{"api_version":"1","generated_at":"2026-05-09T11:18:08+00:00","cve":"CVE-2026-43321","urls":{"html":"https://cve.report/CVE-2026-43321","api":"https://cve.report/api/cve/CVE-2026-43321.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43321","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43321"},"summary":{"title":"bpf: Properly mark live registers for indirect jumps","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 14:16:40","updated_at":"2026-05-09 06:16:13"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6","name":"https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5","name":"https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/df02c3ff3be4bf998812c8c8e79d10db1329d535","name":"https://git.kernel.org/stable/c/df02c3ff3be4bf998812c8c8e79d10db1329d535","refsource":"MITRE","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43321","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43321","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 493d9e0d608339a32f568504d5fd411a261bb0af 7beae54111c34ca63357ef120e115889b915beb5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 493d9e0d608339a32f568504d5fd411a261bb0af d1aab1ca576c90192ba961094d51b0be6355a4d6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.6 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7beae54111c34ca63357ef120e115889b915beb5","status":"affected","version":"493d9e0d608339a32f568504d5fd411a261bb0af","versionType":"git"},{"lessThan":"d1aab1ca576c90192ba961094d51b0be6355a4d6","status":"affected","version":"493d9e0d608339a32f568504d5fd411a261bb0af","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.6","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-05-09T04:10:36.698Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5"},{"url":"https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6"}],"title":"bpf: Properly mark live registers for indirect jumps","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43321","datePublished":"2026-05-08T13:26:15.600Z","dateReserved":"2026-05-01T14:12:56.001Z","dateUpdated":"2026-05-09T04:10:36.698Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 14:16:40","lastModifiedDate":"2026-05-09 06:16:13","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43321","Ordinal":"1","Title":"bpf: Properly mark live registers for indirect jumps","CVE":"CVE-2026-43321","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43321","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"bpf: Properly mark live registers for indirect jumps"}]}}}