{"id":"CVE-2026-98605","published":"2026-10-18T16:17:13.237","lastModified":"2026-10-19T10:19:22.317","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: samsung-dsim: fix TE GPIO lifetime for host attach\n\nWhen the Exynos DSI driver was generalized into samsung-dsim, the TE\nGPIO acquisition was switched from gpiod_get_optional() to\ndevm_gpiod_get_optional() while keeping the matching gpiod_put() calls.\nThat combination is wrong for a managed descriptor.\n\nHowever, dropping the puts and keeping the managed get is also wrong:\nsamsung_dsim_register_te_irq() runs from the DSI host attach callback,\nand host detach/reattach can happen without destroying the device that\nowns the managed action. A second attach would then request the GPIO\nagain without having released it.\n\nSwitch back to a non-managed gpiod_get_optional() and keep the explicit\ngpiod_put() on the request_irq() error path and in\nsamsung_dsim_unregister_te_irq().\n\n[Luca: remove unnecessary comment]","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/5759bbef951c39d264ac0f47daa4137d01403aea","tags":[]},{"url":"https://git.kernel.org/stable/c/77a43e00c57486a5212ef22d4665cafad62a5d4b","tags":[]},{"url":"https://git.kernel.org/stable/c/9b796251c3cca45a33a5c859c6818c58aa982277","tags":[]},{"url":"https://git.kernel.org/stable/c/ada667890773e033d2f40dc94176e3beb930b516","tags":[]},{"url":"https://git.kernel.org/stable/c/ebffd70e4877bb7554974cf975a27872f2bb225f","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}