Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.923291] ================================================================== [ 21.923771] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 21.924134] Read of size 64 at addr fff00000c7950e84 by task kunit_try_catch/184 [ 21.924274] [ 21.924388] CPU: 0 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 21.924663] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.924763] Hardware name: linux,dummy-virt (DT) [ 21.924878] Call trace: [ 21.924965] show_stack+0x20/0x38 (C) [ 21.925080] dump_stack_lvl+0x8c/0xd0 [ 21.925428] print_report+0x118/0x608 [ 21.925575] kasan_report+0xdc/0x128 [ 21.925687] kasan_check_range+0x100/0x1a8 [ 21.925814] __asan_memmove+0x3c/0x98 [ 21.925923] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 21.926027] kunit_try_run_case+0x170/0x3f0 [ 21.926129] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.926243] kthread+0x328/0x630 [ 21.926355] ret_from_fork+0x10/0x20 [ 21.926490] [ 21.926534] Allocated by task 184: [ 21.926604] kasan_save_stack+0x3c/0x68 [ 21.927025] kasan_save_track+0x20/0x40 [ 21.927148] kasan_save_alloc_info+0x40/0x58 [ 21.927240] __kasan_kmalloc+0xd4/0xd8 [ 21.927369] __kmalloc_cache_noprof+0x16c/0x3c0 [ 21.927511] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 21.927659] kunit_try_run_case+0x170/0x3f0 [ 21.927779] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.927883] kthread+0x328/0x630 [ 21.928203] ret_from_fork+0x10/0x20 [ 21.928290] [ 21.928339] The buggy address belongs to the object at fff00000c7950e80 [ 21.928339] which belongs to the cache kmalloc-64 of size 64 [ 21.928828] The buggy address is located 4 bytes inside of [ 21.928828] allocated 64-byte region [fff00000c7950e80, fff00000c7950ec0) [ 21.928992] [ 21.929079] The buggy address belongs to the physical page: [ 21.929233] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107950 [ 21.929359] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.929468] page_type: f5(slab) [ 21.929548] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 21.929658] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 21.929778] page dumped because: kasan: bad access detected [ 21.929853] [ 21.929898] Memory state around the buggy address: [ 21.930283] fff00000c7950d80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 21.930489] fff00000c7950e00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 21.930606] >fff00000c7950e80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 21.930694] ^ [ 21.930789] fff00000c7950f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.931200] fff00000c7950f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.931313] ==================================================================
[ 19.550427] ================================================================== [ 19.552285] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 19.552653] Read of size 64 at addr ffff8881030a1a84 by task kunit_try_catch/202 [ 19.552899] [ 19.553092] CPU: 0 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 19.553221] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.553259] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 19.553336] Call Trace: [ 19.553385] <TASK> [ 19.553439] dump_stack_lvl+0x73/0xb0 [ 19.553524] print_report+0xd1/0x650 [ 19.553598] ? __virt_addr_valid+0x1db/0x2d0 [ 19.553726] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 19.553816] ? kasan_complete_mode_report_info+0x2a/0x200 [ 19.553929] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 19.554637] kasan_report+0x141/0x180 [ 19.554684] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 19.554732] kasan_check_range+0x10c/0x1c0 [ 19.554766] __asan_memmove+0x27/0x70 [ 19.554799] kmalloc_memmove_invalid_size+0x16f/0x330 [ 19.554838] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 19.554877] ? __schedule+0x10cc/0x2b60 [ 19.554912] ? __pfx_read_tsc+0x10/0x10 [ 19.554944] ? ktime_get_ts64+0x86/0x230 [ 19.555029] kunit_try_run_case+0x1a5/0x480 [ 19.555177] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.555251] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 19.555347] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 19.555393] ? __kthread_parkme+0x82/0x180 [ 19.555429] ? preempt_count_sub+0x50/0x80 [ 19.555468] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.555506] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 19.555540] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 19.555575] kthread+0x337/0x6f0 [ 19.555600] ? trace_preempt_on+0x20/0xc0 [ 19.555639] ? __pfx_kthread+0x10/0x10 [ 19.555666] ? _raw_spin_unlock_irq+0x47/0x80 [ 19.555698] ? calculate_sigpending+0x7b/0xa0 [ 19.555730] ? __pfx_kthread+0x10/0x10 [ 19.555757] ret_from_fork+0x41/0x80 [ 19.555791] ? __pfx_kthread+0x10/0x10 [ 19.555817] ret_from_fork_asm+0x1a/0x30 [ 19.555863] </TASK> [ 19.555893] [ 19.575794] Allocated by task 202: [ 19.576232] kasan_save_stack+0x45/0x70 [ 19.576640] kasan_save_track+0x18/0x40 [ 19.577004] kasan_save_alloc_info+0x3b/0x50 [ 19.578334] __kasan_kmalloc+0xb7/0xc0 [ 19.578851] __kmalloc_cache_noprof+0x189/0x420 [ 19.579601] kmalloc_memmove_invalid_size+0xac/0x330 [ 19.580431] kunit_try_run_case+0x1a5/0x480 [ 19.580806] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 19.581706] kthread+0x337/0x6f0 [ 19.582038] ret_from_fork+0x41/0x80 [ 19.582912] ret_from_fork_asm+0x1a/0x30 [ 19.583778] [ 19.583978] The buggy address belongs to the object at ffff8881030a1a80 [ 19.583978] which belongs to the cache kmalloc-64 of size 64 [ 19.584639] The buggy address is located 4 bytes inside of [ 19.584639] allocated 64-byte region [ffff8881030a1a80, ffff8881030a1ac0) [ 19.585264] [ 19.587610] The buggy address belongs to the physical page: [ 19.589709] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1030a1 [ 19.592779] flags: 0x200000000000000(node=0|zone=2) [ 19.594633] page_type: f5(slab) [ 19.595528] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 19.597567] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.598765] page dumped because: kasan: bad access detected [ 19.599448] [ 19.599683] Memory state around the buggy address: [ 19.600406] ffff8881030a1980: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.601132] ffff8881030a1a00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.601776] >ffff8881030a1a80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.602637] ^ [ 19.603317] ffff8881030a1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.603943] ffff8881030a1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.604750] ==================================================================