{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46059", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.095Z", "datePublished": "2026-05-27T12:57:19.928Z", "dateUpdated": "2026-05-27T12:57:19.928Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:57:19.928Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN\n\nFor guests with NRIPS disabled, L1 does not provide NextRIP when running\nan L2 with an injected soft interrupt, instead it advances the current RIP\nbefore running it. KVM uses the current RIP as the NextRIP in vmcb02 to\nemulate a CPU without NRIPS.\n\nHowever, after L2 runs the first time, NextRIP will be updated by the CPU\nand/or KVM, and the current RIP is no longer the correct value to use in\nvmcb02. Hence, after save/restore, use the current RIP if and only if a\nnested run is pending, otherwise use NextRIP. Give soft_int_next_rip the\nsame treatment, as it's the same logic, just for a narrower use case.\n\n[sean: give soft_int_next_rip the same treatment]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kvm/svm/nested.c"], "versions": [{"version": "cc440cdad5b7a4c1de12dace725209eb3e0cf663", "lessThan": "3428ed1529a1af4cce5aff6c5bd2fcc39ad726bb", "status": "affected", "versionType": "git"}, {"version": "cc440cdad5b7a4c1de12dace725209eb3e0cf663", "lessThan": "69fe1411a5ce678b4da6489b5d2282b4e1d13acf", "status": "affected", "versionType": "git"}, {"version": "cc440cdad5b7a4c1de12dace725209eb3e0cf663", "lessThan": "8d397582f6b5e9fbcf09781c7c934b4910e94a50", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kvm/svm/nested.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.1-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3428ed1529a1af4cce5aff6c5bd2fcc39ad726bb"}, {"url": "https://git.kernel.org/stable/c/69fe1411a5ce678b4da6489b5d2282b4e1d13acf"}, {"url": "https://git.kernel.org/stable/c/8d397582f6b5e9fbcf09781c7c934b4910e94a50"}], "title": "KVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN\n\nFor guests with NRIPS disabled, L1 does not provide NextRIP when running\nan L2 with an injected soft interrupt, instead it advances the current RIP\nbefore running it. KVM uses the current RIP as the NextRIP in vmcb02 to\nemulate a CPU without NRIPS.\n\nHowever, after L2 runs the first time, NextRIP will be updated by the CPU\nand/or KVM, and the current RIP is no longer the correct value to use in\nvmcb02. Hence, after save/restore, use the current RIP if and only if a\nnested run is pending, otherwise use NextRIP. Give soft_int_next_rip the\nsame treatment, as it's the same logic, just for a narrower use case.\n\n[sean: give soft_int_next_rip the same treatment]"}], "id": "CVE-2026-46059", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:25.650", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3428ed1529a1af4cce5aff6c5bd2fcc39ad726bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/69fe1411a5ce678b4da6489b5d2282b4e1d13acf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d397582f6b5e9fbcf09781c7c934b4910e94a50"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: KVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN", "id": "2481944", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481944"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-841", "details": ["A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) nSVM module. This vulnerability occurs when running nested virtual machines (L2 guests) with NRIPS (Next Instruction Pointer Suppression) disabled. After an L2 guest's initial run, the `NextRIP` value in `vmcb02` may not be correctly updated, potentially leading to incorrect program execution flow within the virtualized environment. This issue could affect the stability or integrity of the guest system."], "name": "CVE-2026-46059", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46059\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46059\nhttps://lore.kernel.org/linux-cve-announce/2026052755-CVE-2026-46059-6ef4@gregkh/T"], "threat_severity": "Low"}

{"created": "2026-05-27T20:15:16.214153+00:00", "updated": "2026-05-27T20:15:16.214169+00:00", "vendors": []}