CVE-2026-93135

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93135", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.087Z", "datePublished": "2026-09-17T16:11:36.771Z", "dateUpdated": "2026-10-19T09:06:08.106Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:06:08.106Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject programs with inlined helpers if JIT is not available\n\nWhen an architecture (such as LoongArch, ARM64, and RISC-V) implements\nbpf_jit_inlines_helper_call(), the verifier skips rewriting the helper\ncall offset (insn->imm) in bpf_do_misc_fixups(). This is because the\nhelper is expected to be inlined by the JIT compiler later. Therefore,\ninsn->imm remains as the raw helper enum ID.\n\nHowever, if JIT is disabled at runtime (net.core.bpf_jit_enable=0) or\nif JIT compilation fails dynamically (e.g., due to OOM), the program\nfalls back to the BPF interpreter.\n\nWhen the interpreter executes (__bpf_call_base + insn->imm) with the\nunpatched raw ID, it jumps into an invalid address space, triggering\nan instruction alignment fault or a kernel panic.\n\nAlthough these helpers have valid C implementations in the kernel, the\nomission of offset rewriting makes runtime interpreter fallback fatal.\n\nFix this by setting 'prog->jit_required = 1' when helper call rewriting\nis skipped for JIT inlining. This ensures that such programs are safely\nrejected if JIT is not available, preventing the runtime kernel panic."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/fixups.c"], "versions": [{"version": "2ddec2c80b4402c293c7e6e0881cecaaf77e8cec", "lessThan": "21c6445366795fa3a89954e1d318e7c8afdef843", "status": "affected", "versionType": "git"}, {"version": "2ddec2c80b4402c293c7e6e0881cecaaf77e8cec", "lessThan": "f1c27922576edccb99d0257827d09bd05c0304a6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/fixups.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/21c6445366795fa3a89954e1d318e7c8afdef843"}, {"url": "https://git.kernel.org/stable/c/f1c27922576edccb99d0257827d09bd05c0304a6"}], "title": "bpf: Reject programs with inlined helpers if JIT is not available", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/fixups.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "21c6445366795fa3a89954e1d318e7c8afdef843", "status": "affected", "version": "2ddec2c80b4402c293c7e6e0881cecaaf77e8cec", "versionType": "git"}, {"lessThan": "f1c27922576edccb99d0257827d09bd05c0304a6", "status": "affected", "version": "2ddec2c80b4402c293c7e6e0881cecaaf77e8cec", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/fixups.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"lessThan": "6.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject programs with inlined helpers if JIT is not available\n\nWhen an architecture (such as LoongArch, ARM64, and RISC-V) implements\nbpf_jit_inlines_helper_call(), the verifier skips rewriting the helper\ncall offset (insn->imm) in bpf_do_misc_fixups(). This is because the\nhelper is expected to be inlined by the JIT compiler later. Therefore,\ninsn->imm remains as the raw helper enum ID.\n\nHowever, if JIT is disabled at runtime (net.core.bpf_jit_enable=0) or\nif JIT compilation fails dynamically (e.g., due to OOM), the program\nfalls back to the BPF interpreter.\n\nWhen the interpreter executes (__bpf_call_base + insn->imm) with the\nunpatched raw ID, it jumps into an invalid address space, triggering\nan instruction alignment fault or a kernel panic.\n\nAlthough these helpers have valid C implementations in the kernel, the\nomission of offset rewriting makes runtime interpreter fallback fatal.\n\nFix this by setting 'prog->jit_required = 1' when helper call rewriting\nis skipped for JIT inlining. This ensures that such programs are safely\nrejected if JIT is not available, preventing the runtime kernel panic."}], "id": "CVE-2026-93135", "lastModified": "2026-10-19T10:17:03.513", "metrics": {}, "published": "2026-09-17T17:18:08.373", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21c6445366795fa3a89954e1d318e7c8afdef843"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1c27922576edccb99d0257827d09bd05c0304a6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2ddec2c80b4402c293c7e6e0881cecaaf77e8cec,21c6445366795fa3a89954e1d318e7c8afdef843)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2ddec2c80b4402c293c7e6e0881cecaaf77e8cec,f1c27922576edccb99d0257827d09bd05c0304a6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T13:15:16.930818+00:00", "updated": "2026-09-19T16:30:17.472385+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665", "CWE-20"]}