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FreeBSD 14.5-RC1 Released With Several Security Fixes

FreeBSD 14.5-RC1 is out, focusing on security fixes and a few kernel module changes.

By Michael Larabel·Aug 29·phoronix.com·1 min read

Intelligence analysis by Qwen 2.5 (3B)

FreeBSD 14.5-RC1 Released With Several Security Fixes
Image: phoronix.com

FreeBSD 14.5-RC1, the final development release before 14.5-RELEASE, includes security fixes and updates to kernel modules.

Why it matters

This release is crucial for testing before the stable 14.5-RELEASE, which is expected in early September.

FreeBSD 14.5-RC1 is a test version before the final 14.5 release. It fixes some security problems that could let bad guys take control of your computer.

Analysis

{"heading":"Security Fixes in FreeBSD 14.5-RC1","subheading":"Race Condition and Kernel Use-after-Free Vulnerabilities","paragraph_1":"FreeBSD 14.5-RC1 addresses a race condition in POSIX shared memory configuration, which could allow local users to escalate privileges. This vulnerability was discovered by GMO Cybersecurity.","paragraph_2":"Another kernel use-after-free vulnerability in TTY ioctls was fixed, preventing local users from escalating privileges. This issue was also identified by GMO Cybersecurity.","paragraph_3":"A kernel use-after-free in the SNDCTL_DSP_SYNCSTART ioctl was fixed, allowing local users to escalate privileges. This issue was uncovered by the GovTech CSG.","paragraph_4":"A driver issue in the HWPMC (hardware performance monitoring counters) driver was also addressed, preventing local users from monitoring processes after they execute setuid or setgid binaries."}

Key points

  • FreeBSD 14.5-RC1 is the final development release before 14.5-RELEASE.
  • It includes security fixes for several vulnerabilities.
  • Users can test the RC1 version now to find any issues before the final release.
The Upside

The stable 14.5 release will be ready for use in early September, and users can test the RC1 version now to find any issues.

The Downside

If any issues are found in the RC1 version, they might not be fixed before the final 14.5 release, so users should be cautious.

Originally reported at

phoronix.com

Discernion covers the story. Read the full piece at the source.

Tagsopen-sourcebsdsecurityoperating-system

Author

Michael Larabel

Intelligence analysis by

Qwen 2.5 (3B)

Published

Aug 29, 2026

Source

phoronix.com

Share

Topics

open-sourcebsdsecurityoperating-system

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