Date
July 8, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.158168] ================================================================== [ 31.158260] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 31.158317] Write of size 2 at addr fff00000c9a9c377 by task kunit_try_catch/203 [ 31.158370] [ 31.158400] CPU: 0 UID: 0 PID: 203 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT [ 31.158489] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.158515] Hardware name: linux,dummy-virt (DT) [ 31.158544] Call trace: [ 31.158575] show_stack+0x20/0x38 (C) [ 31.158630] dump_stack_lvl+0x8c/0xd0 [ 31.158677] print_report+0x118/0x5d0 [ 31.158723] kasan_report+0xdc/0x128 [ 31.158769] kasan_check_range+0x100/0x1a8 [ 31.158814] __asan_memset+0x34/0x78 [ 31.158856] kmalloc_oob_memset_2+0x150/0x2f8 [ 31.159084] kunit_try_run_case+0x170/0x3f0 [ 31.159142] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.159217] kthread+0x328/0x630 [ 31.159261] ret_from_fork+0x10/0x20 [ 31.159329] [ 31.159358] Allocated by task 203: [ 31.159386] kasan_save_stack+0x3c/0x68 [ 31.159428] kasan_save_track+0x20/0x40 [ 31.159484] kasan_save_alloc_info+0x40/0x58 [ 31.159521] __kasan_kmalloc+0xd4/0xd8 [ 31.159574] __kmalloc_cache_noprof+0x16c/0x3c0 [ 31.159633] kmalloc_oob_memset_2+0xb0/0x2f8 [ 31.159671] kunit_try_run_case+0x170/0x3f0 [ 31.159719] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.159763] kthread+0x328/0x630 [ 31.159795] ret_from_fork+0x10/0x20 [ 31.159830] [ 31.159848] The buggy address belongs to the object at fff00000c9a9c300 [ 31.159848] which belongs to the cache kmalloc-128 of size 128 [ 31.159902] The buggy address is located 119 bytes inside of [ 31.159902] allocated 120-byte region [fff00000c9a9c300, fff00000c9a9c378) [ 31.159963] [ 31.159982] The buggy address belongs to the physical page: [ 31.160011] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a9c [ 31.160083] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.160128] page_type: f5(slab) [ 31.160296] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 31.160376] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 31.160417] page dumped because: kasan: bad access detected [ 31.160449] [ 31.160483] Memory state around the buggy address: [ 31.160521] fff00000c9a9c200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.160670] fff00000c9a9c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.160712] >fff00000c9a9c300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 31.160749] ^ [ 31.160788] fff00000c9a9c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.160842] fff00000c9a9c400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.160904] ==================================================================
[ 23.419011] ================================================================== [ 23.419558] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 23.420486] Write of size 2 at addr ffff8881059ac677 by task kunit_try_catch/220 [ 23.420842] [ 23.421224] CPU: 0 UID: 0 PID: 220 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) [ 23.421296] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.421308] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.421331] Call Trace: [ 23.421345] <TASK> [ 23.421364] dump_stack_lvl+0x73/0xb0 [ 23.421398] print_report+0xd1/0x610 [ 23.421421] ? __virt_addr_valid+0x1db/0x2d0 [ 23.421446] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.421469] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.421499] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.421521] kasan_report+0x141/0x180 [ 23.421545] ? kmalloc_oob_memset_2+0x166/0x330 [ 23.421571] kasan_check_range+0x10c/0x1c0 [ 23.421598] __asan_memset+0x27/0x50 [ 23.421625] kmalloc_oob_memset_2+0x166/0x330 [ 23.421648] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 23.421671] ? __schedule+0x10cc/0x2b60 [ 23.421700] ? __pfx_read_tsc+0x10/0x10 [ 23.421726] ? ktime_get_ts64+0x86/0x230 [ 23.421772] kunit_try_run_case+0x1a5/0x480 [ 23.421797] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.421826] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.421849] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.421880] ? __kthread_parkme+0x82/0x180 [ 23.421902] ? preempt_count_sub+0x50/0x80 [ 23.421927] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.421950] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.421977] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.422004] kthread+0x337/0x6f0 [ 23.422026] ? trace_preempt_on+0x20/0xc0 [ 23.422051] ? __pfx_kthread+0x10/0x10 [ 23.422074] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.422101] ? calculate_sigpending+0x7b/0xa0 [ 23.422128] ? __pfx_kthread+0x10/0x10 [ 23.422152] ret_from_fork+0x116/0x1d0 [ 23.422172] ? __pfx_kthread+0x10/0x10 [ 23.422194] ret_from_fork_asm+0x1a/0x30 [ 23.422229] </TASK> [ 23.422251] [ 23.429819] Allocated by task 220: [ 23.430009] kasan_save_stack+0x45/0x70 [ 23.430208] kasan_save_track+0x18/0x40 [ 23.430362] kasan_save_alloc_info+0x3b/0x50 [ 23.430569] __kasan_kmalloc+0xb7/0xc0 [ 23.430703] __kmalloc_cache_noprof+0x189/0x420 [ 23.431071] kmalloc_oob_memset_2+0xac/0x330 [ 23.431284] kunit_try_run_case+0x1a5/0x480 [ 23.431435] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.431606] kthread+0x337/0x6f0 [ 23.431975] ret_from_fork+0x116/0x1d0 [ 23.432181] ret_from_fork_asm+0x1a/0x30 [ 23.432481] [ 23.432573] The buggy address belongs to the object at ffff8881059ac600 [ 23.432573] which belongs to the cache kmalloc-128 of size 128 [ 23.433153] The buggy address is located 119 bytes inside of [ 23.433153] allocated 120-byte region [ffff8881059ac600, ffff8881059ac678) [ 23.433654] [ 23.433747] The buggy address belongs to the physical page: [ 23.434041] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059ac [ 23.434356] flags: 0x200000000000000(node=0|zone=2) [ 23.434516] page_type: f5(slab) [ 23.434634] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 23.434859] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.435145] page dumped because: kasan: bad access detected [ 23.435396] [ 23.435482] Memory state around the buggy address: [ 23.435783] ffff8881059ac500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.436057] ffff8881059ac580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.436279] >ffff8881059ac600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 23.436483] ^ [ 23.436705] ffff8881059ac680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.437404] ffff8881059ac700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.437721] ==================================================================