CVE-2026-74624— netfilter: nf_conntrack 解锁前延迟记录无效
可能的 ATT&CK 技术 1AI
T1498 · Network Denial of Service影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | d9a6f0d0df1899ff9086a57abc600e414f4b8cdd< 63853eb20bba4e00b7cd0b8cfc19337bbaaf5037 | affected |
d9a6f0d0df1899ff9086a57abc600e414f4b8cdd< 9480fcf70a5aa9d320088a01c95df0e5e6391f4a | affected | ||
d9a6f0d0df1899ff9086a57abc600e414f4b8cdd< 0424186d570aa4d1ad17f516afb86bd9eaa4f42e | affected | ||
d9a6f0d0df1899ff9086a57abc600e414f4b8cdd< c0224327b7cbed9d3198e8dbec847281053dcd06 | affected | ||
d9a6f0d0df1899ff9086a57abc600e414f4b8cdd< 2d19b95c9723001f214f7a47d67b09f46238f200 | affected | ||
6.1 | affected | ||
< 6.1 | unaffected | ||
6.6.152≤ 6.6.* | unaffected | ||
| … +4 条更多 | |||
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一、 漏洞 CVE-2026-74624 基础信息
漏洞信息
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Vulnerability Title
netfilter: nf_conntrack: defer invalid log until after unlock
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: defer invalid log until after unlock TCP and SCTP conntrack paths can emit invalid-packet logs while ct->lock is still held. When invalid logging is routed to nfnetlink_log and conntrack export is enabled, the log path can re-enter conntrack netlink glue and dump the same conntrack again. Protocol attribute dumping may take ct->lock, so logging while holding that lock can deadlock. Defer the TCP invalid logs by storing only the minimal log context while ct->lock is held and emitting the log after unlocking. Also make the TCP timeout-lowering invalid path return whether a log is needed, then emit that log after unlocking. Do the same for the SCTP invalid state-transition log that can be reached while ct->lock is held. Add a lockdep assertion to nf_ct_l4proto_log_invalid() so future callers that log invalid conntracks while holding ct->lock are caught outside TCP and SCTP as well.
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
受影响产品
二、漏洞 CVE-2026-74624 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-74624 补丁与修复 (5)
同批安全公告 · Linux · 2026-08-22 · 共 150 条
| CVE-2026-74640 | ALSA FCP fcp_meter_ctl_get 缓冲区越界写漏洞 | |
| CVE-2026-74621 | Linux内核 act_ct 模块 sk_buff 泄漏漏洞 | |
| CVE-2026-74622 | Atlantic 网卡 RX 页面释放漏洞 | |
| CVE-2026-74623 | Atlantic网卡驱动TX缓冲区释放漏洞 | |
| CVE-2026-74625 | netfilter 网桥非IP路径模板连接跟踪释放漏洞 | |
| CVE-2026-74627 | net: devmem 防止 net-io v/页面混合漏洞 | |
| CVE-2026-74626 | NTB：ntb_netdev 分配失败时保留 RX 队列深度 | |
| CVE-2026-74628 | Linux内核 x25 远程计时器释放后使用漏洞 | |
| CVE-2026-74629 | net/dibs: 修复 dmb_clientid_arr 释放漏洞 | |
| CVE-2026-74631 | Linux SMC splice条目生命周期不平衡漏洞 | |
| CVE-2026-74630 | IPv6中in6_dev_get()防止复活inet6_dev漏洞 | |
| CVE-2026-74632 | Linux内核 huge_memory 竞态条件漏洞 | |
| CVE-2026-74633 | tracing: 修复模块事件缓存移除中的空指针解引用漏洞 | |
| CVE-2026-74634 | ring-buffer：禁用调整大小时防止子缓冲区间顺序变化 | |
| CVE-2026-74635 | fbdev bitblit bit_cursor() glyph索引越界漏洞 | |
| CVE-2026-74636 | tracing 工具更新字段与事件定义字段竞态条件漏洞 | |
| CVE-2026-74637 | Linux Perf 核心组件 组领导者 分离后释放后使用漏洞 | |
| CVE-2026-74639 | ALSA us144mkii 重新锚定捕获 URB 漏洞 | |
| CVE-2026-74638 | drm/v3d 调度器超时处理串行化漏洞 | |
| CVE-2026-74651 | rtl8723bs: 修复rtw_get_wpa_ie()中的越界读取漏洞 |
显示前 20 条，共 150 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-74624
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