{"id":"CVE-2026-31758","title":"usb: usbtmc: Flush anchored URBs in usbtmc_release","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: Flush anchored URBs in usbtmc_release\n\nWhen calling usbtmc_release, pending anchored URBs must be flushed or\nkilled to prevent use-after-free errors (e.g. …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 959ef329071136e4335b54822fe2f607659b4569","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < e189d443767f7cd390c52f2e122e1fc41c7562d6","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 95e09b07e50290254b28b8395509473104518f8c","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 977b632db51d231dec0bc571089a5c2402674139","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < d40198de50232e04c14c6e2092e896766c95ea48","Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 8a768552f7a8276fb9e01d49773d2094ace7c8f1","Linux 4.19"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:13:00.464457Z"},"published":"2026-05-01","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:26.197Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31758","references":[{"url":"https://git.kernel.org/stable/c/959ef329071136e4335b54822fe2f607659b4569"},{"url":"https://git.kernel.org/stable/c/e189d443767f7cd390c52f2e122e1fc41c7562d6"},{"url":"https://git.kernel.org/stable/c/7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f"},{"url":"https://git.kernel.org/stable/c/95e09b07e50290254b28b8395509473104518f8c"},{"url":"https://git.kernel.org/stable/c/d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1"},{"url":"https://git.kernel.org/stable/c/977b632db51d231dec0bc571089a5c2402674139"},{"url":"https://git.kernel.org/stable/c/d40198de50232e04c14c6e2092e896766c95ea48"},{"url":"https://git.kernel.org/stable/c/8a768552f7a8276fb9e01d49773d2094ace7c8f1"}],"tags":["cve.org"],"epss":0.00171,"epssPercentile":0.06044,"ingestedAt":"2026-10-16T17:24:46.675Z","slug":"CVE-2026-31758","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: Flush anchored URBs in usbtmc_release\n\nWhen calling usbtmc_release, pending anchored URBs must be flushed or\nkilled to prevent use-after-free errors (e.g. in the HCD giveback\npath). Call usbtmc_draw_down() to allow anchored URBs to be completed.\n\n## Affected\n\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 959ef329071136e4335b54822fe2f607659b4569`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < e189d443767f7cd390c52f2e122e1fc41c7562d6`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 95e09b07e50290254b28b8395509473104518f8c`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 977b632db51d231dec0bc571089a5c2402674139`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < d40198de50232e04c14c6e2092e896766c95ea48`\n- `Linux >= 4f3c8d6eddc272b386464524235440a418ed2029 < 8a768552f7a8276fb9e01d49773d2094ace7c8f1`\n- `Linux 4.19`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}