Date
July 6, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 | |
| x86 |
[ 19.317499] ================================================================== [ 19.317595] BUG: KASAN: slab-use-after-free in kasan_strings+0x95c/0xb00 [ 19.317656] Read of size 1 at addr fff00000c77ad110 by task kunit_try_catch/260 [ 19.317727] [ 19.317759] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.317857] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.317886] Hardware name: linux,dummy-virt (DT) [ 19.317917] Call trace: [ 19.317942] show_stack+0x20/0x38 (C) [ 19.318004] dump_stack_lvl+0x8c/0xd0 [ 19.318104] print_report+0x118/0x608 [ 19.318315] kasan_report+0xdc/0x128 [ 19.318380] __asan_report_load1_noabort+0x20/0x30 [ 19.318547] kasan_strings+0x95c/0xb00 [ 19.318680] kunit_try_run_case+0x170/0x3f0 [ 19.318731] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.318811] kthread+0x328/0x630 [ 19.318852] ret_from_fork+0x10/0x20 [ 19.318900] [ 19.318929] Allocated by task 260: [ 19.319143] kasan_save_stack+0x3c/0x68 [ 19.319187] kasan_save_track+0x20/0x40 [ 19.319225] kasan_save_alloc_info+0x40/0x58 [ 19.319290] __kasan_kmalloc+0xd4/0xd8 [ 19.319329] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.319389] kasan_strings+0xc8/0xb00 [ 19.319425] kunit_try_run_case+0x170/0x3f0 [ 19.319465] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.319508] kthread+0x328/0x630 [ 19.319543] ret_from_fork+0x10/0x20 [ 19.319688] [ 19.319747] Freed by task 260: [ 19.319855] kasan_save_stack+0x3c/0x68 [ 19.319896] kasan_save_track+0x20/0x40 [ 19.319934] kasan_save_free_info+0x4c/0x78 [ 19.319987] __kasan_slab_free+0x6c/0x98 [ 19.320026] kfree+0x214/0x3c8 [ 19.320061] kasan_strings+0x24c/0xb00 [ 19.320110] kunit_try_run_case+0x170/0x3f0 [ 19.320192] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.320257] kthread+0x328/0x630 [ 19.320290] ret_from_fork+0x10/0x20 [ 19.320328] [ 19.320348] The buggy address belongs to the object at fff00000c77ad100 [ 19.320348] which belongs to the cache kmalloc-32 of size 32 [ 19.320503] The buggy address is located 16 bytes inside of [ 19.320503] freed 32-byte region [fff00000c77ad100, fff00000c77ad120) [ 19.320575] [ 19.320672] The buggy address belongs to the physical page: [ 19.320766] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077ad [ 19.320837] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.320956] page_type: f5(slab) [ 19.321011] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.321141] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.321269] page dumped because: kasan: bad access detected [ 19.321302] [ 19.321323] Memory state around the buggy address: [ 19.321363] fff00000c77ad000: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.321556] fff00000c77ad080: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.321601] >fff00000c77ad100: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 19.321670] ^ [ 19.321829] fff00000c77ad180: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.322233] fff00000c77ad200: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 19.322274] ==================================================================
[ 18.972447] ================================================================== [ 18.972503] BUG: KASAN: slab-use-after-free in kasan_strings+0x95c/0xb00 [ 18.972556] Read of size 1 at addr fff00000c76c8890 by task kunit_try_catch/260 [ 18.972980] [ 18.973105] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.973320] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.973405] Hardware name: linux,dummy-virt (DT) [ 18.973440] Call trace: [ 18.973471] show_stack+0x20/0x38 (C) [ 18.973524] dump_stack_lvl+0x8c/0xd0 [ 18.973739] print_report+0x118/0x608 [ 18.973963] kasan_report+0xdc/0x128 [ 18.974122] __asan_report_load1_noabort+0x20/0x30 [ 18.974293] kasan_strings+0x95c/0xb00 [ 18.974442] kunit_try_run_case+0x170/0x3f0 [ 