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THREAT OPS › Threat News › [NVD] CVE-2026-45998 (HIGH 7.8) — 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'

[NVD] CVE-2026-45998 (HIGH 7.8) — 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'

lownvdPublished 2026-05-27

CVE-2026-45998 CVSS: 7.8 HIGH Published: 2026-05-27T14:17:17.407

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

Indicators of compromise

CVE-2026-45998cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-45998