CVE-2026-43123 (GCVE-0-2026-43123)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-06 11:27
VLAI?
Title
fbcon: check return value of con2fb_acquire_newinfo()
Summary
In the Linux kernel, the following vulnerability has been resolved: fbcon: check return value of con2fb_acquire_newinfo() If fbcon_open() fails when called from con2fb_acquire_newinfo() then info->fbcon_par pointer remains NULL which is later dereferenced. Add check for return value of the function con2fb_acquire_newinfo() to avoid it. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < d3e535533767c85788529e626478718b7e95a59f (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < 3b5a754ec86bc6064af9aca76eb191c2405e6b0c (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < a785c4e2a999c2d51dfcf40d317cfb30cc735d2c (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < 0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < 11a93180a70bb3095a9bd80d113d9277e30d9959 (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < f57b61624c86ef8f87f6e6b7dd0755de03d90e89 (git)
Affected: d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e , < 011a0502801c8536f64141a2b61362c14f456544 (git)
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    Linux Linux Affected: 2.6.23
Unaffected: 0 , < 2.6.23 (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/video/fbdev/core/fbcon.c"
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              "version": "6.12.75",
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              "status": "unaffected",
              "version": "6.19.6",
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              "version": "7.0",
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  }
}


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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

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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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