binfmt_elf_fdpic: only honour the first PT_INTERP
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
- Fixed version: Linux Linux 21eaf5594a33d16343a011c752624099c30e918f, 3349ef6a366a61d631f6a263d12cea240957719d, 3c31397b0a75310217f1f2f3c7bdfd8af67aec4c; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 21eaf5594a33d16343a011c752624099c30e918f, 3349ef6a366a61d631f6a263d12cea240957719d, 3c31397b0a75310217f1f2f3c7bdfd8af67aec4c; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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").
- Published
- Aug 10, 2026
- Updated
- Aug 19, 2026
- EPSS
- 0.2% · 7th percentile
- CWE
- —
Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 2.6.12affected
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 9854538349aaf6fb88ed33b56987954ac1716151affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 3c31397b0a75310217f1f2f3c7bdfd8af67aec4caffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 849a7bd9d266e43a457db5c6b322600f916a2127affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before e4563e07ef5c938d5332c5c44721db976f214bc6affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 21eaf5594a33d16343a011c752624099c30e918faffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 89b9121c3b0162655fc2f190b714ae64f1aa8caeaffected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 69ecc199880bf7e8d06224c82dc411d18f9285f8affected · git
- 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and later · before 3349ef6a366a61d631f6a263d12cea240957719daffected · git
- before 2.6.12not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.187-1 | 6.1.187-1 |
| Debian:12 | linux-6.12 | before 6.12.101-1~deb12u1 | 6.12.101-1~deb12u1 |
| Debian:13 | linux | before 6.12.101-1 | 6.12.101-1 |
| Debian:14 | linux | before 7.1.6-1 | 7.1.6-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
- CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler40Plan
- CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index40Plan
- CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 21eaf5594a33d16343a011c752624099c30e918f | Vendor (CNA) |
| Linux Linux | 3349ef6a366a61d631f6a263d12cea240957719d | Vendor (CNA) |
| Linux Linux | 3c31397b0a75310217f1f2f3c7bdfd8af67aec4c | Vendor (CNA) |
| Linux Linux | 69ecc199880bf7e8d06224c82dc411d18f9285f8 | Vendor (CNA) |
| Linux Linux | 849a7bd9d266e43a457db5c6b322600f916a2127 | Vendor (CNA) |
| Linux Linux | 89b9121c3b0162655fc2f190b714ae64f1aa8cae | Vendor (CNA) |
| Linux Linux | 9854538349aaf6fb88ed33b56987954ac1716151 | Vendor (CNA) |
| Linux Linux | e4563e07ef5c938d5332c5c44721db976f214bc6 | Vendor (CNA) |
| azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 | 6.6.150.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.187-1 · Debian:12 | Package registry (OSV) |
| debian:linux-6.12 | 6.12.101-1~deb12u1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0800 · Aug 11, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- git.kernel.org/stable/c/3349ef6a366a61d631f6a263d12cea240957719d
- git.kernel.org/stable/c/3c31397b0a75310217f1f2f3c7bdfd8af67aec4c
- git.kernel.org/stable/c/69ecc199880bf7e8d06224c82dc411d18f9285f8
- git.kernel.org/stable/c/849a7bd9d266e43a457db5c6b322600f916a2127
- git.kernel.org/stable/c/89b9121c3b0162655fc2f190b714ae64f1aa8cae
- git.kernel.org/stable/c/9854538349aaf6fb88ed33b56987954ac1716151
- git.kernel.org/stable/c/e4563e07ef5c938d5332c5c44721db976f214bc6
Vendor advisories and official records. Exploit/PoC links are deliberately left out.