iommu: Return right value in iommu_sva_bind_device() (Linux Linux)

CVE-2024-40945
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: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < 700f564758882db7c039dfba9443fe762561a3f8 ; affected 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < cf34f8f66982a36e5cba0d05781b21ec9606b91e ; affected 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < 2973b8e7d127754de9013177c41c0b5547406998 ; affected 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < 6325eab6c108fed27f60ff51852e3eac0ba23f3f ; affected 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < 7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 ; affected 26b25a2b98e45aeb40eedcedc586ad5034cbd984 < 61a96da9649a6b6a1a5d5bde9374b045fdb5c12e
Linux · Linuxaffected 5.2 ; unaffected 0 < 5.2 ; unaffected 5.4.279 ≤ 5.4.* ; unaffected 5.10.221 ≤ 5.10.* ; unaffected 5.15.162 ≤ 5.15.* ; unaffected 6.1.129 ≤ 6.1.*

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