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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-45998 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1f2740150f904bfa60e4bad74d65add3ccb5e7f8 kernel.org
https://git.kernel.org/stable/c/8fde6296c4d4da2be7ab761305ab7f232b94eefd kernel.org
https://git.kernel.org/stable/c/996b0487b3cdda4c91811dbb1c9564626bc840bd kernel.org
https://git.kernel.org/stable/c/bf20f46d94f1db38e6ffc0ca204a5fe0de01b495 kernel.org
https://git.kernel.org/stable/c/e3bf143b1e98fb3d6d9e6825bcd683974d478e8c kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-45998
NVD Published Date:
05/27/2026
NVD Last Modified:
05/27/2026
Source:
kernel.org