CVE-2025-38405

nvmet: fix memory leak of bio integrity

Description

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix memory leak of bio integrity If nvmet receives commands with metadata there is a continuous memory leak of kmalloc-128 slab or more precisely bio->bi_integrity. Since commit bf4c89fc8797 ("block: don't call bio_uninit from bio_endio") each user of bio_init has to use bio_uninit as well. Otherwise the bio integrity is not getting free. Nvmet uses bio_init for inline bios. Uninit the inline bio to complete deallocation of integrity in bio.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/431e58d56fcb5ff1f9eb630724a922e0d2a941df
https://git.kernel.org/stable/c/2e2028fcf924d1c6df017033c8d6e28b735a0508
https://git.kernel.org/stable/c/190f4c2c863af7cc5bb354b70e0805f06419c038

Frequently Asked Questions

What is the severity of CVE-2025-38405?: CVE-2025-38405 has not yet been assigned a CVSS score.
How to fix CVE-2025-38405?: To fix CVE-2025-38405, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38405 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38405 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38405?: CVE-2025-38405 affects Linux Linux, Linux Linux.

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