Tracker / CVE-2024-56764
CVE-2024-56764
High 7.8
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.7 → 6.12.8 |
Analysis
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