CVE-2026-64245 (GCVE-0-2026-64245)
Vulnerability from cvelistv5 – Published: 2026-07-24 15:31 – Updated: 2026-08-17 04:51
VLAI
EPSS
VEX
Title
fbdev: modedb: fix a possible UAF in fb_find_mode()
Summary
In the Linux kernel, the following vulnerability has been resolved:
fbdev: modedb: fix a possible UAF in fb_find_mode()
If mode_option is NULL, it is assigned from mode_option_buf:
if (!mode_option) {
fb_get_options(NULL, &mode_option_buf);
mode_option = mode_option_buf;
}
Later, name is assigned from mode_option:
const char *name = mode_option;
However, mode_option_buf is freed before name is no longer used:
kfree(mode_option_buf);
while name is still accessed by:
if ((name_matches(db[i], name, namelen) ||
Since name aliases mode_option_buf, this may result in a
use-after-free.
Fix this by extending the lifetime of mode_option_buf until the end of the
function by using scope-based resource management for cleanup.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
089d924d03d5c17b05d02992f57671ccfba1c4f0 , < c7dc382439f7b019e207055b52e9cec051d42fa9
(git)
Affected: 089d924d03d5c17b05d02992f57671ccfba1c4f0 , < f906347d75c7fc377041c6d3c535d0f08846aada (git) Affected: 089d924d03d5c17b05d02992f57671ccfba1c4f0 , < 4d418cf8daf57e454b4d855bf9b2419fd8e6a540 (git) Affected: 089d924d03d5c17b05d02992f57671ccfba1c4f0 , < 13b6f0cdd5cd5e60f682ec43134ab0e2024bd356 (git) Affected: 089d924d03d5c17b05d02992f57671ccfba1c4f0 , < 85b6256469cebdac395e7447147e06b2e151014f (git) |
guessed | |
| Linux | Linux |
Affected:
6.4
Unaffected: 0 , < 6.4 (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.95 , ≤ 6.12.* (semver) Unaffected: 6.18.38 , ≤ 6.18.* (semver) Unaffected: 7.1.3 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix) |
guessed |
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"title": "kernel: fbdev: modedb: fix a possible UAF in fb_find_mode()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64245.json",
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},
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"current_release_date": "2026-09-18T00:42:33Z",
"cve": "CVE-2026-64245",
"id": "CVE-2026-64245",
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"status": "interim",
"title": "SUSE CVE CVE-2026-64245",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64245.json",
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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