CVE-2026-64245: Linux kernel · fbdev: modedb: fix a possible UAF in fb_find_mode()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f906347d75c7fc377041c6d3c535d0f08846aada : patch Linux kernel soon.
Data as of 6 Nov 2026, 16:51 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-11-06.
- Patch
- Available – fixed in f906347d75c7fc377041c6d3c535d0f08846aada, c7dc382439f7b019e207055b52e9cec051d42fa9, 85b6256469cebdac395e7447147e06b2e151014f +2
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to the fixed versions identified by the commit hashes provided. No additional mitigation is required beyond applying the official patch.
Description
A use-after-free (UAF) vulnerability was identified and fixed in the Linux kernel's fbdev modedb component in function fb_find_mode(). The flaw occurs when a buffer (mode_option_buf) is freed while a pointer (name) still references it, potentially leading to use-after-free conditions. The fix involves extending the lifetime of the buffer until the function completes by using scope-based resource management.
References
- git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9 (opens in a new tab)
- git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada (opens in a new tab)
- git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540 (opens in a new tab)
- git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356 (opens in a new tab)
- git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f (opens in a new tab)