5.5

CVE-2024-49891: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-49891DEBIAN-CVE-2024-49891
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-49891 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.6% 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
0.24%
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 29 · Related 30
DLA-4076-1OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1SUSE-SU-2024:3984-1SUSE-SU-2024:3986-1SUSE-SU-2024:4100-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Validate hdwq pointers before dereferencing in reset/errata paths When the HBA is undergoing a reset or is handling an errata event, NULL ptr dereference crashes may occur in routines such as lpfc_sli_flush_io_rings(), lpfc_dev_loss_tmo_callbk(), or lpfc_abort_handler(). Add NULL ptr checks before dereferencing hdwq pointers that may have been freed due to operations colliding with a reset or errata event handler.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

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) | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 895427bd012ce5814fc9888c7c0ee9de44761833, < 5873aa7f814754085d418848b2089ef406a02dd0 | ≥ 895427bd012ce5814fc9888c7c0ee9de44761833, < 232a138bd843d48cb2368f604646d990db7640f3 | ≥ 895427bd012ce5814fc9888c7c0ee9de44761833, < 99a801e2fca39a6f31e543fc3383058a8955896f | ≥ 895427bd012ce5814fc9888c7c0ee9de44761833, < fd665c8dbdb19548965b0ae80c490de00e906366 | ≥ 895427bd012ce5814fc9888c7c0ee9de44761833, < 2be1d4f11944cd6283cb97268b3e17c4424945ca | 4.11
  • linux_kernel< 6.10.14 | ≥ 6.11, < 6.11.3
Debian1 product
  • linux< 6.1.123-1 | < 6.11.4-1

3 vendors · 137 products

References

26 links
Show all 26 references