# CVE-2026-68151: binfmt_elf_fdpic: only honour the first PT_INTERP

> An unprivileged local attacker can cause a denial of service by repeatedly executing crafted binaries with multiple PT_INTERP headers, leaking resources and locking files.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Aug 2026
- **Updated:** 19 Aug 2026
- **Also known as:** BELL-CVE-2026-68151, DEBIAN-CVE-2026-68151, GHSA-vrxm-q8gm-fcvq, UBUNTU-CVE-2026-68151

## What is CVE-2026-68151?

CVE-2026-68151 is a denial of service vulnerability in Linux, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

binfmt_elf_fdpic: only honour the first PT_INTERP

The program header scan handles PT_INTERP from a switch nested in the
scan loop, so its break leaves the switch and not the loop. A binary
carrying more than one PT_INTERP runs the case again and overwrites both
interpreter_name and interpreter. The previous name allocation leaks and
so does the previous interpreter reference, along with the write denial
open_exec() took on it. The denial is never released, so the file stays
unwritable for as long as the system runs.

An unprivileged caller reaches this with a crafted binary and repeats it
at will. binfmt_elf stops at the first PT_INTERP. Do the same here.

The flaw dates back to the driver's introduction in the pre-git history
tree introduced in v2.6.11 by 91808d6ebe39 ("[PATCH] FRV: Add FDPIC ELF
binary format driver").

## Which versions are affected by CVE-2026-68151?


## How do I fix CVE-2026-68151?

Apply the vendor's patch.

## Is CVE-2026-68151 being exploited?

There is no known exploitation of CVE-2026-68151 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-68151 and fix it if it is affected.

What it is: CVE-2026-68151 is a denial of service vulnerability in Linux, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-68151 in the wild and no public exploit code.

Affected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-68151/ (Markdown: https://insights.sbomify.com/CVE-2026-68151/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-68151
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-68151
- OSV: https://osv.dev/vulnerability/CVE-2026-68151

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-68151/
Summaries are generated and may contain mistakes; the official description above is the record.