Date
July 9, 2025, 12:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.305841] ================================================================== [ 19.305987] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 19.306125] Read of size 1 at addr fff00000c63fb000 by task kunit_try_catch/141 [ 19.306245] [ 19.306307] CPU: 1 UID: 0 PID: 141 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.306387] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.306459] Hardware name: linux,dummy-virt (DT) [ 19.306489] Call trace: [ 19.306519] show_stack+0x20/0x38 (C) [ 19.306587] dump_stack_lvl+0x8c/0xd0 [ 19.306673] print_report+0x118/0x608 [ 19.306738] kasan_report+0xdc/0x128 [ 19.306804] __asan_report_load1_noabort+0x20/0x30 [ 19.306861] kmalloc_node_oob_right+0x2f4/0x330 [ 19.306916] kunit_try_run_case+0x170/0x3f0 [ 19.306965] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.307121] kthread+0x328/0x630 [ 19.307253] ret_from_fork+0x10/0x20 [ 19.307361] [ 19.307379] Allocated by task 141: [ 19.307450] kasan_save_stack+0x3c/0x68 [ 19.307518] kasan_save_track+0x20/0x40 [ 19.307574] kasan_save_alloc_info+0x40/0x58 [ 19.307614] __kasan_kmalloc+0xd4/0xd8 [ 19.307651] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 19.307710] kmalloc_node_oob_right+0xbc/0x330 [ 19.307753] kunit_try_run_case+0x170/0x3f0 [ 19.307790] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.307832] kthread+0x328/0x630 [ 19.307864] ret_from_fork+0x10/0x20 [ 19.307899] [ 19.307917] The buggy address belongs to the object at fff00000c63fa000 [ 19.307917] which belongs to the cache kmalloc-4k of size 4096 [ 19.308029] The buggy address is located 0 bytes to the right of [ 19.308029] allocated 4096-byte region [fff00000c63fa000, fff00000c63fb000) [ 19.308220] [ 19.308239] The buggy address belongs to the physical page: [ 19.308332] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063f8 [ 19.308628] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 19.308682] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 19.308757] page_type: f5(slab) [ 19.308794] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.308844] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.308900] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 19.308948] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 19.308997] head: 0bfffe0000000003 ffffc1ffc318fe01 00000000ffffffff 00000000ffffffff [ 19.309256] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 19.309331] page dumped because: kasan: bad access detected [ 19.309363] [ 19.309382] Memory state around the buggy address: [ 19.309424] fff00000c63faf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.309493] fff00000c63faf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.309560] >fff00000c63fb000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.309733] ^ [ 19.309761] fff00000c63fb080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.309802] fff00000c63fb100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.309839] ==================================================================
[ 12.012273] ================================================================== [ 12.012737] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.013114] Read of size 1 at addr ffff888102b6d000 by task kunit_try_catch/157 [ 12.013507] [ 12.013641] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.013689] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.013700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.013720] Call Trace: [ 12.013733] <TASK> [ 12.013751] dump_stack_lvl+0x73/0xb0 [ 12.013782] print_report+0xd1/0x650 [ 12.013805] ? __virt_addr_valid+0x1db/0x2d0 [ 12.013828] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.013851] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.013874] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.013898] kasan_report+0x141/0x180 [ 12.013919] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.014020] __asan_report_load1_noabort+0x18/0x20 [ 12.014047] kmalloc_node_oob_right+0x369/0x3c0 [ 12.014071] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.014095] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 12.014122] ? trace_hardirqs_on+0x37/0xe0 [ 12.014145] ? __pfx_read_tsc+0x10/0x10 [ 12.014167] ? ktime_get_ts64+0x86/0x230 [ 12.014190] kunit_try_run_case+0x1a5/0x480 [ 12.014215] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.014239] ? queued_spin_lock_slowpath+0x116/0xb40 [ 12.014276] ? __kthread_parkme+0x82/0x180 [ 12.014297] ? preempt_count_sub+0x50/0x80 [ 12.014321] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.014344] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.014368] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.014393] kthread+0x337/0x6f0 [ 12.014411] ? trace_preempt_on+0x20/0xc0 [ 12.014432] ? __pfx_kthread+0x10/0x10 [ 12.014452] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.014473] ? calculate_sigpending+0x7b/0xa0 [ 12.014497] ? __pfx_kthread+0x10/0x10 [ 12.014518] ret_from_fork+0x116/0x1d0 [ 12.014535] ? __pfx_kthread+0x10/0x10 [ 12.014555] ret_from_fork_asm+0x1a/0x30 [ 12.014585] </TASK> [ 12.014596] [ 12.022037] Allocated by task 157: [ 12.022229] kasan_save_stack+0x45/0x70 [ 12.022446] kasan_save_track+0x18/0x40 [ 12.022634] kasan_save_alloc_info+0x3b/0x50 [ 12.022850] __kasan_kmalloc+0xb7/0xc0 [ 12.023063] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.023456] kmalloc_node_oob_right+0xab/0x3c0 [ 12.023627] kunit_try_run_case+0x1a5/0x480 [ 12.023808] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.024071] kthread+0x337/0x6f0 [ 12.024237] ret_from_fork+0x116/0x1d0 [ 12.024476] ret_from_fork_asm+0x1a/0x30 [ 12.024621] [ 12.024691] The buggy address belongs to the object at ffff888102b6c000 [ 12.024691] which belongs to the cache kmalloc-4k of size 4096 [ 12.025331] The buggy address is located 0 bytes to the right of [ 12.025331] allocated 4096-byte region [ffff888102b6c000, ffff888102b6d000) [ 12.025785] [ 12.025857] The buggy address belongs to the physical page: [ 12.026105] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b68 [ 12.027044] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.027694] flags: 0x200000000000040(head|node=0|zone=2) [ 12.027989] page_type: f5(slab) [ 12.028119] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.028671] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.029053] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.029542] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.029890] head: 0200000000000003 ffffea00040ada01 00000000ffffffff 00000000ffffffff [ 12.030273] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.030624] page dumped because: kasan: bad access detected [ 12.030851] [ 12.030944] Memory state around the buggy address: [ 12.031147] ffff888102b6cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.031593] ffff888102b6cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.031844] >ffff888102b6d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.032373] ^ [ 12.032520] ffff888102b6d080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.032796] ffff888102b6d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.033145] ==================================================================