Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.591555] ================================================================== [ 24.591751] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 24.592291] Read of size 1 at addr fff00000c73a8458 by task kunit_try_catch/259 [ 24.592475] [ 24.592648] CPU: 0 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 24.592967] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.593068] Hardware name: linux,dummy-virt (DT) [ 24.593171] Call trace: [ 24.593223] show_stack+0x20/0x38 (C) [ 24.593359] dump_stack_lvl+0x8c/0xd0 [ 24.593473] print_report+0x118/0x608 [ 24.593938] kasan_report+0xdc/0x128 [ 24.594061] __asan_report_load1_noabort+0x20/0x30 [ 24.594186] memcmp+0x198/0x1d8 [ 24.594580] kasan_memcmp+0x16c/0x300 [ 24.594902] kunit_try_run_case+0x170/0x3f0 [ 24.595010] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.595112] kthread+0x328/0x630 [ 24.595647] ret_from_fork+0x10/0x20 [ 24.596005] [ 24.596092] Allocated by task 259: [ 24.596248] kasan_save_stack+0x3c/0x68 [ 24.596380] kasan_save_track+0x20/0x40 [ 24.596494] kasan_save_alloc_info+0x40/0x58 [ 24.596685] __kasan_kmalloc+0xd4/0xd8 [ 24.596799] __kmalloc_cache_noprof+0x16c/0x3c0 [ 24.596903] kasan_memcmp+0xbc/0x300 [ 24.596995] kunit_try_run_case+0x170/0x3f0 [ 24.597104] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.597214] kthread+0x328/0x630 [ 24.597595] ret_from_fork+0x10/0x20 [ 24.597875] [ 24.597928] The buggy address belongs to the object at fff00000c73a8440 [ 24.597928] which belongs to the cache kmalloc-32 of size 32 [ 24.598081] The buggy address is located 0 bytes to the right of [ 24.598081] allocated 24-byte region [fff00000c73a8440, fff00000c73a8458) [ 24.598217] [ 24.598256] The buggy address belongs to the physical page: [ 24.598617] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1073a8 [ 24.598788] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.598922] page_type: f5(slab) [ 24.599564] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 24.599767] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 24.599893] page dumped because: kasan: bad access detected [ 24.599976] [ 24.600017] Memory state around the buggy address: [ 24.600148] fff00000c73a8300: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 24.600267] fff00000c73a8380: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 24.600379] >fff00000c73a8400: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 24.600482] ^ [ 24.600583] fff00000c73a8480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.600690] fff00000c73a8500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.600802] ==================================================================
[ 22.296759] ================================================================== [ 22.297904] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 22.298698] Read of size 1 at addr ffff8881030b3dd8 by task kunit_try_catch/277 [ 22.300040] [ 22.300689] CPU: 0 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 22.300829] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.300872] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.300910] Call Trace: [ 22.300931] <TASK> [ 22.300956] dump_stack_lvl+0x73/0xb0 [ 22.300998] print_report+0xd1/0x650 [ 22.301345] ? __virt_addr_valid+0x1db/0x2d0 [ 22.301432] ? memcmp+0x1b4/0x1d0 [ 22.301501] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.301559] ? memcmp+0x1b4/0x1d0 [ 22.301591] kasan_report+0x141/0x180 [ 22.301628] ? memcmp+0x1b4/0x1d0 [ 22.301661] __asan_report_load1_noabort+0x18/0x20 [ 22.301693] memcmp+0x1b4/0x1d0 [ 22.301723] kasan_memcmp+0x18f/0x390 [ 22.301756] ? trace_hardirqs_on+0x37/0xe0 [ 22.301794] ? __pfx_kasan_memcmp+0x10/0x10 [ 22.301823] ? finish_task_switch.isra.0+0x153/0x700 [ 22.301858] ? __switch_to+0x5d9/0xf60 [ 22.301887] ? dequeue_task_fair+0x166/0x4e0 [ 22.301925] ? __pfx_read_tsc+0x10/0x10 [ 22.301955] ? ktime_get_ts64+0x86/0x230 [ 22.301993] kunit_try_run_case+0x1a5/0x480 [ 22.302049] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.302120] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.302160] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.302196] ? __kthread_parkme+0x82/0x180 [ 22.302229] ? preempt_count_sub+0x50/0x80 [ 22.302265] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.302323] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.302364] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.302399] kthread+0x337/0x6f0 [ 22.302422] ? trace_preempt_on+0x20/0xc0 [ 22.302455] ? __pfx_kthread+0x10/0x10 [ 22.302480] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.302512] ? calculate_sigpending+0x7b/0xa0 [ 22.302546] ? __pfx_kthread+0x10/0x10 [ 22.302570] ret_from_fork+0x41/0x80 [ 22.302602] ? __pfx_kthread+0x10/0x10 [ 22.302626] ret_from_fork_asm+0x1a/0x30 [ 22.302671] </TASK> [ 22.302686] [ 22.323032] Allocated by task 277: [ 22.323849] kasan_save_stack+0x45/0x70 [ 22.324488] kasan_save_track+0x18/0x40 [ 22.324904] kasan_save_alloc_info+0x3b/0x50 [ 22.325588] __kasan_kmalloc+0xb7/0xc0 [ 22.325939] __kmalloc_cache_noprof+0x189/0x420 [ 22.326707] kasan_memcmp+0xb7/0x390 [ 22.326978] kunit_try_run_case+0x1a5/0x480 [ 22.327622] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.328447] kthread+0x337/0x6f0 [ 22.328751] ret_from_fork+0x41/0x80 [ 22.329270] ret_from_fork_asm+0x1a/0x30 [ 22.329714] [ 22.329928] The buggy address belongs to the object at ffff8881030b3dc0 [ 22.329928] which belongs to the cache kmalloc-32 of size 32 [ 22.331234] The buggy address is located 0 bytes to the right of [ 22.331234] allocated 24-byte region [ffff8881030b3dc0, ffff8881030b3dd8) [ 22.332670] [ 22.332857] The buggy address belongs to the physical page: [ 22.333577] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1030b3 [ 22.334105] flags: 0x200000000000000(node=0|zone=2) [ 22.334889] page_type: f5(slab) [ 22.335272] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 22.336119] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 22.336755] page dumped because: kasan: bad access detected [ 22.337141] [ 22.337781] Memory state around the buggy address: [ 22.338388] ffff8881030b3c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 22.338997] ffff8881030b3d00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.339592] >ffff8881030b3d80: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.340048] ^ [ 22.341246] ffff8881030b3e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.341809] ffff8881030b3e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.342933] ==================================================================