{"id":"CVE-2026-97440","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix node refcount leak on ctrl packet alloc failure\n\nqrtr_send_resume_tx() calls qrtr_node_lookup() which takes a\nreference on the returned node","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix node refcount leak on ctrl packet alloc failure\n\nqrtr_send_resume_tx() calls qrtr_node_lookup() which takes a\nreference on the returned node. If the subs…","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-911"],"vendor":"Linux","product":"Linux","affected":["Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < 78d066ecac9ce50441d4affae0df2093c4c3e62e","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < f3e90fbcd2d5ec1632bc2e8cdd1218f56bcb5fcf","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < c3515740174b778d0ee44acc477b51a6478da6b8","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < f76a39c45182d9137e053081cee9f2c197404ce6","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < 477353db343663d5502ca442c6de785d2f23f273","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < 9d969c98732a4d42212ec580dd5bbad53f246103","Linux >= cb6530b99fafea6c0636c4640bd21301d12cdbc9 < 3b09ff54114566864eea59020f6b69c5bb325b9d","Linux 5.6"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:55.643","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97440","references":[{"url":"https://git.kernel.org/stable/c/3b09ff54114566864eea59020f6b69c5bb325b9d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/477353db343663d5502ca442c6de785d2f23f273","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/78d066ecac9ce50441d4affae0df2093c4c3e62e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9d969c98732a4d42212ec580dd5bbad53f246103","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c3515740174b778d0ee44acc477b51a6478da6b8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f3e90fbcd2d5ec1632bc2e8cdd1218f56bcb5fcf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f76a39c45182d9137e053081cee9f2c197404ce6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97440.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97440"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540501"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97440"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97440"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97440.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00173,"epssPercentile":0.06619,"cvssSource":"vendor","ingestedAt":"2026-09-24T16:47:15.878Z","slug":"CVE-2026-97440","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix node refcount leak on ctrl packet alloc failure\n\nqrtr_send_resume_tx() calls qrtr_node_lookup() which takes a\nreference on the returned node. If the subsequent call to\nqrtr_alloc_ctrl_packet() fails due to memory allocation failure, the\nfunction returns -ENOMEM without calling qrtr_node_release() to\nrelease the node reference.\n\nAdd qrtr_node_release(node) before returning on the allocation failure\npath to properly release the reference.\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, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97440.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213552,"id":"CVE-2026-97440","ts":1790754773216,"field":"cvss","old":null,"new":"5.5"},{"seq":213551,"id":"CVE-2026-97440","ts":1790754773216,"field":"severity","old":"none","new":"medium"}]}