Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.341297] ================================================================== [ 19.341383] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 19.341475] Read of size 1 at addr fff00000c656a973 by task kunit_try_catch/221 [ 19.341527] [ 19.341572] CPU: 0 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.341660] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.341689] Hardware name: linux,dummy-virt (DT) [ 19.341722] Call trace: [ 19.341750] show_stack+0x20/0x38 (C) [ 19.341802] dump_stack_lvl+0x8c/0xd0 [ 19.341855] print_report+0x118/0x608 [ 19.341904] kasan_report+0xdc/0x128 [ 19.341949] __asan_report_load1_noabort+0x20/0x30 [ 19.342001] mempool_oob_right_helper+0x2ac/0x2f0 [ 19.342050] mempool_kmalloc_oob_right+0xc4/0x120 [ 19.342099] kunit_try_run_case+0x170/0x3f0 [ 19.342152] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.342206] kthread+0x328/0x630 [ 19.342250] ret_from_fork+0x10/0x20 [ 19.342301] [ 19.342320] Allocated by task 221: [ 19.342350] kasan_save_stack+0x3c/0x68 [ 19.342394] kasan_save_track+0x20/0x40 [ 19.342438] kasan_save_alloc_info+0x40/0x58 [ 19.342489] __kasan_mempool_unpoison_object+0x11c/0x180 [ 19.342534] remove_element+0x130/0x1f8 [ 19.342574] mempool_alloc_preallocated+0x58/0xc0 [ 19.342616] mempool_oob_right_helper+0x98/0x2f0 [ 19.342657] mempool_kmalloc_oob_right+0xc4/0x120 [ 19.342700] kunit_try_run_case+0x170/0x3f0 [ 19.342740] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.342784] kthread+0x328/0x630 [ 19.342817] ret_from_fork+0x10/0x20 [ 19.342855] [ 19.342875] The buggy address belongs to the object at fff00000c656a900 [ 19.342875] which belongs to the cache kmalloc-128 of size 128 [ 19.342938] The buggy address is located 0 bytes to the right of [ 19.342938] allocated 115-byte region [fff00000c656a900, fff00000c656a973) [ 19.343020] [ 19.343042] The buggy address belongs to the physical page: [ 19.343105] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10656a [ 19.343167] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.343224] page_type: f5(slab) [ 19.343271] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.343325] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.343369] page dumped because: kasan: bad access detected [ 19.343402] [ 19.343439] Memory state around the buggy address: [ 19.343484] fff00000c656a800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.343529] fff00000c656a880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.343574] >fff00000c656a900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 19.343614] ^ [ 19.343655] fff00000c656a980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.343698] fff00000c656aa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 19.343739] ================================================================== [ 19.349250] ================================================================== [ 19.349313] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 19.349368] Read of size 1 at addr fff00000c7846001 by task kunit_try_catch/223 [ 19.349420] [ 19.349465] CPU: 0 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.349548] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.349575] Hardware name: linux,dummy-virt (DT) [ 19.349606] Call trace: [ 19.349630] show_stack+0x20/0x38 (C) [ 19.350052] dump_stack_lvl+0x8c/0xd0 [ 19.350142] print_report+0x118/0x608 [ 19.350197] kasan_report+0xdc/0x128 [ 19.350356] __asan_report_load1_noabort+0x20/0x30 [ 19.350409] mempool_oob_right_helper+0x2ac/0x2f0 [ 19.350477] mempool_kmalloc_large_oob_right+0xc4/0x120 [ 19.351287] kunit_try_run_case+0x170/0x3f0 [ 19.351417] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.351594] kthread+0x328/0x630 [ 19.351656] ret_from_fork+0x10/0x20 [ 19.351703] [ 19.351726] The buggy address belongs to the physical page: [ 19.351762] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107844 [ 19.351821] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.351872] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.351928] page_type: f8(unknown) [ 19.351968] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.352022] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.352075] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 19.352127] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 19.352180] head: 0bfffe0000000002 ffffc1ffc31e1101 00000000ffffffff 00000000ffffffff [ 19.352529] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 19.352577] page dumped because: kasan: bad access detected [ 19.353411] [ 19.353887] Memory state around the buggy address: [ 19.354141] fff00000c7845f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.354327] fff00000c7845f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.354378] >fff00000c7846000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 19.354425] ^ [ 19.354777] fff00000c7846080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 19.354899] fff00000c7846100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 