Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.395580] ================================================================== [ 19.395683] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 19.396040] Read of size 18446744073709551614 at addr fff00000c7785a04 by task kunit_try_catch/180 [ 19.396265] [ 19.396429] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 19.397182] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.397246] Hardware name: linux,dummy-virt (DT) [ 19.397315] Call trace: [ 19.397345] show_stack+0x20/0x38 (C) [ 19.397548] dump_stack_lvl+0x8c/0xd0 [ 19.397672] print_report+0x118/0x608 [ 19.397782] kasan_report+0xdc/0x128 [ 19.397926] kasan_check_range+0x100/0x1a8 [ 19.398044] __asan_memmove+0x3c/0x98 [ 19.398111] kmalloc_memmove_negative_size+0x154/0x2e0 [ 19.398221] kunit_try_run_case+0x170/0x3f0 [ 19.398321] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.398408] kthread+0x328/0x630 [ 19.398526] ret_from_fork+0x10/0x20 [ 19.398591] [ 19.398614] Allocated by task 180: [ 19.398652] kasan_save_stack+0x3c/0x68 [ 19.398726] kasan_save_track+0x20/0x40 [ 19.398789] kasan_save_alloc_info+0x40/0x58 [ 19.398870] __kasan_kmalloc+0xd4/0xd8 [ 19.398917] __kmalloc_cache_noprof+0x15c/0x3c0 [ 19.399094] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 19.399158] kunit_try_run_case+0x170/0x3f0 [ 19.399203] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.399271] kthread+0x328/0x630 [ 19.399312] ret_from_fork+0x10/0x20 [ 19.399356] [ 19.399382] The buggy address belongs to the object at fff00000c7785a00 [ 19.399382] which belongs to the cache kmalloc-64 of size 64 [ 19.399649] The buggy address is located 4 bytes inside of [ 19.399649] 64-byte region [fff00000c7785a00, fff00000c7785a40) [ 19.399772] [ 19.399815] The buggy address belongs to the physical page: [ 19.400012] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107785 [ 19.400270] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.400560] page_type: f5(slab) [ 19.400665] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.400729] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.400775] page dumped because: kasan: bad access detected [ 19.401053] [ 19.401097] Memory state around the buggy address: [ 19.401142] fff00000c7785900: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 19.401418] fff00000c7785980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.401610] >fff00000c7785a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.401656] ^ [ 19.401690] fff00000c7785a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.402170] fff00000c7785b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.402225] ==================================================================
[ 11.288803] ================================================================== [ 11.289364] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x171/0x330 [ 11.289748] Read of size 18446744073709551614 at addr ffff8881029cfc04 by task kunit_try_catch/197 [ 11.290261] [ 11.290424] CPU: 0 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.290487] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.290499] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.290520] Call Trace: [ 11.290541] <TASK> [ 11.290557] dump_stack_lvl+0x73/0xb0 [ 11.290587] print_report+0xd1/0x650 [ 11.290609] ? __virt_addr_valid+0x1db/0x2d0 [ 11.290653] ? kmalloc_memmove_negative_size+0x171/0x330 [ 11.290677] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.290721] ? kmalloc_memmove_negative_size+0x171/0x330 [ 11.290764] kasan_report+0x141/0x180 [ 11.290787] ? kmalloc_memmove_negative_size+0x171/0x330 [ 11.290817] kasan_check_range+0x10c/0x1c0 [ 11.290842] __asan_memmove+0x27/0x70 [ 11.290862] kmalloc_memmove_negative_size+0x171/0x330 [ 11.290906] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 11.290940] kunit_try_run_case+0x1a5/0x480 [ 11.290964] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.290985] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.291009] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.291031] ? __kthread_parkme+0x82/0x180 [ 11.291052] ? preempt_count_sub+0x50/0x80 [ 11.291076] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.291100] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.291122] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.291145] kthread+0x337/0x6f0 [ 11.291166] ? trace_preempt_on+0x20/0xc0 [ 11.291198] ? __pfx_kthread+0x10/0x10 [ 11.291219] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.291239] ? calculate_sigpending+0x7b/0xa0 [ 11.291263] ? __pfx_kthread+0x10/0x10 [ 11.291285] ret_from_fork+0x116/0x1d0 [ 11.291303] ? __pfx_kthread+0x10/0x10 [ 11.291339] ret_from_fork_asm+0x1a/0x30 [ 11.291372] </TASK> [ 11.291383] [ 11.302142] Allocated by task 197: [ 11.302341] kasan_save_stack+0x45/0x70 [ 11.302744] kasan_save_track+0x18/0x40 [ 11.302957] kasan_save_alloc_info+0x3b/0x50 [ 11.303286] __kasan_kmalloc+0xb7/0xc0 [ 11.303472] __kmalloc_cache_noprof+0x189/0x420 [ 11.303855] kmalloc_memmove_negative_size+0xac/0x330 [ 11.304087] kunit_try_run_case+0x1a5/0x480 [ 11.304441] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.304913] kthread+0x337/0x6f0 [ 11.305197] ret_from_fork+0x116/0x1d0 [ 11.305514] ret_from_fork_asm+0x1a/0x30 [ 11.305696] [ 11.305790] The buggy address belongs to the object at ffff8881029cfc00 [ 11.305790] which belongs to the cache kmalloc-64 of size 64 [ 11.306682] The buggy address is located 4 bytes inside of [ 11.306682] 64-byte region [ffff8881029cfc00, ffff8881029cfc40) [ 11.307459] [ 11.307572] The buggy address belongs to the physical page: [ 11.307954] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029cf [ 11.308584] flags: 0x200000000000000(node=0|zone=2) [ 11.308888] page_type: f5(slab) [ 11.309295] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.309805] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.310117] page dumped because: kasan: bad access detected [ 11.310843] [ 11.310967] Memory state around the buggy address: [ 11.311177] ffff8881029cfb00: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 11.311459] ffff8881029cfb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.312125] >ffff8881029cfc00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.312812] ^ [ 11.313046] ffff8881029cfc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.313355] ffff8881029cfd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.313929] ==================================================================