CVE-2026-80874 is a vulnerability in Linux Kernel
Published on September 4, 2026
arm64: dts: renesas: ironhide: Describe inline ECC carveouts
In the Linux kernel, the following vulnerability has been resolved:
arm64: dts: renesas: ironhide: Describe inline ECC carveouts
The DBSC5 DRAM controller protects DRAM content using inline ECC.
The inline ECC utilizes areas of DRAM for its operation, which are
in the DRAM address range, but must not be accessed or modified.
Describe the inline ECC carveout areas used by the DBSC5 controller
on this hardware as reserved-memory, which must not be accessed.
Include DRAM areas which are unprotected by ECC as well, those are
parts of the DRAM which directly precede the ECC carveout.
In case of high DRAM utilization, unless the inline ECC carveouts
are properly reserved, Linux may use and corrupt the memory used
by the DBSC5 DRAM controller for inline ECC, which would lead to
the system becoming unstable.
Products Associated with CVE-2026-80874
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Affected Versions
Linux:- Version ad142a4ef7106326bbf5c67eb39f21ef77fe8be3 and below 7cc51bb053f6b4bb17db4e10afcef3147566cb47 is affected.
- Version ad142a4ef7106326bbf5c67eb39f21ef77fe8be3 and below 6fa6ee724d8dadf392139e242ac936b5da730c4b is affected.
- Version 6.19 is affected.
- Before 6.19 is unaffected.
- Version 7.1.5, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.