CVE-2024-35960— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于创建新的规则不能正确链接到树中。
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 74491de937125d0c98c9b9c9208b4105717a3caa< de0139719cdda82806a47580ca0df06fc85e0bd2 |
affected |
74491de937125d0c98c9b9c9208b4105717a3caa< 1263b0b26077b1183c3c45a0a2479573a351d423 |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< 3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801 |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< 7aaee12b804c5e0374e7b132b6ec2158ff33dd64 |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< 2e8dc5cffc844dacfa79f056dea88002312f253f |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< 5cf5337ef701830f173b4eec00a4f984adeb57a0 |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< adf67a03af39095f05d82050f15813d6f700159d |
affected | ||
74491de937125d0c98c9b9c9208b4105717a3caa< 7c6782ad4911cbee874e85630226ed389ff2e453 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-35960 基础信息
漏洞信息
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Vulnerability Title
net/mlx5: Properly link new fs rules into the tree
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Properly link new fs rules into the tree
Previously, add_rule_fg would only add newly created rules from the
handle into the tree when they had a refcount of 1. On the other hand,
create_flow_handle tries hard to find and reference already existing
identical rules instead of creating new ones.
These two behaviors can result in a situation where create_flow_handle
1) creates a new rule and references it, then
2) in a subsequent step during the same handle creation references it
again,
resulting in a rule with a refcount of 2 that is not linked into the
tree, will have a NULL parent and root and will result in a crash when
the flow group is deleted because del_sw_hw_rule, invoked on rule
deletion, assumes node->parent is != NULL.
This happened in the wild, due to another bug related to incorrect
handling of duplicate pkt_reformat ids, which lead to the code in
create_flow_handle incorrectly referencing a just-added rule in the same
flow handle, resulting in the problem described above. Full details are
at [1].
This patch changes add_rule_fg to add new rules without parents into
the tree, properly initializing them and avoiding the crash. This makes
it more consistent with how rules are added to an FTE in
create_flow_handle.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于创建新的规则不能正确链接到树中。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-35960 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-35960 邮件列表归档 (2)
CVE-2024-35960 其他参考 (6)
同批安全公告 · Linux · 2024-05-20 · 共 62 条
| CVE-2024-35969 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35980 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35987 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35993 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36001 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36007 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35954 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35949 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35950 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35951 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35948 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35994 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35990 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35958 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35968 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36009 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35979 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35998 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35971 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-35999 | 7.5 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 62 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-35960
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