CVE-2026-43184 (GCVE-0-2026-43184)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-08 12:41
VLAI?
Title
rnbd-srv: Zero the rsp buffer before using it
Summary
In the Linux kernel, the following vulnerability has been resolved: rnbd-srv: Zero the rsp buffer before using it Before using the data buffer to send back the response message, zero it completely. This prevents any stray bytes to be picked up by the client side when there the message is exchanged between different protocol versions.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < e4272754063d52c9ad0169865add8816ba696471 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < e2cacec7d4291300a282feb3af8eba57b93b15aa (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < b646e54d23b9b592d612a2036aab14e0f6c14206 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < 30868a6a5238849d554295aff3ce61d242d7fad8 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < 7aac0a30dcf41cdb510526740d9a2ab1520c5d98 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < c94ede3c436dfbd9cedd9cb69f604f6fc901b6a2 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < 852475278ca5e96e0c0275950e1a84203e602b33 (git)
Affected: 2de6c8de192b9341ffa5e84afe1ce6196d4eef41 , < 69d26698e4fd44935510553809007151b2fe4db5 (git)
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    Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 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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          "programFiles": [
            "drivers/block/rnbd/rnbd-srv.c"
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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

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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