7.5

CVE-2024-43872: RDMA/hns: Fix soft lockup under heavy CEQE load

Modified
AliasesUBUNTU-CVE-2024-43872DEBIAN-CVE-2024-43872
Published 21-08-2024Last modified 30-10-2026

Vulnerability summary

CVE-2024-43872 is a high (CVSS 7.5) Improper Locking vulnerability in linux. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.8% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.39%
0%100%
Low · +0.06 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 12 · Related 12
SUSE-SU-2024:3189-1SUSE-SU-2024:3190-1SUSE-SU-2024:3194-1SUSE-SU-2024:3195-1SUSE-SU-2024:3209-1SUSE-SU-2024:3251-1

Timeline

  1. 21-08-2024
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix soft lockup under heavy CEQE load CEQEs are handled in interrupt handler currently. This may cause the CPU core staying in interrupt context too long and lead to soft lockup under heavy load. Handle CEQEs in BH workqueue and set an upper limit for the number of CEQE handled by a single call of work handler.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

33%

Versus all other CVEs

30-day change

Increase +0.06 pp

From 0.32% 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

Affected systems

Version check

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

Ubuntu133 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a5073d6054f75d7c94b3354206eec4b804d2fbd4, < 97740304c953ac43aebd24678ae999fe0bc9decf | ≥ a5073d6054f75d7c94b3354206eec4b804d2fbd4, < 06580b33c183c9f98e2a2ca96a86137179032c08 | ≥ a5073d6054f75d7c94b3354206eec4b804d2fbd4, < 2fdf34038369c0a27811e7b4680662a14ada1d6b | 4.16
  • linux_kernel≥ 4.16, < 6.10.3
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.10.3-1

3 vendors · 136 products

References

8 links