CVE-2026-45876

None

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In the Linux kernel, the following vulnerability has been resolved:

arm64/gcs: Fix error handling in arch set shadow stack status()

alloc gcs() returns an error-encoded pointer on failure, which comes from do mmap(), not NULL.

The current NULL check fails to detect errors, which could lead to using an invalid GCS address.

Use IS ERR VALUE() to properly detect errors, consistent with the check in gcs alloc thread stack().

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Related Identifiers

CVE-2026-45876

Linux