CVE-2026-43184

rnbd-srv: Zero the rsp buffer before using it

HIGH
7.5
CVSS Score
Published: May 6, 2026 at 11:27 AM UTC
Updated: August 5, 2026 at 01:24 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.11 ≤ v < 5.15.2025.16 ≤ v < 6.1.1655.8 ≤ v < 5.10.2525.8 ≤ v < 5.15.2025.8 ≤ v < 6.1.1655.8 ≤ v < 6.12.755.8 ≤ v < 6.18.165.8 ≤ v < 6.19.65.8 ≤ v < 6.6.1285.8 ≤ v < 7.06.13 ≤ v < 6.18.166.19 ≤ v < 6.19.66.2 ≤ v < 6.6.1286.7 ≤ v < 6.12.752de6c8de192b9341ffa5e84afe1ce6196d4eef415.8
Vendor states this is fixed in 30868a6a5238849d554295aff3ce61d242d7fad8 (fixed)
Vendor states this is fixed in 69d26698e4fd44935510553809007151b2fe4db5 (fixed)
Vendor states this is fixed in 7aac0a30dcf41cdb510526740d9a2ab1520c5d98 (fixed)
Vendor states this is fixed in 852475278ca5e96e0c0275950e1a84203e602b33 (fixed)
Vendor states this is fixed in b646e54d23b9b592d612a2036aab14e0f6c14206 (fixed)
Vendor states this is fixed in c94ede3c436dfbd9cedd9cb69f604f6fc901b6a2 (fixed)
Vendor states this is fixed in e2cacec7d4291300a282feb3af8eba57b93b15aa (fixed)
Vendor states this is fixed in e4272754063d52c9ad0169865add8816ba696471 (fixed)
Vendor states this is fixed in 5.10.252 (unaffected)
Vendor states this is fixed in 5.15.202 (unaffected)
Vendor states this is fixed in 5.8 (unaffected)
Vendor states this is fixed in 6.1.165 (unaffected)
Vendor states this is fixed in 6.12.75 (unaffected)
Vendor states this is fixed in 6.18.16 (unaffected)
Vendor states this is fixed in 6.19.6 (unaffected)
Vendor states this is fixed in 6.6.128 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

7.5HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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