Date
July 17, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.743466] ================================================================== [ 16.743542] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.743609] Read of size 64 at addr fff00000c7848a04 by task kunit_try_catch/182 [ 16.743660] [ 16.743695] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 16.743815] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.743842] Hardware name: linux,dummy-virt (DT) [ 16.743885] Call trace: [ 16.743908] show_stack+0x20/0x38 (C) [ 16.743958] dump_stack_lvl+0x8c/0xd0 [ 16.744004] print_report+0x118/0x5d0 [ 16.744337] kasan_report+0xdc/0x128 [ 16.744391] kasan_check_range+0x100/0x1a8 [ 16.744500] __asan_memmove+0x3c/0x98 [ 16.744633] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.744744] kunit_try_run_case+0x170/0x3f0 [ 16.744829] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.744958] kthread+0x328/0x630 [ 16.745096] ret_from_fork+0x10/0x20 [ 16.745326] [ 16.745462] Allocated by task 182: [ 16.745560] kasan_save_stack+0x3c/0x68 [ 16.745677] kasan_save_track+0x20/0x40 [ 16.745745] kasan_save_alloc_info+0x40/0x58 [ 16.745853] __kasan_kmalloc+0xd4/0xd8 [ 16.745923] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.746174] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 16.746413] kunit_try_run_case+0x170/0x3f0 [ 16.746530] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.746585] kthread+0x328/0x630 [ 16.746616] ret_from_fork+0x10/0x20 [ 16.746653] [ 16.746673] The buggy address belongs to the object at fff00000c7848a00 [ 16.746673] which belongs to the cache kmalloc-64 of size 64 [ 16.746859] The buggy address is located 4 bytes inside of [ 16.746859] allocated 64-byte region [fff00000c7848a00, fff00000c7848a40) [ 16.746976] [ 16.747027] The buggy address belongs to the physical page: [ 16.747102] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107848 [ 16.747232] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.747328] page_type: f5(slab) [ 16.747405] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.747455] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.747504] page dumped because: kasan: bad access detected [ 16.747535] [ 16.747552] Memory state around the buggy address: [ 16.747766] fff00000c7848900: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 16.747959] fff00000c7848980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.748028] >fff00000c7848a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.748198] ^ [ 16.748254] fff00000c7848a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.748315] fff00000c7848b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.748354] ==================================================================
[ 12.477797] ================================================================== [ 12.478476] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.478852] Read of size 64 at addr ffff888102f44004 by task kunit_try_catch/199 [ 12.479280] [ 12.479395] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.479456] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.479467] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.479489] Call Trace: [ 12.479501] <TASK> [ 12.479518] dump_stack_lvl+0x73/0xb0 [ 12.479548] print_report+0xd1/0x610 [ 12.479569] ? __virt_addr_valid+0x1db/0x2d0 [ 12.479980] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.480011] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.480034] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.480073] kasan_report+0x141/0x180 [ 12.480098] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.480127] kasan_check_range+0x10c/0x1c0 [ 12.480150] __asan_memmove+0x27/0x70 [ 12.480169] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.480192] ? __kasan_check_write+0x18/0x20 [ 12.480211] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.480237] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 12.480264] ? __pfx_read_tsc+0x10/0x10 [ 12.480285] ? ktime_get_ts64+0x86/0x230 [ 12.480310] kunit_try_run_case+0x1a5/0x480 [ 12.480334] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.480356] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 12.480377] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.480400] ? __kthread_parkme+0x82/0x180 [ 12.480421] ? preempt_count_sub+0x50/0x80 [ 12.480444] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.480467] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.480490] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.480513] kthread+0x337/0x6f0 [ 12.480531] ? trace_preempt_on+0x20/0xc0 [ 12.480554] ? __pfx_kthread+0x10/0x10 [ 12.480573] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.480609] ? calculate_sigpending+0x7b/0xa0 [ 12.480633] ? __pfx_kthread+0x10/0x10 [ 12.480653] ret_from_fork+0x116/0x1d0 [ 12.480670] ? __pfx_kthread+0x10/0x10 [ 12.480689] ret_from_fork_asm+0x1a/0x30 [ 12.480721] </TASK> [ 12.480732] [ 12.492197] Allocated by task 199: [ 12.492376] kasan_save_stack+0x45/0x70 [ 12.493114] kasan_save_track+0x18/0x40 [ 12.493333] kasan_save_alloc_info+0x3b/0x50 [ 12.493548] __kasan_kmalloc+0xb7/0xc0 [ 12.493701] __kmalloc_cache_noprof+0x189/0x420 [ 12.494131] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.494468] kunit_try_run_case+0x1a5/0x480 [ 12.494844] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.495108] kthread+0x337/0x6f0 [ 12.495266] ret_from_fork+0x116/0x1d0 [ 12.495446] ret_from_fork_asm+0x1a/0x30 [ 12.495866] [ 12.495955] The buggy address belongs to the object at ffff888102f44000 [ 12.495955] which belongs to the cache kmalloc-64 of size 64 [ 12.496743] The buggy address is located 4 bytes inside of [ 12.496743] allocated 64-byte region [ffff888102f44000, ffff888102f44040) [ 12.497263] [ 12.497350] The buggy address belongs to the physical page: [ 12.497807] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f44 [ 12.498076] flags: 0x200000000000000(node=0|zone=2) [ 12.498416] page_type: f5(slab) [ 12.498907] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.499356] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.499838] page dumped because: kasan: bad access detected [ 12.500219] [ 12.500323] Memory state around the buggy address: [ 12.500704] ffff888102f43f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.501275] ffff888102f43f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.501534] >ffff888102f44000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.502076] ^ [ 12.502471] ffff888102f44080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.502800] ffff888102f44100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.503362] ==================================================================