================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_trace_ptr read-write to 0xffffffff896268c8 of 4 bytes by task 3642 on cpu 1: 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 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 0: acpi_ut_trace_ptr+0x49/0x180 drivers/acpi/acpica/utdebug.c:306 acpi_ps_complete_this_op+0x39/0x4e0 drivers/acpi/acpica/psparse.c:115 acpi_ps_complete_op+0x6f/0x780 drivers/acpi/acpica/psobject.c:451 acpi_ps_parse_loop+0x1104/0x1520 drivers/acpi/acpica/psloop.c:580 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: 0x0000001b -> 0x0000001e Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_exit / acpi_ut_trace read-write to 0xffffffff896268c8 of 4 bytes by task 3647 on cpu 1: 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 write to 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 0: acpi_ut_exit+0xd5/0xf0 drivers/acpi/acpica/utdebug.c:423 acpi_ds_delete_walk_state+0x20c/0x220 include/acpi/platform/aclinuxex.h:-1 acpi_ps_parse_aml+0x946/0xa10 drivers/acpi/acpica/psparse.c:691 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: 0x00000009 -> 0x0000000c Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_trace read-write to 0xffffffff896268c8 of 4 bytes by task 3644 on cpu 1: 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 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 0: acpi_ut_trace+0x44/0x180 drivers/acpi/acpica/utdebug.c:268 acpi_ns_search_parent_tree drivers/acpi/acpica/nssearch.c:171 [inline] acpi_ns_search_and_enter+0x15c/0x860 drivers/acpi/acpica/nssearch.c:354 acpi_ns_lookup+0xbd8/0x1070 drivers/acpi/acpica/nsaccess.c:589 acpi_ps_get_next_namepath+0xc1/0x620 drivers/acpi/acpica/psargs.c:263 acpi_ps_get_arguments drivers/acpi/acpica/psloop.c:79 [inline] acpi_ps_parse_loop+0x605/0x1520 drivers/acpi/acpica/psloop.c:408 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: 0x0000000e -> 0x00000011 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_acquire_mutex / acpi_ut_release_mutex write to 0xffffffff89626ac8 of 8 bytes by task 3642 on cpu 1: acpi_ut_release_mutex+0x209/0x240 drivers/acpi/acpica/utmutex.c:326 acpi_get_name+0xd7/0xf0 drivers/acpi/acpica/nsxfname.c:163 acpi_object_path drivers/acpi/device_sysfs.c:26 [inline] path_show+0x5d/0xe0 drivers/acpi/device_sysfs.c:459 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 0xffffffff89626ac8 of 8 bytes by task 3648 on cpu 0: acpi_ut_acquire_mutex+0x54/0x4a0 drivers/acpi/acpica/utmutex.c:212 acpi_get_name+0x62/0xf0 drivers/acpi/acpica/nsxfname.c:143 acpi_object_path drivers/acpi/device_sysfs.c:26 [inline] path_show+0x5d/0xe0 drivers/acpi/device_sysfs.c:459 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: 0xffff8881003dd640 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_exit / acpi_ut_track_stack_ptr write to 0xffffffff896268c8 of 4 bytes by task 3642 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 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 0: acpi_ut_track_stack_ptr+0x5f/0xd0 drivers/acpi/acpica/utdebug.c:73 acpi_ut_get_object_size+0x2f/0x1d0 drivers/acpi/acpica/utobject.c:669 acpi_evaluate_object+0x62c/0x800 drivers/acpi/acpica/nsxfeval.c:394 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: 0x00000008 -> 0x00000006 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_exit / acpi_ut_exit read to 0xffffffff896268c8 of 4 bytes by task 3643 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 write to 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 1: acpi_ut_exit+0xd5/0xf0 drivers/acpi/acpica/utdebug.c:423 acpi_ex_exit_interpreter+0xbb/0xd0 drivers/acpi/acpica/exutils.c:109 acpi_ns_evaluate+0x8b5/0xac0 drivers/acpi/acpica/nseval.c:206 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: 0x00000010 -> 0x0000000e Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_trace_ptr