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CVE-2026-98964

Linux: nvmet: use the local P2P device on metadata allocation failure

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 24 Oct 2026FIRST EPSS
Fixed in3c231142c4f4bb96836469eb276026ec55940093Also 32f21607911a1f69c8f0f93a6c28fe6f8490aa98, 73bf0f9579633b531098a475e6e55c9316763aed and 3 moreCVE List
Published23 Oct 2026Updated 24 Oct 2026CVE List

What fixes it

  • 3c231142c4f4bb96836469eb276026ec55940093LinuxCVE List
  • 32f21607911a1f69c8f0f93a6c28fe6f8490aa98LinuxCVE List
  • 73bf0f9579633b531098a475e6e55c9316763aedLinuxCVE List
  • 4aa9c0f377a4de5e8fddce76b34ee4529639a1ffLinuxCVE List
  • 5.11LinuxCVE List
  • 5.13LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 16

  • Linuxaffected: bcd9a0797d73eeff659582f23277e7ab6e5f18f3 before 3c231142c4f4bb96836469eb276026ec55940093CVE List
  • Linuxaffected: bcd9a0797d73eeff659582f23277e7ab6e5f18f3 before 32f21607911a1f69c8f0f93a6c28fe6f8490aa98CVE List
  • Linuxaffected: bcd9a0797d73eeff659582f23277e7ab6e5f18f3 before ce79a6c5cc1b8054ec8d3eba16adda4a36113438CVE List
  • Linuxaffected: bcd9a0797d73eeff659582f23277e7ab6e5f18f3 before 73bf0f9579633b531098a475e6e55c9316763aedCVE List
  • Linuxaffected: bcd9a0797d73eeff659582f23277e7ab6e5f18f3 before 4aa9c0f377a4de5e8fddce76b34ee4529639a1ffCVE List
  • Linuxaffected: c440cd080761b18a52cac20f2a42e5da1e3995afCVE List
  • Linuxaffected: 8a452d62e7cea3c8a2676a3b89a9118755a1a271CVE List
  • Linuxaffected: 5.10.43 before 5.11CVE List
  • Linuxaffected: 5.12.10 before 5.13CVE List
  • Linuxaffected: 5.13CVE List
  • Linuxunaffected: all versions before 5.13CVE List
  • Linuxunaffected: 6.6.160 through 6.6.*CVE List
  • Linuxunaffected: 6.12.113 through 6.12.*CVE List
  • Linuxunaffected: 6.18.57 through 6.18.*CVE List
  • Linuxunaffected: 7.2.11 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 5