CVE-2024-56764 (GCVE-0-2024-56764)
Vulnerability from cvelistv5
Published
2025-01-06 16:20
Modified
2025-05-04 10:04
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: bd23f6c2c2d00518e2f27f2d25cef795de9bee56
Version: bd23f6c2c2d00518e2f27f2d25cef795de9bee56
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