Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-45876

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().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 9.7%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2026-45876


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