Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.606624] ================================================================== [ 31.606696] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 31.607129] Read of size 1 at addr fff00000c9c23858 by task kunit_try_catch/289 [ 31.607240] [ 31.607298] CPU: 1 UID: 0 PID: 289 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 31.607547] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.607593] Hardware name: linux,dummy-virt (DT) [ 31.607632] Call trace: [ 31.607932] show_stack+0x20/0x38 (C) [ 31.608165] dump_stack_lvl+0x8c/0xd0 [ 31.608341] print_report+0x118/0x5d0 [ 31.608580] kasan_report+0xdc/0x128 [ 31.608906] __asan_report_load1_noabort+0x20/0x30 [ 31.609020] memcmp+0x198/0x1d8 [ 31.609250] kasan_memcmp+0x16c/0x300 [ 31.609475] kunit_try_run_case+0x170/0x3f0 [ 31.609576] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.609637] kthread+0x328/0x630 [ 31.610028] ret_from_fork+0x10/0x20 [ 31.610224] [ 31.610466] Allocated by task 289: [ 31.610662] kasan_save_stack+0x3c/0x68 [ 31.610808] kasan_save_track+0x20/0x40 [ 31.610849] kasan_save_alloc_info+0x40/0x58 [ 31.610896] __kasan_kmalloc+0xd4/0xd8 [ 31.610937] __kmalloc_cache_noprof+0x16c/0x3c0 [ 31.611029] kasan_memcmp+0xbc/0x300 [ 31.611086] kunit_try_run_case+0x170/0x3f0 [ 31.611139] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.611195] kthread+0x328/0x630 [ 31.611240] ret_from_fork+0x10/0x20 [ 31.611286] [ 31.611308] The buggy address belongs to the object at fff00000c9c23840 [ 31.611308] which belongs to the cache kmalloc-32 of size 32 [ 31.611382] The buggy address is located 0 bytes to the right of [ 31.611382] allocated 24-byte region [fff00000c9c23840, fff00000c9c23858) [ 31.611450] [ 31.611475] The buggy address belongs to the physical page: [ 31.611509] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c23 [ 31.611575] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.612042] page_type: f5(slab) [ 31.612300] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 31.612385] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 31.612616] page dumped because: kasan: bad access detected [ 31.612822] [ 31.612890] Memory state around the buggy address: [ 31.612926] fff00000c9c23700: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.613375] fff00000c9c23780: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 31.613451] >fff00000c9c23800: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 31.613796] ^ [ 31.613870] fff00000c9c23880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.614206] fff00000c9c23900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.614543] ==================================================================
[ 25.999676] ================================================================== [ 26.001545] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 26.002243] Read of size 1 at addr ffff8881058d4918 by task kunit_try_catch/307 [ 26.002481] [ 26.002574] CPU: 0 UID: 0 PID: 307 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 26.002631] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 26.002646] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.002679] Call Trace: [ 26.002706] <TASK> [ 26.002729] dump_stack_lvl+0x73/0xb0 [ 26.002791] print_report+0xd1/0x610 [ 26.002820] ? __virt_addr_valid+0x1db/0x2d0 [ 26.002847] ? memcmp+0x1b4/0x1d0 [ 26.003004] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.003039] ? memcmp+0x1b4/0x1d0 [ 26.003073] kasan_report+0x141/0x180 [ 26.003096] ? memcmp+0x1b4/0x1d0 [ 26.003121] __asan_report_load1_noabort+0x18/0x20 [ 26.003145] memcmp+0x1b4/0x1d0 [ 26.003165] kasan_memcmp+0x18f/0x390 [ 26.003186] ? trace_hardirqs_on+0x37/0xe0 [ 26.003211] ? __pfx_kasan_memcmp+0x10/0x10 [ 26.003230] ? finish_task_switch.isra.0+0x153/0x700 [ 26.003255] ? __switch_to+0x47/0xf80 [ 26.003284] ? __pfx_read_tsc+0x10/0x10 [ 26.003343] ? ktime_get_ts64+0x86/0x230 [ 26.003403] kunit_try_run_case+0x1a5/0x480 [ 26.003427] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.003448] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.003473] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.003497] ? __kthread_parkme+0x82/0x180 [ 26.003520] ? preempt_count_sub+0x50/0x80 [ 26.003542] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.003566] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.003590] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.003616] kthread+0x337/0x6f0 [ 26.003635] ? trace_preempt_on+0x20/0xc0 [ 26.003657] ? __pfx_kthread+0x10/0x10 [ 26.003677] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.003711] ? calculate_sigpending+0x7b/0xa0 [ 26.003736] ? __pfx_kthread+0x10/0x10 [ 26.003759] ret_from_fork+0x116/0x1d0 [ 26.003797] ? __pfx_kthread+0x10/0x10 [ 26.003823] ret_from_fork_asm+0x1a/0x30 [ 26.003853] </TASK> [ 26.003866] [ 26.018510] Allocated by task 307: [ 26.018961] kasan_save_stack+0x45/0x70 [ 26.019372] kasan_save_track+0x18/0x40 [ 26.019513] kasan_save_alloc_info+0x3b/0x50 [ 26.019659] __kasan_kmalloc+0xb7/0xc0 [ 26.020095] __kmalloc_cache_noprof+0x189/0x420 [ 26.020519] kasan_memcmp+0xb7/0x390 [ 26.021049] kunit_try_run_case+0x1a5/0x480 [ 26.021374] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.021542] kthread+0x337/0x6f0 [ 26.021656] ret_from_fork+0x116/0x1d0 [ 26.021791] ret_from_fork_asm+0x1a/0x30 [ 26.022033] [ 26.022211] The buggy address belongs to the object at ffff8881058d4900 [ 26.022211] which belongs to the cache kmalloc-32 of size 32 [ 26.023335] The buggy address is located 0 bytes to the right of [ 26.023335] allocated 24-byte region [ffff8881058d4900, ffff8881058d4918) [ 26.024515] [ 26.024591] The buggy address belongs to the physical page: [ 26.024793] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058d4 [ 26.025541] flags: 0x200000000000000(node=0|zone=2) [ 26.026048] page_type: f5(slab) [ 26.026210] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 26.026649] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 26.027384] page dumped because: kasan: bad access detected [ 26.027712] [ 26.027848] Memory state around the buggy address: [ 26.028333] ffff8881058d4800: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 26.028800] ffff8881058d4880: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 26.029079] >ffff8881058d4900: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.029286] ^ [ 26.029416] ffff8881058d4980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.029620] ffff8881058d4a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.030602] ==================================================================