CVE-2024-27392

nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()

Description

In the Linux kernel, the following vulnerability has been resolved: nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse() When nvme_identify_ns() fails, it frees the pointer to the struct nvme_id_ns before it returns. However, ns_update_nuse() calls kfree() for the pointer even when nvme_identify_ns() fails. This results in KASAN double-free, which was observed with blktests nvme/045 with proposed patches [1] on the kernel v6.8-rc7. Fix the double-free by skipping kfree() when nvme_identify_ns() fails.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb patch
https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3 patch

Frequently Asked Questions

What is the severity of CVE-2024-27392?
CVE-2024-27392 has been scored as a high severity vulnerability.
How to fix CVE-2024-27392?
To fix CVE-2024-27392, 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-2024-27392 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-27392 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-2024-27392?
CVE-2024-27392 affects Linux Linux, Linux Linux.
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