CVE-2026-74574— idxd驱动程序fdev设置失败清理漏洞
可能的 ATT&CK 技术 1AI
T1499 · Endpoint Denial of Service影响版本矩阵 12
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | e6fd6d7e5f0fe4a17a08e892afb5db800e7794ec< 778ccbded2c8749c5be7f0dfa04fc9977a36fb7e | affected |
e6fd6d7e5f0fe4a17a08e892afb5db800e7794ec< 8d5d28285728be47c82fdf1c48be4268293c90e7 | affected | ||
e6fd6d7e5f0fe4a17a08e892afb5db800e7794ec< 0679c0c189d2548f00e1bac95be28e2df5c6c7f7 | affected | ||
e6fd6d7e5f0fe4a17a08e892afb5db800e7794ec< 6e26a41c4c1a706edaaa7c7dffc6b3b945707a55 | affected | ||
e6fd6d7e5f0fe4a17a08e892afb5db800e7794ec< ee1d7274102285d78a53161fc705a8d8cd40b066 | affected | ||
6.4 | affected | ||
< 6.4 | unaffected | ||
6.6.151≤ 6.6.* | unaffected | ||
| … +4 条更多 | |||
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一、 漏洞 CVE-2026-74574 基础信息
漏洞信息
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Vulnerability Title
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() The failed_dev_add and failed_dev_name paths drop the file-device reference while wq->wq_lock is still held. If put_device(fdev) drops the last reference, idxd_file_dev_release() runs synchronously and tries to take wq->wq_lock again, deadlocking. Those paths also fall through into the later ctx cleanup labels even though idxd_file_dev_release() owns that cleanup and frees ctx. This can make idxd_xa_pasid_remove(ctx) and kfree(ctx) operate on a freed context. Move idxd_wq_get() before file-device setup can fail, since the release callback always calls idxd_wq_put(). Then unlock wq->wq_lock before put_device(fdev) and return directly from the file-device setup failure path, leaving ctx cleanup to the release callback.
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-2026-74574 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-74574 补丁与修复 (5)
同批安全公告 · Linux · 2026-08-15 · 共 848 条
| CVE-2026-72255 | netfilter nf_queue 桥接设备 pin 漏洞 | |
| CVE-2026-72268 | t dfxfb tdfxfb_probe 内存泄漏漏洞 | |
| CVE-2026-72267 | fbdev carminefb alloc_carmine_fb()潜在内存泄漏漏洞 | |
| CVE-2026-72266 | vesafb: vesafb_probe() 内存泄漏漏洞 | |
| CVE-2026-72265 | NVIDIA fbdev 驱动 nvidiafb_probe 内存泄漏漏洞 | |
| CVE-2026-72264 | tridentfb：trident_pci_probe() 潜在内存泄漏 | |
| CVE-2026-72262 | ASoC: SOF: bytes_ext 堆溢出漏洞 | |
| CVE-2026-72263 | ASoC SOF拓扑内存泄漏漏洞 | |
| CVE-2026-72261 | ASoC SOF ipc3-control 验证 snd_sof_update_control 中的大小 | |
| CVE-2026-72260 | Mediatek MT8192 SoC驱动运行时恢复检查漏洞 | |
| CVE-2026-72259 | mediatek mt8192 资源释放漏洞 | |
| CVE-2026-72258 | MT8183内存清理释放漏洞 | |
| CVE-2026-72256 | netfilter xt_cluster 哈希匹配中拒绝模板连接跟踪漏洞 | |
| CVE-2026-72257 | qcom q6apm NULL指针解引用漏洞 | |
| CVE-2026-72245 | host1x: host1x_device_parse_dt() 设备引用泄露漏洞 | |
| CVE-2026-72248 | netfilter flowtable IPIP隧道直接转发漏洞 | |
| CVE-2026-72247 | Linux内核 nf_conncount 连接数模块元组去重时区域比较逻辑错误漏洞 | |
| CVE-2026-72246 | netfilter flowtable 隧道路由方向设置错误漏洞 | |
| CVE-2026-72249 | netfilter flowtable IPIP头部推送方向目标地址使用漏洞 | |
| CVE-2026-72244 | gpu/buddy：对齐失败时终止try_harder |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-74574
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