18.974495] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.974550] kthread+0x328/0x630 [ 18.974928] ret_from_fork+0x10/0x20 [ 18.975168] [ 18.975258] Allocated by task 260: [ 18.975363] kasan_save_stack+0x3c/0x68 [ 18.975462] kasan_save_track+0x20/0x40 [ 18.975515] kasan_save_alloc_info+0x40/0x58 [ 18.975861] __kasan_kmalloc+0xd4/0xd8 [ 18.976003] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.976106] kasan_strings+0xc8/0xb00 [ 18.976264] kunit_try_run_case+0x170/0x3f0 [ 18.976362] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.976473] kthread+0x328/0x630 [ 18.976509] ret_from_fork+0x10/0x20 [ 18.976587] [ 18.976645] Freed by task 260: [ 18.976982] kasan_save_stack+0x3c/0x68 [ 18.977059] kasan_save_track+0x20/0x40 [ 18.977218] kasan_save_free_info+0x4c/0x78 [ 18.977359] __kasan_slab_free+0x6c/0x98 [ 18.977458] kfree+0x214/0x3c8 [ 18.977500] kasan_strings+0x24c/0xb00 [ 18.977693] kunit_try_run_case+0x170/0x3f0 [ 18.977953] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.978089] kthread+0x328/0x630 [ 18.978169] ret_from_fork+0x10/0x20 [ 18.978226] [ 18.978254] The buggy address belongs to the object at fff00000c76c8880 [ 18.978254] which belongs to the cache kmalloc-32 of size 32 [ 18.978452] The buggy address is located 16 bytes inside of [ 18.978452] freed 32-byte region [fff00000c76c8880, fff00000c76c88a0) [ 18.978989] [ 18.979072] The buggy address belongs to the physical page: [ 18.979199] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076c8 [ 18.979518] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.979630] page_type: f5(slab) [ 18.979699] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 18.979751] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 18.979841] page dumped because: kasan: bad access detected [ 18.979884] [ 18.979903] Memory state around the buggy address: [ 18.979958] fff00000c76c8780: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 18.980016] fff00000c76c8800: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 18.980062] >fff00000c76c8880: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 18.980104] ^ [ 18.980142] fff00000c76c8900: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 18.980187] fff00000c76c8980: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 18.980235] ==================================================================
[ 15.515337] ================================================================== [ 15.515968] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80 [ 15.516218] Read of size 1 at addr ffff888102ab8f90 by task kunit_try_catch/277 [ 15.516745] [ 15.516933] CPU: 0 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 15.517010] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.517030] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.517065] Call Trace: [ 15.517092] <TASK> [ 15.517160] dump_stack_lvl+0x73/0xb0 [ 15.517221] print_report+0xd1/0x650 [ 15.517262] ? __virt_addr_valid+0x1db/0x2d0 [ 15.517298] ? kasan_strings+0xcbc/0xe80 [ 15.517333] ? kasan_complete_mode_report_info+0x64/0x200 [ 15.517375] ? kasan_strings+0xcbc/0xe80 [ 15.517642] kasan_report+0x141/0x180 [ 15.517709] ? kasan_strings+0xcbc/0xe80 [ 15.517751] __asan_report_load1_noabort+0x18/0x20 [ 15.517801] kasan_strings+0xcbc/0xe80 [ 15.517848] ? trace_hardirqs_on+0x37/0xe0 [ 15.517894] ? __pfx_kasan_strings+0x10/0x10 [ 15.517934] ? finish_task_switch.isra.0+0x153/0x700 [ 15.517973] ? __switch_to+0x47/0xf50 [ 15.518018] ? __schedule+0x10cc/0x2b60 [ 15.518054] ? __pfx_read_tsc+0x10/0x10 [ 15.518092] ? ktime_get_ts64+0x86/0x230 [ 15.518175] kunit_try_run_case+0x1a5/0x480 [ 15.518203] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.518225] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.518248] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.518269] ? __kthread_parkme+0x82/0x180 [ 15.518289] ? preempt_count_sub+0x50/0x80 [ 