Date
July 6, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.157376] ================================================================== [ 18.157611] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.157827] Read of size 64 at addr fff00000c641eb84 by task kunit_try_catch/182 [ 18.158030] [ 18.158175] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.158415] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.158596] Hardware name: linux,dummy-virt (DT) [ 18.158807] Call trace: [ 18.158974] show_stack+0x20/0x38 (C) [ 18.159067] dump_stack_lvl+0x8c/0xd0 [ 18.159244] print_report+0x118/0x608 [ 18.159481] kasan_report+0xdc/0x128 [ 18.159635] kasan_check_range+0x100/0x1a8 [ 18.159686] __asan_memmove+0x3c/0x98 [ 18.159788] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.160173] kunit_try_run_case+0x170/0x3f0 [ 18.160418] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.160637] kthread+0x328/0x630 [ 18.160708] ret_from_fork+0x10/0x20 [ 18.161066] [ 18.161118] Allocated by task 182: [ 18.161272] kasan_save_stack+0x3c/0x68 [ 18.161457] kasan_save_track+0x20/0x40 [ 18.161718] kasan_save_alloc_info+0x40/0x58 [ 18.161760] __kasan_kmalloc+0xd4/0xd8 [ 18.161814] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.161864] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 18.161903] kunit_try_run_case+0x170/0x3f0 [ 18.162254] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.162410] kthread+0x328/0x630 [ 18.162561] ret_from_fork+0x10/0x20 [ 18.162730] [ 18.162851] The buggy address belongs to the object at fff00000c641eb80 [ 18.162851] which belongs to the cache kmalloc-64 of size 64 [ 18.163109] The buggy address is located 4 bytes inside of [ 18.163109] allocated 64-byte region [fff00000c641eb80, fff00000c641ebc0) [ 18.163372] [ 18.163442] The buggy address belongs to the physical page: [ 18.163522] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10641e [ 18.163667] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.163836] page_type: f5(slab) [ 18.163877] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.163981] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.164386] page dumped because: kasan: bad access detected [ 18.164583] [ 18.164607] Memory state around the buggy address: [ 18.164837] fff00000c641ea80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.165208] fff00000c641eb00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.165312] >fff00000c641eb80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.165454] ^ [ 18.165743] fff00000c641ec00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.165980] fff00000c641ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.166140] ==================================================================
[ 11.807274] ================================================================== [ 11.807832] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.808177] Read of size 64 at addr ffff888102b17f84 by task kunit_try_catch/199 [ 11.808485] [ 11.808598] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.808640] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.808652] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.808715] Call Trace: [ 11.808728] <TASK> [ 11.808744] dump_stack_lvl+0x73/0xb0 [ 11.808772] print_report+0xd1/0x650 [ 11.808794] ? __virt_addr_valid+0x1db/0x2d0 [ 11.808816] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.808841] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.808863] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.808887] kasan_report+0x141/0x180 [ 11.808908] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.808950] kasan_check_range+0x10c/0x1c0 [ 11.808973] __asan_memmove+0x27/0x70 [ 11.808992] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.809016] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.809040] ? __schedule+0x10cc/0x2b60 [ 11.809062] ? __pfx_read_tsc+0x10/0x10 [ 11.809082] ? ktime_get_ts64+0x86/0x230 [ 11.809105] kunit_try_run_case+0x1a5/0x480 [ 11.809128] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.809150] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.809172] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.809194] ? __kthread_parkme+0x82/0x180 [ 11.809213] ? preempt_count_sub+0x50/0x80 [ 11.809236] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.809259] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.809281] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.809303] kthread+0x337/0x6f0 [ 11.809322] ? trace_preempt_on+0x20/0xc0 [ 11.809344] ? __pfx_kthread+0x10/0x10 [ 11.809364] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.809384] ? calculate_sigpending+0x7b/0xa0 [ 11.809407] ? __pfx_kthread+0x10/0x10 [ 11.809427] ret_from_fork+0x116/0x1d0 [ 11.809445] ? __pfx_kthread+0x10/0x10 [ 11.809465] ret_from_fork_asm+0x1a/0x30 [ 11.809495] </TASK> [ 11.809506] [ 11.817255] Allocated by task 199: [ 11.817669] kasan_save_stack+0x45/0x70 [ 11.817859] kasan_save_track+0x18/0x40 [ 11.818042] kasan_save_alloc_info+0x3b/0x50 [ 11.818236] __kasan_kmalloc+0xb7/0xc0 [ 11.818369] __kmalloc_cache_noprof+0x189/0x420 [ 11.818562] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.819003] kunit_try_run_case+0x1a5/0x480 [ 11.819236] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.819467] kthread+0x337/0x6f0 [ 11.819614] ret_from_fork+0x116/0x1d0 [ 11.819746] ret_from_fork_asm+0x1a/0x30 [ 11.819901] [ 11.820009] The buggy address belongs to the object at ffff888102b17f80 [ 11.820009] which belongs to the cache kmalloc-64 of size 64 [ 11.820804] The buggy address is located 4 bytes inside of [ 11.820804] allocated 64-byte region [ffff888102b17f80, ffff888102b17fc0) [ 11.821164] [ 11.821237] The buggy address belongs to the physical page: [ 11.821491] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b17 [ 11.822090] flags: 0x200000000000000(node=0|zone=2) [ 11.822322] page_type: f5(slab) [ 11.822502] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.822730] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.823006] page dumped because: kasan: bad access detected [ 11.823471] [ 11.823674] Memory state around the buggy address: [ 11.823906] ffff888102b17e80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.824208] ffff888102b17f00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.824541] >ffff888102b17f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.824827] ^ [ 11.825022] ffff888102b18000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.825451] ffff888102b18080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.825757] ==================================================================