bpf：从 lwt_seg6local_prog_ops 中删除 tst_run。（CVE-2024-46754）
CVE编号
CVE-2024-46754利用情况
暂无补丁情况
N/A披露时间
2024-09-18漏洞描述
In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from lwt_seg6local_prog_ops. The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first. Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL probably didn't work since it was introduced in commit 04d4b274e2a ("ipv6: sr: Add seg6local action End.BPF"). The reason is that the per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self test case but each BPF function expects it. Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
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| https://git.kernel.org/stable/c/9cd15511de7c619bbd0f54bb3f28e6e720ded5d6 | |
| https://git.kernel.org/stable/c/c13fda93aca118b8e5cd202e339046728ee7dddb |
- 攻击路径 N/A
- 攻击复杂度 N/A
- 权限要求 N/A
- 影响范围 N/A
- 用户交互 N/A
- 可用性 N/A
- 保密性 N/A
- 完整性 N/A
| CWE-ID | 漏洞类型 |
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