15.518310] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.518331] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.518352] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.518373] kthread+0x337/0x6f0 [ 15.518390] ? trace_preempt_on+0x20/0xc0 [ 15.518411] ? __pfx_kthread+0x10/0x10 [ 15.518430] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.518448] ? calculate_sigpending+0x7b/0xa0 [ 15.518470] ? __pfx_kthread+0x10/0x10 [ 15.518490] ret_from_fork+0x116/0x1d0 [ 15.518535] ? __pfx_kthread+0x10/0x10 [ 15.518574] ret_from_fork_asm+0x1a/0x30 [ 15.518635] </TASK> [ 15.518653] [ 15.531205] Allocated by task 277: [ 15.531490] kasan_save_stack+0x45/0x70 [ 15.532184] kasan_save_track+0x18/0x40 [ 15.532414] kasan_save_alloc_info+0x3b/0x50 [ 15.532886] __kasan_kmalloc+0xb7/0xc0 [ 15.533230] __kmalloc_cache_noprof+0x189/0x420 [ 15.533445] kasan_strings+0xc0/0xe80 [ 15.533607] kunit_try_run_case+0x1a5/0x480 [ 15.533794] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.534378] kthread+0x337/0x6f0 [ 15.534865] ret_from_fork+0x116/0x1d0 [ 15.535224] ret_from_fork_asm+0x1a/0x30 [ 15.535893] [ 15.536116] Freed by task 277: [ 15.536369] kasan_save_stack+0x45/0x70 [ 15.536639] kasan_save_track+0x18/0x40 [ 15.536861] kasan_save_free_info+0x3f/0x60 [ 15.537356] __kasan_slab_free+0x56/0x70 [ 15.537557] kfree+0x222/0x3f0 [ 15.537981] kasan_strings+0x2aa/0xe80 [ 15.538261] kunit_try_run_case+0x1a5/0x480 [ 15.538658] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.539032] kthread+0x337/0x6f0 [ 15.539288] ret_from_fork+0x116/0x1d0 [ 15.539527] ret_from_fork_asm+0x1a/0x30 [ 15.540275] [ 15.540403] The buggy address belongs to the object at ffff888102ab8f80 [ 15.540403] which belongs to the cache kmalloc-32 of size 32 [ 15.540787] The buggy address is located 16 bytes inside of [ 15.540787] freed 32-byte region [ffff888102ab8f80, ffff888102ab8fa0) [ 15.541731] [ 15.541923] The buggy address belongs to the physical page: [ 15.542291] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ab8 [ 15.543127] flags: 0x200000000000000(node=0|zone=2) [ 15.543354] page_type: f5(slab) [ 15.543505] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 15.544468] raw: 0000000000000000 0000000000400040 00000000f5000000 0000000000000000 [ 15.545042] page dumped because: kasan: bad access detected [ 15.545241] [ 15.545331] Memory state around the buggy address: [ 15.545728] ffff888102ab8e80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 15.546432] ffff888102ab8f00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 15.547093] >ffff888102ab8f80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 15.548071] ^ [ 15.548425] ffff888102ab9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.548860] ffff888102ab9080: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 15.549090] ==================================================================
[ 15.542337] ================================================================== [ 15.542919] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80 [ 15.543361] Read of size 1 at addr ffff8881031d1550 by task kunit_try_catch/276 [ 15.544394] [ 15.544639] CPU: 1 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 15.544814] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.544830] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.544876] Call Trace: [ 15.544890] <TASK> [ 15.544904] dump_stack_lvl+0x73/0xb0 [ 15.544937] print_report+0xd1/0x650 [ 15.544962] ? __virt_addr_valid+0x1db/0x2d0 [ 15.544984] ? kasan_strings+0xcbc/0xe80 [ 15.545004] ? kasan_complete_mode_report_info+0x64/0x200 [ 15.545030] ? kasan_strings+0xcbc/0xe80 [ 15.545061] kasan_report+0x141/0x180 [ 15.545084] ? kasan_strings+0xcbc/0xe80 [ 15.545111] __asan_report_load1_noabort+0x18/0x20 [ 15.545136] kasan_strings+0xcbc/0xe80 [ 15.545155] ? trace_hardirqs_on+0x37/0xe0 [ 15.545179] ? __pfx_kasan_strings+0x10/0x10 [ 15.545199] ? finish_task_switch.isra.0+0x153/0x700 [ 15.545221] ? __switch_to+0x47/0xf50 [ 15.545246] ? __schedule+0x10cc/0x2b60 [ 15.545270] ? __pfx_read_tsc+0x10/0x10 [ 15.545291] ? ktime_get_ts64+0x86/0x230 [ 15.545315] kunit_try_run_case+0x1a5/0x480 [ 15.545340] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.545361] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.545383] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.545407] ? __kthread_parkme+0x82/0x180 [ 15.545427] ? preempt_count_sub+0x50/0x80 [ 15.545450] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.545473] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.545496] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.545519] kthread+0x337/0x6f0 [ 15.545543] ? trace_preempt_on+0x20/0xc0 [ 15.545565] ? __pfx_kthread+0x10/0x10 [ 15.545586] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.545607] ? calculate_sigpending+0x7b/0xa0 [ 15.545632] ? __pfx_kthread+0x10/0x10 [ 15.545654] ret_from_fork+0x116/0x1d0 [ 15.545672] ? __pfx_kthread+0x10/0x10 [ 15.545693] ret_from_fork_asm+0x1a/0x30 [ 15.545810] </TASK> [ 15.545821] [ 15.559602] Allocated by task 276: [ 15.560011] kasan_save_stack+0x45/0x70 [ 15.560444] kasan_save_track+0x18/0x40 [ 15.560940] kasan_save_alloc_info+0x3b/0x50 [ 15.561411] __kasan_kmalloc+0xb7/0xc0 [ 15.561932] __kmalloc_cache_noprof+0x189/0x420 [ 15.562440] kasan_strings+0xc0/0xe80 [ 15.562925] kunit_try_run_case+0x1a5/0x480 [ 15.563396] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.563994] kthread+0x337/0x6f0 [ 15.564363] ret_from_fork+0x116/0x1d0 [ 15.564823] ret_from_fork_asm+0x1a/0x30 [ 15.564984] [ 15.565077] Freed by task 276: [ 15.565201] kasan_save_stack+0x45/0x70 [ 15.565414] kasan_save_track+0x18/0x40 [ 15.565598] kasan_save_free_info+0x3f/0x60 [ 15.565980] __kasan_slab_free+0x56/0x70 [ 15.566154] kfree+0x222/0x3f0 [ 15.566334] kasan_strings+0x2aa/0xe80 [ 15.566576] kunit_try_run_case+0x1a5/0x480 [ 15.566951] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.567223] kthread+0x337/0x6f0 [ 15.567377] ret_from_fork+0x116/0x1d0 [ 15.567619] ret_from_fork_asm+0x1a/0x30 [ 15.568031] [ 15.568165] The buggy address belongs to the object at ffff8881031d1540 [ 15.568165] which belongs to the cache kmalloc-32 of size 32 [ 15.568827] The buggy address is located 16 bytes inside of [ 15.568827] freed 32-byte region [ffff8881031d1540, ffff8881031d1560) [ 15.569509] [ 15.569628] The buggy address belongs to the physical page: [ 15.570104] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1031d1 [ 15.570425] flags: 0x200000000000000(node=0|zone=2) [ 15.570682] page_type: f5(slab) [ 15.570865] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 15.571243] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 15.571615] page dumped because: kasan: bad access detected [ 15.571864] [ 15.571955] Memory state around the buggy address: [ 15.572486] ffff8881031d1400: 00 00 00 04 fc fc fc fc fa fb fb fb fc fc fc fc [ 15.572979] ffff8881031d1480: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 15.573329] >ffff8881031d1500: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 15.573679] ^ [ 15.574067] ffff8881031d1580: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 15.574416] ffff8881031d1600: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 15.574917] ==================================================================
