{"id":"CVE-2026-74380","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix iommu_map_sgtable() return value check\n\nCommit \"iommu: return full error code from iommu_map_sg[_atomic]()\"\nchanged iommu_map_sgtable() to return an ss…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix iommu_map_sgtable() return value check\n\nCommit \"iommu: return full error code from iommu_map_sg[_atomic]()\"\nchanged iommu_map_sgtable() to return an ss…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-190"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9"],"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:17:42.997","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74380","references":[{"url":"https://git.kernel.org/stable/c/18f74762013a4b6aa6f905c4459e0f506f9c5c7b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2a68928c445138961e2c451983b473aeb3f5b999","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3ac173e46ef6fda9c9df8d47cdff4df962df9728","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f3985c2a500df3126cb12a2e0ccf26a40bc495d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/79240eee5a40014d9edfabe19f06b35ffa84e5f8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e024c7993d839503d6c1f0044b8fc537c30300e9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74380.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-74380"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516798"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74380"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74380"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081505-CVE-2026-74380-1dbd@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00176,"epssPercentile":0.0705,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:54:56.549536Z"},"scores":{"nvd":8.8,"vendor":5.5,"cna":8.8},"ingestedAt":"2026-10-16T19:46:24.371Z","slug":"CVE-2026-74380","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix iommu_map_sgtable() return value check\n\nCommit \"iommu: return full error code from iommu_map_sg[_atomic]()\"\nchanged iommu_map_sgtable() to return an ssize_t and negative values\nin error cases, rather than a size_t and a zero.\n\npin_job() also was incorrectly assigning to 'int', which could cause\noverflows into negative values.\n\nUpdate pin_job() to correctly check for errors from iommu_map_sgtable.\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 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74380.json)","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":230347,"id":"CVE-2026-74380","ts":1793130919390,"field":"cvss","old":"5.5","new":"8.8"},{"seq":230346,"id":"CVE-2026-74380","ts":1793130919390,"field":"severity","old":"medium","new":"high"},{"seq":224247,"id":"CVE-2026-74380","ts":1792325036210,"field":"cvss","old":"8.8","new":"5.5"},{"seq":224246,"id":"CVE-2026-74380","ts":1792325036210,"field":"severity","old":"high","new":"medium"}]}