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Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-0fcb05b7.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d63a4093e9d7/vmlinux-0fcb05b7.xz kernel image: https://storage.googleapis.com/syzbot-assets/238bf14f8b3f/bzImage-0fcb05b7.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e1268acad3c273b12120@syzkaller.appspotmail.com ACPI Error: AE_NO_MEMORY, Could not update object reference count (20260408/utdelete-651) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x410/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4638 [inline] slab_alloc_node mm/slub.c:4974 [inline] kmem_cache_alloc_noprof+0xa1/0x600 mm/slub.c:5010 acpi_ut_create_generic_state drivers/acpi/acpica/utstate.c:90 [inline] acpi_ut_create_update_state+0x76/0x110 drivers/acpi/acpica/utstate.c:165 acpi_ut_create_update_state_and_push+0x2a/0x70 drivers/acpi/acpica/utmisc.c:172 acpi_ut_update_object_reference+0x2c0/0x870 drivers/acpi/acpica/utdelete.c:563 acpi_ds_do_implicit_return+0x2ba/0x3c0 drivers/acpi/acpica/dsutils.c:113 acpi_ds_is_result_used+0x7a/0x8c0 drivers/acpi/acpica/dsutils.c:156 acpi_ds_delete_result_if_not_used+0xb1/0x190 drivers/acpi/acpica/dsutils.c:320 acpi_ds_exec_end_op+0x1015/0x1b00 drivers/acpi/acpica/dswexec.c:740 acpi_ps_parse_loop+0xfa3/0x23f0 drivers/acpi/acpica/psloop.c:553 acpi_ps_parse_aml+0x388/0x1020 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_method+0x89d/0xa70 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0xd05/0x1320 drivers/acpi/acpica/nseval.c:205 acpi_ut_evaluate_object+0xe1/0x560 drivers/acpi/acpica/uteval.c:60 acpi_rs_get_prt_method_data+0xb2/0x150 drivers/acpi/acpica/rsutils.c:446 acpi_get_irq_routing_table+0x98/0xe0 drivers/acpi/acpica/rsxface.c:137 acpi_pci_irq_find_prt_entry+0x163/0x1040 drivers/acpi/pci_irq.c:215 acpi_pci_irq_lookup+0x45/0x690 drivers/acpi/pci_irq.c:299 acpi_pci_irq_disable+0x151/0x340 drivers/acpi/pci_irq.c:499 do_pci_disable_device drivers/pci/pci.c:2203 [inline] pci_disable_device+0x1d6/0x320 drivers/pci/pci.c:2239 pci_device_remove+0x99/0x1c0 drivers/pci/pci-driver.c:535 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 pci_stop_dev drivers/pci/remove.c:27 [inline] pci_stop_bus_device+0xf6/0x120 drivers/pci/remove.c:94 pci_stop_and_remove_bus_device drivers/pci/remove.c:129 [inline] pci_stop_and_remove_bus_device_locked+0x77/0xb0 drivers/pci/remove.c:137 remove_store+0xe5/0x150 drivers/pci/pci-sysfs.c:524 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f32c179e559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f32c2588fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f32c1a25fa0 RCX: 00007f32c179e559 RDX: 0000000000000001 RSI: 0000200000000580 RDI: 0000000000000009 RBP: 00007f32c18358b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f32c1a26038 R14: 00007f32c1a25fa0 R15: 00007fff5dc47ed8 ACPI Error: AE_NO_MEMORY, Could not update object reference count (20260408/utdelete-651) ================================================================== BUG: KASAN: slab-use-after-free in acpi_ns_check_package+0x163c/0x1950 drivers/acpi/acpica/nsprepkg.c:274 Read of size 1 at addr ffff888000d624e9 by task syz.0.0/5326 CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 acpi_ns_check_package+0x163c/0x1950 drivers/acpi/acpica/nsprepkg.c:274 acpi_ns_check_return_value+0x22f/0x3a0 drivers/acpi/acpica/nspredef.c:136 acpi_ns_evaluate+0xd5f/0x1320 