NULL pointer dereference in Linux kernel tracefs

1) NULL pointer dereference

EUVDB-ID: #VU97518

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46785

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 eventfs_remove_rec() function in fs/tracefs/event_inode.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

External links

http://git.kernel.org/stable/c/05e08297c3c298d8ec28e5a5adb55840312dd87e
http://git.kernel.org/stable/c/f579d17a86448779f9642ad8baca6e3036a8e2d6
http://git.kernel.org/stable/c/d2603279c7d645bf0d11fa253b23f1ab48fc8d3c

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.