CVE-2024-27392

Summary

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.

Affected Software

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

• https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb
• https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb
• https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3

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