#VU98890 Use-after-free in Linux kernel - CVE-2024-47750

Vulnerability identifier: #VU98890

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-47750

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the hns_roce_v2_exit() and __hns_roce_hw_v2_uninit_instance() functions in drivers/infiniband/hw/hns/hns_roce_hw_v2.c. A local user can escalate privileges on the system.

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/2ccf1c75d39949d8ea043d04a2e92d7100ea723d
https://git.kernel.org/stable/c/d2d9c5127122745da6e887f451dd248cfeffca33
https://git.kernel.org/stable/c/dac2723d8bfa9cf5333f477741e6e5fa1ed34645
https://git.kernel.org/stable/c/60595923371c2ebe7faf82536c47eb0c967e3425
https://git.kernel.org/stable/c/fd8489294dd2beefb70f12ec4f6132aeec61a4d0

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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.