Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.866068] ================================================================== [ 16.866149] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.866213] Read of size 64 at addr fff00000c63bf884 by task kunit_try_catch/182 [ 16.866263] [ 16.866301] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.866394] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.866421] Hardware name: linux,dummy-virt (DT) [ 16.866452] Call trace: [ 16.866480] show_stack+0x20/0x38 (C) [ 16.866531] dump_stack_lvl+0x8c/0xd0 [ 16.866579] print_report+0x118/0x608 [ 16.866626] kasan_report+0xdc/0x128 [ 16.866670] kasan_check_range+0x100/0x1a8 [ 16.866719] __asan_memmove+0x3c/0x98 [ 16.867391] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.867919] kunit_try_run_case+0x170/0x3f0 [ 16.867975] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.868029] kthread+0x328/0x630 [ 16.868074] ret_from_fork+0x10/0x20 [ 16.868137] [ 16.868156] Allocated by task 182: [ 16.870060] kasan_save_stack+0x3c/0x68 [ 16.870342] kasan_save_track+0x20/0x40 [ 16.870408] kasan_save_alloc_info+0x40/0x58 [ 16.871085] __kasan_kmalloc+0xd4/0xd8 [ 16.871648] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.871746] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 16.871788] kunit_try_run_case+0x170/0x3f0 [ 16.871826] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.871901] kthread+0x328/0x630 [ 16.871935] ret_from_fork+0x10/0x20 [ 16.872161] [ 16.872295] The buggy address belongs to the object at fff00000c63bf880 [ 16.872295] which belongs to the cache kmalloc-64 of size 64 [ 16.872358] The buggy address is located 4 bytes inside of [ 16.872358] allocated 64-byte region [fff00000c63bf880, fff00000c63bf8c0) [ 16.872898] [ 16.872932] The buggy address belongs to the physical page: [ 16.872968] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063bf [ 16.873255] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.873439] page_type: f5(slab) [ 16.873723] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.873779] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.874211] page dumped because: kasan: bad access detected [ 16.874502] [ 16.874661] Memory state around the buggy address: [ 16.875372] fff00000c63bf780: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 16.875621] fff00000c63bf800: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.875709] >fff00000c63bf880: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.875787] ^ [ 16.875832] fff00000c63bf900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.875925] fff00000c63bf980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.876003] ==================================================================
[ 12.777735] ================================================================== [ 12.778429] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.778718] Read of size 64 at addr ffff88810320ec84 by task kunit_try_catch/199 [ 12.779921] [ 12.780208] CPU: 1 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.780483] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.780503] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.780524] Call Trace: [ 12.780536] <TASK> [ 12.780552] dump_stack_lvl+0x73/0xb0 [ 12.780585] print_report+0xd1/0x650 [ 12.780607] ? __virt_addr_valid+0x1db/0x2d0 [ 12.780631] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.780655] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.780678] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.780716] kasan_report+0x141/0x180 [ 12.780738] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.780767] kasan_check_range+0x10c/0x1c0 [ 12.780790] __asan_memmove+0x27/0x70 [ 12.780809] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.780834] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.780860] ? __schedule+0x10cc/0x2b60 [ 12.780881] ? __pfx_read_tsc+0x10/0x10 [ 12.780903] ? ktime_get_ts64+0x86/0x230 [ 12.780927] kunit_try_run_case+0x1a5/0x480 [ 12.780952] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.780974] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.780998] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.781033] ? __kthread_parkme+0x82/0x180 [ 12.781064] ? preempt_count_sub+0x50/0x80 [ 12.781087] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.781111] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.781135] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.781160] kthread+0x337/0x6f0 [ 12.781178] ? trace_preempt_on+0x20/0xc0 [ 12.781201] ? __pfx_kthread+0x10/0x10 [ 12.781221] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.781243] ? calculate_sigpending+0x7b/0xa0 [ 12.781266] ? __pfx_kthread+0x10/0x10 [ 12.781287] ret_from_fork+0x116/0x1d0 [ 12.781305] ? __pfx_kthread+0x10/0x10 [ 12.781324] ret_from_fork_asm+0x1a/0x30 [ 12.781356] </TASK> [ 12.781366] [ 12.791903] Allocated by task 199: [ 12.792362] kasan_save_stack+0x45/0x70 [ 12.792830] kasan_save_track+0x18/0x40 [ 12.793306] kasan_save_alloc_info+0x3b/0x50 [ 12.793818] __kasan_kmalloc+0xb7/0xc0 [ 12.794305] __kmalloc_cache_noprof+0x189/0x420 [ 12.794647] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.794836] kunit_try_run_case+0x1a5/0x480 [ 12.794986] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.795392] kthread+0x337/0x6f0 [ 12.795947] ret_from_fork+0x116/0x1d0 [ 12.796395] ret_from_fork_asm+0x1a/0x30 [ 12.796548] [ 12.796624] The buggy address belongs to the object at ffff88810320ec80 [ 12.796624] which belongs to the cache kmalloc-64 of size 64 [ 12.796992] The buggy address is located 4 bytes inside of [ 12.796992] allocated 64-byte region [ffff88810320ec80, ffff88810320ecc0) [ 12.797348] [ 12.797421] The buggy address belongs to the physical page: [ 12.797594] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10320e [ 12.798201] flags: 0x200000000000000(node=0|zone=2) [ 12.798712] page_type: f5(slab) [ 12.799002] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.799712] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.800470] page dumped because: kasan: bad access detected [ 12.800991] [ 12.801162] Memory state around the buggy address: [ 12.801688] ffff88810320eb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.802330] ffff88810320ec00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.802949] >ffff88810320ec80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.803659] ^ [ 12.804168] ffff88810320ed00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.804606] ffff88810320ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.804832] ==================================================================