CVE-2024-56764
ublk: detach gendisk from ublk device if add_disk() fails
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 6, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
bd23f6c2c2d00518e2f27f2d25cef795de9bee56 < 7d680f2f76a3417fdfc3946da7471e81464f7b41 bd23f6c2c2d00518e2f27f2d25cef795de9bee56 < 75cd4005da5492129917a4a4ee45e81660556104
Linux / Linux
6.7