{"id":"CVE-2026-90335","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: skip cdev_del() when no cdev is registered\n\nTTY device registration can fail before a cdev is allocated.\nSerial core keeps the port so setserial can still use it, …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: skip cdev_del() when no cdev is registered\n\nTTY device registration can fail before a cdev is allocated.\nSerial core keeps the port so setserial can still use it, …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a < 3dbf85ef40b6366ba15e882f7536cdc98bea579a","Linux >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a < c3b5623fd97648f2747444aa8932ae604662df93","Linux 4.3"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:32.073","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90335","references":[{"url":"https://git.kernel.org/stable/c/3dbf85ef40b6366ba15e882f7536cdc98bea579a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c3b5623fd97648f2747444aa8932ae604662df93","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.819Z","epss":0.00155,"epssPercentile":0.05081,"slug":"CVE-2026-90335","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntty: skip cdev_del() when no cdev is registered\n\nTTY device registration can fail before a cdev is allocated.\nSerial core keeps the port so setserial can still use it, and later\nremoval passes the NULL cdev slot to cdev_del(), causing a NULL-pointer\ndereference.\n\nOnly delete the cdev when the slot is not NULL.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}