Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.082331] ================================================================== [ 18.082579] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 18.082673] Write of size 4 at addr fff00000c3ec0375 by task kunit_try_catch/174 [ 18.082748] [ 18.082830] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.082909] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.082940] Hardware name: linux,dummy-virt (DT) [ 18.082995] Call trace: [ 18.083095] show_stack+0x20/0x38 (C) [ 18.083142] dump_stack_lvl+0x8c/0xd0 [ 18.083201] print_report+0x118/0x608 [ 18.083245] kasan_report+0xdc/0x128 [ 18.083289] kasan_check_range+0x100/0x1a8 [ 18.083335] __asan_memset+0x34/0x78 [ 18.083375] kmalloc_oob_memset_4+0x150/0x300 [ 18.083419] kunit_try_run_case+0x170/0x3f0 [ 18.083463] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.083523] kthread+0x328/0x630 [ 18.083563] ret_from_fork+0x10/0x20 [ 18.083612] [ 18.083631] Allocated by task 174: [ 18.083657] kasan_save_stack+0x3c/0x68 [ 18.083696] kasan_save_track+0x20/0x40 [ 18.083732] kasan_save_alloc_info+0x40/0x58 [ 18.083770] __kasan_kmalloc+0xd4/0xd8 [ 18.083814] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.083852] kmalloc_oob_memset_4+0xb0/0x300 [ 18.083935] kunit_try_run_case+0x170/0x3f0 [ 18.083972] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.084224] kthread+0x328/0x630 [ 18.084266] ret_from_fork+0x10/0x20 [ 18.084384] [ 18.084470] The buggy address belongs to the object at fff00000c3ec0300 [ 18.084470] which belongs to the cache kmalloc-128 of size 128 [ 18.084600] The buggy address is located 117 bytes inside of [ 18.084600] allocated 120-byte region [fff00000c3ec0300, fff00000c3ec0378) [ 18.084678] [ 18.084697] The buggy address belongs to the physical page: [ 18.084749] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ec0 [ 18.084798] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.085087] page_type: f5(slab) [ 18.085233] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.085361] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.085504] page dumped because: kasan: bad access detected [ 18.085603] [ 18.085680] Memory state around the buggy address: [ 18.085804] fff00000c3ec0200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.086054] fff00000c3ec0280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.086095] >fff00000c3ec0300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.086159] ^ [ 18.086521] fff00000c3ec0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.086674] fff00000c3ec0400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.086824] ==================================================================
[ 13.681927] ================================================================== [ 13.682485] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 13.682767] Write of size 4 at addr ffff8881021db975 by task kunit_try_catch/192 [ 13.683033] [ 13.683143] CPU: 0 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.683199] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.683212] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.683238] Call Trace: [ 13.683254] <TASK> [ 13.683277] dump_stack_lvl+0x73/0xb0 [ 13.683314] print_report+0xd1/0x650 [ 13.683339] ? __virt_addr_valid+0x1db/0x2d0 [ 13.683367] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.683390] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.683414] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.683439] kasan_report+0x141/0x180 [ 13.683464] ? kmalloc_oob_memset_4+0x166/0x330 [ 13.683494] kasan_check_range+0x10c/0x1c0 [ 13.683520] __asan_memset+0x27/0x50 [ 13.683541] kmalloc_oob_memset_4+0x166/0x330 [ 13.683566] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 13.683591] ? __schedule+0x10cc/0x2b60 [ 13.683617] ? __pfx_read_tsc+0x10/0x10 [ 13.683641] ? ktime_get_ts64+0x86/0x230 [ 13.683669] kunit_try_run_case+0x1a5/0x480 [ 13.683697] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.683721] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.683747] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.683772] ? __kthread_parkme+0x82/0x180 [ 13.684710] ? preempt_count_sub+0x50/0x80 [ 13.684751] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.684779] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.684819] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.684844] kthread+0x337/0x6f0 [ 13.684868] ? trace_preempt_on+0x20/0xc0 [ 13.684895] ? __pfx_kthread+0x10/0x10 [ 13.684918] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.684943] ? calculate_sigpending+0x7b/0xa0 [ 13.684971] ? __pfx_kthread+0x10/0x10 [ 13.684996] ret_from_fork+0x116/0x1d0 [ 13.685017] ? __pfx_kthread+0x10/0x10 [ 13.685040] ret_from_fork_asm+0x1a/0x30 [ 13.685077] </TASK> [ 13.685130] [ 13.697714] Allocated by task 192: [ 13.698150] kasan_save_stack+0x45/0x70 [ 13.698414] kasan_save_track+0x18/0x40 [ 13.698621] kasan_save_alloc_info+0x3b/0x50 [ 13.698815] __kasan_kmalloc+0xb7/0xc0 [ 13.699029] __kmalloc_cache_noprof+0x189/0x420 [ 13.699385] kmalloc_oob_memset_4+0xac/0x330 [ 13.699558] kunit_try_run_case+0x1a5/0x480 [ 13.699754] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.700073] kthread+0x337/0x6f0 [ 13.700269] ret_from_fork+0x116/0x1d0 [ 13.700500] ret_from_fork_asm+0x1a/0x30 [ 13.700716] [ 13.700837] The buggy address belongs to the object at ffff8881021db900 [ 13.700837] which belongs to the cache kmalloc-128 of size 128 [ 13.702023] The buggy address is located 117 bytes inside of [ 13.702023] allocated 120-byte region [ffff8881021db900, ffff8881021db978) [ 13.702687] [ 13.702815] The buggy address belongs to the physical page: [ 13.703051] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1021db [ 13.703410] flags: 0x200000000000000(node=0|zone=2) [ 13.703676] page_type: f5(slab) [ 13.703998] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.704420] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.704778] page dumped because: kasan: bad access detected [ 13.705054] [ 13.705665] Memory state around the buggy address: [ 13.705980] ffff8881021db800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.706754] ffff8881021db880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.707398] >ffff8881021db900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.707908] ^ [ 13.708676] ffff8881021db980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.709048] ffff8881021dba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.709969] ==================================================================