#VU102483 NULL pointer dereference in Linux kernel - CVE-2024-56774

Vulnerability identifier: #VU102483

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-2024-56774

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 btrfs_search_slot() function in fs/btrfs/ctree.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/3ed51857a50f530ac7a1482e069dfbd1298558d4
https://git.kernel.org/stable/c/757171d1369b3b47f36932d40a05a0715496dcab
https://git.kernel.org/stable/c/93992c3d9629b02dccf6849238559d5c24f2dece
https://git.kernel.org/stable/c/c71d114ef68c95da5a82ec85a721ab31f5bd905b
https://git.kernel.org/stable/c/db66fb87c21e8ae724886e6a464dcbac562a64c6

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.