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CVE-2026-72059— net: wwan: t7xx: destroy DMA pool on CLDMA late init failure

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 5.19版本存在安全漏洞，该漏洞源于t7xx_cldma_late_init()函数在初始化TX和RX环之前创建DMA池，若环初始化失败，错误路径未销毁DMA池，导致内存泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1070 · Indicator Removal

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 39d439047f1dc88f98b755d6f3a53a4ef8f0de21< cef50f9f9045ff5e6a9d62c5110522df98fca645 affected
39d439047f1dc88f98b755d6f3a53a4ef8f0de21< fd01247bde1add970fae7f0003af085333a256e6 affected
39d439047f1dc88f98b755d6f3a53a4ef8f0de21< ebd84cb129fac7f7933628c40fccdfa8a62805de affected
39d439047f1dc88f98b755d6f3a53a4ef8f0de21< e89b8829693e65217d587dceeaad4826c96c731b affected
39d439047f1dc88f98b755d6f3a53a4ef8f0de21< 0c0a8c7821485f32bdb4923fb22f2dd501a27d8a affected
39d439047f1dc88f98b755d6f3a53a4ef8f0de21< 2bd6f26d4ce1e87de4d736b1e8896daf3acf1c0e affected
5.19 affected
< 5.19 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-72059

Vulnerability Information
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Vulnerability Title
net: wwan: t7xx: destroy DMA pool on CLDMA late init failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: destroy DMA pool on CLDMA late init failure t7xx_cldma_late_init() creates md_ctrl->gpd_dmapool before initializing the TX and RX rings. If any ring initialization fails, the error path frees the already initialized rings but leaves the DMA pool allocated. Destroy md_ctrl->gpd_dmapool on the late-init failure path to avoid leaking the DMA pool.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 5.19版本存在安全漏洞，该漏洞源于t7xx_cldma_late_init()函数在初始化TX和RX环之前创建DMA池，若环初始化失败，错误路径未销毁DMA池，导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 39d439047f1dc88f98b755d6f3a53a4ef8f0de21 ~ cef50f9f9045ff5e6a9d62c5110522df98fca645 -
Linux Linux 5.19 -

II. Public POCs for CVE-2026-72059

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III. Intelligence Information for CVE-2026-72059

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Patches & Fixes for CVE-2026-72059 (6)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72217 9.8 CRITICAL SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing
CVE-2026-72491 9.8 CRITICAL net/9p: fix race condition on rdma->state in trans_rdma.c
CVE-2026-72221 9.8 CRITICAL sunrpc: wait for in-flight TLS handshake callback when cancel loses race
CVE-2026-72222 9.8 CRITICAL sunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-72220 9.8 CRITICAL sunrpc: harden rq_procinfo lifecycle to prevent double-free
CVE-2026-72398 9.8 CRITICAL sctp: add INIT verification after cookie unpacking
CVE-2026-72477 9.8 CRITICAL fs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-72466 9.8 CRITICAL xprtrdma: Fix bcall rep leak and unbounded peek
CVE-2026-72472 9.8 CRITICAL nfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-72473 9.8 CRITICAL xprtrdma: Decouple req recycling from RPC completion
CVE-2026-72399 9.8 CRITICAL net: enetc: check the number of BDs needed for xdp_frame
CVE-2026-74398 9.8 CRITICAL ipv6: addrconf: bail out of dad_failure when state is no longer POSTDAD

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72059

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