igbvf: Fix leak in TX DMA error cleanup (Linux Linux)

CVE-2026-74495
CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.51 % · centile 44 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: igbvf: Fix leak in TX DMA error cleanup If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always match the correct number of unmappings needed when dma_error is reached. Decrementing count before the while loop in dma_error causes an off-by-one error. If any mapping was successful before an unsuccessful mapping, exactly one DMA mapping (the head) would leak. This bug was introduced by a 2010 fix for an endless loop in dma_error. All other affected drivers have already been fixed.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected c1fa347f20f17f14a4a1575727fa24340e8a9117 < e42b7225c45f57b42306b80cdd3bda202bae7293 ; affected c1fa347f20f17f14a4a1575727fa24340e8a9117 < e3ed89c257f6361f13df23023cd10ace830330ad ; affected c1fa347f20f17f14a4a1575727fa24340e8a9117 < 56726ff12cb6759ab90d6f5332c2377aeca7d249 ; affected c1fa347f20f17f14a4a1575727fa24340e8a9117 < 31089f4eab42e0fc248ec80c26f9b0bad59ba4cc ; affected c1fa347f20f17f14a4a1575727fa24340e8a9117 < bc25d56c03e41c10bc4b40e99ca5d7b941675c04 ; affected c1fa347f20f17f14a4a1575727fa24340e8a9117 < 845a9cdd9b03b7b6fa8de3ee80579780350a7f65
Linux · Linuxaffected 2.6.33 ; unaffected 0 < 2.6.33 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.*

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