Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.130736] ================================================================== [ 18.131235] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.131305] Read of size 64 at addr fff00000c6879a04 by task kunit_try_catch/182 [ 18.131459] [ 18.131546] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 18.131728] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.131786] Hardware name: linux,dummy-virt (DT) [ 18.131816] Call trace: [ 18.131837] show_stack+0x20/0x38 (C) [ 18.131893] dump_stack_lvl+0x8c/0xd0 [ 18.131938] print_report+0x118/0x608 [ 18.132287] kasan_report+0xdc/0x128 [ 18.132366] kasan_check_range+0x100/0x1a8 [ 18.132496] __asan_memmove+0x3c/0x98 [ 18.132549] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.132636] kunit_try_run_case+0x170/0x3f0 [ 18.132823] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.132892] kthread+0x328/0x630 [ 18.132938] ret_from_fork+0x10/0x20 [ 18.133123] [ 18.133149] Allocated by task 182: [ 18.133199] kasan_save_stack+0x3c/0x68 [ 18.133242] kasan_save_track+0x20/0x40 [ 18.133278] kasan_save_alloc_info+0x40/0x58 [ 18.133459] __kasan_kmalloc+0xd4/0xd8 [ 18.133545] __kmalloc_cache_noprof+0x15c/0x3c0 [ 18.133601] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 18.133948] kunit_try_run_case+0x170/0x3f0 [ 18.134117] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.134454] kthread+0x328/0x630 [ 18.134752] ret_from_fork+0x10/0x20 [ 18.134952] [ 18.135034] The buggy address belongs to the object at fff00000c6879a00 [ 18.135034] which belongs to the cache kmalloc-64 of size 64 [ 18.135259] The buggy address is located 4 bytes inside of [ 18.135259] allocated 64-byte region [fff00000c6879a00, fff00000c6879a40) [ 18.135430] [ 18.135753] The buggy address belongs to the physical page: [ 18.135887] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106879 [ 18.135993] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.136148] page_type: f5(slab) [ 18.136227] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.136433] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.136538] page dumped because: kasan: bad access detected [ 18.136701] [ 18.136745] Memory state around the buggy address: [ 18.136843] fff00000c6879900: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.136927] fff00000c6879980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.137003] >fff00000c6879a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.137041] ^ [ 18.137343] fff00000c6879a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.137532] fff00000c6879b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.137621] ==================================================================
[ 14.309832] ================================================================== [ 14.310311] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.311155] Read of size 64 at addr ffff88810230b104 by task kunit_try_catch/200 [ 14.311474] [ 14.311677] CPU: 1 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 14.311772] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.311794] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.311820] Call Trace: [ 14.311835] <TASK> [ 14.311862] dump_stack_lvl+0x73/0xb0 [ 14.311898] print_report+0xd1/0x650 [ 14.311921] ? __virt_addr_valid+0x1db/0x2d0 [ 14.311954] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.311990] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.312022] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.312062] kasan_report+0x141/0x180 [ 14.312103] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.312159] kasan_check_range+0x10c/0x1c0 [ 14.312206] __asan_memmove+0x27/0x70 [ 14.312261] kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.312310] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 14.312360] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 14.312415] kunit_try_run_case+0x1a5/0x480 [ 14.312445] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.312465] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.312489] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.312509] ? __kthread_parkme+0x82/0x180 [ 14.312529] ? preempt_count_sub+0x50/0x80 [ 14.312554] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.312576] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.312596] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.312617] kthread+0x337/0x6f0 [ 14.312635] ? trace_preempt_on+0x20/0xc0 [ 14.312658] ? __pfx_kthread+0x10/0x10 [ 14.312678] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.312697] ? calculate_sigpending+0x7b/0xa0 [ 14.312720] ? __pfx_kthread+0x10/0x10 [ 14.312740] ret_from_fork+0x116/0x1d0 [ 14.312758] ? __pfx_kthread+0x10/0x10 [ 14.312777] ret_from_fork_asm+0x1a/0x30 [ 14.312808] </TASK> [ 14.312820] [ 14.319761] Allocated by task 200: [ 14.320066] kasan_save_stack+0x45/0x70 [ 14.320399] kasan_save_track+0x18/0x40 [ 14.320681] kasan_save_alloc_info+0x3b/0x50 [ 14.321001] __kasan_kmalloc+0xb7/0xc0 [ 14.321319] __kmalloc_cache_noprof+0x189/0x420 [ 14.321657] kmalloc_memmove_invalid_size+0xac/0x330 [ 14.322046] kunit_try_run_case+0x1a5/0x480 [ 14.322377] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.322774] kthread+0x337/0x6f0 [ 14.323054] ret_from_fork+0x116/0x1d0 [ 14.323374] ret_from_fork_asm+0x1a/0x30 [ 14.323690] [ 14.323806] The buggy address belongs to the object at ffff88810230b100 [ 14.323806] which belongs to the cache kmalloc-64 of size 64 [ 14.324281] The buggy address is located 4 bytes inside of [ 14.324281] allocated 64-byte region [ffff88810230b100, ffff88810230b140) [ 14.324829] [ 14.324990] The buggy address belongs to the physical page: [ 14.325282] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10230b [ 14.325660] flags: 0x200000000000000(node=0|zone=2) [ 14.325923] page_type: f5(slab) [ 14.326088] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 14.326607] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 14.326939] page dumped because: kasan: bad access detected [ 14.327290] [ 14.327433] Memory state around the buggy address: [ 14.327704] ffff88810230b000: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.328107] ffff88810230b080: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.328504] >ffff88810230b100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 14.328777] ^ [ 14.329044] ffff88810230b180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.329359] ffff88810230b200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.329641] ==================================================================