Date
July 18, 2025, 1:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.246536] ================================================================== [ 31.246615] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 31.246667] Read of size 1 at addr fff00000c907e03f by task kunit_try_catch/169 [ 31.246714] [ 31.246867] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT [ 31.246985] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.247025] Hardware name: linux,dummy-virt (DT) [ 31.247174] Call trace: [ 31.247249] show_stack+0x20/0x38 (C) [ 31.247316] dump_stack_lvl+0x8c/0xd0 [ 31.247362] print_report+0x118/0x5e8 [ 31.247404] kasan_report+0xdc/0x128 [ 31.247477] __asan_report_load1_noabort+0x20/0x30 [ 31.247525] kmalloc_oob_left+0x2ec/0x320 [ 31.247569] kunit_try_run_case+0x170/0x3f0 [ 31.247625] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.247783] kthread+0x328/0x630 [ 31.247850] ret_from_fork+0x10/0x20 [ 31.247898] [ 31.247916] Allocated by task 110: [ 31.248004] kasan_save_stack+0x3c/0x68 [ 31.248105] kasan_save_track+0x20/0x40 [ 31.248198] kasan_save_alloc_info+0x40/0x58 [ 31.248256] __kasan_kmalloc+0xd4/0xd8 [ 31.248336] __kmalloc_noprof+0x198/0x4c8 [ 31.248457] kunit_kmalloc_array+0x34/0x88 [ 31.248528] test_readerwriter+0x3b0/0x948 [ 31.248568] kunit_try_run_case+0x170/0x3f0 [ 31.248609] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.248670] kthread+0x328/0x630 [ 31.248701] ret_from_fork+0x10/0x20 [ 31.248735] [ 31.248753] The buggy address belongs to the object at fff00000c907e020 [ 31.248753] which belongs to the cache kmalloc-16 of size 16 [ 31.248806] The buggy address is located 15 bytes to the right of [ 31.248806] allocated 16-byte region [fff00000c907e020, fff00000c907e030) [ 31.248866] [ 31.248884] The buggy address belongs to the physical page: [ 31.248913] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xfff00000c907e020 pfn:0x10907e [ 31.248968] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.249016] page_type: f5(slab) [ 31.249053] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 31.249133] raw: fff00000c907e020 000000008080007f 00000000f5000000 0000000000000000 [ 31.249172] page dumped because: kasan: bad access detected [ 31.249228] [ 31.249269] Memory state around the buggy address: [ 31.249362] fff00000c907df00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.249489] fff00000c907df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.249563] >fff00000c907e000: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 31.249657] ^ [ 31.249746] fff00000c907e080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.249798] fff00000c907e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.249833] ==================================================================
[ 24.100759] ================================================================== [ 24.101600] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 24.101857] Read of size 1 at addr ffff888102abfb3f by task kunit_try_catch/186 [ 24.102146] [ 24.102276] CPU: 1 UID: 0 PID: 186 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250718 #1 PREEMPT(voluntary) [ 24.102329] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.102341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.102363] Call Trace: [ 24.102376] <TASK> [ 24.102396] dump_stack_lvl+0x73/0xb0 [ 24.102438] print_report+0xd1/0x640 [ 24.102460] ? __virt_addr_valid+0x1db/0x2d0 [ 24.102485] ? kmalloc_oob_left+0x361/0x3c0 [ 24.102504] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.102529] ? kmalloc_oob_left+0x361/0x3c0 [ 24.102549] kasan_report+0x141/0x180 [ 24.102570] ? kmalloc_oob_left+0x361/0x3c0 [ 24.102595] __asan_report_load1_noabort+0x18/0x20 [ 24.102625] kmalloc_oob_left+0x361/0x3c0 [ 24.102646] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 