Date
July 10, 2025, 9:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.470115] ================================================================== [ 29.470191] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0 [ 29.470243] Write of size 128 at addr fff00000c5a4df00 by task kunit_try_catch/201 [ 29.470293] [ 29.470403] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT [ 29.470731] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.470818] Hardware name: linux,dummy-virt (DT) [ 29.470854] Call trace: [ 29.470894] show_stack+0x20/0x38 (C) [ 29.471002] dump_stack_lvl+0x8c/0xd0 [ 29.471047] print_report+0x118/0x5d0 [ 29.471088] kasan_report+0xdc/0x128 [ 29.471139] kasan_check_range+0x100/0x1a8 [ 29.471183] __asan_memset+0x34/0x78 [ 29.471235] kmalloc_oob_in_memset+0x144/0x2d0 [ 29.471292] kunit_try_run_case+0x170/0x3f0 [ 29.471340] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.471409] kthread+0x328/0x630 [ 29.471449] ret_from_fork+0x10/0x20 [ 29.471497] [ 29.471523] Allocated by task 201: [ 29.471550] kasan_save_stack+0x3c/0x68 [ 29.471684] kasan_save_track+0x20/0x40 [ 29.471724] kasan_save_alloc_info+0x40/0x58 [ 29.472152] __kasan_kmalloc+0xd4/0xd8 [ 29.472197] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.472236] kmalloc_oob_in_memset+0xb0/0x2d0 [ 29.472274] kunit_try_run_case+0x170/0x3f0 [ 29.472312] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.472395] kthread+0x328/0x630 [ 29.472547] ret_from_fork+0x10/0x20 [ 29.472697] [ 29.472718] The buggy address belongs to the object at fff00000c5a4df00 [ 29.472718] which belongs to the cache kmalloc-128 of size 128 [ 29.472821] The buggy address is located 0 bytes inside of [ 29.472821] allocated 120-byte region [fff00000c5a4df00, fff00000c5a4df78) [ 29.472991] [ 29.473094] The buggy address belongs to the physical page: [ 29.473125] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a4d [ 29.473187] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.473235] page_type: f5(slab) [ 29.473273] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.473322] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.473373] page dumped because: kasan: bad access detected [ 29.473403] [ 29.473422] Memory state around the buggy address: [ 29.473464] fff00000c5a4de00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.473507] fff00000c5a4de80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.473549] >fff00000c5a4df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.473587] ^ [ 29.473626] fff00000c5a4df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.473678] fff00000c5a4e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.473717] ==================================================================
[ 25.079242] ================================================================== [ 25.079615] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320 [ 25.080546] Write of size 128 at addr ffff888105182900 by task kunit_try_catch/218 [ 25.081618] [ 25.082003] CPU: 1 UID: 0 PID: 218 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) [ 25.082061] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.082074] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.082097] Call Trace: [ 25.082112] <TASK> [ 25.082132] dump_stack_lvl+0x73/0xb0 [ 25.082165] print_report+0xd1/0x610 [ 25.082190] ? __virt_addr_valid+0x1db/0x2d0 [ 25.082216] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.082239] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.082265] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.082288] kasan_report+0x141/0x180 [ 25.082311] ? kmalloc_oob_in_memset+0x15f/0x320 [ 25.082338] kasan_check_range+0x10c/0x1c0 [ 25.082362] __asan_memset+0x27/0x50 [ 25.082386] kmalloc_oob_in_memset+0x15f/0x320 [ 25.082409] ? __pfx_kmalloc_oob_in_memset+0x10/0x10 [ 25.082433] ? __schedule+0x10cc/0x2b60 [ 25.082457] ? __pfx_read_tsc+0x10/0x10 [ 25.082479] ? ktime_get_ts64+0x86/0x230 [ 25.082684] kunit_try_run_case+0x1a5/0x480 [ 25.082735] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.082757] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.082831] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.082859] ? __kthread_parkme+0x82/0x180 [ 25.082881] ? preempt_count_sub+0x50/0x80 [ 25.082906] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.082929] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.082955] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.082981] kthread+0x337/0x6f0 [ 25.083001] ? trace_preempt_on+0x20/0xc0 [ 25.083026] ? __pfx_kthread+0x10/0x10 [ 25.083048] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.083070] ? calculate_sigpending+0x7b/0xa0 [ 25.083096] ? __pfx_kthread+0x10/0x10 [ 25.083118] ret_from_fork+0x116/0x1d0 [ 25.083137] ? __pfx_kthread+0x10/0x10 [ 25.083158] ret_from_fork_asm+0x1a/0x30 [ 25.083191] </TASK> [ 25.083203] [ 25.095478] Allocated by task 218: [ 25.095807] kasan_save_stack+0x45/0x70 [ 25.096270] kasan_save_track+0x18/0x40 [ 25.096459] kasan_save_alloc_info+0x3b/0x50 [ 25.096897] __kasan_kmalloc+0xb7/0xc0 [ 25.097244] __kmalloc_cache_noprof+0x189/0x420 [ 25.097598] kmalloc_oob_in_memset+0xac/0x320 [ 25.097761] kunit_try_run_case+0x1a5/0x480 [ 25.098326] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.098927] kthread+0x337/0x6f0 [ 25.099179] ret_from_fork+0x116/0x1d0 [ 25.099312] ret_from_fork_asm+0x1a/0x30 [ 25.099450] [ 25.099562] The buggy address belongs to the object at ffff888105182900 [ 25.099562] which belongs to the cache kmalloc-128 of size 128 [ 25.100936] The buggy address is located 0 bytes inside of [ 25.100936] allocated 120-byte region [ffff888105182900, ffff888105182978) [ 25.101906] [ 25.102090] The buggy address belongs to the physical page: [ 25.102607] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105182 [ 25.103237] flags: 0x200000000000000(node=0|zone=2) [ 25.103406] page_type: f5(slab) [ 25.103546] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.104370] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.105266] page dumped because: kasan: bad access detected [ 25.105752] [ 25.106056] Memory state around the buggy address: [ 25.106275] ffff888105182800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.106489] ffff888105182880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.107217] >ffff888105182900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.108008] ^ [ 25.108459] ffff888105182980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.109175] ffff888105182a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.109670] ==================================================================