{"id":"CVE-2026-93210","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: harden DFS cache against invalid target hints\n\nCurrently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is\nNULL, and dfs_cache_noreq_update_tgth…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: harden DFS cache against invalid target hints\n\nCurrently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is\nNULL, and dfs_cache_noreq_update_tgth…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a48328afbc3f63e3b9de8827e2e16c15b17976f7","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6cb7f9fed8f40f28fbd464ca99c946951afc0952","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 66dbcdbb0cadffd12eb8f2b115fd57d384c5109d","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 846f0709559b9e27024e126a80bc7afb76516912","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bf86c08123c6ab8c61cc0be1dad7540db93738ff","Linux < 6.1.188","Linux < 6.6.157","Linux < 6.12.109","Linux < 6.18.50","Linux < 7.2.4","Linux (all versions)"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T16:17:15.877","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93210","references":[{"url":"https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T15:45:56.671Z","slug":"CVE-2026-93210","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: harden DFS cache against invalid target hints\n\nCurrently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is\nNULL, and dfs_cache_noreq_update_tgthint() assumes ce->tgthint is always\nvalid.\n\nIn preparation for clearing ce->tgthint in free_tgts(), harden callers\nof get_tgt_name() against ERR_PTR results and harden\ndfs_cache_noreq_update_tgthint() against NULL pointer dereferences.\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":[]}