Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.504834] ================================================================== [ 15.505274] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.505369] Read of size 64 at addr fff00000c3f90004 by task kunit_try_catch/182 [ 15.505575] [ 15.505610] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 15.505841] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.505944] Hardware name: linux,dummy-virt (DT) [ 15.505979] Call trace: [ 15.506014] show_stack+0x20/0x38 (C) [ 15.506067] dump_stack_lvl+0x8c/0xd0 [ 15.506113] print_report+0x118/0x5d0 [ 15.506321] kasan_report+0xdc/0x128 [ 15.506381] kasan_check_range+0x100/0x1a8 [ 15.506428] __asan_memmove+0x3c/0x98 [ 15.506791] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.506944] kunit_try_run_case+0x170/0x3f0 [ 15.507054] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.507204] kthread+0x328/0x630 [ 15.507317] ret_from_fork+0x10/0x20 [ 15.507386] [ 15.507404] Allocated by task 182: [ 15.507628] kasan_save_stack+0x3c/0x68 [ 15.507768] kasan_save_track+0x20/0x40 [ 15.507946] kasan_save_alloc_info+0x40/0x58 [ 15.508024] __kasan_kmalloc+0xd4/0xd8 [ 15.508190] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.508335] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.508381] kunit_try_run_case+0x170/0x3f0 [ 15.508832] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.508997] kthread+0x328/0x630 [ 15.509094] ret_from_fork+0x10/0x20 [ 15.509246] [ 15.509270] The buggy address belongs to the object at fff00000c3f90000 [ 15.509270] which belongs to the cache kmalloc-64 of size 64 [ 15.509352] The buggy address is located 4 bytes inside of [ 15.509352] allocated 64-byte region [fff00000c3f90000, fff00000c3f90040) [ 15.510181] [ 15.510251] The buggy address belongs to the physical page: [ 15.510645] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f90 [ 15.510745] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.510873] page_type: f5(slab) [ 15.510935] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.511075] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.511126] page dumped because: kasan: bad access detected [ 15.511436] [ 15.511625] Memory state around the buggy address: [ 15.511892] fff00000c3f8ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.512140] fff00000c3f8ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.512227] >fff00000c3f90000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.512396] ^ [ 15.512519] fff00000c3f90080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.512834] fff00000c3f90100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.512939] ==================================================================
[ 12.811686] ================================================================== [ 12.812225] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.812533] Read of size 64 at addr ffff888102b02b04 by task kunit_try_catch/199 [ 12.812973] [ 12.813071] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 12.813113] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.813125] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.813146] Call Trace: [ 12.813158] <TASK> [ 12.813171] dump_stack_lvl+0x73/0xb0 [ 12.813199] print_report+0xd1/0x610 [ 12.813443] ? __virt_addr_valid+0x1db/0x2d0 [ 12.813467] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.813492] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.813513] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.813537] kasan_report+0x141/0x180 [ 12.813559] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.813587] kasan_check_range+0x10c/0x1c0 [ 12.813610] __asan_memmove+0x27/0x70 [ 12.813629] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.813653] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.813678] ? __schedule+0x10c6/0x2b60 [ 12.813700] ? __pfx_read_tsc+0x10/0x10 [ 12.813720] ? ktime_get_ts64+0x86/0x230 [ 12.813744] kunit_try_run_case+0x1a5/0x480 [ 12.813768] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.813789] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.813826] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.813849] ? __kthread_parkme+0x82/0x180 [ 12.813869] ? preempt_count_sub+0x50/0x80 [ 12.813891] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.813914] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.813937] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.813960] kthread+0x337/0x6f0 [ 12.813979] ? trace_preempt_on+0x20/0xc0 [ 12.814001] ? __pfx_kthread+0x10/0x10 [ 12.814021] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.814041] ? calculate_sigpending+0x7b/0xa0 [ 12.814065] ? __pfx_kthread+0x10/0x10 [ 12.814086] ret_from_fork+0x116/0x1d0 [ 12.814112] ? __pfx_kthread+0x10/0x10 [ 12.814132] ret_from_fork_asm+0x1a/0x30 [ 12.814161] </TASK> [ 12.814171] [ 12.822037] Allocated by task 199: [ 12.822308] kasan_save_stack+0x45/0x70 [ 12.822510] kasan_save_track+0x18/0x40 [ 12.822677] kasan_save_alloc_info+0x3b/0x50 [ 12.822874] __kasan_kmalloc+0xb7/0xc0 [ 12.823040] __kmalloc_cache_noprof+0x189/0x420 [ 12.823346] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.823562] kunit_try_run_case+0x1a5/0x480 [ 12.823710] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.823897] kthread+0x337/0x6f0 [ 12.824058] ret_from_fork+0x116/0x1d0 [ 12.824242] ret_from_fork_asm+0x1a/0x30 [ 12.824708] [ 12.824832] The buggy address belongs to the object at ffff888102b02b00 [ 12.824832] which belongs to the cache kmalloc-64 of size 64 [ 12.825529] The buggy address is located 4 bytes inside of [ 12.825529] allocated 64-byte region [ffff888102b02b00, ffff888102b02b40) [ 12.826003] [ 12.826077] The buggy address belongs to the physical page: [ 12.826513] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b02 [ 12.826832] flags: 0x200000000000000(node=0|zone=2) [ 12.827046] page_type: f5(slab) [ 12.827199] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.827562] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.827883] page dumped because: kasan: bad access detected [ 12.828069] [ 12.828363] Memory state around the buggy address: [ 12.828593] ffff888102b02a00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.828882] ffff888102b02a80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.829166] >ffff888102b02b00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.829479] ^ [ 12.829728] ffff888102b02b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.830024] ffff888102b02c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.830283] ==================================================================