{"id":"CVE-2026-43321","summary":"bpf: Properly mark live registers for indirect jumps","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Properly mark live registers for indirect jumps\n\nFor a `gotox rX` instruction the rX register should be marked as used\nin the compute_insn_live_regs() function. Fix this.","modified":"2026-07-15T01:49:16.541858302Z","published":"2026-05-08T13:26:15.600Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43321.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43321.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43321"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"493d9e0d608339a32f568504d5fd411a261bb0af"},{"fixed":"7beae54111c34ca63357ef120e115889b915beb5"},{"fixed":"d1aab1ca576c90192ba961094d51b0be6355a4d6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43321.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43321.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}