Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-x86_64 |
[ 12.190253] ================================================================== [ 12.191159] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 12.191502] Write of size 16 at addr ffff8881027d6b69 by task kunit_try_catch/195 [ 12.191915] [ 12.192046] CPU: 1 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.192088] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.192099] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.192120] Call Trace: [ 12.192131] <TASK> [ 12.192145] dump_stack_lvl+0x73/0xb0 [ 12.192175] print_report+0xd1/0x610 [ 12.192196] ? __virt_addr_valid+0x1db/0x2d0 [ 12.192218] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.192238] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.192258] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.192279] kasan_report+0x141/0x180 [ 12.192300] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.192325] kasan_check_range+0x10c/0x1c0 [ 12.192347] __asan_memset+0x27/0x50 [ 12.192365] kmalloc_oob_memset_16+0x166/0x330 [ 12.192408] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 12.192429] ? __schedule+0x10cc/0x2b60 [ 12.192451] ? __pfx_read_tsc+0x10/0x10 [ 12.192471] ? ktime_get_ts64+0x86/0x230 [ 12.192494] kunit_try_run_case+0x1a5/0x480 [ 12.192519] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.192540] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.192562] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.192584] ? __kthread_parkme+0x82/0x180 [ 12.192604] ? preempt_count_sub+0x50/0x80 [ 12.192626] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.192650] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.192671] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.192693] kthread+0x337/0x6f0 [ 12.192712] ? trace_preempt_on+0x20/0xc0 [ 12.192734] ? __pfx_kthread+0x10/0x10 [ 12.192753] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.192773] ? calculate_sigpending+0x7b/0xa0 [ 12.192795] ? __pfx_kthread+0x10/0x10 [ 12.192816] ret_from_fork+0x116/0x1d0 [ 12.192833] ? __pfx_kthread+0x10/0x10 [ 12.192852] ret_from_fork_asm+0x1a/0x30 [ 12.192881] </TASK> [ 12.192891] [ 12.200798] Allocated by task 195: [ 12.200953] kasan_save_stack+0x45/0x70 [ 12.201184] kasan_save_track+0x18/0x40 [ 12.201752] kasan_save_alloc_info+0x3b/0x50 [ 12.202001] __kasan_kmalloc+0xb7/0xc0 [ 12.202195] __kmalloc_cache_noprof+0x189/0x420 [ 12.202412] kmalloc_oob_memset_16+0xac/0x330 [ 12.202579] kunit_try_run_case+0x1a5/0x480 [ 12.202724] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.202976] kthread+0x337/0x6f0 [ 12.203160] ret_from_fork+0x116/0x1d0 [ 12.203749] ret_from_fork_asm+0x1a/0x30 [ 12.203975] [ 12.204085] The buggy address belongs to the object at ffff8881027d6b00 [ 12.204085] which belongs to the cache kmalloc-128 of size 128 [ 12.205352] The buggy address is located 105 bytes inside of [ 12.205352] allocated 120-byte region [ffff8881027d6b00, ffff8881027d6b78) [ 12.206028] [ 12.206109] The buggy address belongs to the physical page: [ 12.206515] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027d6 [ 12.206884] flags: 0x200000000000000(node=0|zone=2) [ 12.207067] page_type: f5(slab) [ 12.207189] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.207464] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.207810] page dumped because: kasan: bad access detected [ 12.208120] [ 12.208216] Memory state around the buggy address: [ 12.208375] ffff8881027d6a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.208653] ffff8881027d6a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.208988] >ffff8881027d6b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.209312] ^ [ 12.209755] ffff8881027d6b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.210042] ffff8881027d6c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.210343] ==================================================================