Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.481307] ================================================================== [ 32.481370] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 32.481426] Read of size 64 at addr fff00000c9b0bc04 by task kunit_try_catch/214 [ 32.481509] [ 32.481554] CPU: 1 UID: 0 PID: 214 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 32.481652] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.482709] Hardware name: linux,dummy-virt (DT) [ 32.482760] Call trace: [ 32.482909] show_stack+0x20/0x38 (C) [ 32.482965] dump_stack_lvl+0x8c/0xd0 [ 32.483272] print_report+0x118/0x5e8 [ 32.483328] kasan_report+0xdc/0x128 [ 32.483632] kasan_check_range+0x100/0x1a8 [ 32.483852] __asan_memmove+0x3c/0x98 [ 32.484208] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 32.484309] kunit_try_run_case+0x170/0x3f0 [ 32.484461] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.484519] kthread+0x328/0x630 [ 32.484740] ret_from_fork+0x10/0x20 [ 32.485011] [ 32.485056] Allocated by task 214: [ 32.485109] kasan_save_stack+0x3c/0x68 [ 32.485212] kasan_save_track+0x20/0x40 [ 32.485431] kasan_save_alloc_info+0x40/0x58 [ 32.485936] __kasan_kmalloc+0xd4/0xd8 [ 32.486037] __kmalloc_cache_noprof+0x16c/0x3c0 [ 32.486390] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 32.486727] kunit_try_run_case+0x170/0x3f0 [ 32.486792] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.487219] kthread+0x328/0x630 [ 32.487317] ret_from_fork+0x10/0x20 [ 32.487367] [ 32.487520] The buggy address belongs to the object at fff00000c9b0bc00 [ 32.487520] which belongs to the cache kmalloc-64 of size 64 [ 32.487752] The buggy address is located 4 bytes inside of [ 32.487752] allocated 64-byte region [fff00000c9b0bc00, fff00000c9b0bc40) [ 32.487927] [ 32.487952] The buggy address belongs to the physical page: [ 32.488191] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b0b [ 32.488774] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.488892] page_type: f5(slab) [ 32.489042] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 32.489303] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 32.489504] page dumped because: kasan: bad access detected [ 32.489550] [ 32.489569] Memory state around the buggy address: [ 32.489830] fff00000c9b0bb00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 32.490071] fff00000c9b0bb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 32.490167] >fff00000c9b0bc00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 32.490242] ^ [ 32.490449] fff00000c9b0bc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.490714] fff00000c9b0bd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.490961] ==================================================================
[ 25.981102] ================================================================== [ 25.981600] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.982444] Read of size 64 at addr ffff888106254004 by task kunit_try_catch/231 [ 25.982975] [ 25.983080] CPU: 1 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 25.983232] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.983251] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.983273] Call Trace: [ 25.983286] <TASK> [ 25.983361] dump_stack_lvl+0x73/0xb0 [ 25.983395] print_report+0xd1/0x640 [ 25.983418] ? __virt_addr_valid+0x1db/0x2d0 [ 25.983443] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.983467] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.983493] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.983518] kasan_report+0x141/0x180 [ 25.983540] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.983569] kasan_check_range+0x10c/0x1c0 [ 25.983593] __asan_memmove+0x27/0x70 [ 25.983617] kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.983642] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 25.983668] ? __schedule+0x10da/0x2b60 [ 25.983690] ? __pfx_read_tsc+0x10/0x10 [ 25.983712] ? ktime_get_ts64+0x86/0x230 [ 25.983737] kunit_try_run_case+0x1a5/0x480 [ 25.983761] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.983796] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.983819] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.983845] ? __kthread_parkme+0x82/0x180 [ 25.983865] ? preempt_count_sub+0x50/0x80 [ 25.983889] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.983913] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.983937] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.983972] kthread+0x337/0x6f0 [ 25.983992] ? trace_preempt_on+0x20/0xc0 [ 25.984015] ? __pfx_kthread+0x10/0x10 [ 25.984036] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.984115] ? calculate_sigpending+0x7b/0xa0 [ 25.984141] ? __pfx_kthread+0x10/0x10 [ 25.984163] ret_from_fork+0x116/0x1d0 [ 25.984182] ? __pfx_kthread+0x10/0x10 [ 25.984203] ret_from_fork_asm+0x1a/0x30 [ 25.984234] </TASK> [ 25.984245] [ 25.994969] Allocated by task 231: [ 25.995421] kasan_save_stack+0x45/0x70 [ 25.995716] kasan_save_track+0x18/0x40 [ 25.996094] kasan_save_alloc_info+0x3b/0x50 [ 25.996388] __kasan_kmalloc+0xb7/0xc0 [ 25.996568] __kmalloc_cache_noprof+0x189/0x420 [ 25.996769] kmalloc_memmove_invalid_size+0xac/0x330 [ 25.997015] kunit_try_run_case+0x1a5/0x480 [ 25.997536] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.997750] kthread+0x337/0x6f0 [ 25.998236] ret_from_fork+0x116/0x1d0 [ 25.998509] ret_from_fork_asm+0x1a/0x30 [ 25.998704] [ 25.998987] The buggy address belongs to the object at ffff888106254000 [ 25.998987] which belongs to the cache kmalloc-64 of size 64 [ 25.999667] The buggy address is located 4 bytes inside of [ 25.999667] allocated 64-byte region [ffff888106254000, ffff888106254040) [ 26.000497] [ 26.000723] The buggy address belongs to the physical page: [ 26.001033] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106254 [ 26.001629] flags: 0x200000000000000(node=0|zone=2) [ 26.001861] page_type: f5(slab) [ 26.002347] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 26.002746] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 26.003290] page dumped because: kasan: bad access detected [ 26.003497] [ 26.003587] Memory state around the buggy address: [ 26.003808] ffff888106253f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.004096] ffff888106253f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.004782] >ffff888106254000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 26.005314] ^ [ 26.005626] ffff888106254080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.005958] ffff888106254100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.006737] ==================================================================