Date
July 16, 2025, 12:11 p.m.
Environment | |
---|---|
qemu-arm64 | |
qemu-x86_64 |
[ 30.301890] ================================================================== [ 30.301983] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 30.302120] Read of size 1 at addr fff00000c636023f by task kunit_try_catch/169 [ 30.302322] [ 30.302354] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 30.302442] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.302468] Hardware name: linux,dummy-virt (DT) [ 30.302517] Call trace: [ 30.302539] show_stack+0x20/0x38 (C) [ 30.302586] dump_stack_lvl+0x8c/0xd0 [ 30.303018] print_report+0x118/0x5d0 [ 30.303369] kasan_report+0xdc/0x128 [ 30.303419] __asan_report_load1_noabort+0x20/0x30 [ 30.303736] kmalloc_oob_left+0x2ec/0x320 [ 30.304122] kunit_try_run_case+0x170/0x3f0 [ 30.304211] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.304289] kthread+0x328/0x630 [ 30.304379] ret_from_fork+0x10/0x20 [ 30.304536] [ 30.304757] Allocated by task 108: [ 30.304941] kasan_save_stack+0x3c/0x68 [ 30.305011] kasan_save_track+0x20/0x40 [ 30.305077] kasan_save_alloc_info+0x40/0x58 [ 30.305114] __kasan_kmalloc+0xd4/0xd8 [ 30.305151] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 30.305400] kvasprintf+0xe0/0x180 [ 30.305471] kasprintf+0xd0/0x110 [ 30.305768] miscdev_test_can_open+0xac/0x2c8 [ 30.305921] miscdev_test_conflict_reverse+0x330/0x620 [ 30.305973] kunit_try_run_case+0x170/0x3f0 [ 30.306009] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.306052] kthread+0x328/0x630 [ 30.306263] ret_from_fork+0x10/0x20 [ 30.306298] [ 30.306334] Freed by task 108: [ 30.306379] kasan_save_stack+0x3c/0x68 [ 30.306416] kasan_save_track+0x20/0x40 [ 30.306875] kasan_save_free_info+0x4c/0x78 [ 30.306923] __kasan_slab_free+0x6c/0x98 [ 30.306988] kfree+0x214/0x3c8 [ 30.307043] miscdev_test_can_open+0x138/0x2c8 [ 30.307148] miscdev_test_conflict_reverse+0x330/0x620 [ 30.307188] kunit_try_run_case+0x170/0x3f0 [ 30.307225] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.307267] kthread+0x328/0x630 [ 30.307299] ret_from_fork+0x10/0x20 [ 30.307347] [ 30.307371] The buggy address belongs to the object at fff00000c6360220 [ 30.307371] which belongs to the cache kmalloc-16 of size 16 [ 30.307476] The buggy address is located 15 bytes to the right of [ 30.307476] allocated 16-byte region [fff00000c6360220, fff00000c6360230) [ 30.307852] [ 30.308221] The buggy address belongs to the physical page: [ 30.308256] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106360 [ 30.308309] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.308675] page_type: f5(slab) [ 30.308921] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 30.309030] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 30.309071] page dumped because: kasan: bad access detected [ 30.309102] [ 30.309120] Memory state around the buggy address: [ 30.309170] fff00000c6360100: fa fb fc fc 00 04 fc fc fa fb fc fc fa fb fc fc [ 30.309214] fff00000c6360180: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 30.309256] >fff00000c6360200: fa fb fc fc fa fb fc fc 00 07 fc fc fc fc fc fc [ 30.309294] ^ [ 30.309327] fff00000c6360280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.309369] fff00000c6360300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.309407] ==================================================================
[ 22.584665] ================================================================== [ 22.585287] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 22.585613] Read of size 1 at addr ffff88810168397f by task kunit_try_catch/187 [ 22.585878] [ 22.586003] CPU: 1 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 22.586053] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.586065] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.586087] Call Trace: [ 22.586100] <TASK> [ 22.586116] dump_stack_lvl+0x73/0xb0 [ 22.586147] print_report+0xd1/0x610 [ 22.586169] ? __virt_addr_valid+0x1db/0x2d0 [ 22.586192] ? kmalloc_oob_left+0x361/0x3c0 [ 22.586212] ? kasan_complete_mode_report_info+0x64/0x200 [ 