CVE-2026-64072: nvme: fix bio leak on mapping failure

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-19 · updated 2026-09-03
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: nvme: fix bio leak on mapping failure The local bio is always NULL, so we'd leak the bio if the integrity mapping failed. Just get it directly from the request.

Affected products

Linux kernel: from 6.18 before 6.18.34; from 6.19 before 7.0.11; 7.1-rc1, 7.1-rc2, 7.1-rc3 — fixed in 6.18.34, 7.0.11

How to fix

Upgrade to a fixed version: Linux kernel 6.18.34, 7.0.11. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/2279cd9c61a330e5de4d6eb0bc422820dd6fdf36
https://git.kernel.org/stable/c/51ec7fc4e10c5e332bf4007bdb7e4c6bf03c14c9
https://git.kernel.org/stable/c/fea4b46f84c50caf93c6c0f2a54b1be2edfb4491

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