CVE-2026-72489— nvec: nvec_rx_completed() 使用释放后漏洞
可能的 ATT&CK 技术 1AI
T1135 · Network Share Discovery影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | d6bdcf2e1019351cbc176e963b7756766bdd8721< 6b2ea886ebdae44a2394029844a4e78f58e1587d | affected |
d6bdcf2e1019351cbc176e963b7756766bdd8721< a37625c7b688fcf68a54263528eccbabfd7fa17a | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< 9f7fe4165a1f1014bdadc8e744c0fd3c2d8c0b89 | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< 08626fcfe12308ca3f8b22c538ba7dee0b2dce7a | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< f19a5bc059051143c489dd6f79a0f9c3bfd13aea | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< bb3d592c7d6c4ec8ac6640c690ca13298e7e8e90 | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< 5de04caa46b635e180cecbd164e333eca535db94 | affected | ||
d6bdcf2e1019351cbc176e963b7756766bdd8721< 26813881181deb3a32fbb59eadb2599cbe8423f6 | affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2026-72489 基础信息
漏洞信息
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Vulnerability Title
staging: nvec: fix use-after-free in nvec_rx_completed()
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: nvec: fix use-after-free in nvec_rx_completed() In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type. Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free. Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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-2026-72489 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-72489 补丁与修复 (8)
同批安全公告 · Linux · 2026-08-15 · 共 846 条
| CVE-2026-74280 | 10.0 CRITICAL | Marvell OCTEONTX 驱动 DMA清理循环索引错误漏洞 |
| CVE-2026-74279 | 10.0 CRITICAL | Cavium CPT DMA清理使用错误循环索引 |
| CVE-2026-72407 | 10.0 CRITICAL | Geneve 内核模块 inner network offset 验证漏洞 |
| CVE-2026-72408 | 10.0 CRITICAL | Geneve GRO提示处理缺陷 |
| CVE-2026-74309 | 10.0 CRITICAL | vdpa/octeon_ep 中断处理程序 IRQ 到环映射错误 |
| CVE-2026-74475 | 10.0 CRITICAL | vxlan 短路由中 neigh_ha_snapshot() 使用错误 |
| CVE-2026-72421 | 10.0 CRITICAL | IPv4 fib 本地/主表忽略错误路由 |
| CVE-2026-72493 | 9.9 CRITICAL | net: 在 enqueue_to_backlog() 中序列化 netif_running() 检查 |
| CVE-2026-72463 | 9.8 CRITICAL | xfrm: 异步恢复中设备使用后释放漏洞 |
| CVE-2026-72248 | 9.8 CRITICAL | netfilter flowtable IPIP隧道直接转发漏洞 |
| CVE-2026-72381 | 9.8 CRITICAL | ksmbd 耐久句柄检查中的use-after-free漏洞 |
| CVE-2026-72477 | 9.8 CRITICAL | NTFS3 重命名失败时调用 _ntfs_bad_inode 漏洞 |
| CVE-2026-72473 | 9.8 CRITICAL | xprtrdma 远程代码执行漏洞 |
| CVE-2026-72472 | 9.8 CRITICAL | NFS 使用rwsem保护文件锁列表遍历 |
| CVE-2026-74406 | 9.8 CRITICAL | VXLAN 内核模块远程代码执行漏洞 |
| CVE-2026-72222 | 9.8 CRITICAL | SunRPC 异步 TLS 握手回调中锁定服务传输 |
| CVE-2026-72137 | 9.8 CRITICAL | Linux xfrm nat_keepalive发送错误时双重释放漏洞 |
| CVE-2026-72226 | 9.8 CRITICAL | batman-adv TVLV越界检查溢出漏洞 |
| CVE-2026-74376 | 9.8 CRITICAL | md/raid10 复用r10bio处理丢弃时未重置读槽漏洞 |
| CVE-2026-72234 | 9.8 CRITICAL | batman-adv 未 realloc 时访问 skb->data 漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2026-72489
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