22.586238] ? kmalloc_oob_left+0x361/0x3c0 [ 22.586269] kasan_report+0x141/0x180 [ 22.586290] ? kmalloc_oob_left+0x361/0x3c0 [ 22.586315] __asan_report_load1_noabort+0x18/0x20 [ 22.586338] kmalloc_oob_left+0x361/0x3c0 [ 22.586359] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 22.586380] ? __schedule+0x10c6/0x2b60 [ 22.586403] ? __pfx_read_tsc+0x10/0x10 [ 22.586424] ? ktime_get_ts64+0x86/0x230 [ 22.586449] kunit_try_run_case+0x1a5/0x480 [ 22.586473] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.586494] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.586516] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.586539] ? __kthread_parkme+0x82/0x180 [ 22.586558] ? preempt_count_sub+0x50/0x80 [ 22.586581] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.586604] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.586629] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.587013] kthread+0x337/0x6f0 [ 22.587033] ? trace_preempt_on+0x20/0xc0 [ 22.587057] ? __pfx_kthread+0x10/0x10 [ 22.587077] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.587098] ? calculate_sigpending+0x7b/0xa0 [ 22.587121] ? __pfx_kthread+0x10/0x10 [ 22.587141] ret_from_fork+0x116/0x1d0 [ 22.587160] ? __pfx_kthread+0x10/0x10 [ 22.587180] ret_from_fork_asm+0x1a/0x30 [ 22.587210] </TASK> [ 22.587222] [ 22.601897] Allocated by task 21: [ 22.602428] kasan_save_stack+0x45/0x70 [ 22.603120] kasan_save_track+0x18/0x40 [ 22.603783] kasan_save_alloc_info+0x3b/0x50 [ 22.604483] __kasan_kmalloc+0xb7/0xc0 [ 22.605285] __kmalloc_cache_node_noprof+0x188/0x420 [ 22.605884] build_sched_domains+0x38c/0x5d80 [ 22.606491] partition_sched_domains+0x471/0x9c0 [ 22.607091] rebuild_sched_domains_locked+0x97d/0xd50 [ 22.607694] cpuset_update_active_cpus+0x80f/0x1a90 [ 22.608500] sched_cpu_activate+0x2bf/0x330 [ 22.608980] cpuhp_invoke_callback+0x2a1/0xf00 [ 22.609397] cpuhp_thread_fun+0x2ce/0x5c0 [ 22.609555] smpboot_thread_fn+0x2bc/0x730 [ 22.610350] kthread+0x337/0x6f0 [ 22.610684] ret_from_fork+0x116/0x1d0 [ 22.611030] ret_from_fork_asm+0x1a/0x30 [ 22.611180] [ 22.611290] Freed by task 21: [ 22.611414] kasan_save_stack+0x45/0x70 [ 22.611553] kasan_save_track+0x18/0x40 [ 22.611680] kasan_save_free_info+0x3f/0x60 [ 22.611818] __kasan_slab_free+0x56/0x70 [ 22.612504] kfree+0x222/0x3f0 [ 22.612794] build_sched_domains+0x2072/0x5d80 [ 22.613340] partition_sched_domains+0x471/0x9c0 [ 22.613835] rebuild_sched_domains_locked+0x97d/0xd50 [ 22.614353] cpuset_update_active_cpus+0x80f/0x1a90 [ 22.614914] sched_cpu_activate+0x2bf/0x330 [ 22.615372] cpuhp_invoke_callback+0x2a1/0xf00 [ 22.615810] cpuhp_thread_fun+0x2ce/0x5c0 [ 22.616407] smpboot_thread_fn+0x2bc/0x730 [ 22.616926] kthread+0x337/0x6f0 [ 22.617295] ret_from_fork+0x116/0x1d0 [ 22.617548] ret_from_fork_asm+0x1a/0x30 [ 22.618038] [ 22.618115] The buggy address belongs to the object at ffff888101683960 [ 22.618115] which belongs to the cache kmalloc-16 of size 16 [ 22.618478] The buggy address is located 15 bytes to the right of [ 22.618478] allocated 16-byte region [ffff888101683960, ffff888101683970) [ 22.619563] [ 22.619774] The buggy address belongs to the physical page: [ 22.620430] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101683 [ 22.621452] flags: 0x200000000000000(node=0|zone=2) [ 22.621987] page_type: f5(slab) [ 22.622375] raw: 0200000000000000 ffff888100041640 dead000000000100 dead000000000122 [ 22.622769] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 22.623521] page dumped because: kasan: bad access detected [ 22.624130] [ 22.624338] Memory state around the buggy address: [ 22.624630] ffff888101683800: fa fb fc fc fa fb fc fc fa fb fc fc 00 06 fc fc [ 22.625257] ffff888101683880: 00 06 fc fc 00 06 fc fc 00 00 fc fc fa fb fc fc [ 22.625681] >ffff888101683900: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 22.626442] ^ [ 22.627004] ffff888101683980: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.627220] ffff888101683a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.627438] ==================================================================