osl-1334 os_signal_semaphore : Signaling semaphore[ffff8881000c3390|1] ================================================================== BUG: KCSAN: data-race in number / vsnprintf write to 0xffffffff89405bc0 of 30 bytes by task 3755 on cpu 1: vsnprintf+0x2c0/0x8c0 lib/vsprintf.c:2896 vsprintf+0x2a/0x40 lib/vsprintf.c:3090 acpi_os_vprintf drivers/acpi/osl.c:162 [inline] acpi_os_printf+0x87/0x200 drivers/acpi/osl.c:153 acpi_debug_print+0x113/0x200 drivers/acpi/acpica/utdebug.c:158 acpi_os_wait_semaphore+0x29e/0x2b0 drivers/acpi/osl.c:1310 acpi_ut_acquire_mutex+0x242/0x4a0 drivers/acpi/acpica/utmutex.c:241 acpi_ns_get_node+0x46/0xc0 drivers/acpi/acpica/nsutils.c:721 acpi_get_handle+0xfd/0x180 drivers/acpi/acpica/nsxfname.c:98 acpi_has_method+0x46/0x80 drivers/acpi/utils.c:672 acpi_pci_set_power_state+0x5d/0x190 drivers/pci/pci-acpi.c:1084 platform_pci_set_power_state drivers/pci/pci.c:1068 [inline] pci_power_up+0x40/0x3b0 drivers/pci/pci.c:1306 pci_pm_power_up_and_verify_state+0x29/0x130 drivers/pci/pci.c:3153 pci_pm_default_resume_early drivers/pci/pci-driver.c:591 [inline] pci_pm_restore_noirq+0x53/0x1b0 drivers/pci/pci-driver.c:1259 dpm_run_callback+0x53/0x2f0 drivers/base/power/main.c:510 device_resume_noirq+0x851/0x880 drivers/base/power/main.c:857 async_resume_noirq+0x2c/0x40 drivers/base/power/main.c:879 async_run_entry_fn+0x52/0x180 kernel/async.c:129 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0x4d4/0x9a0 kernel/workqueue.c:3405 worker_thread+0x569/0x750 kernel/workqueue.c:3486 kthread+0x221/0x270 kernel/kthread.c:436 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 write to 0xffffffff89405bca of 1 bytes by task 3757 on cpu 0: number+0x5c2/0xb80 lib/vsprintf.c:553 vsnprintf+0x68f/0x8c0 lib/vsprintf.c:2909 vsprintf+0x2a/0x40 lib/vsprintf.c:3090 acpi_os_vprintf drivers/acpi/osl.c:162 [inline] acpi_os_printf+0x87/0x200 drivers/acpi/osl.c:153 acpi_debug_print+0x150/0x200 drivers/acpi/acpica/utdebug.c:171 acpi_ut_status_exit+0xc1/0x120 drivers/acpi/acpica/utdebug.c:-1 acpi_ns_get_node+0xa2/0xc0 drivers/acpi/acpica/nsutils.c:-1 acpi_get_handle+0xfd/0x180 drivers/acpi/acpica/nsxfname.c:98 acpi_has_method+0x46/0x80 drivers/acpi/utils.c:672 acpi_pci_set_power_state+0x5d/0x190 drivers/pci/pci-acpi.c:1084 platform_pci_set_power_state drivers/pci/pci.c:1068 [inline] pci_power_up+0x40/0x3b0 drivers/pci/pci.c:1306 pci_pm_power_up_and_verify_state+0x29/0x130 drivers/pci/pci.c:3153 pci_pm_default_resume_early drivers/pci/pci-driver.c:591 [inline] pci_pm_restore_noirq+0x53/0x1b0 drivers/pci/pci-driver.c:1259 dpm_run_callback+0x53/0x2f0 drivers/base/power/main.c:510 device_resume_noirq+0x851/0x880 drivers/base/power/main.c:857 async_resume_noirq+0x2c/0x40 drivers/base/power/main.c:879 async_run_entry_fn+0x52/0x180 kernel/async.c:129 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0x4d4/0x9a0 kernel/workqueue.c:3405 worker_thread+0x569/0x750 kernel/workqueue.c:3486 kthread+0x221/0x270 kernel/kthread.c:436 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x73 -> 0x65 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3757 Comm: kworker/u8:46 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: async async_run_entry_fn ==================================================================