{"cve":"CVE-2026-98816","nvd":{"published":"2026-10-18T16:17:35.770","modified":"2026-10-19T10:19:45.683","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix overflow of jump offset in constant blinding\n\nbpf_jit_blind_insn() rewrites 'if rX op imm goto off' into:\n\n  AX = imm ^ rnd\n  AX ^= rnd\n  if rX op AX goto off\n\nand subtracts 2 from off when the jump is backward. off is s16, so\n-32767 and -32768 wrap and the jump goes 32767 insns forward, past the\nend of the prog. The jump is inside the patch, hence bpf_adj_branches()\ndoesn't check it. The kernel crashes when such prog runs with\nbpf_jit_harden=2.\n\nReturn -ERANGE in such case. bpf_jit_blind_constants() fails the same\nway when blinding of other insns moves a jump out of range.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/443328237113ee0ea515e506497334d871dbc2aa","https://git.kernel.org/stable/c/ad139384ecddb6f3e7e3c3c12765aafae0e39670"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98816","score":0.00162,"percentile":0.05371,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}