CVE-2022-50812

In the Linux kernel, the following vulnerability has been resolved: security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6 A bad bug in clang's implementation of -fzero-call-used-regs can result in NULL pointer dereferences (see the links above the check for more information). Restrict CONFIG_CC_HAS_ZERO_CALL_USED_REGS to either a supported GCC version or a clang newer than 15.0.6, which will catch both a theoretical 15.0.7 and the upcoming 16.0.0, which will both have the bug fixed.

Package Linux Kernel
Published 2025-12-30
Last modified 2026-04-15
Patch available
Yes

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 5.15.86, 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from
≥ 5.15
Fixed in
✓ 5.15.86 5.15.x ✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2022-50812 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

4 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2022-50812?

    CVE-2022-50812 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.86, 6.0.16, 6.1.2 and others. CVE-2022-50812 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2022-50812?

    Yes — CVE-2022-50812 has been patched. Fixed versions include 5.15.86, 6.0.16, 6.1.2 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2022-50812 actively exploited?

    No — CVE-2022-50812 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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