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Race Condition The advisory has been revoked - it doesn't affect any version of package kernel-rt-debug-kvm  (opens in a new tab)

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EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELRTDEBUGKVM-15294456
  • published17 Feb 2026
  • disclosed14 Feb 2026
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Introduced: 14 Feb 2026

CVE-2026-23193  (opens in a new tab)
CWE-364  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

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

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

scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()

In iscsit_dec_session_usage_count(), the function calls complete() while holding the sess->session_usage_lock. Similar to the connection usage count logic, the waiter signaled by complete() (e.g., in the session release path) may wake up and free the iscsit_session structure immediately.

This creates a race condition where the current thread may attempt to execute spin_unlock_bh() on a session structure that has already been deallocated, resulting in a KASAN slab-use-after-free.

To resolve this, release the session_usage_lock before calling complete() to ensure all dereferences of the sess pointer are finished before the waiter is allowed to proceed with deallocation.