[ 42.529427] ================================================================== [ 42.536661] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80 [ 42.543367] Read of size 1 at addr ffff8881066e8410 by task kunit_try_catch/300 [ 42.550700] [ 42.552199] CPU: 3 UID: 0 PID: 300 Comm: kunit_try_catch Tainted: G S B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 42.552208] Tainted: [S]=CPU_OUT_OF_SPEC, [B]=BAD_PAGE, [N]=TEST [ 42.552210] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021 [ 42.552214] Call Trace: [ 42.552215] <TASK> [ 42.552217] dump_stack_lvl+0x73/0xb0 [ 42.552222] print_report+0xd1/0x650 [ 42.552226] ? __virt_addr_valid+0x1db/0x2d0 [ 42.552230] ? kasan_strings+0xcbc/0xe80 [ 42.552233] ? kasan_complete_mode_report_info+0x64/0x200 [ 42.552239] ? kasan_strings+0xcbc/0xe80 [ 42.552242] kasan_report+0x141/0x180 [ 42.552246] ? kasan_strings+0xcbc/0xe80 [ 42.552251] __asan_report_load1_noabort+0x18/0x20 [ 42.552256] kasan_strings+0xcbc/0xe80 [ 42.552259] ? trace_hardirqs_on+0x37/0xe0 [ 42.552263] ? __pfx_kasan_strings+0x10/0x10 [ 42.552267] ? finish_task_switch.isra.0+0x153/0x700 [ 42.552271] ? __switch_to+0x544/0xf50 [ 42.552276] ? __schedule+0x10cc/0x2b60 [ 42.552280] ? ktime_get_ts64+0x83/0x230 [ 42.552284] kunit_try_run_case+0x1a2/0x480 [ 42.552289] ? __pfx_kunit_try_run_case+0x10/0x10 [ 42.552293] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 42.552297] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 42.552301] ? __kthread_parkme+0x82/0x180 [ 42.552305] ? preempt_count_sub+0x50/0x80 [ 42.552309] ? __pfx_kunit_try_run_case+0x10/0x10 [ 42.552314] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 42.552318] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 42.552322] kthread+0x334/0x6f0 [ 42.552325] ? trace_preempt_on+0x20/0xc0 [ 42.552347] ? __pfx_kthread+0x10/0x10 [ 42.552351] ? _raw_spin_unlock_irq+0x47/0x80 [ 42.552354] ? calculate_sigpending+0x7b/0xa0 [ 42.552377] ? __pfx_kthread+0x10/0x10 [ 42.552381] ret_from_fork+0x113/0x1d0 [ 42.552385] ? __pfx_kthread+0x10/0x10 [ 42.552401] ret_from_fork_asm+0x1a/0x30 [ 42.552407] </TASK> [ 42.552409] [ 42.728278] Allocated by task 300: [ 42.731685] kasan_save_stack+0x45/0x70 [ 42.735524] kasan_save_track+0x18/0x40 [ 42.739364] kasan_save_alloc_info+0x3b/0x50 [ 42.743661] __kasan_kmalloc+0xb7/0xc0 [ 42.747415] __kmalloc_cache_noprof+0x189/0x420 [ 42.751947] kasan_strings+0xc0/0xe80 [ 42.755612] kunit_try_run_case+0x1a2/0x480 [ 42.759800] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 42.765207] kthread+0x334/0x6f0 [ 42.768463] ret_from_fork+0x113/0x1d0 [ 42.772218] ret_from_fork_asm+0x1a/0x30 [ 42.776144] [ 42.777642] Freed by task 300: [ 42.780701] kasan_save_stack+0x45/0x70 [ 42.784543] kasan_save_track+0x18/0x40 [ 42.788415] kasan_save_free_info+0x3f/0x60 [ 42.792602] __kasan_slab_free+0x56/0x70 [ 42.796527] kfree+0x222/0x3f0 [ 42.799586] kasan_strings+0x2aa/0xe80 [ 42.803363] kunit_try_run_case+0x1a2/0x480 [ 42.807551] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 42.812950] kthread+0x334/0x6f0 [ 42.816184] ret_from_fork+0x113/0x1d0 [ 42.819935] ret_from_fork_asm+0x1a/0x30 [ 42.823863] [ 42.825363] The buggy address belongs to the object at ffff8881066e8400 [ 42.825363] which belongs to the cache kmalloc-32 of size 32 [ 42.837722] The buggy address is located 16 bytes inside of [ 42.837722] freed 32-byte region [ffff8881066e8400, ffff8881066e8420) [ 42.849801] [ 42.851302] The buggy address belongs to the physical page: [ 42.856874] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066e8 [ 42.864874] flags: 0x200000000000000(node=0|zone=2) [ 42.869753] page_type: f5(slab) [ 42.872900] raw: 0200000000000000 ffff888100042780 dead000000000122 0000000000000000 [ 42.880646] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 42.888416] page dumped because: kasan: bad access detected [ 42.893994] [ 42.895493] Memory state around the buggy address: [ 42.900286] ffff8881066e8300: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 42.907505] ffff8881066e8380: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 42.914724] >ffff8881066e8400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 42.921942] ^ [ 42.925697] ffff8881066e8480: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 42.932925] ffff8881066e8500: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 42.940144] ==================================================================