Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.645422] ================================================================== [ 29.645518] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 29.645572] Read of size 64 at addr fff00000c9b70784 by task kunit_try_catch/215 [ 29.645621] [ 29.645650] CPU: 0 UID: 0 PID: 215 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 29.645887] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.645970] Hardware name: linux,dummy-virt (DT) [ 29.646002] Call trace: [ 29.646026] show_stack+0x20/0x38 (C) [ 29.646207] dump_stack_lvl+0x8c/0xd0 [ 29.646258] print_report+0x118/0x608 [ 29.646303] kasan_report+0xdc/0x128 [ 29.646348] kasan_check_range+0x100/0x1a8 [ 29.646393] __asan_memmove+0x3c/0x98 [ 29.646436] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 29.646600] kunit_try_run_case+0x170/0x3f0 [ 29.646708] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.646812] kthread+0x328/0x630 [ 29.646895] ret_from_fork+0x10/0x20 [ 29.647047] [ 29.647166] Allocated by task 215: [ 29.647194] kasan_save_stack+0x3c/0x68 [ 29.647259] kasan_save_track+0x20/0x40 [ 29.647301] kasan_save_alloc_info+0x40/0x58 [ 29.647341] __kasan_kmalloc+0xd4/0xd8 [ 29.647584] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.647682] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 29.647771] kunit_try_run_case+0x170/0x3f0 [ 29.647862] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.648006] kthread+0x328/0x630 [ 29.648109] ret_from_fork+0x10/0x20 [ 29.648148] [ 29.648168] The buggy address belongs to the object at fff00000c9b70780 [ 29.648168] which belongs to the cache kmalloc-64 of size 64 [ 29.648226] The buggy address is located 4 bytes inside of [ 29.648226] allocated 64-byte region [fff00000c9b70780, fff00000c9b707c0) [ 29.648288] [ 29.648319] The buggy address belongs to the physical page: [ 29.648364] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b70 [ 29.648433] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.648481] page_type: f5(slab) [ 29.648520] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 29.648580] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 29.648622] page dumped because: kasan: bad access detected [ 29.648655] [ 29.648673] Memory state around the buggy address: [ 29.648720] fff00000c9b70680: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 29.648773] fff00000c9b70700: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 29.648820] >fff00000c9b70780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 29.648866] ^ [ 29.648912] fff00000c9b70800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.648953] fff00000c9b70880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.648991] ==================================================================
[ 25.139513] ================================================================== [ 25.140717] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.141347] Read of size 64 at addr ffff888104512104 by task kunit_try_catch/231 [ 25.141665] [ 25.142109] CPU: 1 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 25.142168] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.142182] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.142208] Call Trace: [ 25.142234] <TASK> [ 25.142259] dump_stack_lvl+0x73/0xb0 [ 25.142300] print_report+0xd1/0x650 [ 25.142324] ? __virt_addr_valid+0x1db/0x2d0 [ 25.142351] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.142375] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.142413] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.142438] kasan_report+0x141/0x180 [ 25.142460] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.142489] kasan_check_range+0x10c/0x1c0 [ 25.142513] __asan_memmove+0x27/0x70 [ 25.142536] kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.142560] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 25.142584] ? __schedule+0x10cc/0x2b60 [ 25.142610] ? __pfx_read_tsc+0x10/0x10 [ 25.142632] ? ktime_get_ts64+0x86/0x230 [ 25.142660] kunit_try_run_case+0x1a5/0x480 [ 25.142688] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.142711] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.142736] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.142760] ? __kthread_parkme+0x82/0x180 [ 25.142782] ? preempt_count_sub+0x50/0x80 [ 25.142806] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.142831] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.142856] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.142881] kthread+0x337/0x6f0 [ 25.142901] ? trace_preempt_on+0x20/0xc0 [ 25.142927] ? __pfx_kthread+0x10/0x10 [ 25.142948] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.142971] ? calculate_sigpending+0x7b/0xa0 [ 25.142996] ? __pfx_kthread+0x10/0x10 [ 25.143018] ret_from_fork+0x116/0x1d0 [ 25.143037] ? __pfx_kthread+0x10/0x10 [ 25.143058] ret_from_fork_asm+0x1a/0x30 [ 25.143090] </TASK> [ 25.143104] [ 25.150888] Allocated by task 231: [ 25.151086] kasan_save_stack+0x45/0x70 [ 25.151284] kasan_save_track+0x18/0x40 [ 25.151676] kasan_save_alloc_info+0x3b/0x50 [ 25.151845] __kasan_kmalloc+0xb7/0xc0 [ 25.151978] __kmalloc_cache_noprof+0x189/0x420 [ 25.152252] kmalloc_memmove_invalid_size+0xac/0x330 [ 25.152535] kunit_try_run_case+0x1a5/0x480 [ 25.152774] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.153071] kthread+0x337/0x6f0 [ 25.153330] ret_from_fork+0x116/0x1d0 [ 25.153562] ret_from_fork_asm+0x1a/0x30 [ 25.153705] [ 25.153799] The buggy address belongs to the object at ffff888104512100 [ 25.153799] which belongs to the cache kmalloc-64 of size 64 [ 25.154430] The buggy address is located 4 bytes inside of [ 25.154430] allocated 64-byte region [ffff888104512100, ffff888104512140) [ 25.154983] [ 25.155078] The buggy address belongs to the physical page: [ 25.155282] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104512 [ 25.156185] flags: 0x200000000000000(node=0|zone=2) [ 25.156444] page_type: f5(slab) [ 25.156638] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 25.156976] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 25.157327] page dumped because: kasan: bad access detected [ 25.157624] [ 25.157697] Memory state around the buggy address: [ 25.157853] ffff888104512000: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 25.158071] ffff888104512080: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.158559] >ffff888104512100: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.158889] ^ [ 25.159132] ffff888104512180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.159468] ffff888104512200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.159728] ==================================================================