CVE-2023-54041
io_uring: fix memory leak when removing provided buffers
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix memory leak when removing provided buffers When removing provided buffers, io_buffer structs are not being disposed of, leading to a memory leak. They can't be freed individually, because they are allocated in page-sized groups. They need to be added to some free list instead, such as io_buffers_cache. All callers already hold the lock protecting it, apart from when destroying buffers, so had to extend the lock there.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 < ac48787f58d1068f4e06d627c1135784d64b4c72 cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 < c117c15927772d1624c29c092b6bd3f47c7faa48 cc3cec8367cba76a8ae4c271eba8450f3efc1ba3 < b4a72c0589fdea6259720375426179888969d6a2
Linux / Linux
5.18