Date
July 8, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.221765] ================================================================== [ 31.221828] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 31.221885] Read of size 64 at addr fff00000c9acb284 by task kunit_try_catch/213 [ 31.221952] [ 31.221984] CPU: 0 UID: 0 PID: 213 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT [ 31.222546] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.222578] Hardware name: linux,dummy-virt (DT) [ 31.222714] Call trace: [ 31.222741] show_stack+0x20/0x38 (C) [ 31.222792] dump_stack_lvl+0x8c/0xd0 [ 31.222839] print_report+0x118/0x5d0 [ 31.222886] kasan_report+0xdc/0x128 [ 31.222931] kasan_check_range+0x100/0x1a8 [ 31.222983] __asan_memmove+0x3c/0x98 [ 31.223120] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 31.223222] kunit_try_run_case+0x170/0x3f0 [ 31.223273] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.223573] kthread+0x328/0x630 [ 31.223941] ret_from_fork+0x10/0x20 [ 31.224205] [ 31.224241] Allocated by task 213: [ 31.224272] kasan_save_stack+0x3c/0x68 [ 31.224315] kasan_save_track+0x20/0x40 [ 31.224553] kasan_save_alloc_info+0x40/0x58 [ 31.224744] __kasan_kmalloc+0xd4/0xd8 [ 31.224795] __kmalloc_cache_noprof+0x16c/0x3c0 [ 31.224868] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 31.224911] kunit_try_run_case+0x170/0x3f0 [ 31.224950] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.224995] kthread+0x328/0x630 [ 31.225038] ret_from_fork+0x10/0x20 [ 31.225147] [ 31.225175] The buggy address belongs to the object at fff00000c9acb280 [ 31.225175] which belongs to the cache kmalloc-64 of size 64 [ 31.225245] The buggy address is located 4 bytes inside of [ 31.225245] allocated 64-byte region [fff00000c9acb280, fff00000c9acb2c0) [ 31.225423] [ 31.225456] The buggy address belongs to the physical page: [ 31.225489] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109acb [ 31.225545] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.225595] page_type: f5(slab) [ 31.225634] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 31.225684] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 31.225726] page dumped because: kasan: bad access detected [ 31.225759] [ 31.226404] Memory state around the buggy address: [ 31.226468] fff00000c9acb180: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 31.226513] fff00000c9acb200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 31.226991] >fff00000c9acb280: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 31.227033] ^ [ 31.227100] fff00000c9acb300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.227154] fff00000c9acb380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.227459] ==================================================================
[ 23.558115] ================================================================== [ 23.559427] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.560307] Read of size 64 at addr ffff8881059b5d04 by task kunit_try_catch/230 [ 23.561228] [ 23.561344] CPU: 0 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) [ 23.561402] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.561415] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.561438] Call Trace: [ 23.561453] <TASK> [ 23.561473] dump_stack_lvl+0x73/0xb0 [ 23.561508] print_report+0xd1/0x610 [ 23.561533] ? __virt_addr_valid+0x1db/0x2d0 [ 23.561559] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.561584] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.561612] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.561638] kasan_report+0x141/0x180 [ 23.561661] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.561691] kasan_check_range+0x10c/0x1c0 [ 23.561716] __asan_memmove+0x27/0x70 [ 23.561743] kmalloc_memmove_invalid_size+0x16f/0x330 [ 23.561780] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 23.561806] ? __schedule+0x10cc/0x2b60 [ 23.561848] ? __pfx_read_tsc+0x10/0x10 [ 23.562040] ? ktime_get_ts64+0x86/0x230 [ 23.562071] kunit_try_run_case+0x1a5/0x480 [ 23.562097] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.562118] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 23.562140] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.562168] ? __kthread_parkme+0x82/0x180 [ 23.562190] ? preempt_count_sub+0x50/0x80 [ 23.562214] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.562236] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.562274] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.562301] kthread+0x337/0x6f0 [ 23.562322] ? trace_preempt_on+0x20/0xc0 [ 23.562348] ? __pfx_kthread+0x10/0x10 [ 23.562370] ? _raw_spin_unlock_irq+0x47/0x80 [ 23.562397] ? calculate_sigpending+0x7b/0xa0 [ 23.562425] ? __pfx_kthread+0x10/0x10 [ 23.562448] ret_from_fork+0x116/0x1d0 [ 23.562467] ? __pfx_kthread+0x10/0x10 [ 23.562490] ret_from_fork_asm+0x1a/0x30 [ 23.562525] </TASK> [ 23.562538] [ 23.577171] Allocated by task 230: [ 23.577516] kasan_save_stack+0x45/0x70 [ 23.577909] kasan_save_track+0x18/0x40 [ 23.578231] kasan_save_alloc_info+0x3b/0x50 [ 23.578394] __kasan_kmalloc+0xb7/0xc0 [ 23.578519] __kmalloc_cache_noprof+0x189/0x420 [ 23.578670] kmalloc_memmove_invalid_size+0xac/0x330 [ 23.578851] kunit_try_run_case+0x1a5/0x480 [ 23.578989] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.579266] kthread+0x337/0x6f0 [ 23.579433] ret_from_fork+0x116/0x1d0 [ 23.579595] ret_from_fork_asm+0x1a/0x30 [ 23.579864] [ 23.580019] The buggy address belongs to the object at ffff8881059b5d00 [ 23.580019] which belongs to the cache kmalloc-64 of size 64 [ 23.581090] The buggy address is located 4 bytes inside of [ 23.581090] allocated 64-byte region [ffff8881059b5d00, ffff8881059b5d40) [ 23.582259] [ 23.582425] The buggy address belongs to the physical page: [ 23.582963] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059b5 [ 23.583636] flags: 0x200000000000000(node=0|zone=2) [ 23.583826] page_type: f5(slab) [ 23.584099] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 23.584741] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 23.585290] page dumped because: kasan: bad access detected [ 23.585457] [ 23.585520] Memory state around the buggy address: [ 23.585671] ffff8881059b5c00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 23.585894] ffff8881059b5c80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 23.586357] >ffff8881059b5d00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 23.586600] ^ [ 23.586957] ffff8881059b5d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.587271] ffff8881059b5e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.587548] ==================================================================