Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.625012] ================================================================== [ 30.625544] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 30.625616] Write of size 2 at addr fff00000c6361a77 by task kunit_try_catch/203 [ 30.625930] [ 30.625981] CPU: 0 UID: 0 PID: 203 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 30.626070] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.626097] Hardware name: linux,dummy-virt (DT) [ 30.626464] Call trace: [ 30.626599] show_stack+0x20/0x38 (C) [ 30.626673] dump_stack_lvl+0x8c/0xd0 [ 30.626727] print_report+0x118/0x5d0 [ 30.626986] kasan_report+0xdc/0x128 [ 30.627051] kasan_check_range+0x100/0x1a8 [ 30.627541] __asan_memset+0x34/0x78 [ 30.627649] kmalloc_oob_memset_2+0x150/0x2f8 [ 30.627725] kunit_try_run_case+0x170/0x3f0 [ 30.627953] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.628164] kthread+0x328/0x630 [ 30.628367] ret_from_fork+0x10/0x20 [ 30.628497] [ 30.628705] Allocated by task 203: [ 30.628851] kasan_save_stack+0x3c/0x68 [ 30.629007] kasan_save_track+0x20/0x40 [ 30.629066] kasan_save_alloc_info+0x40/0x58 [ 30.629268] __kasan_kmalloc+0xd4/0xd8 [ 30.629488] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.629564] kmalloc_oob_memset_2+0xb0/0x2f8 [ 30.629727] kunit_try_run_case+0x170/0x3f0 [ 30.629892] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.630038] kthread+0x328/0x630 [ 30.630076] ret_from_fork+0x10/0x20 [ 30.630112] [ 30.630148] The buggy address belongs to the object at fff00000c6361a00 [ 30.630148] which belongs to the cache kmalloc-128 of size 128 [ 30.630208] The buggy address is located 119 bytes inside of [ 30.630208] allocated 120-byte region [fff00000c6361a00, fff00000c6361a78) [ 30.630281] [ 30.630317] The buggy address belongs to the physical page: [ 30.630362] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106361 [ 30.630419] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.630485] page_type: f5(slab) [ 30.630547] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 30.630606] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.630652] page dumped because: kasan: bad access detected [ 30.630689] [ 30.630707] Memory state around the buggy address: [ 30.630756] fff00000c6361900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.630799] fff00000c6361980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.630857] >fff00000c6361a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.630895] ^ [ 30.630935] fff00000c6361a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.630995] fff00000c6361b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.631033] ==================================================================
[ 23.343424] ================================================================== [ 23.344574] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 23.344815] Write of size 2 at addr ffff88810539f977 by task kunit_try_catch/221 [ 23.345034] [ 23.345111] CPU: 0 UID: 0 PID: 221 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 23.345158] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.345171] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.345190] Call Trace: [ 23.345202] <TASK> [ 23.345218] dump_stack_lvl+0x73/0xb0 [ 23.345247] print_report+0xd1/0x610 [ 23.345564] ? __virt_addr_valid+0x1db/0x2d0 [ 23.346164] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.346191] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.346218] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.346240] kasan_report+0x141/0x180 [ 23.346263] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.346354] kasan_check_range+0x10c/0x1c0 [ 23.346377] __asan_memset+0x27/0x50 [ 23.346399] kmalloc_oob_memset_2+0x166/0x330 [ 23.346421] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 23.346442] ? __schedule+0x10c6/0x2b60 [ 23.346465] ? __pfx_read_tsc+0x10/0x10 [ 23.346487] ? ktime_get_ts64+0x86/0x230 [ 23.346512] kunit_try_run_case+0x1a5/0x480 [ 23.346555] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.346577] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.346599] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.346620] ? __kthread_parkme+0x82/0x180 [ 23.346640] ? preempt_count_sub+0x50/0x80 [ 23.346662] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.346684] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.346710] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.346735] kthread+0x337/0x6f0 [ 23.346754] ? trace_preempt_on+0x20/0xc0 [ 23.346777] ? __pfx_kthread+0x10/0x10 [ 23.346797] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.346817] ? calculate_sigpending+0x7b/0xa0 [ 23.346841] ? __pfx_kthread+0x10/0x10 [ 23.346880] ret_from_fork+0x116/0x1d0 [ 23.346899] ? __pfx_kthread+0x10/0x10 [ 23.346919] ret_from_fork_asm+0x1a/0x30 [ 23.346948] </TASK> [ 23.346959] [ 23.358643] Allocated by task 221: [ 23.358812] kasan_save_stack+0x45/0x70 [ 23.359671] kasan_save_track+0x18/0x40 [ 23.360283] kasan_save_alloc_info+0x3b/0x50 [ 23.360779] __kasan_kmalloc+0xb7/0xc0 [ 23.361049] __kmalloc_cache_noprof+0x189/0x420 [ 23.361235] kmalloc_oob_memset_2+0xac/0x330 [ 23.361453] kunit_try_run_case+0x1a5/0x480 [ 23.361975] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.362300] kthread+0x337/0x6f0 [ 23.362477] ret_from_fork+0x116/0x1d0 [ 23.362718] ret_from_fork_asm+0x1a/0x30 [ 23.363290] [ 23.363496] The buggy address belongs to the object at ffff88810539f900 [ 23.363496] which belongs to the cache kmalloc-128 of size 128 [ 23.364458] The buggy address is located 119 bytes inside of [ 23.364458] allocated 120-byte region [ffff88810539f900, ffff88810539f978) [ 23.365182] [ 23.365291] The buggy address belongs to the physical page: [ 23.365859] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10539f [ 23.366278] flags: 0x200000000000000(node=0|zone=2) [ 23.366548] page_type: f5(slab) [ 23.366730] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 23.367031] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.367363] page dumped because: kasan: bad access detected [ 23.367725] [ 23.367838] Memory state around the buggy address: [ 23.368090] ffff88810539f800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.368617] ffff88810539f880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.369028] >ffff88810539f900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 23.369327] ^ [ 23.369539] ffff88810539f980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.370056] ffff88810539fa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.370404] ==================================================================