#VU99821 NULL pointer dereference in Linux kernel - CVE-2024-50132

Vulnerability identifier: #VU99821

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-2024-50132

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 __trace_uprobe_create() function in kernel/trace/trace_uprobe.c, within the __trace_kprobe_create() function in kernel/trace/trace_kprobe.c, within the __trace_fprobe_create() function in kernel/trace/trace_fprobe.c, within the __trace_eprobe_create() function in kernel/trace/trace_eprobe.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
https://git.kernel.org/stable/c/6bc24db74fe4788cc7c2f30a113fc6aafba225a3
https://git.kernel.org/stable/c/08ccd1a57c4d3882e9a877eb2dcc66e50a3b0279
https://git.kernel.org/stable/c/73f35080477e893aa6f4c8d388352b871b288fbc

---

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.