Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.404292] ================================================================== [ 32.404399] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 32.404486] Write of size 4 at addr fff00000c9726675 by task kunit_try_catch/206 [ 32.404538] [ 32.404607] CPU: 1 UID: 0 PID: 206 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 32.404774] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.404844] Hardware name: linux,dummy-virt (DT) [ 32.404876] Call trace: [ 32.404898] show_stack+0x20/0x38 (C) [ 32.405122] dump_stack_lvl+0x8c/0xd0 [ 32.405344] print_report+0x118/0x5e8 [ 32.405459] kasan_report+0xdc/0x128 [ 32.405520] kasan_check_range+0x100/0x1a8 [ 32.405671] __asan_memset+0x34/0x78 [ 32.405920] kmalloc_oob_memset_4+0x150/0x300 [ 32.406081] kunit_try_run_case+0x170/0x3f0 [ 32.406372] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.406450] kthread+0x328/0x630 [ 32.406492] ret_from_fork+0x10/0x20 [ 32.406538] [ 32.406938] Allocated by task 206: [ 32.407178] kasan_save_stack+0x3c/0x68 [ 32.407334] kasan_save_track+0x20/0x40 [ 32.407370] kasan_save_alloc_info+0x40/0x58 [ 32.407408] __kasan_kmalloc+0xd4/0xd8 [ 32.407698] __kmalloc_cache_noprof+0x16c/0x3c0 [ 32.407909] kmalloc_oob_memset_4+0xb0/0x300 [ 32.407994] kunit_try_run_case+0x170/0x3f0 [ 32.408243] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.408599] kthread+0x328/0x630 [ 32.408784] ret_from_fork+0x10/0x20 [ 32.408891] [ 32.408995] The buggy address belongs to the object at fff00000c9726600 [ 32.408995] which belongs to the cache kmalloc-128 of size 128 [ 32.409053] The buggy address is located 117 bytes inside of [ 32.409053] allocated 120-byte region [fff00000c9726600, fff00000c9726678) [ 32.409177] [ 32.409245] The buggy address belongs to the physical page: [ 32.409472] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109726 [ 32.409532] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.409725] page_type: f5(slab) [ 32.409776] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 32.409824] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 32.409862] page dumped because: kasan: bad access detected [ 32.409894] [ 32.409923] Memory state around the buggy address: [ 32.409979] fff00000c9726500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.410022] fff00000c9726580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.410063] >fff00000c9726600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 32.410099] ^ [ 32.410154] fff00000c9726680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.410195] fff00000c9726700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.410241] ==================================================================
[ 25.845384] ================================================================== [ 25.846546] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 25.847302] Write of size 4 at addr ffff8881046caf75 by task kunit_try_catch/223 [ 25.848190] [ 25.848420] CPU: 1 UID: 0 PID: 223 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 25.848470] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.848482] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.848503] Call Trace: [ 25.848516] <TASK> [ 25.848533] dump_stack_lvl+0x73/0xb0 [ 25.848598] print_report+0xd1/0x640 [ 25.848623] ? __virt_addr_valid+0x1db/0x2d0 [ 25.848648] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.848681] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.848708] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.848731] kasan_report+0x141/0x180 [ 25.848753] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.848839] kasan_check_range+0x10c/0x1c0 [ 25.848870] __asan_memset+0x27/0x50 [ 25.848894] kmalloc_oob_memset_4+0x166/0x330 [ 25.848917] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 25.848941] ? __schedule+0x2070/0x2b60 [ 25.848976] ? __pfx_read_tsc+0x10/0x10 [ 25.848999] ? ktime_get_ts64+0x86/0x230 [ 25.849025] kunit_try_run_case+0x1a5/0x480 [ 25.849058] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.849081] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.849103] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.849133] ? __kthread_parkme+0x82/0x180 [ 25.849154] ? preempt_count_sub+0x50/0x80 [ 25.849178] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.849202] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.849227] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.849252] kthread+0x337/0x6f0 [ 25.849272] ? trace_preempt_on+0x20/0xc0 [ 25.849296] ? __pfx_kthread+0x10/0x10 [ 25.849317] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.849342] ? calculate_sigpending+0x7b/0xa0 [ 25.849368] ? __pfx_kthread+0x10/0x10 [ 25.849389] ret_from_fork+0x116/0x1d0 [ 25.849409] ? __pfx_kthread+0x10/0x10 [ 25.849430] ret_from_fork_asm+0x1a/0x30 [ 25.849462] </TASK> [ 25.849474] [ 25.863932] Allocated by task 223: [ 25.864370] kasan_save_stack+0x45/0x70 [ 25.864671] kasan_save_track+0x18/0x40 [ 25.866155] kasan_save_alloc_info+0x3b/0x50 [ 25.866316] __kasan_kmalloc+0xb7/0xc0 [ 25.866449] __kmalloc_cache_noprof+0x189/0x420 [ 25.866605] kmalloc_oob_memset_4+0xac/0x330 [ 25.866752] kunit_try_run_case+0x1a5/0x480 [ 25.866897] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.868054] kthread+0x337/0x6f0 [ 25.868375] ret_from_fork+0x116/0x1d0 [ 25.868710] ret_from_fork_asm+0x1a/0x30 [ 25.869066] [ 25.869215] The buggy address belongs to the object at ffff8881046caf00 [ 25.869215] which belongs to the cache kmalloc-128 of size 128 [ 25.871195] The buggy address is located 117 bytes inside of [ 25.871195] allocated 120-byte region [ffff8881046caf00, ffff8881046caf78) [ 25.873160] [ 25.873645] The buggy address belongs to the physical page: [ 25.874414] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1046ca [ 25.875465] flags: 0x200000000000000(node=0|zone=2) [ 25.876233] page_type: f5(slab) [ 25.876548] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.877683] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.879009] page dumped because: kasan: bad access detected [ 25.879493] [ 25.879677] Memory state around the buggy address: [ 25.880932] ffff8881046cae00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.881652] ffff8881046cae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.882594] >ffff8881046caf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.883603] ^ [ 25.884657] ffff8881046caf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.885980] ffff8881046cb000: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 25.886687] ==================================================================