{"id":"CVE-2026-93117","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when usb_dynids_lock is held,\nas remove_id_store can free the nod…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when usb_dynids_lock is held,\nas remove_id_store can free the nod…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < 9b82ddf76827e2a8ff033a8131ecf24f2d6cae26","Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < 44904468e58d3dc3a0229782acbeb9677b060541","Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < 64320c6e721bdec4c43a789c866c8a099dd0c843","Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < 7e795801295c84a6bbc10a3e7a4c99c50bfe45ac","Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < e6a9c6b79b70046afdf5a1dbd03b1104536f30c0","Linux >= 0c7a2b72746a96f999fd2728520d03d94879be69 < ef8154d8b52d60338c1fd8d793cd8e891c604c14","Linux 2.6.33"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:18:06.300","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93117","references":[{"url":"https://git.kernel.org/stable/c/44904468e58d3dc3a0229782acbeb9677b060541","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/64320c6e721bdec4c43a789c866c8a099dd0c843","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7e795801295c84a6bbc10a3e7a4c99c50bfe45ac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9b82ddf76827e2a8ff033a8131ecf24f2d6cae26","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e6a9c6b79b70046afdf5a1dbd03b1104536f30c0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ef8154d8b52d60338c1fd8d793cd8e891c604c14","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93117.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93117"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536635"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93117"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93117"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93117.mbox"},{"url":"https://kernelcve.org/list/?q=CVE-2026-93117"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.752Z","epss":0.00205,"epssPercentile":0.10459,"cvss":4.1,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-416"],"slug":"CVE-2026-93117","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nusb: fix UAF when probe runs concurrent to dyn ID removal\n\nDynamic IDs are only guaranteed to be valid when usb_dynids_lock is held,\nas remove_id_store can free the node. Thus, make a copy in\nusb_probe_interface. Clarify the documentation that the id parameter is\nonly valid during the probe.\n\nUSB serial has the same pattern, but it does not need fixing as the IDs\ncannot be removed via sysfs.\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** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93117.json)","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":22.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225704,"id":"CVE-2026-93117","ts":1792498380549,"field":"cvss","old":null,"new":"4.1"},{"seq":225703,"id":"CVE-2026-93117","ts":1792498380549,"field":"severity","old":"none","new":"medium"}]}