netfilter: nft_counter: serialize reset with spinlock

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-45897
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:03 UTC
Updated2026-05-27 14:48:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: netfilter: nft_counter: serialize reset with spinlock Add a global static spinlock to serialize counter fetch+reset operations, preventing concurrent dump-and-reset from underrunning values. The lock is taken before fetching the total so that two parallel resets cannot both read the same counter values and then both subtract them. A global lock is used for simplicity since resets are infrequent. If this becomes a bottleneck, it can be replaced with a per-net lock later.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.052520000 (date 2026-06-01)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3cb03edb4de33fd04c4ea55f47397b96a8657c53 0cdc6d5a26f2d1f7f15a43526841b679445c32e2 git Not specified
CNA Linux Linux affected 3cb03edb4de33fd04c4ea55f47397b96a8657c53 779c60a5190c42689534172f4b49e927c9959e4e git Not specified
CNA Linux Linux affected fb1adb05ea87b6149e65a31e511756c4f470d0cd git Not specified
CNA Linux Linux affected f123293db16dcd0cd81b246ae60e6362f0025d0a git Not specified
CNA Linux Linux affected 6.1.107 6.2 semver Not specified
CNA Linux Linux affected 6.6.48 6.7 semver Not specified
CNA Linux Linux affected 6.7 Not specified
CNA Linux Linux unaffected 6.7 semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0cdc6d5a26f2d1f7f15a43526841b679445c32e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/779c60a5190c42689534172f4b49e927c9959e4e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report