ASoC: tas2781: bound firmware description string parsing
In the Linux kernel, the following vulnerability has been resolved: ASoC: tas2781: bound firmware description string parsing The TAS2781 firmware parser reads several variable-length description strings with strlen() before checking that the string terminator is present inside the firmware blob. A malformed firmware image without a NUL terminator can therefore make the parser walk past the end of the firmware buffer before the later size checks run. Add a small bounded string-length helper and use it for all description fields that are parsed from the firmware buffer. Keep the existing size checks for the fixed bytes that follow each string.
- Published
- Aug 10, 2026
- Updated
- Aug 17, 2026
- EPSS
- 0.2% · 5th percentile
- CWE
- —
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Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CNA vs NVD score
- NVD
- —
- CNA · Linux
- 7.1
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
—
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
- 6.5affected
- 915f5eadebd29ba185ac506766a90120153b7e14 and later · before 3ddb0d3e36507615e5ef010a879357a54870adf5affected · git
- 915f5eadebd29ba185ac506766a90120153b7e14 and later · before 0ec45e80a82785ee147516fdecf5c93707dec119affected · git
- 915f5eadebd29ba185ac506766a90120153b7e14 and later · before 41ae2b7d37c3dd82302167496836cca9f0328374affected · git
- 915f5eadebd29ba185ac506766a90120153b7e14 and later · before e75ef37d83c90b09bedb601624b47e168202b226affected · git
- 915f5eadebd29ba185ac506766a90120153b7e14 and later · before bc889dfcea9294a1eae7f8e2f3573a90764ae4d0affected · git
- before 6.5not affected · semver
- 6.6.148 and later · up to and including 6.6.*not affected · semver
- 6.12.101 and later · up to and including 6.12.*not affected · semver
- 6.18.42 and later · up to and including 6.18.*not 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-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.
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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 | 0ec45e80a82785ee147516fdecf5c93707dec119 | Vendor (CNA) |
| Linux Linux | 3ddb0d3e36507615e5ef010a879357a54870adf5 | Vendor (CNA) |
| Linux Linux | 41ae2b7d37c3dd82302167496836cca9f0328374 | Vendor (CNA) |
| Linux Linux | bc889dfcea9294a1eae7f8e2f3573a90764ae4d0 | Vendor (CNA) |
| Linux Linux | e75ef37d83c90b09bedb601624b47e168202b226 | 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 | 6.12.101-1 · Debian:13 | 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).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvd-secondary
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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/0ec45e80a82785ee147516fdecf5c93707dec119
- git.kernel.org/stable/c/3ddb0d3e36507615e5ef010a879357a54870adf5
- git.kernel.org/stable/c/41ae2b7d37c3dd82302167496836cca9f0328374
- git.kernel.org/stable/c/bc889dfcea9294a1eae7f8e2f3573a90764ae4d0
- git.kernel.org/stable/c/e75ef37d83c90b09bedb601624b47e168202b226
Vendor advisories and official records. Exploit/PoC links are deliberately left out.