net: ena: Fix incorrect descriptor free behavior (Linux Linux)

CVE-2024-35958
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 18 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
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)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 548c4940b9f1f527f81509468dd60b61418880b6 < b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 ; affected 548c4940b9f1f527f81509468dd60b61418880b6 < fdfbf54d128ab6ab255db138488f9650485795a2 ; affected 548c4940b9f1f527f81509468dd60b61418880b6 < 19ff8fed3338898b70b2aad831386c78564912e1 ; affected 548c4940b9f1f527f81509468dd60b61418880b6 < 5c7f2240d9835a7823d87f7460d8eae9f4e504c7 ; affected 548c4940b9f1f527f81509468dd60b61418880b6 < c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1d ; affected 548c4940b9f1f527f81509468dd60b61418880b6 < bf02d9fe00632d22fa91d34749c7aacf397b6cde
Linux · Linuxaffected 5.6 ; unaffected 0 < 5.6 ; unaffected 5.10.216 ≤ 5.10.* ; unaffected 5.15.156 ≤ 5.15.* ; unaffected 6.1.87 ≤ 6.1.* ; unaffected 6.6.28 ≤ 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