#VU112762 NULL pointer dereference in Linux kernel - CVE-2025-38328

Vulnerability identifier: #VU112762

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-2025-38328

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 jffs2_scan_medium() function in fs/jffs2/scan.c, within the jffs2_mark_erased_block() function in fs/jffs2/erase.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/042fa922c84b5080401bcd8897d4ac4919d15075
https://git.kernel.org/stable/c/2b6d96503255a3ed676cd70f8368870c6d6a25c6
https://git.kernel.org/stable/c/38d767fb4a7766ec2058f97787e4c6e8d10343d6
https://git.kernel.org/stable/c/7e860296d7808de1db175c1eda29f94a2955dcc4
https://git.kernel.org/stable/c/cd42ddddd70abc7127c12b96c8c85dbd080ea56f
https://git.kernel.org/stable/c/d1b81776f337a9b997f797c70ac0a26d838a2168
https://git.kernel.org/stable/c/d96e6451a8d0fe62492d4cc942d695772293c05a
https://git.kernel.org/stable/c/f41c625328777f9ad572901ba0b0065bb9c9c1da

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?