Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.409184] ================================================================== [ 15.409268] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.409346] Read of size 64 at addr fff00000c7010504 by task kunit_try_catch/182 [ 15.409397] [ 15.409427] CPU: 0 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.409515] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.409630] Hardware name: linux,dummy-virt (DT) [ 15.409799] Call trace: [ 15.409869] show_stack+0x20/0x38 (C) [ 15.409919] dump_stack_lvl+0x8c/0xd0 [ 15.409982] print_report+0x118/0x5d0 [ 15.410029] kasan_report+0xdc/0x128 [ 15.410106] kasan_check_range+0x100/0x1a8 [ 15.410241] __asan_memmove+0x3c/0x98 [ 15.410402] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.410464] kunit_try_run_case+0x170/0x3f0 [ 15.410522] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.410593] kthread+0x328/0x630 [ 15.410635] ret_from_fork+0x10/0x20 [ 15.410691] [ 15.410718] Allocated by task 182: [ 15.410860] kasan_save_stack+0x3c/0x68 [ 15.410901] kasan_save_track+0x20/0x40 [ 15.411053] kasan_save_alloc_info+0x40/0x58 [ 15.411109] __kasan_kmalloc+0xd4/0xd8 [ 15.411462] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.411538] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.411653] kunit_try_run_case+0x170/0x3f0 [ 15.411751] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.411861] kthread+0x328/0x630 [ 15.411960] ret_from_fork+0x10/0x20 [ 15.412087] [ 15.412157] The buggy address belongs to the object at fff00000c7010500 [ 15.412157] which belongs to the cache kmalloc-64 of size 64 [ 15.412281] The buggy address is located 4 bytes inside of [ 15.412281] allocated 64-byte region [fff00000c7010500, fff00000c7010540) [ 15.412458] [ 15.412535] The buggy address belongs to the physical page: [ 15.412714] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107010 [ 15.412797] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.413151] page_type: f5(slab) [ 15.413275] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.413392] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.413474] page dumped because: kasan: bad access detected [ 15.413573] [ 15.413647] Memory state around the buggy address: [ 15.413743] fff00000c7010400: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 15.413857] fff00000c7010480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 15.413921] >fff00000c7010500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.413976] ^ [ 15.414280] fff00000c7010580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.414331] fff00000c7010600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.414369] ==================================================================
[ 12.518842] ================================================================== [ 12.520353] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.521030] Read of size 64 at addr ffff888102ad3f84 by task kunit_try_catch/199 [ 12.521875] [ 12.522034] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.522104] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.522116] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.522136] Call Trace: [ 12.522148] <TASK> [ 12.522161] dump_stack_lvl+0x73/0xb0 [ 12.522190] print_report+0xd1/0x610 [ 12.522210] ? __virt_addr_valid+0x1db/0x2d0 [ 12.522231] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.522254] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.522274] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.522297] kasan_report+0x141/0x180 [ 12.522317] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.522345] kasan_check_range+0x10c/0x1c0 [ 12.522368] __asan_memmove+0x27/0x70 [ 12.522386] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.522409] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.522435] ? __schedule+0x10cc/0x2b60 [ 12.522456] ? __pfx_read_tsc+0x10/0x10 [ 12.522476] ? ktime_get_ts64+0x86/0x230 [ 12.522502] kunit_try_run_case+0x1a5/0x480 [ 12.522524] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.522545] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.522568] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.522590] ? __kthread_parkme+0x82/0x180 [ 12.522608] ? preempt_count_sub+0x50/0x80 [ 12.522631] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.522653] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.522675] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.522717] kthread+0x337/0x6f0 [ 12.522736] ? trace_preempt_on+0x20/0xc0 [ 12.522757] ? __pfx_kthread+0x10/0x10 [ 12.522776] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.522796] ? calculate_sigpending+0x7b/0xa0 [ 12.522817] ? __pfx_kthread+0x10/0x10 [ 12.522837] ret_from_fork+0x116/0x1d0 [ 12.522854] ? __pfx_kthread+0x10/0x10 [ 12.522873] ret_from_fork_asm+0x1a/0x30 [ 12.522902] </TASK> [ 12.522922] [ 12.532477] Allocated by task 199: [ 12.532681] kasan_save_stack+0x45/0x70 [ 12.532868] kasan_save_track+0x18/0x40 [ 12.533051] kasan_save_alloc_info+0x3b/0x50 [ 12.533198] __kasan_kmalloc+0xb7/0xc0 [ 12.533330] __kmalloc_cache_noprof+0x189/0x420 [ 12.533626] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.533999] kunit_try_run_case+0x1a5/0x480 [ 12.534250] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.534637] kthread+0x337/0x6f0 [ 12.534758] ret_from_fork+0x116/0x1d0 [ 12.534890] ret_from_fork_asm+0x1a/0x30 [ 12.535245] [ 12.535373] The buggy address belongs to the object at ffff888102ad3f80 [ 12.535373] which belongs to the cache kmalloc-64 of size 64 [ 12.536287] The buggy address is located 4 bytes inside of [ 12.536287] allocated 64-byte region [ffff888102ad3f80, ffff888102ad3fc0) [ 12.536979] [ 12.537203] The buggy address belongs to the physical page: [ 12.537563] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad3 [ 12.537959] flags: 0x200000000000000(node=0|zone=2) [ 12.538151] page_type: f5(slab) [ 12.538272] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.538798] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.539229] page dumped because: kasan: bad access detected [ 12.539403] [ 12.539471] Memory state around the buggy address: [ 12.539681] ffff888102ad3e80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.540081] ffff888102ad3f00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.540771] >ffff888102ad3f80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.541045] ^ [ 12.541329] ffff888102ad4000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.541582] ffff888102ad4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.542172] ==================================================================