Date
July 4, 2025, 11:11 p.m.
Environment | |
---|---|
qemu-x86_64 |
[ 12.139996] ================================================================== [ 12.140898] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.141765] Read of size 64 at addr ffff888102639b04 by task kunit_try_catch/199 [ 12.142610] [ 12.142719] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 12.142770] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.142782] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.142806] Call Trace: [ 12.142823] <TASK> [ 12.142845] dump_stack_lvl+0x73/0xb0 [ 12.142883] print_report+0xd1/0x650 [ 12.142906] ? __virt_addr_valid+0x1db/0x2d0 [ 12.142931] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.142954] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.142975] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.142997] kasan_report+0x141/0x180 [ 12.143018] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.143045] kasan_check_range+0x10c/0x1c0 [ 12.143067] __asan_memmove+0x27/0x70 [ 12.143086] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.143108] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.143132] ? __schedule+0x10cc/0x2b60 [ 12.143153] ? __pfx_read_tsc+0x10/0x10 [ 12.143173] ? ktime_get_ts64+0x86/0x230 [ 12.143210] kunit_try_run_case+0x1a5/0x480 [ 12.143252] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.143273] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.143296] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.143317] ? __kthread_parkme+0x82/0x180 [ 12.143338] ? preempt_count_sub+0x50/0x80 [ 12.143361] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.143383] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.143404] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.143425] kthread+0x337/0x6f0 [ 12.143489] ? trace_preempt_on+0x20/0xc0 [ 12.143513] ? __pfx_kthread+0x10/0x10 [ 12.143532] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.143552] ? calculate_sigpending+0x7b/0xa0 [ 12.143587] ? __pfx_kthread+0x10/0x10 [ 12.143607] ret_from_fork+0x116/0x1d0 [ 12.143624] ? __pfx_kthread+0x10/0x10 [ 12.143644] ret_from_fork_asm+0x1a/0x30 [ 12.143675] </TASK> [ 12.143685] [ 12.158392] Allocated by task 199: [ 12.158773] kasan_save_stack+0x45/0x70 [ 12.159265] kasan_save_track+0x18/0x40 [ 12.160116] kasan_save_alloc_info+0x3b/0x50 [ 12.160568] __kasan_kmalloc+0xb7/0xc0 [ 12.160973] __kmalloc_cache_noprof+0x189/0x420 [ 12.161425] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.161706] kunit_try_run_case+0x1a5/0x480 [ 12.161860] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.162035] kthread+0x337/0x6f0 [ 12.162156] ret_from_fork+0x116/0x1d0 [ 12.162779] ret_from_fork_asm+0x1a/0x30 [ 12.163159] [ 12.163343] The buggy address belongs to the object at ffff888102639b00 [ 12.163343] which belongs to the cache kmalloc-64 of size 64 [ 12.164653] The buggy address is located 4 bytes inside of [ 12.164653] allocated 64-byte region [ffff888102639b00, ffff888102639b40) [ 12.165787] [ 12.165920] The buggy address belongs to the physical page: [ 12.166094] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102639 [ 12.166945] flags: 0x200000000000000(node=0|zone=2) [ 12.167423] page_type: f5(slab) [ 12.167842] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.168584] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.168827] page dumped because: kasan: bad access detected [ 12.168999] [ 12.169069] Memory state around the buggy address: [ 12.169310] ffff888102639a00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.169972] ffff888102639a80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.170692] >ffff888102639b00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.171745] ^ [ 12.172294] ffff888102639b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.172991] ffff888102639c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.173540] ==================================================================