Medium severity · published Jan 31, 2026
CVE-2025-71191
dmaengine: at_hdmac: fix device leak on of_dma_xlate()
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: at_hdmac: fix device leak on of_dma_xlate()
Make sure to drop the reference taken when looking up the DMA platform
device during of_dma_xlate() when releasing channel resources.
Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing
put_device() call in at_dma_xlate()") fixed the leak in a couple of
error paths but the reference is still leaking on successful allocation.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.10.1 before 5.10.249; 5.11 before 5.15.199; 5.16 before 6.1.162; 6.2 before 6.6.122; 6.7 before 6.12.67; 6.13 before 6.18.7; +9 more · source: NVD
LI
Linux · Linux
bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before 49d964cde422dc66fea514b7ab24aa729df7081d; bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before 4c67b4f45c8540ee4e62e24ca4608c6a9a81ee0f; bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before 48b2d7f530b83cb149dbf0e48f95ccadb2d90da9; bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before 987c71671367f42460689b78244d7b894c50999a; bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before 6a86cf2c09e149d5718a5b7090545f7566da9334; bbe89c8e3d598129b728d1388c3ad9abe4e8e261 before f3c23b7e941349505c3d40de2cc0acd93d9ac057; +2 more · source: vendor
RR
RUGGEDCOM RST2428P · Siemens
before V4.0 · source: CISA
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.6; V3.1.7; V3.1.6; V3.1.7 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.6; V3.1.7; V3.1.6; V3.1.7 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.6; V3.1.7 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-71191
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-71191
Patch
https://git.kernel.org/stable/c/48b2d7f530b83cb149dbf0e48f95ccadb2d90da9
Patch
https://git.kernel.org/stable/c/49d964cde422dc66fea514b7ab24aa729df7081d
Patch
https://git.kernel.org/stable/c/4c67b4f45c8540ee4e62e24ca4608c6a9a81ee0f
Patch
https://git.kernel.org/stable/c/6a86cf2c09e149d5718a5b7090545f7566da9334
Patch
https://git.kernel.org/stable/c/987c71671367f42460689b78244d7b894c50999a
Patch
https://git.kernel.org/stable/c/b9074b2d7a230b6e28caa23165e9d8bc0677d333
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