Date
July 3, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.808951] ================================================================== [ 19.809650] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.809823] Read of size 64 at addr fff00000c77ced84 by task kunit_try_catch/182 [ 19.809965] [ 19.810067] CPU: 0 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.810256] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.810314] Hardware name: linux,dummy-virt (DT) [ 19.810377] Call trace: [ 19.810430] show_stack+0x20/0x38 (C) [ 19.810541] dump_stack_lvl+0x8c/0xd0 [ 19.810647] print_report+0x118/0x608 [ 19.810748] kasan_report+0xdc/0x128 [ 19.810843] kasan_check_range+0x100/0x1a8 [ 19.810942] __asan_memmove+0x3c/0x98 [ 19.811119] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.811284] kunit_try_run_case+0x170/0x3f0 [ 19.811398] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.811518] kthread+0x328/0x630 [ 19.811611] ret_from_fork+0x10/0x20 [ 19.811737] [ 19.811799] Allocated by task 182: [ 19.811885] kasan_save_stack+0x3c/0x68 [ 19.811978] kasan_save_track+0x20/0x40 [ 19.812074] kasan_save_alloc_info+0x40/0x58 [ 19.812170] __kasan_kmalloc+0xd4/0xd8 [ 19.812252] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.812346] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.812482] kunit_try_run_case+0x170/0x3f0 [ 19.812597] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.812737] kthread+0x328/0x630 [ 19.812845] ret_from_fork+0x10/0x20 [ 19.812958] [ 19.813035] The buggy address belongs to the object at fff00000c77ced80 [ 19.813035] which belongs to the cache kmalloc-64 of size 64 [ 19.813158] The buggy address is located 4 bytes inside of [ 19.813158] allocated 64-byte region [fff00000c77ced80, fff00000c77cedc0) [ 19.813292] [ 19.813337] The buggy address belongs to the physical page: [ 19.813403] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077ce [ 19.813514] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.813684] page_type: f5(slab) [ 19.813782] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.813886] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.813985] page dumped because: kasan: bad access detected [ 19.814074] [ 19.814117] Memory state around the buggy address: [ 19.814193] fff00000c77cec80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.814297] fff00000c77ced00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.814399] >fff00000c77ced80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.814486] ^ [ 19.814590] fff00000c77cee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.814684] fff00000c77cee80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.814774] ==================================================================
[ 11.749247] ================================================================== [ 11.749841] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.750093] Read of size 64 at addr ffff888103184404 by task kunit_try_catch/199 [ 11.750868] [ 11.750996] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.751039] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.751050] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.751068] Call Trace: [ 11.751080] <TASK> [ 11.751094] dump_stack_lvl+0x73/0xb0 [ 11.751133] print_report+0xd1/0x650 [ 11.751156] ? __virt_addr_valid+0x1db/0x2d0 [ 11.751178] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.751200] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.751220] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.751243] kasan_report+0x141/0x180 [ 11.751263] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.751290] kasan_check_range+0x10c/0x1c0 [ 11.751322] __asan_memmove+0x27/0x70 [ 11.751341] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.751363] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.751387] ? __schedule+0x10cc/0x2b60 [ 11.751407] ? __pfx_read_tsc+0x10/0x10 [ 11.751427] ? ktime_get_ts64+0x86/0x230 [ 11.751451] kunit_try_run_case+0x1a5/0x480 [ 11.751474] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.751495] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.751517] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.751538] ? __kthread_parkme+0x82/0x180 [ 11.751557] ? preempt_count_sub+0x50/0x80 [ 11.751579] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.751601] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.751622] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.751643] kthread+0x337/0x6f0 [ 11.751662] ? trace_preempt_on+0x20/0xc0 [ 11.751684] ? __pfx_kthread+0x10/0x10 [ 11.751703] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.751722] ? calculate_sigpending+0x7b/0xa0 [ 11.751744] ? __pfx_kthread+0x10/0x10 [ 11.751764] ret_from_fork+0x116/0x1d0 [ 11.751782] ? __pfx_kthread+0x10/0x10 [ 11.751801] ret_from_fork_asm+0x1a/0x30 [ 11.751830] </TASK> [ 11.751840] [ 11.766021] Allocated by task 199: [ 11.766270] kasan_save_stack+0x45/0x70 [ 11.766674] kasan_save_track+0x18/0x40 [ 11.767049] kasan_save_alloc_info+0x3b/0x50 [ 11.767522] __kasan_kmalloc+0xb7/0xc0 [ 11.767882] __kmalloc_cache_noprof+0x189/0x420 [ 11.768371] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.768918] kunit_try_run_case+0x1a5/0x480 [ 11.769403] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.769760] kthread+0x337/0x6f0 [ 11.770086] ret_from_fork+0x116/0x1d0 [ 11.770481] ret_from_fork_asm+0x1a/0x30 [ 11.770894] [ 11.771078] The buggy address belongs to the object at ffff888103184400 [ 11.771078] which belongs to the cache kmalloc-64 of size 64 [ 11.772960] The buggy address is located 4 bytes inside of [ 11.772960] allocated 64-byte region [ffff888103184400, ffff888103184440) [ 11.773971] [ 11.774061] The buggy address belongs to the physical page: [ 11.774294] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103184 [ 11.774615] flags: 0x200000000000000(node=0|zone=2) [ 11.774825] page_type: f5(slab) [ 11.774978] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.775283] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.775567] page dumped because: kasan: bad access detected [ 11.775794] [ 11.775879] Memory state around the buggy address: [ 11.776074] ffff888103184300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 11.776722] ffff888103184380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.777390] >ffff888103184400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.778195] ^ [ 11.778704] ffff888103184480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.779432] ffff888103184500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.780106] ==================================================================