FKIE_CVE-2026-93135
Vulnerability from fkie_nvd - Published: 2026-09-17 17:18 - Updated: 2026-10-19 10:17| Vendor | Product | Version |
|---|
{
"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-\u003eimm) in bpf_do_misc_fixups(). This is because the\nhelper is expected to be inlined by the JIT compiler later. Therefore,\ninsn-\u003eimm 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-\u003eimm) 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 \u0027prog-\u003ejit_required = 1\u0027 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"
}
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Sightings
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Nomenclature
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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