CVE-2026-99007: Linux kernel · drm/fb-helper: defer setup when fbdev_probe() fails, not just on -EAGAIN
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d510ed273854177f0a3ed330145858b2fe667f81 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in d510ed273854177f0a3ed330145858b2fe667f81, 755c94d178b7e972bb766199d34e4ba4f63a89eb, 4e7b508c7c60dec7a86b7eb2a1b7e6d174afa457 +2
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 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 specific Linux kernel commits. Users should update to a Linux kernel version that includes these fixes to resolve the issue.
Description
A flaw in the Linux kernel's drm/fb-helper subsystem caused improper handling of fbdev_probe() failures other than -EAGAIN. This led to a state where mode sets had modes and connectors but no framebuffer, causing a warning when the system tried to commit stale configurations. The issue was fixed by marking deferred setup on any failure, ensuring retries occur correctly.
References
- git.kernel.org/stable/c/4a2006c675758f0c765b36fec6b49d17e89159cf (opens in a new tab)
- git.kernel.org/stable/c/3b303696f61461b3569019d7fcac6a646652b2b4 (opens in a new tab)
- git.kernel.org/stable/c/4e7b508c7c60dec7a86b7eb2a1b7e6d174afa457 (opens in a new tab)
- git.kernel.org/stable/c/d510ed273854177f0a3ed330145858b2fe667f81 (opens in a new tab)
- git.kernel.org/stable/c/755c94d178b7e972bb766199d34e4ba4f63a89eb (opens in a new tab)