================================================================== BUG: KCSAN: data-race in acpi_ut_exit / acpi_ut_exit write to 0xffffffff896248c8 of 4 bytes by task 3639 on cpu 1: acpi_ut_exit+0xd5/0xf0 drivers/acpi/acpica/utdebug.c:423 acpi_ex_enter_interpreter+0xbb/0xd0 drivers/acpi/acpica/exutils.c:67 acpi_evaluate_object+0x661/0x800 drivers/acpi/acpica/nsxfeval.c:427 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff896248c8 of 4 bytes by task 3643 on cpu 0: acpi_ut_exit+0xaf/0xf0 drivers/acpi/acpica/utdebug.c:422 acpi_ns_delete_namespace_subtree+0x1f4/0x210 drivers/acpi/acpica/nsalloc.c:-1 acpi_ds_terminate_control_method+0x289/0x5e0 drivers/acpi/acpica/dsmethod.c:780 acpi_ps_parse_aml+0x68f/0xa10 drivers/acpi/acpica/psparse.c:582 acpi_ps_execute_method+0x4af/0x660 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x8ae/0xac0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x41b/0x800 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00000015 -> 0x00000013 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3643 Comm: syz-executor102 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_status_exit / acpi_ut_trace read-write to 0xffffffff896248c8 of 4 bytes by task 3636 on cpu 0: acpi_ut_trace+0x44/0x180 drivers/acpi/acpica/utdebug.c:268 acpi_evaluate_object+0x60/0x800 drivers/acpi/acpica/nsxfeval.c:173 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff896248c8 of 4 bytes by task 3643 on cpu 1: acpi_ut_status_exit+0xd8/0x120 drivers/acpi/acpica/utdebug.c:471 acpi_ps_get_aml_opcode drivers/acpi/acpica/psobject.c:135 [inline] acpi_ps_create_op+0x24b/0x6b0 drivers/acpi/acpica/psobject.c:310 acpi_ps_parse_loop+0x4e1/0x1520 drivers/acpi/acpica/psloop.c:306 acpi_ps_parse_aml+0x2b0/0xa10 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_method+0x4af/0x660 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x8ae/0xac0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x41b/0x800 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000000b -> 0x0000000e Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3643 Comm: syz-executor102 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_exit / acpi_ut_trace read to 0xffffffff896248c8 of 4 bytes by task 3641 on cpu 0: acpi_ut_exit+0xaf/0xf0 drivers/acpi/acpica/utdebug.c:422 acpi_ex_enter_interpreter+0xbb/0xd0 drivers/acpi/acpica/exutils.c:67 acpi_ds_terminate_control_method+0x28e/0x5e0 drivers/acpi/acpica/dsmethod.c:782 acpi_ps_parse_aml+0x68f/0xa10 drivers/acpi/acpica/psparse.c:582 acpi_ps_execute_method+0x4af/0x660 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x8ae/0xac0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x41b/0x800 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f read-write to 0xffffffff896248c8 of 4 bytes by task 3643 on cpu 1: acpi_ut_trace+0x44/0x180 drivers/acpi/acpica/utdebug.c:268 acpi_ns_delete_namespace_subtree+0x33/0x210 drivers/acpi/acpica/nsalloc.c:324 acpi_ds_terminate_control_method+0x289/0x5e0 drivers/acpi/acpica/dsmethod.c:780 acpi_ps_parse_aml+0x68f/0xa10 drivers/acpi/acpica/psparse.c:582 acpi_ps_execute_method+0x4af/0x660 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x8ae/0xac0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x41b/0x800 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000000d -> 0x00000007 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3643 Comm: syz-executor102 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_trace_ptr read-write to 0xffffffff896248c8 of 4 bytes by task 3640 on cpu 0: acpi_ut_trace+0x44/0x180 drivers/acpi/acpica/utdebug.c:268 acpi_evaluate_object+0x60/0x800 drivers/acpi/acpica/nsxfeval.c:173 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f read-write to 0xffffffff896248c8 of 4 bytes by task 3643 on cpu 1: acpi_ut_trace_ptr+0x49/0x180 drivers/acpi/acpica/utdebug.c:306 acpi_ps_create_op+0x63/0x6b0 drivers/acpi/acpica/psobject.c:308 acpi_ps_parse_loop+0x4e1/0x1520 drivers/acpi/acpica/psloop.c:306 acpi_ps_parse_aml+0x2b0/0xa10 drivers/acpi/acpica/psparse.c:489 acpi_ps_execute_method+0x4af/0x660 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x8ae/0xac0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x41b/0x800 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x7c/0x120 drivers/acpi/utils.c:260 status_show+0x5d/0xc0 drivers/acpi/device_sysfs.c:539 dev_attr_show+0x3f/0xa0 drivers/base/core.c:2491 sysfs_kf_seq_show+0x1a3/0x280 fs/sysfs/file.c:65 kernfs_seq_show+0x82/0xa0 fs/kernfs/file.c:216 seq_read_iter+0x2d9/0x8f0 fs/seq_file.c:231 kernfs_fop_read_iter+0xbe/0x320 fs/kernfs/file.c:290 new_sync_read fs/read_write.c:493 [inline] vfs_read+0x699/0x7c0 fs/read_write.c:574 ksys_read+0xdc/0x1a0 fs/read_write.c:716 __do_sys_read fs/read_write.c:725 [inline] __se_sys_read fs/read_write.c:723 [inline] __x64_sys_read+0x40/0x50 fs/read_write.c:723 x64_sys_call+0x2135/0x2550 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x112/0x360 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000000d -> 0x00000010 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3643 Comm: syz-executor102 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 ==================================================================