Is CVE-2024-49891 in the CISA KEV catalog?

No. CVE-2024-49891 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-49891?

CVE-2024-49891 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2024-49891?

CVE-2024-49891 has an EPSS score of 0.24% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-49891?

Upgrade linux on debian 12 to 6.1.123-1 or later. Fixes are available for 97 affected products.

CVE & CISA-KEV Catalog

CVE-2024-49891

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.123-1CVE-2024-49891

Fixed in:6.11.4-1CVE-2024-49891

linuxUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-awsUbuntu

Fixed in:6.8.0-1023.25USN-7311-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1023.25~22.04.1USN-7311-1

linux-azureUbuntu

Fixed in:6.8.0-1025.30USN-7384-1

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

linux-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-gcpUbuntu

Fixed in:6.8.0-1024.26USN-7304-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1024.26~22.04.1USN-7303-3

linux-gkeUbuntu

Fixed in:6.8.0-1019.23USN-7304-1

linux-gkeopUbuntu

Fixed in:6.8.0-1006.8USN-7304-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-ibmUbuntu

Fixed in:6.8.0-1022.22USN-7385-1

linux-image-6.11.0-1015-oemUbuntu

Fixed in:6.11.0-1015.15USN-7310-1

linux-image-6.8.0-1006-gkeopUbuntu

Fixed in:6.8.0-1006.8USN-7304-1

linux-image-6.8.0-1014-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-image-6.8.0-1019-gkeUbuntu

Fixed in:6.8.0-1019.23USN-7304-1

linux-image-6.8.0-1019-raspiUbuntu

Fixed in:6.8.0-1019.23USN-7303-3

linux-image-6.8.0-1020-oracleUbuntu

Fixed in:6.8.0-1020.21~22.04.1USN-7303-2

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-6.8.0-1020-oracle-64kUbuntu

Fixed in:6.8.0-1020.21~22.04.1USN-7303-2

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-6.8.0-1022-ibmUbuntu

Fixed in:6.8.0-1022.22USN-7385-1

linux-image-6.8.0-1022-nvidiaUbuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

Fixed in:6.8.0-1022.25USN-7303-1

linux-image-6.8.0-1022-nvidia-64kUbuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

Fixed in:6.8.0-1022.25USN-7303-1

linux-image-6.8.0-1022-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1022.25.2USN-7303-1

linux-image-6.8.0-1022-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1022.25.2USN-7303-1

linux-image-6.8.0-1023-awsUbuntu

Fixed in:6.8.0-1023.25~22.04.1USN-7311-1

Fixed in:6.8.0-1023.25USN-7311-1

linux-image-6.8.0-1024-gcpUbuntu

Fixed in:6.8.0-1024.26~22.04.1USN-7303-3

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-6.8.0-1024-gcp-64kUbuntu

Fixed in:6.8.0-1024.26~22.04.1USN-7303-3

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-6.8.0-1024-oemUbuntu

Fixed in:6.8.0-1024.24USN-7386-1

linux-image-6.8.0-1025-azureUbuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

Fixed in:6.8.0-1025.30USN-7384-1

linux-image-6.8.0-1025-azure-fdeUbuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

Fixed in:6.8.0-1025.30USN-7384-1

linux-image-6.8.0-54-genericUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-6.8.0-54-generic-64kUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-6.8.0-54-lowlatencyUbuntu

Fixed in:6.8.0-54.56.1~22.04.1USN-7301-1

Fixed in:6.8.0-54.56.1USN-7301-1

linux-image-6.8.0-54-lowlatency-64kUbuntu

Fixed in:6.8.0-54.56.1~22.04.1USN-7301-1

Fixed in:6.8.0-54.56.1USN-7301-1

linux-image-6.8.0-57-genericUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-6.8.0-57-generic-64kUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-awsUbuntu

Fixed in:6.8.0-1023.25~22.04.1USN-7311-1

Fixed in:6.8.0-1023.25USN-7311-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1023.25USN-7311-1

linux-image-azureUbuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

linux-image-azure-fde-lts-24.04Ubuntu

Fixed in:6.8.0-1025.30USN-7384-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1025.30USN-7384-1

linux-image-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1024.26~22.04.1USN-7303-3

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1024.26~22.04.1USN-7303-3

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1024.26USN-7304-1

linux-image-genericUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1019.23USN-7304-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1006.8USN-7304-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1006.8USN-7304-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1022.22USN-7385-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1022.22USN-7385-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1022.22USN-7385-1

linux-image-kvmUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-54.56.1USN-7301-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-54.56.1USN-7301-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-54.56.1~22.04.1USN-7301-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-54.56.1~22.04.1USN-7301-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1022.25USN-7303-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1022.25USN-7303-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1022.25.2USN-7303-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1022.25.2USN-7303-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-image-oem-24.04Ubuntu

Fixed in:6.8.0-1024.24USN-7386-1

linux-image-oem-24.04aUbuntu

Fixed in:6.8.0-1024.24USN-7386-1

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1015.15USN-7310-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1020.21~22.04.1USN-7303-2

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1020.21~22.04.1USN-7303-2

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1020.21USN-7303-2

linux-image-raspiUbuntu

Fixed in:6.8.0-1019.23USN-7303-3

linux-image-virtualUbuntu

Fixed in:6.8.0-54.56USN-7301-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-57.59~22.04.1USN-7403-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-54.56.1USN-7301-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-54.56.1~22.04.1USN-7301-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1022.25USN-7303-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1022.25~22.04.2USN-7303-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1022.25.2USN-7303-1

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1015.15USN-7310-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1024.24USN-7386-1

linux-oracleUbuntu

Fixed in:6.8.0-1020.21USN-7303-2

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1020.21~22.04.1USN-7303-2

linux-raspiUbuntu

Fixed in:6.8.0-1019.23USN-7303-3

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.24%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Patch3

Other references3

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.