5.5

CVE-2024-46761: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-46761DEBIAN-CVE-2024-46761
Published 18-09-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-46761 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.25%
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 33 · Related 28
DLA-4008-1DSA-5782-1MGASA-2024-0316MGASA-2024-0318RHSA-2025:6966SUSE-SU-2024:3551-1

Timeline

  1. 18-09-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv The hotplug driver for powerpc (pci/hotplug/pnv_php.c) causes a kernel crash when we try to hot-unplug/disable the PCIe switch/bridge from the PHB. The crash occurs because although the MSI data structure has been released during disable/hot-unplug path and it has been assigned with NULL, still during unregistration the code was again trying to explicitly disable the MSI which causes the NULL pointer dereference and kernel crash. The patch fixes the check during unregistration path to prevent invoking pci_disable_msi/msix() since its data structure is already freed.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.25%

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

Ubuntu130 products
  • linuxAll versions (No fix recorded) | < 5.4.0-200.220 | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1135.145 | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < 4eb4085c1346d19d4a05c55246eb93e74e671048 | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < c4c681999d385e28f84808bbf3a85ea8e982da55 | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < bc1faed19db95abf0933b104910a3fb01b138f59 | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < c0d8094dc740cfacf3775bbc6a1c4720459e8de4 | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < 438d522227374042b5c8798f8ce83bbe479dca4d | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < b82d4d5c736f4fd2ed224c35f554f50d1953d21e | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < bfc44075b19740d372f989f21dd03168bfda0689 | ≥ 49f4b08e61547a5ccd2db551d994c4503efe5666, < 335e35b748527f0c06ded9eebb65387f60647fda | 1fb738a3dc1304250c755e5e31715137c1c44c50 | bc4c9766324a7e9fda48de58691796430c8511bf | ≥ 4.9.14, < 4.10 | ≥ 4.10.2, < 4.11 | 4.11
  • linux_kernel< 4.19.322 | ≥ 4.20, < 5.4.284 | ≥ 5.5, < 5.10.226 | ≥ 5.11, < 5.15.167 | ≥ 5.16, < 6.1.110 | ≥ 6.2, < 6.6.51 | ≥ 6.7, < 6.10.10
Debian1 product
  • linux< 6.1.112-1 | < 6.10.11-1

3 vendors · 133 products

References

30 links
Show all 30 references