{"id":"CVE-2026-98162","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(&sess->tree_conns,…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(&sess->tree_conns,…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401","CWE-772"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.15.145, < 5.16","linux_kernel >= 6.1.71, < 6.2","linux_kernel >= 6.6, < 7.2.6"],"patched":["linux_kernel 7.2.6"],"published":"2026-09-25","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:18:12.070","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98162","references":[{"url":"https://git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fea9c705bbc618ba6426424c9f8330555820c9ec","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98162.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98162"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541417"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98162"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98162"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98162.mbox"},{"url":"https://git.kernel.org/stable/c/fa0c45986fc60b3edfb35879f2fb0eacc0e49e98"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00114,"epssPercentile":0.01443,"ingestedAt":"2026-09-25T14:09:46.373Z","slug":"CVE-2026-98162","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix tree connection leak in smb2_tree_connect()\n\nSee the procedure below:\n\n  smb2_tree_connect\n    ksmbd_tree_conn_connect\n      xa_store(&sess->tree_conns, tree_conn->id, tree_conn)\n      ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS)\n      ksmbd_share_tree_conn_inc(sc)\n    ksmbd_iov_pin_rsp // fail\n    status.ret = KSMBD_TREE_CONN_STATUS_NOMEM\n    // do not disconnect tree_conn\n\nDisconnect the new tree connection if ksmbd_iov_pin_rsp() fails.\n\n## Affected\n\n- `linux_kernel >= 5.15.145, < 5.16`\n- `linux_kernel >= 6.1.71, < 6.2`\n- `linux_kernel >= 6.6, < 7.2.6`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.2.6`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-02 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98162.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212533,"id":"CVE-2026-98162","ts":1790668205110,"field":"cvss","old":null,"new":"5.5"},{"seq":212532,"id":"CVE-2026-98162","ts":1790668205110,"field":"severity","old":"none","new":"medium"}]}