Date
July 1, 2025, 11:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.470159] ================================================================== [ 18.470356] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.470437] Read of size 64 at addr fff00000c76fcc04 by task kunit_try_catch/183 [ 18.470494] [ 18.470537] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.470632] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.470661] Hardware name: linux,dummy-virt (DT) [ 18.470696] Call trace: [ 18.470721] show_stack+0x20/0x38 (C) [ 18.470775] dump_stack_lvl+0x8c/0xd0 [ 18.470827] print_report+0x118/0x608 [ 18.470875] kasan_report+0xdc/0x128 [ 18.470924] kasan_check_range+0x100/0x1a8 [ 18.470973] __asan_memmove+0x3c/0x98 [ 18.471022] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.471076] kunit_try_run_case+0x170/0x3f0 [ 18.471127] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.471199] kthread+0x328/0x630 [ 18.471245] ret_from_fork+0x10/0x20 [ 18.471296] [ 18.471317] Allocated by task 183: [ 18.471346] kasan_save_stack+0x3c/0x68 [ 18.471391] kasan_save_track+0x20/0x40 [ 18.471432] kasan_save_alloc_info+0x40/0x58 [ 18.471476] __kasan_kmalloc+0xd4/0xd8 [ 18.471514] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.471558] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 18.471602] kunit_try_run_case+0x170/0x3f0 [ 18.471643] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.471693] kthread+0x328/0x630 [ 18.471727] ret_from_fork+0x10/0x20 [ 18.471767] [ 18.471787] The buggy address belongs to the object at fff00000c76fcc00 [ 18.471787] which belongs to the cache kmalloc-64 of size 64 [ 18.471853] The buggy address is located 4 bytes inside of [ 18.471853] allocated 64-byte region [fff00000c76fcc00, fff00000c76fcc40) [ 18.471933] [ 18.471957] The buggy address belongs to the physical page: [ 18.471994] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076fc [ 18.472054] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.472109] page_type: f5(slab) [ 18.472164] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.472220] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.472264] page dumped because: kasan: bad access detected [ 18.472300] [ 18.472318] Memory state around the buggy address: [ 18.472356] fff00000c76fcb00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.472402] fff00000c76fcb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.472451] >fff00000c76fcc00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.472494] ^ [ 18.473002] fff00000c76fcc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.473159] fff00000c76fcd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.473220] ==================================================================
[ 11.718174] ================================================================== [ 11.718704] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.719039] Read of size 64 at addr ffff888102efde84 by task kunit_try_catch/199 [ 11.719360] [ 11.719487] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.719532] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.719544] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.719565] Call Trace: [ 11.719578] <TASK> [ 11.719596] dump_stack_lvl+0x73/0xb0 [ 11.719624] print_report+0xd1/0x650 [ 11.719647] ? __virt_addr_valid+0x1db/0x2d0 [ 11.719670] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.719692] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.719712] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.719735] kasan_report+0x141/0x180 [ 11.719755] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.719782] kasan_check_range+0x10c/0x1c0 [ 11.719804] __asan_memmove+0x27/0x70 [ 11.719823] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.719845] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.719869] ? __schedule+0x10cc/0x2b60 [ 11.719890] ? __pfx_read_tsc+0x10/0x10 [ 11.719910] ? ktime_get_ts64+0x86/0x230 [ 11.719946] kunit_try_run_case+0x1a5/0x480 [ 11.719970] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.719991] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.720013] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.720034] ? __kthread_parkme+0x82/0x180 [ 11.720054] ? preempt_count_sub+0x50/0x80 [ 11.720078] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.720100] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.720121] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.720142] kthread+0x337/0x6f0 [ 11.720160] ? trace_preempt_on+0x20/0xc0 [ 11.720182] ? __pfx_kthread+0x10/0x10 [ 11.720202] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.720221] ? calculate_sigpending+0x7b/0xa0 [ 11.720244] ? __pfx_kthread+0x10/0x10 [ 11.720263] ret_from_fork+0x116/0x1d0 [ 11.720280] ? __pfx_kthread+0x10/0x10 [ 11.720299] ret_from_fork_asm+0x1a/0x30 [ 11.720329] </TASK> [ 11.720339] [ 11.728602] Allocated by task 199: [ 11.728788] kasan_save_stack+0x45/0x70 [ 11.729078] kasan_save_track+0x18/0x40 [ 11.729278] kasan_save_alloc_info+0x3b/0x50 [ 11.729591] __kasan_kmalloc+0xb7/0xc0 [ 11.729773] __kmalloc_cache_noprof+0x189/0x420 [ 11.730030] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.730202] kunit_try_run_case+0x1a5/0x480 [ 11.730349] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.730572] kthread+0x337/0x6f0 [ 11.730741] ret_from_fork+0x116/0x1d0 [ 11.730924] ret_from_fork_asm+0x1a/0x30 [ 11.731385] [ 11.731483] The buggy address belongs to the object at ffff888102efde80 [ 11.731483] which belongs to the cache kmalloc-64 of size 64 [ 11.732126] The buggy address is located 4 bytes inside of [ 11.732126] allocated 64-byte region [ffff888102efde80, ffff888102efdec0) [ 11.732579] [ 11.732680] The buggy address belongs to the physical page: [ 11.732945] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102efd [ 11.733313] flags: 0x200000000000000(node=0|zone=2) [ 11.733526] page_type: f5(slab) [ 11.733882] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.734248] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.734525] page dumped because: kasan: bad access detected [ 11.734846] [ 11.734920] Memory state around the buggy address: [ 11.735391] ffff888102efdd80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.735669] ffff888102efde00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.736047] >ffff888102efde80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.736425] ^ [ 11.736677] ffff888102efdf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.736900] ffff888102efdf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.737117] ==================================================================