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CVE-2024-43910

kernel: bpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses

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Severity

Moderate

Red Hat Product Security

7.1

CVSS 3.1

Review impact separately from score.

Published · August 26, 2024

Updated · October 29, 2026

Description

bpf in linux kernel permits passing in a modified CONST_PTR_TO_DYNPTR to a global function as an argument. BPF helpers can use the modified CONST_PTR_TO_DYNPTR within a global function context, which can lead to out of bounds memory accesses.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CWE-787 · Out-of-bounds Write