read-write to 0xffffffff896268c8 of 4 bytes by task 3647 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 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 1: acpi_ut_trace_ptr+0x49/0x180 drivers/acpi/acpica/utdebug.c:306 acpi_ns_build_normalized_path+0x43/0x420 drivers/acpi/acpica/nsnames.c:202 acpi_ns_get_normalized_pathname+0x44/0x1b0 drivers/acpi/acpica/nsnames.c:305 acpi_ex_start_trace_method+0x2c/0x270 drivers/acpi/acpica/extrace.c:227 acpi_ds_begin_method_execution+0x50/0x6a0 drivers/acpi/acpica/dsmethod.c:304 acpi_ds_call_control_method+0x264/0x620 drivers/acpi/acpica/dsmethod.c:502 acpi_ps_parse_aml+0x4c3/0xa10 drivers/acpi/acpica/psparse.c:517 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: 0x0000001e -> 0x00000021 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_ptr_exit / acpi_ut_trace read-write to 0xffffffff896268c8 of 4 bytes by task 3647 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 write to 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 1: acpi_ut_ptr_exit+0xdd/0x100 drivers/acpi/acpica/utdebug.c:549 acpi_ut_create_internal_object_dbg drivers/acpi/acpica/utobject.c:115 [inline] acpi_ut_create_integer_object+0xb0/0x130 drivers/acpi/acpica/utobject.c:180 acpi_ps_execute_method+0x3f5/0x660 drivers/acpi/acpica/psxface.c:180 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: 0x0000000e -> 0x00000011 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_acquire_mutex / acpi_ut_acquire_mutex write to 0xffffffff89626ac8 of 8 bytes by task 3645 on cpu 0: acpi_ut_acquire_mutex+0x378/0x4a0 drivers/acpi/acpica/utmutex.c:250 acpi_ex_enter_interpreter+0x6b/0xd0 drivers/acpi/acpica/exutils.c:62 acpi_ns_evaluate+0x8a6/0xac0 drivers/acpi/acpica/nseval.c:204 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 to 0xffffffff89626ac8 of 8 bytes by task 3648 on cpu 1: acpi_ut_acquire_mutex+0x167/0x4a0 drivers/acpi/acpica/utmutex.c:212 acpi_ex_enter_interpreter+0x2e/0xd0 drivers/acpi/acpica/exutils.c:57 acpi_ns_evaluate+0x8a6/0xac0 drivers/acpi/acpica/nseval.c:204 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: 0x0000000000000000 -> 0xffff8881003da280 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_trace_ptr / acpi_ut_track_stack_ptr read-write to 0xffffffff896268c8 of 4 bytes by task 3644 on cpu 0: acpi_ut_trace_ptr+0x49/0x180 drivers/acpi/acpica/utdebug.c:306 acpi_ns_get_normalized_pathname+0x36/0x1b0 drivers/acpi/acpica/nsnames.c:301 acpi_ns_evaluate+0x24e/0xac0 drivers/acpi/acpica/nseval.c:96 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 to 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 1: acpi_ut_track_stack_ptr+0x5f/0xd0 drivers/acpi/acpica/utdebug.c:73 acpi_ps_init_op+0x17/0xa0 drivers/acpi/acpica/psutils.c:58 acpi_ps_alloc_op+0xdb/0x170 drivers/acpi/acpica/psutils.c:121 acpi_ps_create_op+0x289/0x6b0 drivers/acpi/acpica/psobject.c:321 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: 0x00000013 -> 0x00000014 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ================================================================== ================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_value_exit read-write to 0xffffffff896268c8 of 4 bytes by task 3642 on cpu 1: 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 0xffffffff896268c8 of 4 bytes by task 3648 on cpu 0: acpi_ut_value_exit+0xbf/0x110 drivers/acpi/acpica/utdebug.c:510 acpi_ns_get_type+0x9d/0xb0 drivers/acpi/acpica/nsutils.c:-1 acpi_ns_evaluate+0x5f/0xac0 drivers/acpi/acpica/nseval.c:73 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: 0x00000008 -> 0x0000000b Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3648 Comm: syz-executor109 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 ==================================================================