Date
July 5, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.434624] ================================================================== [ 20.434684] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 20.434739] Read of size 1 at addr fff00000c78cc498 by task kunit_try_catch/257 [ 20.434791] [ 20.434823] CPU: 0 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.434906] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.434935] Hardware name: linux,dummy-virt (DT) [ 20.434968] Call trace: [ 20.434998] show_stack+0x20/0x38 (C) [ 20.435050] dump_stack_lvl+0x8c/0xd0 [ 20.435099] print_report+0x118/0x608 [ 20.435148] kasan_report+0xdc/0x128 [ 20.435208] __asan_report_load1_noabort+0x20/0x30 [ 20.435261] memcmp+0x198/0x1d8 [ 20.435305] kasan_memcmp+0x16c/0x300 [ 20.435349] kunit_try_run_case+0x170/0x3f0 [ 20.435414] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.435472] kthread+0x328/0x630 [ 20.435563] ret_from_fork+0x10/0x20 [ 20.435615] [ 20.435637] Allocated by task 257: [ 20.435703] kasan_save_stack+0x3c/0x68 [ 20.435748] kasan_save_track+0x20/0x40 [ 20.435788] kasan_save_alloc_info+0x40/0x58 [ 20.435837] __kasan_kmalloc+0xd4/0xd8 [ 20.435952] __kmalloc_cache_noprof+0x16c/0x3c0 [ 20.436031] kasan_memcmp+0xbc/0x300 [ 20.436067] kunit_try_run_case+0x170/0x3f0 [ 20.436230] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.436298] kthread+0x328/0x630 [ 20.436339] ret_from_fork+0x10/0x20 [ 20.436376] [ 20.436423] The buggy address belongs to the object at fff00000c78cc480 [ 20.436423] which belongs to the cache kmalloc-32 of size 32 [ 20.436483] The buggy address is located 0 bytes to the right of [ 20.436483] allocated 24-byte region [fff00000c78cc480, fff00000c78cc498) [ 20.436585] [ 20.436608] The buggy address belongs to the physical page: [ 20.436643] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078cc [ 20.436698] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.436821] page_type: f5(slab) [ 20.436899] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 20.437009] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.437102] page dumped because: kasan: bad access detected [ 20.437271] [ 20.437336] Memory state around the buggy address: [ 20.437376] fff00000c78cc380: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 20.437556] fff00000c78cc400: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.437632] >fff00000c78cc480: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.437711] ^ [ 20.437744] fff00000c78cc500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.437885] fff00000c78cc580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.437943] ==================================================================
[ 15.677994] ================================================================== [ 15.678596] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 15.678873] Read of size 1 at addr ffff888102a0d658 by task kunit_try_catch/275 [ 15.679266] [ 15.679374] CPU: 1 UID: 0 PID: 275 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 15.679428] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.679444] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.679470] Call Trace: [ 15.679487] <TASK> [ 15.679525] dump_stack_lvl+0x73/0xb0 [ 15.679560] print_report+0xd1/0x650 [ 15.679592] ? __virt_addr_valid+0x1db/0x2d0 [ 15.679621] ? memcmp+0x1b4/0x1d0 [ 15.679642] ? kasan_complete_mode_report_info+0x2a/0x200 [ 15.679667] ? memcmp+0x1b4/0x1d0 [ 15.679689] kasan_report+0x141/0x180 [ 15.679714] ? memcmp+0x1b4/0x1d0 [ 15.679740] __asan_report_load1_noabort+0x18/0x20 [ 15.679768] memcmp+0x1b4/0x1d0 [ 15.679802] kasan_memcmp+0x18f/0x390 [ 15.679828] ? trace_hardirqs_on+0x37/0xe0 [ 15.679855] ? __pfx_kasan_memcmp+0x10/0x10 [ 15.679878] ? finish_task_switch.isra.0+0x153/0x700 [ 15.679905] ? __switch_to+0x47/0xf50 [ 15.679938] ? __pfx_read_tsc+0x10/0x10 [ 15.679964] ? ktime_get_ts64+0x86/0x230 [ 15.679992] kunit_try_run_case+0x1a5/0x480 [ 15.680023] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.680048] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.680076] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.680102] ? __kthread_parkme+0x82/0x180 [ 15.680127] ? preempt_count_sub+0x50/0x80 [ 15.680163] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.680191] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.680217] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.680244] kthread+0x337/0x6f0 [ 15.680267] ? trace_preempt_on+0x20/0xc0 [ 15.680292] ? __pfx_kthread+0x10/0x10 [ 15.680315] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.680340] ? calculate_sigpending+0x7b/0xa0 [ 15.680368] ? __pfx_kthread+0x10/0x10 [ 15.680392] ret_from_fork+0x116/0x1d0 [ 15.680414] ? __pfx_kthread+0x10/0x10 [ 15.680437] ret_from_fork_asm+0x1a/0x30 [ 15.680474] </TASK> [ 15.680489] [ 15.691711] Allocated by task 275: [ 15.691935] kasan_save_stack+0x45/0x70 [ 15.692126] kasan_save_track+0x18/0x40 [ 15.692428] kasan_save_alloc_info+0x3b/0x50 [ 15.692649] __kasan_kmalloc+0xb7/0xc0 [ 15.692814] __kmalloc_cache_noprof+0x189/0x420 [ 15.693045] kasan_memcmp+0xb7/0x390 [ 15.693392] kunit_try_run_case+0x1a5/0x480 [ 15.693648] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.693971] kthread+0x337/0x6f0 [ 15.694160] ret_from_fork+0x116/0x1d0 [ 15.694536] ret_from_fork_asm+0x1a/0x30 [ 15.694705] [ 15.694803] The buggy address belongs to the object at ffff888102a0d640 [ 15.694803] which belongs to the cache kmalloc-32 of size 32 [ 15.695388] The buggy address is located 0 bytes to the right of [ 15.695388] allocated 24-byte region [ffff888102a0d640, ffff888102a0d658) [ 15.696376] [ 15.696518] The buggy address belongs to the physical page: [ 15.696732] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a0d [ 15.697031] flags: 0x200000000000000(node=0|zone=2) [ 15.697824] page_type: f5(slab) [ 15.698130] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 15.698834] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 15.699695] page dumped because: kasan: bad access detected [ 15.700001] [ 15.700351] Memory state around the buggy address: [ 15.700681] ffff888102a0d500: 00 00 07 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 15.701219] ffff888102a0d580: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 15.702030] >ffff888102a0d600: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 15.702909] ^ [ 15.703602] ffff888102a0d680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.703987] ffff888102a0d700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.704869] ==================================================================