rxrpc: Fix a race between socket set up and I/O thread creation (Linux Linux)

CVE-2024-49864
HIGH 7.5

At a glance

Source
NVD
EPSS
EPSS 0.45 % · percentile 39 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix a race between socket set up and I/O thread creation In rxrpc_open_socket(), it sets up the socket and then sets up the I/O thread that will handle it. This is a problem, however, as there's a gap between the two phases in which a packet may come into rxrpc_encap_rcv() from the UDP packet but we oops when trying to wake the not-yet created I/O thread. As a quick fix, just make rxrpc_encap_rcv() discard the packet if there's no I/O thread yet. A better, but more intrusive fix would perhaps be to rearrange things such that the socket creation is done by the I/O thread.

Weaknesses (CWE)

  • CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a275da62e8c111b897b9cb73eb91df2f4e475ca5 < cdf4bbbdb956d7426f687f38757ebca2a2759a0f ; affected a275da62e8c111b897b9cb73eb91df2f4e475ca5 < 56e415202b8a17de6496f4023e545fcb66f118ec ; affected a275da62e8c111b897b9cb73eb91df2f4e475ca5 < c64f5fc95e9612fdf75587c8e21e494e614c18e2 ; affected a275da62e8c111b897b9cb73eb91df2f4e475ca5 < bc212465326e8587325f520a052346f0b57360e6
Linux · Linuxaffected 6.2 ; unaffected 0 < 6.2 ; unaffected 6.6.55 ≤ 6.6.* ; unaffected 6.10.14 ≤ 6.10.* ; unaffected 6.11.3 ≤ 6.11.* ; unaffected 6.12 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD