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CVE-2026-72146— dmaengine: sh: rz-dmac: Move interrupt request after everything is set up

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存在安全漏洞，该漏洞源于DMA控制器驱动在完成初始化前请求中断，可能导致中断处理程序访问未初始化的channel->ch_base或ld_free、ld_queue、ld_active列表，造成无效内存访问。

CVSS 8.4 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 5000d37042a61ca556fde2782ca40dbfa802ea16< d24d53323e817d79a4bd111bd10b34dbc96e64a8 affected
5000d37042a61ca556fde2782ca40dbfa802ea16< 0e0c5b3cf374ebf3c589741751e1fbc67f53ec2f affected
5000d37042a61ca556fde2782ca40dbfa802ea16< 5b12de6229d662864ee22c11d4876652b40120f0 affected
5000d37042a61ca556fde2782ca40dbfa802ea16< 2a4d9e2234c3f817bb0ddbc8680d09ce9be84f93 affected
5000d37042a61ca556fde2782ca40dbfa802ea16< ec9f66c91bffdb69d309bae6dfb387562db7ebc8 affected
5000d37042a61ca556fde2782ca40dbfa802ea16< 07ae600bd353b22f31a8f1007269744fafc7f123 affected
5000d37042a61ca556fde2782ca40dbfa802ea16< 731712403ddb39d1a76a11abf339a0615bc85de7 affected
5.15 affected
… +8 more rows
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I. Basic Information for CVE-2026-72146

Vulnerability Information
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Vulnerability Title
dmaengine: sh: rz-dmac: Move interrupt request after everything is set up
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: sh: rz-dmac: Move interrupt request after everything is set up Once the interrupt is requested, the interrupt handler may run immediately. Since the IRQ handler can access channel->ch_base, which is initialized only after requesting the IRQ, this may lead to invalid memory access. Likewise, the IRQ thread may access uninitialized data (the ld_free, ld_queue, and ld_active lists), which may also lead to issues. Request the interrupts only after everything is set up. To keep the error path simpler, use dmam_alloc_coherent() instead of dma_alloc_coherent().
Source: 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
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存在安全漏洞，该漏洞源于DMA控制器驱动在完成初始化前请求中断，可能导致中断处理程序访问未初始化的channel->ch_base或ld_free、ld_queue、ld_active列表，造成无效内存访问。
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 5000d37042a61ca556fde2782ca40dbfa802ea16 ~ d24d53323e817d79a4bd111bd10b34dbc96e64a8 -
Linux Linux 5.15 -

II. Public POCs for CVE-2026-72146

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III. Intelligence Information for CVE-2026-72146

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Patches & Fixes for CVE-2026-72146 (7)

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-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72381 9.8 CRITICAL ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
CVE-2026-72393 9.8 CRITICAL eth: fbnic: don't cache shinfo across skb realloc
CVE-2026-74401 9.8 CRITICAL dlm: fix add msg handle in send_queue ordered
CVE-2026-74406 9.8 CRITICAL vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVE-2026-72355 9.8 CRITICAL netfs: Fix barriering when walking subrequest list
CVE-2026-72339 9.8 CRITICAL qede: fix off-by-one in BD ring consumption on build_skb failure
CVE-2026-72211 9.8 CRITICAL ntfs: grow index root value before reparent header update
CVE-2026-72194 9.8 CRITICAL fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow
CVE-2026-72351 9.8 CRITICAL gue: validate REMCSUM private option length
CVE-2026-72366 9.8 CRITICAL netfs: Fix netfs_create_write_req() to handle async cache object creation
CVE-2026-72098 9.8 CRITICAL dm-verity: fix buffer overflow in FEC calculation
CVE-2026-72083 9.8 CRITICAL scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE

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-2026-72146

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