• CVE-2021-47486

发布时间: 2024年6月6日

修改时间: 2025年4月13日

概要

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The bpf_jit_binary_free() function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps, jit_data->header will be NULL, which triggers a NULL dereference. Avoid this by checking the argument, prior calling the function.

CVSS v3 指标

NVD openEuler
Confidentiality None None
Attack Vector Network Local
CVSS评分 N/A 5.5
Attack Complexity Low Low
Privileges Required None Low
Scope Unchanged Unchanged
Integrity None None
User Interaction None None
Availability High High

安全公告

公告名 概要 发布时间
KylinSec-SA-2024-2634 In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix potential NULL dereference The bpf_jit_binary_free() function requires a non-NULL argument. When the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps, jit_data->header will be NULL, which triggers a NULL dereference. Avoid this by checking the argument, prior calling the function. 2024年6月6日

影响产品

产品 状态
KY3.4-5A kernel Unaffected
KY3.5.2 kernel Unaffected
V6 kernel Unaffected