24.102666] ? __schedule+0x10da/0x2b60 [ 24.102690] ? __pfx_read_tsc+0x10/0x10 [ 24.102711] ? ktime_get_ts64+0x86/0x230 [ 24.102736] kunit_try_run_case+0x1a5/0x480 [ 24.102760] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.102781] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.102828] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.102851] ? __kthread_parkme+0x82/0x180 [ 24.102872] ? preempt_count_sub+0x50/0x80 [ 24.102895] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.102936] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.102959] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.102982] kthread+0x337/0x6f0 [ 24.103001] ? trace_preempt_on+0x20/0xc0 [ 24.103024] ? __pfx_kthread+0x10/0x10 [ 24.103043] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.103064] ? calculate_sigpending+0x7b/0xa0 [ 24.103088] ? __pfx_kthread+0x10/0x10 [ 24.103108] ret_from_fork+0x116/0x1d0 [ 24.103126] ? __pfx_kthread+0x10/0x10 [ 24.103145] ret_from_fork_asm+0x1a/0x30 [ 24.103187] </TASK> [ 24.103198] [ 24.118469] Allocated by task 21: [ 24.118618] kasan_save_stack+0x45/0x70 [ 24.118766] kasan_save_track+0x18/0x40 [ 24.119537] kasan_save_alloc_info+0x3b/0x50 [ 24.120111] __kasan_kmalloc+0xb7/0xc0 [ 24.121277] __kmalloc_cache_node_noprof+0x188/0x420 [ 24.122222] build_sched_domains+0x38c/0x5d80 [ 24.122837] partition_sched_domains+0x471/0x9c0 [ 24.123113] rebuild_sched_domains_locked+0x97d/0xd50 [ 24.123340] cpuset_update_active_cpus+0x80f/0x1a90 [ 24.123556] sched_cpu_activate+0x2bf/0x330 [ 24.123703] cpuhp_invoke_callback+0x2a1/0xf00 [ 24.123860] cpuhp_thread_fun+0x2ce/0x5c0 [ 24.123994] smpboot_thread_fn+0x2bc/0x730 [ 24.124134] kthread+0x337/0x6f0 [ 24.124259] ret_from_fork+0x116/0x1d0 [ 24.124439] ret_from_fork_asm+0x1a/0x30 [ 24.124633] [ 24.124758] Freed by task 21: [ 24.124900] kasan_save_stack+0x45/0x70 [ 24.125091] kasan_save_track+0x18/0x40 [ 24.125473] kasan_save_free_info+0x3f/0x60 [ 24.125926] __kasan_slab_free+0x56/0x70 [ 24.126276] kfree+0x222/0x3f0 [ 24.127019] build_sched_domains+0x2072/0x5d80 [ 24.127436] partition_sched_domains+0x471/0x9c0 [ 24.128039] rebuild_sched_domains_locked+0x97d/0xd50 [ 24.128449] cpuset_update_active_cpus+0x80f/0x1a90 [ 24.128960] sched_cpu_activate+0x2bf/0x330 [ 24.129357] cpuhp_invoke_callback+0x2a1/0xf00 [ 24.129766] cpuhp_thread_fun+0x2ce/0x5c0 [ 24.130211] smpboot_thread_fn+0x2bc/0x730 [ 24.130593] kthread+0x337/0x6f0 [ 24.130964] ret_from_fork+0x116/0x1d0 [ 24.131324] ret_from_fork_asm+0x1a/0x30 [ 24.131709] [ 24.131960] The buggy address belongs to the object at ffff888102abfb20 [ 24.131960] which belongs to the cache kmalloc-16 of size 16 [ 24.133195] The buggy address is located 15 bytes to the right of [ 24.133195] allocated 16-byte region [ffff888102abfb20, ffff888102abfb30) [ 24.133919] [ 24.134097] The buggy address belongs to the physical page: [ 24.134598] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102abf [ 24.135053] flags: 0x200000000000000(node=0|zone=2) [ 24.135395] page_type: f5(slab) [ 24.135725] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 24.136450] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 24.136925] page dumped because: kasan: bad access detected [ 24.137329] [ 24.137394] Memory state around the buggy address: [ 24.137544] ffff888102abfa00: 00 06 fc fc 00 06 fc fc 00 06 fc fc fa fb fc fc [ 24.137752] ffff888102abfa80: 00 00 fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 24.138561] >ffff888102abfb00: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 24.139255] ^ [ 24.139710] ffff888102abfb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.140216] ffff888102abfc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.140677] ==================================================================