Date
July 23, 2025, 3:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.466204] ================================================================== [ 30.466274] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 30.466413] Write of size 16 at addr fff00000c99bcd69 by task kunit_try_catch/211 [ 30.466465] [ 30.466786] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 30.467006] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.467067] Hardware name: linux,dummy-virt (DT) [ 30.467105] Call trace: [ 30.467143] show_stack+0x20/0x38 (C) [ 30.467251] dump_stack_lvl+0x8c/0xd0 [ 30.467297] print_report+0x118/0x5e8 [ 30.467339] kasan_report+0xdc/0x128 [ 30.467386] kasan_check_range+0x100/0x1a8 [ 30.467429] __asan_memset+0x34/0x78 [ 30.467615] kmalloc_oob_memset_16+0x150/0x2f8 [ 30.467678] kunit_try_run_case+0x170/0x3f0 [ 30.467725] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.467911] kthread+0x328/0x630 [ 30.467968] ret_from_fork+0x10/0x20 [ 30.468017] [ 30.468035] Allocated by task 211: [ 30.468062] kasan_save_stack+0x3c/0x68 [ 30.468101] kasan_save_track+0x20/0x40 [ 30.468135] kasan_save_alloc_info+0x40/0x58 [ 30.468171] __kasan_kmalloc+0xd4/0xd8 [ 30.468204] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.468244] kmalloc_oob_memset_16+0xb0/0x2f8 [ 30.468281] kunit_try_run_case+0x170/0x3f0 [ 30.468317] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.468358] kthread+0x328/0x630 [ 30.468389] ret_from_fork+0x10/0x20 [ 30.468423] [ 30.468515] The buggy address belongs to the object at fff00000c99bcd00 [ 30.468515] which belongs to the cache kmalloc-128 of size 128 [ 30.468826] The buggy address is located 105 bytes inside of [ 30.468826] allocated 120-byte region [fff00000c99bcd00, fff00000c99bcd78) [ 30.469479] [ 30.469523] The buggy address belongs to the physical page: [ 30.469663] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099bc [ 30.469778] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.469959] page_type: f5(slab) [ 30.470014] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 30.470168] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.470278] page dumped because: kasan: bad access detected [ 30.470334] [ 30.470361] Memory state around the buggy address: [ 30.470585] fff00000c99bcc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.470822] fff00000c99bcc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.470873] >fff00000c99bcd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.471088] ^ [ 30.471691] fff00000c99bcd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.471762] fff00000c99bce00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.472060] ==================================================================
[ 25.328736] ================================================================== [ 25.330163] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 25.330957] Write of size 16 at addr ffff888104964569 by task kunit_try_catch/227 [ 25.331535] [ 25.331651] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 25.331711] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.331724] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.331748] Call Trace: [ 25.331764] <TASK> [ 25.331786] dump_stack_lvl+0x73/0xb0 [ 25.331822] print_report+0xd1/0x640 [ 25.331847] ? __virt_addr_valid+0x1db/0x2d0 [ 25.331874] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.331896] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.331922] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.331944] kasan_report+0x141/0x180 [ 25.331967] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.331993] kasan_check_range+0x10c/0x1c0 [ 25.332017] __asan_memset+0x27/0x50 [ 25.332077] kmalloc_oob_memset_16+0x166/0x330 [ 25.332101] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 25.332124] ? __schedule+0x10da/0x2b60 [ 25.332170] ? __pfx_read_tsc+0x10/0x10 [ 25.332193] ? ktime_get_ts64+0x86/0x230 [ 25.332220] kunit_try_run_case+0x1a5/0x480 [ 25.332277] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.332300] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.332325] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.332362] ? __kthread_parkme+0x82/0x180 [ 25.332395] ? preempt_count_sub+0x50/0x80 [ 25.332420] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.332444] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.332468] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.332491] kthread+0x337/0x6f0 [ 25.332512] ? trace_preempt_on+0x20/0xc0 [ 25.332538] ? __pfx_kthread+0x10/0x10 [ 25.332558] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.332582] ? calculate_sigpending+0x7b/0xa0 [ 25.332608] ? __pfx_kthread+0x10/0x10 [ 25.332629] ret_from_fork+0x116/0x1d0 [ 25.332650] ? __pfx_kthread+0x10/0x10 [ 25.332671] ret_from_fork_asm+0x1a/0x30 [ 25.332709] </TASK> [ 25.332721] [ 25.346632] Allocated by task 227: [ 25.346921] kasan_save_stack+0x45/0x70 [ 25.347251] kasan_save_track+0x18/0x40 [ 25.347388] kasan_save_alloc_info+0x3b/0x50 [ 25.347899] __kasan_kmalloc+0xb7/0xc0 [ 25.348311] __kmalloc_cache_noprof+0x189/0x420 [ 25.348572] kmalloc_oob_memset_16+0xac/0x330 [ 25.349296] kunit_try_run_case+0x1a5/0x480 [ 25.349638] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.349819] kthread+0x337/0x6f0 [ 25.349940] ret_from_fork+0x116/0x1d0 [ 25.350070] ret_from_fork_asm+0x1a/0x30 [ 25.350229] [ 25.350298] The buggy address belongs to the object at ffff888104964500 [ 25.350298] which belongs to the cache kmalloc-128 of size 128 [ 25.351029] The buggy address is located 105 bytes inside of [ 25.351029] allocated 120-byte region [ffff888104964500, ffff888104964578) [ 25.351869] [ 25.352036] The buggy address belongs to the physical page: [ 25.352362] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104964 [ 25.352747] flags: 0x200000000000000(node=0|zone=2) [ 25.352908] page_type: f5(slab) [ 25.353027] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.353509] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.353962] page dumped because: kasan: bad access detected [ 25.354331] [ 25.354551] Memory state around the buggy address: [ 25.354960] ffff888104964400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.355300] ffff888104964480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.355744] >ffff888104964500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.356228] ^ [ 25.356619] ffff888104964580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.356939] ffff888104964600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.357243] ==================================================================