Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.716672] ================================================================== [ 30.716732] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 30.716787] Read of size 64 at addr fff00000c637aa84 by task kunit_try_catch/213 [ 30.716839] [ 30.716870] CPU: 0 UID: 0 PID: 213 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 30.716992] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.717020] Hardware name: linux,dummy-virt (DT) [ 30.717051] Call trace: [ 30.717081] show_stack+0x20/0x38 (C) [ 30.717139] dump_stack_lvl+0x8c/0xd0 [ 30.717195] print_report+0x118/0x5d0 [ 30.717239] kasan_report+0xdc/0x128 [ 30.717283] kasan_check_range+0x100/0x1a8 [ 30.717334] __asan_memmove+0x3c/0x98 [ 30.717380] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 30.717442] kunit_try_run_case+0x170/0x3f0 [ 30.717494] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.717740] kthread+0x328/0x630 [ 30.717808] ret_from_fork+0x10/0x20 [ 30.717999] [ 30.718128] Allocated by task 213: [ 30.718321] kasan_save_stack+0x3c/0x68 [ 30.718580] kasan_save_track+0x20/0x40 [ 30.718634] kasan_save_alloc_info+0x40/0x58 [ 30.718751] __kasan_kmalloc+0xd4/0xd8 [ 30.718858] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.718996] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 30.719068] kunit_try_run_case+0x170/0x3f0 [ 30.719106] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.719444] kthread+0x328/0x630 [ 30.719610] ret_from_fork+0x10/0x20 [ 30.719753] [ 30.719806] The buggy address belongs to the object at fff00000c637aa80 [ 30.719806] which belongs to the cache kmalloc-64 of size 64 [ 30.719913] The buggy address is located 4 bytes inside of [ 30.719913] allocated 64-byte region [fff00000c637aa80, fff00000c637aac0) [ 30.720126] [ 30.720162] The buggy address belongs to the physical page: [ 30.720194] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10637a [ 30.720409] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.720566] page_type: f5(slab) [ 30.720741] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 30.720844] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 30.720932] page dumped because: kasan: bad access detected [ 30.721022] [ 30.721085] Memory state around the buggy address: [ 30.721217] fff00000c637a980: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 30.721313] fff00000c637aa00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.721364] >fff00000c637aa80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 30.721631] ^ [ 30.721773] fff00000c637ab00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.721852] fff00000c637ab80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.722015] ==================================================================
[ 23.473216] ================================================================== [ 23.473654] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.473908] Read of size 64 at addr ffff888106080104 by task kunit_try_catch/231 [ 23.474130] [ 23.474216] CPU: 1 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 23.474264] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.474289] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.474308] Call Trace: [ 23.474321] <TASK> [ 23.474340] dump_stack_lvl+0x73/0xb0 [ 23.474367] print_report+0xd1/0x610 [ 23.474387] ? __virt_addr_valid+0x1db/0x2d0 [ 23.474410] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.474432] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.474456] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.474478] kasan_report+0x141/0x180 [ 23.474499] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.474526] kasan_check_range+0x10c/0x1c0 [ 23.474547] __asan_memmove+0x27/0x70 [ 23.474569] kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.474592] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 23.474615] ? __schedule+0x10c6/0x2b60 [ 23.474637] ? __pfx_read_tsc+0x10/0x10 [ 23.474658] ? ktime_get_ts64+0x86/0x230 [ 23.474683] kunit_try_run_case+0x1a5/0x480 [ 23.474705] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.474726] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.474747] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.474768] ? __kthread_parkme+0x82/0x180 [ 23.474787] ? preempt_count_sub+0x50/0x80 [ 23.474809] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.474831] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.474856] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.474881] kthread+0x337/0x6f0 [ 23.474899] ? trace_preempt_on+0x20/0xc0 [ 23.474922] ? __pfx_kthread+0x10/0x10 [ 23.474941] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.474960] ? calculate_sigpending+0x7b/0xa0 [ 23.474983] ? __pfx_kthread+0x10/0x10 [ 23.475002] ret_from_fork+0x116/0x1d0 [ 23.475020] ? __pfx_kthread+0x10/0x10 [ 23.475039] ret_from_fork_asm+0x1a/0x30 [ 23.475069] </TASK> [ 23.475078] [ 23.487152] Allocated by task 231: [ 23.487457] kasan_save_stack+0x45/0x70 [ 23.487766] kasan_save_track+0x18/0x40 [ 23.487969] kasan_save_alloc_info+0x3b/0x50 [ 23.488302] __kasan_kmalloc+0xb7/0xc0 [ 23.488461] __kmalloc_cache_noprof+0x189/0x420 [ 23.488840] kmalloc_memmove_invalid_size+0xac/0x330 [ 23.489227] kunit_try_run_case+0x1a5/0x480 [ 23.489459] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.489758] kthread+0x337/0x6f0 [ 23.490189] ret_from_fork+0x116/0x1d0 [ 23.490396] ret_from_fork_asm+0x1a/0x30 [ 23.490592] [ 23.491095] The buggy address belongs to the object at ffff888106080100 [ 23.491095] which belongs to the cache kmalloc-64 of size 64 [ 23.491685] The buggy address is located 4 bytes inside of [ 23.491685] allocated 64-byte region [ffff888106080100, ffff888106080140) [ 23.492534] [ 23.492636] The buggy address belongs to the physical page: [ 23.492859] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106080 [ 23.493400] flags: 0x200000000000000(node=0|zone=2) [ 23.493702] page_type: f5(slab) [ 23.493841] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 23.494359] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 23.494807] page dumped because: kasan: bad access detected [ 23.495253] [ 23.495368] Memory state around the buggy address: [ 23.495563] ffff888106080000: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 23.495861] ffff888106080080: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 23.496148] >ffff888106080100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 23.496435] ^ [ 23.496672] ffff888106080180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.497463] ffff888106080200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.497786] ==================================================================