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NVD / CVE Program· CNA Linux

CVE-2026-80835: crypto: qcom-rng - Remove crypto_rng interface

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 14d9ee8286460a7b82f3b8610b5c7ebf4550b06b, 2ecdf5c9910e20f73639bc322f0518a3439d17c0, 669d940351eda316b82e24986e2e0e057653ce7d.

Low priority for now. Upgrade to Linux Linux 14d9ee8286460a7b82f3b8610b5c7ebf4550b06b, 2ecdf5c9910e20f73639bc322f0518a3439d17c0, 669d940351eda316b82e24986e2e0e057653ce7d 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: crypto: qcom-rng - Remove crypto_rng interface qcom-rng.c exposes the same hardware through two completely separate interfaces, crypto_rng and hwrng. However, the implementation of this is buggy because it permits generation operations from these interfaces to run concurrently with each other, accessing the same registers. That is, qcom_rng_generate() synchronizes with itself but not with qcom_hwrng_read(). This results in potential repetition of output from the RNG, output of non-random values, etc. Fortunately, there's actually no point in hardware RNG drivers implementing the crypto_rng interface. It's not actually used by anything besides the "rng" algorithm type of AF_ALG, which in turn is not actually used in practice. Other crypto_rng hardware drivers are likewise being phased out, leaving just the hwrng support. Thus, remove it to simplify the code and avoid conflict (and confusion) with the hwrng interface which is the one that actually matters.

—No exploit Fix available
Published
Sep 4, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • A fix has been released

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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.

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Affected 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

    • 6.7affected
    • f29cd5bb64c258f29b4c49452532481f50eb43ca and later · before bb474dcd9d0224264a27a60891f00872b879835faffected · git
    • f29cd5bb64c258f29b4c49452532481f50eb43ca and later · before 14d9ee8286460a7b82f3b8610b5c7ebf4550b06baffected · git
    • f29cd5bb64c258f29b4c49452532481f50eb43ca and later · before 843e2bdaf8deb8bc341203094dfe582e38ea4af2affected · git
    • f29cd5bb64c258f29b4c49452532481f50eb43ca and later · before 669d940351eda316b82e24986e2e0e057653ce7daffected · git
    • f29cd5bb64c258f29b4c49452532481f50eb43ca and later · before 2ecdf5c9910e20f73639bc322f0518a3439d17c0affected · git
    • before 6.7not affected · semver
    • 6.12.108 and later · up to and including 6.12.*not affected · semver
    • 6.18.49 and later · up to and including 6.18.*not affected · semver
    • 7.1.13 and later · up to and including 7.1.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.1.13-17.1.13-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-80833Sep 4, 2026 · crypto: sun8i-ss - Remove crypto_rng interface
    0Monitor
  • ← EarlierCVE-2026-80834Sep 4, 2026 · crypto: sun8i-ce - Remove crypto_rng interface
    0Monitor
  • Later →CVE-2026-80836Sep 4, 2026 · crypto: virtio - bound the akcipher result length
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux14d9ee8286460a7b82f3b8610b5c7ebf4550b06bVendor (CNA)
Linux Linux2ecdf5c9910e20f73639bc322f0518a3439d17c0Vendor (CNA)
Linux Linux669d940351eda316b82e24986e2e0e057653ce7dVendor (CNA)
Linux Linux843e2bdaf8deb8bc341203094dfe582e38ea4af2Vendor (CNA)
Linux Linuxbb474dcd9d0224264a27a60891f00872b879835fVendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package 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.

EPSS, last 120 days

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 researchers

Finders, 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).

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

  1. Fix✗ → ✓

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References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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