Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.437789] ================================================================== [ 19.438000] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.438382] Read of size 64 at addr fff00000c640bb04 by task kunit_try_catch/191 [ 19.438500] [ 19.438586] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 19.438818] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.438906] Hardware name: linux,dummy-virt (DT) [ 19.439139] Call trace: [ 19.439208] show_stack+0x20/0x38 (C) [ 19.439320] dump_stack_lvl+0x8c/0xd0 [ 19.439438] print_report+0x118/0x608 [ 19.439540] kasan_report+0xdc/0x128 [ 19.440019] kasan_check_range+0x100/0x1a8 [ 19.440334] __asan_memmove+0x3c/0x98 [ 19.440580] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.440794] kunit_try_run_case+0x170/0x3f0 [ 19.440961] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.441118] kthread+0x328/0x630 [ 19.441204] ret_from_fork+0x10/0x20 [ 19.441305] [ 19.441347] Allocated by task 191: [ 19.441415] kasan_save_stack+0x3c/0x68 [ 19.441526] kasan_save_track+0x20/0x40 [ 19.441607] kasan_save_alloc_info+0x40/0x58 [ 19.442014] __kasan_kmalloc+0xd4/0xd8 [ 19.442144] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.442243] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.442339] kunit_try_run_case+0x170/0x3f0 [ 19.442424] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.442524] kthread+0x328/0x630 [ 19.442597] ret_from_fork+0x10/0x20 [ 19.442675] [ 19.442723] The buggy address belongs to the object at fff00000c640bb00 [ 19.442723] which belongs to the cache kmalloc-64 of size 64 [ 19.442876] The buggy address is located 4 bytes inside of [ 19.442876] allocated 64-byte region [fff00000c640bb00, fff00000c640bb40) [ 19.443041] [ 19.443104] The buggy address belongs to the physical page: [ 19.443204] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10640b [ 19.443372] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.443527] page_type: f5(slab) [ 19.443636] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.443782] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.443899] page dumped because: kasan: bad access detected [ 19.443967] [ 19.444012] Memory state around the buggy address: [ 19.444092] fff00000c640ba00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.444548] fff00000c640ba80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.444669] >fff00000c640bb00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.444846] ^ [ 19.444935] fff00000c640bb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.444989] fff00000c640bc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.445032] ==================================================================
[ 11.667230] ================================================================== [ 11.668398] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.668669] Read of size 64 at addr ffff8881028c9404 by task kunit_try_catch/207 [ 11.668887] [ 11.668993] CPU: 1 UID: 0 PID: 207 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 11.669042] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.669054] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.669075] Call Trace: [ 11.669087] <TASK> [ 11.669107] dump_stack_lvl+0x73/0xb0 [ 11.669137] print_report+0xd1/0x650 [ 11.669159] ? __virt_addr_valid+0x1db/0x2d0 [ 11.669183] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.669206] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.669227] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.669250] kasan_report+0x141/0x180 [ 11.669271] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.669298] kasan_check_range+0x10c/0x1c0 [ 11.669320] __asan_memmove+0x27/0x70 [ 11.669339] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.669362] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.669385] ? __schedule+0x10cc/0x2b60 [ 11.669407] ? __pfx_read_tsc+0x10/0x10 [ 11.669428] ? ktime_get_ts64+0x86/0x230 [ 11.669453] kunit_try_run_case+0x1a5/0x480 [ 11.669477] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.669498] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.669519] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.669541] ? __kthread_parkme+0x82/0x180 [ 11.669632] ? preempt_count_sub+0x50/0x80 [ 11.669655] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.669678] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.669706] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.669728] kthread+0x337/0x6f0 [ 11.669746] ? trace_preempt_on+0x20/0xc0 [ 11.669771] ? __pfx_kthread+0x10/0x10 [ 11.669792] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.669812] ? calculate_sigpending+0x7b/0xa0 [ 11.669835] ? __pfx_kthread+0x10/0x10 [ 11.669856] ret_from_fork+0x116/0x1d0 [ 11.669873] ? __pfx_kthread+0x10/0x10 [ 11.669893] ret_from_fork_asm+0x1a/0x30 [ 11.669923] </TASK> [ 11.669948] [ 11.680059] Allocated by task 207: [ 11.680338] kasan_save_stack+0x45/0x70 [ 11.680619] kasan_save_track+0x18/0x40 [ 11.681073] kasan_save_alloc_info+0x3b/0x50 [ 11.681240] __kasan_kmalloc+0xb7/0xc0 [ 11.681628] __kmalloc_cache_noprof+0x189/0x420 [ 11.681908] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.682106] kunit_try_run_case+0x1a5/0x480 [ 11.682305] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.682803] kthread+0x337/0x6f0 [ 11.682954] ret_from_fork+0x116/0x1d0 [ 11.683264] ret_from_fork_asm+0x1a/0x30 [ 11.683576] [ 11.683681] The buggy address belongs to the object at ffff8881028c9400 [ 11.683681] which belongs to the cache kmalloc-64 of size 64 [ 11.684043] The buggy address is located 4 bytes inside of [ 11.684043] allocated 64-byte region [ffff8881028c9400, ffff8881028c9440) [ 11.684385] [ 11.684453] The buggy address belongs to the physical page: [ 11.684619] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028c9 [ 11.684851] flags: 0x200000000000000(node=0|zone=2) [ 11.685782] page_type: f5(slab) [ 11.686698] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.687369] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.688199] page dumped because: kasan: bad access detected [ 11.688673] [ 11.688802] Memory state around the buggy address: [ 11.689088] ffff8881028c9300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 11.689688] ffff8881028c9380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.690279] >ffff8881028c9400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.690753] ^ [ 11.691226] ffff8881028c9480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.691697] ffff8881028c9500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.691944] ==================================================================