098] page_type: f5(slab) [ 14.100263] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 14.100576] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 14.100997] page dumped because: kasan: bad access detected [ 14.101384] [ 14.101508] Memory state around the buggy address: [ 14.101751] ffff888102a2d900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.102130] ffff888102a2d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.102402] >ffff888102a2da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 14.102752] ^ [ 14.103063] ffff888102a2da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.103651] ffff888102a2db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 14.103935] ================================================================== [ 14.129620] ================================================================== [ 14.130548] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 14.130871] Read of size 1 at addr ffff888102a472bb by task kunit_try_catch/244 [ 14.131206] [ 14.131399] CPU: 1 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 14.131449] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.131462] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.131484] Call Trace: [ 14.131496] <TASK> [ 14.131513] dump_stack_lvl+0x73/0xb0 [ 14.131543] print_report+0xd1/0x650 [ 14.131566] ? __virt_addr_valid+0x1db/0x2d0 [ 14.131588] ? mempool_oob_right_helper+0x318/0x380 [ 14.131612] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.131634] ? mempool_oob_right_helper+0x318/0x380 [ 14.131658] kasan_report+0x141/0x180 [ 14.131681] ? mempool_oob_right_helper+0x318/0x380 [ 14.131710] __asan_report_load1_noabort+0x18/0x20 [ 14.131731] mempool_oob_right_helper+0x318/0x380 [ 14.131756] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 14.131779] ? update_load_avg+0x1be/0x21b0 [ 14.131804] ? finish_task_switch.isra.0+0x153/0x700 [ 14.131831] mempool_slab_oob_right+0xed/0x140 [ 14.131852] ? __pfx_mempool_slab_oob_right+0x10/0x10 [ 14.131872] ? dequeue_task_fair+0x156/0x4e0 [ 14.131895] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 14.131916] ? __pfx_mempool_free_slab+0x10/0x10 [ 14.131939] ? __pfx_read_tsc+0x10/0x10 [ 14.131959] ? ktime_get_ts64+0x86/0x230 [ 14.131998] kunit_try_run_case+0x1a5/0x480 [ 14.132022] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.132044] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.132068] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.132091] ? __kthread_parkme+0x82/0x180 [ 14.132112] ? preempt_count_sub+0x50/0x80 [ 14.132137] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.132159] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.132182] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.132205] kthread+0x337/0x6f0 [ 14.132222] ? trace_preempt_on+0x20/0xc0 [ 14.132245] ? __pfx_kthread+0x10/0x10 [ 14.132263] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.132284] ? calculate_sigpending+0x7b/0xa0 [ 14.132318] ? __pfx_kthread+0x10/0x10 [ 14.132336] ret_from_fork+0x41/0x80 [ 14.132357] ? __pfx_kthread+0x10/0x10 [ 14.132376] ret_from_fork_asm+0x1a/0x30 [ 14.132407] </TASK> [ 14.132419] [ 14.141310] Allocated by task 244: [ 14.141516] kasan_save_stack+0x45/0x70 [ 14.141687] kasan_save_track+0x18/0x40 [ 14.141825] kasan_save_alloc_info+0x3b/0x50 [ 14.141970] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 14.142225] remove_element+0x11e/0x190 [ 14.142486] mempool_alloc_preallocated+0x4d/0x90 [ 14.142729] mempool_oob_right_helper+0x8a/0x380 [ 14.143022] mempool_slab_oob_right+0xed/0x140 [ 14.143181] kunit_try_run_case+0x1a5/0x480 [ 14.143400] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.143663] kthread+0x337/0x6f0 [ 14.143960] ret_from_fork+0x41/0x80 [ 14.144106] ret_from_fork_asm+0x1a/0x30 [ 14.144320] [ 14.144399] The buggy address belongs to the object at ffff888102a47240 [ 14.144399] which belongs to the cache test_cache of size 123 [ 14.144867] The buggy address is located 0 bytes to the right of [ 14.144867] allocated 123-byte region [ffff888102a47240, ffff888102a472bb) [ 14.145348] [ 14.145622] The buggy address belongs to the physical page: [ 14.145952] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a47 [ 14.146290] flags: 0x200000000000000(node=0|zone=2) [ 14.146575] page_type: f5(slab) [ 14.146735] raw: 0200000000000000 ffff8881020d6640 dead000000000122 0000000000000000 [ 14.147153] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 14.147407] page dumped because: kasan: bad access detected [ 14.147586] [ 14.147657] Memory state around the buggy address: [ 14.147814] ffff888102a47180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 14.148105] ffff888102a47200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 14.148438] >ffff888102a47280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 14.148829] ^ [ 14.149132] ffff888102a47300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.149665] ffff888102a47380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.150060] ==================================================================