Date
July 12, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.721047] ================================================================== [ 18.721474] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 18.721543] Read of size 1 at addr fff00000c66feb18 by task kunit_try_catch/257 [ 18.721595] [ 18.721631] CPU: 1 UID: 0 PID: 257 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.721728] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.721756] Hardware name: linux,dummy-virt (DT) [ 18.721790] Call trace: [ 18.721813] show_stack+0x20/0x38 (C) [ 18.721866] dump_stack_lvl+0x8c/0xd0 [ 18.721957] print_report+0x118/0x5d0 [ 18.722045] kasan_report+0xdc/0x128 [ 18.722094] __asan_report_load1_noabort+0x20/0x30 [ 18.722386] memcmp+0x198/0x1d8 [ 18.722476] kasan_memcmp+0x16c/0x300 [ 18.722527] kunit_try_run_case+0x170/0x3f0 [ 18.722580] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.722637] kthread+0x328/0x630 [ 18.722689] ret_from_fork+0x10/0x20 [ 18.722741] [ 18.722761] Allocated by task 257: [ 18.722851] kasan_save_stack+0x3c/0x68 [ 18.722902] kasan_save_track+0x20/0x40 [ 18.722943] kasan_save_alloc_info+0x40/0x58 [ 18.722985] __kasan_kmalloc+0xd4/0xd8 [ 18.723024] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.723098] kasan_memcmp+0xbc/0x300 [ 18.723277] kunit_try_run_case+0x170/0x3f0 [ 18.723529] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.723577] kthread+0x328/0x630 [ 18.723613] ret_from_fork+0x10/0x20 [ 18.723909] [ 18.723937] The buggy address belongs to the object at fff00000c66feb00 [ 18.723937] which belongs to the cache kmalloc-32 of size 32 [ 18.724378] The buggy address is located 0 bytes to the right of [ 18.724378] allocated 24-byte region [fff00000c66feb00, fff00000c66feb18) [ 18.724456] [ 18.724480] The buggy address belongs to the physical page: [ 18.724514] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066fe [ 18.725373] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.725949] page_type: f5(slab) [ 18.726204] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 18.726265] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 18.726310] page dumped because: kasan: bad access detected [ 18.726684] [ 18.726850] Memory state around the buggy address: [ 18.726885] fff00000c66fea00: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 18.727144] fff00000c66fea80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 18.727205] >fff00000c66feb00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.727693] ^ [ 18.727736] fff00000c66feb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.727833] fff00000c66fec00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.727875] ==================================================================
[ 14.901216] ================================================================== [ 14.901980] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.902446] Read of size 1 at addr ffff888102a085d8 by task kunit_try_catch/274 [ 14.902780] [ 14.902877] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.902920] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.902958] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.902980] Call Trace: [ 14.902991] <TASK> [ 14.903005] dump_stack_lvl+0x73/0xb0 [ 14.903033] print_report+0xd1/0x610 [ 14.903055] ? __virt_addr_valid+0x1db/0x2d0 [ 14.903078] ? memcmp+0x1b4/0x1d0 [ 14.903094] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.903119] ? memcmp+0x1b4/0x1d0 [ 14.903136] kasan_report+0x141/0x180 [ 14.903157] ? memcmp+0x1b4/0x1d0 [ 14.903180] __asan_report_load1_noabort+0x18/0x20 [ 14.903206] memcmp+0x1b4/0x1d0 [ 14.903225] kasan_memcmp+0x18f/0x390 [ 14.903245] ? trace_hardirqs_on+0x37/0xe0 [ 14.903279] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.903299] ? finish_task_switch.isra.0+0x153/0x700 [ 14.903323] ? __switch_to+0x47/0xf50 [ 14.903351] ? __pfx_read_tsc+0x10/0x10 [ 14.903373] ? ktime_get_ts64+0x86/0x230 [ 14.903719] kunit_try_run_case+0x1a5/0x480 [ 14.903749] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.903774] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.903797] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.903823] ? __kthread_parkme+0x82/0x180 [ 14.903845] ? preempt_count_sub+0x50/0x80 [ 14.903869] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.903894] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.903919] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.903946] kthread+0x337/0x6f0 [ 14.903965] ? trace_preempt_on+0x20/0xc0 [ 14.904053] ? __pfx_kthread+0x10/0x10 [ 14.904076] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.904099] ? calculate_sigpending+0x7b/0xa0 [ 14.904123] ? __pfx_kthread+0x10/0x10 [ 14.904145] ret_from_fork+0x116/0x1d0 [ 14.904164] ? __pfx_kthread+0x10/0x10 [ 14.904185] ret_from_fork_asm+0x1a/0x30 [ 14.904215] </TASK> [ 14.904225] [ 14.915625] Allocated by task 274: [ 14.915799] kasan_save_stack+0x45/0x70 [ 14.916339] kasan_save_track+0x18/0x40 [ 14.916509] kasan_save_alloc_info+0x3b/0x50 [ 14.916856] __kasan_kmalloc+0xb7/0xc0 [ 14.917063] __kmalloc_cache_noprof+0x189/0x420 [ 14.917628] kasan_memcmp+0xb7/0x390 [ 14.917897] kunit_try_run_case+0x1a5/0x480 [ 14.918258] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.918516] kthread+0x337/0x6f0 [ 14.918665] ret_from_fork+0x116/0x1d0 [ 14.918858] ret_from_fork_asm+0x1a/0x30 [ 14.919047] [ 14.919134] The buggy address belongs to the object at ffff888102a085c0 [ 14.919134] which belongs to the cache kmalloc-32 of size 32 [ 14.919641] The buggy address is located 0 bytes to the right of [ 14.919641] allocated 24-byte region [ffff888102a085c0, ffff888102a085d8) [ 14.920140] [ 14.920234] The buggy address belongs to the physical page: [ 14.921122] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a08 [ 14.921605] flags: 0x200000000000000(node=0|zone=2) [ 14.921914] page_type: f5(slab) [ 14.922234] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.922670] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.923153] page dumped because: kasan: bad access detected [ 14.923523] [ 14.923759] Memory state around the buggy address: [ 14.923973] ffff888102a08480: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.924389] ffff888102a08500: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 14.924705] >ffff888102a08580: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.925004] ^ [ 14.925423] ffff888102a08600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.925679] ffff888102a08680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.926051] ==================================================================