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Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-debug-kvm  (opens in a new tab)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
0.13% (3rd percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELRTDEBUGKVM-16934385
  • published28 May 2026
  • disclosed27 May 2026
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Introduced: 27 May 2026

CVE-2026-45998  (opens in a new tab)
CWE-825  (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:

rxrpc: Fix potential UAF after skb_unshare() failure

If skb_unshare() fails to unshare a packet due to allocation failure in rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread()) will be NULL'd out. This will likely cause the call to trace_rxrpc_rx_done() to oops.

Fix this by moving the unsharing down to where rxrpc_input_call_event() calls rxrpc_input_call_packet(). There are a number of places prior to that where we ignore DATA packets for a variety of reasons (such as the call already being complete) for which an unshare is then avoided.

And with that, rxrpc_input_packet() doesn't need to take a pointer to the pointer to the packet, so change that to just a pointer.