Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-43109

In the Linux kernel, the following vulnerability has been resolved: x86: shadow stacks: proper error handling for mmap lock 김영민 reports that shstk_pop_sigframe() doesn't check for errors from mmap_read_lock_killable(), which is a silly oversight, and also shows that we haven't marked those functions with "__must_check", which would have immediately caught it. So let's fix both issues.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 1.7%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2026-43109


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