Date
June 3, 2025, 7:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.394341] ================================================================== [ 18.394401] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.394473] Read of size 64 at addr fff00000c65b5984 by task kunit_try_catch/182 [ 18.394521] [ 18.394553] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT [ 18.394795] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.394853] Hardware name: linux,dummy-virt (DT) [ 18.394891] Call trace: [ 18.394913] show_stack+0x20/0x38 (C) [ 18.394964] dump_stack_lvl+0x8c/0xd0 [ 18.395017] print_report+0x118/0x608 [ 18.395065] kasan_report+0xdc/0x128 [ 18.395110] kasan_check_range+0x100/0x1a8 [ 18.395157] __asan_memmove+0x3c/0x98 [ 18.395201] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 18.395252] kunit_try_run_case+0x170/0x3f0 [ 18.395453] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.395545] kthread+0x328/0x630 [ 18.395614] ret_from_fork+0x10/0x20 [ 18.395761] [ 18.395799] Allocated by task 182: [ 18.395826] kasan_save_stack+0x3c/0x68 [ 18.395868] kasan_save_track+0x20/0x40 [ 18.395905] kasan_save_alloc_info+0x40/0x58 [ 18.395942] __kasan_kmalloc+0xd4/0xd8 [ 18.395979] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.396045] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 18.396088] kunit_try_run_case+0x170/0x3f0 [ 18.396128] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.396171] kthread+0x328/0x630 [ 18.396204] ret_from_fork+0x10/0x20 [ 18.396238] [ 18.396257] The buggy address belongs to the object at fff00000c65b5980 [ 18.396257] which belongs to the cache kmalloc-64 of size 64 [ 18.396409] The buggy address is located 4 bytes inside of [ 18.396409] allocated 64-byte region [fff00000c65b5980, fff00000c65b59c0) [ 18.396537] [ 18.396590] The buggy address belongs to the physical page: [ 18.396704] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065b5 [ 18.396805] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.396950] page_type: f5(slab) [ 18.397040] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.397156] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.397259] page dumped because: kasan: bad access detected [ 18.397312] [ 18.397332] Memory state around the buggy address: [ 18.397583] fff00000c65b5880: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.397669] fff00000c65b5900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.397798] >fff00000c65b5980: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.397932] ^ [ 18.398018] fff00000c65b5a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.398089] fff00000c65b5a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.398168] ==================================================================
[ 14.797599] ================================================================== [ 14.798396] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.799152] Read of size 64 at addr ffff888103333784 by task kunit_try_catch/199 [ 14.799784] [ 14.800088] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250603 #1 PREEMPT(voluntary) [ 14.800221] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.800247] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.800286] Call Trace: [ 14.800307] <TASK> [ 14.800342] dump_stack_lvl+0x73/0xb0 [ 14.800405] print_report+0xd1/0x650 [ 14.800446] ? __virt_addr_valid+0x1db/0x2d0 [ 14.800500] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.800545] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.800591] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.800634] kasan_report+0x141/0x180 [ 14.800714] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.800781] kasan_check_range+0x10c/0x1c0 [ 14.800823] __asan_memmove+0x27/0x70 [ 14.800863] kmalloc_memmove_invalid_size+0x16f/0x330 [ 14.800914] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 14.801032] ? __schedule+0x10cc/0x2b60 [ 14.801122] ? __pfx_read_tsc+0x10/0x10 [ 14.801171] ? ktime_get_ts64+0x86/0x230 [ 14.801256] kunit_try_run_case+0x1a5/0x480 [ 14.801306] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.801349] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.801445] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.801551] ? __kthread_parkme+0x82/0x180 [ 14.801615] ? preempt_count_sub+0x50/0x80 [ 14.801669] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.801718] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.801772] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.801827] kthread+0x337/0x6f0 [ 14.801882] ? trace_preempt_on+0x20/0xc0 [ 14.801925] ? __pfx_kthread+0x10/0x10 [ 14.801960] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.801997] ? calculate_sigpending+0x7b/0xa0 [ 14.802036] ? __pfx_kthread+0x10/0x10 [ 14.802071] ret_from_fork+0x116/0x1d0 [ 14.802102] ? __pfx_kthread+0x10/0x10 [ 14.802134] ret_from_fork_asm+0x1a/0x30 [ 14.802185] </TASK> [ 14.802242] [ 14.815854] Allocated by task 199: [ 14.816112] kasan_save_stack+0x45/0x70 [ 14.816674] kasan_save_track+0x18/0x40 [ 14.817215] kasan_save_alloc_info+0x3b/0x50 [ 14.817610] __kasan_kmalloc+0xb7/0xc0 [ 14.818045] __kmalloc_cache_noprof+0x189/0x420 [ 14.818450] kmalloc_memmove_invalid_size+0xac/0x330 [ 14.819474] kunit_try_run_case+0x1a5/0x480 [ 14.819824] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.820076] kthread+0x337/0x6f0 [ 14.820267] ret_from_fork+0x116/0x1d0 [ 14.820618] ret_from_fork_asm+0x1a/0x30 [ 14.821123] [ 14.821323] The buggy address belongs to the object at ffff888103333780 [ 14.821323] which belongs to the cache kmalloc-64 of size 64 [ 14.822387] The buggy address is located 4 bytes inside of [ 14.822387] allocated 64-byte region [ffff888103333780, ffff8881033337c0) [ 14.823301] [ 14.823453] The buggy address belongs to the physical page: [ 14.823702] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103333 [ 14.824904] flags: 0x200000000000000(node=0|zone=2) [ 14.825373] page_type: f5(slab) [ 14.825680] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 14.826531] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 14.826838] page dumped because: kasan: bad access detected [ 14.827054] [ 14.827172] Memory state around the buggy address: [ 14.827637] ffff888103333680: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 14.829097] ffff888103333700: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 14.830013] >ffff888103333780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 14.830682] ^ [ 14.831205] ffff888103333800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.832167] ffff888103333880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.832990] ==================================================================