Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 26.745831] ================================================================== [ 26.745902] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 26.745971] Read of size 64 at addr fff00000c78b0a04 by task kunit_try_catch/194 [ 26.746425] [ 26.746603] CPU: 1 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 26.746699] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.746734] Hardware name: linux,dummy-virt (DT) [ 26.746877] Call trace: [ 26.747107] show_stack+0x20/0x38 (C) [ 26.747337] dump_stack_lvl+0x8c/0xd0 [ 26.747537] print_report+0x118/0x608 [ 26.747591] kasan_report+0xdc/0x128 [ 26.747707] kasan_check_range+0x100/0x1a8 [ 26.747759] __asan_memmove+0x3c/0x98 [ 26.747802] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 26.747977] kunit_try_run_case+0x170/0x3f0 [ 26.748075] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.748250] kthread+0x328/0x630 [ 26.748300] ret_from_fork+0x10/0x20 [ 26.748524] [ 26.748664] Allocated by task 194: [ 26.748719] kasan_save_stack+0x3c/0x68 [ 26.748836] kasan_save_track+0x20/0x40 [ 26.748878] kasan_save_alloc_info+0x40/0x58 [ 26.748914] __kasan_kmalloc+0xd4/0xd8 [ 26.748951] __kmalloc_cache_noprof+0x16c/0x3c0 [ 26.748991] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 26.749033] kunit_try_run_case+0x170/0x3f0 [ 26.749079] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.749124] kthread+0x328/0x630 [ 26.749158] ret_from_fork+0x10/0x20 [ 26.749193] [ 26.749213] The buggy address belongs to the object at fff00000c78b0a00 [ 26.749213] which belongs to the cache kmalloc-64 of size 64 [ 26.749282] The buggy address is located 4 bytes inside of [ 26.749282] allocated 64-byte region [fff00000c78b0a00, fff00000c78b0a40) [ 26.749348] [ 26.749368] The buggy address belongs to the physical page: [ 26.749418] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0 [ 26.749480] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 26.749532] page_type: f5(slab) [ 26.749573] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 26.749621] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 26.749670] page dumped because: kasan: bad access detected [ 26.749701] [ 26.749719] Memory state around the buggy address: [ 26.749766] fff00000c78b0900: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 26.749826] fff00000c78b0980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 26.749878] >fff00000c78b0a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 26.749916] ^ [ 26.749950] fff00000c78b0a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.749990] fff00000c78b0b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.750029] ==================================================================
[ 22.076556] ================================================================== [ 22.077494] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.077730] Read of size 64 at addr ffff888103958d04 by task kunit_try_catch/211 [ 22.078421] [ 22.078611] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 22.078660] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.078672] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.078718] Call Trace: [ 22.078751] <TASK> [ 22.078767] dump_stack_lvl+0x73/0xb0 [ 22.078792] print_report+0xd1/0x650 [ 22.078819] ? __virt_addr_valid+0x1db/0x2d0 [ 22.078841] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.078862] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.078886] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.078907] kasan_report+0x141/0x180 [ 22.078927] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.078961] kasan_check_range+0x10c/0x1c0 [ 22.078982] __asan_memmove+0x27/0x70 [ 22.079004] kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.079026] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 22.079048] ? __schedule+0x10cc/0x2b60 [ 22.079071] ? __pfx_read_tsc+0x10/0x10 [ 22.079091] ? ktime_get_ts64+0x86/0x230 [ 22.079116] kunit_try_run_case+0x1a5/0x480 [ 22.079139] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.079160] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.079179] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.079202] ? __kthread_parkme+0x82/0x180 [ 22.079220] ? preempt_count_sub+0x50/0x80 [ 22.079241] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.079263] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.079285] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.079307] kthread+0x337/0x6f0 [ 22.079324] ? trace_preempt_on+0x20/0xc0 [ 22.079346] ? __pfx_kthread+0x10/0x10 [ 22.079364] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.079386] ? calculate_sigpending+0x7b/0xa0 [ 22.079407] ? __pfx_kthread+0x10/0x10 [ 22.079426] ret_from_fork+0x116/0x1d0 [ 22.079443] ? __pfx_kthread+0x10/0x10 [ 22.079462] ret_from_fork_asm+0x1a/0x30 [ 22.079490] </TASK> [ 22.079500] [ 22.093008] Allocated by task 211: [ 22.093349] kasan_save_stack+0x45/0x70 [ 22.093615] kasan_save_track+0x18/0x40 [ 22.093851] kasan_save_alloc_info+0x3b/0x50 [ 22.094298] __kasan_kmalloc+0xb7/0xc0 [ 22.094683] __kmalloc_cache_noprof+0x189/0x420 [ 22.094998] kmalloc_memmove_invalid_size+0xac/0x330 [ 22.095446] kunit_try_run_case+0x1a5/0x480 [ 22.095600] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.095765] kthread+0x337/0x6f0 [ 22.095907] ret_from_fork+0x116/0x1d0 [ 22.096042] ret_from_fork_asm+0x1a/0x30 [ 22.096399] [ 22.096553] The buggy address belongs to the object at ffff888103958d00 [ 22.096553] which belongs to the cache kmalloc-64 of size 64 [ 22.097745] The buggy address is located 4 bytes inside of [ 22.097745] allocated 64-byte region [ffff888103958d00, ffff888103958d40) [ 22.098330] [ 22.098433] The buggy address belongs to the physical page: [ 22.098632] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103958 [ 22.098868] flags: 0x200000000000000(node=0|zone=2) [ 22.099198] page_type: f5(slab) [ 22.099512] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 22.100218] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 22.100945] page dumped because: kasan: bad access detected [ 22.101483] [ 22.101629] Memory state around the buggy address: [ 22.101838] ffff888103958c00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.102089] ffff888103958c80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.102428] >ffff888103958d00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 22.103050] ^ [ 22.103383] ffff888103958d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.103588] ffff888103958e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.103788] ==================================================================