drivers/acpi/acpica/nseval.c:261 acpi_ut_evaluate_object+0xe1/0x560 drivers/acpi/acpica/uteval.c:60 acpi_rs_get_prt_method_data+0xb2/0x150 drivers/acpi/acpica/rsutils.c:446 acpi_get_irq_routing_table+0x98/0xe0 drivers/acpi/acpica/rsxface.c:137 acpi_pci_irq_find_prt_entry+0x163/0x1040 drivers/acpi/pci_irq.c:215 acpi_pci_irq_lookup+0x45/0x690 drivers/acpi/pci_irq.c:299 acpi_pci_irq_disable+0x151/0x340 drivers/acpi/pci_irq.c:499 do_pci_disable_device drivers/pci/pci.c:2203 [inline] pci_disable_device+0x1d6/0x320 drivers/pci/pci.c:2239 pci_device_remove+0x99/0x1c0 drivers/pci/pci-driver.c:535 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 pci_stop_dev drivers/pci/remove.c:27 [inline] pci_stop_bus_device+0xf6/0x120 drivers/pci/remove.c:94 pci_stop_and_remove_bus_device drivers/pci/remove.c:129 [inline] pci_stop_and_remove_bus_device_locked+0x77/0xb0 drivers/pci/remove.c:137 remove_store+0xe5/0x150 drivers/pci/pci-sysfs.c:524 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f32c179e559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f32c2588fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f32c1a25fa0 RCX: 00007f32c179e559 RDX: 0000000000000001 RSI: 0000200000000580 RDI: 0000000000000009 RBP: 00007f32c18358b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f32c1a26038 R14: 00007f32c1a25fa0 R15: 00007fff5dc47ed8 Allocated by task 1: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:351 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:377 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010 acpi_ut_allocate_object_desc_dbg+0x8c/0x230 drivers/acpi/acpica/utobject.c:359 acpi_ut_create_internal_object_dbg+0x4d/0x310 drivers/acpi/acpica/utobject.c:69 acpi_ds_build_internal_package_obj+0x126/0xbe0 drivers/acpi/acpica/dspkginit.c:92 acpi_ds_eval_data_object_operands+0x337/0x5c0 drivers/acpi/acpica/dsopcode.c:638 acpi_ds_exec_end_op+0x1307/0x1b00 drivers/acpi/acpica/dswexec.c:-1 acpi_ps_parse_loop+0xfa3/0x23f0 drivers/acpi/acpica/psloop.c:553 acpi_ps_parse_aml+0x388/0x1020 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_table+0x352/0x440 drivers/acpi/acpica/psxface.c:295 acpi_ns_execute_table+0x5d0/0x890 drivers/acpi/acpica/nsparse.c:116 acpi_ns_parse_table+0xef/0x170 drivers/acpi/acpica/nsparse.c:268 acpi_ns_load_table+0x131/0x430 drivers/acpi/acpica/nsload.c:71 acpi_tb_load_namespace+0x2ca/0x880 drivers/acpi/acpica/tbxfload.c:158 acpi_load_tables+0x53/0xf0 drivers/acpi/acpica/tbxfload.c:59 acpi_bus_init+0x82/0x360 drivers/acpi/bus.c:1373 acpi_init+0xa1/0x1f0 drivers/acpi/bus.c:1486 do_one_initcall+0x250/0x870 init/main.c:1362 do_initcall_level+0x10a/0x1a0 init/main.c:1424 do_initcalls+0x59/0xa0 init/main.c:1440 kernel_init_freeable+0x29d/0x3e0 init/main.c:1675 kernel_init+0x22/0x1d0 init/main.c:1565 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Freed by task 5326: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:264 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6509 [inline] kmem_cache_free+0x182/0x650 mm/slub.c:6636 acpi_os_release_object+0x1d/0x30 drivers/acpi/osl.c:1661 acpi_ut_delete_object_desc+0x9b/0x110 drivers/acpi/acpica/utobject.c:402 acpi_ut_delete_internal_obj drivers/acpi/acpica/utdelete.c:316 [inline] acpi_ut_update_ref_count+0x174c/0x1d10 drivers/acpi/acpica/utdelete.c:436 acpi_ut_update_object_reference+0x4a8/0x870 drivers/acpi/acpica/utdelete.c:632 acpi_ds_clear_implicit_return+0x156/0x1f0 