{"id":"CVE-2026-98572","title":"bpf: Fix immediate JMP JEQ/JNE on MIPS32","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix immediate JMP JEQ/JNE on MIPS32\n\nAn addu instruction was emitted instead of addiu, causing the immediate\nvalue 1 to be interpreted as register $at. This made t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 1547e9f3a7d71971216e6dba30270cae13fe4e02","Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < beeae92e70e705e90a0d6d9b3b8498ee3b92f495","Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0","Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 876ef04c75c2751acfd355606fca3eced71dec65","Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8","Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < db762fd96be225bd06161c9631160c755d891693","Linux 5.16"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:18:38.105Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98572","references":[{"url":"https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02"},{"url":"https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495"},{"url":"https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0"},{"url":"https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65"},{"url":"https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8"},{"url":"https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.257Z","slug":"CVE-2026-98572","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix immediate JMP JEQ/JNE on MIPS32\n\nAn addu instruction was emitted instead of addiu, causing the immediate\nvalue 1 to be interpreted as register $at. This made the comparison\nresult invalid when the immediate operand was negative. Note that $at\nis mapped to BPF_REG_AX, which is used for constant blinding.\n\nFix the instruction to use the immediate form.\n\nFound with test_bpf on MIPS32r1 emulated by QEMU.\n\n## Affected\n\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 1547e9f3a7d71971216e6dba30270cae13fe4e02`\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < beeae92e70e705e90a0d6d9b3b8498ee3b92f495`\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0`\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 876ef04c75c2751acfd355606fca3eced71dec65`\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8`\n- `Linux >= eb63cfcd2ee8ec3805f6881f43341f589c3d2278 < db762fd96be225bd06161c9631160c755d891693`\n- `Linux 5.16`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}