Date
Nov. 27, 2024, 3:37 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.138541] ================================================================== [ 48.139763] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e8 [ 48.140490] Read of size 64 at addr fff00000c60d3484 by task kunit_try_catch/171 [ 48.141476] [ 48.141835] CPU: 1 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 48.143008] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.143698] Hardware name: linux,dummy-virt (DT) [ 48.144266] Call trace: [ 48.145793] show_stack+0x20/0x38 (C) [ 48.146473] dump_stack_lvl+0x8c/0xd0 [ 48.146972] print_report+0x118/0x5e0 [ 48.147549] kasan_report+0xc8/0x118 [ 48.148153] kasan_check_range+0x100/0x1a8 [ 48.148776] __asan_memmove+0x3c/0x98 [ 48.149357] kmalloc_memmove_invalid_size+0x154/0x2e8 [ 48.150372] kunit_try_run_case+0x14c/0x3d0 [ 48.151600] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.152481] kthread+0x24c/0x2d0 [ 48.152906] ret_from_fork+0x10/0x20 [ 48.153528] [ 48.153808] Allocated by task 171: [ 48.154398] kasan_save_stack+0x3c/0x68 [ 48.154925] kasan_save_track+0x20/0x40 [ 48.155591] kasan_save_alloc_info+0x40/0x58 [ 48.156665] __kasan_kmalloc+0xd4/0xd8 [ 48.157172] __kmalloc_cache_noprof+0x15c/0x3c0 [ 48.157819] kmalloc_memmove_invalid_size+0xb0/0x2e8 [ 48.158367] kunit_try_run_case+0x14c/0x3d0 [ 48.159098] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.160004] kthread+0x24c/0x2d0 [ 48.160603] ret_from_fork+0x10/0x20 [ 48.162062] [ 48.162469] The buggy address belongs to the object at fff00000c60d3480 [ 48.162469] which belongs to the cache kmalloc-64 of size 64 [ 48.164021] The buggy address is located 4 bytes inside of [ 48.164021] allocated 64-byte region [fff00000c60d3480, fff00000c60d34c0) [ 48.165866] [ 48.166151] The buggy address belongs to the physical page: [ 48.166924] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060d3 [ 48.167909] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 48.168833] page_type: f5(slab) [ 48.169277] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 48.170620] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 48.171492] page dumped because: kasan: bad access detected [ 48.172136] [ 48.172452] Memory state around the buggy address: [ 48.173051] fff00000c60d3380: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 48.174352] fff00000c60d3400: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 48.175194] >fff00000c60d3480: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 48.176166] ^ [ 48.176763] fff00000c60d3500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.177921] fff00000c60d3580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.179039] ==================================================================
[ 25.373563] ================================================================== [ 25.375091] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x170/0x330 [ 25.376433] Read of size 64 at addr ffff888102a49284 by task kunit_try_catch/190 [ 25.377490] [ 25.377669] CPU: 0 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 25.379032] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.379738] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.380761] Call Trace: [ 25.381069] <TASK> [ 25.381295] dump_stack_lvl+0x73/0xb0 [ 25.381683] print_report+0xd1/0x640 [ 25.382041] ? __virt_addr_valid+0x1db/0x2d0 [ 25.382447] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.383265] kasan_report+0x102/0x140 [ 25.383568] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 25.384162] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 25.384774] kasan_check_range+0x10c/0x1c0 [ 25.385337] __asan_memmove+0x27/0x70 [ 25.385846] kmalloc_memmove_invalid_size+0x170/0x330 [ 25.386376] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 25.386977] ? __schedule+0xc3e/0x2790 [ 25.387513] ? __pfx_read_tsc+0x10/0x10 [ 25.387846] ? ktime_get_ts64+0x84/0x230 [ 25.388450] kunit_try_run_case+0x1b3/0x490 [ 25.388915] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.389421] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 25.390097] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.390551] ? __kthread_parkme+0x82/0x160 [ 25.390850] ? preempt_count_sub+0x50/0x80 [ 25.391446] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.392221] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.392835] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.393447] kthread+0x257/0x310 [ 25.393708] ? __pfx_kthread+0x10/0x10 [ 25.394218] ret_from_fork+0x41/0x80 [ 25.394709] ? __pfx_kthread+0x10/0x10 [ 25.395186] ret_from_fork_asm+0x1a/0x30 [ 25.395519] </TASK> [ 25.395710] [ 25.396033] Allocated by task 190: [ 25.396687] kasan_save_stack+0x3d/0x60 [ 25.397248] kasan_save_track+0x18/0x40 [ 25.397552] kasan_save_alloc_info+0x3b/0x50 [ 25.397850] __kasan_kmalloc+0xb7/0xc0 [ 25.398380] __kmalloc_cache_noprof+0x184/0x410 [ 25.399126] kmalloc_memmove_invalid_size+0xad/0x330 [ 25.399452] kunit_try_run_case+0x1b3/0x490 [ 25.400108] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.400670] kthread+0x257/0x310 [ 25.400918] ret_from_fork+0x41/0x80 [ 25.401215] ret_from_fork_asm+0x1a/0x30 [ 25.401790] [ 25.402137] The buggy address belongs to the object at ffff888102a49280 [ 25.402137] which belongs to the cache kmalloc-64 of size 64 [ 25.403090] The buggy address is located 4 bytes inside of [ 25.403090] allocated 64-byte region [ffff888102a49280, ffff888102a492c0) [ 25.404364] [ 25.404561] The buggy address belongs to the physical page: [ 25.404885] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a49 [ 25.405855] flags: 0x200000000000000(node=0|zone=2) [ 25.406367] page_type: f5(slab) [ 25.406615] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 25.407759] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 25.408715] page dumped because: kasan: bad access detected [ 25.409650] [ 25.409930] Memory state around the buggy address: [ 25.410463] ffff888102a49180: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.412149] ffff888102a49200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.412715] >ffff888102a49280: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.413791] ^ [ 25.414384] ffff888102a49300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.415544] ffff888102a49380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.416455] ==================================================================