{"id":"CVE-2026-90424","title":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path\n\ntegra241_cmdqv_init_structures() allocates VINTF0 with kzalloc_obj(), inits\nit, and preallocates its log…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path\n\ntegra241_cmdqv_init_structures() allocates VINTF0 with kzalloc_obj(), inits\nit, and preallocates its log…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < 1d2271d7df5230e4ce36bdafd17524bd004f3b3f","Linux >= 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < 417190bde0fda4ee857999a722ca90163fbec587","Linux >= 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < f40f3144477314b489e4bc209c06cb51679fe82b","Linux 6.12"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:47.060","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90424","references":[{"url":"https://git.kernel.org/stable/c/1d2271d7df5230e4ce36bdafd17524bd004f3b3f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/417190bde0fda4ee857999a722ca90163fbec587","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f40f3144477314b489e4bc209c06cb51679fe82b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90424.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90424"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536235"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90424"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90424"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90424.mbox"},{"url":"https://git.kernel.org/stable/c/05a1405d0cba3d8253261b02eb65e5cd3ca09ab3"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.793Z","epss":0.00209,"epssPercentile":0.1093,"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-772"],"slug":"CVE-2026-90424","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\niommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path\n\ntegra241_cmdqv_init_structures() allocates VINTF0 with kzalloc_obj(), inits\nit, and preallocates its logical VCMDQs. Two of its error paths leak.\n\nWhen tegra241_cmdqv_init_vintf() fails it returns before VINTF0 reaches the\ncmdqv->vintfs[] array, so the devres unwind on probe failure cannot reach\nit; free it directly there.\n\nA later VCMDQ preallocation failure instead leaves VINTF0 published, and so\nthis time the unwind does reach tegra241_cmdqv_remove_vintf(), which then\nfrees it from vintf->hyp_own. But tegra241_vintf_hw_init() sets that flag\nonly afterward, from a HW read-back, so the still-uninited VINTF0 reads as\nguest-owned and leaks, with mutex_destroy() and ida_destroy() run on fields\nit never set up.\n\nDecide ownership from vintf->idx instead, the index assigned when its id is\nallocated: idx 0 is the kernel-owned VINTF0, while idx >= 1 marks a guest\nVINTF. So the in-kernel free decision in tegra241_cmdqv_remove_vintf() and\ntegra241_vintf_free_lvcmdq() now keys on idx too, and hyp_own stays a pure\nHW-readback state.\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 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90424.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216279,"id":"CVE-2026-90424","ts":1791274056472,"field":"cvss","old":null,"new":"5.5"},{"seq":216278,"id":"CVE-2026-90424","ts":1791274056472,"field":"severity","old":"none","new":"medium"}]}