Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-x86_64 |
[ 12.659068] ================================================================== [ 12.659543] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 12.660121] Write of size 16 at addr ffff888102791769 by task kunit_try_catch/195 [ 12.660451] [ 12.660579] CPU: 1 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.660620] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.660631] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.660649] Call Trace: [ 12.660661] <TASK> [ 12.660674] dump_stack_lvl+0x73/0xb0 [ 12.660704] print_report+0xd1/0x650 [ 12.660726] ? __virt_addr_valid+0x1db/0x2d0 [ 12.660767] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.660790] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.660813] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.660917] kasan_report+0x141/0x180 [ 12.660961] ? kmalloc_oob_memset_16+0x166/0x330 [ 12.661003] kasan_check_range+0x10c/0x1c0 [ 12.661027] __asan_memset+0x27/0x50 [ 12.661218] kmalloc_oob_memset_16+0x166/0x330 [ 12.661242] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 12.661266] ? __schedule+0x10cc/0x2b60 [ 12.661288] ? __pfx_read_tsc+0x10/0x10 [ 12.661309] ? ktime_get_ts64+0x86/0x230 [ 12.661333] kunit_try_run_case+0x1a5/0x480 [ 12.661358] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.661380] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.661404] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.661428] ? __kthread_parkme+0x82/0x180 [ 12.661448] ? preempt_count_sub+0x50/0x80 [ 12.661471] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.661495] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.661519] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.661544] kthread+0x337/0x6f0 [ 12.661562] ? trace_preempt_on+0x20/0xc0 [ 12.661585] ? __pfx_kthread+0x10/0x10 [ 12.661606] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.661627] ? calculate_sigpending+0x7b/0xa0 [ 12.661650] ? __pfx_kthread+0x10/0x10 [ 12.661671] ret_from_fork+0x116/0x1d0 [ 12.661689] ? __pfx_kthread+0x10/0x10 [ 12.661709] ret_from_fork_asm+0x1a/0x30 [ 12.661740] </TASK> [ 12.661750] [ 12.669758] Allocated by task 195: [ 12.669990] kasan_save_stack+0x45/0x70 [ 12.670293] kasan_save_track+0x18/0x40 [ 12.670487] kasan_save_alloc_info+0x3b/0x50 [ 12.670696] __kasan_kmalloc+0xb7/0xc0 [ 12.670995] __kmalloc_cache_noprof+0x189/0x420 [ 12.671171] kmalloc_oob_memset_16+0xac/0x330 [ 12.671372] kunit_try_run_case+0x1a5/0x480 [ 12.671578] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.671940] kthread+0x337/0x6f0 [ 12.672140] ret_from_fork+0x116/0x1d0 [ 12.672293] ret_from_fork_asm+0x1a/0x30 [ 12.672484] [ 12.672554] The buggy address belongs to the object at ffff888102791700 [ 12.672554] which belongs to the cache kmalloc-128 of size 128 [ 12.673475] The buggy address is located 105 bytes inside of [ 12.673475] allocated 120-byte region [ffff888102791700, ffff888102791778) [ 12.674334] [ 12.674441] The buggy address belongs to the physical page: [ 12.674650] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102791 [ 12.675284] flags: 0x200000000000000(node=0|zone=2) [ 12.675545] page_type: f5(slab) [ 12.675710] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.676160] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.676504] page dumped because: kasan: bad access detected [ 12.676689] [ 12.676783] Memory state around the buggy address: [ 12.677072] ffff888102791600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.677574] ffff888102791680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.677804] >ffff888102791700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.678348] ^ [ 12.678651] ffff888102791780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.679146] ffff888102791800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.679468] ==================================================================