CVE-2026-98964
Published: October 28, 2026Last modified: November 3, 2026
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.191-r0) |
| 25 LTS | linux-lts | Fixed (6.12.115-r0) | |
| Stream | linux-lts | Fixed (6.18.58-r0) |
References
- https://git.kernel.org/stable/c/32f21607911a1f69c8f0f93a6c28fe6f8490aa98
- https://git.kernel.org/stable/c/3c231142c4f4bb96836469eb276026ec55940093
- https://git.kernel.org/stable/c/48c8b59429d09a7c3598de425acbc2d3f4e6647b
- https://git.kernel.org/stable/c/4aa9c0f377a4de5e8fddce76b34ee4529639a1ff
- https://git.kernel.org/stable/c/73bf0f9579633b531098a475e6e55c9316763aed
- https://git.kernel.org/stable/c/ce79a6c5cc1b8054ec8d3eba16adda4a36113438
- https://git.kernel.org/stable/c/e8f24ae4f45efe6861f801c6ebd2789c9016f1bc
- https://git.kernel.org/stable/c/eb72e2eeff559eb1eb07b1d644ce2bc1a16c4a80