gfs2: Fix possible data races in gfs2_show_options() (Linux Linux)

CVE-2023-53622
HIGH 7.0

At a glance

Source
NVD
EPSS
EPSS 0.15 % · percentile 4 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix possible data races in gfs2_show_options() Some fields such as gt_logd_secs of the struct gfs2_tune are accessed without holding the lock gt_spin in gfs2_show_options(): val = sdp->sd_tune.gt_logd_secs; if (val != 30) seq_printf(s, ",commit=%d", val); And thus can cause data races when gfs2_show_options() and other functions such as gfs2_reconfigure() are concurrently executed: spin_lock(&gt->gt_spin); gt->gt_logd_secs = newargs->ar_commit; To fix these possible data races, the lock sdp->sd_tune.gt_spin is acquired before accessing the fields of gfs2_tune and released after these accesses. Further changes by Andreas: - Don't hold the spin lock over the seq_printf operations.

Weaknesses (CWE)

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

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 48c2b613616235d7c97fda5982f50100a6c79166 < 7e5bbeb7eb813bb2568e1d5d02587df943272e57 ; affected 48c2b613616235d7c97fda5982f50100a6c79166 < 235a5ae73cea29109a3e06f100493f17857e6a93 ; affected 48c2b613616235d7c97fda5982f50100a6c79166 < b4a7ab57effbed42624842f2ab2a49b177c21a47 ; affected 48c2b613616235d7c97fda5982f50100a6c79166 < 7c5b2649f6a37d45bfb7abf34c9b71d08677139f ; affected 48c2b613616235d7c97fda5982f50100a6c79166 < 85e888150075cb221270b64bf772341fc6bd11d9 ; affected 48c2b613616235d7c97fda5982f50100a6c79166 < a4f71523ed2123d63b431cc0cea4e9f363a0f054
Linux · Linuxaffected 2.6.31 ; unaffected 0 < 2.6.31 ; unaffected 4.14.324 ≤ 4.14.* ; unaffected 4.19.293 ≤ 4.19.* ; unaffected 5.4.255 ≤ 5.4.* ; unaffected 5.10.192 ≤ 5.10.*

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