Race Condition The advisory has been revoked - it doesn't affect any version of package kernel-rt-debug-devel-matched  (opens in a new tab)


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EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTDEBUGDEVELMATCHED-13340706
  • published7 Oct 2025
  • disclosed4 Oct 2025

Introduced: 4 Oct 2025

CVE-2023-53614  (opens in a new tab)
CWE-362  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel-matched package and not the kernel-rt-debug-devel-matched package as distributed by RHEL.

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

mm/ksm: fix race with VMA iteration and mm_struct teardown

exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held in write mode. Ensure that the maple tree is still valid by checking ksm_test_exit() after taking the mmap_lock in read mode, but before the for_each_vma() iterator dereferences a destroyed maple tree.

Since the maple tree is destroyed, the flags telling lockdep to check an external lock has been cleared. Skip the for_each_vma() iterator to avoid dereferencing a maple tree without the external lock flag, which would create a lockdep warning.