CVE-2026-72391— Linux内核SFP模块mii_bus内存释放漏洞
可能的 ATT&CK 技术 1AI
T1496 · Resource Hijacking影响版本矩阵 14
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | e85b1347ace677c3822c12d9332dfaaffe594da6< 92dd9a522f01ef57f633a8c1953cf6d48ef2bcd5 | affected |
e85b1347ace677c3822c12d9332dfaaffe594da6< d2c37f26d1a37f8177be5f354537f8ee3ec31cc2 | affected | ||
e85b1347ace677c3822c12d9332dfaaffe594da6< 3183b6f5510c876a1c4b4a6bdc3d0ad8940fe742 | affected | ||
e85b1347ace677c3822c12d9332dfaaffe594da6< 86d379fcf1b79bdf4bc2ac891297f30f63d041d8 | affected | ||
e85b1347ace677c3822c12d9332dfaaffe594da6< 2381bf3f484e8e4fd89a225445872ec14e036ab5 | affected | ||
e85b1347ace677c3822c12d9332dfaaffe594da6< 8f31efff9206f9f0adb853cad6916086aac4d5ef | affected | ||
6.1 | affected | ||
< 6.1 | unaffected | ||
| … +6 条更多 | |||
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一、 漏洞 CVE-2026-72391 基础信息
漏洞信息
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Vulnerability Title
net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy sfp_i2c_mdiobus_create() allocates the I2C MDIO bus with mdio_i2c_alloc(), a plain (non-devm) allocation, and registers it. sfp_i2c_mdiobus_destroy() only unregisters the bus and clears sfp->i2c_mii without calling mdiobus_free(). As the only reference to the bus is then cleared, the struct mii_bus is leaked. This is hit whenever a copper/RollBall SFP module that instantiated an MDIO bus is removed: sfp_sm_main() takes the global teardown path and calls sfp_i2c_mdiobus_destroy(). sfp_cleanup(), on driver unbind, frees sfp->i2c_mii directly, which is why the leak only triggered on module hot-removal and not on unbind. Free the bus in sfp_i2c_mdiobus_destroy() to match the allocation done in sfp_i2c_mdiobus_create().
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-2026-72391 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-72391 补丁与修复 (6)
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-2026-72391
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