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Vulnerabilities CVE-2024-27392

CVE-2024-27392

High
Open
TLP:CLEAR

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

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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.

Details

CVSS Score
7.8
EPSS Score
0.26%

17.5th percentile

CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence
90%
Published
May 1, 2024
Last Modified
Aug 5, 2026
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