{"cve":"CVE-2024-58238","nvd":{"published":"2025-08-09T15:15:27.893","modified":"2026-10-15T22:18:06.317","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btnxpuart: Resolve TX timeout error in power save stress test\n\nThis fixes the tx timeout issue seen while running a stress test on\nbtnxpuart for couple of hours, such that the interval between two HCI\ncommands coincide with the power save timeout value of 2 seconds.\n\nTest procedure using bash script:\n<load btnxpuart.ko>\nhciconfig hci0 up\n//Enable Power Save feature\nhcitool -i hci0 cmd 3f 23 02 00 00\nwhile (true)\ndo\n    hciconfig hci0 leadv\n    sleep 2\n    hciconfig hci0 noleadv\n    sleep 2\ndone\n\nError log, after adding few more debug prints:\nBluetooth: btnxpuart_queue_skb(): 01 0A 20 01 00\nBluetooth: hci0: Set UART break: on, status=0\nBluetooth: hci0: btnxpuart_tx_wakeup() tx_work scheduled\nBluetooth: hci0: btnxpuart_tx_work() dequeue: 01 0A 20 01 00\nCan't set advertise mode on hci0: Connection timed out (110)\nBluetooth: hci0: command 0x200a tx timeout\n\nWhen the power save mechanism turns on UART break, and btnxpuart_tx_work()\nis scheduled simultaneously, psdata->ps_state is read as PS_STATE_AWAKE,\nwhich prevents the psdata->work from being scheduled, which is responsible\nto turn OFF UART break.\n\nThis issue is fixed by adding a ps_lock mutex around UART break on/off as\nwell as around ps_state read/write.\nbtnxpuart_tx_wakeup() will now read updated ps_state value. If ps_state is\nPS_STATE_SLEEP, it will first schedule psdata->work, and then it will\nreschedule itself once UART break has been turned off and ps_state is\nPS_STATE_AWAKE.\n\nTested above script for 50,000 iterations and TX timeout error was not\nobserved anymore.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/9d5df94ce0e213d5b549633f528f96114c736190","https://git.kernel.org/stable/c/e4db90e4eb8d5487098712ffb1048f3fa6d25e98"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:06:45.861874017+00:00"},"epss":{"cve":"CVE-2024-58238","score":0.00162,"percentile":0.05372,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}