Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.234872] ================================================================== [ 18.234932] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.234986] Read of size 64 at addr fff00000c707ad84 by task kunit_try_catch/182 [ 18.235037] [ 18.235070] CPU: 0 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.235152] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.235180] Hardware name: linux,dummy-virt (DT) [ 18.235397] Call trace: [ 18.235434] show_stack+0x20/0x38 (C) [ 18.235486] dump_stack_lvl+0x8c/0xd0 [ 18.235536] print_report+0x118/0x608 [ 18.235593] kasan_report+0xdc/0x128 [ 18.236450] kasan_check_range+0x100/0x1a8 [ 18.236662] __asan_memmove+0x3c/0x98 [ 18.236740] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.236802] kunit_try_run_case+0x170/0x3f0 [ 18.236849] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.236902] kthread+0x328/0x630 [ 18.236945] ret_from_fork+0x10/0x20 [ 18.237388] [ 18.237476] Allocated by task 182: [ 18.237699] kasan_save_stack+0x3c/0x68 [ 18.237844] kasan_save_track+0x20/0x40 [ 18.238060] kasan_save_alloc_info+0x40/0x58 [ 18.238372] __kasan_kmalloc+0xd4/0xd8 [ 18.238601] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.238792] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 18.238920] kunit_try_run_case+0x170/0x3f0 [ 18.239161] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.239308] kthread+0x328/0x630 [ 18.239540] ret_from_fork+0x10/0x20 [ 18.239657] [ 18.239753] The buggy address belongs to the object at fff00000c707ad80 [ 18.239753] which belongs to the cache kmalloc-64 of size 64 [ 18.240016] The buggy address is located 4 bytes inside of [ 18.240016] allocated 64-byte region [fff00000c707ad80, fff00000c707adc0) [ 18.240228] [ 18.240387] The buggy address belongs to the physical page: [ 18.240487] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10707a [ 18.240873] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.240934] page_type: f5(slab) [ 18.241135] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.241218] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.241446] page dumped because: kasan: bad access detected [ 18.241595] [ 18.241634] Memory state around the buggy address: [ 18.241669] fff00000c707ac80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.241726] fff00000c707ad00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.242148] >fff00000c707ad80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.242316] ^ [ 18.242431] fff00000c707ae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.242628] fff00000c707ae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.242690] ==================================================================
[ 11.601814] ================================================================== [ 11.602961] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.603224] Read of size 64 at addr ffff888103113604 by task kunit_try_catch/201 [ 11.603720] [ 11.603962] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.604011] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.604024] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.604044] Call Trace: [ 11.604056] <TASK> [ 11.604074] dump_stack_lvl+0x73/0xb0 [ 11.604104] print_report+0xd1/0x650 [ 11.604127] ? __virt_addr_valid+0x1db/0x2d0 [ 11.604149] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.604174] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.604194] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.604217] kasan_report+0x141/0x180 [ 11.604238] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.604266] kasan_check_range+0x10c/0x1c0 [ 11.604288] __asan_memmove+0x27/0x70 [ 11.604307] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.604330] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.604353] ? __schedule+0x10cc/0x2b60 [ 11.604391] ? __pfx_read_tsc+0x10/0x10 [ 11.604412] ? ktime_get_ts64+0x86/0x230 [ 11.604436] kunit_try_run_case+0x1a5/0x480 [ 11.604459] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.604480] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.604503] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.604524] ? __kthread_parkme+0x82/0x180 [ 11.604543] ? preempt_count_sub+0x50/0x80 [ 11.604573] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.604595] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.604616] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.604637] kthread+0x337/0x6f0 [ 11.604656] ? trace_preempt_on+0x20/0xc0 [ 11.604679] ? __pfx_kthread+0x10/0x10 [ 11.604699] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.604718] ? calculate_sigpending+0x7b/0xa0 [ 11.604741] ? __pfx_kthread+0x10/0x10 [ 11.604761] ret_from_fork+0x116/0x1d0 [ 11.604778] ? __pfx_kthread+0x10/0x10 [ 11.604797] ret_from_fork_asm+0x1a/0x30 [ 11.604827] </TASK> [ 11.604838] [ 11.617336] Allocated by task 201: [ 11.617498] kasan_save_stack+0x45/0x70 [ 11.617792] kasan_save_track+0x18/0x40 [ 11.617971] kasan_save_alloc_info+0x3b/0x50 [ 11.618207] __kasan_kmalloc+0xb7/0xc0 [ 11.618359] __kmalloc_cache_noprof+0x189/0x420 [ 11.618653] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.618846] kunit_try_run_case+0x1a5/0x480 [ 11.619052] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.619437] kthread+0x337/0x6f0 [ 11.619560] ret_from_fork+0x116/0x1d0 [ 11.619775] ret_from_fork_asm+0x1a/0x30 [ 11.619966] [ 11.620057] The buggy address belongs to the object at ffff888103113600 [ 11.620057] which belongs to the cache kmalloc-64 of size 64 [ 11.620549] The buggy address is located 4 bytes inside of [ 11.620549] allocated 64-byte region [ffff888103113600, ffff888103113640) [ 11.621751] [ 11.621887] The buggy address belongs to the physical page: [ 11.622062] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103113 [ 11.623136] flags: 0x200000000000000(node=0|zone=2) [ 11.623458] page_type: f5(slab) [ 11.623740] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.624066] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.624385] page dumped because: kasan: bad access detected [ 11.624556] [ 11.624626] Memory state around the buggy address: [ 11.624845] ffff888103113500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.625159] ffff888103113580: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.625617] >ffff888103113600: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.626154] ^ [ 11.626355] ffff888103113680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.626820] ffff888103113700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.627114] ==================================================================