High severity · published May 1, 2026
CVE-2026-31768
iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
iio: adc: ti-adc161s626: use DMA-safe memory for spi_read()
Add a DMA-safe buffer and use it for spi_read() instead of a stack
memory. All SPI buffers must be DMA-safe.
Since we only need up to 3 bytes, we just use a u8[] instead of __be16
and __be32 and change the conversion functions appropriately.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.9 before 6.1.168; 6.2 before 6.6.134; 6.7 before 6.12.81; 6.13 before 6.18.22; 6.19 before 6.19.12; 7.0; +5 more · source: NVD
LI
Linux · Linux
4d671b71beefbfc145b971a11e0c3cabde94b673 before b3bb8faeca1a2ef7be95ee8a512b639f9ffce947; 4d671b71beefbfc145b971a11e0c3cabde94b673 before fa64aab25aba47296aa8d12bb4c88ec3fecb2054; 4d671b71beefbfc145b971a11e0c3cabde94b673 before 67b3a91bdc48220bfb67155ab528121b9c822782; 4d671b71beefbfc145b971a11e0c3cabde94b673 before 014c6d27878d3883f7bb065610768fd021de1a96; 4d671b71beefbfc145b971a11e0c3cabde94b673 before d2d031b0786ea66ab0577c9d2d71435068d32199; 4d671b71beefbfc145b971a11e0c3cabde94b673 before 768461517a28d80fe81ea4d5d03a90cd184ea6ad; +1 more · source: vendor
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.6; V3.1.5; V3.1.7; V3.1.6; V3.1.5; V3.1.7 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.6; V3.1.5; V3.1.7; V3.1.6; V3.1.5; V3.1.7 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.6; V3.1.5; V3.1.7 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-31768
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-31768
Patch
https://git.kernel.org/stable/c/014c6d27878d3883f7bb065610768fd021de1a96
Patch
https://git.kernel.org/stable/c/67b3a91bdc48220bfb67155ab528121b9c822782
Patch
https://git.kernel.org/stable/c/768461517a28d80fe81ea4d5d03a90cd184ea6ad
Patch
https://git.kernel.org/stable/c/b3bb8faeca1a2ef7be95ee8a512b639f9ffce947
Patch
https://git.kernel.org/stable/c/d2d031b0786ea66ab0577c9d2d71435068d32199
Patch
https://git.kernel.org/stable/c/fa64aab25aba47296aa8d12bb4c88ec3fecb2054
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