19.354939] ================================================================== [ 19.370875] ================================================================== [ 19.371040] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x2ac/0x2f0 [ 19.371121] Read of size 1 at addr fff00000c79ad2bb by task kunit_try_catch/225 [ 19.371304] [ 19.371338] CPU: 0 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.371420] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.371455] Hardware name: linux,dummy-virt (DT) [ 19.371572] Call trace: [ 19.371664] show_stack+0x20/0x38 (C) [ 19.371872] dump_stack_lvl+0x8c/0xd0 [ 19.372176] print_report+0x118/0x608 [ 19.372275] kasan_report+0xdc/0x128 [ 19.372415] __asan_report_load1_noabort+0x20/0x30 [ 19.372575] mempool_oob_right_helper+0x2ac/0x2f0 [ 19.372797] mempool_slab_oob_right+0xc0/0x118 [ 19.372867] kunit_try_run_case+0x170/0x3f0 [ 19.373146] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.373474] kthread+0x328/0x630 [ 19.373529] ret_from_fork+0x10/0x20 [ 19.373652] [ 19.373786] Allocated by task 225: [ 19.373817] kasan_save_stack+0x3c/0x68 [ 19.373871] kasan_save_track+0x20/0x40 [ 19.374211] kasan_save_alloc_info+0x40/0x58 [ 19.374496] __kasan_mempool_unpoison_object+0xbc/0x180 [ 19.374821] remove_element+0x16c/0x1f8 [ 19.374942] mempool_alloc_preallocated+0x58/0xc0 [ 19.375191] mempool_oob_right_helper+0x98/0x2f0 [ 19.375237] mempool_slab_oob_right+0xc0/0x118 [ 19.375276] kunit_try_run_case+0x170/0x3f0 [ 19.375315] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.375361] kthread+0x328/0x630 [ 19.375600] ret_from_fork+0x10/0x20 [ 19.376032] [ 19.376055] The buggy address belongs to the object at fff00000c79ad240 [ 19.376055] which belongs to the cache test_cache of size 123 [ 19.376211] The buggy address is located 0 bytes to the right of [ 19.376211] allocated 123-byte region [fff00000c79ad240, fff00000c79ad2bb) [ 19.376592] [ 19.377010] The buggy address belongs to the physical page: [ 19.377147] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079ad [ 19.377600] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.377668] page_type: f5(slab) [ 19.377711] raw: 0bfffe0000000000 fff00000c3e83a00 dead000000000122 0000000000000000 [ 19.377765] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 19.378317] page dumped because: kasan: bad access detected [ 19.378489] [ 19.378509] Memory state around the buggy address: [ 19.378546] fff00000c79ad180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.378604] fff00000c79ad200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 19.378735] >fff00000c79ad280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 19.378780] ^ [ 19.378817] fff00000c79ad300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.378863] fff00000c79ad380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.378904] ==================================================================
[ 12.862385] ================================================================== [ 12.862857] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.863458] Read of size 1 at addr ffff88810312f673 by task kunit_try_catch/238 [ 12.863981] [ 12.864092] CPU: 1 UID: 0 PID: 238 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.864144] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.864157] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.864497] Call Trace: [ 12.864520] <TASK> [ 12.864540] dump_stack_lvl+0x73/0xb0 [ 12.864574] print_report+0xd1/0x650 [ 12.864599] ? __virt_addr_valid+0x1db/0x2d0 [ 12.864624] ? mempool_oob_right_helper+0x318/0x380 [ 12.864648] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.864671] ? mempool_oob_right_helper+0x318/0x380 [ 12.864694] kasan_report+0x141/0x180 [ 12.864715] ? mempool_oob_right_helper+0x318/0x380 [ 12.864743] __asan_report_load1_noabort+0x18/0x20 [ 12.864766] mempool_oob_right_helper+0x318/0x380 [ 12.864790] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.864814] ? __kasan_check_write+0x18/0x20 [ 12.864833] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.864856] ? finish_task_switch.isra.0+0x153/0x700 [ 12.864881] mempool_kmalloc_oob_right+0xf2/0x150 [ 12.864903] ? __pfx_mempool_kmalloc_oob_right+0x10/0x10 [ 12.864928] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.864952] ? __pfx_mempool_kfree+0x10/0x10 [ 12.864976] ? __pfx_read_tsc+0x10/0x10 [ 12.864998] ? ktime_get_ts64+0x86/0x230 [ 12.865022] kunit_try_run_case+0x1a5/0x480 [ 12.865121] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.865145] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.865169] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.865191] ? __kthread_parkme+0x82/0x180 [ 12.865213] ? preempt_count_sub+0x50/0x80 [ 12.865235] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.865257] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.865280] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.865302] kthread+0x337/0x6f0 [ 12.865321] ? trace_preempt_on+0x20/0xc0 [ 12.865345] ? __pfx_kthread+0x10/0x10 [ 12.865365] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.865385] ? calculate_sigpending+0x7b/0xa0 [ 12.865409] ? __pfx_kthread+0x10/0x10 [ 12.865430] ret_from_fork+0x116/0x1d0 [ 12.865448] ? __pfx_kthread+0x10/0x10 [ 12.865468] ret_from_fork_asm+0x1a/0x30 [ 12.865498] </TASK> [ 12.865512] [ 12.877442] Allocated by task 238: [ 12.877827] kasan_save_stack+0x45/0x70 [ 12.878074] kasan_save_track+0x18/0x40 [ 12.878561] kasan_save_alloc_info+0x3b/0x50 [ 12.878787] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 12.879320] remove_element+0x11e/0x190 [ 12.879515] mempool_alloc_preallocated+0x4d/0x90 [ 12.879873] mempool_oob_right_helper+0x8a/0x380 [ 12.880249] mempool_kmalloc_oob_right+0xf2/0x150 [ 12.880495] kunit_try_run_case+0x1a5/0x480 [ 12.880822] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.881101] kthread+0x337/0x6f0 [ 12.881463] ret_from_fork+0x116/0x1d0 [ 12.881716] ret_from_fork_asm+0x1a/0x30 [ 12.881926] [ 12.882240] The buggy address belongs to the object at ffff88810312f600 [ 12.882240] which belongs to the cache kmalloc-128 of size 128 [ 12.882735] The buggy address is located 0 bytes to the right of [ 12.882735] allocated 115-byte region [ffff88810312f600, ffff88810312f673) [ 12.883701] [ 12.883789] The buggy address belongs to the physical page: [ 12.884325] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10312f [ 12.884772] flags: 0x200000000000000(node=0|zone=2) [ 12.885001] page_type: f5(slab) [ 12.885191] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.885511] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.885788] page dumped because: kasan: bad access detected [ 12.886400] [ 12.886503] Memory state around the buggy address: [ 12.886692] ffff88810312f500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.887230] ffff88810312f580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.887647] >ffff88810312f600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 12.888042] ^ [ 12.888522] ffff88810312f680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.888830] ffff88810312f700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 12.889625] ================================================================== [ 12.915549] ================================================================== [ 12.916064] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.916466] Read of size 1 at addr ffff88810311f2bb by task kunit_try_catch/242 [ 12.916865] [ 12.916986] CPU: 0 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.917040] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.917051] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.917082] Call Trace: [ 12.917093] <TASK> [ 12.917108] dump_stack_lvl+0x73/0xb0 [ 12.917136] print_report+0xd1/0x650 [ 12.917169] ? __virt_addr_valid+0x1db/0x2d0 [ 12.917189] ? mempool_oob_right_helper+0x318/0x380 [ 12.917231] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.917253] ? mempool_oob_right_helper+0x318/0x380 [ 12.917275] kasan_report+0x141/0x180 [ 12.917296] ? mempool_oob_right_helper+0x318/0x380 [ 12.917369] __asan_report_load1_noabort+0x18/0x20 [ 12.917408] mempool_oob_right_helper+0x318/0x380 [ 12.917433] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.917458] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.917478] ? finish_task_switch.isra.0+0x153/0x700 [ 12.917502] mempool_slab_oob_right+0xed/0x140 [ 12.917526] ? __pfx_mempool_slab_oob_right+0x10/0x10 [ 12.917551] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 12.917570] ? __pfx_mempool_free_slab+0x10/0x10 [ 12.917592] ? __pfx_read_tsc+0x10/0x10 [ 12.917612] ? ktime_get_ts64+0x86/0x230 [ 12.917634] kunit_try_run_case+0x1a5/0x480 [ 12.917668] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.917688] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.917711] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.917743] ? __kthread_parkme+0x82/0x180 [ 12.917763] ? preempt_count_sub+0x50/0x80 [ 12.917786] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.917809] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.917832] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.917854] kthread+0x337/0x6f0 [ 12.917873] ? trace_preempt_on+0x20/0xc0 [ 12.917896] ? __pfx_kthread+0x10/0x10 [ 12.917915] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.917935] ? calculate_sigpending+0x7b/0xa0 [ 12.917959] ? __pfx_kthread+0x10/0x10 [ 12.917979] ret_from_fork+0x116/0x1d0 [ 12.917996] ? __pfx_kthread+0x10/0x10 [ 12.918017] ret_from_fork_asm+0x1a/0x30 [ 12.918108] </TASK> [ 12.918121] [ 12.931841] Allocated by task 242: [ 12.931977] kasan_save_stack+0x45/0x70 [ 12.932262] kasan_save_track+0x18/0x40 [ 12.932404] kasan_save_alloc_info+0x3b/0x50 [ 12.932613] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 12.932874] remove_element+0x11e/0x190 [ 12.933055] mempool_alloc_preallocated+0x4d/0x90 [ 12.933287] mempool_oob_right_helper+0x8a/0x380 [ 12.933445] mempool_slab_oob_right+0xed/0x140 [ 12.933680] kunit_try_run_case+0x1a5/0x480 [ 12.933994] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.934286] kthread+0x337/0x6f0 [ 