7.8

CVE-2024-35958: net: ena: Fix incorrect descriptor free behavior

Modified
AliasesUBUNTU-CVE-2024-35958DEBIAN-CVE-2024-35958
Published 20-05-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-35958 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 41 · Related 33
DLA-3842-1RHSA-2024:4106RHSA-2024:4108RHSA-2024:4211RHSA-2024:4352RHSA-2024:4447

Timeline

  1. 20-05-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.26%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.26% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu118 products
  • linux< 5.4.0-214.234 | < 5.15.0-116.126 | < 6.8.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1144.154 | < 5.15.0-1065.71 | < 6.8.0-1011.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 548c4940b9f1f527f81509468dd60b61418880b6, < b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 | ≥ 548c4940b9f1f527f81509468dd60b61418880b6, < fdfbf54d128ab6ab255db138488f9650485795a2 | ≥ 548c4940b9f1f527f81509468dd60b61418880b6, < 19ff8fed3338898b70b2aad831386c78564912e1 | ≥ 548c4940b9f1f527f81509468dd60b61418880b6, < 5c7f2240d9835a7823d87f7460d8eae9f4e504c7 | ≥ 548c4940b9f1f527f81509468dd60b61418880b6, < c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1d | ≥ 548c4940b9f1f527f81509468dd60b61418880b6, < bf02d9fe00632d22fa91d34749c7aacf397b6cde | 5.6
  • linux_kernel≥ 5.6, < 5.10.216 | ≥ 5.11, < 5.15.156 | ≥ 5.16, < 6.1.87 | ≥ 6.2, < 6.6.28 | ≥ 6.7, < 6.8.7 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3

3 vendors · 122 products

References

33 links
Show all 33 references