Date
July 10, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.008867] ================================================================== [ 16.008929] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.008988] Read of size 64 at addr fff00000c642ee04 by task kunit_try_catch/182 [ 16.009056] [ 16.009125] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.009256] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.009284] Hardware name: linux,dummy-virt (DT) [ 16.009314] Call trace: [ 16.009339] show_stack+0x20/0x38 (C) [ 16.009546] dump_stack_lvl+0x8c/0xd0 [ 16.009630] print_report+0x118/0x608 [ 16.009685] kasan_report+0xdc/0x128 [ 16.009740] kasan_check_range+0x100/0x1a8 [ 16.009878] __asan_memmove+0x3c/0x98 [ 16.009969] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.010098] kunit_try_run_case+0x170/0x3f0 [ 16.010160] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.010218] kthread+0x328/0x630 [ 16.010261] ret_from_fork+0x10/0x20 [ 16.010329] [ 16.010795] Allocated by task 182: [ 16.010886] kasan_save_stack+0x3c/0x68 [ 16.010995] kasan_save_track+0x20/0x40 [ 16.011075] kasan_save_alloc_info+0x40/0x58 [ 16.011143] __kasan_kmalloc+0xd4/0xd8 [ 16.011251] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.011330] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 16.011392] kunit_try_run_case+0x170/0x3f0 [ 16.011490] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.011559] kthread+0x328/0x630 [ 16.011594] ret_from_fork+0x10/0x20 [ 16.011668] [ 16.011930] The buggy address belongs to the object at fff00000c642ee00 [ 16.011930] which belongs to the cache kmalloc-64 of size 64 [ 16.012006] The buggy address is located 4 bytes inside of [ 16.012006] allocated 64-byte region [fff00000c642ee00, fff00000c642ee40) [ 16.012481] [ 16.012651] The buggy address belongs to the physical page: [ 16.012691] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10642e [ 16.012845] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.012912] page_type: f5(slab) [ 16.012965] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.013026] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.013067] page dumped because: kasan: bad access detected [ 16.013111] [ 16.013129] Memory state around the buggy address: [ 16.013173] fff00000c642ed00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 16.013216] fff00000c642ed80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.013258] >fff00000c642ee00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.013295] ^ [ 16.013329] fff00000c642ee80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.013370] fff00000c642ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.013408] ==================================================================
[ 12.910187] ================================================================== [ 12.910803] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.911059] Read of size 64 at addr ffff8881027af484 by task kunit_try_catch/199 [ 12.911280] [ 12.911384] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.911425] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.911435] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.911454] Call Trace: [ 12.911465] <TASK> [ 12.911479] dump_stack_lvl+0x73/0xb0 [ 12.911507] print_report+0xd1/0x650 [ 12.911529] ? __virt_addr_valid+0x1db/0x2d0 [ 12.911550] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.911574] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.911596] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.911621] kasan_report+0x141/0x180 [ 12.911642] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.911671] kasan_check_range+0x10c/0x1c0 [ 12.911694] __asan_memmove+0x27/0x70 [ 12.911714] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.911738] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.911764] ? __schedule+0x10cc/0x2b60 [ 12.911785] ? __pfx_read_tsc+0x10/0x10 [ 12.911806] ? ktime_get_ts64+0x86/0x230 [ 12.911829] kunit_try_run_case+0x1a5/0x480 [ 12.911852] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.911875] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.911898] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.911921] ? __kthread_parkme+0x82/0x180 [ 12.912218] ? preempt_count_sub+0x50/0x80 [ 12.912248] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.912273] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.912297] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.912322] kthread+0x337/0x6f0 [ 12.912341] ? trace_preempt_on+0x20/0xc0 [ 12.912391] ? __pfx_kthread+0x10/0x10 [ 12.912522] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.912544] ? calculate_sigpending+0x7b/0xa0 [ 12.912567] ? __pfx_kthread+0x10/0x10 [ 12.912588] ret_from_fork+0x116/0x1d0 [ 12.912607] ? __pfx_kthread+0x10/0x10 [ 12.912627] ret_from_fork_asm+0x1a/0x30 [ 12.912658] </TASK> [ 12.912669] [ 12.923637] Allocated by task 199: [ 12.923769] kasan_save_stack+0x45/0x70 [ 12.923919] kasan_save_track+0x18/0x40 [ 12.924055] kasan_save_alloc_info+0x3b/0x50 [ 12.924210] __kasan_kmalloc+0xb7/0xc0 [ 12.924342] __kmalloc_cache_noprof+0x189/0x420 [ 12.924509] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.924677] kunit_try_run_case+0x1a5/0x480 [ 12.924822] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.924996] kthread+0x337/0x6f0 [ 12.925113] ret_from_fork+0x116/0x1d0 [ 12.925243] ret_from_fork_asm+0x1a/0x30 [ 12.925883] [ 12.926310] The buggy address belongs to the object at ffff8881027af480 [ 12.926310] which belongs to the cache kmalloc-64 of size 64 [ 12.927411] The buggy address is located 4 bytes inside of [ 12.927411] allocated 64-byte region [ffff8881027af480, ffff8881027af4c0) [ 12.928652] [ 12.928852] The buggy address belongs to the physical page: [ 12.929389] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027af [ 12.930507] flags: 0x200000000000000(node=0|zone=2) [ 12.931052] page_type: f5(slab) [ 12.931384] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.932213] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.932971] page dumped because: kasan: bad access detected [ 12.933480] [ 12.933796] Memory state around the buggy address: [ 12.934215] ffff8881027af380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.935081] ffff8881027af400: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.935318] >ffff8881027af480: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.935999] ^ [ 12.936542] ffff8881027af500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.936990] ffff8881027af580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.937203] ==================================================================