12.934441] ret_from_fork+0x116/0x1d0 [ 12.934628] ret_from_fork_asm+0x1a/0x30 [ 12.934803] [ 12.934901] The buggy address belongs to the object at ffff88810311f240 [ 12.934901] which belongs to the cache test_cache of size 123 [ 12.935413] The buggy address is located 0 bytes to the right of [ 12.935413] allocated 123-byte region [ffff88810311f240, ffff88810311f2bb) [ 12.936252] [ 12.936371] The buggy address belongs to the physical page: [ 12.936618] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10311f [ 12.936911] flags: 0x200000000000000(node=0|zone=2) [ 12.937372] page_type: f5(slab) [ 12.937557] raw: 0200000000000000 ffff88810311c000 dead000000000122 0000000000000000 [ 12.937856] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 12.938292] page dumped because: kasan: bad access detected [ 12.938494] [ 12.938589] Memory state around the buggy address: [ 12.938847] ffff88810311f180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.939203] ffff88810311f200: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 [ 12.939663] >ffff88810311f280: 00 00 00 00 00 00 00 03 fc fc fc fc fc fc fc fc [ 12.939951] ^ [ 12.940354] ffff88810311f300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.940662] ffff88810311f380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.940931] ================================================================== [ 12.892815] ================================================================== [ 12.893561] BUG: KASAN: slab-out-of-bounds in mempool_oob_right_helper+0x318/0x380 [ 12.893847] Read of size 1 at addr ffff8881029ce001 by task kunit_try_catch/240 [ 12.894191] [ 12.894301] CPU: 0 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.894434] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.894449] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.894471] Call Trace: [ 12.894493] <TASK> [ 12.894510] dump_stack_lvl+0x73/0xb0 [ 12.894541] print_report+0xd1/0x650 [ 12.894574] ? __virt_addr_valid+0x1db/0x2d0 [ 12.894598] ? mempool_oob_right_helper+0x318/0x380 [ 12.894619] ? kasan_addr_to_slab+0x11/0xa0 [ 12.894639] ? mempool_oob_right_helper+0x318/0x380 [ 12.894662] kasan_report+0x141/0x180 [ 12.894682] ? mempool_oob_right_helper+0x318/0x380 [ 12.894718] __asan_report_load1_noabort+0x18/0x20 [ 12.894742] mempool_oob_right_helper+0x318/0x380 [ 12.894775] ? __pfx_mempool_oob_right_helper+0x10/0x10 [ 12.894799] ? __kasan_check_write+0x18/0x20 [ 12.894818] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.894838] ? finish_task_switch.isra.0+0x153/0x700 [ 12.894863] mempool_kmalloc_large_oob_right+0xf2/0x150 [ 12.894887] ? __pfx_mempool_kmalloc_large_oob_right+0x10/0x10 [ 12.894913] ? __pfx_mempool_kmalloc+0x10/0x10 [ 12.894936] ? __pfx_mempool_kfree+0x10/0x10 [ 12.894961] ? __pfx_read_tsc+0x10/0x10 [ 12.894984] ? ktime_get_ts64+0x86/0x230 [ 12.895007] kunit_try_run_case+0x1a5/0x480 [ 12.895041] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.895077] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.895099] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.895121] ? __kthread_parkme+0x82/0x180 [ 12.895205] ? preempt_count_sub+0x50/0x80 [ 12.895230] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.895254] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.895277] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.895299] kthread+0x337/0x6f0 [ 12.895328] ? trace_preempt_on+0x20/0xc0 [ 12.895351] ? __pfx_kthread+0x10/0x10 [ 12.895371] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.895403] ? calculate_sigpending+0x7b/0xa0 [ 12.895426] ? __pfx_kthread+0x10/0x10 [ 12.895447] ret_from_fork+0x116/0x1d0 [ 12.895464] ? __pfx_kthread+0x10/0x10 [ 12.895484] ret_from_fork_asm+0x1a/0x30 [ 12.895514] </TASK> [ 12.895525] [ 12.904722] The buggy address belongs to the physical page: [ 12.904977] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029cc [ 12.905477] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.905820] flags: 0x200000000000040(head|node=0|zone=2) [ 12.906153] page_type: f8(unknown) [ 12.906313] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.906608] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.906901] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.907336] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.907654] head: 0200000000000002 ffffea00040a7301 00000000ffffffff 00000000ffffffff [ 12.907886] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.908168] page dumped because: kasan: bad access detected [ 12.908430] [ 12.908529] Memory state around the buggy address: [ 12.908730] ffff8881029cdf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.908948] ffff8881029cdf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.909598] >ffff8881029ce000: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.909916] ^ [ 12.910049] ffff8881029ce080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.910548] ffff8881029ce100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.910890] ==================================================================