CVE-2024-56764
- Source
- https://cve.org/CVERecord?id=CVE-2024-56764
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56764.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-56764
- Downstream
- Related
- Published
- 2025-01-06T16:20:43Z
- Modified
- 2026-08-12T03:51:36Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ublk: detach gendisk from ublk device if add_disk() fails
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ublk: detach gendisk from ublk device if add_disk() fails
Inside ublk_abort_requests(), gendisk is grabbed for aborting all inflight requests. And ublk_abort_requests() is called when exiting the uring context or handling timeout.
If add_disk() fails, the gendisk may have been freed when calling ublk_abort_requests(), so use-after-free can be caused when getting disk's reference in ublk_abort_requests().
Fixes the bug by detaching gendisk from ublk device if add_disk() fails.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56764.json" }- References
-
- https://git.kernel.org/stable/c/75cd4005da5492129917a4a4ee45e81660556104
- https://git.kernel.org/stable/c/7d680f2f76a3417fdfc3946da7471e81464f7b41
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56764.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-56764
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git