nvme-fabrics: use reserved tag for reg read/write command (Linux Linux)

CVE-2024-41082
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.26 % · centile 17 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: nvme-fabrics: use reserved tag for reg read/write command In some scenarios, if too many commands are issued by nvme command in the same time by user tasks, this may exhaust all tags of admin_q. If a reset (nvme reset or IO timeout) occurs before these commands finish, reconnect routine may fail to update nvme regs due to insufficient tags, which will cause kernel hang forever. In order to workaround this issue, maybe we can let reg_read32()/reg_read64()/reg_write32() use reserved tags. This maybe safe for nvmf: 1. For the disable ctrl path, we will not issue connect command 2. For the enable ctrl / fw activate path, since connect and reg_xx() are called serially. So the reserved tags may still be enough while reg_xx() use reserved tags.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected e7832cb48a654cd12b2bc9181b2f0ad49d526ac6 < 2f07bdd363e95b71959d1ea1a7bca53c9e1f1efb ; affected e7832cb48a654cd12b2bc9181b2f0ad49d526ac6 < cc91c461cf3902993364ea85d8814ba7786c95b1 ; affected e7832cb48a654cd12b2bc9181b2f0ad49d526ac6 < 165da9c67a26f08c9b956c15d701da7690f45bcb ; affected e7832cb48a654cd12b2bc9181b2f0ad49d526ac6 < 7dc3bfcb4c9cc58970fff6aaa48172cb224d85aa
Linux · Linuxaffected 5.4 ; unaffected 0 < 5.4 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.9.11 ≤ 6.9.* ; unaffected 6.10 ≤ *

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