Date
June 2, 2025, 2:11 p.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-x86_64 |
[ 37.755338] ================================================================== [ 37.765537] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 37.771522] Read of size 1 at addr ffff0008064dea98 by task kunit_try_catch/304 [ 37.778813] [ 37.780301] CPU: 4 UID: 0 PID: 304 Comm: kunit_try_catch Tainted: G B N 6.15.1-rc1 #1 PREEMPT [ 37.780357] Tainted: [B]=BAD_PAGE, [N]=TEST [ 37.780376] Hardware name: WinLink E850-96 board (DT) [ 37.780399] Call trace: [ 37.780414] show_stack+0x20/0x38 (C) [ 37.780450] dump_stack_lvl+0x8c/0xd0 [ 37.780488] print_report+0x118/0x608 [ 37.780524] kasan_report+0xdc/0x128 [ 37.780553] __asan_report_load1_noabort+0x20/0x30 [ 37.780591] memcmp+0x198/0x1d8 [ 37.780618] kasan_memcmp+0x16c/0x300 [ 37.780651] kunit_try_run_case+0x170/0x3f0 [ 37.780690] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.780731] kthread+0x328/0x630 [ 37.780764] ret_from_fork+0x10/0x20 [ 37.780802] [ 37.845741] Allocated by task 304: [ 37.849129] kasan_save_stack+0x3c/0x68 [ 37.852944] kasan_save_track+0x20/0x40 [ 37.856764] kasan_save_alloc_info+0x40/0x58 [ 37.861017] __kasan_kmalloc+0xd4/0xd8 [ 37.864750] __kmalloc_cache_noprof+0x16c/0x3c0 [ 37.869263] kasan_memcmp+0xbc/0x300 [ 37.872823] kunit_try_run_case+0x170/0x3f0 [ 37.876989] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.882459] kthread+0x328/0x630 [ 37.885670] ret_from_fork+0x10/0x20 [ 37.889228] [ 37.890706] The buggy address belongs to the object at ffff0008064dea80 [ 37.890706] which belongs to the cache kmalloc-32 of size 32 [ 37.903033] The buggy address is located 0 bytes to the right of [ 37.903033] allocated 24-byte region [ffff0008064dea80, ffff0008064dea98) [ 37.915877] [ 37.917357] The buggy address belongs to the physical page: [ 37.922913] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8864de [ 37.930898] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 37.937407] page_type: f5(slab) [ 37.940545] raw: 0bfffe0000000000 ffff000800002780 dead000000000122 0000000000000000 [ 37.948262] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 37.955981] page dumped because: kasan: bad access detected [ 37.961536] [ 37.963013] Memory state around the buggy address: [ 37.967795] ffff0008064de980: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 37.974996] ffff0008064dea00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 37.982199] >ffff0008064dea80: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 37.989401] ^ [ 37.993397] ffff0008064deb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.000602] ffff0008064deb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 38.007804] ==================================================================
[ 18.929026] ================================================================== [ 18.929642] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 18.930204] Read of size 1 at addr ffff888101e06418 by task kunit_try_catch/278 [ 18.930761] [ 18.931878] CPU: 1 UID: 0 PID: 278 Comm: kunit_try_catch Tainted: G B N 6.15.1-rc1 #1 PREEMPT(voluntary) [ 18.932037] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.932071] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.932118] Call Trace: [ 18.932146] <TASK> [ 18.932175] dump_stack_lvl+0x73/0xb0 [ 18.932268] print_report+0xd1/0x650 [ 18.932319] ? __virt_addr_valid+0x1db/0x2d0 [ 18.932361] ? memcmp+0x1b4/0x1d0 [ 18.932383] ? kasan_complete_mode_report_info+0x2a/0x200 [ 18.932409] ? memcmp+0x1b4/0x1d0 [ 18.932429] kasan_report+0x141/0x180 [ 18.932454] ? memcmp+0x1b4/0x1d0 [ 18.932479] __asan_report_load1_noabort+0x18/0x20 [ 18.932503] memcmp+0x1b4/0x1d0 [ 18.932525] kasan_memcmp+0x18f/0x390 [ 18.932548] ? trace_hardirqs_on+0x37/0xe0 [ 18.932576] ? __pfx_kasan_memcmp+0x10/0x10 [ 18.932598] ? finish_task_switch.isra.0+0x153/0x700 [ 18.932626] ? __switch_to+0x5d9/0xf60 [ 18.932649] ? dequeue_task_fair+0x166/0x4e0 [ 18.932679] ? __pfx_read_tsc+0x10/0x10 [ 18.932702] ? ktime_get_ts64+0x86/0x230 [ 18.932731] kunit_try_run_case+0x1a5/0x480 [ 18.932799] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.932828] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.932855] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.932881] ? __kthread_parkme+0x82/0x180 [ 18.932906] ? preempt_count_sub+0x50/0x80 [ 18.932933] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.932957] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.932982] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.933007] kthread+0x337/0x6f0 [ 18.933026] ? trace_preempt_on+0x20/0xc0 [ 18.933051] ? __pfx_kthread+0x10/0x10 [ 18.933070] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.933093] ? calculate_sigpending+0x7b/0xa0 [ 18.933145] ? __pfx_kthread+0x10/0x10 [ 18.933167] ret_from_fork+0x41/0x80 [ 18.933199] ? __pfx_kthread+0x10/0x10 [ 18.933250] ret_from_fork_asm+0x1a/0x30 [ 18.933304] </TASK> [ 18.933327] [ 18.947191] Allocated by task 278: [ 18.947598] kasan_save_stack+0x45/0x70 [ 18.948957] kasan_save_track+0x18/0x40 [ 18.949655] kasan_save_alloc_info+0x3b/0x50 [ 18.950072] __kasan_kmalloc+0xb7/0xc0 [ 18.950617] __kmalloc_cache_noprof+0x189/0x420 [ 18.951049] kasan_memcmp+0xb7/0x390 [ 18.951533] kunit_try_run_case+0x1a5/0x480 [ 18.951948] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.953046] kthread+0x337/0x6f0 [ 18.953375] ret_from_fork+0x41/0x80 [ 18.954004] ret_from_fork_asm+0x1a/0x30 [ 18.954600] [ 18.954818] The buggy address belongs to the object at ffff888101e06400 [ 18.954818] which belongs to the cache kmalloc-32 of size 32 [ 18.955693] The buggy address is located 0 bytes to the right of [ 18.955693] allocated 24-byte region [ffff888101e06400, ffff888101e06418) [ 18.956734] [ 18.956865] The buggy address belongs to the physical page: [ 18.957073] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101e06 [ 18.958267] flags: 0x200000000000000(node=0|zone=2) [ 18.958503] page_type: f5(slab) [ 18.958812] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 18.959444] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 18.959776] page dumped because: kasan: bad access detected [ 18.960011] [ 18.960170] Memory state around the buggy address: [ 18.960682] ffff888101e06300: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 18.962197] ffff888101e06380: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 18.962744] >ffff888101e06400: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.963114] ^ [ 18.963488] ffff888101e06480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.964844] ffff888101e06500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.965266] ==================================================================