#VU96551 NULL pointer dereference in Linux kernel - CVE-2024-44939

Vulnerability identifier: #VU96551

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2024-44939

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to NULL pointer dereference within the dtInsert() function in fs/jfs/jfs_dtree.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.1.106, 6.6 - 6.6.46, 6.10 - 6.10.5

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External links
https://git.kernel.org/stable/c/6ea10dbb1e6c58384136e9adfd75f81951e423f6
https://git.kernel.org/stable/c/9c2ac38530d1a3ee558834dfa16c85a40fd0e702
https://git.kernel.org/stable/c/ce6dede912f064a855acf6f04a04cbb2c25b8c8c
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.107
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.6
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

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?