CVE-2026-31676

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Source
https://cve.org/CVERecord?id=CVE-2026-31676
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31676.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-31676
Downstream
Published
2026-04-25T08:46:52Z
Modified
2026-08-12T03:51:26Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
rxrpc: only handle RESPONSE during service challenge
Details

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: only handle RESPONSE during service challenge

Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31676.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
17926a79320afa9b95df6b977b40cca6d8713cea
Fixed
a1a8efde03a40b6c658d580e96644d9b9a2a0d3a
Fixed
6c3a0fbdafef8316e34ae22333e317a341e737cd
Fixed
0afdfd4941c1b60a1f5c361760daa970edca60cd
Fixed
a6bcf8010af093fe04f7100562e9542ab7882585
Fixed
29b44d904dceb832be880def08b8cb17a0aba91c
Fixed
d0035e634dae83237ab7f5681eb52b2f65d0ceb8
Fixed
03fd2ef73cb4ffd0af100a95b634af54f474414e
Fixed
c43ffdcfdbb5567b1f143556df8a04b4eeea041c

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31676.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.22
Fixed
5.10.258
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.209
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.175
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.136
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.84
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.23
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.13

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31676.json"