7.5

CVE-2024-47749: linux NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2024-47749DEBIAN-CVE-2024-47749
Published 21-10-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2024-47749 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 45.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.57%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 50 · Related 48
DLA-4008-1DLA-4075-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Added NULL check for lookup_atid The lookup_atid() function can return NULL if the ATID is invalid or does not exist in the identifier table, which could lead to dereferencing a null pointer without a check in the `act_establish()` and `act_open_rpl()` functions. Add a NULL check to prevent null pointer dereferencing. Found by Linux Verification Center (linuxtesting.org) with SVACE.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

0.00 pp

From 0.57% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.57%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ cfdda9d764362ab77b11a410bb928400e6520d57, < b12e25d91c7f97958341538c7dc63ee49d01548f | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < 4e1fe68d695af367506ea3c794c5969630f21697 | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < dd598ac57dcae796cb58551074660c39b43fb155 | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < b11318dc8a1ec565300bb1a9073095af817cc508 | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < 39cb9f39913566ec5865581135f3e8123ad1aee1 | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < 0d50ae281a1712b9b2ca72830a96b8f11882358d | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < 54aaa3ed40972511e423b604324b881425b9ff1e | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < b9c94c8ba5a713817cffd74c4bacc05187469624 | ≥ cfdda9d764362ab77b11a410bb928400e6520d57, < e766e6a92410ca269161de059fff0843b8ddd65f | 2.6.35
  • linux_kernel≥ 2.6.35, < 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.54 | ≥ 6.7, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.2-1

3 vendors · 137 products

References

49 links
Show all 49 references