{"id":"CVE-2026-98120","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix subreq ref leak\n\nFix a subrequest ref leak in netfs_unbuffered_write() in the event that\nsubreq->io_iter ends up zero length during preparation.","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix subreq ref leak\n\nFix a subrequest ref leak in netfs_unbuffered_write() in the event that\nsubreq->io_iter ends up zero length during preparation.","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 72d08d2839649d1c5efbe375751f4473fa4486af < ebefb12122d1319257ecac01c1a928f78007716a","Linux >= a0b4c7a49137ed21279f354eb59f49ddae8dffc2 < 0a573f4283a965a5e8716f621aec404cb4575328","Linux >= a0b4c7a49137ed21279f354eb59f49ddae8dffc2 < 3c30087e27598d9d359763e8be9bd3017fe08348","Linux 0c29f6d63122a0168d67cb8ecde5b4cf7fe4acb0","Linux >= 6.18.17 < 6.18.53","Linux >= 6.19.7 < 6.20","Linux 7.0"],"published":"2026-09-25","updated":"2026-09-30","sourceUpdated":"2026-09-30T14:10:59.253","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98120","references":[{"url":"https://git.kernel.org/stable/c/0a573f4283a965a5e8716f621aec404cb4575328","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3c30087e27598d9d359763e8be9bd3017fe08348","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ebefb12122d1319257ecac01c1a928f78007716a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98120.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98120"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541336"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98120"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98120"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98120.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00121,"epssPercentile":0.01871,"ingestedAt":"2026-09-25T11:06:38.820Z","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-911"],"slug":"CVE-2026-98120","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix subreq ref leak\n\nFix a subrequest ref leak in netfs_unbuffered_write() in the event that\nsubreq->io_iter ends up zero length during preparation.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98120.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224157,"id":"CVE-2026-98120","ts":1792324964922,"field":"cvss","old":null,"new":"5.5"},{"seq":224156,"id":"CVE-2026-98120","ts":1792324964922,"field":"severity","old":"none","new":"medium"}]}