#VU102268 Input validation error in Linux kernel - CVE-2024-56722

Vulnerability identifier: #VU102268

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-2024-56722

CWE-ID: CWE-20

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 improper input validation within the free_srqc() function in drivers/infiniband/hw/hns/hns_roce_srq.c, within the hns_roce_mr_free() function in drivers/infiniband/hw/hns/hns_roce_mr.c, within the set_rwqe_data_seg(), free_mr_modify_rsv_qp(), free_mr_post_send_lp_wqe(), free_mr_send_cmd_to_hw(), hns_roce_v2_set_abs_fields(), hns_roce_v2_modify_qp(), hns_roce_v2_query_qp(), hns_roce_v2_destroy_qp_common(), hns_roce_v2_destroy_qp(), hns_roce_v2_modify_cq() and hns_roce_v2_query_cqc() functions in drivers/infiniband/hw/hns/hns_roce_hw_v2.c, within the hns_roce_table_put() function in drivers/infiniband/hw/hns/hns_roce_hem.c, within the free_cqc() function in drivers/infiniband/hw/hns/hns_roce_cq.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

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External links
https://git.kernel.org/stable/c/31c6fe9b79ed42440094f2367897aea0c0ce96ec
https://git.kernel.org/stable/c/323275ac2ff15b2b7b3eac391ae5d8c5a3c3a999
https://git.kernel.org/stable/c/a0e4c78770faa0d56d47391476fe1d827e72eded
https://git.kernel.org/stable/c/b4ba31e5aaffbda9b22d9a35c40b16dc39e475a6
https://git.kernel.org/stable/c/e2e64f9c42c717beb459ab209ec1c4baa73d3760

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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.