{"id":"CVE-2026-68295","revision":"e5267339413f4ef2b7e55eb8518d0792","records":[{"revision":"e5267339413f4ef2b7e55eb8518d0792","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68295","aliases":[],"title":"LoongArch: BPF: Zero-extend signed ALU32 div/mod results","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Zero-extend signed ALU32 div/mod results\n\nALU32 operations write a 32-bit result and leave the upper 32 bits of\nthe BPF register zero. The LoongArch JIT sign-extends the result of\nsigned ALU32 BPF_DIV and BPF_MOD (off=1), so a negative 32-bit quotient\nor remainder leaves bits 63:32 set in JITted code while the verifier\nand interpreter model those bits as zero.\n\nKeep sign-extension on the operands, which signed divide needs, and\nzero-extend the ALU32 result after the divide or modulo instruction,\nmatching the unsigned ALU32 div/mod paths and every other ALU32\noperation in this JIT.","state":0,"publishedAt":"2026-08-10T12:02:28.412+00:00","modifiedAt":"2026-10-21T12:43:47.769+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/loongarch/net/bpf_jit.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2425c9e002d2a1fdca34261b2fa6713eafef2163\",\n                            \"lessThan\": \"7577cca85f2d4590c9d9423ba72ef54181a713c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2425c9e002d2a1fdca34261b2fa6713eafef2163\",\n                            \"lessThan\": \"16656c3d734693be3d8a36dbf9d09142b69f3ddc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2425c9e002d2a1fdca34261b2fa6713eafef2163\",\n                            \"lessThan\": \"716cb29dbed4d62e9e108950a1a82bcba4cc2d45\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2425c9e002d2a1fdca34261b2fa6713eafef2163\",\n                            \"lessThan\": \"dacd348b8a993373576fe2ee2d8b114740ba57a6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/loongarch/net/bpf_jit.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.6\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7577cca85f2d4590c9d9423ba72ef54181a713c9","https://git.kernel.org/stable/c/16656c3d734693be3d8a36dbf9d09142b69f3ddc","https://git.kernel.org/stable/c/716cb29dbed4d62e9e108950a1a82bcba4cc2d45","https://git.kernel.org/stable/c/dacd348b8a993373576fe2ee2d8b114740ba57a6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68295","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68295","identifiers":["CVE-2026-68295"]},"retained":false,"historicalAffected":[]}],"coverage":[]}