CVE-2026-98964nvmet: use the local P2P device on metadata allocation failure

Beschreibung

In the Linux kernel, the following vulnerability has been resolved: nvmet: use the local P2P device on metadata allocation failure nvmet_req_alloc_p2pmem_sgls() assigns req->p2p_dev only after the data and metadata SGL allocations succeed. If the data allocation succeeds but the metadata allocation fails, out_free_sg passes req->p2p_dev to pci_p2pmem_free_sgl() before that assignment has taken place. Pass the local p2p_dev argument instead, so cleanup uses the same PCI device as the successful data allocation.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Ubuntu-Korrekturen

• USN-9091-1 Linux kernel (NVIDIA Tegra) vulnerabilities Ubuntu 24.04 · 13.11.2026 · linux-nvidia-tegra
• USN-9066-1 Linux kernel (HWE) vulnerabilities Ubuntu 22.04 · 12.11.2026 · linux-hwe-6.8
• USN-9018-2 Linux kernel (HWE) vulnerabilities Ubuntu 24.04 · 12.11.2026 · linux-hwe-7.0

Referenzen und Patches

• https://git.kernel.org/stable/c/eb72e2eeff559eb1eb07b1d644ce2bc1a16c4a80
• https://git.kernel.org/stable/c/48c8b59429d09a7c3598de425acbc2d3f4e6647b
• https://git.kernel.org/stable/c/e8f24ae4f45efe6861f801c6ebd2789c9016f1bc
• https://git.kernel.org/stable/c/3c231142c4f4bb96836469eb276026ec55940093
• https://git.kernel.org/stable/c/32f21607911a1f69c8f0f93a6c28fe6f8490aa98
• https://git.kernel.org/stable/c/ce79a6c5cc1b8054ec8d3eba16adda4a36113438
• https://git.kernel.org/stable/c/73bf0f9579633b531098a475e6e55c9316763aed
• https://git.kernel.org/stable/c/4aa9c0f377a4de5e8fddce76b34ee4529639a1ff