{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/net/bpf_jit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "716cb29dbed4d62e9e108950a1a82bcba4cc2d45",
              "status": "affected",
              "version": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
              "versionType": "git"
            },
            {
              "lessThan": "dacd348b8a993373576fe2ee2d8b114740ba57a6",
              "status": "affected",
              "version": "2425c9e002d2a1fdca34261b2fa6713eafef2163",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/loongarch/net/bpf_jit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is in the LoongArch eBPF JIT and is reached by loading a BPF program via the bpf(BPF_PROG_LOAD) syscall, which requires local access to the system. No network-facing path emits JITted signed ALU32 div/mod on behalf of a remote peer.\nAC:L - The attacker fully controls the BPF instruction sequence and the divisor/dividend, so producing a negative signed ALU32 quotient or remainder is deterministic and repeatable with no race, timing, or memory-layout dependency.\nPR:L - Loading an eBPF program requires only an unprivileged local user where unprivileged BPF is permitted, or CAP_BPF/CAP_SYS_ADMIN which is reachable via user namespaces on many deployments; no real root in the init namespace is needed.\nUI:N - The attacker loads and runs its own BPF program; no action by any other user or administrator is required at any point.\nS:U - The verifier bypass and resulting memory corruption stay within the kernel\u0027s own security authority on the same host, giving kernel-level privilege escalation rather than crossing a VM, IOMMU, or hypervisor boundary.\nC:H - The verifier models bits 63:32 of the ALU32 result as zero while the JIT leaves them set, so a later ALU64 shift lets the verifier conclude a register is constant zero when it is really 0xFFFFFFFF; using it as a pointer offset yields an attacker-controlled out-of-bounds read of arbitrary kernel memory.\nI:H - The same verifier/JIT range mismatch produces an out-of-bounds pointer that passes verification for stores as well as loads, giving an arbitrary kernel write primitive usable for control-flow hijacking and full privilege escalation.\nA:H - Out-of-bounds accesses through the mis-tracked register readily fault on unmapped or protected kernel addresses, causing an oops or panic, and the corruption can be repeated at will to bring the system down."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:02:31.315Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/716cb29dbed4d62e9e108950a1a82bcba4cc2d45"
        },
        {
          "url": "https://git.kernel.org/stable/c/dacd348b8a993373576fe2ee2d8b114740ba57a6"
        }
      ],
      "title": "LoongArch: BPF: Zero-extend signed ALU32 div/mod results",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68295",
    "datePublished": "2026-08-10T12:02:28.412Z",
    "dateReserved": "2026-07-30T09:28:09.380Z",
    "dateUpdated": "2026-08-17T05:02:31.315Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}