Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.534263] ================================================================== [ 17.534379] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 17.534496] Read of size 64 at addr fff00000c58f4a84 by task kunit_try_catch/182 [ 17.534549] [ 17.534588] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 17.534693] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.534731] Hardware name: linux,dummy-virt (DT) [ 17.534764] Call trace: [ 17.534786] show_stack+0x20/0x38 (C) [ 17.534833] dump_stack_lvl+0x8c/0xd0 [ 17.534879] print_report+0x118/0x608 [ 17.534925] kasan_report+0xdc/0x128 [ 17.534969] kasan_check_range+0x100/0x1a8 [ 17.535028] __asan_memmove+0x3c/0x98 [ 17.535144] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 17.535355] kunit_try_run_case+0x170/0x3f0 [ 17.535490] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.535585] kthread+0x328/0x630 [ 17.535684] ret_from_fork+0x10/0x20 [ 17.535831] [ 17.535944] Allocated by task 182: [ 17.536029] kasan_save_stack+0x3c/0x68 [ 17.536151] kasan_save_track+0x20/0x40 [ 17.536305] kasan_save_alloc_info+0x40/0x58 [ 17.536382] __kasan_kmalloc+0xd4/0xd8 [ 17.536480] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.536522] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 17.536586] kunit_try_run_case+0x170/0x3f0 [ 17.536627] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.536672] kthread+0x328/0x630 [ 17.536741] ret_from_fork+0x10/0x20 [ 17.536904] [ 17.537060] The buggy address belongs to the object at fff00000c58f4a80 [ 17.537060] which belongs to the cache kmalloc-64 of size 64 [ 17.537184] The buggy address is located 4 bytes inside of [ 17.537184] allocated 64-byte region [fff00000c58f4a80, fff00000c58f4ac0) [ 17.537273] [ 17.537302] The buggy address belongs to the physical page: [ 17.537335] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058f4 [ 17.537389] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.537440] page_type: f5(slab) [ 17.537501] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 17.537553] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 17.537605] page dumped because: kasan: bad access detected [ 17.537635] [ 17.537653] Memory state around the buggy address: [ 17.537686] fff00000c58f4980: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 17.537731] fff00000c58f4a00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 17.537785] >fff00000c58f4a80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 17.537825] ^ [ 17.537860] fff00000c58f4b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.537904] fff00000c58f4b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.537959] ==================================================================
[ 11.670145] ================================================================== [ 11.670635] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.670948] Read of size 64 at addr ffff888103105e04 by task kunit_try_catch/199 [ 11.671261] [ 11.671539] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.671586] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.671598] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.671617] Call Trace: [ 11.671628] <TASK> [ 11.671642] dump_stack_lvl+0x73/0xb0 [ 11.671670] print_report+0xd1/0x650 [ 11.671692] ? __virt_addr_valid+0x1db/0x2d0 [ 11.671714] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.671739] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.671761] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.671784] kasan_report+0x141/0x180 [ 11.671804] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.671832] kasan_check_range+0x10c/0x1c0 [ 11.671854] __asan_memmove+0x27/0x70 [ 11.671873] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.671896] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.671919] ? __schedule+0x10cc/0x2b60 [ 11.671940] ? __pfx_read_tsc+0x10/0x10 [ 11.671961] ? ktime_get_ts64+0x86/0x230 [ 11.671984] kunit_try_run_case+0x1a5/0x480 [ 11.672008] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.672043] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.672178] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.672202] ? __kthread_parkme+0x82/0x180 [ 11.672221] ? preempt_count_sub+0x50/0x80 [ 11.672243] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.672265] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.672286] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.672308] kthread+0x337/0x6f0 [ 11.672326] ? trace_preempt_on+0x20/0xc0 [ 11.672347] ? __pfx_kthread+0x10/0x10 [ 11.672366] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.672386] ? calculate_sigpending+0x7b/0xa0 [ 11.672408] ? __pfx_kthread+0x10/0x10 [ 11.672428] ret_from_fork+0x116/0x1d0 [ 11.672445] ? __pfx_kthread+0x10/0x10 [ 11.672464] ret_from_fork_asm+0x1a/0x30 [ 11.672493] </TASK> [ 11.672503] [ 11.679989] Allocated by task 199: [ 11.680146] kasan_save_stack+0x45/0x70 [ 11.680355] kasan_save_track+0x18/0x40 [ 11.680652] kasan_save_alloc_info+0x3b/0x50 [ 11.680806] __kasan_kmalloc+0xb7/0xc0 [ 11.680978] __kmalloc_cache_noprof+0x189/0x420 [ 11.681206] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.681514] kunit_try_run_case+0x1a5/0x480 [ 11.681706] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.681906] kthread+0x337/0x6f0 [ 11.682034] ret_from_fork+0x116/0x1d0 [ 11.682164] ret_from_fork_asm+0x1a/0x30 [ 11.682299] [ 11.682393] The buggy address belongs to the object at ffff888103105e00 [ 11.682393] which belongs to the cache kmalloc-64 of size 64 [ 11.682921] The buggy address is located 4 bytes inside of [ 11.682921] allocated 64-byte region [ffff888103105e00, ffff888103105e40) [ 11.683560] [ 11.683629] The buggy address belongs to the physical page: [ 11.683926] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103105 [ 11.684691] flags: 0x200000000000000(node=0|zone=2) [ 11.684859] page_type: f5(slab) [ 11.684977] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.685215] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.685812] page dumped because: kasan: bad access detected [ 11.686083] [ 11.686180] Memory state around the buggy address: [ 11.686530] ffff888103105d00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.686810] ffff888103105d80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.687260] >ffff888103105e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.687523] ^ [ 11.687767] ffff888103105e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.688119] ffff888103105f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.688564] ==================================================================