{"id":"CVE-2026-68295","title":"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","summary":"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…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 2425c9e002d2a1fdca34261b2fa6713eafef2163 < 16656c3d734693be3d8a36dbf9d09142b69f3ddc","Linux >= 2425c9e002d2a1fdca34261b2fa6713eafef2163 < 716cb29dbed4d62e9e108950a1a82bcba4cc2d45","Linux >= 2425c9e002d2a1fdca34261b2fa6713eafef2163 < dacd348b8a993373576fe2ee2d8b114740ba57a6","Linux 6.7"],"published":"2026-08-10","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:40.700","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68295","references":[{"url":"https://git.kernel.org/stable/c/16656c3d734693be3d8a36dbf9d09142b69f3ddc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/716cb29dbed4d62e9e108950a1a82bcba4cc2d45","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dacd348b8a993373576fe2ee2d8b114740ba57a6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00165,"epssPercentile":0.05322,"ingestedAt":"2026-10-15T11:00:41.691Z","slug":"CVE-2026-68295","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}