NULL pointer dereference in Linux kernel pci hotplug driver



| Updated: 2025-05-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-46761
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU97513

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-2024-46761

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 pnv_php_disable_irq() function in drivers/pci/hotplug/pnv_php.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.19 - 6.10.9

CPE2.3 External links

https://git.kernel.org/stable/c/4eb4085c1346d19d4a05c55246eb93e74e671048
https://git.kernel.org/stable/c/c4c681999d385e28f84808bbf3a85ea8e982da55
https://git.kernel.org/stable/c/bc1faed19db95abf0933b104910a3fb01b138f59
https://git.kernel.org/stable/c/c0d8094dc740cfacf3775bbc6a1c4720459e8de4
https://git.kernel.org/stable/c/438d522227374042b5c8798f8ce83bbe479dca4d
https://git.kernel.org/stable/c/b82d4d5c736f4fd2ed224c35f554f50d1953d21e
https://git.kernel.org/stable/c/bfc44075b19740d372f989f21dd03168bfda0689
https://git.kernel.org/stable/c/335e35b748527f0c06ded9eebb65387f60647fda
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.322
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.226
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.167
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.284
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.110
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.51


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.



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