NULL pointer dereference in Linux kernel - CVE-2024-43898

Vulnerability identifier: #VU96533

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2024-43898

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 12
openSUSE Leap Micro
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
Development Tools Module
Legacy Module
Public Cloud Module
Basesystem Module
SUSE Real Time Module
openSUSE Leap
openEuler
APEX Cloud Platform for Microsoft Azure
Storage Protect Plus Server
RecoverPoint for Virtual Machines
IBM DataPower Gateway
kgraft-patch-4_12_14-122_231-default
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kernel-livepatch-5_14_21-150500_55_83-default
kernel-livepatch-5_14_21-150500_55_83-default-debuginfo
kernel-livepatch-SLE15-SP5_Update_20-debugsource
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dtb-amazon
dtb-lg
dtb-rockchip
dtb-freescale
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dtb-apm
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dtb-nvidia
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dlm-kmp-64kb
dtb-broadcom
dtb-renesas
kernel-default-base-rebuild
kernel-docs-html
Red Hat OpenShift Dev Spaces

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the ext4_da_do_write_end() function in fs/ext4/inode.c, within the __block_commit_write() function in fs/buffer.c. A local user can perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://git.kernel.org/stable/c/3f6bbe6e07e5239294ecc3d2efa70d1f98aed52e
• https://git.kernel.org/stable/c/f619876ccbfd329ae785fe5d3289b9dcd6eb5901
• https://git.kernel.org/stable/c/83f4414b8f84249d538905825b088ff3ae555652
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.47