Date
July 9, 2025, 12:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.755154] ================================================================== [ 19.755215] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.755289] Read of size 64 at addr fff00000c63a2184 by task kunit_try_catch/183 [ 19.755342] [ 19.755375] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.755472] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.755511] Hardware name: linux,dummy-virt (DT) [ 19.755543] Call trace: [ 19.755567] show_stack+0x20/0x38 (C) [ 19.755624] dump_stack_lvl+0x8c/0xd0 [ 19.755672] print_report+0x118/0x608 [ 19.755717] kasan_report+0xdc/0x128 [ 19.755763] kasan_check_range+0x100/0x1a8 [ 19.755812] __asan_memmove+0x3c/0x98 [ 19.755854] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.755904] kunit_try_run_case+0x170/0x3f0 [ 19.755953] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.756006] kthread+0x328/0x630 [ 19.756048] ret_from_fork+0x10/0x20 [ 19.756498] [ 19.756529] Allocated by task 183: [ 19.757071] kasan_save_stack+0x3c/0x68 [ 19.757468] kasan_save_track+0x20/0x40 [ 19.757647] kasan_save_alloc_info+0x40/0x58 [ 19.758071] __kasan_kmalloc+0xd4/0xd8 [ 19.758342] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.758496] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.758614] kunit_try_run_case+0x170/0x3f0 [ 19.758703] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.759202] kthread+0x328/0x630 [ 19.759293] ret_from_fork+0x10/0x20 [ 19.759391] [ 19.759425] The buggy address belongs to the object at fff00000c63a2180 [ 19.759425] which belongs to the cache kmalloc-64 of size 64 [ 19.759755] The buggy address is located 4 bytes inside of [ 19.759755] allocated 64-byte region [fff00000c63a2180, fff00000c63a21c0) [ 19.759850] [ 19.759898] The buggy address belongs to the physical page: [ 19.760327] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063a2 [ 19.760417] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.760521] page_type: f5(slab) [ 19.760680] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.760915] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.761044] page dumped because: kasan: bad access detected [ 19.761120] [ 19.761176] Memory state around the buggy address: [ 19.761255] fff00000c63a2080: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.761345] fff00000c63a2100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.761406] >fff00000c63a2180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.761693] ^ [ 19.761869] fff00000c63a2200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.761953] fff00000c63a2280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.762220] ==================================================================
[ 12.843538] ================================================================== [ 12.844329] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.844705] Read of size 64 at addr ffff888102aaa404 by task kunit_try_catch/199 [ 12.845031] [ 12.845137] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.845183] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.845195] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.845216] Call Trace: [ 12.845230] <TASK> [ 12.845251] dump_stack_lvl+0x73/0xb0 [ 12.845284] print_report+0xd1/0x650 [ 12.845307] ? __virt_addr_valid+0x1db/0x2d0 [ 12.845331] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.845355] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.845378] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.845402] kasan_report+0x141/0x180 [ 12.845424] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.845453] kasan_check_range+0x10c/0x1c0 [ 12.845475] __asan_memmove+0x27/0x70 [ 12.845494] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.845519] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.845545] ? __schedule+0x10cc/0x2b60 [ 12.845567] ? __pfx_read_tsc+0x10/0x10 [ 12.845588] ? ktime_get_ts64+0x86/0x230 [ 12.845614] kunit_try_run_case+0x1a5/0x480 [ 12.845640] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.845662] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.845686] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.845709] ? __kthread_parkme+0x82/0x180 [ 12.845730] ? preempt_count_sub+0x50/0x80 [ 12.845755] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.845779] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.845803] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.845827] kthread+0x337/0x6f0 [ 12.845845] ? trace_preempt_on+0x20/0xc0 [ 12.845869] ? __pfx_kthread+0x10/0x10 [ 12.845889] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.845909] ? calculate_sigpending+0x7b/0xa0 [ 12.845973] ? __pfx_kthread+0x10/0x10 [ 12.845994] ret_from_fork+0x116/0x1d0 [ 12.846013] ? __pfx_kthread+0x10/0x10 [ 12.846045] ret_from_fork_asm+0x1a/0x30 [ 12.846077] </TASK> [ 12.846087] [ 12.857518] Allocated by task 199: [ 12.857693] kasan_save_stack+0x45/0x70 [ 12.857894] kasan_save_track+0x18/0x40 [ 12.858760] kasan_save_alloc_info+0x3b/0x50 [ 12.859118] __kasan_kmalloc+0xb7/0xc0 [ 12.859499] __kmalloc_cache_noprof+0x189/0x420 [ 12.859715] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.860194] kunit_try_run_case+0x1a5/0x480 [ 12.860501] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.860906] kthread+0x337/0x6f0 [ 12.861255] ret_from_fork+0x116/0x1d0 [ 12.861609] ret_from_fork_asm+0x1a/0x30 [ 12.861922] [ 12.862374] The buggy address belongs to the object at ffff888102aaa400 [ 12.862374] which belongs to the cache kmalloc-64 of size 64 [ 12.863469] The buggy address is located 4 bytes inside of [ 12.863469] allocated 64-byte region [ffff888102aaa400, ffff888102aaa440) [ 12.863970] [ 12.864376] The buggy address belongs to the physical page: [ 12.864803] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102aaa [ 12.865302] flags: 0x200000000000000(node=0|zone=2) [ 12.865531] page_type: f5(slab) [ 12.865681] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.865911] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.866148] page dumped because: kasan: bad access detected [ 12.866902] [ 12.867132] Memory state around the buggy address: [ 12.867679] ffff888102aaa300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.868239] ffff888102aaa380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.868723] >ffff888102aaa400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.869287] ^ [ 12.869531] ffff888102aaa480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.869831] ffff888102aaa500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.870521] ==================================================================