Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.344791] ================================================================== [ 16.344871] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 16.344969] Read of size 1 at addr fff00000c61bc3bf by task kunit_try_catch/138 [ 16.345066] [ 16.345103] CPU: 1 UID: 0 PID: 138 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.345252] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.345282] Hardware name: linux,dummy-virt (DT) [ 16.345341] Call trace: [ 16.345369] show_stack+0x20/0x38 (C) [ 16.345621] dump_stack_lvl+0x8c/0xd0 [ 16.345755] print_report+0x118/0x608 [ 16.345811] kasan_report+0xdc/0x128 [ 16.345856] __asan_report_load1_noabort+0x20/0x30 [ 16.346012] kmalloc_oob_left+0x2ec/0x320 [ 16.346072] kunit_try_run_case+0x170/0x3f0 [ 16.346228] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.346289] kthread+0x328/0x630 [ 16.346389] ret_from_fork+0x10/0x20 [ 16.346441] [ 16.346464] Allocated by task 24: [ 16.346633] kasan_save_stack+0x3c/0x68 [ 16.346723] kasan_save_track+0x20/0x40 [ 16.346768] kasan_save_alloc_info+0x40/0x58 [ 16.346909] __kasan_kmalloc+0xd4/0xd8 [ 16.346990] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 16.347036] kvasprintf+0xe0/0x180 [ 16.347175] __kthread_create_on_node+0x16c/0x350 [ 16.347264] kthread_create_on_node+0xe4/0x130 [ 16.347468] create_worker+0x380/0x6b8 [ 16.347545] worker_thread+0x808/0xf38 [ 16.347587] kthread+0x328/0x630 [ 16.347734] ret_from_fork+0x10/0x20 [ 16.347944] [ 16.348015] The buggy address belongs to the object at fff00000c61bc3a0 [ 16.348015] which belongs to the cache kmalloc-16 of size 16 [ 16.348250] The buggy address is located 19 bytes to the right of [ 16.348250] allocated 12-byte region [fff00000c61bc3a0, fff00000c61bc3ac) [ 16.348439] [ 16.348536] The buggy address belongs to the physical page: [ 16.348577] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061bc [ 16.348769] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.348825] page_type: f5(slab) [ 16.348864] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 16.349018] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 16.349204] page dumped because: kasan: bad access detected [ 16.349283] [ 16.349430] Memory state around the buggy address: [ 16.349676] fff00000c61bc280: 00 02 fc fc 00 05 fc fc fa fb fc fc 00 02 fc fc [ 16.349770] fff00000c61bc300: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 16.349989] >fff00000c61bc380: fa fb fc fc 00 04 fc fc 00 07 fc fc fc fc fc fc [ 16.350204] ^ [ 16.350378] fff00000c61bc400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.350481] fff00000c61bc480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.350750] ==================================================================
[ 11.913629] ================================================================== [ 11.914175] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 11.914447] Read of size 1 at addr ffff8881018fefbf by task kunit_try_catch/155 [ 11.914751] [ 11.914864] CPU: 0 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 11.914907] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.914919] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.914938] Call Trace: [ 11.914950] <TASK> [ 11.914966] dump_stack_lvl+0x73/0xb0 [ 11.914994] print_report+0xd1/0x650 [ 11.915016] ? __virt_addr_valid+0x1db/0x2d0 [ 11.915051] ? kmalloc_oob_left+0x361/0x3c0 [ 11.915071] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.915094] ? kmalloc_oob_left+0x361/0x3c0 [ 11.915115] kasan_report+0x141/0x180 [ 11.915136] ? kmalloc_oob_left+0x361/0x3c0 [ 11.915161] __asan_report_load1_noabort+0x18/0x20 [ 11.915185] kmalloc_oob_left+0x361/0x3c0 [ 11.915207] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 11.915239] ? __schedule+0x10cc/0x2b60 [ 11.915259] ? __pfx_read_tsc+0x10/0x10 [ 11.915280] ? ktime_get_ts64+0x86/0x230 [ 11.915303] kunit_try_run_case+0x1a5/0x480 [ 11.915327] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.915349] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.915371] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.915395] ? __kthread_parkme+0x82/0x180 [ 11.915415] ? preempt_count_sub+0x50/0x80 [ 11.915438] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.915462] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.915485] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.915510] kthread+0x337/0x6f0 [ 11.915529] ? trace_preempt_on+0x20/0xc0 [ 11.915552] ? __pfx_kthread+0x10/0x10 [ 11.915572] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.915593] ? calculate_sigpending+0x7b/0xa0 [ 11.915619] ? __pfx_kthread+0x10/0x10 [ 11.915640] ret_from_fork+0x116/0x1d0 [ 11.915657] ? __pfx_kthread+0x10/0x10 [ 11.915677] ret_from_fork_asm+0x1a/0x30 [ 11.915719] </TASK> [ 11.915729] [ 11.924715] Allocated by task 1: [ 11.925111] kasan_save_stack+0x45/0x70 [ 11.925329] kasan_save_track+0x18/0x40 [ 11.925484] kasan_save_alloc_info+0x3b/0x50 [ 11.925695] __kasan_kmalloc+0xb7/0xc0 [ 11.925892] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 11.926412] kvasprintf+0xc5/0x150 [ 11.926565] __kthread_create_on_node+0x18b/0x3a0 [ 11.926938] kthread_create_on_node+0xab/0xe0 [ 11.927124] create_worker+0x3e5/0x7b0 [ 11.927499] alloc_unbound_pwq+0x8ea/0xdb0 [ 11.927862] apply_wqattrs_prepare+0x332/0xd20 [ 11.928165] apply_workqueue_attrs_locked+0x4d/0xa0 [ 11.928451] alloc_workqueue+0xcc7/0x1ad0 [ 11.928619] latency_fsnotify_init+0x1b/0x50 [ 11.928835] do_one_initcall+0xd8/0x370 [ 11.929009] kernel_init_freeable+0x420/0x6f0 [ 11.929462] kernel_init+0x23/0x1e0 [ 11.929691] ret_from_fork+0x116/0x1d0 [ 11.929937] ret_from_fork_asm+0x1a/0x30 [ 11.930206] [ 11.930345] The buggy address belongs to the object at ffff8881018fefa0 [ 11.930345] which belongs to the cache kmalloc-16 of size 16 [ 11.930874] The buggy address is located 18 bytes to the right of [ 11.930874] allocated 13-byte region [ffff8881018fefa0, ffff8881018fefad) [ 11.931767] [ 11.931870] The buggy address belongs to the physical page: [ 11.932101] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1018fe [ 11.932723] flags: 0x200000000000000(node=0|zone=2) [ 11.932929] page_type: f5(slab) [ 11.933100] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 11.933566] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 11.933898] page dumped because: kasan: bad access detected [ 11.934283] [ 11.934425] Memory state around the buggy address: [ 11.934616] ffff8881018fee80: 00 02 fc fc 00 05 fc fc 00 02 fc fc 00 02 fc fc [ 11.935073] ffff8881018fef00: 00 02 fc fc 00 02 fc fc fa fb fc fc fa fb fc fc [ 11.935661] >ffff8881018fef80: fa fb fc fc 00 05 fc fc 00 07 fc fc fc fc fc fc [ 11.936187] ^ [ 11.936527] ffff8881018ff000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.936918] ffff8881018ff080: 00 fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 [ 11.937217] ==================================================================