{"id":"CVE-2026-90166","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request()\n\nSee the procedure below:\n\n  ksmbd_tree_conn_connect\n    ksmbd_share_config_get\n      share->name = k…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request()\n\nSee the procedure below:\n\n  ksmbd_tree_conn_connect\n    ksmbd_share_config_get\n      share->name = k…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 4eb74a34ea401abfbbd5991076715dae3de938df","Linux >= e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 8461f27902727ad434375caf13a0100aafc0340f","Linux >= e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 7065d3648b1a48d2c49da3d6364dd3c4d503b10c","Linux >= e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < d2ccf905f47d2344270749f4dfa905afcd3edeb0","Linux 5.15"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:09.980","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90166","references":[{"url":"https://git.kernel.org/stable/c/4eb74a34ea401abfbbd5991076715dae3de938df","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7065d3648b1a48d2c49da3d6364dd3c4d503b10c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8461f27902727ad434375caf13a0100aafc0340f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d2ccf905f47d2344270749f4dfa905afcd3edeb0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.870Z","epss":0.002,"epssPercentile":0.10108,"slug":"CVE-2026-90166","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix null-ptr-deref in ksmbd_ipc_tree_connect_request()\n\nSee the procedure below:\n\n  ksmbd_tree_conn_connect\n    ksmbd_share_config_get\n      share->name = kstrdup() // fail\n      if (!test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) // false\n      // do not check `share->name`\n    ksmbd_ipc_tree_connect_request\n      strlen(share->name) // null-ptr-deref\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":[]}