drivers/acpi/acpica/dsutils.c:55 acpi_ds_exec_end_control_op+0x533/0xe00 drivers/acpi/acpica/dscontrol.c:226 acpi_ds_exec_end_op+0x799/0x1b00 drivers/acpi/acpica/dswexec.c:462 acpi_ps_parse_loop+0xfa3/0x23f0 drivers/acpi/acpica/psloop.c:553 acpi_ps_parse_aml+0x388/0x1020 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_method+0x89d/0xa70 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0xd05/0x1320 drivers/acpi/acpica/nseval.c:205 acpi_ut_evaluate_object+0xe1/0x560 drivers/acpi/acpica/uteval.c:60 acpi_rs_get_prt_method_data+0xb2/0x150 drivers/acpi/acpica/rsutils.c:446 acpi_get_irq_routing_table+0x98/0xe0 drivers/acpi/acpica/rsxface.c:137 acpi_pci_irq_find_prt_entry+0x163/0x1040 drivers/acpi/pci_irq.c:215 acpi_pci_irq_lookup+0x45/0x690 drivers/acpi/pci_irq.c:299 acpi_pci_irq_disable+0x151/0x340 drivers/acpi/pci_irq.c:499 do_pci_disable_device drivers/pci/pci.c:2203 [inline] pci_disable_device+0x1d6/0x320 drivers/pci/pci.c:2239 pci_device_remove+0x99/0x1c0 drivers/pci/pci-driver.c:535 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 pci_stop_dev drivers/pci/remove.c:27 [inline] pci_stop_bus_device+0xf6/0x120 drivers/pci/remove.c:94 pci_stop_and_remove_bus_device drivers/pci/remove.c:129 [inline] pci_stop_and_remove_bus_device_locked+0x77/0xb0 drivers/pci/remove.c:137 remove_store+0xe5/0x150 drivers/pci/pci-sysfs.c:524 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888000d624e0 which belongs to the cache Acpi-Operand of size 72 The buggy address is located 9 bytes inside of freed 72-byte region [ffff888000d624e0, ffff888000d62528) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd62 flags: 0x7ff00000000000(node=0|zone=0|lastcpupid=0x7ff) page_type: f5(slab) raw: 007ff00000000000 ffff88801c0a0dc0 dead000000000100 dead000000000122 raw: 0000000000000000 0000000200270027 00000000f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 3956366881 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab+0x7d/0x620 mm/slub.c:3462 new_slab mm/slub.c:3513 [inline] refill_objects+0x2d5/0x350 mm/slub.c:7418 refill_sheaf mm/slub.c:2885 [inline] __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774 alloc_from_pcs mm/slub.c:4850 [inline] slab_alloc_node mm/slub.c:4984 [inline] kmem_cache_alloc_noprof+0x399/0x600 mm/slub.c:5010 acpi_ut_allocate_object_desc_dbg+0x8c/0x230 drivers/acpi/acpica/utobject.c:359 acpi_ut_create_internal_object_dbg+0x4d/0x310 drivers/acpi/acpica/utobject.c:69 acpi_ds_build_internal_object+0x294/0x690 drivers/acpi/acpica/dsobject.c:94 acpi_ds_build_internal_package_obj+0x599/0xbe0 drivers/acpi/acpica/dspkginit.c:202 acpi_ds_eval_data_object_operands+0x337/0x5c0 drivers/acpi/acpica/dsopcode.c:638 acpi_ds_exec_end_op+0x1307/0x1b00 drivers/acpi/acpica/dswexec.c:-1 acpi_ps_parse_loop+0xfa3/0x23f0 drivers/acpi/acpica/psloop.c:553 acpi_ps_parse_aml+0x388/0x1020 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_table+0x352/0x440 drivers/acpi/acpica/psxface.c:295 page_owner free stack trace missing Memory state around the buggy address: ffff888000d62380: fb fc fc fc fc fa fb fb fb fb fb fb fb fb fc fc ffff888000d62400: fc fc 00 00 00 00 00 00 00 00 00 fc fc fc fc 00 >ffff888000d62480: 00 00 00 00 00 00 00 00 fc fc fc fc fa fb fb fb ^ ffff888000d62500: fb fb fb fb fb fc fc fc fc fa fb fb fb fb fb fb ffff888000d62580: fb fb fc fc fc fc fa fb fb fb fb fb fb fb fb fc 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