CVE-2024-27392: nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()
First published: Wed May 01 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 | |
| Linux Linux kernel | >=6.8<6.8.2 |
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Reference Links
- https://git.kernel.org/stable/c/534f9dc7fe495b3f9cc84363898ac50c5a25fccb
- https://git.kernel.org/stable/c/8d0d2447394b13fb22a069f0330f9c49b7fff9d3
- https://launchpad.net/bugs/cve/CVE-2024-27392
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27392
- https://nvd.nist.gov/vuln/detail/CVE-2024-27392
- https://security-tracker.debian.org/tracker/CVE-2024-27392
- https://ubuntu.com/security/CVE-2024-27392
- https://git.kernel.org/linus/8d0d2447394b13fb22a069f0330f9c49b7fff9d3
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