{"id":"DEBIAN-CVE-2023-54118","details":"In the Linux kernel, the following vulnerability has been resolved:  serial: sc16is7xx: setup GPIO controller later in probe  The GPIO controller component of the sc16is7xx driver is setup too early, which can result in a race condition where another device tries to utilise the GPIO lines before the sc16is7xx device has finished initialising.  This issue manifests itself as an Oops when the GPIO lines are configured:      Unable to handle kernel read from unreadable memory at virtual address     ...     pc : sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx]     lr : sc16is7xx_gpio_direction_output+0x4c/0x108 [sc16is7xx]     ...     Call trace:     sc16is7xx_gpio_direction_output+0x68/0x108 [sc16is7xx]     gpiod_direction_output_raw_commit+0x64/0x318     gpiod_direction_output+0xb0/0x170     create_gpio_led+0xec/0x198     gpio_led_probe+0x16c/0x4f0     platform_drv_probe+0x5c/0xb0     really_probe+0xe8/0x448     driver_probe_device+0xe8/0x138     __device_attach_driver+0x94/0x118     bus_for_each_drv+0x8c/0xe0     __device_attach+0x100/0x1b8     device_initial_probe+0x28/0x38     bus_probe_device+0xa4/0xb0     deferred_probe_work_func+0x90/0xe0     process_one_work+0x1c4/0x480     worker_thread+0x54/0x430     kthread+0x138/0x150     ret_from_fork+0x10/0x1c  This patch moves the setup of the GPIO controller functions to later in the probe function, ensuring the sc16is7xx device has already finished initialising by the time other devices try to make use of the GPIO lines. The error handling has also been reordered to reflect the new initialisation order.","modified":"2026-09-15T08:47:40.937133710Z","published":"2025-12-24T13:16:13.737Z","upstream":["CVE-2023-54118"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-54118"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54118.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54118.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54118.json"}}],"schema_version":"1.9.0"}