7.5

CVE-2023-52834: atl1c: Work around the DMA RX overflow issue

Modified
AliasesUBUNTU-CVE-2023-52834DEBIAN-CVE-2023-52834
Published 21-05-2024Last modified 05-08-2026

Vulnerability summary

CVE-2023-52834 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 51.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.65%
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 17 · Related 13
RHSA-2024:5101RHSA-2024:5102RHSA-2024:9315RHSA-2025:10701SUSE-SU-2024:2008-1SUSE-SU-2024:2011-1

Timeline

  1. 21-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: atl1c: Work around the DMA RX overflow issue This is based on alx driver commit 881d0327db37 ("net: alx: Work around the DMA RX overflow issue"). The alx and atl1c drivers had RX overflow error which was why a custom allocator was created to avoid certain addresses. The simpler workaround then created for alx driver, but not for atl1c due to lack of tester. Instead of using a custom allocator, check the allocated skb address and use skb_reserve() to move away from problematic 0x...fc0 address. Tested on AR8131 on Acer 4540.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.65%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.65% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu117 products
  • linuxAll versions (No fix recorded) | < 5.15.0-100.110
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1056.61
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 43250ddd75a35d1f7926d989a10fefd30c37eaa7, < c29a89b23f67ee592f4dee61f9d7efbf86d60315 | ≥ 43250ddd75a35d1f7926d989a10fefd30c37eaa7, < 57e44ff9c2c9747b2b1a53556810b0e5192655d6 | ≥ 43250ddd75a35d1f7926d989a10fefd30c37eaa7, < 54a6152da4993ec8e4b53dc3cf577f5a2c829afa | ≥ 43250ddd75a35d1f7926d989a10fefd30c37eaa7, < 32f08b7b430ee01ec47d730f961a3306c1c7b6fb | ≥ 43250ddd75a35d1f7926d989a10fefd30c37eaa7, < 86565682e9053e5deb128193ea9e88531bbae9cf | 2.6.29
  • linux_kernel< 5.15.140 | ≥ 5.16, < 6.1.64 | ≥ 6.2, < 6.5.13 | ≥ 6.6, < 6.6.3
Debian1 product
  • linux< 6.1.64-1 | < 6.5.13-1

3 vendors · 120 products

References

9 links